Mercurial > sdl-ios-xcode
annotate src/audio/SDL_mixer_MMX.h @ 4001:6831b8723a85 SDL-1.2
Don't initialize the audio buffer passed to the application's audio callback,
since they are expected to entirely fill it with data or silence.
For legacy apps that might expect the buffer to already have silence and thus
may not fill the buffer in the callback, there's an environment variable to
expose the old behaviour.
Fixes Bugzilla #416.
| author | Ryan C. Gordon <icculus@icculus.org> |
|---|---|
| date | Thu, 05 Jul 2007 02:24:36 +0000 |
| parents | dc6b59e925a2 |
| children | 782fd950bd46 c121d94672cb a8e5b518e194 |
| rev | line source |
|---|---|
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1019
e3b3130f3af8
Date: Fri, 31 Dec 2004 04:14:09 +0900
Sam Lantinga <slouken@libsdl.org>
parents:
539
diff
changeset
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1 /* |
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e3b3130f3af8
Date: Fri, 31 Dec 2004 04:14:09 +0900
Sam Lantinga <slouken@libsdl.org>
parents:
539
diff
changeset
|
2 headers for MMX assembler version of SDL_MixAudio |
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e3b3130f3af8
Date: Fri, 31 Dec 2004 04:14:09 +0900
Sam Lantinga <slouken@libsdl.org>
parents:
539
diff
changeset
|
3 Copyright 2002 Stephane Marchesin (stephane.marchesin@wanadoo.fr) |
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e3b3130f3af8
Date: Fri, 31 Dec 2004 04:14:09 +0900
Sam Lantinga <slouken@libsdl.org>
parents:
539
diff
changeset
|
4 This code is licensed under the LGPL (see COPYING for details) |
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e3b3130f3af8
Date: Fri, 31 Dec 2004 04:14:09 +0900
Sam Lantinga <slouken@libsdl.org>
parents:
539
diff
changeset
|
5 |
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e3b3130f3af8
Date: Fri, 31 Dec 2004 04:14:09 +0900
Sam Lantinga <slouken@libsdl.org>
parents:
539
diff
changeset
|
6 Assumes buffer size in bytes is a multiple of 16 |
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e3b3130f3af8
Date: Fri, 31 Dec 2004 04:14:09 +0900
Sam Lantinga <slouken@libsdl.org>
parents:
539
diff
changeset
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7 Assumes SDL_MIX_MAXVOLUME = 128 |
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e3b3130f3af8
Date: Fri, 31 Dec 2004 04:14:09 +0900
Sam Lantinga <slouken@libsdl.org>
parents:
539
diff
changeset
|
8 */ |
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1402
d910939febfa
Use consistent identifiers for the various platforms we support.
Sam Lantinga <slouken@libsdl.org>
parents:
1019
diff
changeset
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9 #include "SDL_config.h" |
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539
a9e38f3b8e4d
Added MMX audio mixing code for gcc (thanks Stephane!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
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10 |
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1487
dc6b59e925a2
Cleaning up warnings on MacOS X
Sam Lantinga <slouken@libsdl.org>
parents:
1402
diff
changeset
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11 #if defined(__GNUC__) && defined(__i386__) && defined(SDL_ASSEMBLY_ROUTINES) |
|
539
a9e38f3b8e4d
Added MMX audio mixing code for gcc (thanks Stephane!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
12 void SDL_MixAudio_MMX_S16(char* ,char* ,unsigned int ,int ); |
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a9e38f3b8e4d
Added MMX audio mixing code for gcc (thanks Stephane!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
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13 void SDL_MixAudio_MMX_S8(char* ,char* ,unsigned int ,int ); |
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a9e38f3b8e4d
Added MMX audio mixing code for gcc (thanks Stephane!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
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14 #endif |
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a9e38f3b8e4d
Added MMX audio mixing code for gcc (thanks Stephane!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff
changeset
|
15 |