Loopp/src/trackoutput.cxx

106 lines
2.3 KiB
C++

#include "trackoutput.hxx"
// valgrind no access code
//#include <valgrind/memcheck.h>
//VALGRIND_MAKE_MEM_NOACCESS( &_trackBuffer[0] , MAX_BUFFER_SIZE );
TrackOutput::TrackOutput(int t, AudioProcessor* ap) :
AudioProcessor(),
track(t),
previousInChain(ap),
dbMeter(44100)
{
//printf("trackOutput ID: %i, ap = ", track );
//std::cout << ap << std::endl;
// UI update
uiUpdateConstant = 44100 / 30;
uiUpdateCounter = 44100 / 30;
_toReverb = 0.0;
_toMaster = 0.8;
_toSidechain = 0.0;
_toPostSidechain = 0.0;
}
void TrackOutput::setMaster(float value)
{
_toMaster = value;
}
float TrackOutput::getMaster()
{
return _toMaster;
}
void TrackOutput::setSend( int send, float value )
{
switch( send )
{
case SEND_REV:
_toReverb = value;
break;
case SEND_SIDE:
_toSidechain = value;
break;
case SEND_POST:
_toPostSidechain = value;
break;
}
}
void TrackOutput::process(unsigned int nframes, Buffers* buffers)
{
// get & zero track buffer
float* trackBuffer = buffers->audio[Buffers::TRACK_0 + track];
memset( trackBuffer, 0, nframes );
// call process() up the chain
previousInChain->process( nframes, buffers );
// run the meter
dbMeter.process( nframes, trackBuffer, trackBuffer );
if (uiUpdateCounter > uiUpdateConstant )
{
// FIXME: should be using ControllerUpdater
EventTrackSignalLevel e( track, dbMeter.getLeftDB() * _toMaster, dbMeter.getRightDB() * _toMaster );
writeToGuiRingbuffer( &e );
uiUpdateCounter = 0;
}
uiUpdateCounter += nframes;
// copy audio data into reverb / sidechain / master buffers
float* reverb = buffers->audio[Buffers::REVERB];
float* sidechain = buffers->audio[Buffers::SIDECHAIN];
float* postSidechain = buffers->audio[Buffers::POST_SIDECHAIN];
float* masterL = buffers->audio[Buffers::MASTER_OUT_L];
float* masterR = buffers->audio[Buffers::MASTER_OUT_R];
for(unsigned int i = 0; i < nframes; i++)
{
float tmp = trackBuffer[i];
masterL[i] += tmp * _toMaster;
masterR[i] += tmp * _toMaster;
masterL++;
masterR++;
*reverb++ += tmp * _toReverb;
*sidechain++ += tmp * _toSidechain;
*postSidechain++ += tmp * _toPostSidechain;
}
}
TrackOutput::~TrackOutput()
{
}