Mercurial > sdl-ios-xcode

annotate src/audio/arts/SDL_artsaudio.c @ 3812:35d1367020a3 SDL-ryan-multiple-audio-device

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Updated arts driver for 1.3 audio API.
author Ryan C. Gordon <icculus@icculus.org>
date Fri, 06 Oct 2006 02:40:02 +0000
parents 7852b5b78af5
children 92f7304e50ff
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 static int arts_loaded = 0;
d2d48e10f370 Added a new header file: SDL_loadso.h
Sam Lantinga <slouken@libsdl.org>
parents: 252
diff changeset
55
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
56 /* !!! 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
57 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
58 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
59 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
60 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
61 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
62 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
63 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
64 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
65 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
66 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
67 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
68 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
69 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
70 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
71
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
72 #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
73 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
74 {
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 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
76 void **func;
294
d2d48e10f370 Added a new header file: SDL_loadso.h
Sam Lantinga <slouken@libsdl.org>
parents: 252
diff changeset
77 } arts_functions[] = {
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
78 SDL_ARTS_SYM(arts_init),
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
79 SDL_ARTS_SYM(arts_free),
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
80 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
81 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
82 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
83 SDL_ARTS_SYM(arts_write),
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
84 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
85 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
86 };
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
87 #undef SDL_ARTS_SYM
294
d2d48e10f370 Added a new header file: SDL_loadso.h
Sam Lantinga <slouken@libsdl.org>
parents: 252
diff changeset
88
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
89 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
90 UnloadARTSLibrary()
294
d2d48e10f370 Added a new header file: SDL_loadso.h
Sam Lantinga <slouken@libsdl.org>
parents: 252
diff changeset
91 {
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 if (arts_loaded) {
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 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
94 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
95 arts_loaded = 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
96 }
294
d2d48e10f370 Added a new header file: SDL_loadso.h
Sam Lantinga <slouken@libsdl.org>
parents: 252
diff changeset
97 }
d2d48e10f370 Added a new header file: SDL_loadso.h
Sam Lantinga <slouken@libsdl.org>
parents: 252
diff changeset
98
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
99 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
100 LoadARTSLibrary(void)
294
d2d48e10f370 Added a new header file: SDL_loadso.h
Sam Lantinga <slouken@libsdl.org>
parents: 252
diff changeset
101 {
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
102 int i, retval = -1;
294
d2d48e10f370 Added a new header file: SDL_loadso.h
Sam Lantinga <slouken@libsdl.org>
parents: 252
diff changeset
103
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
104 if (!arts_loaded) {
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
105 arts_handle = SDL_LoadObject(arts_library);
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
106 if (arts_handle) {
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
107 arts_loaded = 1;
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
108 retval = 0;
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
109 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
110 *arts_functions[i].func =
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
111 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
112 if (!*arts_functions[i].func) {
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
113 retval = -1;
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
114 UnloadARTSLibrary();
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
115 break;
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
116 }
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
117 }
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 }
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
119 }
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
120
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
121 return retval;
294
d2d48e10f370 Added a new header file: SDL_loadso.h
Sam Lantinga <slouken@libsdl.org>
parents: 252
diff changeset
122 }
d2d48e10f370 Added a new header file: SDL_loadso.h
Sam Lantinga <slouken@libsdl.org>
parents: 252
diff changeset
123
d2d48e10f370 Added a new header file: SDL_loadso.h
Sam Lantinga <slouken@libsdl.org>
parents: 252
diff changeset
124 #else
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 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
127 UnloadARTSLibrary()
294
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 return;
294
d2d48e10f370 Added a new header file: SDL_loadso.h
Sam Lantinga <slouken@libsdl.org>
parents: 252
diff changeset
130 }
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 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
133 LoadARTSLibrary(void)
294
d2d48e10f370 Added a new header file: SDL_loadso.h
Sam Lantinga <slouken@libsdl.org>
parents: 252
diff changeset
134 {
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
135 return 0;
294
d2d48e10f370 Added a new header file: SDL_loadso.h
Sam Lantinga <slouken@libsdl.org>
parents: 252
diff changeset
136 }
d2d48e10f370 Added a new header file: SDL_loadso.h
Sam Lantinga <slouken@libsdl.org>
parents: 252
diff changeset
137
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
138 #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
139
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
140 /* Audio driver bootstrap functions */
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 static int
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
143 ARTS_Available(void)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
144 {
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
145 int available = 0;
294
d2d48e10f370 Added a new header file: SDL_loadso.h
Sam Lantinga <slouken@libsdl.org>
parents: 252
diff changeset
146
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
147 if (LoadARTSLibrary() == 0) {
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
148 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
149 #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
150 #ifdef ARTS_CRASH_HACK
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
151 arts_stream_t stream;
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
152 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
153 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
154 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
155 #endif
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
156 available = 1;
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
157 SDL_NAME(arts_free) ();
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
158 }
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
159 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
160 }
474
583a07ab5444 Doh! Patch by Joel Ray Holveck
Sam Lantinga <slouken@libsdl.org>
parents: 301
diff changeset
161
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
162 return available;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
163 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
164
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
165
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
166 static int
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
167 ARTS_Init(SDL_AudioDriverImpl *impl)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
168 {
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
169 /* Set the function pointers */
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
170 impl->OpenDevice = ARTS_OpenDevice;
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
171 impl->PlayDevice = ARTS_PlayDevice;
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
172 impl->WaitDevice = ARTS_WaitDevice;
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
173 impl->GetDeviceBuf = ARTS_GetDeviceBuf;
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
174 impl->CloseDevice = ARTS_CloseDevice;
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
175 impl->WaitDone = ARTS_WaitDone;
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
176 impl->OnlyHasDefaultOutputDevice = 1;
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
177
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
178 return 1;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
179 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
180
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
181
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
182 AudioBootStrap ARTS_bootstrap = {
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
183 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
184 ARTS_Available, ARTS_Init, 0
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
185 };
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
186
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
187
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
188 /* 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
189 static void
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
190 ARTS_WaitDevice(_THIS)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
191 {
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
192 Sint32 ticks;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
193
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
194 /* 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
195 {
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 static int cnt = 0;
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
197 /* 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
198 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
199 */
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
200 /* Check every 10 loops */
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
201 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
202 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
203 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
204 }
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 }
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
206 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
207
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
208 /* 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
209 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
210 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
211 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
212 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
213 }
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 static void
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
216 ARTS_PlayDevice(_THIS)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
217 {
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
218 /* Write the audio data */
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
219 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
220 this->hidden->stream,
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
221 this->hidden->mixbuf,
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
222 this->hidden->mixlen);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
223
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 /* 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
225 if (this->hidden->frame_ticks) {
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
226 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
227 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
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: 1402
diff changeset
229 /* 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
230 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
231 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
232 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
233 #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
234 fprintf(stderr, "Wrote %d bytes of audio data\n", written);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
235 #endif
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
236 }
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 static void
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
239 ARTS_WaitDone(_THIS)
0
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 /* !!! FIXME: camp here until buffer drains... SDL_Delay(???); */
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
242 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
243
3812
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 static Uint8 *
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
246 ARTS_GetDeviceBuf(_THIS)
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 return (this->hidden->mixbuf);
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
249 }
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
250
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
251
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
252 static void
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
253 ARTS_CloseDevice(_THIS)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
254 {
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
255 if (this->hidden != NULL) {
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
256 if (this->hidden->mixbuf != NULL) {
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
257 SDL_FreeAudioMem(this->hidden->mixbuf);
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
258 this->hidden->mixbuf = NULL;
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
259 }
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
260 if (this->hidden->stream) {
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
261 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
262 this->hidden->stream = 0;
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
263 }
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
264 SDL_NAME(arts_free) ();
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
265 SDL_free(this->hidden);
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
266 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
267 }
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
268 UnloadARTSLibrary();
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
269 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
270
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
271
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
272 static int
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
273 ARTS_OpenDevice(_THIS, const char *devname, int iscapture)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
274 {
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
275 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
276 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
277 SDL_AudioFormat test_format, format;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
278
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
279 /* 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
280 this->hidden = (struct SDL_PrivateAudioData *)
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
281 SDL_malloc((sizeof *this->hidden));
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
282 if (this->hidden == NULL) {
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
283 SDL_OutOfMemory();
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
284 return 0;
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
285 }
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
286 SDL_memset(this->hidden, 0, (sizeof *this->hidden));
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
287
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
288 if (LoadARTSLibrary() < 0) {
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
289 ARTS_CloseDevice(this);
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
290 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
291 return 0;
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
292 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
293
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
294 /* 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
295 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
296 bits = 0;
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
297 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
298 !format && test_format;) {
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
299 #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
300 fprintf(stderr, "Trying format 0x%4.4x\n", test_format);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
301 #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
302 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
303 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
304 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
305 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
306 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
307 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
308 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
309 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
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 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
312 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
313 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
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 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
316 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
317 }
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 }
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
319 if (format == 0) {
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
320 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
321 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
322 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
323 }
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
324 this->spec.format = test_format;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
325
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
326 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
327 ARTS_CloseDevice(this);
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
328 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
329 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
330 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
331 }
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
332 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
333 this->spec.freq,
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
334 bits, this->spec.channels,
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
335 "SDL");
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 /* 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
338 SDL_CalculateAudioSpec(&this->spec);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
339
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
340 /* 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
341 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
342 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
343 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
344 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
345 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
346 }
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
347 frag_spec |= 0x00020000; /* two fragments, for low latency */
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
348
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
349 #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
350 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
351 ARTS_P_PACKET_SETTINGS, frag_spec);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
352 #else
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
353 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
354 frag_spec & 0xffff);
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
355 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
356 frag_spec >> 16);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
357 #endif
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
358 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
359 ARTS_P_PACKET_SIZE);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
360
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
361 /* Allocate mixing buffer */
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
362 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
363 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
364 if (this->hidden->mixbuf == NULL) {
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
365 ARTS_CloseDevice(this);
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
366 SDL_OutOfMemory();
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
367 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
368 }
3812
35d1367020a3 Updated arts driver for 1.3 audio API.
Ryan C. Gordon <icculus@icculus.org>
parents: 3809
diff changeset
369 SDL_memset(this->hidden->mixbuf, this->spec.silence, this->spec.size);
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 /* 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
372 this->hidden->parent = getpid();
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 /* 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
375 return 1;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
376 }
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
377
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
378 /* vi: set ts=4 sw=4 expandtab: */