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2013 Nov 29
1
texelFetch sampler1/2DArray on nv50 gallium
Hi Christoph/nouveau folks,
I've noticed that the piglit test "texelFetch" fails on my nv98 for
sampler1DArray and sampler2DArray. I nuked the logic in
nv50_ir_lowering_nv50.cpp:604 that does the f32 -> u32 conversion, and
it seems to be passing now. TBH, I have no clue how the parameters are
passed around and what that a[] is, but it seems like it's a u32 to
begin with? (Or that it's the same format that texfetch...
2015 Jan 11
2
[PATCH v2] nv50/ir: Handle OP_CVT when folding constant expressions
...really matter. However I guess you can keep the saturate bits around
> if you like.
We can do it with or without the saturate if we rely on the test,
assert(!i->saturate)'ing is the only thing that breaks the test you sure
meant:
glsl-resource-not-bound 1DArray
glsl-resource-not-bound 2DArray
glsl-resource-not-bound 2DMSArray
>
> -ilia
2015 Jan 11
0
[PATCH v2] nv50/ir: Handle OP_CVT when folding constant expressions
...can keep the saturate bits around
>> if you like.
>
> We can do it with or without the saturate if we rely on the test,
> assert(!i->saturate)'ing is the only thing that breaks the test you sure
> meant:
>
> glsl-resource-not-bound 1DArray
> glsl-resource-not-bound 2DArray
> glsl-resource-not-bound 2DMSArray
Hm, those are the only times that a texelFetch is done in piglit with
a constant layer index, I guess.
2015 Jan 11
2
[PATCH v2] nv50/ir: Handle OP_CVT when folding constant expressions
...its around
>>> if you like.
>> We can do it with or without the saturate if we rely on the test,
>> assert(!i->saturate)'ing is the only thing that breaks the test you sure
>> meant:
>>
>> glsl-resource-not-bound 1DArray
>> glsl-resource-not-bound 2DArray
>> glsl-resource-not-bound 2DMSArray
> Hm, those are the only times that a texelFetch is done in piglit with
> a constant layer index, I guess.
Ok, i'll keep the saturates for (U/S)16 to for once satisfy the
"dependency" you posted up there and to be future proof if someb...
2015 Jan 11
2
[PATCH v2] nv50/ir: Handle OP_CVT when folding constant expressions
On 11.01.2015 01:58, Ilia Mirkin wrote:
> On Fri, Jan 9, 2015 at 8:24 PM, Tobias Klausmann
> <tobias.johannes.klausmann at mni.thm.de> wrote:
>> Folding for conversions: F32->(U{16/32}, S{16/32}) and (U{16/32}, {S16/32})->F32
>>
>> Signed-off-by: Tobias Klausmann <tobias.johannes.klausmann at mni.thm.de>
>> ---
>> V2: beat me, whip me, split