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YUV->RGB hardware support in MAME?
#193866 - 06/21/09 03:57 PM
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Hi, Again for some MPEG games. These games play MPEG Video as background, with a sprite layer in front of the video.
What is unusual from normal hardware, the Palette for Sprites is not in RGB format, but in YUV. I suppose the sprite layer shares with MPEG layer the same YUV->RGB converter in a REAL arcade board.
Since most present VGA cards can do color space convertion. Does MAME support this?
:-)
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Re: YUV->RGB hardware support in MAME?
[Re: Naibo]
#193913 - 06/22/09 12:48 AM
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SDLMAME does. I don't know about Windows MAME.
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| R. Belmont |
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Cuckoo for IGAvania
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Reged: 09/21/03
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Posts: 9716
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Loc: ECV-197 The Orville
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Re: YUV->RGB hardware support in MAME?
[Re: Vas Crabb]
#193977 - 06/22/09 11:22 PM
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> SDLMAME does. I don't know about Windows MAME.
MAME supports YUV-format framebuffers. Baseline can use the video card to do the final RGB conversion, SDLMAME can't until someone writes me a pixel shader under an appropriate license.
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Re: YUV->RGB hardware support in MAME?
[Re: R. Belmont]
#194069 - 06/23/09 07:01 PM
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Thanks, Belmont.
Could you show how to define a UYVY frame buffer/Palette in MAME?
Some code example will be very helpful.
:-)
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