Mercurial > sdl-ios-xcode
annotate src/video/Xext/README @ 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 | b87d8d4c205d |
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292
eadc0746dfaf
Added SDL_LockRect() and SDL_UnlockRect()
Sam Lantinga <slouken@libsdl.org>
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1 |
eadc0746dfaf
Added SDL_LockRect() and SDL_UnlockRect()
Sam Lantinga <slouken@libsdl.org>
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2 The reason these libraries are built outside of the standard XFree86 |
eadc0746dfaf
Added SDL_LockRect() and SDL_UnlockRect()
Sam Lantinga <slouken@libsdl.org>
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3 tree is so that they can be linked as shared object code directly into |
eadc0746dfaf
Added SDL_LockRect() and SDL_UnlockRect()
Sam Lantinga <slouken@libsdl.org>
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4 SDL without causing any symbol collisions with code in the application. |
eadc0746dfaf
Added SDL_LockRect() and SDL_UnlockRect()
Sam Lantinga <slouken@libsdl.org>
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5 |
eadc0746dfaf
Added SDL_LockRect() and SDL_UnlockRect()
Sam Lantinga <slouken@libsdl.org>
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6 You can't link static library code into shared libraries on non-x86 |
eadc0746dfaf
Added SDL_LockRect() and SDL_UnlockRect()
Sam Lantinga <slouken@libsdl.org>
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7 Linux platforms. Since these libraries haven't become standard yet, |
eadc0746dfaf
Added SDL_LockRect() and SDL_UnlockRect()
Sam Lantinga <slouken@libsdl.org>
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8 we'll just include them directly. |
eadc0746dfaf
Added SDL_LockRect() and SDL_UnlockRect()
Sam Lantinga <slouken@libsdl.org>
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9 |
690
b87d8d4c205d
Fixed use of SDL with XInitThreads()
Sam Lantinga <slouken@libsdl.org>
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292
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10 These sources are synchronized with XFree86 4.2.1 |