int app_OpenSound(int samples_per_sync, int sample_rate) {
Float64 sampleRate = 44100.0;
int i;
LOGDEBUG("app_SoundOpen()");
app_MuteSound();
if(preferences.muted)
{
return 0;
}
soundInit = 0;
in.mDataFormat.mSampleRate = sampleRate;
in.mDataFormat.mFormatID = kAudioFormatLinearPCM;
in.mDataFormat.mFormatFlags = kLinearPCMFormatFlagIsSignedInteger
| kAudioFormatFlagIsPacked;
in.mDataFormat.mBytesPerPacket = 4;
in.mDataFormat.mFramesPerPacket = 1;
in.mDataFormat.mBytesPerFrame = 2;
in.mDataFormat.mChannelsPerFrame = 2;
in.mDataFormat.mBitsPerChannel = 16;
/* Pre-buffer before we turn on audio */
UInt32 err;
err = AudioQueueNewOutput(&in.mDataFormat,
AQBufferCallback,
&in,
NULL,
kCFRunLoopCommonModes,
0,
&in.queue);
if (err) {
LOGDEBUG("AudioQueueNewOutput err %d\n", err);
}
in.frameCount = 512 * 1; //512; //(1024 * (16)) / 4;
UInt32 bufferBytes = in.frameCount * in.mDataFormat.mBytesPerFrame;
for (i=0; i<AUDIO_BUFFERS; i++) {
err = AudioQueueAllocateBuffer(in.queue, bufferBytes, &in.mBuffers[i]);
if (err) {
LOGDEBUG("AudioQueueAllocateBuffer[%d] err %d\n",i, err);
}
/* "Prime" by calling the callback once per buffer */
AQBufferCallback (&in, in.queue, in.mBuffers[i]);
}
soundInit = 1;
LOGDEBUG("app_QueueSample.AudioQueueStart");
err = AudioQueueStart(in.queue, NULL);
return 0;
}
int app_OpenSound(int buffersize) {
Float64 sampleRate = 22050.0;
int i;
UInt32 bufferBytes;
soundBufferSize = buffersize;
app_MuteSound();
soundInit = 0;
in.mDataFormat.mSampleRate = sampleRate;
in.mDataFormat.mFormatID = kAudioFormatLinearPCM;
in.mDataFormat.mFormatFlags = kLinearPCMFormatFlagIsSignedInteger
| kAudioFormatFlagIsPacked;
in.mDataFormat.mBytesPerPacket = 4;
in.mDataFormat.mFramesPerPacket = isStereo ? 1 : 2;
in.mDataFormat.mBytesPerFrame = isStereo ? 4 : 2;
in.mDataFormat.mChannelsPerFrame = isStereo ? 2 : 1;
in.mDataFormat.mBitsPerChannel = 16;
/* Pre-buffer before we turn on audio */
UInt32 err;
err = AudioQueueNewOutput(&in.mDataFormat,
AQBufferCallback,
NULL,
NULL,
kCFRunLoopCommonModes,
0,
&in.queue);
bufferBytes = AUDIO_BUFFER_SIZE;
for (i=0; i<AUDIO_BUFFERS; i++)
{
err = AudioQueueAllocateBuffer(in.queue, bufferBytes, &in.mBuffers[i]);
/* "Prime" by calling the callback once per buffer */
//AQBufferCallback (&in, in.queue, in.mBuffers[i]);
in.mBuffers[i]->mAudioDataByteSize = AUDIO_BUFFER_SIZE; //samples_per_frame * 2; //inData->mDataFormat.mBytesPerFrame; //(inData->frameCount * 4 < (sndOutLen) ? inData->frameCount * 4 : (sndOutLen));
AudioQueueEnqueueBuffer(in.queue, in.mBuffers[i], 0, NULL);
}
soundInit = 1;
err = AudioQueueStart(in.queue, NULL);
return 0;
}
int app_OpenSound()
{
Float64 sampleRate = 44100.0;
int i;
UInt32 bufferBytes;
Uint32 err;
app_MuteSound();
soundInit = 0;
if(!config.enable_sound)
return 0;
in.mDataFormat.mSampleRate = sampleRate;
in.mDataFormat.mFormatID = kAudioFormatLinearPCM;
in.mDataFormat.mFormatFlags =
kLinearPCMFormatFlagIsSignedInteger | kAudioFormatFlagIsPacked;
in.mDataFormat.mBytesPerPacket = 4;
in.mDataFormat.mFramesPerPacket = 2;
in.mDataFormat.mBytesPerFrame = 2;
in.mDataFormat.mChannelsPerFrame = 1;
in.mDataFormat.mBitsPerChannel = 16;
// Pre-buffer before we turn on audio
err = AudioQueueNewOutput(&in.mDataFormat, AQBufferCallback,
NULL, NULL, CFRunLoopGetCurrent(), kCFRunLoopDefaultMode,
0, &in.queue);
bufferBytes = IPHONE_AUDIO_BUFFER_SIZE;
for(i = 0; i < IPHONE_AUDIO_BUFFERS; i++)
{
err = AudioQueueAllocateBuffer(in.queue, bufferBytes, &in.mBuffers[i]);
in.mBuffers[i]->mAudioDataByteSize = IPHONE_AUDIO_BUFFER_SIZE;
// "Prime" by calling the callback once per buffer
AudioQueueEnqueueBuffer(in.queue, in.mBuffers[i], 0, NULL);
}
soundInit = 1;
err = AudioQueueStart(in.queue, NULL);
return 0;
}
int msdos_init_sound(void)
{
/* Ask the user if no soundcard was chosen */
if (soundcard == -1)
{
soundcard=1;
}
if (soundcard == 0) /* silence */
{
/* update the Machine structure to show that sound is disabled */
Machine->sample_rate = 0;
return 0;
}
/* use stereo output if supported */
gp2x_sound_stereo=0;
if (usestereo)
{
if (Machine->drv->sound_attributes & SOUND_SUPPORTS_STEREO)
gp2x_sound_stereo=1;
}
stream_cache_data = 0;
stream_cache_len = 0;
stream_cache_stereo = 0;
gp2x_sound_rate=44100;//options.samplerate;//44100; //options.samplerate;
/* update the Machine structure to reflect the actual sample rate */
Machine->sample_rate = gp2x_sound_rate;
logerror("set stereo: %d\n",gp2x_sound_stereo);
logerror("set sample rate: %d\n",Machine->sample_rate);
osd_set_mastervolume(attenuation); /* set the startup volume */
app_MuteSound();
app_DemuteSound();
return 0;
}
void app_Halt(void) {
app_MuteSound();
__emulation_run = 0;
}
/* Mute Sound Thread*/
void gp2x_sound_thread_mute(void)
{
#ifndef NOSOUND
app_MuteSound();
#endif
}
void gp2x_stop_sound()
{
app_MuteSound();
}