On Mon, Oct 07, 2013 at 04:31:20PM -0700, Kenneth Graunke wrote:
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 kenn...@whitecape.org
R32_FLOAT instead of R16_UNORM in the subject.
-Daniel
---
src/mesa/drivers/dri/i965/brw_blorp.cpp | 14 --
1 file changed, 8 insertions(+), 6 deletions(-)
diff --git a/src/mesa/drivers/dri/i965/brw_blorp.cpp
b/src/mesa/drivers/dri/i965/brw_blorp.cpp
index 46bb244..f71db4f 100644
--- a/src/mesa/drivers/dri/i965/brw_blorp.cpp
+++ b/src/mesa/drivers/dri/i965/brw_blorp.cpp
@@ -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;
--
1.8.3.2
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--
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch
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