1 /* 2 Copyright (C) 2004-2008 Grame 3 4 This program is free software; you can redistribute it and/or modify 5 it under the terms of the GNU General Public License as published by 6 the Free Software Foundation; either version 2 of the License, or 7 (at your option) any later version. 8 9 This program is distributed in the hope that it will be useful, 10 but WITHOUT ANY WARRANTY; without even the implied warranty of 11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 GNU General Public License for more details. 13 14 You should have received a copy of the GNU General Public License 15 along with this program; if not, write to the Free Software 16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 17 18 */ 19 20 #ifndef __JackPortAudioDriver__ 21 #define __JackPortAudioDriver__ 22 23 #include "JackAudioDriver.h" 24 #include "JackPortAudioDevices.h" 25 #include "JackMMCSS.h" 26 27 namespace Jack 28 { 29 30 /*! 31 \brief The PortAudio driver. 32 */ 33 34 class JackPortAudioDriver : public JackMMCSS, public JackAudioDriver 35 { 36 37 private: 38 39 PaStream* fStream; 40 jack_default_audio_sample_t** fInputBuffer; 41 jack_default_audio_sample_t** fOutputBuffer; 42 PaDeviceIndex fInputDevice; 43 PaDeviceIndex fOutputDevice; 44 PortAudioDevices* fPaDevices; 45 46 static int Render(const void* inputBuffer, void* outputBuffer, 47 unsigned long framesPerBuffer, 48 const PaStreamCallbackTimeInfo* timeInfo, 49 PaStreamCallbackFlags statusFlags, 50 void* userData); 51 52 PaError OpenStream(jack_nframes_t buffer_size); 53 void UpdateLatencies(); 54 int Render(const void* inputBuffer, void* outputBuffer, PaStreamCallbackFlags statusFlags); 55 56 public: 57 JackPortAudioDriver(const char * name,const char * alias,JackLockedEngine * engine,JackSynchro * table,PortAudioDevices * pa_devices)58 JackPortAudioDriver(const char* name, const char* alias, JackLockedEngine* engine, JackSynchro* table, PortAudioDevices* pa_devices) 59 : JackMMCSS(), JackAudioDriver(name, alias, engine, table), fStream(NULL), fInputBuffer(NULL), fOutputBuffer(NULL), 60 fInputDevice(paNoDevice), fOutputDevice(paNoDevice), fPaDevices(pa_devices) 61 {} 62 ~JackPortAudioDriver()63 virtual ~JackPortAudioDriver() 64 { 65 delete fPaDevices; 66 } 67 68 int Open(jack_nframes_t buffe_size, 69 jack_nframes_t samplerate, 70 bool capturing, 71 bool playing, 72 int chan_in, 73 int chan_out, 74 bool monitor, 75 const char* capture_driver_name, 76 const char* playback_driver_name, 77 jack_nframes_t capture_latency, 78 jack_nframes_t playback_latency); 79 80 int Close(); 81 82 int Attach(); 83 84 int Start(); 85 int Stop(); 86 87 int Read(); 88 int Write(); 89 90 // BufferSize can be changed IsFixedBufferSize()91 bool IsFixedBufferSize() 92 { 93 return false; 94 } 95 96 int SetBufferSize(jack_nframes_t buffer_size); 97 }; 98 99 } // end of namespace 100 101 #endif 102