initial commit, 4.5 stable

platform/android/audio_driver_opensl.h

@@ -0,0 +1,108 @@
+/**************************************************************************/
+/*  audio_driver_opensl.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 "servers/audio_server.h"
+
+#include <SLES/OpenSLES.h>
+#include <SLES/OpenSLES_Android.h>
+
+class AudioDriverOpenSL : public AudioDriver {
+	bool active = false;
+	Mutex mutex;
+
+	enum {
+		BUFFER_COUNT = 2
+	};
+
+	bool pause = false;
+
+	uint32_t buffer_size = 0;
+	int16_t *buffers[BUFFER_COUNT] = {};
+	int32_t *mixdown_buffer = nullptr;
+	int last_free = 0;
+
+	Vector<int16_t> rec_buffer;
+
+	SLPlayItf playItf = nullptr;
+	SLRecordItf recordItf = nullptr;
+	SLObjectItf sl = nullptr;
+	SLEngineItf EngineItf = nullptr;
+	SLObjectItf OutputMix = nullptr;
+	SLObjectItf player = nullptr;
+	SLObjectItf recorder = nullptr;
+	SLAndroidSimpleBufferQueueItf bufferQueueItf = nullptr;
+	SLAndroidSimpleBufferQueueItf recordBufferQueueItf = nullptr;
+	SLDataSource audioSource;
+	SLDataFormat_PCM pcm;
+	SLDataSink audioSink;
+	SLDataLocator_OutputMix locator_outputmix;
+
+	static AudioDriverOpenSL *s_ad;
+
+	void _buffer_callback(
+			SLAndroidSimpleBufferQueueItf queueItf);
+
+	static void _buffer_callbacks(
+			SLAndroidSimpleBufferQueueItf queueItf,
+			void *pContext);
+
+	void _record_buffer_callback(
+			SLAndroidSimpleBufferQueueItf queueItf);
+
+	static void _record_buffer_callbacks(
+			SLAndroidSimpleBufferQueueItf queueItf,
+			void *pContext);
+
+	Error init_input_device();
+
+public:
+	virtual const char *get_name() const override {
+		return "Android";
+	}
+
+	virtual Error init() override;
+	virtual void start() override;
+	virtual int get_mix_rate() const override;
+	virtual SpeakerMode get_speaker_mode() const override;
+
+	virtual void lock() override;
+	virtual void unlock() override;
+	virtual void finish() override;
+
+	virtual Error input_start() override;
+	virtual Error input_stop() override;
+
+	void set_pause(bool p_pause);
+
+	AudioDriverOpenSL();
+};