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/* -*- Mode: c++; c-basic-offset: 4; indent-tabs-mode: nil; tab-width: 4; -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef SHARED_SURFACE_ANGLE_H_
#define SHARED_SURFACE_ANGLE_H_

#include <windows.h>
#include "SharedSurface.h"

struct IDXGIKeyedMutex;
struct ID3D11Texture2D;

namespace mozilla {
namespace gl {

class GLContext;
class GLLibraryEGL;

class SharedSurface_ANGLEShareHandle : public SharedSurface {
 public:
  static UniquePtr<SharedSurface_ANGLEShareHandle> Create(
      GLContext* gl, EGLConfig config, const gfx::IntSize& size, bool hasAlpha);

  static SharedSurface_ANGLEShareHandle* Cast(SharedSurface* surf) {
    MOZ_ASSERT(surf->mType == SharedSurfaceType::EGLSurfaceANGLE);

    return (SharedSurface_ANGLEShareHandle*)surf;
  }

 protected:
  GLLibraryEGL* const mEGL;
  const EGLSurface mPBuffer;

 public:
  const HANDLE mShareHandle;

 protected:
  RefPtr<IDXGIKeyedMutex> mKeyedMutex;

  SharedSurface_ANGLEShareHandle(GLContext* gl, GLLibraryEGL* egl,
                                 const gfx::IntSize& size, bool hasAlpha,
                                 EGLSurface pbuffer, HANDLE shareHandle,
                                 const RefPtr<IDXGIKeyedMutex>& keyedMutex);

  EGLDisplay Display();

 public:
  virtual ~SharedSurface_ANGLEShareHandle();

  virtual void LockProdImpl() override;
  virtual void UnlockProdImpl() override;

  virtual void ProducerAcquireImpl() override;
  virtual void ProducerReleaseImpl() override;
  virtual void ProducerReadAcquireImpl() override;
  virtual void ProducerReadReleaseImpl() override;

  virtual bool ToSurfaceDescriptor(
      layers::SurfaceDescriptor* const out_descriptor) override;

  virtual bool ReadbackBySharedHandle(
      gfx::DataSourceSurface* out_surface) override;
};

class SurfaceFactory_ANGLEShareHandle : public SurfaceFactory {
 protected:
  GLContext* const mProdGL;
  GLLibraryEGL* const mEGL;
  const EGLConfig mConfig;

 public:
  static UniquePtr<SurfaceFactory_ANGLEShareHandle> Create(
      GLContext* gl, const SurfaceCaps& caps,
      const RefPtr<layers::LayersIPCChannel>& allocator,
      const layers::TextureFlags& flags);

 protected:
  SurfaceFactory_ANGLEShareHandle(
      GLContext* gl, const SurfaceCaps& caps,
      const RefPtr<layers::LayersIPCChannel>& allocator,
      const layers::TextureFlags& flags, GLLibraryEGL* egl, EGLConfig config);

  virtual UniquePtr<SharedSurface> CreateShared(
      const gfx::IntSize& size) override {
    bool hasAlpha = mReadCaps.alpha;
    return SharedSurface_ANGLEShareHandle::Create(mProdGL, mConfig, size,
                                                  hasAlpha);
  }
};

}  // namespace gl
} /* namespace mozilla */

#endif /* SHARED_SURFACE_ANGLE_H_ */