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gallium: document conservative rasterization flags

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Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
This commit is contained in:
Marek Olšák 2019-04-19 19:11:34 -04:00
parent 26391cceaa
commit d9838f653a
2 changed files with 16 additions and 0 deletions
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5
src/gallium/docs/source/screen.rst
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@ -456,10 +456,15 @@ The integer capabilities:
as opposed to padding to vec4s.
* ``PIPE_CAP_CONSERVATIVE_RASTER_POST_SNAP_TRIANGLES``: Whether the
``PIPE_CONSERVATIVE_RASTER_POST_SNAP`` mode is supported for triangles.
The post-snap mode means the conservative rasterization occurs after
the conversion from floating-point to fixed-point coordinates
on the subpixel grid.
* ``PIPE_CAP_CONSERVATIVE_RASTER_POST_SNAP_POINTS_LINES``: Whether the
``PIPE_CONSERVATIVE_RASTER_POST_SNAP`` mode is supported for points and lines.
* ``PIPE_CAP_CONSERVATIVE_RASTER_PRE_SNAP_TRIANGLES``: Whether the
``PIPE_CONSERVATIVE_RASTER_PRE_SNAP`` mode is supported for triangles.
The pre-snap mode means the conservative rasterization occurs before
the conversion from floating-point to fixed-point coordinates.
* ``PIPE_CAP_CONSERVATIVE_RASTER_PRE_SNAP_POINTS_LINES``: Whether the
``PIPE_CONSERVATIVE_RASTER_PRE_SNAP`` mode is supported for points and lines.
* ``PIPE_CAP_CONSERVATIVE_RASTER_POST_DEPTH_COVERAGE``: Whether

11
src/gallium/include/pipe/p_defines.h
View file

@ -644,7 +644,18 @@ enum pipe_reset_status
enum pipe_conservative_raster_mode
{
PIPE_CONSERVATIVE_RASTER_OFF,
/**
* The post-snap mode means the conservative rasterization occurs after
* the conversion from floating-point to fixed-point coordinates
* on the subpixel grid.
*/
PIPE_CONSERVATIVE_RASTER_POST_SNAP,
/**
* The pre-snap mode means the conservative rasterization occurs before
* the conversion from floating-point to fixed-point coordinates.
*/
PIPE_CONSERVATIVE_RASTER_PRE_SNAP,
};