initial commit, 4.5 stable

modules/camera/camera_linux.h

@@ -0,0 +1,59 @@
+/**************************************************************************/
+/*  camera_linux.h                                                        */
+/**************************************************************************/
+/*                         This file is part of:                          */
+/*                             GODOT ENGINE                               */
+/*                        https://godotengine.org                         */
+/**************************************************************************/
+/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
+/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                  */
+/*                                                                        */
+/* Permission is hereby granted, free of charge, to any person obtaining  */
+/* a copy of this software and associated documentation files (the        */
+/* "Software"), to deal in the Software without restriction, including    */
+/* without limitation the rights to use, copy, modify, merge, publish,    */
+/* distribute, sublicense, and/or sell copies of the Software, and to     */
+/* permit persons to whom the Software is furnished to do so, subject to  */
+/* the following conditions:                                              */
+/*                                                                        */
+/* The above copyright notice and this permission notice shall be         */
+/* included in all copies or substantial portions of the Software.        */
+/*                                                                        */
+/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,        */
+/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF     */
+/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
+/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY   */
+/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,   */
+/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE      */
+/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                 */
+/**************************************************************************/
+
+#pragma once
+
+#include "core/os/mutex.h"
+#include "core/os/thread.h"
+#include "servers/camera_server.h"
+
+class CameraLinux : public CameraServer {
+private:
+	SafeFlag exit_flag;
+	Thread camera_thread;
+	Mutex camera_mutex;
+
+	static void camera_thread_func(void *p_camera_linux);
+
+	void _update_devices();
+	bool _has_device(const String &p_device_name);
+	void _add_device(const String &p_device_name);
+	void _remove_device(const String &p_device_name);
+	int _open_device(const String &p_device_name);
+	bool _is_active(const String &p_device_name);
+	bool _is_video_capture_device(int p_file_descriptor);
+	bool _can_query_format(int p_file_descriptor, int p_type);
+
+public:
+	CameraLinux() = default;
+	~CameraLinux();
+
+	void set_monitoring_feeds(bool p_monitoring_feeds) override;
+};