Mercurial > sdl-ios-xcode

annotate src/audio/macrom/SDL_romaudio.c @ 2655:b8e736c8a5a8 gsoc2008_audio_resampling

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Added beginnings of resampling code.
author Aaron Wishnick <schnarf@gmail.com>
date Wed, 18 Jun 2008 04:51:10 +0000
parents 866052b01ee5
children 79c1bd651f04
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: 1135
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: 1135
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: 1135
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: 1135
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: 1135
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: 1135
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: 1135
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: 47
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: 1361
diff changeset
22 #include "SDL_config.h"
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
23
2049
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2004
diff changeset
24 /* This should work on PowerPC and Intel Mac OS X, and Carbonized Mac OS 9. */
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2004
diff changeset
25
1133
609c060fd2a2 The MacOSX Carbon/Cocoa/X11 all in one library patch. Relevant emails:
Ryan C. Gordon <icculus@icculus.org>
parents: 769
diff changeset
26 #if defined(__APPLE__) && defined(__MACH__)
2049
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2004
diff changeset
27 # define SDL_MACOS_NAME "Mac OS X"
1133
609c060fd2a2 The MacOSX Carbon/Cocoa/X11 all in one library patch. Relevant emails:
Ryan C. Gordon <icculus@icculus.org>
parents: 769
diff changeset
28 # include <Carbon/Carbon.h>
609c060fd2a2 The MacOSX Carbon/Cocoa/X11 all in one library patch. Relevant emails:
Ryan C. Gordon <icculus@icculus.org>
parents: 769
diff changeset
29 #elif TARGET_API_MAC_CARBON && (UNIVERSAL_INTERFACES_VERSION > 0x0335)
2049
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2004
diff changeset
30 # define SDL_MACOS_NAME "Mac OS 9"
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
31 # include <Carbon.h>
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
32 #else
2049
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2004
diff changeset
33 # define SDL_MACOS_NAME "Mac OS 9"
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
34 # include <Sound.h> /* SoundManager interface */
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
35 # include <Gestalt.h>
323
b7e8038e40ae The audio lock and unlock functions are now a part of the driver.
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
36 # include <DriverServices.h>
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
37 #endif
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
38
1133
609c060fd2a2 The MacOSX Carbon/Cocoa/X11 all in one library patch. Relevant emails:
Ryan C. Gordon <icculus@icculus.org>
parents: 769
diff changeset
39 #if !defined(NewSndCallBackUPP) && (UNIVERSAL_INTERFACES_VERSION < 0x0335)
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
40 #if !defined(NewSndCallBackProc) /* avoid circular redefinition... */
1133
609c060fd2a2 The MacOSX Carbon/Cocoa/X11 all in one library patch. Relevant emails:
Ryan C. Gordon <icculus@icculus.org>
parents: 769
diff changeset
41 #define NewSndCallBackUPP NewSndCallBackProc
609c060fd2a2 The MacOSX Carbon/Cocoa/X11 all in one library patch. Relevant emails:
Ryan C. Gordon <icculus@icculus.org>
parents: 769
diff changeset
42 #endif
1135
cf6133247d34 Mac Classic and CodeWarrior patches.
Ryan C. Gordon <icculus@icculus.org>
parents: 1133
diff changeset
43 #if !defined(NewSndCallBackUPP)
cf6133247d34 Mac Classic and CodeWarrior patches.
Ryan C. Gordon <icculus@icculus.org>
parents: 1133
diff changeset
44 #define NewSndCallBackUPP NewSndCallBackProc
cf6133247d34 Mac Classic and CodeWarrior patches.
Ryan C. Gordon <icculus@icculus.org>
parents: 1133
diff changeset
45 #endif
1133
609c060fd2a2 The MacOSX Carbon/Cocoa/X11 all in one library patch. Relevant emails:
Ryan C. Gordon <icculus@icculus.org>
parents: 769
diff changeset
46 #endif
609c060fd2a2 The MacOSX Carbon/Cocoa/X11 all in one library patch. Relevant emails:
Ryan C. Gordon <icculus@icculus.org>
parents: 769
diff changeset
47
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
48 #include "SDL_audio.h"
1361
19418e4422cb New configure-based build system. Still work in progress, but much improved
Sam Lantinga <slouken@libsdl.org>
parents: 1358
diff changeset
49 #include "../SDL_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
50 #include "../SDL_sysaudio.h"
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
51 #include "SDL_romaudio.h"
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
52
323
b7e8038e40ae The audio lock and unlock functions are now a part of the driver.
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
53 #pragma options align=power
b7e8038e40ae The audio lock and unlock functions are now a part of the driver.
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
54
b7e8038e40ae The audio lock and unlock functions are now a part of the driver.
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
55 static volatile SInt32 audio_is_locked = 0;
b7e8038e40ae The audio lock and unlock functions are now a part of the driver.
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
56 static volatile SInt32 need_to_mix = 0;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
57
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
58 static UInt8 *buffer[2];
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
59 static volatile UInt32 running = 0;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
60 static CmpSoundHeader header;
323
b7e8038e40ae The audio lock and unlock functions are now a part of the driver.
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
61 static volatile Uint32 fill_me = 0;
b7e8038e40ae The audio lock and unlock functions are now a part of the driver.
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
62
2049
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2004
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: 1621
diff changeset
64 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: 1621
diff changeset
65 mix_buffer(SDL_AudioDevice * audio, UInt8 * buffer)
323
b7e8038e40ae The audio lock and unlock functions are now a part of the driver.
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
66 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
67 if (!audio->paused) {
1402
d910939febfa Use consistent identifiers for the various platforms we support.
Sam Lantinga <slouken@libsdl.org>
parents: 1361
diff changeset
68 #ifdef __MACOSX__
348
25809353f877 Re-added MacOS X audio locking
Sam Lantinga <slouken@libsdl.org>
parents: 324
diff changeset
69 SDL_mutexP(audio->mixer_lock);
25809353f877 Re-added MacOS X audio locking
Sam Lantinga <slouken@libsdl.org>
parents: 324
diff changeset
70 #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: 1621
diff changeset
71 if (audio->convert.needed) {
348
25809353f877 Re-added MacOS X audio locking
Sam Lantinga <slouken@libsdl.org>
parents: 324
diff changeset
72 audio->spec.callback(audio->spec.userdata,
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
73 (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: 1621
diff changeset
74 audio->convert.len);
348
25809353f877 Re-added MacOS X audio locking
Sam Lantinga <slouken@libsdl.org>
parents: 324
diff changeset
75 SDL_ConvertAudio(&audio->convert);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
76 if (audio->convert.len_cvt != audio->spec.size) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
77 /* Uh oh... probably crashes here */ ;
323
b7e8038e40ae The audio lock and unlock functions are now a part of the driver.
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
78 }
1336
3692456e7b0f Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents: 1312
diff changeset
79 SDL_memcpy(buffer, audio->convert.buf, audio->convert.len_cvt);
323
b7e8038e40ae The audio lock and unlock functions are now a part of the driver.
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
80 } else {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
81 audio->spec.callback(audio->spec.userdata, buffer,
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
82 audio->spec.size);
323
b7e8038e40ae The audio lock and unlock functions are now a part of the driver.
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
83 }
1402
d910939febfa Use consistent identifiers for the various platforms we support.
Sam Lantinga <slouken@libsdl.org>
parents: 1361
diff changeset
84 #ifdef __MACOSX__
348
25809353f877 Re-added MacOS X audio locking
Sam Lantinga <slouken@libsdl.org>
parents: 324
diff changeset
85 SDL_mutexV(audio->mixer_lock);
25809353f877 Re-added MacOS X audio locking
Sam Lantinga <slouken@libsdl.org>
parents: 324
diff changeset
86 #endif
323
b7e8038e40ae The audio lock and unlock functions are now a part of the driver.
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
87 }
b7e8038e40ae The audio lock and unlock functions are now a part of the driver.
Sam Lantinga <slouken@libsdl.org>
parents: 297
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: 1621
diff changeset
89 DecrementAtomic((SInt32 *) & need_to_mix);
323
b7e8038e40ae The audio lock and unlock functions are now a part of the driver.
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
90 }
b7e8038e40ae The audio lock and unlock functions are now a part of the driver.
Sam Lantinga <slouken@libsdl.org>
parents: 297
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: 1621
diff changeset
92 static void
2049
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2004
diff changeset
93 SNDMGR_LockDevice(_THIS)
323
b7e8038e40ae The audio lock and unlock functions are now a part of the driver.
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
94 {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
95 IncrementAtomic((SInt32 *) & audio_is_locked);
323
b7e8038e40ae The audio lock and unlock functions are now a part of the driver.
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
96 }
b7e8038e40ae The audio lock and unlock functions are now a part of the driver.
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
97
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
98 static void
2049
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2004
diff changeset
99 SNDMGR_UnlockDevice(_THIS)
323
b7e8038e40ae The audio lock and unlock functions are now a part of the driver.
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
100 {
b7e8038e40ae The audio lock and unlock functions are now a part of the driver.
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
101 SInt32 oldval;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
102
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
103 oldval = DecrementAtomic((SInt32 *) & audio_is_locked);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
104 if (oldval != 1) /* != 1 means audio is still locked. */
323
b7e8038e40ae The audio lock and unlock functions are now a part of the driver.
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
105 return;
b7e8038e40ae The audio lock and unlock functions are now a part of the driver.
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
106
b7e8038e40ae The audio lock and unlock functions are now a part of the driver.
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
107 /* Did we miss the chance to mix in an interrupt? Do it now. */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
108 if (BitAndAtomic(0xFFFFFFFF, (UInt32 *) & need_to_mix)) {
323
b7e8038e40ae The audio lock and unlock functions are now a part of the driver.
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
109 /*
b7e8038e40ae The audio lock and unlock functions are now a part of the driver.
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
110 * Note that this could be a problem if you missed an interrupt
b7e8038e40ae The audio lock and unlock functions are now a part of the driver.
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
111 * while the audio was locked, and get preempted by a second
b7e8038e40ae The audio lock and unlock functions are now a part of the driver.
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
112 * interrupt here, but that means you locked for way too long anyhow.
b7e8038e40ae The audio lock and unlock functions are now a part of the driver.
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
113 */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
114 mix_buffer(this, buffer[fill_me]);
323
b7e8038e40ae The audio lock and unlock functions are now a part of the driver.
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
115 }
b7e8038e40ae The audio lock and unlock functions are now a part of the driver.
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
116 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
117
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
118 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: 1621
diff changeset
119 callBackProc(SndChannel * chan, SndCommand * cmd_passed)
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
120 {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
121 UInt32 play_me;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
122 SndCommand cmd;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
123 SDL_AudioDevice *audio = (SDL_AudioDevice *) chan->userInfo;
323
b7e8038e40ae The audio lock and unlock functions are now a part of the driver.
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
124
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
125 IncrementAtomic((SInt32 *) & need_to_mix);
323
b7e8038e40ae The audio lock and unlock functions are now a part of the driver.
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
126
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
127 fill_me = cmd_passed->param2; /* buffer that has just finished playing, so fill it */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
128 play_me = !fill_me; /* filled buffer to play _now_ */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
129
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
130 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: 1621
diff changeset
131 return;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
132 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
133
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
134 /* queue previously mixed buffer for playback. */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
135 header.samplePtr = (Ptr) buffer[play_me];
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
136 cmd.cmd = bufferCmd;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
137 cmd.param1 = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
138 cmd.param2 = (long) &header;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
139 SndDoCommand(chan, &cmd, 0);
47
45b1c4303f87 Added initial support for Quartz video (thanks Darrell!)
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
140
2049
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2004
diff changeset
141 SDL_memset(buffer[fill_me], 0, audio->spec.size);
47
45b1c4303f87 Added initial support for Quartz video (thanks Darrell!)
Sam Lantinga <slouken@lokigames.com>
parents: 0
diff changeset
142
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
143 /*
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
144 * if audio device isn't locked, mix the next buffer to be queued in
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
145 * the memory block that just finished playing.
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
146 */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
147 if (!BitAndAtomic(0xFFFFFFFF, (UInt32 *) & audio_is_locked)) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
148 mix_buffer(audio, buffer[fill_me]);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
149 }
323
b7e8038e40ae The audio lock and unlock functions are now a part of the driver.
Sam Lantinga <slouken@libsdl.org>
parents: 297
diff changeset
150
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
151 /* set this callback to run again when current buffer drains. */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
152 if (running) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
153 cmd.cmd = callBackCmd;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
154 cmd.param1 = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
155 cmd.param2 = play_me;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
156
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
157 SndDoCommand(chan, &cmd, 0);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
158 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
159 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
160
2054
d22372343744 Patched to compile.
Ryan C. Gordon <icculus@icculus.org>
parents: 2049
diff changeset
161 static void
d22372343744 Patched to compile.
Ryan C. Gordon <icculus@icculus.org>
parents: 2049
diff changeset
162 SNDMGR_CloseDevice(_THIS)
d22372343744 Patched to compile.
Ryan C. Gordon <icculus@icculus.org>
parents: 2049
diff changeset
163 {
d22372343744 Patched to compile.
Ryan C. Gordon <icculus@icculus.org>
parents: 2049
diff changeset
164 running = 0;
d22372343744 Patched to compile.
Ryan C. Gordon <icculus@icculus.org>
parents: 2049
diff changeset
165
d22372343744 Patched to compile.
Ryan C. Gordon <icculus@icculus.org>
parents: 2049
diff changeset
166 if (this->hidden != NULL) {
d22372343744 Patched to compile.
Ryan C. Gordon <icculus@icculus.org>
parents: 2049
diff changeset
167 if (this->hidden->channel) {
d22372343744 Patched to compile.
Ryan C. Gordon <icculus@icculus.org>
parents: 2049
diff changeset
168 SndDisposeChannel(this->hidden->channel, true);
d22372343744 Patched to compile.
Ryan C. Gordon <icculus@icculus.org>
parents: 2049
diff changeset
169 this->hidden->channel = NULL;
d22372343744 Patched to compile.
Ryan C. Gordon <icculus@icculus.org>
parents: 2049
diff changeset
170 }
d22372343744 Patched to compile.
Ryan C. Gordon <icculus@icculus.org>
parents: 2049
diff changeset
171
d22372343744 Patched to compile.
Ryan C. Gordon <icculus@icculus.org>
parents: 2049
diff changeset
172 SDL_free(buffer[0]);
d22372343744 Patched to compile.
Ryan C. Gordon <icculus@icculus.org>
parents: 2049
diff changeset
173 SDL_free(buffer[1]);
d22372343744 Patched to compile.
Ryan C. Gordon <icculus@icculus.org>
parents: 2049
diff changeset
174 buffer[0] = buffer[1] = NULL;
d22372343744 Patched to compile.
Ryan C. Gordon <icculus@icculus.org>
parents: 2049
diff changeset
175
d22372343744 Patched to compile.
Ryan C. Gordon <icculus@icculus.org>
parents: 2049
diff changeset
176 SDL_free(this->hidden);
d22372343744 Patched to compile.
Ryan C. Gordon <icculus@icculus.org>
parents: 2049
diff changeset
177 this->hidden = NULL;
d22372343744 Patched to compile.
Ryan C. Gordon <icculus@icculus.org>
parents: 2049
diff changeset
178 }
d22372343744 Patched to compile.
Ryan C. Gordon <icculus@icculus.org>
parents: 2049
diff changeset
179 }
d22372343744 Patched to compile.
Ryan C. Gordon <icculus@icculus.org>
parents: 2049
diff changeset
180
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
181 static int
2049
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2004
diff changeset
182 SNDMGR_OpenDevice(_THIS, const char *devname, int iscapture)
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
183 {
2049
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2004
diff changeset
184 SDL_AudioSpec *spec = &this->spec;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2004
diff changeset
185 SndChannelPtr channel = 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: 1621
diff changeset
186 SndCallBackUPP callback;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
187 int sample_bits;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
188 int i;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
189 long initOptions;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
190
2049
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2004
diff changeset
191 /* Initialize all variables that we clean on shutdown */
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2004
diff changeset
192 this->hidden = (struct SDL_PrivateAudioData *)
2060
866052b01ee5 indent is evil
Sam Lantinga <slouken@libsdl.org>
parents: 2054
diff changeset
193 SDL_malloc((sizeof *this->hidden));
2049
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2004
diff changeset
194 if (this->hidden == NULL) {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2004
diff changeset
195 SDL_OutOfMemory();
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2004
diff changeset
196 return 0;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2004
diff changeset
197 }
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2004
diff changeset
198 SDL_memset(this->hidden, 0, (sizeof *this->hidden));
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2004
diff changeset
199
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2004
diff changeset
200 /* !!! FIXME: iterate through format matrix... */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
201 /* Very few conversions are required, but... */
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
202 switch (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: 1621
diff changeset
203 case AUDIO_S8:
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
204 spec->format = AUDIO_U8;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
205 break;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
206 case AUDIO_U16LSB:
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
207 spec->format = AUDIO_S16LSB;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
208 break;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
209 case AUDIO_U16MSB:
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
210 spec->format = AUDIO_S16MSB;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
211 break;
2004
c27292a690b7 Mac OS 9 support for int32/float32.
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
212 case AUDIO_F32LSB:
c27292a690b7 Mac OS 9 support for int32/float32.
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
213 spec->format = AUDIO_F32MSB;
c27292a690b7 Mac OS 9 support for int32/float32.
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
214 break;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
215 }
2049
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2004
diff changeset
216 SDL_CalculateAudioSpec(&this->spec);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
217
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
218 /* initialize bufferCmd header */
2049
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2004
diff changeset
219 SDL_memset(&header, 0, sizeof(header));
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
220 callback = (SndCallBackUPP) NewSndCallBackUPP(callBackProc);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
221 sample_bits = spec->size / spec->samples / spec->channels * 8;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
222
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
223 #ifdef DEBUG_AUDIO
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
224 fprintf(stderr,
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
225 "Audio format 0x%x, channels = %d, sample_bits = %d, frequency = %d\n",
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
226 spec->format, spec->channels, sample_bits, spec->freq);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
227 #endif /* 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: 1621
diff changeset
228
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
229 header.numChannels = spec->channels;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
230 header.sampleSize = sample_bits;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
231 header.sampleRate = spec->freq << 16;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
232 header.numFrames = spec->samples;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
233 header.encode = cmpSH;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
234
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
235 /* Note that we install the 16bitLittleEndian Converter if needed. */
2004
c27292a690b7 Mac OS 9 support for int32/float32.
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
236 if (spec->format == AUDIO_S16LSB) {
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
237 header.compressionID = fixedCompression;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
238 header.format = k16BitLittleEndianFormat;
2004
c27292a690b7 Mac OS 9 support for int32/float32.
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
239 } else if (spec->format == AUDIO_S32MSB) {
c27292a690b7 Mac OS 9 support for int32/float32.
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
240 header.compressionID = fixedCompression;
c27292a690b7 Mac OS 9 support for int32/float32.
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
241 header.format = k32BitFormat;
c27292a690b7 Mac OS 9 support for int32/float32.
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
242 } else if (spec->format == AUDIO_S32LSB) {
c27292a690b7 Mac OS 9 support for int32/float32.
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
243 header.compressionID = fixedCompression;
c27292a690b7 Mac OS 9 support for int32/float32.
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
244 header.format = k32BitLittleEndianFormat;
c27292a690b7 Mac OS 9 support for int32/float32.
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
245 } else if (spec->format == AUDIO_F32MSB) {
c27292a690b7 Mac OS 9 support for int32/float32.
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
246 header.compressionID = fixedCompression;
c27292a690b7 Mac OS 9 support for int32/float32.
Ryan C. Gordon <icculus@icculus.org>
parents: 1895
diff changeset
247 header.format = kFloat32Format;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
248 }
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
249
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
250 /* allocate 2 buffers */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
251 for (i = 0; i < 2; i++) {
2049
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2004
diff changeset
252 buffer[i] = (UInt8 *) SDL_malloc(sizeof(UInt8) * spec->size);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
253 if (buffer[i] == NULL) {
2049
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2004
diff changeset
254 SNDMGR_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: 1621
diff changeset
255 SDL_OutOfMemory();
2049
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2004
diff changeset
256 return 0;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
257 }
2049
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2004
diff changeset
258 SDL_memset(buffer[i], 0, spec->size);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
259 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
260
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
261 /* Create the sound manager channel */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
262 channel = (SndChannelPtr) SDL_malloc(sizeof(*channel));
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
263 if (channel == NULL) {
2049
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2004
diff changeset
264 SNDMGR_CloseDevice(this);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
265 SDL_OutOfMemory();
2049
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2004
diff changeset
266 return 0;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
267 }
2049
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2004
diff changeset
268 this->hidden->channel = channel;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
269 if (spec->channels >= 2) {
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
270 initOptions = initStereo;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
271 } else {
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
272 initOptions = initMono;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
273 }
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
274 channel->userInfo = (long) this;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
275 channel->qLength = 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: 1621
diff changeset
276 if (SndNewChannel(&channel, sampledSynth, initOptions, callback) != noErr) {
2049
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2004
diff changeset
277 SNDMGR_CloseDevice(this);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
278 SDL_SetError("Unable to create audio channel");
2049
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2004
diff changeset
279 return 0;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
280 }
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
281
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
282 /* start playback */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
283 {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
284 SndCommand cmd;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
285 cmd.cmd = callBackCmd;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
286 cmd.param2 = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
287 running = 1;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
288 SndDoCommand(channel, &cmd, 0);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
289 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
290
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
291 return 1;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
292 }
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: 1621
diff changeset
294 static int
2060
866052b01ee5 indent is evil
Sam Lantinga <slouken@libsdl.org>
parents: 2054
diff changeset
295 SNDMGR_Init(SDL_AudioDriverImpl * impl)
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
296 {
2049
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2004
diff changeset
297 /* Set the function pointers */
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2004
diff changeset
298 impl->OpenDevice = SNDMGR_OpenDevice;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2004
diff changeset
299 impl->CloseDevice = SNDMGR_CloseDevice;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2004
diff changeset
300 impl->ProvidesOwnCallbackThread = 1;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2004
diff changeset
301 impl->OnlyHasDefaultOutputDevice = 1;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
302
2049
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2004
diff changeset
303 /* Mac OS X uses threaded audio, so normal thread code is okay */
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2004
diff changeset
304 #ifndef __MACOSX__
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2004
diff changeset
305 impl->LockDevice = SNDMGR_LockDevice;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2004
diff changeset
306 impl->UnlockDevice = SNDMGR_UnlockDevice;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2004
diff changeset
307 impl->SkipMixerLock = 1;
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2004
diff changeset
308 #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: 1621
diff changeset
309
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
310 return 1;
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
311 }
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
312
2049
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2004
diff changeset
313 AudioBootStrap SNDMGR_bootstrap = {
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2004
diff changeset
314 "sndmgr", SDL_MACOS_NAME " SoundManager", SNDMGR_Init, 0
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2004
diff changeset
315 };
5f6550e5184f Merged SDL-ryan-multiple-audio-device branch r2803:2871 into the trunk.
Ryan C. Gordon <icculus@icculus.org>
parents: 2004
diff changeset
316
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1621
diff changeset
317 /* vi: set ts=4 sw=4 expandtab: */