D3D11ShareHandleImage.h

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/* -*- 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 "ImageContainer.h"

#include "d3d11.h"

#include "mozilla/Atomics.h"

#include "mozilla/RefPtr.h"

#include "mozilla/gfx/Types.h"

#include "mozilla/layers/TextureClient.h"

#include "mozilla/layers/TextureClientRecycleAllocator.h"

#include "mozilla/layers/TextureD3D11.h"

namespace mozilla {

namespace gl {

class GLBlitHelper;

namespace layers {

class D3D11RecycleAllocator final : public TextureClientRecycleAllocator {

 public:

  D3D11RecycleAllocator(KnowsCompositor* aAllocator, ID3D11Device* aDevice,

                        gfx::SurfaceFormat aPreferredFormat);

  already_AddRefed<TextureClient> CreateOrRecycleClient(

      gfx::ColorSpace2 aColorSpace, gfx::ColorRange aColorRange,

      const gfx::IntSize& aSize);

  void SetPreferredSurfaceFormat(gfx::SurfaceFormat aPreferredFormat);

  gfx::SurfaceFormat GetUsableSurfaceFormat() const {

    return mUsableSurfaceFormat;

  RefPtr<ID3D11Texture2D> GetStagingTextureNV12(gfx::IntSize aSize);

  void SetSyncObject(RefPtr<SyncObjectClient>& aSyncObject) {

    mSyncObject = aSyncObject;

  RefPtr<SyncObjectClient> GetSyncObject() { return mSyncObject; }

  const RefPtr<ID3D11Device> mDevice;

  const bool mCanUseNV12;

  const bool mCanUseP010;

  const bool mCanUseP016;

 private:

/**

   * Used for checking if CompositorDevice/ContentDevice is updated.

*/

  RefPtr<ID3D11Device> mImageDevice;

  gfx::SurfaceFormat mUsableSurfaceFormat;

  RefPtr<ID3D11Texture2D> mStagingTexture;

  gfx::IntSize mStagingTextureSize;

  RefPtr<SyncObjectClient> mSyncObject;

};

// 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:

  static RefPtr<D3D11ShareHandleImage> MaybeCreateNV12ImageAndSetData(

      KnowsCompositor* aAllocator, ImageContainer* aContainer,

      const PlanarYCbCrData& aData);

  D3D11ShareHandleImage(const gfx::IntSize& aSize, const gfx::IntRect& aRect,

                        gfx::ColorSpace2 aColorSpace,

                        gfx::ColorRange aColorRange);

  virtual ~D3D11ShareHandleImage() = default;

  bool AllocateTexture(D3D11RecycleAllocator* aAllocator,

                       ID3D11Device* aDevice);

  gfx::IntSize GetSize() const override;

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

  nsresult BuildSurfaceDescriptorBuffer(

      SurfaceDescriptorBuffer& aSdBuffer, BuildSdbFlags aFlags,

      const std::function<MemoryOrShmem(uint32_t)>& aAllocate) override;

  TextureClient* GetTextureClient(KnowsCompositor* aKnowsCompositor) override;

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

  ID3D11Texture2D* GetTexture() const;

  gfx::ColorRange GetColorRange() const { return mColorRange; }

 private:

  friend class gl::GLBlitHelper;

  D3D11TextureData* GetData() const {

    if (!mTextureClient) {

      return nullptr;

    return mTextureClient->GetInternalData()->AsD3D11TextureData();

  gfx::IntSize mSize;

  gfx::IntRect mPictureRect;

 public:

  const gfx::ColorSpace2 mColorSpace;

 private:

  gfx::ColorRange mColorRange;

  RefPtr<TextureClient> mTextureClient;

  RefPtr<ID3D11Texture2D> mTexture;

};

}  // namespace layers

}  // namespace mozilla

#endif  // GFX_D3DSURFACEIMAGE_H