[Mesa-dev] [PATCH 2/2] glsl: don't generate transform feedback candidate when not required
Timothy Arceri
timothy.arceri at collabora.com
Tue Feb 2 23:26:08 UTC 2016
If we are not even looking for one don't bother generating a candidate
list.
---
src/compiler/glsl/link_varyings.cpp | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/src/compiler/glsl/link_varyings.cpp b/src/compiler/glsl/link_varyings.cpp
index 729db78..e5c076a 100644
--- a/src/compiler/glsl/link_varyings.cpp
+++ b/src/compiler/glsl/link_varyings.cpp
@@ -1808,8 +1808,10 @@ assign_varying_locations(struct gl_context *ctx,
(output_var->data.stream < MAX_VERTEX_STREAMS &&
producer->Stage == MESA_SHADER_GEOMETRY));
- tfeedback_candidate_generator g(mem_ctx, tfeedback_candidates);
- g.process(output_var);
+ if (num_tfeedback_decls > 0) {
+ tfeedback_candidate_generator g(mem_ctx, tfeedback_candidates);
+ g.process(output_var);
+ }
ir_variable *const input_var =
linker::get_matching_input(mem_ctx, output_var, consumer_inputs,
--
2.5.0
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