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//
// Copyright (c) 2002-2011 The ANGLE Project Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//
#ifndef CROSSCOMPILERGLSL_OUTPUTGLSLBASE_H_
#define CROSSCOMPILERGLSL_OUTPUTGLSLBASE_H_
#include <set>
#include "compiler/translator/ForLoopUnroll.h"
#include "compiler/translator/intermediate.h"
#include "compiler/translator/ParseContext.h"
class TOutputGLSLBase : public TIntermTraverser
{
public:
TOutputGLSLBase(TInfoSinkBase& objSink,
ShArrayIndexClampingStrategy clampingStrategy,
ShHashFunction64 hashFunction,
NameMap& nameMap,
TSymbolTable& symbolTable);
protected:
TInfoSinkBase& objSink() { return mObjSink; }
void writeTriplet(Visit visit, const char* preStr, const char* inStr, const char* postStr);
void writeVariableType(const TType& type);
virtual bool writeVariablePrecision(TPrecision precision) = 0;
void writeFunctionParameters(const TIntermSequence& args);
const ConstantUnion* writeConstantUnion(const TType& type, const ConstantUnion* pConstUnion);
TString getTypeName(const TType& type);
virtual void visitSymbol(TIntermSymbol* node);
virtual void visitConstantUnion(TIntermConstantUnion* node);
virtual bool visitBinary(Visit visit, TIntermBinary* node);
virtual bool visitUnary(Visit visit, TIntermUnary* node);
virtual bool visitSelection(Visit visit, TIntermSelection* node);
virtual bool visitAggregate(Visit visit, TIntermAggregate* node);
virtual bool visitLoop(Visit visit, TIntermLoop* node);
virtual bool visitBranch(Visit visit, TIntermBranch* node);
void visitCodeBlock(TIntermNode* node);
// Return the original name if hash function pointer is NULL;
// otherwise return the hashed name.
TString hashName(const TString& name);
// Same as hashName(), but without hashing built-in variables.
TString hashVariableName(const TString& name);
// Same as hashName(), but without hashing built-in functions.
TString hashFunctionName(const TString& mangled_name);
private:
bool structDeclared(const TStructure* structure) const;
void declareStruct(const TStructure* structure);
TInfoSinkBase& mObjSink;
bool mDeclaringVariables;
// Structs are declared as the tree is traversed. This set contains all
// the structs already declared. It is maintained so that a struct is
// declared only once.
typedef std::set<TString> DeclaredStructs;
DeclaredStructs mDeclaredStructs;
ForLoopUnroll mLoopUnroll;
ShArrayIndexClampingStrategy mClampingStrategy;
// name hashing.
ShHashFunction64 mHashFunction;
NameMap& mNameMap;
TSymbolTable& mSymbolTable;
};
#endif // CROSSCOMPILERGLSL_OUTPUTGLSLBASE_H_
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