Mercurial > sdl-ios-xcode

annotate src/audio/SDL_mixer_MMX.h @ 4347:38f22ed3a433 SDL-1.2

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Option to fix bug #851 For some people setting the period size works better (and is what SDL 1.2.13 did), but for most people it's the same or worse. You can use an environment variable to pick which one you want.
author Sam Lantinga <slouken@libsdl.org>
date Sat, 17 Oct 2009 06:55:17 +0000
parents a8e5b518e194
children
rev   line source
1019
e3b3130f3af8 Date: Fri, 31 Dec 2004 04:14:09 +0900
Sam Lantinga <slouken@libsdl.org>
parents: 539
diff changeset
1 /*
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
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)
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)
e3b3130f3af8 Date: Fri, 31 Dec 2004 04:14:09 +0900
Sam Lantinga <slouken@libsdl.org>
parents: 539
diff changeset
5
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
e3b3130f3af8 Date: Fri, 31 Dec 2004 04:14:09 +0900
Sam Lantinga <slouken@libsdl.org>
parents: 539
diff changeset
7 Assumes SDL_MIX_MAXVOLUME = 128
e3b3130f3af8 Date: Fri, 31 Dec 2004 04:14:09 +0900
Sam Lantinga <slouken@libsdl.org>
parents: 539
diff changeset
8 */
1402
d910939febfa Use consistent identifiers for the various platforms we support.
Sam Lantinga <slouken@libsdl.org>
parents: 1019
diff changeset
9 #include "SDL_config.h"
539
a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
10
4322
a8e5b518e194 Forcibly disabled MMX mixers.
Ryan C. Gordon <icculus@icculus.org>
parents: 1487
diff changeset
11 #if defined(SDL_BUGGY_MMX_MIXERS) /* buggy, so we're disabling them. --ryan. */
1487
dc6b59e925a2 Cleaning up warnings on MacOS X
Sam Lantinga <slouken@libsdl.org>
parents: 1402
diff changeset
12 #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
13 void SDL_MixAudio_MMX_S16(char* ,char* ,unsigned int ,int );
a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
14 void SDL_MixAudio_MMX_S8(char* ,char* ,unsigned int ,int );
a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
15 #endif
4322
a8e5b518e194 Forcibly disabled MMX mixers.
Ryan C. Gordon <icculus@icculus.org>
parents: 1487
diff changeset
16 #endif
539
a9e38f3b8e4d Added MMX audio mixing code for gcc (thanks Stephane!)
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
17