Mercurial > sdl-ios-xcode
annotate src/audio/SDL_mixer_MMX.h @ 3335:b8d313de8a65
Adam Strzelecki to SDL
Since current DirectFB implementation is incomplete for YUV surfaces (actually causes segmentation faults when trying Lock and use YUV planar textures) I decided to fix it a bit.
Here's a patch that should make DirectFB properly support YUV both packed and planar (3 planes).
(1) Removed SDL_BYTESPERPIXEL at all in favor of DFB_BYTES_PER_PIXEL(SDLToDFBPixelFormat(fmt)) which does return always proper BPP for YUVs too, coz SDL_BYTESPERPIXEL returns incorrect values for FOURCCs
(2) Fixed data->pixels allocation for planar YUVs in CreateTexture, it should allocate 150% more space
(3) Copy other planes for planar YUVs in UpdateTexture
(4) Moved checking if format is supported at all with DirectFB on CreateTexture at the beginning of the code
Waiting for comments,
--
Adam Strzelecki | nanoant.com
author | Sam Lantinga <slouken@libsdl.org> |
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date | Sun, 04 Oct 2009 04:03:37 +0000 |
parents | c121d94672cb |
children | 4d46850be3f6 |
rev | line source |
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Date: Fri, 31 Dec 2004 04:14:09 +0900
Sam Lantinga <slouken@libsdl.org>
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1 /* |
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Date: Fri, 31 Dec 2004 04:14:09 +0900
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2 headers for MMX assembler version of SDL_MixAudio |
e3b3130f3af8
Date: Fri, 31 Dec 2004 04:14:09 +0900
Sam Lantinga <slouken@libsdl.org>
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3 Copyright 2002 Stephane Marchesin (stephane.marchesin@wanadoo.fr) |
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Date: Fri, 31 Dec 2004 04:14:09 +0900
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4 This code is licensed under the LGPL (see COPYING for details) |
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Date: Fri, 31 Dec 2004 04:14:09 +0900
Sam Lantinga <slouken@libsdl.org>
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5 |
e3b3130f3af8
Date: Fri, 31 Dec 2004 04:14:09 +0900
Sam Lantinga <slouken@libsdl.org>
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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>
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7 Assumes SDL_MIX_MAXVOLUME = 128 |
e3b3130f3af8
Date: Fri, 31 Dec 2004 04:14:09 +0900
Sam Lantinga <slouken@libsdl.org>
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8 */ |
1402
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Use consistent identifiers for the various platforms we support.
Sam Lantinga <slouken@libsdl.org>
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9 #include "SDL_config.h" |
539
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Added MMX audio mixing code for gcc (thanks Stephane!)
Sam Lantinga <slouken@libsdl.org>
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10 |
1487
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Cleaning up warnings on MacOS X
Sam Lantinga <slouken@libsdl.org>
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11 #if defined(__GNUC__) && defined(__i386__) && defined(SDL_ASSEMBLY_ROUTINES) |
1895
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SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
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12 void SDL_MixAudio_MMX_S16(char *, char *, unsigned int, int); |
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
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13 void SDL_MixAudio_MMX_S8(char *, char *, unsigned int, int); |
539
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Added MMX audio mixing code for gcc (thanks Stephane!)
Sam Lantinga <slouken@libsdl.org>
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14 #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:
1487
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15 /* vi: set ts=4 sw=4 expandtab: */ |