Mercurial > sdl-ios-xcode

annotate src/audio/arts/SDL_artsaudio.c @ 3813:92f7304e50ff SDL-ryan-multiple-audio-device

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Removed duplicate state from arts driver.
author Ryan C. Gordon <icculus@icculus.org>
date Fri, 06 Oct 2006 03:32:48 +0000
parents 35d1367020a3
children 8e1af9ff0e1f
rev   line source
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: 956
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: 956
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: 956
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: 956
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: 956
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: 956
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: 956
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: 0
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
1358
c71e05b4dc2e More header massaging... works great on Windows. ;-)
Sam Lantinga <slouken@libsdl.org>
parents: 1338
diff changeset
26 #include "SDL_timer.h"
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
27 #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
28 #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
29 #include "../SDL_audio_c.h"
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
30 #include "SDL_artsaudio.h"
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
31
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
32 #ifdef SDL_AUDIO_DRIVER_ARTS_DYNAMIC
294
d2d48e10f370 Added a new header file: SDL_loadso.h
Sam Lantinga <slouken@libsdl.org>
parents: 252
diff changeset
33 #include "SDL_name.h"
d2d48e10f370 Added a new header file: SDL_loadso.h
Sam Lantinga <slouken@libsdl.org>
parents: 252
diff changeset
34 #include "SDL_loadso.h"
d2d48e10f370 Added a new header file: SDL_loadso.h
Sam Lantinga <slouken@libsdl.org>
parents: 252
diff changeset
35 #else
d2d48e10f370 Added a new header file: SDL_loadso.h
Sam Lantinga <slouken@libsdl.org>
parents: 252
diff changeset
36 #define SDL_NAME(X) X
d2d48e10f370 Added a new header file: SDL_loadso.h
Sam Lantinga <slouken@libsdl.org>
parents: 252
diff changeset
37 #endif
d2d48e10f370 Added a new header file: SDL_loadso.h
Sam Lantinga <slouken@libsdl.org>
parents: 252
diff changeset
38
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
39 /* The tag name used by artsc audio */
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
40 #define ARTS_DRIVER_NAME "arts"
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
41
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
42 /* Audio driver functions */
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
43 static int ARTS_OpenDevice(_THIS, const char *devname, int iscapture);
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
44 static void ARTS_WaitDevice(_THIS);
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
45 static void ARTS_PlayDevice(_THIS);
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
46 static Uint8 *ARTS_GetDeviceBuf(_THIS);
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
47 static void ARTS_CloseDevice(_THIS);
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
48 static void ARTS_WaitDone(_THIS);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
49
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
50 #ifdef SDL_AUDIO_DRIVER_ARTS_DYNAMIC
294
d2d48e10f370 Added a new header file: SDL_loadso.h
Sam Lantinga <slouken@libsdl.org>
parents: 252
diff changeset
51
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
52 static const char *arts_library = SDL_AUDIO_DRIVER_ARTS_DYNAMIC;
294
d2d48e10f370 Added a new header file: SDL_loadso.h
Sam Lantinga <slouken@libsdl.org>
parents: 252
diff changeset
53 static void *arts_handle = NULL;
d2d48e10f370 Added a new header file: SDL_loadso.h
Sam Lantinga <slouken@libsdl.org>
parents: 252
diff changeset
54
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
55 /* !!! FIXME: I hate this SDL_NAME clutter...it makes everything so messy! */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
56 static int (*SDL_NAME(arts_init)) (void);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
57 static void (*SDL_NAME(arts_free)) (void);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
58 static arts_stream_t(*SDL_NAME(arts_play_stream)) (int rate, int bits,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
59 int channels,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
60 const char *name);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
61 static int (*SDL_NAME(arts_stream_set)) (arts_stream_t s,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
62 arts_parameter_t param, 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: 1402
diff changeset
63 static int (*SDL_NAME(arts_stream_get)) (arts_stream_t s,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
64 arts_parameter_t param);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
65 static int (*SDL_NAME(arts_write)) (arts_stream_t s, const void *buffer,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
66 int count);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
67 static void (*SDL_NAME(arts_close_stream)) (arts_stream_t s);
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
68 static void (*SDL_NAME(arts_close_stream)) (arts_stream_t s);
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
69 static const char *(*SDL_NAME(arts_error_text)) (int errorcode);
301
fb4c4c6a2773 Fixed dynamic arts support.
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
70
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
71 #define SDL_ARTS_SYM(x) { #x, (void **) (char *) &SDL_NAME(x) }
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
72 static struct
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
73 {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
74 const char *name;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
75 void **func;
294
d2d48e10f370 Added a new header file: SDL_loadso.h
Sam Lantinga <slouken@libsdl.org>
parents: 252
diff changeset
76 } arts_functions[] = {
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
77 SDL_ARTS_SYM(arts_init),
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
78 SDL_ARTS_SYM(arts_free),
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
79 SDL_ARTS_SYM(arts_play_stream),
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
80 SDL_ARTS_SYM(arts_stream_set),
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
81 SDL_ARTS_SYM(arts_stream_get),
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
82 SDL_ARTS_SYM(arts_write),
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
83 SDL_ARTS_SYM(arts_close_stream),
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
84 SDL_ARTS_SYM(arts_error_text),
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
85 };
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
86 #undef SDL_ARTS_SYM
294
d2d48e10f370 Added a new header file: SDL_loadso.h
Sam Lantinga <slouken@libsdl.org>
parents: 252
diff changeset
87
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
88 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
89 UnloadARTSLibrary()
294
d2d48e10f370 Added a new header file: SDL_loadso.h
Sam Lantinga <slouken@libsdl.org>
parents: 252
diff changeset
90 {
3813
92f7304e50ff Removed duplicate state from arts driver.
Ryan C. Gordon <icculus@icculus.org>
parents: 3812
diff changeset
91 if (arts_handle != 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: 1402
diff changeset
92 SDL_UnloadObject(arts_handle);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
93 arts_handle = NULL;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
94 }
294
d2d48e10f370 Added a new header file: SDL_loadso.h
Sam Lantinga <slouken@libsdl.org>
parents: 252
diff changeset
95 }
d2d48e10f370 Added a new header file: SDL_loadso.h
Sam Lantinga <slouken@libsdl.org>
parents: 252
diff changeset
96
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
97 static int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
98 LoadARTSLibrary(void)
294
d2d48e10f370 Added a new header file: SDL_loadso.h
Sam Lantinga <slouken@libsdl.org>
parents: 252
diff changeset
99 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
100 int i, retval = -1;
294
d2d48e10f370 Added a new header file: SDL_loadso.h
Sam Lantinga <slouken@libsdl.org>
parents: 252
diff changeset
101
3813
92f7304e50ff Removed duplicate state from arts driver.
Ryan C. Gordon <icculus@icculus.org>
parents: 3812
diff changeset
102 if (arts_handle == NULL) {
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
103 arts_handle = SDL_LoadObject(arts_library);
3813
92f7304e50ff Removed duplicate state from arts driver.
Ryan C. Gordon <icculus@icculus.org>
parents: 3812
diff changeset
104 if (arts_handle != NULL) {
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
105 retval = 0;
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
106 for (i = 0; i < SDL_arraysize(arts_functions); ++i) {
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
107 *arts_functions[i].func =
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
108 SDL_LoadFunction(arts_handle, arts_functions[i].name);
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
109 if (!*arts_functions[i].func) {
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
110 retval = -1;
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
111 UnloadARTSLibrary();
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
112 break;
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
113 }
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
114 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
115 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
116 }
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
117
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
118 return retval;
294
d2d48e10f370 Added a new header file: SDL_loadso.h
Sam Lantinga <slouken@libsdl.org>
parents: 252
diff changeset
119 }
d2d48e10f370 Added a new header file: SDL_loadso.h
Sam Lantinga <slouken@libsdl.org>
parents: 252
diff changeset
120
d2d48e10f370 Added a new header file: SDL_loadso.h
Sam Lantinga <slouken@libsdl.org>
parents: 252
diff changeset
121 #else
d2d48e10f370 Added a new header file: SDL_loadso.h
Sam Lantinga <slouken@libsdl.org>
parents: 252
diff changeset
122
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
123 static void
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
124 UnloadARTSLibrary()
294
d2d48e10f370 Added a new header file: SDL_loadso.h
Sam Lantinga <slouken@libsdl.org>
parents: 252
diff changeset
125 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
126 return;
294
d2d48e10f370 Added a new header file: SDL_loadso.h
Sam Lantinga <slouken@libsdl.org>
parents: 252
diff changeset
127 }
d2d48e10f370 Added a new header file: SDL_loadso.h
Sam Lantinga <slouken@libsdl.org>
parents: 252
diff changeset
128
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
129 static int
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
130 LoadARTSLibrary(void)
294
d2d48e10f370 Added a new header file: SDL_loadso.h
Sam Lantinga <slouken@libsdl.org>
parents: 252
diff changeset
131 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
132 return 0;
294
d2d48e10f370 Added a new header file: SDL_loadso.h
Sam Lantinga <slouken@libsdl.org>
parents: 252
diff changeset
133 }
d2d48e10f370 Added a new header file: SDL_loadso.h
Sam Lantinga <slouken@libsdl.org>
parents: 252
diff changeset
134
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
135 #endif /* SDL_AUDIO_DRIVER_ARTS_DYNAMIC */
294
d2d48e10f370 Added a new header file: SDL_loadso.h
Sam Lantinga <slouken@libsdl.org>
parents: 252
diff changeset
136
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
137 /* Audio driver bootstrap functions */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
138
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
139 static int
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
140 ARTS_Available(void)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
141 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
142 int available = 0;
294
d2d48e10f370 Added a new header file: SDL_loadso.h
Sam Lantinga <slouken@libsdl.org>
parents: 252
diff changeset
143
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
144 if (LoadARTSLibrary() == 0) {
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
145 if (SDL_NAME(arts_init) () == 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: 1402
diff changeset
146 #define ARTS_CRASH_HACK /* Play a stream so aRts doesn't crash */
929
03fb90fc135e Date: Mon, 05 Jul 2004 14:37:59 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 864
diff changeset
147 #ifdef ARTS_CRASH_HACK
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
148 arts_stream_t stream;
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
149 stream = SDL_NAME(arts_play_stream) (44100, 16, 2, "SDL");
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
150 SDL_NAME(arts_write) (stream, "", 0);
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
151 SDL_NAME(arts_close_stream) (stream);
929
03fb90fc135e Date: Mon, 05 Jul 2004 14:37:59 +0200
Sam Lantinga <slouken@libsdl.org>
parents: 864
diff changeset
152 #endif
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
153 available = 1;
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
154 SDL_NAME(arts_free) ();
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
155 }
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
156 UnloadARTSLibrary();
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
157 }
474
583a07ab5444 Doh! Patch by Joel Ray Holveck
Sam Lantinga <slouken@libsdl.org>
parents: 301
diff changeset
158
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
159 return available;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
160 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
161
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
162
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
163 static int
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
164 ARTS_Init(SDL_AudioDriverImpl *impl)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
165 {
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
166 /* Set the function pointers */
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
167 impl->OpenDevice = ARTS_OpenDevice;
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
168 impl->PlayDevice = ARTS_PlayDevice;
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
169 impl->WaitDevice = ARTS_WaitDevice;
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
170 impl->GetDeviceBuf = ARTS_GetDeviceBuf;
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
171 impl->CloseDevice = ARTS_CloseDevice;
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
172 impl->WaitDone = ARTS_WaitDone;
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
173 impl->OnlyHasDefaultOutputDevice = 1;
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
174
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
175 return 1;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
176 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
177
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
178
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
179 AudioBootStrap ARTS_bootstrap = {
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
180 ARTS_DRIVER_NAME, "Analog RealTime Synthesizer",
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
181 ARTS_Available, ARTS_Init, 0
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
182 };
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
183
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
184
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
185 /* This function waits until it is possible to write a full sound buffer */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
186 static void
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
187 ARTS_WaitDevice(_THIS)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
188 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
189 Sint32 ticks;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
190
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
191 /* Check to see if the thread-parent process is still alive */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
192 {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
193 static int cnt = 0;
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
194 /* Note that this only works with thread implementations
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
195 that use a different process id for each thread.
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
196 */
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
197 /* Check every 10 loops */
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
198 if (this->hidden->parent && (((++cnt) % 10) == 0)) {
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
199 if (kill(this->hidden->parent, 0) < 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: 1402
diff changeset
200 this->enabled = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
201 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
202 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
203 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
204
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
205 /* Use timer for general audio synchronization */
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
206 ticks = ((Sint32) (this->hidden->next_frame-SDL_GetTicks())) - FUDGE_TICKS;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
207 if (ticks > 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
208 SDL_Delay(ticks);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
209 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
210 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
211
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
212 static void
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
213 ARTS_PlayDevice(_THIS)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
214 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
215 /* Write the audio data */
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
216 int written = SDL_NAME(arts_write) (
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
217 this->hidden->stream,
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
218 this->hidden->mixbuf,
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
219 this->hidden->mixlen);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
220
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
221 /* If timer synchronization is enabled, set the next write frame */
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
222 if (this->hidden->frame_ticks) {
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
223 this->hidden->next_frame += this->hidden->frame_ticks;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
224 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
225
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
226 /* If we couldn't write, assume fatal error for now */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
227 if (written < 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
228 this->enabled = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
229 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
230 #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: 1402
diff changeset
231 fprintf(stderr, "Wrote %d bytes of audio data\n", written);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
232 #endif
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
233 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
234
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
235 static void
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
236 ARTS_WaitDone(_THIS)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
237 {
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
238 /* !!! FIXME: camp here until buffer drains... SDL_Delay(???); */
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
239 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
240
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
241
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
242 static Uint8 *
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
243 ARTS_GetDeviceBuf(_THIS)
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
244 {
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
245 return (this->hidden->mixbuf);
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
246 }
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
247
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
248
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
249 static void
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
250 ARTS_CloseDevice(_THIS)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
251 {
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
252 if (this->hidden != NULL) {
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
253 if (this->hidden->mixbuf != NULL) {
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
254 SDL_FreeAudioMem(this->hidden->mixbuf);
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
255 this->hidden->mixbuf = NULL;
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
256 }
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
257 if (this->hidden->stream) {
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
258 SDL_NAME(arts_close_stream) (this->hidden->stream);
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
259 this->hidden->stream = 0;
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
260 }
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
261 SDL_NAME(arts_free) ();
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
262 SDL_free(this->hidden);
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
263 this->hidden = 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: 1402
diff changeset
264 }
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
265 UnloadARTSLibrary();
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
266 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
267
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
268
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
269 static int
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
270 ARTS_OpenDevice(_THIS, const char *devname, int iscapture)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
271 {
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
272 int rc = 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: 1402
diff changeset
273 int bits, frag_spec;
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
274 SDL_AudioFormat test_format, format;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
275
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
276 /* Initialize all variables that we clean on shutdown */
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
277 this->hidden = (struct SDL_PrivateAudioData *)
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
278 SDL_malloc((sizeof *this->hidden));
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
279 if (this->hidden == NULL) {
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
280 SDL_OutOfMemory();
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
281 return 0;
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
282 }
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
283 SDL_memset(this->hidden, 0, (sizeof *this->hidden));
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
284
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
285 if (LoadARTSLibrary() < 0) {
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
286 ARTS_CloseDevice(this);
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
287 SDL_SetError("ARTS: failed to load library: %s", SDL_GetError());
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
288 return 0;
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
289 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
290
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
291 /* 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: 1402
diff changeset
292 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: 1402
diff changeset
293 bits = 0;
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
294 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: 1402
diff changeset
295 !format && test_format;) {
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
296 #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: 1402
diff changeset
297 fprintf(stderr, "Trying format 0x%4.4x\n", test_format);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
298 #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: 1402
diff changeset
299 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: 1402
diff changeset
300 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: 1402
diff changeset
301 bits = 8;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
302 format = 1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
303 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
304 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: 1402
diff changeset
305 bits = 16;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
306 format = 1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
307 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
308 default:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
309 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: 1402
diff changeset
310 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
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: 1402
diff changeset
312 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: 1402
diff changeset
313 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: 1402
diff changeset
314 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
315 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
316 if (format == 0) {
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
317 ARTS_CloseDevice(this);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
318 SDL_SetError("Couldn't find any hardware audio formats");
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
319 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: 1402
diff changeset
320 }
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
321 this->spec.format = test_format;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
322
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
323 if ((rc = SDL_NAME(arts_init) ()) != 0) {
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
324 ARTS_CloseDevice(this);
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
325 SDL_SetError( "Unable to initialize ARTS: %s",
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
326 SDL_NAME(arts_error_text)(rc) );
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
327 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: 1402
diff changeset
328 }
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
329 this->hidden->stream = SDL_NAME(arts_play_stream) (
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
330 this->spec.freq,
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
331 bits, this->spec.channels,
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
332 "SDL");
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
333
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
334 /* Calculate the final parameters for this audio specification */
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
335 SDL_CalculateAudioSpec(&this->spec);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
336
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
337 /* Determine the power of two of the fragment size */
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
338 for (frag_spec = 0; (0x01 << frag_spec) < this->spec.size; ++frag_spec);
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
339 if ((0x01 << frag_spec) != this->spec.size) {
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
340 ARTS_CloseDevice(this);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
341 SDL_SetError("Fragment size must be a power of two");
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
342 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: 1402
diff changeset
343 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
344 frag_spec |= 0x00020000; /* two fragments, for low latency */
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
345
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
346 #ifdef ARTS_P_PACKET_SETTINGS
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
347 SDL_NAME(arts_stream_set) (this->hidden->stream,
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
348 ARTS_P_PACKET_SETTINGS, frag_spec);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
349 #else
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
350 SDL_NAME(arts_stream_set) (this->hidden->stream, ARTS_P_PACKET_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: 1402
diff changeset
351 frag_spec & 0xffff);
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
352 SDL_NAME(arts_stream_set) (this->hidden->stream, ARTS_P_PACKET_COUNT,
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
353 frag_spec >> 16);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
354 #endif
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
355 this->spec.size = SDL_NAME(arts_stream_get) (this->hidden->stream,
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
356 ARTS_P_PACKET_SIZE);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
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: 1402
diff changeset
358 /* Allocate mixing buffer */
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
359 this->hidden->mixlen = this->spec.size;
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
360 this->hidden->mixbuf = (Uint8 *) SDL_AllocAudioMem(this->hidden->mixlen);
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
361 if (this->hidden->mixbuf == NULL) {
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
362 ARTS_CloseDevice(this);
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
363 SDL_OutOfMemory();
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
364 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: 1402
diff changeset
365 }
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
366 SDL_memset(this->hidden->mixbuf, this->spec.silence, this->spec.size);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
367
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
368 /* Get the parent process id (we're the parent of the audio thread) */
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
369 this->hidden->parent = getpid();
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
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: 1402
diff changeset
371 /* We're ready to rock and roll. :-) */
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
372 return 1;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
373 }
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
374
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
375 /* vi: set ts=4 sw=4 expandtab: */