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/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
* Copyright (C) 2023, Linaro Ltd
*
* software_isp.h - Simple software ISP implementation
*/
#pragma once
#include <functional>
#include <initializer_list>
#include <map>
#include <memory>
#include <string>
#include <tuple>
#include <vector>
#include <libcamera/base/class.h>
#include <libcamera/base/log.h>
#include <libcamera/base/signal.h>
#include <libcamera/base/thread.h>
#include <libcamera/geometry.h>
#include <libcamera/pixel_format.h>
#include <libcamera/ipa/soft_ipa_interface.h>
#include <libcamera/ipa/soft_ipa_proxy.h>
#include "libcamera/internal/camera_sensor.h"
#include "libcamera/internal/dma_heaps.h"
#include "libcamera/internal/pipeline_handler.h"
#include "libcamera/internal/shared_mem_object.h"
#include "libcamera/internal/software_isp/debayer_params.h"
namespace libcamera {
class DebayerCpu;
class FrameBuffer;
class PixelFormat;
struct StreamConfiguration;
LOG_DECLARE_CATEGORY(SoftwareIsp)
class SoftwareIsp
{
public:
SoftwareIsp(PipelineHandler *pipe, const CameraSensor *sensor);
~SoftwareIsp();
int loadConfiguration([[maybe_unused]] const std::string &filename) { return 0; }
bool isValid() const;
std::vector<PixelFormat> formats(PixelFormat input);
SizeRange sizes(PixelFormat inputFormat, const Size &inputSize);
std::tuple<unsigned int, unsigned int>
strideAndFrameSize(const PixelFormat &outputFormat, const Size &size);
int configure(const StreamConfiguration &inputCfg,
const std::vector<std::reference_wrapper<StreamConfiguration>> &outputCfgs,
const ControlInfoMap &sensorControls);
int exportBuffers(unsigned int output, unsigned int count,
std::vector<std::unique_ptr<FrameBuffer>> *buffers);
void processStats(const ControlList &sensorControls);
int start();
void stop();
int queueBuffers(FrameBuffer *input,
const std::map<unsigned int, FrameBuffer *> &outputs);
void process(FrameBuffer *input, FrameBuffer *output);
Signal<FrameBuffer *> inputBufferReady;
Signal<FrameBuffer *> outputBufferReady;
Signal<> ispStatsReady;
Signal<const ControlList &> setSensorControls;
private:
void saveIspParams();
void setSensorCtrls(const ControlList &sensorControls);
void statsReady();
void inputReady(FrameBuffer *input);
void outputReady(FrameBuffer *output);
std::unique_ptr<DebayerCpu> debayer_;
Thread ispWorkerThread_;
SharedMemObject<DebayerParams> sharedParams_;
DebayerParams debayerParams_;
DmaHeap dmaHeap_;
std::unique_ptr<ipa::soft::IPAProxySoft> ipa_;
};
} /* namespace libcamera */
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