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tgsi: add docs for some existing pack opcodes

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Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
This commit is contained in:
Marek Olšák
2017-10-02 22:28:46 +02:00
parent 4ffb9890ef
commit bb8abc10bf
1 changed files with 21 additions and 3 deletions
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src/gallium/docs/source/tgsi.rst
+21 -3
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@@ -417,17 +417,35 @@ This instruction replicates its result.
.. opcode:: PK2US - Pack Two Unsigned 16-bit Scalars
TBD
This instruction replicates its result.
.. math::
dst = f32\_to\_unorm16(src.x) | f32\_to\_unorm16(src.y) << 16
.. opcode:: PK4B - Pack Four Signed 8-bit Scalars
TBD
This instruction replicates its result.
.. math::
dst = f32\_to\_snorm8(src.x) |
(f32\_to\_snorm8(src.y) << 8) |
(f32\_to\_snorm8(src.z) << 16) |
(f32\_to\_snorm8(src.w) << 24)
.. opcode:: PK4UB - Pack Four Unsigned 8-bit Scalars
TBD
This instruction replicates its result.
.. math::
dst = f32\_to\_unorm8(src.x) |
(f32\_to\_unorm8(src.y) << 8) |
(f32\_to\_unorm8(src.z) << 16) |
(f32\_to\_unorm8(src.w) << 24)
.. opcode:: SEQ - Set On Equal