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Author Topic: Yuy2 Video Textures  (Read 72 times)

BenJeremy

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Yuy2 Video Textures
« on: November 26, 2002, 10:51:00 AM »
Ugh. Looks like I'm going to have to do this the hard way tonight.... I looked at the swizzle code (what a non-compiling mess) from the XDK, and of course, YUV support is not there, either.

It seems you can't use YUY2-formatted textures as textures, they only work as overlays, and only directly to video memory.

Perhaps what MIGHT be able to be done is to use a non-displayed portion of video memory to put the overlay on (Open another D3D Device?), then read that portion of video memory back into a texture surface????

AARRGGHHH!!! It's either that or directly translate the YUY2 to ARGB/swizzled, which doesn't look too nice, either.

I want get video working for my screen shots in MXM without using overlays.... that way, I can have multiple video textures (for ex. backgrounds and screenshots) or use video textures on 3D objects.

Any ideas would be greatly appreciated. Thanks
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BenJeremy

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Yuy2 Video Textures
« Reply #1 on: November 27, 2002, 06:19:00 PM »
Well, I've done about as much as I can for now. I did find a RenderStageState of YUVENABLE, but it didn't work for me at all, as described in the doco. I may be using it wrong.

I also had no luck with XGSwizzle()

So, I'm officially putting video textures on the side. It won't be a supported feature for 1.0.

If anybody is interested in the work I've done, I'm going to leave the code in, and I can send it to anybody interested in playing with it and maybe making it happen. I'm sure I'm missing something simple... if we can get video textures working, there are a whole lot more potential applications for it.
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