/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
//  * 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 MOZILLA_GFX_TEXTURECLIENTOGL_H
#define MOZILLA_GFX_TEXTURECLIENTOGL_H

#include "GLContextTypes.h"             // for SharedTextureHandle, etc
#include "GLImages.h"
#include "gfxTypes.h"
#include "mozilla/Attributes.h"         // for override
#include "mozilla/gfx/Point.h"          // for IntSize
#include "mozilla/layers/CompositorTypes.h"
#include "mozilla/layers/LayersSurfaces.h"  // for SurfaceDescriptor
#include "mozilla/layers/TextureClient.h"  // for TextureClient, etc
#include "AndroidSurfaceTexture.h"

namespace mozilla {

namespace layers {

class EGLImageTextureData : public TextureData
{
public:

  static already_AddRefed<TextureClient>
  CreateTextureClient(EGLImageImage* aImage, gfx::IntSize aSize,
                      ISurfaceAllocator* aAllocator, TextureFlags aFlags);

  virtual bool HasInternalBuffer() const override { return false; }

  virtual gfx::IntSize GetSize() const override { return mSize; }

  virtual bool Serialize(SurfaceDescriptor& aOutDescriptor) override;

  virtual void Deallocate(ISurfaceAllocator*) override { mImage = nullptr; }

  virtual void Forget(ISurfaceAllocator*) override { mImage = nullptr; }

  // Unused functions.
  virtual bool Lock(OpenMode, FenceHandle*) override { return true; }

  virtual void Unlock() override {}

  virtual gfx::SurfaceFormat GetFormat() const override
  {
    return gfx::SurfaceFormat::UNKNOWN;
  }

protected:
  EGLImageTextureData(EGLImageImage* aImage, gfx::IntSize aSize);

  RefPtr<EGLImageImage> mImage;
  const gfx::IntSize mSize;
};

#ifdef MOZ_WIDGET_ANDROID

class AndroidSurfaceTextureData : public TextureData
{
public:
  static already_AddRefed<TextureClient>
  CreateTextureClient(gl::AndroidSurfaceTexture* aSurfTex,
                      gfx::IntSize aSize,
                      gl::OriginPos aOriginPos,
                      ISurfaceAllocator* aAllocator,
                      TextureFlags aFlags);

  ~AndroidSurfaceTextureData();

  virtual bool HasInternalBuffer() const override { return false; }

  virtual gfx::IntSize GetSize() const override { return mSize; }

  virtual bool Serialize(SurfaceDescriptor& aOutDescriptor) override;

  // Useless functions.
  virtual bool Lock(OpenMode, FenceHandle*) override { return true; }

  virtual void Unlock() override {}

  virtual gfx::SurfaceFormat GetFormat() const override
  {
    return gfx::SurfaceFormat::UNKNOWN;
  }

  // Our data is always owned externally.
  virtual void Deallocate(ISurfaceAllocator*) override {}

protected:
  AndroidSurfaceTextureData(gl::AndroidSurfaceTexture* aSurfTex,
                            gfx::IntSize aSize);

  const RefPtr<gl::AndroidSurfaceTexture> mSurfTex;
  const gfx::IntSize mSize;
};

#endif // MOZ_WIDGET_ANDROID

} // namespace layers
} // namespace mozilla

#endif