diff options
| author | Roland Scheidegger <[email protected]> | 2010-01-21 20:22:24 +0100 |
|---|---|---|
| committer | Roland Scheidegger <[email protected]> | 2010-01-21 20:22:24 +0100 |
| commit | c6c9d3b0914e2c3d8585123055c97d8ac3452fe5 (patch) | |
| tree | 24812ba9aff9cdb9e88a1522f0f4b6e20d515eaf /src/gallium | |
| parent | eba1e2a44718bea398e49d496a78ee002c9922b8 (diff) | |
docs: clean up sampler description
Diffstat (limited to 'src/gallium')
| -rw-r--r-- | src/gallium/docs/source/cso/sampler.rst | 10 | ||||
| -rw-r--r-- | src/gallium/include/pipe/p_state.h | 2 |
2 files changed, 8 insertions, 4 deletions
diff --git a/src/gallium/docs/source/cso/sampler.rst b/src/gallium/docs/source/cso/sampler.rst index e3f1757f57a..8b67ca57f12 100644 --- a/src/gallium/docs/source/cso/sampler.rst +++ b/src/gallium/docs/source/cso/sampler.rst @@ -12,8 +12,6 @@ with the traditional (S, T, R, Q) notation. Members ------- -XXX undocumented compare_mode, compare_func - wrap_s How to wrap the S coordinate. One of PIPE_TEX_WRAP. wrap_t @@ -27,12 +25,18 @@ min_mip_filter PIPE_TEX_FILTER. mag_img_filter The filter to use when magnifying texels. One of PIPE_TEX_FILTER. +compare_mode + If set to PIPE_TEX_COMPARE_R_TO_TEXTURE, texture output is computed + according to compare_func, using r coord and the texture value as operands. + If set to PIPE_TEX_COMPARE_NONE, no comparison calculation is performed. +compare_func + How the comparison is computed. One of PIPE_FUNC. normalized_coords Whether the texture coordinates are normalized. If normalized, they will always be in [0, 1]. If not, they will be in the range of each dimension of the loaded texture. prefilter - XXX From the Doxy, "weird sampling state exposed by some APIs." Refine. + Cylindrical texcoord wrap enable per coord. Not exposed by most APIs. lod_bias The bias to apply to the level of detail. min_lod diff --git a/src/gallium/include/pipe/p_state.h b/src/gallium/include/pipe/p_state.h index 3c217645ab4..b9ac2db5915 100644 --- a/src/gallium/include/pipe/p_state.h +++ b/src/gallium/include/pipe/p_state.h @@ -274,7 +274,7 @@ struct pipe_sampler_state unsigned compare_mode:1; /**< PIPE_TEX_COMPARE_x */ unsigned compare_func:3; /**< PIPE_FUNC_x */ unsigned normalized_coords:1; /**< Are coords normalized to [0,1]? */ - unsigned prefilter:4; /**< Wierd sampling state exposed by some api's */ + unsigned prefilter:4; /**< Cylindrical texcoord wrap, per coord, exposed by some api's */ float lod_bias; /**< LOD/lambda bias */ float min_lod, max_lod; /**< LOD clamp range, after bias */ float border_color[4]; |