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>
date Sun, 04 Oct 2009 04:03:37 +0000
parents b87d8d4c205d
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eadc0746dfaf Added SDL_LockRect() and SDL_UnlockRect()
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eadc0746dfaf Added SDL_LockRect() and SDL_UnlockRect()
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2 The reason these libraries are built outside of the standard XFree86
eadc0746dfaf Added SDL_LockRect() and SDL_UnlockRect()
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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()
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4 SDL without causing any symbol collisions with code in the application.
eadc0746dfaf Added SDL_LockRect() and SDL_UnlockRect()
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5
eadc0746dfaf Added SDL_LockRect() and SDL_UnlockRect()
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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()
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7 Linux platforms. Since these libraries haven't become standard yet,
eadc0746dfaf Added SDL_LockRect() and SDL_UnlockRect()
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8 we'll just include them directly.
eadc0746dfaf Added SDL_LockRect() and SDL_UnlockRect()
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9
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b87d8d4c205d Fixed use of SDL with XInitThreads()
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10 These sources are synchronized with XFree86 4.2.1