//
// Copyright 2020 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.
//
// FlipRotationSpecConst.h: Add code to generate AST node for flip and rotation matrices and
// vectors.
//

#ifndef COMPILER_TRANSLATOR_TREEUTIL_FLIPROTATESPECCONST_H_
#define COMPILER_TRANSLATOR_TREEUTIL_FLIPROTATESPECCONST_H_

#include "common/angleutils.h"
#include "compiler/translator/Compiler.h"
#include "compiler/translator/SymbolTable.h"

class TIntermTyped;
class TIntermSymbol;
class TVariable;

namespace sh
{

class FlipRotateSpecConst
{
  public:
    FlipRotateSpecConst();
    ~FlipRotateSpecConst();

    TIntermTyped *getMultiplierXForDFdx();
    TIntermTyped *getMultiplierYForDFdx();
    TIntermTyped *getMultiplierXForDFdy();
    TIntermTyped *getMultiplierYForDFdy();
    TIntermTyped *getPreRotationMatrix();
    TIntermTyped *getFragRotationMatrix();
    TIntermTyped *getFlipXY();
    TIntermTyped *getNegFlipXY();
    TIntermTyped *getFlipY();
    TIntermTyped *getNegFlipY();
    TIntermTyped *getFragRotationMultiplyFlipXY();

    void generateSymbol(TSymbolTable *symbolTable);
    void outputLayoutString(TInfoSinkBase &sink) const;
    SpecConstUsageBits getSpecConstUsageBits() const { return mUsageBits; }

  private:
    TIntermSymbol *mSpecConstSymbol;
    // Bit is set if YFlip or Rotation has been used
    SpecConstUsageBits mUsageBits;
};
}  // namespace sh

#endif  // COMPILER_TRANSLATOR_TREEUTIL_FLIPROTATESPECCONST_H_
