Compiler.h - mozsearch

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//

// Copyright 2014 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.

//

// Compiler.h: Defines the gl::Compiler class, abstracting the ESSL compiler

// that a GL context holds.

#ifndef LIBANGLE_COMPILER_H_

#define LIBANGLE_COMPILER_H_

#include <vector>

#include "GLSLANG/ShaderLang.h"

#include "common/PackedEnums.h"

#include "libANGLE/Error.h"

#include "libANGLE/RefCountObject.h"

namespace rx

class CompilerImpl;

class GLImplFactory;

}  // namespace rx

namespace gl

class ShCompilerInstance;

class State;

class Compiler final : public RefCountObjectNoID

  public:

    Compiler(rx::GLImplFactory *implFactory, const State &data, egl::Display *display);

    void onDestroy(const Context *context) override;

    ShCompilerInstance getInstance(ShaderType shaderType);

    void putInstance(ShCompilerInstance &&instance);

    ShShaderOutput getShaderOutputType() const { return mOutputType; }

    static ShShaderSpec SelectShaderSpec(const State &state);

  private:

    ~Compiler() override;

    std::unique_ptr<rx::CompilerImpl> mImplementation;

    ShShaderSpec mSpec;

    ShShaderOutput mOutputType;

    ShBuiltInResources mResources;

    ShaderMap<std::vector<ShCompilerInstance>> mPools;

};

class ShCompilerInstance final : public angle::NonCopyable

  public:

    ShCompilerInstance();

    ShCompilerInstance(ShHandle handle, ShShaderOutput outputType, ShaderType shaderType);

    ~ShCompilerInstance();

    void destroy();

    ShCompilerInstance(ShCompilerInstance &&other);

    ShCompilerInstance &operator=(ShCompilerInstance &&other);

    ShHandle getHandle();

    ShaderType getShaderType() const;

    ShBuiltInResources getBuiltInResources() const;

    const std::string &getBuiltinResourcesString() const;

    ShShaderOutput getShaderOutputType() const;

  private:

    ShHandle mHandle;

    ShShaderOutput mOutputType;

    ShaderType mShaderType;

};

}  // namespace gl

#endif  // LIBANGLE_COMPILER_H_