Add a new TIntermRaw node type to translator.

src/compiler/translator/IntermTraverse.cpp

@@ -257,3 +257,7 @@ void TIntermBranch::traverse(TIntermTraverser *it)
         it->visitBranch(PostVisit, this);
 }
 
+void TIntermRaw::traverse(TIntermTraverser *it)
+{
+    it->visitRaw(this);
+}

src/compiler/translator/OutputHLSL.cpp

@@ -1850,6 +1850,11 @@ void OutputHLSL::visitSymbol(TIntermSymbol *node)
     }
 }
 
+void OutputHLSL::visitRaw(TIntermRaw *node)
+{
+    mBody << node->getRawText();
+}
+
 bool OutputHLSL::visitBinary(Visit visit, TIntermBinary *node)
 {
     TInfoSinkBase &out = mBody;

src/compiler/translator/OutputHLSL.h

@@ -55,6 +55,7 @@ class OutputHLSL : public TIntermTraverser
 
     // Visit AST nodes and output their code to the body stream
     void visitSymbol(TIntermSymbol*);
+    void visitRaw(TIntermRaw*);
     void visitConstantUnion(TIntermConstantUnion*);
     bool visitBinary(Visit visit, TIntermBinary*);
     bool visitUnary(Visit visit, TIntermUnary*);

src/compiler/translator/intermediate.h

@@ -211,6 +211,7 @@ class TIntermTyped;
 class TIntermSymbol;
 class TIntermLoop;
 class TInfoSink;
+class TIntermRaw;
 
 //
 // Base class for the tree nodes
@@ -238,6 +239,7 @@ public:
     virtual TIntermSelection* getAsSelectionNode() { return 0; }
     virtual TIntermSymbol* getAsSymbolNode() { return 0; }
     virtual TIntermLoop* getAsLoopNode() { return 0; }
+    virtual TIntermRaw* getAsRawNode() { return 0; }
 
     // Replace a child node. Return true if |original| is a child
     // node and it is replaced; otherwise, return false.
@@ -397,6 +399,29 @@ protected:
     TString symbol;
 };
 
+// A Raw node stores raw code, that the translator will insert verbatim
+// into the output stream. Useful for transformation operations that make
+// complex code that might not fit naturally into the GLSL model.
+class TIntermRaw : public TIntermTyped {
+public:
+    TIntermRaw(const TType &t, const TString &rawTextIn)
+        : TIntermTyped(t), rawText(rawTextIn)
+    {}
+
+    virtual bool hasSideEffects() const { return false; }
+
+    TString getRawText() const { return rawText; }
+
+    virtual void traverse(TIntermTraverser*);
+
+    virtual TIntermRaw* getAsRawNode() { return this; }
+    virtual bool replaceChildNode(TIntermNode *, TIntermNode *) { return false; }
+    virtual void enqueueChildren(std::queue<TIntermNode*> *nodeQueue) const {}
+
+protected:
+    TString rawText;
+};
+
 class TIntermConstantUnion : public TIntermTyped {
 public:
     TIntermConstantUnion(ConstantUnion *unionPointer, const TType& t) : TIntermTyped(t), unionArrayPointer(unionPointer) { }
@@ -619,6 +644,7 @@ public:
     virtual ~TIntermTraverser() {}
 
     virtual void visitSymbol(TIntermSymbol*) {}
+    virtual void visitRaw(TIntermRaw*) {}
     virtual void visitConstantUnion(TIntermConstantUnion*) {}
     virtual bool visitBinary(Visit visit, TIntermBinary*) {return true;}
     virtual bool visitUnary(Visit visit, TIntermUnary*) {return true;}