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//
// Copyright (c) 2002-2013 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 COMPILER_INITIALIZE_GL_POSITION_H_
#define COMPILER_INITIALIZE_GL_POSITION_H_
#include "compiler/intermediate.h"
class InitializeGLPosition : public TIntermTraverser
{
public:
InitializeGLPosition() : mCodeInserted(false) { }
protected:
virtual bool visitBinary(Visit visit, TIntermBinary* node) { return false; }
virtual bool visitUnary(Visit visit, TIntermUnary* node) { return false; }
virtual bool visitSelection(Visit visit, TIntermSelection* node) { return false; }
virtual bool visitLoop(Visit visit, TIntermLoop* node) { return false; }
virtual bool visitBranch(Visit visit, TIntermBranch* node) { return false; }
virtual bool visitAggregate(Visit visit, TIntermAggregate* node);
private:
// Insert AST node in the beginning of main() for "gl_Position = vec4(0.0, 0.0, 0.0, 1.0);".
void insertCode(TIntermSequence& sequence);
bool mCodeInserted;
};
#endif // COMPILER_INITIALIZE_GL_POSITION_H_
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