solaris/oss/JackOSSAdapter.h

   1 /*
   2 Copyright (C) 2008 Grame & RTL 2008
   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 __JackOSSAdapter__
  21 #define __JackOSSAdapter__
  22
  23 #include <math.h>
  24 #include <limits.h>
  25 #include <assert.h>
  26 #include "JackAudioAdapterInterface.h"
  27 #include "JackPlatformPlug.h"
  28 #include "JackError.h"
  29 #include "jack.h"
  30 #include "jslist.h"
  31
  32 namespace Jack
  33 {
  34
  35 typedef jack_default_audio_sample_t jack_sample_t;
  36
  37 #define OSS_DRIVER_N_PARAMS     13
  38 #define OSS_DRIVER_DEF_DEV      "/dev/dsp"
  39 #define OSS_DRIVER_DEF_FS       48000
  40 #define OSS_DRIVER_DEF_BLKSIZE  1024
  41 #define OSS_DRIVER_DEF_NPERIODS 2
  42 #define OSS_DRIVER_DEF_BITS     16
  43 #define OSS_DRIVER_DEF_INS      2
  44 #define OSS_DRIVER_DEF_OUTS     2
  45
  46 /*!
  47 \brief The OSS adapter.
  48 */
  49
  50 class JackOSSAdapter : public JackAudioAdapterInterface, public JackRunnableInterface
  51 {
  52
  53     enum { kRead = 1, kWrite = 2, kReadWrite = 3 };
  54
  55     private:
  56
  57         JackThread fThread;
  58
  59         char fCaptureDriverName[JACK_CLIENT_NAME_SIZE + 1];
  60         char fPlaybackDriverName[JACK_CLIENT_NAME_SIZE + 1];
  61
  62         int fInFD;
  63         int fOutFD;
  64
  65         int fBits;
  66         int fSampleFormat;
  67         int fNperiods;
  68         unsigned int fSampleSize;
  69         int     fRWMode;
  70         bool fIgnoreHW;
  71         bool fExcl;
  72
  73         unsigned int fInputBufferSize;
  74         unsigned int fOutputBufferSize;
  75
  76         void* fInputBuffer;
  77         void* fOutputBuffer;
  78
  79         float** fInputSampleBuffer;
  80         float** fOutputSampleBuffer;
  81
  82         bool fFirstCycle;
  83
  84         int OpenInput();
  85         int OpenOutput();
  86         void CloseAux();
  87         void SetSampleFormat();
  88         void DisplayDeviceInfo();
  89
  90     public:
  91
  92         JackOSSAdapter(jack_nframes_t buffer_size, jack_nframes_t sample_rate, const JSList* params);
  93         ~JackOSSAdapter()
  94         {}
  95
  96         int Open();
  97         int Close();
  98
  99         int Read();
 100         int Write();
 101
 102         int SetBufferSize(jack_nframes_t buffer_size);
 103
 104         bool Execute();
 105 };
 106
 107 }
 108
 109 #ifdef __cplusplus
 110 extern "C"
 111 {
 112 #endif
 113
 114 #include "JackCompilerDeps.h"
 115 #include "driver_interface.h"
 116
 117 EXPORT jack_driver_desc_t* jack_get_descriptor();
 118
 119 #ifdef __cplusplus
 120 }
 121 #endif
 122
 123 #endif