From 4cf3c96493084dba77a4e5707f96db2e0b4481a5 Mon Sep 17 00:00:00 2001 From: Paul Elder Date: Tue, 18 Oct 2022 14:49:13 +0900 Subject: ipa: rkisp1: Add support for manual gain and exposure Add support for manual gain and exposure in the rkisp1 IPA. Signed-off-by: Paul Elder Reviewed-by: Laurent Pinchart Reviewed-by: Jacopo Mondi Signed-off-by: Laurent Pinchart Reviewed-by: Paul Elder --- src/ipa/rkisp1/algorithms/agc.cpp | 63 ++++++++++++++++++++++++++++++++++----- src/ipa/rkisp1/algorithms/agc.h | 4 +++ src/ipa/rkisp1/ipa_context.h | 13 ++++++-- src/ipa/rkisp1/rkisp1.cpp | 25 ++++++++++++++++ 4 files changed, 96 insertions(+), 9 deletions(-) diff --git a/src/ipa/rkisp1/algorithms/agc.cpp b/src/ipa/rkisp1/algorithms/agc.cpp index dba58c90..322e837d 100644 --- a/src/ipa/rkisp1/algorithms/agc.cpp +++ b/src/ipa/rkisp1/algorithms/agc.cpp @@ -74,9 +74,14 @@ Agc::Agc() int Agc::configure(IPAContext &context, const IPACameraSensorInfo &configInfo) { /* Configure the default exposure and gain. */ - context.activeState.agc.gain = std::max(context.configuration.sensor.minAnalogueGain, - kMinAnalogueGain); - context.activeState.agc.exposure = 10ms / context.configuration.sensor.lineDuration; + context.activeState.agc.automatic.gain = + std::max(context.configuration.sensor.minAnalogueGain, + kMinAnalogueGain); + context.activeState.agc.automatic.exposure = + 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 = true; /* * According to the RkISP1 documentation: @@ -108,14 +113,58 @@ int Agc::configure(IPAContext &context, const IPACameraSensorInfo &configInfo) return 0; } +/** + * \copydoc libcamera::ipa::Algorithm::queueRequest + */ +void Agc::queueRequest(IPAContext &context, + [[maybe_unused]] const uint32_t frame, + IPAFrameContext &frameContext, + const ControlList &controls) +{ + auto &agc = context.activeState.agc; + + const auto &agcEnable = controls.get(controls::AeEnable); + if (agcEnable && *agcEnable != agc.autoEnabled) { + agc.autoEnabled = *agcEnable; + + LOG(RkISP1Agc, Debug) + << (agc.autoEnabled ? "Enabling" : "Disabling") << " AGC"; + } + + const auto &exposure = controls.get(controls::ExposureTime); + if (exposure && !agc.autoEnabled) { + agc.manual.exposure = *exposure * 1.0us + / context.configuration.sensor.lineDuration; + + LOG(RkISP1Agc, Debug) + << "Set exposure to " << agc.manual.exposure; + } + + const auto &gain = controls.get(controls::AnalogueGain); + if (gain && !agc.autoEnabled) { + agc.manual.gain = *gain; + + LOG(RkISP1Agc, Debug) << "Set gain to " << agc.manual.gain; + } + + frameContext.agc.autoEnabled = agc.autoEnabled; + + if (!frameContext.agc.autoEnabled) { + frameContext.agc.exposure = agc.manual.exposure; + frameContext.agc.gain = agc.manual.gain; + } +} + /** * \copydoc libcamera::ipa::Algorithm::prepare */ void Agc::prepare(IPAContext &context, const uint32_t frame, IPAFrameContext &frameContext, rkisp1_params_cfg *params) { - frameContext.agc.exposure = context.activeState.agc.exposure; - frameContext.agc.gain = context.activeState.agc.gain; + if (frameContext.agc.autoEnabled) { + frameContext.agc.exposure = context.activeState.agc.automatic.exposure; + frameContext.agc.gain = context.activeState.agc.automatic.gain; + } if (frame > 0) return; @@ -263,8 +312,8 @@ void Agc::computeExposure(IPAContext &context, IPAFrameContext &frameContext, << stepGain; /* Update the estimated exposure and gain. */ - activeState.agc.exposure = shutterTime / configuration.sensor.lineDuration; - activeState.agc.gain = stepGain; + activeState.agc.automatic.exposure = shutterTime / configuration.sensor.lineDuration; + activeState.agc.automatic.gain = stepGain; } /** diff --git a/src/ipa/rkisp1/algorithms/agc.h b/src/ipa/rkisp1/algorithms/agc.h index da4d2d4e..a228d0c3 100644 --- a/src/ipa/rkisp1/algorithms/agc.h +++ b/src/ipa/rkisp1/algorithms/agc.h @@ -26,6 +26,10 @@ public: ~Agc() = default; 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; diff --git a/src/ipa/rkisp1/ipa_context.h b/src/ipa/rkisp1/ipa_context.h index 3e47ac66..b9b20653 100644 --- a/src/ipa/rkisp1/ipa_context.h +++ b/src/ipa/rkisp1/ipa_context.h @@ -54,8 +54,16 @@ struct IPASessionConfiguration { struct IPAActiveState { struct { - uint32_t exposure; - double gain; + struct { + uint32_t exposure; + double gain; + } manual; + struct { + uint32_t exposure; + double gain; + } automatic; + + bool autoEnabled; } agc; struct { @@ -96,6 +104,7 @@ struct IPAFrameContext : public FrameContext { struct { uint32_t exposure; double gain; + bool autoEnabled; } agc; struct { diff --git a/src/ipa/rkisp1/rkisp1.cpp b/src/ipa/rkisp1/rkisp1.cpp index dd551c7b..52dffc09 100644 --- a/src/ipa/rkisp1/rkisp1.cpp +++ b/src/ipa/rkisp1/rkisp1.cpp @@ -157,6 +157,9 @@ int IPARkISP1::init(const IPASettings &settings, unsigned int hwRevision, return -ENODEV; } + context_.configuration.sensor.lineDuration = sensorInfo.minLineLength + * 1.0s / sensorInfo.pixelRate; + /* Load the tuning data file. */ File file(settings.configurationFile); if (!file.open(File::OpenModeFlag::ReadOnly)) { @@ -376,6 +379,28 @@ void IPARkISP1::updateControls(const IPACameraSensorInfo &sensorInfo, { ControlInfoMap::Map ctrlMap = rkisp1Controls; + /* + * Compute exposure time limits from the V4L2_CID_EXPOSURE control + * limits and the line duration. + */ + double lineDuration = context_.configuration.sensor.lineDuration.get(); + const ControlInfo &v4l2Exposure = sensorControls.find(V4L2_CID_EXPOSURE)->second; + int32_t minExposure = v4l2Exposure.min().get() * lineDuration; + int32_t maxExposure = v4l2Exposure.max().get() * lineDuration; + int32_t defExposure = v4l2Exposure.def().get() * lineDuration; + ctrlMap.emplace(std::piecewise_construct, + std::forward_as_tuple(&controls::ExposureTime), + std::forward_as_tuple(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()); + float maxGain = camHelper_->gain(v4l2Gain.max().get()); + float defGain = camHelper_->gain(v4l2Gain.def().get()); + ctrlMap.emplace(std::piecewise_construct, + std::forward_as_tuple(&controls::AnalogueGain), + std::forward_as_tuple(minGain, maxGain, defGain)); + /* * Compute the frame duration limits. * -- cgit v1.2.1