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authorJosé Fonseca <jfonseca@vmware.com>2010-01-08 15:42:57 +0000
committerJosé Fonseca <jfonseca@vmware.com>2010-01-08 15:42:57 +0000
commit080c40ab32b2abd6d8381b4a0cc143d36a1652b2 (patch)
treee173767ebc5a82d81b9fc086449d915e29348976 /src/gallium/docs/source/cso/sampler.rst
parent9cdf6f025b2ed55cfb13dd09f870f01d0c7947d3 (diff)
parenta1de400e8de06a80ab140bb0fa950e990607572d (diff)
Merge remote branch 'origin/master' into lp-binning
Conflicts: src/gallium/auxiliary/util/u_surface.c src/gallium/drivers/llvmpipe/Makefile src/gallium/drivers/llvmpipe/SConscript src/gallium/drivers/llvmpipe/lp_bld_arit.c src/gallium/drivers/llvmpipe/lp_bld_flow.c src/gallium/drivers/llvmpipe/lp_bld_interp.c src/gallium/drivers/llvmpipe/lp_clear.c src/gallium/drivers/llvmpipe/lp_context.c src/gallium/drivers/llvmpipe/lp_context.h src/gallium/drivers/llvmpipe/lp_draw_arrays.c src/gallium/drivers/llvmpipe/lp_jit.c src/gallium/drivers/llvmpipe/lp_jit.h src/gallium/drivers/llvmpipe/lp_prim_vbuf.c src/gallium/drivers/llvmpipe/lp_setup.c src/gallium/drivers/llvmpipe/lp_setup_point.c src/gallium/drivers/llvmpipe/lp_state.h src/gallium/drivers/llvmpipe/lp_state_blend.c src/gallium/drivers/llvmpipe/lp_state_derived.c src/gallium/drivers/llvmpipe/lp_state_fs.c src/gallium/drivers/llvmpipe/lp_state_sampler.c src/gallium/drivers/llvmpipe/lp_state_surface.c src/gallium/drivers/llvmpipe/lp_tex_cache.c src/gallium/drivers/llvmpipe/lp_tex_cache.h src/gallium/drivers/llvmpipe/lp_tex_sample.h src/gallium/drivers/llvmpipe/lp_tile_cache.c
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+.. _sampler:
+
+Sampler
+=======
+
+Texture units have many options for selecting texels from loaded textures;
+this state controls an individual texture unit's texel-sampling settings.
+
+Texture coordinates are always treated as four-dimensional, and referred to
+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
+ How to wrap the T coordinate. One of PIPE_TEX_WRAP.
+wrap_r
+ How to wrap the R coordinate. One of PIPE_TEX_WRAP.
+min_img_filter
+ The filter to use when minifying texels. One of PIPE_TEX_FILTER.
+min_mip_filter
+ The filter to use when minifying mipmapped textures. One of
+ PIPE_TEX_FILTER.
+mag_img_filter
+ The filter to use when magnifying texels. One of PIPE_TEX_FILTER.
+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.
+lod_bias
+ The bias to apply to the level of detail.
+min_lod
+ Minimum level of detail, used to clamp LoD after bias.
+max_lod
+ Maximum level of detail, used to clamp LoD after bias.
+border_color
+ RGBA color used for out-of-bounds coordinates.
+max_anisotropy
+ Maximum filtering to apply anisotropically to textures. Setting this to
+ 1.0 effectively disables anisotropic filtering.