diff options
author | Stefan Dösinger <[email protected]> | 2015-03-09 16:15:13 +0100 |
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committer | Marek Olšák <[email protected]> | 2015-03-09 20:58:32 +0100 |
commit | f710b99071fe4e3c2ee88cdcb6bb5c10298e014e (patch) | |
tree | efecbc61bcf94ff08e9e732f45c4674569ff2f5a /src/gallium/drivers/r300/r300_transfer.h | |
parent | 51b43c559f40eed2d02a35014c86b6a3e232c6fa (diff) |
r300g: Fix the ATI1N swizzle (RGTC1 and LATC1)
This fixes the GL_COMPRESSED_RED_RGTC1 part of piglit's rgtc-teximage-01
test as well as the precision part of Wine's 3dc format test (fd.o bug
89156).
The Z component seems to contain a lower precision version of the
result, probably a temporary value from the decompression computation.
The Y and W component contain different data that depends on the input
values as well, but I could not make sense of them (Not that I tried
very hard).
GL_COMPRESSED_SIGNED_RED_RGTC1 still seems to have precision problems in
piglit, and both formats are affected by a compiler bug if they're
sampled by the shader with a swizzle other than .xyzw. Wine uses .xxxx,
which returns random garbage.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=89156
Signed-off-by: Marek Olšák <[email protected]>
Cc: 10.5 10.4 <[email protected]>
Diffstat (limited to 'src/gallium/drivers/r300/r300_transfer.h')
0 files changed, 0 insertions, 0 deletions