1 files changed, 94 insertions, 0 deletions
diff --git a/gfx/layers/D3D11ShareHandleImage.h b/gfx/layers/D3D11ShareHandleImage.h
new file mode 100644
index 0000000000..76ce6d1058
--- /dev/null
+++ b/gfx/layers/D3D11ShareHandleImage.h
@@ -0,0 +1,94 @@
+/* -*- 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::YUVColorSpace aColorSpace, gfx::ColorRange aColorRange,
+      const gfx::IntSize& aSize);
+
+  void SetPreferredSurfaceFormat(gfx::SurfaceFormat aPreferredFormat);
+
+ private:
+  const RefPtr<ID3D11Device> mDevice;
+  const bool mCanUseNV12;
+  const bool mCanUseP010;
+  const bool mCanUseP016;
+  /**
+   * Used for checking if CompositorDevice/ContentDevice is updated.
+   */
+  RefPtr<ID3D11Device> mImageDevice;
+  gfx::SurfaceFormat mUsableSurfaceFormat;
+};
+
+// 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,
+                        gfx::YUVColorSpace aColorSpace,
+                        gfx::ColorRange aColorRange);
+  virtual ~D3D11ShareHandleImage() = default;
+
+  bool AllocateTexture(D3D11RecycleAllocator* aAllocator,
+                       ID3D11Device* aDevice);
+
+  gfx::IntSize GetSize() const override;
+  already_AddRefed<gfx::SourceSurface> GetAsSourceSurface() override;
+  TextureClient* GetTextureClient(KnowsCompositor* aKnowsCompositor) override;
+  gfx::IntRect GetPictureRect() const override { return mPictureRect; }
+
+  Maybe<SurfaceDescriptor> GetDesc() override { return GetDescFromTexClient(); }
+
+  ID3D11Texture2D* GetTexture() const;
+
+  gfx::YUVColorSpace GetYUVColorSpace() const { return mYUVColorSpace; }
+  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;
+  gfx::YUVColorSpace mYUVColorSpace;
+  gfx::ColorRange mColorRange;
+  RefPtr<TextureClient> mTextureClient;
+  RefPtr<ID3D11Texture2D> mTexture;
+};
+
+}  // namespace layers
+}  // namespace mozilla
+
+#endif  // GFX_D3DSURFACEIMAGE_H