From: Chad Versace <chad.vers...@intel.com>
When validating a global variable in the linking stage, verify that each of
the layout qualifiers below is identical among all instances of the
global variable:
- origin_upper_left
- pixel_center_integer
---
src/glsl/linker.cpp | 12 ++++++++++++
1 files changed, 12 insertions(+), 0 deletions(-)
diff --git a/src/glsl/linker.cpp b/src/glsl/linker.cpp
index 616ec78..5398272 100644
--- a/src/glsl/linker.cpp
+++ b/src/glsl/linker.cpp
@@ -385,6 +385,18 @@ cross_validate_globals(struct gl_shader_program *prog,
existing->explicit_location = true;
}
+ /* Verify that each of the layout qualifiers below is identical
among
+ * all instances of the variable.
+ */
+ if ((var->origin_upper_left != existing->origin_upper_left)
+ || (var->pixel_center_integer !=
existing->pixel_center_integer))
+ {
+ linker_error_printf(prog, "layout qualifiers for %s '%s' "
+ "do not match\n",
+ mode_string(var), var->name);
+ return false;
+ }
+
/* FINISHME: Handle non-constant initializers.
*/
if (var->constant_value != NULL) {
--
1.7.1
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