1 files changed, 107 insertions, 0 deletions
diff --git a/gfx/layers/D3D11TextureIMFSampleImage.h b/gfx/layers/D3D11TextureIMFSampleImage.h
new file mode 100644
index 0000000000..4077d386aa
--- /dev/null
+++ b/gfx/layers/D3D11TextureIMFSampleImage.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_TEXTURE_IMF_SAMPLE_IMAGE_H
+#define GFX_D311_TEXTURE_IMF_SAMPLE_IMAGE_H
+
+#include "ImageContainer.h"
+#include "mozilla/RefPtr.h"
+#include "mozilla/gfx/Types.h"
+#include "mozilla/layers/TextureClient.h"
+#include "mozilla/layers/TextureD3D11.h"
+#include "mozilla/ThreadSafeWeakPtr.h"
+
+struct ID3D11Texture2D;
+struct IMFSample;
+
+namespace mozilla {
+namespace gl {
+class GLBlitHelper;
+}
+namespace layers {
+
+class IMFSampleWrapper : public SupportsThreadSafeWeakPtr<IMFSampleWrapper> {
+ public:
+  MOZ_DECLARE_REFCOUNTED_TYPENAME(IMFSampleWrapper)
+
+  static RefPtr<IMFSampleWrapper> Create(IMFSample* aVideoSample);
+  virtual ~IMFSampleWrapper();
+  void ClearVideoSample();
+
+ protected:
+  explicit IMFSampleWrapper(IMFSample* aVideoSample);
+
+  RefPtr<IMFSample> mVideoSample;
+};
+
+class IMFSampleUsageInfo final {
+ public:
+  NS_INLINE_DECL_THREADSAFE_REFCOUNTING(IMFSampleUsageInfo)
+
+  IMFSampleUsageInfo() = default;
+
+  bool SupportsZeroCopyNV12Texture() { return mSupportsZeroCopyNV12Texture; }
+  void DisableZeroCopyNV12Texture() { mSupportsZeroCopyNV12Texture = false; }
+
+ protected:
+  ~IMFSampleUsageInfo() = default;
+
+  Atomic<bool> mSupportsZeroCopyNV12Texture{true};
+};
+
+// Image class that wraps ID3D11Texture2D of IMFSample
+// Expected to be used in GPU process.
+class D3D11TextureIMFSampleImage final : public Image {
+ public:
+  D3D11TextureIMFSampleImage(IMFSample* aVideoSample, ID3D11Texture2D* aTexture,
+                             uint32_t aArrayIndex, const gfx::IntSize& aSize,
+                             const gfx::IntRect& aRect,
+                             gfx::ColorSpace2 aColorSpace,
+                             gfx::ColorRange aColorRange);
+  virtual ~D3D11TextureIMFSampleImage() = default;
+
+  void AllocateTextureClient(KnowsCompositor* aKnowsCompositor,
+                             RefPtr<IMFSampleUsageInfo> aUsageInfo);
+
+  gfx::IntSize GetSize() const override;
+  already_AddRefed<gfx::SourceSurface> GetAsSourceSurface() override;
+  TextureClient* GetTextureClient(KnowsCompositor* aKnowsCompositor) override;
+  gfx::IntRect GetPictureRect() const override { return mPictureRect; }
+
+  ID3D11Texture2D* GetTexture() const;
+  RefPtr<IMFSampleWrapper> GetIMFSampleWrapper();
+
+  gfx::ColorRange GetColorRange() const { return mColorRange; }
+
+ private:
+  friend class gl::GLBlitHelper;
+  D3D11TextureData* GetData() const {
+    if (!mTextureClient) {
+      return nullptr;
+    }
+    return mTextureClient->GetInternalData()->AsD3D11TextureData();
+  }
+
+  // When ref of IMFSample is held, its ID3D11Texture2D is not reused by
+  // IMFTransform.
+  RefPtr<IMFSampleWrapper> mVideoSample;
+  RefPtr<ID3D11Texture2D> mTexture;
+
+ public:
+  const uint32_t mArrayIndex;
+  const gfx::IntSize mSize;
+  const gfx::IntRect mPictureRect;
+  const gfx::ColorSpace2 mColorSpace;
+  const gfx::ColorRange mColorRange;
+
+ private:
+  RefPtr<TextureClient> mTextureClient;
+};
+
+}  // namespace layers
+}  // namespace mozilla
+
+#endif  // GFX_D311_TEXTURE_IMF_SAMPLE_IMAGE_H