pipeline: ipa: raspberrypi: Refactor and move the Raspberry Pi code

Split the Raspberry Pi pipeline handler and IPA source code into common
and VC4/BCM2835 specific file structures.

For the pipeline handler, the common code files now live in
src/libcamera/pipeline/rpi/common/
and the VC4-specific files in src/libcamera/pipeline/rpi/vc4/.

For the IPA, the common code files now live in
src/ipa/rpi/{cam_helper,controller}/
and the vc4 specific files in src/ipa/rpi/vc4/. With this change, the
camera tuning files are now installed under share/libcamera/ipa/rpi/vc4/.

To build the pipeline and IPA, the meson configuration options have now
changed from "raspberrypi" to "rpi/vc4":

meson setup build -Dipas=rpi/vc4 -Dpipelines=rpi/vc4

Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

1 files changed, 0 insertions, 133 deletions

diff --git a/src/ipa/raspberrypi/controller/rpi/agc.h b/src/ipa/raspberrypi/controller/rpi/agc.h
deleted file mode 100644
index 4e5f272f..00000000
--- a/src/ipa/raspberrypi/controller/rpi/agc.h
+++ /dev/null
@@ -1,133 +0,0 @@
-/* SPDX-License-Identifier: BSD-2-Clause */
-/*
- * Copyright (C) 2019, Raspberry Pi Ltd
- *
- * agc.h - AGC/AEC control algorithm
- */
-#pragma once
-
-#include <vector>
-#include <mutex>
-
-#include <libcamera/base/utils.h>
-
-#include "../agc_algorithm.h"
-#include "../agc_status.h"
-#include "../pwl.h"
-
-/* This is our implementation of AGC. */
-
-namespace RPiController {
-
-struct AgcMeteringMode {
-	std::vector<double> weights;
-	int read(const libcamera::YamlObject &params);
-};
-
-struct AgcExposureMode {
-	std::vector<libcamera::utils::Duration> shutter;
-	std::vector<double> gain;
-	int read(const libcamera::YamlObject &params);
-};
-
-struct AgcConstraint {
-	enum class Bound { LOWER = 0, UPPER = 1 };
-	Bound bound;
-	double qLo;
-	double qHi;
-	Pwl yTarget;
-	int read(const libcamera::YamlObject &params);
-};
-
-typedef std::vector<AgcConstraint> AgcConstraintMode;
-
-struct AgcConfig {
-	int read(const libcamera::YamlObject &params);
-	std::map<std::string, AgcMeteringMode> meteringModes;
-	std::map<std::string, AgcExposureMode> exposureModes;
-	std::map<std::string, AgcConstraintMode> constraintModes;
-	Pwl yTarget;
-	double speed;
-	uint16_t startupFrames;
-	unsigned int convergenceFrames;
-	double maxChange;
-	double minChange;
-	double fastReduceThreshold;
-	double speedUpThreshold;
-	std::string defaultMeteringMode;
-	std::string defaultExposureMode;
-	std::string defaultConstraintMode;
-	double baseEv;
-	libcamera::utils::Duration defaultExposureTime;
-	double defaultAnalogueGain;
-};
-
-class Agc : public AgcAlgorithm
-{
-public:
-	Agc(Controller *controller);
-	char const *name() const override;
-	int read(const libcamera::YamlObject &params) override;
-	unsigned int getConvergenceFrames() const override;
-	void setEv(double ev) override;
-	void setFlickerPeriod(libcamera::utils::Duration flickerPeriod) override;
-	void setMaxShutter(libcamera::utils::Duration maxShutter) override;
-	void setFixedShutter(libcamera::utils::Duration fixedShutter) override;
-	void setFixedAnalogueGain(double fixedAnalogueGain) override;
-	void setMeteringMode(std::string const &meteringModeName) override;
-	void setExposureMode(std::string const &exposureModeName) override;
-	void setConstraintMode(std::string const &contraintModeName) override;
-	void enableAuto() override;
-	void disableAuto() override;
-	void switchMode(CameraMode const &cameraMode, Metadata *metadata) override;
-	void prepare(Metadata *imageMetadata) override;
-	void process(StatisticsPtr &stats, Metadata *imageMetadata) override;
-
-private:
-	void updateLockStatus(DeviceStatus const &deviceStatus);
-	AgcConfig config_;
-	void housekeepConfig();
-	void fetchCurrentExposure(Metadata *imageMetadata);
-	void fetchAwbStatus(Metadata *imageMetadata);
-	void computeGain(StatisticsPtr &statistics, Metadata *imageMetadata,
-			 double &gain, double &targetY);
-	void computeTargetExposure(double gain);
-	bool applyDigitalGain(double gain, double targetY);
-	void filterExposure(bool desaturate);
-	void divideUpExposure();
-	void writeAndFinish(Metadata *imageMetadata, bool desaturate);
-	libcamera::utils::Duration limitShutter(libcamera::utils::Duration shutter);
-	double limitGain(double gain) const;
-	AgcMeteringMode *meteringMode_;
-	AgcExposureMode *exposureMode_;
-	AgcConstraintMode *constraintMode_;
-	CameraMode mode_;
-	uint64_t frameCount_;
-	AwbStatus awb_;
-	struct ExposureValues {
-		ExposureValues();
-
-		libcamera::utils::Duration shutter;
-		double analogueGain;
-		libcamera::utils::Duration totalExposure;
-		libcamera::utils::Duration totalExposureNoDG; /* without digital gain */
-	};
-	ExposureValues current_;  /* values for the current frame */
-	ExposureValues target_;   /* calculate the values we want here */
-	ExposureValues filtered_; /* these values are filtered towards target */
-	AgcStatus status_;
-	int lockCount_;
-	DeviceStatus lastDeviceStatus_;
-	libcamera::utils::Duration lastTargetExposure_;
-	/* Below here the "settings" that applications can change. */
-	std::string meteringModeName_;
-	std::string exposureModeName_;
-	std::string constraintModeName_;
-	double ev_;
-	libcamera::utils::Duration flickerPeriod_;
-	libcamera::utils::Duration maxShutter_;
-	libcamera::utils::Duration fixedShutter_;
-	double fixedAnalogueGain_;
-};
-
-} /* namespace RPiController */