Mercurial > sdl-ios-xcode
annotate src/audio/dsp/SDL_dspaudio.c @ 3816:9d070c1a45fa SDL-ryan-multiple-audio-device
Moved AudioBootstrap section in converted drivers to bottom of source, so I
could delete the predeclarations (one more thing to forget to update when
changing the API, otherwise). There're a few other cleanups that snuck into
this commit, too.
author | Ryan C. Gordon <icculus@icculus.org> |
---|---|
date | Fri, 06 Oct 2006 04:46:58 +0000 |
parents | 2c5387c0a642 |
children | 103bbe13f5eb |
rev | line source |
---|---|
0 | 1 /* |
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:
1281
diff
changeset
|
3 Copyright (C) 1997-2006 Sam Lantinga |
0 | 4 |
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:
1281
diff
changeset
|
6 modify it under the terms of the GNU Lesser General Public |
0 | 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:
1281
diff
changeset
|
8 version 2.1 of the License, or (at your option) any later version. |
0 | 9 |
10 This library is distributed in the hope that it will be useful, | |
11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
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:
1281
diff
changeset
|
13 Lesser General Public License for more details. |
0 | 14 |
1312
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
1281
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:
1281
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:
1281
diff
changeset
|
17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
0 | 18 |
19 Sam Lantinga | |
252
e8157fcb3114
Updated the source with the correct e-mail address
Sam Lantinga <slouken@libsdl.org>
parents:
248
diff
changeset
|
20 slouken@libsdl.org |
968
4675910b0b7b
Date: Mon, 11 Oct 2004 15:17:27 +0300 (EEST)
Sam Lantinga <slouken@libsdl.org>
parents:
960
diff
changeset
|
21 |
4675910b0b7b
Date: Mon, 11 Oct 2004 15:17:27 +0300 (EEST)
Sam Lantinga <slouken@libsdl.org>
parents:
960
diff
changeset
|
22 Modified in Oct 2004 by Hannu Savolainen |
4675910b0b7b
Date: Mon, 11 Oct 2004 15:17:27 +0300 (EEST)
Sam Lantinga <slouken@libsdl.org>
parents:
960
diff
changeset
|
23 hannu@opensound.com |
0 | 24 */ |
1402
d910939febfa
Use consistent identifiers for the various platforms we support.
Sam Lantinga <slouken@libsdl.org>
parents:
1361
diff
changeset
|
25 #include "SDL_config.h" |
0 | 26 |
27 /* Allow access to a raw mixing buffer */ | |
28 | |
1895
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
29 #include <stdio.h> /* For perror() */ |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
30 #include <string.h> /* For strerror() */ |
0 | 31 #include <errno.h> |
32 #include <unistd.h> | |
33 #include <fcntl.h> | |
34 #include <signal.h> | |
35 #include <sys/time.h> | |
36 #include <sys/ioctl.h> | |
37 #include <sys/stat.h> | |
1361
19418e4422cb
New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents:
1358
diff
changeset
|
38 |
19418e4422cb
New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents:
1358
diff
changeset
|
39 #if SDL_AUDIO_DRIVER_OSS_SOUNDCARD_H |
94
ae6e6b73333f
Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents:
93
diff
changeset
|
40 /* This is installed on some systems */ |
ae6e6b73333f
Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents:
93
diff
changeset
|
41 #include <soundcard.h> |
ae6e6b73333f
Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents:
93
diff
changeset
|
42 #else |
ae6e6b73333f
Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents:
93
diff
changeset
|
43 /* This is recommended by OSS */ |
0 | 44 #include <sys/soundcard.h> |
94
ae6e6b73333f
Cleaned up the OpenBSD port, thanks to Peter Valchev
Sam Lantinga <slouken@lokigames.com>
parents:
93
diff
changeset
|
45 #endif |
0 | 46 |
1358
c71e05b4dc2e
More header massaging... works great on Windows. ;-)
Sam Lantinga <slouken@libsdl.org>
parents:
1341
diff
changeset
|
47 #include "SDL_timer.h" |
0 | 48 #include "SDL_audio.h" |
1361
19418e4422cb
New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents:
1358
diff
changeset
|
49 #include "../SDL_audiomem.h" |
19418e4422cb
New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents:
1358
diff
changeset
|
50 #include "../SDL_audio_c.h" |
19418e4422cb
New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents:
1358
diff
changeset
|
51 #include "../SDL_audiodev_c.h" |
0 | 52 #include "SDL_dspaudio.h" |
53 | |
54 /* The tag name used by DSP audio */ | |
55 #define DSP_DRIVER_NAME "dsp" | |
56 | |
57 /* Open the audio device for playback, and don't block if busy */ | |
3810
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
58 #define OPEN_FLAGS_OUTPUT (O_WRONLY|O_NONBLOCK) |
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
59 #define OPEN_FLAGS_INPUT (O_RDONLY|O_NONBLOCK) |
0 | 60 |
61 /* Audio driver bootstrap functions */ | |
62 | |
3810
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
63 static char **outputDevices = NULL; |
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
64 static int outputDeviceCount = 0; |
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
65 static char **inputDevices = NULL; |
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
66 static int inputDeviceCount = 0; |
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
67 |
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
68 static inline void |
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
69 free_device_list(char ***devs, int *count) |
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
70 { |
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
71 SDL_FreeUnixAudioDevices(devs, count); |
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
72 } |
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
73 |
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
74 static inline void |
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
75 build_device_list(int iscapture, char ***devs, int *count) |
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
76 { |
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
77 const int flags = ((iscapture) ? OPEN_FLAGS_INPUT : OPEN_FLAGS_OUTPUT); |
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
78 free_device_list(devs, count); |
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
79 SDL_EnumUnixAudioDevices(flags, 0, NULL, devs, count); |
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
80 } |
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
81 |
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
82 static inline void |
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
83 build_device_lists(void) |
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
84 { |
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
85 build_device_list(0, &outputDevices, &outputDeviceCount); |
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
86 build_device_list(1, &inputDevices, &inputDeviceCount); |
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
87 } |
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
88 |
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
89 |
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
90 static inline void |
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
91 free_device_lists(void) |
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
92 { |
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
93 free_device_list(&outputDevices, &outputDeviceCount); |
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
94 free_device_list(&inputDevices, &inputDeviceCount); |
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
95 } |
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
96 |
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
97 |
1895
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
98 static int |
3795
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
99 DSP_Available(void) |
0 | 100 { |
3795
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
101 int available = 0; |
3810
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
102 build_device_lists(); |
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
103 available = ((outputDeviceCount > 0) || (inputDeviceCount > 0)); |
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
104 free_device_lists(); |
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
105 return available; |
0 | 106 } |
107 | |
3795
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
108 |
3810
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
109 static void DSP_Deinitialize(void) |
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
110 { |
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
111 free_device_lists(); |
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
112 } |
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
113 |
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
114 |
3795
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
115 static int |
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
116 DSP_DetectDevices(int iscapture) |
0 | 117 { |
3810
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
118 if (iscapture) { |
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
119 build_device_list(1, &inputDevices, &inputDeviceCount); |
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
120 return inputDeviceCount; |
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
121 } else { |
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
122 build_device_list(0, &outputDevices, &outputDeviceCount); |
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
123 return outputDeviceCount; |
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
124 } |
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
125 |
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
126 return 0; /* shouldn't ever hit this. */ |
0 | 127 } |
128 | |
3795
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
129 static const char * |
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
130 DSP_GetDeviceName(int index, int iscapture) |
0 | 131 { |
3810
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
132 if ((iscapture) && (index < inputDeviceCount)) { |
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
133 return inputDevices[index]; |
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
134 } else if ((!iscapture) && (index < outputDeviceCount)) { |
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
135 return outputDevices[index]; |
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
136 } |
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
137 |
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
138 SDL_SetError("No such device"); |
3795
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
139 return NULL; |
0 | 140 } |
141 | |
142 | |
1895
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
143 static int |
3795
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
144 DSP_OpenDevice(_THIS, const char *devname, int iscapture) |
0 | 145 { |
3810
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
146 const int flags = ((iscapture) ? OPEN_FLAGS_INPUT : OPEN_FLAGS_OUTPUT); |
1895
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
147 int format; |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
148 int value; |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
149 int frag_spec; |
1982
3b4ce57c6215
First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents:
1895
diff
changeset
|
150 SDL_AudioFormat test_format; |
0 | 151 |
3810
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
152 /* We don't care what the devname is...we'll try to open anything. */ |
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
153 /* ...but default to first name in the list... */ |
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
154 if (devname == NULL) { |
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
155 if ( ((iscapture) && (inputDeviceCount == 0)) || |
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
156 ((!iscapture) && (outputDeviceCount == 0)) ) { |
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
157 SDL_SetError("No such audio device"); |
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
158 return 0; |
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
159 } |
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
160 devname = ((iscapture) ? inputDevices[0] : outputDevices[0]); |
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
161 } |
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
162 |
3795
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
163 /* Initialize all variables that we clean on shutdown */ |
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
164 this->hidden = (struct SDL_PrivateAudioData *) |
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
165 SDL_malloc((sizeof *this->hidden)); |
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
166 if (this->hidden == NULL) { |
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
167 SDL_OutOfMemory(); |
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
168 return 0; |
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
169 } |
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
170 SDL_memset(this->hidden, 0, (sizeof *this->hidden)); |
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
171 this->hidden->audio_fd = -1; |
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
172 |
1895
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
173 /* Open the audio device */ |
3810
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
174 this->hidden->audio_fd = open(devname, flags, 0); |
3795
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
175 if (this->hidden->audio_fd < 0) { |
3810
2c5387c0a642
Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents:
3798
diff
changeset
|
176 SDL_SetError("Couldn't open %s: %s", devname, strerror(errno)); |
3795
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
177 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:
1612
diff
changeset
|
178 } |
3795
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
179 this->hidden->mixbuf = NULL; |
968
4675910b0b7b
Date: Mon, 11 Oct 2004 15:17:27 +0300 (EEST)
Sam Lantinga <slouken@libsdl.org>
parents:
960
diff
changeset
|
180 |
1895
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
181 /* Make the file descriptor use blocking writes with fcntl() */ |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
182 { |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
183 long flags; |
3795
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
184 flags = fcntl(this->hidden->audio_fd, F_GETFL); |
1895
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
185 flags &= ~O_NONBLOCK; |
3795
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
186 if (fcntl(this->hidden->audio_fd, F_SETFL, flags) < 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:
1612
diff
changeset
|
187 SDL_SetError("Couldn't set audio blocking mode"); |
3795
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
188 DSP_CloseDevice(this); |
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
189 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:
1612
diff
changeset
|
190 } |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
191 } |
968
4675910b0b7b
Date: Mon, 11 Oct 2004 15:17:27 +0300 (EEST)
Sam Lantinga <slouken@libsdl.org>
parents:
960
diff
changeset
|
192 |
1895
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
193 /* Get a list of supported hardware formats */ |
3795
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
194 if (ioctl(this->hidden->audio_fd, SNDCTL_DSP_GETFMTS, &value) < 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:
1612
diff
changeset
|
195 perror("SNDCTL_DSP_GETFMTS"); |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
196 SDL_SetError("Couldn't get audio format list"); |
3795
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
197 DSP_CloseDevice(this); |
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
198 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:
1612
diff
changeset
|
199 } |
968
4675910b0b7b
Date: Mon, 11 Oct 2004 15:17:27 +0300 (EEST)
Sam Lantinga <slouken@libsdl.org>
parents:
960
diff
changeset
|
200 |
1895
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
201 /* Try for a closest match on audio format */ |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
202 format = 0; |
3795
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
203 for (test_format = SDL_FirstAudioFormat(this->spec.format); |
1895
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
204 !format && test_format;) { |
968
4675910b0b7b
Date: Mon, 11 Oct 2004 15:17:27 +0300 (EEST)
Sam Lantinga <slouken@libsdl.org>
parents:
960
diff
changeset
|
205 #ifdef DEBUG_AUDIO |
1895
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
206 fprintf(stderr, "Trying format 0x%4.4x\n", test_format); |
968
4675910b0b7b
Date: Mon, 11 Oct 2004 15:17:27 +0300 (EEST)
Sam Lantinga <slouken@libsdl.org>
parents:
960
diff
changeset
|
207 #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:
1612
diff
changeset
|
208 switch (test_format) { |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
209 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:
1612
diff
changeset
|
210 if (value & AFMT_U8) { |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
211 format = AFMT_U8; |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
212 } |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
213 break; |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
214 case AUDIO_S16LSB: |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
215 if (value & AFMT_S16_LE) { |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
216 format = AFMT_S16_LE; |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
217 } |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
218 break; |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
219 case AUDIO_S16MSB: |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
220 if (value & AFMT_S16_BE) { |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
221 format = AFMT_S16_BE; |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
222 } |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
223 break; |
968
4675910b0b7b
Date: Mon, 11 Oct 2004 15:17:27 +0300 (EEST)
Sam Lantinga <slouken@libsdl.org>
parents:
960
diff
changeset
|
224 #if 0 |
4675910b0b7b
Date: Mon, 11 Oct 2004 15:17:27 +0300 (EEST)
Sam Lantinga <slouken@libsdl.org>
parents:
960
diff
changeset
|
225 /* |
4675910b0b7b
Date: Mon, 11 Oct 2004 15:17:27 +0300 (EEST)
Sam Lantinga <slouken@libsdl.org>
parents:
960
diff
changeset
|
226 * These formats are not used by any real life systems so they are not |
4675910b0b7b
Date: Mon, 11 Oct 2004 15:17:27 +0300 (EEST)
Sam Lantinga <slouken@libsdl.org>
parents:
960
diff
changeset
|
227 * needed here. |
4675910b0b7b
Date: Mon, 11 Oct 2004 15:17:27 +0300 (EEST)
Sam Lantinga <slouken@libsdl.org>
parents:
960
diff
changeset
|
228 */ |
1895
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
229 case AUDIO_S8: |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
230 if (value & AFMT_S8) { |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
231 format = AFMT_S8; |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
232 } |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
233 break; |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
234 case AUDIO_U16LSB: |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
235 if (value & AFMT_U16_LE) { |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
236 format = AFMT_U16_LE; |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
237 } |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
238 break; |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
239 case AUDIO_U16MSB: |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
240 if (value & AFMT_U16_BE) { |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
241 format = AFMT_U16_BE; |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
242 } |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
243 break; |
968
4675910b0b7b
Date: Mon, 11 Oct 2004 15:17:27 +0300 (EEST)
Sam Lantinga <slouken@libsdl.org>
parents:
960
diff
changeset
|
244 #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:
1612
diff
changeset
|
245 default: |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
246 format = 0; |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
247 break; |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
248 } |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
249 if (!format) { |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
250 test_format = SDL_NextAudioFormat(); |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
251 } |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
252 } |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
253 if (format == 0) { |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
254 SDL_SetError("Couldn't find any hardware audio formats"); |
3795
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
255 DSP_CloseDevice(this); |
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
256 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:
1612
diff
changeset
|
257 } |
3795
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
258 this->spec.format = test_format; |
968
4675910b0b7b
Date: Mon, 11 Oct 2004 15:17:27 +0300 (EEST)
Sam Lantinga <slouken@libsdl.org>
parents:
960
diff
changeset
|
259 |
1895
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
260 /* Set the audio format */ |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
261 value = format; |
3795
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
262 if ( (ioctl(this->hidden->audio_fd, SNDCTL_DSP_SETFMT, &value) < 0) || |
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
263 (value != format) ) { |
1895
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
264 perror("SNDCTL_DSP_SETFMT"); |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
265 SDL_SetError("Couldn't set audio format"); |
3795
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
266 DSP_CloseDevice(this); |
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
267 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:
1612
diff
changeset
|
268 } |
968
4675910b0b7b
Date: Mon, 11 Oct 2004 15:17:27 +0300 (EEST)
Sam Lantinga <slouken@libsdl.org>
parents:
960
diff
changeset
|
269 |
1895
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
270 /* Set the number of channels of output */ |
3795
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
271 value = this->spec.channels; |
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
272 if (ioctl(this->hidden->audio_fd, SNDCTL_DSP_CHANNELS, &value) < 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:
1612
diff
changeset
|
273 perror("SNDCTL_DSP_CHANNELS"); |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
274 SDL_SetError("Cannot set the number of channels"); |
3795
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
275 DSP_CloseDevice(this); |
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
276 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:
1612
diff
changeset
|
277 } |
3795
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
278 this->spec.channels = value; |
968
4675910b0b7b
Date: Mon, 11 Oct 2004 15:17:27 +0300 (EEST)
Sam Lantinga <slouken@libsdl.org>
parents:
960
diff
changeset
|
279 |
1895
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
280 /* Set the DSP frequency */ |
3795
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
281 value = this->spec.freq; |
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
282 if (ioctl(this->hidden->audio_fd, SNDCTL_DSP_SPEED, &value) < 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:
1612
diff
changeset
|
283 perror("SNDCTL_DSP_SPEED"); |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
284 SDL_SetError("Couldn't set audio frequency"); |
3795
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
285 DSP_CloseDevice(this); |
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
286 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:
1612
diff
changeset
|
287 } |
3795
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
288 this->spec.freq = value; |
0 | 289 |
1895
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
290 /* Calculate the final parameters for this audio specification */ |
3795
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
291 SDL_CalculateAudioSpec(&this->spec); |
0 | 292 |
1895
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
293 /* Determine the power of two of the fragment size */ |
3795
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
294 for (frag_spec = 0; (0x01U << frag_spec) < this->spec.size; ++frag_spec); |
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
295 if ((0x01U << frag_spec) != this->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:
1612
diff
changeset
|
296 SDL_SetError("Fragment size must be a power of two"); |
3795
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
297 DSP_CloseDevice(this); |
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
298 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:
1612
diff
changeset
|
299 } |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
300 frag_spec |= 0x00020000; /* two fragments, for low latency */ |
0 | 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:
1612
diff
changeset
|
302 /* Set the audio buffering parameters */ |
0 | 303 #ifdef DEBUG_AUDIO |
1895
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
304 fprintf(stderr, "Requesting %d fragments of size %d\n", |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
305 (frag_spec >> 16), 1 << (frag_spec & 0xFFFF)); |
0 | 306 #endif |
3795
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
307 if (ioctl(this->hidden->audio_fd, SNDCTL_DSP_SETFRAGMENT, &frag_spec) < 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:
1612
diff
changeset
|
308 perror("SNDCTL_DSP_SETFRAGMENT"); |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
309 } |
0 | 310 #ifdef DEBUG_AUDIO |
1895
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
311 { |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
312 audio_buf_info info; |
3795
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
313 ioctl(this->hidden->audio_fd, SNDCTL_DSP_GETOSPACE, &info); |
1895
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
314 fprintf(stderr, "fragments = %d\n", info.fragments); |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
315 fprintf(stderr, "fragstotal = %d\n", info.fragstotal); |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
316 fprintf(stderr, "fragsize = %d\n", info.fragsize); |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
317 fprintf(stderr, "bytes = %d\n", info.bytes); |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
318 } |
0 | 319 #endif |
320 | |
1895
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
321 /* Allocate mixing buffer */ |
3795
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
322 this->hidden->mixlen = this->spec.size; |
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
323 this->hidden->mixbuf = (Uint8 *) SDL_AllocAudioMem(this->hidden->mixlen); |
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
324 if (this->hidden->mixbuf == NULL) { |
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
325 DSP_CloseDevice(this); |
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
326 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:
1612
diff
changeset
|
327 } |
3795
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
328 SDL_memset(this->hidden->mixbuf, this->spec.silence, this->spec.size); |
0 | 329 |
1895
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
330 /* We're ready to rock and roll. :-) */ |
3795
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
331 return 1; |
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
332 } |
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
333 |
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
334 |
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
335 static void |
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
336 DSP_PlayDevice(_THIS) |
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
337 { |
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
338 const Uint8 *mixbuf = this->hidden->mixbuf; |
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
339 const int mixlen = this->hidden->mixlen; |
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
340 if (write(this->hidden->audio_fd, mixbuf, mixlen) == -1) { |
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
341 perror("Audio write"); |
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
342 this->enabled = 0; |
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
343 } |
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
344 #ifdef DEBUG_AUDIO |
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
345 fprintf(stderr, "Wrote %d bytes of audio data\n", mixlen); |
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
346 #endif |
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
347 } |
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
348 |
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
349 static Uint8 * |
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
350 DSP_GetDeviceBuf(_THIS) |
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
351 { |
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
352 return (this->hidden->mixbuf); |
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
353 } |
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
354 |
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
355 static void |
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
356 DSP_CloseDevice(_THIS) |
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
357 { |
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
358 if (this->hidden != NULL) { |
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
359 if (this->hidden->mixbuf != NULL) { |
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
360 SDL_FreeAudioMem(this->hidden->mixbuf); |
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
361 this->hidden->mixbuf = NULL; |
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
362 } |
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
363 if (this->hidden->audio_fd >= 0) { |
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
364 close(this->hidden->audio_fd); |
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
365 this->hidden->audio_fd = -1; |
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
366 } |
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
367 SDL_free(this->hidden); |
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
368 this->hidden = NULL; |
589bc3d060cd
More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents:
1982
diff
changeset
|
369 } |
0 | 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:
1612
diff
changeset
|
371 |
3816
9d070c1a45fa
Moved AudioBootstrap section in converted drivers to bottom of source, so I
Ryan C. Gordon <icculus@icculus.org>
parents:
3810
diff
changeset
|
372 static int |
9d070c1a45fa
Moved AudioBootstrap section in converted drivers to bottom of source, so I
Ryan C. Gordon <icculus@icculus.org>
parents:
3810
diff
changeset
|
373 DSP_Init(SDL_AudioDriverImpl *impl) |
9d070c1a45fa
Moved AudioBootstrap section in converted drivers to bottom of source, so I
Ryan C. Gordon <icculus@icculus.org>
parents:
3810
diff
changeset
|
374 { |
9d070c1a45fa
Moved AudioBootstrap section in converted drivers to bottom of source, so I
Ryan C. Gordon <icculus@icculus.org>
parents:
3810
diff
changeset
|
375 /* Set the function pointers */ |
9d070c1a45fa
Moved AudioBootstrap section in converted drivers to bottom of source, so I
Ryan C. Gordon <icculus@icculus.org>
parents:
3810
diff
changeset
|
376 impl->DetectDevices = DSP_DetectDevices; |
9d070c1a45fa
Moved AudioBootstrap section in converted drivers to bottom of source, so I
Ryan C. Gordon <icculus@icculus.org>
parents:
3810
diff
changeset
|
377 impl->GetDeviceName = DSP_GetDeviceName; |
9d070c1a45fa
Moved AudioBootstrap section in converted drivers to bottom of source, so I
Ryan C. Gordon <icculus@icculus.org>
parents:
3810
diff
changeset
|
378 impl->OpenDevice = DSP_OpenDevice; |
9d070c1a45fa
Moved AudioBootstrap section in converted drivers to bottom of source, so I
Ryan C. Gordon <icculus@icculus.org>
parents:
3810
diff
changeset
|
379 impl->PlayDevice = DSP_PlayDevice; |
9d070c1a45fa
Moved AudioBootstrap section in converted drivers to bottom of source, so I
Ryan C. Gordon <icculus@icculus.org>
parents:
3810
diff
changeset
|
380 impl->GetDeviceBuf = DSP_GetDeviceBuf; |
9d070c1a45fa
Moved AudioBootstrap section in converted drivers to bottom of source, so I
Ryan C. Gordon <icculus@icculus.org>
parents:
3810
diff
changeset
|
381 impl->CloseDevice = DSP_CloseDevice; |
9d070c1a45fa
Moved AudioBootstrap section in converted drivers to bottom of source, so I
Ryan C. Gordon <icculus@icculus.org>
parents:
3810
diff
changeset
|
382 impl->Deinitialize = DSP_Deinitialize; |
9d070c1a45fa
Moved AudioBootstrap section in converted drivers to bottom of source, so I
Ryan C. Gordon <icculus@icculus.org>
parents:
3810
diff
changeset
|
383 |
9d070c1a45fa
Moved AudioBootstrap section in converted drivers to bottom of source, so I
Ryan C. Gordon <icculus@icculus.org>
parents:
3810
diff
changeset
|
384 build_device_lists(); |
9d070c1a45fa
Moved AudioBootstrap section in converted drivers to bottom of source, so I
Ryan C. Gordon <icculus@icculus.org>
parents:
3810
diff
changeset
|
385 return 1; |
9d070c1a45fa
Moved AudioBootstrap section in converted drivers to bottom of source, so I
Ryan C. Gordon <icculus@icculus.org>
parents:
3810
diff
changeset
|
386 } |
9d070c1a45fa
Moved AudioBootstrap section in converted drivers to bottom of source, so I
Ryan C. Gordon <icculus@icculus.org>
parents:
3810
diff
changeset
|
387 |
9d070c1a45fa
Moved AudioBootstrap section in converted drivers to bottom of source, so I
Ryan C. Gordon <icculus@icculus.org>
parents:
3810
diff
changeset
|
388 |
9d070c1a45fa
Moved AudioBootstrap section in converted drivers to bottom of source, so I
Ryan C. Gordon <icculus@icculus.org>
parents:
3810
diff
changeset
|
389 AudioBootStrap DSP_bootstrap = { |
9d070c1a45fa
Moved AudioBootstrap section in converted drivers to bottom of source, so I
Ryan C. Gordon <icculus@icculus.org>
parents:
3810
diff
changeset
|
390 DSP_DRIVER_NAME, "OSS /dev/dsp standard audio", |
9d070c1a45fa
Moved AudioBootstrap section in converted drivers to bottom of source, so I
Ryan C. Gordon <icculus@icculus.org>
parents:
3810
diff
changeset
|
391 DSP_Available, DSP_Init, 0 |
9d070c1a45fa
Moved AudioBootstrap section in converted drivers to bottom of source, so I
Ryan C. Gordon <icculus@icculus.org>
parents:
3810
diff
changeset
|
392 }; |
9d070c1a45fa
Moved AudioBootstrap section in converted drivers to bottom of source, so I
Ryan C. Gordon <icculus@icculus.org>
parents:
3810
diff
changeset
|
393 |
1895
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1612
diff
changeset
|
394 /* vi: set ts=4 sw=4 expandtab: */ |