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authorStéphane Marchesin <[email protected]>2011-08-26 17:37:25 -0700
committerStéphane Marchesin <[email protected]>2011-08-26 17:37:25 -0700
commitf8e6d19f3f40931be741b44d3edf210c38e13f0f (patch)
treee99e4c619901412ac6448534b0f57ce1c4295c6b /src/gallium/docs/source/tgsi.rst
parent974c49ed176de55aadb335a2956ef5dfec774a23 (diff)
parente3b0e3776646d0367206e4544229622eb22fe9f8 (diff)
Merge branch 'master' of git://anongit.freedesktop.org/mesa/mesa
Diffstat (limited to 'src/gallium/docs/source/tgsi.rst')
-rw-r--r--src/gallium/docs/source/tgsi.rst16
1 files changed, 14 insertions, 2 deletions
diff --git a/src/gallium/docs/source/tgsi.rst b/src/gallium/docs/source/tgsi.rst
index 4debcc6ecc4..039cb1c03d5 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