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i965: Pretend we don't support BRW_SURFACEFORMAT_R16G16B16_FLOAT for textures. 

None of the other 3-component 16bpc formats are directly supported, so
they get promoted to XRGB equivalents. *Not* promoting RGB16F the same
way makes texture views much more fiddly -- we don't want to have to do
crazy copying behind the scenes.

(with my other master + my experimental ARB_texture_view support) fixes
the piglit test: `spec/ARB_texture_view/view compare 48bit formats`

No regressions in gpu.tests on Haswell.

V4: Don't alter the formats table -- just don't match it to a mesa_format. [Kenneth]

Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Acked-by: Eric Anholt <eric@anholt.net>
This commit is contained in:
Chris Forbes 2013-12-14 17:40:03 +13:00
parent 66b0554fa6
commit 50eed4eed5
1 changed files with 1 additions and 1 deletions
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2
src/mesa/drivers/dri/i965/brw_surface_formats.c
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@ -386,7 +386,7 @@ brw_format_for_mesa_format(mesa_format mesa_format)
[MESA_FORMAT_RGBA_FLOAT32] = BRW_SURFACEFORMAT_R32G32B32A32_FLOAT,
[MESA_FORMAT_RGBA_FLOAT16] = BRW_SURFACEFORMAT_R16G16B16A16_FLOAT,
[MESA_FORMAT_RGB_FLOAT32] = BRW_SURFACEFORMAT_R32G32B32_FLOAT,
[MESA_FORMAT_RGB_FLOAT16] = BRW_SURFACEFORMAT_R16G16B16_FLOAT,
[MESA_FORMAT_RGB_FLOAT16] = 0,
[MESA_FORMAT_A_FLOAT32] = BRW_SURFACEFORMAT_A32_FLOAT,
[MESA_FORMAT_A_FLOAT16] = BRW_SURFACEFORMAT_A16_FLOAT,
[MESA_FORMAT_L_FLOAT32] = BRW_SURFACEFORMAT_L32_FLOAT,