annotate src/audio/baudio/SDL_beaudio.cc @ 3788:7006b176ef4f SDL-ryan-multiple-audio-device

More work on the 1.3 CoreAudio code.
author Ryan C. Gordon <icculus@icculus.org>
date Tue, 03 Oct 2006 18:32:34 +0000
parents adf732f1f016
children 5f6550e5184f b225d9820ee3
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: 252
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: 252
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: 252
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: 252
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: 252
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: 252
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: 252
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: 114
diff changeset
20 slouken@libsdl.org
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
21 */
1403
376665398b25 Catch the C++ and Objective C sources too...
Sam Lantinga <slouken@libsdl.org>
parents: 1367
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 the audio stream on BeOS */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
25
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
26 #include <SoundPlayer.h>
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
27
1367
e440d5c488c1 Fixes for BeOS and Solaris builds
Sam Lantinga <slouken@libsdl.org>
parents: 1361
diff changeset
28 #include "../../main/beos/SDL_BeApp.h"
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
29
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
30 extern "C"
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
31 {
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
32
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
33 #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
34 #include "../SDL_audio_c.h"
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
35 #include "../SDL_sysaudio.h"
1367
e440d5c488c1 Fixes for BeOS and Solaris builds
Sam Lantinga <slouken@libsdl.org>
parents: 1361
diff changeset
36 #include "../../thread/beos/SDL_systhread_c.h"
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
37 #include "SDL_beaudio.h"
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
38
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
39
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
40 /* Audio driver functions */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
41 static int BE_OpenAudio(_THIS, SDL_AudioSpec * spec);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
42 static void BE_WaitAudio(_THIS);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
43 static void BE_PlayAudio(_THIS);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
44 static Uint8 *BE_GetAudioBuf(_THIS);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
45 static void BE_CloseAudio(_THIS);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
46
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
47 /* Audio driver bootstrap functions */
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
48
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
49 static int Audio_Available(void)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
50 {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
51 return (1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
52 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
53
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
54 static void Audio_DeleteDevice(SDL_AudioDevice * device)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
55 {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
56 SDL_free(device->hidden);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
57 SDL_free(device);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
58 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
59
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
60 static SDL_AudioDevice *Audio_CreateDevice(int devindex)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
61 {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
62 SDL_AudioDevice *device;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
63
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
64 /* Initialize all variables that we clean on shutdown */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
65 device = (SDL_AudioDevice *) SDL_malloc(sizeof(SDL_AudioDevice));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
66 if (device) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
67 SDL_memset(device, 0, (sizeof *device));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
68 device->hidden = (struct SDL_PrivateAudioData *)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
69 SDL_malloc((sizeof *device->hidden));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
70 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
71 if ((device == NULL) || (device->hidden == NULL)) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
72 SDL_OutOfMemory();
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
73 if (device) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
74 SDL_free(device);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
75 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
76 return (0);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
77 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
78 SDL_memset(device->hidden, 0, (sizeof *device->hidden));
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
79
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
80 /* Set the function pointers */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
81 device->OpenAudio = BE_OpenAudio;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
82 device->WaitAudio = BE_WaitAudio;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
83 device->PlayAudio = BE_PlayAudio;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
84 device->GetAudioBuf = BE_GetAudioBuf;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
85 device->CloseAudio = BE_CloseAudio;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
86
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
87 device->free = Audio_DeleteDevice;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
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: 1403
diff changeset
89 return device;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
90 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
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: 1403
diff changeset
92 AudioBootStrap BAUDIO_bootstrap = {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
93 "baudio", "BeOS BSoundPlayer",
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
94 Audio_Available, Audio_CreateDevice
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
95 };
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
96
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
97 /* The BeOS callback for handling the audio 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: 1403
diff changeset
98 static void FillSound(void *device, void *stream, size_t len,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
99 const media_raw_audio_format & format)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
100 {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
101 SDL_AudioDevice *audio = (SDL_AudioDevice *) device;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
102
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
103 /* Silence the buffer, since it's ours */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
104 SDL_memset(stream, audio->spec.silence, len);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
105
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
106 /* Only do soemthing if audio is enabled */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
107 if (!audio->enabled)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
108 return;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
109
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
110 if (!audio->paused) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
111 if (audio->convert.needed) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
112 SDL_mutexP(audio->mixer_lock);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
113 (*audio->spec.callback) (audio->spec.userdata,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
114 (Uint8 *) audio->convert.buf,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
115 audio->convert.len);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
116 SDL_mutexV(audio->mixer_lock);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
117 SDL_ConvertAudio(&audio->convert);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
118 SDL_memcpy(stream, audio->convert.buf,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
119 audio->convert.len_cvt);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
120 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
121 SDL_mutexP(audio->mixer_lock);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
122 (*audio->spec.callback) (audio->spec.userdata,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
123 (Uint8 *) stream, len);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
124 SDL_mutexV(audio->mixer_lock);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
125 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
126 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
127 return;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
128 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
129
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
130 /* Dummy functions -- we don't use thread-based 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: 1403
diff changeset
131 void BE_WaitAudio(_THIS)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
132 {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
133 return;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
134 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
135 void BE_PlayAudio(_THIS)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
136 {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
137 return;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
138 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
139 Uint8 *BE_GetAudioBuf(_THIS)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
140 {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
141 return (NULL);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
142 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
143
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
144 void BE_CloseAudio(_THIS)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
145 {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
146 if (audio_obj) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
147 audio_obj->Stop();
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
148 delete audio_obj;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
149 audio_obj = NULL;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
150 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
151
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
152 /* Quit the Be Application, if there's nothing left to do */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
153 SDL_QuitBeApp();
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
154 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
155
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
156 int BE_OpenAudio(_THIS, SDL_AudioSpec * spec)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
157 {
2001
02108bfd6550 Actually, my silly logic bug was actually correct. :/
Ryan C. Gordon <icculus@icculus.org>
parents: 1998
diff changeset
158 int valid_datatype = 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: 1403
diff changeset
159 media_raw_audio_format format;
1997
46319c67b3d7 Added int32 and float32 support (and some others!) to BeOS audio backend.
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
160 SDL_AudioFormat test_format = SDL_FirstAudioFormat(spec->format);
46319c67b3d7 Added int32 and float32 support (and some others!) to BeOS audio backend.
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
161
46319c67b3d7 Added int32 and float32 support (and some others!) to BeOS audio backend.
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
162 /* Parse the audio format and fill the Be raw audio format */
2043
adf732f1f016 Formatting update
Sam Lantinga <slouken@libsdl.org>
parents: 2001
diff changeset
163 memset(&format, '\0', sizeof(media_raw_audio_format));
1997
46319c67b3d7 Added int32 and float32 support (and some others!) to BeOS audio backend.
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
164 format.byte_order = B_MEDIA_LITTLE_ENDIAN;
46319c67b3d7 Added int32 and float32 support (and some others!) to BeOS audio backend.
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
165 format.frame_rate = (float) spec->freq;
46319c67b3d7 Added int32 and float32 support (and some others!) to BeOS audio backend.
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
166 format.channel_count = spec->channels; /* !!! FIXME: support > 2? */
2001
02108bfd6550 Actually, my silly logic bug was actually correct. :/
Ryan C. Gordon <icculus@icculus.org>
parents: 1998
diff changeset
167 while ((!valid_datatype) && (test_format)) {
02108bfd6550 Actually, my silly logic bug was actually correct. :/
Ryan C. Gordon <icculus@icculus.org>
parents: 1998
diff changeset
168 valid_datatype = 1;
1997
46319c67b3d7 Added int32 and float32 support (and some others!) to BeOS audio backend.
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
169 spec->format = test_format;
46319c67b3d7 Added int32 and float32 support (and some others!) to BeOS audio backend.
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
170 switch (test_format) {
2043
adf732f1f016 Formatting update
Sam Lantinga <slouken@libsdl.org>
parents: 2001
diff changeset
171 case AUDIO_S8:
adf732f1f016 Formatting update
Sam Lantinga <slouken@libsdl.org>
parents: 2001
diff changeset
172 format.format = media_raw_audio_format::B_AUDIO_CHAR;
adf732f1f016 Formatting update
Sam Lantinga <slouken@libsdl.org>
parents: 2001
diff changeset
173 break;
1997
46319c67b3d7 Added int32 and float32 support (and some others!) to BeOS audio backend.
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
174
2043
adf732f1f016 Formatting update
Sam Lantinga <slouken@libsdl.org>
parents: 2001
diff changeset
175 case AUDIO_U8:
adf732f1f016 Formatting update
Sam Lantinga <slouken@libsdl.org>
parents: 2001
diff changeset
176 format.format = media_raw_audio_format::B_AUDIO_UCHAR;
adf732f1f016 Formatting update
Sam Lantinga <slouken@libsdl.org>
parents: 2001
diff changeset
177 break;
1997
46319c67b3d7 Added int32 and float32 support (and some others!) to BeOS audio backend.
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
178
2043
adf732f1f016 Formatting update
Sam Lantinga <slouken@libsdl.org>
parents: 2001
diff changeset
179 case AUDIO_S16LSB:
adf732f1f016 Formatting update
Sam Lantinga <slouken@libsdl.org>
parents: 2001
diff changeset
180 format.format = media_raw_audio_format::B_AUDIO_SHORT;
adf732f1f016 Formatting update
Sam Lantinga <slouken@libsdl.org>
parents: 2001
diff changeset
181 break;
1997
46319c67b3d7 Added int32 and float32 support (and some others!) to BeOS audio backend.
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
182
2043
adf732f1f016 Formatting update
Sam Lantinga <slouken@libsdl.org>
parents: 2001
diff changeset
183 case AUDIO_S16MSB:
adf732f1f016 Formatting update
Sam Lantinga <slouken@libsdl.org>
parents: 2001
diff changeset
184 format.format = media_raw_audio_format::B_AUDIO_SHORT;
adf732f1f016 Formatting update
Sam Lantinga <slouken@libsdl.org>
parents: 2001
diff changeset
185 format.byte_order = B_MEDIA_BIG_ENDIAN;
adf732f1f016 Formatting update
Sam Lantinga <slouken@libsdl.org>
parents: 2001
diff changeset
186 break;
1997
46319c67b3d7 Added int32 and float32 support (and some others!) to BeOS audio backend.
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
187
2043
adf732f1f016 Formatting update
Sam Lantinga <slouken@libsdl.org>
parents: 2001
diff changeset
188 case AUDIO_S32LSB:
adf732f1f016 Formatting update
Sam Lantinga <slouken@libsdl.org>
parents: 2001
diff changeset
189 format.format = media_raw_audio_format::B_AUDIO_INT;
adf732f1f016 Formatting update
Sam Lantinga <slouken@libsdl.org>
parents: 2001
diff changeset
190 break;
1997
46319c67b3d7 Added int32 and float32 support (and some others!) to BeOS audio backend.
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
191
2043
adf732f1f016 Formatting update
Sam Lantinga <slouken@libsdl.org>
parents: 2001
diff changeset
192 case AUDIO_S32MSB:
adf732f1f016 Formatting update
Sam Lantinga <slouken@libsdl.org>
parents: 2001
diff changeset
193 format.format = media_raw_audio_format::B_AUDIO_INT;
adf732f1f016 Formatting update
Sam Lantinga <slouken@libsdl.org>
parents: 2001
diff changeset
194 format.byte_order = B_MEDIA_BIG_ENDIAN;
adf732f1f016 Formatting update
Sam Lantinga <slouken@libsdl.org>
parents: 2001
diff changeset
195 break;
1997
46319c67b3d7 Added int32 and float32 support (and some others!) to BeOS audio backend.
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
196
2043
adf732f1f016 Formatting update
Sam Lantinga <slouken@libsdl.org>
parents: 2001
diff changeset
197 case AUDIO_F32LSB:
adf732f1f016 Formatting update
Sam Lantinga <slouken@libsdl.org>
parents: 2001
diff changeset
198 format.format = media_raw_audio_format::B_AUDIO_FLOAT;
adf732f1f016 Formatting update
Sam Lantinga <slouken@libsdl.org>
parents: 2001
diff changeset
199 break;
1997
46319c67b3d7 Added int32 and float32 support (and some others!) to BeOS audio backend.
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
200
2043
adf732f1f016 Formatting update
Sam Lantinga <slouken@libsdl.org>
parents: 2001
diff changeset
201 case AUDIO_F32MSB:
adf732f1f016 Formatting update
Sam Lantinga <slouken@libsdl.org>
parents: 2001
diff changeset
202 format.format = media_raw_audio_format::B_AUDIO_FLOAT;
adf732f1f016 Formatting update
Sam Lantinga <slouken@libsdl.org>
parents: 2001
diff changeset
203 format.byte_order = B_MEDIA_BIG_ENDIAN;
adf732f1f016 Formatting update
Sam Lantinga <slouken@libsdl.org>
parents: 2001
diff changeset
204 break;
1997
46319c67b3d7 Added int32 and float32 support (and some others!) to BeOS audio backend.
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
205
2043
adf732f1f016 Formatting update
Sam Lantinga <slouken@libsdl.org>
parents: 2001
diff changeset
206 default:
adf732f1f016 Formatting update
Sam Lantinga <slouken@libsdl.org>
parents: 2001
diff changeset
207 valid_datatype = 0;
adf732f1f016 Formatting update
Sam Lantinga <slouken@libsdl.org>
parents: 2001
diff changeset
208 test_format = SDL_NextAudioFormat();
adf732f1f016 Formatting update
Sam Lantinga <slouken@libsdl.org>
parents: 2001
diff changeset
209 break;
1997
46319c67b3d7 Added int32 and float32 support (and some others!) to BeOS audio backend.
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
210 }
46319c67b3d7 Added int32 and float32 support (and some others!) to BeOS audio backend.
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
211 }
46319c67b3d7 Added int32 and float32 support (and some others!) to BeOS audio backend.
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
212
46319c67b3d7 Added int32 and float32 support (and some others!) to BeOS audio backend.
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
213 format.buffer_size = spec->samples;
46319c67b3d7 Added int32 and float32 support (and some others!) to BeOS audio backend.
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
214
2043
adf732f1f016 Formatting update
Sam Lantinga <slouken@libsdl.org>
parents: 2001
diff changeset
215 if (!valid_datatype) { /* shouldn't happen, but just in case... */
1997
46319c67b3d7 Added int32 and float32 support (and some others!) to BeOS audio backend.
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
216 SDL_SetError("Unsupported audio format");
46319c67b3d7 Added int32 and float32 support (and some others!) to BeOS audio backend.
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
217 return (-1);
46319c67b3d7 Added int32 and float32 support (and some others!) to BeOS audio backend.
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
218 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
219
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
220 /* Initialize the Be Application, if it's not already started */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
221 if (SDL_InitBeApp() < 0) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
222 return (-1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
223 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
224
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
225 /* Calculate the final parameters for this audio specification */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
226 SDL_CalculateAudioSpec(spec);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
227
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
228 /* Subscribe to the audio stream (creates a new thread) */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
229 {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
230 sigset_t omask;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
231 SDL_MaskSignals(&omask);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
232 audio_obj = new BSoundPlayer(&format, "SDL Audio", FillSound,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
233 NULL, _this);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
234 SDL_UnmaskSignals(&omask);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
235 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
236 if (audio_obj->Start() == B_NO_ERROR) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
237 audio_obj->SetHasData(true);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
238 } else {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
239 SDL_SetError("Unable to start Be audio");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
240 return (-1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
241 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
242
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
243 /* We're running! */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
244 return (1);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
245 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
246
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
247 }; /* Extern C */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
248
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1403
diff changeset
249 /* vi: set ts=4 sw=4 expandtab: */