From 5d06d42bbcbf4983bd75f4dd19b89e792698cd14 Mon Sep 17 00:00:00 2001
From: Tim Foley <tfoley@nvidia.com>
Date: Tue, 11 Jul 2017 14:46:12 -0700
Subject: Bug fixes for resources-in-structs.

---
 source/slang/emit.cpp | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

(limited to 'source/slang/emit.cpp')

diff --git a/source/slang/emit.cpp b/source/slang/emit.cpp
index 309a356f4..0c39a98bd 100644
--- a/source/slang/emit.cpp
+++ b/source/slang/emit.cpp
@@ -2812,8 +2812,16 @@ struct EmitVisitor
         // TODO(tfoley): technically have to apply substitution here too...
         if (auto initExpr = declRef.getDecl()->Expr)
         {
-            Emit(" = ");
-            EmitExpr(initExpr);
+            if (declRef.As<ParameterSyntaxNode>()
+                && context->shared->target == CodeGenTarget::GLSL)
+            {
+                // Don't emit default parameter values when lowering to GLSL
+            }
+            else
+            {
+                Emit(" = ");
+                EmitExpr(initExpr);
+            }
         }
     }
 
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