src/android/camera_hal_manager.cpp


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

#include "camera_hal_manager.h"

#include <libcamera/camera.h>

#include "log.h"

#include "camera_device.h"
#include "camera_proxy.h"

using namespace libcamera;

LOG_DECLARE_CATEGORY(HAL);

/*
 * \class CameraHalManager
 *
 * The HAL camera manager is initializated at camera_module_t 'hal_init()' time
 * and spawns its own thread where libcamera related events are dispatched to.
 * It wraps the libcamera CameraManager operations and provides helpers for the
 * camera_module_t operations, to retrieve the number of cameras in the system,
 * their static information and to open camera devices.
 */

CameraHalManager::~CameraHalManager()
{
	if (isRunning()) {
		exit(0);
		/* \todo Wait with a timeout, just in case. */
		wait();
	}
}

int CameraHalManager::init()
{
	/*
	 * Start the camera HAL manager thread and wait until its
	 * initialisation completes to be fully operational before
	 * receiving calls from the camera stack.
	 */
	start();

	MutexLocker locker(mutex_);
	cv_.wait(locker);

	return 0;
}