Mercurial > audio-send

     1 #+title: all the steps to add a device to open-al

     2 #+author: Robert McIntyre

     3 #+email: rlm@mit.edu

     4 #+description: how to add a new device to open-al

     5 #+SETUPFILE: ../../aurellem/org/setup.org

     6 #+INCLUDE: ../../aurellem/org/level-0.org

     7 

     8 

     9 * How to add a new backend device

    10 

    11 * In Alc/backends/<your-device>.c 

    12    

    13 #+begin_src C

    14 static const ALCchar <your-device>_device[] = <your-device-name>;

    15 

    16 ALCboolean alc_<your-device>_init(BackendFuncs *func_list)

    17 void alc_<your-device>_deinit(void)

    18 

    19 static ALCboolean <your-device>_open_playback(ALCdevice *device, const ALCchar *deviceName)

    20 static void <your-device>_close_playback(ALCdevice *device)

    21 static ALCboolean <your-device>_reset_playback(ALCdevice *device)

    22 static void <your-device>_stop_playback(ALCdevice *device)

    23 #+end_src

    24 

    25 #+begin_src C

    26 void alc_<your-device>_probe(enum DevProbe type)

    27 {

    28     switch(type)

    29     {

    30         case DEVICE_PROBE:

    31             AppendDeviceList(<your-device>Device);

    32             break;

    33         case ALL_DEVICE_PROBE:

    34             AppendAllDeviceList(<your-device>Device);

    35             break;

    36         case CAPTURE_DEVICE_PROBE:

    37             break;

    38     }

    39 }

    40 #+end_src

    41 

    42 #+begin_src C

    43 static const BackendFuncs <your-device>_funcs = {

    44     <your-device>_open_playback,

    45     <your-device>_close_playback,

    46     <your-device>_reset_playback,

    47     <your-device>_stop_playback,

    48     NULL,

    49     NULL,

    50     NULL,

    51     NULL,

    52     NULL,

    53     NULL

    54 };

    55 #+end_src

    56 

    57 

    58 * In OpenAL32/Include/alMain.h :

    59 

    60 #+begin_src C

    61 ALCboolean alc_<your-device>_init(BackendFuncs *func_list);

    62 void alc_<your-device>_deinit(void);

    63 void alc_<your-device>_probe(enum DevProbe type);

    64 

    65 #+end_src

    66   

    67 * In Alc/ALc.c :

    68  #+begin_src C

    69      { "<your-device>", alc_<your-device>_init, 

    70 	 alc_<your-device>_deinit, alc_<your-device>_probe, EmptyFuncs },

    71 

    72  #+end_src

    73 

    74 * In CMakeLists.txt

    75 #+begin_src cmake

    76 SET(ALC_OBJS  Alc/ALc.c

    77               Alc/ALu.c

    78               Alc/alcConfig.c

    79               Alc/alcDedicated.c

    80               Alc/alcEcho.c

    81               Alc/alcModulator.c

    82               Alc/alcReverb.c

    83               Alc/alcRing.c

    84               Alc/alcThread.c

    85               Alc/bs2b.c

    86               Alc/helpers.c

    87               Alc/hrtf.c

    88               Alc/mixer.c

    89               Alc/panning.c

    90               # Default backends, always available

    91               Alc/backends/loopback.c

    92               Alc/backends/null.c

    93 	      # : add <your-device> device

    94 	      Alc/backends/<your-device>.c

    95 )

    96 #+end_src

    97 

    98 

    99 * In ~/.alsoftrc

   100 

   101 #+begin_src conf

   102 drivers = <your-device>

   103 #+end_src
author	Robert McIntyre <rlm@mit.edu>
date	Thu, 27 Oct 2011 02:40:54 -0700
parents	f9476ff7637e
children	3caceef436ea