commit 94ac7b786f2ae1e928ca872e58ca4399df96532a
author Zhenyao Mo <zmo@chromium.org> Wed Oct 15 18:22:08 2014 -0700
committer Zhenyao Mo <zmo@chromium.org> Tue Oct 21 17:31:41 2014 +0000
tree ad567670811b17da0bf68ebf6edd2f9c45c76711
parent f99b0cff3cde430d246b04a3c305df5170fca171

Invariant related processing.

* Fix a bug in PreProcessor for STDGL pragma.
* Record all invariant settings and set them in ShaderVariable.
* Write #pragma STDGL invariant(all) in GL

BUG=angle:776
TEST=https://www.khronos.org/registry/webgl/sdk/tests/conformance/glsl/misc/shaders-with-invariance.html

Change-Id: Ie28b75480deed79f0c9f26e3b98f1778d1290182
Reviewed-on: https://chromium-review.googlesource.com/223610
Tested-by: Zhenyao Mo <zmo@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>

src/compiler/translator/util.h

diff --git a/src/compiler/translator/util.h b/src/compiler/translator/util.h
index 241e2cc..fb53087 100644
--- a/src/compiler/translator/util.h
+++ b/src/compiler/translator/util.h
@@ -24,6 +24,8 @@
 // Return false if overflow happens.
 extern bool atoi_clamp(const char *str, int *value);
 
+class TSymbolTable;
+
 namespace sh
 {
 
@@ -38,7 +40,7 @@
 class GetVariableTraverser
 {
   public:
-    GetVariableTraverser() {}
+    GetVariableTraverser(const TSymbolTable &symbolTable);
 
     template <typename VarT>
     void traverse(const TType &type, const TString &name, std::vector<VarT> *output);
@@ -48,6 +50,14 @@
     virtual void visitVariable(ShaderVariable *newVar) {}
 
   private:
+    // Helper function called by traverse() to fill specific fields
+    // for attributes/varyings/uniforms.
+    template <typename VarT>
+    void setTypeSpecificInfo(
+        const TType &type, const TString &name, VarT *variable) {}
+
+    const TSymbolTable &mSymbolTable;
+
     DISALLOW_COPY_AND_ASSIGN(GetVariableTraverser);
 };