src/audio/SDL_audio.c
author Ryan C. Gordon <icculus@icculus.org>
Sat, 07 Oct 2006 20:23:02 +0000
branchSDL-ryan-multiple-audio-device
changeset 3833 de857f0708f5
parent 3806 1485d42cf1a0
child 3837 7c9663fb0860
permissions -rw-r--r--
Whoops, changed that symbol name...
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
     1
/*
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
     2
    SDL - Simple DirectMedia Layer
1312
c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents: 1204
diff changeset
     3
    Copyright (C) 1997-2006 Sam Lantinga
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
     4
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
     5
    This library is free software; you can redistribute it and/or
1312
c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents: 1204
diff changeset
     6
    modify it under the terms of the GNU Lesser General Public
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
     7
    License as published by the Free Software Foundation; either
1312
c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents: 1204
diff changeset
     8
    version 2.1 of the License, or (at your option) any later version.
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
     9
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
    10
    This library is distributed in the hope that it will be useful,
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
    11
    but WITHOUT ANY WARRANTY; without even the implied warranty of
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
    12
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
1312
c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents: 1204
diff changeset
    13
    Lesser General Public License for more details.
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
    14
1312
c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents: 1204
diff changeset
    15
    You should have received a copy of the GNU Lesser General Public
c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents: 1204
diff changeset
    16
    License along with this library; if not, write to the Free Software
c9b51268668f Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents: 1204
diff changeset
    17
    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
    18
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
    19
    Sam Lantinga
252
e8157fcb3114 Updated the source with the correct e-mail address
Sam Lantinga <slouken@libsdl.org>
parents: 148
diff changeset
    20
    slouken@libsdl.org
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
    21
*/
1402
d910939febfa Use consistent identifiers for the various platforms we support.
Sam Lantinga <slouken@libsdl.org>
parents: 1379
diff changeset
    22
#include "SDL_config.h"
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
    23
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
    24
/* Allow access to a raw mixing buffer */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
    25
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
    26
#include "SDL.h"
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
    27
#include "SDL_audio_c.h"
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
    28
#include "SDL_audiomem.h"
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
    29
#include "SDL_sysaudio.h"
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
    30
3796
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
    31
#define _THIS	SDL_AudioDevice *this
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
    32
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
    33
static SDL_AudioDriver current_audio;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
    34
static SDL_AudioDevice *open_devices[16];
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
    35
3796
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
    36
/* !!! FIXME: These are wordy and unlocalized... */
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
    37
#define DEFAULT_OUTPUT_DEVNAME "System audio output device"
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
    38
#define DEFAULT_INPUT_DEVNAME "System audio capture device"
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
    39
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
    40
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
    41
/*
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
    42
 * Not all of these will be compiled and linked in, but it's convenient
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
    43
 *  to have a complete list here and saves yet-another block of #ifdefs...
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
    44
 *  Please see bootstrap[], below, for the actual #ifdef mess.
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
    45
 */
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
    46
extern AudioBootStrap BSD_AUDIO_bootstrap;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
    47
extern AudioBootStrap DSP_bootstrap;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
    48
extern AudioBootStrap DMA_bootstrap;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
    49
extern AudioBootStrap ALSA_bootstrap;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
    50
extern AudioBootStrap QNXNTOAUDIO_bootstrap;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
    51
extern AudioBootStrap SUNAUDIO_bootstrap;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
    52
extern AudioBootStrap DMEDIA_bootstrap;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
    53
extern AudioBootStrap ARTS_bootstrap;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
    54
extern AudioBootStrap ESD_bootstrap;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
    55
extern AudioBootStrap NAS_bootstrap;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
    56
extern AudioBootStrap DSOUND_bootstrap;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
    57
extern AudioBootStrap WAVEOUT_bootstrap;
3833
de857f0708f5 Whoops, changed that symbol name...
Ryan C. Gordon <icculus@icculus.org>
parents: 3806
diff changeset
    58
extern AudioBootStrap PAUDIO_bootstrap;
3796
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
    59
extern AudioBootStrap BAUDIO_bootstrap;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
    60
extern AudioBootStrap COREAUDIO_bootstrap;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
    61
extern AudioBootStrap SNDMGR_bootstrap;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
    62
extern AudioBootStrap MINTAUDIO_GSXB_bootstrap;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
    63
extern AudioBootStrap MINTAUDIO_MCSN_bootstrap;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
    64
extern AudioBootStrap MINTAUDIO_STFA_bootstrap;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
    65
extern AudioBootStrap MINTAUDIO_XBIOS_bootstrap;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
    66
extern AudioBootStrap MINTAUDIO_DMA8_bootstrap;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
    67
extern AudioBootStrap DISKAUD_bootstrap;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
    68
extern AudioBootStrap DUMMYAUD_bootstrap;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
    69
extern AudioBootStrap DCAUD_bootstrap;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
    70
extern AudioBootStrap MMEAUDIO_bootstrap;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
    71
extern AudioBootStrap DART_bootstrap;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
    72
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
    73
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
    74
/* Available audio drivers */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
    75
static AudioBootStrap *bootstrap[] = {
1567
12b6d331d82a Good idea, renaming OpenBSD audio to BSD audio.
Sam Lantinga <slouken@libsdl.org>
parents: 1562
diff changeset
    76
#if SDL_AUDIO_DRIVER_BSD
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
    77
    &BSD_AUDIO_bootstrap,
94
ae6e6b73333f Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents: 68
diff changeset
    78
#endif
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
    79
#if SDL_AUDIO_DRIVER_OSS
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
    80
    &DSP_bootstrap,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
    81
    &DMA_bootstrap,
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
    82
#endif
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
    83
#if SDL_AUDIO_DRIVER_ALSA
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
    84
    &ALSA_bootstrap,
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
    85
#endif
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
    86
#if SDL_AUDIO_DRIVER_QNXNTO
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
    87
    &QNXNTOAUDIO_bootstrap,
663
8bedd6d61642 Date: Sat, 2 Aug 2003 16:22:51 +0300
Sam Lantinga <slouken@libsdl.org>
parents: 654
diff changeset
    88
#endif
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
    89
#if SDL_AUDIO_DRIVER_SUNAUDIO
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
    90
    &SUNAUDIO_bootstrap,
148
8758b8d42cd9 Audio subsystem no longer assumes sun audio API on UNIX systems
Sam Lantinga <slouken@libsdl.org>
parents: 121
diff changeset
    91
#endif
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
    92
#if SDL_AUDIO_DRIVER_DMEDIA
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
    93
    &DMEDIA_bootstrap,
35
d3bc792e136d Added detection of Open Sound System on Solaris x86
Sam Lantinga <slouken@lokigames.com>
parents: 21
diff changeset
    94
#endif
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
    95
#if SDL_AUDIO_DRIVER_ARTS
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
    96
    &ARTS_bootstrap,
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
    97
#endif
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
    98
#if SDL_AUDIO_DRIVER_ESD
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
    99
    &ESD_bootstrap,
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   100
#endif
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
   101
#if SDL_AUDIO_DRIVER_NAS
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   102
    &NAS_bootstrap,
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   103
#endif
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
   104
#if SDL_AUDIO_DRIVER_DSOUND
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   105
    &DSOUND_bootstrap,
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   106
#endif
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
   107
#if SDL_AUDIO_DRIVER_WAVEOUT
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   108
    &WAVEOUT_bootstrap,
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   109
#endif
3833
de857f0708f5 Whoops, changed that symbol name...
Ryan C. Gordon <icculus@icculus.org>
parents: 3806
diff changeset
   110
#if SDL_AUDIO_DRIVER_PAUDIO
de857f0708f5 Whoops, changed that symbol name...
Ryan C. Gordon <icculus@icculus.org>
parents: 3806
diff changeset
   111
    &PAUDIO_bootstrap,
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
   112
#endif
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
   113
#if SDL_AUDIO_DRIVER_BAUDIO
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   114
    &BAUDIO_bootstrap,
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   115
#endif
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
   116
#if SDL_AUDIO_DRIVER_COREAUDIO
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   117
    &COREAUDIO_bootstrap,
935
f8d5ddc7aef1 Audio improvements from Max Horn, including a new CoreAudio driver for MacOSX
Sam Lantinga <slouken@libsdl.org>
parents: 808
diff changeset
   118
#endif
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
   119
#if SDL_AUDIO_DRIVER_SNDMGR
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   120
    &SNDMGR_bootstrap,
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   121
#endif
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
   122
#if SDL_AUDIO_DRIVER_MINT
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   123
    &MINTAUDIO_GSXB_bootstrap,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   124
    &MINTAUDIO_MCSN_bootstrap,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   125
    &MINTAUDIO_STFA_bootstrap,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   126
    &MINTAUDIO_XBIOS_bootstrap,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   127
    &MINTAUDIO_DMA8_bootstrap,
398
d219b0e02f5f Added Atari audio support (thanks Patrice!)
Sam Lantinga <slouken@libsdl.org>
parents: 322
diff changeset
   128
#endif
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
   129
#if SDL_AUDIO_DRIVER_DISK
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   130
    &DISKAUD_bootstrap,
68
ac6645260d31 Added an audio driver that writes to disk (thanks Ryan!)
Sam Lantinga <slouken@lokigames.com>
parents: 38
diff changeset
   131
#endif
1532
30f189cdd82b Implemented dummy audio driver.
Ryan C. Gordon <icculus@icculus.org>
parents: 1487
diff changeset
   132
#if SDL_AUDIO_DRIVER_DUMMY
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   133
    &DUMMYAUD_bootstrap,
1532
30f189cdd82b Implemented dummy audio driver.
Ryan C. Gordon <icculus@icculus.org>
parents: 1487
diff changeset
   134
#endif
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
   135
#if SDL_AUDIO_DRIVER_DC
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   136
    &DCAUD_bootstrap,
509
dad72daf44b3 Added initial support for Dreamcast (thanks HERO!)
Sam Lantinga <slouken@libsdl.org>
parents: 398
diff changeset
   137
#endif
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
   138
#if SDL_AUDIO_DRIVER_MMEAUDIO
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   139
    &MMEAUDIO_bootstrap,
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
   140
#endif
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
   141
#if SDL_AUDIO_DRIVER_DART
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   142
    &DART_bootstrap,
1190
173c063d4f55 OS/2 port!
Ryan C. Gordon <icculus@icculus.org>
parents: 955
diff changeset
   143
#endif
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   144
    NULL
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   145
};
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   146
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   147
static SDL_AudioDevice *get_audio_device(SDL_AudioDeviceID id)
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   148
{
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   149
    id--;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   150
    if ( (id >= SDL_arraysize(open_devices)) || (open_devices[id] == NULL) ) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   151
        SDL_SetError("Invalid audio device ID");
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   152
        return NULL;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   153
    }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   154
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   155
    return open_devices[id];
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   156
}
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   157
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   158
3795
589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents: 3792
diff changeset
   159
/* stubs for audio drivers that don't need a specific entry point... */
3796
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   160
static int SDL_AudioDetectDevices_Default(int iscapture) { return -1; }
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   161
static void SDL_AudioThreadInit_Default(_THIS) { /* no-op. */ }
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   162
static void SDL_AudioWaitDevice_Default(_THIS) { /* no-op. */ }
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   163
static void SDL_AudioPlayDevice_Default(_THIS) { /* no-op. */ }
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   164
static Uint8 *SDL_AudioGetDeviceBuf_Default(_THIS) { return NULL; }
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   165
static void SDL_AudioWaitDone_Default(_THIS) { /* no-op. */ }
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   166
static void SDL_AudioCloseDevice_Default(_THIS) { /* no-op. */ }
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   167
static void SDL_AudioDeinitialize_Default(void) { /* no-op. */ }
3795
589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents: 3792
diff changeset
   168
3796
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   169
static int
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   170
SDL_AudioOpenDevice_Default(_THIS, const char *devname, int iscapture)
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   171
{
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   172
    return 0;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   173
}
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   174
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   175
static const char *SDL_AudioGetDeviceName_Default(int index, int iscapture)
3795
589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents: 3792
diff changeset
   176
{
3796
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   177
    SDL_SetError("No such device");
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   178
    return NULL;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   179
}
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   180
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   181
static void
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   182
SDL_AudioLockDevice_Default(SDL_AudioDevice * device)
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   183
{
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   184
    if (device->thread && (SDL_ThreadID() == device->threadid)) {
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   185
        return;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   186
    }
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   187
    SDL_mutexP(device->mixer_lock);
3795
589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents: 3792
diff changeset
   188
}
589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents: 3792
diff changeset
   189
3796
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   190
static void
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   191
SDL_AudioUnlockDevice_Default(SDL_AudioDevice * device)
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   192
{
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   193
    if (device->thread && (SDL_ThreadID() == device->threadid)) {
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   194
        return;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   195
    }
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   196
    SDL_mutexV(device->mixer_lock);
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   197
}
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   198
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   199
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   200
static void finalize_audio_entry_points(void)
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   201
{
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   202
    /*
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   203
     * Fill in stub functions for unused driver entry points. This lets us
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   204
     *  blindly call them without having to check for validity first.
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   205
     */
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   206
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   207
    #define FILL_STUB(x) \
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   208
        if (current_audio.impl.x == NULL) { \
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   209
            current_audio.impl.x = SDL_Audio##x##_Default; \
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   210
        }
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   211
    FILL_STUB(DetectDevices);
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   212
    FILL_STUB(GetDeviceName);
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   213
    FILL_STUB(OpenDevice);
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   214
    FILL_STUB(ThreadInit);
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   215
    FILL_STUB(WaitDevice);
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   216
    FILL_STUB(PlayDevice);
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   217
    FILL_STUB(GetDeviceBuf);
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   218
    FILL_STUB(WaitDone);
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   219
    FILL_STUB(CloseDevice);
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   220
    FILL_STUB(LockDevice);
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   221
    FILL_STUB(UnlockDevice);
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   222
    FILL_STUB(Deinitialize);
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   223
    #undef FILL_STUB
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   224
}
3795
589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents: 3792
diff changeset
   225
589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents: 3792
diff changeset
   226
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   227
/* The general mixing thread function */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   228
int SDLCALL
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   229
SDL_RunAudio(void *devicep)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   230
{
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   231
    SDL_AudioDevice *device = (SDL_AudioDevice *) devicep;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   232
    const int legacy_device = (device == open_devices[0]);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   233
    Uint8 *stream;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   234
    int stream_len;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   235
    void *udata;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   236
    void (SDLCALL * fill) (void *userdata, Uint8 * stream, int len);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   237
    int silence;
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   238
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   239
    /* Perform any thread setup */
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   240
    device->threadid = SDL_ThreadID();
3796
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   241
    current_audio.impl.ThreadInit(device);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   242
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   243
    /* Set up the mixing function */
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   244
    fill = device->spec.callback;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   245
    udata = device->spec.userdata;
21
75a95f82bc1f Updated the Amiga OS port of SDL (thanks Gabriele)
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
   246
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   247
    if (device->convert.needed) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   248
        if (device->convert.src_format == AUDIO_U8) {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   249
            silence = 0x80;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   250
        } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   251
            silence = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   252
        }
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   253
        stream_len = device->convert.len;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   254
    } else {
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   255
        silence = device->spec.silence;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   256
        stream_len = device->spec.size;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   257
    }
1561
c724c4a99759 Try to fill the hardware audio buffer immediately.
Ryan C. Gordon <icculus@icculus.org>
parents: 1532
diff changeset
   258
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   259
    /* Loop, filling the audio buffers */
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   260
    while (device->enabled) {
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   261
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   262
        /* Fill the current buffer with sound */
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   263
        if (device->convert.needed) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   264
            if (device->convert.buf) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   265
                stream = device->convert.buf;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   266
            } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   267
                continue;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   268
            }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   269
        } else {
3792
866c310e2cb5 Changed some 1.3 audio symbol names.
Ryan C. Gordon <icculus@icculus.org>
parents: 3790
diff changeset
   270
            stream = current_audio.impl.GetDeviceBuf(device);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   271
            if (stream == NULL) {
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   272
                stream = device->fake_stream;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   273
            }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   274
        }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   275
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   276
        /* New code should fill buffer or set it to silence themselves. */
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   277
        if (legacy_device) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   278
            SDL_memset(stream, silence, stream_len);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   279
        }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   280
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   281
        if (!device->paused) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   282
            SDL_mutexP(device->mixer_lock);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   283
            (*fill) (udata, stream, stream_len);
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   284
            SDL_mutexV(device->mixer_lock);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   285
        }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   286
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   287
        /* Convert the audio if necessary */
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   288
        if (device->convert.needed) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   289
            SDL_ConvertAudio(&device->convert);
3792
866c310e2cb5 Changed some 1.3 audio symbol names.
Ryan C. Gordon <icculus@icculus.org>
parents: 3790
diff changeset
   290
            stream = current_audio.impl.GetDeviceBuf(device);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   291
            if (stream == NULL) {
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   292
                stream = device->fake_stream;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   293
            }
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   294
            SDL_memcpy(stream, device->convert.buf, device->convert.len_cvt);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   295
        }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   296
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   297
        /* Ready current buffer for play and change current buffer */
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   298
        if (stream != device->fake_stream) {
3792
866c310e2cb5 Changed some 1.3 audio symbol names.
Ryan C. Gordon <icculus@icculus.org>
parents: 3790
diff changeset
   299
            current_audio.impl.PlayDevice(device);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   300
        }
1562
1d487a3fab41 Fixed bug #18
Sam Lantinga <slouken@libsdl.org>
parents: 1561
diff changeset
   301
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   302
        /* Wait for an audio buffer to become available */
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   303
        if (stream == device->fake_stream) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   304
            SDL_Delay((device->spec.samples * 1000) / device->spec.freq);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   305
        } else {
3792
866c310e2cb5 Changed some 1.3 audio symbol names.
Ryan C. Gordon <icculus@icculus.org>
parents: 3790
diff changeset
   306
            current_audio.impl.WaitDevice(device);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   307
        }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   308
    }
1562
1d487a3fab41 Fixed bug #18
Sam Lantinga <slouken@libsdl.org>
parents: 1561
diff changeset
   309
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   310
    /* Wait for the audio to drain.. */
3796
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   311
    current_audio.impl.WaitDone(device);
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   312
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   313
    return (0);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   314
}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   315
322
fd93a09655e3 The audio lock and unlock functions are now a part of the driver.
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
   316
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1978
diff changeset
   317
static SDL_AudioFormat
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   318
SDL_ParseAudioFormat(const char *string)
1794
5605a9820134 Fixed bug #137
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
   319
{
3781
3a64f57eb3cf Simplified SDL_ParseAudioFormat() and added support for int32/float32 types.
Ryan C. Gordon <icculus@icculus.org>
parents: 2045
diff changeset
   320
    #define CHECK_FMT_STRING(x) if (strcmp(string, #x) == 0) return AUDIO_##x
3a64f57eb3cf Simplified SDL_ParseAudioFormat() and added support for int32/float32 types.
Ryan C. Gordon <icculus@icculus.org>
parents: 2045
diff changeset
   321
    CHECK_FMT_STRING(U8);
3a64f57eb3cf Simplified SDL_ParseAudioFormat() and added support for int32/float32 types.
Ryan C. Gordon <icculus@icculus.org>
parents: 2045
diff changeset
   322
    CHECK_FMT_STRING(S8);
3a64f57eb3cf Simplified SDL_ParseAudioFormat() and added support for int32/float32 types.
Ryan C. Gordon <icculus@icculus.org>
parents: 2045
diff changeset
   323
    CHECK_FMT_STRING(U16LSB);
3a64f57eb3cf Simplified SDL_ParseAudioFormat() and added support for int32/float32 types.
Ryan C. Gordon <icculus@icculus.org>
parents: 2045
diff changeset
   324
    CHECK_FMT_STRING(S16LSB);
3a64f57eb3cf Simplified SDL_ParseAudioFormat() and added support for int32/float32 types.
Ryan C. Gordon <icculus@icculus.org>
parents: 2045
diff changeset
   325
    CHECK_FMT_STRING(U16MSB);
3a64f57eb3cf Simplified SDL_ParseAudioFormat() and added support for int32/float32 types.
Ryan C. Gordon <icculus@icculus.org>
parents: 2045
diff changeset
   326
    CHECK_FMT_STRING(S16MSB);
3a64f57eb3cf Simplified SDL_ParseAudioFormat() and added support for int32/float32 types.
Ryan C. Gordon <icculus@icculus.org>
parents: 2045
diff changeset
   327
    CHECK_FMT_STRING(U16SYS);
3a64f57eb3cf Simplified SDL_ParseAudioFormat() and added support for int32/float32 types.
Ryan C. Gordon <icculus@icculus.org>
parents: 2045
diff changeset
   328
    CHECK_FMT_STRING(S16SYS);
3a64f57eb3cf Simplified SDL_ParseAudioFormat() and added support for int32/float32 types.
Ryan C. Gordon <icculus@icculus.org>
parents: 2045
diff changeset
   329
    CHECK_FMT_STRING(U16);
3a64f57eb3cf Simplified SDL_ParseAudioFormat() and added support for int32/float32 types.
Ryan C. Gordon <icculus@icculus.org>
parents: 2045
diff changeset
   330
    CHECK_FMT_STRING(S16);
3a64f57eb3cf Simplified SDL_ParseAudioFormat() and added support for int32/float32 types.
Ryan C. Gordon <icculus@icculus.org>
parents: 2045
diff changeset
   331
    CHECK_FMT_STRING(S32LSB);
3a64f57eb3cf Simplified SDL_ParseAudioFormat() and added support for int32/float32 types.
Ryan C. Gordon <icculus@icculus.org>
parents: 2045
diff changeset
   332
    CHECK_FMT_STRING(S32MSB);
3a64f57eb3cf Simplified SDL_ParseAudioFormat() and added support for int32/float32 types.
Ryan C. Gordon <icculus@icculus.org>
parents: 2045
diff changeset
   333
    CHECK_FMT_STRING(S32SYS);
3a64f57eb3cf Simplified SDL_ParseAudioFormat() and added support for int32/float32 types.
Ryan C. Gordon <icculus@icculus.org>
parents: 2045
diff changeset
   334
    CHECK_FMT_STRING(S32);
3a64f57eb3cf Simplified SDL_ParseAudioFormat() and added support for int32/float32 types.
Ryan C. Gordon <icculus@icculus.org>
parents: 2045
diff changeset
   335
    CHECK_FMT_STRING(F32LSB);
3a64f57eb3cf Simplified SDL_ParseAudioFormat() and added support for int32/float32 types.
Ryan C. Gordon <icculus@icculus.org>
parents: 2045
diff changeset
   336
    CHECK_FMT_STRING(F32MSB);
3a64f57eb3cf Simplified SDL_ParseAudioFormat() and added support for int32/float32 types.
Ryan C. Gordon <icculus@icculus.org>
parents: 2045
diff changeset
   337
    CHECK_FMT_STRING(F32SYS);
3a64f57eb3cf Simplified SDL_ParseAudioFormat() and added support for int32/float32 types.
Ryan C. Gordon <icculus@icculus.org>
parents: 2045
diff changeset
   338
    CHECK_FMT_STRING(F32);
3a64f57eb3cf Simplified SDL_ParseAudioFormat() and added support for int32/float32 types.
Ryan C. Gordon <icculus@icculus.org>
parents: 2045
diff changeset
   339
    #undef CHECK_FMT_STRING
3a64f57eb3cf Simplified SDL_ParseAudioFormat() and added support for int32/float32 types.
Ryan C. Gordon <icculus@icculus.org>
parents: 2045
diff changeset
   340
    return 0;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   341
}
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   342
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   343
int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   344
SDL_GetNumAudioDrivers(void)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   345
{
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   346
    return (SDL_arraysize(bootstrap) - 1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   347
}
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   348
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   349
const char *
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   350
SDL_GetAudioDriver(int index)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   351
{
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   352
    if (index >= 0 && index < SDL_GetNumAudioDrivers()) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   353
        return (bootstrap[index]->name);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   354
    }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   355
    return (NULL);
1794
5605a9820134 Fixed bug #137
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
   356
}
5605a9820134 Fixed bug #137
Sam Lantinga <slouken@libsdl.org>
parents: 1769
diff changeset
   357
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   358
int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   359
SDL_AudioInit(const char *driver_name)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   360
{
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   361
    int i = 0;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   362
    int initialized = 0;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   363
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   364
    if (SDL_WasInit(SDL_INIT_AUDIO)) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   365
        SDL_AudioQuit();  /* shutdown driver if already running. */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   366
    }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   367
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   368
    SDL_memset(&current_audio, '\0', sizeof (current_audio));
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   369
    SDL_memset(open_devices, '\0', sizeof (open_devices));
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   370
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   371
    /* Select the proper audio driver */
1909
8f1ab2f7c722 Look at environment variables in SDL_VideoInit() and SDL_AudioInit()
Sam Lantinga <slouken@libsdl.org>
parents: 1903
diff changeset
   372
    if (driver_name == NULL) {
8f1ab2f7c722 Look at environment variables in SDL_VideoInit() and SDL_AudioInit()
Sam Lantinga <slouken@libsdl.org>
parents: 1903
diff changeset
   373
        driver_name = SDL_getenv("SDL_AUDIODRIVER");
8f1ab2f7c722 Look at environment variables in SDL_VideoInit() and SDL_AudioInit()
Sam Lantinga <slouken@libsdl.org>
parents: 1903
diff changeset
   374
    }
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   375
3804
b12b7ec0dfcc Removed an if (), which lets this code section be a little less cluttered...
Ryan C. Gordon <icculus@icculus.org>
parents: 3803
diff changeset
   376
    if (driver_name != NULL) {
b12b7ec0dfcc Removed an if (), which lets this code section be a little less cluttered...
Ryan C. Gordon <icculus@icculus.org>
parents: 3803
diff changeset
   377
        for (i = 0; bootstrap[i]; ++i) {
b12b7ec0dfcc Removed an if (), which lets this code section be a little less cluttered...
Ryan C. Gordon <icculus@icculus.org>
parents: 3803
diff changeset
   378
            if (SDL_strcasecmp(bootstrap[i]->name, driver_name) == 0) {
b12b7ec0dfcc Removed an if (), which lets this code section be a little less cluttered...
Ryan C. Gordon <icculus@icculus.org>
parents: 3803
diff changeset
   379
                if (bootstrap[i]->available()) {
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   380
                    SDL_memset(&current_audio, 0, sizeof (current_audio));
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   381
                    current_audio.name = bootstrap[i]->name;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   382
                    current_audio.desc = bootstrap[i]->desc;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   383
                    initialized = bootstrap[i]->init(&current_audio.impl);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   384
                }
3804
b12b7ec0dfcc Removed an if (), which lets this code section be a little less cluttered...
Ryan C. Gordon <icculus@icculus.org>
parents: 3803
diff changeset
   385
                break;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   386
            }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   387
        }
3804
b12b7ec0dfcc Removed an if (), which lets this code section be a little less cluttered...
Ryan C. Gordon <icculus@icculus.org>
parents: 3803
diff changeset
   388
    } else {
b12b7ec0dfcc Removed an if (), which lets this code section be a little less cluttered...
Ryan C. Gordon <icculus@icculus.org>
parents: 3803
diff changeset
   389
        for (i = 0; (!initialized) && (bootstrap[i]); ++i) {
b12b7ec0dfcc Removed an if (), which lets this code section be a little less cluttered...
Ryan C. Gordon <icculus@icculus.org>
parents: 3803
diff changeset
   390
            if ((!bootstrap[i]->demand_only) && (bootstrap[i]->available())) {
b12b7ec0dfcc Removed an if (), which lets this code section be a little less cluttered...
Ryan C. Gordon <icculus@icculus.org>
parents: 3803
diff changeset
   391
                SDL_memset(&current_audio, 0, sizeof (current_audio));
b12b7ec0dfcc Removed an if (), which lets this code section be a little less cluttered...
Ryan C. Gordon <icculus@icculus.org>
parents: 3803
diff changeset
   392
                current_audio.name = bootstrap[i]->name;
b12b7ec0dfcc Removed an if (), which lets this code section be a little less cluttered...
Ryan C. Gordon <icculus@icculus.org>
parents: 3803
diff changeset
   393
                current_audio.desc = bootstrap[i]->desc;
b12b7ec0dfcc Removed an if (), which lets this code section be a little less cluttered...
Ryan C. Gordon <icculus@icculus.org>
parents: 3803
diff changeset
   394
                initialized = bootstrap[i]->init(&current_audio.impl);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   395
            }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   396
        }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   397
    }
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   398
3804
b12b7ec0dfcc Removed an if (), which lets this code section be a little less cluttered...
Ryan C. Gordon <icculus@icculus.org>
parents: 3803
diff changeset
   399
    if (!initialized) {
b12b7ec0dfcc Removed an if (), which lets this code section be a little less cluttered...
Ryan C. Gordon <icculus@icculus.org>
parents: 3803
diff changeset
   400
        if (driver_name) {
b12b7ec0dfcc Removed an if (), which lets this code section be a little less cluttered...
Ryan C. Gordon <icculus@icculus.org>
parents: 3803
diff changeset
   401
            SDL_SetError("%s not available", driver_name);
b12b7ec0dfcc Removed an if (), which lets this code section be a little less cluttered...
Ryan C. Gordon <icculus@icculus.org>
parents: 3803
diff changeset
   402
        } else {
b12b7ec0dfcc Removed an if (), which lets this code section be a little less cluttered...
Ryan C. Gordon <icculus@icculus.org>
parents: 3803
diff changeset
   403
            SDL_SetError("No available audio device");
b12b7ec0dfcc Removed an if (), which lets this code section be a little less cluttered...
Ryan C. Gordon <icculus@icculus.org>
parents: 3803
diff changeset
   404
        }
b12b7ec0dfcc Removed an if (), which lets this code section be a little less cluttered...
Ryan C. Gordon <icculus@icculus.org>
parents: 3803
diff changeset
   405
        SDL_memset(&current_audio, 0, sizeof (current_audio));
b12b7ec0dfcc Removed an if (), which lets this code section be a little less cluttered...
Ryan C. Gordon <icculus@icculus.org>
parents: 3803
diff changeset
   406
        return (-1);  /* No driver was available, so fail. */
b12b7ec0dfcc Removed an if (), which lets this code section be a little less cluttered...
Ryan C. Gordon <icculus@icculus.org>
parents: 3803
diff changeset
   407
    }
b12b7ec0dfcc Removed an if (), which lets this code section be a little less cluttered...
Ryan C. Gordon <icculus@icculus.org>
parents: 3803
diff changeset
   408
3796
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   409
    finalize_audio_entry_points();
3795
589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents: 3792
diff changeset
   410
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   411
    return (0);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   412
}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   413
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   414
/*
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   415
 * Get the current audio driver name
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   416
 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   417
const char *
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   418
SDL_GetCurrentAudioDriver()
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   419
{
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   420
    return current_audio.name;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   421
}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   422
3790
8f8209f8da6d Added audio device enumeration for 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents: 3788
diff changeset
   423
8f8209f8da6d Added audio device enumeration for 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents: 3788
diff changeset
   424
int
8f8209f8da6d Added audio device enumeration for 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents: 3788
diff changeset
   425
SDL_GetNumAudioDevices(int iscapture)
8f8209f8da6d Added audio device enumeration for 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents: 3788
diff changeset
   426
{
3796
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   427
    if (!SDL_WasInit(SDL_INIT_AUDIO)) {
3790
8f8209f8da6d Added audio device enumeration for 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents: 3788
diff changeset
   428
        return -1;
8f8209f8da6d Added audio device enumeration for 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents: 3788
diff changeset
   429
    }
3796
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   430
    if ((iscapture) && (!current_audio.impl.HasCaptureSupport)) {
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   431
        return 0;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   432
    }
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   433
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   434
    if ((iscapture) && (current_audio.impl.OnlyHasDefaultInputDevice)) {
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   435
        return 1;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   436
    }
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   437
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   438
    if ((!iscapture) && (current_audio.impl.OnlyHasDefaultOutputDevice)) {
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   439
        return 1;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   440
    }
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   441
3790
8f8209f8da6d Added audio device enumeration for 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents: 3788
diff changeset
   442
    return current_audio.impl.DetectDevices(iscapture);
8f8209f8da6d Added audio device enumeration for 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents: 3788
diff changeset
   443
}
8f8209f8da6d Added audio device enumeration for 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents: 3788
diff changeset
   444
8f8209f8da6d Added audio device enumeration for 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents: 3788
diff changeset
   445
8f8209f8da6d Added audio device enumeration for 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents: 3788
diff changeset
   446
const char *
3792
866c310e2cb5 Changed some 1.3 audio symbol names.
Ryan C. Gordon <icculus@icculus.org>
parents: 3790
diff changeset
   447
SDL_GetAudioDeviceName(int index, int iscapture)
3790
8f8209f8da6d Added audio device enumeration for 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents: 3788
diff changeset
   448
{
8f8209f8da6d Added audio device enumeration for 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents: 3788
diff changeset
   449
    if (!SDL_WasInit(SDL_INIT_AUDIO)) {
8f8209f8da6d Added audio device enumeration for 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents: 3788
diff changeset
   450
        SDL_SetError("Audio subsystem is not initialized");
8f8209f8da6d Added audio device enumeration for 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents: 3788
diff changeset
   451
        return NULL;
8f8209f8da6d Added audio device enumeration for 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents: 3788
diff changeset
   452
    }
8f8209f8da6d Added audio device enumeration for 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents: 3788
diff changeset
   453
3796
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   454
    if ((iscapture) && (!current_audio.impl.HasCaptureSupport)) {
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   455
        SDL_SetError("No capture support");
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   456
        return NULL;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   457
    }
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   458
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   459
    if (index < 0) {
3790
8f8209f8da6d Added audio device enumeration for 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents: 3788
diff changeset
   460
        SDL_SetError("No such device");
8f8209f8da6d Added audio device enumeration for 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents: 3788
diff changeset
   461
        return NULL;
8f8209f8da6d Added audio device enumeration for 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents: 3788
diff changeset
   462
    }
8f8209f8da6d Added audio device enumeration for 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents: 3788
diff changeset
   463
3796
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   464
    if ((iscapture) && (current_audio.impl.OnlyHasDefaultInputDevice)) {
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   465
        return DEFAULT_INPUT_DEVNAME;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   466
    }
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   467
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   468
    if ((!iscapture) && (current_audio.impl.OnlyHasDefaultOutputDevice)) {
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   469
        return DEFAULT_OUTPUT_DEVNAME;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   470
    }
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   471
3792
866c310e2cb5 Changed some 1.3 audio symbol names.
Ryan C. Gordon <icculus@icculus.org>
parents: 3790
diff changeset
   472
    return current_audio.impl.GetDeviceName(index, iscapture);
3790
8f8209f8da6d Added audio device enumeration for 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents: 3788
diff changeset
   473
}
8f8209f8da6d Added audio device enumeration for 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents: 3788
diff changeset
   474
8f8209f8da6d Added audio device enumeration for 1.3.
Ryan C. Gordon <icculus@icculus.org>
parents: 3788
diff changeset
   475
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   476
static void
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   477
close_audio_device(SDL_AudioDevice *device)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   478
{
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   479
    device->enabled = 0;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   480
    if (device->thread != NULL) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   481
        SDL_WaitThread(device->thread, NULL);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   482
    }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   483
    if (device->mixer_lock != NULL) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   484
        SDL_DestroyMutex(device->mixer_lock);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   485
    }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   486
    if (device->fake_stream != NULL) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   487
        SDL_FreeAudioMem(device->fake_stream);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   488
    }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   489
    if (device->convert.needed) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   490
        SDL_FreeAudioMem(device->convert.buf);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   491
    }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   492
    if (device->opened) {
3792
866c310e2cb5 Changed some 1.3 audio symbol names.
Ryan C. Gordon <icculus@icculus.org>
parents: 3790
diff changeset
   493
        current_audio.impl.CloseDevice(device);
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   494
        device->opened = 0;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   495
    }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   496
    SDL_FreeAudioMem(device);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   497
}
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   498
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   499
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   500
/*
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   501
 * Sanity check desired AudioSpec for SDL_OpenAudio() in (orig).
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   502
 *  Fills in a sanitized copy in (prepared).
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   503
 *  Returns non-zero if okay, zero on fatal parameters in (orig).
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   504
 */
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   505
static int
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   506
prepare_audiospec(const SDL_AudioSpec *orig, SDL_AudioSpec *prepared)
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   507
{
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   508
    SDL_memcpy(prepared, orig, sizeof (SDL_AudioSpec));
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   509
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   510
    if (orig->callback == NULL) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   511
        SDL_SetError("SDL_OpenAudio() passed a NULL callback");
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   512
        return 0;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   513
    }
262
ba5363e21df8 Don't allow multiple audio opens to succeed (until SDL 1.3)
Sam Lantinga <slouken@libsdl.org>
parents: 252
diff changeset
   514
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   515
    if (orig->freq == 0) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   516
        const char *env = SDL_getenv("SDL_AUDIO_FREQUENCY");
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   517
        if ( (!env) || ((prepared->freq = SDL_atoi(env)) == 0) ) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   518
            prepared->freq = 22050;  /* a reasonable default */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   519
        }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   520
    }
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   521
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   522
    if (orig->format == 0) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   523
        const char *env = SDL_getenv("SDL_AUDIO_FORMAT");
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   524
        if ((!env) || ((prepared->format = SDL_ParseAudioFormat(env)) == 0)) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   525
            prepared->format = AUDIO_S16;  /* a reasonable default */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   526
        }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   527
    }
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   528
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   529
    switch (orig->channels) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   530
    case 0: {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   531
        const char *env = SDL_getenv("SDL_AUDIO_CHANNELS");
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   532
        if ( (!env) || ((prepared->channels = SDL_atoi(env)) == 0) ) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   533
            prepared->channels = 2;  /* a reasonable default */
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   534
        }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   535
        break;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   536
    }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   537
    case 1:                    /* Mono */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   538
    case 2:                    /* Stereo */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   539
    case 4:                    /* surround */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   540
    case 6:                    /* surround with center and lfe */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   541
        break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   542
    default:
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   543
        SDL_SetError("Unsupported number of audio channels.");
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   544
        return 0;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   545
    }
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   546
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   547
    if (orig->samples == 0) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   548
        const char *env = SDL_getenv("SDL_AUDIO_SAMPLES");
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   549
        if ( (!env) || ((prepared->samples = (Uint16) SDL_atoi(env)) == 0) ) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   550
            /* Pick a default of ~46 ms at desired frequency */
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   551
            /* !!! FIXME: remove this when the non-Po2 resampling is in. */
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   552
            const int samples = (prepared->freq / 1000) * 46;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   553
            int power2 = 1;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   554
            while (power2 < samples) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   555
                power2 *= 2;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   556
            }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   557
            prepared->samples = power2;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   558
        }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   559
    }
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   560
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   561
    /* Calculate the silence and size of the audio specification */
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   562
    SDL_CalculateAudioSpec(prepared);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   563
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   564
    return 1;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   565
}
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   566
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   567
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   568
static SDL_AudioDeviceID
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   569
open_audio_device(const char *devname, int iscapture,
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   570
                    const SDL_AudioSpec *_desired, SDL_AudioSpec *obtained,
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   571
                    int min_id)
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   572
{
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   573
    SDL_AudioDeviceID id = 0;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   574
    SDL_AudioSpec desired;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   575
    SDL_AudioDevice *device;
3796
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   576
    int i = 0;
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   577
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   578
    if (!SDL_WasInit(SDL_INIT_AUDIO)) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   579
        SDL_SetError("Audio subsystem is not initialized");
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   580
        return 0;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   581
    }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   582
3796
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   583
    if ((iscapture) && (!current_audio.impl.HasCaptureSupport)) {
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   584
        SDL_SetError("No capture support");
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   585
        return 0;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   586
    }
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   587
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   588
    if (!prepare_audiospec(_desired, &desired)) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   589
        return 0;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   590
    }
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   591
3786
b70f4e9291bb High level now lets user select a specific audio device with an environment
Ryan C. Gordon <icculus@icculus.org>
parents: 3784
diff changeset
   592
    /* If app doesn't care about a specific device, let the user override. */
b70f4e9291bb High level now lets user select a specific audio device with an environment
Ryan C. Gordon <icculus@icculus.org>
parents: 3784
diff changeset
   593
    if (devname == NULL) {
b70f4e9291bb High level now lets user select a specific audio device with an environment
Ryan C. Gordon <icculus@icculus.org>
parents: 3784
diff changeset
   594
        devname = SDL_getenv("SDL_AUDIO_DEVICE_NAME");
b70f4e9291bb High level now lets user select a specific audio device with an environment
Ryan C. Gordon <icculus@icculus.org>
parents: 3784
diff changeset
   595
    }
b70f4e9291bb High level now lets user select a specific audio device with an environment
Ryan C. Gordon <icculus@icculus.org>
parents: 3784
diff changeset
   596
3796
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   597
    /*
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   598
     * Catch device names at the high level for the simple case...
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   599
     * This lets us have a basic "device enumeration" for systems that
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   600
     *  don't have multiple devices, but makes sure the device name is
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   601
     *  always NULL when it hits the low level.
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   602
     *
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   603
     * Also make sure that the simple case prevents multiple simultaneous
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   604
     *  opens of the default system device.
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   605
     */
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   606
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   607
    if ((iscapture) && (current_audio.impl.OnlyHasDefaultInputDevice)) {
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   608
        if ((devname) && (SDL_strcmp(devname, DEFAULT_INPUT_DEVNAME) != 0)) {
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   609
            SDL_SetError("No such device");
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   610
            return 0;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   611
        }
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   612
        devname = NULL;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   613
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   614
        for (i = 0; i < SDL_arraysize(open_devices); i++) {
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   615
            if ((open_devices[i]) && (open_devices[i]->iscapture)) {
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   616
                SDL_SetError("Audio device already open");
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   617
                return;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   618
            }
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   619
        }
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   620
    }
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   621
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   622
    if ((!iscapture) && (current_audio.impl.OnlyHasDefaultOutputDevice)) {
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   623
        if ((devname) && (SDL_strcmp(devname, DEFAULT_OUTPUT_DEVNAME) != 0)) {
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   624
            SDL_SetError("No such device");
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   625
            return 0;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   626
        }
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   627
        devname = NULL;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   628
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   629
        for (i = 0; i < SDL_arraysize(open_devices); i++) {
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   630
            if ((open_devices[i]) && (!open_devices[i]->iscapture)) {
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   631
                SDL_SetError("Audio device already open");
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   632
                return;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   633
            }
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   634
        }
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   635
    }
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   636
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   637
    device = (SDL_AudioDevice *) SDL_AllocAudioMem(sizeof (SDL_AudioDevice));
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   638
    if (device == NULL) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   639
        SDL_OutOfMemory();
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   640
        return 0;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   641
    }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   642
    SDL_memset(device, '\0', sizeof (SDL_AudioDevice));
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   643
    SDL_memcpy(&device->spec, &desired, sizeof (SDL_AudioSpec));
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   644
    device->enabled = 1;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   645
    device->paused = 1;
3796
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   646
    device->iscapture = iscapture;
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   647
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   648
    /* Create a semaphore for locking the sound buffers */
3796
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   649
    if (!current_audio.impl.SkipMixerLock) {
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   650
        device->mixer_lock = SDL_CreateMutex();
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   651
        if (device->mixer_lock == NULL) {
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   652
            close_audio_device(device);
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   653
            SDL_SetError("Couldn't create mixer lock");
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   654
            return 0;
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   655
        }
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   656
    }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   657
3792
866c310e2cb5 Changed some 1.3 audio symbol names.
Ryan C. Gordon <icculus@icculus.org>
parents: 3790
diff changeset
   658
    if (!current_audio.impl.OpenDevice(device, devname, iscapture)) {
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   659
        close_audio_device(device);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   660
        return 0;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   661
    }
3796
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   662
    device->opened = 1;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   663
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   664
    /* If the audio driver changes the buffer size, accept it */
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   665
    if (device->spec.samples != desired.samples) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   666
        desired.samples = device->spec.samples;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   667
        SDL_CalculateAudioSpec(&device->spec);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   668
    }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   669
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   670
    /* Allocate a fake audio memory buffer */
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   671
    device->fake_stream = SDL_AllocAudioMem(device->spec.size);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   672
    if (device->fake_stream == NULL) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   673
        close_audio_device(device);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   674
        SDL_OutOfMemory();
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   675
        return 0;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   676
    }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   677
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   678
    /* See if we need to do any conversion */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   679
    if (obtained != NULL) {
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   680
        SDL_memcpy(obtained, &device->spec, sizeof(SDL_AudioSpec));
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   681
    } else if (desired.freq != device->spec.freq ||
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   682
               desired.format != device->spec.format ||
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   683
               desired.channels != device->spec.channels) {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   684
        /* Build an audio conversion block */
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   685
        if (SDL_BuildAudioCVT(&device->convert,
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   686
                              desired.format, desired.channels,
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   687
                              desired.freq,
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   688
                              device->spec.format, device->spec.channels,
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   689
                              device->spec.freq) < 0) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   690
            close_audio_device(device);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   691
            return 0;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   692
        }
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   693
        if (device->convert.needed) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   694
            device->convert.len = desired.size;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   695
            device->convert.buf =
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   696
                (Uint8 *) SDL_AllocAudioMem(device->convert.len *
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   697
                                            device->convert.len_mult);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   698
            if (device->convert.buf == NULL) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   699
                close_audio_device(device);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   700
                SDL_OutOfMemory();
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   701
                return 0;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   702
            }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   703
        }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   704
    }
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   705
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   706
    /* Find an available device ID and store the structure... */
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   707
    for (id = min_id-1; id < SDL_arraysize(open_devices); id++) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   708
        if (open_devices[id] == NULL) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   709
            open_devices[id] = device;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   710
            break;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   711
        }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   712
    }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   713
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   714
    if (id == SDL_arraysize(open_devices)) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   715
        SDL_SetError("Too many open audio devices");
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   716
        close_audio_device(device);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   717
        return 0;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   718
    }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   719
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   720
    /* Start the audio thread if necessary */
3796
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   721
    if (!current_audio.impl.ProvidesOwnCallbackThread) {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   722
        /* Start the audio thread */
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   723
/* !!! FIXME: this is nasty. */
1402
d910939febfa Use consistent identifiers for the various platforms we support.
Sam Lantinga <slouken@libsdl.org>
parents: 1379
diff changeset
   724
#if (defined(__WIN32__) && !defined(_WIN32_WCE)) && !defined(HAVE_LIBC)
1330
450721ad5436 It's now possible to build SDL without any C runtime at all on Windows,
Sam Lantinga <slouken@libsdl.org>
parents: 1312
diff changeset
   725
#undef SDL_CreateThread
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   726
        device->thread = SDL_CreateThread(SDL_RunAudio, device, NULL, NULL);
1330
450721ad5436 It's now possible to build SDL without any C runtime at all on Windows,
Sam Lantinga <slouken@libsdl.org>
parents: 1312
diff changeset
   727
#else
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   728
        device->thread = SDL_CreateThread(SDL_RunAudio, device);
1330
450721ad5436 It's now possible to build SDL without any C runtime at all on Windows,
Sam Lantinga <slouken@libsdl.org>
parents: 1312
diff changeset
   729
#endif
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   730
        if (device->thread == NULL) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   731
            SDL_CloseAudioDevice(id+1);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   732
            SDL_SetError("Couldn't create audio thread");
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   733
            return 0;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   734
        }
3796
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   735
    }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   736
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   737
    return id+1;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   738
}
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   739
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   740
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   741
int
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   742
SDL_OpenAudio(const SDL_AudioSpec * desired, SDL_AudioSpec * obtained)
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   743
{
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   744
    SDL_AudioDeviceID id = 0;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   745
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   746
    /* Start up the audio driver, if necessary. This is legacy behaviour! */
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   747
    if (!SDL_WasInit(SDL_INIT_AUDIO)) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   748
        if (SDL_InitSubSystem(SDL_INIT_AUDIO) < 0) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   749
            return (-1);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   750
        }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   751
    }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   752
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   753
    /* SDL_OpenAudio() is legacy and can only act on Device ID #1. */
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   754
    if (open_devices[0] != NULL) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   755
        SDL_SetError("Audio device is already opened");
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   756
        return (-1);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   757
    }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   758
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   759
    id = open_audio_device(NULL, 0, desired, obtained, 1);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   760
    if (id > 1) {  /* this should never happen in theory... */
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   761
        SDL_CloseAudioDevice(id);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   762
        SDL_SetError("Internal error");  /* MUST be Device ID #1! */
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   763
        return (-1);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   764
    }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   765
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   766
    return ((id == 0) ? -1 : 0);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   767
}
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   768
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   769
SDL_AudioDeviceID
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   770
SDL_OpenAudioDevice(const char *device, int iscapture,
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   771
                    const SDL_AudioSpec *desired, SDL_AudioSpec *obtained)
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   772
{
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   773
    return open_audio_device(device, iscapture, desired, obtained, 2);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   774
}
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   775
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   776
SDL_audiostatus
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   777
SDL_GetAudioDeviceStatus(SDL_AudioDeviceID devid)
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   778
{
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   779
    SDL_AudioDevice *device = get_audio_device(devid);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   780
    SDL_audiostatus status = SDL_AUDIO_STOPPED;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   781
    if (device && device->enabled) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   782
        if (device->paused) {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   783
            status = SDL_AUDIO_PAUSED;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   784
        } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   785
            status = SDL_AUDIO_PLAYING;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   786
        }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   787
    }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   788
    return (status);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   789
}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   790
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   791
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   792
SDL_audiostatus
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   793
SDL_GetAudioStatus(void)
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   794
{
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   795
    return SDL_GetAudioDeviceStatus(1);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   796
}
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   797
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   798
void
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   799
SDL_PauseAudioDevice(SDL_AudioDeviceID devid, int pause_on)
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   800
{
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   801
    SDL_AudioDevice *device = get_audio_device(devid);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   802
    if (device) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   803
        device->paused = pause_on;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   804
    }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   805
}
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   806
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   807
void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   808
SDL_PauseAudio(int pause_on)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   809
{
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   810
    SDL_PauseAudioDevice(1, pause_on);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   811
}
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   812
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   813
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   814
void
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   815
SDL_LockAudioDevice(SDL_AudioDeviceID devid)
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   816
{
3796
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   817
    /* Obtain a lock on the mixing buffers */
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   818
    SDL_AudioDevice *device = get_audio_device(devid);
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   819
    if (device) {
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   820
        current_audio.impl.LockDevice(device);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   821
    }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   822
}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   823
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   824
void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   825
SDL_LockAudio(void)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   826
{
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   827
    SDL_LockAudioDevice(1);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   828
}
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   829
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   830
void
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   831
SDL_UnlockAudioDevice(SDL_AudioDeviceID devid)
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   832
{
3796
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   833
    /* Obtain a lock on the mixing buffers */
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   834
    SDL_AudioDevice *device = get_audio_device(devid);
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   835
    if (device) {
b19680c84cdf Bunch of 1.3 audio cleanups to remove FIXMEs, get driver specific crap out of
Ryan C. Gordon <icculus@icculus.org>
parents: 3795
diff changeset
   836
        current_audio.impl.UnlockDevice(device);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   837
    }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   838
}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   839
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   840
void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   841
SDL_UnlockAudio(void)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   842
{
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   843
    SDL_UnlockAudioDevice(1);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   844
}
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   845
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   846
void
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   847
SDL_CloseAudioDevice(SDL_AudioDeviceID devid)
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   848
{
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   849
    SDL_AudioDevice *device = get_audio_device(devid);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   850
    if (device) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   851
        close_audio_device(device);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   852
        open_devices[devid-1] = NULL;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   853
    }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   854
}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   855
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   856
void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   857
SDL_CloseAudio(void)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   858
{
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   859
    SDL_CloseAudioDevice(1);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   860
}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   861
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   862
void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   863
SDL_AudioQuit(void)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   864
{
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   865
    SDL_AudioDeviceID i;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   866
    for (i = 0; i < SDL_arraysize(open_devices); i++) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   867
        SDL_CloseAudioDevice(i);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   868
    }
3787
8d74a4721ca9 Added deinitialize hook.
Ryan C. Gordon <icculus@icculus.org>
parents: 3786
diff changeset
   869
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   870
    /* Free the driver data */
3788
7006b176ef4f More work on the 1.3 CoreAudio code.
Ryan C. Gordon <icculus@icculus.org>
parents: 3787
diff changeset
   871
    current_audio.impl.Deinitialize();
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   872
    SDL_memset(&current_audio, '\0', sizeof (current_audio));
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   873
    SDL_memset(open_devices, '\0', sizeof (open_devices));
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   874
}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   875
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1978
diff changeset
   876
#define NUM_FORMATS 10
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   877
static int format_idx;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   878
static int format_idx_sub;
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1978
diff changeset
   879
static SDL_AudioFormat format_list[NUM_FORMATS][NUM_FORMATS] = {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   880
    {AUDIO_U8, AUDIO_S8, AUDIO_S16LSB, AUDIO_S16MSB, AUDIO_U16LSB,
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1978
diff changeset
   881
     AUDIO_U16MSB, AUDIO_S32LSB, AUDIO_S32MSB, AUDIO_F32LSB, AUDIO_F32MSB},
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   882
    {AUDIO_S8, AUDIO_U8, AUDIO_S16LSB, AUDIO_S16MSB, AUDIO_U16LSB,
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1978
diff changeset
   883
     AUDIO_U16MSB, AUDIO_S32LSB, AUDIO_S32MSB, AUDIO_F32LSB, AUDIO_F32MSB},
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1978
diff changeset
   884
    {AUDIO_S16LSB, AUDIO_S16MSB, AUDIO_U16LSB, AUDIO_U16MSB, AUDIO_S32LSB,
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1978
diff changeset
   885
     AUDIO_S32MSB, AUDIO_F32LSB, AUDIO_F32MSB, AUDIO_U8, AUDIO_S8},
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1978
diff changeset
   886
    {AUDIO_S16MSB, AUDIO_S16LSB, AUDIO_U16MSB, AUDIO_U16LSB, AUDIO_S32MSB,
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1978
diff changeset
   887
     AUDIO_S32LSB, AUDIO_F32MSB, AUDIO_F32LSB, AUDIO_U8, AUDIO_S8},
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1978
diff changeset
   888
    {AUDIO_U16LSB, AUDIO_U16MSB, AUDIO_S16LSB, AUDIO_S16MSB, AUDIO_S32LSB,
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1978
diff changeset
   889
     AUDIO_S32MSB, AUDIO_F32LSB, AUDIO_F32MSB, AUDIO_U8, AUDIO_S8},
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1978
diff changeset
   890
    {AUDIO_U16MSB, AUDIO_U16LSB, AUDIO_S16MSB, AUDIO_S16LSB, AUDIO_S32MSB,
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1978
diff changeset
   891
     AUDIO_S32LSB, AUDIO_F32MSB, AUDIO_F32LSB, AUDIO_U8, AUDIO_S8},
1993
7a3889fc9e5d Reordered the favored audio format list a little.
Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
   892
    {AUDIO_S32LSB, AUDIO_S32MSB, AUDIO_F32LSB, AUDIO_F32MSB, AUDIO_S16LSB,
7a3889fc9e5d Reordered the favored audio format list a little.
Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
   893
     AUDIO_S16MSB, AUDIO_U16LSB, AUDIO_U16MSB, AUDIO_U8, AUDIO_S8},
7a3889fc9e5d Reordered the favored audio format list a little.
Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
   894
    {AUDIO_S32MSB, AUDIO_S32LSB, AUDIO_F32MSB, AUDIO_F32LSB, AUDIO_S16MSB,
7a3889fc9e5d Reordered the favored audio format list a little.
Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
   895
     AUDIO_S16LSB, AUDIO_U16MSB, AUDIO_U16LSB, AUDIO_U8, AUDIO_S8},
7a3889fc9e5d Reordered the favored audio format list a little.
Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
   896
    {AUDIO_F32LSB, AUDIO_F32MSB, AUDIO_S32LSB, AUDIO_S32MSB, AUDIO_S16LSB,
7a3889fc9e5d Reordered the favored audio format list a little.
Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
   897
     AUDIO_S16MSB, AUDIO_U16LSB, AUDIO_U16MSB, AUDIO_U8, AUDIO_S8},
7a3889fc9e5d Reordered the favored audio format list a little.
Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
   898
    {AUDIO_F32MSB, AUDIO_F32LSB, AUDIO_S32MSB, AUDIO_S32LSB, AUDIO_S16MSB,
7a3889fc9e5d Reordered the favored audio format list a little.
Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
   899
     AUDIO_S16LSB, AUDIO_U16MSB, AUDIO_U16LSB, AUDIO_U8, AUDIO_S8},
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   900
};
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   901
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1978
diff changeset
   902
SDL_AudioFormat
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1978
diff changeset
   903
SDL_FirstAudioFormat(SDL_AudioFormat format)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   904
{
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   905
    for (format_idx = 0; format_idx < NUM_FORMATS; ++format_idx) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   906
        if (format_list[format_idx][0] == format) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   907
            break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   908
        }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   909
    }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   910
    format_idx_sub = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   911
    return (SDL_NextAudioFormat());
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   912
}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   913
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1978
diff changeset
   914
SDL_AudioFormat
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   915
SDL_NextAudioFormat(void)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   916
{
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   917
    if ((format_idx == NUM_FORMATS) || (format_idx_sub == NUM_FORMATS)) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   918
        return (0);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   919
    }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   920
    return (format_list[format_idx][format_idx_sub++]);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   921
}
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   922
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   923
void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   924
SDL_CalculateAudioSpec(SDL_AudioSpec * spec)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   925
{
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   926
    switch (spec->format) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   927
    case AUDIO_U8:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   928
        spec->silence = 0x80;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   929
        break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   930
    default:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   931
        spec->silence = 0x00;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   932
        break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   933
    }
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   934
    spec->size = SDL_AUDIO_BITSIZE(spec->format) / 8;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   935
    spec->size *= spec->channels;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   936
    spec->size *= spec->samples;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
   937
}
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   938
3784
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   939
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   940
/*
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   941
 * Moved here from SDL_mixer.c, since it relies on internals of an opened
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   942
 *  audio device (and is deprecated, by the way!).
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   943
 */
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   944
void
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   945
SDL_MixAudio(Uint8 * dst, const Uint8 * src, Uint32 len, int volume)
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   946
{
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   947
    /* Mix the user-level audio format */
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   948
    SDL_AudioDevice *device = get_audio_device(1);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   949
    if (device != NULL) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   950
        SDL_AudioFormat format;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   951
        if (device->convert.needed) {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   952
            format = device->convert.src_format;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   953
        } else {
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   954
            format = device->spec.format;
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   955
        }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   956
        SDL_MixAudioFormat(dst, src, format, len, volume);
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   957
    }
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   958
}
37c9c4590689 First batch of heavy lifting on supporting multiple audio devices at once.
Ryan C. Gordon <icculus@icculus.org>
parents: 3781
diff changeset
   959
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1794
diff changeset
   960
/* vi: set ts=4 sw=4 expandtab: */