RewriteCubeMapSamplersAs2DArray.h

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//

// Copyright 2019 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.

//

// RewriteCubeMapSamplersAs2DArray: Change samplerCube samplers to sampler2DArray, and the

// textureCube* function calls to calls to helper functions that select the cube map face and sample

// from the face as a 2D texture.  This emulates seamful cube map sampling in ES2 (or desktop GL 2)

// and therefore only looks at samplerCube (i.e. not integer variants or cube arrays) and sampling

// functions that are defined in ES GLSL 1.0 (i.e. not the cube overload of texture()).

#ifndef COMPILER_TRANSLATOR_TREEOPS_REWRITECUBEMAPSAMPLERSAS2DARRAY_H_

#define COMPILER_TRANSLATOR_TREEOPS_REWRITECUBEMAPSAMPLERSAS2DARRAY_H_

#include "common/angleutils.h"

namespace sh

class TCompiler;

class TIntermBlock;

class TSymbolTable;

[[nodiscard]] bool RewriteCubeMapSamplersAs2DArray(TCompiler *compiler,

                                                   TIntermBlock *root,

                                                   TSymbolTable *symbolTable,

                                                   bool isFragmentShader);

}  // namespace sh

#endif  // COMPILER_TRANSLATOR_TREEOPS_REWRITECUBEMAPSAMPLERSAS2DARRAY_H_