RemoveInactiveInterfaceVariables.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.

//

// RemoveInactiveInterfaceVariables.h:

//  Drop shader interface variable declarations for those that are inactive.  This step needs to be

//  done after CollectVariables.  This avoids having to emulate them (e.g. atomic counters for

//  Vulkan) or remove them in glslang wrapper (again, for Vulkan).

//

//  Shouldn't be run for the GL backend, as it queries shader interface variables from GL itself,

//  instead of relying on what was gathered during CollectVariables.

//

#ifndef COMPILER_TRANSLATOR_TREEOPS_REMOVEINACTIVEVARIABLES_H_

#define COMPILER_TRANSLATOR_TREEOPS_REMOVEINACTIVEVARIABLES_H_

#include "common/angleutils.h"

namespace sh

struct InterfaceBlock;

struct ShaderVariable;

class TCompiler;

class TIntermBlock;

class TSymbolTable;

[[nodiscard]] bool RemoveInactiveInterfaceVariables(

    TCompiler *compiler,

    TIntermBlock *root,

    TSymbolTable *symbolTable,

    const std::vector<sh::ShaderVariable> &attributes,

    const std::vector<sh::ShaderVariable> &inputVaryings,

    const std::vector<sh::ShaderVariable> &outputVariables,

    const std::vector<sh::ShaderVariable> &uniforms,

    const std::vector<sh::InterfaceBlock> &interfaceBlocks,

    bool removeFragmentOutputs);

}  // namespace sh

#endif  // COMPILER_TRANSLATOR_TREEOPS_REMOVEINACTIVEVARIABLES_H_