gecko-dev/gfx/layers/D3D11YCbCrImage.h

/* -*- 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 GFX_D3D11_YCBCR_IMAGE_H
#define GFX_D3D11_YCBCR_IMAGE_H

#include "d3d11.h"
#include "mozilla/layers/TextureClientRecycleAllocator.h"
#include "mozilla/Maybe.h"
#include "ImageContainer.h"

namespace mozilla {
namespace gl {
class GLBlitHelper;
}
namespace layers {

class ImageContainer;
class DXGIYCbCrTextureClient;
class DXGIYCbCrTextureData;

class D3D11YCbCrRecycleAllocator : public TextureClientRecycleAllocator
{
public:
  explicit D3D11YCbCrRecycleAllocator(KnowsCompositor* aAllocator,
                                      ID3D11Device* aDevice)
    : TextureClientRecycleAllocator(aAllocator)
    , mDevice(aDevice)
  {
  }

  ID3D11Device* GetDevice() { return mDevice; }
  KnowsCompositor* GetAllocator() { return mSurfaceAllocator; }
  void SetSizes(const gfx::IntSize& aYSize, const gfx::IntSize& aCbCrSize);

protected:
  already_AddRefed<TextureClient>
  Allocate(gfx::SurfaceFormat aFormat,
           gfx::IntSize aSize,
           BackendSelector aSelector,
           TextureFlags aTextureFlags,
           TextureAllocationFlags aAllocFlags) override;

  RefPtr<ID3D11Device> mDevice;
  Maybe<gfx::IntSize> mYSize;
  Maybe<gfx::IntSize> mCbCrSize;
};

class D3D11YCbCrImage : public Image
{
  friend class gl::GLBlitHelper;
public:
  D3D11YCbCrImage();
  virtual ~D3D11YCbCrImage();

  // Copies the surface into a sharable texture's surface, and initializes
  // the image.
  bool SetData(KnowsCompositor* aAllocator,
               ImageContainer* aContainer,
               const PlanarYCbCrData& aData);

  gfx::IntSize GetSize() override;

  already_AddRefed<gfx::SourceSurface> GetAsSourceSurface() override;

  TextureClient* GetTextureClient(KnowsCompositor* aForwarder) override;

  gfx::IntRect GetPictureRect() override { return mPictureRect; }

private:
  const DXGIYCbCrTextureData* GetData() const;

  gfx::IntSize mYSize;
  gfx::IntSize mCbCrSize;
  gfx::IntRect mPictureRect;
  YUVColorSpace mColorSpace;
  RefPtr<TextureClient> mTextureClient;
};

} // namepace layers
} // namespace mozilla

#endif // GFX_D3D11_YCBCR_IMAGE_H