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i965/blorp: Use R32_FLOAT for Z32F surfaces.

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Currently, all that matters is that we copy the correct number of bits,
so any format that has 32-bits of data will work fine.

Once BLORP begins handling format conversions, the sampler will need to
correctly interpret the data.  We don't need a depth format, but we do
need the right number of components and data type (FLOAT).

For Z32F, this means using R32_FLOAT.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Chad Versace <chad.versace@linux.intel.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Kenneth Graunke
2013-10-07 11:19:11 -07:00
parent 4dc25b7615
commit 590d71791a
1 changed files with 8 additions and 6 deletions
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src/mesa/drivers/dri/i965/brw_blorp.cpp
+8 -6
View File
@@ -86,15 +86,17 @@ brw_blorp_surface_info::set(struct brw_context *brw,
this->brw_surfaceformat = BRW_SURFACEFORMAT_R8_UNORM;
break;
case MESA_FORMAT_X8_Z24:
case MESA_FORMAT_Z32_FLOAT:
/* The miptree consists of 32 bits per pixel, arranged either as 24-bit
* depth values interleaved with 8 "don't care" bits, or as 32-bit
* floating point depth values. Since depth values don't require any
* blending, it doesn't matter how we interpret the bit pattern as long
* as we copy the right amount of data, so just map it as 8-bit BGRA.
/* The miptree consists of 32 bits per pixel, arranged as 24-bit depth
* values interleaved with 8 "don't care" bits. Since depth values don't
* require any blending, it doesn't matter how we interpret the bit
* pattern as long as we copy the right amount of data, so just map it
* as 8-bit BGRA.
*/
this->brw_surfaceformat = BRW_SURFACEFORMAT_B8G8R8A8_UNORM;
break;
case MESA_FORMAT_Z32_FLOAT:
this->brw_surfaceformat = BRW_SURFACEFORMAT_R32_FLOAT;
break;
case MESA_FORMAT_Z16:
this->brw_surfaceformat = BRW_SURFACEFORMAT_R16_UNORM;
break;