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gallium/docs: document that TXF is used with PIPE_BUFFER resources

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Reviewed-by: Roland Scheidegger <sroland@vmware.com>
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Brian Paul 2017-06-30 09:23:43 -06:00
parent f4091e1638
commit e54fe78e0e
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src/gallium/docs/source/tgsi.rst
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@ -939,7 +939,8 @@ XXX doesn't look like most of the opcodes really belong here.
.. opcode:: TXF - Texel Fetch
As per NV_gpu_shader4, extract a single texel from a specified texture
image. The source sampler may not be a CUBE or SHADOW. src 0 is a
image or PIPE_BUFFER resource. The source sampler may not be a CUBE or
SHADOW. src 0 is a
four-component signed integer vector used to identify the single texel
accessed. 3 components + level. Just like texture instructions, an optional
offset vector is provided, which is subject to various driver restrictions