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gallium/docs: Lops override the rest of the blending state when enabled.

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Corbin Simpson
2010-06-24 07:13:10 -07:00
parent 05a18f48e5
commit 49735d1c6c
1 changed files with 4 additions and 2 deletions
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src/gallium/docs/source/cso/blend.rst
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@@ -20,9 +20,11 @@ Logical Operations
Logical operations, also known as logicops, lops, or rops, are supported.
Only two-operand logicops are available. When logicops are enabled, all other
blend state is ignored, including per-render-target state, so logicops are
performed on all enabled render targets.
performed on all render targets.
XXX do lops still apply if blend_enable isn't set?
.. warning::
The blend_enable flag is ignored for all render targets when logical
operations are enabled.
For a source component `s` and destination component `d`, the logical
operations are defined as taking the bits of each channel of each component,