Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

12 files changed, 5083 insertions, 0 deletions

diff --git a/gfx/layers/d3d11/BlendShaderConstants.h b/gfx/layers/d3d11/BlendShaderConstants.h
new file mode 100644
index 0000000000..4c7493b6db
--- /dev/null
+++ b/gfx/layers/d3d11/BlendShaderConstants.h
@@ -0,0 +1,18 @@
+/* -*- 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 MOZILLA_GFX_LAYERS_D3D11_BLENDSHADERCONSTANTS_H_
+#define MOZILLA_GFX_LAYERS_D3D11_BLENDSHADERCONSTANTS_H_
+
+// These constants are shared between CompositorD3D11 and the blend pixel
+// shader.
+#define PS_LAYER_RGB 0
+#define PS_LAYER_RGBA 1
+#define PS_LAYER_YCBCR 2
+#define PS_LAYER_COLOR 3
+#define PS_LAYER_NV12 4
+
+#endif  // MOZILLA_GFX_LAYERS_D3D11_BLENDSHADERCONSTANTS_H_
diff --git a/gfx/layers/d3d11/CompositorD3D11.cpp b/gfx/layers/d3d11/CompositorD3D11.cpp
new file mode 100644
index 0000000000..662fc47132
--- /dev/null
+++ b/gfx/layers/d3d11/CompositorD3D11.cpp
@@ -0,0 +1,1400 @@
+/* -*- 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/. */
+
+#include "CompositorD3D11.h"
+
+#include "TextureD3D11.h"
+
+#include "gfxWindowsPlatform.h"
+#include "nsIWidget.h"
+#include "mozilla/gfx/D3D11Checks.h"
+#include "mozilla/gfx/DeviceManagerDx.h"
+#include "mozilla/gfx/GPUParent.h"
+#include "mozilla/gfx/Swizzle.h"
+#include "mozilla/layers/Diagnostics.h"
+#include "mozilla/layers/Effects.h"
+#include "mozilla/layers/HelpersD3D11.h"
+#include "nsWindowsHelpers.h"
+#include "gfxConfig.h"
+#include "gfxCrashReporterUtils.h"
+#include "gfxUtils.h"
+#include "mozilla/gfx/StackArray.h"
+#include "mozilla/widget/WinCompositorWidget.h"
+
+#include "mozilla/EnumeratedArray.h"
+#include "mozilla/ProfilerState.h"
+#include "mozilla/StaticPrefs_gfx.h"
+#include "mozilla/StaticPrefs_layers.h"
+#include "mozilla/Telemetry.h"
+
+#include "D3D11ShareHandleImage.h"
+#include "DeviceAttachmentsD3D11.h"
+#include "BlendShaderConstants.h"
+
+#include <versionhelpers.h>  // For IsWindows8OrGreater
+#include <winsdkver.h>
+
+namespace mozilla {
+
+using namespace gfx;
+
+namespace layers {
+
+bool CanUsePartialPresents(ID3D11Device* aDevice);
+
+const FLOAT sBlendFactor[] = {0, 0, 0, 0};
+
+class AsyncReadbackBufferD3D11 final : public AsyncReadbackBuffer {
+ public:
+  AsyncReadbackBufferD3D11(ID3D11DeviceContext* aContext,
+                           ID3D11Texture2D* aTexture, const IntSize& aSize);
+
+  bool MapAndCopyInto(DataSourceSurface* aSurface,
+                      const IntSize& aReadSize) const override;
+
+  ID3D11Texture2D* GetTexture() { return mTexture; }
+
+ private:
+  RefPtr<ID3D11DeviceContext> mContext;
+  RefPtr<ID3D11Texture2D> mTexture;
+};
+
+AsyncReadbackBufferD3D11::AsyncReadbackBufferD3D11(
+    ID3D11DeviceContext* aContext, ID3D11Texture2D* aTexture,
+    const IntSize& aSize)
+    : AsyncReadbackBuffer(aSize), mContext(aContext), mTexture(aTexture) {}
+
+bool AsyncReadbackBufferD3D11::MapAndCopyInto(DataSourceSurface* aSurface,
+                                              const IntSize& aReadSize) const {
+  D3D11_MAPPED_SUBRESOURCE map;
+  HRESULT hr = mContext->Map(mTexture, 0, D3D11_MAP_READ, 0, &map);
+
+  if (FAILED(hr)) {
+    return false;
+  }
+
+  RefPtr<DataSourceSurface> sourceSurface =
+      Factory::CreateWrappingDataSourceSurface(static_cast<uint8_t*>(map.pData),
+                                               map.RowPitch, mSize,
+                                               SurfaceFormat::B8G8R8A8);
+
+  bool result;
+  {
+    DataSourceSurface::ScopedMap sourceMap(sourceSurface,
+                                           DataSourceSurface::READ);
+    DataSourceSurface::ScopedMap destMap(aSurface, DataSourceSurface::WRITE);
+
+    result = SwizzleData(sourceMap.GetData(), sourceMap.GetStride(),
+                         SurfaceFormat::B8G8R8A8, destMap.GetData(),
+                         destMap.GetStride(), aSurface->GetFormat(), aReadSize);
+  }
+
+  mContext->Unmap(mTexture, 0);
+
+  return result;
+}
+
+CompositorD3D11::CompositorD3D11(widget::CompositorWidget* aWidget)
+    : Compositor(aWidget),
+      mWindowRTCopy(nullptr),
+      mAttachments(nullptr),
+      mHwnd(nullptr),
+      mDisableSequenceForNextFrame(false),
+      mAllowPartialPresents(false),
+      mIsDoubleBuffered(false),
+      mVerifyBuffersFailed(false),
+      mUseMutexOnPresent(false) {
+  mUseMutexOnPresent = StaticPrefs::gfx_use_mutex_on_present_AtStartup();
+}
+
+CompositorD3D11::~CompositorD3D11() {}
+
+template <typename VertexType>
+void CompositorD3D11::SetVertexBuffer(ID3D11Buffer* aBuffer) {
+  UINT size = sizeof(VertexType);
+  UINT offset = 0;
+  mContext->IASetVertexBuffers(0, 1, &aBuffer, &size, &offset);
+}
+
+bool CompositorD3D11::Initialize(nsCString* const out_failureReason) {
+  ScopedGfxFeatureReporter reporter("D3D11 Layers");
+
+  HRESULT hr;
+
+  DeviceManagerDx::Get()->GetCompositorDevices(&mDevice, &mAttachments);
+  if (!mDevice) {
+    gfxCriticalNote << "[D3D11] failed to get compositor device.";
+    *out_failureReason = "FEATURE_FAILURE_D3D11_NO_DEVICE";
+    return false;
+  }
+  if (!mAttachments || !mAttachments->IsValid()) {
+    gfxCriticalNote << "[D3D11] failed to get compositor device attachments";
+    *out_failureReason = mAttachments ? mAttachments->GetFailureId()
+                                      : "FEATURE_FAILURE_NO_ATTACHMENTS"_ns;
+    return false;
+  }
+
+  mDevice->GetImmediateContext(getter_AddRefs(mContext));
+  if (!mContext) {
+    gfxCriticalNote << "[D3D11] failed to get immediate context";
+    *out_failureReason = "FEATURE_FAILURE_D3D11_CONTEXT";
+    return false;
+  }
+
+  mFeatureLevel = mDevice->GetFeatureLevel();
+
+  mHwnd = mWidget->AsWindows()->GetHwnd();
+
+  memset(&mVSConstants, 0, sizeof(VertexShaderConstants));
+
+  RefPtr<IDXGIDevice> dxgiDevice;
+  RefPtr<IDXGIAdapter> dxgiAdapter;
+
+  mDevice->QueryInterface(dxgiDevice.StartAssignment());
+  dxgiDevice->GetAdapter(getter_AddRefs(dxgiAdapter));
+
+  {
+    RefPtr<IDXGIFactory> dxgiFactory;
+    dxgiAdapter->GetParent(IID_PPV_ARGS(dxgiFactory.StartAssignment()));
+
+    RefPtr<IDXGIFactory2> dxgiFactory2;
+    hr = dxgiFactory->QueryInterface(
+        (IDXGIFactory2**)getter_AddRefs(dxgiFactory2));
+
+#if (_WIN32_WINDOWS_MAXVER >= 0x0A00)
+    if (gfxVars::UseDoubleBufferingWithCompositor() && SUCCEEDED(hr) &&
+        dxgiFactory2) {
+      // DXGI_SCALING_NONE is not available on Windows 7 with Platform Update.
+      // This looks awful for things like the awesome bar and browser window
+      // resizing so we don't use a flip buffer chain here. When using
+      // EFFECT_SEQUENTIAL it looks like windows doesn't stretch the surface
+      // when resizing. We chose not to run this before Windows 10 because it
+      // appears sometimes this breaks our ability to test ASAP compositing.
+      RefPtr<IDXGISwapChain1> swapChain;
+
+      DXGI_SWAP_CHAIN_DESC1 swapDesc;
+      ::ZeroMemory(&swapDesc, sizeof(swapDesc));
+      swapDesc.Width = 0;
+      swapDesc.Height = 0;
+      swapDesc.Format = DXGI_FORMAT_B8G8R8A8_UNORM;
+      swapDesc.SampleDesc.Count = 1;
+      swapDesc.SampleDesc.Quality = 0;
+      swapDesc.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;
+      swapDesc.BufferCount = 2;
+      swapDesc.SwapEffect = DXGI_SWAP_EFFECT_FLIP_SEQUENTIAL;
+      swapDesc.Scaling = DXGI_SCALING_NONE;
+      mIsDoubleBuffered = true;
+      swapDesc.Flags = 0;
+
+      /**
+       * Create a swap chain, this swap chain will contain the backbuffer for
+       * the window we draw to. The front buffer is the full screen front
+       * buffer.
+       */
+      hr = dxgiFactory2->CreateSwapChainForHwnd(mDevice, mHwnd, &swapDesc,
+                                                nullptr, nullptr,
+                                                getter_AddRefs(swapChain));
+      if (SUCCEEDED(hr)) {
+        DXGI_RGBA color = {1.0f, 1.0f, 1.0f, 1.0f};
+        swapChain->SetBackgroundColor(&color);
+
+        mSwapChain = swapChain;
+      } else if (mWidget->AsWindows()->GetCompositorHwnd()) {
+        // Destroy compositor window.
+        mWidget->AsWindows()->DestroyCompositorWindow();
+        mHwnd = mWidget->AsWindows()->GetHwnd();
+      }
+    }
+
+    // In some configurations double buffering may have failed with an
+    // ACCESS_DENIED error.
+    if (!mSwapChain)
+#endif
+    {
+      if (mWidget->AsWindows()->GetCompositorHwnd()) {
+        // Destroy compositor window.
+        mWidget->AsWindows()->DestroyCompositorWindow();
+        mHwnd = mWidget->AsWindows()->GetHwnd();
+      }
+
+      DXGI_SWAP_CHAIN_DESC swapDesc;
+      ::ZeroMemory(&swapDesc, sizeof(swapDesc));
+      swapDesc.BufferDesc.Width = 0;
+      swapDesc.BufferDesc.Height = 0;
+      swapDesc.BufferDesc.Format = DXGI_FORMAT_B8G8R8A8_UNORM;
+      swapDesc.BufferDesc.RefreshRate.Numerator = 60;
+      swapDesc.BufferDesc.RefreshRate.Denominator = 1;
+      swapDesc.SampleDesc.Count = 1;
+      swapDesc.SampleDesc.Quality = 0;
+      swapDesc.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;
+      swapDesc.BufferCount = 1;
+      swapDesc.OutputWindow = mHwnd;
+      swapDesc.Windowed = TRUE;
+      swapDesc.Flags = 0;
+      swapDesc.SwapEffect = DXGI_SWAP_EFFECT_SEQUENTIAL;
+
+      /**
+       * Create a swap chain, this swap chain will contain the backbuffer for
+       * the window we draw to. The front buffer is the full screen front
+       * buffer.
+       */
+      hr = dxgiFactory->CreateSwapChain(dxgiDevice, &swapDesc,
+                                        getter_AddRefs(mSwapChain));
+      if (Failed(hr, "create swap chain")) {
+        *out_failureReason = "FEATURE_FAILURE_D3D11_SWAP_CHAIN";
+        return false;
+      }
+    }
+
+    // We need this because we don't want DXGI to respond to Alt+Enter.
+    dxgiFactory->MakeWindowAssociation(mHwnd, DXGI_MWA_NO_WINDOW_CHANGES);
+  }
+
+  if (!mWidget->InitCompositor(this)) {
+    *out_failureReason = "FEATURE_FAILURE_D3D11_INIT_COMPOSITOR";
+    return false;
+  }
+
+  mAllowPartialPresents = CanUsePartialPresents(mDevice);
+
+  reporter.SetSuccessful();
+  return true;
+}
+
+bool CanUsePartialPresents(ID3D11Device* aDevice) {
+  if (StaticPrefs::gfx_partialpresent_force() > 0) {
+    return true;
+  }
+  if (StaticPrefs::gfx_partialpresent_force() < 0) {
+    return false;
+  }
+  if (DeviceManagerDx::Get()->IsWARP()) {
+    return true;
+  }
+
+  DXGI_ADAPTER_DESC desc;
+  if (!D3D11Checks::GetDxgiDesc(aDevice, &desc)) {
+    return false;
+  }
+
+  // We have to disable partial presents on NVIDIA (bug 1189940).
+  if (desc.VendorId == 0x10de) {
+    return false;
+  }
+
+  return true;
+}
+
+already_AddRefed<DataTextureSource> CompositorD3D11::CreateDataTextureSource(
+    TextureFlags aFlags) {
+  RefPtr<DataTextureSource> result =
+      new DataTextureSourceD3D11(gfx::SurfaceFormat::UNKNOWN, this, aFlags);
+  return result.forget();
+}
+
+int32_t CompositorD3D11::GetMaxTextureSize() const {
+  return GetMaxTextureSizeForFeatureLevel(mFeatureLevel);
+}
+
+already_AddRefed<CompositingRenderTarget> CompositorD3D11::CreateRenderTarget(
+    const gfx::IntRect& aRect, SurfaceInitMode aInit) {
+  MOZ_ASSERT(!aRect.IsZeroArea());
+
+  if (aRect.IsZeroArea()) {
+    return nullptr;
+  }
+
+  CD3D11_TEXTURE2D_DESC desc(
+      DXGI_FORMAT_B8G8R8A8_UNORM, aRect.width, aRect.height, 1, 1,
+      D3D11_BIND_SHADER_RESOURCE | D3D11_BIND_RENDER_TARGET);
+
+  RefPtr<ID3D11Texture2D> texture;
+  HRESULT hr =
+      mDevice->CreateTexture2D(&desc, nullptr, getter_AddRefs(texture));
+  if (FAILED(hr) || !texture) {
+    gfxCriticalNote << "Failed in CreateRenderTarget " << hexa(hr);
+    return nullptr;
+  }
+
+  RefPtr<CompositingRenderTargetD3D11> rt =
+      new CompositingRenderTargetD3D11(texture, aRect.TopLeft());
+  rt->SetSize(IntSize(aRect.Width(), aRect.Height()));
+
+  if (aInit == INIT_MODE_CLEAR) {
+    FLOAT clear[] = {0, 0, 0, 0};
+    mContext->ClearRenderTargetView(rt->mRTView, clear);
+  }
+
+  return rt.forget();
+}
+
+RefPtr<ID3D11Texture2D> CompositorD3D11::CreateTexture(
+    const gfx::IntRect& aRect, const CompositingRenderTarget* aSource,
+    const gfx::IntPoint& aSourcePoint) {
+  MOZ_ASSERT(!aRect.IsZeroArea());
+
+  if (aRect.IsZeroArea()) {
+    return nullptr;
+  }
+
+  CD3D11_TEXTURE2D_DESC desc(
+      DXGI_FORMAT_B8G8R8A8_UNORM, aRect.Width(), aRect.Height(), 1, 1,
+      D3D11_BIND_SHADER_RESOURCE | D3D11_BIND_RENDER_TARGET);
+
+  RefPtr<ID3D11Texture2D> texture;
+  HRESULT hr =
+      mDevice->CreateTexture2D(&desc, nullptr, getter_AddRefs(texture));
+
+  if (FAILED(hr) || !texture) {
+    gfxCriticalNote << "Failed in CreateRenderTargetFromSource " << hexa(hr);
+    HandleError(hr);
+    return nullptr;
+  }
+
+  if (aSource) {
+    const CompositingRenderTargetD3D11* sourceD3D11 =
+        static_cast<const CompositingRenderTargetD3D11*>(aSource);
+
+    const IntSize& srcSize = sourceD3D11->GetSize();
+    MOZ_ASSERT(srcSize.width >= 0 && srcSize.height >= 0,
+               "render targets should have nonnegative sizes");
+
+    IntRect srcRect(IntPoint(), srcSize);
+    IntRect copyRect(aSourcePoint, aRect.Size());
+    if (!srcRect.Contains(copyRect)) {
+      NS_WARNING("Could not copy the whole copy rect from the render target");
+    }
+
+    copyRect = copyRect.Intersect(srcRect);
+
+    if (!copyRect.IsEmpty()) {
+      D3D11_BOX copyBox;
+      copyBox.front = 0;
+      copyBox.back = 1;
+      copyBox.left = copyRect.X();
+      copyBox.top = copyRect.Y();
+      copyBox.right = copyRect.XMost();
+      copyBox.bottom = copyRect.YMost();
+
+      mContext->CopySubresourceRegion(
+          texture, 0, 0, 0, 0, sourceD3D11->GetD3D11Texture(), 0, &copyBox);
+    }
+  }
+
+  return texture;
+}
+
+bool CompositorD3D11::ShouldAllowFrameRecording() const {
+  return mAllowFrameRecording ||
+         profiler_feature_active(ProfilerFeature::Screenshots);
+}
+
+already_AddRefed<CompositingRenderTarget>
+CompositorD3D11::GetWindowRenderTarget() const {
+  if (!ShouldAllowFrameRecording()) {
+    return nullptr;
+  }
+
+  if (!mDefaultRT) {
+    return nullptr;
+  }
+
+  const IntSize size = mDefaultRT->GetSize();
+
+  RefPtr<ID3D11Texture2D> rtTexture;
+
+  if (!mWindowRTCopy || mWindowRTCopy->GetSize() != size) {
+    /*
+     * The compositor screenshots infrastructure is going to scale down the
+     * render target returned by this method. However, mDefaultRT does not
+     * contain a texture created wth the D3D11_BIND_SHADER_RESOURCE flag, so if
+     * we were to simply return mDefaultRT then scaling would fail.
+     */
+    CD3D11_TEXTURE2D_DESC desc(DXGI_FORMAT_B8G8R8A8_UNORM, size.width,
+                               size.height, 1, 1, D3D11_BIND_SHADER_RESOURCE);
+
+    HRESULT hr =
+        mDevice->CreateTexture2D(&desc, nullptr, getter_AddRefs(rtTexture));
+    if (FAILED(hr)) {
+      return nullptr;
+    }
+
+    mWindowRTCopy = MakeRefPtr<CompositingRenderTargetD3D11>(
+        rtTexture, IntPoint(0, 0), DXGI_FORMAT_B8G8R8A8_UNORM);
+    mWindowRTCopy->SetSize(size);
+  } else {
+    rtTexture = mWindowRTCopy->GetD3D11Texture();
+  }
+
+  const RefPtr<ID3D11Texture2D> sourceTexture = mDefaultRT->GetD3D11Texture();
+  mContext->CopyResource(rtTexture, sourceTexture);
+
+  return RefPtr<CompositingRenderTarget>(
+             static_cast<CompositingRenderTarget*>(mWindowRTCopy))
+      .forget();
+}
+
+bool CompositorD3D11::ReadbackRenderTarget(CompositingRenderTarget* aSource,
+                                           AsyncReadbackBuffer* aDest) {
+  RefPtr<CompositingRenderTargetD3D11> srcTexture =
+      static_cast<CompositingRenderTargetD3D11*>(aSource);
+  RefPtr<AsyncReadbackBufferD3D11> destBuffer =
+      static_cast<AsyncReadbackBufferD3D11*>(aDest);
+
+  mContext->CopyResource(destBuffer->GetTexture(),
+                         srcTexture->GetD3D11Texture());
+
+  return true;
+}
+
+already_AddRefed<AsyncReadbackBuffer>
+CompositorD3D11::CreateAsyncReadbackBuffer(const gfx::IntSize& aSize) {
+  RefPtr<ID3D11Texture2D> texture;
+
+  CD3D11_TEXTURE2D_DESC desc(DXGI_FORMAT_B8G8R8A8_UNORM, aSize.width,
+                             aSize.height, 1, 1, 0, D3D11_USAGE_STAGING,
+                             D3D11_CPU_ACCESS_READ);
+
+  HRESULT hr =
+      mDevice->CreateTexture2D(&desc, nullptr, getter_AddRefs(texture));
+
+  if (FAILED(hr)) {
+    HandleError(hr);
+    return nullptr;
+  }
+
+  return MakeAndAddRef<AsyncReadbackBufferD3D11>(mContext, texture, aSize);
+}
+
+bool CompositorD3D11::BlitRenderTarget(CompositingRenderTarget* aSource,
+                                       const gfx::IntSize& aSourceSize,
+                                       const gfx::IntSize& aDestSize) {
+  RefPtr<CompositingRenderTargetD3D11> source =
+      static_cast<CompositingRenderTargetD3D11*>(aSource);
+
+  RefPtr<TexturedEffect> texturedEffect = CreateTexturedEffect(
+      SurfaceFormat::B8G8R8A8, source, SamplingFilter::LINEAR, true);
+  texturedEffect->mTextureCoords =
+      Rect(0, 0, Float(aSourceSize.width) / Float(source->GetSize().width),
+           Float(aSourceSize.height) / Float(source->GetSize().height));
+
+  EffectChain effect;
+  effect.mPrimaryEffect = texturedEffect;
+
+  const Float scaleX = Float(aDestSize.width) / Float(aSourceSize.width);
+  const Float scaleY = Float(aDestSize.height) / (aSourceSize.height);
+  const Matrix4x4 transform = Matrix4x4::Scaling(scaleX, scaleY, 1.0f);
+
+  const Rect sourceRect(0, 0, aSourceSize.width, aSourceSize.height);
+
+  DrawQuad(sourceRect, IntRect(0, 0, aDestSize.width, aDestSize.height), effect,
+           1.0f, transform, sourceRect);
+
+  return true;
+}
+
+void CompositorD3D11::SetRenderTarget(CompositingRenderTarget* aRenderTarget) {
+  MOZ_ASSERT(aRenderTarget);
+  CompositingRenderTargetD3D11* newRT =
+      static_cast<CompositingRenderTargetD3D11*>(aRenderTarget);
+  if (mCurrentRT != newRT) {
+    mCurrentRT = newRT;
+    mCurrentRT->BindRenderTarget(mContext);
+  }
+
+  if (newRT->HasComplexProjection()) {
+    gfx::Matrix4x4 projection;
+    bool depthEnable;
+    float zNear, zFar;
+    newRT->GetProjection(projection, depthEnable, zNear, zFar);
+    PrepareViewport(newRT->GetSize(), projection, zNear, zFar);
+  } else {
+    PrepareViewport(newRT->GetSize());
+  }
+}
+
+ID3D11PixelShader* CompositorD3D11::GetPSForEffect(Effect* aEffect) {
+  switch (aEffect->mType) {
+    case EffectTypes::RGB: {
+      SurfaceFormat format =
+          static_cast<TexturedEffect*>(aEffect)->mTexture->GetFormat();
+      return (format == SurfaceFormat::B8G8R8A8 ||
+              format == SurfaceFormat::R8G8B8A8)
+                 ? mAttachments->mRGBAShader
+                 : mAttachments->mRGBShader;
+    }
+    case EffectTypes::NV12:
+      return mAttachments->mNV12Shader;
+    case EffectTypes::YCBCR:
+      return mAttachments->mYCbCrShader;
+    default:
+      NS_WARNING("No shader to load");
+      return nullptr;
+  }
+}
+
+void CompositorD3D11::ClearRect(const gfx::Rect& aRect) {
+  if (aRect.IsEmpty()) {
+    return;
+  }
+
+  mContext->OMSetBlendState(mAttachments->mDisabledBlendState, sBlendFactor,
+                            0xFFFFFFFF);
+
+  Matrix4x4 identity;
+  memcpy(&mVSConstants.layerTransform, &identity._11, 64);
+
+  mVSConstants.layerQuad = aRect;
+  mVSConstants.renderTargetOffset[0] = 0;
+  mVSConstants.renderTargetOffset[1] = 0;
+  mPSConstants.layerOpacity[0] = 1.0f;
+
+  D3D11_RECT scissor;
+  scissor.left = aRect.X();
+  scissor.right = aRect.XMost();
+  scissor.top = aRect.Y();
+  scissor.bottom = aRect.YMost();
+  mContext->RSSetScissorRects(1, &scissor);
+  mContext->IASetPrimitiveTopology(D3D11_PRIMITIVE_TOPOLOGY_TRIANGLESTRIP);
+  mContext->VSSetShader(mAttachments->mVSQuadShader, nullptr, 0);
+
+  mContext->PSSetShader(mAttachments->mSolidColorShader, nullptr, 0);
+  mPSConstants.layerColor[0] = 0;
+  mPSConstants.layerColor[1] = 0;
+  mPSConstants.layerColor[2] = 0;
+  mPSConstants.layerColor[3] = 0;
+
+  if (!UpdateConstantBuffers()) {
+    NS_WARNING("Failed to update shader constant buffers");
+    return;
+  }
+
+  mContext->Draw(4, 0);
+
+  // Restore the default blend state.
+  mContext->OMSetBlendState(mAttachments->mPremulBlendState, sBlendFactor,
+                            0xFFFFFFFF);
+}
+
+void CompositorD3D11::PrepareStaticVertexBuffer() {
+  mContext->IASetPrimitiveTopology(D3D11_PRIMITIVE_TOPOLOGY_TRIANGLESTRIP);
+  mContext->IASetInputLayout(mAttachments->mInputLayout);
+  SetVertexBuffer<Vertex>(mAttachments->mVertexBuffer);
+}
+
+void CompositorD3D11::Draw(const gfx::Rect& aRect,
+                           const gfx::Rect* aTexCoords) {
+  Rect layerRects[4] = {aRect};
+  Rect textureRects[4] = {};
+  size_t rects = 1;
+
+  if (aTexCoords) {
+    rects = DecomposeIntoNoRepeatRects(aRect, *aTexCoords, &layerRects,
+                                       &textureRects);
+  }
+
+  for (size_t i = 0; i < rects; i++) {
+    mVSConstants.layerQuad = layerRects[i];
+    mVSConstants.textureCoords = textureRects[i];
+
+    if (!UpdateConstantBuffers()) {
+      NS_WARNING("Failed to update shader constant buffers");
+      break;
+    }
+
+    mContext->Draw(4, 0);
+  }
+}
+
+void CompositorD3D11::DrawQuad(const gfx::Rect& aRect,
+                               const gfx::IntRect& aClipRect,
+                               const EffectChain& aEffectChain,
+                               gfx::Float aOpacity,
+                               const gfx::Matrix4x4& aTransform,
+                               const gfx::Rect& aVisibleRect) {
+  if (mCurrentClip.IsEmpty()) {
+    return;
+  }
+
+  MOZ_ASSERT(mCurrentRT, "No render target");
+
+  memcpy(&mVSConstants.layerTransform, &aTransform._11, 64);
+  IntPoint origin = mCurrentRT->GetOrigin();
+  mVSConstants.renderTargetOffset[0] = origin.x;
+  mVSConstants.renderTargetOffset[1] = origin.y;
+
+  mPSConstants.layerOpacity[0] = aOpacity;
+
+  D3D11_RECT scissor;
+
+  IntRect clipRect(aClipRect.X(), aClipRect.Y(), aClipRect.Width(),
+                   aClipRect.Height());
+  if (mCurrentRT == mDefaultRT) {
+    clipRect = clipRect.Intersect(mCurrentClip);
+  }
+
+  if (clipRect.IsEmpty()) {
+    return;
+  }
+
+  scissor.left = clipRect.X();
+  scissor.right = clipRect.XMost();
+  scissor.top = clipRect.Y();
+  scissor.bottom = clipRect.YMost();
+
+  bool restoreBlendMode = false;
+
+  mContext->RSSetScissorRects(1, &scissor);
+
+  RefPtr<ID3D11VertexShader> vertexShader = mAttachments->mVSQuadShader;
+
+  RefPtr<ID3D11PixelShader> pixelShader =
+      GetPSForEffect(aEffectChain.mPrimaryEffect);
+
+  mContext->VSSetShader(vertexShader, nullptr, 0);
+  mContext->PSSetShader(pixelShader, nullptr, 0);
+
+  const Rect* pTexCoordRect = nullptr;
+
+  switch (aEffectChain.mPrimaryEffect->mType) {
+    case EffectTypes::RGB: {
+      TexturedEffect* texturedEffect =
+          static_cast<TexturedEffect*>(aEffectChain.mPrimaryEffect.get());
+
+      pTexCoordRect = &texturedEffect->mTextureCoords;
+
+      TextureSourceD3D11* source = texturedEffect->mTexture->AsSourceD3D11();
+
+      if (!source) {
+        NS_WARNING("Missing texture source!");
+        return;
+      }
+
+      ID3D11ShaderResourceView* srView = source->GetShaderResourceView();
+      mContext->PSSetShaderResources(TexSlot::RGB, 1, &srView);
+
+      if (texturedEffect->mPremultipliedCopy) {
+        MOZ_RELEASE_ASSERT(texturedEffect->mPremultiplied);
+        mContext->OMSetBlendState(mAttachments->mPremulCopyState, sBlendFactor,
+                                  0xFFFFFFFF);
+        restoreBlendMode = true;
+      } else if (!texturedEffect->mPremultiplied) {
+        mContext->OMSetBlendState(mAttachments->mNonPremulBlendState,
+                                  sBlendFactor, 0xFFFFFFFF);
+        restoreBlendMode = true;
+      }
+
+      SetSamplerForSamplingFilter(texturedEffect->mSamplingFilter);
+    } break;
+    case EffectTypes::NV12: {
+      EffectNV12* effectNV12 =
+          static_cast<EffectNV12*>(aEffectChain.mPrimaryEffect.get());
+
+      pTexCoordRect = &effectNV12->mTextureCoords;
+
+      TextureSourceD3D11* source = effectNV12->mTexture->AsSourceD3D11();
+      if (!source) {
+        NS_WARNING("Missing texture source!");
+        return;
+      }
+
+      RefPtr<ID3D11Texture2D> texture = source->GetD3D11Texture();
+      if (!texture) {
+        NS_WARNING("No texture found in texture source!");
+      }
+
+      D3D11_TEXTURE2D_DESC sourceDesc;
+      texture->GetDesc(&sourceDesc);
+      MOZ_DIAGNOSTIC_ASSERT(sourceDesc.Format == DXGI_FORMAT_NV12 ||
+                            sourceDesc.Format == DXGI_FORMAT_P010 ||
+                            sourceDesc.Format == DXGI_FORMAT_P016);
+
+      // Might want to cache these for efficiency.
+      RefPtr<ID3D11ShaderResourceView> srViewY;
+      RefPtr<ID3D11ShaderResourceView> srViewCbCr;
+      D3D11_SHADER_RESOURCE_VIEW_DESC srvDesc =
+          CD3D11_SHADER_RESOURCE_VIEW_DESC(D3D11_SRV_DIMENSION_TEXTURE2D,
+                                           sourceDesc.Format == DXGI_FORMAT_NV12
+                                               ? DXGI_FORMAT_R8_UNORM
+                                               : DXGI_FORMAT_R16_UNORM);
+      mDevice->CreateShaderResourceView(texture, &srvDesc,
+                                        getter_AddRefs(srViewY));
+      srvDesc.Format = sourceDesc.Format == DXGI_FORMAT_NV12
+                           ? DXGI_FORMAT_R8G8_UNORM
+                           : DXGI_FORMAT_R16G16_UNORM;
+      mDevice->CreateShaderResourceView(texture, &srvDesc,
+                                        getter_AddRefs(srViewCbCr));
+
+      ID3D11ShaderResourceView* views[] = {srViewY, srViewCbCr};
+      mContext->PSSetShaderResources(TexSlot::Y, 2, views);
+
+      const float* yuvToRgb =
+          gfxUtils::YuvToRgbMatrix4x3RowMajor(effectNV12->mYUVColorSpace);
+      memcpy(&mPSConstants.yuvColorMatrix, yuvToRgb,
+             sizeof(mPSConstants.yuvColorMatrix));
+      mPSConstants.vCoefficient[0] =
+          RescalingFactorForColorDepth(effectNV12->mColorDepth);
+
+      SetSamplerForSamplingFilter(effectNV12->mSamplingFilter);
+    } break;
+    case EffectTypes::YCBCR: {
+      EffectYCbCr* ycbcrEffect =
+          static_cast<EffectYCbCr*>(aEffectChain.mPrimaryEffect.get());
+
+      SetSamplerForSamplingFilter(SamplingFilter::LINEAR);
+
+      pTexCoordRect = &ycbcrEffect->mTextureCoords;
+
+      const int Y = 0, Cb = 1, Cr = 2;
+      TextureSource* source = ycbcrEffect->mTexture;
+
+      if (!source) {
+        NS_WARNING("No texture to composite");
+        return;
+      }
+
+      if (!source->GetSubSource(Y) || !source->GetSubSource(Cb) ||
+          !source->GetSubSource(Cr)) {
+        // This can happen if we failed to upload the textures, most likely
+        // because of unsupported dimensions (we don't tile YCbCr textures).
+        return;
+      }
+
+      const float* yuvToRgb =
+          gfxUtils::YuvToRgbMatrix4x3RowMajor(ycbcrEffect->mYUVColorSpace);
+      memcpy(&mPSConstants.yuvColorMatrix, yuvToRgb,
+             sizeof(mPSConstants.yuvColorMatrix));
+
+      // Adjust range according to the bit depth.
+      mPSConstants.vCoefficient[0] =
+          RescalingFactorForColorDepth(ycbcrEffect->mColorDepth);
+
+      TextureSourceD3D11* sourceY = source->GetSubSource(Y)->AsSourceD3D11();
+      TextureSourceD3D11* sourceCb = source->GetSubSource(Cb)->AsSourceD3D11();
+      TextureSourceD3D11* sourceCr = source->GetSubSource(Cr)->AsSourceD3D11();
+
+      ID3D11ShaderResourceView* srViews[3] = {
+          sourceY->GetShaderResourceView(), sourceCb->GetShaderResourceView(),
+          sourceCr->GetShaderResourceView()};
+      mContext->PSSetShaderResources(TexSlot::Y, 3, srViews);
+    } break;
+    default:
+      NS_WARNING("Unknown shader type");
+      return;
+  }
+
+  Draw(aRect, pTexCoordRect);
+
+  if (restoreBlendMode) {
+    mContext->OMSetBlendState(mAttachments->mPremulBlendState, sBlendFactor,
+                              0xFFFFFFFF);
+  }
+}
+
+Maybe<IntRect> CompositorD3D11::BeginFrameForWindow(
+    const nsIntRegion& aInvalidRegion, const Maybe<IntRect>& aClipRect,
+    const IntRect& aRenderBounds, const nsIntRegion& aOpaqueRegion) {
+  MOZ_RELEASE_ASSERT(!mTarget, "mTarget not cleared properly");
+  return BeginFrame(aInvalidRegion, aClipRect, aRenderBounds, aOpaqueRegion);
+}
+
+Maybe<IntRect> CompositorD3D11::BeginFrame(const nsIntRegion& aInvalidRegion,
+                                           const Maybe<IntRect>& aClipRect,
+                                           const IntRect& aRenderBounds,
+                                           const nsIntRegion& aOpaqueRegion) {
+  // Don't composite if we are minimised. Other than for the sake of efficency,
+  // this is important because resizing our buffers when mimised will fail and
+  // cause a crash when we're restored.
+  NS_ASSERTION(mHwnd, "Couldn't find an HWND when initialising?");
+  if (mWidget->IsHidden()) {
+    // We are not going to render, and not going to call EndFrame so we have to
+    // read-unlock our textures to prevent them from accumulating.
+    return Nothing();
+  }
+
+  if (mDevice->GetDeviceRemovedReason() != S_OK) {
+    if (!mAttachments->IsDeviceReset()) {
+      gfxCriticalNote << "GFX: D3D11 skip BeginFrame with device-removed.";
+      mAttachments->SetDeviceReset();
+    }
+    return Nothing();
+  }
+
+  LayoutDeviceIntSize oldSize = mSize;
+
+  EnsureSize();
+
+  IntRect rect = IntRect(IntPoint(0, 0), mSize.ToUnknownSize());
+  // Sometimes the invalid region is larger than we want to draw.
+  nsIntRegion invalidRegionSafe;
+
+  if (mSize != oldSize) {
+    invalidRegionSafe = rect;
+  } else {
+    invalidRegionSafe.And(aInvalidRegion, rect);
+  }
+
+  IntRect invalidRect = invalidRegionSafe.GetBounds();
+
+  IntRect clipRect = invalidRect;
+  if (aClipRect) {
+    clipRect.IntersectRect(clipRect, *aClipRect);
+  }
+
+  if (clipRect.IsEmpty()) {
+    CancelFrame();
+    return Nothing();
+  }
+
+  PrepareStaticVertexBuffer();
+
+  mBackBufferInvalid.Or(mBackBufferInvalid, invalidRegionSafe);
+  if (mIsDoubleBuffered) {
+    mFrontBufferInvalid.Or(mFrontBufferInvalid, invalidRegionSafe);
+  }
+
+  // We have to call UpdateRenderTarget after we've determined the invalid regi
+  // Failed to create a render target or the view.
+  if (!UpdateRenderTarget() || !mDefaultRT || !mDefaultRT->mRTView ||
+      mSize.width <= 0 || mSize.height <= 0) {
+    return Nothing();
+  }
+
+  mCurrentClip = mBackBufferInvalid.GetBounds();
+
+  mContext->RSSetState(mAttachments->mRasterizerState);
+
+  SetRenderTarget(mDefaultRT);
+
+  IntRegion regionToClear(mCurrentClip);
+  regionToClear.Sub(regionToClear, aOpaqueRegion);
+
+  ClearRect(Rect(regionToClear.GetBounds()));
+
+  mContext->OMSetBlendState(mAttachments->mPremulBlendState, sBlendFactor,
+                            0xFFFFFFFF);
+
+  if (mAttachments->mSyncObject) {
+    if (!mAttachments->mSyncObject->Synchronize()) {
+      // It's timeout here. Since the timeout is related to the driver-removed,
+      // skip this frame.
+      return Nothing();
+    }
+  }
+
+  return Some(rect);
+}
+
+void CompositorD3D11::EndFrame() {
+  if (!profiler_feature_active(ProfilerFeature::Screenshots) && mWindowRTCopy) {
+    mWindowRTCopy = nullptr;
+  }
+
+  if (!mDefaultRT) {
+    Compositor::EndFrame();
+    mTarget = nullptr;
+    return;
+  }
+
+  if (XRE_IsParentProcess() && mDevice->GetDeviceRemovedReason() != S_OK) {
+    gfxCriticalNote << "GFX: D3D11 skip EndFrame with device-removed.";
+    Compositor::EndFrame();
+    mTarget = nullptr;
+    mCurrentRT = nullptr;
+    return;
+  }
+
+  LayoutDeviceIntSize oldSize = mSize;
+  EnsureSize();
+  if (mSize.width <= 0 || mSize.height <= 0) {
+    Compositor::EndFrame();
+    mTarget = nullptr;
+    return;
+  }
+
+  RefPtr<ID3D11Query> query;
+  if (mRecycledQuery) {
+    query = mRecycledQuery.forget();
+  } else {
+    CD3D11_QUERY_DESC desc(D3D11_QUERY_EVENT);
+    mDevice->CreateQuery(&desc, getter_AddRefs(query));
+  }
+  if (query) {
+    mContext->End(query);
+  }
+
+  if (oldSize == mSize) {
+    Present();
+    if (StaticPrefs::gfx_compositor_clearstate()) {
+      mContext->ClearState();
+    }
+  }
+
+  // Block until the previous frame's work has been completed.
+  if (mQuery) {
+    BOOL result;
+    WaitForFrameGPUQuery(mDevice, mContext, mQuery, &result);
+    // Store the query for recycling
+    mRecycledQuery = mQuery;
+  }
+  // Store the query for this frame so we can flush it next time.
+  mQuery = query;
+
+  Compositor::EndFrame();
+  mTarget = nullptr;
+  mCurrentRT = nullptr;
+}
+
+void CompositorD3D11::Present() {
+  UINT presentInterval = 0;
+
+  bool isWARP = DeviceManagerDx::Get()->IsWARP();
+  if (isWARP) {
+    // When we're using WARP we cannot present immediately as it causes us
+    // to tear when rendering. When not using WARP it appears the DWM takes
+    // care of tearing for us.
+    presentInterval = 1;
+  }
+
+  // This must be called before present so our back buffer has the validated
+  // window content.
+  if (mTarget) {
+    PaintToTarget();
+  }
+
+  RefPtr<IDXGISwapChain1> chain;
+  HRESULT hr =
+      mSwapChain->QueryInterface((IDXGISwapChain1**)getter_AddRefs(chain));
+
+  RefPtr<IDXGIKeyedMutex> mutex;
+  if (mUseMutexOnPresent && mAttachments->mSyncObject) {
+    SyncObjectD3D11Host* d3dSyncObj =
+        (SyncObjectD3D11Host*)mAttachments->mSyncObject.get();
+    mutex = d3dSyncObj->GetKeyedMutex();
+    MOZ_ASSERT(mutex);
+  }
+
+  if (SUCCEEDED(hr) && mAllowPartialPresents) {
+    DXGI_PRESENT_PARAMETERS params;
+    PodZero(&params);
+    params.DirtyRectsCount = mBackBufferInvalid.GetNumRects();
+    StackArray<RECT, 4> rects(params.DirtyRectsCount);
+
+    uint32_t i = 0;
+    for (auto iter = mBackBufferInvalid.RectIter(); !iter.Done(); iter.Next()) {
+      const IntRect& r = iter.Get();
+      rects[i].left = r.X();
+      rects[i].top = r.Y();
+      rects[i].bottom = r.YMost();
+      rects[i].right = r.XMost();
+      i++;
+    }
+
+    params.pDirtyRects = params.DirtyRectsCount ? rects.data() : nullptr;
+
+    if (mutex) {
+      hr = mutex->AcquireSync(0, 2000);
+      NS_ENSURE_TRUE_VOID(SUCCEEDED(hr));
+    }
+
+    chain->Present1(
+        presentInterval,
+        mDisableSequenceForNextFrame ? DXGI_PRESENT_DO_NOT_SEQUENCE : 0,
+        &params);
+
+    if (mutex) {
+      mutex->ReleaseSync(0);
+    }
+  } else {
+    if (mutex) {
+      hr = mutex->AcquireSync(0, 2000);
+      NS_ENSURE_TRUE_VOID(SUCCEEDED(hr));
+    }
+
+    hr = mSwapChain->Present(
+        0, mDisableSequenceForNextFrame ? DXGI_PRESENT_DO_NOT_SEQUENCE : 0);
+
+    if (mutex) {
+      mutex->ReleaseSync(0);
+    }
+
+    if (FAILED(hr)) {
+      gfxCriticalNote << "D3D11 swap chain preset failed " << hexa(hr);
+      HandleError(hr);
+    }
+  }
+
+  if (mIsDoubleBuffered) {
+    mBackBufferInvalid = mFrontBufferInvalid;
+    mFrontBufferInvalid.SetEmpty();
+  } else {
+    mBackBufferInvalid.SetEmpty();
+  }
+
+  mDisableSequenceForNextFrame = false;
+}
+
+void CompositorD3D11::CancelFrame(bool aNeedFlush) {
+  // Flush the context, otherwise the driver might hold some resources alive
+  // until the next flush or present.
+  if (aNeedFlush) {
+    mContext->Flush();
+  }
+}
+
+void CompositorD3D11::PrepareViewport(const gfx::IntSize& aSize) {
+  // This view matrix translates coordinates from 0..width and 0..height to
+  // -1..1 on the X axis, and -1..1 on the Y axis (flips the Y coordinate)
+  Matrix viewMatrix = Matrix::Translation(-1.0, 1.0);
+  viewMatrix.PreScale(2.0f / float(aSize.width), 2.0f / float(aSize.height));
+  viewMatrix.PreScale(1.0f, -1.0f);
+
+  Matrix4x4 projection = Matrix4x4::From2D(viewMatrix);
+  projection._33 = 0.0f;
+
+  PrepareViewport(aSize, projection, 0.0f, 1.0f);
+}
+
+void CompositorD3D11::PrepareViewport(const gfx::IntSize& aSize,
+                                      const gfx::Matrix4x4& aProjection,
+                                      float aZNear, float aZFar) {
+  D3D11_VIEWPORT viewport;
+  viewport.MaxDepth = aZFar;
+  viewport.MinDepth = aZNear;
+  viewport.Width = aSize.width;
+  viewport.Height = aSize.height;
+  viewport.TopLeftX = 0;
+  viewport.TopLeftY = 0;
+
+  mContext->RSSetViewports(1, &viewport);
+
+  memcpy(&mVSConstants.projection, &aProjection._11,
+         sizeof(mVSConstants.projection));
+}
+
+void CompositorD3D11::EnsureSize() { mSize = mWidget->GetClientSize(); }
+
+bool CompositorD3D11::VerifyBufferSize() {
+  mWidget->AsWindows()->UpdateCompositorWndSizeIfNecessary();
+
+  DXGI_SWAP_CHAIN_DESC swapDesc;
+  HRESULT hr;
+
+  hr = mSwapChain->GetDesc(&swapDesc);
+  if (FAILED(hr)) {
+    gfxCriticalError() << "Failed to get the description " << hexa(hr) << ", "
+                       << mSize << ", " << (int)mVerifyBuffersFailed;
+    HandleError(hr);
+    return false;
+  }
+
+  if (((static_cast<int32_t>(swapDesc.BufferDesc.Width) == mSize.width &&
+        static_cast<int32_t>(swapDesc.BufferDesc.Height) == mSize.height) ||
+       mSize.width <= 0 || mSize.height <= 0) &&
+      !mVerifyBuffersFailed) {
+    return true;
+  }
+
+  ID3D11RenderTargetView* view = nullptr;
+  mContext->OMSetRenderTargets(1, &view, nullptr);
+
+  if (mDefaultRT) {
+    RefPtr<ID3D11RenderTargetView> rtView = mDefaultRT->mRTView;
+    RefPtr<ID3D11ShaderResourceView> srView = mDefaultRT->mSRV;
+
+    // Make sure the texture, which belongs to the swapchain, is destroyed
+    // before resizing the swapchain.
+    if (mCurrentRT == mDefaultRT) {
+      mCurrentRT = nullptr;
+    }
+
+    MOZ_ASSERT(mDefaultRT->hasOneRef());
+    mDefaultRT = nullptr;
+
+    RefPtr<ID3D11Resource> resource;
+    rtView->GetResource(getter_AddRefs(resource));
+
+    ULONG newRefCnt = rtView.forget().take()->Release();
+
+    if (newRefCnt > 0) {
+      gfxCriticalError() << "mRTView not destroyed on final release! RefCnt: "
+                         << newRefCnt;
+    }
+
+    if (srView) {
+      newRefCnt = srView.forget().take()->Release();
+
+      if (newRefCnt > 0) {
+        gfxCriticalError() << "mSRV not destroyed on final release! RefCnt: "
+                           << newRefCnt;
+      }
+    }
+
+    newRefCnt = resource.forget().take()->Release();
+
+    if (newRefCnt > 0) {
+      gfxCriticalError()
+          << "Unexpecting lingering references to backbuffer! RefCnt: "
+          << newRefCnt;
+    }
+  }
+
+  hr = mSwapChain->ResizeBuffers(0, mSize.width, mSize.height,
+                                 DXGI_FORMAT_B8G8R8A8_UNORM, 0);
+
+  mVerifyBuffersFailed = FAILED(hr);
+  if (mVerifyBuffersFailed) {
+    gfxCriticalNote << "D3D11 swap resize buffers failed " << hexa(hr) << " on "
+                    << mSize;
+    HandleError(hr);
+    mBufferSize = LayoutDeviceIntSize();
+  } else {
+    mBufferSize = mSize;
+  }
+
+  mBackBufferInvalid = mFrontBufferInvalid =
+      IntRect(0, 0, mSize.width, mSize.height);
+
+  return !mVerifyBuffersFailed;
+}
+
+bool CompositorD3D11::UpdateRenderTarget() {
+  HRESULT hr;
+
+  RefPtr<ID3D11Texture2D> backBuf;
+
+  if (!VerifyBufferSize()) {
+    gfxCriticalNote << "Failed VerifyBufferSize in UpdateRenderTarget "
+                    << mSize;
+    return false;
+  }
+
+  if (mSize.width <= 0 || mSize.height <= 0) {
+    gfxCriticalNote << "Invalid size in UpdateRenderTarget " << mSize << ", "
+                    << (int)mVerifyBuffersFailed;
+    return false;
+  }
+
+  hr = mSwapChain->GetBuffer(0, __uuidof(ID3D11Texture2D),
+                             (void**)backBuf.StartAssignment());
+  if (hr == DXGI_ERROR_INVALID_CALL) {
+    // This happens on some GPUs/drivers when there's a TDR.
+    if (mDevice->GetDeviceRemovedReason() != S_OK) {
+      gfxCriticalError() << "GetBuffer returned invalid call! " << mSize << ", "
+                         << (int)mVerifyBuffersFailed;
+      return false;
+    }
+  }
+
+  if (FAILED(hr)) {
+    gfxCriticalNote << "Failed in UpdateRenderTarget " << hexa(hr) << ", "
+                    << mSize << ", " << (int)mVerifyBuffersFailed;
+    HandleError(hr);
+    return false;
+  }
+
+  IntRegion validFront;
+  validFront.Sub(mBackBufferInvalid, mFrontBufferInvalid);
+
+  if (mIsDoubleBuffered && !validFront.IsEmpty()) {
+    RefPtr<ID3D11Texture2D> frontBuf;
+    hr = mSwapChain->GetBuffer(1, __uuidof(ID3D11Texture2D),
+                               (void**)frontBuf.StartAssignment());
+
+    if (SUCCEEDED(hr)) {
+      for (auto iter = validFront.RectIter(); !iter.Done(); iter.Next()) {
+        const IntRect& rect = iter.Get();
+
+        D3D11_BOX box;
+        box.back = 1;
+        box.front = 0;
+        box.left = rect.X();
+        box.right = rect.XMost();
+        box.top = rect.Y();
+        box.bottom = rect.YMost();
+        mContext->CopySubresourceRegion(backBuf, 0, rect.X(), rect.Y(), 0,
+                                        frontBuf, 0, &box);
+      }
+      mBackBufferInvalid = mFrontBufferInvalid;
+    }
+  }
+
+  mDefaultRT = new CompositingRenderTargetD3D11(backBuf, IntPoint(0, 0));
+  mDefaultRT->SetSize(mSize.ToUnknownSize());
+
+  return true;
+}
+
+bool CompositorD3D11::UpdateConstantBuffers() {
+  HRESULT hr;
+  D3D11_MAPPED_SUBRESOURCE resource;
+  resource.pData = nullptr;
+
+  hr = mContext->Map(mAttachments->mVSConstantBuffer, 0,
+                     D3D11_MAP_WRITE_DISCARD, 0, &resource);
+  if (FAILED(hr) || !resource.pData) {
+    gfxCriticalError() << "Failed to map VSConstantBuffer. Result: " << hexa(hr)
+                       << ", " << (int)mVerifyBuffersFailed;
+    HandleError(hr);
+    return false;
+  }
+  *(VertexShaderConstants*)resource.pData = mVSConstants;
+  mContext->Unmap(mAttachments->mVSConstantBuffer, 0);
+  resource.pData = nullptr;
+
+  hr = mContext->Map(mAttachments->mPSConstantBuffer, 0,
+                     D3D11_MAP_WRITE_DISCARD, 0, &resource);
+  if (FAILED(hr) || !resource.pData) {
+    gfxCriticalError() << "Failed to map PSConstantBuffer. Result: " << hexa(hr)
+                       << ", " << (int)mVerifyBuffersFailed;
+    HandleError(hr);
+    return false;
+  }
+  *(PixelShaderConstants*)resource.pData = mPSConstants;
+  mContext->Unmap(mAttachments->mPSConstantBuffer, 0);
+
+  ID3D11Buffer* buffer = mAttachments->mVSConstantBuffer;
+
+  mContext->VSSetConstantBuffers(0, 1, &buffer);
+
+  buffer = mAttachments->mPSConstantBuffer;
+  mContext->PSSetConstantBuffers(0, 1, &buffer);
+  return true;
+}
+
+void CompositorD3D11::SetSamplerForSamplingFilter(
+    SamplingFilter aSamplingFilter) {
+  ID3D11SamplerState* sampler;
+  switch (aSamplingFilter) {
+    case SamplingFilter::POINT:
+      sampler = mAttachments->mPointSamplerState;
+      break;
+    case SamplingFilter::LINEAR:
+    default:
+      sampler = mAttachments->mLinearSamplerState;
+      break;
+  }
+
+  mContext->PSSetSamplers(0, 1, &sampler);
+}
+
+void CompositorD3D11::PaintToTarget() {
+  RefPtr<ID3D11Texture2D> backBuf;
+  HRESULT hr;
+
+  hr = mSwapChain->GetBuffer(0, __uuidof(ID3D11Texture2D),
+                             (void**)backBuf.StartAssignment());
+  if (FAILED(hr)) {
+    gfxCriticalErrorOnce(gfxCriticalError::DefaultOptions(false))
+        << "Failed in PaintToTarget 1";
+    HandleError(hr);
+    return;
+  }
+
+  D3D11_TEXTURE2D_DESC bbDesc;
+  backBuf->GetDesc(&bbDesc);
+
+  CD3D11_TEXTURE2D_DESC softDesc(bbDesc.Format, bbDesc.Width, bbDesc.Height);
+  softDesc.MipLevels = 1;
+  softDesc.CPUAccessFlags = D3D11_CPU_ACCESS_READ;
+  softDesc.Usage = D3D11_USAGE_STAGING;
+  softDesc.BindFlags = 0;
+
+  RefPtr<ID3D11Texture2D> readTexture;
+
+  hr =
+      mDevice->CreateTexture2D(&softDesc, nullptr, getter_AddRefs(readTexture));
+  if (FAILED(hr)) {
+    gfxCriticalErrorOnce(gfxCriticalError::DefaultOptions(false))
+        << "Failed in PaintToTarget 2";
+    HandleError(hr);
+    return;
+  }
+  mContext->CopyResource(readTexture, backBuf);
+
+  D3D11_MAPPED_SUBRESOURCE map;
+  hr = mContext->Map(readTexture, 0, D3D11_MAP_READ, 0, &map);
+  if (FAILED(hr)) {
+    gfxCriticalErrorOnce(gfxCriticalError::DefaultOptions(false))
+        << "Failed in PaintToTarget 3";
+    HandleError(hr);
+    return;
+  }
+  RefPtr<DataSourceSurface> sourceSurface =
+      Factory::CreateWrappingDataSourceSurface(
+          (uint8_t*)map.pData, map.RowPitch,
+          IntSize(bbDesc.Width, bbDesc.Height), SurfaceFormat::B8G8R8A8);
+  mTarget->CopySurface(sourceSurface,
+                       IntRect(0, 0, bbDesc.Width, bbDesc.Height),
+                       IntPoint(-mTargetBounds.X(), -mTargetBounds.Y()));
+
+  mTarget->Flush();
+  mContext->Unmap(readTexture, 0);
+}
+
+bool CompositorD3D11::Failed(HRESULT hr, const char* aContext) {
+  if (SUCCEEDED(hr)) return false;
+
+  gfxCriticalNote << "[D3D11] " << aContext << " failed: " << hexa(hr) << ", "
+                  << (int)mVerifyBuffersFailed;
+  return true;
+}
+
+SyncObjectHost* CompositorD3D11::GetSyncObject() {
+  if (mAttachments) {
+    return mAttachments->mSyncObject;
+  }
+  return nullptr;
+}
+
+void CompositorD3D11::HandleError(HRESULT hr, Severity aSeverity) {
+  if (SUCCEEDED(hr)) {
+    return;
+  }
+
+  if (aSeverity == Critical) {
+    MOZ_CRASH("GFX: Unrecoverable D3D11 error");
+  }
+
+  if (mDevice && DeviceManagerDx::Get()->GetCompositorDevice() != mDevice) {
+    gfxCriticalNote << "Out of sync D3D11 devices in HandleError, "
+                    << (int)mVerifyBuffersFailed;
+  }
+
+  HRESULT hrOnReset = S_OK;
+  bool deviceRemoved = hr == DXGI_ERROR_DEVICE_REMOVED;
+
+  if (deviceRemoved && mDevice) {
+    hrOnReset = mDevice->GetDeviceRemovedReason();
+  } else if (hr == DXGI_ERROR_INVALID_CALL && mDevice) {
+    hrOnReset = mDevice->GetDeviceRemovedReason();
+    if (hrOnReset != S_OK) {
+      deviceRemoved = true;
+    }
+  }
+
+  // Device reset may not be an error on our side, but can mess things up so
+  // it's useful to see it in the reports.
+  gfxCriticalError(CriticalLog::DefaultOptions(!deviceRemoved))
+      << (deviceRemoved ? "[CompositorD3D11] device removed with error code: "
+                        : "[CompositorD3D11] error code: ")
+      << hexa(hr) << ", " << hexa(hrOnReset) << ", "
+      << (int)mVerifyBuffersFailed;
+
+  // Crash if we are making invalid calls outside of device removal
+  if (hr == DXGI_ERROR_INVALID_CALL) {
+    gfxDevCrash(deviceRemoved ? LogReason::D3D11InvalidCallDeviceRemoved
+                              : LogReason::D3D11InvalidCall)
+        << "Invalid D3D11 api call";
+  }
+
+  if (aSeverity == Recoverable) {
+    NS_WARNING("Encountered a recoverable D3D11 error");
+  }
+}
+
+}  // namespace layers
+}  // namespace mozilla
diff --git a/gfx/layers/d3d11/CompositorD3D11.h b/gfx/layers/d3d11/CompositorD3D11.h
new file mode 100644
index 0000000000..d8cdd2d2f8
--- /dev/null
+++ b/gfx/layers/d3d11/CompositorD3D11.h
@@ -0,0 +1,227 @@
+/* -*- 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 MOZILLA_GFX_COMPOSITORD3D11_H
+#define MOZILLA_GFX_COMPOSITORD3D11_H
+
+#include "mozilla/gfx/2D.h"
+#include "gfx2DGlue.h"
+#include "mozilla/layers/Compositor.h"
+#include "TextureD3D11.h"
+#include <d3d11.h>
+#include <dxgi1_2.h>
+#include "ShaderDefinitionsD3D11.h"
+
+class nsWidget;
+
+namespace mozilla {
+namespace layers {
+
+#define LOGD3D11(param)
+
+class DeviceAttachmentsD3D11;
+
+class CompositorD3D11 : public Compositor {
+ public:
+  explicit CompositorD3D11(widget::CompositorWidget* aWidget);
+  virtual ~CompositorD3D11();
+
+  CompositorD3D11* AsCompositorD3D11() override { return this; }
+
+  bool Initialize(nsCString* const out_failureReason) override;
+
+  already_AddRefed<DataTextureSource> CreateDataTextureSource(
+      TextureFlags aFlags = TextureFlags::NO_FLAGS) override;
+
+  int32_t GetMaxTextureSize() const final;
+
+  already_AddRefed<CompositingRenderTarget> CreateRenderTarget(
+      const gfx::IntRect& aRect, SurfaceInitMode aInit) override;
+
+  void SetRenderTarget(CompositingRenderTarget* aSurface) override;
+  already_AddRefed<CompositingRenderTarget> GetCurrentRenderTarget()
+      const override {
+    return do_AddRef(mCurrentRT);
+  }
+  already_AddRefed<CompositingRenderTarget> GetWindowRenderTarget()
+      const override;
+
+  bool ReadbackRenderTarget(CompositingRenderTarget* aSource,
+                            AsyncReadbackBuffer* aDest) override;
+  already_AddRefed<AsyncReadbackBuffer> CreateAsyncReadbackBuffer(
+      const gfx::IntSize& aSize) override;
+
+  bool BlitRenderTarget(CompositingRenderTarget* aSource,
+                        const gfx::IntSize& aSourceSize,
+                        const gfx::IntSize& aDestSize) override;
+
+  void SetDestinationSurfaceSize(const gfx::IntSize& aSize) override {}
+
+  void ClearRect(const gfx::Rect& aRect);
+
+  void DrawQuad(const gfx::Rect& aRect, const gfx::IntRect& aClipRect,
+                const EffectChain& aEffectChain, gfx::Float aOpacity,
+                const gfx::Matrix4x4& aTransform,
+                const gfx::Rect& aVisibleRect) override;
+
+  /**
+   * Start a new frame.
+   */
+  Maybe<gfx::IntRect> BeginFrameForWindow(
+      const nsIntRegion& aInvalidRegion, const Maybe<gfx::IntRect>& aClipRect,
+      const gfx::IntRect& aRenderBounds,
+      const nsIntRegion& aOpaqueRegion) override;
+
+  /**
+   * Flush the current frame to the screen.
+   */
+  void EndFrame() override;
+
+  void CancelFrame(bool aNeedFlush = true) override;
+
+  /**
+   * Setup the viewport and projection matrix for rendering
+   * to a window of the given dimensions.
+   */
+  virtual void PrepareViewport(const gfx::IntSize& aSize);
+  virtual void PrepareViewport(const gfx::IntSize& aSize,
+                               const gfx::Matrix4x4& aProjection, float aZNear,
+                               float aZFar);
+
+#ifdef MOZ_DUMP_PAINTING
+  const char* Name() const override { return "Direct3D 11"; }
+#endif
+
+  // For TextureSourceProvider.
+  ID3D11Device* GetD3D11Device() const override { return mDevice; }
+
+  ID3D11Device* GetDevice() { return mDevice; }
+
+  ID3D11DeviceContext* GetDC() { return mContext; }
+
+  virtual void RequestAllowFrameRecording(bool aWillRecord) override {
+    mAllowFrameRecording = aWillRecord;
+  }
+
+  void Readback(gfx::DrawTarget* aDrawTarget) {
+    mTarget = aDrawTarget;
+    mTargetBounds = gfx::IntRect();
+    PaintToTarget();
+    mTarget = nullptr;
+  }
+
+  SyncObjectHost* GetSyncObject();
+
+ private:
+  enum Severity {
+    Recoverable,
+    DebugAssert,
+    Critical,
+  };
+
+  void HandleError(HRESULT hr, Severity aSeverity = DebugAssert);
+
+  // Same as Failed(), except the severity is critical (with no abort) and
+  // a string prefix must be provided.
+  bool Failed(HRESULT hr, const char* aContext);
+
+  // ensure mSize is up to date with respect to mWidget
+  void EnsureSize();
+  bool VerifyBufferSize();
+  bool UpdateRenderTarget();
+  bool UpdateConstantBuffers();
+  void SetSamplerForSamplingFilter(gfx::SamplingFilter aSamplingFilter);
+
+  ID3D11PixelShader* GetPSForEffect(Effect* aEffect);
+  Maybe<gfx::IntRect> BeginFrame(const nsIntRegion& aInvalidRegion,
+                                 const Maybe<gfx::IntRect>& aClipRect,
+                                 const gfx::IntRect& aRenderBounds,
+                                 const nsIntRegion& aOpaqueRegion);
+  void PaintToTarget();
+  RefPtr<ID3D11Texture2D> CreateTexture(const gfx::IntRect& aRect,
+                                        const CompositingRenderTarget* aSource,
+                                        const gfx::IntPoint& aSourcePoint);
+
+  void PrepareStaticVertexBuffer();
+
+  void Draw(const gfx::Rect& aGeometry, const gfx::Rect* aTexCoords);
+
+  void Present();
+
+  template <typename VertexType>
+  void SetVertexBuffer(ID3D11Buffer* aBuffer);
+
+  /**
+   * Whether or not the recorder should be recording frames.
+   *
+   * When this returns true, the CompositorD3D11 will allocate and return window
+   * render targets from |GetWindowRenderTarget|, which otherwise returns
+   * nullptr.
+   *
+   * This will be true when either we are recording a profile with screenshots
+   * enabled or the |LayerManagerComposite| has requested us to record frames
+   * for the |CompositionRecorder|.
+   */
+  bool ShouldAllowFrameRecording() const;
+
+  // The DrawTarget from BeginFrameForTarget, which EndFrame needs to copy the
+  // window contents into.
+  // Only non-null between BeginFrameForTarget and EndFrame.
+  RefPtr<gfx::DrawTarget> mTarget;
+  gfx::IntRect mTargetBounds;
+
+  RefPtr<ID3D11DeviceContext> mContext;
+  RefPtr<ID3D11Device> mDevice;
+  RefPtr<IDXGISwapChain> mSwapChain;
+  RefPtr<CompositingRenderTargetD3D11> mDefaultRT;
+  RefPtr<CompositingRenderTargetD3D11> mCurrentRT;
+  mutable RefPtr<CompositingRenderTargetD3D11> mWindowRTCopy;
+
+  RefPtr<ID3D11Query> mQuery;
+  RefPtr<ID3D11Query> mRecycledQuery;
+
+  RefPtr<DeviceAttachmentsD3D11> mAttachments;
+
+  LayoutDeviceIntSize mSize;
+
+  // The size that we passed to ResizeBuffers to set
+  // the swapchain buffer size.
+  LayoutDeviceIntSize mBufferSize;
+
+  HWND mHwnd;
+
+  D3D_FEATURE_LEVEL mFeatureLevel;
+
+  VertexShaderConstants mVSConstants;
+  PixelShaderConstants mPSConstants;
+  bool mDisableSequenceForNextFrame;
+  bool mAllowPartialPresents;
+  bool mIsDoubleBuffered;
+
+  gfx::IntRegion mFrontBufferInvalid;
+  gfx::IntRegion mBackBufferInvalid;
+  // This is the clip rect applied to the default DrawTarget (i.e. the window)
+  gfx::IntRect mCurrentClip;
+
+  bool mVerifyBuffersFailed;
+  bool mUseMutexOnPresent;
+  bool mAllowFrameRecording;
+};
+
+namespace TexSlot {
+static const int RGB = 0;
+static const int Y = 1;
+static const int Cb = 2;
+static const int Cr = 3;
+static const int RGBWhite = 4;
+static const int Mask = 5;
+static const int Backdrop = 6;
+}  // namespace TexSlot
+
+}  // namespace layers
+}  // namespace mozilla
+
+#endif
diff --git a/gfx/layers/d3d11/CompositorD3D11.hlsl b/gfx/layers/d3d11/CompositorD3D11.hlsl
new file mode 100644
index 0000000000..4e13011782
--- /dev/null
+++ b/gfx/layers/d3d11/CompositorD3D11.hlsl
@@ -0,0 +1,186 @@
+/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ * 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/. */
+
+#include "BlendShaderConstants.h"
+
+typedef float4 rect;
+
+float4x4 mLayerTransform : register(vs, c0);
+float4x4 mProjection : register(vs, c4);
+float4 vRenderTargetOffset : register(vs, c8);
+rect vTextureCoords : register(vs, c9);
+rect vLayerQuad : register(vs, c10);
+
+float4 fLayerColor : register(ps, c0);
+float fLayerOpacity : register(ps, c1);
+
+// x = layer type
+// y = mask type
+// z = blend op
+// w = is premultiplied
+
+float fCoefficient : register(ps, c3);
+
+row_major float3x3 mYuvColorMatrix : register(ps, c4);
+
+sampler sSampler : register(ps, s0);
+
+// The mix-blend mega shader uses all variables, so we have to make sure they
+// are assigned fixed slots.
+Texture2D tRGB : register(ps, t0);
+Texture2D tY : register(ps, t1);
+Texture2D tCb : register(ps, t2);
+Texture2D tCr : register(ps, t3);
+
+struct VS_INPUT {
+  float2 vPosition : POSITION;
+};
+
+struct VS_TEX_INPUT {
+  float2 vPosition : POSITION;
+  float2 vTexCoords : TEXCOORD0;
+};
+
+struct VS_OUTPUT {
+  float4 vPosition : SV_Position;
+  float2 vTexCoords : TEXCOORD0;
+};
+
+struct PS_OUTPUT {
+  float4 vSrc;
+  float4 vAlpha;
+};
+
+float2 TexCoords(const float2 aPosition)
+{
+  float2 result;
+  const float2 size = vTextureCoords.zw;
+  result.x = vTextureCoords.x + aPosition.x * size.x;
+  result.y = vTextureCoords.y + aPosition.y * size.y;
+
+  return result;
+}
+
+SamplerState LayerTextureSamplerLinear
+{
+    Filter = MIN_MAG_MIP_LINEAR;
+    AddressU = Clamp;
+    AddressV = Clamp;
+};
+
+float4 TransformedPosition(float2 aInPosition)
+{
+  // the current vertex's position on the quad
+  // [x,y,0,1] is mandated by the CSS Transforms spec as the point value to transform
+  float4 position = float4(0, 0, 0, 1);
+
+  // We use 4 component floats to uniquely describe a rectangle, by the structure
+  // of x, y, width, height. This allows us to easily generate the 4 corners
+  // of any rectangle from the 4 corners of the 0,0-1,1 quad that we use as the
+  // stream source for our LayerQuad vertex shader. We do this by doing:
+  // Xout = x + Xin * width
+  // Yout = y + Yin * height
+  float2 size = vLayerQuad.zw;
+  position.x = vLayerQuad.x + aInPosition.x * size.x;
+  position.y = vLayerQuad.y + aInPosition.y * size.y;
+
+  position = mul(mLayerTransform, position);
+
+  return position;
+}
+
+float4 VertexPosition(float4 aTransformedPosition)
+{
+  float4 result;
+  result.w = aTransformedPosition.w;
+  result.xyz = aTransformedPosition.xyz / aTransformedPosition.w;
+  result -= vRenderTargetOffset;
+  result.xyz *= result.w;
+
+  result = mul(mProjection, result);
+
+  return result;
+}
+
+VS_OUTPUT LayerQuadVS(const VS_INPUT aVertex)
+{
+  VS_OUTPUT outp;
+  float4 position = TransformedPosition(aVertex.vPosition);
+
+  outp.vPosition = VertexPosition(position);
+  outp.vTexCoords = TexCoords(aVertex.vPosition.xy);
+
+  return outp;
+}
+
+/* From Rec601:
+[R]   [1.1643835616438356,  0.0,                 1.5960267857142858]      [ Y -  16]
+[G] = [1.1643835616438358, -0.3917622900949137, -0.8129676472377708]    x [Cb - 128]
+[B]   [1.1643835616438356,  2.017232142857143,   8.862867620416422e-17]   [Cr - 128]
+
+For [0,1] instead of [0,255], and to 5 places:
+[R]   [1.16438,  0.00000,  1.59603]   [ Y - 0.06275]
+[G] = [1.16438, -0.39176, -0.81297] x [Cb - 0.50196]
+[B]   [1.16438,  2.01723,  0.00000]   [Cr - 0.50196]
+
+From Rec709:
+[R]   [1.1643835616438356,  4.2781193979771426e-17, 1.7927410714285714]     [ Y -  16]
+[G] = [1.1643835616438358, -0.21324861427372963,   -0.532909328559444]    x [Cb - 128]
+[B]   [1.1643835616438356,  2.1124017857142854,     0.0]                    [Cr - 128]
+
+For [0,1] instead of [0,255], and to 5 places:
+[R]   [1.16438,  0.00000,  1.79274]   [ Y - 0.06275]
+[G] = [1.16438, -0.21325, -0.53291] x [Cb - 0.50196]
+[B]   [1.16438,  2.11240,  0.00000]   [Cr - 0.50196]
+*/
+float4 CalculateYCbCrColor(const float2 aTexCoords)
+{
+  float3 yuv = float3(
+    tY.Sample(sSampler, aTexCoords).r,
+    tCb.Sample(sSampler, aTexCoords).r,
+    tCr.Sample(sSampler, aTexCoords).r);
+  yuv = yuv * fCoefficient - float3(0.06275, 0.50196, 0.50196);
+
+  return float4(mul(mYuvColorMatrix, yuv), 1.0);
+}
+
+float4 CalculateNV12Color(const float2 aTexCoords)
+{
+  float3 yuv = float3(
+    tY.Sample(sSampler, aTexCoords).r,
+    tCb.Sample(sSampler, aTexCoords).r,
+    tCb.Sample(sSampler, aTexCoords).g);
+  yuv = yuv * fCoefficient - float3(0.06275, 0.50196, 0.50196);
+
+  return float4(mul(mYuvColorMatrix, yuv), 1.0);
+}
+
+float4 SolidColorShader(const VS_OUTPUT aVertex) : SV_Target
+{
+  return fLayerColor;
+}
+
+float4 RGBAShader(const VS_OUTPUT aVertex) : SV_Target
+{
+  return tRGB.Sample(sSampler, aVertex.vTexCoords) * fLayerOpacity;
+}
+
+float4 RGBShader(const VS_OUTPUT aVertex) : SV_Target
+{
+  float4 result;
+  result = tRGB.Sample(sSampler, aVertex.vTexCoords) * fLayerOpacity;
+  result.a = fLayerOpacity;
+  return result;
+}
+
+float4 YCbCrShader(const VS_OUTPUT aVertex) : SV_Target
+{
+  return CalculateYCbCrColor(aVertex.vTexCoords) * fLayerOpacity;
+}
+
+float4 NV12Shader(const VS_OUTPUT aVertex) : SV_Target
+{
+  return CalculateNV12Color(aVertex.vTexCoords) * fLayerOpacity;
+}
diff --git a/gfx/layers/d3d11/DeviceAttachmentsD3D11.cpp b/gfx/layers/d3d11/DeviceAttachmentsD3D11.cpp
new file mode 100644
index 0000000000..3a80e30cc4
--- /dev/null
+++ b/gfx/layers/d3d11/DeviceAttachmentsD3D11.cpp
@@ -0,0 +1,249 @@
+/* -*- 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/. */
+
+#include "DeviceAttachmentsD3D11.h"
+#include "mozilla/Telemetry.h"
+#include "mozilla/gfx/Logging.h"
+#include "mozilla/layers/Compositor.h"
+#include "CompositorD3D11Shaders.h"
+#include "ShaderDefinitionsD3D11.h"
+
+namespace mozilla {
+namespace layers {
+
+using namespace gfx;
+
+DeviceAttachmentsD3D11::DeviceAttachmentsD3D11(ID3D11Device* device)
+    : mDevice(device),
+      mContinueInit(true),
+      mInitialized(false),
+      mDeviceReset(false) {}
+
+DeviceAttachmentsD3D11::~DeviceAttachmentsD3D11() {}
+
+/* static */
+RefPtr<DeviceAttachmentsD3D11> DeviceAttachmentsD3D11::Create(
+    ID3D11Device* aDevice) {
+  // We don't return null even if the attachments object even if it fails to
+  // initialize, so the compositor can grab the failure ID.
+  RefPtr<DeviceAttachmentsD3D11> attachments =
+      new DeviceAttachmentsD3D11(aDevice);
+  attachments->Initialize();
+  return attachments.forget();
+}
+
+bool DeviceAttachmentsD3D11::Initialize() {
+  D3D11_INPUT_ELEMENT_DESC layout[] = {
+      {"POSITION", 0, DXGI_FORMAT_R32G32_FLOAT, 0, 0,
+       D3D11_INPUT_PER_VERTEX_DATA, 0},
+  };
+
+  HRESULT hr;
+  hr = mDevice->CreateInputLayout(
+      layout, sizeof(layout) / sizeof(D3D11_INPUT_ELEMENT_DESC), LayerQuadVS,
+      sizeof(LayerQuadVS), getter_AddRefs(mInputLayout));
+
+  if (Failed(hr, "CreateInputLayout")) {
+    mInitFailureId = "FEATURE_FAILURE_D3D11_INPUT_LAYOUT";
+    return false;
+  }
+
+  Vertex vertices[] = {{{0.0, 0.0}}, {{1.0, 0.0}}, {{0.0, 1.0}}, {{1.0, 1.0}}};
+  CD3D11_BUFFER_DESC bufferDesc(sizeof(vertices), D3D11_BIND_VERTEX_BUFFER);
+  D3D11_SUBRESOURCE_DATA data;
+  data.pSysMem = (void*)vertices;
+
+  hr = mDevice->CreateBuffer(&bufferDesc, &data, getter_AddRefs(mVertexBuffer));
+  if (Failed(hr, "create vertex buffer")) {
+    mInitFailureId = "FEATURE_FAILURE_D3D11_VERTEX_BUFFER";
+    return false;
+  }
+  if (!CreateShaders()) {
+    mInitFailureId = "FEATURE_FAILURE_D3D11_CREATE_SHADERS";
+    return false;
+  }
+
+  CD3D11_BUFFER_DESC cBufferDesc(sizeof(VertexShaderConstants),
+                                 D3D11_BIND_CONSTANT_BUFFER,
+                                 D3D11_USAGE_DYNAMIC, D3D11_CPU_ACCESS_WRITE);
+
+  hr = mDevice->CreateBuffer(&cBufferDesc, nullptr,
+                             getter_AddRefs(mVSConstantBuffer));
+  if (Failed(hr, "create vs buffer")) {
+    mInitFailureId = "FEATURE_FAILURE_D3D11_VS_BUFFER";
+    return false;
+  }
+
+  cBufferDesc.ByteWidth = sizeof(PixelShaderConstants);
+  hr = mDevice->CreateBuffer(&cBufferDesc, nullptr,
+                             getter_AddRefs(mPSConstantBuffer));
+  if (Failed(hr, "create ps buffer")) {
+    mInitFailureId = "FEATURE_FAILURE_D3D11_PS_BUFFER";
+    return false;
+  }
+
+  CD3D11_RASTERIZER_DESC rastDesc(D3D11_DEFAULT);
+  rastDesc.CullMode = D3D11_CULL_NONE;
+  rastDesc.ScissorEnable = TRUE;
+
+  hr = mDevice->CreateRasterizerState(&rastDesc,
+                                      getter_AddRefs(mRasterizerState));
+  if (Failed(hr, "create rasterizer")) {
+    mInitFailureId = "FEATURE_FAILURE_D3D11_RASTERIZER";
+    return false;
+  }
+
+  CD3D11_SAMPLER_DESC samplerDesc(D3D11_DEFAULT);
+  hr = mDevice->CreateSamplerState(&samplerDesc,
+                                   getter_AddRefs(mLinearSamplerState));
+  if (Failed(hr, "create linear sampler")) {
+    mInitFailureId = "FEATURE_FAILURE_D3D11_LINEAR_SAMPLER";
+    return false;
+  }
+
+  samplerDesc.Filter = D3D11_FILTER_MIN_MAG_MIP_POINT;
+  hr = mDevice->CreateSamplerState(&samplerDesc,
+                                   getter_AddRefs(mPointSamplerState));
+  if (Failed(hr, "create point sampler")) {
+    mInitFailureId = "FEATURE_FAILURE_D3D11_POINT_SAMPLER";
+    return false;
+  }
+
+  CD3D11_BLEND_DESC blendDesc(D3D11_DEFAULT);
+  D3D11_RENDER_TARGET_BLEND_DESC rtBlendPremul = {TRUE,
+                                                  D3D11_BLEND_ONE,
+                                                  D3D11_BLEND_INV_SRC_ALPHA,
+                                                  D3D11_BLEND_OP_ADD,
+                                                  D3D11_BLEND_ONE,
+                                                  D3D11_BLEND_INV_SRC_ALPHA,
+                                                  D3D11_BLEND_OP_ADD,
+                                                  D3D11_COLOR_WRITE_ENABLE_ALL};
+  blendDesc.RenderTarget[0] = rtBlendPremul;
+  hr = mDevice->CreateBlendState(&blendDesc, getter_AddRefs(mPremulBlendState));
+  if (Failed(hr, "create pm blender")) {
+    mInitFailureId = "FEATURE_FAILURE_D3D11_PM_BLENDER";
+    return false;
+  }
+
+  D3D11_RENDER_TARGET_BLEND_DESC rtCopyPremul = {TRUE,
+                                                 D3D11_BLEND_ONE,
+                                                 D3D11_BLEND_ZERO,
+                                                 D3D11_BLEND_OP_ADD,
+                                                 D3D11_BLEND_ONE,
+                                                 D3D11_BLEND_ZERO,
+                                                 D3D11_BLEND_OP_ADD,
+                                                 D3D11_COLOR_WRITE_ENABLE_ALL};
+  blendDesc.RenderTarget[0] = rtCopyPremul;
+  hr = mDevice->CreateBlendState(&blendDesc, getter_AddRefs(mPremulCopyState));
+  if (Failed(hr, "create pm copy blender")) {
+    mInitFailureId = "FEATURE_FAILURE_D3D11_PM_COPY_BLENDER";
+    return false;
+  }
+
+  D3D11_RENDER_TARGET_BLEND_DESC rtBlendNonPremul = {
+      TRUE,
+      D3D11_BLEND_SRC_ALPHA,
+      D3D11_BLEND_INV_SRC_ALPHA,
+      D3D11_BLEND_OP_ADD,
+      D3D11_BLEND_ONE,
+      D3D11_BLEND_INV_SRC_ALPHA,
+      D3D11_BLEND_OP_ADD,
+      D3D11_COLOR_WRITE_ENABLE_ALL};
+  blendDesc.RenderTarget[0] = rtBlendNonPremul;
+  hr = mDevice->CreateBlendState(&blendDesc,
+                                 getter_AddRefs(mNonPremulBlendState));
+  if (Failed(hr, "create npm blender")) {
+    mInitFailureId = "FEATURE_FAILURE_D3D11_NPM_BLENDER";
+    return false;
+  }
+
+  D3D11_RENDER_TARGET_BLEND_DESC rtBlendDisabled = {
+      FALSE,
+      D3D11_BLEND_SRC_ALPHA,
+      D3D11_BLEND_INV_SRC_ALPHA,
+      D3D11_BLEND_OP_ADD,
+      D3D11_BLEND_ONE,
+      D3D11_BLEND_INV_SRC_ALPHA,
+      D3D11_BLEND_OP_ADD,
+      D3D11_COLOR_WRITE_ENABLE_ALL};
+  blendDesc.RenderTarget[0] = rtBlendDisabled;
+  hr = mDevice->CreateBlendState(&blendDesc,
+                                 getter_AddRefs(mDisabledBlendState));
+  if (Failed(hr, "create null blender")) {
+    mInitFailureId = "FEATURE_FAILURE_D3D11_NULL_BLENDER";
+    return false;
+  }
+
+  if (!InitSyncObject()) {
+    mInitFailureId = "FEATURE_FAILURE_D3D11_OBJ_SYNC";
+    return false;
+  }
+
+  mInitialized = true;
+  return true;
+}
+
+bool DeviceAttachmentsD3D11::InitSyncObject() {
+  // Sync object is not supported on WARP.
+  if (DeviceManagerDx::Get()->IsWARP()) {
+    return true;
+  }
+
+  MOZ_ASSERT(!mSyncObject);
+  MOZ_ASSERT(mDevice);
+
+  mSyncObject = SyncObjectHost::CreateSyncObjectHost(mDevice);
+  MOZ_ASSERT(mSyncObject);
+
+  return mSyncObject->Init();
+}
+
+bool DeviceAttachmentsD3D11::CreateShaders() {
+  InitVertexShader(sLayerQuadVS, mVSQuadShader);
+
+  InitPixelShader(sSolidColorShader, mSolidColorShader);
+  InitPixelShader(sRGBShader, mRGBShader);
+  InitPixelShader(sRGBAShader, mRGBAShader);
+  InitPixelShader(sYCbCrShader, mYCbCrShader);
+  InitPixelShader(sNV12Shader, mNV12Shader);
+  return mContinueInit;
+}
+
+void DeviceAttachmentsD3D11::InitVertexShader(const ShaderBytes& aShader,
+                                              ID3D11VertexShader** aOut) {
+  if (!mContinueInit) {
+    return;
+  }
+  if (Failed(mDevice->CreateVertexShader(aShader.mData, aShader.mLength,
+                                         nullptr, aOut),
+             "create vs")) {
+    mContinueInit = false;
+  }
+}
+
+void DeviceAttachmentsD3D11::InitPixelShader(const ShaderBytes& aShader,
+                                             ID3D11PixelShader** aOut) {
+  if (!mContinueInit) {
+    return;
+  }
+  if (Failed(mDevice->CreatePixelShader(aShader.mData, aShader.mLength, nullptr,
+                                        aOut),
+             "create ps")) {
+    mContinueInit = false;
+  }
+}
+
+bool DeviceAttachmentsD3D11::Failed(HRESULT hr, const char* aContext) {
+  if (SUCCEEDED(hr)) {
+    return false;
+  }
+
+  gfxCriticalNote << "[D3D11] " << aContext << " failed: " << hexa(hr);
+  return true;
+}
+
+}  // namespace layers
+}  // namespace mozilla
diff --git a/gfx/layers/d3d11/DeviceAttachmentsD3D11.h b/gfx/layers/d3d11/DeviceAttachmentsD3D11.h
new file mode 100644
index 0000000000..4837dc76f1
--- /dev/null
+++ b/gfx/layers/d3d11/DeviceAttachmentsD3D11.h
@@ -0,0 +1,96 @@
+/* -*- 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 mozilla_gfx_layers_d3d11_DeviceAttachmentsD3D11_h
+#define mozilla_gfx_layers_d3d11_DeviceAttachmentsD3D11_h
+
+#include "mozilla/EnumeratedArray.h"
+#include "mozilla/RefPtr.h"
+#include "mozilla/gfx/DeviceManagerDx.h"
+#include "mozilla/layers/CompositorTypes.h"
+#include "mozilla/layers/SyncObject.h"
+#include <d3d11.h>
+#include <dxgi1_2.h>
+
+namespace mozilla {
+namespace layers {
+
+struct ShaderBytes;
+
+class DeviceAttachmentsD3D11 final {
+  NS_INLINE_DECL_THREADSAFE_REFCOUNTING(DeviceAttachmentsD3D11);
+
+ public:
+  static RefPtr<DeviceAttachmentsD3D11> Create(ID3D11Device* aDevice);
+
+  bool IsValid() const { return mInitialized; }
+  const nsCString& GetFailureId() const {
+    MOZ_ASSERT(!IsValid());
+    return mInitFailureId;
+  }
+
+  RefPtr<ID3D11InputLayout> mInputLayout;
+
+  RefPtr<ID3D11Buffer> mVertexBuffer;
+
+  RefPtr<ID3D11VertexShader> mVSQuadShader;
+
+  RefPtr<ID3D11PixelShader> mSolidColorShader;
+  RefPtr<ID3D11PixelShader> mRGBAShader;
+  RefPtr<ID3D11PixelShader> mRGBShader;
+  RefPtr<ID3D11PixelShader> mYCbCrShader;
+  RefPtr<ID3D11PixelShader> mNV12Shader;
+  RefPtr<ID3D11Buffer> mPSConstantBuffer;
+  RefPtr<ID3D11Buffer> mVSConstantBuffer;
+  RefPtr<ID3D11RasterizerState> mRasterizerState;
+  RefPtr<ID3D11SamplerState> mLinearSamplerState;
+  RefPtr<ID3D11SamplerState> mPointSamplerState;
+
+  RefPtr<ID3D11BlendState> mPremulBlendState;
+  RefPtr<ID3D11BlendState> mPremulCopyState;
+  RefPtr<ID3D11BlendState> mNonPremulBlendState;
+  RefPtr<ID3D11BlendState> mDisabledBlendState;
+
+  RefPtr<SyncObjectHost> mSyncObject;
+
+  void SetDeviceReset() { mDeviceReset = true; }
+  bool IsDeviceReset() const { return mDeviceReset; }
+
+ private:
+  explicit DeviceAttachmentsD3D11(ID3D11Device* device);
+  ~DeviceAttachmentsD3D11();
+
+  bool Initialize();
+  bool CreateShaders();
+  bool InitSyncObject();
+
+  void InitVertexShader(const ShaderBytes& aShader,
+                        RefPtr<ID3D11VertexShader>& aDest) {
+    InitVertexShader(aShader, getter_AddRefs(aDest));
+  }
+  void InitPixelShader(const ShaderBytes& aShader,
+                       RefPtr<ID3D11PixelShader>& aDest) {
+    InitPixelShader(aShader, getter_AddRefs(aDest));
+  }
+
+  void InitVertexShader(const ShaderBytes& aShader, ID3D11VertexShader** aOut);
+  void InitPixelShader(const ShaderBytes& aShader, ID3D11PixelShader** aOut);
+
+  bool Failed(HRESULT hr, const char* aContext);
+
+ private:
+  // Only used during initialization.
+  RefPtr<ID3D11Device> mDevice;
+  bool mContinueInit;
+  bool mInitialized;
+  bool mDeviceReset;
+  nsCString mInitFailureId;
+};
+
+}  // namespace layers
+}  // namespace mozilla
+
+#endif  // mozilla_gfx_layers_d3d11_DeviceAttachmentsD3D11_h
diff --git a/gfx/layers/d3d11/HelpersD3D11.h b/gfx/layers/d3d11/HelpersD3D11.h
new file mode 100644
index 0000000000..ef40acd0a0
--- /dev/null
+++ b/gfx/layers/d3d11/HelpersD3D11.h
@@ -0,0 +1,67 @@
+/* -*- 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 mozilla_gfx_layers_d3d11_HelpersD3D11_h
+#define mozilla_gfx_layers_d3d11_HelpersD3D11_h
+
+#include <d3d11.h>
+#include <array>
+#include "mozilla/Telemetry.h"
+#include "mozilla/TimeStamp.h"
+
+namespace mozilla {
+namespace layers {
+
+template <typename T>
+static inline bool WaitForGPUQuery(ID3D11Device* aDevice,
+                                   ID3D11DeviceContext* aContext,
+                                   ID3D11Query* aQuery, T* aOut) {
+  TimeStamp start = TimeStamp::Now();
+  while (aContext->GetData(aQuery, aOut, sizeof(*aOut), 0) != S_OK) {
+    if (aDevice->GetDeviceRemovedReason() != S_OK) {
+      return false;
+    }
+    if (TimeStamp::Now() - start > TimeDuration::FromSeconds(2)) {
+      return false;
+    }
+    Sleep(0);
+  }
+  return true;
+}
+
+static inline bool WaitForFrameGPUQuery(ID3D11Device* aDevice,
+                                        ID3D11DeviceContext* aContext,
+                                        ID3D11Query* aQuery, BOOL* aOut) {
+  TimeStamp start = TimeStamp::Now();
+  bool success = true;
+  while (aContext->GetData(aQuery, aOut, sizeof(*aOut), 0) != S_OK) {
+    if (aDevice->GetDeviceRemovedReason() != S_OK) {
+      return false;
+    }
+    if (TimeStamp::Now() - start > TimeDuration::FromSeconds(2)) {
+      success = false;
+      break;
+    }
+    Sleep(0);
+  }
+  Telemetry::AccumulateTimeDelta(Telemetry::GPU_WAIT_TIME_MS, start);
+  return success;
+}
+
+inline void ClearResource(ID3D11Device* const device, ID3D11Resource* const res,
+                          const std::array<float, 4>& vals) {
+  RefPtr<ID3D11RenderTargetView> rtv;
+  (void)device->CreateRenderTargetView(res, nullptr, getter_AddRefs(rtv));
+
+  RefPtr<ID3D11DeviceContext> context;
+  device->GetImmediateContext(getter_AddRefs(context));
+  context->ClearRenderTargetView(rtv, vals.data());
+}
+
+}  // namespace layers
+}  // namespace mozilla
+
+#endif  // mozilla_gfx_layers_d3d11_HelpersD3D11_h
diff --git a/gfx/layers/d3d11/ShaderDefinitionsD3D11.h b/gfx/layers/d3d11/ShaderDefinitionsD3D11.h
new file mode 100644
index 0000000000..1e15cf7987
--- /dev/null
+++ b/gfx/layers/d3d11/ShaderDefinitionsD3D11.h
@@ -0,0 +1,40 @@
+/* -*- 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 mozilla_gfx_layers_d3d11_ShaderDefinitionsD3D11_h
+#define mozilla_gfx_layers_d3d11_ShaderDefinitionsD3D11_h
+
+#include "mozilla/gfx/Rect.h"
+
+namespace mozilla {
+namespace layers {
+
+struct VertexShaderConstants {
+  float layerTransform[4][4];
+  float projection[4][4];
+  float renderTargetOffset[4];
+  gfx::Rect textureCoords;
+  gfx::Rect layerQuad;
+  float maskTransform[4][4];
+  float backdropTransform[4][4];
+};
+
+struct PixelShaderConstants {
+  float layerColor[4];
+  float layerOpacity[4];
+  int blendConfig[4];
+  float vCoefficient[4];
+  float yuvColorMatrix[3][4];
+};
+
+struct Vertex {
+  float position[2];
+};
+
+}  // namespace layers
+}  // namespace mozilla
+
+#endif  // mozilla_gfx_layers_d3d11_ShaderDefinitionsD3D11_h
diff --git a/gfx/layers/d3d11/TextureD3D11.cpp b/gfx/layers/d3d11/TextureD3D11.cpp
new file mode 100644
index 0000000000..a7bcc02b8f
--- /dev/null
+++ b/gfx/layers/d3d11/TextureD3D11.cpp
@@ -0,0 +1,1962 @@
+/* -*- 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/. */
+
+#include "TextureD3D11.h"
+
+#include "CompositorD3D11.h"
+#include "Effects.h"
+#include "MainThreadUtils.h"
+#include "gfx2DGlue.h"
+#include "gfxContext.h"
+#include "gfxWindowsPlatform.h"
+#include "mozilla/StaticPrefs_gfx.h"
+#include "mozilla/Telemetry.h"
+#include "mozilla/gfx/DataSurfaceHelpers.h"
+#include "mozilla/gfx/DeviceManagerDx.h"
+#include "mozilla/gfx/Logging.h"
+#include "mozilla/gfx/gfxVars.h"
+#include "mozilla/layers/CompositorBridgeChild.h"
+#include "mozilla/layers/D3D11TextureIMFSampleImage.h"
+#include "mozilla/layers/HelpersD3D11.h"
+#include "mozilla/webrender/RenderD3D11TextureHost.h"
+#include "mozilla/webrender/RenderThread.h"
+#include "mozilla/webrender/WebRenderAPI.h"
+
+namespace mozilla {
+
+using namespace gfx;
+
+namespace layers {
+
+static const GUID sD3D11TextureUsage = {
+    0xd89275b0,
+    0x6c7d,
+    0x4038,
+    {0xb5, 0xfa, 0x4d, 0x87, 0x16, 0xd5, 0xcc, 0x4e}};
+
+/* This class gets its lifetime tied to a D3D texture
+ * and increments memory usage on construction and decrements
+ * on destruction */
+class TextureMemoryMeasurer final : public IUnknown {
+ public:
+  explicit TextureMemoryMeasurer(size_t aMemoryUsed) {
+    mMemoryUsed = aMemoryUsed;
+    gfxWindowsPlatform::sD3D11SharedTextures += mMemoryUsed;
+    mRefCnt = 0;
+  }
+  STDMETHODIMP_(ULONG) AddRef() {
+    mRefCnt++;
+    return mRefCnt;
+  }
+  STDMETHODIMP QueryInterface(REFIID riid, void** ppvObject) {
+    IUnknown* punk = nullptr;
+    if (riid == IID_IUnknown) {
+      punk = this;
+    }
+    *ppvObject = punk;
+    if (punk) {
+      punk->AddRef();
+      return S_OK;
+    } else {
+      return E_NOINTERFACE;
+    }
+  }
+
+  STDMETHODIMP_(ULONG) Release() {
+    int refCnt = --mRefCnt;
+    if (refCnt == 0) {
+      gfxWindowsPlatform::sD3D11SharedTextures -= mMemoryUsed;
+      delete this;
+    }
+    return refCnt;
+  }
+
+ private:
+  int mRefCnt;
+  int mMemoryUsed;
+
+  ~TextureMemoryMeasurer() = default;
+};
+
+static DXGI_FORMAT SurfaceFormatToDXGIFormat(gfx::SurfaceFormat aFormat) {
+  switch (aFormat) {
+    case SurfaceFormat::B8G8R8A8:
+      return DXGI_FORMAT_B8G8R8A8_UNORM;
+    case SurfaceFormat::B8G8R8X8:
+      return DXGI_FORMAT_B8G8R8A8_UNORM;
+    case SurfaceFormat::R8G8B8A8:
+      return DXGI_FORMAT_R8G8B8A8_UNORM;
+    case SurfaceFormat::R8G8B8X8:
+      return DXGI_FORMAT_R8G8B8A8_UNORM;
+    case SurfaceFormat::A8:
+      return DXGI_FORMAT_R8_UNORM;
+    case SurfaceFormat::A16:
+      return DXGI_FORMAT_R16_UNORM;
+    default:
+      MOZ_ASSERT(false, "unsupported format");
+      return DXGI_FORMAT_UNKNOWN;
+  }
+}
+
+void ReportTextureMemoryUsage(ID3D11Texture2D* aTexture, size_t aBytes) {
+  aTexture->SetPrivateDataInterface(sD3D11TextureUsage,
+                                    new TextureMemoryMeasurer(aBytes));
+}
+
+static uint32_t GetRequiredTilesD3D11(uint32_t aSize, uint32_t aMaxSize) {
+  uint32_t requiredTiles = aSize / aMaxSize;
+  if (aSize % aMaxSize) {
+    requiredTiles++;
+  }
+  return requiredTiles;
+}
+
+static IntRect GetTileRectD3D11(uint32_t aID, IntSize aSize,
+                                uint32_t aMaxSize) {
+  uint32_t horizontalTiles = GetRequiredTilesD3D11(aSize.width, aMaxSize);
+  uint32_t verticalTiles = GetRequiredTilesD3D11(aSize.height, aMaxSize);
+
+  uint32_t verticalTile = aID / horizontalTiles;
+  uint32_t horizontalTile = aID % horizontalTiles;
+
+  return IntRect(
+      horizontalTile * aMaxSize, verticalTile * aMaxSize,
+      horizontalTile < (horizontalTiles - 1) ? aMaxSize
+                                             : aSize.width % aMaxSize,
+      verticalTile < (verticalTiles - 1) ? aMaxSize : aSize.height % aMaxSize);
+}
+
+AutoTextureLock::AutoTextureLock(IDXGIKeyedMutex* aMutex, HRESULT& aResult,
+                                 uint32_t aTimeout) {
+  mMutex = aMutex;
+  if (mMutex) {
+    mResult = mMutex->AcquireSync(0, aTimeout);
+    aResult = mResult;
+  } else {
+    aResult = E_INVALIDARG;
+  }
+}
+
+AutoTextureLock::~AutoTextureLock() {
+  if (mMutex && !FAILED(mResult) && mResult != WAIT_TIMEOUT &&
+      mResult != WAIT_ABANDONED) {
+    mMutex->ReleaseSync(0);
+  }
+}
+
+ID3D11ShaderResourceView* TextureSourceD3D11::GetShaderResourceView() {
+  MOZ_ASSERT(mTexture == GetD3D11Texture(),
+             "You need to override GetShaderResourceView if you're overriding "
+             "GetD3D11Texture!");
+
+  if (!mSRV && mTexture) {
+    RefPtr<ID3D11Device> device;
+    mTexture->GetDevice(getter_AddRefs(device));
+
+    // see comment in CompositingRenderTargetD3D11 constructor
+    CD3D11_SHADER_RESOURCE_VIEW_DESC srvDesc(D3D11_SRV_DIMENSION_TEXTURE2D,
+                                             mFormatOverride);
+    D3D11_SHADER_RESOURCE_VIEW_DESC* desc =
+        mFormatOverride == DXGI_FORMAT_UNKNOWN ? nullptr : &srvDesc;
+
+    HRESULT hr =
+        device->CreateShaderResourceView(mTexture, desc, getter_AddRefs(mSRV));
+    if (FAILED(hr)) {
+      gfxCriticalNote << "[D3D11] TextureSourceD3D11:GetShaderResourceView "
+                         "CreateSRV failure "
+                      << gfx::hexa(hr);
+      return nullptr;
+    }
+  }
+  return mSRV;
+}
+
+DataTextureSourceD3D11::DataTextureSourceD3D11(ID3D11Device* aDevice,
+                                               SurfaceFormat aFormat,
+                                               TextureFlags aFlags)
+    : mDevice(aDevice),
+      mFormat(aFormat),
+      mFlags(aFlags),
+      mCurrentTile(0),
+      mIsTiled(false),
+      mIterating(false),
+      mAllowTextureUploads(true) {}
+
+DataTextureSourceD3D11::DataTextureSourceD3D11(ID3D11Device* aDevice,
+                                               SurfaceFormat aFormat,
+                                               ID3D11Texture2D* aTexture)
+    : mDevice(aDevice),
+      mFormat(aFormat),
+      mFlags(TextureFlags::NO_FLAGS),
+      mCurrentTile(0),
+      mIsTiled(false),
+      mIterating(false),
+      mAllowTextureUploads(false) {
+  mTexture = aTexture;
+  D3D11_TEXTURE2D_DESC desc;
+  aTexture->GetDesc(&desc);
+
+  mSize = IntSize(desc.Width, desc.Height);
+}
+
+DataTextureSourceD3D11::DataTextureSourceD3D11(gfx::SurfaceFormat aFormat,
+                                               TextureSourceProvider* aProvider,
+                                               ID3D11Texture2D* aTexture)
+    : DataTextureSourceD3D11(aProvider->GetD3D11Device(), aFormat, aTexture) {}
+
+DataTextureSourceD3D11::DataTextureSourceD3D11(gfx::SurfaceFormat aFormat,
+                                               TextureSourceProvider* aProvider,
+                                               TextureFlags aFlags)
+    : DataTextureSourceD3D11(aProvider->GetD3D11Device(), aFormat, aFlags) {}
+
+DataTextureSourceD3D11::~DataTextureSourceD3D11() {}
+
+enum class SerializeWithMoz2D : bool { No, Yes };
+
+template <typename T>  // ID3D10Texture2D or ID3D11Texture2D
+static bool LockD3DTexture(
+    T* aTexture, SerializeWithMoz2D aSerialize = SerializeWithMoz2D::No) {
+  MOZ_ASSERT(aTexture);
+  RefPtr<IDXGIKeyedMutex> mutex;
+  aTexture->QueryInterface((IDXGIKeyedMutex**)getter_AddRefs(mutex));
+  // Textures created by the DXVA decoders don't have a mutex for
+  // synchronization
+  if (mutex) {
+    HRESULT hr;
+    if (aSerialize == SerializeWithMoz2D::Yes) {
+      AutoSerializeWithMoz2D serializeWithMoz2D(BackendType::DIRECT2D1_1);
+      hr = mutex->AcquireSync(0, 10000);
+    } else {
+      hr = mutex->AcquireSync(0, 10000);
+    }
+    if (hr == WAIT_TIMEOUT) {
+      RefPtr<ID3D11Device> device;
+      aTexture->GetDevice(getter_AddRefs(device));
+      if (!device) {
+        gfxCriticalNote << "GFX: D3D11 lock mutex timeout - no device returned";
+      } else if (device->GetDeviceRemovedReason() != S_OK) {
+        gfxCriticalNote << "GFX: D3D11 lock mutex timeout - device removed";
+      } else {
+        gfxDevCrash(LogReason::D3DLockTimeout)
+            << "D3D lock mutex timeout - device not removed";
+      }
+    } else if (hr == WAIT_ABANDONED) {
+      gfxCriticalNote << "GFX: D3D11 lock mutex abandoned";
+    }
+
+    if (FAILED(hr)) {
+      NS_WARNING("Failed to lock the texture");
+      return false;
+    }
+  }
+  return true;
+}
+
+template <typename T>
+static bool HasKeyedMutex(T* aTexture) {
+  MOZ_ASSERT(aTexture);
+  RefPtr<IDXGIKeyedMutex> mutex;
+  aTexture->QueryInterface((IDXGIKeyedMutex**)getter_AddRefs(mutex));
+  return !!mutex;
+}
+
+template <typename T>  // ID3D10Texture2D or ID3D11Texture2D
+static void UnlockD3DTexture(
+    T* aTexture, SerializeWithMoz2D aSerialize = SerializeWithMoz2D::No) {
+  MOZ_ASSERT(aTexture);
+  RefPtr<IDXGIKeyedMutex> mutex;
+  aTexture->QueryInterface((IDXGIKeyedMutex**)getter_AddRefs(mutex));
+  if (mutex) {
+    HRESULT hr;
+    if (aSerialize == SerializeWithMoz2D::Yes) {
+      AutoSerializeWithMoz2D serializeWithMoz2D(BackendType::DIRECT2D1_1);
+      hr = mutex->ReleaseSync(0);
+    } else {
+      hr = mutex->ReleaseSync(0);
+    }
+    if (FAILED(hr)) {
+      NS_WARNING("Failed to unlock the texture");
+    }
+  }
+}
+
+D3D11TextureData::D3D11TextureData(ID3D11Texture2D* aTexture,
+                                   uint32_t aArrayIndex, gfx::IntSize aSize,
+                                   gfx::SurfaceFormat aFormat,
+                                   TextureAllocationFlags aFlags)
+    : mSize(aSize),
+      mFormat(aFormat),
+      mNeedsClear(aFlags & ALLOC_CLEAR_BUFFER),
+      mHasSynchronization(HasKeyedMutex(aTexture)),
+      mTexture(aTexture),
+      mArrayIndex(aArrayIndex),
+      mAllocationFlags(aFlags) {
+  MOZ_ASSERT(aTexture);
+}
+
+static void DestroyDrawTarget(RefPtr<DrawTarget>& aDT,
+                              RefPtr<ID3D11Texture2D>& aTexture) {
+  // An Azure DrawTarget needs to be locked when it gets nullptr'ed as this is
+  // when it calls EndDraw. This EndDraw should not execute anything so it
+  // shouldn't -really- need the lock but the debug layer chokes on this.
+  LockD3DTexture(aTexture.get(), SerializeWithMoz2D::Yes);
+  aDT = nullptr;
+
+  // Do the serialization here, so we can hold it while destroying the texture.
+  AutoSerializeWithMoz2D serializeWithMoz2D(BackendType::DIRECT2D1_1);
+  UnlockD3DTexture(aTexture.get(), SerializeWithMoz2D::No);
+  aTexture = nullptr;
+}
+
+D3D11TextureData::~D3D11TextureData() {
+  if (mDrawTarget) {
+    DestroyDrawTarget(mDrawTarget, mTexture);
+  }
+
+  if (mGpuProcessTextureId.isSome()) {
+    auto* textureMap = GpuProcessD3D11TextureMap::Get();
+    if (textureMap) {
+      textureMap->Unregister(mGpuProcessTextureId.ref());
+    } else {
+      gfxCriticalNoteOnce << "GpuProcessD3D11TextureMap does not exist";
+    }
+  }
+}
+
+bool D3D11TextureData::Lock(OpenMode aMode) {
+  if (!LockD3DTexture(mTexture.get(), SerializeWithMoz2D::Yes)) {
+    return false;
+  }
+
+  if (NS_IsMainThread()) {
+    if (!PrepareDrawTargetInLock(aMode)) {
+      Unlock();
+      return false;
+    }
+  }
+
+  return true;
+}
+
+bool D3D11TextureData::PrepareDrawTargetInLock(OpenMode aMode) {
+  // Make sure that successful write-lock means we will have a DrawTarget to
+  // write into.
+  if (!mDrawTarget && (aMode & OpenMode::OPEN_WRITE || mNeedsClear)) {
+    mDrawTarget = BorrowDrawTarget();
+    if (!mDrawTarget) {
+      return false;
+    }
+  }
+
+  // Reset transform
+  mDrawTarget->SetTransform(Matrix());
+
+  if (mNeedsClear) {
+    mDrawTarget->ClearRect(Rect(0, 0, mSize.width, mSize.height));
+    mNeedsClear = false;
+  }
+
+  return true;
+}
+
+void D3D11TextureData::Unlock() {
+  UnlockD3DTexture(mTexture.get(), SerializeWithMoz2D::Yes);
+}
+
+void D3D11TextureData::FillInfo(TextureData::Info& aInfo) const {
+  aInfo.size = mSize;
+  aInfo.format = mFormat;
+  aInfo.supportsMoz2D = true;
+  aInfo.hasSynchronization = mHasSynchronization;
+}
+
+void D3D11TextureData::SyncWithObject(RefPtr<SyncObjectClient> aSyncObject) {
+  if (!aSyncObject || mHasSynchronization) {
+    // When we have per texture synchronization we sync using the keyed mutex.
+    return;
+  }
+
+  MOZ_ASSERT(aSyncObject->GetSyncType() == SyncObjectClient::SyncType::D3D11);
+  SyncObjectD3D11Client* sync =
+      static_cast<SyncObjectD3D11Client*>(aSyncObject.get());
+  sync->RegisterTexture(mTexture);
+}
+
+bool D3D11TextureData::SerializeSpecific(
+    SurfaceDescriptorD3D10* const aOutDesc) {
+  RefPtr<IDXGIResource> resource;
+  GetDXGIResource((IDXGIResource**)getter_AddRefs(resource));
+  if (!resource) {
+    return false;
+  }
+  HANDLE sharedHandle = 0;
+  if (mGpuProcessTextureId.isNothing()) {
+    HRESULT hr = resource->GetSharedHandle(&sharedHandle);
+    if (FAILED(hr)) {
+      LOGD3D11("Error getting shared handle for texture.");
+      return false;
+    }
+  }
+  *aOutDesc = SurfaceDescriptorD3D10((WindowsHandle)sharedHandle,
+                                     mGpuProcessTextureId, mArrayIndex, mFormat,
+                                     mSize, mColorSpace, mColorRange);
+  return true;
+}
+
+bool D3D11TextureData::Serialize(SurfaceDescriptor& aOutDescriptor) {
+  SurfaceDescriptorD3D10 desc;
+  if (!SerializeSpecific(&desc)) return false;
+
+  aOutDescriptor = std::move(desc);
+  return true;
+}
+
+void D3D11TextureData::GetSubDescriptor(
+    RemoteDecoderVideoSubDescriptor* const aOutDesc) {
+  SurfaceDescriptorD3D10 ret;
+  if (!SerializeSpecific(&ret)) return;
+
+  *aOutDesc = std::move(ret);
+}
+
+/* static */
+already_AddRefed<TextureClient> D3D11TextureData::CreateTextureClient(
+    ID3D11Texture2D* aTexture, uint32_t aIndex, gfx::IntSize aSize,
+    gfx::SurfaceFormat aFormat, gfx::ColorSpace2 aColorSpace,
+    gfx::ColorRange aColorRange, KnowsCompositor* aKnowsCompositor,
+    RefPtr<IMFSampleUsageInfo> aUsageInfo) {
+  D3D11TextureData* data = new D3D11TextureData(
+      aTexture, aIndex, aSize, aFormat,
+      TextureAllocationFlags::ALLOC_MANUAL_SYNCHRONIZATION);
+  data->mColorSpace = aColorSpace;
+  data->SetColorRange(aColorRange);
+
+  RefPtr<TextureClient> textureClient = MakeAndAddRef<TextureClient>(
+      data, TextureFlags::NO_FLAGS, aKnowsCompositor->GetTextureForwarder());
+  const auto textureId = GpuProcessD3D11TextureMap::GetNextTextureId();
+  data->SetGpuProcessTextureId(textureId);
+
+  // Register ID3D11Texture2D to GpuProcessD3D11TextureMap
+  auto* textureMap = GpuProcessD3D11TextureMap::Get();
+  if (textureMap) {
+    textureMap->Register(textureId, aTexture, aIndex, aSize, aUsageInfo);
+  } else {
+    gfxCriticalNoteOnce << "GpuProcessD3D11TextureMap does not exist";
+  }
+
+  return textureClient.forget();
+}
+
+D3D11TextureData* D3D11TextureData::Create(IntSize aSize, SurfaceFormat aFormat,
+                                           TextureAllocationFlags aFlags,
+                                           ID3D11Device* aDevice) {
+  return Create(aSize, aFormat, nullptr, aFlags, aDevice);
+}
+
+D3D11TextureData* D3D11TextureData::Create(SourceSurface* aSurface,
+                                           TextureAllocationFlags aFlags,
+                                           ID3D11Device* aDevice) {
+  return Create(aSurface->GetSize(), aSurface->GetFormat(), aSurface, aFlags,
+                aDevice);
+}
+
+D3D11TextureData* D3D11TextureData::Create(IntSize aSize, SurfaceFormat aFormat,
+                                           SourceSurface* aSurface,
+                                           TextureAllocationFlags aFlags,
+                                           ID3D11Device* aDevice) {
+  if (aFormat == SurfaceFormat::A8) {
+    // Currently we don't support A8 surfaces. Fallback.
+    return nullptr;
+  }
+
+  // Just grab any device. We never use the immediate context, so the devices
+  // are fine to use from any thread.
+  RefPtr<ID3D11Device> device = aDevice;
+  if (!device) {
+    device = DeviceManagerDx::Get()->GetContentDevice();
+    if (!device) {
+      return nullptr;
+    }
+  }
+
+  CD3D11_TEXTURE2D_DESC newDesc(
+      DXGI_FORMAT_B8G8R8A8_UNORM, aSize.width, aSize.height, 1, 1,
+      D3D11_BIND_RENDER_TARGET | D3D11_BIND_SHADER_RESOURCE);
+
+  if (aFormat == SurfaceFormat::NV12) {
+    newDesc.Format = DXGI_FORMAT_NV12;
+  } else if (aFormat == SurfaceFormat::P010) {
+    newDesc.Format = DXGI_FORMAT_P010;
+  } else if (aFormat == SurfaceFormat::P016) {
+    newDesc.Format = DXGI_FORMAT_P016;
+  }
+
+  newDesc.MiscFlags = D3D11_RESOURCE_MISC_SHARED;
+  if (!NS_IsMainThread()) {
+    // On the main thread we use the syncobject to handle synchronization.
+    if (!(aFlags & ALLOC_MANUAL_SYNCHRONIZATION)) {
+      newDesc.MiscFlags = D3D11_RESOURCE_MISC_SHARED_KEYEDMUTEX;
+    }
+  }
+
+  if (aSurface && newDesc.MiscFlags == D3D11_RESOURCE_MISC_SHARED_KEYEDMUTEX &&
+      !DeviceManagerDx::Get()->CanInitializeKeyedMutexTextures()) {
+    return nullptr;
+  }
+
+  D3D11_SUBRESOURCE_DATA uploadData;
+  D3D11_SUBRESOURCE_DATA* uploadDataPtr = nullptr;
+  RefPtr<DataSourceSurface> srcSurf;
+  DataSourceSurface::MappedSurface sourceMap;
+
+  if (aSurface) {
+    srcSurf = aSurface->GetDataSurface();
+
+    if (!srcSurf) {
+      gfxCriticalError()
+          << "Failed to GetDataSurface in D3D11TextureData::Create";
+      return nullptr;
+    }
+
+    if (!srcSurf->Map(DataSourceSurface::READ, &sourceMap)) {
+      gfxCriticalError()
+          << "Failed to map source surface for D3D11TextureData::Create";
+      return nullptr;
+    }
+  }
+
+  if (srcSurf && !DeviceManagerDx::Get()->HasCrashyInitData()) {
+    uploadData.pSysMem = sourceMap.mData;
+    uploadData.SysMemPitch = sourceMap.mStride;
+    uploadData.SysMemSlicePitch = 0;  // unused
+
+    uploadDataPtr = &uploadData;
+  }
+
+  // See bug 1397040
+  RefPtr<ID3D10Multithread> mt;
+  device->QueryInterface((ID3D10Multithread**)getter_AddRefs(mt));
+
+  RefPtr<ID3D11Texture2D> texture11;
+
+  {
+    AutoSerializeWithMoz2D serializeWithMoz2D(BackendType::DIRECT2D1_1);
+    D3D11MTAutoEnter lock(mt.forget());
+
+    HRESULT hr = device->CreateTexture2D(&newDesc, uploadDataPtr,
+                                         getter_AddRefs(texture11));
+
+    if (FAILED(hr) || !texture11) {
+      gfxCriticalNote << "[D3D11] 2 CreateTexture2D failure Size: " << aSize
+                      << "texture11: " << texture11
+                      << " Code: " << gfx::hexa(hr);
+      return nullptr;
+    }
+
+    if (srcSurf && DeviceManagerDx::Get()->HasCrashyInitData()) {
+      D3D11_BOX box;
+      box.front = box.top = box.left = 0;
+      box.back = 1;
+      box.right = aSize.width;
+      box.bottom = aSize.height;
+      RefPtr<ID3D11DeviceContext> ctx;
+      device->GetImmediateContext(getter_AddRefs(ctx));
+      ctx->UpdateSubresource(texture11, 0, &box, sourceMap.mData,
+                             sourceMap.mStride, 0);
+    }
+  }
+
+  if (srcSurf) {
+    srcSurf->Unmap();
+  }
+
+  // If we created the texture with a keyed mutex, then we expect all operations
+  // on it to be synchronized using it. If we did an initial upload using
+  // aSurface then bizarely this isn't covered, so we insert a manual
+  // lock/unlock pair to force this.
+  if (aSurface && newDesc.MiscFlags == D3D11_RESOURCE_MISC_SHARED_KEYEDMUTEX) {
+    if (!LockD3DTexture(texture11.get(), SerializeWithMoz2D::Yes)) {
+      return nullptr;
+    }
+    UnlockD3DTexture(texture11.get(), SerializeWithMoz2D::Yes);
+  }
+  texture11->SetPrivateDataInterface(
+      sD3D11TextureUsage,
+      new TextureMemoryMeasurer(newDesc.Width * newDesc.Height * 4));
+  return new D3D11TextureData(texture11, 0, aSize, aFormat, aFlags);
+}
+
+void D3D11TextureData::Deallocate(LayersIPCChannel* aAllocator) {
+  mDrawTarget = nullptr;
+  mTexture = nullptr;
+}
+
+TextureData* D3D11TextureData::CreateSimilar(
+    LayersIPCChannel* aAllocator, LayersBackend aLayersBackend,
+    TextureFlags aFlags, TextureAllocationFlags aAllocFlags) const {
+  return D3D11TextureData::Create(mSize, mFormat, aAllocFlags);
+}
+
+void D3D11TextureData::GetDXGIResource(IDXGIResource** aOutResource) {
+  mTexture->QueryInterface(aOutResource);
+}
+
+TextureFlags D3D11TextureData::GetTextureFlags() const {
+  // With WebRender, resource open happens asynchronously on RenderThread.
+  // During opening the resource on host side, TextureClient needs to be alive.
+  // With WAIT_HOST_USAGE_END, keep TextureClient alive during host side usage.
+  return TextureFlags::WAIT_HOST_USAGE_END;
+}
+
+DXGIYCbCrTextureData* DXGIYCbCrTextureData::Create(
+    IDirect3DTexture9* aTextureY, IDirect3DTexture9* aTextureCb,
+    IDirect3DTexture9* aTextureCr, HANDLE aHandleY, HANDLE aHandleCb,
+    HANDLE aHandleCr, const gfx::IntSize& aSize, const gfx::IntSize& aSizeY,
+    const gfx::IntSize& aSizeCbCr, gfx::ColorDepth aColorDepth,
+    YUVColorSpace aYUVColorSpace, gfx::ColorRange aColorRange) {
+  if (!aHandleY || !aHandleCb || !aHandleCr || !aTextureY || !aTextureCb ||
+      !aTextureCr) {
+    return nullptr;
+  }
+
+  DXGIYCbCrTextureData* texture = new DXGIYCbCrTextureData();
+  texture->mHandles[0] = aHandleY;
+  texture->mHandles[1] = aHandleCb;
+  texture->mHandles[2] = aHandleCr;
+  texture->mD3D9Textures[0] = aTextureY;
+  texture->mD3D9Textures[1] = aTextureCb;
+  texture->mD3D9Textures[2] = aTextureCr;
+  texture->mSize = aSize;
+  texture->mSizeY = aSizeY;
+  texture->mSizeCbCr = aSizeCbCr;
+  texture->mColorDepth = aColorDepth;
+  texture->mYUVColorSpace = aYUVColorSpace;
+  texture->mColorRange = aColorRange;
+
+  return texture;
+}
+
+DXGIYCbCrTextureData* DXGIYCbCrTextureData::Create(
+    ID3D11Texture2D* aTextureY, ID3D11Texture2D* aTextureCb,
+    ID3D11Texture2D* aTextureCr, const gfx::IntSize& aSize,
+    const gfx::IntSize& aSizeY, const gfx::IntSize& aSizeCbCr,
+    gfx::ColorDepth aColorDepth, YUVColorSpace aYUVColorSpace,
+    gfx::ColorRange aColorRange) {
+  if (!aTextureY || !aTextureCb || !aTextureCr) {
+    return nullptr;
+  }
+
+  aTextureY->SetPrivateDataInterface(
+      sD3D11TextureUsage,
+      new TextureMemoryMeasurer(aSizeY.width * aSizeY.height));
+  aTextureCb->SetPrivateDataInterface(
+      sD3D11TextureUsage,
+      new TextureMemoryMeasurer(aSizeCbCr.width * aSizeCbCr.height));
+  aTextureCr->SetPrivateDataInterface(
+      sD3D11TextureUsage,
+      new TextureMemoryMeasurer(aSizeCbCr.width * aSizeCbCr.height));
+
+  RefPtr<IDXGIResource> resource;
+
+  aTextureY->QueryInterface((IDXGIResource**)getter_AddRefs(resource));
+
+  HANDLE handleY;
+  HRESULT hr = resource->GetSharedHandle(&handleY);
+  if (FAILED(hr)) {
+    return nullptr;
+  }
+
+  aTextureCb->QueryInterface((IDXGIResource**)getter_AddRefs(resource));
+
+  HANDLE handleCb;
+  hr = resource->GetSharedHandle(&handleCb);
+  if (FAILED(hr)) {
+    return nullptr;
+  }
+
+  aTextureCr->QueryInterface((IDXGIResource**)getter_AddRefs(resource));
+  HANDLE handleCr;
+  hr = resource->GetSharedHandle(&handleCr);
+  if (FAILED(hr)) {
+    return nullptr;
+  }
+
+  DXGIYCbCrTextureData* texture = new DXGIYCbCrTextureData();
+  texture->mHandles[0] = handleY;
+  texture->mHandles[1] = handleCb;
+  texture->mHandles[2] = handleCr;
+  texture->mD3D11Textures[0] = aTextureY;
+  texture->mD3D11Textures[1] = aTextureCb;
+  texture->mD3D11Textures[2] = aTextureCr;
+  texture->mSize = aSize;
+  texture->mSizeY = aSizeY;
+  texture->mSizeCbCr = aSizeCbCr;
+  texture->mColorDepth = aColorDepth;
+  texture->mYUVColorSpace = aYUVColorSpace;
+  texture->mColorRange = aColorRange;
+
+  return texture;
+}
+
+void DXGIYCbCrTextureData::FillInfo(TextureData::Info& aInfo) const {
+  aInfo.size = mSize;
+  aInfo.format = gfx::SurfaceFormat::YUV;
+  aInfo.supportsMoz2D = false;
+  aInfo.hasSynchronization = false;
+}
+
+void DXGIYCbCrTextureData::SerializeSpecific(
+    SurfaceDescriptorDXGIYCbCr* const aOutDesc) {
+  *aOutDesc = SurfaceDescriptorDXGIYCbCr(
+      (WindowsHandle)mHandles[0], (WindowsHandle)mHandles[1],
+      (WindowsHandle)mHandles[2], mSize, mSizeY, mSizeCbCr, mColorDepth,
+      mYUVColorSpace, mColorRange);
+}
+
+bool DXGIYCbCrTextureData::Serialize(SurfaceDescriptor& aOutDescriptor) {
+  SurfaceDescriptorDXGIYCbCr desc;
+  SerializeSpecific(&desc);
+
+  aOutDescriptor = std::move(desc);
+  return true;
+}
+
+void DXGIYCbCrTextureData::GetSubDescriptor(
+    RemoteDecoderVideoSubDescriptor* const aOutDesc) {
+  SurfaceDescriptorDXGIYCbCr desc;
+  SerializeSpecific(&desc);
+
+  *aOutDesc = std::move(desc);
+}
+
+void DXGIYCbCrTextureData::Deallocate(LayersIPCChannel*) {
+  mD3D9Textures[0] = nullptr;
+  mD3D9Textures[1] = nullptr;
+  mD3D9Textures[2] = nullptr;
+  mD3D11Textures[0] = nullptr;
+  mD3D11Textures[1] = nullptr;
+  mD3D11Textures[2] = nullptr;
+}
+
+TextureFlags DXGIYCbCrTextureData::GetTextureFlags() const {
+  // With WebRender, resource open happens asynchronously on RenderThread.
+  // During opening the resource on host side, TextureClient needs to be alive.
+  // With WAIT_HOST_USAGE_END, keep TextureClient alive during host side usage.
+  return TextureFlags::WAIT_HOST_USAGE_END;
+}
+
+already_AddRefed<TextureHost> CreateTextureHostD3D11(
+    const SurfaceDescriptor& aDesc, ISurfaceAllocator* aDeallocator,
+    LayersBackend aBackend, TextureFlags aFlags) {
+  RefPtr<TextureHost> result;
+  switch (aDesc.type()) {
+    case SurfaceDescriptor::TSurfaceDescriptorD3D10: {
+      result =
+          new DXGITextureHostD3D11(aFlags, aDesc.get_SurfaceDescriptorD3D10());
+      break;
+    }
+    case SurfaceDescriptor::TSurfaceDescriptorDXGIYCbCr: {
+      result = new DXGIYCbCrTextureHostD3D11(
+          aFlags, aDesc.get_SurfaceDescriptorDXGIYCbCr());
+      break;
+    }
+    default: {
+      MOZ_ASSERT_UNREACHABLE("Unsupported SurfaceDescriptor type");
+    }
+  }
+  return result.forget();
+}
+
+already_AddRefed<DrawTarget> D3D11TextureData::BorrowDrawTarget() {
+  MOZ_ASSERT(NS_IsMainThread() || NS_IsInCanvasThreadOrWorker());
+
+  if (!mDrawTarget && mTexture) {
+    // This may return a null DrawTarget
+    mDrawTarget = Factory::CreateDrawTargetForD3D11Texture(mTexture, mFormat);
+    if (!mDrawTarget) {
+      gfxCriticalNote << "Could not borrow DrawTarget (D3D11) " << (int)mFormat;
+    }
+  }
+
+  RefPtr<DrawTarget> result = mDrawTarget;
+  return result.forget();
+}
+
+bool D3D11TextureData::UpdateFromSurface(gfx::SourceSurface* aSurface) {
+  // Supporting texture updates after creation requires an ID3D11DeviceContext
+  // and those aren't threadsafe. We'd need to either lock, or have a device for
+  // whatever thread this runs on and we're trying to avoid extra devices (bug
+  // 1284672).
+  MOZ_ASSERT(false,
+             "UpdateFromSurface not supported for D3D11! Use CreateFromSurface "
+             "instead");
+  return false;
+}
+
+DXGITextureHostD3D11::DXGITextureHostD3D11(
+    TextureFlags aFlags, const SurfaceDescriptorD3D10& aDescriptor)
+    : TextureHost(TextureHostType::DXGI, aFlags),
+      mGpuProcessTextureId(aDescriptor.gpuProcessTextureId()),
+      mArrayIndex(aDescriptor.arrayIndex()),
+      mSize(aDescriptor.size()),
+      mHandle(aDescriptor.handle()),
+      mFormat(aDescriptor.format()),
+      mColorSpace(aDescriptor.colorSpace()),
+      mColorRange(aDescriptor.colorRange()),
+      mIsLocked(false) {}
+
+bool DXGITextureHostD3D11::EnsureTexture() {
+  if (mGpuProcessTextureId.isSome()) {
+    return false;
+  }
+
+  RefPtr<ID3D11Device> device;
+  if (mTexture) {
+    mTexture->GetDevice(getter_AddRefs(device));
+    if (device == DeviceManagerDx::Get()->GetCompositorDevice()) {
+      NS_WARNING("Incompatible texture.");
+      return true;
+    }
+    mTexture = nullptr;
+  }
+
+  device = GetDevice();
+  if (!device || device != DeviceManagerDx::Get()->GetCompositorDevice()) {
+    NS_WARNING("No device or incompatible device.");
+    return false;
+  }
+
+  HRESULT hr = device->OpenSharedResource(
+      (HANDLE)mHandle, __uuidof(ID3D11Texture2D),
+      (void**)(ID3D11Texture2D**)getter_AddRefs(mTexture));
+  if (FAILED(hr)) {
+    MOZ_ASSERT(false, "Failed to open shared texture");
+    return false;
+  }
+
+  D3D11_TEXTURE2D_DESC desc;
+  mTexture->GetDesc(&desc);
+  mSize = IntSize(desc.Width, desc.Height);
+  return true;
+}
+
+RefPtr<ID3D11Device> DXGITextureHostD3D11::GetDevice() {
+  if (mFlags & TextureFlags::INVALID_COMPOSITOR) {
+    return nullptr;
+  }
+
+  return mDevice;
+}
+
+bool DXGITextureHostD3D11::LockWithoutCompositor() {
+  if (!mDevice) {
+    mDevice = DeviceManagerDx::Get()->GetCompositorDevice();
+  }
+  return LockInternal();
+}
+
+void DXGITextureHostD3D11::UnlockWithoutCompositor() { UnlockInternal(); }
+
+bool DXGITextureHostD3D11::LockInternal() {
+  if (!GetDevice()) {
+    NS_WARNING("trying to lock a TextureHost without a D3D device");
+    return false;
+  }
+
+  if (!EnsureTextureSource()) {
+    return false;
+  }
+
+  mIsLocked = LockD3DTexture(mTextureSource->GetD3D11Texture());
+
+  return mIsLocked;
+}
+
+already_AddRefed<gfx::DataSourceSurface> DXGITextureHostD3D11::GetAsSurface() {
+  switch (GetFormat()) {
+    case gfx::SurfaceFormat::R8G8B8X8:
+    case gfx::SurfaceFormat::R8G8B8A8:
+    case gfx::SurfaceFormat::B8G8R8A8:
+    case gfx::SurfaceFormat::B8G8R8X8:
+      break;
+    default: {
+      MOZ_ASSERT_UNREACHABLE("DXGITextureHostD3D11: unsupported format!");
+      return nullptr;
+    }
+  }
+
+  AutoLockTextureHostWithoutCompositor autoLock(this);
+  if (autoLock.Failed()) {
+    NS_WARNING("Failed to lock the D3DTexture");
+    return nullptr;
+  }
+
+  RefPtr<ID3D11Device> device;
+  mTexture->GetDevice(getter_AddRefs(device));
+
+  D3D11_TEXTURE2D_DESC textureDesc = {0};
+  mTexture->GetDesc(&textureDesc);
+
+  RefPtr<ID3D11DeviceContext> context;
+  device->GetImmediateContext(getter_AddRefs(context));
+
+  textureDesc.CPUAccessFlags = D3D11_CPU_ACCESS_READ;
+  textureDesc.Usage = D3D11_USAGE_STAGING;
+  textureDesc.BindFlags = 0;
+  textureDesc.MiscFlags = 0;
+  textureDesc.MipLevels = 1;
+  RefPtr<ID3D11Texture2D> cpuTexture;
+  HRESULT hr = device->CreateTexture2D(&textureDesc, nullptr,
+                                       getter_AddRefs(cpuTexture));
+  if (FAILED(hr)) {
+    return nullptr;
+  }
+
+  context->CopyResource(cpuTexture, mTexture);
+
+  D3D11_MAPPED_SUBRESOURCE mappedSubresource;
+  hr = context->Map(cpuTexture, 0, D3D11_MAP_READ, 0, &mappedSubresource);
+  if (FAILED(hr)) {
+    return nullptr;
+  }
+
+  RefPtr<DataSourceSurface> surf = gfx::CreateDataSourceSurfaceFromData(
+      IntSize(textureDesc.Width, textureDesc.Height), GetFormat(),
+      (uint8_t*)mappedSubresource.pData, mappedSubresource.RowPitch);
+  context->Unmap(cpuTexture, 0);
+  return surf.forget();
+}
+
+bool DXGITextureHostD3D11::EnsureTextureSource() {
+  if (mTextureSource) {
+    return true;
+  }
+
+  if (!EnsureTexture()) {
+    DeviceManagerDx::Get()->ForceDeviceReset(
+        ForcedDeviceResetReason::OPENSHAREDHANDLE);
+    return false;
+  }
+
+  mTextureSource = new DataTextureSourceD3D11(mDevice, mFormat, mTexture);
+  return true;
+}
+
+void DXGITextureHostD3D11::UnlockInternal() {
+  UnlockD3DTexture(mTextureSource->GetD3D11Texture());
+}
+
+void DXGITextureHostD3D11::CreateRenderTexture(
+    const wr::ExternalImageId& aExternalImageId) {
+  RefPtr<wr::RenderTextureHost> texture =
+      new wr::RenderDXGITextureHost(mHandle, mGpuProcessTextureId, mArrayIndex,
+                                    mFormat, mColorSpace, mColorRange, mSize);
+  wr::RenderThread::Get()->RegisterExternalImage(aExternalImageId,
+                                                 texture.forget());
+}
+
+uint32_t DXGITextureHostD3D11::NumSubTextures() {
+  switch (GetFormat()) {
+    case gfx::SurfaceFormat::R8G8B8X8:
+    case gfx::SurfaceFormat::R8G8B8A8:
+    case gfx::SurfaceFormat::B8G8R8A8:
+    case gfx::SurfaceFormat::B8G8R8X8: {
+      return 1;
+    }
+    case gfx::SurfaceFormat::NV12:
+    case gfx::SurfaceFormat::P010:
+    case gfx::SurfaceFormat::P016: {
+      return 2;
+    }
+    default: {
+      MOZ_ASSERT_UNREACHABLE("unexpected format");
+      return 1;
+    }
+  }
+}
+
+void DXGITextureHostD3D11::PushResourceUpdates(
+    wr::TransactionBuilder& aResources, ResourceUpdateOp aOp,
+    const Range<wr::ImageKey>& aImageKeys, const wr::ExternalImageId& aExtID) {
+  if (!gfx::gfxVars::UseWebRenderANGLE()) {
+    MOZ_ASSERT_UNREACHABLE("unexpected to be called without ANGLE");
+    return;
+  }
+
+  MOZ_ASSERT(mHandle || mGpuProcessTextureId.isSome());
+  auto method = aOp == TextureHost::ADD_IMAGE
+                    ? &wr::TransactionBuilder::AddExternalImage
+                    : &wr::TransactionBuilder::UpdateExternalImage;
+  switch (mFormat) {
+    case gfx::SurfaceFormat::R8G8B8X8:
+    case gfx::SurfaceFormat::R8G8B8A8:
+    case gfx::SurfaceFormat::B8G8R8A8:
+    case gfx::SurfaceFormat::B8G8R8X8: {
+      MOZ_ASSERT(aImageKeys.length() == 1);
+
+      wr::ImageDescriptor descriptor(mSize, GetFormat());
+      // Prefer TextureExternal unless the backend requires TextureRect.
+      TextureHost::NativeTexturePolicy policy =
+          TextureHost::BackendNativeTexturePolicy(aResources.GetBackendType(),
+                                                  mSize);
+      auto imageType = policy == TextureHost::NativeTexturePolicy::REQUIRE
+                           ? wr::ExternalImageType::TextureHandle(
+                                 wr::ImageBufferKind::TextureRect)
+                           : wr::ExternalImageType::TextureHandle(
+                                 wr::ImageBufferKind::TextureExternal);
+      (aResources.*method)(aImageKeys[0], descriptor, aExtID, imageType, 0);
+      break;
+    }
+    case gfx::SurfaceFormat::P010:
+    case gfx::SurfaceFormat::P016:
+    case gfx::SurfaceFormat::NV12: {
+      MOZ_ASSERT(aImageKeys.length() == 2);
+      MOZ_ASSERT(mSize.width % 2 == 0);
+      MOZ_ASSERT(mSize.height % 2 == 0);
+
+      wr::ImageDescriptor descriptor0(mSize, mFormat == gfx::SurfaceFormat::NV12
+                                                 ? gfx::SurfaceFormat::A8
+                                                 : gfx::SurfaceFormat::A16);
+      wr::ImageDescriptor descriptor1(mSize / 2,
+                                      mFormat == gfx::SurfaceFormat::NV12
+                                          ? gfx::SurfaceFormat::R8G8
+                                          : gfx::SurfaceFormat::R16G16);
+      // Prefer TextureExternal unless the backend requires TextureRect.
+      TextureHost::NativeTexturePolicy policy =
+          TextureHost::BackendNativeTexturePolicy(aResources.GetBackendType(),
+                                                  mSize);
+      auto imageType = policy == TextureHost::NativeTexturePolicy::REQUIRE
+                           ? wr::ExternalImageType::TextureHandle(
+                                 wr::ImageBufferKind::TextureRect)
+                           : wr::ExternalImageType::TextureHandle(
+                                 wr::ImageBufferKind::TextureExternal);
+      (aResources.*method)(aImageKeys[0], descriptor0, aExtID, imageType, 0);
+      (aResources.*method)(aImageKeys[1], descriptor1, aExtID, imageType, 1);
+      break;
+    }
+    default: {
+      MOZ_ASSERT_UNREACHABLE("unexpected to be called");
+    }
+  }
+}
+
+void DXGITextureHostD3D11::PushDisplayItems(
+    wr::DisplayListBuilder& aBuilder, const wr::LayoutRect& aBounds,
+    const wr::LayoutRect& aClip, wr::ImageRendering aFilter,
+    const Range<wr::ImageKey>& aImageKeys, PushDisplayItemFlagSet aFlags) {
+  bool preferCompositorSurface =
+      aFlags.contains(PushDisplayItemFlag::PREFER_COMPOSITOR_SURFACE);
+  if (!gfx::gfxVars::UseWebRenderANGLE()) {
+    MOZ_ASSERT_UNREACHABLE("unexpected to be called without ANGLE");
+    return;
+  }
+
+  switch (GetFormat()) {
+    case gfx::SurfaceFormat::R8G8B8X8:
+    case gfx::SurfaceFormat::R8G8B8A8:
+    case gfx::SurfaceFormat::B8G8R8A8:
+    case gfx::SurfaceFormat::B8G8R8X8: {
+      MOZ_ASSERT(aImageKeys.length() == 1);
+      aBuilder.PushImage(
+          aBounds, aClip, true, false, aFilter, aImageKeys[0],
+          !(mFlags & TextureFlags::NON_PREMULTIPLIED),
+          wr::ColorF{1.0f, 1.0f, 1.0f, 1.0f}, preferCompositorSurface,
+          SupportsExternalCompositing(aBuilder.GetBackendType()));
+      break;
+    }
+    case gfx::SurfaceFormat::P010:
+    case gfx::SurfaceFormat::P016:
+    case gfx::SurfaceFormat::NV12: {
+      // DXGI_FORMAT_P010 stores its 10 bit value in the most significant bits
+      // of each 16 bit word with the unused lower bits cleared to zero so that
+      // it may be handled as if it was DXGI_FORMAT_P016. This is approximately
+      // perceptually correct. However, due to rounding error, the precise
+      // quantized value after sampling may be off by 1.
+      MOZ_ASSERT(aImageKeys.length() == 2);
+      aBuilder.PushNV12Image(
+          aBounds, aClip, true, aImageKeys[0], aImageKeys[1],
+          GetFormat() == gfx::SurfaceFormat::NV12 ? wr::ColorDepth::Color8
+                                                  : wr::ColorDepth::Color16,
+          wr::ToWrYuvColorSpace(ToYUVColorSpace(mColorSpace)),
+          wr::ToWrColorRange(mColorRange), aFilter, preferCompositorSurface,
+          SupportsExternalCompositing(aBuilder.GetBackendType()));
+      break;
+    }
+    default: {
+      MOZ_ASSERT_UNREACHABLE("unexpected to be called");
+    }
+  }
+}
+
+bool DXGITextureHostD3D11::SupportsExternalCompositing(
+    WebRenderBackend aBackend) {
+  if (aBackend == WebRenderBackend::SOFTWARE) {
+    return true;
+  }
+  // XXX Add P010 and P016 support.
+  if (GetFormat() == gfx::SurfaceFormat::NV12 &&
+      gfx::gfxVars::UseWebRenderDCompVideoOverlayWin()) {
+    return true;
+  }
+  return false;
+}
+
+DXGIYCbCrTextureHostD3D11::DXGIYCbCrTextureHostD3D11(
+    TextureFlags aFlags, const SurfaceDescriptorDXGIYCbCr& aDescriptor)
+    : TextureHost(TextureHostType::DXGIYCbCr, aFlags),
+      mSize(aDescriptor.size()),
+      mSizeY(aDescriptor.sizeY()),
+      mSizeCbCr(aDescriptor.sizeCbCr()),
+      mIsLocked(false),
+      mColorDepth(aDescriptor.colorDepth()),
+      mYUVColorSpace(aDescriptor.yUVColorSpace()),
+      mColorRange(aDescriptor.colorRange()) {
+  mHandles[0] = aDescriptor.handleY();
+  mHandles[1] = aDescriptor.handleCb();
+  mHandles[2] = aDescriptor.handleCr();
+}
+
+bool DXGIYCbCrTextureHostD3D11::EnsureTexture() {
+  RefPtr<ID3D11Device> device;
+  if (mTextures[0]) {
+    mTextures[0]->GetDevice(getter_AddRefs(device));
+    if (device == DeviceManagerDx::Get()->GetCompositorDevice()) {
+      NS_WARNING("Incompatible texture.");
+      return true;
+    }
+    mTextures[0] = nullptr;
+    mTextures[1] = nullptr;
+    mTextures[2] = nullptr;
+  }
+
+  if (!GetDevice() ||
+      GetDevice() != DeviceManagerDx::Get()->GetCompositorDevice()) {
+    NS_WARNING("No device or incompatible device.");
+    return false;
+  }
+
+  device = GetDevice();
+  RefPtr<ID3D11Texture2D> textures[3];
+
+  HRESULT hr = device->OpenSharedResource(
+      (HANDLE)mHandles[0], __uuidof(ID3D11Texture2D),
+      (void**)(ID3D11Texture2D**)getter_AddRefs(textures[0]));
+  if (FAILED(hr)) {
+    NS_WARNING("Failed to open shared texture for Y Plane");
+    return false;
+  }
+
+  hr = device->OpenSharedResource(
+      (HANDLE)mHandles[1], __uuidof(ID3D11Texture2D),
+      (void**)(ID3D11Texture2D**)getter_AddRefs(textures[1]));
+  if (FAILED(hr)) {
+    NS_WARNING("Failed to open shared texture for Cb Plane");
+    return false;
+  }
+
+  hr = device->OpenSharedResource(
+      (HANDLE)mHandles[2], __uuidof(ID3D11Texture2D),
+      (void**)(ID3D11Texture2D**)getter_AddRefs(textures[2]));
+  if (FAILED(hr)) {
+    NS_WARNING("Failed to open shared texture for Cr Plane");
+    return false;
+  }
+
+  mTextures[0] = textures[0].forget();
+  mTextures[1] = textures[1].forget();
+  mTextures[2] = textures[2].forget();
+
+  return true;
+}
+
+RefPtr<ID3D11Device> DXGIYCbCrTextureHostD3D11::GetDevice() { return nullptr; }
+
+bool DXGIYCbCrTextureHostD3D11::EnsureTextureSource() { return false; }
+
+void DXGIYCbCrTextureHostD3D11::CreateRenderTexture(
+    const wr::ExternalImageId& aExternalImageId) {
+  RefPtr<wr::RenderTextureHost> texture = new wr::RenderDXGIYCbCrTextureHost(
+      mHandles, mYUVColorSpace, mColorDepth, mColorRange, mSizeY, mSizeCbCr);
+
+  wr::RenderThread::Get()->RegisterExternalImage(aExternalImageId,
+                                                 texture.forget());
+}
+
+uint32_t DXGIYCbCrTextureHostD3D11::NumSubTextures() {
+  // ycbcr use 3 sub textures.
+  return 3;
+}
+
+void DXGIYCbCrTextureHostD3D11::PushResourceUpdates(
+    wr::TransactionBuilder& aResources, ResourceUpdateOp aOp,
+    const Range<wr::ImageKey>& aImageKeys, const wr::ExternalImageId& aExtID) {
+  if (!gfx::gfxVars::UseWebRenderANGLE()) {
+    MOZ_ASSERT_UNREACHABLE("unexpected to be called without ANGLE");
+    return;
+  }
+
+  MOZ_ASSERT(mHandles[0] && mHandles[1] && mHandles[2]);
+  MOZ_ASSERT(aImageKeys.length() == 3);
+  // Assume the chroma planes are rounded up if the luma plane is odd sized.
+  MOZ_ASSERT((mSizeCbCr.width == mSizeY.width ||
+              mSizeCbCr.width == (mSizeY.width + 1) >> 1) &&
+             (mSizeCbCr.height == mSizeY.height ||
+              mSizeCbCr.height == (mSizeY.height + 1) >> 1));
+
+  auto method = aOp == TextureHost::ADD_IMAGE
+                    ? &wr::TransactionBuilder::AddExternalImage
+                    : &wr::TransactionBuilder::UpdateExternalImage;
+
+  // Prefer TextureExternal unless the backend requires TextureRect.
+  // Use a size that is the maximum of the Y and CbCr sizes.
+  IntSize textureSize = std::max(mSizeY, mSizeCbCr);
+  TextureHost::NativeTexturePolicy policy =
+      TextureHost::BackendNativeTexturePolicy(aResources.GetBackendType(),
+                                              textureSize);
+  auto imageType = policy == TextureHost::NativeTexturePolicy::REQUIRE
+                       ? wr::ExternalImageType::TextureHandle(
+                             wr::ImageBufferKind::TextureRect)
+                       : wr::ExternalImageType::TextureHandle(
+                             wr::ImageBufferKind::TextureExternal);
+
+  // y
+  wr::ImageDescriptor descriptor0(mSizeY, gfx::SurfaceFormat::A8);
+  // cb and cr
+  wr::ImageDescriptor descriptor1(mSizeCbCr, gfx::SurfaceFormat::A8);
+  (aResources.*method)(aImageKeys[0], descriptor0, aExtID, imageType, 0);
+  (aResources.*method)(aImageKeys[1], descriptor1, aExtID, imageType, 1);
+  (aResources.*method)(aImageKeys[2], descriptor1, aExtID, imageType, 2);
+}
+
+void DXGIYCbCrTextureHostD3D11::PushDisplayItems(
+    wr::DisplayListBuilder& aBuilder, const wr::LayoutRect& aBounds,
+    const wr::LayoutRect& aClip, wr::ImageRendering aFilter,
+    const Range<wr::ImageKey>& aImageKeys, PushDisplayItemFlagSet aFlags) {
+  if (!gfx::gfxVars::UseWebRenderANGLE()) {
+    MOZ_ASSERT_UNREACHABLE("unexpected to be called without ANGLE");
+    return;
+  }
+
+  MOZ_ASSERT(aImageKeys.length() == 3);
+
+  aBuilder.PushYCbCrPlanarImage(
+      aBounds, aClip, true, aImageKeys[0], aImageKeys[1], aImageKeys[2],
+      wr::ToWrColorDepth(mColorDepth), wr::ToWrYuvColorSpace(mYUVColorSpace),
+      wr::ToWrColorRange(mColorRange), aFilter,
+      aFlags.contains(PushDisplayItemFlag::PREFER_COMPOSITOR_SURFACE),
+      SupportsExternalCompositing(aBuilder.GetBackendType()));
+}
+
+bool DXGIYCbCrTextureHostD3D11::SupportsExternalCompositing(
+    WebRenderBackend aBackend) {
+  return aBackend == WebRenderBackend::SOFTWARE;
+}
+
+bool DataTextureSourceD3D11::Update(DataSourceSurface* aSurface,
+                                    nsIntRegion* aDestRegion,
+                                    IntPoint* aSrcOffset,
+                                    IntPoint* aDstOffset) {
+  // Incremental update with a source offset is only used on Mac so it is not
+  // clear that we ever will need to support it for D3D.
+  MOZ_ASSERT(!aSrcOffset);
+  MOZ_RELEASE_ASSERT(!aDstOffset);
+  MOZ_ASSERT(aSurface);
+
+  MOZ_ASSERT(mAllowTextureUploads);
+  if (!mAllowTextureUploads) {
+    return false;
+  }
+
+  HRESULT hr;
+
+  if (!mDevice) {
+    return false;
+  }
+
+  uint32_t bpp = BytesPerPixel(aSurface->GetFormat());
+  DXGI_FORMAT dxgiFormat = SurfaceFormatToDXGIFormat(aSurface->GetFormat());
+
+  mSize = aSurface->GetSize();
+  mFormat = aSurface->GetFormat();
+
+  CD3D11_TEXTURE2D_DESC desc(dxgiFormat, mSize.width, mSize.height, 1, 1);
+
+  int32_t maxSize = GetMaxTextureSizeFromDevice(mDevice);
+  if ((mSize.width <= maxSize && mSize.height <= maxSize) ||
+      (mFlags & TextureFlags::DISALLOW_BIGIMAGE)) {
+    if (mTexture) {
+      D3D11_TEXTURE2D_DESC currentDesc;
+      mTexture->GetDesc(&currentDesc);
+
+      // Make sure there's no size mismatch, if there is, recreate.
+      if (static_cast<int32_t>(currentDesc.Width) != mSize.width ||
+          static_cast<int32_t>(currentDesc.Height) != mSize.height ||
+          currentDesc.Format != dxgiFormat) {
+        mTexture = nullptr;
+        // Make sure we upload the whole surface.
+        aDestRegion = nullptr;
+      }
+    }
+
+    nsIntRegion* regionToUpdate = aDestRegion;
+    if (!mTexture) {
+      hr = mDevice->CreateTexture2D(&desc, nullptr, getter_AddRefs(mTexture));
+      mIsTiled = false;
+      if (FAILED(hr) || !mTexture) {
+        Reset();
+        return false;
+      }
+
+      if (mFlags & TextureFlags::COMPONENT_ALPHA) {
+        regionToUpdate = nullptr;
+      }
+    }
+
+    DataSourceSurface::MappedSurface map;
+    if (!aSurface->Map(DataSourceSurface::MapType::READ, &map)) {
+      gfxCriticalError() << "Failed to map surface.";
+      Reset();
+      return false;
+    }
+
+    RefPtr<ID3D11DeviceContext> context;
+    mDevice->GetImmediateContext(getter_AddRefs(context));
+
+    if (regionToUpdate) {
+      for (auto iter = regionToUpdate->RectIter(); !iter.Done(); iter.Next()) {
+        const IntRect& rect = iter.Get();
+        D3D11_BOX box;
+        box.front = 0;
+        box.back = 1;
+        box.left = rect.X();
+        box.top = rect.Y();
+        box.right = rect.XMost();
+        box.bottom = rect.YMost();
+
+        void* data = map.mData + map.mStride * rect.Y() +
+                     BytesPerPixel(aSurface->GetFormat()) * rect.X();
+
+        context->UpdateSubresource(mTexture, 0, &box, data, map.mStride,
+                                   map.mStride * rect.Height());
+      }
+    } else {
+      context->UpdateSubresource(mTexture, 0, nullptr, map.mData, map.mStride,
+                                 map.mStride * mSize.height);
+    }
+
+    aSurface->Unmap();
+  } else {
+    mIsTiled = true;
+    uint32_t tileCount = GetRequiredTilesD3D11(mSize.width, maxSize) *
+                         GetRequiredTilesD3D11(mSize.height, maxSize);
+
+    mTileTextures.resize(tileCount);
+    mTileSRVs.resize(tileCount);
+    mTexture = nullptr;
+
+    DataSourceSurface::ScopedMap map(aSurface, DataSourceSurface::READ);
+    if (!map.IsMapped()) {
+      gfxCriticalError() << "Failed to map surface.";
+      Reset();
+      return false;
+    }
+
+    for (uint32_t i = 0; i < tileCount; i++) {
+      IntRect tileRect = GetTileRect(i);
+
+      desc.Width = tileRect.Width();
+      desc.Height = tileRect.Height();
+      desc.Usage = D3D11_USAGE_IMMUTABLE;
+
+      D3D11_SUBRESOURCE_DATA initData;
+      initData.pSysMem =
+          map.GetData() + tileRect.Y() * map.GetStride() + tileRect.X() * bpp;
+      initData.SysMemPitch = map.GetStride();
+
+      hr = mDevice->CreateTexture2D(&desc, &initData,
+                                    getter_AddRefs(mTileTextures[i]));
+      if (FAILED(hr) || !mTileTextures[i]) {
+        Reset();
+        return false;
+      }
+    }
+  }
+  return true;
+}
+
+ID3D11Texture2D* DataTextureSourceD3D11::GetD3D11Texture() const {
+  return mIterating ? mTileTextures[mCurrentTile] : mTexture;
+}
+
+RefPtr<TextureSource> DataTextureSourceD3D11::ExtractCurrentTile() {
+  MOZ_ASSERT(mIterating);
+  return new DataTextureSourceD3D11(mDevice, mFormat,
+                                    mTileTextures[mCurrentTile]);
+}
+
+ID3D11ShaderResourceView* DataTextureSourceD3D11::GetShaderResourceView() {
+  if (mIterating) {
+    if (!mTileSRVs[mCurrentTile]) {
+      if (!mTileTextures[mCurrentTile]) {
+        return nullptr;
+      }
+
+      RefPtr<ID3D11Device> device;
+      mTileTextures[mCurrentTile]->GetDevice(getter_AddRefs(device));
+      HRESULT hr = device->CreateShaderResourceView(
+          mTileTextures[mCurrentTile], nullptr,
+          getter_AddRefs(mTileSRVs[mCurrentTile]));
+      if (FAILED(hr)) {
+        gfxCriticalNote
+            << "[D3D11] DataTextureSourceD3D11:GetShaderResourceView CreateSRV "
+               "failure "
+            << gfx::hexa(hr);
+        return nullptr;
+      }
+    }
+    return mTileSRVs[mCurrentTile];
+  }
+
+  return TextureSourceD3D11::GetShaderResourceView();
+}
+
+void DataTextureSourceD3D11::Reset() {
+  mTexture = nullptr;
+  mTileSRVs.resize(0);
+  mTileTextures.resize(0);
+  mIsTiled = false;
+  mSize.width = 0;
+  mSize.height = 0;
+}
+
+IntRect DataTextureSourceD3D11::GetTileRect(uint32_t aIndex) const {
+  return GetTileRectD3D11(aIndex, mSize, GetMaxTextureSizeFromDevice(mDevice));
+}
+
+IntRect DataTextureSourceD3D11::GetTileRect() {
+  IntRect rect = GetTileRect(mCurrentTile);
+  return IntRect(rect.X(), rect.Y(), rect.Width(), rect.Height());
+}
+
+CompositingRenderTargetD3D11::CompositingRenderTargetD3D11(
+    ID3D11Texture2D* aTexture, const gfx::IntPoint& aOrigin,
+    DXGI_FORMAT aFormatOverride)
+    : CompositingRenderTarget(aOrigin) {
+  MOZ_ASSERT(aTexture);
+
+  mTexture = aTexture;
+
+  RefPtr<ID3D11Device> device;
+  mTexture->GetDevice(getter_AddRefs(device));
+
+  mFormatOverride = aFormatOverride;
+
+  // If we happen to have a typeless underlying DXGI surface, we need to be
+  // explicit about the format here. (Such a surface could come from an external
+  // source, such as the Oculus compositor)
+  CD3D11_RENDER_TARGET_VIEW_DESC rtvDesc(D3D11_RTV_DIMENSION_TEXTURE2D,
+                                         mFormatOverride);
+  D3D11_RENDER_TARGET_VIEW_DESC* desc =
+      aFormatOverride == DXGI_FORMAT_UNKNOWN ? nullptr : &rtvDesc;
+
+  HRESULT hr =
+      device->CreateRenderTargetView(mTexture, desc, getter_AddRefs(mRTView));
+
+  if (FAILED(hr)) {
+    LOGD3D11("Failed to create RenderTargetView.");
+  }
+}
+
+void CompositingRenderTargetD3D11::BindRenderTarget(
+    ID3D11DeviceContext* aContext) {
+  if (mClearOnBind) {
+    FLOAT clear[] = {0, 0, 0, 0};
+    aContext->ClearRenderTargetView(mRTView, clear);
+    mClearOnBind = false;
+  }
+  ID3D11RenderTargetView* view = mRTView;
+  aContext->OMSetRenderTargets(1, &view, nullptr);
+}
+
+IntSize CompositingRenderTargetD3D11::GetSize() const {
+  return TextureSourceD3D11::GetSize();
+}
+
+static inline bool ShouldDevCrashOnSyncInitFailure() {
+  // Compositor shutdown does not wait for video decoding to finish, so it is
+  // possible for the compositor to destroy the SyncObject before video has a
+  // chance to initialize it.
+  if (!NS_IsMainThread()) {
+    return false;
+  }
+
+  // Note: CompositorIsInGPUProcess is a main-thread-only function.
+  return !CompositorBridgeChild::CompositorIsInGPUProcess() &&
+         !DeviceManagerDx::Get()->HasDeviceReset();
+}
+
+SyncObjectD3D11Host::SyncObjectD3D11Host(ID3D11Device* aDevice)
+    : mSyncHandle(0), mDevice(aDevice) {
+  MOZ_ASSERT(aDevice);
+}
+
+bool SyncObjectD3D11Host::Init() {
+  CD3D11_TEXTURE2D_DESC desc(
+      DXGI_FORMAT_B8G8R8A8_UNORM, 1, 1, 1, 1,
+      D3D11_BIND_SHADER_RESOURCE | D3D11_BIND_RENDER_TARGET);
+  desc.MiscFlags = D3D11_RESOURCE_MISC_SHARED_KEYEDMUTEX;
+
+  RefPtr<ID3D11Texture2D> texture;
+  HRESULT hr =
+      mDevice->CreateTexture2D(&desc, nullptr, getter_AddRefs(texture));
+  if (FAILED(hr) || !texture) {
+    gfxWarning() << "Could not create a sync texture: " << gfx::hexa(hr);
+    return false;
+  }
+
+  hr = texture->QueryInterface((IDXGIResource**)getter_AddRefs(mSyncTexture));
+  if (FAILED(hr) || !mSyncTexture) {
+    gfxWarning() << "Could not QI sync texture: " << gfx::hexa(hr);
+    return false;
+  }
+
+  hr = mSyncTexture->QueryInterface(
+      (IDXGIKeyedMutex**)getter_AddRefs(mKeyedMutex));
+  if (FAILED(hr) || !mKeyedMutex) {
+    gfxWarning() << "Could not QI keyed-mutex: " << gfx::hexa(hr);
+    return false;
+  }
+
+  hr = mSyncTexture->GetSharedHandle(&mSyncHandle);
+  if (FAILED(hr) || !mSyncHandle) {
+    NS_DispatchToMainThread(NS_NewRunnableFunction(
+        "layers::SyncObjectD3D11Renderer::Init",
+        []() -> void { Accumulate(Telemetry::D3D11_SYNC_HANDLE_FAILURE, 1); }));
+    gfxWarning() << "Could not get sync texture shared handle: "
+                 << gfx::hexa(hr);
+    return false;
+  }
+
+  return true;
+}
+
+SyncHandle SyncObjectD3D11Host::GetSyncHandle() { return mSyncHandle; }
+
+bool SyncObjectD3D11Host::Synchronize(bool aFallible) {
+  HRESULT hr;
+  AutoTextureLock lock(mKeyedMutex, hr, 10000);
+
+  if (hr == WAIT_TIMEOUT) {
+    hr = mDevice->GetDeviceRemovedReason();
+    if (hr != S_OK) {
+      // Since the timeout is related to the driver-removed. Return false for
+      // error handling.
+      gfxCriticalNote << "GFX: D3D11 timeout with device-removed:"
+                      << gfx::hexa(hr);
+    } else if (aFallible) {
+      gfxCriticalNote << "GFX: D3D11 timeout on the D3D11 sync lock.";
+    } else {
+      // There is no driver-removed event. Crash with this timeout.
+      MOZ_CRASH("GFX: D3D11 normal status timeout");
+    }
+
+    return false;
+  }
+  if (hr == WAIT_ABANDONED) {
+    gfxCriticalNote << "GFX: AL_D3D11 abandoned sync";
+  }
+
+  return true;
+}
+
+SyncObjectD3D11Client::SyncObjectD3D11Client(SyncHandle aSyncHandle,
+                                             ID3D11Device* aDevice)
+    : mSyncLock("SyncObjectD3D11"), mSyncHandle(aSyncHandle), mDevice(aDevice) {
+  MOZ_ASSERT(aDevice);
+}
+
+SyncObjectD3D11Client::SyncObjectD3D11Client(SyncHandle aSyncHandle)
+    : mSyncLock("SyncObjectD3D11"), mSyncHandle(aSyncHandle) {}
+
+bool SyncObjectD3D11Client::Init(ID3D11Device* aDevice, bool aFallible) {
+  if (mKeyedMutex) {
+    return true;
+  }
+
+  HRESULT hr = aDevice->OpenSharedResource(
+      mSyncHandle, __uuidof(ID3D11Texture2D),
+      (void**)(ID3D11Texture2D**)getter_AddRefs(mSyncTexture));
+  if (FAILED(hr) || !mSyncTexture) {
+    gfxCriticalNote << "Failed to OpenSharedResource for SyncObjectD3D11: "
+                    << hexa(hr);
+    if (!aFallible && ShouldDevCrashOnSyncInitFailure()) {
+      gfxDevCrash(LogReason::D3D11FinalizeFrame)
+          << "Without device reset: " << hexa(hr);
+    }
+    return false;
+  }
+
+  hr = mSyncTexture->QueryInterface(__uuidof(IDXGIKeyedMutex),
+                                    getter_AddRefs(mKeyedMutex));
+  if (FAILED(hr) || !mKeyedMutex) {
+    // Leave both the critical error and MOZ_CRASH for now; the critical error
+    // lets us "save" the hr value.  We will probably eventually replace this
+    // with gfxDevCrash.
+    if (!aFallible) {
+      gfxCriticalError() << "Failed to get KeyedMutex (2): " << hexa(hr);
+      MOZ_CRASH("GFX: Cannot get D3D11 KeyedMutex");
+    } else {
+      gfxCriticalNote << "Failed to get KeyedMutex (3): " << hexa(hr);
+    }
+    return false;
+  }
+
+  return true;
+}
+
+void SyncObjectD3D11Client::RegisterTexture(ID3D11Texture2D* aTexture) {
+  mSyncedTextures.push_back(aTexture);
+}
+
+bool SyncObjectD3D11Client::IsSyncObjectValid() {
+  MOZ_ASSERT(mDevice);
+  return true;
+}
+
+// We have only 1 sync object. As a thing that somehow works,
+// we copy each of the textures that need to be synced with the compositor
+// into our sync object and only use a lock for this sync object.
+// This way, we don't have to sync every texture we send to the compositor.
+// We only have to do this once per transaction.
+bool SyncObjectD3D11Client::Synchronize(bool aFallible) {
+  MOZ_ASSERT(mDevice);
+  // Since this can be called from either the Paint or Main thread.
+  // We don't want this to race since we initialize the sync texture here
+  // too.
+  MutexAutoLock syncLock(mSyncLock);
+
+  if (!mSyncedTextures.size()) {
+    return true;
+  }
+  if (!Init(mDevice, aFallible)) {
+    return false;
+  }
+
+  return SynchronizeInternal(mDevice, aFallible);
+}
+
+bool SyncObjectD3D11Client::SynchronizeInternal(ID3D11Device* aDevice,
+                                                bool aFallible) {
+  mSyncLock.AssertCurrentThreadOwns();
+
+  HRESULT hr;
+  AutoTextureLock lock(mKeyedMutex, hr, 20000);
+
+  if (hr == WAIT_TIMEOUT) {
+    if (DeviceManagerDx::Get()->HasDeviceReset()) {
+      gfxWarning() << "AcquireSync timed out because of device reset.";
+      return false;
+    }
+    if (aFallible) {
+      gfxWarning() << "Timeout on the D3D11 sync lock.";
+    } else {
+      gfxDevCrash(LogReason::D3D11SyncLock)
+          << "Timeout on the D3D11 sync lock.";
+    }
+    return false;
+  }
+
+  D3D11_BOX box;
+  box.front = box.top = box.left = 0;
+  box.back = box.bottom = box.right = 1;
+
+  RefPtr<ID3D11DeviceContext> ctx;
+  aDevice->GetImmediateContext(getter_AddRefs(ctx));
+
+  for (auto iter = mSyncedTextures.begin(); iter != mSyncedTextures.end();
+       iter++) {
+    ctx->CopySubresourceRegion(mSyncTexture, 0, 0, 0, 0, *iter, 0, &box);
+  }
+
+  mSyncedTextures.clear();
+
+  return true;
+}
+
+uint32_t GetMaxTextureSizeFromDevice(ID3D11Device* aDevice) {
+  return GetMaxTextureSizeForFeatureLevel(aDevice->GetFeatureLevel());
+}
+
+AutoLockD3D11Texture::AutoLockD3D11Texture(ID3D11Texture2D* aTexture) {
+  aTexture->QueryInterface((IDXGIKeyedMutex**)getter_AddRefs(mMutex));
+  if (!mMutex) {
+    return;
+  }
+  HRESULT hr = mMutex->AcquireSync(0, 10000);
+  if (hr == WAIT_TIMEOUT) {
+    MOZ_CRASH("GFX: IMFYCbCrImage timeout");
+  }
+
+  if (FAILED(hr)) {
+    NS_WARNING("Failed to lock the texture");
+  }
+}
+
+AutoLockD3D11Texture::~AutoLockD3D11Texture() {
+  if (!mMutex) {
+    return;
+  }
+  HRESULT hr = mMutex->ReleaseSync(0);
+  if (FAILED(hr)) {
+    NS_WARNING("Failed to unlock the texture");
+  }
+}
+
+SyncObjectD3D11ClientContentDevice::SyncObjectD3D11ClientContentDevice(
+    SyncHandle aSyncHandle)
+    : SyncObjectD3D11Client(aSyncHandle) {}
+
+bool SyncObjectD3D11ClientContentDevice::Synchronize(bool aFallible) {
+  // Since this can be called from either the Paint or Main thread.
+  // We don't want this to race since we initialize the sync texture here
+  // too.
+  MutexAutoLock syncLock(mSyncLock);
+
+  MOZ_ASSERT(mContentDevice);
+
+  if (!mSyncedTextures.size()) {
+    return true;
+  }
+
+  if (!Init(mContentDevice, aFallible)) {
+    return false;
+  }
+
+  RefPtr<ID3D11Device> dev;
+  mSyncTexture->GetDevice(getter_AddRefs(dev));
+
+  if (dev == DeviceManagerDx::Get()->GetContentDevice()) {
+    if (DeviceManagerDx::Get()->HasDeviceReset()) {
+      return false;
+    }
+  }
+
+  if (dev != mContentDevice) {
+    gfxWarning() << "Attempt to sync texture from invalid device.";
+    return false;
+  }
+
+  return SyncObjectD3D11Client::SynchronizeInternal(dev, aFallible);
+}
+
+bool SyncObjectD3D11ClientContentDevice::IsSyncObjectValid() {
+  RefPtr<ID3D11Device> dev;
+  // There is a case that devices are not initialized yet with WebRender.
+  if (gfxPlatform::GetPlatform()->DevicesInitialized()) {
+    dev = DeviceManagerDx::Get()->GetContentDevice();
+  }
+
+  // Update mDevice if the ContentDevice initialization is detected.
+  if (!mContentDevice && dev && NS_IsMainThread()) {
+    mContentDevice = dev;
+  }
+
+  if (!dev || (NS_IsMainThread() && dev != mContentDevice)) {
+    return false;
+  }
+  return true;
+}
+
+void SyncObjectD3D11ClientContentDevice::EnsureInitialized() {
+  if (mContentDevice) {
+    return;
+  }
+
+  if (XRE_IsGPUProcess() || !gfxPlatform::GetPlatform()->DevicesInitialized()) {
+    return;
+  }
+
+  mContentDevice = DeviceManagerDx::Get()->GetContentDevice();
+}
+
+StaticAutoPtr<GpuProcessD3D11TextureMap> GpuProcessD3D11TextureMap::sInstance;
+
+/* static */
+void GpuProcessD3D11TextureMap::Init() {
+  MOZ_ASSERT(XRE_IsGPUProcess());
+  sInstance = new GpuProcessD3D11TextureMap();
+}
+
+/* static */
+void GpuProcessD3D11TextureMap::Shutdown() {
+  MOZ_ASSERT(XRE_IsGPUProcess());
+  sInstance = nullptr;
+}
+
+/* static */
+GpuProcessTextureId GpuProcessD3D11TextureMap::GetNextTextureId() {
+  MOZ_ASSERT(XRE_IsGPUProcess());
+  return GpuProcessTextureId::GetNext();
+}
+
+GpuProcessD3D11TextureMap::GpuProcessD3D11TextureMap()
+    : mD3D11TexturesById("D3D11TextureMap::mD3D11TexturesById") {}
+
+GpuProcessD3D11TextureMap::~GpuProcessD3D11TextureMap() {}
+
+void GpuProcessD3D11TextureMap::Register(
+    GpuProcessTextureId aTextureId, ID3D11Texture2D* aTexture,
+    uint32_t aArrayIndex, const gfx::IntSize& aSize,
+    RefPtr<IMFSampleUsageInfo> aUsageInfo) {
+  MOZ_RELEASE_ASSERT(aTexture);
+  MOZ_RELEASE_ASSERT(aUsageInfo);
+
+  auto textures = mD3D11TexturesById.Lock();
+
+  auto it = textures->find(aTextureId);
+  if (it != textures->end()) {
+    MOZ_ASSERT_UNREACHABLE("unexpected to be called");
+    return;
+  }
+  textures->emplace(aTextureId,
+                    TextureHolder(aTexture, aArrayIndex, aSize, aUsageInfo));
+}
+
+void GpuProcessD3D11TextureMap::Unregister(GpuProcessTextureId aTextureId) {
+  auto textures = mD3D11TexturesById.Lock();
+
+  auto it = textures->find(aTextureId);
+  if (it == textures->end()) {
+    return;
+  }
+  textures->erase(it);
+}
+
+RefPtr<ID3D11Texture2D> GpuProcessD3D11TextureMap::GetTexture(
+    GpuProcessTextureId aTextureId) {
+  auto textures = mD3D11TexturesById.Lock();
+
+  auto it = textures->find(aTextureId);
+  if (it == textures->end()) {
+    return nullptr;
+  }
+
+  return it->second.mTexture;
+}
+
+Maybe<HANDLE> GpuProcessD3D11TextureMap::GetSharedHandleOfCopiedTexture(
+    GpuProcessTextureId aTextureId) {
+  TextureHolder holder;
+  {
+    auto textures = mD3D11TexturesById.Lock();
+
+    auto it = textures->find(aTextureId);
+    if (it == textures->end()) {
+      return Nothing();
+    }
+
+    if (it->second.mCopiedTextureSharedHandle.isSome()) {
+      return it->second.mCopiedTextureSharedHandle;
+    }
+
+    holder = it->second;
+  }
+
+  RefPtr<ID3D11Device> device;
+  holder.mTexture->GetDevice(getter_AddRefs(device));
+  if (!device) {
+    return Nothing();
+  }
+
+  RefPtr<ID3D11DeviceContext> context;
+  device->GetImmediateContext(getter_AddRefs(context));
+  if (!context) {
+    return Nothing();
+  }
+
+  CD3D11_TEXTURE2D_DESC newDesc(
+      DXGI_FORMAT_NV12, holder.mSize.width, holder.mSize.height, 1, 1,
+      D3D11_BIND_RENDER_TARGET | D3D11_BIND_SHADER_RESOURCE);
+  newDesc.MiscFlags = D3D11_RESOURCE_MISC_SHARED;
+
+  RefPtr<ID3D11Texture2D> copiedTexture;
+  HRESULT hr =
+      device->CreateTexture2D(&newDesc, nullptr, getter_AddRefs(copiedTexture));
+  if (FAILED(hr)) {
+    return Nothing();
+  }
+
+  D3D11_TEXTURE2D_DESC inDesc;
+  holder.mTexture->GetDesc(&inDesc);
+
+  D3D11_TEXTURE2D_DESC outDesc;
+  copiedTexture->GetDesc(&outDesc);
+
+  UINT height = std::min(inDesc.Height, outDesc.Height);
+  UINT width = std::min(inDesc.Width, outDesc.Width);
+  D3D11_BOX srcBox = {0, 0, 0, width, height, 1};
+
+  context->CopySubresourceRegion(copiedTexture, 0, 0, 0, 0, holder.mTexture,
+                                 holder.mArrayIndex, &srcBox);
+
+  RefPtr<IDXGIResource> resource;
+  copiedTexture->QueryInterface((IDXGIResource**)getter_AddRefs(resource));
+  if (!resource) {
+    return Nothing();
+  }
+
+  HANDLE sharedHandle;
+  hr = resource->GetSharedHandle(&sharedHandle);
+  if (FAILED(hr)) {
+    return Nothing();
+  }
+
+  RefPtr<ID3D11Query> query;
+  CD3D11_QUERY_DESC desc(D3D11_QUERY_EVENT);
+  hr = device->CreateQuery(&desc, getter_AddRefs(query));
+  if (FAILED(hr) || !query) {
+    gfxWarning() << "Could not create D3D11_QUERY_EVENT: " << gfx::hexa(hr);
+    return Nothing();
+  }
+
+  context->End(query);
+
+  BOOL result;
+  bool ret = WaitForFrameGPUQuery(device, context, query, &result);
+  if (!ret) {
+    gfxCriticalNoteOnce << "WaitForFrameGPUQuery() failed";
+  }
+
+  {
+    auto textures = mD3D11TexturesById.Lock();
+
+    auto it = textures->find(aTextureId);
+    if (it == textures->end()) {
+      MOZ_ASSERT_UNREACHABLE("unexpected to be called");
+      return Nothing();
+    }
+
+    // Disable no video copy for future decoded video frames. Since
+    // GetSharedHandleOfCopiedTexture() is slow.
+    it->second.mIMFSampleUsageInfo->DisableZeroCopyNV12Texture();
+
+    it->second.mCopiedTexture = copiedTexture;
+    it->second.mCopiedTextureSharedHandle = Some(sharedHandle);
+  }
+
+  return Some(sharedHandle);
+}
+
+GpuProcessD3D11TextureMap::TextureHolder::TextureHolder(
+    ID3D11Texture2D* aTexture, uint32_t aArrayIndex, const gfx::IntSize& aSize,
+    RefPtr<IMFSampleUsageInfo> aUsageInfo)
+    : mTexture(aTexture),
+      mArrayIndex(aArrayIndex),
+      mSize(aSize),
+      mIMFSampleUsageInfo(aUsageInfo) {}
+
+}  // namespace layers
+}  // namespace mozilla
diff --git a/gfx/layers/d3d11/TextureD3D11.h b/gfx/layers/d3d11/TextureD3D11.h
new file mode 100644
index 0000000000..2d43835d5b
--- /dev/null
+++ b/gfx/layers/d3d11/TextureD3D11.h
@@ -0,0 +1,649 @@
+/* -*- 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 MOZILLA_GFX_TEXTURED3D11_H
+#define MOZILLA_GFX_TEXTURED3D11_H
+
+#include <d3d11.h>
+
+#include <vector>
+
+#include "d3d9.h"
+#include "gfxWindowsPlatform.h"
+#include "mozilla/DataMutex.h"
+#include "mozilla/GfxMessageUtils.h"
+#include "mozilla/Maybe.h"
+#include "mozilla/gfx/2D.h"
+#include "mozilla/layers/Compositor.h"
+#include "mozilla/layers/SyncObject.h"
+#include "mozilla/layers/TextureClient.h"
+#include "mozilla/layers/TextureHost.h"
+
+namespace mozilla {
+namespace gl {
+class GLBlitHelper;
+}
+
+namespace layers {
+
+already_AddRefed<TextureHost> CreateTextureHostD3D11(
+    const SurfaceDescriptor& aDesc, ISurfaceAllocator* aDeallocator,
+    LayersBackend aBackend, TextureFlags aFlags);
+
+class MOZ_RAII AutoTextureLock final {
+ public:
+  AutoTextureLock(IDXGIKeyedMutex* aMutex, HRESULT& aResult,
+                  uint32_t aTimeout = 0);
+  ~AutoTextureLock();
+
+ private:
+  RefPtr<IDXGIKeyedMutex> mMutex;
+  HRESULT mResult;
+};
+
+class CompositorD3D11;
+class IMFSampleUsageInfo;
+
+class D3D11TextureData final : public TextureData {
+ public:
+  // If aDevice is null, use one provided by gfxWindowsPlatform.
+  static D3D11TextureData* Create(gfx::IntSize aSize,
+                                  gfx::SurfaceFormat aFormat,
+                                  TextureAllocationFlags aAllocFlags,
+                                  ID3D11Device* aDevice = nullptr);
+  static D3D11TextureData* Create(gfx::SourceSurface* aSurface,
+                                  TextureAllocationFlags aAllocFlags,
+                                  ID3D11Device* aDevice = nullptr);
+
+  static already_AddRefed<TextureClient> CreateTextureClient(
+      ID3D11Texture2D* aTexture, uint32_t aIndex, gfx::IntSize aSize,
+      gfx::SurfaceFormat aFormat, gfx::ColorSpace2 aColorSpace,
+      gfx::ColorRange aColorRange, KnowsCompositor* aKnowsCompositor,
+      RefPtr<IMFSampleUsageInfo> aUsageInfo);
+
+  virtual ~D3D11TextureData();
+
+  bool UpdateFromSurface(gfx::SourceSurface* aSurface) override;
+
+  bool Lock(OpenMode aMode) override;
+
+  void Unlock() override;
+
+  already_AddRefed<gfx::DrawTarget> BorrowDrawTarget() override;
+
+  TextureData* CreateSimilar(LayersIPCChannel* aAllocator,
+                             LayersBackend aLayersBackend, TextureFlags aFlags,
+                             TextureAllocationFlags aAllocFlags) const override;
+
+  void SyncWithObject(RefPtr<SyncObjectClient> aSyncObject) override;
+
+  ID3D11Texture2D* GetD3D11Texture() const { return mTexture; }
+
+  void Deallocate(LayersIPCChannel* aAllocator) override;
+
+  D3D11TextureData* AsD3D11TextureData() override { return this; }
+
+  TextureAllocationFlags GetTextureAllocationFlags() const {
+    return mAllocationFlags;
+  }
+
+  void FillInfo(TextureData::Info& aInfo) const override;
+
+  bool Serialize(SurfaceDescriptor& aOutDescrptor) override;
+  void GetSubDescriptor(RemoteDecoderVideoSubDescriptor* aOutDesc) override;
+
+  gfx::ColorRange GetColorRange() const { return mColorRange; }
+  void SetColorRange(gfx::ColorRange aColorRange) { mColorRange = aColorRange; }
+
+  gfx::IntSize GetSize() const { return mSize; }
+  gfx::SurfaceFormat GetSurfaceFormat() const { return mFormat; }
+
+  TextureFlags GetTextureFlags() const override;
+
+  void SetGpuProcessTextureId(GpuProcessTextureId aTextureId) {
+    mGpuProcessTextureId = Some(aTextureId);
+  }
+
+  Maybe<GpuProcessTextureId> GetGpuProcessTextureId() {
+    return mGpuProcessTextureId;
+  }
+
+ private:
+  D3D11TextureData(ID3D11Texture2D* aTexture, uint32_t aArrayIndex,
+                   gfx::IntSize aSize, gfx::SurfaceFormat aFormat,
+                   TextureAllocationFlags aFlags);
+
+  void GetDXGIResource(IDXGIResource** aOutResource);
+
+  bool PrepareDrawTargetInLock(OpenMode aMode);
+
+  friend class gl::GLBlitHelper;
+  bool SerializeSpecific(SurfaceDescriptorD3D10* aOutDesc);
+
+  static D3D11TextureData* Create(gfx::IntSize aSize,
+                                  gfx::SurfaceFormat aFormat,
+                                  gfx::SourceSurface* aSurface,
+                                  TextureAllocationFlags aAllocFlags,
+                                  ID3D11Device* aDevice = nullptr);
+
+  // Hold on to the DrawTarget because it is expensive to create one each
+  // ::Lock.
+  RefPtr<gfx::DrawTarget> mDrawTarget;
+  const gfx::IntSize mSize;
+  const gfx::SurfaceFormat mFormat;
+
+ public:
+  gfx::ColorSpace2 mColorSpace = gfx::ColorSpace2::SRGB;
+
+ private:
+  gfx::ColorRange mColorRange = gfx::ColorRange::LIMITED;
+  bool mNeedsClear = false;
+  const bool mHasSynchronization;
+
+  RefPtr<ID3D11Texture2D> mTexture;
+  Maybe<GpuProcessTextureId> mGpuProcessTextureId;
+  uint32_t mArrayIndex = 0;
+  const TextureAllocationFlags mAllocationFlags;
+};
+
+class DXGIYCbCrTextureData : public TextureData {
+  friend class gl::GLBlitHelper;
+
+ public:
+  static DXGIYCbCrTextureData* Create(
+      IDirect3DTexture9* aTextureY, IDirect3DTexture9* aTextureCb,
+      IDirect3DTexture9* aTextureCr, HANDLE aHandleY, HANDLE aHandleCb,
+      HANDLE aHandleCr, const gfx::IntSize& aSize, const gfx::IntSize& aSizeY,
+      const gfx::IntSize& aSizeCbCr, gfx::ColorDepth aColorDepth,
+      gfx::YUVColorSpace aYUVColorSpace, gfx::ColorRange aColorRange);
+
+  static DXGIYCbCrTextureData* Create(
+      ID3D11Texture2D* aTextureCb, ID3D11Texture2D* aTextureY,
+      ID3D11Texture2D* aTextureCr, const gfx::IntSize& aSize,
+      const gfx::IntSize& aSizeY, const gfx::IntSize& aSizeCbCr,
+      gfx::ColorDepth aColorDepth, gfx::YUVColorSpace aYUVColorSpace,
+      gfx::ColorRange aColorRange);
+
+  bool Lock(OpenMode) override { return true; }
+
+  void Unlock() override {}
+
+  void FillInfo(TextureData::Info& aInfo) const override;
+
+  void SerializeSpecific(SurfaceDescriptorDXGIYCbCr* aOutDesc);
+  bool Serialize(SurfaceDescriptor& aOutDescriptor) override;
+  void GetSubDescriptor(RemoteDecoderVideoSubDescriptor* aOutDesc) override;
+
+  already_AddRefed<gfx::DrawTarget> BorrowDrawTarget() override {
+    return nullptr;
+  }
+
+  void Deallocate(LayersIPCChannel* aAllocator) override;
+
+  bool UpdateFromSurface(gfx::SourceSurface*) override { return false; }
+
+  TextureFlags GetTextureFlags() const override;
+
+  DXGIYCbCrTextureData* AsDXGIYCbCrTextureData() override { return this; }
+
+  gfx::IntSize GetYSize() const { return mSizeY; }
+
+  gfx::IntSize GetCbCrSize() const { return mSizeCbCr; }
+
+  gfx::ColorDepth GetColorDepth() const { return mColorDepth; }
+  gfx::YUVColorSpace GetYUVColorSpace() const { return mYUVColorSpace; }
+  gfx::ColorRange GetColorRange() const { return mColorRange; }
+
+  ID3D11Texture2D* GetD3D11Texture(size_t index) {
+    return mD3D11Textures[index];
+  }
+
+ protected:
+  RefPtr<ID3D11Texture2D> mD3D11Textures[3];
+  RefPtr<IDirect3DTexture9> mD3D9Textures[3];
+  HANDLE mHandles[3];
+  gfx::IntSize mSize;
+  gfx::IntSize mSizeY;
+  gfx::IntSize mSizeCbCr;
+  gfx::ColorDepth mColorDepth;
+  gfx::YUVColorSpace mYUVColorSpace;
+  gfx::ColorRange mColorRange;
+};
+
+/**
+ * TextureSource that provides with the necessary APIs to be composited by a
+ * CompositorD3D11.
+ */
+class TextureSourceD3D11 {
+ public:
+  TextureSourceD3D11() : mFormatOverride(DXGI_FORMAT_UNKNOWN) {}
+  virtual ~TextureSourceD3D11() = default;
+
+  virtual ID3D11Texture2D* GetD3D11Texture() const { return mTexture; }
+  virtual ID3D11ShaderResourceView* GetShaderResourceView();
+
+ protected:
+  virtual gfx::IntSize GetSize() const { return mSize; }
+
+  gfx::IntSize mSize;
+  RefPtr<ID3D11Texture2D> mTexture;
+  RefPtr<ID3D11ShaderResourceView> mSRV;
+  DXGI_FORMAT mFormatOverride;
+};
+
+/**
+ * A TextureSource that implements the DataTextureSource interface.
+ * it can be used without a TextureHost and is able to upload texture data
+ * from a gfx::DataSourceSurface.
+ */
+class DataTextureSourceD3D11 : public DataTextureSource,
+                               public TextureSourceD3D11,
+                               public BigImageIterator {
+ public:
+  /// Constructor allowing the texture to perform texture uploads.
+  ///
+  /// The texture can be used as an actual DataTextureSource.
+  DataTextureSourceD3D11(ID3D11Device* aDevice, gfx::SurfaceFormat aFormat,
+                         TextureFlags aFlags);
+
+  /// Constructor for textures created around DXGI shared handles, disallowing
+  /// texture uploads.
+  ///
+  /// The texture CANNOT be used as a DataTextureSource.
+  DataTextureSourceD3D11(ID3D11Device* aDevice, gfx::SurfaceFormat aFormat,
+                         ID3D11Texture2D* aTexture);
+
+  DataTextureSourceD3D11(gfx::SurfaceFormat aFormat,
+                         TextureSourceProvider* aProvider,
+                         ID3D11Texture2D* aTexture);
+  DataTextureSourceD3D11(gfx::SurfaceFormat aFormat,
+                         TextureSourceProvider* aProvider, TextureFlags aFlags);
+
+  virtual ~DataTextureSourceD3D11();
+
+  const char* Name() const override { return "DataTextureSourceD3D11"; }
+
+  // DataTextureSource
+
+  bool Update(gfx::DataSourceSurface* aSurface,
+              nsIntRegion* aDestRegion = nullptr,
+              gfx::IntPoint* aSrcOffset = nullptr,
+              gfx::IntPoint* aDstOffset = nullptr) override;
+
+  // TextureSource
+
+  TextureSourceD3D11* AsSourceD3D11() override { return this; }
+
+  ID3D11Texture2D* GetD3D11Texture() const override;
+
+  ID3D11ShaderResourceView* GetShaderResourceView() override;
+
+  // Returns nullptr if this texture was created by a DXGI TextureHost.
+  DataTextureSource* AsDataTextureSource() override {
+    return mAllowTextureUploads ? this : nullptr;
+  }
+
+  void DeallocateDeviceData() override { mTexture = nullptr; }
+
+  gfx::IntSize GetSize() const override { return mSize; }
+
+  gfx::SurfaceFormat GetFormat() const override { return mFormat; }
+
+  // BigImageIterator
+
+  BigImageIterator* AsBigImageIterator() override {
+    return mIsTiled ? this : nullptr;
+  }
+
+  size_t GetTileCount() override { return mTileTextures.size(); }
+
+  bool NextTile() override { return (++mCurrentTile < mTileTextures.size()); }
+
+  gfx::IntRect GetTileRect() override;
+
+  void EndBigImageIteration() override { mIterating = false; }
+
+  void BeginBigImageIteration() override {
+    mIterating = true;
+    mCurrentTile = 0;
+  }
+
+  RefPtr<TextureSource> ExtractCurrentTile() override;
+
+  void Reset();
+
+ protected:
+  gfx::IntRect GetTileRect(uint32_t aIndex) const;
+
+  std::vector<RefPtr<ID3D11Texture2D>> mTileTextures;
+  std::vector<RefPtr<ID3D11ShaderResourceView>> mTileSRVs;
+  RefPtr<ID3D11Device> mDevice;
+  gfx::SurfaceFormat mFormat;
+  TextureFlags mFlags;
+  uint32_t mCurrentTile;
+  bool mIsTiled;
+  bool mIterating;
+  // Sadly, the code was originally organized so that this class is used both in
+  // the cases where we want to perform texture uploads through the
+  // DataTextureSource interface, and the cases where we wrap the texture around
+  // an existing DXGI handle in which case we should not use it as a
+  // DataTextureSource. This member differentiates the two scenarios. When it is
+  // false the texture "pretends" to not be a DataTextureSource.
+  bool mAllowTextureUploads;
+};
+
+/**
+ * A TextureHost for shared D3D11 textures.
+ */
+class DXGITextureHostD3D11 : public TextureHost {
+ public:
+  DXGITextureHostD3D11(TextureFlags aFlags,
+                       const SurfaceDescriptorD3D10& aDescriptor);
+
+  void DeallocateDeviceData() override {}
+
+  gfx::SurfaceFormat GetFormat() const override { return mFormat; }
+
+  bool LockWithoutCompositor() override;
+  void UnlockWithoutCompositor() override;
+
+  gfx::IntSize GetSize() const override { return mSize; }
+  gfx::ColorRange GetColorRange() const override { return mColorRange; }
+
+  already_AddRefed<gfx::DataSourceSurface> GetAsSurface() override;
+
+  void CreateRenderTexture(
+      const wr::ExternalImageId& aExternalImageId) override;
+
+  uint32_t NumSubTextures() override;
+
+  void PushResourceUpdates(wr::TransactionBuilder& aResources,
+                           ResourceUpdateOp aOp,
+                           const Range<wr::ImageKey>& aImageKeys,
+                           const wr::ExternalImageId& aExtID) override;
+
+  void PushDisplayItems(wr::DisplayListBuilder& aBuilder,
+                        const wr::LayoutRect& aBounds,
+                        const wr::LayoutRect& aClip, wr::ImageRendering aFilter,
+                        const Range<wr::ImageKey>& aImageKeys,
+                        PushDisplayItemFlagSet aFlags) override;
+
+  bool SupportsExternalCompositing(WebRenderBackend aBackend) override;
+
+ protected:
+  bool LockInternal();
+  void UnlockInternal();
+
+  bool EnsureTextureSource();
+
+  RefPtr<ID3D11Device> GetDevice();
+
+  bool EnsureTexture();
+
+  RefPtr<ID3D11Device> mDevice;
+  RefPtr<ID3D11Texture2D> mTexture;
+  Maybe<GpuProcessTextureId> mGpuProcessTextureId;
+  uint32_t mArrayIndex = 0;
+  RefPtr<DataTextureSourceD3D11> mTextureSource;
+  gfx::IntSize mSize;
+  WindowsHandle mHandle;
+  gfx::SurfaceFormat mFormat;
+
+ public:
+  const gfx::ColorSpace2 mColorSpace;
+
+ protected:
+  const gfx::ColorRange mColorRange;
+  bool mIsLocked;
+};
+
+class DXGIYCbCrTextureHostD3D11 : public TextureHost {
+ public:
+  DXGIYCbCrTextureHostD3D11(TextureFlags aFlags,
+                            const SurfaceDescriptorDXGIYCbCr& aDescriptor);
+
+  void DeallocateDeviceData() override {}
+
+  gfx::SurfaceFormat GetFormat() const override {
+    return gfx::SurfaceFormat::YUV;
+  }
+
+  gfx::ColorDepth GetColorDepth() const override { return mColorDepth; }
+  gfx::YUVColorSpace GetYUVColorSpace() const override {
+    return mYUVColorSpace;
+  }
+  gfx::ColorRange GetColorRange() const override { return mColorRange; }
+
+  gfx::IntSize GetSize() const override { return mSize; }
+
+  already_AddRefed<gfx::DataSourceSurface> GetAsSurface() override {
+    return nullptr;
+  }
+
+  void CreateRenderTexture(
+      const wr::ExternalImageId& aExternalImageId) override;
+
+  uint32_t NumSubTextures() override;
+
+  void PushResourceUpdates(wr::TransactionBuilder& aResources,
+                           ResourceUpdateOp aOp,
+                           const Range<wr::ImageKey>& aImageKeys,
+                           const wr::ExternalImageId& aExtID) override;
+
+  void PushDisplayItems(wr::DisplayListBuilder& aBuilder,
+                        const wr::LayoutRect& aBounds,
+                        const wr::LayoutRect& aClip, wr::ImageRendering aFilter,
+                        const Range<wr::ImageKey>& aImageKeys,
+                        PushDisplayItemFlagSet aFlags) override;
+
+  bool SupportsExternalCompositing(WebRenderBackend aBackend) override;
+
+ private:
+  bool EnsureTextureSource();
+
+ protected:
+  RefPtr<ID3D11Device> GetDevice();
+
+  bool EnsureTexture();
+
+  RefPtr<ID3D11Texture2D> mTextures[3];
+  RefPtr<DataTextureSourceD3D11> mTextureSources[3];
+
+  gfx::IntSize mSize;
+  gfx::IntSize mSizeY;
+  gfx::IntSize mSizeCbCr;
+  WindowsHandle mHandles[3];
+  bool mIsLocked;
+  gfx::ColorDepth mColorDepth;
+  gfx::YUVColorSpace mYUVColorSpace;
+  gfx::ColorRange mColorRange;
+};
+
+class CompositingRenderTargetD3D11 : public CompositingRenderTarget,
+                                     public TextureSourceD3D11 {
+ public:
+  CompositingRenderTargetD3D11(
+      ID3D11Texture2D* aTexture, const gfx::IntPoint& aOrigin,
+      DXGI_FORMAT aFormatOverride = DXGI_FORMAT_UNKNOWN);
+
+  const char* Name() const override { return "CompositingRenderTargetD3D11"; }
+
+  TextureSourceD3D11* AsSourceD3D11() override { return this; }
+
+  void BindRenderTarget(ID3D11DeviceContext* aContext);
+
+  gfx::IntSize GetSize() const override;
+
+  void SetSize(const gfx::IntSize& aSize) { mSize = aSize; }
+
+ private:
+  friend class CompositorD3D11;
+  RefPtr<ID3D11RenderTargetView> mRTView;
+};
+
+class SyncObjectD3D11Host : public SyncObjectHost {
+ public:
+  explicit SyncObjectD3D11Host(ID3D11Device* aDevice);
+
+  bool Init() override;
+
+  SyncHandle GetSyncHandle() override;
+
+  bool Synchronize(bool aFallible) override;
+
+  IDXGIKeyedMutex* GetKeyedMutex() { return mKeyedMutex.get(); };
+
+ private:
+  virtual ~SyncObjectD3D11Host() = default;
+
+  SyncHandle mSyncHandle;
+  RefPtr<ID3D11Device> mDevice;
+  RefPtr<IDXGIResource> mSyncTexture;
+  RefPtr<IDXGIKeyedMutex> mKeyedMutex;
+};
+
+class SyncObjectD3D11Client : public SyncObjectClient {
+ public:
+  SyncObjectD3D11Client(SyncHandle aSyncHandle, ID3D11Device* aDevice);
+
+  bool Synchronize(bool aFallible) override;
+
+  bool IsSyncObjectValid() override;
+
+  void EnsureInitialized() override {}
+
+  SyncType GetSyncType() override { return SyncType::D3D11; }
+
+  void RegisterTexture(ID3D11Texture2D* aTexture);
+
+ protected:
+  explicit SyncObjectD3D11Client(SyncHandle aSyncHandle);
+  bool Init(ID3D11Device* aDevice, bool aFallible);
+  bool SynchronizeInternal(ID3D11Device* aDevice, bool aFallible);
+  Mutex mSyncLock MOZ_UNANNOTATED;
+  RefPtr<ID3D11Texture2D> mSyncTexture;
+  std::vector<ID3D11Texture2D*> mSyncedTextures;
+
+ private:
+  const SyncHandle mSyncHandle;
+  RefPtr<IDXGIKeyedMutex> mKeyedMutex;
+  const RefPtr<ID3D11Device> mDevice;
+};
+
+class SyncObjectD3D11ClientContentDevice : public SyncObjectD3D11Client {
+ public:
+  explicit SyncObjectD3D11ClientContentDevice(SyncHandle aSyncHandle);
+
+  bool Synchronize(bool aFallible) override;
+
+  bool IsSyncObjectValid() override;
+
+  void EnsureInitialized() override;
+
+ private:
+  RefPtr<ID3D11Device> mContentDevice;
+};
+
+inline uint32_t GetMaxTextureSizeForFeatureLevel(
+    D3D_FEATURE_LEVEL aFeatureLevel) {
+  int32_t maxTextureSize;
+  switch (aFeatureLevel) {
+    case D3D_FEATURE_LEVEL_11_1:
+    case D3D_FEATURE_LEVEL_11_0:
+      maxTextureSize = D3D11_REQ_TEXTURE2D_U_OR_V_DIMENSION;
+      break;
+    case D3D_FEATURE_LEVEL_10_1:
+    case D3D_FEATURE_LEVEL_10_0:
+      maxTextureSize = D3D10_REQ_TEXTURE2D_U_OR_V_DIMENSION;
+      break;
+    case D3D_FEATURE_LEVEL_9_3:
+      maxTextureSize = D3D_FL9_3_REQ_TEXTURE2D_U_OR_V_DIMENSION;
+      break;
+    default:
+      maxTextureSize = D3D_FL9_1_REQ_TEXTURE2D_U_OR_V_DIMENSION;
+  }
+  return maxTextureSize;
+}
+
+uint32_t GetMaxTextureSizeFromDevice(ID3D11Device* aDevice);
+void ReportTextureMemoryUsage(ID3D11Texture2D* aTexture, size_t aBytes);
+
+class AutoLockD3D11Texture {
+ public:
+  explicit AutoLockD3D11Texture(ID3D11Texture2D* aTexture);
+  ~AutoLockD3D11Texture();
+
+ private:
+  RefPtr<IDXGIKeyedMutex> mMutex;
+};
+
+class D3D11MTAutoEnter {
+ public:
+  explicit D3D11MTAutoEnter(already_AddRefed<ID3D10Multithread> aMT)
+      : mMT(aMT) {
+    if (mMT) {
+      mMT->Enter();
+    }
+  }
+  ~D3D11MTAutoEnter() {
+    if (mMT) {
+      mMT->Leave();
+    }
+  }
+
+ private:
+  RefPtr<ID3D10Multithread> mMT;
+};
+
+/**
+ * A class to manage ID3D11Texture2Ds that is shared without using shared handle
+ * in GPU process. On some GPUs, ID3D11Texture2Ds of hardware decoded video
+ * frames with zero video frame copy could not use shared handle.
+ */
+class GpuProcessD3D11TextureMap {
+ public:
+  static void Init();
+  static void Shutdown();
+  static GpuProcessD3D11TextureMap* Get() { return sInstance; }
+  static GpuProcessTextureId GetNextTextureId();
+
+  GpuProcessD3D11TextureMap();
+  ~GpuProcessD3D11TextureMap();
+
+  void Register(GpuProcessTextureId aTextureId, ID3D11Texture2D* aTexture,
+                uint32_t aArrayIndex, const gfx::IntSize& aSize,
+                RefPtr<IMFSampleUsageInfo> aUsageInfo);
+  void Unregister(GpuProcessTextureId aTextureId);
+
+  RefPtr<ID3D11Texture2D> GetTexture(GpuProcessTextureId aTextureId);
+  Maybe<HANDLE> GetSharedHandleOfCopiedTexture(GpuProcessTextureId aTextureId);
+
+ private:
+  struct TextureHolder {
+    TextureHolder(ID3D11Texture2D* aTexture, uint32_t aArrayIndex,
+                  const gfx::IntSize& aSize,
+                  RefPtr<IMFSampleUsageInfo> aUsageInfo);
+    TextureHolder() = default;
+
+    RefPtr<ID3D11Texture2D> mTexture;
+    uint32_t mArrayIndex = 0;
+    gfx::IntSize mSize;
+    RefPtr<IMFSampleUsageInfo> mIMFSampleUsageInfo;
+    RefPtr<ID3D11Texture2D> mCopiedTexture;
+    Maybe<HANDLE> mCopiedTextureSharedHandle;
+  };
+
+  DataMutex<std::unordered_map<GpuProcessTextureId, TextureHolder,
+                               GpuProcessTextureId::HashFn>>
+      mD3D11TexturesById;
+
+  static StaticAutoPtr<GpuProcessD3D11TextureMap> sInstance;
+};
+
+}  // namespace layers
+}  // namespace mozilla
+
+#endif /* MOZILLA_GFX_TEXTURED3D11_H */
diff --git a/gfx/layers/d3d11/genshaders.py b/gfx/layers/d3d11/genshaders.py
new file mode 100644
index 0000000000..b9701978d5
--- /dev/null
+++ b/gfx/layers/d3d11/genshaders.py
@@ -0,0 +1,176 @@
+# 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/.
+import argparse
+import codecs
+import locale
+import os
+import re
+import subprocess
+import sys
+import tempfile
+
+import buildconfig
+import yaml
+
+
+def shell_main():
+    parser = argparse.ArgumentParser()
+    parser.add_argument("-o", "--output", type=str, required=True, help="Output file")
+    parser.add_argument("manifest", type=str, help="Manifest source file")
+    args = parser.parse_args()
+
+    with open(args.output, "w") as out_file:
+        process_manifest(out_file, args.manifest)
+
+
+def main(output_fp, input_filename):
+    return process_manifest(output_fp, input_filename)
+
+
+HEADER = """// AUTOGENERATED - DO NOT EDIT
+namespace mozilla {
+namespace layers {
+
+struct ShaderBytes { const void* mData; size_t mLength; };
+"""
+FOOTER = """
+} // namespace layers
+} // namespace mozilla"""
+
+
+def process_manifest(output_fp, manifest_filename):
+    with codecs.open(manifest_filename, "r", "UTF-8") as in_fp:
+        manifest = yaml.safe_load(in_fp)
+    shader_folder, _ = os.path.split(manifest_filename)
+
+    output_fp.write(HEADER)
+
+    deps = set()
+    for block in manifest:
+        if "type" not in block:
+            raise Exception("Expected 'type' key with shader mode")
+        if "file" not in block:
+            raise Exception("Expected 'file' key with shader file")
+        if "shaders" not in block:
+            raise Exception("Expected 'shaders' key with shader name list")
+
+        shader_file = os.path.join(shader_folder, block["file"])
+        deps.add(shader_file)
+
+        shader_model = block["type"]
+        for shader_name in block["shaders"]:
+            new_deps = run_fxc(
+                shader_model=shader_model,
+                shader_file=shader_file,
+                shader_name=shader_name,
+                output_fp=output_fp,
+            )
+            deps |= new_deps
+
+    output_fp.write(FOOTER)
+    return deps
+
+
+def run_fxc(shader_model, shader_file, shader_name, output_fp):
+    fxc_location = buildconfig.substs["FXC"]
+
+    argv = [
+        fxc_location,
+        "-nologo",
+        "-T{0}".format(shader_model),
+        os.path.relpath(shader_file),
+        "-E{0}".format(shader_name),
+        "-Vn{0}".format(shader_name),
+        "-Vi",
+    ]
+    if "WINNT" not in buildconfig.substs["HOST_OS_ARCH"]:
+        argv.insert(0, buildconfig.substs["WINE"])
+    if shader_model.startswith("vs_"):
+        argv += ["-DVERTEX_SHADER"]
+    elif shader_model.startswith("ps_"):
+        argv += ["-DPIXEL_SHADER"]
+
+    deps = None
+    with ScopedTempFilename() as temp_filename:
+        argv += ["-Fh{0}".format(os.path.relpath(temp_filename))]
+
+        sys.stdout.write("{0}\n".format(" ".join(argv)))
+        sys.stdout.flush()
+        proc_stdout = subprocess.check_output(argv)
+        proc_stdout = decode_console_text(sys.stdout, proc_stdout)
+        deps = find_dependencies(proc_stdout)
+        assert "fxc2" in fxc_location or len(deps) > 0
+
+        with open(temp_filename, "r") as temp_fp:
+            output_fp.write(temp_fp.read())
+
+    output_fp.write("ShaderBytes s{0} = {{ {0}, sizeof({0}) }};\n".format(shader_name))
+    return deps
+
+
+def find_dependencies(fxc_output):
+    # Dependencies look like this:
+    #   Resolved to [<path>]
+    #
+    # Microsoft likes to change output strings based on the user's language, so
+    # instead of pattern matching on that string, we take everything in between
+    # brackets. We filter out potentially bogus strings later.
+    deps = set()
+    for line in fxc_output.split("\n"):
+        m = re.search(r"\[([^\]]+)\]", line)
+        if m is None:
+            continue
+        dep_path = m.group(1)
+        dep_path = os.path.normpath(dep_path)
+        # When run via Wine, FXC's output contains Windows paths on the Z drive.
+        # We want to normalize them back to unix paths for the build system.
+        if "WINNT" not in buildconfig.substs[
+            "HOST_OS_ARCH"
+        ] and dep_path.lower().startswith("z:"):
+            dep_path = dep_path[2:].replace("\\", "/")
+        if os.path.isfile(dep_path):
+            deps.add(dep_path)
+    return deps
+
+
+# Python reads the raw bytes from stdout, so we need to try our best to
+# capture that as a valid Python string.
+
+
+def decode_console_text(pipe, text):
+    try:
+        if pipe.encoding:
+            return text.decode(pipe.encoding, "replace")
+    except Exception:
+        pass
+    try:
+        return text.decode(locale.getpreferredencoding(), "replace")
+    except Exception:
+        return text.decode("utf8", "replace")
+
+
+# Allocate a temporary file name and delete it when done. We need an extra
+# wrapper for this since TemporaryNamedFile holds the file open.
+
+
+class ScopedTempFilename(object):
+    def __init__(self):
+        self.name = None
+
+    def __enter__(self):
+        with tempfile.NamedTemporaryFile(dir=os.getcwd(), delete=False) as tmp:
+            self.name = tmp.name
+            return self.name
+
+    def __exit__(self, type, value, traceback):
+        if not self.name:
+            return
+        try:
+            os.unlink(self.name)
+        except Exception:
+            pass
+
+
+if __name__ == "__main__":
+    shell_main()
diff --git a/gfx/layers/d3d11/shaders.manifest b/gfx/layers/d3d11/shaders.manifest
new file mode 100644
index 0000000000..d8836d2740
--- /dev/null
+++ b/gfx/layers/d3d11/shaders.manifest
@@ -0,0 +1,13 @@
+- type: vs_4_0_level_9_3
+  file: CompositorD3D11.hlsl
+  shaders:
+   - LayerQuadVS
+
+- type: ps_4_0_level_9_3
+  file: CompositorD3D11.hlsl
+  shaders:
+   - SolidColorShader
+   - RGBShader
+   - RGBAShader
+   - YCbCrShader
+   - NV12Shader