RewriteStructSamplers.h

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//

// Copyright 2018 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.

//

// RewriteStructSamplers: Extract structs from samplers.

//

// This traverser is designed to strip out samplers from structs. It moves them into separate

// uniform sampler declarations. This allows the struct to be stored in the default uniform block.

// This transformation requires MonomorphizeUnsupportedFunctions to have been run so it

// wouldn't need to deal with functions that are passed such structs.

//

// For example:

//   struct S { sampler2D samp; int i; };

//   uniform S uni;

// Is rewritten as:

//   struct S { int i; };

//   uniform S uni;

//   uniform sampler2D uni_i;

#ifndef COMPILER_TRANSLATOR_TREEOPS_REWRITESTRUCTSAMPLERS_H_

#define COMPILER_TRANSLATOR_TREEOPS_REWRITESTRUCTSAMPLERS_H_

#include "common/angleutils.h"

namespace sh

class TCompiler;

class TIntermBlock;

class TSymbolTable;

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

                                         TIntermBlock *root,

                                         TSymbolTable *symbolTable,

                                         int *removedUniformsCountOut);

}  // namespace sh

#endif  // COMPILER_TRANSLATOR_TREEOPS_VULKAN_REWRITESTRUCTSAMPLERS_H_