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