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glsl: don't demote tess control shader outputs

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Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
This commit is contained in:
Marek Olšák 2014-10-04 00:13:42 +02:00
parent 3a4b87f26d
commit 41acdae2e9
1 changed files with 5 additions and 1 deletions
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6
src/glsl/link_varyings.cpp
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@ -1461,8 +1461,12 @@ assign_varying_locations(struct gl_context *ctx,
/* If a matching input variable was found, add this ouptut (and the
* input) to the set. If this is a separable program and there is no
* consumer stage, add the output.
*
* Always add TCS outputs. They are shared by all invocations
* within a patch and can be used as shared memory.
*/
if (input_var || (prog->SeparateShader && consumer == NULL)) {
if (input_var || (prog->SeparateShader && consumer == NULL) ||
producer->Type == GL_TESS_CONTROL_SHADER) {
matches.record(output_var, input_var);
}