On Wed, Jul 16, 2014 at 9:53 AM, Glenn Kennard wrote:
> Only supported on evergreen and later. Currently limited
> to single component textures as the hardware GATHER4
> instruction ignores texture swizzles.
>
> Piglit quick run passes on radeon 6670 with all
> applicable textureGather tests, no r
Only supported on evergreen and later. Currently limited
to single component textures as the hardware GATHER4
instruction ignores texture swizzles.
Piglit quick run passes on radeon 6670 with all
applicable textureGather tests, no regressions.
Signed-off-by: Glenn Kennard
---
Changes from v1:
R
My advice is: The shader being compiled should be analyzed before
compilation and an array of bool flags (or one uint16_t for all flags)
should be produced saying which sampler units use TG4. Then, you only
need to set the swizzle in the key for the i-th sampler if the i-th
sampler is really used b
>> Also, have you looked at Dave Airlie's impl? Not sure what's been
>> going on there...
>> http://cgit.freedesktop.org/~airlied/mesa/log/?h=r600g-texture-gather
>> . He seemed to enable 4 components for >= CEDAR.
>>
>
> No, didn't pop up when i searched the archives for any prior work on this.
>
On Mon, 14 Jul 2014 20:33:08 +0200, Ilia Mirkin
wrote:
On Mon, Jul 14, 2014 at 2:20 PM, Glenn Kennard
wrote:
diff --git a/src/gallium/drivers/r600/r600_pipe.c
b/src/gallium/drivers/r600/r600_pipe.c
index ca6399f..d967f0f 100644
--- a/src/gallium/drivers/r600/r600_pipe.c
+++ b/src/gallium
Hm, indeed. PIPE_CAP_TEXTURE_GATHER_SM5 should be 0.
Marek
On Mon, Jul 14, 2014 at 9:10 PM, Ilia Mirkin wrote:
> On Mon, Jul 14, 2014 at 3:06 PM, Marek Olšák wrote:
>> Reviewed-by: Marek Olšák
>>
>> Yes, Dave Airlie's branch seems to support multi-component textures as
>> well as texture offse
On Mon, Jul 14, 2014 at 3:06 PM, Marek Olšák wrote:
> Reviewed-by: Marek Olšák
>
> Yes, Dave Airlie's branch seems to support multi-component textures as
> well as texture offsets. However, his solution triggers shader
> recompilation when the format and/or swizzle is changed even if the
> shader
Reviewed-by: Marek Olšák
Yes, Dave Airlie's branch seems to support multi-component textures as
well as texture offsets. However, his solution triggers shader
recompilation when the format and/or swizzle is changed even if the
shader doesn't use GATHER4. The recompilation should only be done for
On Mon, Jul 14, 2014 at 2:20 PM, Glenn Kennard wrote:
> Only supported on evergreen and later. Limited to
> single component textures as the hardware GATHER4
> instruction ignores texture swizzles.
>
> Piglit quick run passes on radeon 6670 with all
> applicable textureGather tests, no regressions
Only supported on evergreen and later. Limited to
single component textures as the hardware GATHER4
instruction ignores texture swizzles.
Piglit quick run passes on radeon 6670 with all
applicable textureGather tests, no regressions.
Signed-off-by: Glenn Kennard
---
docs/GL3.txt
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