static void SNDSDLUpdateAudio(u32 *leftchanbuffer, u32 *rightchanbuffer, u32 num_samples)
{
u32 copy1size=0, copy2size=0;
SDL_LockAudio();
if ((soundbufsize - soundoffset) < (num_samples * sizeof(s16) * 2))
{
copy1size = (soundbufsize - soundoffset);
copy2size = (num_samples * sizeof(s16) * 2) - copy1size;
}
else
{
copy1size = (num_samples * sizeof(s16) * 2);
copy2size = 0;
}
sdlConvert32uto16s((s32 *)leftchanbuffer, (s32 *)rightchanbuffer, (s16 *)(((u8 *)stereodata16)+soundoffset), copy1size / sizeof(s16) / 2);
if (copy2size)
sdlConvert32uto16s((s32 *)leftchanbuffer + (copy1size / sizeof(s16) / 2), (s32 *)rightchanbuffer + (copy1size / sizeof(s16) / 2), (s16 *)stereodata16, copy2size / sizeof(s16) / 2);
soundoffset += copy1size + copy2size;
soundoffset %= soundbufsize;
SDL_UnlockAudio();
}
static void SNDAudioTrackUpdateAudio(u32 *leftchanbuffer, u32 *rightchanbuffer, u32 num_samples)
{
u32 copy1size=0;
copy1size = (num_samples * sizeof(s16) * 2);
sdlConvert32uto16s((s32 *)leftchanbuffer, (s32 *)rightchanbuffer, (s16 *)(((u8 *)stereodata16)+soundoffset), copy1size / sizeof(s16) / 2);
soundoffset += copy1size;
if (soundoffset > mbufferSizeInBytes) {
if (! muted) {
JNIEnv * env;
jbyteArray array;
if ((*yvm)->GetEnv(yvm, (void**) &env, JNI_VERSION_1_6) != JNI_OK)
return;
array = (*env)->NewByteArray(env, soundoffset);
if(array) {
(*env)->SetByteArrayRegion(env, array, 0, soundoffset, (u8 *) stereodata16);
}
(*env)->CallNonvirtualIntMethod(env, gtrack, cAudioTrack, mWrite, array, 0, soundoffset);
}
soundoffset = 0;
}
}
static void SNDOpenSLUpdateAudio(u32 *leftchanbuffer, u32 *rightchanbuffer, u32 num_samples)
{
// return;
u32 copy1size=0;
int nextpos;
copy1size = (num_samples * sizeof(s16) * 2);
//printf("SNDOpenSLUpdateAudio %08X,%08X,%08X",currentpos,soundoffset[currentpos],copy1size);
sdlConvert32uto16s((s32 *)leftchanbuffer, (s32 *)rightchanbuffer, (s16 *)(((u8 *)stereodata16[currentpos])+soundoffset[currentpos] ), copy1size / sizeof(s16) / 2);
soundoffset[currentpos] += copy1size;
if (soundoffset[currentpos] >= mbufferSizeInBytes) {
if (!muted) {
// here we only enqueue one buffer because it is a long clip,
// but for streaming playback we would typically enqueue at least 2 buffers to start
SLresult result;
push_index(currentpos);
result = (*bqPlayerBufferQueue)->Enqueue(bqPlayerBufferQueue, stereodata16[currentpos], soundoffset[currentpos]);
if (SL_RESULT_SUCCESS != result) {
printf("Fail to Add queue");
return;
}
}
nextpos = currentpos+1;
if( nextpos >= MAX_BUFFER_CNT ) { nextpos = 0; }
currentpos = nextpos;
}
}
static void SNDLIBRETROUpdateAudio(u32 *leftchanbuffer, u32 *rightchanbuffer, u32 num_samples)
{
s16 sound_buf[4096];
sdlConvert32uto16s((int32_t*)leftchanbuffer, (int32_t*)rightchanbuffer, sound_buf, num_samples);
audio_batch_cb(sound_buf, num_samples);
audio_size -= num_samples;
}
