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authorRoland Scheidegger <sroland@vmware.com>2014-11-18 22:46:00 +0100
committerRoland Scheidegger <sroland@vmware.com>2014-11-19 18:35:30 +0100
commit4b6d6642d2c64ce67d65ead480fb99104a7e2d3a (patch)
treeacea1eac94a65c073a4545c0a15960d524a14b21 /src/gallium/auxiliary/draw/draw_vs.c
parent9460cd39e8c74a6a8aba7e5c57bb4929ab135c29 (diff)
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draw: fixes for vertex shaders outputting layer or viewport index
Mostly add a couple cases so we don't just check gs for this. There's only one gotcha, the built-in vp transform in the llvm vs can't handle it (this would be fixable though non-trivial due to vp index being non-constant for the SoA outputs, but we don't use it if there's a gs neither - the whole clip/vp transform integration there is suboptimal). Reviewed-by: Jose Fonseca <jfonseca@vmware.com>
Diffstat (limited to 'src/gallium/auxiliary/draw/draw_vs.c')
-rw-r--r--src/gallium/auxiliary/draw/draw_vs.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/src/gallium/auxiliary/draw/draw_vs.c b/src/gallium/auxiliary/draw/draw_vs.c
index dc50870..f24354e 100644
--- a/src/gallium/auxiliary/draw/draw_vs.c
+++ b/src/gallium/auxiliary/draw/draw_vs.c
@@ -85,7 +85,9 @@ draw_create_vertex_shader(struct draw_context *draw,
vs->info.output_semantic_index[i] == 0) {
found_clipvertex = TRUE;
vs->clipvertex_output = i;
- } else if (vs->info.output_semantic_name[i] == TGSI_SEMANTIC_CLIPDIST) {
+ } else if (vs->info.output_semantic_name[i] == TGSI_SEMANTIC_VIEWPORT_INDEX)
+ vs->viewport_index_output = i;
+ else if (vs->info.output_semantic_name[i] == TGSI_SEMANTIC_CLIPDIST) {
debug_assert(vs->info.output_semantic_index[i] <
PIPE_MAX_CLIP_OR_CULL_DISTANCE_ELEMENT_COUNT);
vs->clipdistance_output[vs->info.output_semantic_index[i]] = i;