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authorIago Toral Quiroga <[email protected]>2014-06-05 11:36:56 +0200
committerIago Toral Quiroga <[email protected]>2014-06-30 08:08:49 +0200
commit02fd80e16018d44374063bae703352c464fdec2c (patch)
treeb6e887f9547ec868c671614086c6bc7548e869dd
parentb908e85ed3f1c7601c2e56f85ff676b606af10b5 (diff)
glsl: Fail to link if inter-stage input/outputs are not assigned to stream 0
Outputs that are linked to inputs in the next stage must be output to stream 0, otherwise we should fail to link. Reviewed-by: Ian Romanick <[email protected]>
-rw-r--r--src/glsl/link_varyings.cpp8
1 files changed, 8 insertions, 0 deletions
diff --git a/src/glsl/link_varyings.cpp b/src/glsl/link_varyings.cpp
index 9725a434f45..3b20594873c 100644
--- a/src/glsl/link_varyings.cpp
+++ b/src/glsl/link_varyings.cpp
@@ -1345,6 +1345,14 @@ assign_varying_locations(struct gl_context *ctx,
if (input_var || (prog->SeparateShader && consumer == NULL)) {
matches.record(output_var, input_var);
}
+
+ /* Only stream 0 outputs can be consumed in the next stage */
+ if (input_var && output_var->data.stream != 0) {
+ linker_error(prog, "output %s is assigned to stream=%d but "
+ "is linked to an input, which requires stream=0",
+ output_var->name, output_var->data.stream);
+ return false;
+ }
}
} else {
/* If there's no producer stage, then this must be a separable program.