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authorTopi Pohjolainen <[email protected]>2015-12-09 12:56:06 +0200
committerTopi Pohjolainen <[email protected]>2016-02-13 09:50:24 +0200
commitf709a0845792540544982740fa47be672825ee8a (patch)
tree5ab40738526212275f07d70998e62a56ad9e6e29 /src/compiler/glsl
parent7513c5c782a5499df5558cb849ba7db9b31eb58c (diff)
i965: Add means for limiting color resolves
Until now there has been only one type of color buffer that needs to resolved - namely single sampled fast clear. As even the sampler engine in GPU doesn't understand the associated meta data, the color values need to be always resolved prior to reading them. From SKL onwards there is new scheme supported called the lossless compression of single sampled color buffers. This is something that is understood by the sampling engine and therefore resolving of these types of buffers is not necessary before sampling. This patch adds means to make the distinction when considering if resolve is needed. Signed-off-by: Topi Pohjolainen <[email protected]> Reviewed-by: Ben Widawsky <[email protected]>
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