diff options
Diffstat (limited to 'src/ipa')
290 files changed, 43822 insertions, 3331 deletions
diff --git a/src/ipa/ipa-sign-install.sh b/src/ipa/ipa-sign-install.sh index bcedb8b5..71696d5a 100755 --- a/src/ipa/ipa-sign-install.sh +++ b/src/ipa/ipa-sign-install.sh @@ -4,7 +4,7 @@ # # Author: Laurent Pinchart <laurent.pinchart@ideasonboard.com> # -# ipa-sign-install.sh - Regenerate IPA module signatures when installing +# Regenerate IPA module signatures when installing key=$1 shift diff --git a/src/ipa/ipa-sign.sh b/src/ipa/ipa-sign.sh index 8673dad1..69024213 100755 --- a/src/ipa/ipa-sign.sh +++ b/src/ipa/ipa-sign.sh @@ -4,7 +4,7 @@ # # Author: Laurent Pinchart <laurent.pinchart@ideasonboard.com> # -# ipa-sign.sh - Generate a signature for an IPA module +# Generate a signature for an IPA module key="$1" input="$2" diff --git a/src/ipa/ipu3/algorithms/af.cpp b/src/ipa/ipu3/algorithms/af.cpp index 12927eec..cf68fb59 100644 --- a/src/ipa/ipu3/algorithms/af.cpp +++ b/src/ipa/ipu3/algorithms/af.cpp @@ -2,7 +2,7 @@ /* * Copyright (C) 2021, Red Hat * - * af.cpp - IPU3 auto focus algorithm + * IPU3 auto focus algorithm */ #include "af.h" @@ -11,7 +11,6 @@ #include <chrono> #include <cmath> #include <fcntl.h> -#include <numeric> #include <sys/ioctl.h> #include <sys/stat.h> #include <sys/types.h> @@ -23,8 +22,6 @@ #include <libcamera/ipa/core_ipa_interface.h> -#include "libipa/histogram.h" - /** * \file af.h */ diff --git a/src/ipa/ipu3/algorithms/af.h b/src/ipa/ipu3/algorithms/af.h index c6168e30..68126d46 100644 --- a/src/ipa/ipu3/algorithms/af.h +++ b/src/ipa/ipu3/algorithms/af.h @@ -2,7 +2,7 @@ /* * Copyright (C) 2021, Red Hat * - * af.h - IPU3 Af algorithm + * IPU3 Af algorithm */ #pragma once diff --git a/src/ipa/ipu3/algorithms/agc.cpp b/src/ipa/ipu3/algorithms/agc.cpp index 606a237a..39d0aebb 100644 --- a/src/ipa/ipu3/algorithms/agc.cpp +++ b/src/ipa/ipu3/algorithms/agc.cpp @@ -2,21 +2,22 @@ /* * Copyright (C) 2021, Ideas On Board * - * ipu3_agc.cpp - AGC/AEC mean-based control algorithm + * AGC/AEC mean-based control algorithm */ #include "agc.h" #include <algorithm> #include <chrono> -#include <cmath> #include <libcamera/base/log.h> #include <libcamera/base/utils.h> #include <libcamera/control_ids.h> + #include <libcamera/ipa/core_ipa_interface.h> +#include "libipa/colours.h" #include "libipa/histogram.h" /** @@ -33,7 +34,7 @@ namespace ipa::ipu3::algorithms { * \class Agc * \brief A mean-based auto-exposure algorithm * - * This algorithm calculates a shutter time and an analogue gain so that the + * This algorithm calculates an exposure time and an analogue gain so that the * average value of the green channel of the brightest 2% of pixels approaches * 0.5. The AWB gains are not used here, and all cells in the grid have the same * weight, like an average-metering case. In this metering mode, the camera uses @@ -51,29 +52,37 @@ LOG_DEFINE_CATEGORY(IPU3Agc) static constexpr double kMinAnalogueGain = 1.0; /* \todo Honour the FrameDurationLimits control instead of hardcoding a limit */ -static constexpr utils::Duration kMaxShutterSpeed = 60ms; +static constexpr utils::Duration kMaxExposureTime = 60ms; /* Histogram constants */ static constexpr uint32_t knumHistogramBins = 256; -/* Target value to reach for the top 2% of the histogram */ -static constexpr double kEvGainTarget = 0.5; - -/* Number of frames to wait before calculating stats on minimum exposure */ -static constexpr uint32_t kNumStartupFrames = 10; +Agc::Agc() + : minExposureTime_(0s), maxExposureTime_(0s) +{ +} -/* - * Relative luminance target. +/** + * \brief Initialise the AGC algorithm from tuning files + * \param[in] context The shared IPA context + * \param[in] tuningData The YamlObject containing Agc tuning data + * + * This function calls the base class' tuningData parsers to discover which + * control values are supported. * - * It's a number that's chosen so that, when the camera points at a grey - * target, the resulting image brightness is considered right. + * \return 0 on success or errors from the base class */ -static constexpr double kRelativeLuminanceTarget = 0.16; - -Agc::Agc() - : frameCount_(0), minShutterSpeed_(0s), - maxShutterSpeed_(0s), filteredExposure_(0s) +int Agc::init(IPAContext &context, const YamlObject &tuningData) { + int ret; + + ret = parseTuningData(tuningData); + if (ret) + return ret; + + context.ctrlMap.merge(controls()); + + return 0; } /** @@ -90,10 +99,11 @@ int Agc::configure(IPAContext &context, IPAActiveState &activeState = context.activeState; stride_ = configuration.grid.stride; + bdsGrid_ = configuration.grid.bdsGrid; - minShutterSpeed_ = configuration.agc.minShutterSpeed; - maxShutterSpeed_ = std::min(configuration.agc.maxShutterSpeed, - kMaxShutterSpeed); + minExposureTime_ = configuration.agc.minExposureTime; + maxExposureTime_ = std::min(configuration.agc.maxExposureTime, + kMaxExposureTime); minAnalogueGain_ = std::max(configuration.agc.minAnalogueGain, kMinAnalogueGain); maxAnalogueGain_ = configuration.agc.maxAnalogueGain; @@ -102,168 +112,53 @@ int Agc::configure(IPAContext &context, activeState.agc.gain = minAnalogueGain_; activeState.agc.exposure = 10ms / configuration.sensor.lineDuration; - frameCount_ = 0; + context.activeState.agc.constraintMode = constraintModes().begin()->first; + context.activeState.agc.exposureMode = exposureModeHelpers().begin()->first; + + /* \todo Run this again when FrameDurationLimits is passed in */ + setLimits(minExposureTime_, maxExposureTime_, minAnalogueGain_, + maxAnalogueGain_); + resetFrameCount(); + return 0; } -/** - * \brief Estimate the mean value of the top 2% of the histogram - * \param[in] stats The statistics computed by the ImgU - * \param[in] grid The grid used to store the statistics in the IPU3 - * \return The mean value of the top 2% of the histogram - */ -double Agc::measureBrightness(const ipu3_uapi_stats_3a *stats, - const ipu3_uapi_grid_config &grid) const +Histogram Agc::parseStatistics(const ipu3_uapi_stats_3a *stats, + const ipu3_uapi_grid_config &grid) { - /* Initialise the histogram array */ uint32_t hist[knumHistogramBins] = { 0 }; + rgbTriples_.clear(); + for (unsigned int cellY = 0; cellY < grid.height; cellY++) { for (unsigned int cellX = 0; cellX < grid.width; cellX++) { uint32_t cellPosition = cellY * stride_ + cellX; const ipu3_uapi_awb_set_item *cell = reinterpret_cast<const ipu3_uapi_awb_set_item *>( - &stats->awb_raw_buffer.meta_data[cellPosition] - ); + &stats->awb_raw_buffer.meta_data[cellPosition]); + + rgbTriples_.push_back({ + cell->R_avg, + (cell->Gr_avg + cell->Gb_avg) / 2, + cell->B_avg + }); - uint8_t gr = cell->Gr_avg; - uint8_t gb = cell->Gb_avg; /* * Store the average green value to estimate the * brightness. Even the overexposed pixels are * taken into account. */ - hist[(gr + gb) / 2]++; + hist[(cell->Gr_avg + cell->Gb_avg) / 2]++; } } - /* Estimate the quantile mean of the top 2% of the histogram. */ - return Histogram(Span<uint32_t>(hist)).interQuantileMean(0.98, 1.0); -} - -/** - * \brief Apply a filter on the exposure value to limit the speed of changes - * \param[in] exposureValue The target exposure from the AGC algorithm - * - * The speed of the filter is adaptive, and will produce the target quicker - * during startup, or when the target exposure is within 20% of the most recent - * filter output. - * - * \return The filtered exposure - */ -utils::Duration Agc::filterExposure(utils::Duration exposureValue) -{ - double speed = 0.2; - - /* Adapt instantly if we are in startup phase. */ - if (frameCount_ < kNumStartupFrames) - speed = 1.0; - - /* - * If we are close to the desired result, go faster to avoid making - * multiple micro-adjustments. - * \todo Make this customisable? - */ - if (filteredExposure_ < 1.2 * exposureValue && - filteredExposure_ > 0.8 * exposureValue) - speed = sqrt(speed); - - filteredExposure_ = speed * exposureValue + - filteredExposure_ * (1.0 - speed); - - LOG(IPU3Agc, Debug) << "After filtering, exposure " << filteredExposure_; - - return filteredExposure_; -} - -/** - * \brief Estimate the new exposure and gain values - * \param[inout] frameContext The shared IPA frame Context - * \param[in] yGain The gain calculated based on the relative luminance target - * \param[in] iqMeanGain The gain calculated based on the relative luminance target - */ -void Agc::computeExposure(IPAContext &context, IPAFrameContext &frameContext, - double yGain, double iqMeanGain) -{ - const IPASessionConfiguration &configuration = context.configuration; - /* Get the effective exposure and gain applied on the sensor. */ - uint32_t exposure = frameContext.sensor.exposure; - double analogueGain = frameContext.sensor.gain; - - /* Use the highest of the two gain estimates. */ - double evGain = std::max(yGain, iqMeanGain); - - /* Consider within 1% of the target as correctly exposed */ - if (utils::abs_diff(evGain, 1.0) < 0.01) - LOG(IPU3Agc, Debug) << "We are well exposed (evGain = " - << evGain << ")"; - - /* extracted from Rpi::Agc::computeTargetExposure */ - - /* Calculate the shutter time in seconds */ - utils::Duration currentShutter = exposure * configuration.sensor.lineDuration; - - /* - * Update the exposure value for the next computation using the values - * of exposure and gain really used by the sensor. - */ - utils::Duration effectiveExposureValue = currentShutter * analogueGain; - - LOG(IPU3Agc, Debug) << "Actual total exposure " << currentShutter * analogueGain - << " Shutter speed " << currentShutter - << " Gain " << analogueGain - << " Needed ev gain " << evGain; - - /* - * Calculate the current exposure value for the scene as the latest - * exposure value applied multiplied by the new estimated gain. - */ - utils::Duration exposureValue = effectiveExposureValue * evGain; - - /* Clamp the exposure value to the min and max authorized */ - utils::Duration maxTotalExposure = maxShutterSpeed_ * maxAnalogueGain_; - exposureValue = std::min(exposureValue, maxTotalExposure); - LOG(IPU3Agc, Debug) << "Target total exposure " << exposureValue - << ", maximum is " << maxTotalExposure; - - /* - * Filter the exposure. - * \todo estimate if we need to desaturate - */ - exposureValue = filterExposure(exposureValue); - - /* - * Divide the exposure value as new exposure and gain values. - * - * Push the shutter time up to the maximum first, and only then - * increase the gain. - */ - utils::Duration shutterTime = - std::clamp<utils::Duration>(exposureValue / minAnalogueGain_, - minShutterSpeed_, maxShutterSpeed_); - double stepGain = std::clamp(exposureValue / shutterTime, - minAnalogueGain_, maxAnalogueGain_); - LOG(IPU3Agc, Debug) << "Divided up shutter and gain are " - << shutterTime << " and " - << stepGain; - - IPAActiveState &activeState = context.activeState; - /* Update the estimated exposure and gain. */ - activeState.agc.exposure = shutterTime / configuration.sensor.lineDuration; - activeState.agc.gain = stepGain; + return Histogram(Span<uint32_t>(hist)); } /** * \brief Estimate the relative luminance of the frame with a given gain - * \param[in] frameContext The shared IPA frame context - * \param[in] grid The grid used to store the statistics in the IPU3 - * \param[in] stats The IPU3 statistics and ISP results - * \param[in] gain The gain to apply to the frame - * \return The relative luminance - * - * This function estimates the average relative luminance of the frame that - * would be output by the sensor if an additional \a gain was applied. + * \param[in] gain The gain to apply in estimating luminance * * The estimation is based on the AWB statistics for the current frame. Red, * green and blue averages for all cells are first multiplied by the gain, and @@ -278,40 +173,22 @@ void Agc::computeExposure(IPAContext &context, IPAFrameContext &frameContext, * * More detailed information can be found in: * https://en.wikipedia.org/wiki/Relative_luminance + * + * \return The relative luminance of the frame */ -double Agc::estimateLuminance(IPAActiveState &activeState, - const ipu3_uapi_grid_config &grid, - const ipu3_uapi_stats_3a *stats, - double gain) +double Agc::estimateLuminance(double gain) const { - double redSum = 0, greenSum = 0, blueSum = 0; - - /* Sum the per-channel averages, saturated to 255. */ - for (unsigned int cellY = 0; cellY < grid.height; cellY++) { - for (unsigned int cellX = 0; cellX < grid.width; cellX++) { - uint32_t cellPosition = cellY * stride_ + cellX; - - const ipu3_uapi_awb_set_item *cell = - reinterpret_cast<const ipu3_uapi_awb_set_item *>( - &stats->awb_raw_buffer.meta_data[cellPosition] - ); - const uint8_t G_avg = (cell->Gr_avg + cell->Gb_avg) / 2; + RGB<double> sum{ 0.0 }; - redSum += std::min(cell->R_avg * gain, 255.0); - greenSum += std::min(G_avg * gain, 255.0); - blueSum += std::min(cell->B_avg * gain, 255.0); - } + for (unsigned int i = 0; i < rgbTriples_.size(); i++) { + sum.r() += std::min(std::get<0>(rgbTriples_[i]) * gain, 255.0); + sum.g() += std::min(std::get<1>(rgbTriples_[i]) * gain, 255.0); + sum.b() += std::min(std::get<2>(rgbTriples_[i]) * gain, 255.0); } - /* - * Apply the AWB gains to approximate colours correctly, use the Rec. - * 601 formula to calculate the relative luminance, and normalize it. - */ - double ySum = redSum * activeState.awb.gains.red * 0.299 - + greenSum * activeState.awb.gains.green * 0.587 - + blueSum * activeState.awb.gains.blue * 0.114; - - return ySum / (grid.height * grid.width) / 255; + RGB<double> gains{{ rGain_, gGain_, bGain_ }}; + double ySum = rec601LuminanceFromRGB(sum * gains); + return ySum / (bdsGrid_.height * bdsGrid_.width) / 255; } /** @@ -330,44 +207,36 @@ void Agc::process(IPAContext &context, [[maybe_unused]] const uint32_t frame, const ipu3_uapi_stats_3a *stats, ControlList &metadata) { - /* - * Estimate the gain needed to have the proportion of pixels in a given - * desired range. iqMean is the mean value of the top 2% of the - * cumulative histogram, and we want it to be as close as possible to a - * configured target. - */ - double iqMean = measureBrightness(stats, context.configuration.grid.bdsGrid); - double iqMeanGain = kEvGainTarget * knumHistogramBins / iqMean; + Histogram hist = parseStatistics(stats, context.configuration.grid.bdsGrid); + rGain_ = context.activeState.awb.gains.red; + gGain_ = context.activeState.awb.gains.blue; + bGain_ = context.activeState.awb.gains.green; /* - * Estimate the gain needed to achieve a relative luminance target. To - * account for non-linearity caused by saturation, the value needs to be - * estimated in an iterative process, as multiplying by a gain will not - * increase the relative luminance by the same factor if some image - * regions are saturated. + * The Agc algorithm needs to know the effective exposure value that was + * applied to the sensor when the statistics were collected. */ - double yGain = 1.0; - double yTarget = kRelativeLuminanceTarget; - - for (unsigned int i = 0; i < 8; i++) { - double yValue = estimateLuminance(context.activeState, - context.configuration.grid.bdsGrid, - stats, yGain); - double extraGain = std::min(10.0, yTarget / (yValue + .001)); - - yGain *= extraGain; - LOG(IPU3Agc, Debug) << "Y value: " << yValue - << ", Y target: " << yTarget - << ", gives gain " << yGain; - if (extraGain < 1.01) - break; - } - - computeExposure(context, frameContext, yGain, iqMeanGain); - frameCount_++; - utils::Duration exposureTime = context.configuration.sensor.lineDuration * frameContext.sensor.exposure; + double analogueGain = frameContext.sensor.gain; + utils::Duration effectiveExposureValue = exposureTime * analogueGain; + + utils::Duration newExposureTime; + double aGain, dGain; + std::tie(newExposureTime, aGain, dGain) = + calculateNewEv(context.activeState.agc.constraintMode, + context.activeState.agc.exposureMode, hist, + effectiveExposureValue); + + LOG(IPU3Agc, Debug) + << "Divided up exposure time, analogue gain and digital gain are " + << newExposureTime << ", " << aGain << " and " << dGain; + + IPAActiveState &activeState = context.activeState; + /* Update the estimated exposure time and gain. */ + activeState.agc.exposure = newExposureTime / context.configuration.sensor.lineDuration; + activeState.agc.gain = aGain; + metadata.set(controls::AnalogueGain, frameContext.sensor.gain); metadata.set(controls::ExposureTime, exposureTime.get<std::micro>()); @@ -377,7 +246,6 @@ void Agc::process(IPAContext &context, [[maybe_unused]] const uint32_t frame, utils::Duration frameDuration = context.configuration.sensor.lineDuration * vTotal; metadata.set(controls::FrameDuration, frameDuration.get<std::micro>()); - } REGISTER_IPA_ALGORITHM(Agc, "Agc") diff --git a/src/ipa/ipu3/algorithms/agc.h b/src/ipa/ipu3/algorithms/agc.h index 9d6e3ff1..890c271b 100644 --- a/src/ipa/ipu3/algorithms/agc.h +++ b/src/ipa/ipu3/algorithms/agc.h @@ -2,7 +2,7 @@ /* * Copyright (C) 2021, Ideas On Board * - * agc.h - IPU3 AGC/AEC mean-based control algorithm + * IPU3 AGC/AEC mean-based control algorithm */ #pragma once @@ -13,6 +13,9 @@ #include <libcamera/geometry.h> +#include "libipa/agc_mean_luminance.h" +#include "libipa/histogram.h" + #include "algorithm.h" namespace libcamera { @@ -21,12 +24,13 @@ struct IPACameraSensorInfo; namespace ipa::ipu3::algorithms { -class Agc : public Algorithm +class Agc : public Algorithm, public AgcMeanLuminance { public: Agc(); ~Agc() = default; + int init(IPAContext &context, const YamlObject &tuningData) override; int configure(IPAContext &context, const IPAConfigInfo &configInfo) override; void process(IPAContext &context, const uint32_t frame, IPAFrameContext &frameContext, @@ -34,27 +38,22 @@ public: ControlList &metadata) override; private: - double measureBrightness(const ipu3_uapi_stats_3a *stats, - const ipu3_uapi_grid_config &grid) const; - utils::Duration filterExposure(utils::Duration currentExposure); - void computeExposure(IPAContext &context, IPAFrameContext &frameContext, - double yGain, double iqMeanGain); - double estimateLuminance(IPAActiveState &activeState, - const ipu3_uapi_grid_config &grid, - const ipu3_uapi_stats_3a *stats, - double gain); - - uint64_t frameCount_; + double estimateLuminance(double gain) const override; + Histogram parseStatistics(const ipu3_uapi_stats_3a *stats, + const ipu3_uapi_grid_config &grid); - utils::Duration minShutterSpeed_; - utils::Duration maxShutterSpeed_; + utils::Duration minExposureTime_; + utils::Duration maxExposureTime_; double minAnalogueGain_; double maxAnalogueGain_; - utils::Duration filteredExposure_; - uint32_t stride_; + double rGain_; + double gGain_; + double bGain_; + ipu3_uapi_grid_config bdsGrid_; + std::vector<std::tuple<uint8_t, uint8_t, uint8_t>> rgbTriples_; }; } /* namespace ipa::ipu3::algorithms */ diff --git a/src/ipa/ipu3/algorithms/algorithm.h b/src/ipa/ipu3/algorithms/algorithm.h index ae134a94..c7801f93 100644 --- a/src/ipa/ipu3/algorithms/algorithm.h +++ b/src/ipa/ipu3/algorithms/algorithm.h @@ -2,7 +2,7 @@ /* * Copyright (C) 2021, Ideas On Board * - * algorithm.h - IPU3 control algorithm interface + * IPU3 control algorithm interface */ #pragma once diff --git a/src/ipa/ipu3/algorithms/awb.cpp b/src/ipa/ipu3/algorithms/awb.cpp index 5abd4621..55de05d9 100644 --- a/src/ipa/ipu3/algorithms/awb.cpp +++ b/src/ipa/ipu3/algorithms/awb.cpp @@ -2,7 +2,7 @@ /* * Copyright (C) 2021, Ideas On Board * - * awb.cpp - AWB control algorithm + * AWB control algorithm */ #include "awb.h" @@ -13,6 +13,8 @@ #include <libcamera/control_ids.h> +#include "libipa/colours.h" + /** * \file awb.h */ @@ -301,51 +303,24 @@ void Awb::prepare(IPAContext &context, params->use.acc_ccm = 1; } -/** - * The function estimates the correlated color temperature using - * from RGB color space input. - * In physics and color science, the Planckian locus or black body locus is - * the path or locus that the color of an incandescent black body would take - * in a particular chromaticity space as the blackbody temperature changes. - * - * If a narrow range of color temperatures is considered (those encapsulating - * daylight being the most practical case) one can approximate the Planckian - * locus in order to calculate the CCT in terms of chromaticity coordinates. - * - * More detailed information can be found in: - * https://en.wikipedia.org/wiki/Color_temperature#Approximation - */ -uint32_t Awb::estimateCCT(double red, double green, double blue) -{ - /* Convert the RGB values to CIE tristimulus values (XYZ) */ - double X = (-0.14282) * (red) + (1.54924) * (green) + (-0.95641) * (blue); - double Y = (-0.32466) * (red) + (1.57837) * (green) + (-0.73191) * (blue); - double Z = (-0.68202) * (red) + (0.77073) * (green) + (0.56332) * (blue); - - /* Calculate the normalized chromaticity values */ - double x = X / (X + Y + Z); - double y = Y / (X + Y + Z); - - /* Calculate CCT */ - double n = (x - 0.3320) / (0.1858 - y); - return 449 * n * n * n + 3525 * n * n + 6823.3 * n + 5520.33; -} - /* Generate an RGB vector with the average values for each zone */ void Awb::generateZones() { zones_.clear(); for (unsigned int i = 0; i < kAwbStatsSizeX * kAwbStatsSizeY; i++) { - RGB zone; double counted = awbStats_[i].counted; if (counted >= cellsPerZoneThreshold_) { - zone.G = awbStats_[i].sum.green / counted; - if (zone.G >= kMinGreenLevelInZone) { - zone.R = awbStats_[i].sum.red / counted; - zone.B = awbStats_[i].sum.blue / counted; + RGB<double> zone{{ + static_cast<double>(awbStats_[i].sum.red), + static_cast<double>(awbStats_[i].sum.green), + static_cast<double>(awbStats_[i].sum.blue) + }}; + + zone /= counted; + + if (zone.g() >= kMinGreenLevelInZone) zones_.push_back(zone); - } } } } @@ -412,32 +387,32 @@ void Awb::awbGreyWorld() * consider some variations, such as normalising all the zones first, or * doing an L2 average etc. */ - std::vector<RGB> &redDerivative(zones_); - std::vector<RGB> blueDerivative(redDerivative); + std::vector<RGB<double>> &redDerivative(zones_); + std::vector<RGB<double>> blueDerivative(redDerivative); std::sort(redDerivative.begin(), redDerivative.end(), - [](RGB const &a, RGB const &b) { - return a.G * b.R < b.G * a.R; + [](RGB<double> const &a, RGB<double> const &b) { + return a.g() * b.r() < b.g() * a.r(); }); std::sort(blueDerivative.begin(), blueDerivative.end(), - [](RGB const &a, RGB const &b) { - return a.G * b.B < b.G * a.B; + [](RGB<double> const &a, RGB<double> const &b) { + return a.g() * b.b() < b.g() * a.b(); }); /* Average the middle half of the values. */ int discard = redDerivative.size() / 4; - RGB sumRed(0, 0, 0); - RGB sumBlue(0, 0, 0); + RGB<double> sumRed{ 0.0 }; + RGB<double> sumBlue{ 0.0 }; for (auto ri = redDerivative.begin() + discard, bi = blueDerivative.begin() + discard; ri != redDerivative.end() - discard; ri++, bi++) sumRed += *ri, sumBlue += *bi; - double redGain = sumRed.G / (sumRed.R + 1), - blueGain = sumBlue.G / (sumBlue.B + 1); + double redGain = sumRed.g() / (sumRed.r() + 1), + blueGain = sumBlue.g() / (sumBlue.b() + 1); /* Color temperature is not relevant in Grey world but still useful to estimate it :-) */ - asyncResults_.temperatureK = estimateCCT(sumRed.R, sumRed.G, sumBlue.B); + asyncResults_.temperatureK = estimateCCT({{ sumRed.r(), sumRed.g(), sumBlue.b() }}); /* * Gain values are unsigned integer value ranging [0, 8) with 13 bit diff --git a/src/ipa/ipu3/algorithms/awb.h b/src/ipa/ipu3/algorithms/awb.h index 7a70854e..dbf69c90 100644 --- a/src/ipa/ipu3/algorithms/awb.h +++ b/src/ipa/ipu3/algorithms/awb.h @@ -2,7 +2,7 @@ /* * Copyright (C) 2021, Ideas On Board * - * awb.h - IPU3 AWB control algorithm + * IPU3 AWB control algorithm */ #pragma once @@ -13,6 +13,8 @@ #include <libcamera/geometry.h> +#include "libcamera/internal/vector.h" + #include "algorithm.h" namespace libcamera { @@ -48,20 +50,6 @@ public: ControlList &metadata) override; private: - /* \todo Make these structs available to all the ISPs ? */ - struct RGB { - RGB(double _R = 0, double _G = 0, double _B = 0) - : R(_R), G(_G), B(_B) - { - } - double R, G, B; - RGB &operator+=(RGB const &other) - { - R += other.R, G += other.G, B += other.B; - return *this; - } - }; - struct AwbStatus { double temperatureK; double redGain; @@ -75,11 +63,10 @@ private: void generateAwbStats(const ipu3_uapi_stats_3a *stats); void clearAwbStats(); void awbGreyWorld(); - uint32_t estimateCCT(double red, double green, double blue); static constexpr uint16_t threshold(float value); static constexpr uint16_t gainValue(double gain); - std::vector<RGB> zones_; + std::vector<RGB<double>> zones_; Accumulator awbStats_[kAwbStatsSizeX * kAwbStatsSizeY]; AwbStatus asyncResults_; diff --git a/src/ipa/ipu3/algorithms/blc.cpp b/src/ipa/ipu3/algorithms/blc.cpp index e838072a..35748fb2 100644 --- a/src/ipa/ipu3/algorithms/blc.cpp +++ b/src/ipa/ipu3/algorithms/blc.cpp @@ -2,13 +2,11 @@ /* * Copyright (C) 2021, Google inc. * - * blc.cpp - IPU3 Black Level Correction control + * IPU3 Black Level Correction control */ #include "blc.h" -#include <string.h> - /** * \file blc.h * \brief IPU3 Black Level Correction control @@ -57,8 +55,8 @@ void BlackLevelCorrection::prepare([[maybe_unused]] IPAContext &context, * tuning processes. This is a first rough approximation. */ params->obgrid_param.gr = 64; - params->obgrid_param.r = 64; - params->obgrid_param.b = 64; + params->obgrid_param.r = 64; + params->obgrid_param.b = 64; params->obgrid_param.gb = 64; /* Enable the custom black level correction processing */ diff --git a/src/ipa/ipu3/algorithms/blc.h b/src/ipa/ipu3/algorithms/blc.h index 292bf67b..62748045 100644 --- a/src/ipa/ipu3/algorithms/blc.h +++ b/src/ipa/ipu3/algorithms/blc.h @@ -2,7 +2,7 @@ /* * Copyright (C) 2021, Google inc. * - * black_correction.h - IPU3 Black Level Correction control + * IPU3 Black Level Correction control */ #pragma once diff --git a/src/ipa/ipu3/algorithms/tone_mapping.cpp b/src/ipa/ipu3/algorithms/tone_mapping.cpp index a169894c..160338c1 100644 --- a/src/ipa/ipu3/algorithms/tone_mapping.cpp +++ b/src/ipa/ipu3/algorithms/tone_mapping.cpp @@ -2,7 +2,7 @@ /* * Copyright (C) 2021, Google inc. * - * tone_mapping.cpp - IPU3 ToneMapping and Gamma control + * IPU3 ToneMapping and Gamma control */ #include "tone_mapping.h" diff --git a/src/ipa/ipu3/algorithms/tone_mapping.h b/src/ipa/ipu3/algorithms/tone_mapping.h index 5ae35da5..b2b38010 100644 --- a/src/ipa/ipu3/algorithms/tone_mapping.h +++ b/src/ipa/ipu3/algorithms/tone_mapping.h @@ -2,7 +2,7 @@ /* * Copyright (C) 2021, Google inc. * - * tone_mapping.h - IPU3 ToneMapping and Gamma control + * IPU3 ToneMapping and Gamma control */ #pragma once diff --git a/src/ipa/ipu3/data/meson.build b/src/ipa/ipu3/data/meson.build index 1f50b630..0f7cd5c6 100644 --- a/src/ipa/ipu3/data/meson.build +++ b/src/ipa/ipu3/data/meson.build @@ -5,4 +5,5 @@ conf_files = files([ ]) install_data(conf_files, - install_dir : ipa_data_dir / 'ipu3') + install_dir : ipa_data_dir / 'ipu3', + install_tag : 'runtime') diff --git a/src/ipa/ipu3/ipa_context.cpp b/src/ipa/ipu3/ipa_context.cpp index 959f314f..3b22f791 100644 --- a/src/ipa/ipu3/ipa_context.cpp +++ b/src/ipa/ipu3/ipa_context.cpp @@ -2,7 +2,7 @@ /* * Copyright (C) 2021, Google Inc. * - * ipa_context.cpp - IPU3 IPA Context + * IPU3 IPA Context */ #include "ipa_context.h" @@ -39,6 +39,10 @@ namespace libcamera::ipa::ipu3 { * \struct IPAContext * \brief Global IPA context data shared between all algorithms * + * \fn IPAContext::IPAContext + * \brief Initialize the instance with the given number of frame contexts + * \param[in] frameContextSize Size of the frame context ring buffer + * * \var IPAContext::configuration * \brief The IPA session configuration, immutable during the session * @@ -47,6 +51,9 @@ namespace libcamera::ipa::ipu3 { * * \var IPAContext::activeState * \brief The current state of IPA algorithms + * + * \var IPAContext::ctrlMap + * \brief A ControlInfoMap::Map of controls populated by the algorithms */ /** @@ -89,11 +96,11 @@ namespace libcamera::ipa::ipu3 { * \var IPASessionConfiguration::agc * \brief AGC parameters configuration of the IPA * - * \var IPASessionConfiguration::agc.minShutterSpeed - * \brief Minimum shutter speed supported with the configured sensor + * \var IPASessionConfiguration::agc.minExposureTime + * \brief Minimum exposure time supported with the configured sensor * - * \var IPASessionConfiguration::agc.maxShutterSpeed - * \brief Maximum shutter speed supported with the configured sensor + * \var IPASessionConfiguration::agc.maxExposureTime + * \brief Maximum exposure time supported with the configured sensor * * \var IPASessionConfiguration::agc.minAnalogueGain * \brief Minimum analogue gain supported with the configured sensor diff --git a/src/ipa/ipu3/ipa_context.h b/src/ipa/ipu3/ipa_context.h index e9a3863b..97fcf06c 100644 --- a/src/ipa/ipu3/ipa_context.h +++ b/src/ipa/ipu3/ipa_context.h @@ -2,7 +2,7 @@ /* * Copyright (C) 2021, Google Inc. * - * ipa_context.h - IPU3 IPA Context + * IPU3 IPA Context * */ @@ -12,6 +12,7 @@ #include <libcamera/base/utils.h> +#include <libcamera/controls.h> #include <libcamera/geometry.h> #include <libipa/fc_queue.h> @@ -32,8 +33,8 @@ struct IPASessionConfiguration { } af; struct { - utils::Duration minShutterSpeed; - utils::Duration maxShutterSpeed; + utils::Duration minExposureTime; + utils::Duration maxExposureTime; double minAnalogueGain; double maxAnalogueGain; } agc; @@ -55,6 +56,8 @@ struct IPAActiveState { struct { uint32_t exposure; double gain; + uint32_t constraintMode; + uint32_t exposureMode; } agc; struct { @@ -81,10 +84,17 @@ struct IPAFrameContext : public FrameContext { }; struct IPAContext { + IPAContext(unsigned int frameContextSize) + : frameContexts(frameContextSize) + { + } + IPASessionConfiguration configuration; IPAActiveState activeState; FCQueue<IPAFrameContext> frameContexts; + + ControlInfoMap::Map ctrlMap; }; } /* namespace ipa::ipu3 */ diff --git a/src/ipa/ipu3/ipu3-ipa-design-guide.rst b/src/ipa/ipu3/ipu3-ipa-design-guide.rst index 72506397..85d735c6 100644 --- a/src/ipa/ipu3/ipu3-ipa-design-guide.rst +++ b/src/ipa/ipu3/ipu3-ipa-design-guide.rst @@ -27,8 +27,8 @@ from applications, and managing events from the pipeline handler. └─┬───┬───┬──────┬────┬────┬────┬─┴────▼─┬──┘ 1: init() │ │ │ │ ▲ │ ▲ │ ▲ │ ▲ │ 2: configure() │1 │2 │3 │4│ │4│ │4│ │4│ │5 3: mapBuffers(), start() - │ │ │ │ │ │ │ │ │ │ │ │ 4: (▼) queueRequest(), fillParamsBuffer(), processStatsBuffer() - ▼ ▼ ▼ ▼ │ ▼ │ ▼ │ ▼ │ ▼ (▲) setSensorControls, paramsBufferReady, metadataReady Signals + │ │ │ │ │ │ │ │ │ │ │ │ 4: (▼) queueRequest(), computeParams(), processStats() + ▼ ▼ ▼ ▼ │ ▼ │ ▼ │ ▼ │ ▼ (▲) setSensorControls, paramsComputed, metadataReady Signals ┌──────────────────┴────┴────┴────┴─────────┐ 5: stop(), unmapBuffers() │ IPU3 IPA │ │ ┌───────────────────────┐ │ @@ -104,8 +104,8 @@ to operate when running: - configure() - queueRequest() -- fillParamsBuffer() -- processStatsBuffer() +- computeParams() +- processStats() The configuration phase allows the pipeline-handler to inform the IPA of the current stream configurations, which is then passed into each @@ -119,7 +119,7 @@ When configured, the IPA is notified by the pipeline handler of the Camera ``start()`` event, after which incoming requests will be queued for processing, requiring a parameter buffer (``ipu3_uapi_params``) to be populated for the ImgU. This is given to the IPA through -``fillParamsBuffer()``, and then passed directly to each algorithm +``computeParams()``, and then passed directly to each algorithm through the ``prepare()`` call allowing the ISP configuration to be updated for the needs of each component that the algorithm is responsible for. @@ -129,7 +129,7 @@ structure that it modifies, and it should take care to ensure that any structure set by a use flag is fully initialised to suitable values. The parameter buffer is returned to the pipeline handler through the -``paramsBufferReady`` signal, and from there queued to the ImgU along +``paramsComputed`` signal, and from there queued to the ImgU along with a raw frame captured with the CIO2. Post-frame completion @@ -138,7 +138,7 @@ Post-frame completion When the capture of an image is completed, and successfully processed through the ImgU, the generated statistics buffer (``ipu3_uapi_stats_3a``) is given to the IPA through -``processStatsBuffer()``. This provides the IPA with an opportunity to +``processStats()``. This provides the IPA with an opportunity to examine the results of the ISP and run the calculations required by each algorithm on the new data. The algorithms may require context from the operations of other algorithms, for example, the AWB might choose to use diff --git a/src/ipa/ipu3/ipu3.cpp b/src/ipa/ipu3/ipu3.cpp index 08ee6eb3..1cae08bf 100644 --- a/src/ipa/ipu3/ipu3.cpp +++ b/src/ipa/ipu3/ipu3.cpp @@ -2,7 +2,7 @@ /* * Copyright (C) 2020, Google Inc. * - * ipu3.cpp - IPU3 Image Processing Algorithms + * IPU3 Image Processing Algorithms */ #include <algorithm> @@ -23,24 +23,22 @@ #include <libcamera/base/utils.h> #include <libcamera/control_ids.h> +#include <libcamera/controls.h> #include <libcamera/framebuffer.h> +#include <libcamera/geometry.h> +#include <libcamera/request.h> + #include <libcamera/ipa/ipa_interface.h> #include <libcamera/ipa/ipa_module_info.h> #include <libcamera/ipa/ipu3_ipa_interface.h> -#include <libcamera/request.h> #include "libcamera/internal/mapped_framebuffer.h" #include "libcamera/internal/yaml_parser.h" -#include "algorithms/af.h" -#include "algorithms/agc.h" -#include "algorithms/algorithm.h" -#include "algorithms/awb.h" -#include "algorithms/blc.h" -#include "algorithms/tone_mapping.h" #include "libipa/camera_sensor_helper.h" #include "ipa_context.h" +#include "module.h" /* Minimum grid width, expressed as a number of cells */ static constexpr uint32_t kMinGridWidth = 16; @@ -89,14 +87,14 @@ namespace ipa::ipu3 { * parameter buffer, and adapting the settings of the sensor attached to the * IPU3 CIO2 through sensor-specific V4L2 controls. * - * In fillParamsBuffer(), we populate the ImgU parameter buffer with + * In computeParams(), we populate the ImgU parameter buffer with * settings to configure the device in preparation for handling the frame * queued in the Request. * * When the frame has completed processing, the ImgU will generate a statistics - * buffer which is given to the IPA with processStatsBuffer(). In this we run the + * buffer which is given to the IPA with processStats(). In this we run the * algorithms to parse the statistics and cache any results for the next - * fillParamsBuffer() call. + * computeParams() call. * * The individual algorithms are split into modular components that are called * iteratively to allow them to process statistics from the ImgU in the order @@ -114,7 +112,7 @@ namespace ipa::ipu3 { * blue gains to apply to generate a neutral grey frame overall. * * AGC is handled by calculating a histogram of the green channel to estimate an - * analogue gain and shutter time which will provide a well exposed frame. A + * analogue gain and exposure time which will provide a well exposed frame. A * low-pass IIR filter is used to smooth the changes to the sensor to reduce * perceivable steps. * @@ -157,10 +155,10 @@ public: void unmapBuffers(const std::vector<unsigned int> &ids) override; void queueRequest(const uint32_t frame, const ControlList &controls) override; - void fillParamsBuffer(const uint32_t frame, const uint32_t bufferId) override; - void processStatsBuffer(const uint32_t frame, const int64_t frameTimestamp, - const uint32_t bufferId, - const ControlList &sensorControls) override; + void computeParams(const uint32_t frame, const uint32_t bufferId) override; + void processStats(const uint32_t frame, const int64_t frameTimestamp, + const uint32_t bufferId, + const ControlList &sensorControls) override; protected: std::string logPrefix() const override; @@ -189,7 +187,7 @@ private: }; IPAIPU3::IPAIPU3() - : context_({ {}, {}, { kMaxFrameContexts } }) + : context_(kMaxFrameContexts) { } @@ -217,13 +215,13 @@ void IPAIPU3::updateSessionConfiguration(const ControlInfoMap &sensorControls) /* * When the AGC computes the new exposure values for a frame, it needs - * to know the limits for shutter speed and analogue gain. + * to know the limits for exposure time and analogue gain. * As it depends on the sensor, update it with the controls. * - * \todo take VBLANK into account for maximum shutter speed + * \todo take VBLANK into account for maximum exposure time */ - context_.configuration.agc.minShutterSpeed = minExposure * context_.configuration.sensor.lineDuration; - context_.configuration.agc.maxShutterSpeed = maxExposure * context_.configuration.sensor.lineDuration; + context_.configuration.agc.minExposureTime = minExposure * context_.configuration.sensor.lineDuration; + context_.configuration.agc.maxExposureTime = maxExposure * context_.configuration.sensor.lineDuration; context_.configuration.agc.minAnalogueGain = camHelper_->gain(minGain); context_.configuration.agc.maxAnalogueGain = camHelper_->gain(maxGain); } @@ -287,6 +285,7 @@ void IPAIPU3::updateControls(const IPACameraSensorInfo &sensorInfo, frameDurations[1], frameDurations[2]); + controls.merge(context_.ctrlMap); *ipaControls = ControlInfoMap(std::move(controls), controls::controls); } @@ -312,8 +311,8 @@ int IPAIPU3::init(const IPASettings &settings, /* Clean context */ context_.configuration = {}; - context_.configuration.sensor.lineDuration = sensorInfo.minLineLength - * 1.0s / sensorInfo.pixelRate; + context_.configuration.sensor.lineDuration = + sensorInfo.minLineLength * 1.0s / sensorInfo.pixelRate; /* Load the tuning data file. */ File file(settings.configurationFile); @@ -476,8 +475,8 @@ int IPAIPU3::configure(const IPAConfigInfo &configInfo, context_.frameContexts.clear(); /* Initialise the sensor configuration. */ - context_.configuration.sensor.lineDuration = sensorInfo_.minLineLength - * 1.0s / sensorInfo_.pixelRate; + context_.configuration.sensor.lineDuration = + sensorInfo_.minLineLength * 1.0s / sensorInfo_.pixelRate; context_.configuration.sensor.size = sensorInfo_.outputSize; /* @@ -539,7 +538,7 @@ void IPAIPU3::unmapBuffers(const std::vector<unsigned int> &ids) * Algorithms are expected to fill the IPU3 parameter buffer for the next * frame given their most recent processing of the ImgU statistics. */ -void IPAIPU3::fillParamsBuffer(const uint32_t frame, const uint32_t bufferId) +void IPAIPU3::computeParams(const uint32_t frame, const uint32_t bufferId) { auto it = buffers_.find(bufferId); if (it == buffers_.end()) { @@ -567,7 +566,7 @@ void IPAIPU3::fillParamsBuffer(const uint32_t frame, const uint32_t bufferId) for (auto const &algo : algorithms()) algo->prepare(context_, frame, frameContext, params); - paramsBufferReady.emit(frame); + paramsComputed.emit(frame); } /** @@ -581,9 +580,9 @@ void IPAIPU3::fillParamsBuffer(const uint32_t frame, const uint32_t bufferId) * statistics are passed to each algorithm module to run their calculations and * update their state accordingly. */ -void IPAIPU3::processStatsBuffer(const uint32_t frame, - [[maybe_unused]] const int64_t frameTimestamp, - const uint32_t bufferId, const ControlList &sensorControls) +void IPAIPU3::processStats(const uint32_t frame, + [[maybe_unused]] const int64_t frameTimestamp, + const uint32_t bufferId, const ControlList &sensorControls) { auto it = buffers_.find(bufferId); if (it == buffers_.end()) { @@ -672,7 +671,7 @@ extern "C" { const struct IPAModuleInfo ipaModuleInfo = { IPA_MODULE_API_VERSION, 1, - "PipelineHandlerIPU3", + "ipu3", "ipu3", }; diff --git a/src/ipa/ipu3/meson.build b/src/ipa/ipu3/meson.build index 66c39843..34de6213 100644 --- a/src/ipa/ipu3/meson.build +++ b/src/ipa/ipu3/meson.build @@ -12,12 +12,10 @@ ipu3_ipa_sources = files([ ipu3_ipa_sources += ipu3_ipa_algorithms -mod = shared_module(ipa_name, - [ipu3_ipa_sources, libcamera_generated_ipa_headers], +mod = shared_module(ipa_name, ipu3_ipa_sources, name_prefix : '', - include_directories : [ipa_includes, libipa_includes], - dependencies : libcamera_private, - link_with : libipa, + include_directories : [ipa_includes], + dependencies : [libcamera_private, libipa_dep], install : true, install_dir : ipa_install_dir) diff --git a/src/ipa/ipu3/module.h b/src/ipa/ipu3/module.h index d94fc459..60f65cc4 100644 --- a/src/ipa/ipu3/module.h +++ b/src/ipa/ipu3/module.h @@ -2,7 +2,7 @@ /* * Copyright (C) 2022, Ideas On Board * - * module.h - IPU3 IPA Module + * IPU3 IPA Module */ #pragma once diff --git a/src/ipa/libipa/agc_mean_luminance.cpp b/src/ipa/libipa/agc_mean_luminance.cpp new file mode 100644 index 00000000..d37a9b66 --- /dev/null +++ b/src/ipa/libipa/agc_mean_luminance.cpp @@ -0,0 +1,589 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +/* + * Copyright (C) 2024 Ideas on Board Oy + * + * Base class for mean luminance AGC algorithms + */ + +#include "agc_mean_luminance.h" + +#include <cmath> + +#include <libcamera/base/log.h> +#include <libcamera/control_ids.h> + +#include "exposure_mode_helper.h" + +using namespace libcamera::controls; + +/** + * \file agc_mean_luminance.h + * \brief Base class implementing mean luminance AEGC + */ + +namespace libcamera { + +using namespace std::literals::chrono_literals; + +LOG_DEFINE_CATEGORY(AgcMeanLuminance) + +namespace ipa { + +/* + * Number of frames for which to run the algorithm at full speed, before slowing + * down to prevent large and jarring changes in exposure from frame to frame. + */ +static constexpr uint32_t kNumStartupFrames = 10; + +/* + * Default relative luminance target + * + * This value should be chosen so that when the camera points at a grey target, + * the resulting image brightness looks "right". Custom values can be passed + * as the relativeLuminanceTarget value in sensor tuning files. + */ +static constexpr double kDefaultRelativeLuminanceTarget = 0.16; + +/** + * \struct AgcMeanLuminance::AgcConstraint + * \brief The boundaries and target for an AeConstraintMode constraint + * + * This structure describes an AeConstraintMode constraint for the purposes of + * this algorithm. These constraints are expressed as a pair of quantile + * boundaries for a histogram, along with a luminance target and a bounds-type. + * The algorithm uses the constraints by ensuring that the defined portion of a + * luminance histogram (I.E. lying between the two quantiles) is above or below + * the given luminance value. + */ + +/** + * \enum AgcMeanLuminance::AgcConstraint::Bound + * \brief Specify whether the constraint defines a lower or upper bound + * \var AgcMeanLuminance::AgcConstraint::Lower + * \brief The constraint defines a lower bound + * \var AgcMeanLuminance::AgcConstraint::Upper + * \brief The constraint defines an upper bound + */ + +/** + * \var AgcMeanLuminance::AgcConstraint::bound + * \brief The type of constraint bound + */ + +/** + * \var AgcMeanLuminance::AgcConstraint::qLo + * \brief The lower quantile to use for the constraint + */ + +/** + * \var AgcMeanLuminance::AgcConstraint::qHi + * \brief The upper quantile to use for the constraint + */ + +/** + * \var AgcMeanLuminance::AgcConstraint::yTarget + * \brief The luminance target for the constraint + */ + +/** + * \class AgcMeanLuminance + * \brief A mean-based auto-exposure algorithm + * + * This algorithm calculates an exposure time, analogue and digital gain such + * that the normalised mean luminance value of an image is driven towards a + * target, which itself is discovered from tuning data. The algorithm is a + * two-stage process. + * + * In the first stage, an initial gain value is derived by iteratively comparing + * the gain-adjusted mean luminance across the entire image against a target, + * and selecting a value which pushes it as closely as possible towards the + * target. + * + * In the second stage we calculate the gain required to drive the average of a + * section of a histogram to a target value, where the target and the boundaries + * of the section of the histogram used in the calculation are taken from the + * values defined for the currently configured AeConstraintMode within the + * tuning data. This class provides a helper function to parse those tuning data + * to discover the constraints, and so requires a specific format for those + * data which is described in \ref parseTuningData(). The gain from the first + * stage is then clamped to the gain from this stage. + * + * The final gain is used to adjust the effective exposure value of the image, + * and that new exposure value is divided into exposure time, analogue gain and + * digital gain according to the selected AeExposureMode. This class uses the + * \ref ExposureModeHelper class to assist in that division, and expects the + * data needed to initialise that class to be present in tuning data in a + * format described in \ref parseTuningData(). + * + * In order to be able to use this algorithm an IPA module needs to be able to + * do the following: + * + * 1. Provide a luminance estimation across an entire image. + * 2. Provide a luminance Histogram for the image to use in calculating + * constraint compliance. The precision of the Histogram that is available + * will determine the supportable precision of the constraints. + * + * IPA modules that want to use this class to implement their AEGC algorithm + * should derive it and provide an overriding estimateLuminance() function for + * this class to use. They must call parseTuningData() in init(), and must also + * call setLimits() and resetFrameCounter() in configure(). They may then use + * calculateNewEv() in process(). If the limits passed to setLimits() change for + * any reason (for example, in response to a FrameDurationLimit control being + * passed in queueRequest()) then setLimits() must be called again with the new + * values. + */ + +AgcMeanLuminance::AgcMeanLuminance() + : frameCount_(0), filteredExposure_(0s), relativeLuminanceTarget_(0) +{ +} + +AgcMeanLuminance::~AgcMeanLuminance() = default; + +void AgcMeanLuminance::parseRelativeLuminanceTarget(const YamlObject &tuningData) +{ + relativeLuminanceTarget_ = + tuningData["relativeLuminanceTarget"].get<double>(kDefaultRelativeLuminanceTarget); +} + +void AgcMeanLuminance::parseConstraint(const YamlObject &modeDict, int32_t id) +{ + for (const auto &[boundName, content] : modeDict.asDict()) { + if (boundName != "upper" && boundName != "lower") { + LOG(AgcMeanLuminance, Warning) + << "Ignoring unknown constraint bound '" << boundName << "'"; + continue; + } + + unsigned int idx = static_cast<unsigned int>(boundName == "upper"); + AgcConstraint::Bound bound = static_cast<AgcConstraint::Bound>(idx); + double qLo = content["qLo"].get<double>().value_or(0.98); + double qHi = content["qHi"].get<double>().value_or(1.0); + double yTarget = + content["yTarget"].getList<double>().value_or(std::vector<double>{ 0.5 }).at(0); + + AgcConstraint constraint = { bound, qLo, qHi, yTarget }; + + if (!constraintModes_.count(id)) + constraintModes_[id] = {}; + + if (idx) + constraintModes_[id].push_back(constraint); + else + constraintModes_[id].insert(constraintModes_[id].begin(), constraint); + } +} + +int AgcMeanLuminance::parseConstraintModes(const YamlObject &tuningData) +{ + std::vector<ControlValue> availableConstraintModes; + + const YamlObject &yamlConstraintModes = tuningData[controls::AeConstraintMode.name()]; + if (yamlConstraintModes.isDictionary()) { + for (const auto &[modeName, modeDict] : yamlConstraintModes.asDict()) { + if (AeConstraintModeNameValueMap.find(modeName) == + AeConstraintModeNameValueMap.end()) { + LOG(AgcMeanLuminance, Warning) + << "Skipping unknown constraint mode '" << modeName << "'"; + continue; + } + + if (!modeDict.isDictionary()) { + LOG(AgcMeanLuminance, Error) + << "Invalid constraint mode '" << modeName << "'"; + return -EINVAL; + } + + parseConstraint(modeDict, + AeConstraintModeNameValueMap.at(modeName)); + availableConstraintModes.push_back( + AeConstraintModeNameValueMap.at(modeName)); + } + } + + /* + * If the tuning data file contains no constraints then we use the + * default constraint that the IPU3/RkISP1 Agc algorithms were adhering + * to anyway before centralisation; this constraint forces the top 2% of + * the histogram to be at least 0.5. + */ + if (constraintModes_.empty()) { + AgcConstraint constraint = { + AgcConstraint::Bound::Lower, + 0.98, + 1.0, + 0.5 + }; + + constraintModes_[controls::ConstraintNormal].insert( + constraintModes_[controls::ConstraintNormal].begin(), + constraint); + availableConstraintModes.push_back(controls::ConstraintNormal); + } + + controls_[&controls::AeConstraintMode] = ControlInfo(availableConstraintModes); + + return 0; +} + +int AgcMeanLuminance::parseExposureModes(const YamlObject &tuningData) +{ + std::vector<ControlValue> availableExposureModes; + + const YamlObject &yamlExposureModes = tuningData[controls::AeExposureMode.name()]; + if (yamlExposureModes.isDictionary()) { + for (const auto &[modeName, modeValues] : yamlExposureModes.asDict()) { + if (AeExposureModeNameValueMap.find(modeName) == + AeExposureModeNameValueMap.end()) { + LOG(AgcMeanLuminance, Warning) + << "Skipping unknown exposure mode '" << modeName << "'"; + continue; + } + + if (!modeValues.isDictionary()) { + LOG(AgcMeanLuminance, Error) + << "Invalid exposure mode '" << modeName << "'"; + return -EINVAL; + } + + std::vector<uint32_t> exposureTimes = + modeValues["exposureTime"].getList<uint32_t>().value_or(std::vector<uint32_t>{}); + std::vector<double> gains = + modeValues["gain"].getList<double>().value_or(std::vector<double>{}); + + if (exposureTimes.size() != gains.size()) { + LOG(AgcMeanLuminance, Error) + << "Exposure time and gain array sizes unequal"; + return -EINVAL; + } + + if (exposureTimes.empty()) { + LOG(AgcMeanLuminance, Error) + << "Exposure time and gain arrays are empty"; + return -EINVAL; + } + + std::vector<std::pair<utils::Duration, double>> stages; + for (unsigned int i = 0; i < exposureTimes.size(); i++) { + stages.push_back({ + std::chrono::microseconds(exposureTimes[i]), + gains[i] + }); + } + + std::shared_ptr<ExposureModeHelper> helper = + std::make_shared<ExposureModeHelper>(stages); + + exposureModeHelpers_[AeExposureModeNameValueMap.at(modeName)] = helper; + availableExposureModes.push_back(AeExposureModeNameValueMap.at(modeName)); + } + } + + /* + * If we don't have any exposure modes in the tuning data we create an + * ExposureModeHelper using an empty vector of stages. This will result + * in the ExposureModeHelper simply driving the exposure time as high as + * possible before touching gain. + */ + if (availableExposureModes.empty()) { + int32_t exposureModeId = controls::ExposureNormal; + std::vector<std::pair<utils::Duration, double>> stages = { }; + + std::shared_ptr<ExposureModeHelper> helper = + std::make_shared<ExposureModeHelper>(stages); + + exposureModeHelpers_[exposureModeId] = helper; + availableExposureModes.push_back(exposureModeId); + } + + controls_[&controls::AeExposureMode] = ControlInfo(availableExposureModes); + + return 0; +} + +/** + * \brief Parse tuning data for AeConstraintMode and AeExposureMode controls + * \param[in] tuningData the YamlObject representing the tuning data + * + * This function parses tuning data to build the list of allowed values for the + * AeConstraintMode and AeExposureMode controls. Those tuning data must provide + * the data in a specific format; the Agc algorithm's tuning data should contain + * a dictionary called AeConstraintMode containing per-mode setting dictionaries + * with the key being a value from \ref controls::AeConstraintModeNameValueMap. + * Each mode dict may contain either a "lower" or "upper" key or both, for + * example: + * + * \code{.unparsed} + * algorithms: + * - Agc: + * AeConstraintMode: + * ConstraintNormal: + * lower: + * qLo: 0.98 + * qHi: 1.0 + * yTarget: 0.5 + * ConstraintHighlight: + * lower: + * qLo: 0.98 + * qHi: 1.0 + * yTarget: 0.5 + * upper: + * qLo: 0.98 + * qHi: 1.0 + * yTarget: 0.8 + * + * \endcode + * + * For the AeExposureMode control the data should contain a dictionary called + * AeExposureMode containing per-mode setting dictionaries with the key being a + * value from \ref controls::AeExposureModeNameValueMap. Each mode dict should + * contain an array of exposure times with the key "exposureTime" and an array + * of gain values with the key "gain", in this format: + * + * \code{.unparsed} + * algorithms: + * - Agc: + * AeExposureMode: + * ExposureNormal: + * exposureTime: [ 100, 10000, 30000, 60000, 120000 ] + * gain: [ 2.0, 4.0, 6.0, 8.0, 10.0 ] + * ExposureShort: + * exposureTime: [ 100, 10000, 30000, 60000, 120000 ] + * gain: [ 2.0, 4.0, 6.0, 8.0, 10.0 ] + * + * \endcode + * + * \return 0 on success or a negative error code + */ +int AgcMeanLuminance::parseTuningData(const YamlObject &tuningData) +{ + int ret; + + parseRelativeLuminanceTarget(tuningData); + + ret = parseConstraintModes(tuningData); + if (ret) + return ret; + + return parseExposureModes(tuningData); +} + +/** + * \brief Set the ExposureModeHelper limits for this class + * \param[in] minExposureTime Minimum exposure time to allow + * \param[in] maxExposureTime Maximum ewposure time to allow + * \param[in] minGain Minimum gain to allow + * \param[in] maxGain Maximum gain to allow + * + * This function calls \ref ExposureModeHelper::setLimits() for each + * ExposureModeHelper that has been created for this class. + */ +void AgcMeanLuminance::setLimits(utils::Duration minExposureTime, + utils::Duration maxExposureTime, + double minGain, double maxGain) +{ + for (auto &[id, helper] : exposureModeHelpers_) + helper->setLimits(minExposureTime, maxExposureTime, minGain, maxGain); +} + +/** + * \fn AgcMeanLuminance::constraintModes() + * \brief Get the constraint modes that have been parsed from tuning data + */ + +/** + * \fn AgcMeanLuminance::exposureModeHelpers() + * \brief Get the ExposureModeHelpers that have been parsed from tuning data + */ + +/** + * \fn AgcMeanLuminance::controls() + * \brief Get the controls that have been generated after parsing tuning data + */ + +/** + * \fn AgcMeanLuminance::estimateLuminance(const double gain) + * \brief Estimate the luminance of an image, adjusted by a given gain + * \param[in] gain The gain with which to adjust the luminance estimate + * + * This function estimates the average relative luminance of the frame that + * would be output by the sensor if an additional \a gain was applied. It is a + * pure virtual function because estimation of luminance is a hardware-specific + * operation, which depends wholly on the format of the stats that are delivered + * to libcamera from the ISP. Derived classes must override this function with + * one that calculates the normalised mean luminance value across the entire + * image. + * + * \return The normalised relative luminance of the image + */ + +/** + * \brief Estimate the initial gain needed to achieve a relative luminance + * target + * \return The calculated initial gain + */ +double AgcMeanLuminance::estimateInitialGain() const +{ + double yTarget = relativeLuminanceTarget_; + double yGain = 1.0; + + /* + * To account for non-linearity caused by saturation, the value needs to + * be estimated in an iterative process, as multiplying by a gain will + * not increase the relative luminance by the same factor if some image + * regions are saturated. + */ + for (unsigned int i = 0; i < 8; i++) { + double yValue = estimateLuminance(yGain); + double extra_gain = std::min(10.0, yTarget / (yValue + .001)); + + yGain *= extra_gain; + LOG(AgcMeanLuminance, Debug) << "Y value: " << yValue + << ", Y target: " << yTarget + << ", gives gain " << yGain; + + if (utils::abs_diff(extra_gain, 1.0) < 0.01) + break; + } + + return yGain; +} + +/** + * \brief Clamp gain within the bounds of a defined constraint + * \param[in] constraintModeIndex The index of the constraint to adhere to + * \param[in] hist A histogram over which to calculate inter-quantile means + * \param[in] gain The gain to clamp + * + * \return The gain clamped within the constraint bounds + */ +double AgcMeanLuminance::constraintClampGain(uint32_t constraintModeIndex, + const Histogram &hist, + double gain) +{ + std::vector<AgcConstraint> &constraints = constraintModes_[constraintModeIndex]; + for (const AgcConstraint &constraint : constraints) { + double newGain = constraint.yTarget * hist.bins() / + hist.interQuantileMean(constraint.qLo, constraint.qHi); + + if (constraint.bound == AgcConstraint::Bound::Lower && + newGain > gain) + gain = newGain; + + if (constraint.bound == AgcConstraint::Bound::Upper && + newGain < gain) + gain = newGain; + } + + return gain; +} + +/** + * \brief Apply a filter on the exposure value to limit the speed of changes + * \param[in] exposureValue The target exposure from the AGC algorithm + * + * The speed of the filter is adaptive, and will produce the target quicker + * during startup, or when the target exposure is within 20% of the most recent + * filter output. + * + * \return The filtered exposure + */ +utils::Duration AgcMeanLuminance::filterExposure(utils::Duration exposureValue) +{ + double speed = 0.2; + + /* Adapt instantly if we are in startup phase. */ + if (frameCount_ < kNumStartupFrames) + speed = 1.0; + + /* + * If we are close to the desired result, go faster to avoid making + * multiple micro-adjustments. + * \todo Make this customisable? + */ + if (filteredExposure_ < 1.2 * exposureValue && + filteredExposure_ > 0.8 * exposureValue) + speed = sqrt(speed); + + filteredExposure_ = speed * exposureValue + + filteredExposure_ * (1.0 - speed); + + return filteredExposure_; +} + +/** + * \brief Calculate the new exposure value and splut it between exposure time + * and gain + * \param[in] constraintModeIndex The index of the current constraint mode + * \param[in] exposureModeIndex The index of the current exposure mode + * \param[in] yHist A Histogram from the ISP statistics to use in constraining + * the calculated gain + * \param[in] effectiveExposureValue The EV applied to the frame from which the + * statistics in use derive + * + * Calculate a new exposure value to try to obtain the target. The calculated + * exposure value is filtered to prevent rapid changes from frame to frame, and + * divided into exposure time, analogue and digital gain. + * + * \return Tuple of exposure time, analogue gain, and digital gain + */ +std::tuple<utils::Duration, double, double> +AgcMeanLuminance::calculateNewEv(uint32_t constraintModeIndex, + uint32_t exposureModeIndex, + const Histogram &yHist, + utils::Duration effectiveExposureValue) +{ + /* + * The pipeline handler should validate that we have received an allowed + * value for AeExposureMode. + */ + std::shared_ptr<ExposureModeHelper> exposureModeHelper = + exposureModeHelpers_.at(exposureModeIndex); + + if (effectiveExposureValue == 0s) { + LOG(AgcMeanLuminance, Error) + << "Effective exposure value is 0. This is a bug in AGC " + "and must be fixed for proper operation."; + /* + * Return an arbitrary exposure time > 0 to ensure regulation + * doesn't get stuck with 0 in case the sensor driver allows a + * min exposure of 0. + */ + return exposureModeHelper->splitExposure(10ms); + } + + double gain = estimateInitialGain(); + gain = constraintClampGain(constraintModeIndex, yHist, gain); + + /* + * We don't check whether we're already close to the target, because + * even if the effective exposure value is the same as the last frame's + * we could have switched to an exposure mode that would require a new + * pass through the splitExposure() function. + */ + + utils::Duration newExposureValue = effectiveExposureValue * gain; + + /* + * We filter the exposure value to make sure changes are not too jarring + * from frame to frame. + */ + newExposureValue = filterExposure(newExposureValue); + + frameCount_++; + return exposureModeHelper->splitExposure(newExposureValue); +} + +/** + * \fn AgcMeanLuminance::resetFrameCount() + * \brief Reset the frame counter + * + * This function resets the internal frame counter, which exists to help the + * algorithm decide whether it should respond instantly or not. The expectation + * is for derived classes to call this function before each camera start call in + * their configure() function. + */ + +} /* namespace ipa */ + +} /* namespace libcamera */ diff --git a/src/ipa/libipa/agc_mean_luminance.h b/src/ipa/libipa/agc_mean_luminance.h new file mode 100644 index 00000000..c41391cb --- /dev/null +++ b/src/ipa/libipa/agc_mean_luminance.h @@ -0,0 +1,98 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +/* + * Copyright (C) 2024 Ideas on Board Oy + * + agc_mean_luminance.h - Base class for mean luminance AGC algorithms + */ + +#pragma once + +#include <map> +#include <memory> +#include <tuple> +#include <vector> + +#include <libcamera/base/utils.h> + +#include <libcamera/controls.h> + +#include "libcamera/internal/yaml_parser.h" + +#include "exposure_mode_helper.h" +#include "histogram.h" + +namespace libcamera { + +namespace ipa { + +class AgcMeanLuminance +{ +public: + AgcMeanLuminance(); + virtual ~AgcMeanLuminance(); + + struct AgcConstraint { + enum class Bound { + Lower = 0, + Upper = 1 + }; + Bound bound; + double qLo; + double qHi; + double yTarget; + }; + + int parseTuningData(const YamlObject &tuningData); + + void setLimits(utils::Duration minExposureTime, utils::Duration maxExposureTime, + double minGain, double maxGain); + + std::map<int32_t, std::vector<AgcConstraint>> constraintModes() + { + return constraintModes_; + } + + std::map<int32_t, std::shared_ptr<ExposureModeHelper>> exposureModeHelpers() + { + return exposureModeHelpers_; + } + + ControlInfoMap::Map controls() + { + return controls_; + } + + std::tuple<utils::Duration, double, double> + calculateNewEv(uint32_t constraintModeIndex, uint32_t exposureModeIndex, + const Histogram &yHist, utils::Duration effectiveExposureValue); + + void resetFrameCount() + { + frameCount_ = 0; + } + +private: + virtual double estimateLuminance(const double gain) const = 0; + + void parseRelativeLuminanceTarget(const YamlObject &tuningData); + void parseConstraint(const YamlObject &modeDict, int32_t id); + int parseConstraintModes(const YamlObject &tuningData); + int parseExposureModes(const YamlObject &tuningData); + double estimateInitialGain() const; + double constraintClampGain(uint32_t constraintModeIndex, + const Histogram &hist, + double gain); + utils::Duration filterExposure(utils::Duration exposureValue); + + uint64_t frameCount_; + utils::Duration filteredExposure_; + double relativeLuminanceTarget_; + + std::map<int32_t, std::vector<AgcConstraint>> constraintModes_; + std::map<int32_t, std::shared_ptr<ExposureModeHelper>> exposureModeHelpers_; + ControlInfoMap::Map controls_; +}; + +} /* namespace ipa */ + +} /* namespace libcamera */ diff --git a/src/ipa/libipa/algorithm.cpp b/src/ipa/libipa/algorithm.cpp index bc1c29a6..201efdfd 100644 --- a/src/ipa/libipa/algorithm.cpp +++ b/src/ipa/libipa/algorithm.cpp @@ -2,7 +2,7 @@ /* * Copyright (C) 2021, Ideas On Board * - * algorithm.cpp - IPA control algorithm interface + * IPA control algorithm interface */ #include "algorithm.h" diff --git a/src/ipa/libipa/algorithm.h b/src/ipa/libipa/algorithm.h index 987e3e4c..9a19dbd6 100644 --- a/src/ipa/libipa/algorithm.h +++ b/src/ipa/libipa/algorithm.h @@ -2,7 +2,7 @@ /* * Copyright (C) 2021, Ideas On Board * - * algorithm.h - ISP control algorithm interface + * ISP control algorithm interface */ #pragma once diff --git a/src/ipa/libipa/awb.cpp b/src/ipa/libipa/awb.cpp new file mode 100644 index 00000000..214bac8b --- /dev/null +++ b/src/ipa/libipa/awb.cpp @@ -0,0 +1,265 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +/* + * Copyright (C) 2024 Ideas on Board Oy + * + * Generic AWB algorithms + */ + +#include "awb.h" + +#include <libcamera/base/log.h> + +#include <libcamera/control_ids.h> + +/** + * \file awb.h + * \brief Base classes for AWB algorithms + */ + +namespace libcamera { + +LOG_DEFINE_CATEGORY(Awb) + +namespace ipa { + +/** + * \class AwbResult + * \brief The result of an AWB calculation + * + * This class holds the result of an auto white balance calculation. + */ + +/** + * \var AwbResult::gains + * \brief The calculated white balance gains + */ + +/** + * \var AwbResult::colourTemperature + * \brief The calculated colour temperature in Kelvin + */ + +/** + * \class AwbStats + * \brief An abstraction class wrapping hardware-specific AWB statistics + * + * IPA modules using an AWB algorithm based on the AwbAlgorithm class need to + * implement this class to give the algorithm access to the hardware-specific + * statistics data. + */ + +/** + * \fn AwbStats::computeColourError() + * \brief Compute an error value for when the given gains would be applied + * \param[in] gains The gains to apply + * + * Compute an error value (non-greyness) assuming the given \a gains would be + * applied. To keep the actual implementations computationally inexpensive, + * the squared colour error shall be returned. + * + * If the AWB statistics provide multiple zones, the average of the individual + * squared errors shall be returned. Averaging/normalizing is necessary so that + * the numeric dimensions are the same on all hardware platforms. + * + * \return The computed error value + */ + +/** + * \fn AwbStats::rgbMeans() + * \brief Get RGB means of the statistics + * + * Fetch the RGB means from the statistics. The values of each channel are + * dimensionless and only the ratios are used for further calculations. This is + * used by the simple grey world model to calculate the gains to apply. + * + * \return The RGB means + */ + +/** + * \class AwbAlgorithm + * \brief A base class for auto white balance algorithms + * + * This class is a base class for auto white balance algorithms. It defines an + * interface for the algorithms to implement, and is used by the IPAs to + * interact with the concrete implementation. + */ + +/** + * \fn AwbAlgorithm::init() + * \brief Initialize the algorithm with the given tuning data + * \param[in] tuningData The tuning data to use for the algorithm + * + * \return 0 on success, a negative error code otherwise + */ + +/** + * \fn AwbAlgorithm::calculateAwb() + * \brief Calculate AWB data from the given statistics + * \param[in] stats The statistics to use for the calculation + * \param[in] lux The lux value of the scene + * + * Calculate an AwbResult object from the given statistics and lux value. A \a + * lux value of 0 means it is unknown or invalid and the algorithm shall ignore + * it. + * + * \return The AWB result + */ + +/** + * \fn AwbAlgorithm::gainsFromColourTemperature() + * \brief Compute white balance gains from a colour temperature + * \param[in] colourTemperature The colour temperature in Kelvin + * + * Compute the white balance gains from a \a colourTemperature. This function + * does not take any statistics into account. It is used to compute the colour + * gains when the user manually specifies a colour temperature. + * + * \return The colour gains or std::nullopt if the conversion is not possible + */ + +/** + * \fn AwbAlgorithm::controls() + * \brief Get the controls info map for this algorithm + * + * \return The controls info map + */ + +/** + * \fn AwbAlgorithm::handleControls() + * \param[in] controls The controls to handle + * \brief Handle the controls supplied in a request + */ + +/** + * \brief Parse the mode configurations from the tuning data + * \param[in] tuningData the YamlObject representing the tuning data + * \param[in] def The default value for the AwbMode control + * + * Utility function to parse the tuning data for an AwbMode entry and read all + * provided modes. It adds controls::AwbMode to AwbAlgorithm::controls_ and + * populates AwbAlgorithm::modes_. For a list of possible modes see \ref + * controls::AwbModeEnum. + * + * Each mode entry must contain a "lo" and "hi" key to specify the lower and + * upper colour temperature of that mode. For example: + * + * \code{.unparsed} + * algorithms: + * - Awb: + * AwbMode: + * AwbAuto: + * lo: 2500 + * hi: 8000 + * AwbIncandescent: + * lo: 2500 + * hi: 3000 + * ... + * \endcode + * + * If \a def is supplied but not contained in the the \a tuningData, -EINVAL is + * returned. + * + * \sa controls::AwbModeEnum + * \return Zero on success, negative error code otherwise + */ +int AwbAlgorithm::parseModeConfigs(const YamlObject &tuningData, + const ControlValue &def) +{ + std::vector<ControlValue> availableModes; + + const YamlObject &yamlModes = tuningData[controls::AwbMode.name()]; + if (!yamlModes.isDictionary()) { + LOG(Awb, Error) + << "AwbModes must be a dictionary."; + return -EINVAL; + } + + for (const auto &[modeName, modeDict] : yamlModes.asDict()) { + if (controls::AwbModeNameValueMap.find(modeName) == + controls::AwbModeNameValueMap.end()) { + LOG(Awb, Warning) + << "Skipping unknown AWB mode '" + << modeName << "'"; + continue; + } + + if (!modeDict.isDictionary()) { + LOG(Awb, Error) + << "Invalid AWB mode '" << modeName << "'"; + return -EINVAL; + } + + const auto &modeValue = static_cast<controls::AwbModeEnum>( + controls::AwbModeNameValueMap.at(modeName)); + + ModeConfig &config = modes_[modeValue]; + + auto hi = modeDict["hi"].get<double>(); + if (!hi) { + LOG(Awb, Error) << "Failed to read hi param of mode " + << modeName; + return -EINVAL; + } + config.ctHi = *hi; + + auto lo = modeDict["lo"].get<double>(); + if (!lo) { + LOG(Awb, Error) << "Failed to read low param of mode " + << modeName; + return -EINVAL; + } + config.ctLo = *lo; + + availableModes.push_back(modeValue); + } + + if (modes_.empty()) { + LOG(Awb, Error) << "No AWB modes configured"; + return -EINVAL; + } + + if (!def.isNone() && + modes_.find(def.get<controls::AwbModeEnum>()) == modes_.end()) { + const auto &names = controls::AwbMode.enumerators(); + LOG(Awb, Error) << names.at(def.get<controls::AwbModeEnum>()) + << " mode is missing in the configuration."; + return -EINVAL; + } + + controls_[&controls::AwbMode] = ControlInfo(availableModes, def); + + return 0; +} + +/** + * \class AwbAlgorithm::ModeConfig + * \brief Holds the configuration of a single AWB mode + * + * AWB modes limit the regulation of the AWB algorithm to a specific range of + * colour temperatures. + */ + +/** + * \var AwbAlgorithm::ModeConfig::ctLo + * \brief The lowest valid colour temperature of that mode + */ + +/** + * \var AwbAlgorithm::ModeConfig::ctHi + * \brief The highest valid colour temperature of that mode + */ + +/** + * \var AwbAlgorithm::controls_ + * \brief Controls info map for the controls provided by the algorithm + */ + +/** + * \var AwbAlgorithm::modes_ + * \brief Map of all configured modes + * \sa AwbAlgorithm::parseModeConfigs + */ + +} /* namespace ipa */ + +} /* namespace libcamera */ diff --git a/src/ipa/libipa/awb.h b/src/ipa/libipa/awb.h new file mode 100644 index 00000000..f4a86038 --- /dev/null +++ b/src/ipa/libipa/awb.h @@ -0,0 +1,67 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +/* + * Copyright (C) 2024 Ideas on Board Oy + * + * Generic AWB algorithms + */ + +#pragma once + +#include <map> +#include <optional> + +#include <libcamera/control_ids.h> +#include <libcamera/controls.h> + +#include "libcamera/internal/vector.h" +#include "libcamera/internal/yaml_parser.h" + +namespace libcamera { + +namespace ipa { + +struct AwbResult { + RGB<double> gains; + double colourTemperature; +}; + +struct AwbStats { + virtual double computeColourError(const RGB<double> &gains) const = 0; + virtual RGB<double> rgbMeans() const = 0; + +protected: + ~AwbStats() = default; +}; + +class AwbAlgorithm +{ +public: + virtual ~AwbAlgorithm() = default; + + virtual int init(const YamlObject &tuningData) = 0; + virtual AwbResult calculateAwb(const AwbStats &stats, unsigned int lux) = 0; + virtual std::optional<RGB<double>> gainsFromColourTemperature(double colourTemperature) = 0; + + const ControlInfoMap::Map &controls() const + { + return controls_; + } + + virtual void handleControls([[maybe_unused]] const ControlList &controls) {} + +protected: + int parseModeConfigs(const YamlObject &tuningData, + const ControlValue &def = {}); + + struct ModeConfig { + double ctHi; + double ctLo; + }; + + ControlInfoMap::Map controls_; + std::map<controls::AwbModeEnum, AwbAlgorithm::ModeConfig> modes_; +}; + +} /* namespace ipa */ + +} /* namespace libcamera */ diff --git a/src/ipa/libipa/awb_bayes.cpp b/src/ipa/libipa/awb_bayes.cpp new file mode 100644 index 00000000..d2bcbd83 --- /dev/null +++ b/src/ipa/libipa/awb_bayes.cpp @@ -0,0 +1,505 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +/* + * Copyright (C) 2019, Raspberry Pi Ltd + * Copyright (C) 2024 Ideas on Board Oy + * + * Implementation of a bayesian AWB algorithm + */ + +#include "awb_bayes.h" + +#include <algorithm> +#include <cmath> +#include <limits> +#include <map> +#include <ostream> +#include <vector> + +#include <libcamera/base/log.h> +#include <libcamera/control_ids.h> + +#include "colours.h" + +/** + * \file awb_bayes.h + * \brief Implementation of bayesian auto white balance algorithm + * + * This implementation is based on the initial implementation done by + * RaspberryPi. + * + * \todo Documentation + * + * \todo Not all the features implemented by RaspberryPi were ported over to + * this algorithm because they either rely on hardware features not generally + * available or were considered not important enough at the moment. + * + * The following parts are not implemented: + * + * - min_pixels: minimum proportion of pixels counted within AWB region for it + * to be "useful" + * - min_g: minimum G value of those pixels, to be regarded a "useful" + * - min_regions: number of AWB regions that must be "useful" in order to do the + * AWB calculation + * - deltaLimit: clamp on colour error term (so as not to penalize non-grey + * excessively) + * - bias_proportion: The biasProportion parameter adds a small proportion of + * the counted pixels to a region biased to the biasCT colour temperature. + * A typical value for biasProportion would be between 0.05 to 0.1. + * - bias_ct: CT target for the search bias + * - sensitivityR: red sensitivity ratio (set to canonical sensor's R/G divided + * by this sensor's R/G) + * - sensitivityB: blue sensitivity ratio (set to canonical sensor's B/G divided + * by this sensor's B/G) + */ + +namespace libcamera { + +LOG_DECLARE_CATEGORY(Awb) + +namespace { + +template<typename T> +class LimitsRecorder +{ +public: + LimitsRecorder() + : min_(std::numeric_limits<T>::max()), + max_(std::numeric_limits<T>::min()) + { + } + + void record(const T &value) + { + min_ = std::min(min_, value); + max_ = std::max(max_, value); + } + + const T &min() const { return min_; } + const T &max() const { return max_; } + +private: + T min_; + T max_; +}; + +#ifndef __DOXYGEN__ +template<typename T> +std::ostream &operator<<(std::ostream &out, const LimitsRecorder<T> &v) +{ + out << "[ " << v.min() << ", " << v.max() << " ]"; + return out; +} +#endif + +} /* namespace */ + +namespace ipa { + +/** + * \brief Step size control for CT search + */ +constexpr double kSearchStep = 0.2; + +/** + * \copydoc libcamera::ipa::Interpolator::interpolate() + */ +template<> +void Interpolator<Pwl>::interpolate(const Pwl &a, const Pwl &b, Pwl &dest, double lambda) +{ + dest = Pwl::combine(a, b, + [=](double /*x*/, double y0, double y1) -> double { + return y0 * (1.0 - lambda) + y1 * lambda; + }); +} + +/** + * \class AwbBayes + * \brief Implementation of a bayesian auto white balance algorithm + * + * In a bayesian AWB algorithm the auto white balance estimation is improved by + * taking the likelihood of a given lightsource based on the estimated lux level + * into account. E.g. If it is very bright we can assume that we are outside and + * that colour temperatures around 6500 are preferred. + * + * The second part of this algorithm is the search for the most likely colour + * temperature. It is implemented in AwbBayes::coarseSearch() and in + * AwbBayes::fineSearch(). The search works very well without prior likelihoods + * and therefore the algorithm itself provides very good results even without + * prior likelihoods. + */ + +/** + * \var AwbBayes::transversePos_ + * \brief How far to wander off CT curve towards "more purple" + */ + +/** + * \var AwbBayes::transverseNeg_ + * \brief How far to wander off CT curve towards "more green" + */ + +/** + * \var AwbBayes::currentMode_ + * \brief The currently selected mode + */ + +int AwbBayes::init(const YamlObject &tuningData) +{ + int ret = colourGainCurve_.readYaml(tuningData["colourGains"], "ct", "gains"); + if (ret) { + LOG(Awb, Error) + << "Failed to parse 'colourGains' " + << "parameter from tuning file"; + return ret; + } + + ctR_.clear(); + ctB_.clear(); + for (const auto &[ct, g] : colourGainCurve_.data()) { + ctR_.append(ct, 1.0 / g[0]); + ctB_.append(ct, 1.0 / g[1]); + } + + /* We will want the inverse functions of these too. */ + ctRInverse_ = ctR_.inverse().first; + ctBInverse_ = ctB_.inverse().first; + + ret = readPriors(tuningData); + if (ret) { + LOG(Awb, Error) << "Failed to read priors"; + return ret; + } + + ret = parseModeConfigs(tuningData, controls::AwbAuto); + if (ret) { + LOG(Awb, Error) + << "Failed to parse mode parameter from tuning file"; + return ret; + } + currentMode_ = &modes_[controls::AwbAuto]; + + transversePos_ = tuningData["transversePos"].get<double>(0.01); + transverseNeg_ = tuningData["transverseNeg"].get<double>(0.01); + if (transversePos_ <= 0 || transverseNeg_ <= 0) { + LOG(Awb, Error) << "AwbConfig: transversePos/Neg must be > 0"; + return -EINVAL; + } + + return 0; +} + +int AwbBayes::readPriors(const YamlObject &tuningData) +{ + const auto &priorsList = tuningData["priors"]; + std::map<uint32_t, Pwl> priors; + + if (!priorsList) { + LOG(Awb, Error) << "No priors specified"; + return -EINVAL; + } + + for (const auto &p : priorsList.asList()) { + if (!p.contains("lux")) { + LOG(Awb, Error) << "Missing lux value"; + return -EINVAL; + } + + uint32_t lux = p["lux"].get<uint32_t>(0); + if (priors.count(lux)) { + LOG(Awb, Error) << "Duplicate prior for lux value " << lux; + return -EINVAL; + } + + std::vector<uint32_t> temperatures = + p["ct"].getList<uint32_t>().value_or(std::vector<uint32_t>{}); + std::vector<double> probabilities = + p["probability"].getList<double>().value_or(std::vector<double>{}); + + if (temperatures.size() != probabilities.size()) { + LOG(Awb, Error) + << "Ct and probability array sizes are unequal"; + return -EINVAL; + } + + if (temperatures.empty()) { + LOG(Awb, Error) + << "Ct and probability arrays are empty"; + return -EINVAL; + } + + std::map<int, double> ctToProbability; + for (unsigned int i = 0; i < temperatures.size(); i++) { + int t = temperatures[i]; + if (ctToProbability.count(t)) { + LOG(Awb, Error) << "Duplicate ct value"; + return -EINVAL; + } + + ctToProbability[t] = probabilities[i]; + } + + auto &pwl = priors[lux]; + for (const auto &[ct, prob] : ctToProbability) { + if (prob < 1e-6) { + LOG(Awb, Error) << "Prior probability must be larger than 1e-6"; + return -EINVAL; + } + pwl.append(ct, prob); + } + } + + if (priors.empty()) { + LOG(Awb, Error) << "No priors specified"; + return -EINVAL; + } + + priors_.setData(std::move(priors)); + + return 0; +} + +void AwbBayes::handleControls(const ControlList &controls) +{ + auto mode = controls.get(controls::AwbMode); + if (mode) { + auto it = modes_.find(static_cast<controls::AwbModeEnum>(*mode)); + if (it != modes_.end()) + currentMode_ = &it->second; + else + LOG(Awb, Error) << "Unsupported AWB mode " << *mode; + } +} + +std::optional<RGB<double>> AwbBayes::gainsFromColourTemperature(double colourTemperature) +{ + /* + * \todo In the RaspberryPi code, the ct curve was interpolated in + * the white point space (1/x) not in gains space. This feels counter + * intuitive, as the gains are in linear space. But I can't prove it. + */ + const auto &gains = colourGainCurve_.getInterpolated(colourTemperature); + return RGB<double>{ { gains[0], 1.0, gains[1] } }; +} + +AwbResult AwbBayes::calculateAwb(const AwbStats &stats, unsigned int lux) +{ + ipa::Pwl prior; + if (lux > 0) { + prior = priors_.getInterpolated(lux); + prior.map([](double x, double y) { + LOG(Awb, Debug) << "(" << x << "," << y << ")"; + }); + } else { + prior.append(0, 1.0); + } + + double t = coarseSearch(prior, stats); + double r = ctR_.eval(t); + double b = ctB_.eval(t); + LOG(Awb, Debug) + << "After coarse search: r " << r << " b " << b << " (gains r " + << 1 / r << " b " << 1 / b << ")"; + + /* + * Original comment from RaspberryPi: + * Not entirely sure how to handle the fine search yet. Mostly the + * estimated CT is already good enough, but the fine search allows us to + * wander transversely off the CT curve. Under some illuminants, where + * there may be more or less green light, this may prove beneficial, + * though I probably need more real datasets before deciding exactly how + * this should be controlled and tuned. + */ + fineSearch(t, r, b, prior, stats); + LOG(Awb, Debug) + << "After fine search: r " << r << " b " << b << " (gains r " + << 1 / r << " b " << 1 / b << ")"; + + return { { { 1.0 / r, 1.0, 1.0 / b } }, t }; +} + +double AwbBayes::coarseSearch(const ipa::Pwl &prior, const AwbStats &stats) const +{ + std::vector<Pwl::Point> points; + size_t bestPoint = 0; + double t = currentMode_->ctLo; + int spanR = -1; + int spanB = -1; + LimitsRecorder<double> errorLimits; + LimitsRecorder<double> priorLogLikelihoodLimits; + + /* Step down the CT curve evaluating log likelihood. */ + while (true) { + double r = ctR_.eval(t, &spanR); + double b = ctB_.eval(t, &spanB); + RGB<double> gains({ 1 / r, 1.0, 1 / b }); + double delta2Sum = stats.computeColourError(gains); + double priorLogLikelihood = log(prior.eval(prior.domain().clamp(t))); + double finalLogLikelihood = delta2Sum - priorLogLikelihood; + + errorLimits.record(delta2Sum); + priorLogLikelihoodLimits.record(priorLogLikelihood); + + points.push_back({ { t, finalLogLikelihood } }); + if (points.back().y() < points[bestPoint].y()) + bestPoint = points.size() - 1; + + if (t == currentMode_->ctHi) + break; + + /* + * Ensure even steps along the r/b curve by scaling them by the + * current t. + */ + t = std::min(t + t / 10 * kSearchStep, currentMode_->ctHi); + } + + t = points[bestPoint].x(); + LOG(Awb, Debug) << "Coarse search found CT " << t + << " error limits:" << errorLimits + << " prior log likelihood limits:" << priorLogLikelihoodLimits; + + /* + * We have the best point of the search, but refine it with a quadratic + * interpolation around its neighbors. + */ + if (points.size() > 2) { + bestPoint = std::clamp(bestPoint, std::size_t{ 1 }, points.size() - 2); + t = interpolateQuadratic(points[bestPoint - 1], + points[bestPoint], + points[bestPoint + 1]); + LOG(Awb, Debug) + << "After quadratic refinement, coarse search has CT " + << t; + } + + return t; +} + +void AwbBayes::fineSearch(double &t, double &r, double &b, ipa::Pwl const &prior, const AwbStats &stats) const +{ + int spanR = -1; + int spanB = -1; + double step = t / 10 * kSearchStep * 0.1; + int nsteps = 5; + ctR_.eval(t, &spanR); + ctB_.eval(t, &spanB); + double rDiff = ctR_.eval(t + nsteps * step, &spanR) - + ctR_.eval(t - nsteps * step, &spanR); + double bDiff = ctB_.eval(t + nsteps * step, &spanB) - + ctB_.eval(t - nsteps * step, &spanB); + Pwl::Point transverse({ bDiff, -rDiff }); + if (transverse.length2() < 1e-6) + return; + /* + * transverse is a unit vector orthogonal to the b vs. r function + * (pointing outwards with r and b increasing) + */ + transverse = transverse / transverse.length(); + double bestLogLikelihood = 0; + double bestT = 0; + Pwl::Point bestRB(0); + double transverseRange = transverseNeg_ + transversePos_; + const int maxNumDeltas = 12; + LimitsRecorder<double> errorLimits; + LimitsRecorder<double> priorLogLikelihoodLimits; + + + /* a transverse step approximately every 0.01 r/b units */ + int numDeltas = floor(transverseRange * 100 + 0.5) + 1; + numDeltas = std::clamp(numDeltas, 3, maxNumDeltas); + + /* + * Step down CT curve. March a bit further if the transverse range is + * large. + */ + nsteps += numDeltas; + for (int i = -nsteps; i <= nsteps; i++) { + double tTest = t + i * step; + double priorLogLikelihood = + log(prior.eval(prior.domain().clamp(tTest))); + priorLogLikelihoodLimits.record(priorLogLikelihood); + Pwl::Point rbStart{ { ctR_.eval(tTest, &spanR), + ctB_.eval(tTest, &spanB) } }; + Pwl::Point samples[maxNumDeltas]; + int bestPoint = 0; + + /* + * Sample numDeltas points transversely *off* the CT curve + * in the range [-transverseNeg, transversePos]. + * The x values of a sample contains the distance and the y + * value contains the corresponding log likelihood. + */ + double transverseStep = transverseRange / (numDeltas - 1); + for (int j = 0; j < numDeltas; j++) { + auto &p = samples[j]; + p.x() = -transverseNeg_ + transverseStep * j; + Pwl::Point rbTest = rbStart + transverse * p.x(); + RGB<double> gains({ 1 / rbTest[0], 1.0, 1 / rbTest[1] }); + double delta2Sum = stats.computeColourError(gains); + errorLimits.record(delta2Sum); + p.y() = delta2Sum - priorLogLikelihood; + + if (p.y() < samples[bestPoint].y()) + bestPoint = j; + } + + /* + * We have all samples transversely across the CT curve, + * now let's do a quadratic interpolation for the best result. + */ + bestPoint = std::clamp(bestPoint, 1, numDeltas - 2); + double bestOffset = interpolateQuadratic(samples[bestPoint - 1], + samples[bestPoint], + samples[bestPoint + 1]); + Pwl::Point rbTest = rbStart + transverse * bestOffset; + RGB<double> gains({ 1 / rbTest[0], 1.0, 1 / rbTest[1] }); + double delta2Sum = stats.computeColourError(gains); + errorLimits.record(delta2Sum); + double finalLogLikelihood = delta2Sum - priorLogLikelihood; + + if (bestT == 0 || finalLogLikelihood < bestLogLikelihood) { + bestLogLikelihood = finalLogLikelihood; + bestT = tTest; + bestRB = rbTest; + } + } + + t = bestT; + r = bestRB[0]; + b = bestRB[1]; + LOG(Awb, Debug) + << "Fine search found t " << t << " r " << r << " b " << b + << " error limits: " << errorLimits + << " prior log likelihood limits: " << priorLogLikelihoodLimits; +} + +/** + * \brief Find extremum of function + * \param[in] a First point + * \param[in] b Second point + * \param[in] c Third point + * + * Given 3 points on a curve, find the extremum of the function in that interval + * by fitting a quadratic. + * + * \return The x value of the extremum clamped to the interval [a.x(), c.x()] + */ +double AwbBayes::interpolateQuadratic(Pwl::Point const &a, Pwl::Point const &b, + Pwl::Point const &c) const +{ + const double eps = 1e-3; + Pwl::Point ca = c - a; + Pwl::Point ba = b - a; + double denominator = 2 * (ba.y() * ca.x() - ca.y() * ba.x()); + if (std::abs(denominator) > eps) { + double numerator = ba.y() * ca.x() * ca.x() - ca.y() * ba.x() * ba.x(); + double result = numerator / denominator + a.x(); + return std::max(a.x(), std::min(c.x(), result)); + } + /* has degenerated to straight line segment */ + return a.y() < c.y() - eps ? a.x() : (c.y() < a.y() - eps ? c.x() : b.x()); +} + +} /* namespace ipa */ + +} /* namespace libcamera */ diff --git a/src/ipa/libipa/awb_bayes.h b/src/ipa/libipa/awb_bayes.h new file mode 100644 index 00000000..47ef3cce --- /dev/null +++ b/src/ipa/libipa/awb_bayes.h @@ -0,0 +1,59 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +/* + * Copyright (C) 2024 Ideas on Board Oy + * + * Base class for bayes AWB algorithms + */ + +#pragma once + +#include <libcamera/controls.h> + +#include "libcamera/internal/vector.h" +#include "libcamera/internal/yaml_parser.h" + +#include "awb.h" +#include "interpolator.h" +#include "pwl.h" + +namespace libcamera { + +namespace ipa { + +class AwbBayes : public AwbAlgorithm +{ +public: + AwbBayes() = default; + + int init(const YamlObject &tuningData) override; + AwbResult calculateAwb(const AwbStats &stats, unsigned int lux) override; + std::optional<RGB<double>> gainsFromColourTemperature(double temperatureK) override; + void handleControls(const ControlList &controls) override; + +private: + int readPriors(const YamlObject &tuningData); + + void fineSearch(double &t, double &r, double &b, ipa::Pwl const &prior, + const AwbStats &stats) const; + double coarseSearch(const ipa::Pwl &prior, const AwbStats &stats) const; + double interpolateQuadratic(ipa::Pwl::Point const &a, + ipa::Pwl::Point const &b, + ipa::Pwl::Point const &c) const; + + Interpolator<Pwl> priors_; + Interpolator<Vector<double, 2>> colourGainCurve_; + + ipa::Pwl ctR_; + ipa::Pwl ctB_; + ipa::Pwl ctRInverse_; + ipa::Pwl ctBInverse_; + + double transversePos_; + double transverseNeg_; + + ModeConfig *currentMode_ = nullptr; +}; + +} /* namespace ipa */ + +} /* namespace libcamera */ diff --git a/src/ipa/libipa/awb_grey.cpp b/src/ipa/libipa/awb_grey.cpp new file mode 100644 index 00000000..d252edb2 --- /dev/null +++ b/src/ipa/libipa/awb_grey.cpp @@ -0,0 +1,114 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +/* + * Copyright (C) 2024 Ideas on Board Oy + * + * Implementation of grey world AWB algorithm + */ + +#include "awb_grey.h" + +#include <algorithm> + +#include <libcamera/base/log.h> +#include <libcamera/control_ids.h> + +#include "colours.h" + +using namespace libcamera::controls; + +/** + * \file awb_grey.h + * \brief Implementation of a grey world AWB algorithm + */ + +namespace libcamera { + +LOG_DECLARE_CATEGORY(Awb) +namespace ipa { + +/** + * \class AwbGrey + * \brief A Grey world auto white balance algorithm + */ + +/** + * \brief Initialize the algorithm with the given tuning data + * \param[in] tuningData The tuning data for the algorithm + * + * Load the colour temperature curve from the tuning data. If there is no tuning + * data available, continue with a warning. Manual colour temperature will not + * work in that case. + * + * \return 0 on success, a negative error code otherwise + */ +int AwbGrey::init(const YamlObject &tuningData) +{ + Interpolator<Vector<double, 2>> gains; + int ret = gains.readYaml(tuningData["colourGains"], "ct", "gains"); + if (ret < 0) + LOG(Awb, Warning) + << "Failed to parse 'colourGains' " + << "parameter from tuning file; " + << "manual colour temperature will not work properly"; + else + colourGainCurve_ = gains; + + return 0; +} + +/** + * \brief Calculate AWB data from the given statistics + * \param[in] stats The statistics to use for the calculation + * \param[in] lux The lux value of the scene + * + * The colour temperature is estimated based on the colours::estimateCCT() + * function. The gains are calculated purely based on the RGB means provided by + * the \a stats. The colour temperature is not taken into account when + * calculating the gains. + * + * The \a lux parameter is not used in this algorithm. + * + * \return The AWB result + */ +AwbResult AwbGrey::calculateAwb(const AwbStats &stats, [[maybe_unused]] unsigned int lux) +{ + AwbResult result; + auto means = stats.rgbMeans(); + result.colourTemperature = estimateCCT(means); + + /* + * Estimate the red and blue gains to apply in a grey world. The green + * gain is hardcoded to 1.0. Avoid divisions by zero by clamping the + * divisor to a minimum value of 1.0. + */ + result.gains.r() = means.g() / std::max(means.r(), 1.0); + result.gains.g() = 1.0; + result.gains.b() = means.g() / std::max(means.b(), 1.0); + return result; +} + +/** + * \brief Compute white balance gains from a colour temperature + * \param[in] colourTemperature The colour temperature in Kelvin + * + * Compute the white balance gains from a \a colourTemperature. This function + * does not take any statistics into account. It simply interpolates the colour + * gains configured in the colour temperature curve. + * + * \return The colour gains if a colour temperature curve is available, + * [1, 1, 1] otherwise. + */ +std::optional<RGB<double>> AwbGrey::gainsFromColourTemperature(double colourTemperature) +{ + if (!colourGainCurve_) { + LOG(Awb, Error) << "No gains defined"; + return std::nullopt; + } + + auto gains = colourGainCurve_->getInterpolated(colourTemperature); + return RGB<double>{ { gains[0], 1.0, gains[1] } }; +} + +} /* namespace ipa */ + +} /* namespace libcamera */ diff --git a/src/ipa/libipa/awb_grey.h b/src/ipa/libipa/awb_grey.h new file mode 100644 index 00000000..f82a368d --- /dev/null +++ b/src/ipa/libipa/awb_grey.h @@ -0,0 +1,36 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +/* + * Copyright (C) 2024 Ideas on Board Oy + * + * AWB grey world algorithm + */ + +#pragma once + +#include <optional> + +#include "libcamera/internal/vector.h" + +#include "awb.h" +#include "interpolator.h" + +namespace libcamera { + +namespace ipa { + +class AwbGrey : public AwbAlgorithm +{ +public: + AwbGrey() = default; + + int init(const YamlObject &tuningData) override; + AwbResult calculateAwb(const AwbStats &stats, unsigned int lux) override; + std::optional<RGB<double>> gainsFromColourTemperature(double colourTemperature) override; + +private: + std::optional<Interpolator<Vector<double, 2>>> colourGainCurve_; +}; + +} /* namespace ipa */ + +} /* namespace libcamera */ diff --git a/src/ipa/libipa/camera_sensor_helper.cpp b/src/ipa/libipa/camera_sensor_helper.cpp index f0ecc383..7c66cd57 100644 --- a/src/ipa/libipa/camera_sensor_helper.cpp +++ b/src/ipa/libipa/camera_sensor_helper.cpp @@ -2,12 +2,13 @@ /* * Copyright (C) 2021, Google Inc. * - * camera_sensor_helper.cpp - Helper class that performs sensor-specific + * Helper class that performs sensor-specific * parameter computations */ #include "camera_sensor_helper.h" #include <cmath> +#include <limits> #include <libcamera/base/log.h> @@ -40,6 +41,7 @@ namespace ipa { */ /** + * \fn CameraSensorHelper::CameraSensorHelper() * \brief Construct a CameraSensorHelper instance * * CameraSensorHelper derived class instances shall never be constructed @@ -48,6 +50,33 @@ namespace ipa { */ /** + * \fn CameraSensorHelper::blackLevel() + * \brief Fetch the black level of the sensor + * + * This function returns the black level of the sensor scaled to a 16bit pixel + * width. If it is unknown an empty optional is returned. + * + * \todo Fill the blanks and add pedestal values for all supported sensors. Once + * done, drop the std::optional<>. + * + * Black levels are typically the result of the following phenomena: + * - Pedestal added by the sensor to pixel values. They are typically fixed, + * sometimes programmable and should be reported in datasheets (but + * documentation is not always available). + * - Dark currents and other physical effects that add charge to pixels in the + * absence of light. Those can depend on the integration time and the sensor + * die temperature, and their contribution to pixel values depend on the + * sensor gains. + * + * The pedestal is usually the value with the biggest contribution to the + * overall black level. In most cases it is either known before or in rare cases + * (there is not a single driver with such a control in the linux kernel) can be + * queried from the sensor. This function provides that fixed, known value. + * + * \return The black level of the sensor, or std::nullopt if not known + */ + +/** * \brief Compute gain code from the analogue gain absolute value * \param[in] gain The real gain to pass * @@ -58,21 +87,16 @@ namespace ipa { */ uint32_t CameraSensorHelper::gainCode(double gain) const { - const AnalogueGainConstants &k = gainConstants_; - - switch (gainType_) { - case AnalogueGainLinear: - ASSERT(k.linear.m0 == 0 || k.linear.m1 == 0); - - return (k.linear.c0 - k.linear.c1 * gain) / - (k.linear.m1 * gain - k.linear.m0); + if (auto *l = std::get_if<AnalogueGainLinear>(&gain_)) { + ASSERT(l->m0 == 0 || l->m1 == 0); - case AnalogueGainExponential: - ASSERT(k.exp.a != 0 && k.exp.m != 0); + return (l->c0 - l->c1 * gain) / + (l->m1 * gain - l->m0); + } else if (auto *e = std::get_if<AnalogueGainExp>(&gain_)) { + ASSERT(e->a != 0 && e->m != 0); - return std::log2(gain / k.exp.a) / k.exp.m; - - default: + return std::log2(gain / e->a) / e->m; + } else { ASSERT(false); return 0; } @@ -90,38 +114,26 @@ uint32_t CameraSensorHelper::gainCode(double gain) const */ double CameraSensorHelper::gain(uint32_t gainCode) const { - const AnalogueGainConstants &k = gainConstants_; double gain = static_cast<double>(gainCode); - switch (gainType_) { - case AnalogueGainLinear: - ASSERT(k.linear.m0 == 0 || k.linear.m1 == 0); - - return (k.linear.m0 * gain + k.linear.c0) / - (k.linear.m1 * gain + k.linear.c1); + if (auto *l = std::get_if<AnalogueGainLinear>(&gain_)) { + ASSERT(l->m0 == 0 || l->m1 == 0); - case AnalogueGainExponential: - ASSERT(k.exp.a != 0 && k.exp.m != 0); + return (l->m0 * gain + l->c0) / + (l->m1 * gain + l->c1); + } else if (auto *e = std::get_if<AnalogueGainExp>(&gain_)) { + ASSERT(e->a != 0 && e->m != 0); - return k.exp.a * std::exp2(k.exp.m * gain); - - default: + return e->a * std::exp2(e->m * gain); + } else { ASSERT(false); return 0.0; } } /** - * \enum CameraSensorHelper::AnalogueGainType - * \brief The gain calculation modes as defined by the MIPI CCS - * - * Describes the image sensor analogue gain capabilities. - * Two modes are possible, depending on the sensor: Linear and Exponential. - */ - -/** - * \var CameraSensorHelper::AnalogueGainLinear - * \brief Gain is computed using linear gain estimation + * \struct CameraSensorHelper::AnalogueGainLinear + * \brief Analogue gain constants for the linear gain model * * The relationship between the integer gain parameter and the resulting gain * multiplier is given by the following equation: @@ -136,11 +148,27 @@ double CameraSensorHelper::gain(uint32_t gainCode) const * The full Gain equation therefore reduces to either: * * \f$gain=\frac{c0}{m1x+c1}\f$ or \f$\frac{m0x+c0}{c1}\f$ + * + * \var CameraSensorHelper::AnalogueGainLinear::m0 + * \brief Constant used in the linear gain coding/decoding + * + * \note Either m0 or m1 shall be zero. + * + * \var CameraSensorHelper::AnalogueGainLinear::c0 + * \brief Constant used in the linear gain coding/decoding + * + * \var CameraSensorHelper::AnalogueGainLinear::m1 + * \brief Constant used in the linear gain coding/decoding + * + * \note Either m0 or m1 shall be zero. + * + * \var CameraSensorHelper::AnalogueGainLinear::c1 + * \brief Constant used in the linear gain coding/decoding */ /** - * \var CameraSensorHelper::AnalogueGainExponential - * \brief Gain is expressed using an exponential model + * \struct CameraSensorHelper::AnalogueGainExp + * \brief Analogue gain constants for the exponential gain model * * The relationship between the integer gain parameter and the resulting gain * multiplier is given by the following equation: @@ -156,61 +184,22 @@ double CameraSensorHelper::gain(uint32_t gainCode) const * * When the gain is expressed in dB, 'a' is equal to 1 and 'm' to * \f$log_{2}{10^{\frac{1}{20}}}\f$. - */ - -/** - * \struct CameraSensorHelper::AnalogueGainLinearConstants - * \brief Analogue gain constants for the linear gain model - * - * \var CameraSensorHelper::AnalogueGainLinearConstants::m0 - * \brief Constant used in the linear gain coding/decoding * - * \note Either m0 or m1 shall be zero. - * - * \var CameraSensorHelper::AnalogueGainLinearConstants::c0 - * \brief Constant used in the linear gain coding/decoding - * - * \var CameraSensorHelper::AnalogueGainLinearConstants::m1 - * \brief Constant used in the linear gain coding/decoding - * - * \note Either m0 or m1 shall be zero. - * - * \var CameraSensorHelper::AnalogueGainLinearConstants::c1 - * \brief Constant used in the linear gain coding/decoding - */ - -/** - * \struct CameraSensorHelper::AnalogueGainExpConstants - * \brief Analogue gain constants for the exponential gain model - * - * \var CameraSensorHelper::AnalogueGainExpConstants::a + * \var CameraSensorHelper::AnalogueGainExp::a * \brief Constant used in the exponential gain coding/decoding * - * \var CameraSensorHelper::AnalogueGainExpConstants::m + * \var CameraSensorHelper::AnalogueGainExp::m * \brief Constant used in the exponential gain coding/decoding */ /** - * \struct CameraSensorHelper::AnalogueGainConstants - * \brief Analogue gain model constants - * - * This union stores the constants used to calculate the analogue gain. The - * CameraSensorHelper::gainType_ variable selects which union member is valid. - * - * \var CameraSensorHelper::AnalogueGainConstants::linear - * \brief Constants for the linear gain model - * - * \var CameraSensorHelper::AnalogueGainConstants::exp - * \brief Constants for the exponential gain model - */ - -/** - * \var CameraSensorHelper::gainType_ - * \brief The analogue gain model type + * \var CameraSensorHelper::blackLevel_ + * \brief The black level of the sensor + * \sa CameraSensorHelper::blackLevel() */ /** - * \var CameraSensorHelper::gainConstants_ + * \var CameraSensorHelper::gain_ * \brief The analogue gain parameters used for calculation * * The analogue gain is calculated through a formula, and its parameters are @@ -366,42 +355,168 @@ static constexpr double expGainDb(double step) return log2_10 * step / 20; } -class CameraSensorHelperAr0521 : public CameraSensorHelper +class CameraSensorHelperAr0144 : public CameraSensorHelper { public: - uint32_t gainCode(double gain) const override; - double gain(uint32_t gainCode) const override; + CameraSensorHelperAr0144() + { + /* Power-on default value: 168 at 12bits. */ + blackLevel_ = 2688; + } + + uint32_t gainCode(double gain) const override + { + /* The recommended minimum gain is 1.6842 to avoid artifacts. */ + gain = std::clamp(gain, 1.0 / (1.0 - 13.0 / 32.0), 18.45); + + /* + * The analogue gain is made of a coarse exponential gain in + * the range [2^0, 2^4] and a fine inversely linear gain in the + * range [1.0, 2.0[. There is an additional fixed 1.153125 + * multiplier when the coarse gain reaches 2^2. + */ + + if (gain > 4.0) + gain /= 1.153125; + + unsigned int coarse = std::log2(gain); + unsigned int fine = (1 - (1 << coarse) / gain) * 32; + + /* The fine gain rounding depends on the coarse gain. */ + if (coarse == 1 || coarse == 3) + fine &= ~1; + else if (coarse == 4) + fine &= ~3; + + return (coarse << 4) | (fine & 0xf); + } + + double gain(uint32_t gainCode) const override + { + unsigned int coarse = gainCode >> 4; + unsigned int fine = gainCode & 0xf; + unsigned int d1; + double d2, m; + + switch (coarse) { + default: + case 0: + d1 = 1; + d2 = 32.0; + m = 1.0; + break; + case 1: + d1 = 2; + d2 = 16.0; + m = 1.0; + break; + case 2: + d1 = 1; + d2 = 32.0; + m = 1.153125; + break; + case 3: + d1 = 2; + d2 = 16.0; + m = 1.153125; + break; + case 4: + d1 = 4; + d2 = 8.0; + m = 1.153125; + break; + } + + /* + * With infinite precision, the calculated gain would be exact, + * and the reverse conversion with gainCode() would produce the + * same gain code. In the real world, rounding errors may cause + * the calculated gain to be lower by an amount negligible for + * all purposes, except for the reverse conversion. Converting + * the gain to a gain code could then return the quantized value + * just lower than the original gain code. To avoid this, tests + * showed that adding the machine epsilon to the multiplier m is + * sufficient. + */ + m += std::numeric_limits<decltype(m)>::epsilon(); + + return m * (1 << coarse) / (1.0 - (fine / d1) / d2); + } private: static constexpr double kStep_ = 16; }; +REGISTER_CAMERA_SENSOR_HELPER("ar0144", CameraSensorHelperAr0144) -uint32_t CameraSensorHelperAr0521::gainCode(double gain) const +class CameraSensorHelperAr0521 : public CameraSensorHelper { - gain = std::clamp(gain, 1.0, 15.5); - unsigned int coarse = std::log2(gain); - unsigned int fine = (gain / (1 << coarse) - 1) * kStep_; +public: + uint32_t gainCode(double gain) const override + { + gain = std::clamp(gain, 1.0, 15.5); + unsigned int coarse = std::log2(gain); + unsigned int fine = (gain / (1 << coarse) - 1) * kStep_; - return (coarse << 4) | (fine & 0xf); -} + return (coarse << 4) | (fine & 0xf); + } -double CameraSensorHelperAr0521::gain(uint32_t gainCode) const -{ - unsigned int coarse = gainCode >> 4; - unsigned int fine = gainCode & 0xf; + double gain(uint32_t gainCode) const override + { + unsigned int coarse = gainCode >> 4; + unsigned int fine = gainCode & 0xf; - return (1 << coarse) * (1 + fine / kStep_); -} + return (1 << coarse) * (1 + fine / kStep_); + } +private: + static constexpr double kStep_ = 16; +}; REGISTER_CAMERA_SENSOR_HELPER("ar0521", CameraSensorHelperAr0521) +class CameraSensorHelperGc05a2 : public CameraSensorHelper +{ +public: + CameraSensorHelperGc05a2() + { + /* From datasheet: 64 at 10bits. */ + blackLevel_ = 4096; + gain_ = AnalogueGainLinear{ 100, 0, 0, 1024 }; + } +}; +REGISTER_CAMERA_SENSOR_HELPER("gc05a2", CameraSensorHelperGc05a2) + +class CameraSensorHelperGc08a3 : public CameraSensorHelper +{ +public: + CameraSensorHelperGc08a3() + { + /* From datasheet: 64 at 10bits. */ + blackLevel_ = 4096; + gain_ = AnalogueGainLinear{ 100, 0, 0, 1024 }; + } +}; +REGISTER_CAMERA_SENSOR_HELPER("gc08a3", CameraSensorHelperGc08a3) + +class CameraSensorHelperImx214 : public CameraSensorHelper +{ +public: + CameraSensorHelperImx214() + { + /* From datasheet: 64 at 10bits. */ + blackLevel_ = 4096; + gain_ = AnalogueGainLinear{ 0, 512, -1, 512 }; + } +}; +REGISTER_CAMERA_SENSOR_HELPER("imx214", CameraSensorHelperImx214) + class CameraSensorHelperImx219 : public CameraSensorHelper { public: CameraSensorHelperImx219() { - gainType_ = AnalogueGainLinear; - gainConstants_.linear = { 0, 256, -1, 256 }; + /* From datasheet: 64 at 10bits. */ + blackLevel_ = 4096; + gain_ = AnalogueGainLinear{ 0, 256, -1, 256 }; } }; REGISTER_CAMERA_SENSOR_HELPER("imx219", CameraSensorHelperImx219) @@ -411,19 +526,33 @@ class CameraSensorHelperImx258 : public CameraSensorHelper public: CameraSensorHelperImx258() { - gainType_ = AnalogueGainLinear; - gainConstants_.linear = { 0, 512, -1, 512 }; + /* From datasheet: 0x40 at 10bits. */ + blackLevel_ = 4096; + gain_ = AnalogueGainLinear{ 0, 512, -1, 512 }; } }; REGISTER_CAMERA_SENSOR_HELPER("imx258", CameraSensorHelperImx258) +class CameraSensorHelperImx283 : public CameraSensorHelper +{ +public: + CameraSensorHelperImx283() + { + /* From datasheet: 0x32 at 10bits. */ + blackLevel_ = 3200; + gain_ = AnalogueGainLinear{ 0, 2048, -1, 2048 }; + } +}; +REGISTER_CAMERA_SENSOR_HELPER("imx283", CameraSensorHelperImx283) + class CameraSensorHelperImx290 : public CameraSensorHelper { public: CameraSensorHelperImx290() { - gainType_ = AnalogueGainExponential; - gainConstants_.exp = { 1.0, expGainDb(0.3) }; + /* From datasheet: 0xf0 at 12bits. */ + blackLevel_ = 3840; + gain_ = AnalogueGainExp{ 1.0, expGainDb(0.3) }; } }; REGISTER_CAMERA_SENSOR_HELPER("imx290", CameraSensorHelperImx290) @@ -433,8 +562,7 @@ class CameraSensorHelperImx296 : public CameraSensorHelper public: CameraSensorHelperImx296() { - gainType_ = AnalogueGainExponential; - gainConstants_.exp = { 1.0, expGainDb(0.1) }; + gain_ = AnalogueGainExp{ 1.0, expGainDb(0.1) }; } }; REGISTER_CAMERA_SENSOR_HELPER("imx296", CameraSensorHelperImx296) @@ -444,13 +572,39 @@ class CameraSensorHelperImx327 : public CameraSensorHelperImx290 }; REGISTER_CAMERA_SENSOR_HELPER("imx327", CameraSensorHelperImx327) +class CameraSensorHelperImx335 : public CameraSensorHelper +{ +public: + CameraSensorHelperImx335() + { + /* From datasheet: 0x32 at 10bits. */ + blackLevel_ = 3200; + gain_ = AnalogueGainExp{ 1.0, expGainDb(0.3) }; + } +}; +REGISTER_CAMERA_SENSOR_HELPER("imx335", CameraSensorHelperImx335) + +class CameraSensorHelperImx415 : public CameraSensorHelper +{ +public: + CameraSensorHelperImx415() + { + gain_ = AnalogueGainExp{ 1.0, expGainDb(0.3) }; + } +}; +REGISTER_CAMERA_SENSOR_HELPER("imx415", CameraSensorHelperImx415) + +class CameraSensorHelperImx462 : public CameraSensorHelperImx290 +{ +}; +REGISTER_CAMERA_SENSOR_HELPER("imx462", CameraSensorHelperImx462) + class CameraSensorHelperImx477 : public CameraSensorHelper { public: CameraSensorHelperImx477() { - gainType_ = AnalogueGainLinear; - gainConstants_.linear = { 0, 1024, -1, 1024 }; + gain_ = AnalogueGainLinear{ 0, 1024, -1, 1024 }; } }; REGISTER_CAMERA_SENSOR_HELPER("imx477", CameraSensorHelperImx477) @@ -464,8 +618,7 @@ public: * The Sensor Manual doesn't appear to document the gain model. * This has been validated with some empirical testing only. */ - gainType_ = AnalogueGainLinear; - gainConstants_.linear = { 1, 0, 0, 128 }; + gain_ = AnalogueGainLinear{ 1, 0, 0, 128 }; } }; REGISTER_CAMERA_SENSOR_HELPER("ov2685", CameraSensorHelperOv2685) @@ -475,8 +628,7 @@ class CameraSensorHelperOv2740 : public CameraSensorHelper public: CameraSensorHelperOv2740() { - gainType_ = AnalogueGainLinear; - gainConstants_.linear = { 1, 0, 0, 128 }; + gain_ = AnalogueGainLinear{ 1, 0, 0, 128 }; } }; REGISTER_CAMERA_SENSOR_HELPER("ov2740", CameraSensorHelperOv2740) @@ -486,8 +638,9 @@ class CameraSensorHelperOv4689 : public CameraSensorHelper public: CameraSensorHelperOv4689() { - gainType_ = AnalogueGainLinear; - gainConstants_.linear = { 1, 0, 0, 128 }; + /* From datasheet: 0x40 at 12bits. */ + blackLevel_ = 1024; + gain_ = AnalogueGainLinear{ 1, 0, 0, 128 }; } }; REGISTER_CAMERA_SENSOR_HELPER("ov4689", CameraSensorHelperOv4689) @@ -497,8 +650,9 @@ class CameraSensorHelperOv5640 : public CameraSensorHelper public: CameraSensorHelperOv5640() { - gainType_ = AnalogueGainLinear; - gainConstants_.linear = { 1, 0, 0, 16 }; + /* From datasheet: 0x10 at 10bits. */ + blackLevel_ = 1024; + gain_ = AnalogueGainLinear{ 1, 0, 0, 16 }; } }; REGISTER_CAMERA_SENSOR_HELPER("ov5640", CameraSensorHelperOv5640) @@ -508,8 +662,7 @@ class CameraSensorHelperOv5647 : public CameraSensorHelper public: CameraSensorHelperOv5647() { - gainType_ = AnalogueGainLinear; - gainConstants_.linear = { 1, 0, 0, 16 }; + gain_ = AnalogueGainLinear{ 1, 0, 0, 16 }; } }; REGISTER_CAMERA_SENSOR_HELPER("ov5647", CameraSensorHelperOv5647) @@ -519,8 +672,7 @@ class CameraSensorHelperOv5670 : public CameraSensorHelper public: CameraSensorHelperOv5670() { - gainType_ = AnalogueGainLinear; - gainConstants_.linear = { 1, 0, 0, 128 }; + gain_ = AnalogueGainLinear{ 1, 0, 0, 128 }; } }; REGISTER_CAMERA_SENSOR_HELPER("ov5670", CameraSensorHelperOv5670) @@ -530,8 +682,9 @@ class CameraSensorHelperOv5675 : public CameraSensorHelper public: CameraSensorHelperOv5675() { - gainType_ = AnalogueGainLinear; - gainConstants_.linear = { 1, 0, 0, 128 }; + /* From Linux kernel driver: 0x40 at 10bits. */ + blackLevel_ = 4096; + gain_ = AnalogueGainLinear{ 1, 0, 0, 128 }; } }; REGISTER_CAMERA_SENSOR_HELPER("ov5675", CameraSensorHelperOv5675) @@ -541,26 +694,33 @@ class CameraSensorHelperOv5693 : public CameraSensorHelper public: CameraSensorHelperOv5693() { - gainType_ = AnalogueGainLinear; - gainConstants_.linear = { 1, 0, 0, 16 }; + gain_ = AnalogueGainLinear{ 1, 0, 0, 16 }; } }; REGISTER_CAMERA_SENSOR_HELPER("ov5693", CameraSensorHelperOv5693) +class CameraSensorHelperOv64a40 : public CameraSensorHelper +{ +public: + CameraSensorHelperOv64a40() + { + gain_ = AnalogueGainLinear{ 1, 0, 0, 128 }; + } +}; +REGISTER_CAMERA_SENSOR_HELPER("ov64a40", CameraSensorHelperOv64a40) + class CameraSensorHelperOv8858 : public CameraSensorHelper { public: CameraSensorHelperOv8858() { - gainType_ = AnalogueGainLinear; - /* * \todo Validate the selected 1/128 step value as it differs * from what the sensor manual describes. * * See: https://patchwork.linuxtv.org/project/linux-media/patch/20221106171129.166892-2-nicholas@rothemail.net/#142267 */ - gainConstants_.linear = { 1, 0, 0, 128 }; + gain_ = AnalogueGainLinear{ 1, 0, 0, 128 }; } }; REGISTER_CAMERA_SENSOR_HELPER("ov8858", CameraSensorHelperOv8858) @@ -570,8 +730,7 @@ class CameraSensorHelperOv8865 : public CameraSensorHelper public: CameraSensorHelperOv8865() { - gainType_ = AnalogueGainLinear; - gainConstants_.linear = { 1, 0, 0, 128 }; + gain_ = AnalogueGainLinear{ 1, 0, 0, 128 }; } }; REGISTER_CAMERA_SENSOR_HELPER("ov8865", CameraSensorHelperOv8865) @@ -581,8 +740,7 @@ class CameraSensorHelperOv13858 : public CameraSensorHelper public: CameraSensorHelperOv13858() { - gainType_ = AnalogueGainLinear; - gainConstants_.linear = { 1, 0, 0, 128 }; + gain_ = AnalogueGainLinear{ 1, 0, 0, 128 }; } }; REGISTER_CAMERA_SENSOR_HELPER("ov13858", CameraSensorHelperOv13858) diff --git a/src/ipa/libipa/camera_sensor_helper.h b/src/ipa/libipa/camera_sensor_helper.h index 3ea1806c..a9300a64 100644 --- a/src/ipa/libipa/camera_sensor_helper.h +++ b/src/ipa/libipa/camera_sensor_helper.h @@ -2,15 +2,16 @@ /* * Copyright (C) 2021, Google Inc. * - * camera_sensor_helper.h - Helper class that performs sensor-specific parameter computations + * Helper class that performs sensor-specific parameter computations */ #pragma once -#include <stdint.h> - #include <memory> +#include <optional> +#include <stdint.h> #include <string> +#include <variant> #include <vector> #include <libcamera/base/class.h> @@ -25,34 +26,25 @@ public: CameraSensorHelper() = default; virtual ~CameraSensorHelper() = default; + std::optional<int16_t> blackLevel() const { return blackLevel_; } virtual uint32_t gainCode(double gain) const; virtual double gain(uint32_t gainCode) const; protected: - enum AnalogueGainType { - AnalogueGainLinear, - AnalogueGainExponential, - }; - - struct AnalogueGainLinearConstants { + struct AnalogueGainLinear { int16_t m0; int16_t c0; int16_t m1; int16_t c1; }; - struct AnalogueGainExpConstants { + struct AnalogueGainExp { double a; double m; }; - union AnalogueGainConstants { - AnalogueGainLinearConstants linear; - AnalogueGainExpConstants exp; - }; - - AnalogueGainType gainType_; - AnalogueGainConstants gainConstants_; + std::optional<int16_t> blackLevel_; + std::variant<std::monostate, AnalogueGainLinear, AnalogueGainExp> gain_; private: LIBCAMERA_DISABLE_COPY_AND_MOVE(CameraSensorHelper) @@ -88,7 +80,7 @@ public: } private: - std::unique_ptr<CameraSensorHelper> createInstance() const + std::unique_ptr<CameraSensorHelper> createInstance() const override { return std::make_unique<_Helper>(); } diff --git a/src/ipa/libipa/colours.cpp b/src/ipa/libipa/colours.cpp new file mode 100644 index 00000000..97124cf4 --- /dev/null +++ b/src/ipa/libipa/colours.cpp @@ -0,0 +1,81 @@ +/* SPDX-License-Identifier: BSD-2-Clause */ +/* + * Copyright (C) 2024, Ideas on Board Oy + * + * libipa miscellaneous colour helpers + */ + +#include "colours.h" + +#include <algorithm> +#include <cmath> + +namespace libcamera { + +namespace ipa { + +/** + * \file colours.h + * \brief Functions to reduce code duplication between IPA modules + */ + +/** + * \brief Estimate luminance from RGB values following ITU-R BT.601 + * \param[in] rgb The RGB value + * + * This function estimates a luminance value from a triplet of Red, Green and + * Blue values, following the formula defined by ITU-R Recommendation BT.601-7 + * which can be found at https://www.itu.int/rec/R-REC-BT.601 + * + * \return The estimated luminance value + */ +double rec601LuminanceFromRGB(const RGB<double> &rgb) +{ + static const Vector<double, 3> rgb2y{{ + 0.299, 0.587, 0.114 + }}; + + return rgb.dot(rgb2y); +} + +/** + * \brief Estimate correlated colour temperature from RGB color space input + * \param[in] rgb The RGB value + * + * This function estimates the correlated color temperature RGB color space + * input. In physics and color science, the Planckian locus or black body locus + * is the path or locus that the color of an incandescent black body would take + * in a particular chromaticity space as the black body temperature changes. + * + * If a narrow range of color temperatures is considered (those encapsulating + * daylight being the most practical case) one can approximate the Planckian + * locus in order to calculate the CCT in terms of chromaticity coordinates. + * + * More detailed information can be found in: + * https://en.wikipedia.org/wiki/Color_temperature#Approximation + * + * \return The estimated color temperature + */ +uint32_t estimateCCT(const RGB<double> &rgb) +{ + /* + * Convert the RGB values to CIE tristimulus values (XYZ) and divide by + * the sum of X, Y and Z to calculate the CIE xy chromaticity. + */ + static const Matrix<double, 3, 3> rgb2xyz({ + -0.14282, 1.54924, -0.95641, + -0.32466, 1.57837, -0.73191, + -0.68202, 0.77073, 0.56332 + }); + + Vector<double, 3> xyz = rgb2xyz * rgb; + xyz /= xyz.sum(); + + /* Calculate CCT */ + double n = (xyz.x() - 0.3320) / (0.1858 - xyz.y()); + return 449 * n * n * n + 3525 * n * n + 6823.3 * n + 5520.33; +} + +} /* namespace ipa */ + +} /* namespace libcamera */ diff --git a/src/ipa/libipa/colours.h b/src/ipa/libipa/colours.h new file mode 100644 index 00000000..d39b2ca8 --- /dev/null +++ b/src/ipa/libipa/colours.h @@ -0,0 +1,23 @@ +/* SPDX-License-Identifier: BSD-2-Clause */ +/* + * Copyright (C) 2024, Ideas on Board Oy + * + * libipa miscellaneous colour helpers + */ + +#pragma once + +#include <stdint.h> + +#include "libcamera/internal/vector.h" + +namespace libcamera { + +namespace ipa { + +double rec601LuminanceFromRGB(const RGB<double> &rgb); +uint32_t estimateCCT(const RGB<double> &rgb); + +} /* namespace ipa */ + +} /* namespace libcamera */ diff --git a/src/ipa/libipa/exposure_mode_helper.cpp b/src/ipa/libipa/exposure_mode_helper.cpp new file mode 100644 index 00000000..0c1e99e3 --- /dev/null +++ b/src/ipa/libipa/exposure_mode_helper.cpp @@ -0,0 +1,242 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +/* + * Copyright (C) 2024, Paul Elder <paul.elder@ideasonboard.com> + * + * Helper class that performs computations relating to exposure + */ +#include "exposure_mode_helper.h" + +#include <algorithm> + +#include <libcamera/base/log.h> + +/** + * \file exposure_mode_helper.h + * \brief Helper class that performs computations relating to exposure + * + * AEGC algorithms have a need to split exposure between exposure time, analogue + * and digital gain. Multiple implementations do so based on paired stages of + * exposure time and gain limits; provide a helper to avoid duplicating the code. + */ + +namespace libcamera { + +using namespace std::literals::chrono_literals; + +LOG_DEFINE_CATEGORY(ExposureModeHelper) + +namespace ipa { + +/** + * \class ExposureModeHelper + * \brief Class for splitting exposure into exposure time and total gain + * + * The ExposureModeHelper class provides a standard interface through which an + * AEGC algorithm can divide exposure between exposure time and gain. It is + * configured with a set of exposure time and gain pairs and works by initially + * fixing gain at 1.0 and increasing exposure time up to the exposure time value + * from the first pair in the set in an attempt to meet the required exposure + * value. + * + * If the required exposure is not achievable by the first exposure time value + * alone it ramps gain up to the value from the first pair in the set. If the + * required exposure is still not met it then allows exposure time to ramp up to + * the exposure time value from the second pair in the set, and continues in this + * vein until either the required exposure time is met, or else the hardware's + * exposure time or gain limits are reached. + * + * This method allows users to strike a balance between a well-exposed image and + * an acceptable frame-rate, as opposed to simply maximising exposure time + * followed by gain. The same helpers can be used to perform the latter + * operation if needed by passing an empty set of pairs to the initialisation + * function. + * + * The gain values may exceed a camera sensor's analogue gain limits if either + * it or the IPA is also capable of digital gain. The configure() function must + * be called with the hardware's limits to inform the helper of those + * constraints. Any gain that is needed will be applied as analogue gain first + * until the hardware's limit is reached, following which digital gain will be + * used. + */ + +/** + * \brief Construct an ExposureModeHelper instance + * \param[in] stages The vector of paired exposure time and gain limits + * + * The input stages are exposure time and _total_ gain pairs; the gain + * encompasses both analogue and digital gain. + * + * The vector of stages may be empty. In that case, the helper will simply use + * the runtime limits set through setLimits() instead. + */ +ExposureModeHelper::ExposureModeHelper(const Span<std::pair<utils::Duration, double>> stages) +{ + minExposureTime_ = 0us; + maxExposureTime_ = 0us; + minGain_ = 0; + maxGain_ = 0; + + for (const auto &[s, g] : stages) { + exposureTimes_.push_back(s); + gains_.push_back(g); + } +} + +/** + * \brief Set the exposure time and gain limits + * \param[in] minExposureTime The minimum exposure time supported + * \param[in] maxExposureTime The maximum exposure time supported + * \param[in] minGain The minimum analogue gain supported + * \param[in] maxGain The maximum analogue gain supported + * + * This function configures the exposure time and analogue gain limits that need + * to be adhered to as the helper divides up exposure. Note that this function + * *must* be called whenever those limits change and before splitExposure() is + * used. + * + * If the algorithm using the helpers needs to indicate that either exposure time + * or analogue gain or both should be fixed it can do so by setting both the + * minima and maxima to the same value. + */ +void ExposureModeHelper::setLimits(utils::Duration minExposureTime, + utils::Duration maxExposureTime, + double minGain, double maxGain) +{ + minExposureTime_ = minExposureTime; + maxExposureTime_ = maxExposureTime; + minGain_ = minGain; + maxGain_ = maxGain; +} + +utils::Duration ExposureModeHelper::clampExposureTime(utils::Duration exposureTime) const +{ + return std::clamp(exposureTime, minExposureTime_, maxExposureTime_); +} + +double ExposureModeHelper::clampGain(double gain) const +{ + return std::clamp(gain, minGain_, maxGain_); +} + +/** + * \brief Split exposure into exposure time and gain + * \param[in] exposure Exposure value + * + * This function divides a given exposure into exposure time, analogue and + * digital gain by iterating through stages of exposure time and gain limits. + * At each stage the current stage's exposure time limit is multiplied by the + * previous stage's gain limit (or 1.0 initially) to see if the combination of + * the two can meet the required exposure. If they cannot then the current + * stage's exposure time limit is multiplied by the same stage's gain limit to + * see if that combination can meet the required exposure time. If they cannot + * then the function moves to consider the next stage. + * + * When a combination of exposure time and gain _stage_ limits are found that + * are sufficient to meet the required exposure, the function attempts to reduce + * exposure time as much as possible whilst fixing gain and still meeting the + * exposure. If a _runtime_ limit prevents exposure time from being lowered + * enough to meet the exposure with gain fixed at the stage limit, gain is also + * lowered to compensate. + * + * Once the exposure time and gain values are ascertained, gain is assigned as + * analogue gain as much as possible, with digital gain only in use if the + * maximum analogue gain runtime limit is unable to accommodate the exposure + * value. + * + * If no combination of exposure time and gain limits is found that meets the + * required exposure, the helper falls-back to simply maximising the exposure + * time first, followed by analogue gain, followed by digital gain. + * + * \return Tuple of exposure time, analogue gain, and digital gain + */ +std::tuple<utils::Duration, double, double> +ExposureModeHelper::splitExposure(utils::Duration exposure) const +{ + ASSERT(maxExposureTime_); + ASSERT(maxGain_); + + bool gainFixed = minGain_ == maxGain_; + bool exposureTimeFixed = minExposureTime_ == maxExposureTime_; + + /* + * There's no point entering the loop if we cannot change either gain + * nor exposure time anyway. + */ + if (exposureTimeFixed && gainFixed) + return { minExposureTime_, minGain_, exposure / (minExposureTime_ * minGain_) }; + + utils::Duration exposureTime; + double stageGain = 1.0; + double gain; + + for (unsigned int stage = 0; stage < gains_.size(); stage++) { + double lastStageGain = stage == 0 ? 1.0 : clampGain(gains_[stage - 1]); + utils::Duration stageExposureTime = clampExposureTime(exposureTimes_[stage]); + stageGain = clampGain(gains_[stage]); + + /* + * We perform the clamping on both exposure time and gain in + * case the helper has had limits set that prevent those values + * being lowered beyond a certain minimum...this can happen at + * runtime for various reasons and so would not be known when + * the stage limits are initialised. + */ + + /* Clamp the gain to lastStageGain and regulate exposureTime. */ + if (stageExposureTime * lastStageGain >= exposure) { + exposureTime = clampExposureTime(exposure / clampGain(lastStageGain)); + gain = clampGain(exposure / exposureTime); + + return { exposureTime, gain, exposure / (exposureTime * gain) }; + } + + /* Clamp the exposureTime to stageExposureTime and regulate gain. */ + if (stageExposureTime * stageGain >= exposure) { + exposureTime = clampExposureTime(stageExposureTime); + gain = clampGain(exposure / exposureTime); + + return { exposureTime, gain, exposure / (exposureTime * gain) }; + } + } + + /* + * From here on all we can do is max out the exposure time, followed by + * the analogue gain. If we still haven't achieved the target we send + * the rest of the exposure time to digital gain. If we were given no + * stages to use then the default stageGain of 1.0 is used so that + * exposure time is maxed before gain is touched at all. + */ + exposureTime = clampExposureTime(exposure / clampGain(stageGain)); + gain = clampGain(exposure / exposureTime); + + return { exposureTime, gain, exposure / (exposureTime * gain) }; +} + +/** + * \fn ExposureModeHelper::minExposureTime() + * \brief Retrieve the configured minimum exposure time limit set through + * setLimits() + * \return The minExposureTime_ value + */ + +/** + * \fn ExposureModeHelper::maxExposureTime() + * \brief Retrieve the configured maximum exposure time set through setLimits() + * \return The maxExposureTime_ value + */ + +/** + * \fn ExposureModeHelper::minGain() + * \brief Retrieve the configured minimum gain set through setLimits() + * \return The minGain_ value + */ + +/** + * \fn ExposureModeHelper::maxGain() + * \brief Retrieve the configured maximum gain set through setLimits() + * \return The maxGain_ value + */ + +} /* namespace ipa */ + +} /* namespace libcamera */ diff --git a/src/ipa/libipa/exposure_mode_helper.h b/src/ipa/libipa/exposure_mode_helper.h new file mode 100644 index 00000000..c5be1b67 --- /dev/null +++ b/src/ipa/libipa/exposure_mode_helper.h @@ -0,0 +1,53 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +/* + * Copyright (C) 2024, Paul Elder <paul.elder@ideasonboard.com> + * + * Helper class that performs computations relating to exposure + */ + +#pragma once + +#include <tuple> +#include <utility> +#include <vector> + +#include <libcamera/base/span.h> +#include <libcamera/base/utils.h> + +namespace libcamera { + +namespace ipa { + +class ExposureModeHelper +{ +public: + ExposureModeHelper(const Span<std::pair<utils::Duration, double>> stages); + ~ExposureModeHelper() = default; + + void setLimits(utils::Duration minExposureTime, utils::Duration maxExposureTime, + double minGain, double maxGain); + + std::tuple<utils::Duration, double, double> + splitExposure(utils::Duration exposure) const; + + utils::Duration minExposureTime() const { return minExposureTime_; } + utils::Duration maxExposureTime() const { return maxExposureTime_; } + double minGain() const { return minGain_; } + double maxGain() const { return maxGain_; } + +private: + utils::Duration clampExposureTime(utils::Duration exposureTime) const; + double clampGain(double gain) const; + + std::vector<utils::Duration> exposureTimes_; + std::vector<double> gains_; + + utils::Duration minExposureTime_; + utils::Duration maxExposureTime_; + double minGain_; + double maxGain_; +}; + +} /* namespace ipa */ + +} /* namespace libcamera */ diff --git a/src/ipa/libipa/fc_queue.cpp b/src/ipa/libipa/fc_queue.cpp index e812faa5..0365e919 100644 --- a/src/ipa/libipa/fc_queue.cpp +++ b/src/ipa/libipa/fc_queue.cpp @@ -2,7 +2,7 @@ /* * Copyright (C) 2022, Google Inc. * - * fc_queue.cpp - IPA Frame context queue + * IPA Frame context queue */ #include "fc_queue.h" diff --git a/src/ipa/libipa/fc_queue.h b/src/ipa/libipa/fc_queue.h index a589e7e1..a1d13652 100644 --- a/src/ipa/libipa/fc_queue.h +++ b/src/ipa/libipa/fc_queue.h @@ -2,7 +2,7 @@ /* * Copyright (C) 2022, Google Inc. * - * fc_queue.h - IPA Frame context queue + * IPA Frame context queue */ #pragma once @@ -25,6 +25,7 @@ struct FrameContext { private: template<typename T> friend class FCQueue; uint32_t frame; + bool initialised = false; }; template<typename FrameContext> @@ -38,8 +39,10 @@ public: void clear() { - for (FrameContext &ctx : contexts_) + for (FrameContext &ctx : contexts_) { + ctx.initialised = false; ctx.frame = 0; + } } FrameContext &alloc(const uint32_t frame) @@ -83,6 +86,21 @@ public: << " has been overwritten by " << frameContext.frame; + if (frame == 0 && !frameContext.initialised) { + /* + * If the IPA calls get() at start() time it will get an + * un-intialized FrameContext as the below "frame == + * frameContext.frame" check will return success because + * FrameContexts are zeroed at creation time. + * + * Make sure the FrameContext gets initialised if get() + * is called before alloc() by the IPA for frame#0. + */ + init(frameContext, frame); + + return frameContext; + } + if (frame == frameContext.frame) return frameContext; @@ -108,6 +126,7 @@ private: { frameContext = {}; frameContext.frame = frame; + frameContext.initialised = true; } std::vector<FrameContext> contexts_; diff --git a/src/ipa/libipa/fixedpoint.cpp b/src/ipa/libipa/fixedpoint.cpp new file mode 100644 index 00000000..6b698fc5 --- /dev/null +++ b/src/ipa/libipa/fixedpoint.cpp @@ -0,0 +1,42 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +/* + * Copyright (C) 2024, Paul Elder <paul.elder@ideasonboard.com> + * + * Fixed / floating point conversions + */ + +#include "fixedpoint.h" + +/** + * \file fixedpoint.h + */ + +namespace libcamera { + +namespace ipa { + +/** + * \fn R floatingToFixedPoint(T number) + * \brief Convert a floating point number to a fixed-point representation + * \tparam I Bit width of the integer part of the fixed-point + * \tparam F Bit width of the fractional part of the fixed-point + * \tparam R Return type of the fixed-point representation + * \tparam T Input type of the floating point representation + * \param number The floating point number to convert to fixed point + * \return The converted value + */ + +/** + * \fn R fixedToFloatingPoint(T number) + * \brief Convert a fixed-point number to a floating point representation + * \tparam I Bit width of the integer part of the fixed-point + * \tparam F Bit width of the fractional part of the fixed-point + * \tparam R Return type of the floating point representation + * \tparam T Input type of the fixed-point representation + * \param number The fixed point number to convert to floating point + * \return The converted value + */ + +} /* namespace ipa */ + +} /* namespace libcamera */ diff --git a/src/ipa/libipa/fixedpoint.h b/src/ipa/libipa/fixedpoint.h new file mode 100644 index 00000000..709cf50f --- /dev/null +++ b/src/ipa/libipa/fixedpoint.h @@ -0,0 +1,65 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +/* + * Copyright (C) 2024, Paul Elder <paul.elder@ideasonboard.com> + * + * Fixed / floating point conversions + */ + +#pragma once + +#include <cmath> +#include <type_traits> + +namespace libcamera { + +namespace ipa { + +#ifndef __DOXYGEN__ +template<unsigned int I, unsigned int F, typename R, typename T, + std::enable_if_t<std::is_integral_v<R> && + std::is_floating_point_v<T>> * = nullptr> +#else +template<unsigned int I, unsigned int F, typename R, typename T> +#endif +constexpr R floatingToFixedPoint(T number) +{ + static_assert(sizeof(int) >= sizeof(R)); + static_assert(I + F <= sizeof(R) * 8); + + /* + * The intermediate cast to int is needed on arm platforms to properly + * cast negative values. See + * https://embeddeduse.com/2013/08/25/casting-a-negative-float-to-an-unsigned-int/ + */ + R mask = (1 << (F + I)) - 1; + R frac = static_cast<R>(static_cast<int>(std::round(number * (1 << F)))) & mask; + + return frac; +} + +#ifndef __DOXYGEN__ +template<unsigned int I, unsigned int F, typename R, typename T, + std::enable_if_t<std::is_floating_point_v<R> && + std::is_integral_v<T>> * = nullptr> +#else +template<unsigned int I, unsigned int F, typename R, typename T> +#endif +constexpr R fixedToFloatingPoint(T number) +{ + static_assert(sizeof(int) >= sizeof(T)); + static_assert(I + F <= sizeof(T) * 8); + + /* + * Recreate the upper bits in case of a negative number by shifting the sign + * bit from the fixed point to the first bit of the unsigned and then right shifting + * by the same amount which keeps the sign bit in place. + * This can be optimized by the compiler quite well. + */ + int remaining_bits = sizeof(int) * 8 - (I + F); + int t = static_cast<int>(static_cast<unsigned>(number) << remaining_bits) >> remaining_bits; + return static_cast<R>(t) / static_cast<R>(1 << F); +} + +} /* namespace ipa */ + +} /* namespace libcamera */ diff --git a/src/ipa/libipa/histogram.cpp b/src/ipa/libipa/histogram.cpp index 6b5cde8e..bcf26390 100644 --- a/src/ipa/libipa/histogram.cpp +++ b/src/ipa/libipa/histogram.cpp @@ -2,7 +2,7 @@ /* * Copyright (C) 2019, Raspberry Pi Ltd * - * histogram.cpp - histogram calculations + * histogram calculations */ #include "histogram.h" @@ -29,24 +29,46 @@ namespace ipa { */ /** + * \fn Histogram::Histogram() + * \brief Construct an empty Histogram + * + * This empty constructor exists largely to allow Histograms to be embedded in + * other classes which may be created before the contents of the Histogram are + * known. + */ + +/** * \brief Create a cumulative histogram - * \param[in] data A pre-sorted histogram to be passed + * \param[in] data A (non-cumulative) histogram */ Histogram::Histogram(Span<const uint32_t> data) { - cumulative_.reserve(data.size()); - cumulative_.push_back(0); - for (const uint32_t &value : data) - cumulative_.push_back(cumulative_.back() + value); + cumulative_.resize(data.size() + 1); + cumulative_[0] = 0; + for (const auto &[i, value] : utils::enumerate(data)) + cumulative_[i + 1] = cumulative_[i] + value; } /** + * \fn Histogram::Histogram(Span<const uint32_t> data, Transform transform) + * \brief Create a cumulative histogram + * \param[in] data A (non-cumulative) histogram + * \param[in] transform The transformation function to apply to every bin + */ + +/** * \fn Histogram::bins() * \brief Retrieve the number of bins currently used by the Histogram * \return Number of bins */ /** + * \fn Histogram::data() + * \brief Retrieve the internal data + * \return The data + */ + +/** * \fn Histogram::total() * \brief Retrieve the total number of values in the data set * \return Number of values @@ -108,7 +130,8 @@ double Histogram::quantile(double q, uint32_t first, uint32_t last) const if (cumulative_[first + 1] == cumulative_[first]) frac = 0; else - frac = (item - cumulative_[first]) / (cumulative_[first + 1] - cumulative_[first]); + frac = (q * total() - cumulative_[first]) + / (cumulative_[first + 1] - cumulative_[first]); return first + frac; } @@ -126,26 +149,37 @@ double Histogram::quantile(double q, uint32_t first, uint32_t last) const double Histogram::interQuantileMean(double lowQuantile, double highQuantile) const { ASSERT(highQuantile > lowQuantile); - /* Proportion of pixels which lies below lowQuantile */ - double lowPoint = quantile(lowQuantile); - /* Proportion of pixels which lies below highQuantile */ - double highPoint = quantile(highQuantile, static_cast<uint32_t>(lowPoint)); - double sumBinFreq = 0, cumulFreq = 0; - - for (double p_next = floor(lowPoint) + 1.0; - p_next <= ceil(highPoint); - lowPoint = p_next, p_next += 1.0) { - int bin = floor(lowPoint); + + /* Proportion of pixels which lies below lowQuantile and highQuantile. */ + const double lowPoint = quantile(lowQuantile); + const double highPoint = quantile(highQuantile, static_cast<uint32_t>(lowPoint)); + + double sumBinFreq = 0; + double cumulFreq = 0; + + /* + * Calculate the mean pixel value between the low and high points by + * summing all the pixels between the two points, and dividing the sum + * by the number of pixels. Given the discrete nature of the histogram + * data, the sum of the pixels is approximated by accumulating the + * product of the bin values (calculated as the mid point of the bin) by + * the number of pixels they contain, for each bin in the internal. + */ + for (unsigned bin = std::floor(lowPoint); bin < std::ceil(highPoint); bin++) { + const double lowBound = std::max<double>(bin, lowPoint); + const double highBound = std::min<double>(bin + 1, highPoint); + double freq = (cumulative_[bin + 1] - cumulative_[bin]) - * (std::min(p_next, highPoint) - lowPoint); + * (highBound - lowBound); /* Accumulate weighted bin */ - sumBinFreq += bin * freq; + sumBinFreq += (highBound + lowBound) / 2 * freq; + /* Accumulate weights */ cumulFreq += freq; } - /* add 0.5 to give an average for bin mid-points */ - return sumBinFreq / cumulFreq + 0.5; + + return sumBinFreq / cumulFreq; } } /* namespace ipa */ diff --git a/src/ipa/libipa/histogram.h b/src/ipa/libipa/histogram.h index 05bb4b80..a926002c 100644 --- a/src/ipa/libipa/histogram.h +++ b/src/ipa/libipa/histogram.h @@ -2,18 +2,18 @@ /* * Copyright (C) 2019, Raspberry Pi Ltd * - * histogram.h - histogram calculation interface + * histogram calculation interface */ #pragma once -#include <assert.h> #include <limits.h> #include <stdint.h> - +#include <type_traits> #include <vector> #include <libcamera/base/span.h> +#include <libcamera/base/utils.h> namespace libcamera { @@ -22,8 +22,21 @@ namespace ipa { class Histogram { public: + Histogram() { cumulative_.push_back(0); } Histogram(Span<const uint32_t> data); + + template<typename Transform, + std::enable_if_t<std::is_invocable_v<Transform, uint32_t>> * = nullptr> + Histogram(Span<const uint32_t> data, Transform transform) + { + cumulative_.resize(data.size() + 1); + cumulative_[0] = 0; + for (const auto &[i, value] : utils::enumerate(data)) + cumulative_[i + 1] = cumulative_[i] + transform(value); + } + size_t bins() const { return cumulative_.size() - 1; } + const Span<const uint64_t> data() const { return cumulative_; } uint64_t total() const { return cumulative_[cumulative_.size() - 1]; } uint64_t cumulativeFrequency(double bin) const; double quantile(double q, uint32_t first = 0, uint32_t last = UINT_MAX) const; diff --git a/src/ipa/libipa/interpolator.cpp b/src/ipa/libipa/interpolator.cpp new file mode 100644 index 00000000..f901a86e --- /dev/null +++ b/src/ipa/libipa/interpolator.cpp @@ -0,0 +1,163 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +/* + * Copyright (C) 2024, Paul Elder <paul.elder@ideasonboard.com> + * + * Helper class for interpolating objects + */ +#include "interpolator.h" + +#include <algorithm> +#include <string> + +#include <libcamera/base/log.h> + +#include "libcamera/internal/yaml_parser.h" + +#include "interpolator.h" + +/** + * \file interpolator.h + * \brief Helper class for linear interpolating a set of objects + */ + +namespace libcamera { + +LOG_DEFINE_CATEGORY(Interpolator) + +namespace ipa { + +/** + * \class Interpolator + * \brief Class for storing, retrieving, and interpolating objects + * \tparam T Type of objects stored in the interpolator + * + * The main use case is to pass a map from color temperatures to corresponding + * objects (eg. matrices for color correction), and then requesting a + * interpolated object for a specific color temperature. This class will + * abstract away the interpolation portion. + */ + +/** + * \fn Interpolator::Interpolator() + * \brief Construct an empty interpolator + */ + +/** + * \fn Interpolator::Interpolator(const std::map<unsigned int, T> &data) + * \brief Construct an interpolator from a map of objects + * \param data Map from which to construct the interpolator + */ + +/** + * \fn Interpolator::Interpolator(std::map<unsigned int, T> &&data) + * \brief Construct an interpolator from a map of objects + * \param data Map from which to construct the interpolator + */ + +/** + * \fn int Interpolator<T>::readYaml(const libcamera::YamlObject &yaml, + const std::string &key_name, + const std::string &value_name) + * \brief Initialize an Interpolator instance from yaml + * \tparam T Type of data stored in the interpolator + * \param[in] yaml The yaml object that contains the map of unsigned integers to + * objects + * \param[in] key_name The name of the key in the yaml object + * \param[in] value_name The name of the value in the yaml object + * + * The yaml object is expected to be a list of maps. Each map has two or more + * pairs: one of \a key_name to the key value (usually color temperature), and + * one or more of \a value_name to the object. This is a bit difficult to + * explain, so here is an example (in python, as it is easier to parse than + * yaml): + * [ + * { + * 'ct': 2860, + * 'ccm': [ 2.12089, -0.52461, -0.59629, + * -0.85342, 2.80445, -0.95103, + * -0.26897, -1.14788, 2.41685 ], + * 'offsets': [ 0, 0, 0 ] + * }, + * + * { + * 'ct': 2960, + * 'ccm': [ 2.26962, -0.54174, -0.72789, + * -0.77008, 2.60271, -0.83262, + * -0.26036, -1.51254, 2.77289 ], + * 'offsets': [ 0, 0, 0 ] + * }, + * + * { + * 'ct': 3603, + * 'ccm': [ 2.18644, -0.66148, -0.52496, + * -0.77828, 2.69474, -0.91645, + * -0.25239, -0.83059, 2.08298 ], + * 'offsets': [ 0, 0, 0 ] + * }, + * ] + * + * In this case, \a key_name would be 'ct', and \a value_name can be either + * 'ccm' or 'offsets'. This way multiple interpolators can be defined in + * one set of color temperature ranges in the tuning file, and they can be + * retrieved separately with the \a value_name parameter. + * + * \return Zero on success, negative error code otherwise + */ + +/** + * \fn void Interpolator<T>::setQuantization(const unsigned int q) + * \brief Set the quantization value + * \param[in] q The quantization value + * + * Sets the quantization value. When this is set, 'key' gets quantized to this + * size, before doing the interpolation. This can help in reducing the number of + * updates pushed to the hardware. + * + * Note that normally a threshold needs to be combined with quantization. + * Otherwise a value that swings around the edge of the quantization step will + * lead to constant updates. + */ + +/** + * \fn void Interpolator<T>::setData(std::map<unsigned int, T> &&data) + * \brief Set the internal map + * + * Overwrites the internal map using move semantics. + */ + +/** + * \fn std::map<unsigned int, T> &Interpolator<T>::data() const + * \brief Access the internal map + * + * \return The internal map + */ + +/** + * \fn const T& Interpolator<T>::getInterpolated() + * \brief Retrieve an interpolated value for the given key + * \param[in] key The unsigned integer key of the object to retrieve + * \param[out] quantizedKey If provided, the key value after quantization + * \return The object corresponding to the key. The object is cached internally, + * so on successive calls with the same key (after quantization) interpolation + * is not recalculated. + */ + +/** + * \fn void Interpolator<T>::interpolate(const T &a, const T &b, T &dest, double lambda) + * \brief Interpolate between two instances of T + * \param a The first value to interpolate + * \param b The second value to interpolate + * \param dest The destination for the interpolated value + * \param lambda The interpolation factor (0..1) + * + * Interpolates between \a a and \a b according to \a lambda. It calculates + * dest = a * (1.0 - lambda) + b * lambda; + * + * If T supports multiplication with double and addition, this function can be + * used as is. For other types this function can be overwritten using partial + * template specialization. + */ + +} /* namespace ipa */ + +} /* namespace libcamera */ diff --git a/src/ipa/libipa/interpolator.h b/src/ipa/libipa/interpolator.h new file mode 100644 index 00000000..7880db69 --- /dev/null +++ b/src/ipa/libipa/interpolator.h @@ -0,0 +1,136 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +/* + * Copyright (C) 2024, Paul Elder <paul.elder@ideasonboard.com> + * + * Helper class for interpolating maps of objects + */ + +#pragma once + +#include <algorithm> +#include <cmath> +#include <map> +#include <string> +#include <tuple> + +#include <libcamera/base/log.h> + +#include "libcamera/internal/yaml_parser.h" + +namespace libcamera { + +LOG_DECLARE_CATEGORY(Interpolator) + +namespace ipa { + +template<typename T> +class Interpolator +{ +public: + Interpolator() = default; + Interpolator(const std::map<unsigned int, T> &data) + : data_(data) + { + } + Interpolator(std::map<unsigned int, T> &&data) + : data_(std::move(data)) + { + } + + ~Interpolator() = default; + + int readYaml(const libcamera::YamlObject &yaml, + const std::string &key_name, + const std::string &value_name) + { + data_.clear(); + lastInterpolatedKey_.reset(); + + if (!yaml.isList()) { + LOG(Interpolator, Error) << "yaml object must be a list"; + return -EINVAL; + } + + for (const auto &value : yaml.asList()) { + unsigned int ct = std::stoul(value[key_name].get<std::string>("")); + std::optional<T> data = + value[value_name].get<T>(); + if (!data) { + return -EINVAL; + } + + data_[ct] = *data; + } + + if (data_.size() < 1) { + LOG(Interpolator, Error) << "Need at least one element"; + return -EINVAL; + } + + return 0; + } + + void setQuantization(const unsigned int q) + { + quantization_ = q; + } + + void setData(std::map<unsigned int, T> &&data) + { + data_ = std::move(data); + lastInterpolatedKey_.reset(); + } + + const std::map<unsigned int, T> &data() const + { + return data_; + } + + const T &getInterpolated(unsigned int key, unsigned int *quantizedKey = nullptr) + { + ASSERT(data_.size() > 0); + + if (quantization_ > 0) + key = std::lround(key / static_cast<double>(quantization_)) * quantization_; + + if (quantizedKey) + *quantizedKey = key; + + if (lastInterpolatedKey_.has_value() && + *lastInterpolatedKey_ == key) + return lastInterpolatedValue_; + + auto it = data_.lower_bound(key); + + if (it == data_.begin()) + return it->second; + + if (it == data_.end()) + return std::prev(it)->second; + + if (it->first == key) + return it->second; + + auto it2 = std::prev(it); + double lambda = (key - it2->first) / static_cast<double>(it->first - it2->first); + interpolate(it2->second, it->second, lastInterpolatedValue_, lambda); + lastInterpolatedKey_ = key; + + return lastInterpolatedValue_; + } + + void interpolate(const T &a, const T &b, T &dest, double lambda) + { + dest = a * (1.0 - lambda) + b * lambda; + } + +private: + std::map<unsigned int, T> data_; + T lastInterpolatedValue_; + std::optional<unsigned int> lastInterpolatedKey_; + unsigned int quantization_ = 0; +}; + +} /* namespace ipa */ + +} /* namespace libcamera */ diff --git a/src/ipa/libipa/lsc_polynomial.cpp b/src/ipa/libipa/lsc_polynomial.cpp new file mode 100644 index 00000000..f607d86c --- /dev/null +++ b/src/ipa/libipa/lsc_polynomial.cpp @@ -0,0 +1,81 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +/* + * Copyright (C) 2024, Ideas On Board + * + * Polynomial class to represent lens shading correction + */ + +#include "lsc_polynomial.h" + +#include <libcamera/base/log.h> + +/** + * \file lsc_polynomial.h + * \brief LscPolynomial class + */ + +namespace libcamera { + +LOG_DEFINE_CATEGORY(LscPolynomial) + +namespace ipa { + +/** + * \class LscPolynomial + * \brief Class for handling even polynomials used in lens shading correction + * + * Shading artifacts of camera lenses can be modeled using even radial + * polynomials. This class implements a polynomial with 5 coefficients which + * follows the definition of the FixVignetteRadial opcode in the Adobe DNG + * specification. + */ + +/** + * \fn LscPolynomial::LscPolynomial(double cx = 0.0, double cy = 0.0, double k0 = 0.0, + double k1 = 0.0, double k2 = 0.0, double k3 = 0.0, + double k4 = 0.0) + * \brief Construct a polynomial using the given coefficients + * \param cx Center-x relative to the image in normalized coordinates (0..1) + * \param cy Center-y relative to the image in normalized coordinates (0..1) + * \param k0 Coefficient of the polynomial + * \param k1 Coefficient of the polynomial + * \param k2 Coefficient of the polynomial + * \param k3 Coefficient of the polynomial + * \param k4 Coefficient of the polynomial + */ + +/** + * \fn LscPolynomial::sampleAtNormalizedPixelPos(double x, double y) + * \brief Sample the polynomial at the given normalized pixel position + * + * This functions samples the polynomial at the given pixel position divided by + * the value returned by getM(). + * + * \param x x position in normalized coordinates + * \param y y position in normalized coordinates + * \return The sampled value + */ + +/** + * \fn LscPolynomial::getM() + * \brief Get the value m as described in the dng specification + * + * Returns m according to dng spec. m represents the Euclidean distance + * (in pixels) from the optical center to the farthest pixel in the + * image. + * + * \return The sampled value + */ + +/** + * \fn LscPolynomial::setReferenceImageSize(const Size &size) + * \brief Set the reference image size + * + * Set the reference image size that is used for subsequent calls to getM() and + * sampleAtNormalizedPixelPos() + * + * \param size The size of the reference image + */ + +} // namespace ipa +} // namespace libcamera diff --git a/src/ipa/libipa/lsc_polynomial.h b/src/ipa/libipa/lsc_polynomial.h new file mode 100644 index 00000000..c898faeb --- /dev/null +++ b/src/ipa/libipa/lsc_polynomial.h @@ -0,0 +1,105 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +/* + * Copyright (C) 2024, Ideas On Board + * + * Helper for radial polynomial used in lens shading correction. + */ +#pragma once + +#include <algorithm> +#include <array> +#include <assert.h> +#include <cmath> + +#include <libcamera/base/log.h> +#include <libcamera/base/span.h> + +#include "libcamera/internal/yaml_parser.h" + +namespace libcamera { + +LOG_DECLARE_CATEGORY(LscPolynomial) + +namespace ipa { + +class LscPolynomial +{ +public: + LscPolynomial(double cx = 0.0, double cy = 0.0, double k0 = 0.0, + double k1 = 0.0, double k2 = 0.0, double k3 = 0.0, + double k4 = 0.0) + : cx_(cx), cy_(cy), cnx_(0), cny_(0), + coefficients_({ k0, k1, k2, k3, k4 }) + { + } + + double sampleAtNormalizedPixelPos(double x, double y) const + { + double dx = x - cnx_; + double dy = y - cny_; + double r = sqrt(dx * dx + dy * dy); + double res = 1.0; + for (unsigned int i = 0; i < coefficients_.size(); i++) { + res += coefficients_[i] * std::pow(r, (i + 1) * 2); + } + return res; + } + + double getM() const + { + double cpx = imageSize_.width * cx_; + double cpy = imageSize_.height * cy_; + double mx = std::max(cpx, std::fabs(imageSize_.width - cpx)); + double my = std::max(cpy, std::fabs(imageSize_.height - cpy)); + + return sqrt(mx * mx + my * my); + } + + void setReferenceImageSize(const Size &size) + { + assert(!size.isNull()); + imageSize_ = size; + + /* Calculate normalized centers */ + double m = getM(); + cnx_ = (size.width * cx_) / m; + cny_ = (size.height * cy_) / m; + } + +private: + double cx_; + double cy_; + double cnx_; + double cny_; + std::array<double, 5> coefficients_; + + Size imageSize_; +}; + +} /* namespace ipa */ + +#ifndef __DOXYGEN__ + +template<> +struct YamlObject::Getter<ipa::LscPolynomial> { + std::optional<ipa::LscPolynomial> get(const YamlObject &obj) const + { + std::optional<double> cx = obj["cx"].get<double>(); + std::optional<double> cy = obj["cy"].get<double>(); + std::optional<double> k0 = obj["k0"].get<double>(); + std::optional<double> k1 = obj["k1"].get<double>(); + std::optional<double> k2 = obj["k2"].get<double>(); + std::optional<double> k3 = obj["k3"].get<double>(); + std::optional<double> k4 = obj["k4"].get<double>(); + + if (!(cx && cy && k0 && k1 && k2 && k3 && k4)) + LOG(LscPolynomial, Error) + << "Polynomial is missing a parameter"; + + return ipa::LscPolynomial(*cx, *cy, *k0, *k1, *k2, *k3, *k4); + } +}; + +#endif + +} /* namespace libcamera */ diff --git a/src/ipa/libipa/lux.cpp b/src/ipa/libipa/lux.cpp new file mode 100644 index 00000000..899e8824 --- /dev/null +++ b/src/ipa/libipa/lux.cpp @@ -0,0 +1,173 @@ +/* SPDX-License-Identifier: BSD-2-Clause */ +/* + * Copyright (C) 2019, Raspberry Pi Ltd + * Copyright (C) 2024, Paul Elder <paul.elder@ideasonboard.com> + * + * Helper class that implements lux estimation + */ +#include "lux.h" + +#include <algorithm> +#include <chrono> + +#include <libcamera/base/log.h> + +#include "libcamera/internal/yaml_parser.h" + +#include "histogram.h" + +/** + * \file lux.h + * \brief Helper class that implements lux estimation + * + * Estimating the lux level of an image is a common operation that can for + * instance be used to adjust the target Y value in AGC or for Bayesian AWB + * estimation. + */ + +namespace libcamera { + +using namespace std::literals::chrono_literals; + +LOG_DEFINE_CATEGORY(Lux) + +namespace ipa { + +/** + * \class Lux + * \brief Class that implements lux estimation + * + * IPAs that wish to use lux estimation should create a Lux algorithm module + * that lightly wraps this module by providing the platform-specific luminance + * histogram. The Lux entry in the tuning file must then precede the algorithms + * that depend on the estimated lux value. + */ + +/** + * \var Lux::referenceExposureTime_ + * \brief The exposure time of the reference image, in microseconds + */ + +/** + * \var Lux::referenceAnalogueGain_ + * \brief The analogue gain of the reference image + */ + +/** + * \var Lux::referenceDigitalGain_ + * \brief The analogue gain of the reference image + */ + +/** + * \var Lux::referenceY_ + * \brief The measured luminance of the reference image, normalized to 1 + * + */ + +/** + * \var Lux::referenceLux_ + * \brief The estimated lux level of the reference image + */ + +/** + * \brief Construct the Lux helper module + */ +Lux::Lux() +{ +} + +/** + * \brief Parse tuning data + * \param[in] tuningData The YamlObject representing the tuning data + * + * This function parses yaml tuning data for the common Lux module. It requires + * reference exposure time, analogue gain, digital gain, and lux values. + * + * \code{.unparsed} + * algorithms: + * - Lux: + * referenceExposureTime: 10000 + * referenceAnalogueGain: 4.0 + * referenceDigitalGain: 1.0 + * referenceY: 0.1831 + * referenceLux: 1000 + * \endcode + * + * \return 0 on success or a negative error code + */ +int Lux::parseTuningData(const YamlObject &tuningData) +{ + auto value = tuningData["referenceExposureTime"].get<double>(); + if (!value) { + LOG(Lux, Error) << "Missing tuning parameter: " + << "'referenceExposureTime'"; + return -EINVAL; + } + referenceExposureTime_ = *value * 1.0us; + + value = tuningData["referenceAnalogueGain"].get<double>(); + if (!value) { + LOG(Lux, Error) << "Missing tuning parameter: " + << "'referenceAnalogueGain'"; + return -EINVAL; + } + referenceAnalogueGain_ = *value; + + value = tuningData["referenceDigitalGain"].get<double>(); + if (!value) { + LOG(Lux, Error) << "Missing tuning parameter: " + << "'referenceDigitalGain'"; + return -EINVAL; + } + referenceDigitalGain_ = *value; + + value = tuningData["referenceY"].get<double>(); + if (!value) { + LOG(Lux, Error) << "Missing tuning parameter: " + << "'referenceY'"; + return -EINVAL; + } + referenceY_ = *value; + + value = tuningData["referenceLux"].get<double>(); + if (!value) { + LOG(Lux, Error) << "Missing tuning parameter: " + << "'referenceLux'"; + return -EINVAL; + } + referenceLux_ = *value; + + return 0; +} + +/** + * \brief Estimate lux given runtime values + * \param[in] exposureTime Exposure time applied to the frame + * \param[in] aGain Analogue gain applied to the frame + * \param[in] dGain Digital gain applied to the frame + * \param[in] yHist Histogram from the ISP statistics + * + * Estimate the lux given the exposure time, gain, and histogram. + * + * \return Estimated lux value + */ +double Lux::estimateLux(utils::Duration exposureTime, + double aGain, double dGain, + const Histogram &yHist) const +{ + double currentY = yHist.interQuantileMean(0, 1); + double exposureTimeRatio = referenceExposureTime_ / exposureTime; + double aGainRatio = referenceAnalogueGain_ / aGain; + double dGainRatio = referenceDigitalGain_ / dGain; + double yRatio = (currentY / yHist.bins()) / referenceY_; + + double estimatedLux = exposureTimeRatio * aGainRatio * dGainRatio * + yRatio * referenceLux_; + + LOG(Lux, Debug) << "Estimated lux " << estimatedLux; + return estimatedLux; +} + +} /* namespace ipa */ + +} /* namespace libcamera */ diff --git a/src/ipa/libipa/lux.h b/src/ipa/libipa/lux.h new file mode 100644 index 00000000..d95bcdaf --- /dev/null +++ b/src/ipa/libipa/lux.h @@ -0,0 +1,41 @@ +/* SPDX-License-Identifier: BSD-2-Clause */ +/* + * Copyright (C) 2019, Raspberry Pi Ltd + * Copyright (C) 2024, Paul Elder <paul.elder@ideasonboard.com> + * + * Helper class that implements lux estimation + */ + +#pragma once + +#include <libcamera/base/utils.h> + +namespace libcamera { + +class YamlObject; + +namespace ipa { + +class Histogram; + +class Lux +{ +public: + Lux(); + + int parseTuningData(const YamlObject &tuningData); + double estimateLux(utils::Duration exposureTime, + double aGain, double dGain, + const Histogram &yHist) const; + +private: + utils::Duration referenceExposureTime_; + double referenceAnalogueGain_; + double referenceDigitalGain_; + double referenceY_; + double referenceLux_; +}; + +} /* namespace ipa */ + +} /* namespace libcamera */ diff --git a/src/ipa/libipa/meson.build b/src/ipa/libipa/meson.build index 016b8e0e..660be940 100644 --- a/src/ipa/libipa/meson.build +++ b/src/ipa/libipa/meson.build @@ -1,19 +1,41 @@ # SPDX-License-Identifier: CC0-1.0 libipa_headers = files([ + 'agc_mean_luminance.h', 'algorithm.h', + 'awb_bayes.h', + 'awb_grey.h', + 'awb.h', 'camera_sensor_helper.h', + 'colours.h', + 'exposure_mode_helper.h', 'fc_queue.h', + 'fixedpoint.h', 'histogram.h', + 'interpolator.h', + 'lsc_polynomial.h', + 'lux.h', 'module.h', + 'pwl.h', ]) libipa_sources = files([ + 'agc_mean_luminance.cpp', 'algorithm.cpp', + 'awb_bayes.cpp', + 'awb_grey.cpp', + 'awb.cpp', 'camera_sensor_helper.cpp', + 'colours.cpp', + 'exposure_mode_helper.cpp', 'fc_queue.cpp', + 'fixedpoint.cpp', 'histogram.cpp', + 'interpolator.cpp', + 'lsc_polynomial.cpp', + 'lux.cpp', 'module.cpp', + 'pwl.cpp', ]) libipa_includes = include_directories('..') @@ -21,3 +43,7 @@ libipa_includes = include_directories('..') libipa = static_library('ipa', [libipa_sources, libipa_headers], include_directories : ipa_includes, dependencies : libcamera_private) + +libipa_dep = declare_dependency(sources : libipa_headers, + include_directories : libipa_includes, + link_with : libipa) diff --git a/src/ipa/libipa/module.cpp b/src/ipa/libipa/module.cpp index ee01f12a..64ca9141 100644 --- a/src/ipa/libipa/module.cpp +++ b/src/ipa/libipa/module.cpp @@ -2,7 +2,7 @@ /* * Copyright (C) 2022, Ideas On Board * - * module.cpp - IPA Module + * IPA Module */ #include "module.h" diff --git a/src/ipa/libipa/module.h b/src/ipa/libipa/module.h index 4149a353..0fb51916 100644 --- a/src/ipa/libipa/module.h +++ b/src/ipa/libipa/module.h @@ -2,7 +2,7 @@ /* * Copyright (C) 2022, Ideas On Board * - * module.h - IPA module + * IPA module */ #pragma once diff --git a/src/ipa/libipa/pwl.cpp b/src/ipa/libipa/pwl.cpp new file mode 100644 index 00000000..3fa005ba --- /dev/null +++ b/src/ipa/libipa/pwl.cpp @@ -0,0 +1,462 @@ +/* SPDX-License-Identifier: BSD-2-Clause */ +/* + * Copyright (C) 2019, Raspberry Pi Ltd + * Copyright (C) 2024, Ideas on Board Oy + * + * Piecewise linear functions + */ + +#include "pwl.h" + +#include <cmath> +#include <sstream> + +/** + * \file pwl.h + * \brief Piecewise linear functions + */ + +namespace libcamera { + +namespace ipa { + +/** + * \class Pwl + * \brief Describe a univariate piecewise linear function in two-dimensional + * real space + * + * A piecewise linear function is a univariate function that maps reals to + * reals, and it is composed of multiple straight-line segments. + * + * While a mathematical piecewise linear function would usually be defined by + * a list of linear functions and for which values of the domain they apply, + * this Pwl class is instead defined by a list of points at which these line + * segments intersect. These intersecting points are known as knots. + * + * https://en.wikipedia.org/wiki/Piecewise_linear_function + * + * A consequence of the Pwl class being defined by knots instead of linear + * functions is that the values of the piecewise linear function past the ends + * of the function are constants as opposed to linear functions. In a + * mathematical piecewise linear function that is defined by multiple linear + * functions, the ends of the function are also linear functions and hence grow + * to infinity (or negative infinity). However, since this Pwl class is defined + * by knots, the y-value of the leftmost and rightmost knots will hold for all + * x values to negative infinity and positive infinity, respectively. + */ + +/** + * \typedef Pwl::Point + * \brief Describe a point in two-dimensional real space + */ + +/** + * \class Pwl::Interval + * \brief Describe an interval in one-dimensional real space + */ + +/** + * \fn Pwl::Interval::Interval(double _start, double _end) + * \brief Construct an interval + * \param[in] _start Start of the interval + * \param[in] _end End of the interval + */ + +/** + * \fn Pwl::Interval::contains + * \brief Check if a given value falls within the interval + * \param[in] value Value to check + * \return True if the value falls within the interval, including its bounds, + * or false otherwise + */ + +/** + * \fn Pwl::Interval::clamp + * \brief Clamp a value such that it is within the interval + * \param[in] value Value to clamp + * \return The clamped value + */ + +/** + * \fn Pwl::Interval::length + * \brief Compute the length of the interval + * \return The length of the interval + */ + +/** + * \var Pwl::Interval::start + * \brief Start of the interval + */ + +/** + * \var Pwl::Interval::end + * \brief End of the interval + */ + +/** + * \brief Construct an empty piecewise linear function + */ +Pwl::Pwl() +{ +} + +/** + * \brief Construct a piecewise linear function from a list of 2D points + * \param[in] points Vector of points from which to construct the piecewise + * linear function + * + * \a points must be in ascending order of x-value. + */ +Pwl::Pwl(const std::vector<Point> &points) + : points_(points) +{ +} + +/** + * \copydoc Pwl::Pwl(const std::vector<Point> &points) + * + * The contents of the \a points vector is moved to the newly constructed Pwl + * instance. + */ +Pwl::Pwl(std::vector<Point> &&points) + : points_(std::move(points)) +{ +} + +/** + * \brief Append a point to the end of the piecewise linear function + * \param[in] x x-coordinate of the point to add to the piecewise linear function + * \param[in] y y-coordinate of the point to add to the piecewise linear function + * \param[in] eps Epsilon for the minimum x distance between points (optional) + * + * The point's x-coordinate must be greater than the x-coordinate of the last + * (= greatest) point already in the piecewise linear function. + */ +void Pwl::append(double x, double y, const double eps) +{ + if (points_.empty() || points_.back().x() + eps < x) + points_.push_back(Point({ x, y })); +} + +/** + * \brief Prepend a point to the beginning of the piecewise linear function + * \param[in] x x-coordinate of the point to add to the piecewise linear function + * \param[in] y y-coordinate of the point to add to the piecewise linear function + * \param[in] eps Epsilon for the minimum x distance between points (optional) + * + * The point's x-coordinate must be less than the x-coordinate of the first + * (= smallest) point already in the piecewise linear function. + */ +void Pwl::prepend(double x, double y, const double eps) +{ + if (points_.empty() || points_.front().x() - eps > x) + points_.insert(points_.begin(), Point({ x, y })); +} + +/** + * \fn Pwl::empty() const + * \brief Check if the piecewise linear function is empty + * \return True if there are no points in the function, false otherwise + */ + +/** + * \fn Pwl::clear() + * \brief Clear the piecewise linear function + */ + +/** + * \fn Pwl::size() const + * \brief Retrieve the number of points in the piecewise linear function + * \return The number of points in the piecewise linear function + */ + +/** + * \brief Get the domain of the piecewise linear function + * \return An interval representing the domain + */ +Pwl::Interval Pwl::domain() const +{ + return Interval(points_[0].x(), points_[points_.size() - 1].x()); +} + +/** + * \brief Get the range of the piecewise linear function + * \return An interval representing the range + */ +Pwl::Interval Pwl::range() const +{ + double lo = points_[0].y(), hi = lo; + for (auto &p : points_) + lo = std::min(lo, p.y()), hi = std::max(hi, p.y()); + return Interval(lo, hi); +} + +/** + * \brief Evaluate the piecewise linear function + * \param[in] x The x value to input into the function + * \param[inout] span Initial guess for span + * \param[in] updateSpan Set to true to update span + * + * Evaluate Pwl, optionally supplying an initial guess for the + * "span". The "span" may be optionally be updated. If you want to know + * the "span" value but don't have an initial guess you can set it to + * -1. + * + * \return The result of evaluating the piecewise linear function at position \a x + */ +double Pwl::eval(double x, int *span, bool updateSpan) const +{ + int index = findSpan(x, span && *span != -1 + ? *span + : points_.size() / 2 - 1); + if (span && updateSpan) + *span = index; + return points_[index].y() + + (x - points_[index].x()) * (points_[index + 1].y() - points_[index].y()) / + (points_[index + 1].x() - points_[index].x()); +} + +int Pwl::findSpan(double x, int span) const +{ + /* + * Pwls are generally small, so linear search may well be faster than + * binary, though could review this if large Pwls start turning up. + */ + int lastSpan = points_.size() - 2; + /* + * some algorithms may call us with span pointing directly at the last + * control point + */ + span = std::max(0, std::min(lastSpan, span)); + while (span < lastSpan && x >= points_[span + 1].x()) + span++; + while (span && x < points_[span].x()) + span--; + return span; +} + +/** + * \brief Compute the inverse function + * \param[in] eps Epsilon for the minimum x distance between points (optional) + * + * The output includes whether the resulting inverse function is a proper + * (true) inverse, or only a best effort (e.g. input was non-monotonic). + * + * \return A pair of the inverse piecewise linear function, and whether or not + * the result is a proper/true inverse + */ +std::pair<Pwl, bool> Pwl::inverse(const double eps) const +{ + bool appended = false, prepended = false, neither = false; + Pwl inverse; + + for (Point const &p : points_) { + if (inverse.empty()) { + inverse.append(p.y(), p.x(), eps); + } else if (std::abs(inverse.points_.back().x() - p.y()) <= eps || + std::abs(inverse.points_.front().x() - p.y()) <= eps) { + /* do nothing */; + } else if (p.y() > inverse.points_.back().x()) { + inverse.append(p.y(), p.x(), eps); + appended = true; + } else if (p.y() < inverse.points_.front().x()) { + inverse.prepend(p.y(), p.x(), eps); + prepended = true; + } else { + neither = true; + } + } + + /* + * This is not a proper inverse if we found ourselves putting points + * onto both ends of the inverse, or if there were points that couldn't + * go on either. + */ + bool trueInverse = !(neither || (appended && prepended)); + + return { inverse, trueInverse }; +} + +/** + * \brief Compose two piecewise linear functions together + * \param[in] other The "other" piecewise linear function + * \param[in] eps Epsilon for the minimum x distance between points (optional) + * + * The "this" function is done first, and "other" after. + * + * \return The composed piecewise linear function + */ +Pwl Pwl::compose(Pwl const &other, const double eps) const +{ + double thisX = points_[0].x(), thisY = points_[0].y(); + int thisSpan = 0, otherSpan = other.findSpan(thisY, 0); + Pwl result({ Point({ thisX, other.eval(thisY, &otherSpan, false) }) }); + + while (thisSpan != (int)points_.size() - 1) { + double dx = points_[thisSpan + 1].x() - points_[thisSpan].x(), + dy = points_[thisSpan + 1].y() - points_[thisSpan].y(); + if (std::abs(dy) > eps && + otherSpan + 1 < (int)other.points_.size() && + points_[thisSpan + 1].y() >= other.points_[otherSpan + 1].x() + eps) { + /* + * next control point in result will be where this + * function's y reaches the next span in other + */ + thisX = points_[thisSpan].x() + + (other.points_[otherSpan + 1].x() - + points_[thisSpan].y()) * + dx / dy; + thisY = other.points_[++otherSpan].x(); + } else if (std::abs(dy) > eps && otherSpan > 0 && + points_[thisSpan + 1].y() <= + other.points_[otherSpan - 1].x() - eps) { + /* + * next control point in result will be where this + * function's y reaches the previous span in other + */ + thisX = points_[thisSpan].x() + + (other.points_[otherSpan + 1].x() - + points_[thisSpan].y()) * + dx / dy; + thisY = other.points_[--otherSpan].x(); + } else { + /* we stay in the same span in other */ + thisSpan++; + thisX = points_[thisSpan].x(), + thisY = points_[thisSpan].y(); + } + result.append(thisX, other.eval(thisY, &otherSpan, false), + eps); + } + return result; +} + +/** + * \brief Apply function to (x, y) values at every control point + * \param[in] f Function to be applied + */ +void Pwl::map(std::function<void(double x, double y)> f) const +{ + for (auto &pt : points_) + f(pt.x(), pt.y()); +} + +/** + * \brief Apply function to (x, y0, y1) values wherever either Pwl has a + * control point. + * \param[in] pwl0 First piecewise linear function + * \param[in] pwl1 Second piecewise linear function + * \param[in] f Function to be applied + * + * This applies the function \a f to every parameter (x, y0, y1), where x is + * the combined list of x-values from \a pwl0 and \a pwl1, y0 is the y-value + * for the given x in \a pwl0, and y1 is the y-value for the same x in \a pwl1. + */ +void Pwl::map2(Pwl const &pwl0, Pwl const &pwl1, + std::function<void(double x, double y0, double y1)> f) +{ + int span0 = 0, span1 = 0; + double x = std::min(pwl0.points_[0].x(), pwl1.points_[0].x()); + f(x, pwl0.eval(x, &span0, false), pwl1.eval(x, &span1, false)); + + while (span0 < (int)pwl0.points_.size() - 1 || + span1 < (int)pwl1.points_.size() - 1) { + if (span0 == (int)pwl0.points_.size() - 1) + x = pwl1.points_[++span1].x(); + else if (span1 == (int)pwl1.points_.size() - 1) + x = pwl0.points_[++span0].x(); + else if (pwl0.points_[span0 + 1].x() > pwl1.points_[span1 + 1].x()) + x = pwl1.points_[++span1].x(); + else + x = pwl0.points_[++span0].x(); + f(x, pwl0.eval(x, &span0, false), pwl1.eval(x, &span1, false)); + } +} + +/** + * \brief Combine two Pwls + * \param[in] pwl0 First piecewise linear function + * \param[in] pwl1 Second piecewise linear function + * \param[in] f Function to be applied + * \param[in] eps Epsilon for the minimum x distance between points (optional) + * + * Create a new Pwl where the y values are given by running \a f wherever + * either pwl has a knot. + * + * \return The combined pwl + */ +Pwl Pwl::combine(Pwl const &pwl0, Pwl const &pwl1, + std::function<double(double x, double y0, double y1)> f, + const double eps) +{ + Pwl result; + map2(pwl0, pwl1, [&](double x, double y0, double y1) { + result.append(x, f(x, y0, y1), eps); + }); + return result; +} + +/** + * \brief Multiply the piecewise linear function + * \param[in] d Scalar multiplier to multiply the function by + * \return This function, after it has been multiplied by \a d + */ +Pwl &Pwl::operator*=(double d) +{ + for (auto &pt : points_) + pt[1] *= d; + return *this; +} + +/** + * \brief Assemble and return a string describing the piecewise linear function + * \return A string describing the piecewise linear function + */ +std::string Pwl::toString() const +{ + std::stringstream ss; + ss << "Pwl { "; + for (auto &p : points_) + ss << "(" << p.x() << ", " << p.y() << ") "; + ss << "}"; + return ss.str(); +} + +} /* namespace ipa */ + +#ifndef __DOXYGEN__ +/* + * The YAML data shall be a list of numerical values with an even number of + * elements. They are parsed in pairs into x and y points in the piecewise + * linear function, and added in order. x must be monotonically increasing. + */ +template<> +std::optional<ipa::Pwl> +YamlObject::Getter<ipa::Pwl>::get(const YamlObject &obj) const +{ + if (!obj.size() || obj.size() % 2) + return std::nullopt; + + ipa::Pwl pwl; + + const auto &list = obj.asList(); + + for (auto it = list.begin(); it != list.end(); it++) { + auto x = it->get<double>(); + if (!x) + return std::nullopt; + auto y = (++it)->get<double>(); + if (!y) + return std::nullopt; + + pwl.append(*x, *y); + } + + if (pwl.size() != obj.size() / 2) + return std::nullopt; + + return pwl; +} +#endif /* __DOXYGEN__ */ + +} /* namespace libcamera */ diff --git a/src/ipa/libipa/pwl.h b/src/ipa/libipa/pwl.h new file mode 100644 index 00000000..c1496c30 --- /dev/null +++ b/src/ipa/libipa/pwl.h @@ -0,0 +1,86 @@ +/* SPDX-License-Identifier: BSD-2-Clause */ +/* + * Copyright (C) 2019, Raspberry Pi Ltd + * + * Piecewise linear functions interface + */ +#pragma once + +#include <algorithm> +#include <functional> +#include <string> +#include <utility> +#include <vector> + +#include "libcamera/internal/vector.h" + +namespace libcamera { + +namespace ipa { + +class Pwl +{ +public: + using Point = Vector<double, 2>; + + struct Interval { + Interval(double _start, double _end) + : start(_start), end(_end) {} + + bool contains(double value) + { + return value >= start && value <= end; + } + + double clamp(double value) + { + return std::clamp(value, start, end); + } + + double length() const { return end - start; } + + double start, end; + }; + + Pwl(); + Pwl(const std::vector<Point> &points); + Pwl(std::vector<Point> &&points); + + void append(double x, double y, double eps = 1e-6); + + bool empty() const { return points_.empty(); } + void clear() { points_.clear(); } + size_t size() const { return points_.size(); } + + Interval domain() const; + Interval range() const; + + double eval(double x, int *span = nullptr, + bool updateSpan = true) const; + + std::pair<Pwl, bool> inverse(double eps = 1e-6) const; + Pwl compose(const Pwl &other, double eps = 1e-6) const; + + void map(std::function<void(double x, double y)> f) const; + + static Pwl + combine(const Pwl &pwl0, const Pwl &pwl1, + std::function<double(double x, double y0, double y1)> f, + double eps = 1e-6); + + Pwl &operator*=(double d); + + std::string toString() const; + +private: + static void map2(const Pwl &pwl0, const Pwl &pwl1, + std::function<void(double x, double y0, double y1)> f); + void prepend(double x, double y, double eps = 1e-6); + int findSpan(double x, int span) const; + + std::vector<Point> points_; +}; + +} /* namespace ipa */ + +} /* namespace libcamera */ diff --git a/src/ipa/mali-c55/algorithms/agc.cpp b/src/ipa/mali-c55/algorithms/agc.cpp new file mode 100644 index 00000000..70667db3 --- /dev/null +++ b/src/ipa/mali-c55/algorithms/agc.cpp @@ -0,0 +1,410 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +/* + * Copyright (C) 2024, Ideas On Board Oy + * + * agc.cpp - AGC/AEC mean-based control algorithm + */ + +#include "agc.h" + +#include <cmath> + +#include <libcamera/base/log.h> +#include <libcamera/base/utils.h> + +#include <libcamera/control_ids.h> +#include <libcamera/property_ids.h> + +#include "libipa/colours.h" +#include "libipa/fixedpoint.h" + +namespace libcamera { + +using namespace std::literals::chrono_literals; + +namespace ipa::mali_c55::algorithms { + +LOG_DEFINE_CATEGORY(MaliC55Agc) + +/* + * Number of histogram bins. This is only true for the specific configuration we + * set to the ISP; 4 separate histograms of 256 bins each. If that configuration + * ever changes then this constant will need updating. + */ +static constexpr unsigned int kNumHistogramBins = 256; + +/* + * The Mali-C55 ISP has a digital gain block which allows setting gain in Q5.8 + * format, a range of 0.0 to (very nearly) 32.0. We clamp from 1.0 to the actual + * max value which is 8191 * 2^-8. + */ +static constexpr double kMinDigitalGain = 1.0; +static constexpr double kMaxDigitalGain = 31.99609375; + +uint32_t AgcStatistics::decodeBinValue(uint16_t binVal) +{ + int exponent = (binVal & 0xf000) >> 12; + int mantissa = binVal & 0xfff; + + if (!exponent) + return mantissa * 2; + else + return (mantissa + 4096) * std::pow(2, exponent); +} + +/* + * We configure the ISP to give us 4 histograms of 256 bins each, with + * a single histogram per colour channel (R/Gr/Gb/B). The memory space + * containing the data is a single block containing all 4 histograms + * with the position of each colour's histogram within it dependent on + * the bayer pattern of the data input to the ISP. + * + * NOTE: The validity of this function depends on the parameters we have + * configured. With different skip/offset x, y values not all of the + * colour channels would be populated, and they may not be in the same + * planes as calculated here. + */ +int AgcStatistics::setBayerOrderIndices(BayerFormat::Order bayerOrder) +{ + switch (bayerOrder) { + case BayerFormat::Order::RGGB: + rIndex_ = 0; + grIndex_ = 1; + gbIndex_ = 2; + bIndex_ = 3; + break; + case BayerFormat::Order::GRBG: + grIndex_ = 0; + rIndex_ = 1; + bIndex_ = 2; + gbIndex_ = 3; + break; + case BayerFormat::Order::GBRG: + gbIndex_ = 0; + bIndex_ = 1; + rIndex_ = 2; + grIndex_ = 3; + break; + case BayerFormat::Order::BGGR: + bIndex_ = 0; + gbIndex_ = 1; + grIndex_ = 2; + rIndex_ = 3; + break; + default: + LOG(MaliC55Agc, Error) + << "Invalid bayer format " << bayerOrder; + return -EINVAL; + } + + return 0; +} + +void AgcStatistics::parseStatistics(const mali_c55_stats_buffer *stats) +{ + uint32_t r[256], g[256], b[256], y[256]; + + /* + * We need to decode the bin values for each histogram from their 16-bit + * compressed values to a 32-bit value. We also take the average of the + * Gr/Gb values into a single green histogram. + */ + for (unsigned int i = 0; i < 256; i++) { + r[i] = decodeBinValue(stats->ae_1024bin_hist.bins[i + (256 * rIndex_)]); + g[i] = (decodeBinValue(stats->ae_1024bin_hist.bins[i + (256 * grIndex_)]) + + decodeBinValue(stats->ae_1024bin_hist.bins[i + (256 * gbIndex_)])) / 2; + b[i] = decodeBinValue(stats->ae_1024bin_hist.bins[i + (256 * bIndex_)]); + + y[i] = rec601LuminanceFromRGB({ { static_cast<double>(r[i]), + static_cast<double>(g[i]), + static_cast<double>(b[i]) } }); + } + + rHist = Histogram(Span<uint32_t>(r, kNumHistogramBins)); + gHist = Histogram(Span<uint32_t>(g, kNumHistogramBins)); + bHist = Histogram(Span<uint32_t>(b, kNumHistogramBins)); + yHist = Histogram(Span<uint32_t>(y, kNumHistogramBins)); +} + +Agc::Agc() + : AgcMeanLuminance() +{ +} + +int Agc::init(IPAContext &context, const YamlObject &tuningData) +{ + int ret = parseTuningData(tuningData); + if (ret) + return ret; + + context.ctrlMap[&controls::AeEnable] = ControlInfo(false, true); + context.ctrlMap[&controls::DigitalGain] = ControlInfo( + static_cast<float>(kMinDigitalGain), + static_cast<float>(kMaxDigitalGain), + static_cast<float>(kMinDigitalGain) + ); + context.ctrlMap.merge(controls()); + + return 0; +} + +int Agc::configure(IPAContext &context, + [[maybe_unused]] const IPACameraSensorInfo &configInfo) +{ + int ret = statistics_.setBayerOrderIndices(context.configuration.sensor.bayerOrder); + if (ret) + return ret; + + /* + * Defaults; we use whatever the sensor's default exposure is and the + * minimum analogue gain. AEGC is _active_ by default. + */ + context.activeState.agc.autoEnabled = true; + context.activeState.agc.automatic.sensorGain = context.configuration.agc.minAnalogueGain; + context.activeState.agc.automatic.exposure = context.configuration.agc.defaultExposure; + context.activeState.agc.automatic.ispGain = kMinDigitalGain; + context.activeState.agc.manual.sensorGain = context.configuration.agc.minAnalogueGain; + context.activeState.agc.manual.exposure = context.configuration.agc.defaultExposure; + context.activeState.agc.manual.ispGain = kMinDigitalGain; + context.activeState.agc.constraintMode = constraintModes().begin()->first; + context.activeState.agc.exposureMode = exposureModeHelpers().begin()->first; + + /* \todo Run this again when FrameDurationLimits is passed in */ + setLimits(context.configuration.agc.minShutterSpeed, + context.configuration.agc.maxShutterSpeed, + context.configuration.agc.minAnalogueGain, + context.configuration.agc.maxAnalogueGain); + + resetFrameCount(); + + return 0; +} + +void Agc::queueRequest(IPAContext &context, const uint32_t frame, + [[maybe_unused]] IPAFrameContext &frameContext, + const ControlList &controls) +{ + auto &agc = context.activeState.agc; + + const auto &constraintMode = controls.get(controls::AeConstraintMode); + agc.constraintMode = constraintMode.value_or(agc.constraintMode); + + const auto &exposureMode = controls.get(controls::AeExposureMode); + agc.exposureMode = exposureMode.value_or(agc.exposureMode); + + const auto &agcEnable = controls.get(controls::AeEnable); + if (agcEnable && *agcEnable != agc.autoEnabled) { + agc.autoEnabled = *agcEnable; + + LOG(MaliC55Agc, Info) + << (agc.autoEnabled ? "Enabling" : "Disabling") + << " AGC"; + } + + /* + * If the automatic exposure and gain is enabled we have no further work + * to do here... + */ + if (agc.autoEnabled) + return; + + /* + * ...otherwise we need to look for exposure and gain controls and use + * those to set the activeState. + */ + const auto &exposure = controls.get(controls::ExposureTime); + if (exposure) { + agc.manual.exposure = *exposure * 1.0us / context.configuration.sensor.lineDuration; + + LOG(MaliC55Agc, Debug) + << "Exposure set to " << agc.manual.exposure + << " on request sequence " << frame; + } + + const auto &analogueGain = controls.get(controls::AnalogueGain); + if (analogueGain) { + agc.manual.sensorGain = *analogueGain; + + LOG(MaliC55Agc, Debug) + << "Analogue gain set to " << agc.manual.sensorGain + << " on request sequence " << frame; + } + + const auto &digitalGain = controls.get(controls::DigitalGain); + if (digitalGain) { + agc.manual.ispGain = *digitalGain; + + LOG(MaliC55Agc, Debug) + << "Digital gain set to " << agc.manual.ispGain + << " on request sequence " << frame; + } +} + +size_t Agc::fillGainParamBlock(IPAContext &context, IPAFrameContext &frameContext, + mali_c55_params_block block) +{ + IPAActiveState &activeState = context.activeState; + double gain; + + if (activeState.agc.autoEnabled) + gain = activeState.agc.automatic.ispGain; + else + gain = activeState.agc.manual.ispGain; + + block.header->type = MALI_C55_PARAM_BLOCK_DIGITAL_GAIN; + block.header->flags = MALI_C55_PARAM_BLOCK_FL_NONE; + block.header->size = sizeof(struct mali_c55_params_digital_gain); + + block.digital_gain->gain = floatingToFixedPoint<5, 8, uint16_t, double>(gain); + frameContext.agc.ispGain = gain; + + return block.header->size; +} + +size_t Agc::fillParamsBuffer(mali_c55_params_block block, + enum mali_c55_param_block_type type) +{ + block.header->type = type; + block.header->flags = MALI_C55_PARAM_BLOCK_FL_NONE; + block.header->size = sizeof(struct mali_c55_params_aexp_hist); + + /* Collect every 3rd pixel horizontally */ + block.aexp_hist->skip_x = 1; + /* Start from first column */ + block.aexp_hist->offset_x = 0; + /* Collect every pixel vertically */ + block.aexp_hist->skip_y = 0; + /* Start from the first row */ + block.aexp_hist->offset_y = 0; + /* 1x scaling (i.e. none) */ + block.aexp_hist->scale_bottom = 0; + block.aexp_hist->scale_top = 0; + /* Collect all Bayer planes into 4 separate histograms */ + block.aexp_hist->plane_mode = 1; + /* Tap the data immediately after the digital gain block */ + block.aexp_hist->tap_point = MALI_C55_AEXP_HIST_TAP_FS; + + return block.header->size; +} + +size_t Agc::fillWeightsArrayBuffer(mali_c55_params_block block, + enum mali_c55_param_block_type type) +{ + block.header->type = type; + block.header->flags = MALI_C55_PARAM_BLOCK_FL_NONE; + block.header->size = sizeof(struct mali_c55_params_aexp_weights); + + /* We use every zone - a 15x15 grid */ + block.aexp_weights->nodes_used_horiz = 15; + block.aexp_weights->nodes_used_vert = 15; + + /* + * We uniformly weight the zones to 1 - this results in the collected + * histograms containing a true pixel count, which we can then use to + * approximate colour channel averages for the image. + */ + Span<uint8_t> weights{ + block.aexp_weights->zone_weights, + MALI_C55_MAX_ZONES + }; + std::fill(weights.begin(), weights.end(), 1); + + return block.header->size; +} + +void Agc::prepare(IPAContext &context, const uint32_t frame, + IPAFrameContext &frameContext, mali_c55_params_buffer *params) +{ + mali_c55_params_block block; + + block.data = ¶ms->data[params->total_size]; + params->total_size += fillGainParamBlock(context, frameContext, block); + + if (frame > 0) + return; + + block.data = ¶ms->data[params->total_size]; + params->total_size += fillParamsBuffer(block, + MALI_C55_PARAM_BLOCK_AEXP_HIST); + + block.data = ¶ms->data[params->total_size]; + params->total_size += fillWeightsArrayBuffer(block, + MALI_C55_PARAM_BLOCK_AEXP_HIST_WEIGHTS); + + block.data = ¶ms->data[params->total_size]; + params->total_size += fillParamsBuffer(block, + MALI_C55_PARAM_BLOCK_AEXP_IHIST); + + block.data = ¶ms->data[params->total_size]; + params->total_size += fillWeightsArrayBuffer(block, + MALI_C55_PARAM_BLOCK_AEXP_IHIST_WEIGHTS); +} + +double Agc::estimateLuminance(const double gain) const +{ + double rAvg = statistics_.rHist.interQuantileMean(0, 1) * gain; + double gAvg = statistics_.gHist.interQuantileMean(0, 1) * gain; + double bAvg = statistics_.bHist.interQuantileMean(0, 1) * gain; + double yAvg = rec601LuminanceFromRGB({ { rAvg, gAvg, bAvg } }); + + return yAvg / kNumHistogramBins; +} + +void Agc::process(IPAContext &context, + [[maybe_unused]] const uint32_t frame, + IPAFrameContext &frameContext, + const mali_c55_stats_buffer *stats, + [[maybe_unused]] ControlList &metadata) +{ + IPASessionConfiguration &configuration = context.configuration; + IPAActiveState &activeState = context.activeState; + + if (!stats) { + LOG(MaliC55Agc, Error) << "No statistics buffer passed to Agc"; + return; + } + + statistics_.parseStatistics(stats); + context.activeState.agc.temperatureK = estimateCCT({ { statistics_.rHist.interQuantileMean(0, 1), + statistics_.gHist.interQuantileMean(0, 1), + statistics_.bHist.interQuantileMean(0, 1) } }); + + /* + * The Agc algorithm needs to know the effective exposure value that was + * applied to the sensor when the statistics were collected. + */ + uint32_t exposure = frameContext.agc.exposure; + double analogueGain = frameContext.agc.sensorGain; + double digitalGain = frameContext.agc.ispGain; + double totalGain = analogueGain * digitalGain; + utils::Duration currentShutter = exposure * configuration.sensor.lineDuration; + utils::Duration effectiveExposureValue = currentShutter * totalGain; + + utils::Duration shutterTime; + double aGain, dGain; + std::tie(shutterTime, aGain, dGain) = + calculateNewEv(activeState.agc.constraintMode, + activeState.agc.exposureMode, statistics_.yHist, + effectiveExposureValue); + + dGain = std::clamp(dGain, kMinDigitalGain, kMaxDigitalGain); + + LOG(MaliC55Agc, Debug) + << "Divided up shutter, analogue gain and digital gain are " + << shutterTime << ", " << aGain << " and " << dGain; + + activeState.agc.automatic.exposure = shutterTime / configuration.sensor.lineDuration; + activeState.agc.automatic.sensorGain = aGain; + activeState.agc.automatic.ispGain = dGain; + + metadata.set(controls::ExposureTime, currentShutter.get<std::micro>()); + metadata.set(controls::AnalogueGain, frameContext.agc.sensorGain); + metadata.set(controls::DigitalGain, frameContext.agc.ispGain); + metadata.set(controls::ColourTemperature, context.activeState.agc.temperatureK); +} + +REGISTER_IPA_ALGORITHM(Agc, "Agc") + +} /* namespace ipa::mali_c55::algorithms */ + +} /* namespace libcamera */ diff --git a/src/ipa/mali-c55/algorithms/agc.h b/src/ipa/mali-c55/algorithms/agc.h new file mode 100644 index 00000000..c5c574e5 --- /dev/null +++ b/src/ipa/mali-c55/algorithms/agc.h @@ -0,0 +1,81 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +/* + * Copyright (C) 2023, Ideas on Board Oy + * + * agc.h - Mali C55 AGC/AEC mean-based control algorithm + */ + +#pragma once + +#include <libcamera/base/utils.h> + +#include "libcamera/internal/bayer_format.h" + +#include "libipa/agc_mean_luminance.h" +#include "libipa/histogram.h" + +#include "algorithm.h" +#include "ipa_context.h" + +namespace libcamera { + +namespace ipa::mali_c55::algorithms { + +class AgcStatistics +{ +public: + AgcStatistics() + { + } + + int setBayerOrderIndices(BayerFormat::Order bayerOrder); + uint32_t decodeBinValue(uint16_t binVal); + void parseStatistics(const mali_c55_stats_buffer *stats); + + Histogram rHist; + Histogram gHist; + Histogram bHist; + Histogram yHist; +private: + unsigned int rIndex_; + unsigned int grIndex_; + unsigned int gbIndex_; + unsigned int bIndex_; +}; + +class Agc : public Algorithm, public AgcMeanLuminance +{ +public: + Agc(); + ~Agc() = default; + + int init(IPAContext &context, const YamlObject &tuningData) override; + int configure(IPAContext &context, + const IPACameraSensorInfo &configInfo) override; + void queueRequest(IPAContext &context, const uint32_t frame, + IPAFrameContext &frameContext, + const ControlList &controls) override; + void prepare(IPAContext &context, const uint32_t frame, + IPAFrameContext &frameContext, + mali_c55_params_buffer *params) override; + void process(IPAContext &context, const uint32_t frame, + IPAFrameContext &frameContext, + const mali_c55_stats_buffer *stats, + ControlList &metadata) override; + +private: + double estimateLuminance(const double gain) const override; + size_t fillGainParamBlock(IPAContext &context, + IPAFrameContext &frameContext, + mali_c55_params_block block); + size_t fillParamsBuffer(mali_c55_params_block block, + enum mali_c55_param_block_type type); + size_t fillWeightsArrayBuffer(mali_c55_params_block block, + enum mali_c55_param_block_type type); + + AgcStatistics statistics_; +}; + +} /* namespace ipa::mali_c55::algorithms */ + +} /* namespace libcamera */ diff --git a/src/ipa/mali-c55/algorithms/algorithm.h b/src/ipa/mali-c55/algorithms/algorithm.h new file mode 100644 index 00000000..36a3bff0 --- /dev/null +++ b/src/ipa/mali-c55/algorithms/algorithm.h @@ -0,0 +1,39 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +/* + * Copyright (C) 2024, Ideas On Board + * + * algorithm.h - Mali-C55 control algorithm interface + */ + +#pragma once + +#include <linux/mali-c55-config.h> + +#include <libipa/algorithm.h> + +#include "module.h" + +namespace libcamera { + +namespace ipa::mali_c55 { + +class Algorithm : public libcamera::ipa::Algorithm<Module> +{ +}; + +union mali_c55_params_block { + struct mali_c55_params_block_header *header; + struct mali_c55_params_sensor_off_preshading *sensor_offs; + struct mali_c55_params_aexp_hist *aexp_hist; + struct mali_c55_params_aexp_weights *aexp_weights; + struct mali_c55_params_digital_gain *digital_gain; + struct mali_c55_params_awb_gains *awb_gains; + struct mali_c55_params_awb_config *awb_config; + struct mali_c55_params_mesh_shading_config *shading_config; + struct mali_c55_params_mesh_shading_selection *shading_selection; + __u8 *data; +}; + +} /* namespace ipa::mali_c55 */ + +} /* namespace libcamera */ diff --git a/src/ipa/mali-c55/algorithms/awb.cpp b/src/ipa/mali-c55/algorithms/awb.cpp new file mode 100644 index 00000000..050b191b --- /dev/null +++ b/src/ipa/mali-c55/algorithms/awb.cpp @@ -0,0 +1,230 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +/* + * Copyright (C) 2024, Ideas On Board Oy + * + * awb.cpp - Mali C55 grey world auto white balance algorithm + */ + +#include "awb.h" + +#include <cmath> + +#include <libcamera/base/log.h> +#include <libcamera/base/utils.h> + +#include <libcamera/control_ids.h> + +#include "libipa/fixedpoint.h" + +namespace libcamera { + +namespace ipa::mali_c55::algorithms { + +LOG_DEFINE_CATEGORY(MaliC55Awb) + +/* Number of frames at which we should run AWB at full speed */ +static constexpr uint32_t kNumStartupFrames = 4; + +Awb::Awb() +{ +} + +int Awb::configure([[maybe_unused]] IPAContext &context, + [[maybe_unused]] const IPACameraSensorInfo &configInfo) +{ + /* + * Initially we have no idea what the colour balance will be like, so + * for the first frame we will make no assumptions and leave the R/B + * channels unmodified. + */ + context.activeState.awb.rGain = 1.0; + context.activeState.awb.bGain = 1.0; + + return 0; +} + +size_t Awb::fillGainsParamBlock(mali_c55_params_block block, IPAContext &context, + IPAFrameContext &frameContext) +{ + block.header->type = MALI_C55_PARAM_BLOCK_AWB_GAINS; + block.header->flags = MALI_C55_PARAM_BLOCK_FL_NONE; + block.header->size = sizeof(struct mali_c55_params_awb_gains); + + double rGain = context.activeState.awb.rGain; + double bGain = context.activeState.awb.bGain; + + /* + * The gains here map as follows: + * gain00 = R + * gain01 = Gr + * gain10 = Gb + * gain11 = B + * + * This holds true regardless of the bayer order of the input data, as + * the mapping is done internally in the ISP. + */ + block.awb_gains->gain00 = floatingToFixedPoint<4, 8, uint16_t, double>(rGain); + block.awb_gains->gain01 = floatingToFixedPoint<4, 8, uint16_t, double>(1.0); + block.awb_gains->gain10 = floatingToFixedPoint<4, 8, uint16_t, double>(1.0); + block.awb_gains->gain11 = floatingToFixedPoint<4, 8, uint16_t, double>(bGain); + + frameContext.awb.rGain = rGain; + frameContext.awb.bGain = bGain; + + return sizeof(struct mali_c55_params_awb_gains); +} + +size_t Awb::fillConfigParamBlock(mali_c55_params_block block) +{ + block.header->type = MALI_C55_PARAM_BLOCK_AWB_CONFIG; + block.header->flags = MALI_C55_PARAM_BLOCK_FL_NONE; + block.header->size = sizeof(struct mali_c55_params_awb_config); + + /* Tap the stats after the purple fringe block */ + block.awb_config->tap_point = MALI_C55_AWB_STATS_TAP_PF; + + /* Get R/G and B/G ratios as statistics */ + block.awb_config->stats_mode = MALI_C55_AWB_MODE_RGBG; + + /* Default white level */ + block.awb_config->white_level = 1023; + + /* Default black level */ + block.awb_config->black_level = 0; + + /* + * By default pixels are included who's colour ratios are bounded in a + * region (on a cr ratio x cb ratio graph) defined by four points: + * (0.25, 0.25) + * (0.25, 1.99609375) + * (1.99609375, 1.99609375) + * (1.99609375, 0.25) + * + * The ratios themselves are stored in Q4.8 format. + * + * \todo should these perhaps be tunable? + */ + block.awb_config->cr_max = 511; + block.awb_config->cr_min = 64; + block.awb_config->cb_max = 511; + block.awb_config->cb_min = 64; + + /* We use the full 15x15 zoning scheme */ + block.awb_config->nodes_used_horiz = 15; + block.awb_config->nodes_used_vert = 15; + + /* + * We set the trimming boundaries equivalent to the main boundaries. In + * other words; no trimming. + */ + block.awb_config->cr_high = 511; + block.awb_config->cr_low = 64; + block.awb_config->cb_high = 511; + block.awb_config->cb_low = 64; + + return sizeof(struct mali_c55_params_awb_config); +} + +void Awb::prepare(IPAContext &context, const uint32_t frame, + IPAFrameContext &frameContext, mali_c55_params_buffer *params) +{ + mali_c55_params_block block; + block.data = ¶ms->data[params->total_size]; + + params->total_size += fillGainsParamBlock(block, context, frameContext); + + if (frame > 0) + return; + + block.data = ¶ms->data[params->total_size]; + params->total_size += fillConfigParamBlock(block); +} + +void Awb::process(IPAContext &context, const uint32_t frame, + IPAFrameContext &frameContext, const mali_c55_stats_buffer *stats, + [[maybe_unused]] ControlList &metadata) +{ + const struct mali_c55_awb_average_ratios *awb_ratios = stats->awb_ratios; + + /* + * The ISP produces average R:G and B:G ratios for zones. We take the + * average of all the zones with data and simply invert them to provide + * gain figures that we can apply to approximate a grey world. + */ + unsigned int counted_zones = 0; + double rgSum = 0, bgSum = 0; + + for (unsigned int i = 0; i < 225; i++) { + if (!awb_ratios[i].num_pixels) + continue; + + /* + * The statistics are in Q4.8 format, so we convert to double + * here. + */ + rgSum += fixedToFloatingPoint<4, 8, double, uint16_t>(awb_ratios[i].avg_rg_gr); + bgSum += fixedToFloatingPoint<4, 8, double, uint16_t>(awb_ratios[i].avg_bg_br); + counted_zones++; + } + + /* + * Sometimes the first frame's statistics have no valid pixels, in which + * case we'll just assume a grey world until they say otherwise. + */ + double rgAvg, bgAvg; + if (!counted_zones) { + rgAvg = 1.0; + bgAvg = 1.0; + } else { + rgAvg = rgSum / counted_zones; + bgAvg = bgSum / counted_zones; + } + + /* + * The statistics are generated _after_ white balancing is performed in + * the ISP. To get the true ratio we therefore have to adjust the stats + * figure by the gains that were applied when the statistics for this + * frame were generated. + */ + double rRatio = rgAvg / frameContext.awb.rGain; + double bRatio = bgAvg / frameContext.awb.bGain; + + /* + * And then we can simply invert the ratio to find the gain we should + * apply. + */ + double rGain = 1 / rRatio; + double bGain = 1 / bRatio; + + /* + * Running at full speed, this algorithm results in oscillations in the + * colour balance. To remove those we dampen the speed at which it makes + * changes in gain, unless we're in the startup phase in which case we + * want to fix the miscolouring as quickly as possible. + */ + double speed = frame < kNumStartupFrames ? 1.0 : 0.2; + rGain = speed * rGain + context.activeState.awb.rGain * (1.0 - speed); + bGain = speed * bGain + context.activeState.awb.bGain * (1.0 - speed); + + context.activeState.awb.rGain = rGain; + context.activeState.awb.bGain = bGain; + + metadata.set(controls::ColourGains, { + static_cast<float>(frameContext.awb.rGain), + static_cast<float>(frameContext.awb.bGain), + }); + + LOG(MaliC55Awb, Debug) << "For frame number " << frame << ": " + << "Average R/G Ratio: " << rgAvg + << ", Average B/G Ratio: " << bgAvg + << "\nrGain applied to this frame: " << frameContext.awb.rGain + << ", bGain applied to this frame: " << frameContext.awb.bGain + << "\nrGain to apply: " << context.activeState.awb.rGain + << ", bGain to apply: " << context.activeState.awb.bGain; +} + +REGISTER_IPA_ALGORITHM(Awb, "Awb") + +} /* namespace ipa::mali_c55::algorithms */ + +} /* namespace libcamera */ diff --git a/src/ipa/mali-c55/algorithms/awb.h b/src/ipa/mali-c55/algorithms/awb.h new file mode 100644 index 00000000..800c2e83 --- /dev/null +++ b/src/ipa/mali-c55/algorithms/awb.h @@ -0,0 +1,40 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +/* + * Copyright (C) 2024, Ideas on Board Oy + * + * awb.h - Mali C55 grey world auto white balance algorithm + */ + +#include "algorithm.h" +#include "ipa_context.h" + +namespace libcamera { + +namespace ipa::mali_c55::algorithms { + +class Awb : public Algorithm +{ +public: + Awb(); + ~Awb() = default; + + int configure(IPAContext &context, + const IPACameraSensorInfo &configInfo) override; + void prepare(IPAContext &context, const uint32_t frame, + IPAFrameContext &frameContext, + mali_c55_params_buffer *params) override; + void process(IPAContext &context, const uint32_t frame, + IPAFrameContext &frameContext, + const mali_c55_stats_buffer *stats, + ControlList &metadata) override; + +private: + size_t fillGainsParamBlock(mali_c55_params_block block, + IPAContext &context, + IPAFrameContext &frameContext); + size_t fillConfigParamBlock(mali_c55_params_block block); +}; + +} /* namespace ipa::mali_c55::algorithms */ + +} /* namespace libcamera */ diff --git a/src/ipa/mali-c55/algorithms/blc.cpp b/src/ipa/mali-c55/algorithms/blc.cpp new file mode 100644 index 00000000..2a54c86a --- /dev/null +++ b/src/ipa/mali-c55/algorithms/blc.cpp @@ -0,0 +1,140 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +/* + * Copyright (C) 2024, Ideas On Board + * + * Mali-C55 sensor offset (black level) correction + */ + +#include "blc.h" + +#include <libcamera/base/log.h> +#include <libcamera/control_ids.h> + +#include "libcamera/internal/yaml_parser.h" + +/** + * \file blc.h + */ + +namespace libcamera { + +namespace ipa::mali_c55::algorithms { + +/** + * \class BlackLevelCorrection + * \brief MaliC55 Black Level Correction control + */ + +LOG_DEFINE_CATEGORY(MaliC55Blc) + +BlackLevelCorrection::BlackLevelCorrection() + : tuningParameters_(false) +{ +} + +/** + * \copydoc libcamera::ipa::Algorithm::init + */ +int BlackLevelCorrection::init([[maybe_unused]] IPAContext &context, + const YamlObject &tuningData) +{ + offset00 = tuningData["offset00"].get<uint32_t>(0); + offset01 = tuningData["offset01"].get<uint32_t>(0); + offset10 = tuningData["offset10"].get<uint32_t>(0); + offset11 = tuningData["offset11"].get<uint32_t>(0); + + if (offset00 > kMaxOffset || offset01 > kMaxOffset || + offset10 > kMaxOffset || offset11 > kMaxOffset) { + LOG(MaliC55Blc, Error) << "Invalid black level offsets"; + return -EINVAL; + } + + tuningParameters_ = true; + + LOG(MaliC55Blc, Debug) + << "Black levels: 00 " << offset00 << ", 01 " << offset01 + << ", 10 " << offset10 << ", 11 " << offset11; + + return 0; +} + +/** + * \copydoc libcamera::ipa::Algorithm::configure + */ +int BlackLevelCorrection::configure(IPAContext &context, + [[maybe_unused]] const IPACameraSensorInfo &configInfo) +{ + /* + * If no Black Levels were passed in through tuning data then we could + * use the value from the CameraSensorHelper if one is available. + */ + if (context.configuration.sensor.blackLevel && + !(offset00 + offset01 + offset10 + offset11)) { + offset00 = context.configuration.sensor.blackLevel; + offset01 = context.configuration.sensor.blackLevel; + offset10 = context.configuration.sensor.blackLevel; + offset11 = context.configuration.sensor.blackLevel; + } + + return 0; +} + +/** + * \copydoc libcamera::ipa::Algorithm::prepare + */ +void BlackLevelCorrection::prepare([[maybe_unused]] IPAContext &context, + const uint32_t frame, + [[maybe_unused]] IPAFrameContext &frameContext, + mali_c55_params_buffer *params) +{ + mali_c55_params_block block; + block.data = ¶ms->data[params->total_size]; + + if (frame > 0) + return; + + if (!tuningParameters_) + return; + + block.header->type = MALI_C55_PARAM_BLOCK_SENSOR_OFFS; + block.header->flags = MALI_C55_PARAM_BLOCK_FL_NONE; + block.header->size = sizeof(mali_c55_params_sensor_off_preshading); + + block.sensor_offs->chan00 = offset00; + block.sensor_offs->chan01 = offset01; + block.sensor_offs->chan10 = offset10; + block.sensor_offs->chan11 = offset11; + + params->total_size += block.header->size; +} + +void BlackLevelCorrection::process([[maybe_unused]] IPAContext &context, + [[maybe_unused]] const uint32_t frame, + [[maybe_unused]] IPAFrameContext &frameContext, + [[maybe_unused]] const mali_c55_stats_buffer *stats, + ControlList &metadata) +{ + /* + * Black Level Offsets in tuning data need to be 20-bit, whereas the + * metadata expects values from a 16-bit range. Right-shift to remove + * the 4 least significant bits. + * + * The black levels should be reported in the order R, Gr, Gb, B. We + * ignore that here given we're using matching values so far, but it + * would be safer to check the sensor's bayer order. + * + * \todo Account for bayer order. + */ + metadata.set(controls::SensorBlackLevels, { + static_cast<int32_t>(offset00 >> 4), + static_cast<int32_t>(offset01 >> 4), + static_cast<int32_t>(offset10 >> 4), + static_cast<int32_t>(offset11 >> 4), + }); +} + +REGISTER_IPA_ALGORITHM(BlackLevelCorrection, "BlackLevelCorrection") + +} /* namespace ipa::mali_c55::algorithms */ + +} /* namespace libcamera */ diff --git a/src/ipa/mali-c55/algorithms/blc.h b/src/ipa/mali-c55/algorithms/blc.h new file mode 100644 index 00000000..9696e8e9 --- /dev/null +++ b/src/ipa/mali-c55/algorithms/blc.h @@ -0,0 +1,42 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +/* + * Copyright (C) 2024, Ideas On Board + * + * Mali-C55 sensor offset (black level) correction + */ + +#include "algorithm.h" + +namespace libcamera { + +namespace ipa::mali_c55::algorithms { + +class BlackLevelCorrection : public Algorithm +{ +public: + BlackLevelCorrection(); + ~BlackLevelCorrection() = default; + + int init(IPAContext &context, const YamlObject &tuningData) override; + int configure(IPAContext &context, + const IPACameraSensorInfo &configInfo) override; + void prepare(IPAContext &context, const uint32_t frame, + IPAFrameContext &frameContext, + mali_c55_params_buffer *params) override; + void process(IPAContext &context, const uint32_t frame, + IPAFrameContext &frameContext, + const mali_c55_stats_buffer *stats, + ControlList &metadata) override; + +private: + static constexpr uint32_t kMaxOffset = 0xfffff; + + bool tuningParameters_; + uint32_t offset00; + uint32_t offset01; + uint32_t offset10; + uint32_t offset11; +}; + +} /* namespace ipa::mali_c55::algorithms */ +} /* namespace libcamera */ diff --git a/src/ipa/mali-c55/algorithms/lsc.cpp b/src/ipa/mali-c55/algorithms/lsc.cpp new file mode 100644 index 00000000..c5afc04d --- /dev/null +++ b/src/ipa/mali-c55/algorithms/lsc.cpp @@ -0,0 +1,216 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +/* + * Copyright (C) 2024, Ideas On Board Oy + * + * lsc.cpp - Mali-C55 Lens shading correction algorithm + */ + +#include "lsc.h" + +#include "libcamera/internal/yaml_parser.h" + +namespace libcamera { + +namespace ipa::mali_c55::algorithms { + +LOG_DEFINE_CATEGORY(MaliC55Lsc) + +int Lsc::init([[maybe_unused]] IPAContext &context, const YamlObject &tuningData) +{ + if (!tuningData.contains("meshScale")) { + LOG(MaliC55Lsc, Error) << "meshScale missing from tuningData"; + return -EINVAL; + } + + meshScale_ = tuningData["meshScale"].get<uint32_t>(0); + + const YamlObject &yamlSets = tuningData["sets"]; + if (!yamlSets.isList()) { + LOG(MaliC55Lsc, Error) << "LSC tables missing or invalid"; + return -EINVAL; + } + + size_t tableSize = 0; + const auto &sets = yamlSets.asList(); + for (const auto &yamlSet : sets) { + uint32_t ct = yamlSet["ct"].get<uint32_t>(0); + + if (!ct) { + LOG(MaliC55Lsc, Error) << "Invalid colour temperature"; + return -EINVAL; + } + + if (std::count(colourTemperatures_.begin(), + colourTemperatures_.end(), ct)) { + LOG(MaliC55Lsc, Error) + << "Multiple sets found for colour temperature"; + return -EINVAL; + } + + std::vector<uint8_t> rTable = + yamlSet["r"].getList<uint8_t>().value_or(std::vector<uint8_t>{}); + std::vector<uint8_t> gTable = + yamlSet["g"].getList<uint8_t>().value_or(std::vector<uint8_t>{}); + std::vector<uint8_t> bTable = + yamlSet["b"].getList<uint8_t>().value_or(std::vector<uint8_t>{}); + + /* + * Some validation to do; only 16x16 and 32x32 tables of + * coefficients are acceptable, and all tables across all of the + * sets must be the same size. The first time we encounter a + * table we check that it is an acceptable size and if so make + * sure all other tables are of equal size. + */ + if (!tableSize) { + if (rTable.size() != 256 && rTable.size() != 1024) { + LOG(MaliC55Lsc, Error) + << "Invalid table size for colour temperature " << ct; + return -EINVAL; + } + tableSize = rTable.size(); + } + + if (rTable.size() != tableSize || + gTable.size() != tableSize || + bTable.size() != tableSize) { + LOG(MaliC55Lsc, Error) + << "Invalid or mismatched table size for colour temperature " << ct; + return -EINVAL; + } + + if (colourTemperatures_.size() >= 3) { + LOG(MaliC55Lsc, Error) + << "A maximum of 3 colour temperatures are supported"; + return -EINVAL; + } + + for (unsigned int i = 0; i < tableSize; i++) { + mesh_[kRedOffset + i] |= + (rTable[i] << (colourTemperatures_.size() * 8)); + mesh_[kGreenOffset + i] |= + (gTable[i] << (colourTemperatures_.size() * 8)); + mesh_[kBlueOffset + i] |= + (bTable[i] << (colourTemperatures_.size() * 8)); + } + + colourTemperatures_.push_back(ct); + } + + /* + * The mesh has either 16x16 or 32x32 nodes, we tell the driver which it + * is based on the number of values in the tuning data's table. + */ + if (tableSize == 256) + meshSize_ = 15; + else + meshSize_ = 31; + + return 0; +} + +size_t Lsc::fillConfigParamsBlock(mali_c55_params_block block) const +{ + block.header->type = MALI_C55_PARAM_MESH_SHADING_CONFIG; + block.header->flags = MALI_C55_PARAM_BLOCK_FL_NONE; + block.header->size = sizeof(struct mali_c55_params_mesh_shading_config); + + block.shading_config->mesh_show = false; + block.shading_config->mesh_scale = meshScale_; + block.shading_config->mesh_page_r = 0; + block.shading_config->mesh_page_g = 1; + block.shading_config->mesh_page_b = 2; + block.shading_config->mesh_width = meshSize_; + block.shading_config->mesh_height = meshSize_; + + std::copy(mesh_.begin(), mesh_.end(), block.shading_config->mesh); + + return block.header->size; +} + +size_t Lsc::fillSelectionParamsBlock(mali_c55_params_block block, uint8_t bank, + uint8_t alpha) const +{ + block.header->type = MALI_C55_PARAM_MESH_SHADING_SELECTION; + block.header->flags = MALI_C55_PARAM_BLOCK_FL_NONE; + block.header->size = sizeof(struct mali_c55_params_mesh_shading_selection); + + block.shading_selection->mesh_alpha_bank_r = bank; + block.shading_selection->mesh_alpha_bank_g = bank; + block.shading_selection->mesh_alpha_bank_b = bank; + block.shading_selection->mesh_alpha_r = alpha; + block.shading_selection->mesh_alpha_g = alpha; + block.shading_selection->mesh_alpha_b = alpha; + block.shading_selection->mesh_strength = 0x1000; /* Otherwise known as 1.0 */ + + return block.header->size; +} + +std::tuple<uint8_t, uint8_t> Lsc::findBankAndAlpha(uint32_t ct) const +{ + unsigned int i; + + ct = std::clamp<uint32_t>(ct, colourTemperatures_.front(), + colourTemperatures_.back()); + + for (i = 0; i < colourTemperatures_.size() - 1; i++) { + if (ct >= colourTemperatures_[i] && + ct <= colourTemperatures_[i + 1]) + break; + } + + /* + * With the clamping, we're guaranteed an index into colourTemperatures_ + * that's <= colourTemperatures_.size() - 1. + */ + uint8_t alpha = (255 * (ct - colourTemperatures_[i])) / + (colourTemperatures_[i + 1] - colourTemperatures_[i]); + + return { i, alpha }; +} + +void Lsc::prepare(IPAContext &context, [[maybe_unused]] const uint32_t frame, + [[maybe_unused]] IPAFrameContext &frameContext, + mali_c55_params_buffer *params) +{ + /* + * For each frame we assess the colour temperature of the **last** frame + * and then select an appropriately blended table of coefficients based + * on that ct. As a bit of a shortcut, if we've only a single table the + * handling is somewhat simpler; if it's the first frame we just select + * that table and if we're past the first frame then we can just do + * nothing - the config will never change. + */ + uint32_t temperatureK = context.activeState.agc.temperatureK; + uint8_t bank, alpha; + + if (colourTemperatures_.size() == 1) { + if (frame > 0) + return; + + bank = 0; + alpha = 0; + } else { + std::tie(bank, alpha) = findBankAndAlpha(temperatureK); + } + + mali_c55_params_block block; + block.data = ¶ms->data[params->total_size]; + + params->total_size += fillSelectionParamsBlock(block, bank, alpha); + + if (frame > 0) + return; + + /* + * If this is the first frame, we need to load the parsed coefficient + * tables from tuning data to the ISP. + */ + block.data = ¶ms->data[params->total_size]; + params->total_size += fillConfigParamsBlock(block); +} + +REGISTER_IPA_ALGORITHM(Lsc, "Lsc") + +} /* namespace ipa::mali_c55::algorithms */ + +} /* namespace libcamera */ diff --git a/src/ipa/mali-c55/algorithms/lsc.h b/src/ipa/mali-c55/algorithms/lsc.h new file mode 100644 index 00000000..e613277a --- /dev/null +++ b/src/ipa/mali-c55/algorithms/lsc.h @@ -0,0 +1,45 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +/* + * Copyright (C) 2024, Ideas On Board Oy + * + * lsc.h - Mali-C55 Lens shading correction algorithm + */ + +#include <map> +#include <tuple> + +#include "algorithm.h" + +namespace libcamera { + +namespace ipa::mali_c55::algorithms { + +class Lsc : public Algorithm +{ +public: + Lsc() = default; + ~Lsc() = default; + + int init(IPAContext &context, const YamlObject &tuningData) override; + void prepare(IPAContext &context, const uint32_t frame, + IPAFrameContext &frameContext, + mali_c55_params_buffer *params) override; +private: + static constexpr unsigned int kRedOffset = 0; + static constexpr unsigned int kGreenOffset = 1024; + static constexpr unsigned int kBlueOffset = 2048; + + size_t fillConfigParamsBlock(mali_c55_params_block block) const; + size_t fillSelectionParamsBlock(mali_c55_params_block block, + uint8_t bank, uint8_t alpha) const; + std::tuple<uint8_t, uint8_t> findBankAndAlpha(uint32_t ct) const; + + std::vector<uint32_t> mesh_ = std::vector<uint32_t>(3072); + std::vector<uint32_t> colourTemperatures_; + uint32_t meshScale_; + uint32_t meshSize_; +}; + +} /* namespace ipa::mali_c55::algorithms */ + +} /* namespace libcamera */ diff --git a/src/ipa/mali-c55/algorithms/meson.build b/src/ipa/mali-c55/algorithms/meson.build new file mode 100644 index 00000000..1665da07 --- /dev/null +++ b/src/ipa/mali-c55/algorithms/meson.build @@ -0,0 +1,8 @@ +# SPDX-License-Identifier: CC0-1.0 + +mali_c55_ipa_algorithms = files([ + 'agc.cpp', + 'awb.cpp', + 'blc.cpp', + 'lsc.cpp', +]) diff --git a/src/ipa/mali-c55/data/imx415.yaml b/src/ipa/mali-c55/data/imx415.yaml new file mode 100644 index 00000000..126b427a --- /dev/null +++ b/src/ipa/mali-c55/data/imx415.yaml @@ -0,0 +1,325 @@ +# SPDX-License-Identifier: CC0-1.0 +%YAML 1.1 +--- +version: 1 +algorithms: + - Agc: + - Awb: + - BlackLevelCorrection: + offset00: 51200 + offset01: 51200 + offset10: 51200 + offset11: 51200 + - Lsc: + meshScale: 4 # 1.0 - 2.0 Gain + sets: + - ct: 2500 + r: [ + 21, 20, 19, 17, 15, 14, 12, 11, 9, 9, 9, 9, 8, 8, 9, 9, 9, 9, 9, 9, 9, 9, 13, 13, 10, 10, 13, 16, 17, 18, 21, 22, + 21, 20, 18, 16, 14, 13, 12, 11, 10, 9, 9, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 12, 15, 17, 18, 21, 21, + 20, 19, 17, 16, 14, 13, 12, 11, 10, 9, 8, 8, 8, 7, 7, 7, 8, 8, 8, 8, 8, 9, 9, 8, 8, 8, 11, 15, 17, 18, 21, 21, + 19, 19, 17, 15, 14, 13, 12, 11, 10, 8, 8, 7, 7, 7, 6, 6, 7, 7, 8, 8, 8, 8, 8, 7, 7, 8, 10, 14, 17, 18, 20, 22, + 19, 18, 17, 15, 14, 13, 11, 11, 9, 8, 8, 7, 7, 6, 5, 5, 5, 5, 6, 7, 8, 7, 7, 6, 7, 7, 10, 12, 16, 18, 20, 22, + 18, 18, 16, 15, 14, 12, 11, 10, 9, 8, 6, 6, 5, 5, 4, 4, 5, 5, 5, 5, 6, 6, 6, 6, 6, 7, 8, 12, 16, 18, 19, 20, + 18, 18, 16, 14, 13, 12, 11, 9, 9, 7, 6, 5, 5, 5, 4, 4, 4, 5, 5, 4, 4, 5, 5, 5, 5, 6, 8, 11, 15, 18, 18, 19, + 18, 17, 15, 14, 13, 12, 11, 9, 8, 7, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 6, 7, 9, 14, 17, 18, 18, + 18, 17, 15, 14, 13, 12, 11, 9, 8, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 6, 8, 12, 17, 18, 18, + 18, 16, 15, 13, 12, 11, 10, 9, 8, 7, 5, 4, 4, 4, 4, 3, 3, 4, 4, 4, 3, 3, 4, 4, 4, 5, 6, 8, 12, 16, 19, 19, + 17, 16, 15, 13, 12, 11, 10, 8, 7, 6, 4, 4, 3, 3, 3, 3, 3, 3, 4, 4, 3, 3, 3, 4, 4, 5, 6, 9, 12, 16, 19, 20, + 17, 15, 15, 13, 12, 11, 10, 8, 6, 6, 5, 4, 3, 3, 3, 2, 3, 3, 4, 4, 3, 3, 2, 3, 4, 5, 6, 9, 11, 16, 19, 20, + 17, 15, 15, 14, 11, 11, 10, 8, 6, 5, 5, 4, 3, 3, 2, 2, 2, 3, 3, 3, 3, 3, 2, 3, 4, 5, 6, 8, 11, 16, 18, 19, + 16, 16, 15, 13, 11, 11, 10, 7, 6, 5, 4, 4, 3, 2, 2, 2, 2, 3, 3, 3, 3, 2, 2, 2, 3, 4, 6, 8, 11, 14, 17, 18, + 16, 16, 14, 13, 11, 10, 9, 7, 6, 5, 4, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 2, 2, 2, 3, 4, 6, 8, 10, 14, 17, 18, + 16, 15, 14, 13, 13, 10, 9, 7, 6, 4, 4, 2, 2, 1, 1, 2, 2, 2, 2, 2, 2, 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19, 18, 16, 14, 13, 11, 9, 8, 8, 8, 8, 8, 8, 9, 10, 12, 15, 18, 18, 18, 17, 16, 14, + 23, 24, 24, 23, 23, 22, 22, 21, 21, 20, 20, 19, 18, 15, 13, 11, 9, 8, 8, 8, 9, 9, 10, 11, 13, 16, 18, 18, 17, 17, 15, 14, + 24, 24, 24, 24, 24, 23, 22, 22, 22, 22, 20, 20, 19, 18, 15, 13, 10, 9, 9, 9, 9, 10, 11, 12, 15, 17, 18, 18, 17, 16, 15, 13, + ] +... diff --git a/src/ipa/mali-c55/data/meson.build b/src/ipa/mali-c55/data/meson.build new file mode 100644 index 00000000..8a5fdd36 --- /dev/null +++ b/src/ipa/mali-c55/data/meson.build @@ -0,0 +1,9 @@ +# SPDX-License-Identifier: CC0-1.0 + +conf_files = files([ + 'imx415.yaml', + 'uncalibrated.yaml' +]) + +install_data(conf_files, + install_dir : ipa_data_dir / 'mali-c55') diff --git a/src/ipa/mali-c55/data/uncalibrated.yaml b/src/ipa/mali-c55/data/uncalibrated.yaml new file mode 100644 index 00000000..6dcc0295 --- /dev/null +++ b/src/ipa/mali-c55/data/uncalibrated.yaml @@ -0,0 +1,7 @@ +# SPDX-License-Identifier: CC0-1.0 +%YAML 1.1 +--- +version: 1 +algorithms: + - Agc: +... diff --git a/src/ipa/mali-c55/ipa_context.cpp b/src/ipa/mali-c55/ipa_context.cpp new file mode 100644 index 00000000..99f76ecd --- /dev/null +++ b/src/ipa/mali-c55/ipa_context.cpp @@ -0,0 +1,101 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +/* + * Copyright (C) 2024, Ideas On Board + * + * ipa_context.cpp - MaliC55 IPA Context + */ + +#include "ipa_context.h" + +/** + * \file ipa_context.h + * \brief Context and state information shared between the algorithms + */ + +namespace libcamera::ipa::mali_c55 { + +/** + * \struct IPASessionConfiguration + * \brief Session configuration for the IPA module + * + * The session configuration contains all IPA configuration parameters that + * remain constant during the capture session, from IPA module start to stop. + * It is typically set during the configure() operation of the IPA module, but + * may also be updated in the start() operation. + */ + +/** + * \struct IPAActiveState + * \brief Active state for algorithms + * + * The active state contains all algorithm-specific data that needs to be + * maintained by algorithms across frames. Unlike the session configuration, + * the active state is mutable and constantly updated by algorithms. The active + * state is accessible through the IPAContext structure. + * + * The active state stores two distinct categories of information: + * + * - The consolidated value of all algorithm controls. Requests passed to + * the queueRequest() function store values for controls that the + * application wants to modify for that particular frame, and the + * queueRequest() function updates the active state with those values. + * The active state thus contains a consolidated view of the value of all + * controls handled by the algorithm. + * + * - The value of parameters computed by the algorithm when running in auto + * mode. Algorithms running in auto mode compute new parameters every + * time statistics buffers are received (either synchronously, or + * possibly in a background thread). The latest computed value of those + * parameters is stored in the active state in the process() function. + * + * Each of the members in the active state belongs to a specific algorithm. A + * member may be read by any algorithm, but shall only be written by its owner. + */ + +/** + * \struct IPAFrameContext + * \brief Per-frame context for algorithms + * + * The frame context stores two distinct categories of information: + * + * - The value of the controls to be applied to the frame. These values are + * typically set in the queueRequest() function, from the consolidated + * control values stored in the active state. The frame context thus stores + * values for all controls related to the algorithm, not limited to the + * controls specified in the corresponding request, but consolidated from all + * requests that have been queued so far. + * + * For controls that can be set manually or computed by an algorithm + * (depending on the algorithm operation mode), such as for instance the + * colour gains for the AWB algorithm, the control value will be stored in + * the frame context in the queueRequest() function only when operating in + * manual mode. When operating in auto mode, the values are computed by the + * algorithm in process(), stored in the active state, and copied to the + * frame context in prepare(), just before being stored in the ISP parameters + * buffer. + * + * The queueRequest() function can also store ancillary data in the frame + * context, such as flags to indicate if (and what) control values have + * changed compared to the previous request. + * + * - Status information computed by the algorithm for a frame. For instance, + * the colour temperature estimated by the AWB algorithm from ISP statistics + * calculated on a frame is stored in the frame context for that frame in + * the process() function. + */ + +/** + * \struct IPAContext + * \brief Global IPA context data shared between all algorithms + * + * \var IPAContext::configuration + * \brief The IPA session configuration, immutable during the session + * + * \var IPAContext::activeState + * \brief The IPA active state, storing the latest state for all algorithms + * + * \var IPAContext::frameContexts + * \brief Ring buffer of per-frame contexts + */ + +} /* namespace libcamera::ipa::mali_c55 */ diff --git a/src/ipa/mali-c55/ipa_context.h b/src/ipa/mali-c55/ipa_context.h new file mode 100644 index 00000000..5e3e2fbd --- /dev/null +++ b/src/ipa/mali-c55/ipa_context.h @@ -0,0 +1,90 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +/* + * Copyright (C) 2024, Ideas On Board + * + * ipa_context.h - Mali-C55 IPA Context + */ + +#pragma once + +#include <libcamera/base/utils.h> +#include <libcamera/controls.h> + +#include "libcamera/internal/bayer_format.h" + +#include <libipa/fc_queue.h> + +namespace libcamera { + +namespace ipa::mali_c55 { + +struct IPASessionConfiguration { + struct { + utils::Duration minShutterSpeed; + utils::Duration maxShutterSpeed; + uint32_t defaultExposure; + double minAnalogueGain; + double maxAnalogueGain; + } agc; + + struct { + BayerFormat::Order bayerOrder; + utils::Duration lineDuration; + uint32_t blackLevel; + } sensor; +}; + +struct IPAActiveState { + struct { + struct { + uint32_t exposure; + double sensorGain; + double ispGain; + } automatic; + struct { + uint32_t exposure; + double sensorGain; + double ispGain; + } manual; + bool autoEnabled; + uint32_t constraintMode; + uint32_t exposureMode; + uint32_t temperatureK; + } agc; + + struct { + double rGain; + double bGain; + } awb; +}; + +struct IPAFrameContext : public FrameContext { + struct { + uint32_t exposure; + double sensorGain; + double ispGain; + } agc; + + struct { + double rGain; + double bGain; + } awb; +}; + +struct IPAContext { + IPAContext(unsigned int frameContextSize) + : frameContexts(frameContextSize) + { + } + + IPASessionConfiguration configuration; + IPAActiveState activeState; + + FCQueue<IPAFrameContext> frameContexts; + + ControlInfoMap::Map ctrlMap; +}; + +} /* namespace ipa::mali_c55 */ + +} /* namespace libcamera*/ diff --git a/src/ipa/mali-c55/mali-c55.cpp b/src/ipa/mali-c55/mali-c55.cpp new file mode 100644 index 00000000..c6941a95 --- /dev/null +++ b/src/ipa/mali-c55/mali-c55.cpp @@ -0,0 +1,399 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +/* + * Copyright (C) 2023, Ideas on Board Oy + * + * mali-c55.cpp - Mali-C55 ISP image processing algorithms + */ + +#include <map> +#include <string.h> +#include <vector> + +#include <linux/mali-c55-config.h> +#include <linux/v4l2-controls.h> + +#include <libcamera/base/file.h> +#include <libcamera/base/log.h> + +#include <libcamera/control_ids.h> +#include <libcamera/ipa/ipa_interface.h> +#include <libcamera/ipa/ipa_module_info.h> +#include <libcamera/ipa/mali-c55_ipa_interface.h> + +#include "libcamera/internal/bayer_format.h" +#include "libcamera/internal/mapped_framebuffer.h" +#include "libcamera/internal/yaml_parser.h" + +#include "algorithms/algorithm.h" +#include "libipa/camera_sensor_helper.h" + +#include "ipa_context.h" + +namespace libcamera { + +LOG_DEFINE_CATEGORY(IPAMaliC55) + +using namespace std::literals::chrono_literals; + +namespace ipa::mali_c55 { + +/* Maximum number of frame contexts to be held */ +static constexpr uint32_t kMaxFrameContexts = 16; + +class IPAMaliC55 : public IPAMaliC55Interface, public Module +{ +public: + IPAMaliC55(); + + int init(const IPASettings &settings, const IPAConfigInfo &ipaConfig, + ControlInfoMap *ipaControls) override; + int start() override; + void stop() override; + int configure(const IPAConfigInfo &ipaConfig, uint8_t bayerOrder, + ControlInfoMap *ipaControls) override; + void mapBuffers(const std::vector<IPABuffer> &buffers, bool readOnly) override; + void unmapBuffers(const std::vector<IPABuffer> &buffers) override; + void queueRequest(const uint32_t request, const ControlList &controls) override; + void fillParams(unsigned int request, uint32_t bufferId) override; + void processStats(unsigned int request, unsigned int bufferId, + const ControlList &sensorControls) override; + +protected: + std::string logPrefix() const override; + +private: + void updateSessionConfiguration(const IPACameraSensorInfo &info, + const ControlInfoMap &sensorControls, + BayerFormat::Order bayerOrder); + void updateControls(const IPACameraSensorInfo &sensorInfo, + const ControlInfoMap &sensorControls, + ControlInfoMap *ipaControls); + void setControls(); + + std::map<unsigned int, MappedFrameBuffer> buffers_; + + ControlInfoMap sensorControls_; + + /* Interface to the Camera Helper */ + std::unique_ptr<CameraSensorHelper> camHelper_; + + /* Local parameter storage */ + struct IPAContext context_; +}; + +namespace { + +} /* namespace */ + +IPAMaliC55::IPAMaliC55() + : context_(kMaxFrameContexts) +{ +} + +std::string IPAMaliC55::logPrefix() const +{ + return "mali-c55"; +} + +int IPAMaliC55::init(const IPASettings &settings, const IPAConfigInfo &ipaConfig, + ControlInfoMap *ipaControls) +{ + camHelper_ = CameraSensorHelperFactoryBase::create(settings.sensorModel); + if (!camHelper_) { + LOG(IPAMaliC55, Error) + << "Failed to create camera sensor helper for " + << settings.sensorModel; + return -ENODEV; + } + + File file(settings.configurationFile); + if (!file.open(File::OpenModeFlag::ReadOnly)) { + int ret = file.error(); + LOG(IPAMaliC55, Error) + << "Failed to open configuration file " + << settings.configurationFile << ": " << strerror(-ret); + return ret; + } + + std::unique_ptr<libcamera::YamlObject> data = YamlParser::parse(file); + if (!data) + return -EINVAL; + + if (!data->contains("algorithms")) { + LOG(IPAMaliC55, Error) + << "Tuning file doesn't contain any algorithm"; + return -EINVAL; + } + + int ret = createAlgorithms(context_, (*data)["algorithms"]); + if (ret) + return ret; + + updateControls(ipaConfig.sensorInfo, ipaConfig.sensorControls, ipaControls); + + return 0; +} + +void IPAMaliC55::setControls() +{ + IPAActiveState &activeState = context_.activeState; + uint32_t exposure; + uint32_t gain; + + if (activeState.agc.autoEnabled) { + exposure = activeState.agc.automatic.exposure; + gain = camHelper_->gainCode(activeState.agc.automatic.sensorGain); + } else { + exposure = activeState.agc.manual.exposure; + gain = camHelper_->gainCode(activeState.agc.manual.sensorGain); + } + + ControlList ctrls(sensorControls_); + ctrls.set(V4L2_CID_EXPOSURE, static_cast<int32_t>(exposure)); + ctrls.set(V4L2_CID_ANALOGUE_GAIN, static_cast<int32_t>(gain)); + + setSensorControls.emit(ctrls); +} + +int IPAMaliC55::start() +{ + return 0; +} + +void IPAMaliC55::stop() +{ + context_.frameContexts.clear(); +} + +void IPAMaliC55::updateSessionConfiguration(const IPACameraSensorInfo &info, + const ControlInfoMap &sensorControls, + BayerFormat::Order bayerOrder) +{ + context_.configuration.sensor.bayerOrder = bayerOrder; + + const ControlInfo &v4l2Exposure = sensorControls.find(V4L2_CID_EXPOSURE)->second; + int32_t minExposure = v4l2Exposure.min().get<int32_t>(); + int32_t maxExposure = v4l2Exposure.max().get<int32_t>(); + int32_t defExposure = v4l2Exposure.def().get<int32_t>(); + + const ControlInfo &v4l2Gain = sensorControls.find(V4L2_CID_ANALOGUE_GAIN)->second; + int32_t minGain = v4l2Gain.min().get<int32_t>(); + int32_t maxGain = v4l2Gain.max().get<int32_t>(); + + /* + * When the AGC computes the new exposure values for a frame, it needs + * to know the limits for shutter speed and analogue gain. + * As it depends on the sensor, update it with the controls. + * + * \todo take VBLANK into account for maximum shutter speed + */ + context_.configuration.sensor.lineDuration = info.minLineLength * 1.0s / info.pixelRate; + context_.configuration.agc.minShutterSpeed = minExposure * context_.configuration.sensor.lineDuration; + context_.configuration.agc.maxShutterSpeed = maxExposure * context_.configuration.sensor.lineDuration; + context_.configuration.agc.defaultExposure = defExposure; + context_.configuration.agc.minAnalogueGain = camHelper_->gain(minGain); + context_.configuration.agc.maxAnalogueGain = camHelper_->gain(maxGain); + + if (camHelper_->blackLevel().has_value()) { + /* + * The black level from CameraSensorHelper is a 16-bit value. + * The Mali-C55 ISP expects 20-bit settings, so we shift it to + * the appropriate width + */ + context_.configuration.sensor.blackLevel = + camHelper_->blackLevel().value() << 4; + } +} + +void IPAMaliC55::updateControls(const IPACameraSensorInfo &sensorInfo, + const ControlInfoMap &sensorControls, + ControlInfoMap *ipaControls) +{ + ControlInfoMap::Map ctrlMap; + + /* + * Compute the frame duration limits. + * + * The frame length is computed assuming a fixed line length combined + * with the vertical frame sizes. + */ + const ControlInfo &v4l2HBlank = sensorControls.find(V4L2_CID_HBLANK)->second; + uint32_t hblank = v4l2HBlank.def().get<int32_t>(); + uint32_t lineLength = sensorInfo.outputSize.width + hblank; + + const ControlInfo &v4l2VBlank = sensorControls.find(V4L2_CID_VBLANK)->second; + std::array<uint32_t, 3> frameHeights{ + v4l2VBlank.min().get<int32_t>() + sensorInfo.outputSize.height, + v4l2VBlank.max().get<int32_t>() + sensorInfo.outputSize.height, + v4l2VBlank.def().get<int32_t>() + sensorInfo.outputSize.height, + }; + + std::array<int64_t, 3> frameDurations; + for (unsigned int i = 0; i < frameHeights.size(); ++i) { + uint64_t frameSize = lineLength * frameHeights[i]; + frameDurations[i] = frameSize / (sensorInfo.pixelRate / 1000000U); + } + + ctrlMap[&controls::FrameDurationLimits] = ControlInfo(frameDurations[0], + frameDurations[1], + frameDurations[2]); + + /* + * Compute exposure time limits from the V4L2_CID_EXPOSURE control + * limits and the line duration. + */ + double lineDuration = sensorInfo.minLineLength / sensorInfo.pixelRate; + + const ControlInfo &v4l2Exposure = sensorControls.find(V4L2_CID_EXPOSURE)->second; + int32_t minExposure = v4l2Exposure.min().get<int32_t>() * lineDuration; + int32_t maxExposure = v4l2Exposure.max().get<int32_t>() * lineDuration; + int32_t defExposure = v4l2Exposure.def().get<int32_t>() * lineDuration; + ctrlMap[&controls::ExposureTime] = ControlInfo(minExposure, maxExposure, defExposure); + + /* Compute the analogue gain limits. */ + const ControlInfo &v4l2Gain = sensorControls.find(V4L2_CID_ANALOGUE_GAIN)->second; + float minGain = camHelper_->gain(v4l2Gain.min().get<int32_t>()); + float maxGain = camHelper_->gain(v4l2Gain.max().get<int32_t>()); + float defGain = camHelper_->gain(v4l2Gain.def().get<int32_t>()); + ctrlMap[&controls::AnalogueGain] = ControlInfo(minGain, maxGain, defGain); + + /* + * Merge in any controls that we support either statically or from the + * algorithms. + */ + ctrlMap.merge(context_.ctrlMap); + + *ipaControls = ControlInfoMap(std::move(ctrlMap), controls::controls); +} + +int IPAMaliC55::configure(const IPAConfigInfo &ipaConfig, uint8_t bayerOrder, + ControlInfoMap *ipaControls) +{ + sensorControls_ = ipaConfig.sensorControls; + + /* Clear the IPA context before the streaming session. */ + context_.configuration = {}; + context_.activeState = {}; + context_.frameContexts.clear(); + + const IPACameraSensorInfo &info = ipaConfig.sensorInfo; + + updateSessionConfiguration(info, ipaConfig.sensorControls, + static_cast<BayerFormat::Order>(bayerOrder)); + updateControls(info, ipaConfig.sensorControls, ipaControls); + + for (auto const &a : algorithms()) { + Algorithm *algo = static_cast<Algorithm *>(a.get()); + + int ret = algo->configure(context_, info); + if (ret) + return ret; + } + + return 0; +} + +void IPAMaliC55::mapBuffers(const std::vector<IPABuffer> &buffers, bool readOnly) +{ + for (const IPABuffer &buffer : buffers) { + const FrameBuffer fb(buffer.planes); + buffers_.emplace( + buffer.id, + MappedFrameBuffer( + &fb, + readOnly ? MappedFrameBuffer::MapFlag::Read + : MappedFrameBuffer::MapFlag::ReadWrite)); + } +} + +void IPAMaliC55::unmapBuffers(const std::vector<IPABuffer> &buffers) +{ + for (const IPABuffer &buffer : buffers) { + auto it = buffers_.find(buffer.id); + if (it == buffers_.end()) + continue; + + buffers_.erase(buffer.id); + } +} + +void IPAMaliC55::queueRequest(const uint32_t request, const ControlList &controls) +{ + IPAFrameContext &frameContext = context_.frameContexts.alloc(request); + + for (auto const &a : algorithms()) { + Algorithm *algo = static_cast<Algorithm *>(a.get()); + + algo->queueRequest(context_, request, frameContext, controls); + } +} + +void IPAMaliC55::fillParams(unsigned int request, + [[maybe_unused]] uint32_t bufferId) +{ + struct mali_c55_params_buffer *params; + IPAFrameContext &frameContext = context_.frameContexts.get(request); + + params = reinterpret_cast<mali_c55_params_buffer *>( + buffers_.at(bufferId).planes()[0].data()); + memset(params, 0, sizeof(mali_c55_params_buffer)); + + params->version = MALI_C55_PARAM_BUFFER_V1; + + for (auto const &algo : algorithms()) { + algo->prepare(context_, request, frameContext, params); + + ASSERT(params->total_size <= MALI_C55_PARAMS_MAX_SIZE); + } + + paramsComputed.emit(request); +} + +void IPAMaliC55::processStats(unsigned int request, unsigned int bufferId, + const ControlList &sensorControls) +{ + IPAFrameContext &frameContext = context_.frameContexts.get(request); + const mali_c55_stats_buffer *stats = nullptr; + + stats = reinterpret_cast<mali_c55_stats_buffer *>( + buffers_.at(bufferId).planes()[0].data()); + + frameContext.agc.exposure = + sensorControls.get(V4L2_CID_EXPOSURE).get<int32_t>(); + frameContext.agc.sensorGain = + camHelper_->gain(sensorControls.get(V4L2_CID_ANALOGUE_GAIN).get<int32_t>()); + + ControlList metadata(controls::controls); + + for (auto const &a : algorithms()) { + Algorithm *algo = static_cast<Algorithm *>(a.get()); + + algo->process(context_, request, frameContext, stats, metadata); + } + + setControls(); + + statsProcessed.emit(request, metadata); +} + +} /* namespace ipa::mali_c55 */ + +/* + * External IPA module interface + */ +extern "C" { +const struct IPAModuleInfo ipaModuleInfo = { + IPA_MODULE_API_VERSION, + 1, + "mali-c55", + "mali-c55", +}; + +IPAInterface *ipaCreate() +{ + return new ipa::mali_c55::IPAMaliC55(); +} + +} /* extern "C" */ + +} /* namespace libcamera */ diff --git a/src/ipa/mali-c55/meson.build b/src/ipa/mali-c55/meson.build new file mode 100644 index 00000000..864d90ec --- /dev/null +++ b/src/ipa/mali-c55/meson.build @@ -0,0 +1,33 @@ +# SPDX-License-Identifier: CC0-1.0 + +subdir('algorithms') +subdir('data') + +ipa_name = 'ipa_mali_c55' + +mali_c55_ipa_sources = files([ + 'ipa_context.cpp', + 'mali-c55.cpp' +]) + +mali_c55_ipa_sources += mali_c55_ipa_algorithms + +mod = shared_module(ipa_name, + mali_c55_ipa_sources, + name_prefix : '', + include_directories : [ipa_includes, libipa_includes], + dependencies : libcamera_private, + link_with : libipa, + install : true, + install_dir : ipa_install_dir) + +if ipa_sign_module + custom_target(ipa_name + '.so.sign', + input : mod, + output : ipa_name + '.so.sign', + command : [ipa_sign, ipa_priv_key, '@INPUT@', '@OUTPUT@'], + install : false, + build_by_default : true) +endif + +ipa_names += ipa_name diff --git a/src/ipa/mali-c55/module.h b/src/ipa/mali-c55/module.h new file mode 100644 index 00000000..1d85ec1f --- /dev/null +++ b/src/ipa/mali-c55/module.h @@ -0,0 +1,27 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +/* + * Copyright (C) 2024, Ideas On Board + * + * module.h - Mali-C55 IPA Module + */ + +#pragma once + +#include <linux/mali-c55-config.h> + +#include <libcamera/ipa/mali-c55_ipa_interface.h> + +#include <libipa/module.h> + +#include "ipa_context.h" + +namespace libcamera { + +namespace ipa::mali_c55 { + +using Module = ipa::Module<IPAContext, IPAFrameContext, IPACameraSensorInfo, + mali_c55_params_buffer, mali_c55_stats_buffer>; + +} /* namespace ipa::mali_c55 */ + +} /* namespace libcamera*/ diff --git a/src/ipa/meson.build b/src/ipa/meson.build index 903eb52b..68f64b9a 100644 --- a/src/ipa/meson.build +++ b/src/ipa/meson.build @@ -4,7 +4,7 @@ ipa_includes = [ libcamera_includes, ] -ipa_install_dir = libcamera_libdir +ipa_install_dir = libcamera_libdir / 'ipa' ipa_data_dir = libcamera_datadir / 'ipa' ipa_sysconf_dir = libcamera_sysconfdir / 'ipa' @@ -41,6 +41,9 @@ ipa_names = [] subdirs = [] foreach pipeline : pipelines + # The current implementation expects the IPA module name to match the + # pipeline name. + # \todo Make the IPA naming scheme more flexible. if not ipa_modules.contains(pipeline) continue endif @@ -72,5 +75,6 @@ if ipa_sign_module # install time, which invalidates the signatures. meson.add_install_script('ipa-sign-install.sh', ipa_priv_key.full_path(), - enabled_ipa_modules) + enabled_ipa_modules, + install_tag : 'runtime') endif diff --git a/src/ipa/rkisp1/algorithms/agc.cpp b/src/ipa/rkisp1/algorithms/agc.cpp index e5aeb342..137a0750 100644 --- a/src/ipa/rkisp1/algorithms/agc.cpp +++ b/src/ipa/rkisp1/algorithms/agc.cpp @@ -2,7 +2,7 @@ /* * Copyright (C) 2021-2022, Ideas On Board * - * agc.cpp - AGC/AEC mean-based control algorithm + * AGC/AEC mean-based control algorithm */ #include "agc.h" @@ -10,6 +10,8 @@ #include <algorithm> #include <chrono> #include <cmath> +#include <tuple> +#include <vector> #include <libcamera/base/log.h> #include <libcamera/base/utils.h> @@ -17,6 +19,8 @@ #include <libcamera/control_ids.h> #include <libcamera/ipa/core_ipa_interface.h> +#include "libcamera/internal/yaml_parser.h" + #include "libipa/histogram.h" /** @@ -36,35 +40,129 @@ namespace ipa::rkisp1::algorithms { LOG_DEFINE_CATEGORY(RkISP1Agc) -/* Minimum limit for analogue gain value */ -static constexpr double kMinAnalogueGain = 1.0; +int Agc::parseMeteringModes(IPAContext &context, const YamlObject &tuningData) +{ + if (!tuningData.isDictionary()) + LOG(RkISP1Agc, Warning) + << "'AeMeteringMode' parameter not found in tuning file"; + + for (const auto &[key, value] : tuningData.asDict()) { + if (controls::AeMeteringModeNameValueMap.find(key) == + controls::AeMeteringModeNameValueMap.end()) { + LOG(RkISP1Agc, Warning) + << "Skipping unknown metering mode '" << key << "'"; + continue; + } -/* \todo Honour the FrameDurationLimits control instead of hardcoding a limit */ -static constexpr utils::Duration kMaxShutterSpeed = 60ms; + std::vector<uint8_t> weights = + value.getList<uint8_t>().value_or(std::vector<uint8_t>{}); + if (weights.size() != context.hw->numHistogramWeights) { + LOG(RkISP1Agc, Warning) + << "Failed to read metering mode'" << key << "'"; + continue; + } -/* Number of frames to wait before calculating stats on minimum exposure */ -static constexpr uint32_t kNumStartupFrames = 10; + meteringModes_[controls::AeMeteringModeNameValueMap.at(key)] = weights; + } -/* Target value to reach for the top 2% of the histogram */ -static constexpr double kEvGainTarget = 0.5; + if (meteringModes_.empty()) { + LOG(RkISP1Agc, Warning) + << "No metering modes read from tuning file; defaulting to matrix"; + std::vector<uint8_t> weights(context.hw->numHistogramWeights, 1); -/* - * Relative luminance target. - * - * It's a number that's chosen so that, when the camera points at a grey - * target, the resulting image brightness is considered right. - * - * \todo Why is the value different between IPU3 and RkISP1 ? - */ -static constexpr double kRelativeLuminanceTarget = 0.4; + meteringModes_[controls::MeteringMatrix] = weights; + } + + std::vector<ControlValue> meteringModes; + std::vector<int> meteringModeKeys = utils::map_keys(meteringModes_); + std::transform(meteringModeKeys.begin(), meteringModeKeys.end(), + std::back_inserter(meteringModes), + [](int x) { return ControlValue(x); }); + context.ctrlMap[&controls::AeMeteringMode] = ControlInfo(meteringModes); + + return 0; +} + +uint8_t Agc::computeHistogramPredivider(const Size &size, + enum rkisp1_cif_isp_histogram_mode mode) +{ + /* + * The maximum number of pixels that could potentially be in one bin is + * if all the pixels of the image are in it, multiplied by 3 for the + * three color channels. The counter for each bin is 16 bits wide, so + * `factor` thus contains the number of times we'd wrap around. This is + * obviously the number of pixels that we need to skip to make sure + * that we don't wrap around, but we compute the square root of it + * instead, as the skip that we need to program is for both the x and y + * directions. + * + * Even though it looks like dividing into a counter of 65536 would + * overflow by 1, this is apparently fine according to the hardware + * documentation, and this successfully gets the expected documented + * predivider size for cases where: + * (width / predivider) * (height / predivider) * 3 == 65536. + * + * There's a bit of extra rounding math to make sure the rounding goes + * the correct direction so that the square of the step is big enough + * to encompass the `factor` number of pixels that we need to skip. + * + * \todo Take into account weights. That is, if the weights are low + * enough we can potentially reduce the predivider to increase + * precision. This needs some investigation however, as this hardware + * behavior is undocumented and is only an educated guess. + */ + int count = mode == RKISP1_CIF_ISP_HISTOGRAM_MODE_RGB_COMBINED ? 3 : 1; + double factor = size.width * size.height * count / 65536.0; + double root = std::sqrt(factor); + uint8_t predivider = static_cast<uint8_t>(std::ceil(root)); + + return std::clamp<uint8_t>(predivider, 3, 127); +} Agc::Agc() - : frameCount_(0), numCells_(0), numHistBins_(0), filteredExposure_(0s) { supportsRaw_ = true; } /** + * \brief Initialise the AGC algorithm from tuning files + * \param[in] context The shared IPA context + * \param[in] tuningData The YamlObject containing Agc tuning data + * + * This function calls the base class' tuningData parsers to discover which + * control values are supported. + * + * \return 0 on success or errors from the base class + */ +int Agc::init(IPAContext &context, const YamlObject &tuningData) +{ + int ret; + + ret = parseTuningData(tuningData); + if (ret) + return ret; + + const YamlObject &yamlMeteringModes = tuningData["AeMeteringMode"]; + ret = parseMeteringModes(context, yamlMeteringModes); + if (ret) + return ret; + + context.ctrlMap[&controls::ExposureTimeMode] = + ControlInfo({ { ControlValue(controls::ExposureTimeModeAuto), + ControlValue(controls::ExposureTimeModeManual) } }, + ControlValue(controls::ExposureTimeModeAuto)); + context.ctrlMap[&controls::AnalogueGainMode] = + ControlInfo({ { ControlValue(controls::AnalogueGainModeAuto), + ControlValue(controls::AnalogueGainModeManual) } }, + ControlValue(controls::AnalogueGainModeAuto)); + /* \todo Move this to the Camera class */ + context.ctrlMap[&controls::AeEnable] = ControlInfo(false, true, true); + context.ctrlMap.merge(controls()); + + return 0; +} + +/** * \brief Configure the AGC given a configInfo * \param[in] context The shared IPA context * \param[in] configInfo The IPA configuration data @@ -79,35 +177,33 @@ int Agc::configure(IPAContext &context, const IPACameraSensorInfo &configInfo) 10ms / context.configuration.sensor.lineDuration; context.activeState.agc.manual.gain = context.activeState.agc.automatic.gain; context.activeState.agc.manual.exposure = context.activeState.agc.automatic.exposure; - context.activeState.agc.autoEnabled = !context.configuration.raw; + context.activeState.agc.autoExposureEnabled = !context.configuration.raw; + context.activeState.agc.autoGainEnabled = !context.configuration.raw; - /* - * According to the RkISP1 documentation: - * - versions < V12 have RKISP1_CIF_ISP_AE_MEAN_MAX_V10 entries, - * - versions >= V12 have RKISP1_CIF_ISP_AE_MEAN_MAX_V12 entries. - */ - if (context.configuration.hw.revision < RKISP1_V12) { - numCells_ = RKISP1_CIF_ISP_AE_MEAN_MAX_V10; - numHistBins_ = RKISP1_CIF_ISP_HIST_BIN_N_MAX_V10; - } else { - numCells_ = RKISP1_CIF_ISP_AE_MEAN_MAX_V12; - numHistBins_ = RKISP1_CIF_ISP_HIST_BIN_N_MAX_V12; - } + context.activeState.agc.constraintMode = + static_cast<controls::AeConstraintModeEnum>(constraintModes().begin()->first); + context.activeState.agc.exposureMode = + static_cast<controls::AeExposureModeEnum>(exposureModeHelpers().begin()->first); + context.activeState.agc.meteringMode = + static_cast<controls::AeMeteringModeEnum>(meteringModes_.begin()->first); - /* - * Define the measurement window for AGC as a centered rectangle - * covering 3/4 of the image width and height. - */ - context.configuration.agc.measureWindow.h_offs = configInfo.outputSize.width / 8; - context.configuration.agc.measureWindow.v_offs = configInfo.outputSize.height / 8; - context.configuration.agc.measureWindow.h_size = 3 * configInfo.outputSize.width / 4; - context.configuration.agc.measureWindow.v_size = 3 * configInfo.outputSize.height / 4; + /* Limit the frame duration to match current initialisation */ + ControlInfo &frameDurationLimits = context.ctrlMap[&controls::FrameDurationLimits]; + context.activeState.agc.minFrameDuration = std::chrono::microseconds(frameDurationLimits.min().get<int64_t>()); + context.activeState.agc.maxFrameDuration = std::chrono::microseconds(frameDurationLimits.max().get<int64_t>()); + + context.configuration.agc.measureWindow.h_offs = 0; + context.configuration.agc.measureWindow.v_offs = 0; + context.configuration.agc.measureWindow.h_size = configInfo.outputSize.width; + context.configuration.agc.measureWindow.v_size = configInfo.outputSize.height; + + setLimits(context.configuration.sensor.minExposureTime, + context.configuration.sensor.maxExposureTime, + context.configuration.sensor.minAnalogueGain, + context.configuration.sensor.maxAnalogueGain); + + resetFrameCount(); - /* - * \todo Use the upcoming per-frame context API that will provide a - * frame index - */ - frameCount_ = 0; return 0; } @@ -122,18 +218,47 @@ void Agc::queueRequest(IPAContext &context, auto &agc = context.activeState.agc; if (!context.configuration.raw) { - const auto &agcEnable = controls.get(controls::AeEnable); - if (agcEnable && *agcEnable != agc.autoEnabled) { - agc.autoEnabled = *agcEnable; + const auto &aeEnable = controls.get(controls::ExposureTimeMode); + if (aeEnable && + (*aeEnable == controls::ExposureTimeModeAuto) != agc.autoExposureEnabled) { + agc.autoExposureEnabled = (*aeEnable == controls::ExposureTimeModeAuto); + + LOG(RkISP1Agc, Debug) + << (agc.autoExposureEnabled ? "Enabling" : "Disabling") + << " AGC (exposure)"; + + /* + * If we go from auto -> manual with no manual control + * set, use the last computed value, which we don't + * know until prepare() so save this information. + * + * \todo Check the previous frame at prepare() time + * instead of saving a flag here + */ + if (!agc.autoExposureEnabled && !controls.get(controls::ExposureTime)) + frameContext.agc.autoExposureModeChange = true; + } + + const auto &agEnable = controls.get(controls::AnalogueGainMode); + if (agEnable && + (*agEnable == controls::AnalogueGainModeAuto) != agc.autoGainEnabled) { + agc.autoGainEnabled = (*agEnable == controls::AnalogueGainModeAuto); LOG(RkISP1Agc, Debug) - << (agc.autoEnabled ? "Enabling" : "Disabling") - << " AGC"; + << (agc.autoGainEnabled ? "Enabling" : "Disabling") + << " AGC (gain)"; + /* + * If we go from auto -> manual with no manual control + * set, use the last computed value, which we don't + * know until prepare() so save this information. + */ + if (!agc.autoGainEnabled && !controls.get(controls::AnalogueGain)) + frameContext.agc.autoGainModeChange = true; } } const auto &exposure = controls.get(controls::ExposureTime); - if (exposure && !agc.autoEnabled) { + if (exposure && !agc.autoExposureEnabled) { agc.manual.exposure = *exposure * 1.0us / context.configuration.sensor.lineDuration; @@ -142,183 +267,150 @@ void Agc::queueRequest(IPAContext &context, } const auto &gain = controls.get(controls::AnalogueGain); - if (gain && !agc.autoEnabled) { + if (gain && !agc.autoGainEnabled) { agc.manual.gain = *gain; LOG(RkISP1Agc, Debug) << "Set gain to " << agc.manual.gain; } - frameContext.agc.autoEnabled = agc.autoEnabled; + frameContext.agc.autoExposureEnabled = agc.autoExposureEnabled; + frameContext.agc.autoGainEnabled = agc.autoGainEnabled; - if (!frameContext.agc.autoEnabled) { + if (!frameContext.agc.autoExposureEnabled) frameContext.agc.exposure = agc.manual.exposure; + if (!frameContext.agc.autoGainEnabled) frameContext.agc.gain = agc.manual.gain; + + const auto &meteringMode = controls.get(controls::AeMeteringMode); + if (meteringMode) { + frameContext.agc.updateMetering = agc.meteringMode != *meteringMode; + agc.meteringMode = + static_cast<controls::AeMeteringModeEnum>(*meteringMode); } + frameContext.agc.meteringMode = agc.meteringMode; + + const auto &exposureMode = controls.get(controls::AeExposureMode); + if (exposureMode) + agc.exposureMode = + static_cast<controls::AeExposureModeEnum>(*exposureMode); + frameContext.agc.exposureMode = agc.exposureMode; + + const auto &constraintMode = controls.get(controls::AeConstraintMode); + if (constraintMode) + agc.constraintMode = + static_cast<controls::AeConstraintModeEnum>(*constraintMode); + frameContext.agc.constraintMode = agc.constraintMode; + + const auto &frameDurationLimits = controls.get(controls::FrameDurationLimits); + if (frameDurationLimits) { + /* Limit the control value to the limits in ControlInfo */ + ControlInfo &limits = context.ctrlMap[&controls::FrameDurationLimits]; + int64_t minFrameDuration = + std::clamp((*frameDurationLimits).front(), + limits.min().get<int64_t>(), + limits.max().get<int64_t>()); + int64_t maxFrameDuration = + std::clamp((*frameDurationLimits).back(), + limits.min().get<int64_t>(), + limits.max().get<int64_t>()); + + agc.minFrameDuration = std::chrono::microseconds(minFrameDuration); + agc.maxFrameDuration = std::chrono::microseconds(maxFrameDuration); + } + frameContext.agc.minFrameDuration = agc.minFrameDuration; + frameContext.agc.maxFrameDuration = agc.maxFrameDuration; } /** * \copydoc libcamera::ipa::Algorithm::prepare */ void Agc::prepare(IPAContext &context, const uint32_t frame, - IPAFrameContext &frameContext, rkisp1_params_cfg *params) -{ - if (frameContext.agc.autoEnabled) { - frameContext.agc.exposure = context.activeState.agc.automatic.exposure; - frameContext.agc.gain = context.activeState.agc.automatic.gain; - } - - if (frame > 0) - return; - - /* Configure the measurement window. */ - params->meas.aec_config.meas_window = context.configuration.agc.measureWindow; - /* Use a continuous method for measure. */ - params->meas.aec_config.autostop = RKISP1_CIF_ISP_EXP_CTRL_AUTOSTOP_0; - /* Estimate Y as (R + G + B) x (85/256). */ - params->meas.aec_config.mode = RKISP1_CIF_ISP_EXP_MEASURING_MODE_1; - - params->module_cfg_update |= RKISP1_CIF_ISP_MODULE_AEC; - params->module_ens |= RKISP1_CIF_ISP_MODULE_AEC; - params->module_en_update |= RKISP1_CIF_ISP_MODULE_AEC; - - /* Configure histogram. */ - params->meas.hst_config.meas_window = context.configuration.agc.measureWindow; - /* Produce the luminance histogram. */ - params->meas.hst_config.mode = RKISP1_CIF_ISP_HISTOGRAM_MODE_Y_HISTOGRAM; - /* Set an average weighted histogram. */ - for (unsigned int histBin = 0; histBin < numHistBins_; histBin++) - params->meas.hst_config.hist_weight[histBin] = 1; - /* Step size can't be less than 3. */ - params->meas.hst_config.histogram_predivider = 4; - - /* Update the configuration for histogram. */ - params->module_cfg_update |= RKISP1_CIF_ISP_MODULE_HST; - /* Enable the histogram measure unit. */ - params->module_ens |= RKISP1_CIF_ISP_MODULE_HST; - params->module_en_update |= RKISP1_CIF_ISP_MODULE_HST; -} - -/** - * \brief Apply a filter on the exposure value to limit the speed of changes - * \param[in] exposureValue The target exposure from the AGC algorithm - * - * The speed of the filter is adaptive, and will produce the target quicker - * during startup, or when the target exposure is within 20% of the most recent - * filter output. - * - * \return The filtered exposure - */ -utils::Duration Agc::filterExposure(utils::Duration exposureValue) + IPAFrameContext &frameContext, RkISP1Params *params) { - double speed = 0.2; + uint32_t activeAutoExposure = context.activeState.agc.automatic.exposure; + double activeAutoGain = context.activeState.agc.automatic.gain; - /* Adapt instantly if we are in startup phase. */ - if (frameCount_ < kNumStartupFrames) - speed = 1.0; + /* Populate exposure and gain in auto mode */ + if (frameContext.agc.autoExposureEnabled) + frameContext.agc.exposure = activeAutoExposure; + if (frameContext.agc.autoGainEnabled) + frameContext.agc.gain = activeAutoGain; /* - * If we are close to the desired result, go faster to avoid making - * multiple micro-adjustments. - * \todo Make this customisable? + * Populate manual exposure and gain from the active auto values when + * transitioning from auto to manual */ - if (filteredExposure_ < 1.2 * exposureValue && - filteredExposure_ > 0.8 * exposureValue) - speed = sqrt(speed); - - filteredExposure_ = speed * exposureValue + - filteredExposure_ * (1.0 - speed); - - LOG(RkISP1Agc, Debug) << "After filtering, exposure " << filteredExposure_; - - return filteredExposure_; -} - -/** - * \brief Estimate the new exposure and gain values - * \param[inout] context The shared IPA Context - * \param[in] frameContext The FrameContext for this frame - * \param[in] yGain The gain calculated on the current brightness level - * \param[in] iqMeanGain The gain calculated based on the relative luminance target - */ -void Agc::computeExposure(IPAContext &context, IPAFrameContext &frameContext, - double yGain, double iqMeanGain) -{ - IPASessionConfiguration &configuration = context.configuration; - IPAActiveState &activeState = context.activeState; - - /* Get the effective exposure and gain applied on the sensor. */ - uint32_t exposure = frameContext.sensor.exposure; - double analogueGain = frameContext.sensor.gain; - - /* Use the highest of the two gain estimates. */ - double evGain = std::max(yGain, iqMeanGain); - - utils::Duration minShutterSpeed = configuration.sensor.minShutterSpeed; - utils::Duration maxShutterSpeed = std::min(configuration.sensor.maxShutterSpeed, - kMaxShutterSpeed); - - double minAnalogueGain = std::max(configuration.sensor.minAnalogueGain, - kMinAnalogueGain); - double maxAnalogueGain = configuration.sensor.maxAnalogueGain; + if (!frameContext.agc.autoExposureEnabled && frameContext.agc.autoExposureModeChange) { + context.activeState.agc.manual.exposure = activeAutoExposure; + frameContext.agc.exposure = activeAutoExposure; + } + if (!frameContext.agc.autoGainEnabled && frameContext.agc.autoGainModeChange) { + context.activeState.agc.manual.gain = activeAutoGain; + frameContext.agc.gain = activeAutoGain; + } - /* Consider within 1% of the target as correctly exposed. */ - if (utils::abs_diff(evGain, 1.0) < 0.01) + if (frame > 0 && !frameContext.agc.updateMetering) return; - /* extracted from Rpi::Agc::computeTargetExposure. */ - - /* Calculate the shutter time in seconds. */ - utils::Duration currentShutter = exposure * configuration.sensor.lineDuration; - - /* - * Update the exposure value for the next computation using the values - * of exposure and gain really used by the sensor. - */ - utils::Duration effectiveExposureValue = currentShutter * analogueGain; - - LOG(RkISP1Agc, Debug) << "Actual total exposure " << currentShutter * analogueGain - << " Shutter speed " << currentShutter - << " Gain " << analogueGain - << " Needed ev gain " << evGain; - /* - * Calculate the current exposure value for the scene as the latest - * exposure value applied multiplied by the new estimated gain. + * Configure the AEC measurements. Set the window, measure + * continuously, and estimate Y as (R + G + B) x (85/256). */ - utils::Duration exposureValue = effectiveExposureValue * evGain; + auto aecConfig = params->block<BlockType::Aec>(); + aecConfig.setEnabled(true); - /* Clamp the exposure value to the min and max authorized. */ - utils::Duration maxTotalExposure = maxShutterSpeed * maxAnalogueGain; - exposureValue = std::min(exposureValue, maxTotalExposure); - LOG(RkISP1Agc, Debug) << "Target total exposure " << exposureValue - << ", maximum is " << maxTotalExposure; + aecConfig->meas_window = context.configuration.agc.measureWindow; + aecConfig->autostop = RKISP1_CIF_ISP_EXP_CTRL_AUTOSTOP_0; + aecConfig->mode = RKISP1_CIF_ISP_EXP_MEASURING_MODE_1; /* - * Divide the exposure value as new exposure and gain values. - * \todo estimate if we need to desaturate + * Configure the histogram measurement. Set the window, produce a + * luminance histogram, and set the weights and predivider. */ - exposureValue = filterExposure(exposureValue); - - /* - * Push the shutter time up to the maximum first, and only then - * increase the gain. - */ - utils::Duration shutterTime = std::clamp<utils::Duration>(exposureValue / minAnalogueGain, - minShutterSpeed, maxShutterSpeed); - double stepGain = std::clamp(exposureValue / shutterTime, - minAnalogueGain, maxAnalogueGain); - LOG(RkISP1Agc, Debug) << "Divided up shutter and gain are " - << shutterTime << " and " - << stepGain; + auto hstConfig = params->block<BlockType::Hst>(); + hstConfig.setEnabled(true); + + hstConfig->meas_window = context.configuration.agc.measureWindow; + hstConfig->mode = RKISP1_CIF_ISP_HISTOGRAM_MODE_Y_HISTOGRAM; + + Span<uint8_t> weights{ + hstConfig->hist_weight, + context.hw->numHistogramWeights + }; + std::vector<uint8_t> &modeWeights = meteringModes_.at(frameContext.agc.meteringMode); + std::copy(modeWeights.begin(), modeWeights.end(), weights.begin()); + + struct rkisp1_cif_isp_window window = hstConfig->meas_window; + Size windowSize = { window.h_size, window.v_size }; + hstConfig->histogram_predivider = + computeHistogramPredivider(windowSize, + static_cast<rkisp1_cif_isp_histogram_mode>(hstConfig->mode)); +} - /* Update the estimated exposure and gain. */ - activeState.agc.automatic.exposure = shutterTime / configuration.sensor.lineDuration; - activeState.agc.automatic.gain = stepGain; +void Agc::fillMetadata(IPAContext &context, IPAFrameContext &frameContext, + ControlList &metadata) +{ + utils::Duration exposureTime = context.configuration.sensor.lineDuration + * frameContext.sensor.exposure; + metadata.set(controls::AnalogueGain, frameContext.sensor.gain); + metadata.set(controls::ExposureTime, exposureTime.get<std::micro>()); + metadata.set(controls::FrameDuration, frameContext.agc.frameDuration.get<std::micro>()); + metadata.set(controls::ExposureTimeMode, + frameContext.agc.autoExposureEnabled + ? controls::ExposureTimeModeAuto + : controls::ExposureTimeModeManual); + metadata.set(controls::AnalogueGainMode, + frameContext.agc.autoGainEnabled + ? controls::AnalogueGainModeAuto + : controls::AnalogueGainModeManual); + + metadata.set(controls::AeMeteringMode, frameContext.agc.meteringMode); + metadata.set(controls::AeExposureMode, frameContext.agc.exposureMode); + metadata.set(controls::AeConstraintMode, frameContext.agc.constraintMode); } /** * \brief Estimate the relative luminance of the frame with a given gain - * \param[in] ae The RkISP1 statistics and ISP results * \param[in] gain The gain to apply to the frame * * This function estimates the average relative luminance of the frame that @@ -332,8 +424,6 @@ void Agc::computeExposure(IPAContext &context, IPAFrameContext &frameContext, * YUV doesn't take into account the fact that the R, G and B components * contribute differently to the relative luminance. * - * \todo Have a dedicated YUV algorithm ? - * * The values are normalized to the [0.0, 1.0] range, where 1.0 corresponds to a * theoretical perfect reflector of 100% reference white. * @@ -342,46 +432,43 @@ void Agc::computeExposure(IPAContext &context, IPAFrameContext &frameContext, * * \return The relative luminance */ -double Agc::estimateLuminance(const rkisp1_cif_isp_ae_stat *ae, - double gain) +double Agc::estimateLuminance(double gain) const { + ASSERT(expMeans_.size() == weights_.size()); double ySum = 0.0; + double wSum = 0.0; /* Sum the averages, saturated to 255. */ - for (unsigned int aeCell = 0; aeCell < numCells_; aeCell++) - ySum += std::min(ae->exp_mean[aeCell] * gain, 255.0); + for (unsigned i = 0; i < expMeans_.size(); i++) { + double w = weights_[i]; + ySum += std::min(expMeans_[i] * gain, 255.0) * w; + wSum += w; + } /* \todo Weight with the AWB gains */ - return ySum / numCells_ / 255; + return ySum / wSum / 255; } /** - * \brief Estimate the mean value of the top 2% of the histogram - * \param[in] hist The histogram statistics computed by the ImgU - * \return The mean value of the top 2% of the histogram + * \brief Process frame duration and compute vblank + * \param[in] context The shared IPA context + * \param[in] frameContext The current frame context + * \param[in] frameDuration The target frame duration + * + * Compute and populate vblank from the target frame duration. */ -double Agc::measureBrightness(const rkisp1_cif_isp_hist_stat *hist) const +void Agc::processFrameDuration(IPAContext &context, + IPAFrameContext &frameContext, + utils::Duration frameDuration) { - Histogram histogram{ Span<const uint32_t>(hist->hist_bins, numHistBins_) }; - /* Estimate the quantile mean of the top 2% of the histogram. */ - return histogram.interQuantileMean(0.98, 1.0); -} + IPACameraSensorInfo &sensorInfo = context.sensorInfo; + utils::Duration lineDuration = context.configuration.sensor.lineDuration; -void Agc::fillMetadata(IPAContext &context, IPAFrameContext &frameContext, - ControlList &metadata) -{ - utils::Duration exposureTime = context.configuration.sensor.lineDuration - * frameContext.sensor.exposure; - metadata.set(controls::AnalogueGain, frameContext.sensor.gain); - metadata.set(controls::ExposureTime, exposureTime.get<std::micro>()); + frameContext.agc.vblank = (frameDuration / lineDuration) - sensorInfo.outputSize.height; - /* \todo Use VBlank value calculated from each frame exposure. */ - uint32_t vTotal = context.configuration.sensor.size.height - + context.configuration.sensor.defVBlank; - utils::Duration frameDuration = context.configuration.sensor.lineDuration - * vTotal; - metadata.set(controls::FrameDuration, frameDuration.get<std::micro>()); + /* Update frame duration accounting for line length quantization. */ + frameContext.agc.frameDuration = (sensorInfo.outputSize.height + frameContext.agc.vblank) * lineDuration; } /** @@ -400,10 +487,20 @@ void Agc::process(IPAContext &context, [[maybe_unused]] const uint32_t frame, ControlList &metadata) { if (!stats) { + processFrameDuration(context, frameContext, + frameContext.agc.minFrameDuration); + fillMetadata(context, frameContext, metadata); + return; + } + + if (!(stats->meas_type & RKISP1_CIF_ISP_STAT_AUTOEXP)) { fillMetadata(context, frameContext, metadata); + LOG(RkISP1Agc, Error) << "AUTOEXP data is missing in statistics"; return; } + const utils::Duration &lineDuration = context.configuration.sensor.lineDuration; + /* * \todo Verify that the exposure and gain applied by the sensor for * this frame match what has been requested. This isn't a hard @@ -413,40 +510,77 @@ void Agc::process(IPAContext &context, [[maybe_unused]] const uint32_t frame, */ const rkisp1_cif_isp_stat *params = &stats->params; - ASSERT(stats->meas_type & RKISP1_CIF_ISP_STAT_AUTOEXP); - const rkisp1_cif_isp_ae_stat *ae = ¶ms->ae; - const rkisp1_cif_isp_hist_stat *hist = ¶ms->hist; - - double iqMean = measureBrightness(hist); - double iqMeanGain = kEvGainTarget * numHistBins_ / iqMean; + /* The lower 4 bits are fractional and meant to be discarded. */ + Histogram hist({ params->hist.hist_bins, context.hw->numHistogramBins }, + [](uint32_t x) { return x >> 4; }); + expMeans_ = { params->ae.exp_mean, context.hw->numAeCells }; + std::vector<uint8_t> &modeWeights = meteringModes_.at(frameContext.agc.meteringMode); + weights_ = { modeWeights.data(), modeWeights.size() }; /* - * Estimate the gain needed to achieve a relative luminance target. To - * account for non-linearity caused by saturation, the value needs to be - * estimated in an iterative process, as multiplying by a gain will not - * increase the relative luminance by the same factor if some image - * regions are saturated. + * Set the AGC limits using the fixed exposure time and/or gain in + * manual mode, or the sensor limits in auto mode. */ - double yGain = 1.0; - double yTarget = kRelativeLuminanceTarget; - - for (unsigned int i = 0; i < 8; i++) { - double yValue = estimateLuminance(ae, yGain); - double extra_gain = std::min(10.0, yTarget / (yValue + .001)); - - yGain *= extra_gain; - LOG(RkISP1Agc, Debug) << "Y value: " << yValue - << ", Y target: " << yTarget - << ", gives gain " << yGain; - if (extra_gain < 1.01) - break; + utils::Duration minExposureTime; + utils::Duration maxExposureTime; + double minAnalogueGain; + double maxAnalogueGain; + + if (frameContext.agc.autoExposureEnabled) { + minExposureTime = context.configuration.sensor.minExposureTime; + maxExposureTime = std::clamp(frameContext.agc.maxFrameDuration, + context.configuration.sensor.minExposureTime, + context.configuration.sensor.maxExposureTime); + } else { + minExposureTime = context.configuration.sensor.lineDuration + * frameContext.agc.exposure; + maxExposureTime = minExposureTime; } - computeExposure(context, frameContext, yGain, iqMeanGain); - frameCount_++; + if (frameContext.agc.autoGainEnabled) { + minAnalogueGain = context.configuration.sensor.minAnalogueGain; + maxAnalogueGain = context.configuration.sensor.maxAnalogueGain; + } else { + minAnalogueGain = frameContext.agc.gain; + maxAnalogueGain = frameContext.agc.gain; + } + + setLimits(minExposureTime, maxExposureTime, minAnalogueGain, maxAnalogueGain); + + /* + * The Agc algorithm needs to know the effective exposure value that was + * applied to the sensor when the statistics were collected. + */ + utils::Duration exposureTime = lineDuration * frameContext.sensor.exposure; + double analogueGain = frameContext.sensor.gain; + utils::Duration effectiveExposureValue = exposureTime * analogueGain; + + utils::Duration newExposureTime; + double aGain, dGain; + std::tie(newExposureTime, aGain, dGain) = + calculateNewEv(frameContext.agc.constraintMode, + frameContext.agc.exposureMode, + hist, effectiveExposureValue); + + LOG(RkISP1Agc, Debug) + << "Divided up exposure time, analogue gain and digital gain are " + << newExposureTime << ", " << aGain << " and " << dGain; + + IPAActiveState &activeState = context.activeState; + /* Update the estimated exposure and gain. */ + activeState.agc.automatic.exposure = newExposureTime / lineDuration; + activeState.agc.automatic.gain = aGain; + + /* + * Expand the target frame duration so that we do not run faster than + * the minimum frame duration when we have short exposures. + */ + processFrameDuration(context, frameContext, + std::max(frameContext.agc.minFrameDuration, newExposureTime)); fillMetadata(context, frameContext, metadata); + expMeans_ = {}; } REGISTER_IPA_ALGORITHM(Agc, "Agc") diff --git a/src/ipa/rkisp1/algorithms/agc.h b/src/ipa/rkisp1/algorithms/agc.h index 8a222637..7867eed9 100644 --- a/src/ipa/rkisp1/algorithms/agc.h +++ b/src/ipa/rkisp1/algorithms/agc.h @@ -2,29 +2,33 @@ /* * Copyright (C) 2021-2022, Ideas On Board * - * agc.h - RkISP1 AGC/AEC mean-based control algorithm + * RkISP1 AGC/AEC mean-based control algorithm */ #pragma once #include <linux/rkisp1-config.h> +#include <libcamera/base/span.h> #include <libcamera/base/utils.h> #include <libcamera/geometry.h> +#include "libipa/agc_mean_luminance.h" + #include "algorithm.h" namespace libcamera { namespace ipa::rkisp1::algorithms { -class Agc : public Algorithm +class Agc : public Algorithm, public AgcMeanLuminance { public: Agc(); ~Agc() = default; + int init(IPAContext &context, const YamlObject &tuningData) override; int configure(IPAContext &context, const IPACameraSensorInfo &configInfo) override; void queueRequest(IPAContext &context, const uint32_t frame, @@ -32,27 +36,28 @@ public: const ControlList &controls) override; void prepare(IPAContext &context, const uint32_t frame, IPAFrameContext &frameContext, - rkisp1_params_cfg *params) override; + RkISP1Params *params) override; void process(IPAContext &context, const uint32_t frame, IPAFrameContext &frameContext, const rkisp1_stat_buffer *stats, ControlList &metadata) override; private: - void computeExposure(IPAContext &Context, IPAFrameContext &frameContext, - double yGain, double iqMeanGain); - utils::Duration filterExposure(utils::Duration exposureValue); - double estimateLuminance(const rkisp1_cif_isp_ae_stat *ae, double gain); - double measureBrightness(const rkisp1_cif_isp_hist_stat *hist) const; + int parseMeteringModes(IPAContext &context, const YamlObject &tuningData); + uint8_t computeHistogramPredivider(const Size &size, + enum rkisp1_cif_isp_histogram_mode mode); + void fillMetadata(IPAContext &context, IPAFrameContext &frameContext, ControlList &metadata); + double estimateLuminance(double gain) const override; + void processFrameDuration(IPAContext &context, + IPAFrameContext &frameContext, + utils::Duration frameDuration); - uint64_t frameCount_; - - uint32_t numCells_; - uint32_t numHistBins_; + Span<const uint8_t> expMeans_; + Span<const uint8_t> weights_; - utils::Duration filteredExposure_; + std::map<int32_t, std::vector<uint8_t>> meteringModes_; }; } /* namespace ipa::rkisp1::algorithms */ diff --git a/src/ipa/rkisp1/algorithms/algorithm.h b/src/ipa/rkisp1/algorithms/algorithm.h index 9454c9a1..715cfcd8 100644 --- a/src/ipa/rkisp1/algorithms/algorithm.h +++ b/src/ipa/rkisp1/algorithms/algorithm.h @@ -2,7 +2,7 @@ /* * Copyright (C) 2021, Ideas On Board * - * algorithm.h - RkISP1 control algorithm interface + * RkISP1 control algorithm interface */ #pragma once diff --git a/src/ipa/rkisp1/algorithms/awb.cpp b/src/ipa/rkisp1/algorithms/awb.cpp index 744f4a38..399fb51b 100644 --- a/src/ipa/rkisp1/algorithms/awb.cpp +++ b/src/ipa/rkisp1/algorithms/awb.cpp @@ -2,20 +2,24 @@ /* * Copyright (C) 2021-2022, Ideas On Board * - * awb.cpp - AWB control algorithm + * AWB control algorithm */ #include "awb.h" #include <algorithm> -#include <cmath> -#include <iomanip> +#include <ios> #include <libcamera/base/log.h> #include <libcamera/control_ids.h> + #include <libcamera/ipa/core_ipa_interface.h> +#include "libipa/awb_bayes.h" +#include "libipa/awb_grey.h" +#include "libipa/colours.h" + /** * \file awb.h */ @@ -31,27 +35,107 @@ namespace ipa::rkisp1::algorithms { LOG_DEFINE_CATEGORY(RkISP1Awb) +constexpr int32_t kMinColourTemperature = 2500; +constexpr int32_t kMaxColourTemperature = 10000; +constexpr int32_t kDefaultColourTemperature = 5000; + /* Minimum mean value below which AWB can't operate. */ constexpr double kMeanMinThreshold = 2.0; +class RkISP1AwbStats final : public AwbStats +{ +public: + RkISP1AwbStats(const RGB<double> &rgbMeans) + : rgbMeans_(rgbMeans) + { + rg_ = rgbMeans_.r() / rgbMeans_.g(); + bg_ = rgbMeans_.b() / rgbMeans_.g(); + } + + double computeColourError(const RGB<double> &gains) const override + { + /* + * Compute the sum of the squared colour error (non-greyness) as + * it appears in the log likelihood equation. + */ + double deltaR = gains.r() * rg_ - 1.0; + double deltaB = gains.b() * bg_ - 1.0; + double delta2 = deltaR * deltaR + deltaB * deltaB; + + return delta2; + } + + RGB<double> rgbMeans() const override + { + return rgbMeans_; + } + +private: + RGB<double> rgbMeans_; + double rg_; + double bg_; +}; + Awb::Awb() : rgbMode_(false) { } /** + * \copydoc libcamera::ipa::Algorithm::init + */ +int Awb::init(IPAContext &context, const YamlObject &tuningData) +{ + auto &cmap = context.ctrlMap; + cmap[&controls::ColourTemperature] = ControlInfo(kMinColourTemperature, + kMaxColourTemperature, + kDefaultColourTemperature); + cmap[&controls::AwbEnable] = ControlInfo(false, true); + cmap[&controls::ColourGains] = ControlInfo(0.0f, 3.996f, 1.0f); + + if (!tuningData.contains("algorithm")) + LOG(RkISP1Awb, Info) << "No AWB algorithm specified." + << " Default to grey world"; + + auto mode = tuningData["algorithm"].get<std::string>("grey"); + if (mode == "grey") { + awbAlgo_ = std::make_unique<AwbGrey>(); + } else if (mode == "bayes") { + awbAlgo_ = std::make_unique<AwbBayes>(); + } else { + LOG(RkISP1Awb, Error) << "Unknown AWB algorithm: " << mode; + return -EINVAL; + } + LOG(RkISP1Awb, Debug) << "Using AWB algorithm: " << mode; + + int ret = awbAlgo_->init(tuningData); + if (ret) { + LOG(RkISP1Awb, Error) << "Failed to init AWB algorithm"; + return ret; + } + + const auto &src = awbAlgo_->controls(); + cmap.insert(src.begin(), src.end()); + + return 0; +} + +/** * \copydoc libcamera::ipa::Algorithm::configure */ int Awb::configure(IPAContext &context, const IPACameraSensorInfo &configInfo) { - context.activeState.awb.gains.manual.red = 1.0; - context.activeState.awb.gains.manual.blue = 1.0; - context.activeState.awb.gains.manual.green = 1.0; - context.activeState.awb.gains.automatic.red = 1.0; - context.activeState.awb.gains.automatic.blue = 1.0; - context.activeState.awb.gains.automatic.green = 1.0; + context.activeState.awb.manual.gains = RGB<double>{ 1.0 }; + auto gains = awbAlgo_->gainsFromColourTemperature(kDefaultColourTemperature); + if (gains) + context.activeState.awb.automatic.gains = *gains; + else + context.activeState.awb.automatic.gains = RGB<double>{ 1.0 }; + context.activeState.awb.autoEnabled = true; + context.activeState.awb.manual.temperatureK = kDefaultColourTemperature; + context.activeState.awb.automatic.temperatureK = kDefaultColourTemperature; /* * Define the measurement window for AWB as a centered rectangle @@ -85,64 +169,83 @@ void Awb::queueRequest(IPAContext &context, << (*awbEnable ? "Enabling" : "Disabling") << " AWB"; } - const auto &colourGains = controls.get(controls::ColourGains); - if (colourGains && !awb.autoEnabled) { - awb.gains.manual.red = (*colourGains)[0]; - awb.gains.manual.blue = (*colourGains)[1]; - - LOG(RkISP1Awb, Debug) - << "Set colour gains to red: " << awb.gains.manual.red - << ", blue: " << awb.gains.manual.blue; - } + awbAlgo_->handleControls(controls); frameContext.awb.autoEnabled = awb.autoEnabled; - if (!awb.autoEnabled) { - frameContext.awb.gains.red = awb.gains.manual.red; - frameContext.awb.gains.green = 1.0; - frameContext.awb.gains.blue = awb.gains.manual.blue; + if (awb.autoEnabled) + return; + + const auto &colourGains = controls.get(controls::ColourGains); + const auto &colourTemperature = controls.get(controls::ColourTemperature); + bool update = false; + if (colourGains) { + awb.manual.gains.r() = (*colourGains)[0]; + awb.manual.gains.b() = (*colourGains)[1]; + /* + * \todo Colour temperature reported in metadata is now + * incorrect, as we can't deduce the temperature from the gains. + * This will be fixed with the bayes AWB algorithm. + */ + update = true; + } else if (colourTemperature) { + awb.manual.temperatureK = *colourTemperature; + const auto &gains = awbAlgo_->gainsFromColourTemperature(*colourTemperature); + if (gains) { + awb.manual.gains.r() = gains->r(); + awb.manual.gains.b() = gains->b(); + update = true; + } } + + if (update) + LOG(RkISP1Awb, Debug) + << "Set colour gains to " << awb.manual.gains; + + frameContext.awb.gains = awb.manual.gains; + frameContext.awb.temperatureK = awb.manual.temperatureK; } /** * \copydoc libcamera::ipa::Algorithm::prepare */ void Awb::prepare(IPAContext &context, const uint32_t frame, - IPAFrameContext &frameContext, rkisp1_params_cfg *params) + IPAFrameContext &frameContext, RkISP1Params *params) { /* * This is the latest time we can read the active state. This is the * most up-to-date automatic values we can read. */ if (frameContext.awb.autoEnabled) { - frameContext.awb.gains.red = context.activeState.awb.gains.automatic.red; - frameContext.awb.gains.green = context.activeState.awb.gains.automatic.green; - frameContext.awb.gains.blue = context.activeState.awb.gains.automatic.blue; + const auto &awb = context.activeState.awb; + frameContext.awb.gains = awb.automatic.gains; + frameContext.awb.temperatureK = awb.automatic.temperatureK; } - params->others.awb_gain_config.gain_green_b = 256 * frameContext.awb.gains.green; - params->others.awb_gain_config.gain_blue = 256 * frameContext.awb.gains.blue; - params->others.awb_gain_config.gain_red = 256 * frameContext.awb.gains.red; - params->others.awb_gain_config.gain_green_r = 256 * frameContext.awb.gains.green; + auto gainConfig = params->block<BlockType::AwbGain>(); + gainConfig.setEnabled(true); - /* Update the gains. */ - params->module_cfg_update |= RKISP1_CIF_ISP_MODULE_AWB_GAIN; + gainConfig->gain_green_b = std::clamp<int>(256 * frameContext.awb.gains.g(), 0, 0x3ff); + gainConfig->gain_blue = std::clamp<int>(256 * frameContext.awb.gains.b(), 0, 0x3ff); + gainConfig->gain_red = std::clamp<int>(256 * frameContext.awb.gains.r(), 0, 0x3ff); + gainConfig->gain_green_r = std::clamp<int>(256 * frameContext.awb.gains.g(), 0, 0x3ff); /* If we have already set the AWB measurement parameters, return. */ if (frame > 0) return; - rkisp1_cif_isp_awb_meas_config &awb_config = params->meas.awb_meas_config; + auto awbConfig = params->block<BlockType::Awb>(); + awbConfig.setEnabled(true); /* Configure the measure window for AWB. */ - awb_config.awb_wnd = context.configuration.awb.measureWindow; + awbConfig->awb_wnd = context.configuration.awb.measureWindow; /* Number of frames to use to estimate the means (0 means 1 frame). */ - awb_config.frames = 0; + awbConfig->frames = 0; /* Select RGB or YCbCr means measurement. */ if (rgbMode_) { - awb_config.awb_mode = RKISP1_CIF_ISP_AWB_MODE_RGB; + awbConfig->awb_mode = RKISP1_CIF_ISP_AWB_MODE_RGB; /* * For RGB-based measurements, pixels are selected with maximum @@ -150,19 +253,19 @@ void Awb::prepare(IPAContext &context, const uint32_t frame, * awb_ref_cr, awb_min_y and awb_ref_cb respectively. The other * values are not used, set them to 0. */ - awb_config.awb_ref_cr = 250; - awb_config.min_y = 250; - awb_config.awb_ref_cb = 250; + awbConfig->awb_ref_cr = 250; + awbConfig->min_y = 250; + awbConfig->awb_ref_cb = 250; - awb_config.max_y = 0; - awb_config.min_c = 0; - awb_config.max_csum = 0; + awbConfig->max_y = 0; + awbConfig->min_c = 0; + awbConfig->max_csum = 0; } else { - awb_config.awb_mode = RKISP1_CIF_ISP_AWB_MODE_YCBCR; + awbConfig->awb_mode = RKISP1_CIF_ISP_AWB_MODE_YCBCR; /* Set the reference Cr and Cb (AWB target) to white. */ - awb_config.awb_ref_cb = 128; - awb_config.awb_ref_cr = 128; + awbConfig->awb_ref_cb = 128; + awbConfig->awb_ref_cr = 128; /* * Filter out pixels based on luminance and chrominance values. @@ -170,36 +273,11 @@ void Awb::prepare(IPAContext &context, const uint32_t frame, * range, while the acceptable chroma values are specified with * a minimum of 16 and a maximum Cb+Cr sum of 250. */ - awb_config.min_y = 16; - awb_config.max_y = 250; - awb_config.min_c = 16; - awb_config.max_csum = 250; + awbConfig->min_y = 16; + awbConfig->max_y = 250; + awbConfig->min_c = 16; + awbConfig->max_csum = 250; } - - /* Enable the AWB gains. */ - params->module_en_update |= RKISP1_CIF_ISP_MODULE_AWB_GAIN; - params->module_ens |= RKISP1_CIF_ISP_MODULE_AWB_GAIN; - - /* Update the AWB measurement parameters and enable the AWB module. */ - params->module_cfg_update |= RKISP1_CIF_ISP_MODULE_AWB; - params->module_en_update |= RKISP1_CIF_ISP_MODULE_AWB; - params->module_ens |= RKISP1_CIF_ISP_MODULE_AWB; -} - -uint32_t Awb::estimateCCT(double red, double green, double blue) -{ - /* Convert the RGB values to CIE tristimulus values (XYZ) */ - double X = (-0.14282) * (red) + (1.54924) * (green) + (-0.95641) * (blue); - double Y = (-0.32466) * (red) + (1.57837) * (green) + (-0.73191) * (blue); - double Z = (-0.68202) * (red) + (0.77073) * (green) + (0.56332) * (blue); - - /* Calculate the normalized chromaticity values */ - double x = X / (X + Y + Z); - double y = Y / (X + Y + Z); - - /* Calculate CCT */ - double n = (x - 0.3320) / (0.1858 - y); - return 449 * n * n * n + 3525 * n * n + 6823.3 * n + 5520.33; } /** @@ -211,41 +289,111 @@ void Awb::process(IPAContext &context, const rkisp1_stat_buffer *stats, ControlList &metadata) { + IPAActiveState &activeState = context.activeState; + + metadata.set(controls::AwbEnable, frameContext.awb.autoEnabled); + metadata.set(controls::ColourGains, { + static_cast<float>(frameContext.awb.gains.r()), + static_cast<float>(frameContext.awb.gains.b()) + }); + metadata.set(controls::ColourTemperature, frameContext.awb.temperatureK); + + if (!stats || !(stats->meas_type & RKISP1_CIF_ISP_STAT_AWB)) { + LOG(RkISP1Awb, Error) << "AWB data is missing in statistics"; + return; + } + const rkisp1_cif_isp_stat *params = &stats->params; const rkisp1_cif_isp_awb_stat *awb = ¶ms->awb; - IPAActiveState &activeState = context.activeState; - double greenMean; - double redMean; - double blueMean; + + if (awb->awb_mean[0].cnt == 0) { + LOG(RkISP1Awb, Debug) << "AWB statistics are empty"; + return; + } + + RGB<double> rgbMeans = calculateRgbMeans(frameContext, awb); + + /* + * If the means are too small we don't have enough information to + * meaningfully calculate gains. Freeze the algorithm in that case. + */ + if (rgbMeans.r() < kMeanMinThreshold && rgbMeans.g() < kMeanMinThreshold && + rgbMeans.b() < kMeanMinThreshold) + return; + + RkISP1AwbStats awbStats{ rgbMeans }; + AwbResult awbResult = awbAlgo_->calculateAwb(awbStats, frameContext.lux.lux); + + /* + * Clamp the gain values to the hardware, which expresses gains as Q2.8 + * unsigned integer values. Set the minimum just above zero to avoid + * divisions by zero when computing the raw means in subsequent + * iterations. + */ + awbResult.gains = awbResult.gains.max(1.0 / 256).min(1023.0 / 256); + + /* Filter the values to avoid oscillations. */ + double speed = 0.2; + double ct = awbResult.colourTemperature; + ct = ct * speed + activeState.awb.automatic.temperatureK * (1 - speed); + awbResult.gains = awbResult.gains * speed + + activeState.awb.automatic.gains * (1 - speed); + + activeState.awb.automatic.temperatureK = static_cast<unsigned int>(ct); + activeState.awb.automatic.gains = awbResult.gains; + + LOG(RkISP1Awb, Debug) + << std::showpoint + << "Means " << rgbMeans << ", gains " + << activeState.awb.automatic.gains << ", temp " + << activeState.awb.automatic.temperatureK << "K"; +} + +RGB<double> Awb::calculateRgbMeans(const IPAFrameContext &frameContext, const rkisp1_cif_isp_awb_stat *awb) const +{ + Vector<double, 3> rgbMeans; if (rgbMode_) { - greenMean = awb->awb_mean[0].mean_y_or_g; - redMean = awb->awb_mean[0].mean_cr_or_r; - blueMean = awb->awb_mean[0].mean_cb_or_b; + rgbMeans = {{ + static_cast<double>(awb->awb_mean[0].mean_cr_or_r), + static_cast<double>(awb->awb_mean[0].mean_y_or_g), + static_cast<double>(awb->awb_mean[0].mean_cb_or_b) + }}; } else { /* Get the YCbCr mean values */ - double yMean = awb->awb_mean[0].mean_y_or_g; - double cbMean = awb->awb_mean[0].mean_cb_or_b; - double crMean = awb->awb_mean[0].mean_cr_or_r; + Vector<double, 3> yuvMeans({ + static_cast<double>(awb->awb_mean[0].mean_y_or_g), + static_cast<double>(awb->awb_mean[0].mean_cb_or_b), + static_cast<double>(awb->awb_mean[0].mean_cr_or_r) + }); /* - * Convert from YCbCr to RGB. - * The hardware uses the following formulas: - * Y = 16 + 0.2500 R + 0.5000 G + 0.1094 B + * Convert from YCbCr to RGB. The hardware uses the following + * formulas: + * + * Y = 16 + 0.2500 R + 0.5000 G + 0.1094 B * Cb = 128 - 0.1406 R - 0.2969 G + 0.4375 B * Cr = 128 + 0.4375 R - 0.3750 G - 0.0625 B * - * The inverse matrix is thus: + * This seems to be based on limited range BT.601 with Q1.6 + * precision. + * + * The inverse matrix is: + * * [[1,1636, -0,0623, 1,6008] * [1,1636, -0,4045, -0,7949] * [1,1636, 1,9912, -0,0250]] */ - yMean -= 16; - cbMean -= 128; - crMean -= 128; - redMean = 1.1636 * yMean - 0.0623 * cbMean + 1.6008 * crMean; - greenMean = 1.1636 * yMean - 0.4045 * cbMean - 0.7949 * crMean; - blueMean = 1.1636 * yMean + 1.9912 * cbMean - 0.0250 * crMean; + static const Matrix<double, 3, 3> yuv2rgbMatrix({ + 1.1636, -0.0623, 1.6008, + 1.1636, -0.4045, -0.7949, + 1.1636, 1.9912, -0.0250 + }); + static const Vector<double, 3> yuv2rgbOffset({ + 16, 128, 128 + }); + + rgbMeans = yuv2rgbMatrix * (yuvMeans - yuv2rgbOffset); /* * Due to hardware rounding errors in the YCbCr means, the @@ -253,73 +401,23 @@ void Awb::process(IPAContext &context, * negative gains, messing up calculation. Prevent this by * clamping the means to positive values. */ - redMean = std::max(redMean, 0.0); - greenMean = std::max(greenMean, 0.0); - blueMean = std::max(blueMean, 0.0); + rgbMeans = rgbMeans.max(0.0); } /* - * The ISP computes the AWB means after applying the colour gains, - * divide by the gains that were used to get the raw means from the - * sensor. - */ - redMean /= frameContext.awb.gains.red; - greenMean /= frameContext.awb.gains.green; - blueMean /= frameContext.awb.gains.blue; - - /* - * If the means are too small we don't have enough information to - * meaningfully calculate gains. Freeze the algorithm in that case. - */ - if (redMean < kMeanMinThreshold && greenMean < kMeanMinThreshold && - blueMean < kMeanMinThreshold) { - frameContext.awb.temperatureK = activeState.awb.temperatureK; - return; - } - - activeState.awb.temperatureK = estimateCCT(redMean, greenMean, blueMean); - - /* - * Estimate the red and blue gains to apply in a grey world. The green - * gain is hardcoded to 1.0. Avoid divisions by zero by clamping the - * divisor to a minimum value of 1.0. + * The ISP computes the AWB means after applying the CCM. Apply the + * inverse as we want to get the raw means before the colour gains. */ - double redGain = greenMean / std::max(redMean, 1.0); - double blueGain = greenMean / std::max(blueMean, 1.0); + rgbMeans = frameContext.ccm.ccm.inverse() * rgbMeans; /* - * Clamp the gain values to the hardware, which expresses gains as Q2.8 - * unsigned integer values. Set the minimum just above zero to avoid - * divisions by zero when computing the raw means in subsequent - * iterations. + * The ISP computes the AWB means after applying the colour gains, + * divide by the gains that were used to get the raw means from the + * sensor. Apply a minimum value to avoid divisions by near-zero. */ - redGain = std::clamp(redGain, 1.0 / 256, 1023.0 / 256); - blueGain = std::clamp(blueGain, 1.0 / 256, 1023.0 / 256); - - /* Filter the values to avoid oscillations. */ - double speed = 0.2; - redGain = speed * redGain + (1 - speed) * activeState.awb.gains.automatic.red; - blueGain = speed * blueGain + (1 - speed) * activeState.awb.gains.automatic.blue; - - activeState.awb.gains.automatic.red = redGain; - activeState.awb.gains.automatic.blue = blueGain; - activeState.awb.gains.automatic.green = 1.0; - - frameContext.awb.temperatureK = activeState.awb.temperatureK; - - metadata.set(controls::AwbEnable, frameContext.awb.autoEnabled); - metadata.set(controls::ColourGains, { - static_cast<float>(frameContext.awb.gains.red), - static_cast<float>(frameContext.awb.gains.blue) - }); - metadata.set(controls::ColourTemperature, frameContext.awb.temperatureK); + rgbMeans /= frameContext.awb.gains.max(0.01); - LOG(RkISP1Awb, Debug) << std::showpoint - << "Means [" << redMean << ", " << greenMean << ", " << blueMean - << "], gains [" << activeState.awb.gains.automatic.red << ", " - << activeState.awb.gains.automatic.green << ", " - << activeState.awb.gains.automatic.blue << "], temp " - << frameContext.awb.temperatureK << "K"; + return rgbMeans; } REGISTER_IPA_ALGORITHM(Awb, "Awb") diff --git a/src/ipa/rkisp1/algorithms/awb.h b/src/ipa/rkisp1/algorithms/awb.h index 9d45a442..02651cc7 100644 --- a/src/ipa/rkisp1/algorithms/awb.h +++ b/src/ipa/rkisp1/algorithms/awb.h @@ -2,11 +2,16 @@ /* * Copyright (C) 2021-2022, Ideas On Board * - * awb.h - AWB control algorithm + * AWB control algorithm */ #pragma once +#include "libcamera/internal/vector.h" + +#include "libipa/awb.h" +#include "libipa/interpolator.h" + #include "algorithm.h" namespace libcamera { @@ -19,20 +24,24 @@ public: Awb(); ~Awb() = default; + int init(IPAContext &context, const YamlObject &tuningData) override; int configure(IPAContext &context, const IPACameraSensorInfo &configInfo) override; void queueRequest(IPAContext &context, const uint32_t frame, IPAFrameContext &frameContext, const ControlList &controls) override; void prepare(IPAContext &context, const uint32_t frame, IPAFrameContext &frameContext, - rkisp1_params_cfg *params) override; + RkISP1Params *params) override; void process(IPAContext &context, const uint32_t frame, IPAFrameContext &frameContext, const rkisp1_stat_buffer *stats, ControlList &metadata) override; private: - uint32_t estimateCCT(double red, double green, double blue); + RGB<double> calculateRgbMeans(const IPAFrameContext &frameContext, + const rkisp1_cif_isp_awb_stat *awb) const; + + std::unique_ptr<AwbAlgorithm> awbAlgo_; bool rgbMode_; }; diff --git a/src/ipa/rkisp1/algorithms/blc.cpp b/src/ipa/rkisp1/algorithms/blc.cpp index 15324fb1..98cb7145 100644 --- a/src/ipa/rkisp1/algorithms/blc.cpp +++ b/src/ipa/rkisp1/algorithms/blc.cpp @@ -2,13 +2,17 @@ /* * Copyright (C) 2021-2022, Ideas On Board * - * blc.cpp - RkISP1 Black Level Correction control + * RkISP1 Black Level Correction control */ #include "blc.h" +#include <linux/videodev2.h> + #include <libcamera/base/log.h> +#include <libcamera/control_ids.h> + #include "libcamera/internal/yaml_parser.h" /** @@ -36,22 +40,62 @@ namespace ipa::rkisp1::algorithms { LOG_DEFINE_CATEGORY(RkISP1Blc) BlackLevelCorrection::BlackLevelCorrection() - : tuningParameters_(false) { + /* + * This is a bit of a hack. In raw mode no black level correction + * happens. This flag is used to ensure the metadata gets populated with + * the black level which is needed to capture proper raw images for + * tuning. + */ + supportsRaw_ = true; } /** * \copydoc libcamera::ipa::Algorithm::init */ -int BlackLevelCorrection::init([[maybe_unused]] IPAContext &context, - const YamlObject &tuningData) +int BlackLevelCorrection::init(IPAContext &context, const YamlObject &tuningData) { - blackLevelRed_ = tuningData["R"].get<int16_t>(256); - blackLevelGreenR_ = tuningData["Gr"].get<int16_t>(256); - blackLevelGreenB_ = tuningData["Gb"].get<int16_t>(256); - blackLevelBlue_ = tuningData["B"].get<int16_t>(256); - - tuningParameters_ = true; + std::optional<int16_t> levelRed = tuningData["R"].get<int16_t>(); + std::optional<int16_t> levelGreenR = tuningData["Gr"].get<int16_t>(); + std::optional<int16_t> levelGreenB = tuningData["Gb"].get<int16_t>(); + std::optional<int16_t> levelBlue = tuningData["B"].get<int16_t>(); + bool tuningHasLevels = levelRed && levelGreenR && levelGreenB && levelBlue; + + auto blackLevel = context.camHelper->blackLevel(); + if (!blackLevel) { + /* + * Not all camera sensor helpers have been updated with black + * levels. Print a warning and fall back to the levels from the + * tuning data to preserve backward compatibility. This should + * be removed once all helpers provide the data. + */ + LOG(RkISP1Blc, Warning) + << "No black levels provided by camera sensor helper" + << ", please fix"; + + blackLevelRed_ = levelRed.value_or(4096); + blackLevelGreenR_ = levelGreenR.value_or(4096); + blackLevelGreenB_ = levelGreenB.value_or(4096); + blackLevelBlue_ = levelBlue.value_or(4096); + } else if (tuningHasLevels) { + /* + * If black levels are provided in the tuning file, use them to + * avoid breaking existing camera tuning. This is deprecated and + * will be removed. + */ + LOG(RkISP1Blc, Warning) + << "Deprecated: black levels overwritten by tuning file"; + + blackLevelRed_ = *levelRed; + blackLevelGreenR_ = *levelGreenR; + blackLevelGreenB_ = *levelGreenB; + blackLevelBlue_ = *levelBlue; + } else { + blackLevelRed_ = *blackLevel; + blackLevelGreenR_ = *blackLevel; + blackLevelGreenB_ = *blackLevel; + blackLevelBlue_ = *blackLevel; + } LOG(RkISP1Blc, Debug) << "Black levels: red " << blackLevelRed_ @@ -62,29 +106,80 @@ int BlackLevelCorrection::init([[maybe_unused]] IPAContext &context, return 0; } +int BlackLevelCorrection::configure(IPAContext &context, + [[maybe_unused]] const IPACameraSensorInfo &configInfo) +{ + /* + * BLC on ISP versions that include the companding block requires usage + * of the extensible parameters format. + */ + supported_ = context.configuration.paramFormat == V4L2_META_FMT_RK_ISP1_EXT_PARAMS || + !context.hw->compand; + + if (!supported_) + LOG(RkISP1Blc, Warning) + << "BLC in companding block requires extensible parameters"; + + return 0; +} + /** * \copydoc libcamera::ipa::Algorithm::prepare */ -void BlackLevelCorrection::prepare([[maybe_unused]] IPAContext &context, +void BlackLevelCorrection::prepare(IPAContext &context, const uint32_t frame, [[maybe_unused]] IPAFrameContext &frameContext, - rkisp1_params_cfg *params) + RkISP1Params *params) { + if (context.configuration.raw) + return; + if (frame > 0) return; - if (!tuningParameters_) + if (!supported_) return; - params->others.bls_config.enable_auto = 0; - params->others.bls_config.fixed_val.r = blackLevelRed_; - params->others.bls_config.fixed_val.gr = blackLevelGreenR_; - params->others.bls_config.fixed_val.gb = blackLevelGreenB_; - params->others.bls_config.fixed_val.b = blackLevelBlue_; + if (context.hw->compand) { + auto config = params->block<BlockType::CompandBls>(); + config.setEnabled(true); + + /* + * Scale up to the 20-bit black levels used by the companding + * block. + */ + config->r = blackLevelRed_ << 4; + config->gr = blackLevelGreenR_ << 4; + config->gb = blackLevelGreenB_ << 4; + config->b = blackLevelBlue_ << 4; + } else { + auto config = params->block<BlockType::Bls>(); + config.setEnabled(true); + + config->enable_auto = 0; + + /* Scale down to the 12-bit black levels used by the BLS block. */ + config->fixed_val.r = blackLevelRed_ >> 4; + config->fixed_val.gr = blackLevelGreenR_ >> 4; + config->fixed_val.gb = blackLevelGreenB_ >> 4; + config->fixed_val.b = blackLevelBlue_ >> 4; + } +} - params->module_en_update |= RKISP1_CIF_ISP_MODULE_BLS; - params->module_ens |= RKISP1_CIF_ISP_MODULE_BLS; - params->module_cfg_update |= RKISP1_CIF_ISP_MODULE_BLS; +/** + * \copydoc libcamera::ipa::Algorithm::process + */ +void BlackLevelCorrection::process([[maybe_unused]] IPAContext &context, + [[maybe_unused]] const uint32_t frame, + [[maybe_unused]] IPAFrameContext &frameContext, + [[maybe_unused]] const rkisp1_stat_buffer *stats, + ControlList &metadata) +{ + metadata.set(controls::SensorBlackLevels, + { static_cast<int32_t>(blackLevelRed_), + static_cast<int32_t>(blackLevelGreenR_), + static_cast<int32_t>(blackLevelGreenB_), + static_cast<int32_t>(blackLevelBlue_) }); } REGISTER_IPA_ALGORITHM(BlackLevelCorrection, "BlackLevelCorrection") diff --git a/src/ipa/rkisp1/algorithms/blc.h b/src/ipa/rkisp1/algorithms/blc.h index 0b1a2d43..f797ae44 100644 --- a/src/ipa/rkisp1/algorithms/blc.h +++ b/src/ipa/rkisp1/algorithms/blc.h @@ -2,7 +2,7 @@ /* * Copyright (C) 2021-2022, Ideas On Board * - * blc.h - RkISP1 Black Level Correction control + * RkISP1 Black Level Correction control */ #pragma once @@ -20,12 +20,19 @@ public: ~BlackLevelCorrection() = default; int init(IPAContext &context, const YamlObject &tuningData) override; + int configure(IPAContext &context, + const IPACameraSensorInfo &configInfo) override; void prepare(IPAContext &context, const uint32_t frame, IPAFrameContext &frameContext, - rkisp1_params_cfg *params) override; + RkISP1Params *params) override; + void process(IPAContext &context, const uint32_t frame, + IPAFrameContext &frameContext, + const rkisp1_stat_buffer *stats, + ControlList &metadata) override; private: - bool tuningParameters_; + bool supported_; + int16_t blackLevelRed_; int16_t blackLevelGreenR_; int16_t blackLevelGreenB_; diff --git a/src/ipa/rkisp1/algorithms/ccm.cpp b/src/ipa/rkisp1/algorithms/ccm.cpp new file mode 100644 index 00000000..de2b6fe7 --- /dev/null +++ b/src/ipa/rkisp1/algorithms/ccm.cpp @@ -0,0 +1,178 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +/* + * Copyright (C) 2024, Ideas On Board + * + * RkISP1 Color Correction Matrix control algorithm + */ + +#include "ccm.h" + +#include <map> + +#include <libcamera/base/log.h> +#include <libcamera/base/utils.h> + +#include <libcamera/control_ids.h> + +#include <libcamera/ipa/core_ipa_interface.h> + +#include "libcamera/internal/yaml_parser.h" + +#include "libipa/fixedpoint.h" +#include "libipa/interpolator.h" + +/** + * \file ccm.h + */ + +namespace libcamera { + +namespace ipa::rkisp1::algorithms { + +/** + * \class Ccm + * \brief A color correction matrix algorithm + */ + +LOG_DEFINE_CATEGORY(RkISP1Ccm) + +constexpr Matrix<float, 3, 3> kIdentity3x3 = Matrix<float, 3, 3>::identity(); + +/** + * \copydoc libcamera::ipa::Algorithm::init + */ +int Ccm::init([[maybe_unused]] IPAContext &context, const YamlObject &tuningData) +{ + auto &cmap = context.ctrlMap; + cmap[&controls::ColourCorrectionMatrix] = ControlInfo( + ControlValue(-8.0f), + ControlValue(7.993f), + ControlValue(kIdentity3x3.data())); + + int ret = ccm_.readYaml(tuningData["ccms"], "ct", "ccm"); + if (ret < 0) { + LOG(RkISP1Ccm, Warning) + << "Failed to parse 'ccm' " + << "parameter from tuning file; falling back to unit matrix"; + ccm_.setData({ { 0, kIdentity3x3 } }); + } + + ret = offsets_.readYaml(tuningData["ccms"], "ct", "offsets"); + if (ret < 0) { + LOG(RkISP1Ccm, Warning) + << "Failed to parse 'offsets' " + << "parameter from tuning file; falling back to zero offsets"; + + offsets_.setData({ { 0, Matrix<int16_t, 3, 1>({ 0, 0, 0 }) } }); + } + + return 0; +} + +/** + * \copydoc libcamera::ipa::Algorithm::configure + */ +int Ccm::configure(IPAContext &context, + [[maybe_unused]] const IPACameraSensorInfo &configInfo) +{ + auto &as = context.activeState; + as.ccm.manual = kIdentity3x3; + as.ccm.automatic = ccm_.getInterpolated(as.awb.automatic.temperatureK); + return 0; +} + +void Ccm::queueRequest(IPAContext &context, + [[maybe_unused]] const uint32_t frame, + IPAFrameContext &frameContext, + const ControlList &controls) +{ + /* Nothing to do here, the ccm will be calculated in prepare() */ + if (frameContext.awb.autoEnabled) + return; + + auto &ccm = context.activeState.ccm; + + const auto &colourTemperature = controls.get(controls::ColourTemperature); + const auto &ccmMatrix = controls.get(controls::ColourCorrectionMatrix); + if (ccmMatrix) { + ccm.manual = Matrix<float, 3, 3>(*ccmMatrix); + LOG(RkISP1Ccm, Debug) + << "Setting manual CCM from CCM control to " << ccm.manual; + } else if (colourTemperature) { + ccm.manual = ccm_.getInterpolated(*colourTemperature); + LOG(RkISP1Ccm, Debug) + << "Setting manual CCM from CT control to " << ccm.manual; + } + + frameContext.ccm.ccm = ccm.manual; +} + +void Ccm::setParameters(struct rkisp1_cif_isp_ctk_config &config, + const Matrix<float, 3, 3> &matrix, + const Matrix<int16_t, 3, 1> &offsets) +{ + /* + * 4 bit integer and 7 bit fractional, ranging from -8 (0x400) to + * +7.9921875 (0x3ff) + */ + for (unsigned int i = 0; i < 3; i++) { + for (unsigned int j = 0; j < 3; j++) + config.coeff[i][j] = + floatingToFixedPoint<4, 7, uint16_t, double>(matrix[i][j]); + } + + for (unsigned int i = 0; i < 3; i++) + config.ct_offset[i] = offsets[i][0] & 0xfff; + + LOG(RkISP1Ccm, Debug) << "Setting matrix " << matrix; + LOG(RkISP1Ccm, Debug) << "Setting offsets " << offsets; +} + +/** + * \copydoc libcamera::ipa::Algorithm::prepare + */ +void Ccm::prepare(IPAContext &context, const uint32_t frame, + IPAFrameContext &frameContext, RkISP1Params *params) +{ + if (!frameContext.awb.autoEnabled) { + auto config = params->block<BlockType::Ctk>(); + config.setEnabled(true); + setParameters(*config, frameContext.ccm.ccm, Matrix<int16_t, 3, 1>()); + return; + } + + uint32_t ct = frameContext.awb.temperatureK; + if (frame > 0 && ct == ct_) { + frameContext.ccm.ccm = context.activeState.ccm.automatic; + return; + } + + ct_ = ct; + Matrix<float, 3, 3> ccm = ccm_.getInterpolated(ct); + Matrix<int16_t, 3, 1> offsets = offsets_.getInterpolated(ct); + + context.activeState.ccm.automatic = ccm; + frameContext.ccm.ccm = ccm; + + auto config = params->block<BlockType::Ctk>(); + config.setEnabled(true); + setParameters(*config, ccm, offsets); +} + +/** + * \copydoc libcamera::ipa::Algorithm::process + */ +void Ccm::process([[maybe_unused]] IPAContext &context, + [[maybe_unused]] const uint32_t frame, + IPAFrameContext &frameContext, + [[maybe_unused]] const rkisp1_stat_buffer *stats, + ControlList &metadata) +{ + metadata.set(controls::ColourCorrectionMatrix, frameContext.ccm.ccm.data()); +} + +REGISTER_IPA_ALGORITHM(Ccm, "Ccm") + +} /* namespace ipa::rkisp1::algorithms */ + +} /* namespace libcamera */ diff --git a/src/ipa/rkisp1/algorithms/ccm.h b/src/ipa/rkisp1/algorithms/ccm.h new file mode 100644 index 00000000..c301e6e5 --- /dev/null +++ b/src/ipa/rkisp1/algorithms/ccm.h @@ -0,0 +1,56 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +/* + * Copyright (C) 2024, Ideas On Board + * + * RkISP1 Color Correction Matrix control algorithm + */ + +#pragma once + +#include <linux/rkisp1-config.h> + +#include "libcamera/internal/matrix.h" + +#include "libipa/interpolator.h" + +#include "algorithm.h" + +namespace libcamera { + +namespace ipa::rkisp1::algorithms { + +class Ccm : public Algorithm +{ +public: + Ccm() {} + ~Ccm() = default; + + int init(IPAContext &context, const YamlObject &tuningData) override; + int configure(IPAContext &context, + const IPACameraSensorInfo &configInfo) override; + void queueRequest(IPAContext &context, + const uint32_t frame, + IPAFrameContext &frameContext, + const ControlList &controls) override; + void prepare(IPAContext &context, const uint32_t frame, + IPAFrameContext &frameContext, + RkISP1Params *params) override; + void process(IPAContext &context, const uint32_t frame, + IPAFrameContext &frameContext, + const rkisp1_stat_buffer *stats, + ControlList &metadata) override; + +private: + void parseYaml(const YamlObject &tuningData); + void setParameters(struct rkisp1_cif_isp_ctk_config &config, + const Matrix<float, 3, 3> &matrix, + const Matrix<int16_t, 3, 1> &offsets); + + unsigned int ct_; + Interpolator<Matrix<float, 3, 3>> ccm_; + Interpolator<Matrix<int16_t, 3, 1>> offsets_; +}; + +} /* namespace ipa::rkisp1::algorithms */ + +} /* namespace libcamera */ diff --git a/src/ipa/rkisp1/algorithms/cproc.cpp b/src/ipa/rkisp1/algorithms/cproc.cpp index eaa56c37..d1fff699 100644 --- a/src/ipa/rkisp1/algorithms/cproc.cpp +++ b/src/ipa/rkisp1/algorithms/cproc.cpp @@ -2,7 +2,7 @@ /* * Copyright (C) 2021-2022, Ideas On Board * - * cproc.cpp - RkISP1 Color Processing control + * RkISP1 Color Processing control */ #include "cproc.h" @@ -33,20 +33,71 @@ namespace ipa::rkisp1::algorithms { LOG_DEFINE_CATEGORY(RkISP1CProc) +namespace { + +constexpr float kDefaultBrightness = 0.0f; +constexpr float kDefaultContrast = 1.0f; +constexpr float kDefaultSaturation = 1.0f; + +int convertBrightness(const float v) +{ + return std::clamp<int>(std::lround(v * 128), -128, 127); +} + +int convertContrastOrSaturation(const float v) +{ + return std::clamp<int>(std::lround(v * 128), 0, 255); +} + +} /* namespace */ + +/** + * \copydoc libcamera::ipa::Algorithm::init + */ +int ColorProcessing::init(IPAContext &context, + [[maybe_unused]] const YamlObject &tuningData) +{ + auto &cmap = context.ctrlMap; + + cmap[&controls::Brightness] = ControlInfo(-1.0f, 0.993f, kDefaultBrightness); + cmap[&controls::Contrast] = ControlInfo(0.0f, 1.993f, kDefaultContrast); + cmap[&controls::Saturation] = ControlInfo(0.0f, 1.993f, kDefaultSaturation); + + return 0; +} + +/** + * \copydoc libcamera::ipa::Algorithm::configure + */ +int ColorProcessing::configure(IPAContext &context, + [[maybe_unused]] const IPACameraSensorInfo &configInfo) +{ + auto &cproc = context.activeState.cproc; + + cproc.brightness = convertBrightness(kDefaultBrightness); + cproc.contrast = convertContrastOrSaturation(kDefaultContrast); + cproc.saturation = convertContrastOrSaturation(kDefaultSaturation); + + return 0; +} + /** * \copydoc libcamera::ipa::Algorithm::queueRequest */ void ColorProcessing::queueRequest(IPAContext &context, - [[maybe_unused]] const uint32_t frame, + const uint32_t frame, IPAFrameContext &frameContext, const ControlList &controls) { auto &cproc = context.activeState.cproc; bool update = false; + if (frame == 0) + update = true; + const auto &brightness = controls.get(controls::Brightness); if (brightness) { - int value = std::clamp<int>(std::lround(*brightness * 128), -128, 127); + int value = convertBrightness(*brightness); if (cproc.brightness != value) { cproc.brightness = value; update = true; @@ -57,7 +108,7 @@ void ColorProcessing::queueRequest(IPAContext &context, const auto &contrast = controls.get(controls::Contrast); if (contrast) { - int value = std::clamp<int>(std::lround(*contrast * 128), 0, 255); + int value = convertContrastOrSaturation(*contrast); if (cproc.contrast != value) { cproc.contrast = value; update = true; @@ -68,7 +119,7 @@ void ColorProcessing::queueRequest(IPAContext &context, const auto saturation = controls.get(controls::Saturation); if (saturation) { - int value = std::clamp<int>(std::lround(*saturation * 128), 0, 255); + int value = convertContrastOrSaturation(*saturation); if (cproc.saturation != value) { cproc.saturation = value; update = true; @@ -89,19 +140,17 @@ void ColorProcessing::queueRequest(IPAContext &context, void ColorProcessing::prepare([[maybe_unused]] IPAContext &context, [[maybe_unused]] const uint32_t frame, IPAFrameContext &frameContext, - rkisp1_params_cfg *params) + RkISP1Params *params) { /* Check if the algorithm configuration has been updated. */ if (!frameContext.cproc.update) return; - params->others.cproc_config.brightness = frameContext.cproc.brightness; - params->others.cproc_config.contrast = frameContext.cproc.contrast; - params->others.cproc_config.sat = frameContext.cproc.saturation; - - params->module_en_update |= RKISP1_CIF_ISP_MODULE_CPROC; - params->module_ens |= RKISP1_CIF_ISP_MODULE_CPROC; - params->module_cfg_update |= RKISP1_CIF_ISP_MODULE_CPROC; + auto config = params->block<BlockType::Cproc>(); + config.setEnabled(true); + config->brightness = frameContext.cproc.brightness; + config->contrast = frameContext.cproc.contrast; + config->sat = frameContext.cproc.saturation; } REGISTER_IPA_ALGORITHM(ColorProcessing, "ColorProcessing") diff --git a/src/ipa/rkisp1/algorithms/cproc.h b/src/ipa/rkisp1/algorithms/cproc.h index ba6e901a..fd38fd17 100644 --- a/src/ipa/rkisp1/algorithms/cproc.h +++ b/src/ipa/rkisp1/algorithms/cproc.h @@ -2,7 +2,7 @@ /* * Copyright (C) 2021-2022, Ideas On Board * - * cproc.h - RkISP1 Color Processing control + * RkISP1 Color Processing control */ #pragma once @@ -21,12 +21,15 @@ public: ColorProcessing() = default; ~ColorProcessing() = default; + int init(IPAContext &context, const YamlObject &tuningData) override; + int configure(IPAContext &context, + const IPACameraSensorInfo &configInfo) override; void queueRequest(IPAContext &context, const uint32_t frame, IPAFrameContext &frameContext, const ControlList &controls) override; void prepare(IPAContext &context, const uint32_t frame, IPAFrameContext &frameContext, - rkisp1_params_cfg *params) override; + RkISP1Params *params) override; }; } /* namespace ipa::rkisp1::algorithms */ diff --git a/src/ipa/rkisp1/algorithms/dpcc.cpp b/src/ipa/rkisp1/algorithms/dpcc.cpp index 80a1b734..78946281 100644 --- a/src/ipa/rkisp1/algorithms/dpcc.cpp +++ b/src/ipa/rkisp1/algorithms/dpcc.cpp @@ -2,7 +2,7 @@ /* * Copyright (C) 2021-2022, Ideas On Board * - * dpcc.cpp - RkISP1 Defect Pixel Cluster Correction control + * RkISP1 Defect Pixel Cluster Correction control */ #include "dpcc.h" @@ -232,16 +232,14 @@ int DefectPixelClusterCorrection::init([[maybe_unused]] IPAContext &context, void DefectPixelClusterCorrection::prepare([[maybe_unused]] IPAContext &context, const uint32_t frame, [[maybe_unused]] IPAFrameContext &frameContext, - rkisp1_params_cfg *params) + RkISP1Params *params) { if (frame > 0) return; - params->others.dpcc_config = config_; - - params->module_en_update |= RKISP1_CIF_ISP_MODULE_DPCC; - params->module_ens |= RKISP1_CIF_ISP_MODULE_DPCC; - params->module_cfg_update |= RKISP1_CIF_ISP_MODULE_DPCC; + auto config = params->block<BlockType::Dpcc>(); + config.setEnabled(true); + *config = config_; } REGISTER_IPA_ALGORITHM(DefectPixelClusterCorrection, "DefectPixelClusterCorrection") diff --git a/src/ipa/rkisp1/algorithms/dpcc.h b/src/ipa/rkisp1/algorithms/dpcc.h index b1fac7d1..b77766c3 100644 --- a/src/ipa/rkisp1/algorithms/dpcc.h +++ b/src/ipa/rkisp1/algorithms/dpcc.h @@ -2,7 +2,7 @@ /* * Copyright (C) 2021-2022, Ideas On Board * - * dpcc.h - RkISP1 Defect Pixel Cluster Correction control + * RkISP1 Defect Pixel Cluster Correction control */ #pragma once @@ -22,7 +22,7 @@ public: int init(IPAContext &context, const YamlObject &tuningData) override; void prepare(IPAContext &context, const uint32_t frame, IPAFrameContext &frameContext, - rkisp1_params_cfg *params) override; + RkISP1Params *params) override; private: rkisp1_cif_isp_dpcc_config config_; diff --git a/src/ipa/rkisp1/algorithms/dpf.cpp b/src/ipa/rkisp1/algorithms/dpf.cpp index 5bd7e59f..cb6095da 100644 --- a/src/ipa/rkisp1/algorithms/dpf.cpp +++ b/src/ipa/rkisp1/algorithms/dpf.cpp @@ -2,12 +2,14 @@ /* * Copyright (C) 2021-2022, Ideas On Board * - * dpf.cpp - RkISP1 Denoise Pre-Filter control + * RkISP1 Denoise Pre-Filter control */ #include "dpf.h" -#include <cmath> +#include <algorithm> +#include <string> +#include <vector> #include <libcamera/base/log.h> @@ -215,15 +217,21 @@ void Dpf::queueRequest(IPAContext &context, * \copydoc libcamera::ipa::Algorithm::prepare */ void Dpf::prepare(IPAContext &context, const uint32_t frame, - IPAFrameContext &frameContext, rkisp1_params_cfg *params) + IPAFrameContext &frameContext, RkISP1Params *params) { - if (frame == 0) { - params->others.dpf_config = config_; - params->others.dpf_strength_config = strengthConfig_; + if (!frameContext.dpf.update && frame > 0) + return; + + auto config = params->block<BlockType::Dpf>(); + config.setEnabled(frameContext.dpf.denoise); + + if (frameContext.dpf.denoise) { + *config = config_; const auto &awb = context.configuration.awb; const auto &lsc = context.configuration.lsc; - auto &mode = params->others.dpf_config.gain.mode; + + auto &mode = config->gain.mode; /* * The DPF needs to take into account the total amount of @@ -241,15 +249,12 @@ void Dpf::prepare(IPAContext &context, const uint32_t frame, mode = RKISP1_CIF_ISP_DPF_GAIN_USAGE_LSC_GAINS; else mode = RKISP1_CIF_ISP_DPF_GAIN_USAGE_DISABLED; - - params->module_cfg_update |= RKISP1_CIF_ISP_MODULE_DPF | - RKISP1_CIF_ISP_MODULE_DPF_STRENGTH; } - if (frameContext.dpf.update) { - params->module_en_update |= RKISP1_CIF_ISP_MODULE_DPF; - if (frameContext.dpf.denoise) - params->module_ens |= RKISP1_CIF_ISP_MODULE_DPF; + if (frame == 0) { + auto strengthConfig = params->block<BlockType::DpfStrength>(); + strengthConfig.setEnabled(true); + *strengthConfig = strengthConfig_; } } diff --git a/src/ipa/rkisp1/algorithms/dpf.h b/src/ipa/rkisp1/algorithms/dpf.h index 58f29f74..2dd8cd36 100644 --- a/src/ipa/rkisp1/algorithms/dpf.h +++ b/src/ipa/rkisp1/algorithms/dpf.h @@ -2,7 +2,7 @@ /* * Copyright (C) 2021-2022, Ideas On Board * - * dpf.h - RkISP1 Denoise Pre-Filter control + * RkISP1 Denoise Pre-Filter control */ #pragma once @@ -27,7 +27,7 @@ public: const ControlList &controls) override; void prepare(IPAContext &context, const uint32_t frame, IPAFrameContext &frameContext, - rkisp1_params_cfg *params) override; + RkISP1Params *params) override; private: struct rkisp1_cif_isp_dpf_config config_; diff --git a/src/ipa/rkisp1/algorithms/filter.cpp b/src/ipa/rkisp1/algorithms/filter.cpp index 4b89c05a..7598ef8a 100644 --- a/src/ipa/rkisp1/algorithms/filter.cpp +++ b/src/ipa/rkisp1/algorithms/filter.cpp @@ -2,7 +2,7 @@ /* * Copyright (C) 2021-2022, Ideas On Board * - * filter.cpp - RkISP1 Filter control + * RkISP1 Filter control */ #include "filter.h" @@ -104,7 +104,7 @@ void Filter::queueRequest(IPAContext &context, */ void Filter::prepare([[maybe_unused]] IPAContext &context, [[maybe_unused]] const uint32_t frame, - IPAFrameContext &frameContext, rkisp1_params_cfg *params) + IPAFrameContext &frameContext, RkISP1Params *params) { /* Check if the algorithm configuration has been updated. */ if (!frameContext.filter.update) @@ -160,23 +160,25 @@ void Filter::prepare([[maybe_unused]] IPAContext &context, uint8_t denoise = frameContext.filter.denoise; uint8_t sharpness = frameContext.filter.sharpness; - auto &flt_config = params->others.flt_config; - - flt_config.fac_sh0 = filt_fac_sh0[sharpness]; - flt_config.fac_sh1 = filt_fac_sh1[sharpness]; - flt_config.fac_mid = filt_fac_mid[sharpness]; - flt_config.fac_bl0 = filt_fac_bl0[sharpness]; - flt_config.fac_bl1 = filt_fac_bl1[sharpness]; - - flt_config.lum_weight = kFiltLumWeightDefault; - flt_config.mode = kFiltModeDefault; - flt_config.thresh_sh0 = filt_thresh_sh0[denoise]; - flt_config.thresh_sh1 = filt_thresh_sh1[denoise]; - flt_config.thresh_bl0 = filt_thresh_bl0[denoise]; - flt_config.thresh_bl1 = filt_thresh_bl1[denoise]; - flt_config.grn_stage1 = stage1_select[denoise]; - flt_config.chr_v_mode = filt_chr_v_mode[denoise]; - flt_config.chr_h_mode = filt_chr_h_mode[denoise]; + + auto config = params->block<BlockType::Flt>(); + config.setEnabled(true); + + config->fac_sh0 = filt_fac_sh0[sharpness]; + config->fac_sh1 = filt_fac_sh1[sharpness]; + config->fac_mid = filt_fac_mid[sharpness]; + config->fac_bl0 = filt_fac_bl0[sharpness]; + config->fac_bl1 = filt_fac_bl1[sharpness]; + + config->lum_weight = kFiltLumWeightDefault; + config->mode = kFiltModeDefault; + config->thresh_sh0 = filt_thresh_sh0[denoise]; + config->thresh_sh1 = filt_thresh_sh1[denoise]; + config->thresh_bl0 = filt_thresh_bl0[denoise]; + config->thresh_bl1 = filt_thresh_bl1[denoise]; + config->grn_stage1 = stage1_select[denoise]; + config->chr_v_mode = filt_chr_v_mode[denoise]; + config->chr_h_mode = filt_chr_h_mode[denoise]; /* * Combined high denoising and high sharpening requires some @@ -186,27 +188,23 @@ void Filter::prepare([[maybe_unused]] IPAContext &context, */ if (denoise == 9) { if (sharpness > 3) - flt_config.grn_stage1 = 2; + config->grn_stage1 = 2; } else if (denoise == 10) { if (sharpness > 5) - flt_config.grn_stage1 = 2; + config->grn_stage1 = 2; else if (sharpness > 3) - flt_config.grn_stage1 = 1; + config->grn_stage1 = 1; } if (denoise > 7) { if (sharpness > 7) { - flt_config.fac_bl0 /= 2; - flt_config.fac_bl1 /= 4; + config->fac_bl0 /= 2; + config->fac_bl1 /= 4; } else if (sharpness > 4) { - flt_config.fac_bl0 = flt_config.fac_bl0 * 3 / 4; - flt_config.fac_bl1 /= 2; + config->fac_bl0 = config->fac_bl0 * 3 / 4; + config->fac_bl1 /= 2; } } - - params->module_en_update |= RKISP1_CIF_ISP_MODULE_FLT; - params->module_ens |= RKISP1_CIF_ISP_MODULE_FLT; - params->module_cfg_update |= RKISP1_CIF_ISP_MODULE_FLT; } REGISTER_IPA_ALGORITHM(Filter, "Filter") diff --git a/src/ipa/rkisp1/algorithms/filter.h b/src/ipa/rkisp1/algorithms/filter.h index 3fd882ea..8f858e57 100644 --- a/src/ipa/rkisp1/algorithms/filter.h +++ b/src/ipa/rkisp1/algorithms/filter.h @@ -2,7 +2,7 @@ /* * Copyright (C) 2021-2022, Ideas On Board * - * filter.h - RkISP1 Filter control + * RkISP1 Filter control */ #pragma once @@ -26,7 +26,7 @@ public: const ControlList &controls) override; void prepare(IPAContext &context, const uint32_t frame, IPAFrameContext &frameContext, - rkisp1_params_cfg *params) override; + RkISP1Params *params) override; }; } /* namespace ipa::rkisp1::algorithms */ diff --git a/src/ipa/rkisp1/algorithms/goc.cpp b/src/ipa/rkisp1/algorithms/goc.cpp new file mode 100644 index 00000000..a9493678 --- /dev/null +++ b/src/ipa/rkisp1/algorithms/goc.cpp @@ -0,0 +1,149 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +/* + * Copyright (C) 2024, Ideas On Board + * + * RkISP1 Gamma out control + */ +#include "goc.h" + +#include <cmath> + +#include <libcamera/base/log.h> +#include <libcamera/base/utils.h> + +#include <libcamera/control_ids.h> + +#include "libcamera/internal/yaml_parser.h" + +#include "linux/rkisp1-config.h" + +/** + * \file goc.h + */ + +namespace libcamera { + +namespace ipa::rkisp1::algorithms { + +/** + * \class GammaOutCorrection + * \brief RkISP1 Gamma out correction + * + * This algorithm implements the gamma out curve for the RkISP1. It defaults to + * a gamma value of 2.2. + * + * As gamma is internally represented as a piecewise linear function with only + * 17 knots, the difference between gamma=2.2 and sRGB gamma is minimal. + * Therefore sRGB gamma was not implemented as special case. + * + * Useful links: + * - https://www.cambridgeincolour.com/tutorials/gamma-correction.htm + * - https://en.wikipedia.org/wiki/SRGB + */ + +LOG_DEFINE_CATEGORY(RkISP1Gamma) + +const float kDefaultGamma = 2.2f; + +/** + * \copydoc libcamera::ipa::Algorithm::init + */ +int GammaOutCorrection::init(IPAContext &context, const YamlObject &tuningData) +{ + if (context.hw->numGammaOutSamples != + RKISP1_CIF_ISP_GAMMA_OUT_MAX_SAMPLES_V10) { + LOG(RkISP1Gamma, Error) + << "Gamma is not implemented for RkISP1 V12"; + return -EINVAL; + } + + defaultGamma_ = tuningData["gamma"].get<double>(kDefaultGamma); + context.ctrlMap[&controls::Gamma] = ControlInfo(0.1f, 10.0f, defaultGamma_); + + return 0; +} + +/** + * \copydoc libcamera::ipa::Algorithm::configure + */ +int GammaOutCorrection::configure(IPAContext &context, + [[maybe_unused]] const IPACameraSensorInfo &configInfo) +{ + context.activeState.goc.gamma = defaultGamma_; + return 0; +} + +/** + * \copydoc libcamera::ipa::Algorithm::queueRequest + */ +void GammaOutCorrection::queueRequest(IPAContext &context, const uint32_t frame, + IPAFrameContext &frameContext, + const ControlList &controls) +{ + if (frame == 0) + frameContext.goc.update = true; + + const auto &gamma = controls.get(controls::Gamma); + if (gamma) { + context.activeState.goc.gamma = *gamma; + frameContext.goc.update = true; + LOG(RkISP1Gamma, Debug) << "Set gamma to " << *gamma; + } + + frameContext.goc.gamma = context.activeState.goc.gamma; +} + +/** + * \copydoc libcamera::ipa::Algorithm::prepare + */ +void GammaOutCorrection::prepare(IPAContext &context, + [[maybe_unused]] const uint32_t frame, + IPAFrameContext &frameContext, + RkISP1Params *params) +{ + ASSERT(context.hw->numGammaOutSamples == + RKISP1_CIF_ISP_GAMMA_OUT_MAX_SAMPLES_V10); + + if (!frameContext.goc.update) + return; + + /* + * The logarithmic segments as specified in the reference. + * Plus an additional 0 to make the loop easier + */ + static constexpr std::array<unsigned int, RKISP1_CIF_ISP_GAMMA_OUT_MAX_SAMPLES_V10> segments = { + 64, 64, 64, 64, 128, 128, 128, 128, 256, + 256, 256, 512, 512, 512, 512, 512, 0 + }; + + auto config = params->block<BlockType::Goc>(); + config.setEnabled(true); + + __u16 *gamma_y = config->gamma_y; + + unsigned x = 0; + for (const auto [i, size] : utils::enumerate(segments)) { + gamma_y[i] = std::pow(x / 4096.0, 1.0 / frameContext.goc.gamma) * 1023.0; + x += size; + } + + config->mode = RKISP1_CIF_ISP_GOC_MODE_LOGARITHMIC; +} + +/** + * \copydoc libcamera::ipa::Algorithm::process + */ +void GammaOutCorrection::process([[maybe_unused]] IPAContext &context, + [[maybe_unused]] const uint32_t frame, + IPAFrameContext &frameContext, + [[maybe_unused]] const rkisp1_stat_buffer *stats, + ControlList &metadata) +{ + metadata.set(controls::Gamma, frameContext.goc.gamma); +} + +REGISTER_IPA_ALGORITHM(GammaOutCorrection, "GammaOutCorrection") + +} /* namespace ipa::rkisp1::algorithms */ + +} /* namespace libcamera */ diff --git a/src/ipa/rkisp1/algorithms/goc.h b/src/ipa/rkisp1/algorithms/goc.h new file mode 100644 index 00000000..bb2ddfc9 --- /dev/null +++ b/src/ipa/rkisp1/algorithms/goc.h @@ -0,0 +1,42 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +/* + * Copyright (C) 2024, Ideas On Board + * + * RkISP1 Gamma out control + */ + +#pragma once + +#include "algorithm.h" + +namespace libcamera { + +namespace ipa::rkisp1::algorithms { + +class GammaOutCorrection : public Algorithm +{ +public: + GammaOutCorrection() = default; + ~GammaOutCorrection() = default; + + int init(IPAContext &context, const YamlObject &tuningData) override; + int configure(IPAContext &context, + const IPACameraSensorInfo &configInfo) override; + void queueRequest(IPAContext &context, + const uint32_t frame, + IPAFrameContext &frameContext, + const ControlList &controls) override; + void prepare(IPAContext &context, const uint32_t frame, + IPAFrameContext &frameContext, + RkISP1Params *params) override; + void process(IPAContext &context, const uint32_t frame, + IPAFrameContext &frameContext, + const rkisp1_stat_buffer *stats, + ControlList &metadata) override; + +private: + float defaultGamma_; +}; + +} /* namespace ipa::rkisp1::algorithms */ +} /* namespace libcamera */ diff --git a/src/ipa/rkisp1/algorithms/gsl.cpp b/src/ipa/rkisp1/algorithms/gsl.cpp index b9f87912..9604c0ac 100644 --- a/src/ipa/rkisp1/algorithms/gsl.cpp +++ b/src/ipa/rkisp1/algorithms/gsl.cpp @@ -2,7 +2,7 @@ /* * Copyright (C) 2021-2022, Ideas On Board * - * gsl.cpp - RkISP1 Gamma Sensor Linearization control + * RkISP1 Gamma Sensor Linearization control */ #include "gsl.h" @@ -119,24 +119,20 @@ int GammaSensorLinearization::init([[maybe_unused]] IPAContext &context, void GammaSensorLinearization::prepare([[maybe_unused]] IPAContext &context, const uint32_t frame, [[maybe_unused]] IPAFrameContext &frameContext, - rkisp1_params_cfg *params) + RkISP1Params *params) { if (frame > 0) return; - params->others.sdg_config.xa_pnts.gamma_dx0 = gammaDx_[0]; - params->others.sdg_config.xa_pnts.gamma_dx1 = gammaDx_[1]; + auto config = params->block<BlockType::Sdg>(); + config.setEnabled(true); - std::copy(curveYr_.begin(), curveYr_.end(), - params->others.sdg_config.curve_r.gamma_y); - std::copy(curveYg_.begin(), curveYg_.end(), - params->others.sdg_config.curve_g.gamma_y); - std::copy(curveYb_.begin(), curveYb_.end(), - params->others.sdg_config.curve_b.gamma_y); + config->xa_pnts.gamma_dx0 = gammaDx_[0]; + config->xa_pnts.gamma_dx1 = gammaDx_[1]; - params->module_en_update |= RKISP1_CIF_ISP_MODULE_SDG; - params->module_ens |= RKISP1_CIF_ISP_MODULE_SDG; - params->module_cfg_update |= RKISP1_CIF_ISP_MODULE_SDG; + std::copy(curveYr_.begin(), curveYr_.end(), config->curve_r.gamma_y); + std::copy(curveYg_.begin(), curveYg_.end(), config->curve_g.gamma_y); + std::copy(curveYb_.begin(), curveYb_.end(), config->curve_b.gamma_y); } REGISTER_IPA_ALGORITHM(GammaSensorLinearization, "GammaSensorLinearization") diff --git a/src/ipa/rkisp1/algorithms/gsl.h b/src/ipa/rkisp1/algorithms/gsl.h index 0f1116a7..91cf6efa 100644 --- a/src/ipa/rkisp1/algorithms/gsl.h +++ b/src/ipa/rkisp1/algorithms/gsl.h @@ -2,7 +2,7 @@ /* * Copyright (C) 2021-2022, Ideas On Board * - * gsl.h - RkISP1 Gamma Sensor Linearization control + * RkISP1 Gamma Sensor Linearization control */ #pragma once @@ -22,7 +22,7 @@ public: int init(IPAContext &context, const YamlObject &tuningData) override; void prepare(IPAContext &context, const uint32_t frame, IPAFrameContext &frameContext, - rkisp1_params_cfg *params) override; + RkISP1Params *params) override; private: uint32_t gammaDx_[2]; diff --git a/src/ipa/rkisp1/algorithms/lsc.cpp b/src/ipa/rkisp1/algorithms/lsc.cpp index a7ccedb1..e7301bfe 100644 --- a/src/ipa/rkisp1/algorithms/lsc.cpp +++ b/src/ipa/rkisp1/algorithms/lsc.cpp @@ -2,7 +2,7 @@ /* * Copyright (C) 2021-2022, Ideas On Board * - * lsc.cpp - RkISP1 Lens Shading Correction control + * RkISP1 Lens Shading Correction control */ #include "lsc.h" @@ -16,6 +16,7 @@ #include "libcamera/internal/yaml_parser.h" +#include "libipa/lsc_polynomial.h" #include "linux/rkisp1-config.h" /** @@ -24,6 +25,36 @@ namespace libcamera { +namespace ipa { + +constexpr int kColourTemperatureChangeThreshhold = 10; + +template<typename T> +void interpolateVector(const std::vector<T> &a, const std::vector<T> &b, + std::vector<T> &dest, double lambda) +{ + assert(a.size() == b.size()); + dest.resize(a.size()); + for (size_t i = 0; i < a.size(); i++) { + dest[i] = a[i] * (1.0 - lambda) + b[i] * lambda; + } +} + +template<> +void Interpolator<rkisp1::algorithms::LensShadingCorrection::Components>:: + interpolate(const rkisp1::algorithms::LensShadingCorrection::Components &a, + const rkisp1::algorithms::LensShadingCorrection::Components &b, + rkisp1::algorithms::LensShadingCorrection::Components &dest, + double lambda) +{ + interpolateVector(a.r, b.r, dest.r, lambda); + interpolateVector(a.gr, b.gr, dest.gr, lambda); + interpolateVector(a.gb, b.gb, dest.gb, lambda); + interpolateVector(a.b, b.b, dest.b, lambda); +} + +} /* namespace ipa */ + namespace ipa::rkisp1::algorithms { /** @@ -40,6 +71,200 @@ namespace ipa::rkisp1::algorithms { LOG_DEFINE_CATEGORY(RkISP1Lsc) +class LscPolynomialLoader +{ +public: + LscPolynomialLoader(const Size &sensorSize, + const Rectangle &cropRectangle, + const std::vector<double> &xSizes, + const std::vector<double> &ySizes) + : sensorSize_(sensorSize), + cropRectangle_(cropRectangle), + xSizes_(xSizes), + ySizes_(ySizes) + { + } + + int parseLscData(const YamlObject &yamlSets, + std::map<unsigned int, LensShadingCorrection::Components> &lscData) + { + const auto &sets = yamlSets.asList(); + for (const auto &yamlSet : sets) { + std::optional<LscPolynomial> pr, pgr, pgb, pb; + uint32_t ct = yamlSet["ct"].get<uint32_t>(0); + + if (lscData.count(ct)) { + LOG(RkISP1Lsc, Error) + << "Multiple sets found for " + << "color temperature " << ct; + return -EINVAL; + } + + LensShadingCorrection::Components &set = lscData[ct]; + pr = yamlSet["r"].get<LscPolynomial>(); + pgr = yamlSet["gr"].get<LscPolynomial>(); + pgb = yamlSet["gb"].get<LscPolynomial>(); + pb = yamlSet["b"].get<LscPolynomial>(); + + if (!(pr || pgr || pgb || pb)) { + LOG(RkISP1Lsc, Error) + << "Failed to parse polynomial for " + << "colour temperature " << ct; + return -EINVAL; + } + + set.ct = ct; + pr->setReferenceImageSize(sensorSize_); + pgr->setReferenceImageSize(sensorSize_); + pgb->setReferenceImageSize(sensorSize_); + pb->setReferenceImageSize(sensorSize_); + set.r = samplePolynomial(*pr); + set.gr = samplePolynomial(*pgr); + set.gb = samplePolynomial(*pgb); + set.b = samplePolynomial(*pb); + } + + if (lscData.empty()) { + LOG(RkISP1Lsc, Error) << "Failed to load any sets"; + return -EINVAL; + } + + return 0; + } + +private: + /* + * The lsc grid has custom spacing defined on half the range (see + * parseSizes() for details). For easier handling this function converts + * the spaces vector to positions and mirrors them. E.g.: + * + * input: | 0.2 | 0.3 | + * output: 0.0 0.2 0.5 0.8 1.0 + */ + std::vector<double> sizesListToPositions(const std::vector<double> &sizes) + { + const int half = sizes.size(); + std::vector<double> res(half * 2 + 1); + double x = 0.0; + + res[half] = 0.5; + for (int i = 1; i <= half; i++) { + x += sizes[half - i]; + res[half - i] = 0.5 - x; + res[half + i] = 0.5 + x; + } + + return res; + } + + std::vector<uint16_t> samplePolynomial(const LscPolynomial &poly) + { + constexpr int k = RKISP1_CIF_ISP_LSC_SAMPLES_MAX; + + double m = poly.getM(); + double x0 = cropRectangle_.x / m; + double y0 = cropRectangle_.y / m; + double w = cropRectangle_.width / m; + double h = cropRectangle_.height / m; + std::vector<uint16_t> res; + + assert(xSizes_.size() * 2 + 1 == k); + assert(ySizes_.size() * 2 + 1 == k); + + res.reserve(k * k); + + std::vector<double> xPos(sizesListToPositions(xSizes_)); + std::vector<double> yPos(sizesListToPositions(ySizes_)); + + for (int y = 0; y < k; y++) { + for (int x = 0; x < k; x++) { + double xp = x0 + xPos[x] * w; + double yp = y0 + yPos[y] * h; + /* + * The hardware uses 2.10 fixed point format and + * limits the legal values to [1..3.999]. Scale + * and clamp the sampled value accordingly. + */ + int v = static_cast<int>( + poly.sampleAtNormalizedPixelPos(xp, yp) * + 1024); + v = std::min(std::max(v, 1024), 4095); + res.push_back(v); + } + } + return res; + } + + Size sensorSize_; + Rectangle cropRectangle_; + const std::vector<double> &xSizes_; + const std::vector<double> &ySizes_; +}; + +class LscTableLoader +{ +public: + int parseLscData(const YamlObject &yamlSets, + std::map<unsigned int, LensShadingCorrection::Components> &lscData) + { + const auto &sets = yamlSets.asList(); + + for (const auto &yamlSet : sets) { + uint32_t ct = yamlSet["ct"].get<uint32_t>(0); + + if (lscData.count(ct)) { + LOG(RkISP1Lsc, Error) + << "Multiple sets found for color temperature " + << ct; + return -EINVAL; + } + + LensShadingCorrection::Components &set = lscData[ct]; + + set.ct = ct; + set.r = parseTable(yamlSet, "r"); + set.gr = parseTable(yamlSet, "gr"); + set.gb = parseTable(yamlSet, "gb"); + set.b = parseTable(yamlSet, "b"); + + if (set.r.empty() || set.gr.empty() || + set.gb.empty() || set.b.empty()) { + LOG(RkISP1Lsc, Error) + << "Set for color temperature " << ct + << " is missing tables"; + return -EINVAL; + } + } + + if (lscData.empty()) { + LOG(RkISP1Lsc, Error) << "Failed to load any sets"; + return -EINVAL; + } + + return 0; + } + +private: + std::vector<uint16_t> parseTable(const YamlObject &tuningData, + const char *prop) + { + static constexpr unsigned int kLscNumSamples = + RKISP1_CIF_ISP_LSC_SAMPLES_MAX * RKISP1_CIF_ISP_LSC_SAMPLES_MAX; + + std::vector<uint16_t> table = + tuningData[prop].getList<uint16_t>().value_or(std::vector<uint16_t>{}); + if (table.size() != kLscNumSamples) { + LOG(RkISP1Lsc, Error) + << "Invalid '" << prop << "' values: expected " + << kLscNumSamples + << " elements, got " << table.size(); + return {}; + } + + return table; + } +}; + static std::vector<double> parseSizes(const YamlObject &tuningData, const char *prop) { @@ -70,28 +295,10 @@ static std::vector<double> parseSizes(const YamlObject &tuningData, return sizes; } -static std::vector<uint16_t> parseTable(const YamlObject &tuningData, - const char *prop) -{ - static constexpr unsigned int kLscNumSamples = - RKISP1_CIF_ISP_LSC_SAMPLES_MAX * RKISP1_CIF_ISP_LSC_SAMPLES_MAX; - - std::vector<uint16_t> table = - tuningData[prop].getList<uint16_t>().value_or(std::vector<uint16_t>{}); - if (table.size() != kLscNumSamples) { - LOG(RkISP1Lsc, Error) - << "Invalid '" << prop << "' values: expected " - << kLscNumSamples - << " elements, got " << table.size(); - return {}; - } - - return table; -} - LensShadingCorrection::LensShadingCorrection() - : lastCt_({ 0, 0 }) + : lastAppliedCt_(0), lastAppliedQuantizedCt_(0) { + sets_.setQuantization(kColourTemperatureChangeThreshhold); } /** @@ -114,38 +321,30 @@ int LensShadingCorrection::init([[maybe_unused]] IPAContext &context, return -EINVAL; } - const auto &sets = yamlSets.asList(); - for (const auto &yamlSet : sets) { - uint32_t ct = yamlSet["ct"].get<uint32_t>(0); - - if (sets_.count(ct)) { - LOG(RkISP1Lsc, Error) - << "Multiple sets found for color temperature " - << ct; - return -EINVAL; - } - - Components &set = sets_[ct]; - - set.ct = ct; - set.r = parseTable(yamlSet, "r"); - set.gr = parseTable(yamlSet, "gr"); - set.gb = parseTable(yamlSet, "gb"); - set.b = parseTable(yamlSet, "b"); - - if (set.r.empty() || set.gr.empty() || - set.gb.empty() || set.b.empty()) { - LOG(RkISP1Lsc, Error) - << "Set for color temperature " << ct - << " is missing tables"; - return -EINVAL; - } + std::map<unsigned int, Components> lscData; + int res = 0; + std::string type = tuningData["type"].get<std::string>("table"); + if (type == "table") { + LOG(RkISP1Lsc, Debug) << "Loading tabular LSC data."; + auto loader = LscTableLoader(); + res = loader.parseLscData(yamlSets, lscData); + } else if (type == "polynomial") { + LOG(RkISP1Lsc, Debug) << "Loading polynomial LSC data."; + auto loader = LscPolynomialLoader(context.sensorInfo.activeAreaSize, + context.sensorInfo.analogCrop, + xSize_, + ySize_); + res = loader.parseLscData(yamlSets, lscData); + } else { + LOG(RkISP1Lsc, Error) << "Unsupported LSC data type '" + << type << "'"; + res = -EINVAL; } - if (sets_.empty()) { - LOG(RkISP1Lsc, Error) << "Failed to load any sets"; - return -EINVAL; - } + if (res) + return res; + + sets_.setData(std::move(lscData)); return 0; } @@ -185,18 +384,12 @@ int LensShadingCorrection::configure(IPAContext &context, return 0; } -void LensShadingCorrection::setParameters(rkisp1_params_cfg *params) +void LensShadingCorrection::setParameters(rkisp1_cif_isp_lsc_config &config) { - struct rkisp1_cif_isp_lsc_config &config = params->others.lsc_config; - memcpy(config.x_grad_tbl, xGrad_, sizeof(config.x_grad_tbl)); memcpy(config.y_grad_tbl, yGrad_, sizeof(config.y_grad_tbl)); memcpy(config.x_size_tbl, xSizes_, sizeof(config.x_size_tbl)); memcpy(config.y_size_tbl, ySizes_, sizeof(config.y_size_tbl)); - - params->module_en_update |= RKISP1_CIF_ISP_MODULE_LSC; - params->module_ens |= RKISP1_CIF_ISP_MODULE_LSC; - params->module_cfg_update |= RKISP1_CIF_ISP_MODULE_LSC; } void LensShadingCorrection::copyTable(rkisp1_cif_isp_lsc_config &config, @@ -208,131 +401,34 @@ void LensShadingCorrection::copyTable(rkisp1_cif_isp_lsc_config &config, std::copy(set.b.begin(), set.b.end(), &config.b_data_tbl[0][0]); } -/* - * Interpolate LSC parameters based on color temperature value. - */ -void LensShadingCorrection::interpolateTable(rkisp1_cif_isp_lsc_config &config, - const Components &set0, - const Components &set1, - const uint32_t ct) -{ - double coeff0 = (set1.ct - ct) / static_cast<double>(set1.ct - set0.ct); - double coeff1 = (ct - set0.ct) / static_cast<double>(set1.ct - set0.ct); - - for (unsigned int i = 0; i < RKISP1_CIF_ISP_LSC_SAMPLES_MAX; ++i) { - for (unsigned int j = 0; j < RKISP1_CIF_ISP_LSC_SAMPLES_MAX; ++j) { - unsigned int sample = i * RKISP1_CIF_ISP_LSC_SAMPLES_MAX + j; - - config.r_data_tbl[i][j] = - set0.r[sample] * coeff0 + - set1.r[sample] * coeff1; - - config.gr_data_tbl[i][j] = - set0.gr[sample] * coeff0 + - set1.gr[sample] * coeff1; - - config.gb_data_tbl[i][j] = - set0.gb[sample] * coeff0 + - set1.gb[sample] * coeff1; - - config.b_data_tbl[i][j] = - set0.b[sample] * coeff0 + - set1.b[sample] * coeff1; - } - } -} - /** * \copydoc libcamera::ipa::Algorithm::prepare */ -void LensShadingCorrection::prepare(IPAContext &context, - const uint32_t frame, - [[maybe_unused]] IPAFrameContext &frameContext, - rkisp1_params_cfg *params) +void LensShadingCorrection::prepare([[maybe_unused]] IPAContext &context, + [[maybe_unused]] const uint32_t frame, + IPAFrameContext &frameContext, + RkISP1Params *params) { - struct rkisp1_cif_isp_lsc_config &config = params->others.lsc_config; - - /* - * If there is only one set, the configuration has already been done - * for first frame. - */ - if (sets_.size() == 1 && frame > 0) + uint32_t ct = frameContext.awb.temperatureK; + if (std::abs(static_cast<int>(ct) - static_cast<int>(lastAppliedCt_)) < + kColourTemperatureChangeThreshhold) return; - - /* - * If there is only one set, pick it. We can ignore lastCt_, as it will - * never be relevant. - */ - if (sets_.size() == 1) { - setParameters(params); - copyTable(config, sets_.cbegin()->second); - return; - } - - uint32_t ct = context.activeState.awb.temperatureK; - ct = std::clamp(ct, sets_.cbegin()->first, sets_.crbegin()->first); - - /* - * If the original is the same, then it means the same adjustment would - * be made. If the adjusted is the same, then it means that it's the - * same as what was actually applied. Thus in these cases we can skip - * reprogramming the LSC. - * - * original == adjusted can only happen if an interpolation - * happened, or if original has an exact entry in sets_. This means - * that if original != adjusted, then original was adjusted to - * the nearest available entry in sets_, resulting in adjusted. - * Clearly, any ct value that is in between original and adjusted - * will be adjusted to the same adjusted value, so we can skip - * reprogramming the LSC table. - * - * We also skip updating the original value, as the last one had a - * larger bound and thus a larger range of ct values that will be - * adjusted to the same adjusted. - */ - if ((lastCt_.original <= ct && ct <= lastCt_.adjusted) || - (lastCt_.adjusted <= ct && ct <= lastCt_.original)) + unsigned int quantizedCt; + const Components &set = sets_.getInterpolated(ct, &quantizedCt); + if (lastAppliedQuantizedCt_ == quantizedCt) return; - setParameters(params); + auto config = params->block<BlockType::Lsc>(); + config.setEnabled(true); + setParameters(*config); + copyTable(*config, set); - /* - * The color temperature matches exactly one of the available LSC tables. - */ - if (sets_.count(ct)) { - copyTable(config, sets_[ct]); - lastCt_ = { ct, ct }; - return; - } - - /* No shortcuts left; we need to round or interpolate */ - auto iter = sets_.upper_bound(ct); - const Components &set1 = iter->second; - const Components &set0 = (--iter)->second; - uint32_t ct0 = set0.ct; - uint32_t ct1 = set1.ct; - uint32_t diff0 = ct - ct0; - uint32_t diff1 = ct1 - ct; - static constexpr double kThreshold = 0.1; - float threshold = kThreshold * (ct1 - ct0); - - if (diff0 < threshold || diff1 < threshold) { - const Components &set = diff0 < diff1 ? set0 : set1; - LOG(RkISP1Lsc, Debug) << "using LSC table for " << set.ct; - copyTable(config, set); - lastCt_ = { ct, set.ct }; - return; - } + lastAppliedCt_ = ct; + lastAppliedQuantizedCt_ = quantizedCt; - /* - * ct is not within 10% of the difference between the neighbouring - * color temperatures, so we need to interpolate. - */ LOG(RkISP1Lsc, Debug) - << "ct is " << ct << ", interpolating between " - << ct0 << " and " << ct1; - interpolateTable(config, set0, set1, ct); - lastCt_ = { ct, ct }; + << "ct is " << ct << ", quantized to " + << quantizedCt; } REGISTER_IPA_ALGORITHM(LensShadingCorrection, "LensShadingCorrection") diff --git a/src/ipa/rkisp1/algorithms/lsc.h b/src/ipa/rkisp1/algorithms/lsc.h index e2a93a56..5a0824e3 100644 --- a/src/ipa/rkisp1/algorithms/lsc.h +++ b/src/ipa/rkisp1/algorithms/lsc.h @@ -2,13 +2,15 @@ /* * Copyright (C) 2021-2022, Ideas On Board * - * lsc.h - RkISP1 Lens Shading Correction control + * RkISP1 Lens Shading Correction control */ #pragma once #include <map> +#include "libipa/interpolator.h" + #include "algorithm.h" namespace libcamera { @@ -25,9 +27,8 @@ public: int configure(IPAContext &context, const IPACameraSensorInfo &configInfo) override; void prepare(IPAContext &context, const uint32_t frame, IPAFrameContext &frameContext, - rkisp1_params_cfg *params) override; + RkISP1Params *params) override; -private: struct Components { uint32_t ct; std::vector<uint16_t> r; @@ -36,23 +37,23 @@ private: std::vector<uint16_t> b; }; - void setParameters(rkisp1_params_cfg *params); +private: + void setParameters(rkisp1_cif_isp_lsc_config &config); void copyTable(rkisp1_cif_isp_lsc_config &config, const Components &set0); void interpolateTable(rkisp1_cif_isp_lsc_config &config, const Components &set0, const Components &set1, const uint32_t ct); - std::map<uint32_t, Components> sets_; + ipa::Interpolator<Components> sets_; std::vector<double> xSize_; std::vector<double> ySize_; uint16_t xGrad_[RKISP1_CIF_ISP_LSC_SECTORS_TBL_SIZE]; uint16_t yGrad_[RKISP1_CIF_ISP_LSC_SECTORS_TBL_SIZE]; uint16_t xSizes_[RKISP1_CIF_ISP_LSC_SECTORS_TBL_SIZE]; uint16_t ySizes_[RKISP1_CIF_ISP_LSC_SECTORS_TBL_SIZE]; - struct { - uint32_t original; - uint32_t adjusted; - } lastCt_; + + unsigned int lastAppliedCt_; + unsigned int lastAppliedQuantizedCt_; }; } /* namespace ipa::rkisp1::algorithms */ diff --git a/src/ipa/rkisp1/algorithms/lux.cpp b/src/ipa/rkisp1/algorithms/lux.cpp new file mode 100644 index 00000000..a467767e --- /dev/null +++ b/src/ipa/rkisp1/algorithms/lux.cpp @@ -0,0 +1,76 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +/* + * Copyright (C) 2024, Ideas On Board + * + * lux.cpp - RkISP1 Lux control + */ + +#include "lux.h" + +#include <libcamera/base/log.h> + +#include <libcamera/control_ids.h> + +#include "libipa/histogram.h" +#include "libipa/lux.h" + +/** + * \file lux.h + */ + +namespace libcamera { + +namespace ipa::rkisp1::algorithms { + +/** + * \class Lux + * \brief RkISP1 Lux control + * + * The Lux algorithm is responsible for estimating the lux level of the image. + * It doesn't take or generate any controls, but it provides a lux level for + * other algorithms (such as AGC) to use. + */ + +/** + * \brief Construct an rkisp1 Lux algo module + */ +Lux::Lux() +{ +} + +/** + * \copydoc libcamera::ipa::Algorithm::init + */ +int Lux::init([[maybe_unused]] IPAContext &context, const YamlObject &tuningData) +{ + return lux_.parseTuningData(tuningData); +} + +/** + * \copydoc libcamera::ipa::Algorithm::process + */ +void Lux::process(IPAContext &context, + [[maybe_unused]] const uint32_t frame, + IPAFrameContext &frameContext, + const rkisp1_stat_buffer *stats, + ControlList &metadata) +{ + utils::Duration exposureTime = context.configuration.sensor.lineDuration + * frameContext.sensor.exposure; + double gain = frameContext.sensor.gain; + + /* \todo Deduplicate the histogram calculation from AGC */ + const rkisp1_cif_isp_stat *params = &stats->params; + Histogram yHist({ params->hist.hist_bins, context.hw->numHistogramBins }, + [](uint32_t x) { return x >> 4; }); + + double lux = lux_.estimateLux(exposureTime, gain, 1.0, yHist); + frameContext.lux.lux = lux; + metadata.set(controls::Lux, lux); +} + +REGISTER_IPA_ALGORITHM(Lux, "Lux") + +} /* namespace ipa::rkisp1::algorithms */ + +} /* namespace libcamera */ diff --git a/src/ipa/rkisp1/algorithms/lux.h b/src/ipa/rkisp1/algorithms/lux.h new file mode 100644 index 00000000..8a90de55 --- /dev/null +++ b/src/ipa/rkisp1/algorithms/lux.h @@ -0,0 +1,36 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +/* + * Copyright (C) 2024, Ideas On Board + * + * lux.h - RkISP1 Lux control + */ + +#pragma once + +#include <sys/types.h> + +#include "libipa/lux.h" + +#include "algorithm.h" + +namespace libcamera { + +namespace ipa::rkisp1::algorithms { + +class Lux : public Algorithm +{ +public: + Lux(); + + int init(IPAContext &context, const YamlObject &tuningData) override; + void process(IPAContext &context, const uint32_t frame, + IPAFrameContext &frameContext, + const rkisp1_stat_buffer *stats, + ControlList &metadata) override; + +private: + ipa::Lux lux_; +}; + +} /* namespace ipa::rkisp1::algorithms */ +} /* namespace libcamera */ diff --git a/src/ipa/rkisp1/algorithms/meson.build b/src/ipa/rkisp1/algorithms/meson.build index 93a48329..c66b0b70 100644 --- a/src/ipa/rkisp1/algorithms/meson.build +++ b/src/ipa/rkisp1/algorithms/meson.build @@ -4,10 +4,13 @@ rkisp1_ipa_algorithms = files([ 'agc.cpp', 'awb.cpp', 'blc.cpp', + 'ccm.cpp', 'cproc.cpp', 'dpcc.cpp', 'dpf.cpp', 'filter.cpp', + 'goc.cpp', 'gsl.cpp', 'lsc.cpp', + 'lux.cpp', ]) diff --git a/src/ipa/rkisp1/data/imx219.yaml b/src/ipa/rkisp1/data/imx219.yaml index cbcc43b8..0d99cb52 100644 --- a/src/ipa/rkisp1/data/imx219.yaml +++ b/src/ipa/rkisp1/data/imx219.yaml @@ -6,10 +6,6 @@ algorithms: - Agc: - Awb: - BlackLevelCorrection: - R: 256 - Gr: 256 - Gb: 256 - B: 256 - LensShadingCorrection: x-size: [ 0.0625, 0.0625, 0.0625, 0.0625, 0.0625, 0.0625, 0.0625, 0.0625 ] y-size: [ 0.0625, 0.0625, 0.0625, 0.0625, 0.0625, 0.0625, 0.0625, 0.0625 ] diff --git a/src/ipa/rkisp1/data/imx258.yaml b/src/ipa/rkisp1/data/imx258.yaml index 43dddf20..202af36a 100644 --- a/src/ipa/rkisp1/data/imx258.yaml +++ b/src/ipa/rkisp1/data/imx258.yaml @@ -5,6 +5,7 @@ version: 1 algorithms: - Agc: - Awb: + - BlackLevelCorrection: - LensShadingCorrection: x-size: [ 0.0625, 0.0625, 0.0625, 0.0625, 0.0625, 0.0625, 0.0625, 0.0625 ] y-size: [ 0.0625, 0.0625, 0.0625, 0.0625, 0.0625, 0.0625, 0.0625, 0.0625 ] diff --git a/src/ipa/rkisp1/data/meson.build b/src/ipa/rkisp1/data/meson.build index f5e9fa75..1e3522b2 100644 --- a/src/ipa/rkisp1/data/meson.build +++ b/src/ipa/rkisp1/data/meson.build @@ -2,10 +2,15 @@ conf_files = files([ 'imx219.yaml', + 'imx258.yaml', + 'ov2685.yaml', 'ov4689.yaml', 'ov5640.yaml', + 'ov5695.yaml', + 'ov8858.yaml', 'uncalibrated.yaml', ]) install_data(conf_files, - install_dir : ipa_data_dir / 'rkisp1') + install_dir : ipa_data_dir / 'rkisp1', + install_tag : 'runtime') diff --git a/src/ipa/rkisp1/data/ov4689.yaml b/src/ipa/rkisp1/data/ov4689.yaml index 2068684c..60901296 100644 --- a/src/ipa/rkisp1/data/ov4689.yaml +++ b/src/ipa/rkisp1/data/ov4689.yaml @@ -6,8 +6,4 @@ algorithms: - Agc: - Awb: - BlackLevelCorrection: - R: 66 - Gr: 66 - Gb: 66 - B: 66 ... diff --git a/src/ipa/rkisp1/data/ov5640.yaml b/src/ipa/rkisp1/data/ov5640.yaml index 897b83cb..4b21d412 100644 --- a/src/ipa/rkisp1/data/ov5640.yaml +++ b/src/ipa/rkisp1/data/ov5640.yaml @@ -6,10 +6,6 @@ algorithms: - Agc: - Awb: - BlackLevelCorrection: - R: 256 - Gr: 256 - Gb: 256 - B: 256 - ColorProcessing: - GammaSensorLinearization: x-intervals: [ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2 ] diff --git a/src/ipa/rkisp1/data/uncalibrated.yaml b/src/ipa/rkisp1/data/uncalibrated.yaml index a7bbd8d8..60901296 100644 --- a/src/ipa/rkisp1/data/uncalibrated.yaml +++ b/src/ipa/rkisp1/data/uncalibrated.yaml @@ -5,4 +5,5 @@ version: 1 algorithms: - Agc: - Awb: + - BlackLevelCorrection: ... diff --git a/src/ipa/rkisp1/ipa_context.cpp b/src/ipa/rkisp1/ipa_context.cpp index 9bbf3684..65096105 100644 --- a/src/ipa/rkisp1/ipa_context.cpp +++ b/src/ipa/rkisp1/ipa_context.cpp @@ -2,7 +2,7 @@ /* * Copyright (C) 2021-2022, Ideas On Board * - * ipa_context.cpp - RkISP1 IPA Context + * RkISP1 IPA Context */ #include "ipa_context.h" @@ -15,6 +15,25 @@ namespace libcamera::ipa::rkisp1 { /** + * \struct IPAHwSettings + * \brief RkISP1 version-specific hardware parameters + */ + +/** + * \var IPAHwSettings::numAeCells + * \brief Number of cells in the AE exposure means grid + * + * \var IPAHwSettings::numHistogramBins + * \brief Number of bins in the histogram + * + * \var IPAHwSettings::numHistogramWeights + * \brief Number of weights in the histogram grid + * + * \var IPAHwSettings::numGammaOutSamples + * \brief Number of samples in the gamma out table + */ + +/** * \struct IPASessionConfiguration * \brief Session configuration for the IPA module * @@ -33,14 +52,6 @@ namespace libcamera::ipa::rkisp1 { */ /** - * \var IPASessionConfiguration::hw - * \brief RkISP1-specific hardware information - * - * \var IPASessionConfiguration::hw.revision - * \brief Hardware revision of the ISP - */ - -/** * \var IPASessionConfiguration::awb * \brief AWB parameters configuration of the IPA * @@ -67,11 +78,11 @@ namespace libcamera::ipa::rkisp1 { * \var IPASessionConfiguration::sensor * \brief Sensor-specific configuration of the IPA * - * \var IPASessionConfiguration::sensor.minShutterSpeed - * \brief Minimum shutter speed supported with the sensor + * \var IPASessionConfiguration::sensor.minExposureTime + * \brief Minimum exposure time supported with the sensor * - * \var IPASessionConfiguration::sensor.maxShutterSpeed - * \brief Maximum shutter speed supported with the sensor + * \var IPASessionConfiguration::sensor.maxExposureTime + * \brief Maximum exposure time supported with the sensor * * \var IPASessionConfiguration::sensor.minAnalogueGain * \brief Minimum analogue gain supported with the sensor @@ -95,6 +106,11 @@ namespace libcamera::ipa::rkisp1 { */ /** + * \var IPASessionConfiguration::paramFormat + * \brief The fourcc of the parameters buffers format + */ + +/** * \struct IPAActiveState * \brief Active state for algorithms * @@ -126,54 +142,86 @@ namespace libcamera::ipa::rkisp1 { * \var IPAActiveState::agc * \brief State for the Automatic Gain Control algorithm * - * The exposure and gain are the latest values computed by the AGC algorithm. + * The \a automatic variables track the latest values computed by algorithm + * based on the latest processed statistics. All other variables track the + * consolidated controls requested in queued requests. * - * \var IPAActiveState::agc.exposure - * \brief Exposure time expressed as a number of lines + * \struct IPAActiveState::agc.manual + * \brief Manual exposure time and analog gain (set through requests) * - * \var IPAActiveState::agc.gain - * \brief Analogue gain multiplier - */ - -/** - * \var IPAActiveState::awb - * \brief State for the Automatic White Balance algorithm + * \var IPAActiveState::agc.manual.exposure + * \brief Manual exposure time expressed as a number of lines as set by the + * ExposureTime control * - * \struct IPAActiveState::awb.gains - * \brief White balance gains + * \var IPAActiveState::agc.manual.gain + * \brief Manual analogue gain as set by the AnalogueGain control * - * \struct IPAActiveState::awb.gains.manual - * \brief Manual white balance gains (set through requests) + * \struct IPAActiveState::agc.automatic + * \brief Automatic exposure time and analog gain (computed by the algorithm) * - * \var IPAActiveState::awb.gains.manual.red - * \brief Manual white balance gain for R channel + * \var IPAActiveState::agc.automatic.exposure + * \brief Automatic exposure time expressed as a number of lines * - * \var IPAActiveState::awb.gains.manual.green - * \brief Manual white balance gain for G channel + * \var IPAActiveState::agc.automatic.gain + * \brief Automatic analogue gain multiplier * - * \var IPAActiveState::awb.gains.manual.blue - * \brief Manual white balance gain for B channel + * \var IPAActiveState::agc.autoExposureEnabled + * \brief Manual/automatic AGC state (exposure) as set by the ExposureTimeMode control * - * \struct IPAActiveState::awb.gains.automatic - * \brief Automatic white balance gains (computed by the algorithm) + * \var IPAActiveState::agc.autoGainEnabled + * \brief Manual/automatic AGC state (gain) as set by the AnalogueGainMode control * - * \var IPAActiveState::awb.gains.automatic.red - * \brief Automatic white balance gain for R channel + * \var IPAActiveState::agc.constraintMode + * \brief Constraint mode as set by the AeConstraintMode control * - * \var IPAActiveState::awb.gains.automatic.green - * \brief Automatic white balance gain for G channel + * \var IPAActiveState::agc.exposureMode + * \brief Exposure mode as set by the AeExposureMode control * - * \var IPAActiveState::awb.gains.automatic.blue - * \brief Automatic white balance gain for B channel + * \var IPAActiveState::agc.meteringMode + * \brief Metering mode as set by the AeMeteringMode control * - * \var IPAActiveState::awb.temperatureK - * \brief Estimated color temperature + * \var IPAActiveState::agc.minFrameDuration + * \brief Minimum frame duration as set by the FrameDurationLimits control + * + * \var IPAActiveState::agc.maxFrameDuration + * \brief Maximum frame duration as set by the FrameDurationLimits control + */ + +/** + * \var IPAActiveState::awb + * \brief State for the Automatic White Balance algorithm + * + * \struct IPAActiveState::awb::AwbState + * \brief Struct for the AWB regulation state + * + * \var IPAActiveState::awb::AwbState.gains + * \brief White balance gains + * + * \var IPAActiveState::awb::AwbState.temperatureK + * \brief Color temperature + * + * \var IPAActiveState::awb.manual + * \brief Manual regulation state (set through requests) + * + * \var IPAActiveState::awb.automatic + * \brief Automatic regulation state (computed by the algorithm) * * \var IPAActiveState::awb.autoEnabled * \brief Whether the Auto White Balance algorithm is enabled */ /** + * \var IPAActiveState::ccm + * \brief State for the Colour Correction Matrix algorithm + * + * \var IPAActiveState::ccm.manual + * \brief Manual CCM (set through requests) + * + * \var IPAActiveState::awb.automatic + * \brief Automatic CCM (computed by the algorithm) + */ + +/** * \var IPAActiveState::cproc * \brief State for the Color Processing algorithm * @@ -207,6 +255,14 @@ namespace libcamera::ipa::rkisp1 { */ /** + * \var IPAActiveState::goc + * \brief State for the goc algorithm + * + * \var IPAActiveState::goc.gamma + * \brief Gamma value applied as 1.0/gamma + */ + +/** * \struct IPAFrameContext * \brief Per-frame context for algorithms * @@ -243,15 +299,57 @@ namespace libcamera::ipa::rkisp1 { * \brief Automatic Gain Control parameters for this frame * * The exposure and gain are provided by the AGC algorithm, and are to be - * applied to the sensor in order to take effect for this frame. + * applied to the sensor in order to take effect for this frame. Additionally + * the vertical blanking period is determined to maintain a consistent frame + * rate matched to the FrameDurationLimits as set by the user. * * \var IPAFrameContext::agc.exposure - * \brief Exposure time expressed as a number of lines + * \brief Exposure time expressed as a number of lines computed by the algorithm * * \var IPAFrameContext::agc.gain - * \brief Analogue gain multiplier + * \brief Analogue gain multiplier computed by the algorithm * * The gain should be adapted to the sensor specific gain code before applying. + * + * \var IPAFrameContext::agc.vblank + * \brief Vertical blanking parameter computed by the algorithm + * + * \var IPAFrameContext::agc.autoExposureEnabled + * \brief Manual/automatic AGC state (exposure) as set by the ExposureTimeMode control + * + * \var IPAFrameContext::agc.autoGainEnabled + * \brief Manual/automatic AGC state (gain) as set by the AnalogueGainMode control + * + * \var IPAFrameContext::agc.constraintMode + * \brief Constraint mode as set by the AeConstraintMode control + * + * \var IPAFrameContext::agc.exposureMode + * \brief Exposure mode as set by the AeExposureMode control + * + * \var IPAFrameContext::agc.meteringMode + * \brief Metering mode as set by the AeMeteringMode control + * + * \var IPAFrameContext::agc.minFrameDuration + * \brief Minimum frame duration as set by the FrameDurationLimits control + * + * \var IPAFrameContext::agc.maxFrameDuration + * \brief Maximum frame duration as set by the FrameDurationLimits control + * + * \var IPAFrameContext::agc.frameDuration + * \brief The actual FrameDuration used by the algorithm for the frame + * + * \var IPAFrameContext::agc.updateMetering + * \brief Indicate if new ISP AGC metering parameters need to be applied + * + * \var IPAFrameContext::agc.autoExposureModeChange + * \brief Indicate if autoExposureEnabled has changed from true in the previous + * frame to false in the current frame, and no manual exposure value has been + * supplied in the current frame. + * + * \var IPAFrameContext::agc.autoGainModeChange + * \brief Indicate if autoGainEnabled has changed from true in the previous + * frame to false in the current frame, and no manual gain value has been + * supplied in the current frame. */ /** @@ -261,23 +359,25 @@ namespace libcamera::ipa::rkisp1 { * \struct IPAFrameContext::awb.gains * \brief White balance gains * - * \var IPAFrameContext::awb.gains.red - * \brief White balance gain for R channel - * - * \var IPAFrameContext::awb.gains.green - * \brief White balance gain for G channel - * - * \var IPAFrameContext::awb.gains.blue - * \brief White balance gain for B channel - * * \var IPAFrameContext::awb.temperatureK - * \brief Estimated color temperature + * \brief Color temperature used for processing this frame + * + * This does not match the color temperature estimated for this frame as the + * measurements were taken on a previous frame. * * \var IPAFrameContext::awb.autoEnabled * \brief Whether the Auto White Balance algorithm is enabled */ /** + * \var IPAFrameContext::ccm + * \brief Colour Correction Matrix parameters for this frame + * + * \struct IPAFrameContext::ccm.ccm + * \brief Colour Correction Matrix + */ + +/** * \var IPAFrameContext::cproc * \brief Color Processing parameters for this frame * @@ -323,6 +423,18 @@ namespace libcamera::ipa::rkisp1 { */ /** + * \var IPAFrameContext::goc + * \brief Gamma out correction parameters for this frame + * + * \var IPAFrameContext::goc.gamma + * \brief Gamma value applied as 1.0/gamma + * + * \var IPAFrameContext::goc.update + * \brief Indicates if the goc parameters have been updated compared to the + * previous frame + */ + +/** * \var IPAFrameContext::sensor * \brief Sensor configuration that used been used for this frame * @@ -337,6 +449,12 @@ namespace libcamera::ipa::rkisp1 { * \struct IPAContext * \brief Global IPA context data shared between all algorithms * + * \var IPAContext::hw + * \brief RkISP1 version-specific hardware parameters + * + * \var IPAContext::sensorInfo + * \brief The IPA session sensorInfo, immutable during the session + * * \var IPAContext::configuration * \brief The IPA session configuration, immutable during the session * diff --git a/src/ipa/rkisp1/ipa_context.h b/src/ipa/rkisp1/ipa_context.h index b9b20653..f0d50421 100644 --- a/src/ipa/rkisp1/ipa_context.h +++ b/src/ipa/rkisp1/ipa_context.h @@ -2,24 +2,43 @@ /* * Copyright (C) 2021-2022, Ideas On Board * - * ipa_context.h - RkISP1 IPA Context + * RkISP1 IPA Context * */ #pragma once +#include <memory> + #include <linux/rkisp1-config.h> #include <libcamera/base/utils.h> +#include <libcamera/control_ids.h> +#include <libcamera/controls.h> #include <libcamera/geometry.h> +#include <libcamera/ipa/core_ipa_interface.h> + +#include "libcamera/internal/debug_controls.h" +#include "libcamera/internal/matrix.h" +#include "libcamera/internal/vector.h" + +#include <libipa/camera_sensor_helper.h> #include <libipa/fc_queue.h> namespace libcamera { namespace ipa::rkisp1 { +struct IPAHwSettings { + unsigned int numAeCells; + unsigned int numHistogramBins; + unsigned int numHistogramWeights; + unsigned int numGammaOutSamples; + bool compand; +}; + struct IPASessionConfiguration { struct { struct rkisp1_cif_isp_window measureWindow; @@ -35,8 +54,8 @@ struct IPASessionConfiguration { } lsc; struct { - utils::Duration minShutterSpeed; - utils::Duration maxShutterSpeed; + utils::Duration minExposureTime; + utils::Duration maxExposureTime; double minAnalogueGain; double maxAnalogueGain; @@ -45,11 +64,8 @@ struct IPASessionConfiguration { Size size; } sensor; - struct { - rkisp1_cif_isp_version revision; - } hw; - bool raw; + uint32_t paramFormat; }; struct IPAActiveState { @@ -63,28 +79,33 @@ struct IPAActiveState { double gain; } automatic; - bool autoEnabled; + bool autoExposureEnabled; + bool autoGainEnabled; + controls::AeConstraintModeEnum constraintMode; + controls::AeExposureModeEnum exposureMode; + controls::AeMeteringModeEnum meteringMode; + utils::Duration minFrameDuration; + utils::Duration maxFrameDuration; } agc; struct { - struct { - struct { - double red; - double green; - double blue; - } manual; - struct { - double red; - double green; - double blue; - } automatic; - } gains; + struct AwbState { + RGB<double> gains; + unsigned int temperatureK; + }; + + AwbState manual; + AwbState automatic; - unsigned int temperatureK; bool autoEnabled; } awb; struct { + Matrix<float, 3, 3> manual; + Matrix<float, 3, 3> automatic; + } ccm; + + struct { int8_t brightness; uint8_t contrast; uint8_t saturation; @@ -98,24 +119,34 @@ struct IPAActiveState { uint8_t denoise; uint8_t sharpness; } filter; + + struct { + double gamma; + } goc; }; struct IPAFrameContext : public FrameContext { struct { uint32_t exposure; double gain; - bool autoEnabled; + uint32_t vblank; + bool autoExposureEnabled; + bool autoGainEnabled; + controls::AeConstraintModeEnum constraintMode; + controls::AeExposureModeEnum exposureMode; + controls::AeMeteringModeEnum meteringMode; + utils::Duration minFrameDuration; + utils::Duration maxFrameDuration; + utils::Duration frameDuration; + bool updateMetering; + bool autoExposureModeChange; + bool autoGainModeChange; } agc; struct { - struct { - double red; - double green; - double blue; - } gains; - - unsigned int temperatureK; + RGB<double> gains; bool autoEnabled; + unsigned int temperatureK; } awb; struct { @@ -137,16 +168,43 @@ struct IPAFrameContext : public FrameContext { } filter; struct { + double gamma; + bool update; + } goc; + + struct { uint32_t exposure; double gain; } sensor; + + struct { + Matrix<float, 3, 3> ccm; + } ccm; + + struct { + double lux; + } lux; }; struct IPAContext { + IPAContext(unsigned int frameContextSize) + : hw(nullptr), frameContexts(frameContextSize) + { + } + + const IPAHwSettings *hw; + IPACameraSensorInfo sensorInfo; IPASessionConfiguration configuration; IPAActiveState activeState; FCQueue<IPAFrameContext> frameContexts; + + ControlInfoMap::Map ctrlMap; + + DebugMetadata debugMetadata; + + /* Interface to the Camera Helper */ + std::unique_ptr<CameraSensorHelper> camHelper; }; } /* namespace ipa::rkisp1 */ diff --git a/src/ipa/rkisp1/meson.build b/src/ipa/rkisp1/meson.build index e813da53..26a9fa40 100644 --- a/src/ipa/rkisp1/meson.build +++ b/src/ipa/rkisp1/meson.build @@ -7,17 +7,16 @@ ipa_name = 'ipa_rkisp1' rkisp1_ipa_sources = files([ 'ipa_context.cpp', + 'params.cpp', 'rkisp1.cpp', ]) rkisp1_ipa_sources += rkisp1_ipa_algorithms -mod = shared_module(ipa_name, - [rkisp1_ipa_sources, libcamera_generated_ipa_headers], +mod = shared_module(ipa_name, rkisp1_ipa_sources, name_prefix : '', - include_directories : [ipa_includes, libipa_includes], - dependencies : libcamera_private, - link_with : libipa, + include_directories : [ipa_includes], + dependencies : [libcamera_private, libipa_dep], install : true, install_dir : ipa_install_dir) diff --git a/src/ipa/rkisp1/module.h b/src/ipa/rkisp1/module.h index 89f83208..69e9bc82 100644 --- a/src/ipa/rkisp1/module.h +++ b/src/ipa/rkisp1/module.h @@ -2,7 +2,7 @@ /* * Copyright (C) 2022, Ideas On Board * - * module.h - RkISP1 IPA Module + * RkISP1 IPA Module */ #pragma once @@ -14,13 +14,14 @@ #include <libipa/module.h> #include "ipa_context.h" +#include "params.h" namespace libcamera { namespace ipa::rkisp1 { using Module = ipa::Module<IPAContext, IPAFrameContext, IPACameraSensorInfo, - rkisp1_params_cfg, rkisp1_stat_buffer>; + RkISP1Params, rkisp1_stat_buffer>; } /* namespace ipa::rkisp1 */ diff --git a/src/ipa/rkisp1/params.cpp b/src/ipa/rkisp1/params.cpp new file mode 100644 index 00000000..4c0b051c --- /dev/null +++ b/src/ipa/rkisp1/params.cpp @@ -0,0 +1,222 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +/* + * Copyright (C) 2024, Ideas On Board + * + * RkISP1 ISP Parameters + */ + +#include "params.h" + +#include <map> +#include <stddef.h> +#include <string.h> + +#include <linux/rkisp1-config.h> +#include <linux/videodev2.h> + +#include <libcamera/base/log.h> +#include <libcamera/base/utils.h> + +namespace libcamera { + +LOG_DEFINE_CATEGORY(RkISP1Params) + +namespace ipa::rkisp1 { + +namespace { + +struct BlockTypeInfo { + enum rkisp1_ext_params_block_type type; + size_t size; + size_t offset; + uint32_t enableBit; +}; + +#define RKISP1_BLOCK_TYPE_ENTRY(block, id, type, category, bit) \ + { BlockType::block, { \ + RKISP1_EXT_PARAMS_BLOCK_TYPE_##id, \ + sizeof(struct rkisp1_cif_isp_##type##_config), \ + offsetof(struct rkisp1_params_cfg, category.type##_config), \ + RKISP1_CIF_ISP_MODULE_##bit, \ + } } + +#define RKISP1_BLOCK_TYPE_ENTRY_MEAS(block, id, type) \ + RKISP1_BLOCK_TYPE_ENTRY(block, id##_MEAS, type, meas, id) + +#define RKISP1_BLOCK_TYPE_ENTRY_OTHERS(block, id, type) \ + RKISP1_BLOCK_TYPE_ENTRY(block, id, type, others, id) + +#define RKISP1_BLOCK_TYPE_ENTRY_EXT(block, id, type) \ + { BlockType::block, { \ + RKISP1_EXT_PARAMS_BLOCK_TYPE_##id, \ + sizeof(struct rkisp1_cif_isp_##type##_config), \ + 0, 0, \ + } } + +const std::map<BlockType, BlockTypeInfo> kBlockTypeInfo = { + RKISP1_BLOCK_TYPE_ENTRY_OTHERS(Bls, BLS, bls), + RKISP1_BLOCK_TYPE_ENTRY_OTHERS(Dpcc, DPCC, dpcc), + RKISP1_BLOCK_TYPE_ENTRY_OTHERS(Sdg, SDG, sdg), + RKISP1_BLOCK_TYPE_ENTRY_OTHERS(AwbGain, AWB_GAIN, awb_gain), + RKISP1_BLOCK_TYPE_ENTRY_OTHERS(Flt, FLT, flt), + RKISP1_BLOCK_TYPE_ENTRY_OTHERS(Bdm, BDM, bdm), + RKISP1_BLOCK_TYPE_ENTRY_OTHERS(Ctk, CTK, ctk), + RKISP1_BLOCK_TYPE_ENTRY_OTHERS(Goc, GOC, goc), + RKISP1_BLOCK_TYPE_ENTRY_OTHERS(Dpf, DPF, dpf), + RKISP1_BLOCK_TYPE_ENTRY_OTHERS(DpfStrength, DPF_STRENGTH, dpf_strength), + RKISP1_BLOCK_TYPE_ENTRY_OTHERS(Cproc, CPROC, cproc), + RKISP1_BLOCK_TYPE_ENTRY_OTHERS(Ie, IE, ie), + RKISP1_BLOCK_TYPE_ENTRY_OTHERS(Lsc, LSC, lsc), + RKISP1_BLOCK_TYPE_ENTRY_MEAS(Awb, AWB, awb_meas), + RKISP1_BLOCK_TYPE_ENTRY_MEAS(Hst, HST, hst), + RKISP1_BLOCK_TYPE_ENTRY_MEAS(Aec, AEC, aec), + RKISP1_BLOCK_TYPE_ENTRY_MEAS(Afc, AFC, afc), + RKISP1_BLOCK_TYPE_ENTRY_EXT(CompandBls, COMPAND_BLS, compand_bls), + RKISP1_BLOCK_TYPE_ENTRY_EXT(CompandExpand, COMPAND_EXPAND, compand_curve), + RKISP1_BLOCK_TYPE_ENTRY_EXT(CompandCompress, COMPAND_COMPRESS, compand_curve), +}; + +} /* namespace */ + +RkISP1ParamsBlockBase::RkISP1ParamsBlockBase(RkISP1Params *params, BlockType type, + const Span<uint8_t> &data) + : params_(params), type_(type) +{ + if (params_->format() == V4L2_META_FMT_RK_ISP1_EXT_PARAMS) { + header_ = data.subspan(0, sizeof(rkisp1_ext_params_block_header)); + data_ = data.subspan(sizeof(rkisp1_ext_params_block_header)); + } else { + data_ = data; + } +} + +void RkISP1ParamsBlockBase::setEnabled(bool enabled) +{ + /* + * For the legacy fixed format, blocks are enabled in the top-level + * header. Delegate to the RkISP1Params class. + */ + if (params_->format() == V4L2_META_FMT_RK_ISP1_PARAMS) + return params_->setBlockEnabled(type_, enabled); + + /* + * For the extensible format, set the enable and disable flags in the + * block header directly. + */ + struct rkisp1_ext_params_block_header *header = + reinterpret_cast<struct rkisp1_ext_params_block_header *>(header_.data()); + header->flags &= ~(RKISP1_EXT_PARAMS_FL_BLOCK_ENABLE | + RKISP1_EXT_PARAMS_FL_BLOCK_DISABLE); + header->flags |= enabled ? RKISP1_EXT_PARAMS_FL_BLOCK_ENABLE + : RKISP1_EXT_PARAMS_FL_BLOCK_DISABLE; +} + +RkISP1Params::RkISP1Params(uint32_t format, Span<uint8_t> data) + : format_(format), data_(data), used_(0) +{ + if (format_ == V4L2_META_FMT_RK_ISP1_EXT_PARAMS) { + struct rkisp1_ext_params_cfg *cfg = + reinterpret_cast<struct rkisp1_ext_params_cfg *>(data.data()); + + cfg->version = RKISP1_EXT_PARAM_BUFFER_V1; + cfg->data_size = 0; + + used_ += offsetof(struct rkisp1_ext_params_cfg, data); + } else { + memset(data.data(), 0, data.size()); + used_ = sizeof(struct rkisp1_params_cfg); + } +} + +void RkISP1Params::setBlockEnabled(BlockType type, bool enabled) +{ + const BlockTypeInfo &info = kBlockTypeInfo.at(type); + + struct rkisp1_params_cfg *cfg = + reinterpret_cast<struct rkisp1_params_cfg *>(data_.data()); + if (enabled) + cfg->module_ens |= info.enableBit; + else + cfg->module_ens &= ~info.enableBit; +} + +Span<uint8_t> RkISP1Params::block(BlockType type) +{ + auto infoIt = kBlockTypeInfo.find(type); + if (infoIt == kBlockTypeInfo.end()) { + LOG(RkISP1Params, Error) + << "Invalid parameters block type " + << utils::to_underlying(type); + return {}; + } + + const BlockTypeInfo &info = infoIt->second; + + /* + * For the legacy format, return a block referencing the fixed location + * of the data. + */ + if (format_ == V4L2_META_FMT_RK_ISP1_PARAMS) { + /* + * Blocks available only in extended parameters have an offset + * of 0. Return nullptr in that case. + */ + if (info.offset == 0) { + LOG(RkISP1Params, Error) + << "Block type " << utils::to_underlying(type) + << " unavailable in fixed parameters format"; + return {}; + } + + struct rkisp1_params_cfg *cfg = + reinterpret_cast<struct rkisp1_params_cfg *>(data_.data()); + + cfg->module_cfg_update |= info.enableBit; + cfg->module_en_update |= info.enableBit; + + return data_.subspan(info.offset, info.size); + } + + /* + * For the extensible format, allocate memory for the block, including + * the header. Look up the block in the cache first. If an algorithm + * requests the same block type twice, it should get the same block. + */ + auto cacheIt = blocks_.find(type); + if (cacheIt != blocks_.end()) + return cacheIt->second; + + /* Make sure we don't run out of space. */ + size_t size = sizeof(struct rkisp1_ext_params_block_header) + + ((info.size + 7) & ~7); + if (size > data_.size() - used_) { + LOG(RkISP1Params, Error) + << "Out of memory to allocate block type " + << utils::to_underlying(type); + return {}; + } + + /* Allocate a new block, clear its memory, and initialize its header. */ + Span<uint8_t> block = data_.subspan(used_, size); + used_ += size; + + struct rkisp1_ext_params_cfg *cfg = + reinterpret_cast<struct rkisp1_ext_params_cfg *>(data_.data()); + cfg->data_size += size; + + memset(block.data(), 0, block.size()); + + struct rkisp1_ext_params_block_header *header = + reinterpret_cast<struct rkisp1_ext_params_block_header *>(block.data()); + header->type = info.type; + header->size = block.size(); + + /* Update the cache. */ + blocks_[type] = block; + + return block; +} + +} /* namespace ipa::rkisp1 */ + +} /* namespace libcamera */ diff --git a/src/ipa/rkisp1/params.h b/src/ipa/rkisp1/params.h new file mode 100644 index 00000000..40450e34 --- /dev/null +++ b/src/ipa/rkisp1/params.h @@ -0,0 +1,163 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +/* + * Copyright (C) 2024, Ideas On Board + * + * RkISP1 ISP Parameters + */ + +#pragma once + +#include <map> +#include <stdint.h> + +#include <linux/rkisp1-config.h> + +#include <libcamera/base/class.h> +#include <libcamera/base/span.h> + +namespace libcamera { + +namespace ipa::rkisp1 { + +enum class BlockType { + Bls, + Dpcc, + Sdg, + AwbGain, + Flt, + Bdm, + Ctk, + Goc, + Dpf, + DpfStrength, + Cproc, + Ie, + Lsc, + Awb, + Hst, + Aec, + Afc, + CompandBls, + CompandExpand, + CompandCompress, +}; + +namespace details { + +template<BlockType B> +struct block_type { +}; + +#define RKISP1_DEFINE_BLOCK_TYPE(blockType, blockStruct) \ +template<> \ +struct block_type<BlockType::blockType> { \ + using type = struct rkisp1_cif_isp_##blockStruct##_config; \ +}; + +RKISP1_DEFINE_BLOCK_TYPE(Bls, bls) +RKISP1_DEFINE_BLOCK_TYPE(Dpcc, dpcc) +RKISP1_DEFINE_BLOCK_TYPE(Sdg, sdg) +RKISP1_DEFINE_BLOCK_TYPE(AwbGain, awb_gain) +RKISP1_DEFINE_BLOCK_TYPE(Flt, flt) +RKISP1_DEFINE_BLOCK_TYPE(Bdm, bdm) +RKISP1_DEFINE_BLOCK_TYPE(Ctk, ctk) +RKISP1_DEFINE_BLOCK_TYPE(Goc, goc) +RKISP1_DEFINE_BLOCK_TYPE(Dpf, dpf) +RKISP1_DEFINE_BLOCK_TYPE(DpfStrength, dpf_strength) +RKISP1_DEFINE_BLOCK_TYPE(Cproc, cproc) +RKISP1_DEFINE_BLOCK_TYPE(Ie, ie) +RKISP1_DEFINE_BLOCK_TYPE(Lsc, lsc) +RKISP1_DEFINE_BLOCK_TYPE(Awb, awb_meas) +RKISP1_DEFINE_BLOCK_TYPE(Hst, hst) +RKISP1_DEFINE_BLOCK_TYPE(Aec, aec) +RKISP1_DEFINE_BLOCK_TYPE(Afc, afc) +RKISP1_DEFINE_BLOCK_TYPE(CompandBls, compand_bls) +RKISP1_DEFINE_BLOCK_TYPE(CompandExpand, compand_curve) +RKISP1_DEFINE_BLOCK_TYPE(CompandCompress, compand_curve) + +} /* namespace details */ + +class RkISP1Params; + +class RkISP1ParamsBlockBase +{ +public: + RkISP1ParamsBlockBase(RkISP1Params *params, BlockType type, + const Span<uint8_t> &data); + + Span<uint8_t> data() const { return data_; } + + void setEnabled(bool enabled); + +private: + LIBCAMERA_DISABLE_COPY(RkISP1ParamsBlockBase) + + RkISP1Params *params_; + BlockType type_; + Span<uint8_t> header_; + Span<uint8_t> data_; +}; + +template<BlockType B> +class RkISP1ParamsBlock : public RkISP1ParamsBlockBase +{ +public: + using Type = typename details::block_type<B>::type; + + RkISP1ParamsBlock(RkISP1Params *params, const Span<uint8_t> &data) + : RkISP1ParamsBlockBase(params, B, data) + { + } + + const Type *operator->() const + { + return reinterpret_cast<const Type *>(data().data()); + } + + Type *operator->() + { + return reinterpret_cast<Type *>(data().data()); + } + + const Type &operator*() const & + { + return *reinterpret_cast<const Type *>(data().data()); + } + + Type &operator*() & + { + return *reinterpret_cast<Type *>(data().data()); + } +}; + +class RkISP1Params +{ +public: + RkISP1Params(uint32_t format, Span<uint8_t> data); + + template<BlockType B> + RkISP1ParamsBlock<B> block() + { + return RkISP1ParamsBlock<B>(this, block(B)); + } + + uint32_t format() const { return format_; } + size_t size() const { return used_; } + +private: + friend class RkISP1ParamsBlockBase; + + Span<uint8_t> block(BlockType type); + void setBlockEnabled(BlockType type, bool enabled); + + uint32_t format_; + + Span<uint8_t> data_; + size_t used_; + + std::map<BlockType, Span<uint8_t>> blocks_; +}; + +} /* namespace ipa::rkisp1 */ + +} /* namespace libcamera*/ diff --git a/src/ipa/rkisp1/rkisp1.cpp b/src/ipa/rkisp1/rkisp1.cpp index 6544c925..1ed7d7d9 100644 --- a/src/ipa/rkisp1/rkisp1.cpp +++ b/src/ipa/rkisp1/rkisp1.cpp @@ -2,12 +2,12 @@ /* * Copyright (C) 2019, Google Inc. * - * rkisp1.cpp - RkISP1 Image Processing Algorithms + * RkISP1 Image Processing Algorithms */ #include <algorithm> -#include <math.h> -#include <queue> +#include <array> +#include <chrono> #include <stdint.h> #include <string.h> @@ -18,20 +18,22 @@ #include <libcamera/base/log.h> #include <libcamera/control_ids.h> +#include <libcamera/controls.h> #include <libcamera/framebuffer.h> +#include <libcamera/request.h> + #include <libcamera/ipa/ipa_interface.h> #include <libcamera/ipa/ipa_module_info.h> #include <libcamera/ipa/rkisp1_ipa_interface.h> -#include <libcamera/request.h> #include "libcamera/internal/formats.h" #include "libcamera/internal/mapped_framebuffer.h" #include "libcamera/internal/yaml_parser.h" #include "algorithms/algorithm.h" -#include "libipa/camera_sensor_helper.h" #include "ipa_context.h" +#include "params.h" namespace libcamera { @@ -63,9 +65,9 @@ public: void unmapBuffers(const std::vector<unsigned int> &ids) override; void queueRequest(const uint32_t frame, const ControlList &controls) override; - void fillParamsBuffer(const uint32_t frame, const uint32_t bufferId) override; - void processStatsBuffer(const uint32_t frame, const uint32_t bufferId, - const ControlList &sensorControls) override; + void computeParams(const uint32_t frame, const uint32_t bufferId) override; + void processStats(const uint32_t frame, const uint32_t bufferId, + const ControlList &sensorControls) override; protected: std::string logPrefix() const override; @@ -81,29 +83,39 @@ private: ControlInfoMap sensorControls_; - /* revision-specific data */ - rkisp1_cif_isp_version hwRevision_; - unsigned int hwHistBinNMax_; - unsigned int hwGammaOutMaxSamples_; - unsigned int hwHistogramWeightGridsSize_; - - /* Interface to the Camera Helper */ - std::unique_ptr<CameraSensorHelper> camHelper_; - /* Local parameter storage */ struct IPAContext context_; }; namespace { +const IPAHwSettings ipaHwSettingsV10{ + RKISP1_CIF_ISP_AE_MEAN_MAX_V10, + RKISP1_CIF_ISP_HIST_BIN_N_MAX_V10, + RKISP1_CIF_ISP_HISTOGRAM_WEIGHT_GRIDS_SIZE_V10, + RKISP1_CIF_ISP_GAMMA_OUT_MAX_SAMPLES_V10, + false, +}; + +const IPAHwSettings ipaHwSettingsIMX8MP{ + RKISP1_CIF_ISP_AE_MEAN_MAX_V10, + RKISP1_CIF_ISP_HIST_BIN_N_MAX_V10, + RKISP1_CIF_ISP_HISTOGRAM_WEIGHT_GRIDS_SIZE_V10, + RKISP1_CIF_ISP_GAMMA_OUT_MAX_SAMPLES_V10, + true, +}; + +const IPAHwSettings ipaHwSettingsV12{ + RKISP1_CIF_ISP_AE_MEAN_MAX_V12, + RKISP1_CIF_ISP_HIST_BIN_N_MAX_V12, + RKISP1_CIF_ISP_HISTOGRAM_WEIGHT_GRIDS_SIZE_V12, + RKISP1_CIF_ISP_GAMMA_OUT_MAX_SAMPLES_V12, + false, +}; + /* List of controls handled by the RkISP1 IPA */ const ControlInfoMap::Map rkisp1Controls{ - { &controls::AeEnable, ControlInfo(false, true) }, - { &controls::AwbEnable, ControlInfo(false, true) }, - { &controls::ColourGains, ControlInfo(0.0f, 3.996f, 1.0f) }, - { &controls::Brightness, ControlInfo(-1.0f, 0.993f, 0.0f) }, - { &controls::Contrast, ControlInfo(0.0f, 1.993f, 1.0f) }, - { &controls::Saturation, ControlInfo(0.0f, 1.993f, 1.0f) }, + { &controls::DebugMetadataEnable, ControlInfo(false, true, false) }, { &controls::Sharpness, ControlInfo(0.0f, 10.0f, 1.0f) }, { &controls::draft::NoiseReductionMode, ControlInfo(controls::draft::NoiseReductionModeValues) }, }; @@ -111,7 +123,7 @@ const ControlInfoMap::Map rkisp1Controls{ } /* namespace */ IPARkISP1::IPARkISP1() - : context_({ {}, {}, { kMaxFrameContexts } }) + : context_(kMaxFrameContexts) { } @@ -128,14 +140,13 @@ int IPARkISP1::init(const IPASettings &settings, unsigned int hwRevision, /* \todo Add support for other revisions */ switch (hwRevision) { case RKISP1_V10: - hwHistBinNMax_ = RKISP1_CIF_ISP_HIST_BIN_N_MAX_V10; - hwGammaOutMaxSamples_ = RKISP1_CIF_ISP_GAMMA_OUT_MAX_SAMPLES_V10; - hwHistogramWeightGridsSize_ = RKISP1_CIF_ISP_HISTOGRAM_WEIGHT_GRIDS_SIZE_V10; + context_.hw = &ipaHwSettingsV10; + break; + case RKISP1_V_IMX8MP: + context_.hw = &ipaHwSettingsIMX8MP; break; case RKISP1_V12: - hwHistBinNMax_ = RKISP1_CIF_ISP_HIST_BIN_N_MAX_V12; - hwGammaOutMaxSamples_ = RKISP1_CIF_ISP_GAMMA_OUT_MAX_SAMPLES_V12; - hwHistogramWeightGridsSize_ = RKISP1_CIF_ISP_HISTOGRAM_WEIGHT_GRIDS_SIZE_V12; + context_.hw = &ipaHwSettingsV12; break; default: LOG(IPARkISP1, Error) @@ -146,19 +157,18 @@ int IPARkISP1::init(const IPASettings &settings, unsigned int hwRevision, LOG(IPARkISP1, Debug) << "Hardware revision is " << hwRevision; - /* Cache the value to set it in configure. */ - hwRevision_ = static_cast<rkisp1_cif_isp_version>(hwRevision); + context_.sensorInfo = sensorInfo; - camHelper_ = CameraSensorHelperFactoryBase::create(settings.sensorModel); - if (!camHelper_) { + context_.camHelper = CameraSensorHelperFactoryBase::create(settings.sensorModel); + if (!context_.camHelper) { LOG(IPARkISP1, Error) << "Failed to create camera sensor helper for " << settings.sensorModel; return -ENODEV; } - context_.configuration.sensor.lineDuration = sensorInfo.minLineLength - * 1.0s / sensorInfo.pixelRate; + context_.configuration.sensor.lineDuration = + sensorInfo.minLineLength * 1.0s / sensorInfo.pixelRate; /* Load the tuning data file. */ File file(settings.configurationFile); @@ -199,8 +209,7 @@ int IPARkISP1::init(const IPASettings &settings, unsigned int hwRevision, int IPARkISP1::start() { - setControls(0); - + /* \todo Properly handle startup controls. */ return 0; } @@ -232,8 +241,7 @@ int IPARkISP1::configure(const IPAConfigInfo &ipaConfig, context_.activeState = {}; context_.frameContexts.clear(); - /* Set the hardware revision for the algorithms. */ - context_.configuration.hw.revision = hwRevision_; + context_.configuration.paramFormat = ipaConfig.paramFormat; const IPACameraSensorInfo &info = ipaConfig.sensorInfo; const ControlInfo vBlank = sensorControls_.find(V4L2_CID_VBLANK)->second; @@ -246,17 +254,19 @@ int IPARkISP1::configure(const IPAConfigInfo &ipaConfig, /* * When the AGC computes the new exposure values for a frame, it needs - * to know the limits for shutter speed and analogue gain. - * As it depends on the sensor, update it with the controls. + * to know the limits for exposure time and analogue gain. As it depends + * on the sensor, update it with the controls. * - * \todo take VBLANK into account for maximum shutter speed + * \todo take VBLANK into account for maximum exposure time */ - context_.configuration.sensor.minShutterSpeed = + context_.configuration.sensor.minExposureTime = minExposure * context_.configuration.sensor.lineDuration; - context_.configuration.sensor.maxShutterSpeed = + context_.configuration.sensor.maxExposureTime = maxExposure * context_.configuration.sensor.lineDuration; - context_.configuration.sensor.minAnalogueGain = camHelper_->gain(minGain); - context_.configuration.sensor.maxAnalogueGain = camHelper_->gain(maxGain); + context_.configuration.sensor.minAnalogueGain = + context_.camHelper->gain(minGain); + context_.configuration.sensor.maxAnalogueGain = + context_.camHelper->gain(maxGain); context_.configuration.raw = std::any_of(streamConfig.begin(), streamConfig.end(), [](auto &cfg) -> bool { @@ -314,6 +324,7 @@ void IPARkISP1::unmapBuffers(const std::vector<unsigned int> &ids) void IPARkISP1::queueRequest(const uint32_t frame, const ControlList &controls) { IPAFrameContext &frameContext = context_.frameContexts.alloc(frame); + context_.debugMetadata.enableByControl(controls); for (auto const &a : algorithms()) { Algorithm *algo = static_cast<Algorithm *>(a.get()); @@ -323,25 +334,21 @@ void IPARkISP1::queueRequest(const uint32_t frame, const ControlList &controls) } } -void IPARkISP1::fillParamsBuffer(const uint32_t frame, const uint32_t bufferId) +void IPARkISP1::computeParams(const uint32_t frame, const uint32_t bufferId) { IPAFrameContext &frameContext = context_.frameContexts.get(frame); - rkisp1_params_cfg *params = - reinterpret_cast<rkisp1_params_cfg *>( - mappedBuffers_.at(bufferId).planes()[0].data()); - - /* Prepare parameters buffer. */ - memset(params, 0, sizeof(*params)); + RkISP1Params params(context_.configuration.paramFormat, + mappedBuffers_.at(bufferId).planes()[0]); for (auto const &algo : algorithms()) - algo->prepare(context_, frame, frameContext, params); + algo->prepare(context_, frame, frameContext, ¶ms); - paramsBufferReady.emit(frame); + paramsComputed.emit(frame, params.size()); } -void IPARkISP1::processStatsBuffer(const uint32_t frame, const uint32_t bufferId, - const ControlList &sensorControls) +void IPARkISP1::processStats(const uint32_t frame, const uint32_t bufferId, + const ControlList &sensorControls) { IPAFrameContext &frameContext = context_.frameContexts.get(frame); @@ -357,7 +364,7 @@ void IPARkISP1::processStatsBuffer(const uint32_t frame, const uint32_t bufferId frameContext.sensor.exposure = sensorControls.get(V4L2_CID_EXPOSURE).get<int32_t>(); frameContext.sensor.gain = - camHelper_->gain(sensorControls.get(V4L2_CID_ANALOGUE_GAIN).get<int32_t>()); + context_.camHelper->gain(sensorControls.get(V4L2_CID_ANALOGUE_GAIN).get<int32_t>()); ControlList metadata(controls::controls); @@ -370,6 +377,7 @@ void IPARkISP1::processStatsBuffer(const uint32_t frame, const uint32_t bufferId setControls(frame); + context_.debugMetadata.moveEntries(metadata); metadataReady.emit(frame, metadata); } @@ -394,9 +402,9 @@ void IPARkISP1::updateControls(const IPACameraSensorInfo &sensorInfo, /* Compute the analogue gain limits. */ const ControlInfo &v4l2Gain = sensorControls.find(V4L2_CID_ANALOGUE_GAIN)->second; - float minGain = camHelper_->gain(v4l2Gain.min().get<int32_t>()); - float maxGain = camHelper_->gain(v4l2Gain.max().get<int32_t>()); - float defGain = camHelper_->gain(v4l2Gain.def().get<int32_t>()); + float minGain = context_.camHelper->gain(v4l2Gain.min().get<int32_t>()); + float maxGain = context_.camHelper->gain(v4l2Gain.max().get<int32_t>()); + float defGain = context_.camHelper->gain(v4l2Gain.def().get<int32_t>()); ctrlMap.emplace(std::piecewise_construct, std::forward_as_tuple(&controls::AnalogueGain), std::forward_as_tuple(minGain, maxGain, defGain)); @@ -424,10 +432,11 @@ void IPARkISP1::updateControls(const IPACameraSensorInfo &sensorInfo, frameDurations[i] = frameSize / (sensorInfo.pixelRate / 1000000U); } - ctrlMap[&controls::FrameDurationLimits] = ControlInfo(frameDurations[0], - frameDurations[1], - frameDurations[2]); + /* \todo Move this (and other agc-related controls) to agc */ + context_.ctrlMap[&controls::FrameDurationLimits] = + ControlInfo(frameDurations[0], frameDurations[1], frameDurations[2]); + ctrlMap.insert(context_.ctrlMap.begin(), context_.ctrlMap.end()); *ipaControls = ControlInfoMap(std::move(ctrlMap), controls::controls); } @@ -440,11 +449,17 @@ void IPARkISP1::setControls(unsigned int frame) IPAFrameContext &frameContext = context_.frameContexts.get(frame); uint32_t exposure = frameContext.agc.exposure; - uint32_t gain = camHelper_->gainCode(frameContext.agc.gain); + uint32_t gain = context_.camHelper->gainCode(frameContext.agc.gain); + uint32_t vblank = frameContext.agc.vblank; + + LOG(IPARkISP1, Debug) + << "Set controls for frame " << frame << ": exposure " << exposure + << ", gain " << frameContext.agc.gain << ", vblank " << vblank; ControlList ctrls(sensorControls_); ctrls.set(V4L2_CID_EXPOSURE, static_cast<int32_t>(exposure)); ctrls.set(V4L2_CID_ANALOGUE_GAIN, static_cast<int32_t>(gain)); + ctrls.set(V4L2_CID_VBLANK, static_cast<int32_t>(vblank)); setSensorControls.emit(frame, ctrls); } @@ -459,7 +474,7 @@ extern "C" { const struct IPAModuleInfo ipaModuleInfo = { IPA_MODULE_API_VERSION, 1, - "PipelineHandlerRkISP1", + "rkisp1", "rkisp1", }; diff --git a/src/ipa/rpi/cam_helper/cam_helper.cpp b/src/ipa/rpi/cam_helper/cam_helper.cpp index ddd5e9a4..a78db9c1 100644 --- a/src/ipa/rpi/cam_helper/cam_helper.cpp +++ b/src/ipa/rpi/cam_helper/cam_helper.cpp @@ -2,7 +2,7 @@ /* * Copyright (C) 2019, Raspberry Pi Ltd * - * cam_helper.cpp - helper information for different sensors + * helper information for different sensors */ #include <linux/videodev2.h> @@ -156,17 +156,9 @@ void CamHelper::setCameraMode(const CameraMode &mode) } } -void CamHelper::getDelays(int &exposureDelay, int &gainDelay, - int &vblankDelay, int &hblankDelay) const +void CamHelper::setHwConfig(const Controller::HardwareConfig &hwConfig) { - /* - * These values are correct for many sensors. Other sensors will - * need to over-ride this function. - */ - exposureDelay = 2; - gainDelay = 1; - vblankDelay = 2; - hblankDelay = 2; + hwConfig_ = hwConfig; } bool CamHelper::sensorEmbeddedDataPresent() const @@ -241,7 +233,7 @@ void CamHelper::parseEmbeddedData(Span<const uint8_t> buffer, return; } - deviceStatus.shutterSpeed = parsedDeviceStatus.shutterSpeed; + deviceStatus.exposureTime = parsedDeviceStatus.exposureTime; deviceStatus.analogueGain = parsedDeviceStatus.analogueGain; deviceStatus.frameLength = parsedDeviceStatus.frameLength; deviceStatus.lineLength = parsedDeviceStatus.lineLength; diff --git a/src/ipa/rpi/cam_helper/cam_helper.h b/src/ipa/rpi/cam_helper/cam_helper.h index 58a4b202..4a826690 100644 --- a/src/ipa/rpi/cam_helper/cam_helper.h +++ b/src/ipa/rpi/cam_helper/cam_helper.h @@ -2,7 +2,7 @@ /* * Copyright (C) 2019, Raspberry Pi Ltd * - * cam_helper.h - helper class providing camera information + * helper class providing camera information */ #pragma once @@ -36,11 +36,6 @@ namespace RPiController { * exposure time, and to convert between the sensor's gain codes and actual * gains. * - * A function to return the number of frames of delay between updating exposure, - * analogue gain and vblanking, and for the changes to take effect. For many - * sensors these take the values 2, 1 and 2 respectively, but sensors that are - * different will need to over-ride the default function provided. - * * A function to query if the sensor outputs embedded data that can be parsed. * * A function to return the sensitivity of a given camera mode. @@ -76,6 +71,7 @@ public: CamHelper(std::unique_ptr<MdParser> parser, unsigned int frameIntegrationDiff); virtual ~CamHelper(); void setCameraMode(const CameraMode &mode); + void setHwConfig(const Controller::HardwareConfig &hwConfig); virtual void prepare(libcamera::Span<const uint8_t> buffer, Metadata &metadata); virtual void process(StatisticsPtr &stats, Metadata &metadata); @@ -91,8 +87,6 @@ public: libcamera::utils::Duration lineLengthPckToDuration(uint32_t lineLengthPck) const; virtual uint32_t gainCode(double gain) const = 0; virtual double gain(uint32_t gainCode) const = 0; - virtual void getDelays(int &exposureDelay, int &gainDelay, - int &vblankDelay, int &hblankDelay) const; virtual bool sensorEmbeddedDataPresent() const; virtual double getModeSensitivity(const CameraMode &mode) const; virtual unsigned int hideFramesStartup() const; @@ -108,6 +102,7 @@ protected: std::unique_ptr<MdParser> parser_; CameraMode mode_; + Controller::HardwareConfig hwConfig_; private: /* diff --git a/src/ipa/rpi/cam_helper/cam_helper_imx219.cpp b/src/ipa/rpi/cam_helper/cam_helper_imx219.cpp index c3337ed0..ba01153e 100644 --- a/src/ipa/rpi/cam_helper/cam_helper_imx219.cpp +++ b/src/ipa/rpi/cam_helper/cam_helper_imx219.cpp @@ -2,7 +2,7 @@ /* * Copyright (C) 2019, Raspberry Pi Ltd * - * cam_helper_imx219.cpp - camera helper for imx219 sensor + * camera helper for imx219 sensor */ #include <assert.h> @@ -99,7 +99,7 @@ void CamHelperImx219::populateMetadata(const MdParser::RegisterMap ®isters, deviceStatus.lineLength = lineLengthPckToDuration(registers.at(lineLengthHiReg) * 256 + registers.at(lineLengthLoReg)); - deviceStatus.shutterSpeed = exposure(registers.at(expHiReg) * 256 + registers.at(expLoReg), + deviceStatus.exposureTime = exposure(registers.at(expHiReg) * 256 + registers.at(expLoReg), deviceStatus.lineLength); deviceStatus.analogueGain = gain(registers.at(gainReg)); deviceStatus.frameLength = registers.at(frameLengthHiReg) * 256 + registers.at(frameLengthLoReg); diff --git a/src/ipa/rpi/cam_helper/cam_helper_imx283.cpp b/src/ipa/rpi/cam_helper/cam_helper_imx283.cpp new file mode 100644 index 00000000..efc03193 --- /dev/null +++ b/src/ipa/rpi/cam_helper/cam_helper_imx283.cpp @@ -0,0 +1,61 @@ +/* SPDX-License-Identifier: BSD-2-Clause */ +/* + * Copyright (C) 2024, Raspberry Pi Ltd + * + * cam_helper_Imx283.cpp - camera information for Imx283 sensor + */ + +#include <assert.h> + +#include "cam_helper.h" + +using namespace RPiController; + +class CamHelperImx283 : public CamHelper +{ +public: + CamHelperImx283(); + uint32_t gainCode(double gain) const override; + double gain(uint32_t gainCode) const override; + unsigned int hideFramesModeSwitch() const override; + +private: + /* + * Smallest difference between the frame length and integration time, + * in units of lines. + */ + static constexpr int frameIntegrationDiff = 4; +}; + +/* + * Imx283 doesn't output metadata, so we have to use the delayed controls which + * works by counting frames. + */ + +CamHelperImx283::CamHelperImx283() + : CamHelper({}, frameIntegrationDiff) +{ +} + +uint32_t CamHelperImx283::gainCode(double gain) const +{ + return static_cast<uint32_t>(2048.0 - 2048.0 / gain); +} + +double CamHelperImx283::gain(uint32_t gainCode) const +{ + return static_cast<double>(2048.0 / (2048 - gainCode)); +} + +unsigned int CamHelperImx283::hideFramesModeSwitch() const +{ + /* After a mode switch, we seem to get 1 bad frame. */ + return 1; +} + +static CamHelper *create() +{ + return new CamHelperImx283(); +} + +static RegisterCamHelper reg("imx283", &create); diff --git a/src/ipa/rpi/cam_helper/cam_helper_imx290.cpp b/src/ipa/rpi/cam_helper/cam_helper_imx290.cpp index d98b51cd..c1aa8528 100644 --- a/src/ipa/rpi/cam_helper/cam_helper_imx290.cpp +++ b/src/ipa/rpi/cam_helper/cam_helper_imx290.cpp @@ -2,10 +2,10 @@ /* * Copyright (C) 2021, Raspberry Pi Ltd * - * cam_helper_imx290.cpp - camera helper for imx290 sensor + * camera helper for imx290 sensor */ -#include <math.h> +#include <cmath> #include "cam_helper.h" @@ -17,8 +17,6 @@ public: CamHelperImx290(); uint32_t gainCode(double gain) const override; double gain(uint32_t gainCode) const override; - void getDelays(int &exposureDelay, int &gainDelay, - int &vblankDelay, int &hblankDelay) const override; unsigned int hideFramesStartup() const override; unsigned int hideFramesModeSwitch() const override; @@ -37,22 +35,13 @@ CamHelperImx290::CamHelperImx290() uint32_t CamHelperImx290::gainCode(double gain) const { - int code = 66.6667 * log10(gain); + int code = 66.6667 * std::log10(gain); return std::max(0, std::min(code, 0xf0)); } double CamHelperImx290::gain(uint32_t gainCode) const { - return pow(10, 0.015 * gainCode); -} - -void CamHelperImx290::getDelays(int &exposureDelay, int &gainDelay, - int &vblankDelay, int &hblankDelay) const -{ - exposureDelay = 2; - gainDelay = 2; - vblankDelay = 2; - hblankDelay = 2; + return std::pow(10, 0.015 * gainCode); } unsigned int CamHelperImx290::hideFramesStartup() const @@ -73,3 +62,5 @@ static CamHelper *create() } static RegisterCamHelper reg("imx290", &create); +static RegisterCamHelper reg327("imx327", &create); +static RegisterCamHelper reg462("imx462", &create); diff --git a/src/ipa/rpi/cam_helper/cam_helper_imx296.cpp b/src/ipa/rpi/cam_helper/cam_helper_imx296.cpp index ecb845e7..ac7ee2ea 100644 --- a/src/ipa/rpi/cam_helper/cam_helper_imx296.cpp +++ b/src/ipa/rpi/cam_helper/cam_helper_imx296.cpp @@ -2,7 +2,7 @@ /* * Copyright (C) 2020, Raspberry Pi Ltd * - * cam_helper_imx296.cpp - Camera helper for IMX296 sensor + * Camera helper for IMX296 sensor */ #include <algorithm> @@ -23,8 +23,6 @@ public: double gain(uint32_t gainCode) const override; uint32_t exposureLines(const Duration exposure, const Duration lineLength) const override; Duration exposure(uint32_t exposureLines, const Duration lineLength) const override; - void getDelays(int &exposureDelay, int &gainDelay, - int &vblankDelay, int &hblankDelay) const override; private: static constexpr uint32_t minExposureLines = 1; @@ -66,15 +64,6 @@ Duration CamHelperImx296::exposure(uint32_t exposureLines, return std::max<uint32_t>(minExposureLines, exposureLines) * timePerLine + 14.26us; } -void CamHelperImx296::getDelays(int &exposureDelay, int &gainDelay, - int &vblankDelay, int &hblankDelay) const -{ - exposureDelay = 2; - gainDelay = 2; - vblankDelay = 2; - hblankDelay = 2; -} - static CamHelper *create() { return new CamHelperImx296(); diff --git a/src/ipa/rpi/cam_helper/cam_helper_imx415.cpp b/src/ipa/rpi/cam_helper/cam_helper_imx415.cpp new file mode 100644 index 00000000..c0a09eee --- /dev/null +++ b/src/ipa/rpi/cam_helper/cam_helper_imx415.cpp @@ -0,0 +1,64 @@ +/* SPDX-License-Identifier: BSD-2-Clause */ +/* + * Copyright (C) 2025, Raspberry Pi Ltd + * + * camera helper for imx415 sensor + */ + +#include <cmath> + +#include "cam_helper.h" + +using namespace RPiController; + +class CamHelperImx415 : public CamHelper +{ +public: + CamHelperImx415(); + uint32_t gainCode(double gain) const override; + double gain(uint32_t gainCode) const override; + unsigned int hideFramesStartup() const override; + unsigned int hideFramesModeSwitch() const override; + +private: + /* + * Smallest difference between the frame length and integration time, + * in units of lines. + */ + static constexpr int frameIntegrationDiff = 8; +}; + +CamHelperImx415::CamHelperImx415() + : CamHelper({}, frameIntegrationDiff) +{ +} + +uint32_t CamHelperImx415::gainCode(double gain) const +{ + int code = 66.6667 * std::log10(gain); + return std::max(0, std::min(code, 0xf0)); +} + +double CamHelperImx415::gain(uint32_t gainCode) const +{ + return std::pow(10, 0.015 * gainCode); +} + +unsigned int CamHelperImx415::hideFramesStartup() const +{ + /* On startup, we seem to get 1 bad frame. */ + return 1; +} + +unsigned int CamHelperImx415::hideFramesModeSwitch() const +{ + /* After a mode switch, we seem to get 1 bad frame. */ + return 1; +} + +static CamHelper *create() +{ + return new CamHelperImx415(); +} + +static RegisterCamHelper reg("imx415", &create); diff --git a/src/ipa/rpi/cam_helper/cam_helper_imx477.cpp b/src/ipa/rpi/cam_helper/cam_helper_imx477.cpp index bc769ca7..a72ac67d 100644 --- a/src/ipa/rpi/cam_helper/cam_helper_imx477.cpp +++ b/src/ipa/rpi/cam_helper/cam_helper_imx477.cpp @@ -2,7 +2,7 @@ /* * Copyright (C) 2020, Raspberry Pi Ltd * - * cam_helper_imx477.cpp - camera helper for imx477 sensor + * camera helper for imx477 sensor */ #include <algorithm> @@ -51,8 +51,6 @@ public: void prepare(libcamera::Span<const uint8_t> buffer, Metadata &metadata) override; std::pair<uint32_t, uint32_t> getBlanking(Duration &exposure, Duration minFrameDuration, Duration maxFrameDuration) const override; - void getDelays(int &exposureDelay, int &gainDelay, - int &vblankDelay, int &hblankDelay) const override; bool sensorEmbeddedDataPresent() const override; private: @@ -112,7 +110,7 @@ void CamHelperImx477::prepare(libcamera::Span<const uint8_t> buffer, Metadata &m DeviceStatus parsedDeviceStatus; metadata.get("device.status", parsedDeviceStatus); - parsedDeviceStatus.shutterSpeed = deviceStatus.shutterSpeed; + parsedDeviceStatus.exposureTime = deviceStatus.exposureTime; parsedDeviceStatus.frameLength = deviceStatus.frameLength; metadata.set("device.status", parsedDeviceStatus); @@ -159,15 +157,6 @@ std::pair<uint32_t, uint32_t> CamHelperImx477::getBlanking(Duration &exposure, return { frameLength - mode_.height, hblank }; } -void CamHelperImx477::getDelays(int &exposureDelay, int &gainDelay, - int &vblankDelay, int &hblankDelay) const -{ - exposureDelay = 2; - gainDelay = 2; - vblankDelay = 3; - hblankDelay = 3; -} - bool CamHelperImx477::sensorEmbeddedDataPresent() const { return true; @@ -180,7 +169,7 @@ void CamHelperImx477::populateMetadata(const MdParser::RegisterMap ®isters, deviceStatus.lineLength = lineLengthPckToDuration(registers.at(lineLengthHiReg) * 256 + registers.at(lineLengthLoReg)); - deviceStatus.shutterSpeed = exposure(registers.at(expHiReg) * 256 + registers.at(expLoReg), + deviceStatus.exposureTime = exposure(registers.at(expHiReg) * 256 + registers.at(expLoReg), deviceStatus.lineLength); deviceStatus.analogueGain = gain(registers.at(gainHiReg) * 256 + registers.at(gainLoReg)); deviceStatus.frameLength = registers.at(frameLengthHiReg) * 256 + registers.at(frameLengthLoReg); diff --git a/src/ipa/rpi/cam_helper/cam_helper_imx519.cpp b/src/ipa/rpi/cam_helper/cam_helper_imx519.cpp index c7262aa0..10cbea48 100644 --- a/src/ipa/rpi/cam_helper/cam_helper_imx519.cpp +++ b/src/ipa/rpi/cam_helper/cam_helper_imx519.cpp @@ -3,7 +3,7 @@ * Based on cam_helper_imx477.cpp * Copyright (C) 2020, Raspberry Pi Ltd * - * cam_helper_imx519.cpp - camera helper for imx519 sensor + * camera helper for imx519 sensor * Copyright (C) 2021, Arducam Technology co., Ltd. */ @@ -51,8 +51,6 @@ public: void prepare(libcamera::Span<const uint8_t> buffer, Metadata &metadata) override; std::pair<uint32_t, uint32_t> getBlanking(Duration &exposure, Duration minFrameDuration, Duration maxFrameDuration) const override; - void getDelays(int &exposureDelay, int &gainDelay, - int &vblankDelay, int &hblankDelay) const override; bool sensorEmbeddedDataPresent() const override; private: @@ -112,7 +110,7 @@ void CamHelperImx519::prepare(libcamera::Span<const uint8_t> buffer, Metadata &m DeviceStatus parsedDeviceStatus; metadata.get("device.status", parsedDeviceStatus); - parsedDeviceStatus.shutterSpeed = deviceStatus.shutterSpeed; + parsedDeviceStatus.exposureTime = deviceStatus.exposureTime; parsedDeviceStatus.frameLength = deviceStatus.frameLength; metadata.set("device.status", parsedDeviceStatus); @@ -159,15 +157,6 @@ std::pair<uint32_t, uint32_t> CamHelperImx519::getBlanking(Duration &exposure, return { frameLength - mode_.height, hblank }; } -void CamHelperImx519::getDelays(int &exposureDelay, int &gainDelay, - int &vblankDelay, int &hblankDelay) const -{ - exposureDelay = 2; - gainDelay = 2; - vblankDelay = 3; - hblankDelay = 3; -} - bool CamHelperImx519::sensorEmbeddedDataPresent() const { return true; @@ -180,7 +169,7 @@ void CamHelperImx519::populateMetadata(const MdParser::RegisterMap ®isters, deviceStatus.lineLength = lineLengthPckToDuration(registers.at(lineLengthHiReg) * 256 + registers.at(lineLengthLoReg)); - deviceStatus.shutterSpeed = exposure(registers.at(expHiReg) * 256 + registers.at(expLoReg), + deviceStatus.exposureTime = exposure(registers.at(expHiReg) * 256 + registers.at(expLoReg), deviceStatus.lineLength); deviceStatus.analogueGain = gain(registers.at(gainHiReg) * 256 + registers.at(gainLoReg)); deviceStatus.frameLength = registers.at(frameLengthHiReg) * 256 + registers.at(frameLengthLoReg); diff --git a/src/ipa/rpi/cam_helper/cam_helper_imx708.cpp b/src/ipa/rpi/cam_helper/cam_helper_imx708.cpp index dce39cd5..6150909c 100644 --- a/src/ipa/rpi/cam_helper/cam_helper_imx708.cpp +++ b/src/ipa/rpi/cam_helper/cam_helper_imx708.cpp @@ -2,7 +2,7 @@ /* * Copyright (C) 2022, Raspberry Pi Ltd * - * cam_helper_imx708.cpp - camera helper for imx708 sensor + * camera helper for imx708 sensor */ #include <cmath> @@ -54,8 +54,6 @@ public: void process(StatisticsPtr &stats, Metadata &metadata) override; std::pair<uint32_t, uint32_t> getBlanking(Duration &exposure, Duration minFrameDuration, Duration maxFrameDuration) const override; - void getDelays(int &exposureDelay, int &gainDelay, - int &vblankDelay, int &hblankDelay) const override; bool sensorEmbeddedDataPresent() const override; double getModeSensitivity(const CameraMode &mode) const override; unsigned int hideFramesModeSwitch() const override; @@ -66,7 +64,7 @@ private: * Smallest difference between the frame length and integration time, * in units of lines. */ - static constexpr int frameIntegrationDiff = 22; + static constexpr int frameIntegrationDiff = 48; /* Maximum frame length allowable for long exposure calculations. */ static constexpr int frameLengthMax = 0xffdc; /* Largest long exposure scale factor given as a left shift on the frame length. */ @@ -155,7 +153,7 @@ void CamHelperImx708::prepare(libcamera::Span<const uint8_t> buffer, Metadata &m DeviceStatus parsedDeviceStatus; metadata.get("device.status", parsedDeviceStatus); - parsedDeviceStatus.shutterSpeed = deviceStatus.shutterSpeed; + parsedDeviceStatus.exposureTime = deviceStatus.exposureTime; parsedDeviceStatus.frameLength = deviceStatus.frameLength; metadata.set("device.status", parsedDeviceStatus); @@ -208,15 +206,6 @@ std::pair<uint32_t, uint32_t> CamHelperImx708::getBlanking(Duration &exposure, return { frameLength - mode_.height, hblank }; } -void CamHelperImx708::getDelays(int &exposureDelay, int &gainDelay, - int &vblankDelay, int &hblankDelay) const -{ - exposureDelay = 2; - gainDelay = 2; - vblankDelay = 3; - hblankDelay = 3; -} - bool CamHelperImx708::sensorEmbeddedDataPresent() const { return true; @@ -255,7 +244,7 @@ void CamHelperImx708::populateMetadata(const MdParser::RegisterMap ®isters, deviceStatus.lineLength = lineLengthPckToDuration(registers.at(lineLengthHiReg) * 256 + registers.at(lineLengthLoReg)); - deviceStatus.shutterSpeed = exposure(registers.at(expHiReg) * 256 + registers.at(expLoReg), + deviceStatus.exposureTime = exposure(registers.at(expHiReg) * 256 + registers.at(expLoReg), deviceStatus.lineLength); deviceStatus.analogueGain = gain(registers.at(gainHiReg) * 256 + registers.at(gainLoReg)); deviceStatus.frameLength = registers.at(frameLengthHiReg) * 256 + registers.at(frameLengthLoReg); @@ -269,7 +258,7 @@ bool CamHelperImx708::parsePdafData(const uint8_t *ptr, size_t len, { size_t step = bpp >> 1; /* bytes per PDAF grid entry */ - if (bpp < 10 || bpp > 12 || len < 194 * step || ptr[0] != 0 || ptr[1] >= 0x40) { + if (bpp < 10 || bpp > 14 || len < 194 * step || ptr[0] != 0 || ptr[1] >= 0x40) { LOG(IPARPI, Error) << "PDAF data in unsupported format"; return false; } diff --git a/src/ipa/rpi/cam_helper/cam_helper_ov5647.cpp b/src/ipa/rpi/cam_helper/cam_helper_ov5647.cpp index 5a99083d..40d6b6d7 100644 --- a/src/ipa/rpi/cam_helper/cam_helper_ov5647.cpp +++ b/src/ipa/rpi/cam_helper/cam_helper_ov5647.cpp @@ -2,7 +2,7 @@ /* * Copyright (C) 2019, Raspberry Pi Ltd * - * cam_helper_ov5647.cpp - camera information for ov5647 sensor + * camera information for ov5647 sensor */ #include <assert.h> @@ -17,8 +17,6 @@ public: CamHelperOv5647(); uint32_t gainCode(double gain) const override; double gain(uint32_t gainCode) const override; - void getDelays(int &exposureDelay, int &gainDelay, - int &vblankDelay, int &hblankDelay) const override; unsigned int hideFramesStartup() const override; unsigned int hideFramesModeSwitch() const override; unsigned int mistrustFramesStartup() const override; @@ -52,19 +50,6 @@ double CamHelperOv5647::gain(uint32_t gainCode) const return static_cast<double>(gainCode) / 16.0; } -void CamHelperOv5647::getDelays(int &exposureDelay, int &gainDelay, - int &vblankDelay, int &hblankDelay) const -{ - /* - * We run this sensor in a mode where the gain delay is bumped up to - * 2. It seems to be the only way to make the delays "predictable". - */ - exposureDelay = 2; - gainDelay = 2; - vblankDelay = 2; - hblankDelay = 2; -} - unsigned int CamHelperOv5647::hideFramesStartup() const { /* diff --git a/src/ipa/rpi/cam_helper/cam_helper_ov64a40.cpp b/src/ipa/rpi/cam_helper/cam_helper_ov64a40.cpp new file mode 100644 index 00000000..980495a8 --- /dev/null +++ b/src/ipa/rpi/cam_helper/cam_helper_ov64a40.cpp @@ -0,0 +1,62 @@ +/* SPDX-License-Identifier: BSD-2-Clause */ +/* + * Copyright (C) 2021, Raspberry Pi Ltd + * Copyright (C) 2023, Ideas on Board Oy. + * + * camera information for ov64a40 sensor + */ + +#include <assert.h> + +#include "cam_helper.h" + +using namespace RPiController; + +class CamHelperOv64a40 : public CamHelper +{ +public: + CamHelperOv64a40(); + uint32_t gainCode(double gain) const override; + double gain(uint32_t gainCode) const override; + double getModeSensitivity(const CameraMode &mode) const override; + +private: + /* + * Smallest difference between the frame length and integration time, + * in units of lines. + */ + static constexpr int frameIntegrationDiff = 32; +}; + +CamHelperOv64a40::CamHelperOv64a40() + : CamHelper({}, frameIntegrationDiff) +{ +} + +uint32_t CamHelperOv64a40::gainCode(double gain) const +{ + return static_cast<uint32_t>(gain * 128.0); +} + +double CamHelperOv64a40::gain(uint32_t gainCode) const +{ + return static_cast<double>(gainCode) / 128.0; +} + +double CamHelperOv64a40::getModeSensitivity(const CameraMode &mode) const +{ + if (mode.binX >= 2 && mode.scaleX >= 4) { + return 4.0; + } else if (mode.binX >= 2 && mode.scaleX >= 2) { + return 2.0; + } else { + return 1.0; + } +} + +static CamHelper *create() +{ + return new CamHelperOv64a40(); +} + +static RegisterCamHelper reg("ov64a40", &create); diff --git a/src/ipa/rpi/cam_helper/cam_helper_ov7251.cpp b/src/ipa/rpi/cam_helper/cam_helper_ov7251.cpp new file mode 100644 index 00000000..fc7b999f --- /dev/null +++ b/src/ipa/rpi/cam_helper/cam_helper_ov7251.cpp @@ -0,0 +1,54 @@ +/* SPDX-License-Identifier: BSD-2-Clause */ +/* + * Copyright (C) 2021, Raspberry Pi Ltd + * + * camera information for ov7251 sensor + */ + +#include <assert.h> + +#include "cam_helper.h" + +using namespace RPiController; + +class CamHelperOv7251 : public CamHelper +{ +public: + CamHelperOv7251(); + uint32_t gainCode(double gain) const override; + double gain(uint32_t gainCode) const override; + +private: + /* + * Smallest difference between the frame length and integration time, + * in units of lines. + */ + static constexpr int frameIntegrationDiff = 4; +}; + +/* + * OV7251 doesn't output metadata, so we have to use the "unicam parser" which + * works by counting frames. + */ + +CamHelperOv7251::CamHelperOv7251() + : CamHelper({}, frameIntegrationDiff) +{ +} + +uint32_t CamHelperOv7251::gainCode(double gain) const +{ + return static_cast<uint32_t>(gain * 16.0); +} + +double CamHelperOv7251::gain(uint32_t gainCode) const +{ + return static_cast<double>(gainCode) / 16.0; +} + +static CamHelper *create() +{ + return new CamHelperOv7251(); +} + +static RegisterCamHelper reg("ov7251", &create); diff --git a/src/ipa/rpi/cam_helper/cam_helper_ov9281.cpp b/src/ipa/rpi/cam_helper/cam_helper_ov9281.cpp index 86c5bc4c..e93a4691 100644 --- a/src/ipa/rpi/cam_helper/cam_helper_ov9281.cpp +++ b/src/ipa/rpi/cam_helper/cam_helper_ov9281.cpp @@ -2,7 +2,7 @@ /* * Copyright (C) 2021, Raspberry Pi Ltd * - * cam_helper_ov9281.cpp - camera information for ov9281 sensor + * camera information for ov9281 sensor */ #include <assert.h> @@ -17,15 +17,13 @@ public: CamHelperOv9281(); uint32_t gainCode(double gain) const override; double gain(uint32_t gainCode) const override; - void getDelays(int &exposureDelay, int &gainDelay, - int &vblankDelay, int &hblankDelay) const override; private: /* * Smallest difference between the frame length and integration time, * in units of lines. */ - static constexpr int frameIntegrationDiff = 4; + static constexpr int frameIntegrationDiff = 25; }; /* @@ -48,16 +46,6 @@ double CamHelperOv9281::gain(uint32_t gainCode) const return static_cast<double>(gainCode) / 16.0; } -void CamHelperOv9281::getDelays(int &exposureDelay, int &gainDelay, - int &vblankDelay, int &hblankDelay) const -{ - /* The driver appears to behave as follows: */ - exposureDelay = 2; - gainDelay = 2; - vblankDelay = 2; - hblankDelay = 2; -} - static CamHelper *create() { return new CamHelperOv9281(); diff --git a/src/ipa/rpi/cam_helper/md_parser.h b/src/ipa/rpi/cam_helper/md_parser.h index 77d557aa..227c376c 100644 --- a/src/ipa/rpi/cam_helper/md_parser.h +++ b/src/ipa/rpi/cam_helper/md_parser.h @@ -2,7 +2,7 @@ /* * Copyright (C) 2019, Raspberry Pi Ltd * - * md_parser.h - image sensor metadata parser interface + * image sensor metadata parser interface */ #pragma once diff --git a/src/ipa/rpi/cam_helper/md_parser_smia.cpp b/src/ipa/rpi/cam_helper/md_parser_smia.cpp index 210787ed..c7bdcf94 100644 --- a/src/ipa/rpi/cam_helper/md_parser_smia.cpp +++ b/src/ipa/rpi/cam_helper/md_parser_smia.cpp @@ -2,7 +2,7 @@ /* * Copyright (C) 2019-2021, Raspberry Pi Ltd * - * md_parser_smia.cpp - SMIA specification based embedded data parser + * SMIA specification based embedded data parser */ #include <libcamera/base/log.h> @@ -86,10 +86,13 @@ MdParserSmia::ParseStatus MdParserSmia::findRegs(libcamera::Span<const uint8_t> while (1) { int tag = buffer[currentOffset++]; - if ((bitsPerPixel_ == 10 && - (currentOffset + 1 - currentLineStart) % 5 == 0) || - (bitsPerPixel_ == 12 && - (currentOffset + 1 - currentLineStart) % 3 == 0)) { + /* Non-dummy bytes come in even-sized blocks: skip can only ever follow tag */ + while ((bitsPerPixel_ == 10 && + (currentOffset + 1 - currentLineStart) % 5 == 0) || + (bitsPerPixel_ == 12 && + (currentOffset + 1 - currentLineStart) % 3 == 0) || + (bitsPerPixel_ == 14 && + (currentOffset - currentLineStart) % 7 >= 4)) { if (buffer[currentOffset++] != RegSkip) return BadDummy; } diff --git a/src/ipa/rpi/cam_helper/meson.build b/src/ipa/rpi/cam_helper/meson.build index bdf2db8e..abf02147 100644 --- a/src/ipa/rpi/cam_helper/meson.build +++ b/src/ipa/rpi/cam_helper/meson.build @@ -4,11 +4,15 @@ rpi_ipa_cam_helper_sources = files([ 'cam_helper.cpp', 'cam_helper_ov5647.cpp', 'cam_helper_imx219.cpp', + 'cam_helper_imx283.cpp', 'cam_helper_imx290.cpp', 'cam_helper_imx296.cpp', + 'cam_helper_imx415.cpp', 'cam_helper_imx477.cpp', 'cam_helper_imx519.cpp', 'cam_helper_imx708.cpp', + 'cam_helper_ov64a40.cpp', + 'cam_helper_ov7251.cpp', 'cam_helper_ov9281.cpp', 'md_parser_smia.cpp', ]) diff --git a/src/ipa/rpi/common/ipa_base.cpp b/src/ipa/rpi/common/ipa_base.cpp index f28eb36b..e0a93daa 100644 --- a/src/ipa/rpi/common/ipa_base.cpp +++ b/src/ipa/rpi/common/ipa_base.cpp @@ -2,7 +2,7 @@ /* * Copyright (C) 2019-2023, Raspberry Pi Ltd * - * ipa_base.cpp - Raspberry Pi IPA base class + * Raspberry Pi IPA base class */ #include "ipa_base.h" @@ -24,6 +24,7 @@ #include "controller/ccm_status.h" #include "controller/contrast_algorithm.h" #include "controller/denoise_algorithm.h" +#include "controller/hdr_algorithm.h" #include "controller/lux_status.h" #include "controller/sharpen_algorithm.h" #include "controller/statistics.h" @@ -54,9 +55,19 @@ constexpr Duration controllerMinFrameDuration = 1.0s / 30.0; /* List of controls handled by the Raspberry Pi IPA */ const ControlInfoMap::Map ipaControls{ - { &controls::AeEnable, ControlInfo(false, true) }, - { &controls::ExposureTime, ControlInfo(0, 66666) }, - { &controls::AnalogueGain, ControlInfo(1.0f, 16.0f) }, + /* \todo Move this to the Camera class */ + { &controls::AeEnable, ControlInfo(false, true, true) }, + { &controls::ExposureTimeMode, + ControlInfo(static_cast<int32_t>(controls::ExposureTimeModeAuto), + static_cast<int32_t>(controls::ExposureTimeModeManual), + static_cast<int32_t>(controls::ExposureTimeModeAuto)) }, + { &controls::ExposureTime, + ControlInfo(1, 66666, static_cast<int32_t>(defaultExposureTime.get<std::micro>())) }, + { &controls::AnalogueGainMode, + ControlInfo(static_cast<int32_t>(controls::AnalogueGainModeAuto), + static_cast<int32_t>(controls::AnalogueGainModeManual), + static_cast<int32_t>(controls::AnalogueGainModeAuto)) }, + { &controls::AnalogueGain, ControlInfo(1.0f, 16.0f, 1.0f) }, { &controls::AeMeteringMode, ControlInfo(controls::AeMeteringModeValues) }, { &controls::AeConstraintMode, ControlInfo(controls::AeConstraintModeValues) }, { &controls::AeExposureMode, ControlInfo(controls::AeExposureModeValues) }, @@ -67,10 +78,14 @@ const ControlInfoMap::Map ipaControls{ { &controls::AeFlickerPeriod, ControlInfo(100, 1000000) }, { &controls::Brightness, ControlInfo(-1.0f, 1.0f, 0.0f) }, { &controls::Contrast, ControlInfo(0.0f, 32.0f, 1.0f) }, + { &controls::HdrMode, ControlInfo(controls::HdrModeValues) }, { &controls::Sharpness, ControlInfo(0.0f, 16.0f, 1.0f) }, { &controls::ScalerCrop, ControlInfo(Rectangle{}, Rectangle(65535, 65535, 65535, 65535), Rectangle{}) }, - { &controls::FrameDurationLimits, ControlInfo(INT64_C(33333), INT64_C(120000)) }, - { &controls::draft::NoiseReductionMode, ControlInfo(controls::draft::NoiseReductionModeValues) } + { &controls::FrameDurationLimits, + ControlInfo(INT64_C(33333), INT64_C(120000), + static_cast<int64_t>(defaultMinFrameDuration.get<std::micro>())) }, + { &controls::draft::NoiseReductionMode, ControlInfo(controls::draft::NoiseReductionModeValues) }, + { &controls::rpi::StatsOutputEnable, ControlInfo(false, true, false) }, }; /* IPA controls handled conditionally, if the sensor is not mono */ @@ -78,6 +93,7 @@ const ControlInfoMap::Map ipaColourControls{ { &controls::AwbEnable, ControlInfo(false, true) }, { &controls::AwbMode, ControlInfo(controls::AwbModeValues) }, { &controls::ColourGains, ControlInfo(0.0f, 32.0f) }, + { &controls::ColourTemperature, ControlInfo(100, 100000) }, { &controls::Saturation, ControlInfo(0.0f, 32.0f, 1.0f) }, }; @@ -93,6 +109,13 @@ const ControlInfoMap::Map ipaAfControls{ { &controls::LensPosition, ControlInfo(0.0f, 32.0f, 1.0f) } }; +/* Platform specific controls */ +const std::map<const std::string, ControlInfoMap::Map> platformControls { + { "pisp", { + { &controls::rpi::ScalerCrops, ControlInfo(Rectangle{}, Rectangle(65535, 65535, 65535, 65535), Rectangle{}) } + } }, +}; + } /* namespace */ LOG_DEFINE_CATEGORY(IPARPI) @@ -100,8 +123,9 @@ LOG_DEFINE_CATEGORY(IPARPI) namespace ipa::RPi { IpaBase::IpaBase() - : controller_(), frameLengths_(FrameLengthsQueueSize, 0s), frameCount_(0), - mistrustCount_(0), lastRunTimestamp_(0), firstStart_(true), flickerState_({ 0, 0s }) + : controller_(), frameLengths_(FrameLengthsQueueSize, 0s), statsMetadataOutput_(false), + stitchSwapBuffers_(false), frameCount_(0), mistrustCount_(0), lastRunTimestamp_(0), + firstStart_(true), flickerState_({ 0, 0s }) { } @@ -123,18 +147,8 @@ int32_t IpaBase::init(const IPASettings &settings, const InitParams ¶ms, Ini return -EINVAL; } - /* - * Pass out the sensor config to the pipeline handler in order - * to setup the staggered writer class. - */ - int gainDelay, exposureDelay, vblankDelay, hblankDelay, sensorMetadata; - helper_->getDelays(exposureDelay, gainDelay, vblankDelay, hblankDelay); - sensorMetadata = helper_->sensorEmbeddedDataPresent(); - - result->sensorConfig.gainDelay = gainDelay; - result->sensorConfig.exposureDelay = exposureDelay; - result->sensorConfig.vblankDelay = vblankDelay; - result->sensorConfig.hblankDelay = hblankDelay; + /* Pass out the sensor metadata to the pipeline handler */ + int sensorMetadata = helper_->sensorEmbeddedDataPresent(); result->sensorConfig.sensorMetadata = sensorMetadata; /* Load the tuning file for this sensor. */ @@ -149,12 +163,17 @@ int32_t IpaBase::init(const IPASettings &settings, const InitParams ¶ms, Ini lensPresent_ = params.lensPresent; controller_.initialise(); + helper_->setHwConfig(controller_.getHardwareConfig()); /* Return the controls handled by the IPA */ ControlInfoMap::Map ctrlMap = ipaControls; if (lensPresent_) ctrlMap.merge(ControlInfoMap::Map(ipaAfControls)); + auto platformCtrlsIt = platformControls.find(controller_.getTarget()); + if (platformCtrlsIt != platformControls.end()) + ctrlMap.merge(ControlInfoMap::Map(platformCtrlsIt->second)); + monoSensor_ = params.sensorInfo.cfaPattern == properties::draft::ColorFilterArrangementEnum::MONO; if (!monoSensor_) ctrlMap.merge(ControlInfoMap::Map(ipaColourControls)); @@ -209,7 +228,7 @@ int32_t IpaBase::configure(const IPACameraSensorInfo &sensorInfo, const ConfigPa /* Supply initial values for gain and exposure. */ AgcStatus agcStatus; - agcStatus.shutterTime = defaultExposureTime; + agcStatus.exposureTime = defaultExposureTime; agcStatus.analogueGain = defaultAnalogueGain; applyAGC(&agcStatus, ctrls); @@ -243,15 +262,18 @@ int32_t IpaBase::configure(const IPACameraSensorInfo &sensorInfo, const ConfigPa ControlInfoMap::Map ctrlMap = ipaControls; ctrlMap[&controls::FrameDurationLimits] = ControlInfo(static_cast<int64_t>(mode_.minFrameDuration.get<std::micro>()), - static_cast<int64_t>(mode_.maxFrameDuration.get<std::micro>())); + static_cast<int64_t>(mode_.maxFrameDuration.get<std::micro>()), + static_cast<int64_t>(defaultMinFrameDuration.get<std::micro>())); ctrlMap[&controls::AnalogueGain] = ControlInfo(static_cast<float>(mode_.minAnalogueGain), - static_cast<float>(mode_.maxAnalogueGain)); + static_cast<float>(mode_.maxAnalogueGain), + static_cast<float>(defaultAnalogueGain)); ctrlMap[&controls::ExposureTime] = - ControlInfo(static_cast<int32_t>(mode_.minShutter.get<std::micro>()), - static_cast<int32_t>(mode_.maxShutter.get<std::micro>())); + ControlInfo(static_cast<int32_t>(mode_.minExposureTime.get<std::micro>()), + static_cast<int32_t>(mode_.maxExposureTime.get<std::micro>()), + static_cast<int32_t>(defaultExposureTime.get<std::micro>())); /* Declare colour processing related controls for non-mono sensors. */ if (!monoSensor_) @@ -284,16 +306,18 @@ void IpaBase::start(const ControlList &controls, StartResult *result) /* SwitchMode may supply updated exposure/gain values to use. */ AgcStatus agcStatus; - agcStatus.shutterTime = 0.0s; + agcStatus.exposureTime = 0.0s; agcStatus.analogueGain = 0.0; metadata.get("agc.status", agcStatus); - if (agcStatus.shutterTime && agcStatus.analogueGain) { + if (agcStatus.exposureTime && agcStatus.analogueGain) { ControlList ctrls(sensorCtrls_); applyAGC(&agcStatus, ctrls); result->controls = std::move(ctrls); setCameraTimeoutValue(); } + /* Make a note of this as it tells us the HDR status of the first few frames. */ + hdrStatus_ = agcStatus.hdr; /* * Initialise frame counts, and decide how many frames must be hidden or @@ -397,11 +421,17 @@ void IpaBase::prepareIsp(const PrepareParams ¶ms) * sensor exposure/gain changes. So fetch it from the metadata list * indexed by the IPA cookie returned, and put it in the current frame * metadata. + * + * Note if the HDR mode has changed, as things like tonemaps may need updating. */ AgcStatus agcStatus; + bool hdrChange = false; RPiController::Metadata &delayedMetadata = rpiMetadata_[params.delayContext]; - if (!delayedMetadata.get<AgcStatus>("agc.status", agcStatus)) + if (!delayedMetadata.get<AgcStatus>("agc.status", agcStatus)) { rpiMetadata.set("agc.delayed_status", agcStatus); + hdrChange = agcStatus.hdr.mode != hdrStatus_.mode; + hdrStatus_ = agcStatus.hdr; + } /* * This may overwrite the DeviceStatus using values from the sensor @@ -412,7 +442,7 @@ void IpaBase::prepareIsp(const PrepareParams ¶ms) /* Allow a 10% margin on the comparison below. */ Duration delta = (frameTimestamp - lastRunTimestamp_) * 1.0ns; if (lastRunTimestamp_ && frameCount_ > dropFrameCount_ && - delta < controllerMinFrameDuration * 0.9) { + delta < controllerMinFrameDuration * 0.9 && !hdrChange) { /* * Ensure we merge the previous frame's metadata with the current * frame. This will not overwrite exposure/gain values for the @@ -449,7 +479,7 @@ void IpaBase::prepareIsp(const PrepareParams ¶ms) reportMetadata(ipaContext); /* Ready to push the input buffer into the ISP. */ - prepareIspComplete.emit(params.buffers, false); + prepareIspComplete.emit(params.buffers, stitchSwapBuffers_); } void IpaBase::processStats(const ProcessParams ¶ms) @@ -532,6 +562,33 @@ void IpaBase::setMode(const IPACameraSensorInfo &sensorInfo) mode_.maxLineLength = sensorInfo.maxLineLength * (1.0s / sensorInfo.pixelRate); /* + * Ensure that the maximum pixel processing rate does not exceed the ISP + * hardware capabilities. If it does, try adjusting the minimum line + * length to compensate if possible. + */ + Duration minPixelTime = controller_.getHardwareConfig().minPixelProcessingTime; + Duration pixelTime = mode_.minLineLength / mode_.width; + if (minPixelTime && pixelTime < minPixelTime) { + Duration adjustedLineLength = minPixelTime * mode_.width; + if (adjustedLineLength <= mode_.maxLineLength) { + LOG(IPARPI, Info) + << "Adjusting mode minimum line length from " << mode_.minLineLength + << " to " << adjustedLineLength << " because of ISP constraints."; + mode_.minLineLength = adjustedLineLength; + } else { + LOG(IPARPI, Error) + << "Sensor minimum line length of " << pixelTime * mode_.width + << " (" << 1us / pixelTime << " MPix/s)" + << " is below the minimum allowable ISP limit of " + << adjustedLineLength + << " (" << 1us / minPixelTime << " MPix/s) "; + LOG(IPARPI, Error) + << "THIS WILL CAUSE IMAGE CORRUPTION!!! " + << "Please update the camera sensor driver to allow more horizontal blanking control."; + } + } + + /* * Set the frame length limits for the mode to ensure exposure and * framerate calculations are clipped appropriately. */ @@ -549,16 +606,26 @@ void IpaBase::setMode(const IPACameraSensorInfo &sensorInfo) mode_.sensitivity = helper_->getModeSensitivity(mode_); const ControlInfo &gainCtrl = sensorCtrls_.at(V4L2_CID_ANALOGUE_GAIN); - const ControlInfo &shutterCtrl = sensorCtrls_.at(V4L2_CID_EXPOSURE); + const ControlInfo &exposureTimeCtrl = sensorCtrls_.at(V4L2_CID_EXPOSURE); mode_.minAnalogueGain = helper_->gain(gainCtrl.min().get<int32_t>()); mode_.maxAnalogueGain = helper_->gain(gainCtrl.max().get<int32_t>()); - /* Shutter speed is calculated based on the limits of the frame durations. */ - mode_.minShutter = helper_->exposure(shutterCtrl.min().get<int32_t>(), mode_.minLineLength); - mode_.maxShutter = Duration::max(); - helper_->getBlanking(mode_.maxShutter, - mode_.minFrameDuration, mode_.maxFrameDuration); + /* + * We need to give the helper the min/max frame durations so it can calculate + * the correct exposure limits below. + */ + helper_->setCameraMode(mode_); + + /* + * Exposure time is calculated based on the limits of the frame + * durations. + */ + mode_.minExposureTime = helper_->exposure(exposureTimeCtrl.min().get<int32_t>(), + mode_.minLineLength); + mode_.maxExposureTime = Duration::max(); + helper_->getBlanking(mode_.maxExposureTime, mode_.minFrameDuration, + mode_.maxFrameDuration); } void IpaBase::setCameraTimeoutValue() @@ -643,14 +710,6 @@ static const std::map<int32_t, std::string> AwbModeTable = { { controls::AwbCustom, "custom" }, }; -static const std::map<int32_t, RPiController::DenoiseMode> DenoiseModeTable = { - { controls::draft::NoiseReductionModeOff, RPiController::DenoiseMode::Off }, - { controls::draft::NoiseReductionModeFast, RPiController::DenoiseMode::ColourFast }, - { controls::draft::NoiseReductionModeHighQuality, RPiController::DenoiseMode::ColourHighQuality }, - { controls::draft::NoiseReductionModeMinimal, RPiController::DenoiseMode::ColourOff }, - { controls::draft::NoiseReductionModeZSL, RPiController::DenoiseMode::ColourHighQuality }, -}; - static const std::map<int32_t, RPiController::AfAlgorithm::AfMode> AfModeTable = { { controls::AfModeManual, RPiController::AfAlgorithm::AfModeManual }, { controls::AfModeAuto, RPiController::AfAlgorithm::AfModeAuto }, @@ -669,9 +728,21 @@ static const std::map<int32_t, RPiController::AfAlgorithm::AfPause> AfPauseTable { controls::AfPauseResume, RPiController::AfAlgorithm::AfPauseResume }, }; +static const std::map<int32_t, std::string> HdrModeTable = { + { controls::HdrModeOff, "Off" }, + { controls::HdrModeMultiExposureUnmerged, "MultiExposureUnmerged" }, + { controls::HdrModeMultiExposure, "MultiExposure" }, + { controls::HdrModeSingleExposure, "SingleExposure" }, + { controls::HdrModeNight, "Night" }, +}; + void IpaBase::applyControls(const ControlList &controls) { + using RPiController::AgcAlgorithm; using RPiController::AfAlgorithm; + using RPiController::ContrastAlgorithm; + using RPiController::DenoiseAlgorithm; + using RPiController::HdrAlgorithm; /* Clear the return metadata buffer. */ libcameraMetadata_.clear(); @@ -693,6 +764,42 @@ void IpaBase::applyControls(const ControlList &controls) af->setMode(mode->second); } + /* + * Because some AE controls are mode-specific, handle the AE-related + * mode changes first. + */ + const auto analogueGainMode = controls.get(controls::AnalogueGainMode); + const auto exposureTimeMode = controls.get(controls::ExposureTimeMode); + + if (analogueGainMode || exposureTimeMode) { + RPiController::AgcAlgorithm *agc = dynamic_cast<RPiController::AgcAlgorithm *>( + controller_.getAlgorithm("agc")); + if (agc) { + if (analogueGainMode) { + if (*analogueGainMode == controls::AnalogueGainModeManual) + agc->disableAutoGain(); + else + agc->enableAutoGain(); + + libcameraMetadata_.set(controls::AnalogueGainMode, + *analogueGainMode); + } + + if (exposureTimeMode) { + if (*exposureTimeMode == controls::ExposureTimeModeManual) + agc->disableAutoExposure(); + else + agc->enableAutoExposure(); + + libcameraMetadata_.set(controls::ExposureTimeMode, + *exposureTimeMode); + } + } else { + LOG(IPARPI, Warning) + << "Could not set AnalogueGainMode or ExposureTimeMode - no AGC algorithm"; + } + } + /* Iterate over controls */ for (auto const &ctrl : controls) { LOG(IPARPI, Debug) << "Request ctrl: " @@ -700,23 +807,8 @@ void IpaBase::applyControls(const ControlList &controls) << " = " << ctrl.second.toString(); switch (ctrl.first) { - case controls::AE_ENABLE: { - RPiController::AgcAlgorithm *agc = dynamic_cast<RPiController::AgcAlgorithm *>( - controller_.getAlgorithm("agc")); - if (!agc) { - LOG(IPARPI, Warning) - << "Could not set AE_ENABLE - no AGC algorithm"; - break; - } - - if (ctrl.second.get<bool>() == false) - agc->disableAuto(0); - else - agc->enableAuto(0); - - libcameraMetadata_.set(controls::AeEnable, ctrl.second.get<bool>()); - break; - } + case controls::EXPOSURE_TIME_MODE: + break; /* We already handled this one above */ case controls::EXPOSURE_TIME: { RPiController::AgcAlgorithm *agc = dynamic_cast<RPiController::AgcAlgorithm *>( @@ -727,13 +819,23 @@ void IpaBase::applyControls(const ControlList &controls) break; } + /* + * Ignore manual exposure time when the auto exposure + * algorithm is running. + */ + if (agc->autoExposureEnabled()) + break; + /* The control provides units of microseconds. */ - agc->setFixedShutter(0, ctrl.second.get<int32_t>() * 1.0us); + agc->setFixedExposureTime(0, ctrl.second.get<int32_t>() * 1.0us); libcameraMetadata_.set(controls::ExposureTime, ctrl.second.get<int32_t>()); break; } + case controls::ANALOGUE_GAIN_MODE: + break; /* We already handled this one above */ + case controls::ANALOGUE_GAIN: { RPiController::AgcAlgorithm *agc = dynamic_cast<RPiController::AgcAlgorithm *>( controller_.getAlgorithm("agc")); @@ -743,6 +845,13 @@ void IpaBase::applyControls(const ControlList &controls) break; } + /* + * Ignore manual analogue gain value when the auto gain + * algorithm is running. + */ + if (agc->autoGainEnabled()) + break; + agc->setFixedAnalogueGain(0, ctrl.second.get<float>()); libcameraMetadata_.set(controls::AnalogueGain, @@ -781,7 +890,7 @@ void IpaBase::applyControls(const ControlList &controls) int32_t idx = ctrl.second.get<int32_t>(); if (ConstraintModeTable.count(idx)) { - agc->setConstraintMode(0, ConstraintModeTable.at(idx)); + agc->setConstraintMode(ConstraintModeTable.at(idx)); libcameraMetadata_.set(controls::AeConstraintMode, idx); } else { LOG(IPARPI, Error) << "Constraint mode " << idx @@ -799,9 +908,16 @@ void IpaBase::applyControls(const ControlList &controls) break; } + /* + * Ignore AE_EXPOSURE_MODE if the shutter or the gain + * are in auto mode. + */ + if (agc->autoExposureEnabled() || agc->autoGainEnabled()) + break; + int32_t idx = ctrl.second.get<int32_t>(); if (ExposureModeTable.count(idx)) { - agc->setExposureMode(0, ExposureModeTable.at(idx)); + agc->setExposureMode(ExposureModeTable.at(idx)); libcameraMetadata_.set(controls::AeExposureMode, idx); } else { LOG(IPARPI, Error) << "Exposure mode " << idx @@ -830,6 +946,17 @@ void IpaBase::applyControls(const ControlList &controls) break; } + case controls::AE_ENABLE: { + /* + * The AeEnable control is now just a wrapper that will already have been + * converted to ExposureTimeMode and AnalogueGainMode equivalents, so there + * would be nothing to do here. Nonetheless, "handle" the control so as to + * avoid warnings from the "default:" clause of the switch statement. + */ + + break; + } + case controls::AE_FLICKER_MODE: { RPiController::AgcAlgorithm *agc = dynamic_cast<RPiController::AgcAlgorithm *>( controller_.getAlgorithm("agc")); @@ -844,12 +971,12 @@ void IpaBase::applyControls(const ControlList &controls) switch (mode) { case controls::FlickerOff: - agc->setFlickerPeriod(0, 0us); + agc->setFlickerPeriod(0us); break; case controls::FlickerManual: - agc->setFlickerPeriod(0, flickerState_.manualPeriod); + agc->setFlickerPeriod(flickerState_.manualPeriod); break; @@ -883,7 +1010,7 @@ void IpaBase::applyControls(const ControlList &controls) * first, and the period updated after, or vice versa. */ if (flickerState_.mode == controls::FlickerManual) - agc->setFlickerPeriod(0, flickerState_.manualPeriod); + agc->setFlickerPeriod(flickerState_.manualPeriod); break; } @@ -957,6 +1084,25 @@ void IpaBase::applyControls(const ControlList &controls) break; } + case controls::COLOUR_TEMPERATURE: { + /* Silently ignore this control for a mono sensor. */ + if (monoSensor_) + break; + + auto temperatureK = ctrl.second.get<int32_t>(); + RPiController::AwbAlgorithm *awb = dynamic_cast<RPiController::AwbAlgorithm *>( + controller_.getAlgorithm("awb")); + if (!awb) { + LOG(IPARPI, Warning) + << "Could not set COLOUR_TEMPERATURE - no AWB algorithm"; + break; + } + + awb->setColourTemperature(temperatureK); + /* This metadata will get reported back automatically. */ + break; + } + case controls::BRIGHTNESS: { RPiController::ContrastAlgorithm *contrast = dynamic_cast<RPiController::ContrastAlgorithm *>( controller_.getAlgorithm("contrast")); @@ -1021,6 +1167,7 @@ void IpaBase::applyControls(const ControlList &controls) break; } + case controls::rpi::SCALER_CROPS: case controls::SCALER_CROP: { /* We do nothing with this, but should avoid the warning below. */ break; @@ -1032,36 +1179,11 @@ void IpaBase::applyControls(const ControlList &controls) break; } - case controls::NOISE_REDUCTION_MODE: { - RPiController::DenoiseAlgorithm *sdn = dynamic_cast<RPiController::DenoiseAlgorithm *>( - controller_.getAlgorithm("SDN")); - /* Some platforms may have a combined "denoise" algorithm instead. */ - if (!sdn) - sdn = dynamic_cast<RPiController::DenoiseAlgorithm *>( - controller_.getAlgorithm("denoise")); - if (!sdn) { - LOG(IPARPI, Warning) - << "Could not set NOISE_REDUCTION_MODE - no SDN algorithm"; - break; - } - - int32_t idx = ctrl.second.get<int32_t>(); - auto mode = DenoiseModeTable.find(idx); - if (mode != DenoiseModeTable.end()) { - sdn->setMode(mode->second); - - /* - * \todo If the colour denoise is not going to run due to an - * analysis image resolution or format mismatch, we should - * report the status correctly in the metadata. - */ - libcameraMetadata_.set(controls::draft::NoiseReductionMode, idx); - } else { - LOG(IPARPI, Error) << "Noise reduction mode " << idx - << " not recognised"; - } + case controls::draft::NOISE_REDUCTION_MODE: + /* Handled below in handleControls() */ + libcameraMetadata_.set(controls::draft::NoiseReductionMode, + ctrl.second.get<int32_t>()); break; - } case controls::AF_MODE: break; /* We already handled this one above */ @@ -1168,6 +1290,61 @@ void IpaBase::applyControls(const ControlList &controls) break; } + case controls::HDR_MODE: { + HdrAlgorithm *hdr = dynamic_cast<HdrAlgorithm *>(controller_.getAlgorithm("hdr")); + if (!hdr) { + LOG(IPARPI, Warning) << "No HDR algorithm available"; + break; + } + + auto mode = HdrModeTable.find(ctrl.second.get<int32_t>()); + if (mode == HdrModeTable.end()) { + LOG(IPARPI, Warning) << "Unrecognised HDR mode"; + break; + } + + AgcAlgorithm *agc = dynamic_cast<AgcAlgorithm *>(controller_.getAlgorithm("agc")); + if (!agc) { + LOG(IPARPI, Warning) << "HDR requires an AGC algorithm"; + break; + } + + if (hdr->setMode(mode->second) == 0) { + agc->setActiveChannels(hdr->getChannels()); + + /* We also disable adpative contrast enhancement if HDR is running. */ + ContrastAlgorithm *contrast = + dynamic_cast<ContrastAlgorithm *>(controller_.getAlgorithm("contrast")); + if (contrast) { + if (mode->second == "Off") + contrast->restoreCe(); + else + contrast->enableCe(false); + } + + DenoiseAlgorithm *denoise = + dynamic_cast<DenoiseAlgorithm *>(controller_.getAlgorithm("denoise")); + if (denoise) { + /* \todo - make the HDR mode say what denoise it wants? */ + if (mode->second == "Night") + denoise->setConfig("night"); + else if (mode->second == "SingleExposure") + denoise->setConfig("hdr"); + /* MultiExposure doesn't need extra extra denoise. */ + else + denoise->setConfig("normal"); + } + } else + LOG(IPARPI, Warning) + << "HDR mode " << mode->second << " not supported"; + + break; + } + + case controls::rpi::STATS_OUTPUT_ENABLE: + statsMetadataOutput_ = ctrl.second.get<bool>(); + break; + default: LOG(IPARPI, Warning) << "Ctrl " << controls::controls.at(ctrl.first)->name() @@ -1190,7 +1367,7 @@ void IpaBase::fillDeviceStatus(const ControlList &sensorControls, unsigned int i int32_t hblank = sensorControls.get(V4L2_CID_HBLANK).get<int32_t>(); deviceStatus.lineLength = helper_->hblankToLineLength(hblank); - deviceStatus.shutterSpeed = helper_->exposure(exposureLines, deviceStatus.lineLength); + deviceStatus.exposureTime = helper_->exposure(exposureLines, deviceStatus.lineLength); deviceStatus.analogueGain = helper_->gain(gainCode); deviceStatus.frameLength = mode_.height + vblank; @@ -1217,7 +1394,7 @@ void IpaBase::reportMetadata(unsigned int ipaContext) DeviceStatus *deviceStatus = rpiMetadata.getLocked<DeviceStatus>("device.status"); if (deviceStatus) { libcameraMetadata_.set(controls::ExposureTime, - deviceStatus->shutterSpeed.get<std::micro>()); + deviceStatus->exposureTime.get<std::micro>()); libcameraMetadata_.set(controls::AnalogueGain, deviceStatus->analogueGain); libcameraMetadata_.set(controls::FrameDuration, helper_->exposure(deviceStatus->frameLength, deviceStatus->lineLength).get<std::micro>()); @@ -1228,9 +1405,19 @@ void IpaBase::reportMetadata(unsigned int ipaContext) } AgcPrepareStatus *agcPrepareStatus = rpiMetadata.getLocked<AgcPrepareStatus>("agc.prepare_status"); - if (agcPrepareStatus) { - libcameraMetadata_.set(controls::AeLocked, agcPrepareStatus->locked); + if (agcPrepareStatus) libcameraMetadata_.set(controls::DigitalGain, agcPrepareStatus->digitalGain); + + RPiController::AgcAlgorithm *agc = dynamic_cast<RPiController::AgcAlgorithm *>( + controller_.getAlgorithm("agc")); + if (agc) { + if (!agc->autoExposureEnabled() && !agc->autoGainEnabled()) + libcameraMetadata_.set(controls::AeState, controls::AeStateIdle); + else if (agcPrepareStatus) + libcameraMetadata_.set(controls::AeState, + agcPrepareStatus->locked + ? controls::AeStateConverged + : controls::AeStateSearching); } LuxStatus *luxStatus = rpiMetadata.getLocked<LuxStatus>("lux.status"); @@ -1315,6 +1502,35 @@ void IpaBase::reportMetadata(unsigned int ipaContext) libcameraMetadata_.set(controls::AfPauseState, p); } + /* + * THe HDR algorithm sets the HDR channel into the agc.status at the time that those + * AGC parameters were calculated several frames ago, so it comes back to us now in + * the delayed_status. If this frame is too soon after a mode switch for the + * delayed_status to be available, we use the HDR status that came out of the + * switchMode call. + */ + const AgcStatus *agcStatus = rpiMetadata.getLocked<AgcStatus>("agc.delayed_status"); + const HdrStatus &hdrStatus = agcStatus ? agcStatus->hdr : hdrStatus_; + if (!hdrStatus.mode.empty() && hdrStatus.mode != "Off") { + int32_t hdrMode = controls::HdrModeOff; + for (auto const &[mode, name] : HdrModeTable) { + if (hdrStatus.mode == name) { + hdrMode = mode; + break; + } + } + libcameraMetadata_.set(controls::HdrMode, hdrMode); + + if (hdrStatus.channel == "short") + libcameraMetadata_.set(controls::HdrChannel, controls::HdrChannelShort); + else if (hdrStatus.channel == "long") + libcameraMetadata_.set(controls::HdrChannel, controls::HdrChannelLong); + else if (hdrStatus.channel == "medium") + libcameraMetadata_.set(controls::HdrChannel, controls::HdrChannelMedium); + else + libcameraMetadata_.set(controls::HdrChannel, controls::HdrChannelNone); + } + metadataReady.emit(libcameraMetadata_); } @@ -1339,15 +1555,15 @@ void IpaBase::applyFrameDurations(Duration minFrameDuration, Duration maxFrameDu /* * Calculate the maximum exposure time possible for the AGC to use. - * getBlanking() will update maxShutter with the largest exposure + * getBlanking() will update maxExposureTime with the largest exposure * value possible. */ - Duration maxShutter = Duration::max(); - helper_->getBlanking(maxShutter, minFrameDuration_, maxFrameDuration_); + Duration maxExposureTime = Duration::max(); + helper_->getBlanking(maxExposureTime, minFrameDuration_, maxFrameDuration_); RPiController::AgcAlgorithm *agc = dynamic_cast<RPiController::AgcAlgorithm *>( controller_.getAlgorithm("agc")); - agc->setMaxShutter(maxShutter); + agc->setMaxExposureTime(maxExposureTime); } void IpaBase::applyAGC(const struct AgcStatus *agcStatus, ControlList &ctrls) @@ -1364,14 +1580,14 @@ void IpaBase::applyAGC(const struct AgcStatus *agcStatus, ControlList &ctrls) gainCode = std::clamp<int32_t>(gainCode, minGainCode, maxGainCode); /* getBlanking might clip exposure time to the fps limits. */ - Duration exposure = agcStatus->shutterTime; + Duration exposure = agcStatus->exposureTime; auto [vblank, hblank] = helper_->getBlanking(exposure, minFrameDuration_, maxFrameDuration_); int32_t exposureLines = helper_->exposureLines(exposure, helper_->hblankToLineLength(hblank)); LOG(IPARPI, Debug) << "Applying AGC Exposure: " << exposure - << " (Shutter lines: " << exposureLines << ", AGC requested " - << agcStatus->shutterTime << ") Gain: " + << " (Exposure lines: " << exposureLines << ", AGC requested " + << agcStatus->exposureTime << ") Gain: " << agcStatus->analogueGain << " (Gain Code: " << gainCode << ")"; diff --git a/src/ipa/rpi/common/ipa_base.h b/src/ipa/rpi/common/ipa_base.h index eaa9f711..1a811beb 100644 --- a/src/ipa/rpi/common/ipa_base.h +++ b/src/ipa/rpi/common/ipa_base.h @@ -2,7 +2,7 @@ /* * Copyright (C) 2023, Raspberry Pi Ltd * - * ipa_base.h - Raspberry Pi IPA base class + * Raspberry Pi IPA base class */ #pragma once @@ -22,6 +22,7 @@ #include "controller/agc_status.h" #include "controller/camera_mode.h" #include "controller/controller.h" +#include "controller/hdr_status.h" #include "controller/metadata.h" namespace libcamera { @@ -48,6 +49,11 @@ public: void processStats(const ProcessParams ¶ms) override; protected: + bool monoSensor() const + { + return monoSensor_; + } + /* Raspberry Pi controller specific defines. */ std::unique_ptr<RPiController::CamHelper> helper_; RPiController::Controller controller_; @@ -61,6 +67,14 @@ protected: /* Track the frame length times over FrameLengthsQueueSize frames. */ std::deque<utils::Duration> frameLengths_; utils::Duration lastTimeout_; + ControlList libcameraMetadata_; + bool statsMetadataOutput_; + + /* Remember the HDR status after a mode switch. */ + HdrStatus hdrStatus_; + + /* Whether the stitch block (if available) needs to swap buffers. */ + bool stitchSwapBuffers_; private: /* Number of metadata objects available in the context list. */ @@ -89,7 +103,6 @@ private: bool lensPresent_; bool monoSensor_; - ControlList libcameraMetadata_; std::array<RPiController::Metadata, numMetadataContexts> rpiMetadata_; diff --git a/src/ipa/rpi/controller/af_status.h b/src/ipa/rpi/controller/af_status.h index 92c08812..c1487cc4 100644 --- a/src/ipa/rpi/controller/af_status.h +++ b/src/ipa/rpi/controller/af_status.h @@ -2,7 +2,7 @@ /* * Copyright (C) 2022, Raspberry Pi Ltd * - * af_status.h - AF control algorithm status + * AF control algorithm status */ #pragma once diff --git a/src/ipa/rpi/controller/agc_algorithm.h b/src/ipa/rpi/controller/agc_algorithm.h index b8986560..fdaa10e6 100644 --- a/src/ipa/rpi/controller/agc_algorithm.h +++ b/src/ipa/rpi/controller/agc_algorithm.h @@ -2,7 +2,7 @@ /* * Copyright (C) 2019, Raspberry Pi Ltd * - * agc_algorithm.h - AGC/AEC control algorithm interface + * AGC/AEC control algorithm interface */ #pragma once @@ -22,17 +22,20 @@ public: virtual unsigned int getConvergenceFrames() const = 0; virtual std::vector<double> const &getWeights() const = 0; virtual void setEv(unsigned int channel, double ev) = 0; - virtual void setFlickerPeriod(unsigned int channel, - libcamera::utils::Duration flickerPeriod) = 0; - virtual void setFixedShutter(unsigned int channel, - libcamera::utils::Duration fixedShutter) = 0; - virtual void setMaxShutter(libcamera::utils::Duration maxShutter) = 0; + virtual void setFlickerPeriod(libcamera::utils::Duration flickerPeriod) = 0; + virtual void setFixedExposureTime(unsigned int channel, + libcamera::utils::Duration fixedExposureTime) = 0; + virtual void setMaxExposureTime(libcamera::utils::Duration maxExposureTime) = 0; virtual void setFixedAnalogueGain(unsigned int channel, double fixedAnalogueGain) = 0; virtual void setMeteringMode(std::string const &meteringModeName) = 0; - virtual void setExposureMode(unsigned int channel, std::string const &exposureModeName) = 0; - virtual void setConstraintMode(unsigned int channel, std::string const &contraintModeName) = 0; - virtual void enableAuto(unsigned int channel) = 0; - virtual void disableAuto(unsigned int channel) = 0; + virtual void setExposureMode(std::string const &exposureModeName) = 0; + virtual void setConstraintMode(std::string const &contraintModeName) = 0; + virtual void enableAutoExposure() = 0; + virtual void disableAutoExposure() = 0; + virtual bool autoExposureEnabled() const = 0; + virtual void enableAutoGain() = 0; + virtual void disableAutoGain() = 0; + virtual bool autoGainEnabled() const = 0; virtual void setActiveChannels(const std::vector<unsigned int> &activeChannels) = 0; }; diff --git a/src/ipa/rpi/controller/agc_status.h b/src/ipa/rpi/controller/agc_status.h index 68f89958..9308b156 100644 --- a/src/ipa/rpi/controller/agc_status.h +++ b/src/ipa/rpi/controller/agc_status.h @@ -2,7 +2,7 @@ /* * Copyright (C) 2019, Raspberry Pi Ltd * - * agc_status.h - AGC/AEC control algorithm status + * AGC/AEC control algorithm status */ #pragma once @@ -28,7 +28,7 @@ struct AgcStatus { libcamera::utils::Duration totalExposureValue; /* value for all exposure and gain for this image */ libcamera::utils::Duration targetExposureValue; /* (unfiltered) target total exposure AGC is aiming for */ - libcamera::utils::Duration shutterTime; + libcamera::utils::Duration exposureTime; double analogueGain; std::string exposureMode; std::string constraintMode; @@ -36,7 +36,7 @@ struct AgcStatus { double ev; libcamera::utils::Duration flickerPeriod; int floatingRegionEnable; - libcamera::utils::Duration fixedShutter; + libcamera::utils::Duration fixedExposureTime; double fixedAnalogueGain; unsigned int channel; HdrStatus hdr; diff --git a/src/ipa/rpi/controller/algorithm.cpp b/src/ipa/rpi/controller/algorithm.cpp index a957fde5..beed47a1 100644 --- a/src/ipa/rpi/controller/algorithm.cpp +++ b/src/ipa/rpi/controller/algorithm.cpp @@ -2,7 +2,7 @@ /* * Copyright (C) 2019, Raspberry Pi Ltd * - * algorithm.cpp - ISP control algorithms + * ISP control algorithms */ #include "algorithm.h" diff --git a/src/ipa/rpi/controller/algorithm.h b/src/ipa/rpi/controller/algorithm.h index 4aa814eb..1971bfdc 100644 --- a/src/ipa/rpi/controller/algorithm.h +++ b/src/ipa/rpi/controller/algorithm.h @@ -2,7 +2,7 @@ /* * Copyright (C) 2019, Raspberry Pi Ltd * - * algorithm.h - ISP control algorithm interface + * ISP control algorithm interface */ #pragma once diff --git a/src/ipa/rpi/controller/alsc_status.h b/src/ipa/rpi/controller/alsc_status.h index 49a9f4a0..329e8a37 100644 --- a/src/ipa/rpi/controller/alsc_status.h +++ b/src/ipa/rpi/controller/alsc_status.h @@ -2,7 +2,7 @@ /* * Copyright (C) 2019, Raspberry Pi Ltd * - * alsc_status.h - ALSC (auto lens shading correction) control algorithm status + * ALSC (auto lens shading correction) control algorithm status */ #pragma once diff --git a/src/ipa/rpi/controller/awb_algorithm.h b/src/ipa/rpi/controller/awb_algorithm.h index 8462c4db..d941ed4e 100644 --- a/src/ipa/rpi/controller/awb_algorithm.h +++ b/src/ipa/rpi/controller/awb_algorithm.h @@ -2,7 +2,7 @@ /* * Copyright (C) 2019, Raspberry Pi Ltd * - * awb_algorithm.h - AWB control algorithm interface + * AWB control algorithm interface */ #pragma once @@ -16,8 +16,10 @@ public: AwbAlgorithm(Controller *controller) : Algorithm(controller) {} /* An AWB algorithm must provide the following: */ virtual unsigned int getConvergenceFrames() const = 0; + virtual void initialValues(double &gainR, double &gainB) = 0; virtual void setMode(std::string const &modeName) = 0; virtual void setManualGains(double manualR, double manualB) = 0; + virtual void setColourTemperature(double temperatureK) = 0; virtual void enableAuto() = 0; virtual void disableAuto() = 0; }; diff --git a/src/ipa/rpi/controller/awb_status.h b/src/ipa/rpi/controller/awb_status.h index dd5a79e3..125df1a0 100644 --- a/src/ipa/rpi/controller/awb_status.h +++ b/src/ipa/rpi/controller/awb_status.h @@ -2,7 +2,7 @@ /* * Copyright (C) 2019, Raspberry Pi Ltd * - * awb_status.h - AWB control algorithm status + * AWB control algorithm status */ #pragma once diff --git a/src/ipa/rpi/controller/black_level_algorithm.h b/src/ipa/rpi/controller/black_level_algorithm.h new file mode 100644 index 00000000..ce044e59 --- /dev/null +++ b/src/ipa/rpi/controller/black_level_algorithm.h @@ -0,0 +1,23 @@ +/* SPDX-License-Identifier: BSD-2-Clause */ +/* + * Copyright (C) 2023, Raspberry Pi Ltd + * + * black level control algorithm interface + */ +#pragma once + +#include "algorithm.h" + +namespace RPiController { + +class BlackLevelAlgorithm : public Algorithm +{ +public: + BlackLevelAlgorithm(Controller *controller) + : Algorithm(controller) {} + /* A black level algorithm must provide the following: */ + virtual void initialValues(uint16_t &blackLevelR, uint16_t &blackLevelG, + uint16_t &blackLevelB) = 0; +}; + +} /* namespace RPiController */ diff --git a/src/ipa/rpi/controller/black_level_status.h b/src/ipa/rpi/controller/black_level_status.h index fd5e4ccb..57a0705a 100644 --- a/src/ipa/rpi/controller/black_level_status.h +++ b/src/ipa/rpi/controller/black_level_status.h @@ -2,7 +2,7 @@ /* * Copyright (C) 2019, Raspberry Pi Ltd * - * black_level_status.h - black level control algorithm status + * black level control algorithm status */ #pragma once diff --git a/src/ipa/rpi/controller/cac_status.h b/src/ipa/rpi/controller/cac_status.h index 475d4c5c..adffce41 100644 --- a/src/ipa/rpi/controller/cac_status.h +++ b/src/ipa/rpi/controller/cac_status.h @@ -6,8 +6,6 @@ */ #pragma once -#include "pwl.h" - struct CacStatus { std::vector<double> lutRx; std::vector<double> lutRy; diff --git a/src/ipa/rpi/controller/camera_mode.h b/src/ipa/rpi/controller/camera_mode.h index 63b11778..61162b32 100644 --- a/src/ipa/rpi/controller/camera_mode.h +++ b/src/ipa/rpi/controller/camera_mode.h @@ -2,7 +2,7 @@ /* * Copyright (C) 2019-2020, Raspberry Pi Ltd * - * camera_mode.h - description of a particular operating mode of a sensor + * description of a particular operating mode of a sensor */ #pragma once @@ -50,9 +50,9 @@ struct CameraMode { double sensitivity; /* pixel clock rate */ uint64_t pixelRate; - /* Mode specific shutter speed limits */ - libcamera::utils::Duration minShutter; - libcamera::utils::Duration maxShutter; + /* Mode specific exposure time limits */ + libcamera::utils::Duration minExposureTime; + libcamera::utils::Duration maxExposureTime; /* Mode specific analogue gain limits */ double minAnalogueGain; double maxAnalogueGain; diff --git a/src/ipa/rpi/controller/ccm_algorithm.h b/src/ipa/rpi/controller/ccm_algorithm.h index e2c4d771..6678ba75 100644 --- a/src/ipa/rpi/controller/ccm_algorithm.h +++ b/src/ipa/rpi/controller/ccm_algorithm.h @@ -2,7 +2,7 @@ /* * Copyright (C) 2019, Raspberry Pi Ltd * - * ccm_algorithm.h - CCM (colour correction matrix) control algorithm interface + * CCM (colour correction matrix) control algorithm interface */ #pragma once diff --git a/src/ipa/rpi/controller/ccm_status.h b/src/ipa/rpi/controller/ccm_status.h index 5e28ee7c..c81bcd42 100644 --- a/src/ipa/rpi/controller/ccm_status.h +++ b/src/ipa/rpi/controller/ccm_status.h @@ -2,7 +2,7 @@ /* * Copyright (C) 2019, Raspberry Pi Ltd * - * ccm_status.h - CCM (colour correction matrix) control algorithm status + * CCM (colour correction matrix) control algorithm status */ #pragma once diff --git a/src/ipa/rpi/controller/contrast_algorithm.h b/src/ipa/rpi/controller/contrast_algorithm.h index 895b36b0..2e983350 100644 --- a/src/ipa/rpi/controller/contrast_algorithm.h +++ b/src/ipa/rpi/controller/contrast_algorithm.h @@ -2,7 +2,7 @@ /* * Copyright (C) 2019, Raspberry Pi Ltd * - * contrast_algorithm.h - contrast (gamma) control algorithm interface + * contrast (gamma) control algorithm interface */ #pragma once diff --git a/src/ipa/rpi/controller/contrast_status.h b/src/ipa/rpi/controller/contrast_status.h index fb9fe4ba..1f175872 100644 --- a/src/ipa/rpi/controller/contrast_status.h +++ b/src/ipa/rpi/controller/contrast_status.h @@ -2,11 +2,11 @@ /* * Copyright (C) 2019, Raspberry Pi Ltd * - * contrast_status.h - contrast (gamma) control algorithm status + * contrast (gamma) control algorithm status */ #pragma once -#include "pwl.h" +#include "libipa/pwl.h" /* * The "contrast" algorithm creates a gamma curve, optionally doing a little bit @@ -14,7 +14,7 @@ */ struct ContrastStatus { - RPiController::Pwl gammaCurve; + libcamera::ipa::Pwl gammaCurve; double brightness; double contrast; }; diff --git a/src/ipa/rpi/controller/controller.cpp b/src/ipa/rpi/controller/controller.cpp index e62becd8..651fff63 100644 --- a/src/ipa/rpi/controller/controller.cpp +++ b/src/ipa/rpi/controller/controller.cpp @@ -2,7 +2,7 @@ /* * Copyright (C) 2019, Raspberry Pi Ltd * - * controller.cpp - ISP controller + * ISP controller */ #include <assert.h> @@ -17,6 +17,7 @@ using namespace RPiController; using namespace libcamera; +using namespace std::literals::chrono_literals; LOG_DEFINE_CATEGORY(RPiController) @@ -37,6 +38,8 @@ static const std::map<std::string, Controller::HardwareConfig> HardwareConfigMap .numGammaPoints = 33, .pipelineWidth = 13, .statsInline = false, + .minPixelProcessingTime = 0s, + .dataBufferStrided = true, } }, { @@ -51,6 +54,25 @@ static const std::map<std::string, Controller::HardwareConfig> HardwareConfigMap .numGammaPoints = 64, .pipelineWidth = 16, .statsInline = true, + + /* + * The constraint below is on the rate of pixels going + * from CSI2 peripheral to ISP-FE (400Mpix/s, plus tiny + * overheads per scanline, for which 380Mpix/s is a + * conservative bound). + * + * There is a 64kbit data FIFO before the bottleneck, + * which means that in all reasonable cases the + * constraint applies at a timescale >= 1 scanline, so + * adding horizontal blanking can prevent loss. + * + * If the backlog were to grow beyond 64kbit during a + * single scanline, there could still be loss. This + * could happen using 4 lanes at 1.5Gbps at 10bpp with + * frames wider than ~16,000 pixels. + */ + .minPixelProcessingTime = 1.0us / 380, + .dataBufferStrided = false, } }, }; diff --git a/src/ipa/rpi/controller/controller.h b/src/ipa/rpi/controller/controller.h index 6e5f5952..fdb46557 100644 --- a/src/ipa/rpi/controller/controller.h +++ b/src/ipa/rpi/controller/controller.h @@ -2,7 +2,7 @@ /* * Copyright (C) 2019, Raspberry Pi Ltd * - * controller.h - ISP controller interface + * ISP controller interface */ #pragma once @@ -15,6 +15,7 @@ #include <vector> #include <string> +#include <libcamera/base/utils.h> #include "libcamera/internal/yaml_parser.h" #include "camera_mode.h" @@ -47,6 +48,8 @@ public: unsigned int numGammaPoints; unsigned int pipelineWidth; bool statsInline; + libcamera::utils::Duration minPixelProcessingTime; + bool dataBufferStrided; }; Controller(); diff --git a/src/ipa/rpi/controller/denoise_algorithm.h b/src/ipa/rpi/controller/denoise_algorithm.h index 444cbc25..b9a2a33c 100644 --- a/src/ipa/rpi/controller/denoise_algorithm.h +++ b/src/ipa/rpi/controller/denoise_algorithm.h @@ -2,7 +2,7 @@ /* * Copyright (C) 2021, Raspberry Pi Ltd * - * denoise.h - Denoise control algorithm interface + * Denoise control algorithm interface */ #pragma once diff --git a/src/ipa/rpi/controller/denoise_status.h b/src/ipa/rpi/controller/denoise_status.h index 4d2bd291..eead6086 100644 --- a/src/ipa/rpi/controller/denoise_status.h +++ b/src/ipa/rpi/controller/denoise_status.h @@ -2,7 +2,7 @@ /* * Copyright (C) 2019-2021, Raspberry Pi Ltd * - * denoise_status.h - Denoise control algorithm status + * Denoise control algorithm status */ #pragma once diff --git a/src/ipa/rpi/controller/device_status.cpp b/src/ipa/rpi/controller/device_status.cpp index c907efdd..1695764d 100644 --- a/src/ipa/rpi/controller/device_status.cpp +++ b/src/ipa/rpi/controller/device_status.cpp @@ -2,7 +2,7 @@ /* * Copyright (C) 2021, Raspberry Pi Ltd * - * device_status.cpp - device (image sensor) status + * device (image sensor) status */ #include "device_status.h" @@ -10,7 +10,7 @@ using namespace libcamera; /* for the Duration operator<< overload */ std::ostream &operator<<(std::ostream &out, const DeviceStatus &d) { - out << "Exposure: " << d.shutterSpeed + out << "Exposure time: " << d.exposureTime << " Frame length: " << d.frameLength << " Line length: " << d.lineLength << " Gain: " << d.analogueGain; diff --git a/src/ipa/rpi/controller/device_status.h b/src/ipa/rpi/controller/device_status.h index c45db749..b1792035 100644 --- a/src/ipa/rpi/controller/device_status.h +++ b/src/ipa/rpi/controller/device_status.h @@ -2,7 +2,7 @@ /* * Copyright (C) 2019-2021, Raspberry Pi Ltd * - * device_status.h - device (image sensor) status + * device (image sensor) status */ #pragma once @@ -12,21 +12,21 @@ #include <libcamera/base/utils.h> /* - * Definition of "device metadata" which stores things like shutter time and + * Definition of "device metadata" which stores things like exposure time and * analogue gain that downstream control algorithms will want to know. */ struct DeviceStatus { DeviceStatus() - : shutterSpeed(std::chrono::seconds(0)), frameLength(0), + : exposureTime(std::chrono::seconds(0)), frameLength(0), lineLength(std::chrono::seconds(0)), analogueGain(0.0) { } friend std::ostream &operator<<(std::ostream &out, const DeviceStatus &d); - /* time shutter is open */ - libcamera::utils::Duration shutterSpeed; + /* time the image is exposed */ + libcamera::utils::Duration exposureTime; /* frame length given in number of lines */ uint32_t frameLength; /* line length for the current frame */ diff --git a/src/ipa/rpi/controller/dpc_status.h b/src/ipa/rpi/controller/dpc_status.h index 46d0cf34..9f30d5d9 100644 --- a/src/ipa/rpi/controller/dpc_status.h +++ b/src/ipa/rpi/controller/dpc_status.h @@ -2,7 +2,7 @@ /* * Copyright (C) 2019, Raspberry Pi Ltd * - * dpc_status.h - DPC (defective pixel correction) control algorithm status + * DPC (defective pixel correction) control algorithm status */ #pragma once diff --git a/src/ipa/rpi/controller/geq_status.h b/src/ipa/rpi/controller/geq_status.h index 2d749fc9..cb107a48 100644 --- a/src/ipa/rpi/controller/geq_status.h +++ b/src/ipa/rpi/controller/geq_status.h @@ -2,7 +2,7 @@ /* * Copyright (C) 2019, Raspberry Pi Ltd * - * geq_status.h - GEQ (green equalisation) control algorithm status + * GEQ (green equalisation) control algorithm status */ #pragma once diff --git a/src/ipa/rpi/controller/hdr_algorithm.h b/src/ipa/rpi/controller/hdr_algorithm.h index f622e099..b889d8fd 100644 --- a/src/ipa/rpi/controller/hdr_algorithm.h +++ b/src/ipa/rpi/controller/hdr_algorithm.h @@ -2,7 +2,7 @@ /* * Copyright (C) 2023, Raspberry Pi Ltd * - * hdr_algorithm.h - HDR control algorithm interface + * HDR control algorithm interface */ #pragma once diff --git a/src/ipa/rpi/controller/hdr_status.h b/src/ipa/rpi/controller/hdr_status.h index 24b1a935..a4955778 100644 --- a/src/ipa/rpi/controller/hdr_status.h +++ b/src/ipa/rpi/controller/hdr_status.h @@ -2,7 +2,7 @@ /* * Copyright (C) 2023 Raspberry Pi Ltd * - * hdr_status.h - HDR control algorithm status + * HDR control algorithm status */ #pragma once diff --git a/src/ipa/rpi/controller/histogram.cpp b/src/ipa/rpi/controller/histogram.cpp index 0a27ba2c..13089839 100644 --- a/src/ipa/rpi/controller/histogram.cpp +++ b/src/ipa/rpi/controller/histogram.cpp @@ -2,9 +2,9 @@ /* * Copyright (C) 2019, Raspberry Pi Ltd * - * histogram.cpp - histogram calculations + * histogram calculations */ -#include <math.h> +#include <cmath> #include <stdio.h> #include "histogram.h" @@ -47,23 +47,29 @@ double Histogram::quantile(double q, int first, int last) const double Histogram::interBinMean(double binLo, double binHi) const { - assert(binHi > binLo); + assert(binHi >= binLo); double sumBinFreq = 0, cumulFreq = 0; - for (double binNext = floor(binLo) + 1.0; binNext <= ceil(binHi); + for (double binNext = std::floor(binLo) + 1.0; binNext <= std::ceil(binHi); binLo = binNext, binNext += 1.0) { - int bin = floor(binLo); + int bin = std::floor(binLo); double freq = (cumulative_[bin + 1] - cumulative_[bin]) * (std::min(binNext, binHi) - binLo); sumBinFreq += bin * freq; cumulFreq += freq; } + + if (cumulFreq == 0) { + /* interval had zero width or contained no weight? */ + return binHi; + } + /* add 0.5 to give an average for bin mid-points */ return sumBinFreq / cumulFreq + 0.5; } double Histogram::interQuantileMean(double qLo, double qHi) const { - assert(qHi > qLo); + assert(qHi >= qLo); double pLo = quantile(qLo); double pHi = quantile(qHi, (int)pLo); return interBinMean(pLo, pHi); diff --git a/src/ipa/rpi/controller/histogram.h b/src/ipa/rpi/controller/histogram.h index e2c5509b..ab4e5e31 100644 --- a/src/ipa/rpi/controller/histogram.h +++ b/src/ipa/rpi/controller/histogram.h @@ -2,7 +2,7 @@ /* * Copyright (C) 2019, Raspberry Pi Ltd * - * histogram.h - histogram calculation interface + * histogram calculation interface */ #pragma once diff --git a/src/ipa/rpi/controller/lux_status.h b/src/ipa/rpi/controller/lux_status.h index 5eb9faac..d8729f43 100644 --- a/src/ipa/rpi/controller/lux_status.h +++ b/src/ipa/rpi/controller/lux_status.h @@ -2,7 +2,7 @@ /* * Copyright (C) 2019, Raspberry Pi Ltd * - * lux_status.h - Lux control algorithm status + * Lux control algorithm status */ #pragma once diff --git a/src/ipa/rpi/controller/meson.build b/src/ipa/rpi/controller/meson.build index 32a4d31c..74b74888 100644 --- a/src/ipa/rpi/controller/meson.build +++ b/src/ipa/rpi/controller/meson.build @@ -5,7 +5,6 @@ rpi_ipa_controller_sources = files([ 'controller.cpp', 'device_status.cpp', 'histogram.cpp', - 'pwl.cpp', 'rpi/af.cpp', 'rpi/agc.cpp', 'rpi/agc_channel.cpp', @@ -32,4 +31,5 @@ rpi_ipa_controller_deps = [ ] rpi_ipa_controller_lib = static_library('rpi_ipa_controller', rpi_ipa_controller_sources, + include_directories : libipa_includes, dependencies : rpi_ipa_controller_deps) diff --git a/src/ipa/rpi/controller/metadata.h b/src/ipa/rpi/controller/metadata.h index a232dcb1..77d3b074 100644 --- a/src/ipa/rpi/controller/metadata.h +++ b/src/ipa/rpi/controller/metadata.h @@ -2,7 +2,7 @@ /* * Copyright (C) 2019-2021, Raspberry Pi Ltd * - * metadata.h - general metadata class + * general metadata class */ #pragma once @@ -12,6 +12,7 @@ #include <map> #include <mutex> #include <string> +#include <utility> #include <libcamera/base/thread_annotations.h> @@ -36,10 +37,10 @@ public: } template<typename T> - void set(std::string const &tag, T const &value) + void set(std::string const &tag, T &&value) { std::scoped_lock lock(mutex_); - data_[tag] = value; + data_[tag] = std::forward<T>(value); } template<typename T> @@ -90,6 +91,12 @@ public: data_.insert(other.data_.begin(), other.data_.end()); } + void erase(std::string const &tag) + { + std::scoped_lock lock(mutex_); + eraseLocked(tag); + } + template<typename T> T *getLocked(std::string const &tag) { @@ -104,10 +111,18 @@ public: } template<typename T> - void setLocked(std::string const &tag, T const &value) + void setLocked(std::string const &tag, T &&value) { /* Use this only if you're holding the lock yourself. */ - data_[tag] = value; + data_[tag] = std::forward<T>(value); + } + + void eraseLocked(std::string const &tag) + { + auto it = data_.find(tag); + if (it == data_.end()) + return; + data_.erase(it); } /* diff --git a/src/ipa/rpi/controller/noise_status.h b/src/ipa/rpi/controller/noise_status.h index da194f71..1919da32 100644 --- a/src/ipa/rpi/controller/noise_status.h +++ b/src/ipa/rpi/controller/noise_status.h @@ -2,7 +2,7 @@ /* * Copyright (C) 2019, Raspberry Pi Ltd * - * noise_status.h - Noise control algorithm status + * Noise control algorithm status */ #pragma once diff --git a/src/ipa/rpi/controller/pdaf_data.h b/src/ipa/rpi/controller/pdaf_data.h index 470510f2..779b987d 100644 --- a/src/ipa/rpi/controller/pdaf_data.h +++ b/src/ipa/rpi/controller/pdaf_data.h @@ -2,7 +2,7 @@ /* * Copyright (C) 2022, Raspberry Pi Ltd * - * pdaf_data.h - PDAF Metadata + * PDAF Metadata */ #pragma once diff --git a/src/ipa/rpi/controller/pwl.cpp b/src/ipa/rpi/controller/pwl.cpp deleted file mode 100644 index 70c2e24b..00000000 --- a/src/ipa/rpi/controller/pwl.cpp +++ /dev/null @@ -1,269 +0,0 @@ -/* SPDX-License-Identifier: BSD-2-Clause */ -/* - * Copyright (C) 2019, Raspberry Pi Ltd - * - * pwl.cpp - piecewise linear functions - */ - -#include <cassert> -#include <cmath> -#include <stdexcept> - -#include "pwl.h" - -using namespace RPiController; - -int Pwl::read(const libcamera::YamlObject ¶ms) -{ - if (!params.size() || params.size() % 2) - return -EINVAL; - - const auto &list = params.asList(); - - for (auto it = list.begin(); it != list.end(); it++) { - auto x = it->get<double>(); - if (!x) - return -EINVAL; - if (it != list.begin() && *x <= points_.back().x) - return -EINVAL; - - auto y = (++it)->get<double>(); - if (!y) - return -EINVAL; - - points_.push_back(Point(*x, *y)); - } - - return 0; -} - -void Pwl::append(double x, double y, const double eps) -{ - if (points_.empty() || points_.back().x + eps < x) - points_.push_back(Point(x, y)); -} - -void Pwl::prepend(double x, double y, const double eps) -{ - if (points_.empty() || points_.front().x - eps > x) - points_.insert(points_.begin(), Point(x, y)); -} - -Pwl::Interval Pwl::domain() const -{ - return Interval(points_[0].x, points_[points_.size() - 1].x); -} - -Pwl::Interval Pwl::range() const -{ - double lo = points_[0].y, hi = lo; - for (auto &p : points_) - lo = std::min(lo, p.y), hi = std::max(hi, p.y); - return Interval(lo, hi); -} - -bool Pwl::empty() const -{ - return points_.empty(); -} - -double Pwl::eval(double x, int *spanPtr, bool updateSpan) const -{ - int span = findSpan(x, spanPtr && *spanPtr != -1 ? *spanPtr : points_.size() / 2 - 1); - if (spanPtr && updateSpan) - *spanPtr = span; - return points_[span].y + - (x - points_[span].x) * (points_[span + 1].y - points_[span].y) / - (points_[span + 1].x - points_[span].x); -} - -int Pwl::findSpan(double x, int span) const -{ - /* - * Pwls are generally small, so linear search may well be faster than - * binary, though could review this if large PWls start turning up. - */ - int lastSpan = points_.size() - 2; - /* - * some algorithms may call us with span pointing directly at the last - * control point - */ - span = std::max(0, std::min(lastSpan, span)); - while (span < lastSpan && x >= points_[span + 1].x) - span++; - while (span && x < points_[span].x) - span--; - return span; -} - -Pwl::PerpType Pwl::invert(Point const &xy, Point &perp, int &span, - const double eps) const -{ - assert(span >= -1); - bool prevOffEnd = false; - for (span = span + 1; span < (int)points_.size() - 1; span++) { - Point spanVec = points_[span + 1] - points_[span]; - double t = ((xy - points_[span]) % spanVec) / spanVec.len2(); - if (t < -eps) /* off the start of this span */ - { - if (span == 0) { - perp = points_[span]; - return PerpType::Start; - } else if (prevOffEnd) { - perp = points_[span]; - return PerpType::Vertex; - } - } else if (t > 1 + eps) /* off the end of this span */ - { - if (span == (int)points_.size() - 2) { - perp = points_[span + 1]; - return PerpType::End; - } - prevOffEnd = true; - } else /* a true perpendicular */ - { - perp = points_[span] + spanVec * t; - return PerpType::Perpendicular; - } - } - return PerpType::None; -} - -Pwl Pwl::inverse(bool *trueInverse, const double eps) const -{ - bool appended = false, prepended = false, neither = false; - Pwl inverse; - - for (Point const &p : points_) { - if (inverse.empty()) - inverse.append(p.y, p.x, eps); - else if (std::abs(inverse.points_.back().x - p.y) <= eps || - std::abs(inverse.points_.front().x - p.y) <= eps) - /* do nothing */; - else if (p.y > inverse.points_.back().x) { - inverse.append(p.y, p.x, eps); - appended = true; - } else if (p.y < inverse.points_.front().x) { - inverse.prepend(p.y, p.x, eps); - prepended = true; - } else - neither = true; - } - - /* - * This is not a proper inverse if we found ourselves putting points - * onto both ends of the inverse, or if there were points that couldn't - * go on either. - */ - if (trueInverse) - *trueInverse = !(neither || (appended && prepended)); - - return inverse; -} - -Pwl Pwl::compose(Pwl const &other, const double eps) const -{ - double thisX = points_[0].x, thisY = points_[0].y; - int thisSpan = 0, otherSpan = other.findSpan(thisY, 0); - Pwl result({ { thisX, other.eval(thisY, &otherSpan, false) } }); - while (thisSpan != (int)points_.size() - 1) { - double dx = points_[thisSpan + 1].x - points_[thisSpan].x, - dy = points_[thisSpan + 1].y - points_[thisSpan].y; - if (std::abs(dy) > eps && - otherSpan + 1 < (int)other.points_.size() && - points_[thisSpan + 1].y >= - other.points_[otherSpan + 1].x + eps) { - /* - * next control point in result will be where this - * function's y reaches the next span in other - */ - thisX = points_[thisSpan].x + - (other.points_[otherSpan + 1].x - - points_[thisSpan].y) * - dx / dy; - thisY = other.points_[++otherSpan].x; - } else if (std::abs(dy) > eps && otherSpan > 0 && - points_[thisSpan + 1].y <= - other.points_[otherSpan - 1].x - eps) { - /* - * next control point in result will be where this - * function's y reaches the previous span in other - */ - thisX = points_[thisSpan].x + - (other.points_[otherSpan + 1].x - - points_[thisSpan].y) * - dx / dy; - thisY = other.points_[--otherSpan].x; - } else { - /* we stay in the same span in other */ - thisSpan++; - thisX = points_[thisSpan].x, - thisY = points_[thisSpan].y; - } - result.append(thisX, other.eval(thisY, &otherSpan, false), - eps); - } - return result; -} - -void Pwl::map(std::function<void(double x, double y)> f) const -{ - for (auto &pt : points_) - f(pt.x, pt.y); -} - -void Pwl::map2(Pwl const &pwl0, Pwl const &pwl1, - std::function<void(double x, double y0, double y1)> f) -{ - int span0 = 0, span1 = 0; - double x = std::min(pwl0.points_[0].x, pwl1.points_[0].x); - f(x, pwl0.eval(x, &span0, false), pwl1.eval(x, &span1, false)); - while (span0 < (int)pwl0.points_.size() - 1 || - span1 < (int)pwl1.points_.size() - 1) { - if (span0 == (int)pwl0.points_.size() - 1) - x = pwl1.points_[++span1].x; - else if (span1 == (int)pwl1.points_.size() - 1) - x = pwl0.points_[++span0].x; - else if (pwl0.points_[span0 + 1].x > pwl1.points_[span1 + 1].x) - x = pwl1.points_[++span1].x; - else - x = pwl0.points_[++span0].x; - f(x, pwl0.eval(x, &span0, false), pwl1.eval(x, &span1, false)); - } -} - -Pwl Pwl::combine(Pwl const &pwl0, Pwl const &pwl1, - std::function<double(double x, double y0, double y1)> f, - const double eps) -{ - Pwl result; - map2(pwl0, pwl1, [&](double x, double y0, double y1) { - result.append(x, f(x, y0, y1), eps); - }); - return result; -} - -void Pwl::matchDomain(Interval const &domain, bool clip, const double eps) -{ - int span = 0; - prepend(domain.start, eval(clip ? points_[0].x : domain.start, &span), - eps); - span = points_.size() - 2; - append(domain.end, eval(clip ? points_.back().x : domain.end, &span), - eps); -} - -Pwl &Pwl::operator*=(double d) -{ - for (auto &pt : points_) - pt.y *= d; - return *this; -} - -void Pwl::debug(FILE *fp) const -{ - fprintf(fp, "Pwl {\n"); - for (auto &p : points_) - fprintf(fp, "\t(%g, %g)\n", p.x, p.y); - fprintf(fp, "}\n"); -} diff --git a/src/ipa/rpi/controller/pwl.h b/src/ipa/rpi/controller/pwl.h deleted file mode 100644 index aacf6039..00000000 --- a/src/ipa/rpi/controller/pwl.h +++ /dev/null @@ -1,127 +0,0 @@ -/* SPDX-License-Identifier: BSD-2-Clause */ -/* - * Copyright (C) 2019, Raspberry Pi Ltd - * - * pwl.h - piecewise linear functions interface - */ -#pragma once - -#include <functional> -#include <math.h> -#include <vector> - -#include "libcamera/internal/yaml_parser.h" - -namespace RPiController { - -class Pwl -{ -public: - struct Interval { - Interval(double _start, double _end) - : start(_start), end(_end) - { - } - double start, end; - bool contains(double value) - { - return value >= start && value <= end; - } - double clip(double value) - { - return value < start ? start - : (value > end ? end : value); - } - double len() const { return end - start; } - }; - struct Point { - Point() : x(0), y(0) {} - Point(double _x, double _y) - : x(_x), y(_y) {} - double x, y; - Point operator-(Point const &p) const - { - return Point(x - p.x, y - p.y); - } - Point operator+(Point const &p) const - { - return Point(x + p.x, y + p.y); - } - double operator%(Point const &p) const - { - return x * p.x + y * p.y; - } - Point operator*(double f) const { return Point(x * f, y * f); } - Point operator/(double f) const { return Point(x / f, y / f); } - double len2() const { return x * x + y * y; } - double len() const { return sqrt(len2()); } - }; - Pwl() {} - Pwl(std::vector<Point> const &points) : points_(points) {} - int read(const libcamera::YamlObject ¶ms); - void append(double x, double y, const double eps = 1e-6); - void prepend(double x, double y, const double eps = 1e-6); - Interval domain() const; - Interval range() const; - bool empty() const; - /* - * Evaluate Pwl, optionally supplying an initial guess for the - * "span". The "span" may be optionally be updated. If you want to know - * the "span" value but don't have an initial guess you can set it to - * -1. - */ - double eval(double x, int *spanPtr = nullptr, - bool updateSpan = true) const; - /* - * Find perpendicular closest to xy, starting from span+1 so you can - * call it repeatedly to check for multiple closest points (set span to - * -1 on the first call). Also returns "pseudo" perpendiculars; see - * PerpType enum. - */ - enum class PerpType { - None, /* no perpendicular found */ - Start, /* start of Pwl is closest point */ - End, /* end of Pwl is closest point */ - Vertex, /* vertex of Pwl is closest point */ - Perpendicular /* true perpendicular found */ - }; - PerpType invert(Point const &xy, Point &perp, int &span, - const double eps = 1e-6) const; - /* - * Compute the inverse function. Indicate if it is a proper (true) - * inverse, or only a best effort (e.g. input was non-monotonic). - */ - Pwl inverse(bool *trueInverse = nullptr, const double eps = 1e-6) const; - /* Compose two Pwls together, doing "this" first and "other" after. */ - Pwl compose(Pwl const &other, const double eps = 1e-6) const; - /* Apply function to (x,y) values at every control point. */ - void map(std::function<void(double x, double y)> f) const; - /* - * Apply function to (x, y0, y1) values wherever either Pwl has a - * control point. - */ - static void map2(Pwl const &pwl0, Pwl const &pwl1, - std::function<void(double x, double y0, double y1)> f); - /* - * Combine two Pwls, meaning we create a new Pwl where the y values are - * given by running f wherever either has a knot. - */ - static Pwl - combine(Pwl const &pwl0, Pwl const &pwl1, - std::function<double(double x, double y0, double y1)> f, - const double eps = 1e-6); - /* - * Make "this" match (at least) the given domain. Any extension my be - * clipped or linear. - */ - void matchDomain(Interval const &domain, bool clip = true, - const double eps = 1e-6); - Pwl &operator*=(double d); - void debug(FILE *fp = stdout) const; - -private: - int findSpan(double x, int span) const; - std::vector<Point> points_; -}; - -} /* namespace RPiController */ diff --git a/src/ipa/rpi/controller/region_stats.h b/src/ipa/rpi/controller/region_stats.h index a8860dc8..c60f7d9a 100644 --- a/src/ipa/rpi/controller/region_stats.h +++ b/src/ipa/rpi/controller/region_stats.h @@ -2,7 +2,7 @@ /* * Copyright (C) 2022, Raspberry Pi Ltd * - * region_stats.h - Raspberry Pi region based statistics container + * Raspberry Pi region based statistics container */ #pragma once diff --git a/src/ipa/rpi/controller/rpi/af.cpp b/src/ipa/rpi/controller/rpi/af.cpp index ed0c8a94..2157eb94 100644 --- a/src/ipa/rpi/controller/rpi/af.cpp +++ b/src/ipa/rpi/controller/rpi/af.cpp @@ -2,13 +2,13 @@ /* * Copyright (C) 2022-2023, Raspberry Pi Ltd * - * af.cpp - Autofocus control algorithm + * Autofocus control algorithm */ #include "af.h" +#include <cmath> #include <iomanip> -#include <math.h> #include <stdlib.h> #include <libcamera/base/log.h> @@ -139,7 +139,7 @@ int Af::CfgParams::read(const libcamera::YamlObject ¶ms) readNumber<uint32_t>(skipFrames, params, "skip_frames"); if (params.contains("map")) - map.read(params["map"]); + map = params["map"].get<ipa::Pwl>(ipa::Pwl{}); else LOG(RPiAf, Warning) << "No map defined"; @@ -721,7 +721,7 @@ bool Af::setLensPosition(double dioptres, int *hwpos) if (mode_ == AfModeManual) { LOG(RPiAf, Debug) << "setLensPosition: " << dioptres; - ftarget_ = cfg_.map.domain().clip(dioptres); + ftarget_ = cfg_.map.domain().clamp(dioptres); changed = !(initted_ && fsmooth_ == ftarget_); updateLensPosition(); } diff --git a/src/ipa/rpi/controller/rpi/af.h b/src/ipa/rpi/controller/rpi/af.h index 6d2bae67..317a51f3 100644 --- a/src/ipa/rpi/controller/rpi/af.h +++ b/src/ipa/rpi/controller/rpi/af.h @@ -2,14 +2,15 @@ /* * Copyright (C) 2022-2023, Raspberry Pi Ltd * - * af.h - Autofocus control algorithm + * Autofocus control algorithm */ #pragma once #include "../af_algorithm.h" #include "../af_status.h" #include "../pdaf_data.h" -#include "../pwl.h" + +#include "libipa/pwl.h" /* * This algorithm implements a hybrid of CDAF and PDAF, favouring PDAF. @@ -100,7 +101,7 @@ private: uint32_t confThresh; /* PDAF confidence cell min (sensor-specific) */ uint32_t confClip; /* PDAF confidence cell max (sensor-specific) */ uint32_t skipFrames; /* frames to skip at start or modeswitch */ - Pwl map; /* converts dioptres -> lens driver position */ + libcamera::ipa::Pwl map; /* converts dioptres -> lens driver position */ CfgParams(); int read(const libcamera::YamlObject ¶ms); diff --git a/src/ipa/rpi/controller/rpi/agc.cpp b/src/ipa/rpi/controller/rpi/agc.cpp index 32eb3624..02bfdb4a 100644 --- a/src/ipa/rpi/controller/rpi/agc.cpp +++ b/src/ipa/rpi/controller/rpi/agc.cpp @@ -2,7 +2,7 @@ /* * Copyright (C) 2019, Raspberry Pi Ltd * - * agc.cpp - AGC/AEC control algorithm + * AGC/AEC control algorithm */ #include "agc.h" @@ -74,22 +74,62 @@ int Agc::checkChannel(unsigned int channelIndex) const return 0; } -void Agc::disableAuto(unsigned int channelIndex) +void Agc::disableAutoExposure() { - if (checkChannel(channelIndex)) - return; + LOG(RPiAgc, Debug) << "disableAutoExposure"; - LOG(RPiAgc, Debug) << "disableAuto for channel " << channelIndex; - channelData_[channelIndex].channel.disableAuto(); + /* All channels are enabled/disabled together. */ + for (auto &data : channelData_) + data.channel.disableAutoExposure(); } -void Agc::enableAuto(unsigned int channelIndex) +void Agc::enableAutoExposure() { - if (checkChannel(channelIndex)) - return; + LOG(RPiAgc, Debug) << "enableAutoExposure"; + + /* All channels are enabled/disabled together. */ + for (auto &data : channelData_) + data.channel.enableAutoExposure(); +} + +bool Agc::autoExposureEnabled() const +{ + LOG(RPiAgc, Debug) << "autoExposureEnabled"; - LOG(RPiAgc, Debug) << "enableAuto for channel " << channelIndex; - channelData_[channelIndex].channel.enableAuto(); + /* + * We always have at least one channel, and since all channels are + * enabled and disabled together we can simply check the first one. + */ + return channelData_[0].channel.autoExposureEnabled(); +} + +void Agc::disableAutoGain() +{ + LOG(RPiAgc, Debug) << "disableAutoGain"; + + /* All channels are enabled/disabled together. */ + for (auto &data : channelData_) + data.channel.disableAutoGain(); +} + +void Agc::enableAutoGain() +{ + LOG(RPiAgc, Debug) << "enableAutoGain"; + + /* All channels are enabled/disabled together. */ + for (auto &data : channelData_) + data.channel.enableAutoGain(); +} + +bool Agc::autoGainEnabled() const +{ + LOG(RPiAgc, Debug) << "autoGainEnabled"; + + /* + * We always have at least one channel, and since all channels are + * enabled and disabled together we can simply check the first one. + */ + return channelData_[0].channel.autoGainEnabled(); } unsigned int Agc::getConvergenceFrames() const @@ -118,31 +158,30 @@ void Agc::setEv(unsigned int channelIndex, double ev) channelData_[channelIndex].channel.setEv(ev); } -void Agc::setFlickerPeriod(unsigned int channelIndex, Duration flickerPeriod) +void Agc::setFlickerPeriod(Duration flickerPeriod) { - if (checkChannel(channelIndex)) - return; + LOG(RPiAgc, Debug) << "setFlickerPeriod " << flickerPeriod; - LOG(RPiAgc, Debug) << "setFlickerPeriod " << flickerPeriod - << " for channel " << channelIndex; - channelData_[channelIndex].channel.setFlickerPeriod(flickerPeriod); + /* Flicker period will be the same across all channels. */ + for (auto &data : channelData_) + data.channel.setFlickerPeriod(flickerPeriod); } -void Agc::setMaxShutter(Duration maxShutter) +void Agc::setMaxExposureTime(Duration maxExposureTime) { /* Frame durations will be the same across all channels too. */ for (auto &data : channelData_) - data.channel.setMaxShutter(maxShutter); + data.channel.setMaxExposureTime(maxExposureTime); } -void Agc::setFixedShutter(unsigned int channelIndex, Duration fixedShutter) +void Agc::setFixedExposureTime(unsigned int channelIndex, Duration fixedExposureTime) { if (checkChannel(channelIndex)) return; - LOG(RPiAgc, Debug) << "setFixedShutter " << fixedShutter + LOG(RPiAgc, Debug) << "setFixedExposureTime " << fixedExposureTime << " for channel " << channelIndex; - channelData_[channelIndex].channel.setFixedShutter(fixedShutter); + channelData_[channelIndex].channel.setFixedExposureTime(fixedExposureTime); } void Agc::setFixedAnalogueGain(unsigned int channelIndex, double fixedAnalogueGain) @@ -162,22 +201,22 @@ void Agc::setMeteringMode(std::string const &meteringModeName) data.channel.setMeteringMode(meteringModeName); } -void Agc::setExposureMode(unsigned int channelIndex, std::string const &exposureModeName) +void Agc::setExposureMode(std::string const &exposureModeName) { - if (checkChannel(channelIndex)) - return; + LOG(RPiAgc, Debug) << "setExposureMode " << exposureModeName; - LOG(RPiAgc, Debug) << "setExposureMode " << exposureModeName - << " for channel " << channelIndex; - channelData_[channelIndex].channel.setExposureMode(exposureModeName); + /* Exposure mode will be the same across all channels. */ + for (auto &data : channelData_) + data.channel.setExposureMode(exposureModeName); } -void Agc::setConstraintMode(unsigned int channelIndex, std::string const &constraintModeName) +void Agc::setConstraintMode(std::string const &constraintModeName) { - if (checkChannel(channelIndex)) - return; + LOG(RPiAgc, Debug) << "setConstraintMode " << constraintModeName; - channelData_[channelIndex].channel.setConstraintMode(constraintModeName); + /* Constraint mode will be the same across all channels. */ + for (auto &data : channelData_) + data.channel.setConstraintMode(constraintModeName); } template<typename T> diff --git a/src/ipa/rpi/controller/rpi/agc.h b/src/ipa/rpi/controller/rpi/agc.h index 90890439..c3a940bf 100644 --- a/src/ipa/rpi/controller/rpi/agc.h +++ b/src/ipa/rpi/controller/rpi/agc.h @@ -2,7 +2,7 @@ /* * Copyright (C) 2019, Raspberry Pi Ltd * - * agc.h - AGC/AEC control algorithm + * AGC/AEC control algorithm */ #pragma once @@ -31,20 +31,21 @@ public: unsigned int getConvergenceFrames() const override; std::vector<double> const &getWeights() const override; void setEv(unsigned int channel, double ev) override; - void setFlickerPeriod(unsigned int channelIndex, - libcamera::utils::Duration flickerPeriod) override; - void setMaxShutter(libcamera::utils::Duration maxShutter) override; - void setFixedShutter(unsigned int channelIndex, - libcamera::utils::Duration fixedShutter) override; + void setFlickerPeriod(libcamera::utils::Duration flickerPeriod) override; + void setMaxExposureTime(libcamera::utils::Duration maxExposureTime) override; + void setFixedExposureTime(unsigned int channelIndex, + libcamera::utils::Duration fixedExposureTime) override; void setFixedAnalogueGain(unsigned int channelIndex, double fixedAnalogueGain) override; void setMeteringMode(std::string const &meteringModeName) override; - void setExposureMode(unsigned int channelIndex, - std::string const &exposureModeName) override; - void setConstraintMode(unsigned int channelIndex, - std::string const &contraintModeName) override; - void enableAuto(unsigned int channelIndex) override; - void disableAuto(unsigned int channelIndex) override; + void setExposureMode(std::string const &exposureModeName) override; + void setConstraintMode(std::string const &contraintModeName) override; + void enableAutoExposure() override; + void disableAutoExposure() override; + bool autoExposureEnabled() const override; + void enableAutoGain() override; + void disableAutoGain() override; + bool autoGainEnabled() const override; void switchMode(CameraMode const &cameraMode, Metadata *metadata) override; void prepare(Metadata *imageMetadata) override; void process(StatisticsPtr &stats, Metadata *imageMetadata) override; diff --git a/src/ipa/rpi/controller/rpi/agc_channel.cpp b/src/ipa/rpi/controller/rpi/agc_channel.cpp index 1e7eae06..b2999364 100644 --- a/src/ipa/rpi/controller/rpi/agc_channel.cpp +++ b/src/ipa/rpi/controller/rpi/agc_channel.cpp @@ -2,7 +2,7 @@ /* * Copyright (C) 2023, Raspberry Pi Ltd * - * agc_channel.cpp - AGC/AEC control algorithm + * AGC/AEC control algorithm */ #include "agc_channel.h" @@ -12,6 +12,10 @@ #include <libcamera/base/log.h> +#include "libcamera/internal/vector.h" + +#include "libipa/colours.h" + #include "../awb_status.h" #include "../device_status.h" #include "../histogram.h" @@ -65,7 +69,7 @@ int AgcExposureMode::read(const libcamera::YamlObject ¶ms) auto value = params["shutter"].getList<double>(); if (!value) return -EINVAL; - std::transform(value->begin(), value->end(), std::back_inserter(shutter), + std::transform(value->begin(), value->end(), std::back_inserter(exposureTime), [](double v) { return v * 1us; }); value = params["gain"].getList<double>(); @@ -73,13 +77,13 @@ int AgcExposureMode::read(const libcamera::YamlObject ¶ms) return -EINVAL; gain = std::move(*value); - if (shutter.size() < 2 || gain.size() < 2) { + if (exposureTime.size() < 2 || gain.size() < 2) { LOG(RPiAgc, Error) << "AgcExposureMode: must have at least two entries in exposure profile"; return -EINVAL; } - if (shutter.size() != gain.size()) { + if (exposureTime.size() != gain.size()) { LOG(RPiAgc, Error) << "AgcExposureMode: expect same number of exposure and gain entries in exposure profile"; return -EINVAL; @@ -130,7 +134,8 @@ int AgcConstraint::read(const libcamera::YamlObject ¶ms) return -EINVAL; qHi = *value; - return yTarget.read(params["y_target"]); + yTarget = params["y_target"].get<ipa::Pwl>(ipa::Pwl{}); + return yTarget.empty() ? -EINVAL : 0; } static std::tuple<int, AgcConstraintMode> @@ -237,9 +242,9 @@ int AgcConfig::read(const libcamera::YamlObject ¶ms) return ret; } - ret = yTarget.read(params["y_target"]); - if (ret) - return ret; + yTarget = params["y_target"].get<ipa::Pwl>(ipa::Pwl{}); + if (yTarget.empty()) + return -EINVAL; speed = params["speed"].get<double>(0.2); startupFrames = params["startup_frames"].get<uint16_t>(10); @@ -253,11 +258,13 @@ int AgcConfig::read(const libcamera::YamlObject ¶ms) stableRegion = params["stable_region"].get<double>(0.02); + desaturate = params["desaturate"].get<int>(1); + return 0; } AgcChannel::ExposureValues::ExposureValues() - : shutter(0s), analogueGain(0), + : exposureTime(0s), analogueGain(0), totalExposure(0s), totalExposureNoDG(0s) { } @@ -266,9 +273,13 @@ AgcChannel::AgcChannel() : meteringMode_(nullptr), exposureMode_(nullptr), constraintMode_(nullptr), frameCount_(0), lockCount_(0), lastTargetExposure_(0s), ev_(1.0), flickerPeriod_(0s), - maxShutter_(0s), fixedShutter_(0s), fixedAnalogueGain_(0.0) + maxExposureTime_(0s), fixedExposureTime_(0s), fixedAnalogueGain_(0.0) { - memset(&awb_, 0, sizeof(awb_)); + /* Set AWB default values in case early frames have no updates in metadata. */ + awb_.gainR = 1.0; + awb_.gainG = 1.0; + awb_.gainB = 1.0; + /* * Setting status_.totalExposureValue_ to zero initially tells us * it's not been calculated yet (i.e. Process hasn't yet run). @@ -303,31 +314,49 @@ int AgcChannel::read(const libcamera::YamlObject ¶ms, exposureMode_ = &config_.exposureModes[exposureModeName_]; constraintModeName_ = config_.defaultConstraintMode; constraintMode_ = &config_.constraintModes[constraintModeName_]; - /* Set up the "last shutter/gain" values, in case AGC starts "disabled". */ - status_.shutterTime = config_.defaultExposureTime; + /* Set up the "last exposure time/gain" values, in case AGC starts "disabled". */ + status_.exposureTime = config_.defaultExposureTime; status_.analogueGain = config_.defaultAnalogueGain; return 0; } -void AgcChannel::disableAuto() +void AgcChannel::disableAutoExposure() +{ + fixedExposureTime_ = status_.exposureTime; +} + +void AgcChannel::enableAutoExposure() +{ + fixedExposureTime_ = 0s; +} + +bool AgcChannel::autoExposureEnabled() const +{ + return fixedExposureTime_ == 0s; +} + +void AgcChannel::disableAutoGain() { - fixedShutter_ = status_.shutterTime; fixedAnalogueGain_ = status_.analogueGain; } -void AgcChannel::enableAuto() +void AgcChannel::enableAutoGain() { - fixedShutter_ = 0s; fixedAnalogueGain_ = 0; } +bool AgcChannel::autoGainEnabled() const +{ + return fixedAnalogueGain_ == 0; +} + unsigned int AgcChannel::getConvergenceFrames() const { /* - * If shutter and gain have been explicitly set, there is no + * If exposure time and gain have been explicitly set, there is no * convergence to happen, so no need to drop any frames - return zero. */ - if (fixedShutter_ && fixedAnalogueGain_) + if (fixedExposureTime_ && fixedAnalogueGain_) return 0; else return config_.convergenceFrames; @@ -355,16 +384,16 @@ void AgcChannel::setFlickerPeriod(Duration flickerPeriod) flickerPeriod_ = flickerPeriod; } -void AgcChannel::setMaxShutter(Duration maxShutter) +void AgcChannel::setMaxExposureTime(Duration maxExposureTime) { - maxShutter_ = maxShutter; + maxExposureTime_ = maxExposureTime; } -void AgcChannel::setFixedShutter(Duration fixedShutter) +void AgcChannel::setFixedExposureTime(Duration fixedExposureTime) { - fixedShutter_ = fixedShutter; + fixedExposureTime_ = fixedExposureTime; /* Set this in case someone calls disableAuto() straight after. */ - status_.shutterTime = limitShutter(fixedShutter_); + status_.exposureTime = limitExposureTime(fixedExposureTime_); } void AgcChannel::setFixedAnalogueGain(double fixedAnalogueGain) @@ -404,23 +433,22 @@ void AgcChannel::switchMode(CameraMode const &cameraMode, double lastSensitivity = mode_.sensitivity; mode_ = cameraMode; - Duration fixedShutter = limitShutter(fixedShutter_); - if (fixedShutter && fixedAnalogueGain_) { + Duration fixedExposureTime = limitExposureTime(fixedExposureTime_); + if (fixedExposureTime && fixedAnalogueGain_) { /* We're going to reset the algorithm here with these fixed values. */ - fetchAwbStatus(metadata); double minColourGain = std::min({ awb_.gainR, awb_.gainG, awb_.gainB, 1.0 }); ASSERT(minColourGain != 0.0); /* This is the equivalent of computeTargetExposure and applyDigitalGain. */ - target_.totalExposureNoDG = fixedShutter_ * fixedAnalogueGain_; + target_.totalExposureNoDG = fixedExposureTime_ * fixedAnalogueGain_; target_.totalExposure = target_.totalExposureNoDG / minColourGain; /* Equivalent of filterExposure. This resets any "history". */ filtered_ = target_; /* Equivalent of divideUpExposure. */ - filtered_.shutter = fixedShutter; + filtered_.exposureTime = fixedExposureTime; filtered_.analogueGain = fixedAnalogueGain_; } else if (status_.totalExposureValue) { /* @@ -442,14 +470,15 @@ void AgcChannel::switchMode(CameraMode const &cameraMode, divideUpExposure(); } else { /* - * We come through here on startup, when at least one of the shutter - * or gain has not been fixed. We must still write those values out so - * that they will be applied immediately. We supply some arbitrary defaults - * for any that weren't set. + * We come through here on startup, when at least one of the + * exposure time or gain has not been fixed. We must still + * write those values out so that they will be applied + * immediately. We supply some arbitrary defaults for any that + * weren't set. */ /* Equivalent of divideUpExposure. */ - filtered_.shutter = fixedShutter ? fixedShutter : config_.defaultExposureTime; + filtered_.exposureTime = fixedExposureTime ? fixedExposureTime : config_.defaultExposureTime; filtered_.analogueGain = fixedAnalogueGain_ ? fixedAnalogueGain_ : config_.defaultAnalogueGain; } @@ -462,6 +491,9 @@ void AgcChannel::prepare(Metadata *imageMetadata) AgcStatus delayedStatus; AgcPrepareStatus prepareStatus; + /* Fetch the AWB status now because AWB also sets it in the prepare method. */ + fetchAwbStatus(imageMetadata); + if (!imageMetadata->get("agc.delayed_status", delayedStatus)) totalExposureValue = delayedStatus.totalExposureValue; @@ -472,7 +504,7 @@ void AgcChannel::prepare(Metadata *imageMetadata) /* Process has run, so we have meaningful values. */ DeviceStatus deviceStatus; if (imageMetadata->get("device.status", deviceStatus) == 0) { - Duration actualExposure = deviceStatus.shutterSpeed * + Duration actualExposure = deviceStatus.exposureTime * deviceStatus.analogueGain; if (actualExposure) { double digitalGain = totalExposureValue / actualExposure; @@ -505,8 +537,6 @@ void AgcChannel::process(StatisticsPtr &stats, DeviceStatus const &deviceStatus, * configuration, that kind of thing. */ housekeepConfig(); - /* Fetch the AWB status immediately, so that we can assume it's there. */ - fetchAwbStatus(imageMetadata); /* Get the current exposure values for the frame that's just arrived. */ fetchCurrentExposure(deviceStatus); /* Compute the total gain we require relative to the current exposure. */ @@ -528,7 +558,7 @@ void AgcChannel::process(StatisticsPtr &stats, DeviceStatus const &deviceStatus, */ bool desaturate = applyDigitalGain(gain, targetY, channelBound); /* - * The last thing is to divide up the exposure value into a shutter time + * The last thing is to divide up the exposure value into a exposure time * and analogue gain, according to the current exposure mode. */ divideUpExposure(); @@ -544,7 +574,7 @@ bool AgcChannel::updateLockStatus(DeviceStatus const &deviceStatus) const double resetMargin = 1.5; /* Add 200us to the exposure time error to allow for line quantisation. */ - Duration exposureError = lastDeviceStatus_.shutterSpeed * errorFactor + 200us; + Duration exposureError = lastDeviceStatus_.exposureTime * errorFactor + 200us; double gainError = lastDeviceStatus_.analogueGain * errorFactor; Duration targetError = lastTargetExposure_ * errorFactor; @@ -553,15 +583,15 @@ bool AgcChannel::updateLockStatus(DeviceStatus const &deviceStatus) * the values we keep requesting may be unachievable. For this reason * we only insist that we're close to values in the past few frames. */ - if (deviceStatus.shutterSpeed > lastDeviceStatus_.shutterSpeed - exposureError && - deviceStatus.shutterSpeed < lastDeviceStatus_.shutterSpeed + exposureError && + if (deviceStatus.exposureTime > lastDeviceStatus_.exposureTime - exposureError && + deviceStatus.exposureTime < lastDeviceStatus_.exposureTime + exposureError && deviceStatus.analogueGain > lastDeviceStatus_.analogueGain - gainError && deviceStatus.analogueGain < lastDeviceStatus_.analogueGain + gainError && status_.targetExposureValue > lastTargetExposure_ - targetError && status_.targetExposureValue < lastTargetExposure_ + targetError) lockCount_ = std::min(lockCount_ + 1, maxLockCount); - else if (deviceStatus.shutterSpeed < lastDeviceStatus_.shutterSpeed - resetMargin * exposureError || - deviceStatus.shutterSpeed > lastDeviceStatus_.shutterSpeed + resetMargin * exposureError || + else if (deviceStatus.exposureTime < lastDeviceStatus_.exposureTime - resetMargin * exposureError || + deviceStatus.exposureTime > lastDeviceStatus_.exposureTime + resetMargin * exposureError || deviceStatus.analogueGain < lastDeviceStatus_.analogueGain - resetMargin * gainError || deviceStatus.analogueGain > lastDeviceStatus_.analogueGain + resetMargin * gainError || status_.targetExposureValue < lastTargetExposure_ - resetMargin * targetError || @@ -579,11 +609,11 @@ void AgcChannel::housekeepConfig() { /* First fetch all the up-to-date settings, so no one else has to do it. */ status_.ev = ev_; - status_.fixedShutter = limitShutter(fixedShutter_); + status_.fixedExposureTime = limitExposureTime(fixedExposureTime_); status_.fixedAnalogueGain = fixedAnalogueGain_; status_.flickerPeriod = flickerPeriod_; - LOG(RPiAgc, Debug) << "ev " << status_.ev << " fixedShutter " - << status_.fixedShutter << " fixedAnalogueGain " + LOG(RPiAgc, Debug) << "ev " << status_.ev << " fixedExposureTime " + << status_.fixedExposureTime << " fixedAnalogueGain " << status_.fixedAnalogueGain; /* * Make sure the "mode" pointers point to the up-to-date things, if @@ -627,17 +657,14 @@ void AgcChannel::housekeepConfig() void AgcChannel::fetchCurrentExposure(DeviceStatus const &deviceStatus) { - current_.shutter = deviceStatus.shutterSpeed; + current_.exposureTime = deviceStatus.exposureTime; current_.analogueGain = deviceStatus.analogueGain; current_.totalExposure = 0s; /* this value is unused */ - current_.totalExposureNoDG = current_.shutter * current_.analogueGain; + current_.totalExposureNoDG = current_.exposureTime * current_.analogueGain; } void AgcChannel::fetchAwbStatus(Metadata *imageMetadata) { - awb_.gainR = 1.0; /* in case not found in metadata */ - awb_.gainG = 1.0; - awb_.gainB = 1.0; if (imageMetadata->get("awb.status", awb_) != 0) LOG(RPiAgc, Debug) << "No AWB status found"; } @@ -674,12 +701,13 @@ static double computeInitialY(StatisticsPtr &stats, AwbStatus const &awb, * Note that the weights are applied by the IPA to the statistics directly, * before they are given to us here. */ - double rSum = 0, gSum = 0, bSum = 0, pixelSum = 0; + RGB<double> sum{ 0.0 }; + double pixelSum = 0; for (unsigned int i = 0; i < stats->agcRegions.numRegions(); i++) { auto ®ion = stats->agcRegions.get(i); - rSum += std::min<double>(region.val.rSum * gain, (maxVal - 1) * region.counted); - gSum += std::min<double>(region.val.gSum * gain, (maxVal - 1) * region.counted); - bSum += std::min<double>(region.val.bSum * gain, (maxVal - 1) * region.counted); + sum.r() += std::min<double>(region.val.rSum * gain, (maxVal - 1) * region.counted); + sum.g() += std::min<double>(region.val.gSum * gain, (maxVal - 1) * region.counted); + sum.b() += std::min<double>(region.val.bSum * gain, (maxVal - 1) * region.counted); pixelSum += region.counted; } if (pixelSum == 0.0) { @@ -687,14 +715,11 @@ static double computeInitialY(StatisticsPtr &stats, AwbStatus const &awb, return 0; } - double ySum; /* Factor in the AWB correction if needed. */ - if (stats->agcStatsPos == Statistics::AgcStatsPos::PreWb) { - ySum = rSum * awb.gainR * .299 + - gSum * awb.gainG * .587 + - bSum * awb.gainB * .114; - } else - ySum = rSum * .299 + gSum * .587 + bSum * .114; + if (stats->agcStatsPos == Statistics::AgcStatsPos::PreWb) + sum *= RGB<double>{ { awb.gainR, awb.gainG, awb.gainB } }; + + double ySum = ipa::rec601LuminanceFromRGB(sum); return ySum / pixelSum / (1 << 16); } @@ -712,7 +737,7 @@ static constexpr double EvGainYTargetLimit = 0.9; static double constraintComputeGain(AgcConstraint &c, const Histogram &h, double lux, double evGain, double &targetY) { - targetY = c.yTarget.eval(c.yTarget.domain().clip(lux)); + targetY = c.yTarget.eval(c.yTarget.domain().clamp(lux)); targetY = std::min(EvGainYTargetLimit, targetY * evGain); double iqm = h.interQuantileMean(c.qLo, c.qHi); return (targetY * h.bins()) / iqm; @@ -731,7 +756,7 @@ void AgcChannel::computeGain(StatisticsPtr &statistics, Metadata *imageMetadata, * The initial gain and target_Y come from some of the regions. After * that we consider the histogram constraints. */ - targetY = config_.yTarget.eval(config_.yTarget.domain().clip(lux.lux)); + targetY = config_.yTarget.eval(config_.yTarget.domain().clamp(lux.lux)); targetY = std::min(EvGainYTargetLimit, targetY * evGain); /* @@ -771,17 +796,17 @@ void AgcChannel::computeGain(StatisticsPtr &statistics, Metadata *imageMetadata, void AgcChannel::computeTargetExposure(double gain) { - if (status_.fixedShutter && status_.fixedAnalogueGain) { + if (status_.fixedExposureTime && status_.fixedAnalogueGain) { /* - * When ag and shutter are both fixed, we need to drive the - * total exposure so that we end up with a digital gain of at least - * 1/minColourGain. Otherwise we'd desaturate channels causing - * white to go cyan or magenta. + * When analogue gain and exposure time are both fixed, we need + * to drive the total exposure so that we end up with a digital + * gain of at least 1/minColourGain. Otherwise we'd desaturate + * channels causing white to go cyan or magenta. */ double minColourGain = std::min({ awb_.gainR, awb_.gainG, awb_.gainB, 1.0 }); ASSERT(minColourGain != 0.0); target_.totalExposure = - status_.fixedShutter * status_.fixedAnalogueGain / minColourGain; + status_.fixedExposureTime * status_.fixedAnalogueGain / minColourGain; } else { /* * The statistics reflect the image without digital gain, so the final @@ -789,12 +814,12 @@ void AgcChannel::computeTargetExposure(double gain) */ target_.totalExposure = current_.totalExposureNoDG * gain; /* The final target exposure is also limited to what the exposure mode allows. */ - Duration maxShutter = status_.fixedShutter - ? status_.fixedShutter - : exposureMode_->shutter.back(); - maxShutter = limitShutter(maxShutter); + Duration maxExposureTime = status_.fixedExposureTime + ? status_.fixedExposureTime + : exposureMode_->exposureTime.back(); + maxExposureTime = limitExposureTime(maxExposureTime); Duration maxTotalExposure = - maxShutter * + maxExposureTime * (status_.fixedAnalogueGain != 0.0 ? status_.fixedAnalogueGain : exposureMode_->gain.back()); @@ -860,8 +885,10 @@ bool AgcChannel::applyDigitalGain(double gain, double targetY, bool channelBound * quickly (and we then approach the correct value more quickly from * below). */ - bool desaturate = !channelBound && - targetY > config_.fastReduceThreshold && gain < sqrt(targetY); + bool desaturate = false; + if (config_.desaturate) + desaturate = !channelBound && + targetY > config_.fastReduceThreshold && gain < sqrt(targetY); if (desaturate) dg /= config_.fastReduceThreshold; LOG(RPiAgc, Debug) << "Digital gain " << dg << " desaturate? " << desaturate; @@ -876,12 +903,16 @@ void AgcChannel::filterExposure() double stableRegion = config_.stableRegion; /* - * AGC adapts instantly if both shutter and gain are directly specified - * or we're in the startup phase. + * AGC adapts instantly if both exposure time and gain are directly + * specified or we're in the startup phase. Also disable the stable + * region, because we want to reflect any user exposure/gain updates, + * however small. */ - if ((status_.fixedShutter && status_.fixedAnalogueGain) || - frameCount_ <= config_.startupFrames) + if ((status_.fixedExposureTime && status_.fixedAnalogueGain) || + frameCount_ <= config_.startupFrames) { speed = 1.0; + stableRegion = 0.0; + } if (!filtered_.totalExposure) { filtered_.totalExposure = target_.totalExposure; } else if (filtered_.totalExposure * (1.0 - stableRegion) < target_.totalExposure && @@ -905,34 +936,34 @@ void AgcChannel::filterExposure() void AgcChannel::divideUpExposure() { /* - * Sending the fixed shutter/gain cases through the same code may seem - * unnecessary, but it will make more sense when extend this to cover - * variable aperture. + * Sending the fixed exposure time/gain cases through the same code may + * seem unnecessary, but it will make more sense when extend this to + * cover variable aperture. */ Duration exposureValue = filtered_.totalExposureNoDG; - Duration shutterTime; + Duration exposureTime; double analogueGain; - shutterTime = status_.fixedShutter ? status_.fixedShutter - : exposureMode_->shutter[0]; - shutterTime = limitShutter(shutterTime); + exposureTime = status_.fixedExposureTime ? status_.fixedExposureTime + : exposureMode_->exposureTime[0]; + exposureTime = limitExposureTime(exposureTime); analogueGain = status_.fixedAnalogueGain != 0.0 ? status_.fixedAnalogueGain : exposureMode_->gain[0]; analogueGain = limitGain(analogueGain); - if (shutterTime * analogueGain < exposureValue) { + if (exposureTime * analogueGain < exposureValue) { for (unsigned int stage = 1; stage < exposureMode_->gain.size(); stage++) { - if (!status_.fixedShutter) { - Duration stageShutter = - limitShutter(exposureMode_->shutter[stage]); - if (stageShutter * analogueGain >= exposureValue) { - shutterTime = exposureValue / analogueGain; + if (!status_.fixedExposureTime) { + Duration stageExposureTime = + limitExposureTime(exposureMode_->exposureTime[stage]); + if (stageExposureTime * analogueGain >= exposureValue) { + exposureTime = exposureValue / analogueGain; break; } - shutterTime = stageShutter; + exposureTime = stageExposureTime; } if (status_.fixedAnalogueGain == 0.0) { - if (exposureMode_->gain[stage] * shutterTime >= exposureValue) { - analogueGain = exposureValue / shutterTime; + if (exposureMode_->gain[stage] * exposureTime >= exposureValue) { + analogueGain = exposureValue / exposureTime; break; } analogueGain = exposureMode_->gain[stage]; @@ -940,18 +971,19 @@ void AgcChannel::divideUpExposure() } } } - LOG(RPiAgc, Debug) << "Divided up shutter and gain are " << shutterTime << " and " - << analogueGain; + LOG(RPiAgc, Debug) + << "Divided up exposure time and gain are " << exposureTime + << " and " << analogueGain; /* - * Finally adjust shutter time for flicker avoidance (require both - * shutter and gain not to be fixed). + * Finally adjust exposure time for flicker avoidance (require both + * exposure time and gain not to be fixed). */ - if (!status_.fixedShutter && !status_.fixedAnalogueGain && + if (!status_.fixedExposureTime && !status_.fixedAnalogueGain && status_.flickerPeriod) { - int flickerPeriods = shutterTime / status_.flickerPeriod; + int flickerPeriods = exposureTime / status_.flickerPeriod; if (flickerPeriods) { - Duration newShutterTime = flickerPeriods * status_.flickerPeriod; - analogueGain *= shutterTime / newShutterTime; + Duration newExposureTime = flickerPeriods * status_.flickerPeriod; + analogueGain *= exposureTime / newExposureTime; /* * We should still not allow the ag to go over the * largest value in the exposure mode. Note that this @@ -960,20 +992,20 @@ void AgcChannel::divideUpExposure() */ analogueGain = std::min(analogueGain, exposureMode_->gain.back()); analogueGain = limitGain(analogueGain); - shutterTime = newShutterTime; + exposureTime = newExposureTime; } - LOG(RPiAgc, Debug) << "After flicker avoidance, shutter " - << shutterTime << " gain " << analogueGain; + LOG(RPiAgc, Debug) << "After flicker avoidance, exposure time " + << exposureTime << " gain " << analogueGain; } - filtered_.shutter = shutterTime; + filtered_.exposureTime = exposureTime; filtered_.analogueGain = analogueGain; } void AgcChannel::writeAndFinish(Metadata *imageMetadata, bool desaturate) { status_.totalExposureValue = filtered_.totalExposure; - status_.targetExposureValue = desaturate ? 0s : target_.totalExposureNoDG; - status_.shutterTime = filtered_.shutter; + status_.targetExposureValue = desaturate ? 0s : target_.totalExposure; + status_.exposureTime = filtered_.exposureTime; status_.analogueGain = filtered_.analogueGain; /* * Write to metadata as well, in case anyone wants to update the camera @@ -982,32 +1014,32 @@ void AgcChannel::writeAndFinish(Metadata *imageMetadata, bool desaturate) imageMetadata->set("agc.status", status_); LOG(RPiAgc, Debug) << "Output written, total exposure requested is " << filtered_.totalExposure; - LOG(RPiAgc, Debug) << "Camera exposure update: shutter time " << filtered_.shutter + LOG(RPiAgc, Debug) << "Camera exposure update: exposure time " << filtered_.exposureTime << " analogue gain " << filtered_.analogueGain; } -Duration AgcChannel::limitShutter(Duration shutter) +Duration AgcChannel::limitExposureTime(Duration exposureTime) { /* - * shutter == 0 is a special case for fixed shutter values, and must pass - * through unchanged + * exposureTime == 0 is a special case for fixed exposure time values, + * and must pass through unchanged. */ - if (!shutter) - return shutter; + if (!exposureTime) + return exposureTime; - shutter = std::clamp(shutter, mode_.minShutter, maxShutter_); - return shutter; + exposureTime = std::clamp(exposureTime, mode_.minExposureTime, maxExposureTime_); + return exposureTime; } double AgcChannel::limitGain(double gain) const { /* - * Only limit the lower bounds of the gain value to what the sensor limits. - * The upper bound on analogue gain will be made up with additional digital - * gain applied by the ISP. + * Only limit the lower bounds of the gain value to what the sensor + * limits. The upper bound on analogue gain will be made up with + * additional digital gain applied by the ISP. * - * gain == 0.0 is a special case for fixed shutter values, and must pass - * through unchanged + * gain == 0.0 is a special case for fixed exposure time values, and + * must pass through unchanged. */ if (!gain) return gain; diff --git a/src/ipa/rpi/controller/rpi/agc_channel.h b/src/ipa/rpi/controller/rpi/agc_channel.h index c1808422..fa697e6f 100644 --- a/src/ipa/rpi/controller/rpi/agc_channel.h +++ b/src/ipa/rpi/controller/rpi/agc_channel.h @@ -2,7 +2,7 @@ /* * Copyright (C) 2023, Raspberry Pi Ltd * - * agc_channel.h - AGC/AEC control algorithm + * AGC/AEC control algorithm */ #pragma once @@ -12,10 +12,11 @@ #include <libcamera/base/utils.h> +#include <libipa/pwl.h> + #include "../agc_status.h" #include "../awb_status.h" #include "../controller.h" -#include "../pwl.h" /* This is our implementation of AGC. */ @@ -29,7 +30,7 @@ struct AgcMeteringMode { }; struct AgcExposureMode { - std::vector<libcamera::utils::Duration> shutter; + std::vector<libcamera::utils::Duration> exposureTime; std::vector<double> gain; int read(const libcamera::YamlObject ¶ms); }; @@ -40,7 +41,7 @@ struct AgcConstraint { Bound bound; double qLo; double qHi; - Pwl yTarget; + libcamera::ipa::Pwl yTarget; int read(const libcamera::YamlObject ¶ms); }; @@ -61,7 +62,7 @@ struct AgcConfig { std::map<std::string, AgcExposureMode> exposureModes; std::map<std::string, AgcConstraintMode> constraintModes; std::vector<AgcChannelConstraint> channelConstraints; - Pwl yTarget; + libcamera::ipa::Pwl yTarget; double speed; uint16_t startupFrames; unsigned int convergenceFrames; @@ -76,6 +77,7 @@ struct AgcConfig { libcamera::utils::Duration defaultExposureTime; double defaultAnalogueGain; double stableRegion; + bool desaturate; }; class AgcChannel @@ -88,14 +90,18 @@ public: std::vector<double> const &getWeights() const; void setEv(double ev); void setFlickerPeriod(libcamera::utils::Duration flickerPeriod); - void setMaxShutter(libcamera::utils::Duration maxShutter); - void setFixedShutter(libcamera::utils::Duration fixedShutter); + void setMaxExposureTime(libcamera::utils::Duration maxExposureTime); + void setFixedExposureTime(libcamera::utils::Duration fixedExposureTime); void setFixedAnalogueGain(double fixedAnalogueGain); void setMeteringMode(std::string const &meteringModeName); void setExposureMode(std::string const &exposureModeName); void setConstraintMode(std::string const &contraintModeName); - void enableAuto(); - void disableAuto(); + void enableAutoExposure(); + void disableAutoExposure(); + bool autoExposureEnabled() const; + void enableAutoGain(); + void disableAutoGain(); + bool autoGainEnabled() const; void switchMode(CameraMode const &cameraMode, Metadata *metadata); void prepare(Metadata *imageMetadata); void process(StatisticsPtr &stats, DeviceStatus const &deviceStatus, Metadata *imageMetadata, @@ -115,7 +121,7 @@ private: bool applyDigitalGain(double gain, double targetY, bool channelBound); void divideUpExposure(); void writeAndFinish(Metadata *imageMetadata, bool desaturate); - libcamera::utils::Duration limitShutter(libcamera::utils::Duration shutter); + libcamera::utils::Duration limitExposureTime(libcamera::utils::Duration exposureTime); double limitGain(double gain) const; AgcMeteringMode *meteringMode_; AgcExposureMode *exposureMode_; @@ -126,7 +132,7 @@ private: struct ExposureValues { ExposureValues(); - libcamera::utils::Duration shutter; + libcamera::utils::Duration exposureTime; double analogueGain; libcamera::utils::Duration totalExposure; libcamera::utils::Duration totalExposureNoDG; /* without digital gain */ @@ -144,8 +150,8 @@ private: std::string constraintModeName_; double ev_; libcamera::utils::Duration flickerPeriod_; - libcamera::utils::Duration maxShutter_; - libcamera::utils::Duration fixedShutter_; + libcamera::utils::Duration maxExposureTime_; + libcamera::utils::Duration fixedExposureTime_; double fixedAnalogueGain_; }; diff --git a/src/ipa/rpi/controller/rpi/alsc.cpp b/src/ipa/rpi/controller/rpi/alsc.cpp index b7413611..21edb819 100644 --- a/src/ipa/rpi/controller/rpi/alsc.cpp +++ b/src/ipa/rpi/controller/rpi/alsc.cpp @@ -2,13 +2,14 @@ /* * Copyright (C) 2019, Raspberry Pi Ltd * - * alsc.cpp - ALSC (auto lens shading correction) control algorithm + * ALSC (auto lens shading correction) control algorithm */ #include <algorithm> +#include <cmath> #include <functional> -#include <math.h> #include <numeric> +#include <vector> #include <libcamera/base/log.h> #include <libcamera/base/span.h> @@ -251,12 +252,12 @@ static bool compareModes(CameraMode const &cm0, CameraMode const &cm1) */ if (cm0.transform != cm1.transform) return true; - int leftDiff = abs(cm0.cropX - cm1.cropX); - int topDiff = abs(cm0.cropY - cm1.cropY); - int rightDiff = fabs(cm0.cropX + cm0.scaleX * cm0.width - - cm1.cropX - cm1.scaleX * cm1.width); - int bottomDiff = fabs(cm0.cropY + cm0.scaleY * cm0.height - - cm1.cropY - cm1.scaleY * cm1.height); + int leftDiff = std::abs(cm0.cropX - cm1.cropX); + int topDiff = std::abs(cm0.cropY - cm1.cropY); + int rightDiff = std::abs(cm0.cropX + cm0.scaleX * cm0.width - + cm1.cropX - cm1.scaleX * cm1.width); + int bottomDiff = std::abs(cm0.cropY + cm0.scaleY * cm0.height - + cm1.cropY - cm1.scaleY * cm1.height); /* * These thresholds are a rather arbitrary amount chosen to trigger * when carrying on with the previously calculated tables might be @@ -496,8 +497,9 @@ void resampleCalTable(const Array2D<double> &calTableIn, * Precalculate and cache the x sampling locations and phases to save * recomputing them on every row. */ - int xLo[X], xHi[X]; - double xf[X]; + std::vector<int> xLo(X); + std::vector<int> xHi(X); + std::vector<double> xf(X); double scaleX = cameraMode.sensorWidth / (cameraMode.width * cameraMode.scaleX); double xOff = cameraMode.cropX / (double)cameraMode.sensorWidth; @@ -548,7 +550,9 @@ static void calculateCrCb(const RgbyRegions &awbRegion, Array2D<double> &cr, for (unsigned int i = 0; i < cr.size(); i++) { auto s = awbRegion.get(i); - if (s.counted <= minCount || s.val.gSum / s.counted <= minG) { + /* Do not return unreliable, or zero, colour ratio statistics. */ + if (s.counted <= minCount || s.val.gSum / s.counted <= minG || + s.val.rSum / s.counted <= minG || s.val.bSum / s.counted <= minG) { cr[i] = cb[i] = InsufficientData; continue; } @@ -728,7 +732,7 @@ static double gaussSeidel2Sor(const SparseArray<double> &M, double omega, double maxDiff = 0; for (i = 0; i < XY; i++) { lambda[i] = oldLambda[i] + (lambda[i] - oldLambda[i]) * omega; - if (fabs(lambda[i] - oldLambda[i]) > fabs(maxDiff)) + if (std::abs(lambda[i] - oldLambda[i]) > std::abs(maxDiff)) maxDiff = lambda[i] - oldLambda[i]; } return maxDiff; @@ -760,7 +764,7 @@ static void runMatrixIterations(const Array2D<double> &C, constructM(C, W, M); double lastMaxDiff = std::numeric_limits<double>::max(); for (unsigned int i = 0; i < nIter; i++) { - double maxDiff = fabs(gaussSeidel2Sor(M, omega, lambda, lambdaBound)); + double maxDiff = std::abs(gaussSeidel2Sor(M, omega, lambda, lambdaBound)); if (maxDiff < threshold) { LOG(RPiAlsc, Debug) << "Stop after " << i + 1 << " iterations"; diff --git a/src/ipa/rpi/controller/rpi/alsc.h b/src/ipa/rpi/controller/rpi/alsc.h index 0b6d9478..31087982 100644 --- a/src/ipa/rpi/controller/rpi/alsc.h +++ b/src/ipa/rpi/controller/rpi/alsc.h @@ -2,7 +2,7 @@ /* * Copyright (C) 2019, Raspberry Pi Ltd * - * alsc.h - ALSC (auto lens shading correction) control algorithm + * ALSC (auto lens shading correction) control algorithm */ #pragma once diff --git a/src/ipa/rpi/controller/rpi/awb.cpp b/src/ipa/rpi/controller/rpi/awb.cpp index 5ae0c2fa..365b595f 100644 --- a/src/ipa/rpi/controller/rpi/awb.cpp +++ b/src/ipa/rpi/controller/rpi/awb.cpp @@ -2,10 +2,11 @@ /* * Copyright (C) 2019, Raspberry Pi Ltd * - * awb.cpp - AWB control algorithm + * AWB control algorithm */ #include <assert.h> +#include <cmath> #include <functional> #include <libcamera/base/log.h> @@ -20,6 +21,8 @@ using namespace libcamera; LOG_DEFINE_CATEGORY(RPiAwb) +constexpr double kDefaultCT = 4500.0; + #define NAME "rpi.awb" /* @@ -49,10 +52,11 @@ int AwbPrior::read(const libcamera::YamlObject ¶ms) return -EINVAL; lux = *value; - return prior.read(params["prior"]); + prior = params["prior"].get<ipa::Pwl>(ipa::Pwl{}); + return prior.empty() ? -EINVAL : 0; } -static int readCtCurve(Pwl &ctR, Pwl &ctB, const libcamera::YamlObject ¶ms) +static int readCtCurve(ipa::Pwl &ctR, ipa::Pwl &ctB, const libcamera::YamlObject ¶ms) { if (params.size() % 3) { LOG(RPiAwb, Error) << "AwbConfig: incomplete CT curve entry"; @@ -103,8 +107,8 @@ int AwbConfig::read(const libcamera::YamlObject ¶ms) if (ret) return ret; /* We will want the inverse functions of these too. */ - ctRInverse = ctR.inverse(); - ctBInverse = ctB.inverse(); + ctRInverse = ctR.inverse().first; + ctBInverse = ctB.inverse().first; } if (params.contains("priors")) { @@ -121,7 +125,7 @@ int AwbConfig::read(const libcamera::YamlObject ¶ms) } if (priors.empty()) { LOG(RPiAwb, Error) << "AwbConfig: no AWB priors configured"; - return ret; + return -EINVAL; } } if (params.contains("modes")) { @@ -161,11 +165,18 @@ int AwbConfig::read(const libcamera::YamlObject ¶ms) bayes = false; } } - fast = params[fast].get<int>(bayes); /* default to fast for Bayesian, otherwise slow */ whitepointR = params["whitepoint_r"].get<double>(0.0); whitepointB = params["whitepoint_b"].get<double>(0.0); if (bayes == false) sensitivityR = sensitivityB = 1.0; /* nor do sensitivities make any sense */ + /* + * The biasProportion parameter adds a small proportion of the counted + * pixles to a region biased to the biasCT colour temperature. + * + * A typical value for biasProportion would be between 0.05 to 0.1. + */ + biasProportion = params["bias_proportion"].get<double>(0.0); + biasCT = params["bias_ct"].get<double>(kDefaultCT); return 0; } @@ -207,19 +218,25 @@ void Awb::initialise() * them. */ if (!config_.ctR.empty() && !config_.ctB.empty()) { - syncResults_.temperatureK = config_.ctR.domain().clip(4000); + syncResults_.temperatureK = config_.ctR.domain().clamp(4000); syncResults_.gainR = 1.0 / config_.ctR.eval(syncResults_.temperatureK); syncResults_.gainG = 1.0; syncResults_.gainB = 1.0 / config_.ctB.eval(syncResults_.temperatureK); } else { /* random values just to stop the world blowing up */ - syncResults_.temperatureK = 4500; + syncResults_.temperatureK = kDefaultCT; syncResults_.gainR = syncResults_.gainG = syncResults_.gainB = 1.0; } prevSyncResults_ = syncResults_; asyncResults_ = syncResults_; } +void Awb::initialValues(double &gainR, double &gainB) +{ + gainR = syncResults_.gainR; + gainB = syncResults_.gainB; +} + void Awb::disableAuto() { /* Freeze the most recent values, and treat them as manual gains */ @@ -267,14 +284,32 @@ void Awb::setManualGains(double manualR, double manualB) syncResults_.gainB = prevSyncResults_.gainB = manualB_; if (config_.bayes) { /* Also estimate the best corresponding colour temperature from the curves. */ - double ctR = config_.ctRInverse.eval(config_.ctRInverse.domain().clip(1 / manualR_)); - double ctB = config_.ctBInverse.eval(config_.ctBInverse.domain().clip(1 / manualB_)); + double ctR = config_.ctRInverse.eval(config_.ctRInverse.domain().clamp(1 / manualR_)); + double ctB = config_.ctBInverse.eval(config_.ctBInverse.domain().clamp(1 / manualB_)); prevSyncResults_.temperatureK = (ctR + ctB) / 2; syncResults_.temperatureK = prevSyncResults_.temperatureK; } } } +void Awb::setColourTemperature(double temperatureK) +{ + if (!config_.bayes) { + LOG(RPiAwb, Warning) << "AWB uncalibrated - cannot set colour temperature"; + return; + } + + temperatureK = config_.ctR.domain().clamp(temperatureK); + manualR_ = 1 / config_.ctR.eval(temperatureK); + manualB_ = 1 / config_.ctB.eval(temperatureK); + + syncResults_.temperatureK = temperatureK; + syncResults_.gainR = manualR_; + syncResults_.gainG = 1.0; + syncResults_.gainB = manualB_; + prevSyncResults_ = syncResults_; +} + void Awb::switchMode([[maybe_unused]] CameraMode const &cameraMode, Metadata *metadata) { @@ -400,7 +435,8 @@ void Awb::asyncFunc() static void generateStats(std::vector<Awb::RGB> &zones, StatisticsPtr &stats, double minPixels, - double minG, Metadata &globalMetadata) + double minG, Metadata &globalMetadata, + double biasProportion, double biasCtR, double biasCtB) { std::scoped_lock<RPiController::Metadata> l(globalMetadata); @@ -413,6 +449,14 @@ static void generateStats(std::vector<Awb::RGB> &zones, continue; zone.R = region.val.rSum / region.counted; zone.B = region.val.bSum / region.counted; + /* + * Add some bias samples to allow the search to tend to a + * bias CT in failure cases. + */ + const unsigned int proportion = biasProportion * region.counted; + zone.R += proportion * biasCtR; + zone.B += proportion * biasCtB; + zone.G += proportion * 1.0; /* Factor in the ALSC applied colour shading correction if required. */ const AlscStatus *alscStatus = globalMetadata.getLocked<AlscStatus>("alsc.status"); if (stats->colourStatsPos == Statistics::ColourStatsPos::PreLsc && alscStatus) { @@ -432,8 +476,11 @@ void Awb::prepareStats() * LSC has already been applied to the stats in this pipeline, so stop * any LSC compensation. We also ignore config_.fast in this version. */ + const double biasCtR = config_.bayes ? config_.ctR.eval(config_.biasCT) : 0; + const double biasCtB = config_.bayes ? config_.ctB.eval(config_.biasCT) : 0; generateStats(zones_, statistics_, config_.minPixels, - config_.minG, getGlobalMetadata()); + config_.minG, getGlobalMetadata(), + config_.biasProportion, biasCtR, biasCtB); /* * apply sensitivities, so values appear to come from our "canonical" * sensor. @@ -462,7 +509,7 @@ double Awb::computeDelta2Sum(double gainR, double gainB) return delta2Sum; } -Pwl Awb::interpolatePrior() +ipa::Pwl Awb::interpolatePrior() { /* * Interpolate the prior log likelihood function for our current lux @@ -479,7 +526,7 @@ Pwl Awb::interpolatePrior() idx++; double lux0 = config_.priors[idx].lux, lux1 = config_.priors[idx + 1].lux; - return Pwl::combine(config_.priors[idx].prior, + return ipa::Pwl::combine(config_.priors[idx].prior, config_.priors[idx + 1].prior, [&](double /*x*/, double y0, double y1) { return y0 + (y1 - y0) * @@ -488,26 +535,26 @@ Pwl Awb::interpolatePrior() } } -static double interpolateQuadatric(Pwl::Point const &a, Pwl::Point const &b, - Pwl::Point const &c) +static double interpolateQuadatric(ipa::Pwl::Point const &a, ipa::Pwl::Point const &b, + ipa::Pwl::Point const &c) { /* * Given 3 points on a curve, find the extremum of the function in that * interval by fitting a quadratic. */ const double eps = 1e-3; - Pwl::Point ca = c - a, ba = b - a; - double denominator = 2 * (ba.y * ca.x - ca.y * ba.x); - if (abs(denominator) > eps) { - double numerator = ba.y * ca.x * ca.x - ca.y * ba.x * ba.x; - double result = numerator / denominator + a.x; - return std::max(a.x, std::min(c.x, result)); + ipa::Pwl::Point ca = c - a, ba = b - a; + double denominator = 2 * (ba.y() * ca.x() - ca.y() * ba.x()); + if (std::abs(denominator) > eps) { + double numerator = ba.y() * ca.x() * ca.x() - ca.y() * ba.x() * ba.x(); + double result = numerator / denominator + a.x(); + return std::max(a.x(), std::min(c.x(), result)); } /* has degenerated to straight line segment */ - return a.y < c.y - eps ? a.x : (c.y < a.y - eps ? c.x : b.x); + return a.y() < c.y() - eps ? a.x() : (c.y() < a.y() - eps ? c.x() : b.x()); } -double Awb::coarseSearch(Pwl const &prior) +double Awb::coarseSearch(ipa::Pwl const &prior) { points_.clear(); /* assume doesn't deallocate memory */ size_t bestPoint = 0; @@ -519,22 +566,22 @@ double Awb::coarseSearch(Pwl const &prior) double b = config_.ctB.eval(t, &spanB); double gainR = 1 / r, gainB = 1 / b; double delta2Sum = computeDelta2Sum(gainR, gainB); - double priorLogLikelihood = prior.eval(prior.domain().clip(t)); + double priorLogLikelihood = prior.eval(prior.domain().clamp(t)); double finalLogLikelihood = delta2Sum - priorLogLikelihood; LOG(RPiAwb, Debug) << "t: " << t << " gain R " << gainR << " gain B " << gainB << " delta2_sum " << delta2Sum << " prior " << priorLogLikelihood << " final " << finalLogLikelihood; - points_.push_back(Pwl::Point(t, finalLogLikelihood)); - if (points_.back().y < points_[bestPoint].y) + points_.push_back(ipa::Pwl::Point({ t, finalLogLikelihood })); + if (points_.back().y() < points_[bestPoint].y()) bestPoint = points_.size() - 1; if (t == mode_->ctHi) break; /* for even steps along the r/b curve scale them by the current t */ t = std::min(t + t / 10 * config_.coarseStep, mode_->ctHi); } - t = points_[bestPoint].x; + t = points_[bestPoint].x(); LOG(RPiAwb, Debug) << "Coarse search found CT " << t; /* * We have the best point of the search, but refine it with a quadratic @@ -553,7 +600,7 @@ double Awb::coarseSearch(Pwl const &prior) return t; } -void Awb::fineSearch(double &t, double &r, double &b, Pwl const &prior) +void Awb::fineSearch(double &t, double &r, double &b, ipa::Pwl const &prior) { int spanR = -1, spanB = -1; config_.ctR.eval(t, &spanR); @@ -564,14 +611,14 @@ void Awb::fineSearch(double &t, double &r, double &b, Pwl const &prior) config_.ctR.eval(t - nsteps * step, &spanR); double bDiff = config_.ctB.eval(t + nsteps * step, &spanB) - config_.ctB.eval(t - nsteps * step, &spanB); - Pwl::Point transverse(bDiff, -rDiff); - if (transverse.len2() < 1e-6) + ipa::Pwl::Point transverse({ bDiff, -rDiff }); + if (transverse.length2() < 1e-6) return; /* * unit vector orthogonal to the b vs. r function (pointing outwards * with r and b increasing) */ - transverse = transverse / transverse.len(); + transverse = transverse / transverse.length(); double bestLogLikelihood = 0, bestT = 0, bestR = 0, bestB = 0; double transverseRange = config_.transverseNeg + config_.transversePos; const int maxNumDeltas = 12; @@ -586,26 +633,26 @@ void Awb::fineSearch(double &t, double &r, double &b, Pwl const &prior) for (int i = -nsteps; i <= nsteps; i++) { double tTest = t + i * step; double priorLogLikelihood = - prior.eval(prior.domain().clip(tTest)); + prior.eval(prior.domain().clamp(tTest)); double rCurve = config_.ctR.eval(tTest, &spanR); double bCurve = config_.ctB.eval(tTest, &spanB); /* x will be distance off the curve, y the log likelihood there */ - Pwl::Point points[maxNumDeltas]; + ipa::Pwl::Point points[maxNumDeltas]; int bestPoint = 0; /* Take some measurements transversely *off* the CT curve. */ for (int j = 0; j < numDeltas; j++) { - points[j].x = -config_.transverseNeg + - (transverseRange * j) / (numDeltas - 1); - Pwl::Point rbTest = Pwl::Point(rCurve, bCurve) + - transverse * points[j].x; - double rTest = rbTest.x, bTest = rbTest.y; + points[j][0] = -config_.transverseNeg + + (transverseRange * j) / (numDeltas - 1); + ipa::Pwl::Point rbTest = ipa::Pwl::Point({ rCurve, bCurve }) + + transverse * points[j].x(); + double rTest = rbTest.x(), bTest = rbTest.y(); double gainR = 1 / rTest, gainB = 1 / bTest; double delta2Sum = computeDelta2Sum(gainR, gainB); - points[j].y = delta2Sum - priorLogLikelihood; + points[j][1] = delta2Sum - priorLogLikelihood; LOG(RPiAwb, Debug) << "At t " << tTest << " r " << rTest << " b " - << bTest << ": " << points[j].y; - if (points[j].y < points[bestPoint].y) + << bTest << ": " << points[j].y(); + if (points[j].y() < points[bestPoint].y()) bestPoint = j; } /* @@ -613,11 +660,11 @@ void Awb::fineSearch(double &t, double &r, double &b, Pwl const &prior) * now let's do a quadratic interpolation for the best result. */ bestPoint = std::max(1, std::min(bestPoint, numDeltas - 2)); - Pwl::Point rbTest = Pwl::Point(rCurve, bCurve) + - transverse * interpolateQuadatric(points[bestPoint - 1], - points[bestPoint], - points[bestPoint + 1]); - double rTest = rbTest.x, bTest = rbTest.y; + ipa::Pwl::Point rbTest = ipa::Pwl::Point({ rCurve, bCurve }) + + transverse * interpolateQuadatric(points[bestPoint - 1], + points[bestPoint], + points[bestPoint + 1]); + double rTest = rbTest.x(), bTest = rbTest.y(); double gainR = 1 / rTest, gainB = 1 / bTest; double delta2Sum = computeDelta2Sum(gainR, gainB); double finalLogLikelihood = delta2Sum - priorLogLikelihood; @@ -647,7 +694,7 @@ void Awb::awbBayes() * Get the current prior, and scale according to how many zones are * valid... not entirely sure about this. */ - Pwl prior = interpolatePrior(); + ipa::Pwl prior = interpolatePrior(); prior *= zones_.size() / (double)(statistics_->awbRegions.numRegions()); prior.map([](double x, double y) { LOG(RPiAwb, Debug) << "(" << x << "," << y << ")"; @@ -709,7 +756,11 @@ void Awb::awbGrey() sumR += *ri, sumB += *bi; double gainR = sumR.G / (sumR.R + 1), gainB = sumB.G / (sumB.B + 1); - asyncResults_.temperatureK = 4500; /* don't know what it is */ + /* + * The grey world model can't estimate the colour temperature, use a + * default value. + */ + asyncResults_.temperatureK = kDefaultCT; asyncResults_.gainR = gainR; asyncResults_.gainG = 1.0; asyncResults_.gainB = gainB; diff --git a/src/ipa/rpi/controller/rpi/awb.h b/src/ipa/rpi/controller/rpi/awb.h index e7d49cd8..2fb91254 100644 --- a/src/ipa/rpi/controller/rpi/awb.h +++ b/src/ipa/rpi/controller/rpi/awb.h @@ -2,7 +2,7 @@ /* * Copyright (C) 2019, Raspberry Pi Ltd * - * awb.h - AWB control algorithm + * AWB control algorithm */ #pragma once @@ -10,11 +10,14 @@ #include <condition_variable> #include <thread> +#include <libcamera/geometry.h> + #include "../awb_algorithm.h" -#include "../pwl.h" #include "../awb_status.h" #include "../statistics.h" +#include "libipa/pwl.h" + namespace RPiController { /* Control algorithm to perform AWB calculations. */ @@ -28,7 +31,7 @@ struct AwbMode { struct AwbPrior { int read(const libcamera::YamlObject ¶ms); double lux; /* lux level */ - Pwl prior; /* maps CT to prior log likelihood for this lux level */ + libcamera::ipa::Pwl prior; /* maps CT to prior log likelihood for this lux level */ }; struct AwbConfig { @@ -40,11 +43,10 @@ struct AwbConfig { uint16_t startupFrames; unsigned int convergenceFrames; /* approx number of frames to converge */ double speed; /* IIR filter speed applied to algorithm results */ - bool fast; /* "fast" mode uses a 16x16 rather than 32x32 grid */ - Pwl ctR; /* function maps CT to r (= R/G) */ - Pwl ctB; /* function maps CT to b (= B/G) */ - Pwl ctRInverse; /* inverse of ctR */ - Pwl ctBInverse; /* inverse of ctB */ + libcamera::ipa::Pwl ctR; /* function maps CT to r (= R/G) */ + libcamera::ipa::Pwl ctB; /* function maps CT to b (= B/G) */ + libcamera::ipa::Pwl ctRInverse; /* inverse of ctR */ + libcamera::ipa::Pwl ctBInverse; /* inverse of ctB */ /* table of illuminant priors at different lux levels */ std::vector<AwbPrior> priors; /* AWB "modes" (determines the search range) */ @@ -84,6 +86,10 @@ struct AwbConfig { double whitepointR; double whitepointB; bool bayes; /* use Bayesian algorithm */ + /* proportion of counted samples to add for the search bias */ + double biasProportion; + /* CT target for the search bias */ + double biasCT; }; class Awb : public AwbAlgorithm @@ -95,8 +101,10 @@ public: void initialise() override; int read(const libcamera::YamlObject ¶ms) override; unsigned int getConvergenceFrames() const override; + void initialValues(double &gainR, double &gainB) override; void setMode(std::string const &name) override; void setManualGains(double manualR, double manualB) override; + void setColourTemperature(double temperatureK) override; void enableAuto() override; void disableAuto() override; void switchMode(CameraMode const &cameraMode, Metadata *metadata) override; @@ -160,11 +168,11 @@ private: void awbGrey(); void prepareStats(); double computeDelta2Sum(double gainR, double gainB); - Pwl interpolatePrior(); - double coarseSearch(Pwl const &prior); - void fineSearch(double &t, double &r, double &b, Pwl const &prior); + libcamera::ipa::Pwl interpolatePrior(); + double coarseSearch(libcamera::ipa::Pwl const &prior); + void fineSearch(double &t, double &r, double &b, libcamera::ipa::Pwl const &prior); std::vector<RGB> zones_; - std::vector<Pwl::Point> points_; + std::vector<libcamera::ipa::Pwl::Point> points_; /* manual r setting */ double manualR_; /* manual b setting */ diff --git a/src/ipa/rpi/controller/rpi/black_level.cpp b/src/ipa/rpi/controller/rpi/black_level.cpp index 85baec3f..4c968f14 100644 --- a/src/ipa/rpi/controller/rpi/black_level.cpp +++ b/src/ipa/rpi/controller/rpi/black_level.cpp @@ -2,10 +2,9 @@ /* * Copyright (C) 2019, Raspberry Pi Ltd * - * black_level.cpp - black level control algorithm + * black level control algorithm */ -#include <math.h> #include <stdint.h> #include <libcamera/base/log.h> @@ -22,7 +21,7 @@ LOG_DEFINE_CATEGORY(RPiBlackLevel) #define NAME "rpi.black_level" BlackLevel::BlackLevel(Controller *controller) - : Algorithm(controller) + : BlackLevelAlgorithm(controller) { } @@ -45,6 +44,14 @@ int BlackLevel::read(const libcamera::YamlObject ¶ms) return 0; } +void BlackLevel::initialValues(uint16_t &blackLevelR, uint16_t &blackLevelG, + uint16_t &blackLevelB) +{ + blackLevelR = blackLevelR_; + blackLevelG = blackLevelG_; + blackLevelB = blackLevelB_; +} + void BlackLevel::prepare(Metadata *imageMetadata) { /* diff --git a/src/ipa/rpi/controller/rpi/black_level.h b/src/ipa/rpi/controller/rpi/black_level.h index 2403f7f7..f50729db 100644 --- a/src/ipa/rpi/controller/rpi/black_level.h +++ b/src/ipa/rpi/controller/rpi/black_level.h @@ -2,23 +2,25 @@ /* * Copyright (C) 2019, Raspberry Pi Ltd * - * black_level.h - black level control algorithm + * black level control algorithm */ #pragma once -#include "../algorithm.h" +#include "../black_level_algorithm.h" #include "../black_level_status.h" /* This is our implementation of the "black level algorithm". */ namespace RPiController { -class BlackLevel : public Algorithm +class BlackLevel : public BlackLevelAlgorithm { public: BlackLevel(Controller *controller); char const *name() const override; int read(const libcamera::YamlObject ¶ms) override; + void initialValues(uint16_t &blackLevelR, uint16_t &blackLevelG, + uint16_t &blackLevelB) override; void prepare(Metadata *imageMetadata) override; private: diff --git a/src/ipa/rpi/controller/rpi/cac.cpp b/src/ipa/rpi/controller/rpi/cac.cpp index 7c123da1..17779ad5 100644 --- a/src/ipa/rpi/controller/rpi/cac.cpp +++ b/src/ipa/rpi/controller/rpi/cac.cpp @@ -2,7 +2,7 @@ /* * Copyright (C) 2023 Raspberry Pi Ltd * - * cac.cpp - Chromatic Aberration Correction algorithm + * Chromatic Aberration Correction algorithm */ #include "cac.h" @@ -27,40 +27,23 @@ char const *Cac::name() const return NAME; } -int Cac::read(const libcamera::YamlObject ¶ms) -{ - arrayToSet(params["lut_rx"], config_.lutRx); - arrayToSet(params["lut_ry"], config_.lutRy); - arrayToSet(params["lut_bx"], config_.lutBx); - arrayToSet(params["lut_by"], config_.lutBy); - cacStatus_.lutRx = config_.lutRx; - cacStatus_.lutRy = config_.lutRy; - cacStatus_.lutBx = config_.lutBx; - cacStatus_.lutBy = config_.lutBy; - double strength = params["strength"].get<double>(1); - setStrength(config_.lutRx, cacStatus_.lutRx, strength); - setStrength(config_.lutBx, cacStatus_.lutBx, strength); - setStrength(config_.lutRy, cacStatus_.lutRy, strength); - setStrength(config_.lutBy, cacStatus_.lutBy, strength); - return 0; -} - -void Cac::initialise() -{ -} - -void Cac::arrayToSet(const libcamera::YamlObject ¶ms, std::vector<double> &inputArray) +static bool arrayToSet(const libcamera::YamlObject ¶ms, std::vector<double> &inputArray, const Size &size) { int num = 0; - const Size &size = getHardwareConfig().cacRegions; - inputArray.resize((size.width + 1) * (size.height + 1)); + int max_num = (size.width + 1) * (size.height + 1); + inputArray.resize(max_num); + for (const auto &p : params.asList()) { + if (num == max_num) + return false; inputArray[num++] = p.get<double>(0); } + + return num == max_num; } -void Cac::setStrength(std::vector<double> &inputArray, std::vector<double> &outputArray, - double strengthFactor) +static void setStrength(std::vector<double> &inputArray, std::vector<double> &outputArray, + double strengthFactor) { int num = 0; for (const auto &p : inputArray) { @@ -68,9 +51,52 @@ void Cac::setStrength(std::vector<double> &inputArray, std::vector<double> &outp } } +int Cac::read(const libcamera::YamlObject ¶ms) +{ + config_.enabled = params.contains("lut_rx") && params.contains("lut_ry") && + params.contains("lut_bx") && params.contains("lut_by"); + if (!config_.enabled) + return 0; + + const Size &size = getHardwareConfig().cacRegions; + + if (!arrayToSet(params["lut_rx"], config_.lutRx, size)) { + LOG(RPiCac, Error) << "Bad CAC lut_rx table"; + return -EINVAL; + } + + if (!arrayToSet(params["lut_ry"], config_.lutRy, size)) { + LOG(RPiCac, Error) << "Bad CAC lut_ry table"; + return -EINVAL; + } + + if (!arrayToSet(params["lut_bx"], config_.lutBx, size)) { + LOG(RPiCac, Error) << "Bad CAC lut_bx table"; + return -EINVAL; + } + + if (!arrayToSet(params["lut_by"], config_.lutBy, size)) { + LOG(RPiCac, Error) << "Bad CAC lut_by table"; + return -EINVAL; + } + + double strength = params["strength"].get<double>(1); + cacStatus_.lutRx = config_.lutRx; + cacStatus_.lutRy = config_.lutRy; + cacStatus_.lutBx = config_.lutBx; + cacStatus_.lutBy = config_.lutBy; + setStrength(config_.lutRx, cacStatus_.lutRx, strength); + setStrength(config_.lutBx, cacStatus_.lutBx, strength); + setStrength(config_.lutRy, cacStatus_.lutRy, strength); + setStrength(config_.lutBy, cacStatus_.lutBy, strength); + + return 0; +} + void Cac::prepare(Metadata *imageMetadata) { - imageMetadata->set("cac.status", cacStatus_); + if (config_.enabled) + imageMetadata->set("cac.status", cacStatus_); } // Register algorithm with the system. diff --git a/src/ipa/rpi/controller/rpi/cac.h b/src/ipa/rpi/controller/rpi/cac.h index 419180ab..a7b14c00 100644 --- a/src/ipa/rpi/controller/rpi/cac.h +++ b/src/ipa/rpi/controller/rpi/cac.h @@ -12,6 +12,7 @@ namespace RPiController { struct CacConfig { + bool enabled; std::vector<double> lutRx; std::vector<double> lutRy; std::vector<double> lutBx; @@ -24,15 +25,11 @@ public: Cac(Controller *controller = NULL); char const *name() const override; int read(const libcamera::YamlObject ¶ms) override; - void initialise() override; void prepare(Metadata *imageMetadata) override; - void setStrength(std::vector<double> &inputArray, std::vector<double> &outputArray, - double strengthFactor); private: CacConfig config_; CacStatus cacStatus_; - void arrayToSet(const libcamera::YamlObject ¶ms, std::vector<double> &inputArray); }; } // namespace RPiController diff --git a/src/ipa/rpi/controller/rpi/ccm.cpp b/src/ipa/rpi/controller/rpi/ccm.cpp index 2e2e6664..8607f152 100644 --- a/src/ipa/rpi/controller/rpi/ccm.cpp +++ b/src/ipa/rpi/controller/rpi/ccm.cpp @@ -2,7 +2,7 @@ /* * Copyright (C) 2019, Raspberry Pi Ltd * - * ccm.cpp - CCM (colour correction matrix) control algorithm + * CCM (colour correction matrix) control algorithm */ #include <libcamera/base/log.h> @@ -29,34 +29,7 @@ LOG_DEFINE_CATEGORY(RPiCcm) #define NAME "rpi.ccm" -Matrix::Matrix() -{ - memset(m, 0, sizeof(m)); -} -Matrix::Matrix(double m0, double m1, double m2, double m3, double m4, double m5, - double m6, double m7, double m8) -{ - m[0][0] = m0, m[0][1] = m1, m[0][2] = m2, m[1][0] = m3, m[1][1] = m4, - m[1][2] = m5, m[2][0] = m6, m[2][1] = m7, m[2][2] = m8; -} -int Matrix::read(const libcamera::YamlObject ¶ms) -{ - double *ptr = (double *)m; - - if (params.size() != 9) { - LOG(RPiCcm, Error) << "Wrong number of values in CCM"; - return -EINVAL; - } - - for (const auto ¶m : params.asList()) { - auto value = param.get<double>(); - if (!value) - return -EINVAL; - *ptr++ = *value; - } - - return 0; -} +using Matrix3x3 = Matrix<double, 3, 3>; Ccm::Ccm(Controller *controller) : CcmAlgorithm(controller), saturation_(1.0) {} @@ -68,12 +41,10 @@ char const *Ccm::name() const int Ccm::read(const libcamera::YamlObject ¶ms) { - int ret; - if (params.contains("saturation")) { - ret = config_.saturation.read(params["saturation"]); - if (ret) - return ret; + config_.saturation = params["saturation"].get<ipa::Pwl>(ipa::Pwl{}); + if (config_.saturation.empty()) + return -EINVAL; } for (auto &p : params["ccms"].asList()) { @@ -83,9 +54,12 @@ int Ccm::read(const libcamera::YamlObject ¶ms) CtCcm ctCcm; ctCcm.ct = *value; - ret = ctCcm.ccm.read(p["ccm"]); - if (ret) - return ret; + + auto ccm = p["ccm"].get<Matrix3x3>(); + if (!ccm) + return -EINVAL; + + ctCcm.ccm = *ccm; if (!config_.ccms.empty() && ctCcm.ct <= config_.ccms.back().ct) { LOG(RPiCcm, Error) @@ -113,8 +87,10 @@ void Ccm::initialise() { } +namespace { + template<typename T> -static bool getLocked(Metadata *metadata, std::string const &tag, T &value) +bool getLocked(Metadata *metadata, std::string const &tag, T &value) { T *ptr = metadata->getLocked<T>(tag); if (ptr == nullptr) @@ -123,7 +99,7 @@ static bool getLocked(Metadata *metadata, std::string const &tag, T &value) return true; } -Matrix calculateCcm(std::vector<CtCcm> const &ccms, double ct) +Matrix3x3 calculateCcm(std::vector<CtCcm> const &ccms, double ct) { if (ct <= ccms.front().ct) return ccms.front().ccm; @@ -139,16 +115,25 @@ Matrix calculateCcm(std::vector<CtCcm> const &ccms, double ct) } } -Matrix applySaturation(Matrix const &ccm, double saturation) +Matrix3x3 applySaturation(Matrix3x3 const &ccm, double saturation) { - Matrix RGB2Y(0.299, 0.587, 0.114, -0.169, -0.331, 0.500, 0.500, -0.419, - -0.081); - Matrix Y2RGB(1.000, 0.000, 1.402, 1.000, -0.345, -0.714, 1.000, 1.771, - 0.000); - Matrix S(1, 0, 0, 0, saturation, 0, 0, 0, saturation); + static const Matrix3x3 RGB2Y({ 0.299, 0.587, 0.114, + -0.169, -0.331, 0.500, + 0.500, -0.419, -0.081 }); + + static const Matrix3x3 Y2RGB({ 1.000, 0.000, 1.402, + 1.000, -0.345, -0.714, + 1.000, 1.771, 0.000 }); + + Matrix3x3 S({ 1, 0, 0, + 0, saturation, 0, + 0, 0, saturation }); + return Y2RGB * S * RGB2Y * ccm; } +} /* namespace */ + void Ccm::prepare(Metadata *imageMetadata) { bool awbOk = false, luxOk = false; @@ -166,18 +151,18 @@ void Ccm::prepare(Metadata *imageMetadata) LOG(RPiCcm, Warning) << "no colour temperature found"; if (!luxOk) LOG(RPiCcm, Warning) << "no lux value found"; - Matrix ccm = calculateCcm(config_.ccms, awb.temperatureK); + Matrix3x3 ccm = calculateCcm(config_.ccms, awb.temperatureK); double saturation = saturation_; struct CcmStatus ccmStatus; ccmStatus.saturation = saturation; if (!config_.saturation.empty()) saturation *= config_.saturation.eval( - config_.saturation.domain().clip(lux.lux)); + config_.saturation.domain().clamp(lux.lux)); ccm = applySaturation(ccm, saturation); for (int j = 0; j < 3; j++) for (int i = 0; i < 3; i++) ccmStatus.matrix[j * 3 + i] = - std::max(-8.0, std::min(7.9999, ccm.m[j][i])); + std::max(-8.0, std::min(7.9999, ccm[j][i])); LOG(RPiCcm, Debug) << "colour temperature " << awb.temperatureK << "K"; LOG(RPiCcm, Debug) diff --git a/src/ipa/rpi/controller/rpi/ccm.h b/src/ipa/rpi/controller/rpi/ccm.h index 286d0b33..c05dbb17 100644 --- a/src/ipa/rpi/controller/rpi/ccm.h +++ b/src/ipa/rpi/controller/rpi/ccm.h @@ -2,59 +2,29 @@ /* * Copyright (C) 2019, Raspberry Pi Ltd * - * ccm.h - CCM (colour correction matrix) control algorithm + * CCM (colour correction matrix) control algorithm */ #pragma once #include <vector> +#include "libcamera/internal/matrix.h" +#include <libipa/pwl.h> + #include "../ccm_algorithm.h" -#include "../pwl.h" namespace RPiController { /* Algorithm to calculate colour matrix. Should be placed after AWB. */ -struct Matrix { - Matrix(double m0, double m1, double m2, double m3, double m4, double m5, - double m6, double m7, double m8); - Matrix(); - double m[3][3]; - int read(const libcamera::YamlObject ¶ms); -}; -static inline Matrix operator*(double d, Matrix const &m) -{ - return Matrix(m.m[0][0] * d, m.m[0][1] * d, m.m[0][2] * d, - m.m[1][0] * d, m.m[1][1] * d, m.m[1][2] * d, - m.m[2][0] * d, m.m[2][1] * d, m.m[2][2] * d); -} -static inline Matrix operator*(Matrix const &m1, Matrix const &m2) -{ - Matrix m; - for (int i = 0; i < 3; i++) - for (int j = 0; j < 3; j++) - m.m[i][j] = m1.m[i][0] * m2.m[0][j] + - m1.m[i][1] * m2.m[1][j] + - m1.m[i][2] * m2.m[2][j]; - return m; -} -static inline Matrix operator+(Matrix const &m1, Matrix const &m2) -{ - Matrix m; - for (int i = 0; i < 3; i++) - for (int j = 0; j < 3; j++) - m.m[i][j] = m1.m[i][j] + m2.m[i][j]; - return m; -} - struct CtCcm { double ct; - Matrix ccm; + libcamera::Matrix<double, 3, 3> ccm; }; struct CcmConfig { std::vector<CtCcm> ccms; - Pwl saturation; + libcamera::ipa::Pwl saturation; }; class Ccm : public CcmAlgorithm diff --git a/src/ipa/rpi/controller/rpi/contrast.cpp b/src/ipa/rpi/controller/rpi/contrast.cpp index 4e038a02..fe866a54 100644 --- a/src/ipa/rpi/controller/rpi/contrast.cpp +++ b/src/ipa/rpi/controller/rpi/contrast.cpp @@ -2,7 +2,7 @@ /* * Copyright (C) 2019, Raspberry Pi Ltd * - * contrast.cpp - contrast (gamma) control algorithm + * contrast (gamma) control algorithm */ #include <stdint.h> @@ -53,7 +53,9 @@ int Contrast::read(const libcamera::YamlObject ¶ms) config_.hiHistogram = params["hi_histogram"].get<double>(0.95); config_.hiLevel = params["hi_level"].get<double>(0.95); config_.hiMax = params["hi_max"].get<double>(2000); - return config_.gammaCurve.read(params["gamma_curve"]); + + config_.gammaCurve = params["gamma_curve"].get<ipa::Pwl>(ipa::Pwl{}); + return config_.gammaCurve.empty() ? -EINVAL : 0; } void Contrast::setBrightness(double brightness) @@ -92,10 +94,12 @@ void Contrast::prepare(Metadata *imageMetadata) imageMetadata->set("contrast.status", status_); } -Pwl computeStretchCurve(Histogram const &histogram, +namespace { + +ipa::Pwl computeStretchCurve(Histogram const &histogram, ContrastConfig const &config) { - Pwl enhance; + ipa::Pwl enhance; enhance.append(0, 0); /* * If the start of the histogram is rather empty, try to pull it down a @@ -136,10 +140,10 @@ Pwl computeStretchCurve(Histogram const &histogram, return enhance; } -Pwl applyManualContrast(Pwl const &gammaCurve, double brightness, - double contrast) +ipa::Pwl applyManualContrast(ipa::Pwl const &gammaCurve, double brightness, + double contrast) { - Pwl newGammaCurve; + ipa::Pwl newGammaCurve; LOG(RPiContrast, Debug) << "Manual brightness " << brightness << " contrast " << contrast; gammaCurve.map([&](double x, double y) { @@ -151,6 +155,8 @@ Pwl applyManualContrast(Pwl const &gammaCurve, double brightness, return newGammaCurve; } +} /* namespace */ + void Contrast::process(StatisticsPtr &stats, [[maybe_unused]] Metadata *imageMetadata) { @@ -160,7 +166,7 @@ void Contrast::process(StatisticsPtr &stats, * ways: 1. Adjust the gamma curve so as to pull the start of the * histogram down, and possibly push the end up. */ - Pwl gammaCurve = config_.gammaCurve; + ipa::Pwl gammaCurve = config_.gammaCurve; if (ceEnable_) { if (config_.loMax != 0 || config_.hiMax != 0) gammaCurve = computeStretchCurve(histogram, config_).compose(gammaCurve); diff --git a/src/ipa/rpi/controller/rpi/contrast.h b/src/ipa/rpi/controller/rpi/contrast.h index 59aa70dc..c0f7db98 100644 --- a/src/ipa/rpi/controller/rpi/contrast.h +++ b/src/ipa/rpi/controller/rpi/contrast.h @@ -2,14 +2,15 @@ /* * Copyright (C) 2019, Raspberry Pi Ltd * - * contrast.h - contrast (gamma) control algorithm + * contrast (gamma) control algorithm */ #pragma once #include <mutex> +#include <libipa/pwl.h> + #include "../contrast_algorithm.h" -#include "../pwl.h" namespace RPiController { @@ -26,7 +27,7 @@ struct ContrastConfig { double hiHistogram; double hiLevel; double hiMax; - Pwl gammaCurve; + libcamera::ipa::Pwl gammaCurve; }; class Contrast : public ContrastAlgorithm diff --git a/src/ipa/rpi/controller/rpi/denoise.cpp b/src/ipa/rpi/controller/rpi/denoise.cpp index 154ee604..ba851658 100644 --- a/src/ipa/rpi/controller/rpi/denoise.cpp +++ b/src/ipa/rpi/controller/rpi/denoise.cpp @@ -2,7 +2,7 @@ /* * Copyright (C) 2022 Raspberry Pi Ltd * - * Denoise.cpp - Denoise (spatial, colour, temporal) control algorithm + * Denoise (spatial, colour, temporal) control algorithm */ #include "denoise.h" diff --git a/src/ipa/rpi/controller/rpi/dpc.cpp b/src/ipa/rpi/controller/rpi/dpc.cpp index be3871df..8aac03f7 100644 --- a/src/ipa/rpi/controller/rpi/dpc.cpp +++ b/src/ipa/rpi/controller/rpi/dpc.cpp @@ -2,7 +2,7 @@ /* * Copyright (C) 2019, Raspberry Pi Ltd * - * dpc.cpp - DPC (defective pixel correction) control algorithm + * DPC (defective pixel correction) control algorithm */ #include <libcamera/base/log.h> diff --git a/src/ipa/rpi/controller/rpi/dpc.h b/src/ipa/rpi/controller/rpi/dpc.h index 84a05604..9cefb06d 100644 --- a/src/ipa/rpi/controller/rpi/dpc.h +++ b/src/ipa/rpi/controller/rpi/dpc.h @@ -2,7 +2,7 @@ /* * Copyright (C) 2019, Raspberry Pi Ltd * - * dpc.h - DPC (defective pixel correction) control algorithm + * DPC (defective pixel correction) control algorithm */ #pragma once diff --git a/src/ipa/rpi/controller/rpi/focus.h b/src/ipa/rpi/controller/rpi/focus.h index 8556039d..ee014be9 100644 --- a/src/ipa/rpi/controller/rpi/focus.h +++ b/src/ipa/rpi/controller/rpi/focus.h @@ -2,7 +2,7 @@ /* * Copyright (C) 2020, Raspberry Pi Ltd * - * focus.h - focus algorithm + * focus algorithm */ #pragma once diff --git a/src/ipa/rpi/controller/rpi/geq.cpp b/src/ipa/rpi/controller/rpi/geq.cpp index 510870e9..40e7191b 100644 --- a/src/ipa/rpi/controller/rpi/geq.cpp +++ b/src/ipa/rpi/controller/rpi/geq.cpp @@ -2,14 +2,13 @@ /* * Copyright (C) 2019, Raspberry Pi Ltd * - * geq.cpp - GEQ (green equalisation) control algorithm + * GEQ (green equalisation) control algorithm */ #include <libcamera/base/log.h> #include "../device_status.h" #include "../lux_status.h" -#include "../pwl.h" #include "geq.h" @@ -45,9 +44,9 @@ int Geq::read(const libcamera::YamlObject ¶ms) } if (params.contains("strength")) { - int ret = config_.strength.read(params["strength"]); - if (ret) - return ret; + config_.strength = params["strength"].get<ipa::Pwl>(ipa::Pwl{}); + if (config_.strength.empty()) + return -EINVAL; } return 0; @@ -67,7 +66,7 @@ void Geq::prepare(Metadata *imageMetadata) GeqStatus geqStatus = {}; double strength = config_.strength.empty() ? 1.0 - : config_.strength.eval(config_.strength.domain().clip(luxStatus.lux)); + : config_.strength.eval(config_.strength.domain().clamp(luxStatus.lux)); strength *= deviceStatus.analogueGain; double offset = config_.offset * strength; double slope = config_.slope * strength; diff --git a/src/ipa/rpi/controller/rpi/geq.h b/src/ipa/rpi/controller/rpi/geq.h index ee3a52ff..e8b9f427 100644 --- a/src/ipa/rpi/controller/rpi/geq.h +++ b/src/ipa/rpi/controller/rpi/geq.h @@ -2,10 +2,12 @@ /* * Copyright (C) 2019, Raspberry Pi Ltd * - * geq.h - GEQ (green equalisation) control algorithm + * GEQ (green equalisation) control algorithm */ #pragma once +#include <libipa/pwl.h> + #include "../algorithm.h" #include "../geq_status.h" @@ -16,7 +18,7 @@ namespace RPiController { struct GeqConfig { uint16_t offset; double slope; - Pwl strength; /* lux to strength factor */ + libcamera::ipa::Pwl strength; /* lux to strength factor */ }; class Geq : public Algorithm diff --git a/src/ipa/rpi/controller/rpi/hdr.cpp b/src/ipa/rpi/controller/rpi/hdr.cpp index fb580548..f3da8291 100644 --- a/src/ipa/rpi/controller/rpi/hdr.cpp +++ b/src/ipa/rpi/controller/rpi/hdr.cpp @@ -2,11 +2,13 @@ /* * Copyright (C) 2023 Raspberry Pi Ltd * - * hdr.cpp - HDR control algorithm + * HDR control algorithm */ #include "hdr.h" +#include <cmath> + #include <libcamera/base/log.h> #include "../agc_status.h" @@ -39,25 +41,52 @@ void HdrConfig::read(const libcamera::YamlObject ¶ms, const std::string &mod channelMap[v.get<unsigned int>().value()] = k; /* Lens shading related parameters. */ - if (params.contains("spatial_gain")) { - spatialGain.read(params["spatial_gain"]); - diffusion = params["diffusion"].get<unsigned int>(3); - /* Clip to an arbitrary limit just to stop typos from killing the system! */ - const unsigned int MAX_DIFFUSION = 15; - if (diffusion > MAX_DIFFUSION) { - diffusion = MAX_DIFFUSION; - LOG(RPiHdr, Warning) << "Diffusion value clipped to " << MAX_DIFFUSION; - } + if (params.contains("spatial_gain_curve")) { + spatialGainCurve = params["spatial_gain_curve"].get<ipa::Pwl>(ipa::Pwl{}); + } else if (params.contains("spatial_gain")) { + double spatialGain = params["spatial_gain"].get<double>(2.0); + spatialGainCurve.append(0.0, spatialGain); + spatialGainCurve.append(0.01, spatialGain); + spatialGainCurve.append(0.06, 1.0); /* maybe make this programmable? */ + spatialGainCurve.append(1.0, 1.0); + } + + diffusion = params["diffusion"].get<unsigned int>(3); + /* Clip to an arbitrary limit just to stop typos from killing the system! */ + const unsigned int MAX_DIFFUSION = 15; + if (diffusion > MAX_DIFFUSION) { + diffusion = MAX_DIFFUSION; + LOG(RPiHdr, Warning) << "Diffusion value clipped to " << MAX_DIFFUSION; } /* Read any tonemap parameters. */ tonemapEnable = params["tonemap_enable"].get<int>(0); - detailConstant = params["detail_constant"].get<uint16_t>(50); - detailSlope = params["detail_slope"].get<double>(8.0); + detailConstant = params["detail_constant"].get<uint16_t>(0); + detailSlope = params["detail_slope"].get<double>(0.0); iirStrength = params["iir_strength"].get<double>(8.0); strength = params["strength"].get<double>(1.5); if (tonemapEnable) - tonemap.read(params["tonemap"]); + tonemap = params["tonemap"].get<ipa::Pwl>(ipa::Pwl{}); + speed = params["speed"].get<double>(1.0); + if (params.contains("hi_quantile_targets")) { + hiQuantileTargets = params["hi_quantile_targets"].getList<double>().value(); + if (hiQuantileTargets.empty() || hiQuantileTargets.size() % 2) + LOG(RPiHdr, Fatal) << "hi_quantile_targets much be even and non-empty"; + } else + hiQuantileTargets = { 0.95, 0.65, 0.5, 0.28, 0.3, 0.25 }; + hiQuantileMaxGain = params["hi_quantile_max_gain"].get<double>(1.6); + if (params.contains("quantile_targets")) { + quantileTargets = params["quantile_targets"].getList<double>().value(); + if (quantileTargets.empty() || quantileTargets.size() % 2) + LOG(RPiHdr, Fatal) << "quantile_targets much be even and non-empty"; + } else + quantileTargets = { 0.2, 0.03, 1.0, 0.15 }; + powerMin = params["power_min"].get<double>(0.65); + powerMax = params["power_max"].get<double>(1.0); + if (params.contains("contrast_adjustments")) { + contrastAdjustments = params["contrast_adjustments"].getList<double>().value(); + } else + contrastAdjustments = { 0.5, 0.75 }; /* Read any stitch parameters. */ stitchEnable = params["stitch_enable"].get<int>(0); @@ -159,7 +188,7 @@ void Hdr::prepare(Metadata *imageMetadata) } HdrConfig &config = it->second; - if (config.spatialGain.empty()) + if (config.spatialGainCurve.empty()) return; AlscStatus alscStatus{}; /* some compilers seem to require the braces */ @@ -183,7 +212,7 @@ bool Hdr::updateTonemap([[maybe_unused]] StatisticsPtr &stats, HdrConfig &config /* When there's a change of HDR mode we start over with a new tonemap curve. */ if (delayedStatus_.mode != previousMode_) { previousMode_ = delayedStatus_.mode; - tonemap_ = Pwl(); + tonemap_ = ipa::Pwl(); } /* No tonemapping. No need to output a tonemap.status. */ @@ -205,10 +234,61 @@ bool Hdr::updateTonemap([[maybe_unused]] StatisticsPtr &stats, HdrConfig &config return true; /* - * If we wanted to build or adjust tonemaps dynamically, this would be the place - * to do it. But for now we seem to be getting by without. + * Create a tonemap dynamically. We have three ingredients. + * + * 1. We have a list of "hi quantiles" and "targets". We use these to judge if + * the image does seem to be reasonably saturated. If it isn't, we calculate + * a gain that we will feed as a linear factor into the tonemap generation. + * This prevents unsaturated images from beoming quite so "flat". + * + * 2. We have a list of quantile/target pairs for the bottom of the histogram. + * We use these to calculate how much gain we must apply to the bottom of the + * tonemap. We apply this gain as a power curve so as not to blow out the top + * end. + * + * 3. Finally, when we generate the tonemap, we have some contrast adjustments + * for the bottom because we know that power curves can start quite steeply and + * cause a washed-out look. */ + /* Compute the linear gain from the headroom for saturation at the top. */ + double gain = 10; /* arbitrary, but hiQuantileMaxGain will clamp it later */ + for (unsigned int i = 0; i < config.hiQuantileTargets.size(); i += 2) { + double quantile = config.hiQuantileTargets[i]; + double target = config.hiQuantileTargets[i + 1]; + double value = stats->yHist.interQuantileMean(quantile, 1.0) / 1024.0; + double newGain = target / (value + 0.01); + gain = std::min(gain, newGain); + } + gain = std::clamp(gain, 1.0, config.hiQuantileMaxGain); + + /* Compute the power curve from the amount of gain needed at the bottom. */ + double min_power = 2; /* arbitrary, but config.powerMax will clamp it later */ + for (unsigned int i = 0; i < config.quantileTargets.size(); i += 2) { + double quantile = config.quantileTargets[i]; + double target = config.quantileTargets[i + 1]; + double value = stats->yHist.interQuantileMean(0, quantile) / 1024.0; + value = std::min(value * gain, 1.0); + double power = log(target + 1e-6) / log(value + 1e-6); + min_power = std::min(min_power, power); + } + double power = std::clamp(min_power, config.powerMin, config.powerMax); + + /* Generate the tonemap, including the contrast adjustment factors. */ + libcamera::ipa::Pwl tonemap; + tonemap.append(0, 0); + for (unsigned int i = 0; i <= 6; i++) { + double x = 1 << (i + 9); /* x loops from 512 to 32768 inclusive */ + double y = pow(std::min(x * gain, 65535.0) / 65536.0, power) * 65536; + if (i < config.contrastAdjustments.size()) + y *= config.contrastAdjustments[i]; + if (!tonemap_.empty()) + y = y * config.speed + tonemap_.eval(x) * (1 - config.speed); + tonemap.append(x, y); + } + tonemap.append(65535, 65535); + tonemap_ = tonemap; + return true; } @@ -255,7 +335,7 @@ static void averageGains(std::vector<double> &src, std::vector<double> &dst, con void Hdr::updateGains(StatisticsPtr &stats, HdrConfig &config) { - if (config.spatialGain.empty()) + if (config.spatialGainCurve.empty()) return; /* When alternating exposures, only compute these gains for the short frame. */ @@ -270,7 +350,7 @@ void Hdr::updateGains(StatisticsPtr &stats, HdrConfig &config) double g = region.val.gSum / counted; double b = region.val.bSum / counted; double brightness = std::max({ r, g, b }) / 65535; - gains_[0][i] = config.spatialGain.eval(brightness); + gains_[0][i] = config.spatialGainCurve.eval(brightness); } /* Ping-pong between the two gains_ buffers. */ diff --git a/src/ipa/rpi/controller/rpi/hdr.h b/src/ipa/rpi/controller/rpi/hdr.h index 980aa3d1..5c2f3988 100644 --- a/src/ipa/rpi/controller/rpi/hdr.h +++ b/src/ipa/rpi/controller/rpi/hdr.h @@ -2,7 +2,7 @@ /* * Copyright (C) 2023, Raspberry Pi Ltd * - * hdr.h - HDR control algorithm + * HDR control algorithm */ #pragma once @@ -12,9 +12,10 @@ #include <libcamera/geometry.h> +#include <libipa/pwl.h> + #include "../hdr_algorithm.h" #include "../hdr_status.h" -#include "../pwl.h" /* This is our implementation of an HDR algorithm. */ @@ -26,7 +27,7 @@ struct HdrConfig { std::map<unsigned int, std::string> channelMap; /* Lens shading related parameters. */ - Pwl spatialGain; /* Brightness to gain curve for different image regions. */ + libcamera::ipa::Pwl spatialGainCurve; /* Brightness to gain curve for different image regions. */ unsigned int diffusion; /* How much to diffuse the gain spatially. */ /* Tonemap related parameters. */ @@ -35,7 +36,15 @@ struct HdrConfig { double detailSlope; double iirStrength; double strength; - Pwl tonemap; + libcamera::ipa::Pwl tonemap; + /* These relate to adaptive tonemap calculation. */ + double speed; + std::vector<double> hiQuantileTargets; /* quantiles to check for unsaturated images */ + double hiQuantileMaxGain; /* the max gain we'll apply when unsaturated */ + std::vector<double> quantileTargets; /* target values for histogram quantiles */ + double powerMin; /* minimum tonemap power */ + double powerMax; /* maximum tonemap power */ + std::vector<double> contrastAdjustments; /* any contrast adjustment factors */ /* Stitch related parameters. */ bool stitchEnable; @@ -67,7 +76,7 @@ private: HdrStatus status_; /* track the current HDR mode and channel */ HdrStatus delayedStatus_; /* track the delayed HDR mode and channel */ std::string previousMode_; - Pwl tonemap_; + libcamera::ipa::Pwl tonemap_; libcamera::Size regions_; /* stats regions */ unsigned int numRegions_; /* total number of stats regions */ std::vector<double> gains_[2]; diff --git a/src/ipa/rpi/controller/rpi/lux.cpp b/src/ipa/rpi/controller/rpi/lux.cpp index 06625f3a..27b89a8f 100644 --- a/src/ipa/rpi/controller/rpi/lux.cpp +++ b/src/ipa/rpi/controller/rpi/lux.cpp @@ -2,9 +2,8 @@ /* * Copyright (C) 2019, Raspberry Pi Ltd * - * lux.cpp - Lux control algorithm + * Lux control algorithm */ -#include <math.h> #include <libcamera/base/log.h> @@ -41,7 +40,7 @@ int Lux::read(const libcamera::YamlObject ¶ms) auto value = params["reference_shutter_speed"].get<double>(); if (!value) return -EINVAL; - referenceShutterSpeed_ = *value * 1.0us; + referenceExposureTime_ = *value * 1.0us; value = params["reference_gain"].get<double>(); if (!value) @@ -83,11 +82,11 @@ void Lux::process(StatisticsPtr &stats, Metadata *imageMetadata) double currentAperture = deviceStatus.aperture.value_or(currentAperture_); double currentY = stats->yHist.interQuantileMean(0, 1); double gainRatio = referenceGain_ / currentGain; - double shutterSpeedRatio = - referenceShutterSpeed_ / deviceStatus.shutterSpeed; + double exposureTimeRatio = + referenceExposureTime_ / deviceStatus.exposureTime; double apertureRatio = referenceAperture_ / currentAperture; double yRatio = currentY * (65536 / stats->yHist.bins()) / referenceY_; - double estimatedLux = shutterSpeedRatio * gainRatio * + double estimatedLux = exposureTimeRatio * gainRatio * apertureRatio * apertureRatio * yRatio * referenceLux_; LuxStatus status; diff --git a/src/ipa/rpi/controller/rpi/lux.h b/src/ipa/rpi/controller/rpi/lux.h index 89411a54..da007fe9 100644 --- a/src/ipa/rpi/controller/rpi/lux.h +++ b/src/ipa/rpi/controller/rpi/lux.h @@ -2,7 +2,7 @@ /* * Copyright (C) 2019, Raspberry Pi Ltd * - * lux.h - Lux control algorithm + * Lux control algorithm */ #pragma once @@ -32,7 +32,7 @@ private: * These values define the conditions of the reference image, against * which we compare the new image. */ - libcamera::utils::Duration referenceShutterSpeed_; + libcamera::utils::Duration referenceExposureTime_; double referenceGain_; double referenceAperture_; /* units of 1/f */ double referenceY_; /* out of 65536 */ diff --git a/src/ipa/rpi/controller/rpi/noise.cpp b/src/ipa/rpi/controller/rpi/noise.cpp index bcd8b9ed..145175fb 100644 --- a/src/ipa/rpi/controller/rpi/noise.cpp +++ b/src/ipa/rpi/controller/rpi/noise.cpp @@ -2,10 +2,10 @@ /* * Copyright (C) 2019, Raspberry Pi Ltd * - * noise.cpp - Noise control algorithm + * Noise control algorithm */ -#include <math.h> +#include <cmath> #include <libcamera/base/log.h> @@ -69,7 +69,7 @@ void Noise::prepare(Metadata *imageMetadata) * make some adjustments based on the camera mode (such as * binning), if we knew how to discover it... */ - double factor = sqrt(deviceStatus.analogueGain) / modeFactor_; + double factor = std::sqrt(deviceStatus.analogueGain) / modeFactor_; struct NoiseStatus status; status.noiseConstant = referenceConstant_ * factor; status.noiseSlope = referenceSlope_ * factor; diff --git a/src/ipa/rpi/controller/rpi/noise.h b/src/ipa/rpi/controller/rpi/noise.h index 74c31e64..6deae1f0 100644 --- a/src/ipa/rpi/controller/rpi/noise.h +++ b/src/ipa/rpi/controller/rpi/noise.h @@ -2,7 +2,7 @@ /* * Copyright (C) 2019, Raspberry Pi Ltd * - * noise.h - Noise control algorithm + * Noise control algorithm */ #pragma once diff --git a/src/ipa/rpi/controller/rpi/saturation.cpp b/src/ipa/rpi/controller/rpi/saturation.cpp index 813540e5..b83c5887 100644 --- a/src/ipa/rpi/controller/rpi/saturation.cpp +++ b/src/ipa/rpi/controller/rpi/saturation.cpp @@ -2,7 +2,7 @@ /* * Copyright (C) 2022 Raspberry Pi Ltd * - * saturation.cpp - Saturation control algorithm + * Saturation control algorithm */ #include "saturation.h" diff --git a/src/ipa/rpi/controller/rpi/sdn.cpp b/src/ipa/rpi/controller/rpi/sdn.cpp index 6743919e..619178a8 100644 --- a/src/ipa/rpi/controller/rpi/sdn.cpp +++ b/src/ipa/rpi/controller/rpi/sdn.cpp @@ -2,10 +2,11 @@ /* * Copyright (C) 2019-2021, Raspberry Pi Ltd * - * sdn.cpp - SDN (spatial denoise) control algorithm + * SDN (spatial denoise) control algorithm */ #include <libcamera/base/log.h> +#include <libcamera/base/utils.h> #include "../denoise_status.h" #include "../noise_status.h" @@ -60,7 +61,7 @@ void Sdn::prepare(Metadata *imageMetadata) status.noiseConstant = noiseStatus.noiseConstant * deviation_; status.noiseSlope = noiseStatus.noiseSlope * deviation_; status.strength = strength_; - status.mode = static_cast<std::underlying_type_t<DenoiseMode>>(mode_); + status.mode = utils::to_underlying(mode_); imageMetadata->set("denoise.status", status); LOG(RPiSdn, Debug) << "programmed constant " << status.noiseConstant diff --git a/src/ipa/rpi/controller/rpi/sdn.h b/src/ipa/rpi/controller/rpi/sdn.h index 9dd73c38..cb226de8 100644 --- a/src/ipa/rpi/controller/rpi/sdn.h +++ b/src/ipa/rpi/controller/rpi/sdn.h @@ -2,7 +2,7 @@ /* * Copyright (C) 2019, Raspberry Pi Ltd * - * sdn.h - SDN (spatial denoise) control algorithm + * SDN (spatial denoise) control algorithm */ #pragma once diff --git a/src/ipa/rpi/controller/rpi/sharpen.cpp b/src/ipa/rpi/controller/rpi/sharpen.cpp index 4f6f020a..1d143ff5 100644 --- a/src/ipa/rpi/controller/rpi/sharpen.cpp +++ b/src/ipa/rpi/controller/rpi/sharpen.cpp @@ -2,10 +2,10 @@ /* * Copyright (C) 2019, Raspberry Pi Ltd * - * sharpen.cpp - sharpening control algorithm + * sharpening control algorithm */ -#include <math.h> +#include <cmath> #include <libcamera/base/log.h> @@ -68,7 +68,7 @@ void Sharpen::prepare(Metadata *imageMetadata) * we adjust the limit and threshold less aggressively. Using a sqrt * function is an arbitrary but gentle way of accomplishing this. */ - double userStrengthSqrt = sqrt(userStrength_); + double userStrengthSqrt = std::sqrt(userStrength_); struct SharpenStatus status; /* * Binned modes seem to need the sharpening toned down with this diff --git a/src/ipa/rpi/controller/rpi/sharpen.h b/src/ipa/rpi/controller/rpi/sharpen.h index 8bb7631e..96ccd609 100644 --- a/src/ipa/rpi/controller/rpi/sharpen.h +++ b/src/ipa/rpi/controller/rpi/sharpen.h @@ -2,7 +2,7 @@ /* * Copyright (C) 2019, Raspberry Pi Ltd * - * sharpen.h - sharpening control algorithm + * sharpening control algorithm */ #pragma once diff --git a/src/ipa/rpi/controller/rpi/tonemap.cpp b/src/ipa/rpi/controller/rpi/tonemap.cpp index 5f8b2bf2..3422adfe 100644 --- a/src/ipa/rpi/controller/rpi/tonemap.cpp +++ b/src/ipa/rpi/controller/rpi/tonemap.cpp @@ -2,7 +2,7 @@ /* * Copyright (C) 2022 Raspberry Pi Ltd * - * tonemap.cpp - Tonemap control algorithm + * Tonemap control algorithm */ #include "tonemap.h" @@ -33,7 +33,7 @@ int Tonemap::read(const libcamera::YamlObject ¶ms) config_.detailSlope = params["detail_slope"].get<double>(0.1); config_.iirStrength = params["iir_strength"].get<double>(1.0); config_.strength = params["strength"].get<double>(1.0); - config_.tonemap.read(params["tone_curve"]); + config_.tonemap = params["tone_curve"].get<ipa::Pwl>(ipa::Pwl{}); return 0; } diff --git a/src/ipa/rpi/controller/rpi/tonemap.h b/src/ipa/rpi/controller/rpi/tonemap.h index f25aa47f..ba0cf5c4 100644 --- a/src/ipa/rpi/controller/rpi/tonemap.h +++ b/src/ipa/rpi/controller/rpi/tonemap.h @@ -6,8 +6,9 @@ */ #pragma once +#include <libipa/pwl.h> + #include "algorithm.h" -#include "pwl.h" namespace RPiController { @@ -16,7 +17,7 @@ struct TonemapConfig { double detailSlope; double iirStrength; double strength; - Pwl tonemap; + libcamera::ipa::Pwl tonemap; }; class Tonemap : public Algorithm diff --git a/src/ipa/rpi/controller/saturation_status.h b/src/ipa/rpi/controller/saturation_status.h index 337b66a3..c7fadc99 100644 --- a/src/ipa/rpi/controller/saturation_status.h +++ b/src/ipa/rpi/controller/saturation_status.h @@ -2,7 +2,7 @@ /* * Copyright (C) 2022 Raspberry Pi Ltd * - * saturation_status.h - Saturation control algorithm status + * Saturation control algorithm status */ #pragma once diff --git a/src/ipa/rpi/controller/sharpen_algorithm.h b/src/ipa/rpi/controller/sharpen_algorithm.h index 3be21c32..abd82cb2 100644 --- a/src/ipa/rpi/controller/sharpen_algorithm.h +++ b/src/ipa/rpi/controller/sharpen_algorithm.h @@ -2,7 +2,7 @@ /* * Copyright (C) 2020, Raspberry Pi Ltd * - * sharpen_algorithm.h - sharpness control algorithm interface + * sharpness control algorithm interface */ #pragma once diff --git a/src/ipa/rpi/controller/sharpen_status.h b/src/ipa/rpi/controller/sharpen_status.h index 106166db..74910199 100644 --- a/src/ipa/rpi/controller/sharpen_status.h +++ b/src/ipa/rpi/controller/sharpen_status.h @@ -2,7 +2,7 @@ /* * Copyright (C) 2019, Raspberry Pi Ltd * - * sharpen_status.h - Sharpen control algorithm status + * Sharpen control algorithm status */ #pragma once diff --git a/src/ipa/rpi/controller/statistics.h b/src/ipa/rpi/controller/statistics.h index 015d4efc..cbd81161 100644 --- a/src/ipa/rpi/controller/statistics.h +++ b/src/ipa/rpi/controller/statistics.h @@ -2,7 +2,7 @@ /* * Copyright (C) 2022, Raspberry Pi Ltd * - * statistics.h - Raspberry Pi generic statistics structure + * Raspberry Pi generic statistics structure */ #pragma once diff --git a/src/ipa/rpi/controller/stitch_status.h b/src/ipa/rpi/controller/stitch_status.h index b17800ed..7812f3e3 100644 --- a/src/ipa/rpi/controller/stitch_status.h +++ b/src/ipa/rpi/controller/stitch_status.h @@ -2,7 +2,7 @@ /* * Copyright (C) 2023 Raspberry Pi Ltd * - * stitch_status.h - stitch control algorithm status + * stitch control algorithm status */ #pragma once diff --git a/src/ipa/rpi/controller/tonemap_status.h b/src/ipa/rpi/controller/tonemap_status.h index 0e639946..0364ff66 100644 --- a/src/ipa/rpi/controller/tonemap_status.h +++ b/src/ipa/rpi/controller/tonemap_status.h @@ -2,16 +2,16 @@ /* * Copyright (C) 2022 Raspberry Pi Ltd * - * hdr.h - Tonemap control algorithm status + * Tonemap control algorithm status */ #pragma once -#include "pwl.h" +#include <libipa/pwl.h> struct TonemapStatus { uint16_t detailConstant; double detailSlope; double iirStrength; double strength; - RPiController::Pwl tonemap; + libcamera::ipa::Pwl tonemap; }; diff --git a/src/ipa/rpi/pisp/data/imx219.json b/src/ipa/rpi/pisp/data/imx219.json new file mode 100644 index 00000000..5254e60d --- /dev/null +++ b/src/ipa/rpi/pisp/data/imx219.json @@ -0,0 +1,1187 @@ +{ + "version": 2.0, + "target": "pisp", + "algorithms": [ + { + "rpi.black_level": + { + "black_level": 4096 + } + }, + { + "rpi.lux": + { + "reference_shutter_speed": 21965, + "reference_gain": 1.0, + "reference_aperture": 1.0, + "reference_lux": 800, + "reference_Y": 11460 + } + }, + { + "rpi.dpc": + { + "strength": 1 + } + }, + { + "rpi.noise": + { + "reference_constant": 0, + "reference_slope": 3.661 + } + }, + { + "rpi.geq": + { + "offset": 239, + "slope": 0.00766 + } + }, + { + "rpi.denoise": + { + "normal": + { + "sdn": + { + "deviation": 1.6, + "strength": 0.5, + "deviation2": 3.2, + "deviation_no_tdn": 3.2, + "strength_no_tdn": 0.75 + }, + "cdn": + { + "deviation": 200, + "strength": 0.3 + }, + "tdn": + { + "deviation": 0.8, + "threshold": 0.05 + } + }, + "hdr": + { + "sdn": + { + "deviation": 1.6, + "strength": 0.5, + "deviation2": 3.2, + "deviation_no_tdn": 3.2, + "strength_no_tdn": 0.75 + }, + "cdn": + { + "deviation": 200, + "strength": 0.3 + }, + "tdn": + { + "deviation": 1.3, + "threshold": 0.1 + } + }, + "night": + { + "sdn": + { + "deviation": 1.6, + "strength": 0.5, + "deviation2": 3.2, + "deviation_no_tdn": 3.2, + "strength_no_tdn": 0.75 + }, + "cdn": + { + "deviation": 200, + "strength": 0.3 + }, + "tdn": + { + "deviation": 1.3, + "threshold": 0.1 + } + } + } + }, + { + "rpi.awb": + { + "priors": [ + { + "lux": 0, + "prior": + [ + 2000, 1.0, + 3000, 0.0, + 13000, 0.0 + ] + }, + { + "lux": 800, + "prior": + [ + 2000, 0.0, + 6000, 2.0, + 13000, 2.0 + ] + }, + { + "lux": 1500, + "prior": + [ + 2000, 0.0, + 4000, 1.0, + 6000, 6.0, + 6500, 7.0, + 7000, 1.0, + 13000, 1.0 + ] + } + ], + "modes": + { + "auto": + { + "lo": 2500, + "hi": 7700 + }, + "incandescent": + { + "lo": 2500, + "hi": 3000 + }, + "tungsten": + { + "lo": 3000, + "hi": 3500 + }, + "fluorescent": + { + "lo": 4000, + "hi": 4700 + }, + "indoor": + { + "lo": 3000, + "hi": 5000 + }, + "daylight": + { + "lo": 5500, + "hi": 6500 + }, + "cloudy": + { + "lo": 7000, + "hi": 8000 + } + }, + "bayes": 1, + "ct_curve": + [ + 2860.0, 0.9514, 0.4156, + 2960.0, 0.9289, 0.4372, + 3603.0, 0.8305, 0.5251, + 4650.0, 0.6756, 0.6433, + 5858.0, 0.6193, 0.6807, + 7580.0, 0.5019, 0.7495 + ], + "sensitivity_r": 1.0, + "sensitivity_b": 1.0, + "transverse_pos": 0.03392, + "transverse_neg": 0.034 + } + }, + { + "rpi.agc": + { + "channels": [ + { + "comment": "Channel 0 is normal AGC", + "metering_modes": + { + "centre-weighted": + { + "weights": + [ + 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, + 0, 1, 1, 1, 1, 1, 2, 2, 2, 1, 1, 1, 1, 1, 0, + 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, + 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, + 1, 1, 2, 2, 2, 2, 3, 3, 3, 2, 2, 2, 2, 1, 1, + 1, 1, 2, 2, 2, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, + 1, 1, 2, 2, 3, 3, 3, 4, 3, 3, 3, 2, 2, 1, 1, + 1, 1, 2, 2, 3, 3, 4, 4, 4, 3, 3, 2, 2, 1, 1, + 1, 1, 2, 2, 3, 3, 3, 4, 3, 3, 3, 2, 2, 1, 1, + 1, 1, 2, 2, 2, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, + 1, 1, 2, 2, 2, 2, 3, 3, 3, 2, 2, 2, 2, 1, 1, + 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, + 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, + 0, 1, 1, 1, 1, 1, 2, 2, 2, 1, 1, 1, 1, 1, 0, + 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0 + ] + }, + "spot": + { + "weights": + [ + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 1, 2, 1, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 1, 2, 3, 2, 1, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 1, 2, 1, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 + ] + }, + "matrix": + { + "weights": + [ + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 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"SingleExposure": + { + "cadence": [ 1 ], + "channel_map": + { + "short": 1 + }, + "spatial_gain": 2.0, + "power_min": 0.7, + "tonemap_enable": 1 + }, + "MultiExposure": + { + "cadence": [ 1, 2 ], + "channel_map": + { + "short": 1, + "long": 2 + }, + "stitch_enable": 1, + "spatial_gain": 2.0, + "power_min": 0.7, + "tonemap_enable": 1 + }, + "Night": + { + "cadence": [ 3 ], + "channel_map": + { + "short": 3 + }, + "tonemap_enable": 1, + "tonemap": + [ + 0, 0, + 5000, 20000, + 10000, 30000, + 20000, 47000, + 30000, 55000, + 65535, 65535 + ] + } + } + } + ] +}
\ No newline at end of file diff --git a/src/ipa/rpi/pisp/data/meson.build b/src/ipa/rpi/pisp/data/meson.build new file mode 100644 index 00000000..6b8b4e94 --- /dev/null +++ b/src/ipa/rpi/pisp/data/meson.build @@ -0,0 +1,30 @@ +# SPDX-License-Identifier: CC0-1.0 + +conf_files = files([ + 'imx219.json', + 'imx219_noir.json', + 'imx283.json', + 'imx290.json', + 'imx296.json', + 'imx296_mono.json', + 'imx378.json', + 'imx415.json', + 'imx462.json', + 'imx477.json', + 'imx477_noir.json', + 'imx477_scientific.json', + 'imx519.json', + 'imx708.json', + 'imx708_noir.json', + 'imx708_wide.json', + 'imx708_wide_noir.json', + 'ov5647.json', + 'ov5647_noir.json', + 'ov64a40.json', + 'ov9281_mono.json', + 'se327m12.json', + 'uncalibrated.json', +]) + +install_data(conf_files, + install_dir : ipa_data_dir / 'rpi' / 'pisp') diff --git a/src/ipa/rpi/pisp/data/ov5647.json b/src/ipa/rpi/pisp/data/ov5647.json new file mode 100644 index 00000000..d5156767 --- /dev/null +++ b/src/ipa/rpi/pisp/data/ov5647.json @@ -0,0 +1,1186 @@ +{ + "version": 2.0, + "target": "pisp", + "algorithms": [ + { + "rpi.black_level": + { + "black_level": 1024 + } + }, + { + "rpi.lux": + { + "reference_shutter_speed": 29381, + "reference_gain": 1.0, + "reference_aperture": 1.0, + "reference_lux": 870, + "reference_Y": 12388 + } + }, + { + "rpi.dpc": + { + "strength": 1 + } + }, + { + "rpi.noise": + { + "reference_constant": 0, + "reference_slope": 4.371 + } + }, + { + "rpi.geq": + { + "offset": 280, + "slope": 0.02153 + } + }, + { + "rpi.denoise": + { + "normal": + { + "sdn": + { + "deviation": 1.6, + "strength": 0.5, + "deviation2": 3.2, + "deviation_no_tdn": 3.2, + "strength_no_tdn": 0.75 + }, + "cdn": + { + "deviation": 200, + "strength": 0.3 + }, + "tdn": + { + "deviation": 0.8, + "threshold": 0.05 + } + }, + "hdr": + { + "sdn": + { + "deviation": 1.6, + "strength": 0.5, + "deviation2": 3.2, + "deviation_no_tdn": 3.2, + "strength_no_tdn": 0.75 + }, + "cdn": + { + "deviation": 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1.58803, -0.09912, -0.48891, + -0.42594, 2.22303, -0.79709, + -0.00621, -0.90516, 1.91137 + ] + } + ] + } + }, + { + "rpi.sharpen": + { + "threshold": 2.0, + "strength": 0.5, + "limit": 0.5 + } + } + ] +}
\ No newline at end of file diff --git a/src/ipa/rpi/pisp/data/uncalibrated.json b/src/ipa/rpi/pisp/data/uncalibrated.json new file mode 100644 index 00000000..ff1e316e --- /dev/null +++ b/src/ipa/rpi/pisp/data/uncalibrated.json @@ -0,0 +1,135 @@ +{ + "version": 2.0, + "target": "pisp", + "algorithms": [ + { + "rpi.black_level": + { + "black_level": 4096 + } + }, + { + "rpi.awb": + { + "use_derivatives": 0, + "bayes": 0 + } + }, + { + "rpi.agc": + { + "metering_modes": + { + "centre-weighted": + { + "weights": + [ + 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, + 0, 1, 1, 1, 1, 1, 2, 2, 2, 1, 1, 1, 1, 1, 0, + 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, + 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, + 1, 1, 2, 2, 2, 2, 3, 3, 3, 2, 2, 2, 2, 1, 1, + 1, 1, 2, 2, 2, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, + 1, 1, 2, 2, 3, 3, 3, 4, 3, 3, 3, 2, 2, 1, 1, + 1, 1, 2, 2, 3, 3, 4, 4, 4, 3, 3, 2, 2, 1, 1, + 1, 1, 2, 2, 3, 3, 3, 4, 3, 3, 3, 2, 2, 1, 1, + 1, 1, 2, 2, 2, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, + 1, 1, 2, 2, 2, 2, 3, 3, 3, 2, 2, 2, 2, 1, 1, + 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, + 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, + 0, 1, 1, 1, 1, 1, 2, 2, 2, 1, 1, 1, 1, 1, 0, + 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0 + ] + } + }, + "exposure_modes": + { + "normal": + { + "shutter": [ 100, 15000, 30000, 60000, 120000 ], + "gain": [ 1.0, 2.0, 3.0, 4.0, 6.0 ] + } + }, + "constraint_modes": + { + "normal": [ + { + "bound": "LOWER", + "q_lo": 0.98, + "q_hi": 1.0, + "y_target": + [ + 0, 0.4, + 1000, 0.4 + ] + } + ] + }, + "y_target": + [ + 0, 0.16, + 1000, 0.165, + 10000, 0.17 + ] + } + }, + { + "rpi.ccm": + { + "ccms": [ + { + "ct": 4000, + "ccm": + [ + 2.0, -1.0, 0.0, + -0.5, 2.0, -0.5, + 0, -1.0, 2.0 + ] + } + ] + } + }, + { + "rpi.contrast": + { + "ce_enable": 0, + "gamma_curve": + [ + 0, 0, + 1024, 5040, + 2048, 9338, + 3072, 12356, + 4096, 15312, + 5120, 18051, + 6144, 20790, + 7168, 23193, + 8192, 25744, + 9216, 27942, + 10240, 30035, + 11264, 32005, + 12288, 33975, + 13312, 35815, + 14336, 37600, + 15360, 39168, + 16384, 40642, + 18432, 43379, + 20480, 45749, + 22528, 47753, + 24576, 49621, + 26624, 51253, + 28672, 52698, + 30720, 53796, + 32768, 54876, + 36864, 57012, + 40960, 58656, + 45056, 59954, + 49152, 61183, + 53248, 62355, + 57344, 63419, + 61440, 64476, + 65535, 65535 + ] + } + } + ] +}
\ No newline at end of file diff --git a/src/ipa/rpi/pisp/meson.build b/src/ipa/rpi/pisp/meson.build new file mode 100644 index 00000000..878e3492 --- /dev/null +++ b/src/ipa/rpi/pisp/meson.build @@ -0,0 +1,49 @@ +# SPDX-License-Identifier: CC0-1.0 + +ipa_name = 'ipa_rpi_pisp' + +pisp_ipa_deps = [ + libcamera_private, + libatomic, + libpisp_dep, +] + +pisp_ipa_libs = [ + rpi_ipa_cam_helper_lib, + rpi_ipa_common_lib, + rpi_ipa_controller_lib +] + +pisp_ipa_includes = [ + ipa_includes, + libipa_includes, +] + +pisp_ipa_sources = files([ + 'pisp.cpp', +]) + +pisp_ipa_includes += include_directories('..') + +mod = shared_module(ipa_name, pisp_ipa_sources, + name_prefix : '', + include_directories : pisp_ipa_includes, + dependencies : pisp_ipa_deps, + link_with : libipa, + link_whole : pisp_ipa_libs, + install : true, + cpp_args : '-Wno-address-of-packed-member', + install_dir : ipa_install_dir) + +if ipa_sign_module + custom_target(ipa_name + '.so.sign', + input : mod, + output : ipa_name + '.so.sign', + command : [ipa_sign, ipa_priv_key, '@INPUT@', '@OUTPUT@'], + install : false, + build_by_default : true) +endif + +subdir('data') + +ipa_names += ipa_name diff --git a/src/ipa/rpi/pisp/pisp.cpp b/src/ipa/rpi/pisp/pisp.cpp new file mode 100644 index 00000000..bb50a9e0 --- /dev/null +++ b/src/ipa/rpi/pisp/pisp.cpp @@ -0,0 +1,1068 @@ +/* SPDX-License-Identifier: BSD-2-Clause */ +/* + * Copyright (C) 2023, Raspberry Pi Ltd + * + * pisp.cpp - Raspberry Pi PiSP IPA + */ +#include <algorithm> +#include <cmath> +#include <mutex> +#include <string> +#include <sys/mman.h> +#include <utility> +#include <vector> + +#include <libcamera/base/log.h> +#include <libcamera/control_ids.h> +#include <libcamera/ipa/ipa_module_info.h> +#include <libipa/pwl.h> + +#include "libpisp/backend/backend.hpp" +#include "libpisp/frontend/frontend.hpp" + +#include "common/ipa_base.h" +#include "controller/af_status.h" +#include "controller/agc_algorithm.h" +#include "controller/alsc_status.h" +#include "controller/awb_algorithm.h" +#include "controller/awb_status.h" +#include "controller/black_level_algorithm.h" +#include "controller/black_level_status.h" +#include "controller/cac_status.h" +#include "controller/ccm_status.h" +#include "controller/contrast_status.h" +#include "controller/denoise_algorithm.h" +#include "controller/denoise_status.h" +#include "controller/dpc_status.h" +#include "controller/geq_status.h" +#include "controller/hdr_status.h" +#include "controller/lux_status.h" +#include "controller/noise_status.h" +#include "controller/saturation_status.h" +#include "controller/sharpen_status.h" +#include "controller/stitch_status.h" +#include "controller/tonemap_status.h" + +using namespace std::literals::chrono_literals; + +namespace libcamera { + +LOG_DECLARE_CATEGORY(IPARPI) + +namespace { + +constexpr unsigned int NumLscCells = PISP_BE_LSC_GRID_SIZE; +constexpr unsigned int NumLscVertexes = NumLscCells + 1; + +inline int32_t clampField(double value, std::size_t fieldBits, std::size_t fracBits = 0, + bool isSigned = false, const char *desc = nullptr) +{ + ASSERT(fracBits <= fieldBits && fieldBits <= 32); + + int min = -(isSigned << (fieldBits - 1)); + int max = (1 << (fieldBits - isSigned)) - 1; + int32_t val = + std::clamp<int32_t>(std::round(value * (1 << fracBits)), min, max); + + if (desc && val / (1 << fracBits) != value) + LOG(IPARPI, Warning) + << desc << " rounded/clamped to " << val / (1 << fracBits); + + return val; +} + +int generateLut(const ipa::Pwl &pwl, uint32_t *lut, std::size_t lutSize, + unsigned int SlopeBits = 14, unsigned int PosBits = 16) +{ + if (pwl.empty()) + return -EINVAL; + + int lastY = 0; + for (unsigned int i = 0; i < lutSize; i++) { + int x, y; + if (i < 32) + x = i * 512; + else if (i < 48) + x = (i - 32) * 1024 + 16384; + else + x = std::min(65535u, (i - 48) * 2048 + 32768); + + y = pwl.eval(x); + if (y < 0 || (i && y < lastY)) { + LOG(IPARPI, Error) + << "Malformed PWL for Gamma, disabling!"; + return -1; + } + + if (i) { + unsigned int slope = y - lastY; + if (slope >= (1u << SlopeBits)) { + slope = (1u << SlopeBits) - 1; + LOG(IPARPI, Info) + << ("Maximum Gamma slope exceeded, adjusting!"); + y = lastY + slope; + } + lut[i - 1] |= slope << PosBits; + } + + lut[i] = y; + lastY = y; + } + + return 0; +} + +void packLscLut(uint32_t packed[NumLscVertexes][NumLscVertexes], + double const rgb[3][NumLscVertexes][NumLscVertexes]) +{ + for (unsigned int y = 0; y < NumLscVertexes; ++y) { + for (unsigned int x = 0; x < NumLscVertexes; ++x) { + /* Jointly encode RGB gains in one of 4 ranges: [0.5:1.5), [0:2), [0:4), [0:8) */ + double lo = std::min({ rgb[0][y][x], rgb[1][y][x], rgb[2][y][x] }); + double hi = std::max({ rgb[0][y][x], rgb[1][y][x], rgb[2][y][x] }); + uint32_t range; + double scale, offset; + if (lo >= 0.5 && hi < 1.5) { + range = 0; + scale = 1024.0; + offset = -511.5; + } else if (hi < 2.0) { + range = 1; + scale = 512.0; + offset = 0.5; + } else if (hi < 4.0) { + range = 2; + scale = 256.0; + offset = 0.5; + } else { + range = 3; + scale = 128.0; + offset = 0.5; + } + int r = clampField(offset + scale * rgb[0][y][x], 10); + int g = clampField(offset + scale * rgb[1][y][x], 10); + int b = clampField(offset + scale * rgb[2][y][x], 10); + packed[y][x] = (range << 30) | (b << 20) | (g << 10) | r; + } + } +} + +/* + * Resamples a srcW x srcH table with central sampling to destW x destH with + * corner sampling. + */ +void resampleTable(double *dest, int destW, int destH, double const *src, + int srcW, int srcH) +{ + /* + * Precalculate and cache the x sampling locations and phases to + * save recomputing them on every row. + */ + ASSERT(destW > 1 && destH > 1 && destW <= 64); + int xLo[64], xHi[64]; + double xf[64]; + double x = -0.5, xInc = srcW / (destW - 1); + for (int i = 0; i < destW; i++, x += xInc) { + xLo[i] = floor(x); + xf[i] = x - xLo[i]; + xHi[i] = xLo[i] < (srcW - 1) ? (xLo[i] + 1) : (srcW - 1); + xLo[i] = xLo[i] > 0 ? xLo[i] : 0; + } + + /* Now march over the output table generating the new values. */ + double y = -0.5, yInc = srcH / (destH - 1); + for (int j = 0; j < destH; j++, y += yInc) { + int yLo = floor(y); + double yf = y - yLo; + int yHi = yLo < (srcH - 1) ? (yLo + 1) : (srcH - 1); + yLo = yLo > 0 ? yLo : 0; + double const *rowAbove = src + yLo * srcW; + double const *rowBelow = src + yHi * srcW; + for (int i = 0; i < destW; i++) { + double above = rowAbove[xLo[i]] * (1 - xf[i]) + + rowAbove[xHi[i]] * xf[i]; + double below = rowBelow[xLo[i]] * (1 - xf[i]) + + rowBelow[xHi[i]] * xf[i]; + *(dest++) = above * (1 - yf) + below * yf; + } + } +} + +} /* namespace */ + +using ::libpisp::BackEnd; +using ::libpisp::FrontEnd; + +namespace ipa::RPi { + +class IpaPiSP final : public IpaBase +{ +public: + IpaPiSP() + : IpaBase(), fe_(nullptr), be_(nullptr) + { + } + + ~IpaPiSP() + { + if (fe_) + munmap(fe_, sizeof(FrontEnd)); + if (be_) + munmap(be_, sizeof(BackEnd)); + } + +private: + int32_t platformInit(const InitParams ¶ms, InitResult *result) override; + int32_t platformStart(const ControlList &controls, StartResult *result) override; + int32_t platformConfigure(const ConfigParams ¶ms, ConfigResult *result) override; + + void platformPrepareIsp(const PrepareParams ¶ms, + RPiController::Metadata &rpiMetadata) override; + RPiController::StatisticsPtr platformProcessStats(Span<uint8_t> mem) override; + + void handleControls(const ControlList &controls) override; + + void applyWBG(const AwbStatus *awbStatus, const AgcPrepareStatus *agcStatus, + pisp_be_global_config &global); + void applyDgOnly(const AgcPrepareStatus *agcPrepareStatus, pisp_be_global_config &global); + void applyCAC(const CacStatus *cacStatus, pisp_be_global_config &global); + void applyContrast(const ContrastStatus *contrastStatus, + pisp_be_global_config &global); + void applyCCM(const CcmStatus *ccmStatus, pisp_be_global_config &global); + void applyBlackLevel(const BlackLevelStatus *blackLevelStatus, + pisp_be_global_config &global); + void applyLensShading(const AlscStatus *alscStatus, + pisp_be_global_config &global); + void applyDPC(const DpcStatus *dpcStatus, pisp_be_global_config &global); + void applySdn(const SdnStatus *sdnStatus, pisp_be_global_config &global); + void applyTdn(const TdnStatus *tdnStatus, const DeviceStatus *deviceStatus, + pisp_be_global_config &global); + void applyCdn(const CdnStatus *cdnStatus, pisp_be_global_config &global); + void applyGeq(const GeqStatus *geqStatus, pisp_be_global_config &global); + void applySaturation(const SaturationStatus *geqStatus, + pisp_be_global_config &global); + void applySharpen(const SharpenStatus *sharpenStatus, + pisp_be_global_config &global); + bool applyStitch(const StitchStatus *stitchStatus, const DeviceStatus *deviceStatus, + const AgcStatus *agcStatus, pisp_be_global_config &global); + void applyTonemap(const TonemapStatus *tonemapStatus, + pisp_be_global_config &global); + void applyFocusStats(const NoiseStatus *noiseStatus); + void applyAF(const struct AfStatus *afStatus, ControlList &lensCtrls); + + void setDefaultConfig(); + void setStatsAndDebin(); + void setHistogramWeights(); + + /* Frontend/Backend objects passed in from the pipeline handler. */ + SharedFD feFD_; + SharedFD beFD_; + FrontEnd *fe_; + BackEnd *be_; + + /* TDN/HDR runtime need the following state. */ + bool tdnReset_; + utils::Duration lastExposure_; + std::map<std::string, utils::Duration> lastStitchExposures_; + HdrStatus lastStitchHdrStatus_; +}; + +int32_t IpaPiSP::platformInit(const InitParams ¶ms, + [[maybe_unused]] InitResult *result) +{ + const std::string &target = controller_.getTarget(); + if (target != "pisp") { + LOG(IPARPI, Error) + << "Tuning data file target returned \"" << target << "\"" + << ", expected \"pisp\""; + return -EINVAL; + } + + /* Acquire the Frontend and Backend objects. */ + feFD_ = std::move(params.fe); + beFD_ = std::move(params.be); + + if (!feFD_.isValid() || !beFD_.isValid()) { + LOG(IPARPI, Error) << "Invalid FE/BE handles!"; + return -ENODEV; + } + + fe_ = static_cast<FrontEnd *>(mmap(nullptr, sizeof(FrontEnd), + PROT_READ | PROT_WRITE, MAP_SHARED, + feFD_.get(), 0)); + be_ = static_cast<BackEnd *>(mmap(nullptr, sizeof(BackEnd), + PROT_READ | PROT_WRITE, MAP_SHARED, + beFD_.get(), 0)); + + if (!fe_ || !be_) { + LOG(IPARPI, Error) << "Unable to map FE/BE handles!"; + return -ENODEV; + } + + setDefaultConfig(); + + return 0; +} + +int32_t IpaPiSP::platformStart([[maybe_unused]] const ControlList &controls, + [[maybe_unused]] StartResult *result) +{ + tdnReset_ = true; + + /* Cause the stitch block to be reset correctly. */ + lastStitchHdrStatus_ = HdrStatus(); + + return 0; +} + +int32_t IpaPiSP::platformConfigure([[maybe_unused]] const ConfigParams ¶ms, + [[maybe_unused]] ConfigResult *result) +{ + setStatsAndDebin(); + return 0; +} + +void IpaPiSP::platformPrepareIsp([[maybe_unused]] const PrepareParams ¶ms, + RPiController::Metadata &rpiMetadata) +{ + std::scoped_lock<RPiController::Metadata> l(rpiMetadata); + + pisp_be_global_config global; + be_->GetGlobal(global); + + global.bayer_enables &= ~(PISP_BE_BAYER_ENABLE_BLC + PISP_BE_BAYER_ENABLE_WBG + + PISP_BE_BAYER_ENABLE_GEQ + PISP_BE_BAYER_ENABLE_LSC + + PISP_BE_BAYER_ENABLE_SDN + PISP_BE_BAYER_ENABLE_CDN + + PISP_BE_BAYER_ENABLE_TDN_OUTPUT + PISP_BE_BAYER_ENABLE_TDN_INPUT + + PISP_BE_BAYER_ENABLE_STITCH_INPUT + PISP_BE_BAYER_ENABLE_STITCH_OUTPUT + + PISP_BE_BAYER_ENABLE_STITCH + PISP_BE_BAYER_ENABLE_TONEMAP); + /* We leave the YCbCr and inverse conversion enabled in case of false colour or sharpening. */ + global.rgb_enables &= ~(PISP_BE_RGB_ENABLE_GAMMA + PISP_BE_RGB_ENABLE_CCM + + PISP_BE_RGB_ENABLE_SHARPEN + PISP_BE_RGB_ENABLE_SAT_CONTROL); + + NoiseStatus *noiseStatus = rpiMetadata.getLocked<NoiseStatus>("noise.status"); + AgcPrepareStatus *agcPrepareStatus = rpiMetadata.getLocked<AgcPrepareStatus>("agc.prepare_status"); + + { + /* All Frontend config goes first, we do not want to hold the FE lock for long! */ + std::scoped_lock<FrontEnd> lf(*fe_); + + if (noiseStatus) + applyFocusStats(noiseStatus); + + BlackLevelStatus *blackLevelStatus = + rpiMetadata.getLocked<BlackLevelStatus>("black_level.status"); + if (blackLevelStatus) + applyBlackLevel(blackLevelStatus, global); + + AwbStatus *awbStatus = rpiMetadata.getLocked<AwbStatus>("awb.status"); + if (awbStatus && agcPrepareStatus) { + /* Applies digital gain as well. */ + applyWBG(awbStatus, agcPrepareStatus, global); + } else if (agcPrepareStatus) { + /* Mono sensor fallback for digital gain. */ + applyDgOnly(agcPrepareStatus, global); + } + } + + CacStatus *cacStatus = rpiMetadata.getLocked<CacStatus>("cac.status"); + if (cacStatus) + applyCAC(cacStatus, global); + + ContrastStatus *contrastStatus = + rpiMetadata.getLocked<ContrastStatus>("contrast.status"); + if (contrastStatus) + applyContrast(contrastStatus, global); + + CcmStatus *ccmStatus = rpiMetadata.getLocked<CcmStatus>("ccm.status"); + if (ccmStatus) + applyCCM(ccmStatus, global); + + AlscStatus *alscStatus = rpiMetadata.getLocked<AlscStatus>("alsc.status"); + if (alscStatus) + applyLensShading(alscStatus, global); + + DpcStatus *dpcStatus = rpiMetadata.getLocked<DpcStatus>("dpc.status"); + if (dpcStatus) + applyDPC(dpcStatus, global); + + SdnStatus *sdnStatus = rpiMetadata.getLocked<SdnStatus>("sdn.status"); + if (sdnStatus) + applySdn(sdnStatus, global); + + DeviceStatus *deviceStatus = rpiMetadata.getLocked<DeviceStatus>("device.status"); + TdnStatus *tdnStatus = rpiMetadata.getLocked<TdnStatus>("tdn.status"); + if (tdnStatus && deviceStatus) + applyTdn(tdnStatus, deviceStatus, global); + + CdnStatus *cdnStatus = rpiMetadata.getLocked<CdnStatus>("cdn.status"); + if (cdnStatus) + applyCdn(cdnStatus, global); + + GeqStatus *geqStatus = rpiMetadata.getLocked<GeqStatus>("geq.status"); + if (geqStatus) + applyGeq(geqStatus, global); + + SaturationStatus *saturationStatus = + rpiMetadata.getLocked<SaturationStatus>("saturation.status"); + if (saturationStatus) + applySaturation(saturationStatus, global); + + SharpenStatus *sharpenStatus = rpiMetadata.getLocked<SharpenStatus>("sharpen.status"); + if (sharpenStatus) + applySharpen(sharpenStatus, global); + + StitchStatus *stitchStatus = rpiMetadata.getLocked<StitchStatus>("stitch.status"); + if (stitchStatus) { + /* + * Note that it's the *delayed* AGC status that contains the HDR mode/channel + * info that pertains to this frame! + */ + AgcStatus *agcStatus = rpiMetadata.getLocked<AgcStatus>("agc.delayed_status"); + /* prepareIsp() will fetch this value. Maybe pass it back differently? */ + stitchSwapBuffers_ = applyStitch(stitchStatus, deviceStatus, agcStatus, global); + } else + lastStitchHdrStatus_ = HdrStatus(); + + TonemapStatus *tonemapStatus = rpiMetadata.getLocked<TonemapStatus>("tonemap.status"); + if (tonemapStatus) + applyTonemap(tonemapStatus, global); + + be_->SetGlobal(global); + + /* Save this for TDN and HDR on the next frame. */ + lastExposure_ = deviceStatus->exposureTime * deviceStatus->analogueGain; + + /* Lens control */ + const AfStatus *afStatus = rpiMetadata.getLocked<AfStatus>("af.status"); + if (afStatus) { + ControlList lensctrls(lensCtrls_); + applyAF(afStatus, lensctrls); + if (!lensctrls.empty()) + setLensControls.emit(lensctrls); + } +} + +RPiController::StatisticsPtr IpaPiSP::platformProcessStats(Span<uint8_t> mem) +{ + using namespace RPiController; + + const pisp_statistics *stats = reinterpret_cast<pisp_statistics *>(mem.data()); + + unsigned int i; + StatisticsPtr statistics = + std::make_unique<Statistics>(Statistics::AgcStatsPos::PostWb, + Statistics::ColourStatsPos::PreLsc); + + /* RGB histograms are not used, so do not populate them. */ + statistics->yHist = RPiController::Histogram(stats->agc.histogram, + PISP_AGC_STATS_NUM_BINS); + + statistics->awbRegions.init({ PISP_AWB_STATS_SIZE, PISP_AWB_STATS_SIZE }); + for (i = 0; i < statistics->awbRegions.numRegions(); i++) + statistics->awbRegions.set(i, { { stats->awb.zones[i].R_sum, + stats->awb.zones[i].G_sum, + stats->awb.zones[i].B_sum }, + stats->awb.zones[i].counted, 0 }); + + /* AGC region sums only get collected on floating zones. */ + statistics->agcRegions.init({ 0, 0 }, PISP_FLOATING_STATS_NUM_ZONES); + for (i = 0; i < statistics->agcRegions.numRegions(); i++) + statistics->agcRegions.setFloating(i, + { { 0, 0, 0, stats->agc.floating[i].Y_sum }, + stats->agc.floating[i].counted, 0 }); + + statistics->focusRegions.init({ PISP_CDAF_STATS_SIZE, PISP_CDAF_STATS_SIZE }); + for (i = 0; i < statistics->focusRegions.numRegions(); i++) + statistics->focusRegions.set(i, { stats->cdaf.foms[i] >> 20, 0, 0 }); + + if (statsMetadataOutput_) { + Span<const uint8_t> statsSpan(reinterpret_cast<const uint8_t *>(stats), + sizeof(pisp_statistics)); + libcameraMetadata_.set(controls::rpi::PispStatsOutput, statsSpan); + } + + return statistics; +} + +void IpaPiSP::handleControls(const ControlList &controls) +{ + for (auto const &ctrl : controls) { + switch (ctrl.first) { + case controls::HDR_MODE: + case controls::AE_METERING_MODE: + setHistogramWeights(); + break; + + case controls::draft::NOISE_REDUCTION_MODE: { + RPiController::DenoiseAlgorithm *denoise = dynamic_cast<RPiController::DenoiseAlgorithm *>( + controller_.getAlgorithm("denoise")); + + if (!denoise) { + LOG(IPARPI, Warning) + << "Could not set NOISE_REDUCTION_MODE - no Denoise algorithm"; + return; + } + + if (ctrl.second.get<int32_t>() == controls::draft::NoiseReductionModeOff) + denoise->setMode(RPiController::DenoiseMode::Off); + else + denoise->setMode(RPiController::DenoiseMode::ColourHighQuality); + + break; + } + } + } +} + +void IpaPiSP::applyWBG(const AwbStatus *awbStatus, const AgcPrepareStatus *agcPrepareStatus, + pisp_be_global_config &global) +{ + pisp_wbg_config wbg; + pisp_fe_rgby_config rgby = {}; + double dg = agcPrepareStatus ? agcPrepareStatus->digitalGain : 1.0; + + wbg.gain_r = clampField(dg * awbStatus->gainR, 14, 10); + wbg.gain_g = clampField(dg * awbStatus->gainG, 14, 10); + wbg.gain_b = clampField(dg * awbStatus->gainB, 14, 10); + + /* + * The YCbCr conversion block should contain the appropriate YCbCr + * matrix. We should not rely on the CSC0 block as that might be + * programmed for RGB outputs. + */ + pisp_be_ccm_config csc; + be_->GetYcbcr(csc); + + /* The CSC coefficients already have the << 10 scaling applied. */ + rgby.gain_r = clampField(csc.coeffs[0] * awbStatus->gainR, 14); + rgby.gain_g = clampField(csc.coeffs[1] * awbStatus->gainG, 14); + rgby.gain_b = clampField(csc.coeffs[2] * awbStatus->gainB, 14); + + LOG(IPARPI, Debug) << "Applying WB R: " << awbStatus->gainR << " B: " + << awbStatus->gainB; + + be_->SetWbg(wbg); + fe_->SetRGBY(rgby); + global.bayer_enables |= PISP_BE_BAYER_ENABLE_WBG; +} + +void IpaPiSP::applyDgOnly(const AgcPrepareStatus *agcPrepareStatus, pisp_be_global_config &global) +{ + pisp_wbg_config wbg; + + wbg.gain_r = clampField(agcPrepareStatus->digitalGain, 14, 10); + wbg.gain_g = clampField(agcPrepareStatus->digitalGain, 14, 10); + wbg.gain_b = clampField(agcPrepareStatus->digitalGain, 14, 10); + + LOG(IPARPI, Debug) << "Applying DG (only) : " << agcPrepareStatus->digitalGain; + + be_->SetWbg(wbg); + global.bayer_enables |= PISP_BE_BAYER_ENABLE_WBG; +} + +void IpaPiSP::applyContrast(const ContrastStatus *contrastStatus, + pisp_be_global_config &global) +{ + pisp_be_gamma_config gamma; + + if (!generateLut(contrastStatus->gammaCurve, gamma.lut, PISP_BE_GAMMA_LUT_SIZE)) { + be_->SetGamma(gamma); + global.rgb_enables |= PISP_BE_RGB_ENABLE_GAMMA; + } +} + +void IpaPiSP::applyCCM(const CcmStatus *ccmStatus, pisp_be_global_config &global) +{ + pisp_be_ccm_config ccm = {}; + + for (unsigned int i = 0; i < 9; i++) + ccm.coeffs[i] = clampField(ccmStatus->matrix[i], 14, 10, true); + + be_->SetCcm(ccm); + global.rgb_enables |= PISP_BE_RGB_ENABLE_CCM; +} + +void IpaPiSP::applyCAC(const CacStatus *cacStatus, pisp_be_global_config &global) +{ + pisp_be_cac_config cac = {}; + + for (int x = 0; x < PISP_BE_CAC_GRID_SIZE + 1; x++) { + for (int y = 0; y < PISP_BE_CAC_GRID_SIZE + 1; y++) { + cac.lut[y][x][0][0] = clampField(cacStatus->lutRx[y * (PISP_BE_CAC_GRID_SIZE + 1) + x], 7, 5, true); + cac.lut[y][x][0][1] = clampField(cacStatus->lutRy[y * (PISP_BE_CAC_GRID_SIZE + 1) + x], 7, 5, true); + cac.lut[y][x][1][0] = clampField(cacStatus->lutBx[y * (PISP_BE_CAC_GRID_SIZE + 1) + x], 7, 5, true); + cac.lut[y][x][1][1] = clampField(cacStatus->lutBy[y * (PISP_BE_CAC_GRID_SIZE + 1) + x], 7, 5, true); + } + } + + be_->SetCac(cac); + global.bayer_enables |= PISP_BE_BAYER_ENABLE_CAC; +} + +void IpaPiSP::applyBlackLevel(const BlackLevelStatus *blackLevelStatus, pisp_be_global_config &global) +{ + uint16_t minBlackLevel = std::min({ blackLevelStatus->blackLevelR, blackLevelStatus->blackLevelG, + blackLevelStatus->blackLevelB }); + pisp_bla_config bla; + + /* + * Set the Frontend to adjust the black level to the smallest black level + * of all channels (in 16-bits). + */ + bla.black_level_r = blackLevelStatus->blackLevelR; + bla.black_level_gr = blackLevelStatus->blackLevelG; + bla.black_level_gb = blackLevelStatus->blackLevelG; + bla.black_level_b = blackLevelStatus->blackLevelB; + bla.output_black_level = minBlackLevel; + fe_->SetBla(bla); + + /* Frontend Stats and Backend black level correction. */ + bla.black_level_r = bla.black_level_gr = + bla.black_level_gb = bla.black_level_b = minBlackLevel; + bla.output_black_level = 0; + fe_->SetBlc(bla); + be_->SetBlc(bla); + global.bayer_enables |= PISP_BE_BAYER_ENABLE_BLC; +} + +void IpaPiSP::applyLensShading(const AlscStatus *alscStatus, + pisp_be_global_config &global) +{ + pisp_be_lsc_extra lscExtra = {}; + pisp_be_lsc_config lsc = {}; + double rgb[3][NumLscVertexes][NumLscVertexes] = {}; + + resampleTable(&rgb[0][0][0], NumLscVertexes, NumLscVertexes, + alscStatus->r.data(), NumLscCells, NumLscCells); + resampleTable(&rgb[1][0][0], NumLscVertexes, NumLscVertexes, + alscStatus->g.data(), NumLscCells, NumLscCells); + resampleTable(&rgb[2][0][0], NumLscVertexes, NumLscVertexes, + alscStatus->b.data(), NumLscCells, NumLscCells); + packLscLut(lsc.lut_packed, rgb); + be_->SetLsc(lsc, lscExtra); + global.bayer_enables |= PISP_BE_BAYER_ENABLE_LSC; +} + +void IpaPiSP::applyDPC(const DpcStatus *dpcStatus, pisp_be_global_config &global) +{ + pisp_be_dpc_config dpc = {}; + + switch (dpcStatus->strength) { + case 0: /* "off" */ + break; + case 1: /* "normal" */ + dpc.coeff_level = 1; + dpc.coeff_range = 8; + global.bayer_enables |= PISP_BE_BAYER_ENABLE_DPC; + break; + case 2: /* "strong" */ + dpc.coeff_level = 0; + dpc.coeff_range = 0; + global.bayer_enables |= PISP_BE_BAYER_ENABLE_DPC; + break; + default: + ASSERT(0); + } + + be_->SetDpc(dpc); +} + +void IpaPiSP::applySdn(const SdnStatus *sdnStatus, pisp_be_global_config &global) +{ + pisp_be_sdn_config sdn = {}; + pisp_bla_config blc; + + be_->GetBlc(blc); + /* All R/G/B black levels are the same value in the BE after FE alignment */ + sdn.black_level = blc.black_level_r; + /* leakage is "amount of the original pixel we let through", thus 1 - strength */ + sdn.leakage = clampField(1.0 - sdnStatus->strength, 8, 8); + sdn.noise_constant = clampField(sdnStatus->noiseConstant, 16); + sdn.noise_slope = clampField(sdnStatus->noiseSlope, 16, 8); + sdn.noise_constant2 = clampField(sdnStatus->noiseConstant2, 16); + sdn.noise_slope2 = clampField(sdnStatus->noiseSlope2, 16, 8); + be_->SetSdn(sdn); + global.bayer_enables |= PISP_BE_BAYER_ENABLE_SDN; +} + +void IpaPiSP::applyTdn(const TdnStatus *tdnStatus, const DeviceStatus *deviceStatus, + pisp_be_global_config &global) +{ + utils::Duration exposure = deviceStatus->exposureTime * deviceStatus->analogueGain; + pisp_be_tdn_config tdn = {}; + + double ratio = tdnReset_ ? 1.0 : exposure / lastExposure_; + if (ratio >= 4.0) { + /* If the exposure ratio goes above 4x, we need to reset TDN. */ + ratio = 1; + tdnReset_ = true; + } + + LOG(IPARPI, Debug) << "TDN: exposure: " << exposure + << " last: " << lastExposure_ + << " ratio: " << ratio; + + pisp_bla_config blc; + be_->GetBlc(blc); + /* All R/G/B black levels are the same value in the BE after FE alignment */ + tdn.black_level = blc.black_level_r; + tdn.ratio = clampField(ratio, 16, 14); + tdn.noise_constant = clampField(tdnStatus->noiseConstant, 16); + tdn.noise_slope = clampField(tdnStatus->noiseSlope, 16, 8); + tdn.threshold = clampField(tdnStatus->threshold, 16, 16); + + global.bayer_enables |= PISP_BE_BAYER_ENABLE_TDN + PISP_BE_BAYER_ENABLE_TDN_OUTPUT; + + /* Only enable the TDN Input after a state reset. */ + if (!tdnReset_) { + global.bayer_enables |= PISP_BE_BAYER_ENABLE_TDN_INPUT; + tdn.reset = 0; + } else + tdn.reset = 1; + + be_->SetTdn(tdn); + tdnReset_ = false; +} + +void IpaPiSP::applyCdn(const CdnStatus *cdnStatus, pisp_be_global_config &global) +{ + pisp_be_cdn_config cdn = {}; + + cdn.thresh = clampField(cdnStatus->threshold, 16); + cdn.iir_strength = clampField(cdnStatus->strength, 8, 8); + cdn.g_adjust = clampField(0, 8, 8); + be_->SetCdn(cdn); + global.bayer_enables |= PISP_BE_BAYER_ENABLE_CDN; +} + +void IpaPiSP::applyGeq(const GeqStatus *geqStatus, pisp_be_global_config &global) +{ + pisp_be_geq_config geq = {}; + + geq.min = 0; + geq.max = 0xffff; + geq.offset = clampField(geqStatus->offset, 16); + geq.slope_sharper = clampField(geqStatus->slope, 10, 10); + be_->SetGeq(geq); + global.bayer_enables |= PISP_BE_BAYER_ENABLE_GEQ; +} + +void IpaPiSP::applySaturation(const SaturationStatus *saturationStatus, + pisp_be_global_config &global) +{ + pisp_be_sat_control_config saturation; + pisp_wbg_config wbg; + + saturation.shift_r = std::min<uint8_t>(2, saturationStatus->shiftR); + saturation.shift_g = std::min<uint8_t>(2, saturationStatus->shiftG); + saturation.shift_b = std::min<uint8_t>(2, saturationStatus->shiftB); + be_->SetSatControl(saturation); + + be_->GetWbg(wbg); + wbg.gain_r >>= saturationStatus->shiftR; + wbg.gain_g >>= saturationStatus->shiftG; + wbg.gain_b >>= saturationStatus->shiftB; + be_->SetWbg(wbg); + + global.rgb_enables |= PISP_BE_RGB_ENABLE_SAT_CONTROL; +} + +void IpaPiSP::applySharpen(const SharpenStatus *sharpenStatus, + pisp_be_global_config &global) +{ + /* + * This threshold scaling is to normalise the VC4 and PiSP parameter + * scales in the tuning config. + */ + static constexpr double ThresholdScaling = 0.25; + const double scaling = sharpenStatus->threshold * ThresholdScaling; + + pisp_be_sh_fc_combine_config shfc; + pisp_be_sharpen_config sharpen; + + be_->InitialiseSharpen(sharpen, shfc); + sharpen.threshold_offset0 = clampField(sharpen.threshold_offset0 * scaling, 16); + sharpen.threshold_offset1 = clampField(sharpen.threshold_offset1 * scaling, 16); + sharpen.threshold_offset2 = clampField(sharpen.threshold_offset2 * scaling, 16); + sharpen.threshold_offset3 = clampField(sharpen.threshold_offset3 * scaling, 16); + sharpen.threshold_offset4 = clampField(sharpen.threshold_offset4 * scaling, 16); + sharpen.threshold_slope0 = clampField(sharpen.threshold_slope0 * scaling, 12); + sharpen.threshold_slope1 = clampField(sharpen.threshold_slope1 * scaling, 12); + sharpen.threshold_slope2 = clampField(sharpen.threshold_slope2 * scaling, 12); + sharpen.threshold_slope3 = clampField(sharpen.threshold_slope3 * scaling, 12); + sharpen.threshold_slope4 = clampField(sharpen.threshold_slope4 * scaling, 12); + sharpen.positive_strength = clampField(sharpen.positive_strength * sharpenStatus->strength, 12); + sharpen.negative_strength = clampField(sharpen.negative_strength * sharpenStatus->strength, 12); + sharpen.positive_pre_limit = clampField(sharpen.positive_pre_limit * sharpenStatus->limit, 16); + sharpen.positive_limit = clampField(sharpen.positive_limit * sharpenStatus->limit, 16); + sharpen.negative_pre_limit = clampField(sharpen.negative_pre_limit * sharpenStatus->limit, 16); + sharpen.negative_limit = clampField(sharpen.negative_limit * sharpenStatus->limit, 16); + + be_->SetSharpen(sharpen); + /* The conversion to YCbCr and back is always enabled. */ + global.rgb_enables |= PISP_BE_RGB_ENABLE_SHARPEN; +} + +bool IpaPiSP::applyStitch(const StitchStatus *stitchStatus, const DeviceStatus *deviceStatus, + const AgcStatus *agcStatus, pisp_be_global_config &global) +{ + /* + * Find out what HDR mode/channel this frame is. Normally this will be in the delayed + * HDR status (in the AGC status), though after a mode switch this will be absent and + * the information will have been stored in the hdrStatus_ field. + */ + const HdrStatus *hdrStatus = &hdrStatus_; + if (agcStatus) + hdrStatus = &agcStatus->hdr; + + bool modeChange = hdrStatus->mode != lastStitchHdrStatus_.mode; + bool channelChange = !modeChange && hdrStatus->channel != lastStitchHdrStatus_.channel; + lastStitchHdrStatus_ = *hdrStatus; + + /* Check for a change of HDR mode. That forces us to start over. */ + if (modeChange) + lastStitchExposures_.clear(); + + if (hdrStatus->channel != "short" && hdrStatus->channel != "long") { + /* The channel *must* be long or short, anything else does not make sense. */ + LOG(IPARPI, Warning) << "Stitch channel is not long or short"; + return false; + } + + /* Whatever happens, we're going to output this buffer now. */ + global.bayer_enables |= PISP_BE_BAYER_ENABLE_STITCH_OUTPUT; + + utils::Duration exposure = deviceStatus->exposureTime * deviceStatus->analogueGain; + lastStitchExposures_[hdrStatus->channel] = exposure; + + /* If the other channel hasn't been seen there's nothing more we can do. */ + std::string otherChannel = hdrStatus->channel == "short" ? "long" : "short"; + if (lastStitchExposures_.find(otherChannel) == lastStitchExposures_.end()) { + /* The first channel should be "short". */ + if (hdrStatus->channel != "short") + LOG(IPARPI, Warning) << "First frame is not short"; + return false; + } + + /* We have both channels, we need to enable stitching. */ + global.bayer_enables |= PISP_BE_BAYER_ENABLE_STITCH_INPUT + PISP_BE_BAYER_ENABLE_STITCH; + + utils::Duration otherExposure = lastStitchExposures_[otherChannel]; + bool phaseLong = hdrStatus->channel == "long"; + double ratio = phaseLong ? otherExposure / exposure : exposure / otherExposure; + + pisp_be_stitch_config stitch = {}; + stitch.exposure_ratio = clampField(ratio, 15, 15); + if (phaseLong) + stitch.exposure_ratio |= PISP_BE_STITCH_STREAMING_LONG; + /* These will be filled in correctly once we have implemented the HDR algorithm. */ + stitch.threshold_lo = stitchStatus->thresholdLo; + stitch.threshold_diff_power = stitchStatus->diffPower; + stitch.motion_threshold_256 = stitchStatus->motionThreshold; + be_->SetStitch(stitch); + + return channelChange; +} + +void IpaPiSP::applyTonemap(const TonemapStatus *tonemapStatus, pisp_be_global_config &global) +{ + pisp_be_tonemap_config tonemap = {}; + + tonemap.detail_constant = clampField(tonemapStatus->detailConstant, 16); + tonemap.detail_slope = clampField(tonemapStatus->detailSlope, 16, 8); + tonemap.iir_strength = clampField(tonemapStatus->iirStrength, 12, 4); + tonemap.strength = clampField(tonemapStatus->strength, 12, 8); + + if (!generateLut(tonemapStatus->tonemap, tonemap.lut, PISP_BE_TONEMAP_LUT_SIZE)) { + be_->SetTonemap(tonemap); + global.bayer_enables |= PISP_BE_BAYER_ENABLE_TONEMAP; + } +} + +void IpaPiSP::applyFocusStats(const NoiseStatus *noiseStatus) +{ + pisp_fe_cdaf_stats_config cdaf; + fe_->GetCdafStats(cdaf); + + cdaf.noise_constant = noiseStatus->noiseConstant; + cdaf.noise_slope = noiseStatus->noiseSlope; + fe_->SetCdafStats(cdaf); +} + +void IpaPiSP::applyAF(const struct AfStatus *afStatus, ControlList &lensCtrls) +{ + if (afStatus->lensSetting) { + ControlValue v(afStatus->lensSetting.value()); + lensCtrls.set(V4L2_CID_FOCUS_ABSOLUTE, v); + } +} + +void IpaPiSP::setDefaultConfig() +{ + std::scoped_lock<FrontEnd> l(*fe_); + + pisp_be_global_config beGlobal; + pisp_fe_global_config feGlobal; + + fe_->GetGlobal(feGlobal); + be_->GetGlobal(beGlobal); + /* + * Always go to YCbCr and back. We need them if the false colour block is enabled, + * and even for mono sensors if sharpening is enabled. So we're better off enabling + * them all the time. + */ + beGlobal.rgb_enables |= PISP_BE_RGB_ENABLE_YCBCR + PISP_BE_RGB_ENABLE_YCBCR_INVERSE; + + if (!monoSensor()) { + beGlobal.bayer_enables |= PISP_BE_BAYER_ENABLE_DEMOSAIC; + beGlobal.rgb_enables |= PISP_BE_RGB_ENABLE_FALSE_COLOUR; + } + + /* + * Ask the AWB algorithm for reasonable gain values so that we can program the + * front end stats sensibly. We must also factor in the conversion to luminance. + */ + pisp_fe_rgby_config rgby = {}; + double gainR = 1.5, gainB = 1.5; + RPiController::AwbAlgorithm *awb = dynamic_cast<RPiController::AwbAlgorithm *>( + controller_.getAlgorithm("awb")); + if (awb) + awb->initialValues(gainR, gainB); + /* The BT.601 RGB -> Y coefficients will do. The precise values are not critical. */ + rgby.gain_r = clampField(gainR * 0.299, 14, 10); + rgby.gain_g = clampField(1.0 * .587, 14, 10); + rgby.gain_b = clampField(gainB * .114, 14, 10); + fe_->SetRGBY(rgby); + feGlobal.enables |= PISP_FE_ENABLE_RGBY; + + /* Also get sensible front end black level defaults, for the same reason. */ + RPiController::BlackLevelAlgorithm *blackLevel = dynamic_cast<RPiController::BlackLevelAlgorithm *>( + controller_.getAlgorithm("black_level")); + if (blackLevel) { + uint16_t blackLevelR, blackLevelG, blackLevelB; + BlackLevelStatus blackLevelStatus; + + blackLevel->initialValues(blackLevelR, blackLevelG, blackLevelB); + blackLevelStatus.blackLevelR = blackLevelR; + blackLevelStatus.blackLevelG = blackLevelG; + blackLevelStatus.blackLevelB = blackLevelB; + applyBlackLevel(&blackLevelStatus, beGlobal); + feGlobal.enables |= PISP_FE_ENABLE_BLA + PISP_FE_ENABLE_BLC; + } + + fe_->SetGlobal(feGlobal); + be_->SetGlobal(beGlobal); +} + +void IpaPiSP::setStatsAndDebin() +{ + pisp_fe_crop_config crop{ 0, 0, mode_.width, mode_.height }; + + pisp_fe_awb_stats_config awb = {}; + awb.r_lo = awb.g_lo = awb.b_lo = 0; + awb.r_hi = awb.g_hi = awb.b_hi = 65535 * 0.98; + + pisp_fe_cdaf_stats_config cdaf = {}; + cdaf.mode = (1 << 4) + (1 << 2) + 1; /* Gr / Gb count with weights of (1, 1) */ + + { + std::scoped_lock<FrontEnd> l(*fe_); + pisp_fe_global_config feGlobal; + fe_->GetGlobal(feGlobal); + feGlobal.enables |= PISP_FE_ENABLE_AWB_STATS + PISP_FE_ENABLE_AGC_STATS + + PISP_FE_ENABLE_CDAF_STATS; + + fe_->SetGlobal(feGlobal); + fe_->SetStatsCrop(crop); + fe_->SetAwbStats(awb); + fe_->SetCdafStats(cdaf); + } + + /* + * Apply the correct AGC region weights to the Frontend. Need to do this + * out of the Frontend scoped lock. + */ + setHistogramWeights(); + + pisp_be_global_config beGlobal; + be_->GetGlobal(beGlobal); + + if (mode_.binX > 1 || mode_.binY > 1) { + pisp_be_debin_config debin; + + be_->GetDebin(debin); + debin.h_enable = (mode_.binX > 1); + debin.v_enable = (mode_.binY > 1); + be_->SetDebin(debin); + beGlobal.bayer_enables |= PISP_BE_BAYER_ENABLE_DEBIN; + } else + beGlobal.bayer_enables &= ~PISP_BE_BAYER_ENABLE_DEBIN; + + be_->SetGlobal(beGlobal); +} + +void IpaPiSP::setHistogramWeights() +{ + RPiController::AgcAlgorithm *agc = dynamic_cast<RPiController::AgcAlgorithm *>( + controller_.getAlgorithm("agc")); + if (!agc) + return; + + const std::vector<double> &weights = agc->getWeights(); + + pisp_fe_agc_stats_config config; + memset(&config, 0, sizeof(config)); + + /* + * The AGC software gives us a 15x15 table of weights which we + * map onto 16x16 in the hardware, ensuring the rightmost column + * and bottom row all have zero weight. We align everything to + * the native 2x2 Bayer pixel blocks. + */ + const Size &size = controller_.getHardwareConfig().agcZoneWeights; + int width = (mode_.width / size.width) & ~1; + int height = (mode_.height / size.height) & ~1; + config.offset_x = ((mode_.width - size.width * width) / 2) & ~1; + config.offset_y = ((mode_.height - size.height * height) / 2) & ~1; + config.size_x = width; + config.size_y = height; + + unsigned int idx = 0; + for (unsigned int row = 0; row < size.height; row++) { + unsigned int col = 0; + for (; col < size.width / 2; col++) { + int wt0 = clampField(weights[idx++], 4, 0, false, "agc weights"); + int wt1 = clampField(weights[idx++], 4, 0, false, "agc weights"); + config.weights[row * 8 + col] = (wt1 << 4) | wt0; + } + if (size.width & 1) + config.weights[row * 8 + col] = + clampField(weights[idx++], 4, 0, false, "agc weights"); + } + + std::scoped_lock<FrontEnd> l(*fe_); + fe_->SetAgcStats(config); +} + +} /* namespace ipa::RPi */ + +/* + * External IPA module interface + */ +extern "C" { +const IPAModuleInfo ipaModuleInfo = { + IPA_MODULE_API_VERSION, + 1, + "rpi/pisp", + "rpi/pisp", +}; + +IPAInterface *ipaCreate() +{ + return new ipa::RPi::IpaPiSP(); +} + +} /* extern "C" */ + +} /* namespace libcamera */ diff --git a/src/ipa/rpi/vc4/data/imx219.json b/src/ipa/rpi/vc4/data/imx219.json index e8fce164..a020b12f 100644 --- a/src/ipa/rpi/vc4/data/imx219.json +++ b/src/ipa/rpi/vc4/data/imx219.json @@ -131,93 +131,306 @@ { "rpi.agc": { - "metering_modes": - { - "centre-weighted": - { - "weights": [ 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 ] - }, - "spot": - { - "weights": [ 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ] - }, - "matrix": - { - "weights": [ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ] - } - }, - "exposure_modes": - { - "normal": + "channels": [ { - "shutter": [ 100, 10000, 30000, 60000, 66666 ], - "gain": [ 1.0, 2.0, 4.0, 6.0, 8.0 ] - }, - "short": - { - "shutter": [ 100, 5000, 10000, 20000, 33333 ], - "gain": [ 1.0, 2.0, 4.0, 6.0, 8.0 ] + "metering_modes": + { + "centre-weighted": + { + "weights": + [ + 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 + ] + }, + "spot": + { + "weights": + [ + 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 + ] + }, + "matrix": + { + "weights": + [ + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 + ] + } + }, + "exposure_modes": + { + "normal": + { + "shutter": [ 100, 10000, 30000, 60000, 66666 ], + "gain": [ 1.0, 2.0, 4.0, 6.0, 8.0 ] + }, + "short": + { + "shutter": [ 100, 5000, 10000, 20000, 33333 ], + "gain": [ 1.0, 2.0, 4.0, 6.0, 8.0 ] + }, + "long": + { + "shutter": [ 100, 10000, 30000, 60000, 120000 ], + "gain": [ 1.0, 2.0, 4.0, 6.0, 12.0 ] + } + }, + "constraint_modes": + { + "normal": [ + { + "bound": "LOWER", + "q_lo": 0.98, + "q_hi": 1.0, + "y_target": + [ + 0, 0.5, + 1000, 0.5 + ] + } + ], + "highlight": [ + { + "bound": "LOWER", + "q_lo": 0.98, + "q_hi": 1.0, + "y_target": + [ + 0, 0.5, + 1000, 0.5 + ] + }, + { + "bound": "UPPER", + "q_lo": 0.98, + "q_hi": 1.0, + "y_target": + [ + 0, 0.8, + 1000, 0.8 + ] + } + ], + "shadows": [ + { + "bound": "LOWER", + "q_lo": 0.0, + "q_hi": 0.5, + "y_target": + [ + 0, 0.17, + 1000, 0.17 + ] + } + ] + }, + "y_target": + [ + 0, 0.16, + 1000, 0.165, + 10000, 0.17 + ] }, - "long": { - "shutter": [ 100, 10000, 30000, 60000, 120000 ], - "gain": [ 1.0, 2.0, 4.0, 6.0, 12.0 ] - } - }, - "constraint_modes": - { - "normal": [ + "base_ev": 0.125, + "metering_modes": { - "bound": "LOWER", - "q_lo": 0.98, - "q_hi": 1.0, - "y_target": - [ - 0, 0.5, - 1000, 0.5 - ] - } - ], - "highlight": [ + "centre-weighted": + { + "weights": + [ + 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 + ] + }, + "spot": + { + "weights": + [ + 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 + ] + }, + "matrix": + { + "weights": + [ + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 + ] + } + }, + "exposure_modes": { - "bound": "LOWER", - "q_lo": 0.98, - "q_hi": 1.0, - "y_target": - [ - 0, 0.5, - 1000, 0.5 - ] + "normal": + { + "shutter": [ 100, 10000, 30000, 60000, 66666 ], + "gain": [ 1.0, 2.0, 4.0, 6.0, 8.0 ] + }, + "short": + { + "shutter": [ 100, 5000, 10000, 20000, 33333 ], + "gain": [ 1.0, 2.0, 4.0, 6.0, 8.0 ] + }, + "long": + { + "shutter": [ 100, 10000, 30000, 60000, 120000 ], + "gain": [ 1.0, 2.0, 4.0, 6.0, 12.0 ] + } }, + "constraint_modes": { - "bound": "UPPER", - "q_lo": 0.98, - "q_hi": 1.0, - "y_target": - [ - 0, 0.8, - 1000, 0.8 + "normal": [ + { + "bound": "LOWER", + "q_lo": 0.98, + "q_hi": 1.0, + "y_target": + [ + 0, 0.5, + 1000, 0.5 + ] + } + ], + "highlight": [ + { + "bound": "LOWER", + "q_lo": 0.98, + "q_hi": 1.0, + "y_target": + [ + 0, 0.5, + 1000, 0.5 + ] + }, + { + "bound": "UPPER", + "q_lo": 0.98, + "q_hi": 1.0, + "y_target": + [ + 0, 0.8, + 1000, 0.8 + ] + } + ], + "shadows": [ + { + "bound": "LOWER", + "q_lo": 0.0, + "q_hi": 0.5, + "y_target": + [ + 0, 0.17, + 1000, 0.17 + ] + } ] - } - ], - "shadows": [ + }, + "y_target": + [ + 0, 0.16, + 1000, 0.165, + 10000, 0.17 + ] + }, + { + "base_ev": 1.5, + "metering_modes": + { + "centre-weighted": + { + "weights": + [ + 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 + ] + }, + "spot": + { + "weights": + [ + 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 + ] + }, + "matrix": + { + "weights": + [ + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 + ] + } + }, + "exposure_modes": { - "bound": "LOWER", - "q_lo": 0.0, - "q_hi": 0.5, - "y_target": - [ - 0, 0.17, - 1000, 0.17 + "normal": + { + "shutter": [ 100, 10000, 30000, 60000, 66666 ], + "gain": [ 1.0, 2.0, 4.0, 6.0, 8.0 ] + }, + "short": + { + "shutter": [ 100, 5000, 10000, 20000, 33333 ], + "gain": [ 1.0, 2.0, 4.0, 6.0, 8.0 ] + }, + "long": + { + "shutter": [ 100, 10000, 30000, 60000, 120000 ], + "gain": [ 1.0, 2.0, 4.0, 6.0, 12.0 ] + } + }, + "constraint_modes": + { + "normal": [ + { + "bound": "LOWER", + "q_lo": 0.98, + "q_hi": 1.0, + "y_target": + [ + 0, 0.5, + 1000, 0.5 + ] + } + ], + "highlight": [ + { + "bound": "LOWER", + "q_lo": 0.98, + "q_hi": 1.0, + "y_target": + [ + 0, 0.5, + 1000, 0.5 + ] + }, + { + "bound": "UPPER", + "q_lo": 0.98, + "q_hi": 1.0, + "y_target": + [ + 0, 0.8, + 1000, 0.8 + ] + } + ], + "shadows": [ + { + "bound": "LOWER", + "q_lo": 0.0, + "q_hi": 0.5, + "y_target": + [ + 0, 0.17, + 1000, 0.17 + ] + } ] - } - ] - }, - "y_target": - [ - 0, 0.16, - 1000, 0.165, - 10000, 0.17 + }, + "y_target": + [ + 0, 0.16, + 1000, 0.165, + 10000, 0.17 + ] + } ] } }, @@ -463,6 +676,20 @@ }, { "rpi.sharpen": { } + }, + { + "rpi.hdr": + { + "MultiExposureUnmerged": + { + "cadence": [ 1, 2 ], + "channel_map": + { + "short": 1, + "long": 2 + } + } + } } ] -}
\ No newline at end of file +} diff --git a/src/ipa/rpi/vc4/data/imx219_noir.json b/src/ipa/rpi/vc4/data/imx219_noir.json index cfedb943..d8bc9639 100644 --- a/src/ipa/rpi/vc4/data/imx219_noir.json +++ b/src/ipa/rpi/vc4/data/imx219_noir.json @@ -47,93 +47,306 @@ { "rpi.agc": { - "metering_modes": - { - "centre-weighted": - { - "weights": [ 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 ] - }, - "spot": - { - "weights": [ 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ] - }, - "matrix": - { - "weights": [ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ] - } - }, - "exposure_modes": - { - "normal": - { - "shutter": [ 100, 10000, 30000, 60000, 66666 ], - "gain": [ 1.0, 2.0, 4.0, 6.0, 8.0 ] - }, - "short": + "channels": [ { - "shutter": [ 100, 5000, 10000, 20000, 33333 ], - "gain": [ 1.0, 2.0, 4.0, 6.0, 8.0 ] + "metering_modes": + { + "centre-weighted": + { + "weights": + [ + 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 + ] + }, + "spot": + { + "weights": + [ + 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 + ] + }, + "matrix": + { + "weights": + [ + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 + ] + } + }, + "exposure_modes": + { + "normal": + { + "shutter": [ 100, 10000, 30000, 60000, 66666 ], + "gain": [ 1.0, 2.0, 4.0, 6.0, 8.0 ] + }, + "short": + { + "shutter": [ 100, 5000, 10000, 20000, 33333 ], + "gain": [ 1.0, 2.0, 4.0, 6.0, 8.0 ] + }, + "long": + { + "shutter": [ 100, 10000, 30000, 60000, 120000 ], + "gain": [ 1.0, 2.0, 4.0, 6.0, 12.0 ] + } + }, + "constraint_modes": + { + "normal": [ + { + "bound": "LOWER", + "q_lo": 0.98, + "q_hi": 1.0, + "y_target": + [ + 0, 0.5, + 1000, 0.5 + ] + } + ], + "highlight": [ + { + "bound": "LOWER", + "q_lo": 0.98, + "q_hi": 1.0, + "y_target": + [ + 0, 0.5, + 1000, 0.5 + ] + }, + { + "bound": "UPPER", + "q_lo": 0.98, + "q_hi": 1.0, + "y_target": + [ + 0, 0.8, + 1000, 0.8 + ] + } + ], + "shadows": [ + { + "bound": "LOWER", + "q_lo": 0.0, + "q_hi": 0.5, + "y_target": + [ + 0, 0.17, + 1000, 0.17 + ] + } + ] + }, + "y_target": + [ + 0, 0.16, + 1000, 0.165, + 10000, 0.17 + ] }, - "long": { - "shutter": [ 100, 10000, 30000, 60000, 120000 ], - "gain": [ 1.0, 2.0, 4.0, 6.0, 12.0 ] - } - }, - "constraint_modes": - { - "normal": [ + "base_ev": 0.125, + "metering_modes": { - "bound": "LOWER", - "q_lo": 0.98, - "q_hi": 1.0, - "y_target": - [ - 0, 0.5, - 1000, 0.5 - ] - } - ], - "highlight": [ + "centre-weighted": + { + "weights": + [ + 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 + ] + }, + "spot": + { + "weights": + [ + 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 + ] + }, + "matrix": + { + "weights": + [ + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 + ] + } + }, + "exposure_modes": { - "bound": "LOWER", - "q_lo": 0.98, - "q_hi": 1.0, - "y_target": - [ - 0, 0.5, - 1000, 0.5 - ] + "normal": + { + "shutter": [ 100, 10000, 30000, 60000, 66666 ], + "gain": [ 1.0, 2.0, 4.0, 6.0, 8.0 ] + }, + "short": + { + "shutter": [ 100, 5000, 10000, 20000, 33333 ], + "gain": [ 1.0, 2.0, 4.0, 6.0, 8.0 ] + }, + "long": + { + "shutter": [ 100, 10000, 30000, 60000, 120000 ], + "gain": [ 1.0, 2.0, 4.0, 6.0, 12.0 ] + } }, + "constraint_modes": { - "bound": "UPPER", - "q_lo": 0.98, - "q_hi": 1.0, - "y_target": - [ - 0, 0.8, - 1000, 0.8 + "normal": [ + { + "bound": "LOWER", + "q_lo": 0.98, + "q_hi": 1.0, + "y_target": + [ + 0, 0.5, + 1000, 0.5 + ] + } + ], + "highlight": [ + { + "bound": "LOWER", + "q_lo": 0.98, + "q_hi": 1.0, + "y_target": + [ + 0, 0.5, + 1000, 0.5 + ] + }, + { + "bound": "UPPER", + "q_lo": 0.98, + "q_hi": 1.0, + "y_target": + [ + 0, 0.8, + 1000, 0.8 + ] + } + ], + "shadows": [ + { + "bound": "LOWER", + "q_lo": 0.0, + "q_hi": 0.5, + "y_target": + [ + 0, 0.17, + 1000, 0.17 + ] + } ] - } - ], - "shadows": [ + }, + "y_target": + [ + 0, 0.16, + 1000, 0.165, + 10000, 0.17 + ] + }, + { + "base_ev": 1.5, + "metering_modes": { - "bound": "LOWER", - "q_lo": 0.0, - "q_hi": 0.5, - "y_target": - [ - 0, 0.17, - 1000, 0.17 + "centre-weighted": + { + "weights": + [ + 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 + ] + }, + "spot": + { + "weights": + [ + 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 + ] + }, + "matrix": + { + "weights": + [ + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 + ] + } + }, + "exposure_modes": + { + "normal": + { + "shutter": [ 100, 10000, 30000, 60000, 66666 ], + "gain": [ 1.0, 2.0, 4.0, 6.0, 8.0 ] + }, + "short": + { + "shutter": [ 100, 5000, 10000, 20000, 33333 ], + "gain": [ 1.0, 2.0, 4.0, 6.0, 8.0 ] + }, + "long": + { + "shutter": [ 100, 10000, 30000, 60000, 120000 ], + "gain": [ 1.0, 2.0, 4.0, 6.0, 12.0 ] + } + }, + "constraint_modes": + { + "normal": [ + { + "bound": "LOWER", + "q_lo": 0.98, + "q_hi": 1.0, + "y_target": + [ + 0, 0.5, + 1000, 0.5 + ] + } + ], + "highlight": [ + { + "bound": "LOWER", + "q_lo": 0.98, + "q_hi": 1.0, + "y_target": + [ + 0, 0.5, + 1000, 0.5 + ] + }, + { + "bound": "UPPER", + "q_lo": 0.98, + "q_hi": 1.0, + "y_target": + [ + 0, 0.8, + 1000, 0.8 + ] + } + ], + "shadows": [ + { + "bound": "LOWER", + "q_lo": 0.0, + "q_hi": 0.5, + "y_target": + [ + 0, 0.17, + 1000, 0.17 + ] + } ] - } - ] - }, - "y_target": - [ - 0, 0.16, - 1000, 0.165, - 10000, 0.17 + }, + "y_target": + [ + 0, 0.16, + 1000, 0.165, + 10000, 0.17 + ] + } ] } }, @@ -397,6 +610,20 @@ }, { "rpi.sharpen": { } + }, + { + "rpi.hdr": + { + "MultiExposureUnmerged": + { + "cadence": [ 1, 2 ], + "channel_map": + { + "short": 1, + "long": 2 + } + } + } } ] -}
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1, 1 + ] }, "centre-weighted": { - "weights": [ 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 ] + "weights": + [ + 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 + ] }, "spot": { - "weights": [ 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ] + "weights": + [ + 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 + ] } }, "exposure_modes": diff --git a/src/ipa/rpi/vc4/data/imx296.json b/src/ipa/rpi/vc4/data/imx296.json index 7621f759..8f24ce5b 100644 --- a/src/ipa/rpi/vc4/data/imx296.json +++ b/src/ipa/rpi/vc4/data/imx296.json @@ -135,15 +135,24 @@ { "centre-weighted": { - "weights": [ 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 ] + "weights": + [ + 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 + ] }, "spot": { - "weights": [ 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ] + "weights": + [ + 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 + ] }, "matrix": { - "weights": [ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ] + "weights": + [ + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 + ] } }, "exposure_modes": @@ -431,4 +440,4 @@ } } ] -} +}
\ No newline at end of file diff --git a/src/ipa/rpi/vc4/data/imx296_mono.json b/src/ipa/rpi/vc4/data/imx296_mono.json index d4140c81..fe331569 100644 --- a/src/ipa/rpi/vc4/data/imx296_mono.json +++ b/src/ipa/rpi/vc4/data/imx296_mono.json @@ -38,15 +38,24 @@ { "centre-weighted": { - "weights": [ 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 ] + "weights": + [ + 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 + ] }, "spot": { - "weights": [ 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ] + "weights": + [ + 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 + ] }, "matrix": { - "weights": [ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ] + "weights": + [ + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 + ] } }, "exposure_modes": @@ -228,4 +237,4 @@ } } ] -} +}
\ No newline at end of file diff --git a/src/ipa/rpi/vc4/data/imx327.json b/src/ipa/rpi/vc4/data/imx327.json new file mode 100644 index 00000000..40a56842 --- /dev/null +++ b/src/ipa/rpi/vc4/data/imx327.json @@ -0,0 +1,215 @@ +{ + "version": 2.0, + "target": "bcm2835", + "description": "This is an interim tuning only. Please consider doing a more formal tuning for your application.", + "algorithms": [ + { + "rpi.black_level": + { + "black_level": 3840 + } + }, + { + "rpi.dpc": { } + }, + { + "rpi.lux": + { + "reference_shutter_speed": 6813, + "reference_gain": 1.0, + "reference_aperture": 1.0, + "reference_lux": 890, + "reference_Y": 12900 + } + }, + { + "rpi.noise": + { + "reference_constant": 0, + "reference_slope": 2.67 + } + }, + { + "rpi.geq": + { + "offset": 187, + "slope": 0.00842 + } + }, + { + "rpi.sdn": { } + }, + { + "rpi.awb": + { + "bayes": 0 + } + }, + { + "rpi.agc": + { + "speed": 0.2, + "metering_modes": + { + "matrix": + { + "weights": + [ + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 + ] + }, + "centre-weighted": + { + "weights": + [ + 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 + ] + }, + "spot": + { + "weights": + [ + 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 + ] + } + }, + "exposure_modes": + { + "normal": + { + "shutter": [ 10, 30000, 60000 ], + "gain": [ 1.0, 2.0, 8.0 ] + }, + "short": + { + "shutter": [ 10, 5000, 10000, 20000, 120000 ], + "gain": [ 1.0, 2.0, 4.0, 6.0, 8.0 ] + }, + "long": + { + "shutter": [ 1000, 30000, 60000, 90000, 120000 ], + "gain": [ 1.0, 2.0, 4.0, 6.0, 12.0 ] + } + }, + "constraint_modes": + { + "normal": [ ], + "highlight": [ + { + "bound": "LOWER", + "q_lo": 0.98, + "q_hi": 1.0, + "y_target": + [ + 0, 0.5, + 1000, 0.5 + ] + }, + { + "bound": "UPPER", + "q_lo": 0.98, + "q_hi": 1.0, + "y_target": + [ + 0, 0.8, + 1000, 0.8 + ] + } + ] + }, + "y_target": + [ + 0, 0.16, + 1000, 0.16, + 10000, 0.16 + ] + } + }, + { + "rpi.alsc": + { + "omega": 1.3, + "n_iter": 100, + "luminance_strength": 0.7, + "luminance_lut": + [ + 2.844, 2.349, 2.018, 1.775, 1.599, 1.466, 1.371, 1.321, 1.306, 1.316, 1.357, 1.439, 1.552, 1.705, 1.915, 2.221, + 2.576, 2.151, 1.851, 1.639, 1.478, 1.358, 1.272, 1.231, 1.218, 1.226, 1.262, 1.335, 1.438, 1.571, 1.766, 2.067, + 2.381, 2.005, 1.739, 1.545, 1.389, 1.278, 1.204, 1.166, 1.153, 1.161, 1.194, 1.263, 1.356, 1.489, 1.671, 1.943, + 2.242, 1.899, 1.658, 1.481, 1.329, 1.225, 1.156, 1.113, 1.096, 1.107, 1.143, 1.201, 1.289, 1.423, 1.607, 1.861, + 2.152, 1.831, 1.602, 1.436, 1.291, 1.193, 1.121, 1.069, 1.047, 1.062, 1.107, 1.166, 1.249, 1.384, 1.562, 1.801, + 2.104, 1.795, 1.572, 1.407, 1.269, 1.174, 1.099, 1.041, 1.008, 1.029, 1.083, 1.146, 1.232, 1.364, 1.547, 1.766, + 2.104, 1.796, 1.572, 1.403, 1.264, 1.171, 1.097, 1.036, 1.001, 1.025, 1.077, 1.142, 1.231, 1.363, 1.549, 1.766, + 2.148, 1.827, 1.594, 1.413, 1.276, 1.184, 1.114, 1.062, 1.033, 1.049, 1.092, 1.153, 1.242, 1.383, 1.577, 1.795, + 2.211, 1.881, 1.636, 1.455, 1.309, 1.214, 1.149, 1.104, 1.081, 1.089, 1.125, 1.184, 1.273, 1.423, 1.622, 1.846, + 2.319, 1.958, 1.698, 1.516, 1.362, 1.262, 1.203, 1.156, 1.137, 1.142, 1.171, 1.229, 1.331, 1.484, 1.682, 1.933, + 2.459, 2.072, 1.789, 1.594, 1.441, 1.331, 1.261, 1.219, 1.199, 1.205, 1.232, 1.301, 1.414, 1.571, 1.773, 2.052, + 2.645, 2.206, 1.928, 1.728, 1.559, 1.451, 1.352, 1.301, 1.282, 1.289, 1.319, 1.395, 1.519, 1.685, 1.904, 2.227 + ], + "sigma": 0.005, + "sigma_Cb": 0.005 + } + }, + { + "rpi.contrast": + { + "ce_enable": 1, + "gamma_curve": + [ + 0, 0, + 1024, 5040, + 2048, 9338, + 3072, 12356, + 4096, 15312, + 5120, 18051, + 6144, 20790, + 7168, 23193, + 8192, 25744, + 9216, 27942, + 10240, 30035, + 11264, 32005, + 12288, 33975, + 13312, 35815, + 14336, 37600, + 15360, 39168, + 16384, 40642, + 18432, 43379, + 20480, 45749, + 22528, 47753, + 24576, 49621, + 26624, 51253, + 28672, 52698, + 30720, 53796, + 32768, 54876, + 36864, 57012, + 40960, 58656, + 45056, 59954, + 49152, 61183, + 53248, 62355, + 57344, 63419, + 61440, 64476, + 65535, 65535 + ] + } + }, + { + "rpi.sharpen": { } + }, + { + "rpi.ccm": + { + "ccms": [ + { + "ct": 3900, + "ccm": + [ + 1.54659, -0.17707, -0.36953, + -0.51471, 1.72733, -0.21262, + 0.06667, -0.92279, 1.85612 + ] + } + ] + } + } + ] +}
\ No newline at end of file diff --git a/src/ipa/rpi/vc4/data/imx378.json b/src/ipa/rpi/vc4/data/imx378.json index f7b68011..363b47e1 100644 --- a/src/ipa/rpi/vc4/data/imx378.json +++ b/src/ipa/rpi/vc4/data/imx378.json @@ -133,15 +133,24 @@ { "centre-weighted": { - "weights": [ 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 ] + "weights": + [ + 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 + ] }, "spot": { - "weights": [ 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ] + "weights": + [ + 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 + ] }, "matrix": { - "weights": [ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ] + "weights": + [ + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 + ] } }, "exposure_modes": diff --git a/src/ipa/rpi/vc4/data/imx415.json b/src/ipa/rpi/vc4/data/imx415.json new file mode 100755 index 00000000..6ed16b17 --- /dev/null +++ b/src/ipa/rpi/vc4/data/imx415.json @@ -0,0 +1,413 @@ +{ + "version": 2.0, + "target": "bcm2835", + "algorithms": [ + { + "rpi.black_level": + { + 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a/src/ipa/rpi/vc4/data/imx462.json b/src/ipa/rpi/vc4/data/imx462.json new file mode 100644 index 00000000..40a56842 --- /dev/null +++ b/src/ipa/rpi/vc4/data/imx462.json @@ -0,0 +1,215 @@ +{ + "version": 2.0, + "target": "bcm2835", + "description": "This is an interim tuning only. 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\ No newline at end of file diff --git a/src/ipa/rpi/vc4/data/imx477.json b/src/ipa/rpi/vc4/data/imx477.json index 0e39d419..fa25ee86 100644 --- a/src/ipa/rpi/vc4/data/imx477.json +++ b/src/ipa/rpi/vc4/data/imx477.json @@ -115,16 +115,16 @@ "ct_curve": [ 2360.0, 0.6009, 0.3093, - 2848.0, 0.5071, 0.4000, + 2848.0, 0.5071, 0.4, 2903.0, 0.4905, 0.4392, 3628.0, 0.4261, 0.5564, 3643.0, 0.4228, 0.5623, - 4660.0, 0.3529, 0.6800, - 5579.0, 0.3227, 0.7000, - 6125.0, 0.3129, 0.7100, - 6671.0, 0.3065, 0.7200, - 7217.0, 0.3014, 0.7300, - 7763.0, 0.2950, 0.7400, + 4660.0, 0.3529, 0.68, + 5579.0, 0.3227, 0.7, + 6125.0, 0.3129, 0.71, + 6671.0, 0.3065, 0.72, + 7217.0, 0.3014, 0.73, + 7763.0, 0.295, 0.74, 9505.0, 0.2524, 0.7856 ], "sensitivity_r": 1.05, @@ -136,93 +136,306 @@ { "rpi.agc": { - "metering_modes": - { - "centre-weighted": - { - "weights": [ 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 ] - }, - "spot": - { - "weights": [ 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ] - }, - "matrix": - { - "weights": [ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ] - 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\ No newline at end of file diff --git a/src/ipa/rpi/vc4/data/imx477_noir.json b/src/ipa/rpi/vc4/data/imx477_noir.json index 52d7f072..472f33fe 100644 --- a/src/ipa/rpi/vc4/data/imx477_noir.json +++ b/src/ipa/rpi/vc4/data/imx477_noir.json @@ -47,93 +47,306 @@ { "rpi.agc": { - "metering_modes": - { - "centre-weighted": - { - "weights": [ 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 ] - }, - "spot": - { - "weights": [ 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ] - }, - "matrix": - { - "weights": [ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ] - } - }, - "exposure_modes": - { - "normal": - { - "shutter": [ 100, 10000, 30000, 60000, 66666 ], - "gain": [ 1.0, 2.0, 4.0, 6.0, 8.0 ] - }, - "short": + "channels": [ { - "shutter": [ 100, 5000, 10000, 20000, 33333 ], - "gain": [ 1.0, 2.0, 4.0, 6.0, 8.0 ] + "metering_modes": + { + "centre-weighted": + { + "weights": + [ + 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 + ] + }, + "spot": + { + "weights": + [ + 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 + ] + }, + "matrix": + { + "weights": + [ + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 + ] + } + }, + "exposure_modes": + { + "normal": + { + "shutter": [ 100, 10000, 30000, 60000, 66666 ], + "gain": [ 1.0, 2.0, 4.0, 6.0, 8.0 ] + }, + "short": + { + "shutter": [ 100, 5000, 10000, 20000, 33333 ], + "gain": [ 1.0, 2.0, 4.0, 6.0, 8.0 ] + }, + "long": + { + "shutter": [ 100, 10000, 30000, 60000, 120000 ], + "gain": [ 1.0, 2.0, 4.0, 6.0, 12.0 ] + } + }, + "constraint_modes": + { + "normal": [ + { + "bound": "LOWER", + "q_lo": 0.98, + "q_hi": 1.0, + "y_target": + [ + 0, 0.3, + 1000, 0.3 + ] + } + ], + "highlight": [ + { + "bound": "LOWER", + "q_lo": 0.98, + "q_hi": 1.0, + "y_target": + [ + 0, 0.3, + 1000, 0.3 + ] + }, + { + "bound": "UPPER", + "q_lo": 0.98, + "q_hi": 1.0, + "y_target": + [ + 0, 0.8, + 1000, 0.8 + ] + } + ], + "shadows": [ + { + "bound": "LOWER", + "q_lo": 0.0, + "q_hi": 0.5, + "y_target": + [ + 0, 0.17, + 1000, 0.17 + ] + } + ] + }, + "y_target": + [ + 0, 0.16, + 1000, 0.165, + 10000, 0.17 + ] }, - 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} - ] - }, - "y_target": - [ - 0, 0.16, - 1000, 0.165, - 10000, 0.17 + }, + "y_target": + [ + 0, 0.16, + 1000, 0.165, + 10000, 0.17 + ] + } ] } }, @@ -424,6 +637,20 @@ }, { "rpi.sharpen": { } + }, + { + "rpi.hdr": + { + "MultiExposureUnmerged": + { + "cadence": [ 1, 2 ], + "channel_map": + { + "short": 1, + "long": 2 + } + } + } } ] -}
\ No newline at end of file +} diff --git a/src/ipa/rpi/vc4/data/imx477_scientific.json b/src/ipa/rpi/vc4/data/imx477_scientific.json index 26c692fd..9dc32eb1 100644 --- a/src/ipa/rpi/vc4/data/imx477_scientific.json +++ b/src/ipa/rpi/vc4/data/imx477_scientific.json @@ -148,15 +148,24 @@ { "centre-weighted": { - "weights": [ 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 ] + "weights": + [ + 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 + ] }, "spot": { - "weights": [ 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ] + "weights": + [ + 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 + ] }, "matrix": { - "weights": [ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ] + "weights": + [ + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 + ] } }, "exposure_modes": diff --git a/src/ipa/rpi/vc4/data/imx477_v1.json b/src/ipa/rpi/vc4/data/imx477_v1.json index d6402009..55e4adc1 100644 --- a/src/ipa/rpi/vc4/data/imx477_v1.json +++ b/src/ipa/rpi/vc4/data/imx477_v1.json @@ -138,15 +138,24 @@ { "centre-weighted": { - "weights": [ 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 ] + "weights": + [ + 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 + ] }, "spot": { - "weights": [ 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ] + "weights": + [ + 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 + ] }, "matrix": { - "weights": [ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ] + "weights": + [ + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 + ] } }, "exposure_modes": diff --git a/src/ipa/rpi/vc4/data/imx519.json b/src/ipa/rpi/vc4/data/imx519.json index 1b0a7747..ce194256 100644 --- a/src/ipa/rpi/vc4/data/imx519.json +++ b/src/ipa/rpi/vc4/data/imx519.json @@ -133,15 +133,24 @@ { "centre-weighted": { - "weights": [ 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 ] + "weights": + [ + 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 + ] }, "spot": { - "weights": [ 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ] + "weights": + [ + 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 + ] }, "matrix": { - "weights": [ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ] + "weights": + [ + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 + ] } }, "exposure_modes": diff --git a/src/ipa/rpi/vc4/data/imx708.json b/src/ipa/rpi/vc4/data/imx708.json index c40a5994..4de6f079 100644 --- a/src/ipa/rpi/vc4/data/imx708.json +++ b/src/ipa/rpi/vc4/data/imx708.json @@ -139,85 +139,280 @@ { "rpi.agc": { - 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"long": { - "shutter": [ 1000, 30000, 60000, 90000, 120000 ], - "gain": [ 1.0, 2.0, 4.0, 6.0, 12.0 ] - } - }, - "constraint_modes": - { - "normal": [ + "base_ev": 1.5, + "metering_modes": { - "bound": "LOWER", - "q_lo": 0.98, - "q_hi": 1.0, - "y_target": - [ - 0, 0.2, - 1000, 0.2 - ] - } - ], - "highlight": [ + "centre-weighted": + { + "weights": + [ + 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 + ] + }, + "spot": + { + "weights": + [ + 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 + ] + }, + "matrix": + { + "weights": + [ + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 + ] + } + }, + "exposure_modes": { - "bound": "LOWER", - "q_lo": 0.98, - "q_hi": 1.0, - "y_target": - [ - 0, 0.2, - 1000, 0.2 - ] + "normal": + { + "shutter": [ 100, 15000, 30000, 60000, 120000 ], + "gain": [ 1.0, 1.0, 2.0, 4.0, 6.0 ] + }, + "short": + { + "shutter": [ 100, 5000, 10000, 20000, 120000 ], + "gain": [ 1.0, 2.0, 4.0, 6.0, 6.0 ] + }, + "long": + { + "shutter": [ 1000, 30000, 60000, 90000, 120000 ], + "gain": [ 1.0, 2.0, 4.0, 6.0, 12.0 ] + } }, + "constraint_modes": { - "bound": "UPPER", - "q_lo": 0.98, - "q_hi": 1.0, - "y_target": - [ - 0, 0.8, - 1000, 0.8 + "normal": [ + { + "bound": "LOWER", + "q_lo": 0.98, + "q_hi": 1.0, + "y_target": + [ + 0, 0.2, + 1000, 0.2 + ] + } + ], + "highlight": [ + { + "bound": "LOWER", + "q_lo": 0.98, + "q_hi": 1.0, + "y_target": + [ + 0, 0.2, + 1000, 0.2 + ] + }, + { + "bound": "UPPER", + "q_lo": 0.98, + "q_hi": 1.0, + "y_target": + [ + 0, 0.8, + 1000, 0.8 + ] + } ] - } - ] - }, - "y_target": - [ - 0, 0.16, - 1000, 0.165, - 10000, 0.17 - ], - "startup_frames": 5, - "convergence_frames": 6, - "speed": 0.15 + }, + "y_target": + [ + 0, 0.16, + 1000, 0.165, + 10000, 0.17 + ], + "startup_frames": 5, + "convergence_frames": 6, + "speed": 0.15 + } + ] } }, { @@ -457,6 +652,20 @@ "skip_frames": 5, "map": [ 0.0, 445, 15.0, 925 ] } + }, + { + "rpi.hdr": + { + "MultiExposureUnmerged": + { + "cadence": [ 1, 2 ], + "channel_map": + { + "short": 1, + "long": 2 + } + } + } } ] -} +}
\ No newline at end of file diff --git a/src/ipa/rpi/vc4/data/imx708_noir.json b/src/ipa/rpi/vc4/data/imx708_noir.json index 8d498153..7b7ee874 100644 --- a/src/ipa/rpi/vc4/data/imx708_noir.json +++ b/src/ipa/rpi/vc4/data/imx708_noir.json @@ -139,85 +139,280 @@ { "rpi.agc": { - "metering_modes": - { - "centre-weighted": - { - "weights": [ 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 ] - }, - "spot": - { - "weights": [ 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ] - }, - "matrix": - { - "weights": [ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ] - } - }, - "exposure_modes": - { - "normal": + "channels": [ { - "shutter": [ 100, 15000, 30000, 60000, 120000 ], - "gain": [ 1.0, 1.0, 2.0, 4.0, 6.0 ] + "metering_modes": + { + "centre-weighted": + { + "weights": + [ + 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 + ] + }, + "spot": + { + "weights": + [ + 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 + ] + }, + "matrix": + { + "weights": + [ + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 + ] + } + }, + "exposure_modes": + { + "normal": + { + "shutter": [ 100, 15000, 30000, 60000, 120000 ], + "gain": [ 1.0, 1.0, 2.0, 4.0, 6.0 ] + }, + "short": + { + "shutter": [ 100, 5000, 10000, 20000, 120000 ], + "gain": [ 1.0, 2.0, 4.0, 6.0, 6.0 ] + }, + "long": + { + "shutter": [ 1000, 30000, 60000, 90000, 120000 ], + "gain": [ 1.0, 2.0, 4.0, 6.0, 12.0 ] + } + }, + "constraint_modes": + { + "normal": [ + { + "bound": "LOWER", + "q_lo": 0.98, + "q_hi": 1.0, + "y_target": + [ + 0, 0.2, + 1000, 0.2 + ] + } + ], + "highlight": [ + { + "bound": "LOWER", + "q_lo": 0.98, + "q_hi": 1.0, + "y_target": + [ + 0, 0.2, + 1000, 0.2 + ] + }, + { + "bound": "UPPER", + "q_lo": 0.98, + "q_hi": 1.0, + "y_target": + [ + 0, 0.8, + 1000, 0.8 + ] + } + ] + }, + "y_target": + [ + 0, 0.16, + 1000, 0.165, + 10000, 0.17 + ], + "startup_frames": 5, + "convergence_frames": 6, + "speed": 0.15 }, - 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"long": { - "shutter": [ 1000, 30000, 60000, 90000, 120000 ], - "gain": [ 1.0, 2.0, 4.0, 6.0, 12.0 ] - } - }, - "constraint_modes": - { - "normal": [ + "base_ev": 1.5, + "metering_modes": { - "bound": "LOWER", - "q_lo": 0.98, - "q_hi": 1.0, - "y_target": - [ - 0, 0.2, - 1000, 0.2 - ] - } - ], - "highlight": [ + "centre-weighted": + { + "weights": + [ + 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 + ] + }, + "spot": + { + "weights": + [ + 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 + ] + }, + "matrix": + { + "weights": + [ + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 + ] + } + }, + "exposure_modes": { - "bound": "LOWER", - "q_lo": 0.98, - "q_hi": 1.0, - "y_target": - [ - 0, 0.2, - 1000, 0.2 - ] + "normal": + { + "shutter": [ 100, 15000, 30000, 60000, 120000 ], + "gain": [ 1.0, 1.0, 2.0, 4.0, 6.0 ] + }, + "short": + { + "shutter": [ 100, 5000, 10000, 20000, 120000 ], + "gain": [ 1.0, 2.0, 4.0, 6.0, 6.0 ] + }, + "long": + { + "shutter": [ 1000, 30000, 60000, 90000, 120000 ], + "gain": [ 1.0, 2.0, 4.0, 6.0, 12.0 ] + } }, + "constraint_modes": { - "bound": "UPPER", - "q_lo": 0.98, - "q_hi": 1.0, - "y_target": - [ - 0, 0.8, - 1000, 0.8 + "normal": [ + { + "bound": "LOWER", + "q_lo": 0.98, + "q_hi": 1.0, + "y_target": + [ + 0, 0.2, + 1000, 0.2 + ] + } + ], + "highlight": [ + { + "bound": "LOWER", + "q_lo": 0.98, + "q_hi": 1.0, + "y_target": + [ + 0, 0.2, + 1000, 0.2 + ] + }, + { + "bound": "UPPER", + "q_lo": 0.98, + "q_hi": 1.0, + "y_target": + [ + 0, 0.8, + 1000, 0.8 + ] + } ] - } - ] - }, - "y_target": - [ - 0, 0.16, - 1000, 0.165, - 10000, 0.17 - ], - "startup_frames": 5, - "convergence_frames": 6, - "speed": 0.15 + }, + "y_target": + [ + 0, 0.16, + 1000, 0.165, + 10000, 0.17 + ], + "startup_frames": 5, + "convergence_frames": 6, + "speed": 0.15 + } + ] } }, { @@ -556,6 +751,20 @@ "skip_frames": 5, "map": [ 0.0, 445, 15.0, 925 ] } + }, + { + "rpi.hdr": + { + "MultiExposureUnmerged": + { + "cadence": [ 1, 2 ], + "channel_map": + { + "short": 1, + "long": 2 + } + } + } } ] -} +}
\ No newline at end of file diff --git a/src/ipa/rpi/vc4/data/imx708_wide.json b/src/ipa/rpi/vc4/data/imx708_wide.json index 65543628..6f45aafc 100644 --- a/src/ipa/rpi/vc4/data/imx708_wide.json +++ b/src/ipa/rpi/vc4/data/imx708_wide.json @@ -129,85 +129,280 @@ { "rpi.agc": { - "metering_modes": - { - "centre-weighted": - { - "weights": [ 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 ] - }, - "spot": - { - "weights": [ 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ] - }, - "matrix": - { - "weights": [ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ] - } - }, - "exposure_modes": - { - "normal": + "channels": [ { - "shutter": [ 100, 15000, 30000, 60000, 120000 ], - "gain": [ 1.0, 1.0, 2.0, 4.0, 6.0 ] + "metering_modes": + { + "centre-weighted": + { + "weights": + [ + 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 + ] + }, + "spot": + { + "weights": + [ + 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 + ] + }, + "matrix": + { + "weights": + [ + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 + ] + } + }, + "exposure_modes": + { + "normal": + { + "shutter": [ 100, 15000, 30000, 60000, 120000 ], + "gain": [ 1.0, 1.0, 2.0, 4.0, 6.0 ] + }, + "short": + { + "shutter": [ 100, 5000, 10000, 20000, 120000 ], + "gain": [ 1.0, 2.0, 4.0, 6.0, 6.0 ] + }, + "long": + { + "shutter": [ 1000, 30000, 60000, 90000, 120000 ], + "gain": [ 1.0, 2.0, 4.0, 6.0, 12.0 ] + } + }, + "constraint_modes": + { + "normal": [ + { + "bound": "LOWER", + "q_lo": 0.98, + "q_hi": 1.0, + "y_target": + [ + 0, 0.2, + 1000, 0.2 + ] + } + ], + "highlight": [ + { + "bound": "LOWER", + "q_lo": 0.98, + "q_hi": 1.0, + "y_target": + [ + 0, 0.2, + 1000, 0.2 + ] + }, + { + "bound": "UPPER", + "q_lo": 0.98, + "q_hi": 1.0, + "y_target": + [ + 0, 0.8, + 1000, 0.8 + ] + } + ] + }, + "y_target": + [ + 0, 0.16, + 1000, 0.165, + 10000, 0.17 + ], + "startup_frames": 5, + "convergence_frames": 6, + "speed": 0.15 }, - 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"long": { - "shutter": [ 1000, 30000, 60000, 90000, 120000 ], - "gain": [ 1.0, 2.0, 4.0, 6.0, 12.0 ] - } - }, - "constraint_modes": - { - "normal": [ + "base_ev": 1.5, + "metering_modes": { - "bound": "LOWER", - "q_lo": 0.98, - "q_hi": 1.0, - "y_target": - [ - 0, 0.2, - 1000, 0.2 - ] - } - ], - "highlight": [ + "centre-weighted": + { + "weights": + [ + 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 + ] + }, + "spot": + { + "weights": + [ + 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 + ] + }, + "matrix": + { + "weights": + [ + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 + ] + } + }, + "exposure_modes": { - "bound": "LOWER", - "q_lo": 0.98, - "q_hi": 1.0, - "y_target": - [ - 0, 0.2, - 1000, 0.2 - ] + "normal": + { + "shutter": [ 100, 15000, 30000, 60000, 120000 ], + "gain": [ 1.0, 1.0, 2.0, 4.0, 6.0 ] + }, + "short": + { + "shutter": [ 100, 5000, 10000, 20000, 120000 ], + "gain": [ 1.0, 2.0, 4.0, 6.0, 6.0 ] + }, + "long": + { + "shutter": [ 1000, 30000, 60000, 90000, 120000 ], + "gain": [ 1.0, 2.0, 4.0, 6.0, 12.0 ] + } }, + "constraint_modes": { - "bound": "UPPER", - "q_lo": 0.98, - "q_hi": 1.0, - "y_target": - [ - 0, 0.8, - 1000, 0.8 + "normal": [ + { + "bound": "LOWER", + "q_lo": 0.98, + "q_hi": 1.0, + "y_target": + [ + 0, 0.2, + 1000, 0.2 + ] + } + ], + "highlight": [ + { + "bound": "LOWER", + "q_lo": 0.98, + "q_hi": 1.0, + "y_target": + [ + 0, 0.2, + 1000, 0.2 + ] + }, + { + "bound": "UPPER", + "q_lo": 0.98, + "q_hi": 1.0, + "y_target": + [ + 0, 0.8, + 1000, 0.8 + ] + } ] - } - ] - }, - "y_target": - [ - 0, 0.16, - 1000, 0.165, - 10000, 0.17 - ], - "startup_frames": 5, - "convergence_frames": 6, - "speed": 0.15 + }, + "y_target": + [ + 0, 0.16, + 1000, 0.165, + 10000, 0.17 + ], + "startup_frames": 5, + "convergence_frames": 6, + "speed": 0.15 + } + ] } }, { @@ -468,6 +663,20 @@ "skip_frames": 5, "map": [ 0.0, 420, 35.0, 920 ] } + }, + { + "rpi.hdr": + { + "MultiExposureUnmerged": + { + "cadence": [ 1, 2 ], + "channel_map": + { + "short": 1, + "long": 2 + } + } + } } ] -} +}
\ No newline at end of file diff --git a/src/ipa/rpi/vc4/data/imx708_wide_noir.json b/src/ipa/rpi/vc4/data/imx708_wide_noir.json index 49442c0f..b9a5227e 100644 --- a/src/ipa/rpi/vc4/data/imx708_wide_noir.json +++ b/src/ipa/rpi/vc4/data/imx708_wide_noir.json @@ -129,85 +129,280 @@ { "rpi.agc": { - "metering_modes": - { - "centre-weighted": - { - "weights": [ 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 ] - }, - "spot": - { - "weights": [ 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ] - }, - "matrix": - { - "weights": [ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ] - } - }, - "exposure_modes": - { - "normal": + "channels": [ { - "shutter": [ 100, 15000, 30000, 60000, 120000 ], - "gain": [ 1.0, 1.0, 2.0, 4.0, 6.0 ] + "metering_modes": + { + "centre-weighted": + { + "weights": + [ + 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 + ] + }, + "spot": + { + "weights": + [ + 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 + ] + }, + "matrix": + { + "weights": + [ + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 + ] + } + }, + "exposure_modes": + { + "normal": + { + "shutter": [ 100, 15000, 30000, 60000, 120000 ], + "gain": [ 1.0, 1.0, 2.0, 4.0, 6.0 ] + }, + "short": + { + "shutter": [ 100, 5000, 10000, 20000, 120000 ], + "gain": [ 1.0, 2.0, 4.0, 6.0, 6.0 ] + }, + "long": + { + "shutter": [ 1000, 30000, 60000, 90000, 120000 ], + "gain": [ 1.0, 2.0, 4.0, 6.0, 12.0 ] + } + }, + "constraint_modes": + { + "normal": [ + { + "bound": "LOWER", + "q_lo": 0.98, + "q_hi": 1.0, + "y_target": + [ + 0, 0.2, + 1000, 0.2 + ] + } + ], + "highlight": [ + { + "bound": "LOWER", + "q_lo": 0.98, + "q_hi": 1.0, + "y_target": + [ + 0, 0.2, + 1000, 0.2 + ] + }, + { + "bound": "UPPER", + "q_lo": 0.98, + "q_hi": 1.0, + "y_target": + [ + 0, 0.8, + 1000, 0.8 + ] + } + ] + }, + "y_target": + [ + 0, 0.16, + 1000, 0.165, + 10000, 0.17 + ], + "startup_frames": 5, + "convergence_frames": 6, + "speed": 0.15 }, - 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"long": { - "shutter": [ 1000, 30000, 60000, 90000, 120000 ], - "gain": [ 1.0, 2.0, 4.0, 6.0, 12.0 ] - } - }, - "constraint_modes": - { - "normal": [ + "base_ev": 1.5, + "metering_modes": { - "bound": "LOWER", - "q_lo": 0.98, - "q_hi": 1.0, - "y_target": - [ - 0, 0.2, - 1000, 0.2 - ] - } - ], - "highlight": [ + "centre-weighted": + { + "weights": + [ + 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 + ] + }, + "spot": + { + "weights": + [ + 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 + ] + }, + "matrix": + { + "weights": + [ + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 + ] + } + }, + "exposure_modes": { - "bound": "LOWER", - "q_lo": 0.98, - "q_hi": 1.0, - "y_target": - [ - 0, 0.2, - 1000, 0.2 - ] + "normal": + { + "shutter": [ 100, 15000, 30000, 60000, 120000 ], + "gain": [ 1.0, 1.0, 2.0, 4.0, 6.0 ] + }, + "short": + { + "shutter": [ 100, 5000, 10000, 20000, 120000 ], + "gain": [ 1.0, 2.0, 4.0, 6.0, 6.0 ] + }, + "long": + { + "shutter": [ 1000, 30000, 60000, 90000, 120000 ], + "gain": [ 1.0, 2.0, 4.0, 6.0, 12.0 ] + } }, + "constraint_modes": { - "bound": "UPPER", - "q_lo": 0.98, - "q_hi": 1.0, - "y_target": - [ - 0, 0.8, - 1000, 0.8 + "normal": [ + { + "bound": "LOWER", + "q_lo": 0.98, + "q_hi": 1.0, + "y_target": + [ + 0, 0.2, + 1000, 0.2 + ] + } + ], + "highlight": [ + { + "bound": "LOWER", + "q_lo": 0.98, + "q_hi": 1.0, + "y_target": + [ + 0, 0.2, + 1000, 0.2 + ] + }, + { + "bound": "UPPER", + "q_lo": 0.98, + "q_hi": 1.0, + "y_target": + [ + 0, 0.8, + 1000, 0.8 + ] + } ] - } - ] - }, - "y_target": - [ - 0, 0.16, - 1000, 0.165, - 10000, 0.17 - ], - "startup_frames": 5, - "convergence_frames": 6, - "speed": 0.15 + }, + "y_target": + [ + 0, 0.16, + 1000, 0.165, + 10000, 0.17 + ], + "startup_frames": 5, + "convergence_frames": 6, + "speed": 0.15 + } + ] } }, { @@ -459,6 +654,20 @@ "skip_frames": 5, "map": [ 0.0, 420, 35.0, 920 ] } + }, + { + "rpi.hdr": + { + "MultiExposureUnmerged": + { + "cadence": [ 1, 2 ], + "channel_map": + { + "short": 1, + "long": 2 + } + } + } } ] -} +}
\ No newline at end of file diff --git a/src/ipa/rpi/vc4/data/meson.build b/src/ipa/rpi/vc4/data/meson.build index bcf5658b..7a8001ee 100644 --- a/src/ipa/rpi/vc4/data/meson.build +++ b/src/ipa/rpi/vc4/data/meson.build @@ -3,10 +3,14 @@ conf_files = files([ 'imx219.json', 'imx219_noir.json', + 'imx283.json', 'imx290.json', 'imx296.json', 'imx296_mono.json', + 'imx327.json', 'imx378.json', + 'imx415.json', + 'imx462.json', 'imx477.json', 'imx477_noir.json', 'imx477_scientific.json', @@ -17,10 +21,13 @@ conf_files = files([ 'imx708_wide_noir.json', 'ov5647.json', 'ov5647_noir.json', + 'ov64a40.json', + 'ov7251_mono.json', 'ov9281_mono.json', 'se327m12.json', 'uncalibrated.json', ]) install_data(conf_files, - install_dir : ipa_data_dir / 'rpi' / 'vc4') + install_dir : ipa_data_dir / 'rpi' / 'vc4', + install_tag : 'runtime') diff --git a/src/ipa/rpi/vc4/data/ov5647.json b/src/ipa/rpi/vc4/data/ov5647.json index a1b42a18..40c6059c 100644 --- a/src/ipa/rpi/vc4/data/ov5647.json +++ b/src/ipa/rpi/vc4/data/ov5647.json @@ -131,95 +131,308 @@ { "rpi.agc": { - 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\ No newline at end of file +} diff --git a/src/ipa/rpi/vc4/data/ov5647_noir.json b/src/ipa/rpi/vc4/data/ov5647_noir.json index a6c6722f..488b7119 100644 --- a/src/ipa/rpi/vc4/data/ov5647_noir.json +++ b/src/ipa/rpi/vc4/data/ov5647_noir.json @@ -51,15 +51,24 @@ { "centre-weighted": { - "weights": [ 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 ] + "weights": + [ + 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 + ] }, "spot": { - "weights": [ 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ] + "weights": + [ + 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 + ] }, "matrix": { - "weights": [ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ] + "weights": + [ + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 + ] } }, "exposure_modes": diff --git a/src/ipa/rpi/vc4/data/ov64a40.json b/src/ipa/rpi/vc4/data/ov64a40.json new file mode 100644 index 00000000..096f0b1e --- /dev/null +++ b/src/ipa/rpi/vc4/data/ov64a40.json @@ -0,0 +1,422 @@ +{ + "version": 2.0, + "target": "bcm2835", + "algorithms": [ + { + 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+ -0.37928, 1.78795, -0.40867, + -0.11537, -0.74686, 1.86223 + ] + }, + { + "ct": 6500, + "ccm": + [ + 1.69813, -0.27304, -0.42509, + -0.23364, 1.87586, -0.64221, + -0.07587, -0.62348, 1.69935 + ] + } + ] + } + }, + { + "rpi.sharpen": { } + }, + { + "rpi.af": + { + "ranges": + { + "normal": + { + "min": 0.0, + "max": 12.0, + "default": 1.0 + }, + "macro": + { + "min": 3.0, + "max": 15.0, + "default": 4.0 + } + }, + "speeds": + { + "normal": + { + "step_coarse": 1.0, + "step_fine": 0.25, + "contrast_ratio": 0.75, + "pdaf_gain": -0.02, + "pdaf_squelch": 0.125, + "max_slew": 2.0, + "pdaf_frames": 0, + "dropout_frames": 0, + "step_frames": 4 + } + }, + "conf_epsilon": 8, + "conf_thresh": 16, + "conf_clip": 512, + "skip_frames": 5, + "map": [ 0.0, 0, 15.0, 1023 ] + } + } + ] +}
\ No newline at end of file diff --git a/src/ipa/rpi/vc4/data/ov7251_mono.json b/src/ipa/rpi/vc4/data/ov7251_mono.json new file mode 100644 index 00000000..a9d05a01 --- /dev/null +++ b/src/ipa/rpi/vc4/data/ov7251_mono.json @@ -0,0 +1,136 @@ +{ + "version": 2.0, + "target": "bcm2835", + "algorithms": [ + { + "rpi.black_level": + { + "black_level": 4096 + } + }, + { + "rpi.lux": + { + "reference_shutter_speed": 2000, + "reference_gain": 1.0, + "reference_aperture": 1.0, + "reference_lux": 800, + "reference_Y": 20000 + } + }, + { + "rpi.noise": + { + "reference_constant": 0, + "reference_slope": 2.5 + } + }, + { + "rpi.sdn": { } + }, + { + "rpi.agc": + { + "metering_modes": + { + "centre-weighted": + { + "weights": + [ + 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 + ] + } + }, + "exposure_modes": + { + "normal": + { + "shutter": [ 100, 15000, 30000, 60000, 120000 ], + "gain": [ 1.0, 2.0, 3.0, 4.0, 8.0 ] + }, + "short": + { + "shutter": [ 100, 5000, 10000, 20000, 30000 ], + "gain": [ 1.0, 2.0, 4.0, 6.0, 8.0 ] + }, + "long": + { + "shutter": [ 1000, 30000, 60000, 90000, 120000 ], + "gain": [ 1.0, 2.0, 4.0, 6.0, 12.0 ] + } + }, + "constraint_modes": + { + "normal": [ + { + "bound": "LOWER", + "q_lo": 0.98, + "q_hi": 1.0, + "y_target": + [ + 0, 0.4, + 1000, 0.4 + ] + } + ] + }, + "y_target": + [ + 0, 0.16, + 1000, 0.165, + 10000, 0.17 + ] + } + }, + { + "rpi.alsc": + { + "n_iter": 0, + "luminance_strength": 1.0, + "corner_strength": 1.5 + } + }, + { + "rpi.contrast": + { + "ce_enable": 0, + "gamma_curve": + [ + 0, 0, + 1024, 5040, + 2048, 9338, + 3072, 12356, + 4096, 15312, + 5120, 18051, + 6144, 20790, + 7168, 23193, + 8192, 25744, + 9216, 27942, + 10240, 30035, + 11264, 32005, + 12288, 33975, + 13312, 35815, + 14336, 37600, + 15360, 39168, + 16384, 40642, + 18432, 43379, + 20480, 45749, + 22528, 47753, + 24576, 49621, + 26624, 51253, + 28672, 52698, + 30720, 53796, + 32768, 54876, + 36864, 57012, + 40960, 58656, + 45056, 59954, + 49152, 61183, + 53248, 62355, + 57344, 63419, + 61440, 64476, + 65535, 65535 + ] + } + } + ] +}
\ No newline at end of file diff --git a/src/ipa/rpi/vc4/data/ov9281_mono.json b/src/ipa/rpi/vc4/data/ov9281_mono.json index 2b7292ec..a9d05a01 100644 --- a/src/ipa/rpi/vc4/data/ov9281_mono.json +++ b/src/ipa/rpi/vc4/data/ov9281_mono.json @@ -35,7 +35,10 @@ { "centre-weighted": { - "weights": [ 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 ] + "weights": + [ + 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 + ] } }, "exposure_modes": diff --git a/src/ipa/rpi/vc4/data/se327m12.json b/src/ipa/rpi/vc4/data/se327m12.json index 8552ed92..948169db 100644 --- a/src/ipa/rpi/vc4/data/se327m12.json +++ b/src/ipa/rpi/vc4/data/se327m12.json @@ -133,15 +133,24 @@ { "centre-weighted": { - "weights": [ 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 ] + "weights": + [ + 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 + ] }, "spot": { - "weights": [ 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ] + "weights": + [ + 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 + ] }, "matrix": { - "weights": [ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 ] + "weights": + [ + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 + ] } }, "exposure_modes": diff --git a/src/ipa/rpi/vc4/data/uncalibrated.json b/src/ipa/rpi/vc4/data/uncalibrated.json index 7654defa..cdc56b32 100644 --- a/src/ipa/rpi/vc4/data/uncalibrated.json +++ b/src/ipa/rpi/vc4/data/uncalibrated.json @@ -22,7 +22,10 @@ { "centre-weighted": { - "weights": [ 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 ] + "weights": + [ + 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0 + ] } }, "exposure_modes": diff --git a/src/ipa/rpi/vc4/meson.build b/src/ipa/rpi/vc4/meson.build index 590e9197..c10fa17e 100644 --- a/src/ipa/rpi/vc4/meson.build +++ b/src/ipa/rpi/vc4/meson.build @@ -15,7 +15,6 @@ vc4_ipa_libs = [ vc4_ipa_includes = [ ipa_includes, - libipa_includes, ] vc4_ipa_sources = files([ @@ -24,12 +23,10 @@ vc4_ipa_sources = files([ vc4_ipa_includes += include_directories('..') -mod = shared_module(ipa_name, - [vc4_ipa_sources, libcamera_generated_ipa_headers], +mod = shared_module(ipa_name, vc4_ipa_sources, name_prefix : '', include_directories : vc4_ipa_includes, - dependencies : vc4_ipa_deps, - link_with : libipa, + dependencies : [vc4_ipa_deps, libipa_dep], link_whole : vc4_ipa_libs, install : true, install_dir : ipa_install_dir) diff --git a/src/ipa/rpi/vc4/vc4.cpp b/src/ipa/rpi/vc4/vc4.cpp index 4a4d720c..ba43e474 100644 --- a/src/ipa/rpi/vc4/vc4.cpp +++ b/src/ipa/rpi/vc4/vc4.cpp @@ -2,7 +2,7 @@ /* * Copyright (C) 2019-2021, Raspberry Pi Ltd * - * rpi.cpp - Raspberry Pi VC4/BCM2835 ISP IPA. + * Raspberry Pi VC4/BCM2835 ISP IPA. */ #include <string.h> @@ -11,6 +11,8 @@ #include <linux/bcm2835-isp.h> #include <libcamera/base/log.h> +#include <libcamera/base/span.h> +#include <libcamera/control_ids.h> #include <libcamera/ipa/ipa_module_info.h> #include "common/ipa_base.h" @@ -244,12 +246,48 @@ RPiController::StatisticsPtr IpaVc4::platformProcessStats(Span<uint8_t> mem) stats->focus_stats[i].contrast_val_num[1][1], stats->focus_stats[i].contrast_val_num[1][0] }); + if (statsMetadataOutput_) { + Span<const uint8_t> statsSpan(reinterpret_cast<const uint8_t *>(stats), + sizeof(bcm2835_isp_stats)); + libcameraMetadata_.set(controls::rpi::Bcm2835StatsOutput, statsSpan); + } + return statistics; } -void IpaVc4::handleControls([[maybe_unused]] const ControlList &controls) +void IpaVc4::handleControls(const ControlList &controls) { - /* No controls require any special updates to the hardware configuration. */ + static const std::map<int32_t, RPiController::DenoiseMode> DenoiseModeTable = { + { controls::draft::NoiseReductionModeOff, RPiController::DenoiseMode::Off }, + { controls::draft::NoiseReductionModeFast, RPiController::DenoiseMode::ColourFast }, + { controls::draft::NoiseReductionModeHighQuality, RPiController::DenoiseMode::ColourHighQuality }, + { controls::draft::NoiseReductionModeMinimal, RPiController::DenoiseMode::ColourOff }, + { controls::draft::NoiseReductionModeZSL, RPiController::DenoiseMode::ColourHighQuality }, + }; + + for (auto const &ctrl : controls) { + switch (ctrl.first) { + case controls::draft::NOISE_REDUCTION_MODE: { + RPiController::DenoiseAlgorithm *sdn = dynamic_cast<RPiController::DenoiseAlgorithm *>( + controller_.getAlgorithm("SDN")); + /* Some platforms may have a combined "denoise" algorithm instead. */ + if (!sdn) + sdn = dynamic_cast<RPiController::DenoiseAlgorithm *>( + controller_.getAlgorithm("denoise")); + if (!sdn) { + LOG(IPARPI, Warning) + << "Could not set NOISE_REDUCTION_MODE - no SDN algorithm"; + return; + } + + int32_t idx = ctrl.second.get<int32_t>(); + auto mode = DenoiseModeTable.find(idx); + if (mode != DenoiseModeTable.end()) + sdn->setMode(mode->second); + break; + } + } + } } bool IpaVc4::validateIspControls() @@ -545,7 +583,7 @@ extern "C" { const struct IPAModuleInfo ipaModuleInfo = { IPA_MODULE_API_VERSION, 1, - "PipelineHandlerVc4", + "rpi/vc4", "rpi/vc4", }; diff --git a/src/ipa/simple/algorithms/agc.cpp b/src/ipa/simple/algorithms/agc.cpp new file mode 100644 index 00000000..c46bb0eb --- /dev/null +++ b/src/ipa/simple/algorithms/agc.cpp @@ -0,0 +1,146 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +/* + * Copyright (C) 2024, Red Hat Inc. + * + * Exposure and gain + */ + +#include "agc.h" + +#include <stdint.h> + +#include <libcamera/base/log.h> + +#include "control_ids.h" + +namespace libcamera { + +LOG_DEFINE_CATEGORY(IPASoftExposure) + +namespace ipa::soft::algorithms { + +/* + * The number of bins to use for the optimal exposure calculations. + */ +static constexpr unsigned int kExposureBinsCount = 5; + +/* + * The exposure is optimal when the mean sample value of the histogram is + * in the middle of the range. + */ +static constexpr float kExposureOptimal = kExposureBinsCount / 2.0; + +/* + * This implements the hysteresis for the exposure adjustment. + * It is small enough to have the exposure close to the optimal, and is big + * enough to prevent the exposure from wobbling around the optimal value. + */ +static constexpr float kExposureSatisfactory = 0.2; + +Agc::Agc() +{ +} + +void Agc::updateExposure(IPAContext &context, IPAFrameContext &frameContext, double exposureMSV) +{ + /* + * kExpDenominator of 10 gives ~10% increment/decrement; + * kExpDenominator of 5 - about ~20% + */ + static constexpr uint8_t kExpDenominator = 10; + static constexpr uint8_t kExpNumeratorUp = kExpDenominator + 1; + static constexpr uint8_t kExpNumeratorDown = kExpDenominator - 1; + + double next; + int32_t &exposure = frameContext.sensor.exposure; + double &again = frameContext.sensor.gain; + + if (exposureMSV < kExposureOptimal - kExposureSatisfactory) { + next = exposure * kExpNumeratorUp / kExpDenominator; + if (next - exposure < 1) + exposure += 1; + else + exposure = next; + if (exposure >= context.configuration.agc.exposureMax) { + next = again * kExpNumeratorUp / kExpDenominator; + if (next - again < context.configuration.agc.againMinStep) + again += context.configuration.agc.againMinStep; + else + again = next; + } + } + + if (exposureMSV > kExposureOptimal + kExposureSatisfactory) { + if (exposure == context.configuration.agc.exposureMax && + again > context.configuration.agc.againMin) { + next = again * kExpNumeratorDown / kExpDenominator; + if (again - next < context.configuration.agc.againMinStep) + again -= context.configuration.agc.againMinStep; + else + again = next; + } else { + next = exposure * kExpNumeratorDown / kExpDenominator; + if (exposure - next < 1) + exposure -= 1; + else + exposure = next; + } + } + + exposure = std::clamp(exposure, context.configuration.agc.exposureMin, + context.configuration.agc.exposureMax); + again = std::clamp(again, context.configuration.agc.againMin, + context.configuration.agc.againMax); + + LOG(IPASoftExposure, Debug) + << "exposureMSV " << exposureMSV + << " exp " << exposure << " again " << again; +} + +void Agc::process(IPAContext &context, + [[maybe_unused]] const uint32_t frame, + IPAFrameContext &frameContext, + const SwIspStats *stats, + ControlList &metadata) +{ + utils::Duration exposureTime = + context.configuration.agc.lineDuration * frameContext.sensor.exposure; + metadata.set(controls::ExposureTime, exposureTime.get<std::micro>()); + metadata.set(controls::AnalogueGain, frameContext.sensor.gain); + + /* + * Calculate Mean Sample Value (MSV) according to formula from: + * https://www.araa.asn.au/acra/acra2007/papers/paper84final.pdf + */ + const auto &histogram = stats->yHistogram; + const unsigned int blackLevelHistIdx = + context.activeState.blc.level / (256 / SwIspStats::kYHistogramSize); + const unsigned int histogramSize = + SwIspStats::kYHistogramSize - blackLevelHistIdx; + const unsigned int yHistValsPerBin = histogramSize / kExposureBinsCount; + const unsigned int yHistValsPerBinMod = + histogramSize / (histogramSize % kExposureBinsCount + 1); + int exposureBins[kExposureBinsCount] = {}; + unsigned int denom = 0; + unsigned int num = 0; + + for (unsigned int i = 0; i < histogramSize; i++) { + unsigned int idx = (i - (i / yHistValsPerBinMod)) / yHistValsPerBin; + exposureBins[idx] += histogram[blackLevelHistIdx + i]; + } + + for (unsigned int i = 0; i < kExposureBinsCount; i++) { + LOG(IPASoftExposure, Debug) << i << ": " << exposureBins[i]; + denom += exposureBins[i]; + num += exposureBins[i] * (i + 1); + } + + float exposureMSV = (denom == 0 ? 0 : static_cast<float>(num) / denom); + updateExposure(context, frameContext, exposureMSV); +} + +REGISTER_IPA_ALGORITHM(Agc, "Agc") + +} /* namespace ipa::soft::algorithms */ + +} /* namespace libcamera */ diff --git a/src/ipa/simple/algorithms/agc.h b/src/ipa/simple/algorithms/agc.h new file mode 100644 index 00000000..112d9f5a --- /dev/null +++ b/src/ipa/simple/algorithms/agc.h @@ -0,0 +1,33 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +/* + * Copyright (C) 2024, Red Hat Inc. + * + * Exposure and gain + */ + +#pragma once + +#include "algorithm.h" + +namespace libcamera { + +namespace ipa::soft::algorithms { + +class Agc : public Algorithm +{ +public: + Agc(); + ~Agc() = default; + + void process(IPAContext &context, const uint32_t frame, + IPAFrameContext &frameContext, + const SwIspStats *stats, + ControlList &metadata) override; + +private: + void updateExposure(IPAContext &context, IPAFrameContext &frameContext, double exposureMSV); +}; + +} /* namespace ipa::soft::algorithms */ + +} /* namespace libcamera */ diff --git a/src/ipa/simple/algorithms/algorithm.h b/src/ipa/simple/algorithms/algorithm.h new file mode 100644 index 00000000..41f63170 --- /dev/null +++ b/src/ipa/simple/algorithms/algorithm.h @@ -0,0 +1,22 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +/* + * Copyright (C) 2024 Red Hat, Inc. + * + * Software ISP control algorithm interface + */ + +#pragma once + +#include <libipa/algorithm.h> + +#include "module.h" + +namespace libcamera { + +namespace ipa::soft { + +using Algorithm = libcamera::ipa::Algorithm<Module>; + +} /* namespace ipa::soft */ + +} /* namespace libcamera */ diff --git a/src/ipa/simple/algorithms/awb.cpp b/src/ipa/simple/algorithms/awb.cpp new file mode 100644 index 00000000..cf567e89 --- /dev/null +++ b/src/ipa/simple/algorithms/awb.cpp @@ -0,0 +1,100 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +/* + * Copyright (C) 2024, Red Hat Inc. + * + * Auto white balance + */ + +#include "awb.h" + +#include <numeric> +#include <stdint.h> + +#include <libcamera/base/log.h> + +#include <libcamera/control_ids.h> + +#include "libipa/colours.h" +#include "simple/ipa_context.h" + +#include "control_ids.h" + +namespace libcamera { + +LOG_DEFINE_CATEGORY(IPASoftAwb) + +namespace ipa::soft::algorithms { + +int Awb::configure(IPAContext &context, + [[maybe_unused]] const IPAConfigInfo &configInfo) +{ + auto &gains = context.activeState.awb.gains; + gains = { { 1.0, 1.0, 1.0 } }; + + return 0; +} + +void Awb::prepare(IPAContext &context, + [[maybe_unused]] const uint32_t frame, + IPAFrameContext &frameContext, + [[maybe_unused]] DebayerParams *params) +{ + auto &gains = context.activeState.awb.gains; + /* Just report, the gains are applied in LUT algorithm. */ + frameContext.gains.red = gains.r(); + frameContext.gains.blue = gains.b(); +} + +void Awb::process(IPAContext &context, + [[maybe_unused]] const uint32_t frame, + IPAFrameContext &frameContext, + const SwIspStats *stats, + ControlList &metadata) +{ + const SwIspStats::Histogram &histogram = stats->yHistogram; + const uint8_t blackLevel = context.activeState.blc.level; + + const float maxGain = 1024.0; + const float mdGains[] = { + static_cast<float>(frameContext.gains.red / maxGain), + static_cast<float>(frameContext.gains.blue / maxGain) + }; + metadata.set(controls::ColourGains, mdGains); + + /* + * Black level must be subtracted to get the correct AWB ratios, they + * would be off if they were computed from the whole brightness range + * rather than from the sensor range. + */ + const uint64_t nPixels = std::accumulate( + histogram.begin(), histogram.end(), 0); + const uint64_t offset = blackLevel * nPixels; + const uint64_t sumR = stats->sumR_ - offset / 4; + const uint64_t sumG = stats->sumG_ - offset / 2; + const uint64_t sumB = stats->sumB_ - offset / 4; + + /* + * Calculate red and blue gains for AWB. + * Clamp max gain at 4.0, this also avoids 0 division. + */ + auto &gains = context.activeState.awb.gains; + gains = { { + sumR <= sumG / 4 ? 4.0f : static_cast<float>(sumG) / sumR, + 1.0, + sumB <= sumG / 4 ? 4.0f : static_cast<float>(sumG) / sumB, + } }; + + RGB<double> rgbGains{ { 1 / gains.r(), 1 / gains.g(), 1 / gains.b() } }; + context.activeState.awb.temperatureK = estimateCCT(rgbGains); + metadata.set(controls::ColourTemperature, context.activeState.awb.temperatureK); + + LOG(IPASoftAwb, Debug) + << "gain R/B: " << gains << "; temperature: " + << context.activeState.awb.temperatureK; +} + +REGISTER_IPA_ALGORITHM(Awb, "Awb") + +} /* namespace ipa::soft::algorithms */ + +} /* namespace libcamera */ diff --git a/src/ipa/simple/algorithms/awb.h b/src/ipa/simple/algorithms/awb.h new file mode 100644 index 00000000..ad993f39 --- /dev/null +++ b/src/ipa/simple/algorithms/awb.h @@ -0,0 +1,36 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +/* + * Copyright (C) 2024-2025 Red Hat Inc. + * + * Auto white balance + */ + +#pragma once + +#include "algorithm.h" + +namespace libcamera { + +namespace ipa::soft::algorithms { + +class Awb : public Algorithm +{ +public: + Awb() = default; + ~Awb() = default; + + int configure(IPAContext &context, const IPAConfigInfo &configInfo) override; + void prepare(IPAContext &context, + const uint32_t frame, + IPAFrameContext &frameContext, + DebayerParams *params) override; + void process(IPAContext &context, + const uint32_t frame, + IPAFrameContext &frameContext, + const SwIspStats *stats, + ControlList &metadata) override; +}; + +} /* namespace ipa::soft::algorithms */ + +} /* namespace libcamera */ diff --git a/src/ipa/simple/algorithms/blc.cpp b/src/ipa/simple/algorithms/blc.cpp new file mode 100644 index 00000000..8c1e9ed0 --- /dev/null +++ b/src/ipa/simple/algorithms/blc.cpp @@ -0,0 +1,107 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +/* + * Copyright (C) 2024-2025, Red Hat Inc. + * + * Black level handling + */ + +#include "blc.h" + +#include <numeric> + +#include <libcamera/base/log.h> + +#include "control_ids.h" + +namespace libcamera { + +namespace ipa::soft::algorithms { + +LOG_DEFINE_CATEGORY(IPASoftBL) + +BlackLevel::BlackLevel() +{ +} + +int BlackLevel::init([[maybe_unused]] IPAContext &context, + const YamlObject &tuningData) +{ + auto blackLevel = tuningData["blackLevel"].get<int16_t>(); + if (blackLevel.has_value()) { + /* + * Convert 16 bit values from the tuning file to 8 bit black + * level for the SoftISP. + */ + definedLevel_ = blackLevel.value() >> 8; + } + return 0; +} + +int BlackLevel::configure(IPAContext &context, + [[maybe_unused]] const IPAConfigInfo &configInfo) +{ + if (definedLevel_.has_value()) + context.configuration.black.level = definedLevel_; + context.activeState.blc.level = + context.configuration.black.level.value_or(255); + return 0; +} + +void BlackLevel::process(IPAContext &context, + [[maybe_unused]] const uint32_t frame, + IPAFrameContext &frameContext, + const SwIspStats *stats, + ControlList &metadata) +{ + /* Assign each of the R G G B channels as the same black level. */ + const int32_t blackLevel = context.activeState.blc.level * 256; + const int32_t blackLevels[] = { + blackLevel, blackLevel, blackLevel, blackLevel + }; + metadata.set(controls::SensorBlackLevels, blackLevels); + + if (context.configuration.black.level.has_value()) + return; + + if (frameContext.sensor.exposure == context.activeState.blc.lastExposure && + frameContext.sensor.gain == context.activeState.blc.lastGain) { + return; + } + + const SwIspStats::Histogram &histogram = stats->yHistogram; + + /* + * The constant is selected to be "good enough", not overly + * conservative or aggressive. There is no magic about the given value. + */ + constexpr float ignoredPercentage = 0.02; + const unsigned int total = + std::accumulate(begin(histogram), end(histogram), 0); + const unsigned int pixelThreshold = ignoredPercentage * total; + const unsigned int histogramRatio = 256 / SwIspStats::kYHistogramSize; + const unsigned int currentBlackIdx = + context.activeState.blc.level / histogramRatio; + + for (unsigned int i = 0, seen = 0; + i < currentBlackIdx && i < SwIspStats::kYHistogramSize; + i++) { + seen += histogram[i]; + if (seen >= pixelThreshold) { + context.activeState.blc.level = i * histogramRatio; + context.activeState.blc.lastExposure = frameContext.sensor.exposure; + context.activeState.blc.lastGain = frameContext.sensor.gain; + LOG(IPASoftBL, Debug) + << "Auto-set black level: " + << i << "/" << SwIspStats::kYHistogramSize + << " (" << 100 * (seen - histogram[i]) / total << "% below, " + << 100 * seen / total << "% at or below)"; + break; + } + }; +} + +REGISTER_IPA_ALGORITHM(BlackLevel, "BlackLevel") + +} /* namespace ipa::soft::algorithms */ + +} /* namespace libcamera */ diff --git a/src/ipa/simple/algorithms/blc.h b/src/ipa/simple/algorithms/blc.h new file mode 100644 index 00000000..db9e6d63 --- /dev/null +++ b/src/ipa/simple/algorithms/blc.h @@ -0,0 +1,38 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +/* + * Copyright (C) 2024, Red Hat Inc. + * + * Black level handling + */ + +#pragma once + +#include <optional> +#include <stdint.h> + +#include "algorithm.h" + +namespace libcamera { + +namespace ipa::soft::algorithms { + +class BlackLevel : public Algorithm +{ +public: + BlackLevel(); + ~BlackLevel() = default; + + int init(IPAContext &context, const YamlObject &tuningData) override; + int configure(IPAContext &context, const IPAConfigInfo &configInfo) override; + void process(IPAContext &context, const uint32_t frame, + IPAFrameContext &frameContext, + const SwIspStats *stats, + ControlList &metadata) override; + +private: + std::optional<uint8_t> definedLevel_; +}; + +} /* namespace ipa::soft::algorithms */ + +} /* namespace libcamera */ diff --git a/src/ipa/simple/algorithms/ccm.cpp b/src/ipa/simple/algorithms/ccm.cpp new file mode 100644 index 00000000..d5ba928d --- /dev/null +++ b/src/ipa/simple/algorithms/ccm.cpp @@ -0,0 +1,76 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +/* + * Copyright (C) 2024, Ideas On Board + * Copyright (C) 2024-2025, Red Hat Inc. + * + * Color correction matrix + */ + +#include "ccm.h" + +#include <libcamera/base/log.h> +#include <libcamera/base/utils.h> + +#include <libcamera/control_ids.h> + +namespace { + +constexpr unsigned int kTemperatureThreshold = 100; + +} + +namespace libcamera { + +namespace ipa::soft::algorithms { + +LOG_DEFINE_CATEGORY(IPASoftCcm) + +int Ccm::init([[maybe_unused]] IPAContext &context, const YamlObject &tuningData) +{ + int ret = ccm_.readYaml(tuningData["ccms"], "ct", "ccm"); + if (ret < 0) { + LOG(IPASoftCcm, Error) + << "Failed to parse 'ccm' parameter from tuning file."; + return ret; + } + + context.ccmEnabled = true; + + return 0; +} + +void Ccm::prepare(IPAContext &context, const uint32_t frame, + IPAFrameContext &frameContext, [[maybe_unused]] DebayerParams *params) +{ + const unsigned int ct = context.activeState.awb.temperatureK; + + /* Change CCM only on bigger temperature changes. */ + if (frame > 0 && + utils::abs_diff(ct, lastCt_) < kTemperatureThreshold) { + frameContext.ccm.ccm = context.activeState.ccm.ccm; + context.activeState.ccm.changed = false; + return; + } + + lastCt_ = ct; + Matrix<float, 3, 3> ccm = ccm_.getInterpolated(ct); + + context.activeState.ccm.ccm = ccm; + frameContext.ccm.ccm = ccm; + context.activeState.ccm.changed = true; +} + +void Ccm::process([[maybe_unused]] IPAContext &context, + [[maybe_unused]] const uint32_t frame, + IPAFrameContext &frameContext, + [[maybe_unused]] const SwIspStats *stats, + ControlList &metadata) +{ + metadata.set(controls::ColourCorrectionMatrix, frameContext.ccm.ccm.data()); +} + +REGISTER_IPA_ALGORITHM(Ccm, "Ccm") + +} /* namespace ipa::soft::algorithms */ + +} /* namespace libcamera */ diff --git a/src/ipa/simple/algorithms/ccm.h b/src/ipa/simple/algorithms/ccm.h new file mode 100644 index 00000000..f4e2b85b --- /dev/null +++ b/src/ipa/simple/algorithms/ccm.h @@ -0,0 +1,43 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +/* + * Copyright (C) 2024-2025, Red Hat Inc. + * + * Color correction matrix + */ + +#pragma once + +#include "libcamera/internal/matrix.h" + +#include <libipa/interpolator.h> + +#include "algorithm.h" + +namespace libcamera { + +namespace ipa::soft::algorithms { + +class Ccm : public Algorithm +{ +public: + Ccm() = default; + ~Ccm() = default; + + int init(IPAContext &context, const YamlObject &tuningData) override; + void prepare(IPAContext &context, + const uint32_t frame, + IPAFrameContext &frameContext, + DebayerParams *params) override; + void process(IPAContext &context, const uint32_t frame, + IPAFrameContext &frameContext, + const SwIspStats *stats, + ControlList &metadata) override; + +private: + unsigned int lastCt_; + Interpolator<Matrix<float, 3, 3>> ccm_; +}; + +} /* namespace ipa::soft::algorithms */ + +} /* namespace libcamera */ diff --git a/src/ipa/simple/algorithms/lut.cpp b/src/ipa/simple/algorithms/lut.cpp new file mode 100644 index 00000000..d1d5f727 --- /dev/null +++ b/src/ipa/simple/algorithms/lut.cpp @@ -0,0 +1,159 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +/* + * Copyright (C) 2024-2025, Red Hat Inc. + * + * Color lookup tables construction + */ + +#include "lut.h" + +#include <algorithm> +#include <cmath> +#include <optional> +#include <stdint.h> + +#include <libcamera/base/log.h> + +#include <libcamera/control_ids.h> + +#include "simple/ipa_context.h" + +namespace libcamera { + +LOG_DEFINE_CATEGORY(IPASoftLut) + +namespace ipa::soft::algorithms { + +int Lut::init(IPAContext &context, + [[maybe_unused]] const YamlObject &tuningData) +{ + context.ctrlMap[&controls::Contrast] = ControlInfo(0.0f, 2.0f, 1.0f); + return 0; +} + +int Lut::configure(IPAContext &context, + [[maybe_unused]] const IPAConfigInfo &configInfo) +{ + /* Gamma value is fixed */ + context.configuration.gamma = 0.5; + context.activeState.knobs.contrast = std::optional<double>(); + updateGammaTable(context); + + return 0; +} + +void Lut::queueRequest(typename Module::Context &context, + [[maybe_unused]] const uint32_t frame, + [[maybe_unused]] typename Module::FrameContext &frameContext, + const ControlList &controls) +{ + const auto &contrast = controls.get(controls::Contrast); + if (contrast.has_value()) { + context.activeState.knobs.contrast = contrast; + LOG(IPASoftLut, Debug) << "Setting contrast to " << contrast.value(); + } +} + +void Lut::updateGammaTable(IPAContext &context) +{ + auto &gammaTable = context.activeState.gamma.gammaTable; + const auto blackLevel = context.activeState.blc.level; + const unsigned int blackIndex = blackLevel * gammaTable.size() / 256; + const auto contrast = context.activeState.knobs.contrast.value_or(1.0); + + std::fill(gammaTable.begin(), gammaTable.begin() + blackIndex, 0); + const float divisor = gammaTable.size() - blackIndex - 1.0; + for (unsigned int i = blackIndex; i < gammaTable.size(); i++) { + double normalized = (i - blackIndex) / divisor; + /* Convert 0..2 to 0..infinity; avoid actual inifinity at tan(pi/2) */ + double contrastExp = tan(std::clamp(contrast * M_PI_4, 0.0, M_PI_2 - 0.00001)); + /* Apply simple S-curve */ + if (normalized < 0.5) + normalized = 0.5 * std::pow(normalized / 0.5, contrastExp); + else + normalized = 1.0 - 0.5 * std::pow((1.0 - normalized) / 0.5, contrastExp); + gammaTable[i] = UINT8_MAX * + std::pow(normalized, context.configuration.gamma); + } + + context.activeState.gamma.blackLevel = blackLevel; + context.activeState.gamma.contrast = contrast; +} + +int16_t Lut::ccmValue(unsigned int i, float ccm) const +{ + return std::round(i * ccm); +} + +void Lut::prepare(IPAContext &context, + [[maybe_unused]] const uint32_t frame, + IPAFrameContext &frameContext, + DebayerParams *params) +{ + frameContext.contrast = context.activeState.knobs.contrast; + + /* + * Update the gamma table if needed. This means if black level changes + * and since the black level gets updated only if a lower value is + * observed, it's not permanently prone to minor fluctuations or + * rounding errors. + */ + const bool gammaUpdateNeeded = + context.activeState.gamma.blackLevel != context.activeState.blc.level || + context.activeState.gamma.contrast != context.activeState.knobs.contrast; + if (gammaUpdateNeeded) + updateGammaTable(context); + + auto &gains = context.activeState.awb.gains; + auto &gammaTable = context.activeState.gamma.gammaTable; + const unsigned int gammaTableSize = gammaTable.size(); + const double div = static_cast<double>(DebayerParams::kRGBLookupSize) / + gammaTableSize; + + if (!context.ccmEnabled) { + for (unsigned int i = 0; i < DebayerParams::kRGBLookupSize; i++) { + /* Apply gamma after gain! */ + const RGB<float> lutGains = (gains * i / div).min(gammaTableSize - 1); + params->red[i] = gammaTable[static_cast<unsigned int>(lutGains.r())]; + params->green[i] = gammaTable[static_cast<unsigned int>(lutGains.g())]; + params->blue[i] = gammaTable[static_cast<unsigned int>(lutGains.b())]; + } + } else if (context.activeState.ccm.changed || gammaUpdateNeeded) { + Matrix<float, 3, 3> gainCcm = { { gains.r(), 0, 0, + 0, gains.g(), 0, + 0, 0, gains.b() } }; + auto ccm = context.activeState.ccm.ccm * gainCcm; + auto &red = params->redCcm; + auto &green = params->greenCcm; + auto &blue = params->blueCcm; + for (unsigned int i = 0; i < DebayerParams::kRGBLookupSize; i++) { + red[i].r = ccmValue(i, ccm[0][0]); + red[i].g = ccmValue(i, ccm[1][0]); + red[i].b = ccmValue(i, ccm[2][0]); + green[i].r = ccmValue(i, ccm[0][1]); + green[i].g = ccmValue(i, ccm[1][1]); + green[i].b = ccmValue(i, ccm[2][1]); + blue[i].r = ccmValue(i, ccm[0][2]); + blue[i].g = ccmValue(i, ccm[1][2]); + blue[i].b = ccmValue(i, ccm[2][2]); + params->gammaLut[i] = gammaTable[i / div]; + } + } +} + +void Lut::process([[maybe_unused]] IPAContext &context, + [[maybe_unused]] const uint32_t frame, + [[maybe_unused]] IPAFrameContext &frameContext, + [[maybe_unused]] const SwIspStats *stats, + ControlList &metadata) +{ + const auto &contrast = frameContext.contrast; + if (contrast) + metadata.set(controls::Contrast, contrast.value()); +} + +REGISTER_IPA_ALGORITHM(Lut, "Lut") + +} /* namespace ipa::soft::algorithms */ + +} /* namespace libcamera */ diff --git a/src/ipa/simple/algorithms/lut.h b/src/ipa/simple/algorithms/lut.h new file mode 100644 index 00000000..ba8b9021 --- /dev/null +++ b/src/ipa/simple/algorithms/lut.h @@ -0,0 +1,46 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +/* + * Copyright (C) 2024, Red Hat Inc. + * + * Color lookup tables construction + */ + +#pragma once + +#include "algorithm.h" + +namespace libcamera { + +namespace ipa::soft::algorithms { + +class Lut : public Algorithm +{ +public: + Lut() = default; + ~Lut() = default; + + int init(IPAContext &context, const YamlObject &tuningData) override; + int configure(IPAContext &context, const IPAConfigInfo &configInfo) override; + void queueRequest(typename Module::Context &context, + const uint32_t frame, + typename Module::FrameContext &frameContext, + const ControlList &controls) + override; + void prepare(IPAContext &context, + const uint32_t frame, + IPAFrameContext &frameContext, + DebayerParams *params) override; + void process(IPAContext &context, + const uint32_t frame, + IPAFrameContext &frameContext, + const SwIspStats *stats, + ControlList &metadata) override; + +private: + void updateGammaTable(IPAContext &context); + int16_t ccmValue(unsigned int i, float ccm) const; +}; + +} /* namespace ipa::soft::algorithms */ + +} /* namespace libcamera */ diff --git a/src/ipa/simple/algorithms/meson.build b/src/ipa/simple/algorithms/meson.build new file mode 100644 index 00000000..2d0adb05 --- /dev/null +++ b/src/ipa/simple/algorithms/meson.build @@ -0,0 +1,9 @@ +# SPDX-License-Identifier: CC0-1.0 + +soft_simple_ipa_algorithms = files([ + 'awb.cpp', + 'agc.cpp', + 'blc.cpp', + 'ccm.cpp', + 'lut.cpp', +]) diff --git a/src/ipa/simple/data/meson.build b/src/ipa/simple/data/meson.build new file mode 100644 index 00000000..92795ee4 --- /dev/null +++ b/src/ipa/simple/data/meson.build @@ -0,0 +1,10 @@ +# SPDX-License-Identifier: CC0-1.0 + +conf_files = files([ + 'uncalibrated.yaml', +]) + +# The install_dir must match the name from the IPAModuleInfo +install_data(conf_files, + install_dir : ipa_data_dir / 'simple', + install_tag : 'runtime') diff --git a/src/ipa/simple/data/uncalibrated.yaml b/src/ipa/simple/data/uncalibrated.yaml new file mode 100644 index 00000000..5508e668 --- /dev/null +++ b/src/ipa/simple/data/uncalibrated.yaml @@ -0,0 +1,19 @@ +# SPDX-License-Identifier: CC0-1.0 +%YAML 1.1 +--- +version: 1 +algorithms: + - BlackLevel: + - Awb: + # Color correction matrices can be defined here. The CCM algorithm + # has a significant performance impact, and should only be enabled + # if tuned. + # - Ccm: + # ccms: + # - ct: 6500 + # ccm: [ 1, 0, 0, + # 0, 1, 0, + # 0, 0, 1] + - Lut: + - Agc: +... diff --git a/src/ipa/simple/ipa_context.cpp b/src/ipa/simple/ipa_context.cpp new file mode 100644 index 00000000..3f94bbeb --- /dev/null +++ b/src/ipa/simple/ipa_context.cpp @@ -0,0 +1,102 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +/* + * Copyright (C) 2021, Google Inc. + * Copyright (C) 2024 Red Hat Inc. + * + * Software ISP IPA Context + */ + +#include "ipa_context.h" + +/** + * \file ipa_context.h + * \brief Context and state information shared between the algorithms + */ + +namespace libcamera::ipa::soft { + +/** + * \struct IPASessionConfiguration + * \brief Session configuration for the IPA module + * + * The session configuration contains all IPA configuration parameters that + * remain constant during the capture session, from IPA module start to stop. + * It is typically set during the configure() operation of the IPA module, but + * may also be updated in the start() operation. + */ + +/** + * \struct IPAActiveState + * \brief The active state of the IPA algorithms + * + * The IPA is fed with the statistics generated from the latest frame processed. + * The statistics are then processed by the IPA algorithms to compute parameters + * required for the next frame capture and processing. The current state of the + * algorithms is reflected through the IPAActiveState to store the values most + * recently computed by the IPA algorithms. + */ + +/** + * \struct IPAContext + * \brief Global IPA context data shared between all algorithms + * + * \var IPAContext::configuration + * \brief The IPA session configuration, immutable during the session + * + * \var IPAContext::frameContexts + * \brief Ring buffer of the IPAFrameContext(s) + * + * \var IPAContext::activeState + * \brief The current state of IPA algorithms + */ + +/** + * \var IPASessionConfiguration::gamma + * \brief Gamma value to be used in the raw image processing + */ + +/** + * \var IPAActiveState::black + * \brief Context for the Black Level algorithm + * + * \var IPAActiveState::black.level + * \brief Current determined black level + */ + +/** + * \var IPAActiveState::gains + * \brief Context for gains in the Colors algorithm + * + * \var IPAActiveState::gains.red + * \brief Gain of red color + * + * \var IPAActiveState::gains.green + * \brief Gain of green color + * + * \var IPAActiveState::gains.blue + * \brief Gain of blue color + */ + +/** + * \var IPAActiveState::agc + * \brief Context for the AGC algorithm + * + * \var IPAActiveState::agc.exposure + * \brief Current exposure value + * + * \var IPAActiveState::agc.again + * \brief Current analog gain value + */ + +/** + * \var IPAActiveState::gamma + * \brief Context for gamma in the Colors algorithm + * + * \var IPAActiveState::gamma.gammaTable + * \brief Computed gamma table + * + * \var IPAActiveState::gamma.blackLevel + * \brief Black level used for the gamma table computation + */ + +} /* namespace libcamera::ipa::soft */ diff --git a/src/ipa/simple/ipa_context.h b/src/ipa/simple/ipa_context.h new file mode 100644 index 00000000..88cc6c35 --- /dev/null +++ b/src/ipa/simple/ipa_context.h @@ -0,0 +1,101 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +/* + * Copyright (C) 2024-2025 Red Hat, Inc. + * + * Simple pipeline IPA Context + */ + +#pragma once + +#include <array> +#include <optional> +#include <stdint.h> + +#include <libcamera/controls.h> + +#include "libcamera/internal/matrix.h" +#include "libcamera/internal/vector.h" + +#include <libipa/fc_queue.h> + +#include "core_ipa_interface.h" + +namespace libcamera { + +namespace ipa::soft { + +struct IPASessionConfiguration { + float gamma; + struct { + int32_t exposureMin, exposureMax; + double againMin, againMax, againMinStep; + utils::Duration lineDuration; + } agc; + struct { + std::optional<uint8_t> level; + } black; +}; + +struct IPAActiveState { + struct { + uint8_t level; + int32_t lastExposure; + double lastGain; + } blc; + + struct { + RGB<float> gains; + unsigned int temperatureK; + } awb; + + static constexpr unsigned int kGammaLookupSize = 1024; + struct { + std::array<double, kGammaLookupSize> gammaTable; + uint8_t blackLevel; + double contrast; + } gamma; + + struct { + Matrix<float, 3, 3> ccm; + bool changed; + } ccm; + + struct { + /* 0..2 range, 1.0 = normal */ + std::optional<double> contrast; + } knobs; +}; + +struct IPAFrameContext : public FrameContext { + struct { + Matrix<float, 3, 3> ccm; + } ccm; + + struct { + int32_t exposure; + double gain; + } sensor; + struct { + double red; + double blue; + } gains; + std::optional<double> contrast; +}; + +struct IPAContext { + IPAContext(unsigned int frameContextSize) + : frameContexts(frameContextSize) + { + } + + IPACameraSensorInfo sensorInfo; + IPASessionConfiguration configuration; + IPAActiveState activeState; + FCQueue<IPAFrameContext> frameContexts; + ControlInfoMap::Map ctrlMap; + bool ccmEnabled = false; +}; + +} /* namespace ipa::soft */ + +} /* namespace libcamera */ diff --git a/src/ipa/simple/meson.build b/src/ipa/simple/meson.build new file mode 100644 index 00000000..2f9f15f4 --- /dev/null +++ b/src/ipa/simple/meson.build @@ -0,0 +1,31 @@ +# SPDX-License-Identifier: CC0-1.0 + +subdir('algorithms') +subdir('data') + +ipa_name = 'ipa_soft_simple' + +soft_simple_sources = files([ + 'ipa_context.cpp', + 'soft_simple.cpp', +]) + +soft_simple_sources += soft_simple_ipa_algorithms + +mod = shared_module(ipa_name, soft_simple_sources, + name_prefix : '', + include_directories : [ipa_includes], + dependencies : [libcamera_private, libipa_dep], + install : true, + install_dir : ipa_install_dir) + +if ipa_sign_module + custom_target(ipa_name + '.so.sign', + input : mod, + output : ipa_name + '.so.sign', + command : [ipa_sign, ipa_priv_key, '@INPUT@', '@OUTPUT@'], + install : false, + build_by_default : true) +endif + +ipa_names += ipa_name diff --git a/src/ipa/simple/module.h b/src/ipa/simple/module.h new file mode 100644 index 00000000..8d4d53fb --- /dev/null +++ b/src/ipa/simple/module.h @@ -0,0 +1,30 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +/* + * Copyright (C) 2024 Red Hat, Inc. + * + * Software ISP IPA Module + */ + +#pragma once + +#include <libcamera/controls.h> + +#include <libcamera/ipa/soft_ipa_interface.h> + +#include "libcamera/internal/software_isp/debayer_params.h" +#include "libcamera/internal/software_isp/swisp_stats.h" + +#include <libipa/module.h> + +#include "ipa_context.h" + +namespace libcamera { + +namespace ipa::soft { + +using Module = ipa::Module<IPAContext, IPAFrameContext, IPAConfigInfo, + DebayerParams, SwIspStats>; + +} /* namespace ipa::soft */ + +} /* namespace libcamera */ diff --git a/src/ipa/simple/soft_simple.cpp b/src/ipa/simple/soft_simple.cpp new file mode 100644 index 00000000..c94c4cd5 --- /dev/null +++ b/src/ipa/simple/soft_simple.cpp @@ -0,0 +1,358 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +/* + * Copyright (C) 2023, Linaro Ltd + * + * Simple Software Image Processing Algorithm module + */ + +#include <chrono> +#include <stdint.h> +#include <sys/mman.h> + +#include <linux/v4l2-controls.h> + +#include <libcamera/base/file.h> +#include <libcamera/base/log.h> +#include <libcamera/base/shared_fd.h> + +#include <libcamera/control_ids.h> +#include <libcamera/controls.h> + +#include <libcamera/ipa/ipa_interface.h> +#include <libcamera/ipa/ipa_module_info.h> +#include <libcamera/ipa/soft_ipa_interface.h> + +#include "libcamera/internal/software_isp/debayer_params.h" +#include "libcamera/internal/software_isp/swisp_stats.h" +#include "libcamera/internal/yaml_parser.h" + +#include "libipa/camera_sensor_helper.h" + +#include "module.h" + +namespace libcamera { +LOG_DEFINE_CATEGORY(IPASoft) + +using namespace std::literals::chrono_literals; + +namespace ipa::soft { + +/* Maximum number of frame contexts to be held */ +static constexpr uint32_t kMaxFrameContexts = 16; + +class IPASoftSimple : public ipa::soft::IPASoftInterface, public Module +{ +public: + IPASoftSimple() + : context_(kMaxFrameContexts) + { + } + + ~IPASoftSimple(); + + int init(const IPASettings &settings, + const SharedFD &fdStats, + const SharedFD &fdParams, + const IPACameraSensorInfo &sensorInfo, + const ControlInfoMap &sensorControls, + ControlInfoMap *ipaControls, + bool *ccmEnabled) override; + int configure(const IPAConfigInfo &configInfo) override; + + int start() override; + void stop() override; + + void queueRequest(const uint32_t frame, const ControlList &controls) override; + void computeParams(const uint32_t frame) override; + void processStats(const uint32_t frame, const uint32_t bufferId, + const ControlList &sensorControls) override; + +protected: + std::string logPrefix() const override; + +private: + void updateExposure(double exposureMSV); + + DebayerParams *params_; + SwIspStats *stats_; + std::unique_ptr<CameraSensorHelper> camHelper_; + ControlInfoMap sensorInfoMap_; + + /* Local parameter storage */ + struct IPAContext context_; +}; + +IPASoftSimple::~IPASoftSimple() +{ + if (stats_) + munmap(stats_, sizeof(SwIspStats)); + if (params_) + munmap(params_, sizeof(DebayerParams)); +} + +int IPASoftSimple::init(const IPASettings &settings, + const SharedFD &fdStats, + const SharedFD &fdParams, + const IPACameraSensorInfo &sensorInfo, + const ControlInfoMap &sensorControls, + ControlInfoMap *ipaControls, + bool *ccmEnabled) +{ + camHelper_ = CameraSensorHelperFactoryBase::create(settings.sensorModel); + if (!camHelper_) { + LOG(IPASoft, Warning) + << "Failed to create camera sensor helper for " + << settings.sensorModel; + } + + context_.sensorInfo = sensorInfo; + + /* Load the tuning data file */ + File file(settings.configurationFile); + if (!file.open(File::OpenModeFlag::ReadOnly)) { + int ret = file.error(); + LOG(IPASoft, Error) + << "Failed to open configuration file " + << settings.configurationFile << ": " << strerror(-ret); + return ret; + } + + std::unique_ptr<libcamera::YamlObject> data = YamlParser::parse(file); + if (!data) + return -EINVAL; + + /* \todo Use the IPA configuration file for real. */ + unsigned int version = (*data)["version"].get<uint32_t>(0); + LOG(IPASoft, Debug) << "Tuning file version " << version; + + if (!data->contains("algorithms")) { + LOG(IPASoft, Error) << "Tuning file doesn't contain algorithms"; + return -EINVAL; + } + + int ret = createAlgorithms(context_, (*data)["algorithms"]); + if (ret) + return ret; + + *ccmEnabled = context_.ccmEnabled; + + params_ = nullptr; + stats_ = nullptr; + + if (!fdStats.isValid()) { + LOG(IPASoft, Error) << "Invalid Statistics handle"; + return -ENODEV; + } + + if (!fdParams.isValid()) { + LOG(IPASoft, Error) << "Invalid Parameters handle"; + return -ENODEV; + } + + { + void *mem = mmap(nullptr, sizeof(DebayerParams), PROT_WRITE, + MAP_SHARED, fdParams.get(), 0); + if (mem == MAP_FAILED) { + LOG(IPASoft, Error) << "Unable to map Parameters"; + return -errno; + } + + params_ = static_cast<DebayerParams *>(mem); + } + + { + void *mem = mmap(nullptr, sizeof(SwIspStats), PROT_READ, + MAP_SHARED, fdStats.get(), 0); + if (mem == MAP_FAILED) { + LOG(IPASoft, Error) << "Unable to map Statistics"; + return -errno; + } + + stats_ = static_cast<SwIspStats *>(mem); + } + + ControlInfoMap::Map ctrlMap = context_.ctrlMap; + *ipaControls = ControlInfoMap(std::move(ctrlMap), controls::controls); + + /* + * Check if the sensor driver supports the controls required by the + * Soft IPA. + * Don't save the min and max control values yet, as e.g. the limits + * for V4L2_CID_EXPOSURE depend on the configured sensor resolution. + */ + if (sensorControls.find(V4L2_CID_EXPOSURE) == sensorControls.end()) { + LOG(IPASoft, Error) << "Don't have exposure control"; + return -EINVAL; + } + + if (sensorControls.find(V4L2_CID_ANALOGUE_GAIN) == sensorControls.end()) { + LOG(IPASoft, Error) << "Don't have gain control"; + return -EINVAL; + } + + return 0; +} + +int IPASoftSimple::configure(const IPAConfigInfo &configInfo) +{ + sensorInfoMap_ = configInfo.sensorControls; + + const ControlInfo &exposureInfo = sensorInfoMap_.find(V4L2_CID_EXPOSURE)->second; + const ControlInfo &gainInfo = sensorInfoMap_.find(V4L2_CID_ANALOGUE_GAIN)->second; + + /* Clear the IPA context before the streaming session. */ + context_.configuration = {}; + context_.activeState = {}; + context_.frameContexts.clear(); + + context_.configuration.agc.lineDuration = + context_.sensorInfo.minLineLength * 1.0s / context_.sensorInfo.pixelRate; + context_.configuration.agc.exposureMin = exposureInfo.min().get<int32_t>(); + context_.configuration.agc.exposureMax = exposureInfo.max().get<int32_t>(); + if (!context_.configuration.agc.exposureMin) { + LOG(IPASoft, Warning) << "Minimum exposure is zero, that can't be linear"; + context_.configuration.agc.exposureMin = 1; + } + + int32_t againMin = gainInfo.min().get<int32_t>(); + int32_t againMax = gainInfo.max().get<int32_t>(); + + if (camHelper_) { + context_.configuration.agc.againMin = camHelper_->gain(againMin); + context_.configuration.agc.againMax = camHelper_->gain(againMax); + context_.configuration.agc.againMinStep = + (context_.configuration.agc.againMax - + context_.configuration.agc.againMin) / + 100.0; + if (camHelper_->blackLevel().has_value()) { + /* + * The black level from camHelper_ is a 16 bit value, software ISP + * works with 8 bit pixel values, both regardless of the actual + * sensor pixel width. Hence we obtain the pixel-based black value + * by dividing the value from the helper by 256. + */ + context_.configuration.black.level = + camHelper_->blackLevel().value() / 256; + } + } else { + /* + * The camera sensor gain (g) is usually not equal to the value written + * into the gain register (x). But the way how the AGC algorithm changes + * the gain value to make the total exposure closer to the optimum + * assumes that g(x) is not too far from linear function. If the minimal + * gain is 0, the g(x) is likely to be far from the linear, like + * g(x) = a / (b * x + c). To avoid unexpected changes to the gain by + * the AGC algorithm (abrupt near one edge, and very small near the + * other) we limit the range of the gain values used. + */ + context_.configuration.agc.againMax = againMax; + if (!againMin) { + LOG(IPASoft, Warning) + << "Minimum gain is zero, that can't be linear"; + context_.configuration.agc.againMin = + std::min(100, againMin / 2 + againMax / 2); + } + context_.configuration.agc.againMinStep = 1.0; + } + + for (auto const &algo : algorithms()) { + int ret = algo->configure(context_, configInfo); + if (ret) + return ret; + } + + LOG(IPASoft, Info) + << "Exposure " << context_.configuration.agc.exposureMin << "-" + << context_.configuration.agc.exposureMax + << ", gain " << context_.configuration.agc.againMin << "-" + << context_.configuration.agc.againMax + << " (" << context_.configuration.agc.againMinStep << ")"; + + return 0; +} + +int IPASoftSimple::start() +{ + return 0; +} + +void IPASoftSimple::stop() +{ + context_.frameContexts.clear(); +} + +void IPASoftSimple::queueRequest(const uint32_t frame, const ControlList &controls) +{ + IPAFrameContext &frameContext = context_.frameContexts.alloc(frame); + + for (auto const &algo : algorithms()) + algo->queueRequest(context_, frame, frameContext, controls); +} + +void IPASoftSimple::computeParams(const uint32_t frame) +{ + IPAFrameContext &frameContext = context_.frameContexts.get(frame); + for (auto const &algo : algorithms()) + algo->prepare(context_, frame, frameContext, params_); + setIspParams.emit(); +} + +void IPASoftSimple::processStats(const uint32_t frame, + [[maybe_unused]] const uint32_t bufferId, + const ControlList &sensorControls) +{ + IPAFrameContext &frameContext = context_.frameContexts.get(frame); + + frameContext.sensor.exposure = + sensorControls.get(V4L2_CID_EXPOSURE).get<int32_t>(); + int32_t again = sensorControls.get(V4L2_CID_ANALOGUE_GAIN).get<int32_t>(); + frameContext.sensor.gain = camHelper_ ? camHelper_->gain(again) : again; + + ControlList metadata(controls::controls); + for (auto const &algo : algorithms()) + algo->process(context_, frame, frameContext, stats_, metadata); + metadataReady.emit(frame, metadata); + + /* Sanity check */ + if (!sensorControls.contains(V4L2_CID_EXPOSURE) || + !sensorControls.contains(V4L2_CID_ANALOGUE_GAIN)) { + LOG(IPASoft, Error) << "Control(s) missing"; + return; + } + + ControlList ctrls(sensorInfoMap_); + + auto &againNew = frameContext.sensor.gain; + ctrls.set(V4L2_CID_EXPOSURE, frameContext.sensor.exposure); + ctrls.set(V4L2_CID_ANALOGUE_GAIN, + static_cast<int32_t>(camHelper_ ? camHelper_->gainCode(againNew) : againNew)); + + setSensorControls.emit(ctrls); +} + +std::string IPASoftSimple::logPrefix() const +{ + return "IPASoft"; +} + +} /* namespace ipa::soft */ + +/* + * External IPA module interface + */ +extern "C" { +const struct IPAModuleInfo ipaModuleInfo = { + IPA_MODULE_API_VERSION, + 0, + "simple", + "simple", +}; + +IPAInterface *ipaCreate() +{ + return new ipa::soft::IPASoftSimple(); +} + +} /* extern "C" */ + +} /* namespace libcamera */ diff --git a/src/ipa/vimc/data/meson.build b/src/ipa/vimc/data/meson.build index 42ec651c..628d6a29 100644 --- a/src/ipa/vimc/data/meson.build +++ b/src/ipa/vimc/data/meson.build @@ -5,4 +5,5 @@ conf_files = files([ ]) install_data(conf_files, - install_dir : ipa_data_dir / 'vimc') + install_dir : ipa_data_dir / 'vimc', + install_tag : 'runtime') diff --git a/src/ipa/vimc/meson.build b/src/ipa/vimc/meson.build index 264a2d9a..2cc5f80b 100644 --- a/src/ipa/vimc/meson.build +++ b/src/ipa/vimc/meson.build @@ -2,12 +2,10 @@ ipa_name = 'ipa_vimc' -mod = shared_module(ipa_name, - ['vimc.cpp', libcamera_generated_ipa_headers], +mod = shared_module(ipa_name, 'vimc.cpp', name_prefix : '', - include_directories : [ipa_includes, libipa_includes], - dependencies : libcamera_private, - link_with : libipa, + include_directories : [ipa_includes], + dependencies : [libcamera_private, libipa_dep], install : true, install_dir : ipa_install_dir) diff --git a/src/ipa/vimc/vimc.cpp b/src/ipa/vimc/vimc.cpp index 2c255778..a1351a0f 100644 --- a/src/ipa/vimc/vimc.cpp +++ b/src/ipa/vimc/vimc.cpp @@ -2,7 +2,7 @@ /* * Copyright (C) 2019, Google Inc. * - * vimc.cpp - Vimc Image Processing Algorithm module + * Vimc Image Processing Algorithm module */ #include <libcamera/ipa/vimc_ipa_interface.h> @@ -14,6 +14,7 @@ #include <iostream> #include <libcamera/base/file.h> +#include <libcamera/base/flags.h> #include <libcamera/base/log.h> #include <libcamera/ipa/ipa_interface.h> @@ -47,7 +48,7 @@ public: void unmapBuffers(const std::vector<unsigned int> &ids) override; void queueRequest(uint32_t frame, const ControlList &controls) override; - void fillParamsBuffer(uint32_t frame, uint32_t bufferId) override; + void computeParams(uint32_t frame, uint32_t bufferId) override; private: void initTrace(); @@ -149,7 +150,7 @@ void IPAVimc::queueRequest([[maybe_unused]] uint32_t frame, { } -void IPAVimc::fillParamsBuffer([[maybe_unused]] uint32_t frame, uint32_t bufferId) +void IPAVimc::computeParams([[maybe_unused]] uint32_t frame, uint32_t bufferId) { auto it = buffers_.find(bufferId); if (it == buffers_.end()) { @@ -158,7 +159,7 @@ void IPAVimc::fillParamsBuffer([[maybe_unused]] uint32_t frame, uint32_t bufferI } Flags<ipa::vimc::TestFlag> flags; - paramsBufferReady.emit(bufferId, flags); + paramsComputed.emit(bufferId, flags); } void IPAVimc::initTrace() @@ -200,7 +201,7 @@ extern "C" { const struct IPAModuleInfo ipaModuleInfo = { IPA_MODULE_API_VERSION, 0, - "PipelineHandlerVimc", + "vimc", "vimc", }; |