glsl2: Add support for redeclaring layout of gl_FragCoord for ARB_fcc.

Fixes:
glsl-arb-fragment-coord-conventions

1 files changed, 6 insertions, 1 deletions

diff --git a/src/mesa/program/ir_to_mesa.cpp b/src/mesa/program/ir_to_mesa.cpp
index c53381e29d9..a3019cc650a 100644
--- a/src/mesa/program/ir_to_mesa.cpp
+++ b/src/mesa/program/ir_to_mesa.cpp
@@ -557,7 +557,12 @@ ir_to_mesa_visitor::find_variable_storage(ir_variable *var)
 void
 ir_to_mesa_visitor::visit(ir_variable *ir)
 {
-   (void)ir;
+   if (strcmp(ir->name, "gl_FragCoord") == 0) {
+      struct gl_fragment_program *fp = (struct gl_fragment_program *)this->prog;
+
+      fp->OriginUpperLeft = ir->origin_upper_left;
+      fp->PixelCenterInteger = ir->pixel_center_integer;
+   }
 }
 
 void