diff options
Diffstat (limited to 'src/gallium/docs')
| -rw-r--r-- | src/gallium/docs/source/cso/sampler.rst | 6 | ||||
| -rw-r--r-- | src/gallium/docs/source/screen.rst | 11 |
2 files changed, 15 insertions, 2 deletions
diff --git a/src/gallium/docs/source/cso/sampler.rst b/src/gallium/docs/source/cso/sampler.rst index 26ffc181031..9959793a332 100644 --- a/src/gallium/docs/source/cso/sampler.rst +++ b/src/gallium/docs/source/cso/sampler.rst @@ -101,7 +101,9 @@ max_lod border_color Color union used for texel coordinates that are outside the [0,width-1], [0, height-1] or [0, depth-1] ranges. Interpreted according to sampler - view format. + view format, unless the driver reports + PIPE_CAP_TEXTURE_BORDER_COLOR_QUIRK, in which case special care has to be + taken (see description of the cap). max_anisotropy Maximum anistropy ratio to use when sampling from textures. For example, if max_anistropy=4, a region of up to 1 by 4 texels will be sampled. @@ -111,4 +113,4 @@ max_anisotropy seamless_cube_map If set, the bilinear filter of a cube map may take samples from adjacent cube map faces when sampled near a texture border to produce a seamless - look.
\ No newline at end of file + look. diff --git a/src/gallium/docs/source/screen.rst b/src/gallium/docs/source/screen.rst index 4b01d77322e..3ab7e9e6906 100644 --- a/src/gallium/docs/source/screen.rst +++ b/src/gallium/docs/source/screen.rst @@ -151,6 +151,17 @@ The integer capabilities: dedicated memory should return 1 and all software rasterizers should return 0. * ``PIPE_CAP_QUERY_PIPELINE_STATISTICS``: Whether PIPE_QUERY_PIPELINE_STATISTICS is supported. +* ``PIPE_CAP_TEXTURE_BORDER_COLOR_QUIRK``: Bitmask indicating whether special + considerations have to be given to the interaction between the border color + in the sampler object and the sampler view used with it. + If PIPE_QUIRK_TEXTURE_BORDER_COLOR_SWIZZLE_R600 is set, the border color + may be affected in undefined ways for any kind of permutational swizzle + (any swizzle XYZW where X/Y/Z/W are not ZERO, ONE, or R/G/B/A respectively) + in the sampler view. + If PIPE_QUIRK_TEXTURE_BORDER_COLOR_SWIZZLE_NV50 is set, the border color + state should be swizzled manually according to the swizzle in the sampler + view it is intended to be used with, or herein undefined results may occur + for permutational swizzles. .. _pipe_capf: |