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Diffstat (limited to 'src/gallium/docs/source/tgsi.rst')
| -rw-r--r-- | src/gallium/docs/source/tgsi.rst | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/gallium/docs/source/tgsi.rst b/src/gallium/docs/source/tgsi.rst index 9e02d43ab74..d99ed7c6d6b 100644 --- a/src/gallium/docs/source/tgsi.rst +++ b/src/gallium/docs/source/tgsi.rst @@ -1415,6 +1415,12 @@ Edge flags are used to control which lines or points are actually drawn when the polygon mode converts triangles/quads/polygons into points or lines. +TGSI_SEMANTIC_STENCIL +"""""""""""""""""""""" + +For fragment shaders, this semantic label indicates than an output +is a writable stencil reference value. Only the Y component is writable. +This allows the fragment shader to change the fragments stencilref value. Properties @@ -1493,6 +1499,8 @@ well. | Z | XXX TBD | (z, z, z, 1) | (0, z, 0, 1) | | | | [#depth-tex-mode]_ | | +--------------------+--------------+--------------------+--------------+ +| S | (s, s, s, s) | unknown | unknown | ++--------------------+--------------+--------------------+--------------+ .. [#envmap-bumpmap] http://www.opengl.org/registry/specs/ATI/envmap_bumpmap.txt .. [#depth-tex-mode] the default is (z, z, z, 1) but may also be (0, 0, 0, z) |