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authormarha <marha@users.sourceforge.net>2013-07-09 11:32:22 +0200
committermarha <marha@users.sourceforge.net>2013-07-09 11:32:22 +0200
commitf8f0209a691e0d0838d1ef9d602ebacafee2a233 (patch)
tree591285bbfdecaf92be8bb3fd2291f9f17bc2c822 /mesalib/src/glsl
parentecf91092594b6cd72548f6a675515e84516398ff (diff)
parentc6069c33e3a4a6d48aa059dbe9a78702dabff9cc (diff)
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Merge remote-tracking branch 'origin/released'
* origin/released: fontconfig libX11 libxcb mesa git update 9 Jul 2013
Diffstat (limited to 'mesalib/src/glsl')
-rw-r--r--mesalib/src/glsl/ast_to_hir.cpp30
1 files changed, 19 insertions, 11 deletions
diff --git a/mesalib/src/glsl/ast_to_hir.cpp b/mesalib/src/glsl/ast_to_hir.cpp
index efbd72c18..cbd9ea357 100644
--- a/mesalib/src/glsl/ast_to_hir.cpp
+++ b/mesalib/src/glsl/ast_to_hir.cpp
@@ -2355,17 +2355,25 @@ process_initializer(ir_variable *var, ast_declaration *decl,
ir_constant *constant_value = rhs->constant_expression_value();
if (!constant_value) {
- _mesa_glsl_error(& initializer_loc, state,
- "initializer of %s variable `%s' must be a "
- "constant expression",
- (type->qualifier.flags.q.constant)
- ? "const" : "uniform",
- decl->identifier);
- if (var->type->is_numeric()) {
- /* Reduce cascading errors. */
- var->constant_value = ir_constant::zero(state, var->type);
- }
- } else {
+ /* If ARB_shading_language_420pack is enabled, initializers of
+ * const-qualified local variables do not have to be constant
+ * expressions. Const-qualified global variables must still be
+ * initialized with constant expressions.
+ */
+ if (!state->ARB_shading_language_420pack_enable
+ || state->current_function == NULL) {
+ _mesa_glsl_error(& initializer_loc, state,
+ "initializer of %s variable `%s' must be a "
+ "constant expression",
+ (type->qualifier.flags.q.constant)
+ ? "const" : "uniform",
+ decl->identifier);
+ if (var->type->is_numeric()) {
+ /* Reduce cascading errors. */
+ var->constant_value = ir_constant::zero(state, var->type);
+ }
+ }
+ } else {
rhs = constant_value;
var->constant_value = constant_value;
}