From 0a7aebadfbb3534284546aa3ca8612314c08f136 Mon Sep 17 00:00:00 2001
From: Miguel Costa <miguel.costa@qt.io>
Date: Tue, 26 Jun 2018 16:56:45 +0200
Subject: Update ANGLE to chromium/3280

Change-Id: I0802c0d7486f772d361f87a544d6c5af937f4ca1
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>
---
 .../src/compiler/translator/InitializeVariables.h  | 76 +++++++++++-----------
 1 file changed, 39 insertions(+), 37 deletions(-)

(limited to 'src/3rdparty/angle/src/compiler/translator/InitializeVariables.h')

diff --git a/src/3rdparty/angle/src/compiler/translator/InitializeVariables.h b/src/3rdparty/angle/src/compiler/translator/InitializeVariables.h
index 2a141ec91c..1a7b3c0f24 100644
--- a/src/3rdparty/angle/src/compiler/translator/InitializeVariables.h
+++ b/src/3rdparty/angle/src/compiler/translator/InitializeVariables.h
@@ -7,45 +7,47 @@
 #ifndef COMPILER_TRANSLATOR_INITIALIZEVARIABLES_H_
 #define COMPILER_TRANSLATOR_INITIALIZEVARIABLES_H_
 
+#include <GLSLANG/ShaderLang.h>
+
+#include "compiler/translator/ExtensionBehavior.h"
 #include "compiler/translator/IntermNode.h"
 
-class InitializeVariables : public TIntermTraverser
+namespace sh
 {
-  public:
-    struct InitVariableInfo
-    {
-        TString name;
-        TType type;
-
-        InitVariableInfo(const TString &_name, const TType &_type)
-            : name(_name),
-              type(_type)
-        {
-        }
-    };
-    typedef TVector<InitVariableInfo> InitVariableInfoList;
-
-    InitializeVariables(const InitVariableInfoList &vars)
-        : TIntermTraverser(true, false, false),
-          mVariables(vars),
-          mCodeInserted(false)
-    {
-    }
-
-  protected:
-    bool visitBinary(Visit, TIntermBinary *node) override { return false; }
-    bool visitUnary(Visit, TIntermUnary *node) override { return false; }
-    bool visitSelection(Visit, TIntermSelection *node) override { return false; }
-    bool visitLoop(Visit, TIntermLoop *node) override { return false; }
-    bool visitBranch(Visit, TIntermBranch *node) override { return false; }
-
-    bool visitAggregate(Visit visit, TIntermAggregate *node) override;
-
-  private:
-    void insertInitCode(TIntermSequence *sequence);
-
-    InitVariableInfoList mVariables;
-    bool mCodeInserted;
-};
+class TSymbolTable;
+
+typedef std::vector<sh::ShaderVariable> InitVariableList;
+
+// For all of the functions below: If canUseLoopsToInitialize is set, for loops are used instead of
+// a large number of initializers where it can make sense, such as for initializing large arrays.
+
+// Return a sequence of assignment operations to initialize "initializedSymbol". initializedSymbol
+// may be an array, struct or any combination of these, as long as it contains only basic types.
+TIntermSequence *CreateInitCode(const TIntermTyped *initializedSymbol,
+                                bool canUseLoopsToInitialize,
+                                TSymbolTable *symbolTable);
+
+// Initialize all uninitialized local variables, so that undefined behavior is avoided.
+void InitializeUninitializedLocals(TIntermBlock *root,
+                                   int shaderVersion,
+                                   bool canUseLoopsToInitialize,
+                                   TSymbolTable *symbolTable);
+
+// This function can initialize all the types that CreateInitCode is able to initialize. All
+// variables must be globals which can be found in the symbol table. For now it is used for the
+// following two scenarios:
+//   1. Initializing gl_Position;
+//   2. Initializing output variables referred to in the shader source.
+// Note: The type of each lvalue in an initializer is retrieved from the symbol table. gl_FragData
+// requires special handling because the number of indices which can be initialized is determined by
+// enabled extensions.
+void InitializeVariables(TIntermBlock *root,
+                         const InitVariableList &vars,
+                         TSymbolTable *symbolTable,
+                         int shaderVersion,
+                         const TExtensionBehavior &extensionBehavior,
+                         bool canUseLoopsToInitialize);
+
+}  // namespace sh
 
 #endif  // COMPILER_TRANSLATOR_INITIALIZEVARIABLES_H_
-- 
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