From: Marek Olšák Date: Fri, 19 Apr 2019 23:11:34 +0000 (-0400) Subject: gallium: document conservative rasterization flags X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=d9838f653a48e06d1518aca86613f27f2c2293ac;p=mesa.git gallium: document conservative rasterization flags Reviewed-by: Kenneth Graunke --- diff --git a/src/gallium/docs/source/screen.rst b/src/gallium/docs/source/screen.rst index 59c0103539c..fcb16aebe2d 100644 --- a/src/gallium/docs/source/screen.rst +++ b/src/gallium/docs/source/screen.rst @@ -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 diff --git a/src/gallium/include/pipe/p_defines.h b/src/gallium/include/pipe/p_defines.h index 61c1a5335b5..304c3dcb2bb 100644 --- a/src/gallium/include/pipe/p_defines.h +++ b/src/gallium/include/pipe/p_defines.h @@ -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, };