OSStatus AKSampler_Plugin::Render(AudioUnitRenderActionFlags &ioActionFlags, const AudioTimeStamp &inTimeStamp, UInt32 nFrames)
{
AUOutputElement* outputBus = GetOutput(0);
outputBus->PrepareBuffer(nFrames); // prepare the output buffer list
AudioBufferList& outputBufList = outputBus->GetBufferList();
AUBufferList::ZeroBuffer(outputBufList);
float* outBuffers[2];
outBuffers[0] = (float*)(outputBufList.mBuffers[0].mData);
outBuffers[1] = (float*)(outputBufList.mBuffers[1].mData);
// process in chunks of maximum length CHUNKSIZE
for (int frameIndex = 0; frameIndex < nFrames; frameIndex += CHUNKSIZE) {
int chunkSize = nFrames - frameIndex;
if (chunkSize > CHUNKSIZE) chunkSize = CHUNKSIZE;
// Any ramping parameters would be updated here...
unsigned channelCount = outputBufList.mNumberBuffers;
AKCoreSampler::render(channelCount, chunkSize, outBuffers);
outBuffers[0] += CHUNKSIZE;
outBuffers[1] += CHUNKSIZE;
}
return noErr;
}
OSStatus SonogramViewDemo::Render( AudioUnitRenderActionFlags &ioActionFlags,
const AudioTimeStamp & inTimeStamp,
UInt32 inFramesToProcess )
{
UInt32 actionFlags = 0;
OSStatus err = PullInput(0, actionFlags, inTimeStamp, inFramesToProcess);
if (err) return err;
AUInputElement* inputBus = GetInput(0);
AUOutputElement* outputBus = GetOutput(0);
outputBus->PrepareBuffer(inFramesToProcess); // prepare the output buffer list
AudioBufferList& inputBufList = inputBus->GetBufferList();
if (
mSpectralProcessor->ProcessForwards(inFramesToProcess, &inputBufList)
){
AudioBufferList* sdBufferList = &mSpectralDataBufferList->GetModifiableBufferList();
mSpectralProcessor->GetMagnitude(sdBufferList, mMinAmp, mMaxAmp);
// copy mNumBins of numbers out
SampleTime s = (SampleTime) (mRenderStamp.mSampleTime);
mSpectrumBuffer->Store(sdBufferList, 1, s);
mRenderStamp.mSampleTime += 1;
}
return AUEffectBase::Render(ioActionFlags, inTimeStamp, inFramesToProcess);
}
ComponentResult SooperLooperAU::Render( AudioUnitRenderActionFlags &ioActionFlags,
const AudioTimeStamp & inTimeStamp,
UInt32 nFrames)
{
// save the timestamp
_curr_stamp = inTimeStamp;
if (_last_rendered_frames != nFrames) {
_last_rendered_frames = nFrames;
ConnectionsChanged(); // emit
}
// if we're bypassed we need to passthru the other buses
if (ShouldBypassEffect())
{
for (size_t n=1; n < SL_MAXLOOPS; ++n)
{
try {
AUOutputElement *theOutput = GetOutput(n); // throws if error
AUInputElement *theInput = GetInput(n);
if (theOutput && theInput) {
OSStatus result = theInput->PullInput(ioActionFlags, _curr_stamp, 0 /* element */, nFrames);
if (result == noErr) {
if(ProcessesInPlace() )
{
theOutput->SetBufferList(theInput->GetBufferList() );
}
else {
theOutput->PrepareBuffer(nFrames);
}
// leave silence bit alone
if(!ProcessesInPlace() )
{
theInput->CopyBufferContentsTo (theOutput->GetBufferList());
}
}
}
} catch (...) {
//cerr << "got exception: " << endl;
}
}
}
return AUMIDIEffectBase::Render (ioActionFlags, inTimeStamp, nFrames);
}
OSStatus MT32Synth::Render(AudioUnitRenderActionFlags &ioActionFlags, const AudioTimeStamp &inTimeStamp, UInt32 inNumberFrames) {
if(!synth) {
return noErr;
}
AUOutputElement* outputBus = GetOutput(0);
outputBus->PrepareBuffer(inNumberFrames);
AudioBufferList& outputBufList = outputBus->GetBufferList();
AUBufferList::ZeroBuffer(outputBufList);
UInt32 ioOutputDataPackets = inNumberFrames * destFormat.mFramesPerPacket;
AudioConverterFillComplexBuffer(audioConverterRef, EncoderDataProc, (void*) this, &ioOutputDataPackets, &outputBufList, NULL);
return noErr;
}
OSStatus AUPinkNoise::Render( AudioUnitRenderActionFlags &ioActionFlags,
const AudioTimeStamp & inTimeStamp,
UInt32 nFrames)
{
AUOutputElement* outputBus = GetOutput(0);
outputBus->PrepareBuffer(nFrames); // prepare the output buffer list
AudioBufferList& outputBufList = outputBus->GetBufferList();
AUBufferList::ZeroBuffer(outputBufList);
// only render if the on parameter is true. Otherwise send the zeroed buffer
if (Globals()->GetParameter(kParam_On))
{
for (UInt32 i=0; i < outputBufList.mNumberBuffers; i++)
mPink->Render((Float32*)outputBufList.mBuffers[i].mData, nFrames, Globals()->GetParameter(kParam_Volume));
}
return noErr;
}
OSStatus SooperLooperAU::ProcessBufferLists(
AudioUnitRenderActionFlags & ioActionFlags,
const AudioBufferList & inBuffer,
AudioBufferList & outBuffer,
UInt32 inFramesToProcess )
{
// deinterleaved
//const AudioBuffer *srcBuffer = inBuffer.mBuffers;
//AudioBuffer *destBuffer = outBuffer.mBuffers;
if (inBuffer.mNumberBuffers == 1) {
if (_chancnt > 1) {
//cerr << "interleaved " << _chancnt << endl;
ioActionFlags |= kAudioUnitRenderAction_OutputIsSilence;
return kAudioUnitErr_InvalidParameter;
}
}
_in_buflist[0] = (AudioBufferList *) &inBuffer;
_out_buflist[0] = &outBuffer;
//cerr << "main bus: " << _out_buflist[0] << " count: " << outBuffer.mNumberBuffers << endl;
// this is called with the main bus (0) buffers
// we really should subclass Render here, but instead
// we'll just get the other busses data too
for (size_t n=1; n < SL_MAXLOOPS; ++n)
{
try {
AUOutputElement *theOutput = GetOutput(n); // throws if error
AUInputElement *theInput = GetInput(n);
if (theOutput && theInput) {
OSStatus result = theInput->PullInput(ioActionFlags, _curr_stamp, 0 /* element */, inFramesToProcess);
if (result == noErr) {
if(ProcessesInPlace() )
{
theOutput->SetBufferList(theInput->GetBufferList() );
}
else {
theOutput->PrepareBuffer(inFramesToProcess);
}
_in_buflist[n] = &theInput->GetBufferList();
}
else {
// no input, just do output
theOutput->PrepareBuffer(inFramesToProcess);
}
if (n > _engine->loop_count()) {
// zero the buffer
AUBufferList::ZeroBuffer(theOutput->GetBufferList());
} else if (_engine->get_loop_channel_count(n-1, true) == 1) {
// for the sidechain outputs that are mono, set the 2nd channel to be == to the first
//theOutput->SetBuffer(1, theOutput->GetBufferList().mBuffers[0]);
}
_out_buflist[n] = &theOutput->GetBufferList();
//cerr << "got bus output: " << n << " " << _out_buflist[n] << " count: " << theOutput->GetBufferList().mNumberBuffers << endl;
}
else {
//cerr << "don't have both in and out for: " << n << endl;
}
} catch (...) {
//cerr << "got exception: with bus " << n << endl;
}
}
// actually do the work
_engine->process (inFramesToProcess);
_in_buflist[0] = 0;
_out_buflist[0] = 0;
for (size_t n=1; n <= _engine->loop_count() && n < SL_MAXLOOPS; ++n) {
if (_engine->get_loop_channel_count(n-1, true) == 1) {
memcpy(_out_buflist[n]->mBuffers[1].mData, _out_buflist[n]->mBuffers[0].mData, sizeof(float) * inFramesToProcess);
}
_in_buflist[n] = 0;
_out_buflist[n] = 0;
}
// force output to be something
ioActionFlags &= ~kAudioUnitRenderAction_OutputIsSilence;
return noErr;
}