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authorZack Rusin <[email protected]>2013-06-06 09:04:11 -0400
committerZack Rusin <[email protected]>2013-06-10 22:04:28 -0400
commit3d08eada3450aa8801aed194afea99c816dd71f0 (patch)
tree58e2e1f5f9f7d23dc3ce99418022b9178f8b0a34 /src/gallium/auxiliary/tgsi/tgsi_strings.c
parent0a3779d95537343505200ad096acf135dcd81b80 (diff)
gallium: add a cull distance semantic
cull distance is analogous to clip distance. If a register is given this semantic, then the values in it are assumed to be a float32 distance to a plane. Primitives will be completely discarded if the plane distance for all of the vertices in the primitive are < 0. Signed-off-by: Zack Rusin <[email protected]> Reviewed-by: Jose Fonseca <[email protected]> Reviewed-by: Brian Paul <[email protected]> Reviewed-by: Roland Scheidegger <[email protected]>
Diffstat (limited to 'src/gallium/auxiliary/tgsi/tgsi_strings.c')
-rw-r--r--src/gallium/auxiliary/tgsi/tgsi_strings.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/gallium/auxiliary/tgsi/tgsi_strings.c b/src/gallium/auxiliary/tgsi/tgsi_strings.c
index 27856767877..6f244e5142f 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_strings.c
+++ b/src/gallium/auxiliary/tgsi/tgsi_strings.c
@@ -80,7 +80,8 @@ const char *tgsi_semantic_names[TGSI_SEMANTIC_COUNT] =
"TEXCOORD",
"PCOORD",
"VIEWPORT_INDEX",
- "LAYER"
+ "LAYER",
+ "CULLDIST"
};
const char *tgsi_texture_names[TGSI_TEXTURE_COUNT] =