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Diffstat (limited to 'src/gallium/docs/source/tgsi.rst')
| -rw-r--r-- | src/gallium/docs/source/tgsi.rst | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/src/gallium/docs/source/tgsi.rst b/src/gallium/docs/source/tgsi.rst index 6a1cb7e2e2c..eb8be46e354 100644 --- a/src/gallium/docs/source/tgsi.rst +++ b/src/gallium/docs/source/tgsi.rst @@ -1745,7 +1745,7 @@ Declaration Resource Follows Declaration token if file is TGSI_FILE_RESOURCE. - DCL RES[#], resource + DCL RES[#], resource [, RAW] Declares a shader input resource and assigns it to a RES[#] register. @@ -1753,6 +1753,19 @@ Declaration Resource resource can be one of BUFFER, 1D, 2D, 3D, CUBE, 1DArray and 2DArray. + If the RAW keyword is not specified, the texture data will be + subject to conversion, swizzling and scaling as required to yield + the specified data type from the physical data format of the bound + resource. + + If the RAW keyword is specified, no channel conversion will be + performed: the values read for each of the channels (X,Y,Z,W) will + correspond to consecutive words in the same order and format + they're found in memory. No element-to-address conversion will be + performed either: the value of the provided X coordinate will be + interpreted in byte units instead of texel units. The result of + accessing a misaligned address is undefined. + Properties ^^^^^^^^^^^^^^^^^^^^^^^^ |