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Diffstat (limited to 'src/gallium/docs/source/tgsi.rst')
| -rw-r--r-- | src/gallium/docs/source/tgsi.rst | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/src/gallium/docs/source/tgsi.rst b/src/gallium/docs/source/tgsi.rst index 7771136f167..0116842bfda 100644 --- a/src/gallium/docs/source/tgsi.rst +++ b/src/gallium/docs/source/tgsi.rst @@ -2894,6 +2894,43 @@ and only the X component is used. FIXME: This right now can be either a ordinary input or a system value... +TGSI_SEMANTIC_PATCH +""""""""""""""""""" + +For tessellation evaluation/control shaders, this semantic label indicates a +generic per-patch attribute. Such semantics will not implicitly be per-vertex +arrays. + +TGSI_SEMANTIC_TESSCOORD +""""""""""""""""""""""" + +For tessellation evaluation shaders, this semantic label indicates the +coordinates of the vertex being processed. This is available in XYZ; W is +undefined. + +TGSI_SEMANTIC_TESSOUTER +""""""""""""""""""""""" + +For tessellation evaluation/control shaders, this semantic label indicates the +outer tessellation levels of the patch. Isoline tessellation will only have XY +defined, triangle will have XYZ and quads will have XYZW defined. This +corresponds to gl_TessLevelOuter. + +TGSI_SEMANTIC_TESSINNER +""""""""""""""""""""""" + +For tessellation evaluation/control shaders, this semantic label indicates the +inner tessellation levels of the patch. The X value is only defined for +triangle tessellation, while quads will have XY defined. This is entirely +undefined for isoline tessellation. + +TGSI_SEMANTIC_VERTICESIN +"""""""""""""""""""""""" + +For tessellation evaluation/control shaders, this semantic label indicates the +number of vertices provided in the input patch. Only the X value is defined. + + Declaration Interpolate ^^^^^^^^^^^^^^^^^^^^^^^ |