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st/mesa: add support for clip vertex.

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We need to pass the pre-projection matrix clip planes into the driver,
instead of the post for the case we have a vertex shader that writes clip
vertex.

Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Dave Airlie
2012-01-04 11:49:26 +00:00
parent 9cea86f501
commit a103c61d27
2 changed files with 18 additions and 6 deletions
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4
src/mesa/state_tracker/st_program.c
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@@ -255,6 +255,10 @@ st_prepare_vertex_program(struct gl_context *ctx,
case VERT_RESULT_EDGE:
assert(0);
break;
case VERT_RESULT_CLIP_VERTEX:
stvp->output_semantic_name[slot] = TGSI_SEMANTIC_CLIPVERTEX;
stvp->output_semantic_index[slot] = 0;
break;
case VERT_RESULT_TEX0:
case VERT_RESULT_TEX1: