Mercurial > sdl-ios-xcode
annotate src/audio/SDL_mixer_MMX.h @ 1798:49b4b8413734
Date: Tue, 9 May 2006 23:01:49 -0400
From: Mike Frysinger
Subject: [SDL] [patch] fall back to using MAP_PRIVATE with mmap() in fbcon dri
trying to use MAP_SHARED with mmap() on uClinux (aka non-mmu) hosts nowadays
will simply fail since the kernel disallows it ... falling back to using
MAP_PRIVATE on these hosts is acceptable ... as such, ive attached a patch
for the fbcon driver that will fall back to using MAP_PRIVATE if mmap() with
MAP_SHARED failed
going by a grep of MAP_SHARED, the only other drivers that utilize this flag
are video/wscons, video/ps2gs, and sound/dmaaudio ... i dont think these
would appear on a non-mmu host so the patch i wrote is restricted to just
SDL_fbvideo.c ...
-mike
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Wed, 10 May 2006 04:05:46 +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
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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
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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
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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
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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
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5 |
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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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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
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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
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8 */ |
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1402
d910939febfa
Use consistent identifiers for the various platforms we support.
Sam Lantinga <slouken@libsdl.org>
parents:
1019
diff
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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:
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10 |
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1487
dc6b59e925a2
Cleaning up warnings on MacOS X
Sam Lantinga <slouken@libsdl.org>
parents:
1402
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11 #if defined(__GNUC__) && defined(__i386__) && defined(SDL_ASSEMBLY_ROUTINES) |
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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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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
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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
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15 |