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//
// 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.
//
// RewriteSampleMaskVariable.cpp: Find any references to gl_SampleMask and gl_SampleMaskIn, and
// rewrite it with ANGLESampleMask or ANGLESampleMaskIn.
//
#ifndef COMPILER_TRANSLATOR_TREEUTIL_REWRITESAMPLEMASKVARIABLE_H_
#define COMPILER_TRANSLATOR_TREEUTIL_REWRITESAMPLEMASKVARIABLE_H_
#include "common/angleutils.h"
namespace sh
{
class TCompiler;
class TIntermBlock;
class TSymbolTable;
class TIntermTyped;
// Rewrite every gl_SampleMask or gl_SampleMaskIn to "ANGLESampleMask" or "ANGLESampleMaskIn", then
// at the end of shader re-assign the values of this global variable to gl_SampleMask and
// gl_SampleMaskIn. This to solve the problem which the non constant index is used for the unsized
// array problem.
[[nodiscard]] bool RewriteSampleMask(TCompiler *compiler,
TIntermBlock *root,
TSymbolTable *symbolTable,
const TIntermTyped *numSamplesUniform);
[[nodiscard]] bool RewriteSampleMaskIn(TCompiler *compiler,
TIntermBlock *root,
TSymbolTable *symbolTable);
} // namespace sh
#endif // COMPILER_TRANSLATOR_TREEUTIL_REWRITESAMPLEMASKVARIABLE_H_
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