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Taylor: Avoiding Jitter in Composited Frame Display

Taylor: Avoiding Jitter in Composited Frame Display

Posted Dec 3, 2012 11:53 UTC (Mon) by daniels (subscriber, #16193)
In reply to: Taylor: Avoiding Jitter in Composited Frame Display by Fowl
Parent article: Taylor: Avoiding Jitter in Composited Frame Display

"Overlay" video rendering has been depreciated for quite a long time.

It really hasn't. All current-generation GPUs have dedicated YUV overlay units, since they can do vastly better colourspace conversion and filtering, which makes a huge difference in image quality. Even putting that aside, you get an enormous benefit in terms of power usage, so pretty much all embedded/mobile/media-class chipsets vastly prefer the overlays.


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Taylor: Avoiding Jitter in Composited Frame Display

Posted Dec 3, 2012 20:55 UTC (Mon) by airlied (subscriber, #9104) [Link]

except for anything in desktop space,

no new nvidia or amd gpu has had yuv overlay in years. Since DX9 cards I'd guess.

Taylor: Avoiding Jitter in Composited Frame Display

Posted Dec 3, 2012 21:08 UTC (Mon) by daniels (subscriber, #16193) [Link]

Hm, isn't UVD an overlay?

Taylor: Avoiding Jitter in Composited Frame Display

Posted Dec 3, 2012 21:11 UTC (Mon) by zlynx (subscriber, #2285) [Link]

As I recall reading, the new cards have exactly the same feature, they just do it with a texture surface and a shader program these days.

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