diff options
Diffstat (limited to 'users/flokli/ipu6-softisp/libcamera/0009-libcamera-ipa-add-Soft-IPA.patch')
| -rw-r--r-- | users/flokli/ipu6-softisp/libcamera/0009-libcamera-ipa-add-Soft-IPA.patch | 506 |
1 files changed, 506 insertions, 0 deletions
diff --git a/users/flokli/ipu6-softisp/libcamera/0009-libcamera-ipa-add-Soft-IPA.patch b/users/flokli/ipu6-softisp/libcamera/0009-libcamera-ipa-add-Soft-IPA.patch new file mode 100644 index 000000000000..40f9403ba984 --- /dev/null +++ b/users/flokli/ipu6-softisp/libcamera/0009-libcamera-ipa-add-Soft-IPA.patch @@ -0,0 +1,506 @@ +From 5261c801d8425fa82bcbd3da0199d06153eb5bd7 Mon Sep 17 00:00:00 2001 +From: Andrey Konovalov <andrey.konovalov@linaro.org> +Date: Mon, 11 Mar 2024 15:15:13 +0100 +Subject: [PATCH 09/21] libcamera: ipa: add Soft IPA + +Define the Soft IPA main and event interfaces, add the Soft IPA +implementation. + +The current src/ipa/meson.build assumes the IPA name to match the +pipeline name. For this reason "-Dipas=simple" is used for the +Soft IPA module. + +Auto exposure/gain and AWB implementation by Dennis, Toon and Martti. + +Auto exposure/gain targets a Mean Sample Value of 2.5 following +the MSV calculation algorithm from: +https://www.araa.asn.au/acra/acra2007/papers/paper84final.pdf + +Tested-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org> # sc8280xp Lenovo x13s +Tested-by: Pavel Machek <pavel@ucw.cz> +Reviewed-by: Pavel Machek <pavel@ucw.cz> +Signed-off-by: Andrey Konovalov <andrey.konovalov@linaro.org> +Co-developed-by: Dennis Bonke <admin@dennisbonke.com> +Signed-off-by: Dennis Bonke <admin@dennisbonke.com> +Co-developed-by: Marttico <g.martti@gmail.com> +Signed-off-by: Marttico <g.martti@gmail.com> +Co-developed-by: Toon Langendam <t.langendam@gmail.com> +Signed-off-by: Toon Langendam <t.langendam@gmail.com> +Signed-off-by: Hans de Goede <hdegoede@redhat.com> +--- + Documentation/Doxyfile.in | 1 + + include/libcamera/ipa/meson.build | 1 + + include/libcamera/ipa/soft.mojom | 28 +++ + meson_options.txt | 2 +- + src/ipa/simple/data/meson.build | 9 + + src/ipa/simple/data/soft.conf | 3 + + src/ipa/simple/meson.build | 25 +++ + src/ipa/simple/soft_simple.cpp | 326 ++++++++++++++++++++++++++++++ + 8 files changed, 394 insertions(+), 1 deletion(-) + create mode 100644 include/libcamera/ipa/soft.mojom + create mode 100644 src/ipa/simple/data/meson.build + create mode 100644 src/ipa/simple/data/soft.conf + create mode 100644 src/ipa/simple/meson.build + create mode 100644 src/ipa/simple/soft_simple.cpp + +diff --git a/Documentation/Doxyfile.in b/Documentation/Doxyfile.in +index a86ea6c1..2be8d47b 100644 +--- a/Documentation/Doxyfile.in ++++ b/Documentation/Doxyfile.in +@@ -44,6 +44,7 @@ EXCLUDE = @TOP_SRCDIR@/include/libcamera/base/span.h \ + @TOP_SRCDIR@/src/libcamera/pipeline/ \ + @TOP_SRCDIR@/src/libcamera/tracepoints.cpp \ + @TOP_BUILDDIR@/include/libcamera/internal/tracepoints.h \ ++ @TOP_BUILDDIR@/include/libcamera/ipa/soft_ipa_interface.h \ + @TOP_BUILDDIR@/src/libcamera/proxy/ + + EXCLUDE_PATTERNS = @TOP_BUILDDIR@/include/libcamera/ipa/*_serializer.h \ +diff --git a/include/libcamera/ipa/meson.build b/include/libcamera/ipa/meson.build +index f3b4881c..3352d08f 100644 +--- a/include/libcamera/ipa/meson.build ++++ b/include/libcamera/ipa/meson.build +@@ -65,6 +65,7 @@ pipeline_ipa_mojom_mapping = { + 'ipu3': 'ipu3.mojom', + 'rkisp1': 'rkisp1.mojom', + 'rpi/vc4': 'raspberrypi.mojom', ++ 'simple': 'soft.mojom', + 'vimc': 'vimc.mojom', + } + +diff --git a/include/libcamera/ipa/soft.mojom b/include/libcamera/ipa/soft.mojom +new file mode 100644 +index 00000000..c249bd75 +--- /dev/null ++++ b/include/libcamera/ipa/soft.mojom +@@ -0,0 +1,28 @@ ++/* SPDX-License-Identifier: LGPL-2.1-or-later */ ++ ++/* ++ * \todo Document the interface and remove the related EXCLUDE_PATTERNS entry. ++ */ ++ ++module ipa.soft; ++ ++import "include/libcamera/ipa/core.mojom"; ++ ++interface IPASoftInterface { ++ init(libcamera.IPASettings settings, ++ libcamera.SharedFD fdStats, ++ libcamera.SharedFD fdParams, ++ libcamera.ControlInfoMap sensorCtrlInfoMap) ++ => (int32 ret); ++ start() => (int32 ret); ++ stop(); ++ configure(libcamera.ControlInfoMap sensorCtrlInfoMap) ++ => (int32 ret); ++ ++ [async] processStats(libcamera.ControlList sensorControls); ++}; ++ ++interface IPASoftEventInterface { ++ setSensorControls(libcamera.ControlList sensorControls); ++ setIspParams(int32 dummy); ++}; +diff --git a/meson_options.txt b/meson_options.txt +index 5fdc7be8..94372e47 100644 +--- a/meson_options.txt ++++ b/meson_options.txt +@@ -27,7 +27,7 @@ option('gstreamer', + + option('ipas', + type : 'array', +- choices : ['ipu3', 'rkisp1', 'rpi/vc4', 'vimc'], ++ choices : ['ipu3', 'rkisp1', 'rpi/vc4', 'simple', 'vimc'], + description : 'Select which IPA modules to build') + + option('lc-compliance', +diff --git a/src/ipa/simple/data/meson.build b/src/ipa/simple/data/meson.build +new file mode 100644 +index 00000000..33548cc6 +--- /dev/null ++++ b/src/ipa/simple/data/meson.build +@@ -0,0 +1,9 @@ ++# SPDX-License-Identifier: CC0-1.0 ++ ++conf_files = files([ ++ 'soft.conf', ++]) ++ ++install_data(conf_files, ++ install_dir : ipa_data_dir / 'soft', ++ install_tag : 'runtime') +diff --git a/src/ipa/simple/data/soft.conf b/src/ipa/simple/data/soft.conf +new file mode 100644 +index 00000000..0c70e7c0 +--- /dev/null ++++ b/src/ipa/simple/data/soft.conf +@@ -0,0 +1,3 @@ ++# SPDX-License-Identifier: LGPL-2.1-or-later ++# ++# Dummy configuration file for the soft IPA. +diff --git a/src/ipa/simple/meson.build b/src/ipa/simple/meson.build +new file mode 100644 +index 00000000..3e863db7 +--- /dev/null ++++ b/src/ipa/simple/meson.build +@@ -0,0 +1,25 @@ ++# SPDX-License-Identifier: CC0-1.0 ++ ++ipa_name = 'ipa_soft_simple' ++ ++mod = shared_module(ipa_name, ++ ['soft_simple.cpp', libcamera_generated_ipa_headers], ++ 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 ++ ++subdir('data') ++ ++ipa_names += ipa_name +diff --git a/src/ipa/simple/soft_simple.cpp b/src/ipa/simple/soft_simple.cpp +new file mode 100644 +index 00000000..312df4ba +--- /dev/null ++++ b/src/ipa/simple/soft_simple.cpp +@@ -0,0 +1,326 @@ ++/* SPDX-License-Identifier: LGPL-2.1-or-later */ ++/* ++ * Copyright (C) 2023, Linaro Ltd ++ * ++ * soft_simple.cpp - Simple Software Image Processing Algorithm module ++ */ ++ ++#include <sys/mman.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/camera_sensor.h" ++#include "libcamera/internal/software_isp/debayer_params.h" ++#include "libcamera/internal/software_isp/swisp_stats.h" ++ ++namespace libcamera { ++ ++LOG_DEFINE_CATEGORY(IPASoft) ++ ++namespace ipa::soft { ++ ++class IPASoftSimple : public ipa::soft::IPASoftInterface ++{ ++public: ++ IPASoftSimple() ++ : params_(static_cast<DebayerParams *>(MAP_FAILED)), ++ stats_(static_cast<SwIspStats *>(MAP_FAILED)), ignore_updates_(0) ++ { ++ } ++ ++ ~IPASoftSimple() ++ { ++ if (stats_ != MAP_FAILED) ++ munmap(stats_, sizeof(SwIspStats)); ++ if (params_ != MAP_FAILED) ++ munmap(params_, sizeof(DebayerParams)); ++ } ++ ++ int init(const IPASettings &settings, ++ const SharedFD &fdStats, ++ const SharedFD &fdParams, ++ const ControlInfoMap &sensorInfoMap) override; ++ int configure(const ControlInfoMap &sensorInfoMap) override; ++ ++ int start() override; ++ void stop() override; ++ ++ void processStats(const ControlList &sensorControls) override; ++ ++private: ++ void updateExposure(double exposureMSV); ++ ++ SharedFD fdStats_; ++ SharedFD fdParams_; ++ DebayerParams *params_; ++ SwIspStats *stats_; ++ ++ int32_t exposure_min_, exposure_max_; ++ int32_t again_min_, again_max_; ++ int32_t again_, exposure_; ++ unsigned int ignore_updates_; ++}; ++ ++int IPASoftSimple::init([[maybe_unused]] const IPASettings &settings, ++ const SharedFD &fdStats, ++ const SharedFD &fdParams, ++ const ControlInfoMap &sensorInfoMap) ++{ ++ fdStats_ = fdStats; ++ if (!fdStats_.isValid()) { ++ LOG(IPASoft, Error) << "Invalid Statistics handle"; ++ return -ENODEV; ++ } ++ ++ fdParams_ = fdParams; ++ if (!fdParams_.isValid()) { ++ LOG(IPASoft, Error) << "Invalid Parameters handle"; ++ return -ENODEV; ++ } ++ ++ params_ = static_cast<DebayerParams *>(mmap(nullptr, sizeof(DebayerParams), ++ PROT_WRITE, MAP_SHARED, ++ fdParams_.get(), 0)); ++ if (params_ == MAP_FAILED) { ++ LOG(IPASoft, Error) << "Unable to map Parameters"; ++ return -errno; ++ } ++ ++ stats_ = static_cast<SwIspStats *>(mmap(nullptr, sizeof(SwIspStats), ++ PROT_READ, MAP_SHARED, ++ fdStats_.get(), 0)); ++ if (stats_ == MAP_FAILED) { ++ LOG(IPASoft, Error) << "Unable to map Statistics"; ++ return -errno; ++ } ++ ++ if (sensorInfoMap.find(V4L2_CID_EXPOSURE) == sensorInfoMap.end()) { ++ LOG(IPASoft, Error) << "Don't have exposure control"; ++ return -EINVAL; ++ } ++ ++ if (sensorInfoMap.find(V4L2_CID_ANALOGUE_GAIN) == sensorInfoMap.end()) { ++ LOG(IPASoft, Error) << "Don't have gain control"; ++ return -EINVAL; ++ } ++ ++ return 0; ++} ++ ++int IPASoftSimple::configure(const ControlInfoMap &sensorInfoMap) ++{ ++ const ControlInfo &exposure_info = sensorInfoMap.find(V4L2_CID_EXPOSURE)->second; ++ const ControlInfo &gain_info = sensorInfoMap.find(V4L2_CID_ANALOGUE_GAIN)->second; ++ ++ exposure_min_ = exposure_info.min().get<int32_t>(); ++ exposure_max_ = exposure_info.max().get<int32_t>(); ++ if (!exposure_min_) { ++ LOG(IPASoft, Warning) << "Minimum exposure is zero, that can't be linear"; ++ exposure_min_ = 1; ++ } ++ ++ again_min_ = gain_info.min().get<int32_t>(); ++ again_max_ = gain_info.max().get<int32_t>(); ++ /* ++ * 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. ++ */ ++ if (!again_min_) { ++ LOG(IPASoft, Warning) << "Minimum gain is zero, that can't be linear"; ++ again_min_ = std::min(100, again_min_ / 2 + again_max_ / 2); ++ } ++ ++ LOG(IPASoft, Info) << "Exposure " << exposure_min_ << "-" << exposure_max_ ++ << ", gain " << again_min_ << "-" << again_max_; ++ ++ return 0; ++} ++ ++int IPASoftSimple::start() ++{ ++ return 0; ++} ++ ++void IPASoftSimple::stop() ++{ ++} ++ ++/* ++ * 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; ++/* ++ * The below value 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; ++ ++void IPASoftSimple::processStats(const ControlList &sensorControls) ++{ ++ /* ++ * Calculate red and blue gains for AWB. ++ * Clamp max gain at 4.0, this also avoids 0 division. ++ */ ++ if (stats_->sumR_ <= stats_->sumG_ / 4) ++ params_->gainR = 1024; ++ else ++ params_->gainR = 256 * stats_->sumG_ / stats_->sumR_; ++ ++ if (stats_->sumB_ <= stats_->sumG_ / 4) ++ params_->gainB = 1024; ++ else ++ params_->gainB = 256 * stats_->sumG_ / stats_->sumB_; ++ ++ /* Green gain and gamma values are fixed */ ++ params_->gainG = 256; ++ params_->gamma = 0.5; ++ ++ setIspParams.emit(0); ++ ++ /* ++ * AE / AGC, use 2 frames delay to make sure that the exposure and ++ * the gain set have applied to the camera sensor. ++ */ ++ if (ignore_updates_ > 0) { ++ --ignore_updates_; ++ return; ++ } ++ ++ /* ++ * Calculate Mean Sample Value (MSV) according to formula from: ++ * https://www.araa.asn.au/acra/acra2007/papers/paper84final.pdf ++ */ ++ constexpr unsigned int yHistValsPerBin = ++ SwIspStats::kYHistogramSize / kExposureBinsCount; ++ constexpr unsigned int yHistValsPerBinMod = ++ SwIspStats::kYHistogramSize / ++ (SwIspStats::kYHistogramSize % kExposureBinsCount + 1); ++ int ExposureBins[kExposureBinsCount] = {}; ++ unsigned int denom = 0; ++ unsigned int num = 0; ++ ++ for (unsigned int i = 0; i < SwIspStats::kYHistogramSize; i++) { ++ unsigned int idx = (i - (i / yHistValsPerBinMod)) / yHistValsPerBin; ++ ExposureBins[idx] += stats_->yHistogram[i]; ++ } ++ ++ for (unsigned int i = 0; i < kExposureBinsCount; i++) { ++ LOG(IPASoft, Debug) << i << ": " << ExposureBins[i]; ++ denom += ExposureBins[i]; ++ num += ExposureBins[i] * (i + 1); ++ } ++ ++ float exposureMSV = (float)num / denom; ++ ++ /* sanity check */ ++ if (!sensorControls.contains(V4L2_CID_EXPOSURE) || ++ !sensorControls.contains(V4L2_CID_ANALOGUE_GAIN)) { ++ LOG(IPASoft, Error) << "Control(s) missing"; ++ return; ++ } ++ ++ ControlList ctrls(sensorControls); ++ ++ exposure_ = ctrls.get(V4L2_CID_EXPOSURE).get<int32_t>(); ++ again_ = ctrls.get(V4L2_CID_ANALOGUE_GAIN).get<int32_t>(); ++ ++ updateExposure(exposureMSV); ++ ++ ctrls.set(V4L2_CID_EXPOSURE, exposure_); ++ ctrls.set(V4L2_CID_ANALOGUE_GAIN, again_); ++ ++ ignore_updates_ = 2; ++ ++ setSensorControls.emit(ctrls); ++ ++ LOG(IPASoft, Debug) << "exposureMSV " << exposureMSV ++ << " exp " << exposure_ << " again " << again_ ++ << " gain R/B " << params_->gainR << "/" << params_->gainB; ++} ++ ++void IPASoftSimple::updateExposure(double exposureMSV) ++{ ++ /* DENOMINATOR of 10 gives ~10% increment/decrement; DENOMINATOR of 5 - about ~20% */ ++ static constexpr uint8_t kExpDenominator = 10; ++ static constexpr uint8_t kExpNumeratorUp = kExpDenominator + 1; ++ static constexpr uint8_t kExpNumeratorDown = kExpDenominator - 1; ++ ++ int next; ++ ++ if (exposureMSV < kExposureOptimal - kExposureSatisfactory) { ++ next = exposure_ * kExpNumeratorUp / kExpDenominator; ++ if (next - exposure_ < 1) ++ exposure_ += 1; ++ else ++ exposure_ = next; ++ if (exposure_ >= exposure_max_) { ++ next = again_ * kExpNumeratorUp / kExpDenominator; ++ if (next - again_ < 1) ++ again_ += 1; ++ else ++ again_ = next; ++ } ++ } ++ ++ if (exposureMSV > kExposureOptimal + kExposureSatisfactory) { ++ if (exposure_ == exposure_max_ && again_ != again_min_) { ++ next = again_ * kExpNumeratorDown / kExpDenominator; ++ if (again_ - next < 1) ++ again_ -= 1; ++ else ++ again_ = next; ++ } else { ++ next = exposure_ * kExpNumeratorDown / kExpDenominator; ++ if (exposure_ - next < 1) ++ exposure_ -= 1; ++ else ++ exposure_ = next; ++ } ++ } ++ ++ exposure_ = std::clamp(exposure_, exposure_min_, exposure_max_); ++ again_ = std::clamp(again_, again_min_, again_max_); ++} ++ ++} /* namespace ipa::soft */ ++ ++/* ++ * External IPA module interface ++ */ ++extern "C" { ++const struct IPAModuleInfo ipaModuleInfo = { ++ IPA_MODULE_API_VERSION, ++ 0, ++ "SimplePipelineHandler", ++ "simple", ++}; ++ ++IPAInterface *ipaCreate() ++{ ++ return new ipa::soft::IPASoftSimple(); ++} ++ ++} /* extern "C" */ ++ ++} /* namespace libcamera */ +-- +2.43.2 + |