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//

// Copyright 2002 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.

//

// Fence.h: Defines the gl::FenceNV and gl::Sync classes, which support the GL_NV_fence

// extension and GLES3 sync objects.

#ifndef LIBANGLE_FENCE_H_

#define LIBANGLE_FENCE_H_

#include "libANGLE/Debug.h"

#include "libANGLE/Error.h"

#include "libANGLE/RefCountObject.h"

#include "common/angleutils.h"

namespace rx

class GLImplFactory;

class FenceNVImpl;

class SyncImpl;

}  // namespace rx

namespace gl

class FenceNV final : angle::NonCopyable

  public:

    explicit FenceNV(rx::GLImplFactory *factory);

    virtual ~FenceNV();

    void onDestroy(const gl::Context *context);

    angle::Result set(const Context *context, GLenum condition);

    angle::Result test(const Context *context, GLboolean *outResult);

    angle::Result finish(const Context *context);

    bool isSet() const { return mIsSet; }

    GLboolean getStatus() const { return mStatus; }

    GLenum getCondition() const { return mCondition; }

  private:

    rx::FenceNVImpl *mFence;

    bool mIsSet;

    GLboolean mStatus;

    GLenum mCondition;

};

class Sync final : public RefCountObject<GLuint>, public LabeledObject

  public:

    Sync(rx::GLImplFactory *factory, GLuint id);

    ~Sync() override;

    void onDestroy(const Context *context) override;

    angle::Result setLabel(const Context *context, const std::string &label) override;

    const std::string &getLabel() const override;

    angle::Result set(const Context *context, GLenum condition, GLbitfield flags);

    angle::Result clientWait(const Context *context,

                             GLbitfield flags,

                             GLuint64 timeout,

                             GLenum *outResult);

    angle::Result serverWait(const Context *context, GLbitfield flags, GLuint64 timeout);

    angle::Result getStatus(const Context *context, GLint *outResult) const;

    GLenum getCondition() const { return mCondition; }

    GLbitfield getFlags() const { return mFlags; }

    rx::SyncImpl *getImplementation() const { return mFence; }

  private:

    rx::SyncImpl *mFence;

    std::string mLabel;

    GLenum mCondition;

    GLbitfield mFlags;

};

}  // namespace gl

#endif  // LIBANGLE_FENCE_H_