diff --git a/src/ipa/rpi/common/ipa_base.cpp b/src/ipa/rpi/common/ipa_base.cpp index a5bdcbb5838c..8b4eb75e7e6b 100644 --- a/src/ipa/rpi/common/ipa_base.cpp +++ b/src/ipa/rpi/common/ipa_base.cpp @@ -868,7 +868,7 @@ void IpaBase::applyControls(const ControlList &controls) if (agc->autoGainEnabled()) break; - agc->setFixedAnalogueGain(0, ctrl.second.get()); + agc->setFixedGain(0, ctrl.second.get()); libcameraMetadata_.set(controls::AnalogueGain, ctrl.second.get()); diff --git a/src/ipa/rpi/controller/agc_algorithm.h b/src/ipa/rpi/controller/agc_algorithm.h index fdaa10e6c176..9fa2bd205160 100644 --- a/src/ipa/rpi/controller/agc_algorithm.h +++ b/src/ipa/rpi/controller/agc_algorithm.h @@ -26,7 +26,7 @@ public: 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 setFixedGain(unsigned int channel, double fixedGain) = 0; virtual void setMeteringMode(std::string const &meteringModeName) = 0; virtual void setExposureMode(std::string const &exposureModeName) = 0; virtual void setConstraintMode(std::string const &contraintModeName) = 0; diff --git a/src/ipa/rpi/controller/agc_status.h b/src/ipa/rpi/controller/agc_status.h index 9308b156051c..d4cedcf49c3c 100644 --- a/src/ipa/rpi/controller/agc_status.h +++ b/src/ipa/rpi/controller/agc_status.h @@ -37,7 +37,7 @@ struct AgcStatus { libcamera::utils::Duration flickerPeriod; int floatingRegionEnable; libcamera::utils::Duration fixedExposureTime; - double fixedAnalogueGain; + double fixedGain; unsigned int channel; HdrStatus hdr; }; diff --git a/src/ipa/rpi/controller/rpi/agc.cpp b/src/ipa/rpi/controller/rpi/agc.cpp index 02bfdb4a5e22..afda2e364f64 100644 --- a/src/ipa/rpi/controller/rpi/agc.cpp +++ b/src/ipa/rpi/controller/rpi/agc.cpp @@ -184,14 +184,14 @@ void Agc::setFixedExposureTime(unsigned int channelIndex, Duration fixedExposure channelData_[channelIndex].channel.setFixedExposureTime(fixedExposureTime); } -void Agc::setFixedAnalogueGain(unsigned int channelIndex, double fixedAnalogueGain) +void Agc::setFixedGain(unsigned int channelIndex, double fixedGain) { if (checkChannel(channelIndex)) return; - LOG(RPiAgc, Debug) << "setFixedAnalogueGain " << fixedAnalogueGain + LOG(RPiAgc, Debug) << "setFixedGain " << fixedGain << " for channel " << channelIndex; - channelData_[channelIndex].channel.setFixedAnalogueGain(fixedAnalogueGain); + channelData_[channelIndex].channel.setFixedGain(fixedGain); } void Agc::setMeteringMode(std::string const &meteringModeName) diff --git a/src/ipa/rpi/controller/rpi/agc.h b/src/ipa/rpi/controller/rpi/agc.h index c3a940bf697a..966630a26303 100644 --- a/src/ipa/rpi/controller/rpi/agc.h +++ b/src/ipa/rpi/controller/rpi/agc.h @@ -35,8 +35,8 @@ public: 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 setFixedGain(unsigned int channelIndex, + double fixedGain) override; void setMeteringMode(std::string const &meteringModeName) override; void setExposureMode(std::string const &exposureModeName) override; void setConstraintMode(std::string const &contraintModeName) override; diff --git a/src/ipa/rpi/controller/rpi/agc_channel.cpp b/src/ipa/rpi/controller/rpi/agc_channel.cpp index f6a191d50fb3..9e4661616051 100644 --- a/src/ipa/rpi/controller/rpi/agc_channel.cpp +++ b/src/ipa/rpi/controller/rpi/agc_channel.cpp @@ -275,7 +275,7 @@ AgcChannel::AgcChannel() : meteringMode_(nullptr), exposureMode_(nullptr), constraintMode_(nullptr), frameCount_(0), lockCount_(0), lastTargetExposure_(0s), ev_(1.0), flickerPeriod_(0s), - maxExposureTime_(0s), fixedExposureTime_(0s), fixedAnalogueGain_(0.0) + maxExposureTime_(0s), fixedExposureTime_(0s), fixedGain_(0.0) { /* Set AWB default values in case early frames have no updates in metadata. */ awb_.gainR = 1.0; @@ -339,17 +339,17 @@ bool AgcChannel::autoExposureEnabled() const void AgcChannel::disableAutoGain() { - fixedAnalogueGain_ = status_.analogueGain; + fixedGain_ = status_.analogueGain; } void AgcChannel::enableAutoGain() { - fixedAnalogueGain_ = 0; + fixedGain_ = 0; } bool AgcChannel::autoGainEnabled() const { - return fixedAnalogueGain_ == 0; + return fixedGain_ == 0; } unsigned int AgcChannel::getConvergenceFrames() const @@ -358,7 +358,7 @@ unsigned int AgcChannel::getConvergenceFrames() const * 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 (fixedExposureTime_ && fixedAnalogueGain_) + if (fixedExposureTime_ && fixedGain_) return 0; else return config_.convergenceFrames; @@ -398,11 +398,9 @@ void AgcChannel::setFixedExposureTime(Duration fixedExposureTime) status_.exposureTime = limitExposureTime(fixedExposureTime_); } -void AgcChannel::setFixedAnalogueGain(double fixedAnalogueGain) +void AgcChannel::setFixedGain(double fixedGain) { - fixedAnalogueGain_ = fixedAnalogueGain; - /* Set this in case someone calls disableAuto() straight after. */ - status_.analogueGain = limitGain(fixedAnalogueGain); + fixedGain_ = fixedGain; } void AgcChannel::setMeteringMode(std::string const &meteringModeName) @@ -436,9 +434,9 @@ void AgcChannel::switchMode(CameraMode const &cameraMode, mode_ = cameraMode; Duration fixedExposureTime = limitExposureTime(fixedExposureTime_); - if (fixedExposureTime && fixedAnalogueGain_) { + if (fixedExposureTime && fixedGain_) { /* This is the equivalent of computeTargetExposure and applyDigitalGain. */ - target_.totalExposureNoDG = fixedExposureTime_ * fixedAnalogueGain_; + target_.totalExposureNoDG = fixedExposureTime_ * fixedGain_; target_.totalExposure = target_.totalExposureNoDG; /* Equivalent of filterExposure. This resets any "history". */ @@ -446,7 +444,7 @@ void AgcChannel::switchMode(CameraMode const &cameraMode, /* Equivalent of divideUpExposure. */ filtered_.exposureTime = fixedExposureTime; - filtered_.analogueGain = fixedAnalogueGain_; + filtered_.analogueGain = fixedGain_; } else if (status_.totalExposureValue) { /* * On a mode switch, various things could happen: @@ -476,7 +474,7 @@ void AgcChannel::switchMode(CameraMode const &cameraMode, /* Equivalent of divideUpExposure. */ filtered_.exposureTime = fixedExposureTime ? fixedExposureTime : config_.defaultExposureTime; - filtered_.analogueGain = fixedAnalogueGain_ ? fixedAnalogueGain_ : config_.defaultAnalogueGain; + filtered_.analogueGain = fixedGain_ ? fixedGain_ : config_.defaultAnalogueGain; } writeAndFinish(metadata, false); @@ -608,11 +606,11 @@ void AgcChannel::housekeepConfig() /* First fetch all the up-to-date settings, so no one else has to do it. */ status_.ev = ev_; status_.fixedExposureTime = limitExposureTime(fixedExposureTime_); - status_.fixedAnalogueGain = fixedAnalogueGain_; + status_.fixedGain = fixedGain_; status_.flickerPeriod = flickerPeriod_; LOG(RPiAgc, Debug) << "ev " << status_.ev << " fixedExposureTime " - << status_.fixedExposureTime << " fixedAnalogueGain " - << status_.fixedAnalogueGain; + << status_.fixedExposureTime << " fixedGain " + << status_.fixedGain; /* * Make sure the "mode" pointers point to the up-to-date things, if * they've changed. @@ -799,9 +797,9 @@ void AgcChannel::computeGain(StatisticsPtr &statistics, Metadata *imageMetadata, void AgcChannel::computeTargetExposure(double gain) { - if (status_.fixedExposureTime && status_.fixedAnalogueGain) { + if (status_.fixedExposureTime && status_.fixedGain) { target_.totalExposure = - status_.fixedExposureTime * status_.fixedAnalogueGain; + status_.fixedExposureTime * status_.fixedGain; } else { /* * The statistics reflect the image without digital gain, so the final @@ -815,8 +813,8 @@ void AgcChannel::computeTargetExposure(double gain) maxExposureTime = limitExposureTime(maxExposureTime); Duration maxTotalExposure = maxExposureTime * - (status_.fixedAnalogueGain != 0.0 - ? status_.fixedAnalogueGain + (status_.fixedGain != 0.0 + ? status_.fixedGain : exposureMode_->gain.back()); target_.totalExposure = std::min(target_.totalExposure, maxTotalExposure); } @@ -896,7 +894,7 @@ void AgcChannel::filterExposure() * region, because we want to reflect any user exposure/gain updates, * however small. */ - if ((status_.fixedExposureTime && status_.fixedAnalogueGain) || + if ((status_.fixedExposureTime && status_.fixedGain) || frameCount_ <= config_.startupFrames) { speed = 1.0; stableRegion = 0.0; @@ -930,63 +928,64 @@ void AgcChannel::divideUpExposure() */ Duration exposureValue = filtered_.totalExposureNoDG; Duration exposureTime; - double analogueGain; + double gain; 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 (exposureTime * analogueGain < exposureValue) { + gain = status_.fixedGain != 0.0 ? status_.fixedGain + : exposureMode_->gain[0]; + gain = limitGain(gain); + if (exposureTime * gain < exposureValue) { for (unsigned int stage = 1; stage < exposureMode_->gain.size(); stage++) { if (!status_.fixedExposureTime) { Duration stageExposureTime = limitExposureTime(exposureMode_->exposureTime[stage]); - if (stageExposureTime * analogueGain >= exposureValue) { - exposureTime = exposureValue / analogueGain; + if (stageExposureTime * gain >= exposureValue) { + exposureTime = exposureValue / gain; break; } exposureTime = stageExposureTime; } - if (status_.fixedAnalogueGain == 0.0) { + if (status_.fixedGain == 0.0) { if (exposureMode_->gain[stage] * exposureTime >= exposureValue) { - analogueGain = exposureValue / exposureTime; + gain = exposureValue / exposureTime; break; } - analogueGain = exposureMode_->gain[stage]; - analogueGain = limitGain(analogueGain); + gain = exposureMode_->gain[stage]; + gain = limitGain(gain); } } } LOG(RPiAgc, Debug) << "Divided up exposure time and gain are " << exposureTime - << " and " << analogueGain; + << " and " << gain; /* * Finally adjust exposure time for flicker avoidance (require both * exposure time and gain not to be fixed). */ - if (!status_.fixedExposureTime && !status_.fixedAnalogueGain && + if (!status_.fixedExposureTime && !status_.fixedGain && status_.flickerPeriod) { int flickerPeriods = exposureTime / status_.flickerPeriod; if (flickerPeriods) { Duration newExposureTime = flickerPeriods * status_.flickerPeriod; - analogueGain *= exposureTime / newExposureTime; + gain *= exposureTime / newExposureTime; /* * We should still not allow the ag to go over the * largest value in the exposure mode. Note that this * may force more of the total exposure into the digital * gain as a side-effect. */ - analogueGain = std::min(analogueGain, exposureMode_->gain.back()); - analogueGain = limitGain(analogueGain); + gain = std::min(gain, exposureMode_->gain.back()); + gain = limitGain(gain); exposureTime = newExposureTime; } LOG(RPiAgc, Debug) << "After flicker avoidance, exposure time " - << exposureTime << " gain " << analogueGain; + << exposureTime << " gain " << gain; } filtered_.exposureTime = exposureTime; - filtered_.analogueGain = analogueGain; + /* We ask for all the gain as analogue gain; prepare() will be told what we got. */ + filtered_.analogueGain = gain; } void AgcChannel::writeAndFinish(Metadata *imageMetadata, bool desaturate) diff --git a/src/ipa/rpi/controller/rpi/agc_channel.h b/src/ipa/rpi/controller/rpi/agc_channel.h index e3475d864b0b..93229128abf1 100644 --- a/src/ipa/rpi/controller/rpi/agc_channel.h +++ b/src/ipa/rpi/controller/rpi/agc_channel.h @@ -93,7 +93,7 @@ public: void setFlickerPeriod(libcamera::utils::Duration flickerPeriod); void setMaxExposureTime(libcamera::utils::Duration maxExposureTime); void setFixedExposureTime(libcamera::utils::Duration fixedExposureTime); - void setFixedAnalogueGain(double fixedAnalogueGain); + void setFixedGain(double fixedGain); void setMeteringMode(std::string const &meteringModeName); void setExposureMode(std::string const &exposureModeName); void setConstraintMode(std::string const &contraintModeName); @@ -153,7 +153,7 @@ private: libcamera::utils::Duration flickerPeriod_; libcamera::utils::Duration maxExposureTime_; libcamera::utils::Duration fixedExposureTime_; - double fixedAnalogueGain_; + double fixedGain_; }; } /* namespace RPiController */