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/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
 * Copyright (C) 2021, Google Inc.
 *
 * camera_buffer.h - Frame buffer handling interface definition
 */
#ifndef __ANDROID_CAMERA_BUFFER_H__
#define __ANDROID_CAMERA_BUFFER_H__

#include <hardware/camera3.h>

#include <libcamera/class.h>
#include <libcamera/span.h>

class CameraBuffer final : public libcamera::Extensible
{
	LIBCAMERA_DECLARE_PRIVATE(CameraBuffer)

public:
	CameraBuffer(buffer_handle_t camera3Buffer, int flags);
	~CameraBuffer();

	bool isValid() const;

	unsigned int numPlanes() const;

	libcamera::Span<const uint8_t> plane(unsigned int plane) const;
	libcamera::Span<uint8_t> plane(unsigned int plane);

	size_t jpegBufferSize(size_t maxJpegBufferSize) const;
};

#define PUBLIC_CAMERA_BUFFER_IMPLEMENTATION				\
CameraBuffer::CameraBuffer(buffer_handle_t camera3Buffer, int flags)	\
	: Extensible(new Private(this, camera3Buffer, flags))		\
{									\
}									\
CameraBuffer::~CameraBuffer()						\
{									\
}									\
bool CameraBuffer::isValid() const					\
{									\
	const Private *const d = LIBCAMERA_D_PTR();			\
	return d->isValid();						\
}									\
unsigned int CameraBuffer::numPlanes() const				\
{									\
	const Private *const d = LIBCAMERA_D_PTR();			\
	return d->numPlanes();						\
}									\
Span<const uint8_t> CameraBuffer::plane(unsigned int plane) const	\
{									\
	const Private *const d = LIBCAMERA_D_PTR();			\
	return const_cast<Private *>(d)->plane(plane);			\
}									\
Span<uint8_t> CameraBuffer::plane(unsigned int plane)			\
{									\
	Private *const d = LIBCAMERA_D_PTR();				\
	return d->plane(plane);						\
}									\
size_t CameraBuffer::jpegBufferSize(size_t maxJpegBufferSize) const	\
{									\
	const Private *const d = LIBCAMERA_D_PTR();			\
	return d->jpegBufferSize(maxJpegBufferSize);			\
}
#endif /* __ANDROID_CAMERA_BUFFER_H__ */
n>(); int initialize(); int open(const hw_module_t *hardwareModule); void close(); unsigned int id() const { return id_; } camera3_device_t *camera3Device() { return &camera3Device_; } const std::shared_ptr<libcamera::Camera> &camera() const { return camera_; } libcamera::CameraConfiguration *cameraConfiguration() const { return config_.get(); } const std::string &maker() const { return maker_; } const std::string &model() const { return model_; } int facing() const { return facing_; } int orientation() const { return orientation_; } unsigned int maxJpegBufferSize() const { return maxJpegBufferSize_; } void setCallbacks(const camera3_callback_ops_t *callbacks); const camera_metadata_t *getStaticMetadata(); const camera_metadata_t *constructDefaultRequestSettings(int type); int configureStreams(camera3_stream_configuration_t *stream_list); int processCaptureRequest(camera3_capture_request_t *request); void requestComplete(libcamera::Request *request); protected: std::string logPrefix() const override; private: CameraDevice(unsigned int id, std::shared_ptr<libcamera::Camera> camera); struct Camera3RequestDescriptor { Camera3RequestDescriptor(libcamera::Camera *camera, const camera3_capture_request_t *camera3Request); ~Camera3RequestDescriptor(); uint32_t frameNumber_; std::vector<camera3_stream_buffer_t> buffers_; std::vector<std::unique_ptr<libcamera::FrameBuffer>> frameBuffers_; CameraMetadata settings_; std::unique_ptr<CaptureRequest> request_; }; struct Camera3StreamConfiguration { libcamera::Size resolution; int androidFormat; }; int initializeStreamConfigurations(); std::vector<libcamera::Size> getYUVResolutions(libcamera::CameraConfiguration *cameraConfig, const libcamera::PixelFormat &pixelFormat, const std::vector<libcamera::Size> &resolutions); std::vector<libcamera::Size> getRawResolutions(const libcamera::PixelFormat &pixelFormat); std::tuple<uint32_t, uint32_t> calculateStaticMetadataSize(); libcamera::FrameBuffer *createFrameBuffer(const buffer_handle_t camera3buffer); void notifyShutter(uint32_t frameNumber, uint64_t timestamp); void notifyError(uint32_t frameNumber, camera3_stream_t *stream); std::unique_ptr<CameraMetadata> requestTemplatePreview(); std::unique_ptr<CameraMetadata> requestTemplateVideo(); libcamera::PixelFormat toPixelFormat(int format) const; int processControls(Camera3RequestDescriptor *descriptor); std::unique_ptr<CameraMetadata> getResultMetadata( const Camera3RequestDescriptor &descriptor, int64_t timestamp) const; unsigned int id_; camera3_device_t camera3Device_; CameraWorker worker_; bool running_; std::shared_ptr<libcamera::Camera> camera_; std::unique_ptr<libcamera::CameraConfiguration> config_; std::unique_ptr<CameraMetadata> staticMetadata_; std::map<unsigned int, std::unique_ptr<CameraMetadata>> requestTemplates_; const camera3_callback_ops_t *callbacks_; std::vector<Camera3StreamConfiguration> streamConfigurations_; std::map<int, libcamera::PixelFormat> formatsMap_; std::vector<CameraStream> streams_; std::string maker_; std::string model_; int facing_; int orientation_; unsigned int maxJpegBufferSize_; CameraMetadata lastSettings_; }; #endif /* __ANDROID_CAMERA_DEVICE_H__ */