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mesa: Drop incorrect A4B4G4R4 _mesa_format_matches_format_and_type() cases.

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swapBytes operates on bytes, not 4-bit channels, so you can't just take
non-swapBytes cases and flip the REV flag.

Avoids piglit texture-packed-formats regressions when enabling the
ABGR4444 format.

Fixes: c5a5c9a7db ("mesa/formats: add new mesa formats and their pack/unpack functions.")
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
This commit is contained in:
Eric Anholt 2018-02-01 11:12:47 -08:00
parent bbef9474fa
commit 1429cd74c2
1 changed files with 0 additions and 6 deletions
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6
src/mesa/main/formats.c
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@ -1568,15 +1568,9 @@ _mesa_format_matches_format_and_type(mesa_format mesa_format,
if (format == GL_RGBA && type == GL_UNSIGNED_SHORT_4_4_4_4 && !swapBytes)
return GL_TRUE;
if (format == GL_RGBA && type == GL_UNSIGNED_SHORT_4_4_4_4_REV && swapBytes)
return GL_TRUE;
if (format == GL_ABGR_EXT && type == GL_UNSIGNED_SHORT_4_4_4_4_REV && !swapBytes)
return GL_TRUE;
if (format == GL_ABGR_EXT && type == GL_UNSIGNED_SHORT_4_4_4_4 && swapBytes)
return GL_TRUE;
return GL_FALSE;
case MESA_FORMAT_R4G4B4A4_UNORM: