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docs/gallium: Clarify PIPE_CAP_CLIP_PLANES

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Drivers with PIPE_CAP_CLIP_PLANES set to 0,
such as zink, ignore clip_plane_enable.

Acked-by: Mike Blumenkrantz <michael.blumenkrantz@gmail.com>
Signed-off-by: Axel Davy <davyaxel0@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/22644>
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Axel Davy 2022-07-21 22:01:47 +02:00 • committed by Marge Bot
parent 3d5f3c5178
commit f0e9c225d8
1 changed files with 1 additions and 1 deletions
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docs/gallium/screen.rst
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@ -606,7 +606,7 @@ The integer capabilities:
that back-facing primitives should use the back-side color as the FS input
color. If unset, mesa/st will lower it to gl_FrontFacing reads in the
fragment shader.
* ``PIPE_CAP_CLIP_PLANES``: Driver supports user-defined clip-planes. 0 denotes none, 1 denotes MAX_CLIP_PLANES. > 1 overrides MAX.
* ``PIPE_CAP_CLIP_PLANES``: Driver supports user-defined clip-planes. 0 denotes none, 1 denotes MAX_CLIP_PLANES. > 1 overrides MAX. When is 0, pipe_rasterizer_state::clip_plane_enable is unused.
* ``PIPE_CAP_MAX_VERTEX_BUFFERS``: Number of supported vertex buffers.
* ``PIPE_CAP_OPENCL_INTEGER_FUNCTIONS``: Driver supports extended OpenCL-style integer functions. This includes average, saturating addition, saturating subtraction, absolute difference, count leading zeros, and count trailing zeros.
* ``PIPE_CAP_INTEGER_MULTIPLY_32X16``: Driver supports integer multiplication between a 32-bit integer and a 16-bit integer. If the second operand is 32-bits, the upper 16-bits are ignored, and the low 16-bits are possibly sign extended as necessary.