From: Chris Forbes <chrisf@ijw.co.nz>
Date: Thu, 14 Aug 2014 09:03:53 +0000 (+1200)
Subject: glsl: Mark program as using dFdy if coarse/fine variant is used
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=eba0c54f6229868339ec80f799a6b7b9fb6a05ec;p=mesa.git

glsl: Mark program as using dFdy if coarse/fine variant is used

Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
Reviewed-by: Matt Turner <mattst88@gmail.com>
---

diff --git a/src/glsl/ir_set_program_inouts.cpp b/src/glsl/ir_set_program_inouts.cpp
index 5163eb215df..97ead750aee 100644
--- a/src/glsl/ir_set_program_inouts.cpp
+++ b/src/glsl/ir_set_program_inouts.cpp
@@ -306,7 +306,9 @@ ir_visitor_status
 ir_set_program_inouts_visitor::visit_enter(ir_expression *ir)
 {
    if (this->shader_stage == MESA_SHADER_FRAGMENT &&
-       ir->operation == ir_unop_dFdy) {
+       (ir->operation == ir_unop_dFdy ||
+        ir->operation == ir_unop_dFdy_coarse ||
+        ir->operation == ir_unop_dFdy_fine)) {
       gl_fragment_program *fprog = (gl_fragment_program *) prog;
       fprog->UsesDFdy = true;
    }