server/scsynth/SC_AU.cpp

   1 /*
   2         AudioUnits driver interface.
   3         Copyright (c) 2006-2008 Gerard Roma.
   4
   5         ====================================================================
   6
   7         SuperCollider real time audio synthesis system
   8         Copyright (c) 2002 James McCartney. All rights reserved.
   9         http://www.audiosynth.com
  10
  11         This program is free software; you can redistribute it and/or modify
  12         it under the terms of the GNU General Public License as published by
  13         the Free Software Foundation; either version 2 of the License, or
  14         (at your option) any later version.
  15
  16         This program is distributed in the hope that it will be useful,
  17         but WITHOUT ANY WARRANTY; without even the implied warranty of
  18         MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19         GNU General Public License for more details.
  20
  21         You should have received a copy of the GNU General Public License
  22         along with this program; if not, write to the Free Software
  23         Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301  USA
  24 */
  25 #if SC_AUDIO_API == SC_AUDIO_API_AUDIOUNITS
  26 #include "SC_AU.h"
  27
  28
  29 void AUCallback(SC_AUAudioDriver *driver,AudioBufferList* in, AudioBufferList* out, AudioTimeStamp* inTimeStamp, UInt32 inFramesToProcess, Float64 sampleRate, int64 oscTime){
  30                 driver->Callback(in, out, inTimeStamp, inFramesToProcess, sampleRate, oscTime);
  31 }
  32
  33 void sc_SetDenormalFlags();
  34
  35 SC_AudioDriver* SC_NewAudioDriver(struct World *inWorld)
  36 {
  37     return new SC_AUAudioDriver(inWorld);
  38 }
  39
  40 SC_AUAudioDriver::SC_AUAudioDriver(struct World *inWorld): SC_CoreAudioDriver(inWorld){}
  41
  42 SC_AUAudioDriver::~SC_AUAudioDriver(){}
  43
  44
  45 bool SC_AUAudioDriver::DriverSetup(int* outNumSamples, double* outSampleRate)
  46 {
  47     // params are set into the wolrd options at AU initialize
  48         if(!mPreferredSampleRate && !mPreferredHardwareBufferFrameSize) return false;
  49         *outSampleRate = mPreferredSampleRate;
  50         *outNumSamples = mPreferredHardwareBufferFrameSize;
  51     return true;
  52 }
  53
  54 bool SC_AUAudioDriver::DriverStart()
  55 {
  56     return true;
  57 }
  58
  59 bool SC_AUAudioDriver::DriverStop()
  60 {
  61     return true;
  62 }
  63
  64
  65 void SC_AUAudioDriver::Callback(const AudioBufferList* in, AudioBufferList* out, AudioTimeStamp* inTimeStamp, UInt32 inFramesToProcess, Float64 sampleRate, int64 oscTime){
  66     this->mNumSamplesPerCallback = inFramesToProcess;
  67         this->mOSCincrement = (int64)(this->mOSCincrementNumerator / sampleRate);
  68     this->Run(in, out, oscTime);
  69 }
  70 #endif