gfx/layers/D3D11ShareHandleImage.h
author Jean-Yves Avenard <jyavenard@mozilla.com>
Thu, 11 Apr 2019 12:36:51 +0000
changeset 469134 884f5dc55873c9345ee945cd6d5427e8ab398071
parent 448947 6f3709b3878117466168c40affa7bca0b60cf75b
child 469139 bfef6e9e74d53eaa3ef44f27498f31c2b5aee34f
permissions -rw-r--r--
Bug 1540581 - P6. Tidy some C++ declarations in gfx/. r=gerald,jrmuizel * Remove redundant virtual keywords * Mark all destructors of inheriting classes as virtual for clarity * Mark all classes without virtual destructor as final (exposed errors) * Make destructor virtual where it needed to be (some were missing) * Replace empty ({}) code declaration in header with = default * Remove virtual unused methods I probably missed some, it quickly became a rabbit hole. Differential Revision: https://phabricator.services.mozilla.com/D26060

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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_D311_SHARE_HANDLE_IMAGE_H
#define GFX_D311_SHARE_HANDLE_IMAGE_H

#include "mozilla/RefPtr.h"
#include "ImageContainer.h"
#include "d3d11.h"
#include "mozilla/layers/TextureClient.h"
#include "mozilla/layers/TextureD3D11.h"
#include "mozilla/layers/TextureClientRecycleAllocator.h"

namespace mozilla {
namespace layers {

class D3D11RecycleAllocator : public TextureClientRecycleAllocator {
 public:
  D3D11RecycleAllocator(KnowsCompositor* aAllocator, ID3D11Device* aDevice)
      : TextureClientRecycleAllocator(aAllocator), mDevice(aDevice) {}

  already_AddRefed<TextureClient> CreateOrRecycleClient(
      gfx::SurfaceFormat aFormat, const gfx::IntSize& aSize);

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

  RefPtr<ID3D11Device> mDevice;
  /**
   * Used for checking if CompositorDevice/ContentDevice is updated.
   */
  RefPtr<ID3D11Device> mImageDevice;
};

// Image class that wraps a ID3D11Texture2D. This class copies the image
// passed into SetData(), so that it can be accessed from other D3D devices.
// This class also manages the synchronization of the copy, to ensure the
// resource is ready to use.
class D3D11ShareHandleImage final : public Image {
 public:
  D3D11ShareHandleImage(const gfx::IntSize& aSize, const gfx::IntRect& aRect,
                        const GUID& aSourceFormat);
  virtual ~D3D11ShareHandleImage() = default;

  bool AllocateTexture(D3D11RecycleAllocator* aAllocator,
                       ID3D11Device* aDevice);

  gfx::IntSize GetSize() const override;
  already_AddRefed<gfx::SourceSurface> GetAsSourceSurface() override;
  TextureClient* GetTextureClient(KnowsCompositor* aForwarder) override;
  gfx::IntRect GetPictureRect() const override { return mPictureRect; }

  ID3D11Texture2D* GetTexture() const;

 private:
  gfx::IntSize mSize;
  gfx::IntRect mPictureRect;
  const GUID mSourceFormat;
  RefPtr<TextureClient> mTextureClient;
  RefPtr<ID3D11Texture2D> mTexture;
};

}  // namespace layers
}  // namespace mozilla

#endif  // GFX_D3DSURFACEIMAGE_H