diff options
| author | Dave Airlie <airlied@redhat.com> | 2011-08-25 13:03:19 +0100 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2011-08-26 11:04:15 +0100 |
| commit | 6fb12bf031fdceadebc8a3d7b7756bc822fbf6e4 (patch) | |
| tree | b84fdbb06ab29463d6219e0f414ce29cbb8003f5 | |
| parent | a2c467c0548b658a92af11c063520bc4d027895e (diff) | |
tgsi: update tgsi.rst for TXQ
add some info on the TXQ opcode.
Signed-off-by: Dave Airlie <airlied@redhat.com>
| -rw-r--r-- | src/gallium/docs/source/tgsi.rst | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/src/gallium/docs/source/tgsi.rst b/src/gallium/docs/source/tgsi.rst index 4debcc6ecc..039cb1c03d 100644 --- a/src/gallium/docs/source/tgsi.rst +++ b/src/gallium/docs/source/tgsi.rst @@ -1031,9 +1031,21 @@ XXX so let's discuss it, yeah? TBD -.. opcode:: TXQ - Texture Size Query +.. opcode:: TXQ - Texture Size Query (as per NV_gpu_program4) + retrieve the dimensions of the texture + depending on the target. For 1D (width), 2D/RECT/CUBE + (width, height), 3D (width, height, depth), + 1D array (width, layers), 2D array (width, height, layers) - TBD +.. math:: + + lod = src0 + + dst.x = texture_width(unit, lod) + + dst.y = texture_height(unit, lod) + + dst.z = texture_depth(unit, lod) .. opcode:: CONT - Continue |