dolphin/Source/Plugins/Plugin_DSP_HLE/Src/PCHW/AOSoundStream.cpp

130 lines
3.1 KiB
C++

#include <ao/ao.h>
#include <pthread.h>
#include "AOSoundStream.h"
namespace AOSound
{
pthread_t thread;
StreamCallback callback;
char *buffer;
int buf_size;
ao_device *device;
ao_sample_format format;
int default_driver;
int bufferSize;
int totalRenderedBytes;
int sampleRate;
volatile int threadData;
int currentPos;
int lastPos;
short realtimeBuffer[1024 * 1024];
int AOSound_GetSampleRate()
{
return sampleRate;
}
bool WriteDataToBuffer(int dwOffset, char* soundData, uint_32 numSoundBytes)
{
//void* ptr1, * ptr2;
//DWORD numBytes1, numBytes2;
// Obtain memory address of write block. This will be in two parts if the block wraps around.
//HRESULT hr = dsBuffer->Lock(dwOffset, dwSoundBytes, &ptr1, &numBytes1, &ptr2, &numBytes2, 0);
// If the buffer was lost, restore and retry lock.
/*if (DSERR_BUFFERLOST == hr)
{
dsBuffer->Restore();
hr = dsBuffer->Lock(dwOffset, dwSoundBytes, &ptr1, &numBytes1, &ptr2, &numBytes2, 0);
}
if (SUCCEEDED(hr))
{
memcpy(ptr1, soundData, numBytes1);
if (ptr2 != 0)
{
memcpy(ptr2, soundData + numBytes1, numBytes2);
}
// Release the data back to DirectSound.
dsBuffer->Unlock(ptr1, numBytes1, ptr2, numBytes2);
return(true);
}
return(false);*/
//if(soundData[0] != 0)
if(device)
ao_play(device, soundData, numSoundBytes);
return true;
}
void* soundThread(void*)
{
currentPos = 0;
lastPos = 0;
// Prefill buffer?
//writeDataToBuffer(0,realtimeBuffer,bufferSize);
// dsBuffer->Lock(0, bufferSize, (void **)&p1, &num1, (void **)&p2, &num2, 0);
//dsBuffer->Play(0, 0, DSBPLAY_LOOPING);
while (!threadData)
{
// No blocking inside the csection
//dsBuffer->GetCurrentPosition((DWORD*)&currentPos, 0);
uint_32 numBytesToRender = 256;
if (numBytesToRender >= 256)
{
(*callback)(realtimeBuffer, numBytesToRender >> 2, 16, 44100, 2);
WriteDataToBuffer(0, (char*)realtimeBuffer, numBytesToRender);
//currentPos = ModBufferSize(lastPos + numBytesToRender);
//totalRenderedBytes += numBytesToRender;
//lastPos = currentPos;
}
//WaitForSingleObject(soundSyncEvent, MAXWAIT);
}
//dsBuffer->Stop();
return(0); //hurra!
}
bool AOSound_StartSound(int _sampleRate, StreamCallback _callback)
{
callback = _callback;
threadData = 0;
sampleRate = _sampleRate;
//no security attributes, automatic resetting, init state nonset, untitled
//soundSyncEvent = CreateEvent(0, false, false, 0);
ao_initialize();
default_driver = ao_default_driver_id();
format.bits = 16;
format.channels = 2;
format.rate = sampleRate;
format.byte_format = AO_FMT_LITTLE;
//vi vill ha access till DSOUND så...
device = ao_open_live(default_driver, &format, NULL /* no options */);
if (device == NULL) {
fprintf(stderr, "Error opening device.\n");
return false;
}
buf_size = format.bits/8 * format.channels * format.rate;
buffer = (char*)calloc(buf_size, sizeof(char));
pthread_create(&thread, NULL, soundThread, (void *)NULL);
return(true);
}
void AOSound_StopSound()
{
ao_close(device);
ao_shutdown();
free(buffer);
}
}