1 files changed, 133 insertions, 0 deletions
diff --git a/Source/Core/AudioCommon/OpenSLESStream.cpp b/Source/Core/AudioCommon/OpenSLESStream.cpp
new file mode 100644
index 0000000000..67e77a4d86
--- /dev/null
+++ b/Source/Core/AudioCommon/OpenSLESStream.cpp
@@ -0,0 +1,133 @@
+// Copyright 2013 Dolphin Emulator Project
+// Licensed under GPLv2
+// Refer to the license.txt file included.
+
+#ifdef ANDROID
+#include "Common.h"
+#include <assert.h>
+#include "OpenSLESStream.h"
+
+#include <SLES/OpenSLES.h>
+#include <SLES/OpenSLES_Android.h>
+
+// engine interfaces
+static SLObjectItf engineObject;
+static SLEngineItf engineEngine;
+static SLObjectItf outputMixObject;
+
+// buffer queue player interfaces
+static SLObjectItf bqPlayerObject = NULL;
+static SLPlayItf bqPlayerPlay;
+static SLAndroidSimpleBufferQueueItf bqPlayerBufferQueue;
+static SLMuteSoloItf bqPlayerMuteSolo;
+static SLVolumeItf bqPlayerVolume;
+static CMixer *g_mixer;
+#define BUFFER_SIZE 512
+#define BUFFER_SIZE_IN_SAMPLES (BUFFER_SIZE / 2)
+
+// Double buffering.
+static short buffer[2][BUFFER_SIZE];
+static int curBuffer = 0;
+
+static void bqPlayerCallback(SLAndroidSimpleBufferQueueItf bq, void *context) {
+	assert(bq == bqPlayerBufferQueue);
+	assert(NULL == context);
+
+	short *nextBuffer = buffer[curBuffer];
+	int nextSize = sizeof(buffer[0]);
+
+	SLresult result = (*bqPlayerBufferQueue)->Enqueue(bqPlayerBufferQueue, nextBuffer, nextSize);
+
+	// Comment from sample code:
+	// the most likely other result is SL_RESULT_BUFFER_INSUFFICIENT,
+	// which for this code example would indicate a programming error
+	_assert_msg_(AUDIO, SL_RESULT_SUCCESS == result, "Couldn't enqueue audio stream.");
+
+
+	curBuffer ^= 1;	// Switch buffer
+	// Render to the fresh buffer
+	g_mixer->Mix(reinterpret_cast<short *>(buffer[curBuffer]), BUFFER_SIZE_IN_SAMPLES);
+}
+bool OpenSLESStream::Start()
+{
+	SLresult result;
+	// create engine
+	result = slCreateEngine(&engineObject, 0, NULL, 0, NULL, NULL);
+	assert(SL_RESULT_SUCCESS == result);
+	result = (*engineObject)->Realize(engineObject, SL_BOOLEAN_FALSE);
+	assert(SL_RESULT_SUCCESS == result);
+	result = (*engineObject)->GetInterface(engineObject, SL_IID_ENGINE, &engineEngine);
+	assert(SL_RESULT_SUCCESS == result);
+	result = (*engineEngine)->CreateOutputMix(engineEngine, &outputMixObject, 0, 0, 0);
+	assert(SL_RESULT_SUCCESS == result);
+	result = (*outputMixObject)->Realize(outputMixObject, SL_BOOLEAN_FALSE);
+	assert(SL_RESULT_SUCCESS == result);
+
+	SLDataLocator_AndroidSimpleBufferQueue loc_bufq = {SL_DATALOCATOR_ANDROIDSIMPLEBUFFERQUEUE, 2};
+	SLDataFormat_PCM format_pcm = {
+		SL_DATAFORMAT_PCM,
+		2,
+		SL_SAMPLINGRATE_44_1,
+		SL_PCMSAMPLEFORMAT_FIXED_16,
+		SL_PCMSAMPLEFORMAT_FIXED_16,
+		SL_SPEAKER_FRONT_LEFT | SL_SPEAKER_FRONT_RIGHT,
+		SL_BYTEORDER_LITTLEENDIAN
+	};
+
+	SLDataSource audioSrc = {&loc_bufq, &format_pcm};
+
+	// configure audio sink
+	SLDataLocator_OutputMix loc_outmix = {SL_DATALOCATOR_OUTPUTMIX, outputMixObject};
+	SLDataSink audioSnk = {&loc_outmix, NULL};
+
+	// create audio player
+	const SLInterfaceID ids[2] = {SL_IID_BUFFERQUEUE, SL_IID_VOLUME};
+	const SLboolean req[2] = {SL_BOOLEAN_TRUE, SL_BOOLEAN_TRUE};
+	result = (*engineEngine)->CreateAudioPlayer(engineEngine, &bqPlayerObject, &audioSrc, &audioSnk, 2, ids, req);
+	assert(SL_RESULT_SUCCESS == result);
+
+	result = (*bqPlayerObject)->Realize(bqPlayerObject, SL_BOOLEAN_FALSE);
+	assert(SL_RESULT_SUCCESS == result);
+	result = (*bqPlayerObject)->GetInterface(bqPlayerObject, SL_IID_PLAY, &bqPlayerPlay);
+	assert(SL_RESULT_SUCCESS == result);
+	result = (*bqPlayerObject)->GetInterface(bqPlayerObject, SL_IID_BUFFERQUEUE,
+		&bqPlayerBufferQueue);
+	assert(SL_RESULT_SUCCESS == result);
+	result = (*bqPlayerBufferQueue)->RegisterCallback(bqPlayerBufferQueue, bqPlayerCallback, NULL);
+	assert(SL_RESULT_SUCCESS == result);
+	result = (*bqPlayerPlay)->SetPlayState(bqPlayerPlay, SL_PLAYSTATE_PLAYING);
+	assert(SL_RESULT_SUCCESS == result);
+
+	// Render and enqueue a first buffer. (or should we just play the buffer empty?)
+	curBuffer = 0;
+
+	result = (*bqPlayerBufferQueue)->Enqueue(bqPlayerBufferQueue, buffer[curBuffer], sizeof(buffer[curBuffer]));
+	if (SL_RESULT_SUCCESS != result) {
+		return false;
+	}
+	curBuffer ^= 1;
+	g_mixer = m_mixer;
+	return true;
+}
+
+void OpenSLESStream::Stop()
+{
+	if (bqPlayerObject != NULL) {
+		(*bqPlayerObject)->Destroy(bqPlayerObject);
+		bqPlayerObject = NULL;
+		bqPlayerPlay = NULL;
+		bqPlayerBufferQueue = NULL;
+		bqPlayerMuteSolo = NULL;
+		bqPlayerVolume = NULL;
+	}
+	if (outputMixObject != NULL) {
+		(*outputMixObject)->Destroy(outputMixObject);
+		outputMixObject = NULL;
+	}
+	if (engineObject != NULL) {
+		(*engineObject)->Destroy(engineObject);
+		engineObject = NULL;
+		engineEngine = NULL;
+	}
+}
+#endif