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authorKeith Whitwell <[email protected]>2009-12-09 19:03:10 +0100
committerRoland Scheidegger <[email protected]>2009-12-09 19:03:10 +0100
commita08e348a84f57ed5e8bf5888f1ce13934d2ce8fa (patch)
tree595ffc983588c5441c39ff11c3a089e521f94e53 /src/gallium/auxiliary/draw/draw_pt.c
parent59f6af51b858340139fe2139e2698fef8a5ad62f (diff)
gallium: first steps to treat edgeflags as regular vertex element
The idea here is to eliminate the set_edgeflags() call in pipe_context by treating edgeflags as a regular vertex element. Edgeflags provoke special treatment in hardware, which means we need to label them in some way, in this case we'll be passing them through the vertex shader and labelling the vertex shader output with a new TGSI semantic (TGSI_SEMANTIC_EDGEFLAG).
Diffstat (limited to 'src/gallium/auxiliary/draw/draw_pt.c')
-rw-r--r--src/gallium/auxiliary/draw/draw_pt.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/src/gallium/auxiliary/draw/draw_pt.c b/src/gallium/auxiliary/draw/draw_pt.c
index 4865a2d8542..139ae1fe552 100644
--- a/src/gallium/auxiliary/draw/draw_pt.c
+++ b/src/gallium/auxiliary/draw/draw_pt.c
@@ -318,8 +318,10 @@ draw_arrays(struct draw_context *draw, unsigned prim,
boolean draw_pt_get_edgeflag( struct draw_context *draw,
unsigned idx )
{
- if (draw->pt.user.edgeflag)
+ if (draw->pt.user.edgeflag) {
+ float *ef = draw->pt.verted_buffer[idx]
return (draw->pt.user.edgeflag[idx/32] & (1 << (idx%32))) != 0;
+ }
else
return 1;
}