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//
// Copyright (c) 2002-2010 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 _LOCAL_INTERMEDIATE_INCLUDED_
#define _LOCAL_INTERMEDIATE_INCLUDED_
#include "GLSLANG/ShaderLang.h"
#include "compiler/intermediate.h"
#include "compiler/SymbolTable.h"
struct TVectorFields {
int offsets[4];
int num;
};
//
// Set of helper functions to help parse and build the tree.
//
class TInfoSink;
class TIntermediate {
public:
POOL_ALLOCATOR_NEW_DELETE();
TIntermediate(TInfoSink& i) : infoSink(i) { }
TIntermSymbol* addSymbol(int Id, const TString&, const TType&, const TSourceLoc&);
TIntermTyped* addConversion(TOperator, const TType&, TIntermTyped*);
TIntermTyped* addBinaryMath(TOperator op, TIntermTyped* left, TIntermTyped* right, const TSourceLoc&, TSymbolTable&);
TIntermTyped* addAssign(TOperator op, TIntermTyped* left, TIntermTyped* right, const TSourceLoc&);
TIntermTyped* addIndex(TOperator op, TIntermTyped* base, TIntermTyped* index, const TSourceLoc&);
TIntermTyped* addUnaryMath(TOperator op, TIntermNode* child, const TSourceLoc&, TSymbolTable&);
TIntermAggregate* growAggregate(TIntermNode* left, TIntermNode* right, const TSourceLoc&);
TIntermAggregate* makeAggregate(TIntermNode* node, const TSourceLoc&);
TIntermAggregate* setAggregateOperator(TIntermNode*, TOperator, const TSourceLoc&);
TIntermNode* addSelection(TIntermTyped* cond, TIntermNodePair code, const TSourceLoc&);
TIntermTyped* addSelection(TIntermTyped* cond, TIntermTyped* trueBlock, TIntermTyped* falseBlock, const TSourceLoc&);
TIntermTyped* addComma(TIntermTyped* left, TIntermTyped* right, const TSourceLoc&);
TIntermConstantUnion* addConstantUnion(ConstantUnion*, const TType&, const TSourceLoc&);
TIntermTyped* promoteConstantUnion(TBasicType, TIntermConstantUnion*) ;
bool parseConstTree(const TSourceLoc&, TIntermNode*, ConstantUnion*, TOperator, TSymbolTable&, TType, bool singleConstantParam = false);
TIntermNode* addLoop(TLoopType, TIntermNode*, TIntermTyped*, TIntermTyped*, TIntermNode*, const TSourceLoc&);
TIntermBranch* addBranch(TOperator, const TSourceLoc&);
TIntermBranch* addBranch(TOperator, TIntermTyped*, const TSourceLoc&);
TIntermTyped* addSwizzle(TVectorFields&, const TSourceLoc&);
bool postProcess(TIntermNode*);
void remove(TIntermNode*);
void outputTree(TIntermNode*);
private:
void operator=(TIntermediate&); // prevent assignments
TInfoSink& infoSink;
};
#endif // _LOCAL_INTERMEDIATE_INCLUDED_
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