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Diffstat (limited to 'src/gallium/docs/source/tgsi.rst')
| -rw-r--r-- | src/gallium/docs/source/tgsi.rst | 24 |
1 files changed, 15 insertions, 9 deletions
diff --git a/src/gallium/docs/source/tgsi.rst b/src/gallium/docs/source/tgsi.rst index 039cdaecf19..6a1cb7e2e2c 100644 --- a/src/gallium/docs/source/tgsi.rst +++ b/src/gallium/docs/source/tgsi.rst @@ -1559,19 +1559,11 @@ of TGSI_FILE. UsageMask field specifies which of the register components can be accessed and is one of TGSI_WRITEMASK. -Interpolate field is only valid for fragment shader INPUT register files. -It specifes the way input is being interpolated by the rasteriser and is one -of TGSI_INTERPOLATE. - If Dimension flag is set to 1, a Declaration Dimension token follows. If Semantic flag is set to 1, a Declaration Semantic token follows. -CylindricalWrap bitfield is only valid for fragment shader INPUT register -files. It specifies which register components should be subject to cylindrical -wrapping when interpolating by the rasteriser. If TGSI_CYLINDRICAL_WRAP_X -is set to 1, the X component should be interpolated according to cylindrical -wrapping rules. +If Interpolate flag is set to 1, a Declaration Interpolate token follows. If file is TGSI_FILE_RESOURCE, a Declaration Resource token follows. @@ -1718,6 +1710,20 @@ is a writable stencil reference value. Only the Y component is writable. This allows the fragment shader to change the fragments stencilref value. +Declaration Interpolate +^^^^^^^^^^^^^^^^^^^^^^^ + +This token is only valid for fragment shader INPUT declarations. + +The Interpolate field specifes the way input is being interpolated by +the rasteriser and is one of TGSI_INTERPOLATE_*. + +The CylindricalWrap bitfield specifies which register components +should be subject to cylindrical wrapping when interpolating by the +rasteriser. If TGSI_CYLINDRICAL_WRAP_X is set to 1, the X component +should be interpolated according to cylindrical wrapping rules. + + Declaration Sampler View ^^^^^^^^^^^^^^^^^^^^^^^^ |