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- /*
- ZynAddSubFX - a software synthesizer
-
- PAaudiooutput.C - Audio output for PortAudio
- Copyright (C) 2002 Nasca Octavian Paul
- Author: Nasca Octavian Paul
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of version 2 of the GNU General Public License
- as published by the Free Software Foundation.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License (version 2) for more details.
-
- You should have received a copy of the GNU General Public License (version 2)
- along with this program; if not, write to the Free Software Foundation,
- Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-
- */
-
- #include "PAaudiooutput.h"
-
- Master *PAmaster;
- PaStream *stream;
- REALTYPE *outl,*outr;
-
- int PAprocess(void *inputBuffer,void *outputBuffer,
- unsigned long framesPerBuffer,
- PaTimestamp outTime,void *userData){
-
- if (framesPerBuffer!=SOUND_BUFFER_SIZE) {
- fprintf(stderr,"Bug: PAudioOutput::PAprocess SOUND_BUFFER_SIZE!=framesPerBuffer");
- fprintf(stderr,"%d %d\n",framesPerBuffer,SOUND_BUFFER_SIZE);
- };
-
- pthread_mutex_lock(&PAmaster->mutex);
- PAmaster->GetAudioOutSamples(SOUND_BUFFER_SIZE,SAMPLE_RATE,outl,outr);
- pthread_mutex_unlock(&PAmaster->mutex);
-
- float *out=(float *)outputBuffer;
-
- for (int i=0;i<framesPerBuffer;i++){
- if (i>=SOUND_BUFFER_SIZE) break;//this should never happens, except only when framesPerBuffer!>SOUND_BUFFER_SIZE
- out[i*2]=outl[i];
- out[i*2+1]=outr[i];
- };
-
- return(0);
- };
-
- void PAaudiooutputinit(Master *master_){
- PAmaster=master_;
- outl=new REALTYPE [SOUND_BUFFER_SIZE];
- outr=new REALTYPE [SOUND_BUFFER_SIZE];
- Pa_Initialize();
- Pa_OpenDefaultStream(&stream,0,2,paFloat32,SAMPLE_RATE,SOUND_BUFFER_SIZE,0,PAprocess,NULL);
- Pa_StartStream(stream);
- };
-
- void PAfinish(){
- Pa_StopStream(stream);
- delete (outl);
- delete (outr);
- };
-
-
-
-
-