package/gentoo/media-libs

/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
 * Copyright (C) 2019, Google Inc.
 *
 * camera_hal_manager.h - libcamera Android Camera Manager
 */
#ifndef __ANDROID_CAMERA_MANAGER_H__
#define __ANDROID_CAMERA_MANAGER_H__

#include <map>
#include <mutex>
#include <stddef.h>
#include <tuple>
#include <vector>

#include <hardware/camera_common.h>
#include <hardware/hardware.h>
#include <system/camera_metadata.h>

#include <libcamera/base/class.h>

#include <libcamera/camera_manager.h>

#include "camera_hal_config.h"

class CameraDevice;

class CameraHalManager
{
public:
	~CameraHalManager();

	static CameraHalManager *instance();

	int init();

	std::tuple<CameraDevice *, int>
	open(unsigned int id, const hw_module_t *module);

	unsigned int numCameras() const;
	int getCameraInfo(unsigned int id, struct camera_info *info);
	void setCallbacks(const camera_module_callbacks_t *callbacks);

private:
	LIBCAMERA_DISABLE_COPY_AND_MOVE(CameraHalManager)

	using Mutex = std::mutex;
	using MutexLocker = std::unique_lock<std::mutex>;

	static constexpr unsigned int firstExternalCameraId_ = 1000;

	CameraHalManager();

	static int32_t cameraLocation(const libcamera::Camera *cam);

	void cameraAdded(std::shared_ptr<libcamera::Camera> cam);