int AudioMixer::process(UInt32 numInputChannels, float* inputBuffer, UInt32 numOutputChannels, float *outputBuffer, UInt32 numFrames)
{
mLock.lock();
int z = 0;
memset(outputBuffer, 0, sizeof(float) * numFrames * numOutputChannels);
for(UInt32 i = 0; i < mSounds.size(); ++i)
{
UNTZ::Sound *s = mSounds[i];
if(s->getData()->getState() == kPlayStatePlaying)
{
++z;
Int64 totalFramesRead = 0;
Int64 framesRead = 0;
do
{
framesRead = s->getData()->getSource()->readFrames((float*)&mBuffer[0], numOutputChannels, numFrames - totalFramesRead, s->getData()->mState);
if(framesRead > 0)
{
for(UInt32 k = 0; k < numOutputChannels; ++k)
{
float *out = &outputBuffer[k*numFrames + totalFramesRead];
float *in = &mBuffer[k*framesRead + totalFramesRead];
for(UInt32 j = 0; j < framesRead; j++)
*(out++) += *(in++) * s->getData()->mVolume;
}
totalFramesRead += framesRead;
}
}
while(framesRead > 0 && totalFramesRead < numFrames);
if(framesRead == 0)
{
s->stop();
}
}
}
RPRINT("processed %d sources\n", z);
mLock.unlock();
// volume & clipping
// commented out in HBS contrib
//for(UInt32 k = 0; k < numOutputChannels * numFrames; ++k)
//{
// float val = *outputBuffer * mVolume;;
// val = val > 1.0 ? 1.0 : val;
// val = val < -1.0 ? -1.0 : val;
// *(outputBuffer)++ = val;
//}
return 0;
}
int AudioMixer::process(UInt32 numInputChannels, float* inputBuffer, UInt32 numOutputChannels, float *outputBuffer, UInt32 numFrames)
{
mLock.lock();
memset(outputBuffer, 0, sizeof(float) * numFrames * numOutputChannels);
for(UInt32 i = 0; i < mSounds.size(); ++i)
{
UNTZ::Sound *s = mSounds[i];
if(s->getData()->getState() == kPlayStatePlaying)
{
Int64 totalFramesRead = 0;
Int64 framesRead = 0;
do
{
framesRead = s->getData()->getSource()->readFrames((float*)&mBuffer[0], numOutputChannels, numFrames - totalFramesRead);
if(framesRead > 0)
{
for(UInt32 k = 0; k < numOutputChannels; ++k)
{
float *out = &outputBuffer[k*numFrames + totalFramesRead];
float *in = &mBuffer[k*numFrames + totalFramesRead];
for(UInt32 j = 0; j < framesRead; j++)
*(out++) += *(in++) * s->getData()->mVolume;
}
totalFramesRead += framesRead;
}
}
while(totalFramesRead > 0 &&
totalFramesRead < numFrames &&
framesRead >= 0);
if(framesRead < 0)
{
mLock.unlock();
s->stop();
mLock.lock();
}
}
}
mLock.unlock();
return 0;
}