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Version 4.3.0

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This commit is contained in:
Gary Scavone
2009-03-24 23:02:15 -04:00
committed by Stephen Sinclair
parent 2cbce2d8bd
commit 27d9b79dc7
271 changed files with 22219 additions and 8834 deletions
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33
projects/examples/grains.cpp
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@@ -8,12 +8,13 @@
// This tick() function handles sample computation only. It will be
// called automatically when the system needs a new buffer of audio
// samples.
int tick(char *buffer, int bufferSize, void *dataPointer)
int tick( void *outputBuffer, void *inputBuffer, unsigned int nBufferFrames,
double streamTime, RtAudioStreamStatus status, void *dataPointer )
{
Granulate *grani = (Granulate *) dataPointer;
register StkFloat *samples = (StkFloat *) buffer;
register StkFloat *samples = (StkFloat *) outputBuffer;
for ( int i=0; i<bufferSize; i++ )
for ( unsigned int i=0; i<nBufferFrames; i++ )
*samples++ = grani->tick();
return 0;
@@ -49,7 +50,7 @@ int main( int argc, char *argv[] )
// Set the global sample rate before creating class instances.
Stk::setSampleRate( 44100.0 );
RtAudio *dac = 0;
RtAudio dac;
Granulate grani;
grani.setRandomFactor( random );
grani.setStretch( stretch );
@@ -63,22 +64,24 @@ int main( int argc, char *argv[] )
}
grani.setVoices( N );
// Figure out how many bytes in an StkFloat and setup the RtAudio object.
// Figure out how many bytes in an StkFloat and setup the RtAudio stream.
RtAudio::StreamParameters parameters;
parameters.deviceId = dac.getDefaultOutputDevice();
parameters.nChannels = 1;
RtAudioFormat format = ( sizeof(StkFloat) == 8 ) ? RTAUDIO_FLOAT64 : RTAUDIO_FLOAT32;
int bufferSize = RT_BUFFER_SIZE;
unsigned int bufferFrames = RT_BUFFER_SIZE;
try {
dac = new RtAudio(0, 1, 0, 0, format, (int)Stk::sampleRate(), &bufferSize, 4);
dac.openStream( &parameters, NULL, format, (unsigned int)Stk::sampleRate(), &bufferFrames, &tick, (void *)&grani );
}
catch (RtError& error) {
catch ( RtError &error ) {
error.printMessage();
goto cleanup;
}
try {
dac->setStreamCallback(&tick, (void *)&grani);
dac->startStream();
dac.startStream();
}
catch (RtError &error) {
catch ( RtError &error ) {
error.printMessage();
goto cleanup;
}
@@ -87,19 +90,17 @@ int main( int argc, char *argv[] )
// Block waiting here.
char keyhit;
std::cout << "\nPlaying ... press <enter> to quit.\n";
std::cin.get(keyhit);
std::cin.get( keyhit );
// Shut down the callback and output stream.
try {
dac->cancelStreamCallback();
dac->closeStream();
dac.closeStream();
}
catch (RtError &error) {
catch ( RtError &error ) {
error.printMessage();
}
cleanup:
delete dac;
return 0;
}