diff options
| -rw-r--r-- | src/ipa/rpi/controller/agc_algorithm.h | 3 | ||||
| -rw-r--r-- | src/ipa/rpi/controller/rpi/agc.cpp | 27 | ||||
| -rw-r--r-- | src/ipa/rpi/controller/rpi/agc.h | 1 | ||||
| -rw-r--r-- | src/ipa/rpi/vc4/vc4.cpp | 26 |
4 files changed, 41 insertions, 16 deletions
diff --git a/src/ipa/rpi/controller/agc_algorithm.h b/src/ipa/rpi/controller/agc_algorithm.h index 36e6c110..b6949daa 100644 --- a/src/ipa/rpi/controller/agc_algorithm.h +++ b/src/ipa/rpi/controller/agc_algorithm.h @@ -6,6 +6,8 @@ */ #pragma once +#include <vector> + #include <libcamera/base/utils.h> #include "algorithm.h" @@ -18,6 +20,7 @@ public: AgcAlgorithm(Controller *controller) : Algorithm(controller) {} /* An AGC algorithm must provide the following: */ virtual unsigned int getConvergenceFrames() const = 0; + virtual std::vector<double> const &getWeights() const = 0; virtual void setEv(double ev) = 0; virtual void setFlickerPeriod(libcamera::utils::Duration flickerPeriod) = 0; virtual void setFixedShutter(libcamera::utils::Duration fixedShutter) = 0; diff --git a/src/ipa/rpi/controller/rpi/agc.cpp b/src/ipa/rpi/controller/rpi/agc.cpp index e6fb7b8d..e79c82e2 100644 --- a/src/ipa/rpi/controller/rpi/agc.cpp +++ b/src/ipa/rpi/controller/rpi/agc.cpp @@ -292,6 +292,18 @@ unsigned int Agc::getConvergenceFrames() const return config_.convergenceFrames; } +std::vector<double> const &Agc::getWeights() const +{ + /* + * In case someone calls setMeteringMode and then this before the + * algorithm has run and updated the meteringMode_ pointer. + */ + auto it = config_.meteringModes.find(meteringModeName_); + if (it == config_.meteringModes.end()) + return meteringMode_->weights; + return it->second.weights; +} + void Agc::setEv(double ev) { ev_ = ev; @@ -595,19 +607,16 @@ static double computeInitialY(StatisticsPtr &stats, AwbStatus const &awb, ASSERT(weights.size() == stats->agcRegions.numRegions()); /* - * Note how the calculation below means that equal weights give you - * "average" metering (i.e. all pixels equally important). + * 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; for (unsigned int i = 0; i < stats->agcRegions.numRegions(); i++) { auto ®ion = stats->agcRegions.get(i); - double rAcc = std::min<double>(region.val.rSum * gain, (maxVal - 1) * region.counted); - double gAcc = std::min<double>(region.val.gSum * gain, (maxVal - 1) * region.counted); - double bAcc = std::min<double>(region.val.bSum * gain, (maxVal - 1) * region.counted); - rSum += rAcc * weights[i]; - gSum += gAcc * weights[i]; - bSum += bAcc * weights[i]; - pixelSum += region.counted * weights[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); + pixelSum += region.counted; } if (pixelSum == 0.0) { LOG(RPiAgc, Warning) << "computeInitialY: pixelSum is zero"; diff --git a/src/ipa/rpi/controller/rpi/agc.h b/src/ipa/rpi/controller/rpi/agc.h index 4e5f272f..939f9729 100644 --- a/src/ipa/rpi/controller/rpi/agc.h +++ b/src/ipa/rpi/controller/rpi/agc.h @@ -69,6 +69,7 @@ public: char const *name() const override; int read(const libcamera::YamlObject ¶ms) override; unsigned int getConvergenceFrames() const override; + std::vector<double> const &getWeights() const override; void setEv(double ev) override; void setFlickerPeriod(libcamera::utils::Duration flickerPeriod) override; void setMaxShutter(libcamera::utils::Duration maxShutter) override; diff --git a/src/ipa/rpi/vc4/vc4.cpp b/src/ipa/rpi/vc4/vc4.cpp index a32db9bc..e38024ac 100644 --- a/src/ipa/rpi/vc4/vc4.cpp +++ b/src/ipa/rpi/vc4/vc4.cpp @@ -211,13 +211,25 @@ RPiController::StatisticsPtr IpaVc4::platformProcessStats(Span<uint8_t> mem) stats->awb_stats[i].counted, stats->awb_stats[i].notcounted }); - statistics->agcRegions.init(hw.agcRegions); - for (i = 0; i < statistics->agcRegions.numRegions(); i++) - statistics->agcRegions.set(i, { { stats->agc_stats[i].r_sum << scale, - stats->agc_stats[i].g_sum << scale, - stats->agc_stats[i].b_sum << scale }, - stats->agc_stats[i].counted, - stats->awb_stats[i].notcounted }); + RPiController::AgcAlgorithm *agc = dynamic_cast<RPiController::AgcAlgorithm *>( + controller_.getAlgorithm("agc")); + if (!agc) { + LOG(IPARPI, Debug) << "No AGC algorithm - not copying statistics"; + statistics->agcRegions.init(0); + } else { + statistics->agcRegions.init(hw.agcRegions); + const std::vector<double> &weights = agc->getWeights(); + for (i = 0; i < statistics->agcRegions.numRegions(); i++) { + uint64_t rSum = (stats->agc_stats[i].r_sum << scale) * weights[i]; + uint64_t gSum = (stats->agc_stats[i].g_sum << scale) * weights[i]; + uint64_t bSum = (stats->agc_stats[i].b_sum << scale) * weights[i]; + uint32_t counted = stats->agc_stats[i].counted * weights[i]; + uint32_t notcounted = stats->agc_stats[i].notcounted * weights[i]; + statistics->agcRegions.set(i, { { rSum, gSum, bSum }, + counted, + notcounted }); + } + } statistics->focusRegions.init(hw.focusRegions); for (i = 0; i < statistics->focusRegions.numRegions(); i++) |