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authorKenneth Graunke <[email protected]>2014-01-22 16:48:03 -0800
committerKenneth Graunke <[email protected]>2014-01-25 19:20:17 -0800
commit07149f0252c52b4ac58b6df4e307fd786b49b490 (patch)
tree6297c643f9e7af9347f63403991a047b6ae529c3 /VERSION
parenta487b4d0e3dfdf21d9604d4e36c65c5113c4ce7a (diff)
i965: Don't store qpitch / 4 as mt->qpitch for compressed surfaces.
Broadwell requires software to specify QPitch in a bunch of packets, so we decided to store it in the miptree. However, when I did that refactoring, I missed a subtlety: the hardware expects QPitch to be "in units of rows in the uncompressed surface". This is the value we originally compute. However, for compressed surfaces, we then divided it by 4 (the block height), to obtain the physical layout. This is no longer the QPitch Broadwell expects. So, store the original undivided value in mt->qpitch, but continue to use the divided value in brw_miptree_layout_texture_array(). For non-Broadwell platforms, this should have no impact at all. Helps fix Piglit's "getteximage-targets S3TC CUBE" test on Broadwell. Signed-off-by: Kenneth Graunke <[email protected]> Reviewed-by: Eric Anholt <[email protected]>
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