diff -r 000000000000 -r 6474c204b198 gfx/2d/DrawTargetD2D.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gfx/2d/DrawTargetD2D.cpp	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,2762 @@
+/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * 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 <initguid.h>
+#include "DrawTargetD2D.h"
+#include "SourceSurfaceD2D.h"
+#ifdef USE_D2D1_1
+#include "SourceSurfaceD2D1.h"
+#endif
+#include "SourceSurfaceD2DTarget.h"
+#include "ShadersD2D.h"
+#include "PathD2D.h"
+#include "GradientStopsD2D.h"
+#include "ScaledFontDWrite.h"
+#include "ImageScaling.h"
+#include "Logging.h"
+#include "Tools.h"
+#include <algorithm>
+#include "mozilla/Constants.h"
+#include "FilterNodeSoftware.h"
+
+#ifdef USE_D2D1_1
+#include "FilterNodeD2D1.h"
+#endif
+
+#include <dwrite.h>
+
+// decltype is not usable for overloaded functions.
+typedef HRESULT (WINAPI*D2D1CreateFactoryFunc)(
+    D2D1_FACTORY_TYPE factoryType,
+    REFIID iid,
+    CONST D2D1_FACTORY_OPTIONS *pFactoryOptions,
+    void **factory
+);
+
+using namespace std;
+
+namespace mozilla {
+namespace gfx {
+
+struct Vertex {
+  float x;
+  float y;
+};
+
+ID2D1Factory *DrawTargetD2D::mFactory;
+IDWriteFactory *DrawTargetD2D::mDWriteFactory;
+uint64_t DrawTargetD2D::mVRAMUsageDT;
+uint64_t DrawTargetD2D::mVRAMUsageSS;
+
+// Helper class to restore surface contents that was clipped out but may have
+// been altered by a drawing call.
+class AutoSaveRestoreClippedOut
+{
+public:
+  AutoSaveRestoreClippedOut(DrawTargetD2D *aDT)
+    : mDT(aDT)
+  {}
+
+  void Save() {
+    if (!mDT->mPushedClips.size()) {
+      return;
+    }
+
+    mDT->Flush();
+
+    RefPtr<ID3D10Texture2D> tmpTexture;
+    IntSize size = mDT->mSize;
+    SurfaceFormat format = mDT->mFormat;
+
+    CD3D10_TEXTURE2D_DESC desc(DXGIFormat(format), size.width, size.height,
+                               1, 1);
+    desc.BindFlags = D3D10_BIND_RENDER_TARGET | D3D10_BIND_SHADER_RESOURCE;
+
+    HRESULT hr = mDT->mDevice->CreateTexture2D(&desc, nullptr, byRef(tmpTexture));
+    if (FAILED(hr)) {
+      gfxWarning() << "Failed to create temporary texture to hold surface data.";
+    }
+    mDT->mDevice->CopyResource(tmpTexture, mDT->mTexture);
+
+    D2D1_BITMAP_PROPERTIES props = D2D1::BitmapProperties(D2DPixelFormat(format));
+
+    RefPtr<IDXGISurface> surf;
+
+    tmpTexture->QueryInterface((IDXGISurface**)byRef(surf));
+
+    hr = mDT->mRT->CreateSharedBitmap(IID_IDXGISurface, surf,
+                                      &props, byRef(mOldSurfBitmap));
+
+    if (FAILED(hr)) {
+      gfxWarning() << "Failed to create shared bitmap for old surface.";
+    }
+
+    IntRect clipBounds;
+    mClippedArea = mDT->GetClippedGeometry(&clipBounds);
+
+    if (!clipBounds.IsEqualEdges(IntRect(IntPoint(0, 0), mDT->mSize))) {
+      // We still need to take into account clipBounds if it contains additional
+      // clipping information.
+      RefPtr<ID2D1RectangleGeometry> rectGeom;
+      factory()->CreateRectangleGeometry(D2D1::Rect(Float(clipBounds.x),
+                                                    Float(clipBounds.y),
+                                                    Float(clipBounds.XMost()),
+                                                    Float(clipBounds.YMost())),
+                                         byRef(rectGeom));
+
+      mClippedArea = IntersectGeometry(mClippedArea, rectGeom);
+    }
+  }
+
+  ID2D1Factory *factory() { return mDT->factory(); }
+
+  ~AutoSaveRestoreClippedOut()
+  {
+    if (!mOldSurfBitmap) {
+      return;
+    }
+
+    ID2D1RenderTarget *rt = mDT->mRT;
+
+    // Write the area that was clipped out back to the surface. This all
+    // happens in device space.
+    rt->SetTransform(D2D1::IdentityMatrix());
+    mDT->mTransformDirty = true;
+
+    RefPtr<ID2D1RectangleGeometry> rectGeom;
+    factory()->CreateRectangleGeometry(
+      D2D1::RectF(0, 0, float(mDT->mSize.width), float(mDT->mSize.height)),
+      byRef(rectGeom));
+
+    RefPtr<ID2D1PathGeometry> invClippedArea;
+    factory()->CreatePathGeometry(byRef(invClippedArea));
+    RefPtr<ID2D1GeometrySink> sink;
+    invClippedArea->Open(byRef(sink));
+
+    rectGeom->CombineWithGeometry(mClippedArea, D2D1_COMBINE_MODE_EXCLUDE, nullptr, sink);
+    sink->Close();
+
+    RefPtr<ID2D1BitmapBrush> brush;
+    rt->CreateBitmapBrush(mOldSurfBitmap, D2D1::BitmapBrushProperties(), D2D1::BrushProperties(), byRef(brush));                   
+
+    rt->FillGeometry(invClippedArea, brush);
+  }
+
+private:
+
+  DrawTargetD2D *mDT;  
+
+  // If we have an operator unbound by the source, this will contain a bitmap
+  // with the old dest surface data.
+  RefPtr<ID2D1Bitmap> mOldSurfBitmap;
+  // This contains the area drawing is clipped to.
+  RefPtr<ID2D1Geometry> mClippedArea;
+};
+
+ID2D1Factory *D2DFactory()
+{
+  return DrawTargetD2D::factory();
+}
+
+DrawTargetD2D::DrawTargetD2D()
+  : mCurrentCachedLayer(0)
+  , mClipsArePushed(false)
+  , mPrivateData(nullptr)
+{
+}
+
+DrawTargetD2D::~DrawTargetD2D()
+{
+  if (mRT) {  
+    PopAllClips();
+
+    mRT->EndDraw();
+
+    mVRAMUsageDT -= GetByteSize();
+  }
+  if (mTempRT) {
+    mTempRT->EndDraw();
+
+    mVRAMUsageDT -= GetByteSize();
+  }
+
+  if (mSnapshot) {
+    // We may hold the only reference. MarkIndependent will clear mSnapshot;
+    // keep the snapshot object alive so it doesn't get destroyed while
+    // MarkIndependent is running.
+    RefPtr<SourceSurfaceD2DTarget> deathGrip = mSnapshot;
+    // mSnapshot can be treated as independent of this DrawTarget since we know
+    // this DrawTarget won't change again.
+    deathGrip->MarkIndependent();
+    // mSnapshot will be cleared now.
+  }
+
+  for (int i = 0; i < kLayerCacheSize; i++) {
+    if (mCachedLayers[i]) {
+      mCachedLayers[i] = nullptr;
+      mVRAMUsageDT -= GetByteSize();
+    }
+  }
+
+  // Targets depending on us can break that dependency, since we're obviously not going to
+  // be modified in the future.
+  for (TargetSet::iterator iter = mDependentTargets.begin();
+       iter != mDependentTargets.end(); iter++) {
+    (*iter)->mDependingOnTargets.erase(this);
+  }
+  // Our dependencies on other targets no longer matter.
+  for (TargetSet::iterator iter = mDependingOnTargets.begin();
+       iter != mDependingOnTargets.end(); iter++) {
+    (*iter)->mDependentTargets.erase(this);
+  }
+}
+
+/*
+ * DrawTarget Implementation
+ */
+TemporaryRef<SourceSurface>
+DrawTargetD2D::Snapshot()
+{
+  if (!mSnapshot) {
+    mSnapshot = new SourceSurfaceD2DTarget(this, mTexture, mFormat);
+    Flush();
+  }
+
+  return mSnapshot;
+}
+
+void
+DrawTargetD2D::Flush()
+{
+  PopAllClips();
+
+  HRESULT hr = mRT->Flush();
+
+  if (FAILED(hr)) {
+    gfxWarning() << "Error reported when trying to flush D2D rendertarget. Code: " << hr;
+  }
+
+  // We no longer depend on any target.
+  for (TargetSet::iterator iter = mDependingOnTargets.begin();
+       iter != mDependingOnTargets.end(); iter++) {
+    (*iter)->mDependentTargets.erase(this);
+  }
+  mDependingOnTargets.clear();
+}
+
+void
+DrawTargetD2D::AddDependencyOnSource(SourceSurfaceD2DTarget* aSource)
+{
+  if (aSource->mDrawTarget && !mDependingOnTargets.count(aSource->mDrawTarget)) {
+    aSource->mDrawTarget->mDependentTargets.insert(this);
+    mDependingOnTargets.insert(aSource->mDrawTarget);
+  }
+}
+
+TemporaryRef<ID2D1Bitmap>
+DrawTargetD2D::GetBitmapForSurface(SourceSurface *aSurface,
+                                   Rect &aSource)
+{
+  RefPtr<ID2D1Bitmap> bitmap;
+
+  switch (aSurface->GetType()) {
+
+  case SurfaceType::D2D1_BITMAP:
+    {
+      SourceSurfaceD2D *srcSurf = static_cast<SourceSurfaceD2D*>(aSurface);
+      bitmap = srcSurf->GetBitmap();
+    }
+    break;
+  case SurfaceType::D2D1_DRAWTARGET:
+    {
+      SourceSurfaceD2DTarget *srcSurf = static_cast<SourceSurfaceD2DTarget*>(aSurface);
+      bitmap = srcSurf->GetBitmap(mRT);
+      AddDependencyOnSource(srcSurf);
+    }
+    break;
+  default:
+    {
+      RefPtr<DataSourceSurface> srcSurf = aSurface->GetDataSurface();
+
+      if (!srcSurf) {
+        gfxDebug() << "Not able to deal with non-data source surface.";
+        return nullptr;
+      }
+
+      // We need to include any pixels that are overlapped by aSource
+      Rect sourceRect(aSource);
+      sourceRect.RoundOut();
+
+      if (sourceRect.IsEmpty()) {
+        gfxDebug() << "Bitmap source is empty. DrawBitmap will silently fail.";
+        return nullptr;
+      }
+
+      if (sourceRect.width > mRT->GetMaximumBitmapSize() ||
+          sourceRect.height > mRT->GetMaximumBitmapSize()) {
+        gfxDebug() << "Bitmap source larger than texture size specified. DrawBitmap will silently fail.";
+        // Don't know how to deal with this yet.
+        return nullptr;
+      }
+
+      int stride = srcSurf->Stride();
+
+      unsigned char *data = srcSurf->GetData() +
+                            (uint32_t)sourceRect.y * stride +
+                            (uint32_t)sourceRect.x * BytesPerPixel(srcSurf->GetFormat());
+
+      D2D1_BITMAP_PROPERTIES props =
+        D2D1::BitmapProperties(D2DPixelFormat(srcSurf->GetFormat()));
+      mRT->CreateBitmap(D2D1::SizeU(UINT32(sourceRect.width), UINT32(sourceRect.height)), data, stride, props, byRef(bitmap));
+
+      // subtract the integer part leaving the fractional part
+      aSource.x -= (uint32_t)aSource.x;
+      aSource.y -= (uint32_t)aSource.y;
+    }
+    break;
+  }
+
+  return bitmap;
+}
+
+#ifdef USE_D2D1_1
+TemporaryRef<ID2D1Image>
+DrawTargetD2D::GetImageForSurface(SourceSurface *aSurface)
+{
+  RefPtr<ID2D1Image> image;
+
+  if (aSurface->GetType() == SurfaceType::D2D1_1_IMAGE) {
+    image = static_cast<SourceSurfaceD2D1*>(aSurface)->GetImage();
+    static_cast<SourceSurfaceD2D1*>(aSurface)->EnsureIndependent();
+  } else {
+    Rect r(Point(), Size(aSurface->GetSize()));
+    image = GetBitmapForSurface(aSurface, r);
+  }
+
+  return image;
+}
+#endif
+
+void
+DrawTargetD2D::DrawSurface(SourceSurface *aSurface,
+                           const Rect &aDest,
+                           const Rect &aSource,
+                           const DrawSurfaceOptions &aSurfOptions,
+                           const DrawOptions &aOptions)
+{
+  RefPtr<ID2D1Bitmap> bitmap;
+
+  ID2D1RenderTarget *rt = GetRTForOperation(aOptions.mCompositionOp, ColorPattern(Color()));
+  
+  PrepareForDrawing(rt);
+
+  rt->SetAntialiasMode(D2DAAMode(aOptions.mAntialiasMode));
+
+  Rect srcRect = aSource;
+
+  bitmap = GetBitmapForSurface(aSurface, srcRect);
+  if (!bitmap) {
+      return;
+  }
+ 
+  rt->DrawBitmap(bitmap, D2DRect(aDest), aOptions.mAlpha, D2DFilter(aSurfOptions.mFilter), D2DRect(srcRect));
+
+  FinalizeRTForOperation(aOptions.mCompositionOp, ColorPattern(Color()), aDest);
+}
+
+void
+DrawTargetD2D::DrawFilter(FilterNode *aNode,
+                          const Rect &aSourceRect,
+                          const Point &aDestPoint,
+                          const DrawOptions &aOptions)
+{
+#ifdef USE_D2D1_1
+  RefPtr<ID2D1DeviceContext> dc;
+  HRESULT hr;
+  
+  hr = mRT->QueryInterface((ID2D1DeviceContext**)byRef(dc));
+
+  if (SUCCEEDED(hr) && aNode->GetBackendType() == FILTER_BACKEND_DIRECT2D1_1) {
+    ID2D1RenderTarget *rt = GetRTForOperation(aOptions.mCompositionOp, ColorPattern(Color()));
+  
+    PrepareForDrawing(rt);
+
+    rt->SetAntialiasMode(D2DAAMode(aOptions.mAntialiasMode));
+    hr = rt->QueryInterface((ID2D1DeviceContext**)byRef(dc));
+
+    if (SUCCEEDED(hr)) {
+      dc->DrawImage(static_cast<FilterNodeD2D1*>(aNode)->OutputEffect(), D2DPoint(aDestPoint), D2DRect(aSourceRect));
+
+      Rect destRect = aSourceRect;
+      destRect.MoveBy(aDestPoint);
+      FinalizeRTForOperation(aOptions.mCompositionOp, ColorPattern(Color()), destRect);
+      return;
+    }
+  }
+#endif
+
+  if (aNode->GetBackendType() != FILTER_BACKEND_SOFTWARE) {
+    gfxWarning() << "Invalid filter backend passed to DrawTargetD2D!";
+    return;
+  }
+
+  FilterNodeSoftware* filter = static_cast<FilterNodeSoftware*>(aNode);
+  filter->Draw(this, aSourceRect, aDestPoint, aOptions);
+}
+
+void
+DrawTargetD2D::MaskSurface(const Pattern &aSource,
+                           SourceSurface *aMask,
+                           Point aOffset,
+                           const DrawOptions &aOptions)
+{
+  RefPtr<ID2D1Bitmap> bitmap;
+
+  ID2D1RenderTarget *rt = GetRTForOperation(aOptions.mCompositionOp, ColorPattern(Color()));
+
+  PrepareForDrawing(rt);
+
+  // FillOpacityMask only works if the antialias mode is MODE_ALIASED
+  rt->SetAntialiasMode(D2D1_ANTIALIAS_MODE_ALIASED);
+
+  IntSize size = aMask->GetSize();
+  Rect maskRect = Rect(0.f, 0.f, size.width, size.height);
+  bitmap = GetBitmapForSurface(aMask, maskRect);
+  if (!bitmap) {
+       return;
+  }
+
+  Rect dest = Rect(aOffset.x, aOffset.y, size.width, size.height);
+  RefPtr<ID2D1Brush> brush = CreateBrushForPattern(aSource, aOptions.mAlpha);
+  rt->FillOpacityMask(bitmap, brush, D2D1_OPACITY_MASK_CONTENT_GRAPHICS, D2DRect(dest), D2DRect(maskRect));
+
+  FinalizeRTForOperation(aOptions.mCompositionOp, ColorPattern(Color()), dest);
+}
+
+void
+DrawTargetD2D::DrawSurfaceWithShadow(SourceSurface *aSurface,
+                                     const Point &aDest,
+                                     const Color &aColor,
+                                     const Point &aOffset,
+                                     Float aSigma,
+                                     CompositionOp aOperator)
+{
+  RefPtr<ID3D10ShaderResourceView> srView = nullptr;
+  if (aSurface->GetType() != SurfaceType::D2D1_DRAWTARGET) {
+    return;
+  }
+
+  SetScissorToRect(nullptr);
+
+  // XXX - This function is way too long, it should be split up soon to make
+  // it more graspable!
+
+  Flush();
+
+  AutoSaveRestoreClippedOut restoreClippedOut(this);
+
+  if (!IsOperatorBoundByMask(aOperator)) {
+    restoreClippedOut.Save();
+  }
+
+  srView = static_cast<SourceSurfaceD2DTarget*>(aSurface)->GetSRView();
+
+  EnsureViews();
+
+  if (!mTempRTView) {
+    // This view is only needed in this path.
+    HRESULT hr = mDevice->CreateRenderTargetView(mTempTexture, nullptr, byRef(mTempRTView));
+
+    if (FAILED(hr)) {
+      gfxWarning() << "Failure to create RenderTargetView. Code: " << hr;
+      return;
+    }
+  }
+
+
+  RefPtr<ID3D10RenderTargetView> destRTView = mRTView;
+  RefPtr<ID3D10Texture2D> destTexture;
+  HRESULT hr;
+
+  RefPtr<ID3D10Texture2D> maskTexture;
+  RefPtr<ID3D10ShaderResourceView> maskSRView;
+  IntRect clipBounds;
+  if (mPushedClips.size()) {
+    EnsureClipMaskTexture(&clipBounds);
+
+    mDevice->CreateShaderResourceView(mCurrentClipMaskTexture, nullptr, byRef(maskSRView));
+  }
+
+  IntSize srcSurfSize;
+  ID3D10RenderTargetView *rtViews;
+  D3D10_VIEWPORT viewport;
+
+  UINT stride = sizeof(Vertex);
+  UINT offset = 0;
+  ID3D10Buffer *buff = mPrivateData->mVB;
+
+  mDevice->IASetPrimitiveTopology(D3D10_PRIMITIVE_TOPOLOGY_TRIANGLESTRIP);
+  mDevice->IASetVertexBuffers(0, 1, &buff, &stride, &offset);
+  mDevice->IASetInputLayout(mPrivateData->mInputLayout);
+
+  mPrivateData->mEffect->GetVariableByName("QuadDesc")->AsVector()->
+    SetFloatVector(ShaderConstantRectD3D10(-1.0f, 1.0f, 2.0f, -2.0f));
+  mPrivateData->mEffect->GetVariableByName("TexCoords")->AsVector()->
+    SetFloatVector(ShaderConstantRectD3D10(0, 0, 1.0f, 1.0f));
+
+  // If we create a downsampled source surface we need to correct aOffset for that.
+  Point correctedOffset = aOffset + aDest;
+
+  // The 'practical' scaling factors.
+  Float dsFactorX = 1.0f;
+  Float dsFactorY = 1.0f;
+
+  if (aSigma > 1.7f) {
+    // In this case 9 samples of our original will not cover it. Generate the
+    // mip levels for the original and create a downsampled version from
+    // them. We generate a version downsampled so that a kernel for a sigma
+    // of 1.7 will produce the right results.
+    float blurWeights[9] = { 0.234671f, 0.197389f, 0.197389f, 0.117465f, 0.117465f, 0.049456f, 0.049456f, 0.014732f, 0.014732f };
+    mPrivateData->mEffect->GetVariableByName("BlurWeights")->SetRawValue(blurWeights, 0, sizeof(blurWeights));
+    
+    CD3D10_TEXTURE2D_DESC desc(DXGI_FORMAT_B8G8R8A8_UNORM,
+                               aSurface->GetSize().width,
+                               aSurface->GetSize().height);
+    desc.BindFlags = D3D10_BIND_RENDER_TARGET | D3D10_BIND_SHADER_RESOURCE;
+    desc.MiscFlags = D3D10_RESOURCE_MISC_GENERATE_MIPS;
+
+    RefPtr<ID3D10Texture2D> mipTexture;
+    hr = mDevice->CreateTexture2D(&desc, nullptr, byRef(mipTexture));
+
+    if (FAILED(hr)) {
+      gfxWarning() << "Failure to create temporary texture. Size: " <<
+        aSurface->GetSize() << " Code: " << hr;
+      return;
+    }
+
+    IntSize dsSize = IntSize(int32_t(aSurface->GetSize().width * (1.7f / aSigma)),
+                             int32_t(aSurface->GetSize().height * (1.7f / aSigma)));
+
+    if (dsSize.width < 1) {
+      dsSize.width = 1;
+    }
+    if (dsSize.height < 1) {
+      dsSize.height = 1;
+    }
+
+    dsFactorX = dsSize.width / Float(aSurface->GetSize().width);
+    dsFactorY = dsSize.height / Float(aSurface->GetSize().height);
+    correctedOffset.x *= dsFactorX;
+    correctedOffset.y *= dsFactorY;
+
+    desc = CD3D10_TEXTURE2D_DESC(DXGI_FORMAT_B8G8R8A8_UNORM,
+                                 dsSize.width,
+                                 dsSize.height, 1, 1);
+    desc.BindFlags = D3D10_BIND_RENDER_TARGET | D3D10_BIND_SHADER_RESOURCE;
+    RefPtr<ID3D10Texture2D> tmpDSTexture;
+    hr = mDevice->CreateTexture2D(&desc, nullptr, byRef(tmpDSTexture));
+
+    if (FAILED(hr)) {
+      gfxWarning() << "Failure to create temporary texture. Size: " << dsSize << " Code: " << hr;
+      return;
+    }
+
+    D3D10_BOX box;
+    box.left = box.top = box.front = 0;
+    box.back = 1;
+    box.right = aSurface->GetSize().width;
+    box.bottom = aSurface->GetSize().height;
+    mDevice->CopySubresourceRegion(mipTexture, 0, 0, 0, 0, static_cast<SourceSurfaceD2DTarget*>(aSurface)->mTexture, 0, &box);
+
+    mDevice->CreateShaderResourceView(mipTexture, nullptr,  byRef(srView));
+    mDevice->GenerateMips(srView);
+
+    RefPtr<ID3D10RenderTargetView> dsRTView;
+    RefPtr<ID3D10ShaderResourceView> dsSRView;
+    mDevice->CreateRenderTargetView(tmpDSTexture, nullptr,  byRef(dsRTView));
+    mDevice->CreateShaderResourceView(tmpDSTexture, nullptr,  byRef(dsSRView));
+
+    // We're not guaranteed the texture we created will be empty, we've
+    // seen old content at least on NVidia drivers.
+    float color[4] = { 0, 0, 0, 0 };
+    mDevice->ClearRenderTargetView(dsRTView, color);
+
+    rtViews = dsRTView;
+    mDevice->OMSetRenderTargets(1, &rtViews, nullptr);
+
+    viewport.MaxDepth = 1;
+    viewport.MinDepth = 0;
+    viewport.Height = dsSize.height;
+    viewport.Width = dsSize.width;
+    viewport.TopLeftX = 0;
+    viewport.TopLeftY = 0;
+
+    mDevice->RSSetViewports(1, &viewport);
+    mPrivateData->mEffect->GetVariableByName("tex")->AsShaderResource()->SetResource(srView);
+    mPrivateData->mEffect->GetTechniqueByName("SampleTexture")->
+      GetPassByIndex(0)->Apply(0);
+
+    mDevice->OMSetBlendState(GetBlendStateForOperator(CompositionOp::OP_OVER), nullptr, 0xffffffff);
+
+    mDevice->Draw(4, 0);
+    
+    srcSurfSize = dsSize;
+
+    srView = dsSRView;
+  } else {
+    // In this case generate a kernel to draw the blur directly to the temp
+    // surf in one direction and to final in the other.
+    float blurWeights[9];
+
+    float normalizeFactor = 1.0f;
+    if (aSigma != 0) {
+      normalizeFactor = 1.0f / Float(sqrt(2 * M_PI * pow(aSigma, 2)));
+    }
+
+    blurWeights[0] = normalizeFactor;
+
+    // XXX - We should actually optimize for Sigma = 0 here. We could use a
+    // much simpler shader and save a lot of texture lookups.
+    for (int i = 1; i < 9; i += 2) {
+      if (aSigma != 0) {
+        blurWeights[i] = blurWeights[i + 1] = normalizeFactor *
+          exp(-pow(float((i + 1) / 2), 2) / (2 * pow(aSigma, 2)));
+      } else {
+        blurWeights[i] = blurWeights[i + 1] = 0;
+      }
+    }
+    
+    mPrivateData->mEffect->GetVariableByName("BlurWeights")->SetRawValue(blurWeights, 0, sizeof(blurWeights));
+
+    viewport.MaxDepth = 1;
+    viewport.MinDepth = 0;
+    viewport.Height = aSurface->GetSize().height;
+    viewport.Width = aSurface->GetSize().width;
+    viewport.TopLeftX = 0;
+    viewport.TopLeftY = 0;
+
+    mDevice->RSSetViewports(1, &viewport);
+
+    srcSurfSize = aSurface->GetSize();
+  }
+
+  // We may need to draw to a different intermediate surface if our temp
+  // texture isn't big enough.
+  bool needBiggerTemp = srcSurfSize.width > mSize.width ||
+                        srcSurfSize.height > mSize.height;
+
+  RefPtr<ID3D10RenderTargetView> tmpRTView;
+  RefPtr<ID3D10ShaderResourceView> tmpSRView;
+  RefPtr<ID3D10Texture2D> tmpTexture;
+  
+  IntSize tmpSurfSize = mSize;
+
+  if (!needBiggerTemp) {
+    tmpRTView = mTempRTView;
+    tmpSRView = mSRView;
+
+    // There could still be content here!
+    float color[4] = { 0, 0, 0, 0 };
+    mDevice->ClearRenderTargetView(tmpRTView, color);
+  } else {
+    CD3D10_TEXTURE2D_DESC desc(DXGI_FORMAT_B8G8R8A8_UNORM,
+                               srcSurfSize.width,
+                               srcSurfSize.height,
+                               1, 1);
+    desc.BindFlags = D3D10_BIND_RENDER_TARGET | D3D10_BIND_SHADER_RESOURCE;
+
+    mDevice->CreateTexture2D(&desc, nullptr,  byRef(tmpTexture));
+    mDevice->CreateRenderTargetView(tmpTexture, nullptr,  byRef(tmpRTView));
+    mDevice->CreateShaderResourceView(tmpTexture, nullptr,  byRef(tmpSRView));
+
+    tmpSurfSize = srcSurfSize;
+  }
+
+  rtViews = tmpRTView;
+  mDevice->OMSetRenderTargets(1, &rtViews, nullptr);
+
+  mPrivateData->mEffect->GetVariableByName("tex")->AsShaderResource()->SetResource(srView);
+
+  // Premultiplied!
+  float shadowColor[4] = { aColor.r * aColor.a, aColor.g * aColor.a,
+                           aColor.b * aColor.a, aColor.a };
+  mPrivateData->mEffect->GetVariableByName("ShadowColor")->AsVector()->
+    SetFloatVector(shadowColor);
+
+  float pixelOffset = 1.0f / float(srcSurfSize.width);
+  float blurOffsetsH[9] = { 0, pixelOffset, -pixelOffset,
+                            2.0f * pixelOffset, -2.0f * pixelOffset,
+                            3.0f * pixelOffset, -3.0f * pixelOffset,
+                            4.0f * pixelOffset, - 4.0f * pixelOffset };
+
+  pixelOffset = 1.0f / float(tmpSurfSize.height);
+  float blurOffsetsV[9] = { 0, pixelOffset, -pixelOffset,
+                            2.0f * pixelOffset, -2.0f * pixelOffset,
+                            3.0f * pixelOffset, -3.0f * pixelOffset,
+                            4.0f * pixelOffset, - 4.0f * pixelOffset };
+
+  mPrivateData->mEffect->GetVariableByName("BlurOffsetsH")->
+    SetRawValue(blurOffsetsH, 0, sizeof(blurOffsetsH));
+  mPrivateData->mEffect->GetVariableByName("BlurOffsetsV")->
+    SetRawValue(blurOffsetsV, 0, sizeof(blurOffsetsV));
+
+  mPrivateData->mEffect->GetTechniqueByName("SampleTextureWithShadow")->
+    GetPassByIndex(0)->Apply(0);
+
+  mDevice->Draw(4, 0);
+
+  viewport.MaxDepth = 1;
+  viewport.MinDepth = 0;
+  viewport.Height = mSize.height;
+  viewport.Width = mSize.width;
+  viewport.TopLeftX = 0;
+  viewport.TopLeftY = 0;
+
+  mDevice->RSSetViewports(1, &viewport);
+
+  mPrivateData->mEffect->GetVariableByName("tex")->AsShaderResource()->SetResource(tmpSRView);
+
+  rtViews = destRTView;
+  mDevice->OMSetRenderTargets(1, &rtViews, nullptr);
+
+  Point shadowDest = aDest + aOffset;
+
+  mPrivateData->mEffect->GetVariableByName("QuadDesc")->AsVector()->
+    SetFloatVector(ShaderConstantRectD3D10(-1.0f + ((shadowDest.x / mSize.width) * 2.0f),
+                                           1.0f - (shadowDest.y / mSize.height * 2.0f),
+                                           (Float(aSurface->GetSize().width) / mSize.width) * 2.0f,
+                                           (-Float(aSurface->GetSize().height) / mSize.height) * 2.0f));
+  mPrivateData->mEffect->GetVariableByName("TexCoords")->AsVector()->
+    SetFloatVector(ShaderConstantRectD3D10(0, 0, Float(srcSurfSize.width) / tmpSurfSize.width,
+                                                 Float(srcSurfSize.height) / tmpSurfSize.height));
+
+  if (mPushedClips.size()) {
+    mPrivateData->mEffect->GetVariableByName("mask")->AsShaderResource()->SetResource(maskSRView);
+    mPrivateData->mEffect->GetVariableByName("MaskTexCoords")->AsVector()->
+      SetFloatVector(ShaderConstantRectD3D10(shadowDest.x / mSize.width, shadowDest.y / mSize.height,
+                                             Float(aSurface->GetSize().width) / mSize.width,
+                                             Float(aSurface->GetSize().height) / mSize.height));
+    mPrivateData->mEffect->GetTechniqueByName("SampleTextureWithShadow")->
+      GetPassByIndex(2)->Apply(0);
+    SetScissorToRect(&clipBounds);
+  } else {
+    mPrivateData->mEffect->GetTechniqueByName("SampleTextureWithShadow")->
+      GetPassByIndex(1)->Apply(0);
+  }
+
+  mDevice->OMSetBlendState(GetBlendStateForOperator(aOperator), nullptr, 0xffffffff);
+
+  mDevice->Draw(4, 0);
+
+  mPrivateData->mEffect->GetVariableByName("QuadDesc")->AsVector()->
+    SetFloatVector(ShaderConstantRectD3D10(-1.0f + ((aDest.x / mSize.width) * 2.0f),
+                                           1.0f - (aDest.y / mSize.height * 2.0f),
+                                           (Float(aSurface->GetSize().width) / mSize.width) * 2.0f,
+                                           (-Float(aSurface->GetSize().height) / mSize.height) * 2.0f));
+  mPrivateData->mEffect->GetVariableByName("tex")->AsShaderResource()->SetResource(static_cast<SourceSurfaceD2DTarget*>(aSurface)->GetSRView());
+  mPrivateData->mEffect->GetVariableByName("TexCoords")->AsVector()->
+    SetFloatVector(ShaderConstantRectD3D10(0, 0, 1.0f, 1.0f));
+
+  if (mPushedClips.size()) {
+    mPrivateData->mEffect->GetVariableByName("MaskTexCoords")->AsVector()->
+      SetFloatVector(ShaderConstantRectD3D10(aDest.x / mSize.width, aDest.y / mSize.height,
+                                             Float(aSurface->GetSize().width) / mSize.width,
+                                             Float(aSurface->GetSize().height) / mSize.height));
+    mPrivateData->mEffect->GetTechniqueByName("SampleMaskedTexture")->
+      GetPassByIndex(0)->Apply(0);
+    // We've set the scissor rect here for the previous draw call.
+  } else {
+    mPrivateData->mEffect->GetTechniqueByName("SampleTexture")->
+      GetPassByIndex(0)->Apply(0);
+  }
+
+  mDevice->OMSetBlendState(GetBlendStateForOperator(aOperator), nullptr, 0xffffffff);
+
+  mDevice->Draw(4, 0);
+}
+
+void
+DrawTargetD2D::ClearRect(const Rect &aRect)
+{
+  MarkChanged();
+  PushClipRect(aRect);
+
+  PopAllClips();
+
+  AutoSaveRestoreClippedOut restoreClippedOut(this);
+
+  D2D1_RECT_F clipRect;
+  bool isPixelAligned;
+  bool pushedClip = false;
+  if (mTransform.IsRectilinear() &&
+      GetDeviceSpaceClipRect(clipRect, isPixelAligned)) {
+    if (mTransformDirty ||
+        !mTransform.IsIdentity()) {
+      mRT->SetTransform(D2D1::IdentityMatrix());
+      mTransformDirty = true;
+    }
+
+    mRT->PushAxisAlignedClip(clipRect, isPixelAligned ? D2D1_ANTIALIAS_MODE_ALIASED : D2D1_ANTIALIAS_MODE_PER_PRIMITIVE);
+    pushedClip = true;
+  } else {
+    FlushTransformToRT();
+    restoreClippedOut.Save();
+  }
+
+  mRT->Clear(D2D1::ColorF(0, 0.0f));
+
+  if (pushedClip) {
+    mRT->PopAxisAlignedClip();
+  }
+
+  PopClip();
+  return;
+}
+
+void
+DrawTargetD2D::CopySurface(SourceSurface *aSurface,
+                           const IntRect &aSourceRect,
+                           const IntPoint &aDestination)
+{
+  MarkChanged();
+
+  Rect srcRect(Float(aSourceRect.x), Float(aSourceRect.y),
+               Float(aSourceRect.width), Float(aSourceRect.height));
+  Rect dstRect(Float(aDestination.x), Float(aDestination.y),
+               Float(aSourceRect.width), Float(aSourceRect.height));
+
+  mRT->SetTransform(D2D1::IdentityMatrix());
+  mTransformDirty = true;
+  mRT->PushAxisAlignedClip(D2DRect(dstRect), D2D1_ANTIALIAS_MODE_ALIASED);
+  mRT->Clear(D2D1::ColorF(0, 0.0f));
+  mRT->PopAxisAlignedClip();
+
+  RefPtr<ID2D1Bitmap> bitmap = GetBitmapForSurface(aSurface, srcRect);
+  if (!bitmap) {
+    return;
+  }
+
+  if (aSurface->GetFormat() == SurfaceFormat::A8) {
+    RefPtr<ID2D1SolidColorBrush> brush;
+    mRT->CreateSolidColorBrush(D2D1::ColorF(D2D1::ColorF::White),
+                               D2D1::BrushProperties(), byRef(brush));
+    mRT->SetAntialiasMode(D2D1_ANTIALIAS_MODE_ALIASED);
+    mRT->FillOpacityMask(bitmap, brush, D2D1_OPACITY_MASK_CONTENT_GRAPHICS);
+  } else {
+    mRT->DrawBitmap(bitmap, D2DRect(dstRect), 1.0f,
+            D2D1_BITMAP_INTERPOLATION_MODE_LINEAR,
+            D2DRect(srcRect));
+  }
+}
+
+void
+DrawTargetD2D::FillRect(const Rect &aRect,
+                        const Pattern &aPattern,
+                        const DrawOptions &aOptions)
+{
+  ID2D1RenderTarget *rt = GetRTForOperation(aOptions.mCompositionOp, aPattern);
+
+  PrepareForDrawing(rt);
+
+  rt->SetAntialiasMode(D2DAAMode(aOptions.mAntialiasMode));
+
+  RefPtr<ID2D1Brush> brush = CreateBrushForPattern(aPattern, aOptions.mAlpha);
+
+  if (brush) {
+    rt->FillRectangle(D2DRect(aRect), brush);
+  }
+
+  FinalizeRTForOperation(aOptions.mCompositionOp, aPattern, aRect);
+}
+
+void
+DrawTargetD2D::StrokeRect(const Rect &aRect,
+                          const Pattern &aPattern,
+                          const StrokeOptions &aStrokeOptions,
+                          const DrawOptions &aOptions)
+{
+  ID2D1RenderTarget *rt = GetRTForOperation(aOptions.mCompositionOp, aPattern);
+
+  PrepareForDrawing(rt);
+
+  rt->SetAntialiasMode(D2DAAMode(aOptions.mAntialiasMode));
+
+  RefPtr<ID2D1Brush> brush = CreateBrushForPattern(aPattern, aOptions.mAlpha);
+
+  RefPtr<ID2D1StrokeStyle> strokeStyle = CreateStrokeStyleForOptions(aStrokeOptions);
+
+  if (brush && strokeStyle) {
+    rt->DrawRectangle(D2DRect(aRect), brush, aStrokeOptions.mLineWidth, strokeStyle);
+  }
+
+  FinalizeRTForOperation(aOptions.mCompositionOp, aPattern, aRect);
+}
+
+void
+DrawTargetD2D::StrokeLine(const Point &aStart,
+                          const Point &aEnd,
+                          const Pattern &aPattern,
+                          const StrokeOptions &aStrokeOptions,
+                          const DrawOptions &aOptions)
+{
+  ID2D1RenderTarget *rt = GetRTForOperation(aOptions.mCompositionOp, aPattern);
+
+  PrepareForDrawing(rt);
+
+  rt->SetAntialiasMode(D2DAAMode(aOptions.mAntialiasMode));
+
+  RefPtr<ID2D1Brush> brush = CreateBrushForPattern(aPattern, aOptions.mAlpha);
+
+  RefPtr<ID2D1StrokeStyle> strokeStyle = CreateStrokeStyleForOptions(aStrokeOptions);
+
+  if (brush && strokeStyle) {
+    rt->DrawLine(D2DPoint(aStart), D2DPoint(aEnd), brush, aStrokeOptions.mLineWidth, strokeStyle);
+  }
+
+  FinalizeRTForOperation(aOptions.mCompositionOp, aPattern, Rect(0, 0, Float(mSize.width), Float(mSize.height)));
+}
+
+void
+DrawTargetD2D::Stroke(const Path *aPath,
+                      const Pattern &aPattern,
+                      const StrokeOptions &aStrokeOptions,
+                      const DrawOptions &aOptions)
+{
+  if (aPath->GetBackendType() != BackendType::DIRECT2D) {
+    gfxDebug() << *this << ": Ignoring drawing call for incompatible path.";
+    return;
+  }
+
+  const PathD2D *d2dPath = static_cast<const PathD2D*>(aPath);
+
+  ID2D1RenderTarget *rt = GetRTForOperation(aOptions.mCompositionOp, aPattern);
+
+  PrepareForDrawing(rt);
+
+  rt->SetAntialiasMode(D2DAAMode(aOptions.mAntialiasMode));
+
+  RefPtr<ID2D1Brush> brush = CreateBrushForPattern(aPattern, aOptions.mAlpha);
+
+  RefPtr<ID2D1StrokeStyle> strokeStyle = CreateStrokeStyleForOptions(aStrokeOptions);
+
+  if (brush && strokeStyle) {
+    rt->DrawGeometry(d2dPath->mGeometry, brush, aStrokeOptions.mLineWidth, strokeStyle);
+  }
+
+  FinalizeRTForOperation(aOptions.mCompositionOp, aPattern, Rect(0, 0, Float(mSize.width), Float(mSize.height)));
+}
+
+void
+DrawTargetD2D::Fill(const Path *aPath,
+                    const Pattern &aPattern,
+                    const DrawOptions &aOptions)
+{
+  if (aPath->GetBackendType() != BackendType::DIRECT2D) {
+    gfxDebug() << *this << ": Ignoring drawing call for incompatible path.";
+    return;
+  }
+
+  const PathD2D *d2dPath = static_cast<const PathD2D*>(aPath);
+
+  ID2D1RenderTarget *rt = GetRTForOperation(aOptions.mCompositionOp, aPattern);
+
+  PrepareForDrawing(rt);
+
+  rt->SetAntialiasMode(D2DAAMode(aOptions.mAntialiasMode));
+
+  RefPtr<ID2D1Brush> brush = CreateBrushForPattern(aPattern, aOptions.mAlpha);
+
+  if (brush) {
+    rt->FillGeometry(d2dPath->mGeometry, brush);
+  }
+
+  Rect bounds;
+  if (aOptions.mCompositionOp != CompositionOp::OP_OVER) {
+    D2D1_RECT_F d2dbounds;
+    d2dPath->mGeometry->GetBounds(D2D1::IdentityMatrix(), &d2dbounds);
+    bounds = ToRect(d2dbounds);
+  }
+  FinalizeRTForOperation(aOptions.mCompositionOp, aPattern, bounds);
+}
+
+void
+DrawTargetD2D::FillGlyphs(ScaledFont *aFont,
+                          const GlyphBuffer &aBuffer,
+                          const Pattern &aPattern,
+                          const DrawOptions &aOptions,
+                          const GlyphRenderingOptions* aRenderOptions)
+{
+  if (aFont->GetType() != FontType::DWRITE) {
+    gfxDebug() << *this << ": Ignoring drawing call for incompatible font.";
+    return;
+  }
+
+  ScaledFontDWrite *font = static_cast<ScaledFontDWrite*>(aFont);
+
+  IDWriteRenderingParams *params = nullptr;
+  if (aRenderOptions) {
+    if (aRenderOptions->GetType() != FontType::DWRITE) {
+      gfxDebug() << *this << ": Ignoring incompatible GlyphRenderingOptions.";
+      // This should never happen.
+      MOZ_ASSERT(false);
+    } else {
+      params = static_cast<const GlyphRenderingOptionsDWrite*>(aRenderOptions)->mParams;
+    }
+  }
+
+  AntialiasMode aaMode = font->GetDefaultAAMode();
+
+  if (aOptions.mAntialiasMode != AntialiasMode::DEFAULT) {
+    aaMode = aOptions.mAntialiasMode;
+  }
+
+  if (mFormat == SurfaceFormat::B8G8R8A8 && mPermitSubpixelAA &&
+      aOptions.mCompositionOp == CompositionOp::OP_OVER && aPattern.GetType() == PatternType::COLOR &&
+      aaMode == AntialiasMode::SUBPIXEL) {
+    if (FillGlyphsManual(font, aBuffer,
+                         static_cast<const ColorPattern*>(&aPattern)->mColor,
+                         params, aOptions)) {
+      return;
+    }
+  }
+
+  ID2D1RenderTarget *rt = GetRTForOperation(aOptions.mCompositionOp, aPattern);
+
+  PrepareForDrawing(rt);
+
+  D2D1_TEXT_ANTIALIAS_MODE d2dAAMode = D2D1_TEXT_ANTIALIAS_MODE_DEFAULT;
+
+  switch (aaMode) {
+  case AntialiasMode::NONE:
+    d2dAAMode = D2D1_TEXT_ANTIALIAS_MODE_ALIASED;
+    break;
+  case AntialiasMode::GRAY:
+    d2dAAMode = D2D1_TEXT_ANTIALIAS_MODE_GRAYSCALE;
+    break;
+  case AntialiasMode::SUBPIXEL:
+    d2dAAMode = D2D1_TEXT_ANTIALIAS_MODE_CLEARTYPE;
+    break;
+  default:
+    d2dAAMode = D2D1_TEXT_ANTIALIAS_MODE_DEFAULT;
+  }
+
+  if (d2dAAMode == D2D1_TEXT_ANTIALIAS_MODE_CLEARTYPE &&
+      mFormat != SurfaceFormat::B8G8R8X8) {
+    d2dAAMode = D2D1_TEXT_ANTIALIAS_MODE_GRAYSCALE;
+  }
+
+  rt->SetTextAntialiasMode(d2dAAMode);
+
+  if (rt != mRT || params != mTextRenderingParams) {
+    rt->SetTextRenderingParams(params);
+    if (rt == mRT) {
+      mTextRenderingParams = params;
+    }
+  }
+
+  RefPtr<ID2D1Brush> brush = CreateBrushForPattern(aPattern, aOptions.mAlpha);
+
+  AutoDWriteGlyphRun autoRun;
+  DWriteGlyphRunFromGlyphs(aBuffer, font, &autoRun);
+
+  if (brush) {
+    rt->DrawGlyphRun(D2D1::Point2F(), &autoRun, brush);
+  }
+
+  FinalizeRTForOperation(aOptions.mCompositionOp, aPattern, Rect(0, 0, (Float)mSize.width, (Float)mSize.height));
+}
+
+void
+DrawTargetD2D::Mask(const Pattern &aSource,
+                    const Pattern &aMask,
+                    const DrawOptions &aOptions)
+{
+  ID2D1RenderTarget *rt = GetRTForOperation(aOptions.mCompositionOp, aSource);
+  
+  PrepareForDrawing(rt);
+
+  RefPtr<ID2D1Brush> brush = CreateBrushForPattern(aSource, aOptions.mAlpha);
+  RefPtr<ID2D1Brush> maskBrush = CreateBrushForPattern(aMask, 1.0f);
+
+  RefPtr<ID2D1Layer> layer;
+
+  layer = GetCachedLayer();
+
+  rt->PushLayer(D2D1::LayerParameters(D2D1::InfiniteRect(), nullptr,
+                                      D2D1_ANTIALIAS_MODE_PER_PRIMITIVE,
+                                      D2D1::IdentityMatrix(),
+                                      1.0f, maskBrush),
+                layer);
+
+  Rect rect(0, 0, (Float)mSize.width, (Float)mSize.height);
+  Matrix mat = mTransform;
+  mat.Invert();
+  
+  rt->FillRectangle(D2DRect(mat.TransformBounds(rect)), brush);
+  PopCachedLayer(rt);
+
+  FinalizeRTForOperation(aOptions.mCompositionOp, aSource, Rect(0, 0, (Float)mSize.width, (Float)mSize.height));
+}
+
+void
+DrawTargetD2D::PushClip(const Path *aPath)
+{
+  if (aPath->GetBackendType() != BackendType::DIRECT2D) {
+    gfxDebug() << *this << ": Ignoring clipping call for incompatible path.";
+    return;
+  }
+
+  mCurrentClipMaskTexture = nullptr;
+  mCurrentClippedGeometry = nullptr;
+
+  RefPtr<PathD2D> pathD2D = static_cast<PathD2D*>(const_cast<Path*>(aPath));
+
+  PushedClip clip;
+  clip.mTransform = D2DMatrix(mTransform);
+  clip.mPath = pathD2D;
+  
+  pathD2D->mGeometry->GetBounds(clip.mTransform, &clip.mBounds);
+  
+  clip.mLayer = GetCachedLayer();
+
+  mPushedClips.push_back(clip);
+
+  // The transform of clips is relative to the world matrix, since we use the total
+  // transform for the clips, make the world matrix identity.
+  mRT->SetTransform(D2D1::IdentityMatrix());
+  mTransformDirty = true;
+
+  if (mClipsArePushed) {
+    PushD2DLayer(mRT, pathD2D->mGeometry, clip.mLayer, clip.mTransform);
+  }
+}
+
+void
+DrawTargetD2D::PushClipRect(const Rect &aRect)
+{
+  mCurrentClipMaskTexture = nullptr;
+  mCurrentClippedGeometry = nullptr;
+  if (!mTransform.IsRectilinear()) {
+    // Whoops, this isn't a rectangle in device space, Direct2D will not deal
+    // with this transform the way we want it to.
+    // See remarks: http://msdn.microsoft.com/en-us/library/dd316860%28VS.85%29.aspx
+
+    RefPtr<PathBuilder> pathBuilder = CreatePathBuilder();
+    pathBuilder->MoveTo(aRect.TopLeft());
+    pathBuilder->LineTo(aRect.TopRight());
+    pathBuilder->LineTo(aRect.BottomRight());
+    pathBuilder->LineTo(aRect.BottomLeft());
+    pathBuilder->Close();
+    RefPtr<Path> path = pathBuilder->Finish();
+    return PushClip(path);
+  }
+
+  PushedClip clip;
+  Rect rect = mTransform.TransformBounds(aRect);
+  IntRect intRect;
+  clip.mIsPixelAligned = rect.ToIntRect(&intRect);
+
+  // Do not store the transform, just store the device space rectangle directly.
+  clip.mBounds = D2DRect(rect);
+
+  mPushedClips.push_back(clip);
+
+  mRT->SetTransform(D2D1::IdentityMatrix());
+  mTransformDirty = true;
+
+  if (mClipsArePushed) {
+    mRT->PushAxisAlignedClip(clip.mBounds, clip.mIsPixelAligned ? D2D1_ANTIALIAS_MODE_ALIASED : D2D1_ANTIALIAS_MODE_PER_PRIMITIVE);
+  }
+}
+
+void
+DrawTargetD2D::PopClip()
+{
+  mCurrentClipMaskTexture = nullptr;
+  mCurrentClippedGeometry = nullptr;
+  if (mClipsArePushed) {
+    if (mPushedClips.back().mLayer) {
+      PopCachedLayer(mRT);
+    } else {
+      mRT->PopAxisAlignedClip();
+    }
+  }
+  mPushedClips.pop_back();
+}
+
+TemporaryRef<SourceSurface> 
+DrawTargetD2D::CreateSourceSurfaceFromData(unsigned char *aData,
+                                           const IntSize &aSize,
+                                           int32_t aStride,
+                                           SurfaceFormat aFormat) const
+{
+  RefPtr<SourceSurfaceD2D> newSurf = new SourceSurfaceD2D();
+
+  if (!newSurf->InitFromData(aData, aSize, aStride, aFormat, mRT)) {
+    return nullptr;
+  }
+
+  return newSurf;
+}
+
+TemporaryRef<SourceSurface> 
+DrawTargetD2D::OptimizeSourceSurface(SourceSurface *aSurface) const
+{
+  if (aSurface->GetType() == SurfaceType::D2D1_BITMAP ||
+      aSurface->GetType() == SurfaceType::D2D1_DRAWTARGET) {
+    return aSurface;
+  }
+
+  RefPtr<DataSourceSurface> data = aSurface->GetDataSurface();
+
+  DataSourceSurface::MappedSurface map;
+  if (!data->Map(DataSourceSurface::MapType::READ, &map)) {
+    return nullptr;
+  }
+
+  RefPtr<SourceSurfaceD2D> newSurf = new SourceSurfaceD2D();
+  bool success = newSurf->InitFromData(map.mData, data->GetSize(), map.mStride, data->GetFormat(), mRT);
+
+  data->Unmap();
+
+  if (!success) {
+    return data;
+  }
+  return newSurf;
+}
+
+TemporaryRef<SourceSurface>
+DrawTargetD2D::CreateSourceSurfaceFromNativeSurface(const NativeSurface &aSurface) const
+{
+  if (aSurface.mType != NativeSurfaceType::D3D10_TEXTURE) {
+    gfxDebug() << *this << ": Failure to create source surface from non-D3D10 texture native surface.";
+    return nullptr;
+  }
+  RefPtr<SourceSurfaceD2D> newSurf = new SourceSurfaceD2D();
+
+  if (!newSurf->InitFromTexture(static_cast<ID3D10Texture2D*>(aSurface.mSurface),
+                                aSurface.mFormat,
+                                mRT))
+  {
+    gfxWarning() << *this << ": Failed to create SourceSurface from texture.";
+    return nullptr;
+  }
+
+  return newSurf;
+}
+
+TemporaryRef<DrawTarget>
+DrawTargetD2D::CreateSimilarDrawTarget(const IntSize &aSize, SurfaceFormat aFormat) const
+{
+  RefPtr<DrawTargetD2D> newTarget =
+    new DrawTargetD2D();
+
+  if (!newTarget->Init(aSize, aFormat)) {
+    gfxDebug() << *this << ": Failed to create optimal draw target. Size: " << aSize;
+    return nullptr;
+  }
+
+  return newTarget;
+}
+
+TemporaryRef<PathBuilder>
+DrawTargetD2D::CreatePathBuilder(FillRule aFillRule) const
+{
+  RefPtr<ID2D1PathGeometry> path;
+  HRESULT hr = factory()->CreatePathGeometry(byRef(path));
+
+  if (FAILED(hr)) {
+    gfxWarning() << "Failed to create Direct2D Path Geometry. Code: " << hr;
+    return nullptr;
+  }
+
+  RefPtr<ID2D1GeometrySink> sink;
+  hr = path->Open(byRef(sink));
+  if (FAILED(hr)) {
+    gfxWarning() << "Failed to access Direct2D Path Geometry. Code: " << hr;
+    return nullptr;
+  }
+
+  if (aFillRule == FillRule::FILL_WINDING) {
+    sink->SetFillMode(D2D1_FILL_MODE_WINDING);
+  }
+
+  return new PathBuilderD2D(sink, path, aFillRule);
+}
+
+TemporaryRef<GradientStops>
+DrawTargetD2D::CreateGradientStops(GradientStop *rawStops, uint32_t aNumStops, ExtendMode aExtendMode) const
+{
+  D2D1_GRADIENT_STOP *stops = new D2D1_GRADIENT_STOP[aNumStops];
+
+  for (uint32_t i = 0; i < aNumStops; i++) {
+    stops[i].position = rawStops[i].offset;
+    stops[i].color = D2DColor(rawStops[i].color);
+  }
+
+  RefPtr<ID2D1GradientStopCollection> stopCollection;
+
+  HRESULT hr =
+    mRT->CreateGradientStopCollection(stops, aNumStops,
+                                      D2D1_GAMMA_2_2, D2DExtend(aExtendMode),
+                                      byRef(stopCollection));
+  delete [] stops;
+
+  if (FAILED(hr)) {
+    gfxWarning() << "Failed to create GradientStopCollection. Code: " << hr;
+    return nullptr;
+  }
+
+  return new GradientStopsD2D(stopCollection);
+}
+
+TemporaryRef<FilterNode>
+DrawTargetD2D::CreateFilter(FilterType aType)
+{
+#ifdef USE_D2D1_1
+  RefPtr<ID2D1DeviceContext> dc;
+  HRESULT hr = mRT->QueryInterface((ID2D1DeviceContext**)byRef(dc));
+
+  if (SUCCEEDED(hr)) {
+    return FilterNodeD2D1::Create(this, dc, aType);
+  }
+#endif
+  return FilterNodeSoftware::Create(aType);
+}
+
+void*
+DrawTargetD2D::GetNativeSurface(NativeSurfaceType aType)
+{
+  if (aType != NativeSurfaceType::D3D10_TEXTURE) {
+    return nullptr;
+  }
+
+  return mTexture;
+}
+
+/*
+ * Public functions
+ */
+bool
+DrawTargetD2D::Init(const IntSize &aSize, SurfaceFormat aFormat)
+{
+  HRESULT hr;
+
+  mSize = aSize;
+  mFormat = aFormat;
+
+  if (!Factory::GetDirect3D10Device()) {
+    gfxDebug() << "Failed to Init Direct2D DrawTarget (No D3D10 Device set.)";
+    return false;
+  }
+  mDevice = Factory::GetDirect3D10Device();
+
+  CD3D10_TEXTURE2D_DESC desc(DXGIFormat(aFormat),
+                             mSize.width,
+                             mSize.height,
+                             1, 1);
+  desc.BindFlags = D3D10_BIND_RENDER_TARGET | D3D10_BIND_SHADER_RESOURCE;
+
+  hr = mDevice->CreateTexture2D(&desc, nullptr, byRef(mTexture));
+
+  if (FAILED(hr)) {
+    gfxDebug() << "Failed to init Direct2D DrawTarget. Size: " << mSize << " Code: " << hr;
+    return false;
+  }
+
+  if (!InitD2DRenderTarget()) {
+    return false;
+  }
+
+  mRT->Clear(D2D1::ColorF(0, 0));
+  return true;
+}
+
+bool
+DrawTargetD2D::Init(ID3D10Texture2D *aTexture, SurfaceFormat aFormat)
+{
+  HRESULT hr;
+
+  mTexture = aTexture;
+  mFormat = aFormat;
+
+  if (!mTexture) {
+    gfxDebug() << "No valid texture for Direct2D draw target initialization.";
+    return false;
+  }
+
+  RefPtr<ID3D10Device> device;
+  mTexture->GetDevice(byRef(device));
+
+  hr = device->QueryInterface((ID3D10Device1**)byRef(mDevice));
+
+  if (FAILED(hr)) {
+    gfxWarning() << "Failed to get D3D10 device from texture.";
+    return false;
+  }
+
+  D3D10_TEXTURE2D_DESC desc;
+  mTexture->GetDesc(&desc);
+  mSize.width = desc.Width;
+  mSize.height = desc.Height;
+
+  return InitD2DRenderTarget();
+}
+
+// {0D398B49-AE7B-416F-B26D-EA3C137D1CF7}
+static const GUID sPrivateDataD2D = 
+{ 0xd398b49, 0xae7b, 0x416f, { 0xb2, 0x6d, 0xea, 0x3c, 0x13, 0x7d, 0x1c, 0xf7 } };
+
+bool
+DrawTargetD2D::InitD3D10Data()
+{
+  HRESULT hr;
+  
+  UINT privateDataSize;
+  privateDataSize = sizeof(mPrivateData);
+  hr = mDevice->GetPrivateData(sPrivateDataD2D, &privateDataSize, &mPrivateData);
+
+  if (SUCCEEDED(hr)) {
+      return true;
+  }
+
+  mPrivateData = new PrivateD3D10DataD2D;
+
+  decltype(D3D10CreateEffectFromMemory)* createD3DEffect;
+  HMODULE d3dModule = LoadLibraryW(L"d3d10_1.dll");
+  createD3DEffect = (decltype(D3D10CreateEffectFromMemory)*)
+      GetProcAddress(d3dModule, "D3D10CreateEffectFromMemory");
+
+  hr = createD3DEffect((void*)d2deffect, sizeof(d2deffect), 0, mDevice, nullptr, byRef(mPrivateData->mEffect));
+
+  if (FAILED(hr)) {
+    gfxWarning() << "Failed to initialize Direct2D required effects. Code: " << hr;
+    return false;
+  }
+
+  privateDataSize = sizeof(mPrivateData);
+  mDevice->SetPrivateData(sPrivateDataD2D, privateDataSize, &mPrivateData);
+
+  D3D10_INPUT_ELEMENT_DESC layout[] =
+  {
+    { "POSITION", 0, DXGI_FORMAT_R32G32_FLOAT, 0, 0, D3D10_INPUT_PER_VERTEX_DATA, 0 },
+  };
+  D3D10_PASS_DESC passDesc;
+  
+  mPrivateData->mEffect->GetTechniqueByName("SampleTexture")->GetPassByIndex(0)->GetDesc(&passDesc);
+
+  hr = mDevice->CreateInputLayout(layout,
+                                  sizeof(layout) / sizeof(D3D10_INPUT_ELEMENT_DESC),
+                                  passDesc.pIAInputSignature,
+                                  passDesc.IAInputSignatureSize,
+                                  byRef(mPrivateData->mInputLayout));
+
+  if (FAILED(hr)) {
+    gfxWarning() << "Failed to initialize Direct2D required InputLayout. Code: " << hr;
+    return false;
+  }
+
+  D3D10_SUBRESOURCE_DATA data;
+  Vertex vertices[] = { {0.0, 0.0}, {1.0, 0.0}, {0.0, 1.0}, {1.0, 1.0} };
+  data.pSysMem = vertices;
+  CD3D10_BUFFER_DESC bufferDesc(sizeof(vertices), D3D10_BIND_VERTEX_BUFFER);
+
+  hr = mDevice->CreateBuffer(&bufferDesc, &data, byRef(mPrivateData->mVB));
+
+  if (FAILED(hr)) {
+    gfxWarning() << "Failed to initialize Direct2D required VertexBuffer. Code: " << hr;
+    return false;
+  }
+
+  return true;
+}
+
+/*
+ * Private helpers
+ */
+uint32_t
+DrawTargetD2D::GetByteSize() const
+{
+  return mSize.width * mSize.height * BytesPerPixel(mFormat);
+}
+
+TemporaryRef<ID2D1Layer>
+DrawTargetD2D::GetCachedLayer()
+{
+  RefPtr<ID2D1Layer> layer;
+
+  if (mCurrentCachedLayer < 5) {
+    if (!mCachedLayers[mCurrentCachedLayer]) {
+      mRT->CreateLayer(byRef(mCachedLayers[mCurrentCachedLayer]));
+      mVRAMUsageDT += GetByteSize();
+    }
+    layer = mCachedLayers[mCurrentCachedLayer];
+  } else {
+    mRT->CreateLayer(byRef(layer));
+  }
+
+  mCurrentCachedLayer++;
+  return layer;
+}
+
+void
+DrawTargetD2D::PopCachedLayer(ID2D1RenderTarget *aRT)
+{
+  aRT->PopLayer();
+  mCurrentCachedLayer--;
+}
+
+bool
+DrawTargetD2D::InitD2DRenderTarget()
+{
+  if (!factory()) {
+    return false;
+  }
+
+  mRT = CreateRTForTexture(mTexture, mFormat);
+
+  if (!mRT) {
+    return false;
+  }
+
+  mRT->BeginDraw();
+
+  if (mFormat == SurfaceFormat::B8G8R8X8) {
+    mRT->SetTextAntialiasMode(D2D1_TEXT_ANTIALIAS_MODE_CLEARTYPE);
+  }
+
+  mVRAMUsageDT += GetByteSize();
+
+  return InitD3D10Data();
+}
+
+void
+DrawTargetD2D::PrepareForDrawing(ID2D1RenderTarget *aRT)
+{
+  if (!mClipsArePushed || aRT == mTempRT) {
+    if (mPushedClips.size()) {
+      // The transform of clips is relative to the world matrix, since we use the total
+      // transform for the clips, make the world matrix identity.
+      aRT->SetTransform(D2D1::IdentityMatrix());
+      if (aRT == mRT) {
+        mTransformDirty = true;
+        mClipsArePushed = true;
+      }
+      PushClipsToRT(aRT);
+    }
+  }
+  FlushTransformToRT();
+  MarkChanged();
+
+  if (aRT == mTempRT) {
+    mTempRT->SetTransform(D2DMatrix(mTransform));
+  }
+}
+
+void
+DrawTargetD2D::MarkChanged()
+{
+  if (mSnapshot) {
+    if (mSnapshot->hasOneRef()) {
+      // Just destroy it, since no-one else knows about it.
+      mSnapshot = nullptr;
+    } else {
+      mSnapshot->DrawTargetWillChange();
+      // The snapshot will no longer depend on this target.
+      MOZ_ASSERT(!mSnapshot);
+    }
+  }
+  if (mDependentTargets.size()) {
+    // Copy mDependentTargets since the Flush()es below will modify it.
+    TargetSet tmpTargets = mDependentTargets;
+    for (TargetSet::iterator iter = tmpTargets.begin();
+         iter != tmpTargets.end(); iter++) {
+      (*iter)->Flush();
+    }
+    // The Flush() should have broken all dependencies on this target.
+    MOZ_ASSERT(!mDependentTargets.size());
+  }
+}
+
+ID3D10BlendState*
+DrawTargetD2D::GetBlendStateForOperator(CompositionOp aOperator)
+{
+  size_t operatorIndex = static_cast<size_t>(aOperator);
+  if (mPrivateData->mBlendStates[operatorIndex]) {
+    return mPrivateData->mBlendStates[operatorIndex];
+  }
+
+  D3D10_BLEND_DESC desc;
+
+  memset(&desc, 0, sizeof(D3D10_BLEND_DESC));
+
+  desc.AlphaToCoverageEnable = FALSE;
+  desc.BlendEnable[0] = TRUE;
+  desc.RenderTargetWriteMask[0] = D3D10_COLOR_WRITE_ENABLE_ALL;
+  desc.BlendOp = desc.BlendOpAlpha = D3D10_BLEND_OP_ADD;
+
+  switch (aOperator) {
+  case CompositionOp::OP_ADD:
+    desc.SrcBlend = desc.SrcBlendAlpha = D3D10_BLEND_ONE;
+    desc.DestBlend = desc.DestBlendAlpha = D3D10_BLEND_ONE;
+    break;
+  case CompositionOp::OP_IN:
+    desc.SrcBlend = desc.SrcBlendAlpha = D3D10_BLEND_DEST_ALPHA;
+    desc.DestBlend = desc.DestBlendAlpha = D3D10_BLEND_ZERO;
+    break;
+  case CompositionOp::OP_OUT:
+    desc.SrcBlend = desc.SrcBlendAlpha = D3D10_BLEND_INV_DEST_ALPHA;
+    desc.DestBlend = desc.DestBlendAlpha = D3D10_BLEND_ZERO;
+    break;
+  case CompositionOp::OP_ATOP:
+    desc.SrcBlend = desc.SrcBlendAlpha = D3D10_BLEND_DEST_ALPHA;
+    desc.DestBlend = desc.DestBlendAlpha = D3D10_BLEND_INV_SRC_ALPHA;
+    break;
+  case CompositionOp::OP_DEST_IN:
+    desc.SrcBlend = desc.SrcBlendAlpha = D3D10_BLEND_ZERO;
+    desc.DestBlend = desc.DestBlendAlpha = D3D10_BLEND_SRC_ALPHA;
+    break;
+  case CompositionOp::OP_DEST_OUT:
+    desc.SrcBlend = desc.SrcBlendAlpha = D3D10_BLEND_ZERO;
+    desc.DestBlend = desc.DestBlendAlpha = D3D10_BLEND_INV_SRC_ALPHA;
+    break;
+  case CompositionOp::OP_DEST_ATOP:
+    desc.SrcBlend = desc.SrcBlendAlpha = D3D10_BLEND_INV_DEST_ALPHA;
+    desc.DestBlend = desc.DestBlendAlpha = D3D10_BLEND_SRC_ALPHA;
+    break;
+  case CompositionOp::OP_DEST_OVER:
+    desc.SrcBlend = desc.SrcBlendAlpha = D3D10_BLEND_INV_DEST_ALPHA;
+    desc.DestBlend = desc.DestBlendAlpha = D3D10_BLEND_ONE;
+    break;
+  case CompositionOp::OP_XOR:
+    desc.SrcBlend = desc.SrcBlendAlpha = D3D10_BLEND_INV_DEST_ALPHA;
+    desc.DestBlend = desc.DestBlendAlpha = D3D10_BLEND_INV_SRC_ALPHA;
+    break;
+  case CompositionOp::OP_SOURCE:
+    desc.SrcBlend = desc.SrcBlendAlpha = D3D10_BLEND_ONE;
+    desc.DestBlend = desc.DestBlendAlpha = D3D10_BLEND_ZERO;
+    break;
+  default:
+    desc.SrcBlend = desc.SrcBlendAlpha = D3D10_BLEND_ONE;
+    desc.DestBlend = desc.DestBlendAlpha = D3D10_BLEND_INV_SRC_ALPHA;
+  }
+  
+  mDevice->CreateBlendState(&desc, byRef(mPrivateData->mBlendStates[operatorIndex]));
+
+  return mPrivateData->mBlendStates[operatorIndex];
+}
+
+/* This function prepares the temporary RT for drawing and returns it when a
+ * drawing operation other than OVER is required.
+ */
+ID2D1RenderTarget*
+DrawTargetD2D::GetRTForOperation(CompositionOp aOperator, const Pattern &aPattern)
+{
+  if (aOperator == CompositionOp::OP_OVER && IsPatternSupportedByD2D(aPattern)) {
+    return mRT;
+  }
+
+  PopAllClips();
+
+  if (aOperator > CompositionOp::OP_XOR) {
+    mRT->Flush();
+  }
+
+  if (mTempRT) {
+    mTempRT->Clear(D2D1::ColorF(0, 0));
+    return mTempRT;
+  }
+
+  EnsureViews();
+
+  if (!mRTView || !mSRView) {
+    gfxDebug() << *this << ": Failed to get required views. Defaulting to CompositionOp::OP_OVER.";
+    return mRT;
+  }
+
+  mTempRT = CreateRTForTexture(mTempTexture, SurfaceFormat::B8G8R8A8);
+
+  if (!mTempRT) {
+    return mRT;
+  }
+
+  mVRAMUsageDT += GetByteSize();
+
+  mTempRT->BeginDraw();
+
+  mTempRT->Clear(D2D1::ColorF(0, 0));
+
+  return mTempRT;
+}
+
+/* This function blends back the content of a drawing operation (drawn to an
+ * empty surface with OVER, so the surface now contains the source operation
+ * contents) to the rendertarget using the requested composition operation.
+ * In order to respect clip for operations which are unbound by their mask,
+ * the old content of the surface outside the clipped area may be blended back
+ * to the surface.
+ */
+void
+DrawTargetD2D::FinalizeRTForOperation(CompositionOp aOperator, const Pattern &aPattern, const Rect &aBounds)
+{
+  if (aOperator == CompositionOp::OP_OVER && IsPatternSupportedByD2D(aPattern)) {
+    return;
+  }
+
+  if (!mTempRT) {
+    return;
+  }
+
+  PopClipsFromRT(mTempRT);
+
+  mRT->Flush();
+  mTempRT->Flush();
+
+  AutoSaveRestoreClippedOut restoreClippedOut(this);
+
+  bool needsWriteBack =
+    !IsOperatorBoundByMask(aOperator) && mPushedClips.size();
+
+  if (needsWriteBack) {
+    restoreClippedOut.Save();
+  }
+
+  ID3D10RenderTargetView *rtViews = mRTView;
+  mDevice->OMSetRenderTargets(1, &rtViews, nullptr);
+
+  UINT stride = sizeof(Vertex);
+  UINT offset = 0;
+  ID3D10Buffer *buff = mPrivateData->mVB;
+
+  mDevice->IASetPrimitiveTopology(D3D10_PRIMITIVE_TOPOLOGY_TRIANGLESTRIP);
+  mDevice->IASetVertexBuffers(0, 1, &buff, &stride, &offset);
+  mDevice->IASetInputLayout(mPrivateData->mInputLayout);
+
+  D3D10_VIEWPORT viewport;
+  viewport.MaxDepth = 1;
+  viewport.MinDepth = 0;
+  viewport.Height = mSize.height;
+  viewport.Width = mSize.width;
+  viewport.TopLeftX = 0;
+  viewport.TopLeftY = 0;
+
+  RefPtr<ID3D10Texture2D> tmpTexture;
+  RefPtr<ID3D10ShaderResourceView> mBckSRView;
+
+  mDevice->RSSetViewports(1, &viewport);
+  mPrivateData->mEffect->GetVariableByName("QuadDesc")->AsVector()->
+    SetFloatVector(ShaderConstantRectD3D10(-1.0f, 1.0f, 2.0f, -2.0f));
+
+  if (IsPatternSupportedByD2D(aPattern)) {
+    mPrivateData->mEffect->GetVariableByName("TexCoords")->AsVector()->
+      SetFloatVector(ShaderConstantRectD3D10(0, 0, 1.0f, 1.0f));
+    mPrivateData->mEffect->GetVariableByName("tex")->AsShaderResource()->SetResource(mSRView);
+
+    // Handle the case where we blend with the backdrop
+    if (aOperator > CompositionOp::OP_XOR) {
+      IntSize size = mSize;
+      SurfaceFormat format = mFormat;
+
+      CD3D10_TEXTURE2D_DESC desc(DXGIFormat(format), size.width, size.height, 1, 1);
+      desc.BindFlags = D3D10_BIND_RENDER_TARGET | D3D10_BIND_SHADER_RESOURCE;
+
+      HRESULT hr = mDevice->CreateTexture2D(&desc, nullptr, byRef(tmpTexture));
+      if (FAILED(hr)) {
+        gfxWarning() << "Failed to create temporary texture to hold surface data.";
+        return;
+      }
+
+      mDevice->CopyResource(tmpTexture, mTexture);
+      if (FAILED(hr)) {
+        gfxWarning() << *this << "Failed to create shader resource view for temp texture. Code: " << hr;
+        return;
+      }
+
+      DrawTargetD2D::Flush();
+
+      hr = mDevice->CreateShaderResourceView(tmpTexture, nullptr, byRef(mBckSRView));
+
+      if (FAILED(hr)) {
+        gfxWarning() << *this << "Failed to create shader resource view for temp texture. Code: " << hr;
+        return;
+      }
+
+      unsigned int compop = (unsigned int)aOperator - (unsigned int)CompositionOp::OP_XOR;
+      mPrivateData->mEffect->GetVariableByName("bcktex")->AsShaderResource()->SetResource(mBckSRView);
+      mPrivateData->mEffect->GetVariableByName("blendop")->AsScalar()->SetInt(compop);
+
+      if (aOperator > CompositionOp::OP_EXCLUSION)
+        mPrivateData->mEffect->GetTechniqueByName("SampleTextureForNonSeparableBlending")->
+          GetPassByIndex(0)->Apply(0);
+      else if (aOperator > CompositionOp::OP_COLOR_DODGE)
+        mPrivateData->mEffect->GetTechniqueByName("SampleTextureForSeparableBlending_2")->
+          GetPassByIndex(0)->Apply(0);
+      else
+        mPrivateData->mEffect->GetTechniqueByName("SampleTextureForSeparableBlending_1")->
+          GetPassByIndex(0)->Apply(0);
+    }
+    else {
+      mPrivateData->mEffect->GetTechniqueByName("SampleTexture")->GetPassByIndex(0)->Apply(0);
+    }
+
+  } else if (aPattern.GetType() == PatternType::RADIAL_GRADIENT) {
+    const RadialGradientPattern *pat = static_cast<const RadialGradientPattern*>(&aPattern);
+
+    if (pat->mCenter1 == pat->mCenter2 && pat->mRadius1 == pat->mRadius2) {
+      // Draw nothing!
+      return;
+    }
+
+    mPrivateData->mEffect->GetVariableByName("mask")->AsShaderResource()->SetResource(mSRView);
+
+    SetupEffectForRadialGradient(pat);
+  }
+
+  mDevice->OMSetBlendState(GetBlendStateForOperator(aOperator), nullptr, 0xffffffff);
+  
+  SetScissorToRect(nullptr);
+  mDevice->Draw(4, 0);
+}
+
+static D2D1_RECT_F
+IntersectRect(const D2D1_RECT_F& aRect1, const D2D1_RECT_F& aRect2)
+{
+  D2D1_RECT_F result;
+  result.left = max(aRect1.left, aRect2.left);
+  result.top = max(aRect1.top, aRect2.top);
+  result.right = min(aRect1.right, aRect2.right);
+  result.bottom = min(aRect1.bottom, aRect2.bottom);
+
+  result.right = max(result.right, result.left);
+  result.bottom = max(result.bottom, result.top);
+
+  return result;
+}
+
+bool
+DrawTargetD2D::GetDeviceSpaceClipRect(D2D1_RECT_F& aClipRect, bool& aIsPixelAligned)
+{
+  if (!mPushedClips.size()) {
+    return false;
+  }
+
+  std::vector<DrawTargetD2D::PushedClip>::iterator iter = mPushedClips.begin();
+  if (iter->mPath) {
+    return false;
+  }
+  aClipRect = iter->mBounds;
+  aIsPixelAligned = iter->mIsPixelAligned;
+
+  iter++;
+  for (;iter != mPushedClips.end(); iter++) {
+    if (iter->mPath) {
+      return false;
+    }
+    aClipRect = IntersectRect(aClipRect, iter->mBounds);
+    if (!iter->mIsPixelAligned) {
+      aIsPixelAligned = false;
+    }
+  }
+  return true;
+}
+
+TemporaryRef<ID2D1Geometry>
+DrawTargetD2D::GetClippedGeometry(IntRect *aClipBounds)
+{
+  if (mCurrentClippedGeometry) {
+    *aClipBounds = mCurrentClipBounds;
+    return mCurrentClippedGeometry;
+  }
+
+  mCurrentClipBounds = IntRect(IntPoint(0, 0), mSize);
+
+  // if pathGeom is null then pathRect represents the path.
+  RefPtr<ID2D1Geometry> pathGeom;
+  D2D1_RECT_F pathRect;
+  bool pathRectIsAxisAligned = false;
+  std::vector<DrawTargetD2D::PushedClip>::iterator iter = mPushedClips.begin();
+  
+  if (iter->mPath) {
+    pathGeom = GetTransformedGeometry(iter->mPath->GetGeometry(), iter->mTransform);
+  } else {
+    pathRect = iter->mBounds;
+    pathRectIsAxisAligned = iter->mIsPixelAligned;
+  }
+
+  iter++;
+  for (;iter != mPushedClips.end(); iter++) {
+    // Do nothing but add it to the current clip bounds.
+    if (!iter->mPath && iter->mIsPixelAligned) {
+      mCurrentClipBounds.IntersectRect(mCurrentClipBounds,
+        IntRect(int32_t(iter->mBounds.left), int32_t(iter->mBounds.top),
+                int32_t(iter->mBounds.right - iter->mBounds.left),
+                int32_t(iter->mBounds.bottom - iter->mBounds.top)));
+      continue;
+    }
+
+    if (!pathGeom) {
+      if (pathRectIsAxisAligned) {
+        mCurrentClipBounds.IntersectRect(mCurrentClipBounds,
+          IntRect(int32_t(pathRect.left), int32_t(pathRect.top),
+                  int32_t(pathRect.right - pathRect.left),
+                  int32_t(pathRect.bottom - pathRect.top)));
+      }
+      if (iter->mPath) {
+        // See if pathRect needs to go into the path geometry.
+        if (!pathRectIsAxisAligned) {
+          pathGeom = ConvertRectToGeometry(pathRect);
+        } else {
+          pathGeom = GetTransformedGeometry(iter->mPath->GetGeometry(), iter->mTransform);
+        }
+      } else {
+        pathRect = IntersectRect(pathRect, iter->mBounds);
+        pathRectIsAxisAligned = false;
+        continue;
+      }
+    }
+
+    RefPtr<ID2D1PathGeometry> newGeom;
+    factory()->CreatePathGeometry(byRef(newGeom));
+
+    RefPtr<ID2D1GeometrySink> currentSink;
+    newGeom->Open(byRef(currentSink));
+
+    if (iter->mPath) {
+      pathGeom->CombineWithGeometry(iter->mPath->GetGeometry(), D2D1_COMBINE_MODE_INTERSECT,
+                                    iter->mTransform, currentSink);
+    } else {
+      RefPtr<ID2D1Geometry> rectGeom = ConvertRectToGeometry(iter->mBounds);
+      pathGeom->CombineWithGeometry(rectGeom, D2D1_COMBINE_MODE_INTERSECT,
+                                    D2D1::IdentityMatrix(), currentSink);
+    }
+
+    currentSink->Close();
+
+    pathGeom = newGeom.forget();
+  }
+
+  // For now we need mCurrentClippedGeometry to always be non-nullptr. This
+  // method might seem a little strange but it is just fine, if pathGeom is
+  // nullptr pathRect will always still contain 1 clip unaccounted for
+  // regardless of mCurrentClipBounds.
+  if (!pathGeom) {
+    pathGeom = ConvertRectToGeometry(pathRect);
+  }
+  mCurrentClippedGeometry = pathGeom.forget();
+  *aClipBounds = mCurrentClipBounds;
+  return mCurrentClippedGeometry;
+}
+
+TemporaryRef<ID2D1RenderTarget>
+DrawTargetD2D::CreateRTForTexture(ID3D10Texture2D *aTexture, SurfaceFormat aFormat)
+{
+  HRESULT hr;
+
+  RefPtr<IDXGISurface> surface;
+  RefPtr<ID2D1RenderTarget> rt;
+
+  hr = aTexture->QueryInterface((IDXGISurface**)byRef(surface));
+
+  if (FAILED(hr)) {
+    gfxWarning() << "Failed to QI texture to surface.";
+    return nullptr;
+  }
+
+  D3D10_TEXTURE2D_DESC desc;
+  aTexture->GetDesc(&desc);
+
+  D2D1_ALPHA_MODE alphaMode = D2D1_ALPHA_MODE_PREMULTIPLIED;
+
+  if (aFormat == SurfaceFormat::B8G8R8X8 && aTexture == mTexture) {
+    alphaMode = D2D1_ALPHA_MODE_IGNORE;
+  }
+
+  D2D1_RENDER_TARGET_PROPERTIES props =
+    D2D1::RenderTargetProperties(D2D1_RENDER_TARGET_TYPE_DEFAULT, D2D1::PixelFormat(desc.Format, alphaMode));
+  hr = factory()->CreateDxgiSurfaceRenderTarget(surface, props, byRef(rt));
+
+  if (FAILED(hr)) {
+    gfxWarning() << "Failed to create D2D render target for texture.";
+    return nullptr;
+  }
+
+  return rt;
+}
+
+void
+DrawTargetD2D::EnsureViews()
+{
+  if (mTempTexture && mSRView && mRTView) {
+    return;
+  }
+
+  HRESULT hr;
+
+  CD3D10_TEXTURE2D_DESC desc(DXGI_FORMAT_B8G8R8A8_UNORM,
+                             mSize.width,
+                             mSize.height,
+                             1, 1);
+  desc.BindFlags = D3D10_BIND_RENDER_TARGET | D3D10_BIND_SHADER_RESOURCE;
+
+  hr = mDevice->CreateTexture2D(&desc, nullptr, byRef(mTempTexture));
+
+  if (FAILED(hr)) {
+    gfxWarning() << *this << "Failed to create temporary texture for rendertarget. Size: "
+      << mSize << " Code: " << hr;
+    return;
+  }
+
+  hr = mDevice->CreateShaderResourceView(mTempTexture, nullptr, byRef(mSRView));
+
+  if (FAILED(hr)) {
+    gfxWarning() << *this << "Failed to create shader resource view for temp texture. Code: " << hr;
+    return;
+  }
+
+  hr = mDevice->CreateRenderTargetView(mTexture, nullptr, byRef(mRTView));
+
+  if (FAILED(hr)) {
+    gfxWarning() << *this << "Failed to create rendertarget view for temp texture. Code: " << hr;
+  }
+}
+
+void
+DrawTargetD2D::PopAllClips()
+{
+  if (mClipsArePushed) {
+    PopClipsFromRT(mRT);
+  
+    mClipsArePushed = false;
+  }
+}
+
+void
+DrawTargetD2D::PushClipsToRT(ID2D1RenderTarget *aRT)
+{
+  for (std::vector<PushedClip>::iterator iter = mPushedClips.begin();
+        iter != mPushedClips.end(); iter++) {
+    if (iter->mLayer) {
+      PushD2DLayer(aRT, iter->mPath->mGeometry, iter->mLayer, iter->mTransform);
+    } else {
+      aRT->PushAxisAlignedClip(iter->mBounds, iter->mIsPixelAligned ? D2D1_ANTIALIAS_MODE_ALIASED : D2D1_ANTIALIAS_MODE_PER_PRIMITIVE);
+    }
+  }
+}
+
+void
+DrawTargetD2D::PopClipsFromRT(ID2D1RenderTarget *aRT)
+{
+  for (int i = mPushedClips.size() - 1; i >= 0; i--) {
+    if (mPushedClips[i].mLayer) {
+      aRT->PopLayer();
+    } else {
+      aRT->PopAxisAlignedClip();
+    }
+  }
+}
+
+void
+DrawTargetD2D::EnsureClipMaskTexture(IntRect *aBounds)
+{
+  if (mCurrentClipMaskTexture || mPushedClips.empty()) {
+    *aBounds = mCurrentClipBounds;
+    return;
+  }
+  
+  RefPtr<ID2D1Geometry> geometry = GetClippedGeometry(aBounds);
+
+  CD3D10_TEXTURE2D_DESC desc(DXGI_FORMAT_A8_UNORM,
+                             mSize.width,
+                             mSize.height,
+                             1, 1);
+  desc.BindFlags = D3D10_BIND_RENDER_TARGET | D3D10_BIND_SHADER_RESOURCE;
+
+  HRESULT hr = mDevice->CreateTexture2D(&desc, nullptr, byRef(mCurrentClipMaskTexture));
+
+  if (FAILED(hr)) {
+    gfxWarning() << "Failed to create texture for ClipMask!";
+    return;
+  }
+
+  RefPtr<ID2D1RenderTarget> rt = CreateRTForTexture(mCurrentClipMaskTexture, SurfaceFormat::A8);
+
+  if (!rt) {
+    gfxWarning() << "Failed to create RT for ClipMask!";
+    return;
+  }
+  
+  RefPtr<ID2D1SolidColorBrush> brush;
+  rt->CreateSolidColorBrush(D2D1::ColorF(D2D1::ColorF::White), byRef(brush));
+    
+  rt->BeginDraw();
+  rt->Clear(D2D1::ColorF(0, 0));
+  rt->FillGeometry(geometry, brush);
+  rt->EndDraw();
+}
+
+bool
+DrawTargetD2D::FillGlyphsManual(ScaledFontDWrite *aFont,
+                                const GlyphBuffer &aBuffer,
+                                const Color &aColor,
+                                IDWriteRenderingParams *aParams,
+                                const DrawOptions &aOptions)
+{
+  HRESULT hr;
+
+  RefPtr<IDWriteRenderingParams> params;
+
+  if (aParams) {
+    params = aParams;
+  } else {
+    mRT->GetTextRenderingParams(byRef(params));
+  }
+
+  DWRITE_RENDERING_MODE renderMode = DWRITE_RENDERING_MODE_DEFAULT;
+  if (params) {
+    hr = aFont->mFontFace->GetRecommendedRenderingMode(
+      (FLOAT)aFont->GetSize(),
+      1.0f,
+      DWRITE_MEASURING_MODE_NATURAL,
+      params,
+      &renderMode);
+    if (FAILED(hr)) {
+      // this probably never happens, but let's play it safe
+      renderMode = DWRITE_RENDERING_MODE_DEFAULT;
+    }
+  }
+
+  // Deal with rendering modes CreateGlyphRunAnalysis doesn't accept.
+  switch (renderMode) {
+  case DWRITE_RENDERING_MODE_ALIASED:
+    // ClearType texture creation will fail in this mode, so bail out
+    return false;
+  case DWRITE_RENDERING_MODE_DEFAULT:
+    // As per DWRITE_RENDERING_MODE documentation, pick Natural for font
+    // sizes under 16 ppem
+    if (aFont->GetSize() < 16.0f) {
+      renderMode = DWRITE_RENDERING_MODE_CLEARTYPE_NATURAL;
+    } else {
+      renderMode = DWRITE_RENDERING_MODE_CLEARTYPE_NATURAL_SYMMETRIC;
+    }
+    break;
+  case DWRITE_RENDERING_MODE_OUTLINE:
+    renderMode = DWRITE_RENDERING_MODE_CLEARTYPE_NATURAL_SYMMETRIC;
+    break;
+  default:
+    break;
+  }
+
+  DWRITE_MEASURING_MODE measureMode =
+    renderMode <= DWRITE_RENDERING_MODE_CLEARTYPE_GDI_CLASSIC ? DWRITE_MEASURING_MODE_GDI_CLASSIC :
+    renderMode == DWRITE_RENDERING_MODE_CLEARTYPE_GDI_NATURAL ? DWRITE_MEASURING_MODE_GDI_NATURAL :
+    DWRITE_MEASURING_MODE_NATURAL;
+
+  DWRITE_MATRIX mat = DWriteMatrixFromMatrix(mTransform);
+
+  AutoDWriteGlyphRun autoRun;
+  DWriteGlyphRunFromGlyphs(aBuffer, aFont, &autoRun);
+
+  RefPtr<IDWriteGlyphRunAnalysis> analysis;
+  hr = GetDWriteFactory()->CreateGlyphRunAnalysis(&autoRun, 1.0f, &mat,
+                                                  renderMode, measureMode, 0, 0, byRef(analysis));
+
+  if (FAILED(hr)) {
+    return false;
+  }
+
+  RECT bounds;
+  hr = analysis->GetAlphaTextureBounds(DWRITE_TEXTURE_CLEARTYPE_3x1, &bounds);
+
+  if (bounds.bottom <= bounds.top || bounds.right <= bounds.left) {
+    // DWrite seems to do this sometimes. I'm not 100% sure why. See bug 758980.
+    gfxDebug() << "Empty alpha texture bounds! Falling back to regular drawing.";
+    return false;
+  }
+  IntRect rectBounds(bounds.left, bounds.top, bounds.right - bounds.left, bounds.bottom - bounds.top);
+  IntRect surfBounds(IntPoint(0, 0), mSize);
+
+  rectBounds.IntersectRect(rectBounds, surfBounds);
+
+  if (rectBounds.IsEmpty()) {
+    // Nothing to do.
+    return true;
+  }
+
+  RefPtr<ID3D10Texture2D> tex = CreateTextureForAnalysis(analysis, rectBounds);
+
+  if (!tex) {
+    return false;
+  }
+
+  RefPtr<ID3D10ShaderResourceView> srView;
+  hr = mDevice->CreateShaderResourceView(tex, nullptr, byRef(srView));
+
+  if (FAILED(hr)) {
+    return false;
+  }
+
+  MarkChanged();
+
+  // Prepare our background texture for drawing.
+  PopAllClips();
+  mRT->Flush();
+
+  SetupStateForRendering();
+
+  ID3D10EffectTechnique *technique = mPrivateData->mEffect->GetTechniqueByName("SampleTextTexture");
+
+  mPrivateData->mEffect->GetVariableByName("QuadDesc")->AsVector()->
+    SetFloatVector(ShaderConstantRectD3D10(-1.0f + ((Float(rectBounds.x) / mSize.width) * 2.0f),
+                                           1.0f - (Float(rectBounds.y) / mSize.height * 2.0f),
+                                           (Float(rectBounds.width) / mSize.width) * 2.0f,
+                                           (-Float(rectBounds.height) / mSize.height) * 2.0f));
+  mPrivateData->mEffect->GetVariableByName("TexCoords")->AsVector()->
+    SetFloatVector(ShaderConstantRectD3D10(0, 0, 1.0f, 1.0f));
+  FLOAT color[4] = { aColor.r, aColor.g, aColor.b, aColor.a };
+  mPrivateData->mEffect->GetVariableByName("TextColor")->AsVector()->
+    SetFloatVector(color);
+  
+  mPrivateData->mEffect->GetVariableByName("tex")->AsShaderResource()->SetResource(srView);
+
+  bool isMasking = false;
+
+  IntRect clipBoundsStorage;
+  IntRect *clipBounds = nullptr;
+
+  if (!mPushedClips.empty()) {
+    clipBounds = &clipBoundsStorage;
+    RefPtr<ID2D1Geometry> geom = GetClippedGeometry(clipBounds);
+
+    RefPtr<ID2D1RectangleGeometry> rectGeom;
+    factory()->CreateRectangleGeometry(D2D1::RectF(Float(rectBounds.x),
+                                                   Float(rectBounds.y),
+                                                   Float(rectBounds.width + rectBounds.x),
+                                                   Float(rectBounds.height + rectBounds.y)),
+                                       byRef(rectGeom));
+
+    D2D1_GEOMETRY_RELATION relation;
+    if (FAILED(geom->CompareWithGeometry(rectGeom, D2D1::IdentityMatrix(), &relation)) ||
+        relation != D2D1_GEOMETRY_RELATION_CONTAINS ) {
+      isMasking = true;
+    }        
+  }
+  
+  if (isMasking) {
+    clipBounds = &clipBoundsStorage;
+    EnsureClipMaskTexture(clipBounds);
+
+    RefPtr<ID3D10ShaderResourceView> srViewMask;
+    hr = mDevice->CreateShaderResourceView(mCurrentClipMaskTexture, nullptr, byRef(srViewMask));
+
+    if (FAILED(hr)) {
+      return false;
+    }
+
+    mPrivateData->mEffect->GetVariableByName("mask")->AsShaderResource()->SetResource(srViewMask);
+
+    mPrivateData->mEffect->GetVariableByName("MaskTexCoords")->AsVector()->
+      SetFloatVector(ShaderConstantRectD3D10(Float(rectBounds.x) / mSize.width, Float(rectBounds.y) / mSize.height,
+                                             Float(rectBounds.width) / mSize.width, Float(rectBounds.height) / mSize.height));
+
+    technique->GetPassByIndex(1)->Apply(0);
+  } else {
+    technique->GetPassByIndex(0)->Apply(0);
+  }  
+
+  RefPtr<ID3D10RenderTargetView> rtView;
+  ID3D10RenderTargetView *rtViews;
+  mDevice->CreateRenderTargetView(mTexture, nullptr, byRef(rtView));
+
+  rtViews = rtView;
+  mDevice->OMSetRenderTargets(1, &rtViews, nullptr);
+  SetScissorToRect(clipBounds);
+  mDevice->Draw(4, 0);
+  return true;
+}
+
+TemporaryRef<ID2D1Brush>
+DrawTargetD2D::CreateBrushForPattern(const Pattern &aPattern, Float aAlpha)
+{
+  if (!IsPatternSupportedByD2D(aPattern)) {
+    RefPtr<ID2D1SolidColorBrush> colBrush;
+    mRT->CreateSolidColorBrush(D2D1::ColorF(1.0f, 1.0f, 1.0f, 1.0f), byRef(colBrush));
+    return colBrush;
+  }
+
+  if (aPattern.GetType() == PatternType::COLOR) {
+    RefPtr<ID2D1SolidColorBrush> colBrush;
+    Color color = static_cast<const ColorPattern*>(&aPattern)->mColor;
+    mRT->CreateSolidColorBrush(D2D1::ColorF(color.r, color.g,
+                                            color.b, color.a),
+                               D2D1::BrushProperties(aAlpha),
+                               byRef(colBrush));
+    return colBrush;
+  } else if (aPattern.GetType() == PatternType::LINEAR_GRADIENT) {
+    RefPtr<ID2D1LinearGradientBrush> gradBrush;
+    const LinearGradientPattern *pat =
+      static_cast<const LinearGradientPattern*>(&aPattern);
+
+    GradientStopsD2D *stops = static_cast<GradientStopsD2D*>(pat->mStops.get());
+
+    if (!stops) {
+      gfxDebug() << "No stops specified for gradient pattern.";
+      return nullptr;
+    }
+
+    if (pat->mBegin == pat->mEnd) {
+      RefPtr<ID2D1SolidColorBrush> colBrush;
+      uint32_t stopCount = stops->mStopCollection->GetGradientStopCount();
+      vector<D2D1_GRADIENT_STOP> d2dStops(stopCount);
+      stops->mStopCollection->GetGradientStops(&d2dStops.front(), stopCount);
+      mRT->CreateSolidColorBrush(d2dStops.back().color,
+                                 D2D1::BrushProperties(aAlpha),
+                                 byRef(colBrush));
+      return colBrush;
+    }
+
+    mRT->CreateLinearGradientBrush(D2D1::LinearGradientBrushProperties(D2DPoint(pat->mBegin),
+                                                                       D2DPoint(pat->mEnd)),
+                                   D2D1::BrushProperties(aAlpha, D2DMatrix(pat->mMatrix)),
+                                   stops->mStopCollection,
+                                   byRef(gradBrush));
+    return gradBrush;
+  } else if (aPattern.GetType() == PatternType::RADIAL_GRADIENT) {
+    RefPtr<ID2D1RadialGradientBrush> gradBrush;
+    const RadialGradientPattern *pat =
+      static_cast<const RadialGradientPattern*>(&aPattern);
+
+    GradientStopsD2D *stops = static_cast<GradientStopsD2D*>(pat->mStops.get());
+
+    if (!stops) {
+      gfxDebug() << "No stops specified for gradient pattern.";
+      return nullptr;
+    }
+
+    // This will not be a complex radial gradient brush.
+    mRT->CreateRadialGradientBrush(
+      D2D1::RadialGradientBrushProperties(D2DPoint(pat->mCenter2),
+                                          D2DPoint(pat->mCenter1 - pat->mCenter2),
+                                          pat->mRadius2, pat->mRadius2),
+      D2D1::BrushProperties(aAlpha, D2DMatrix(pat->mMatrix)),
+      stops->mStopCollection,
+      byRef(gradBrush));
+
+    return gradBrush;
+  } else if (aPattern.GetType() == PatternType::SURFACE) {
+    RefPtr<ID2D1BitmapBrush> bmBrush;
+    const SurfacePattern *pat =
+      static_cast<const SurfacePattern*>(&aPattern);
+
+    if (!pat->mSurface) {
+      gfxDebug() << "No source surface specified for surface pattern";
+      return nullptr;
+    }
+
+    RefPtr<ID2D1Bitmap> bitmap;
+
+    Matrix mat = pat->mMatrix;
+    
+    switch (pat->mSurface->GetType()) {
+    case SurfaceType::D2D1_BITMAP:
+      {
+        SourceSurfaceD2D *surf = static_cast<SourceSurfaceD2D*>(pat->mSurface.get());
+
+        bitmap = surf->mBitmap;
+
+        if (!bitmap) {
+          return nullptr;
+        }
+      }
+      break;
+    case SurfaceType::D2D1_DRAWTARGET:
+      {
+        SourceSurfaceD2DTarget *surf =
+          static_cast<SourceSurfaceD2DTarget*>(pat->mSurface.get());
+        bitmap = surf->GetBitmap(mRT);
+        AddDependencyOnSource(surf);
+      }
+      break;
+    default:
+      {
+        RefPtr<DataSourceSurface> dataSurf = pat->mSurface->GetDataSurface();
+        if (!dataSurf) {
+          gfxWarning() << "Invalid surface type.";
+          return nullptr;
+        }
+
+        bitmap = CreatePartialBitmapForSurface(dataSurf, mTransform, mSize, pat->mExtendMode, mat, mRT); 
+        if (!bitmap) {
+          return nullptr;
+        }
+      }
+      break;
+    }
+    
+    mRT->CreateBitmapBrush(bitmap,
+                           D2D1::BitmapBrushProperties(D2DExtend(pat->mExtendMode),
+                                                       D2DExtend(pat->mExtendMode),
+                                                       D2DFilter(pat->mFilter)),
+                           D2D1::BrushProperties(aAlpha, D2DMatrix(mat)),
+                           byRef(bmBrush));
+
+    return bmBrush;
+  }
+
+  gfxWarning() << "Invalid pattern type detected.";
+  return nullptr;
+}
+
+TemporaryRef<ID3D10Texture2D>
+DrawTargetD2D::CreateGradientTexture(const GradientStopsD2D *aStops)
+{
+  CD3D10_TEXTURE2D_DESC desc(DXGI_FORMAT_B8G8R8A8_UNORM, 4096, 1, 1, 1);
+
+  std::vector<D2D1_GRADIENT_STOP> rawStops;
+  rawStops.resize(aStops->mStopCollection->GetGradientStopCount());
+  aStops->mStopCollection->GetGradientStops(&rawStops.front(), rawStops.size());
+
+  std::vector<unsigned char> textureData;
+  textureData.resize(4096 * 4);
+  unsigned char *texData = &textureData.front();
+
+  float prevColorPos = 0;
+  float nextColorPos = 1.0f;
+  D2D1_COLOR_F prevColor = rawStops[0].color;
+  D2D1_COLOR_F nextColor = prevColor;
+
+  if (rawStops.size() >= 2) {
+    nextColor = rawStops[1].color;
+    nextColorPos = rawStops[1].position;
+  }
+
+  uint32_t stopPosition = 2;
+
+  // Not the most optimized way but this will do for now.
+  for (int i = 0; i < 4096; i++) {
+    // The 4095 seems a little counter intuitive, but we want the gradient
+    // color at offset 0 at the first pixel, and at offset 1.0f at the last
+    // pixel.
+    float pos = float(i) / 4095;
+
+    while (pos > nextColorPos) {
+      prevColor = nextColor;
+      prevColorPos = nextColorPos;
+      if (rawStops.size() > stopPosition) {
+        nextColor = rawStops[stopPosition].color;
+        nextColorPos = rawStops[stopPosition++].position;
+      } else {
+        nextColorPos = 1.0f;
+      }
+    }
+
+    float interp;
+    
+    if (nextColorPos != prevColorPos) {
+      interp = (pos - prevColorPos) / (nextColorPos - prevColorPos);
+    } else {
+      interp = 0;
+    }
+
+    Color newColor(prevColor.r + (nextColor.r - prevColor.r) * interp,
+                    prevColor.g + (nextColor.g - prevColor.g) * interp,
+                    prevColor.b + (nextColor.b - prevColor.b) * interp,
+                    prevColor.a + (nextColor.a - prevColor.a) * interp);
+
+    texData[i * 4] = (char)(255.0f * newColor.b);
+    texData[i * 4 + 1] = (char)(255.0f * newColor.g);
+    texData[i * 4 + 2] = (char)(255.0f * newColor.r);
+    texData[i * 4 + 3] = (char)(255.0f * newColor.a);
+  }
+
+  D3D10_SUBRESOURCE_DATA data;
+  data.pSysMem = &textureData.front();
+  data.SysMemPitch = 4096 * 4;
+
+  RefPtr<ID3D10Texture2D> tex;
+  mDevice->CreateTexture2D(&desc, &data, byRef(tex));
+
+  return tex;
+}
+
+TemporaryRef<ID3D10Texture2D>
+DrawTargetD2D::CreateTextureForAnalysis(IDWriteGlyphRunAnalysis *aAnalysis, const IntRect &aBounds)
+{
+  HRESULT hr;
+
+  uint32_t bufferSize = aBounds.width * aBounds.height * 3;
+
+  RECT bounds;
+  bounds.left = aBounds.x;
+  bounds.top = aBounds.y;
+  bounds.right = aBounds.x + aBounds.width;
+  bounds.bottom = aBounds.y + aBounds.height;
+
+  // Add one byte so we can safely read a 32-bit int when copying the last
+  // 3 bytes.
+  BYTE *texture = new BYTE[bufferSize + 1];
+  hr = aAnalysis->CreateAlphaTexture(DWRITE_TEXTURE_CLEARTYPE_3x1, &bounds, texture, bufferSize);
+
+  if (FAILED(hr)) {
+    delete [] texture;
+    return nullptr;
+  }
+
+  int alignedBufferSize = aBounds.width * aBounds.height * 4;
+
+  // Create a one-off immutable texture from system memory.
+  BYTE *alignedTextureData = new BYTE[alignedBufferSize];
+  for (int y = 0; y < aBounds.height; y++) {
+    for (int x = 0; x < aBounds.width; x++) {
+      // Copy 3 Bpp source to 4 Bpp destination memory used for
+      // texture creation. D3D10 has no 3 Bpp texture format we can
+      // use.
+      //
+      // Since we don't care what ends up in the alpha pixel of the
+      // destination, therefor we can simply copy a normal 32 bit
+      // integer each time, filling the alpha pixel of the destination
+      // with the first subpixel of the next pixel from the source.
+      *((int*)(alignedTextureData + (y * aBounds.width + x) * 4)) =
+        *((int*)(texture + (y * aBounds.width + x) * 3));
+    }
+  }
+
+  D3D10_SUBRESOURCE_DATA data;
+  
+  CD3D10_TEXTURE2D_DESC desc(DXGI_FORMAT_B8G8R8A8_UNORM,
+                             aBounds.width, aBounds.height,
+                             1, 1);
+  desc.Usage = D3D10_USAGE_IMMUTABLE;
+
+  data.SysMemPitch = aBounds.width * 4;
+  data.pSysMem = alignedTextureData;
+
+  RefPtr<ID3D10Texture2D> tex;
+  hr = mDevice->CreateTexture2D(&desc, &data, byRef(tex));
+	
+  delete [] alignedTextureData;
+  delete [] texture;
+
+  if (FAILED(hr)) {
+    return nullptr;
+  }
+
+  return tex;
+}
+
+void
+DrawTargetD2D::SetupEffectForRadialGradient(const RadialGradientPattern *aPattern)
+{
+  mPrivateData->mEffect->GetTechniqueByName("SampleRadialGradient")->GetPassByIndex(0)->Apply(0);
+  mPrivateData->mEffect->GetVariableByName("MaskTexCoords")->AsVector()->
+    SetFloatVector(ShaderConstantRectD3D10(0, 0, 1.0f, 1.0f));
+
+  float dimensions[] = { float(mSize.width), float(mSize.height), 0, 0 };
+  mPrivateData->mEffect->GetVariableByName("dimensions")->AsVector()->
+    SetFloatVector(dimensions);
+
+  const GradientStopsD2D *stops =
+    static_cast<const GradientStopsD2D*>(aPattern->mStops.get());
+
+  RefPtr<ID3D10Texture2D> tex = CreateGradientTexture(stops);
+
+  RefPtr<ID3D10ShaderResourceView> srView;
+  mDevice->CreateShaderResourceView(tex, nullptr, byRef(srView));
+
+  mPrivateData->mEffect->GetVariableByName("tex")->AsShaderResource()->SetResource(srView);
+
+  Point dc = aPattern->mCenter2 - aPattern->mCenter1;
+  float dr = aPattern->mRadius2 - aPattern->mRadius1;
+
+  float diffv[] = { dc.x, dc.y, dr, 0 };
+  mPrivateData->mEffect->GetVariableByName("diff")->AsVector()->
+    SetFloatVector(diffv);
+
+  float center1[] = { aPattern->mCenter1.x, aPattern->mCenter1.y, dr, 0 };
+  mPrivateData->mEffect->GetVariableByName("center1")->AsVector()->
+    SetFloatVector(center1);
+
+  mPrivateData->mEffect->GetVariableByName("radius1")->AsScalar()->
+    SetFloat(aPattern->mRadius1);
+  mPrivateData->mEffect->GetVariableByName("sq_radius1")->AsScalar()->
+    SetFloat(pow(aPattern->mRadius1, 2));
+
+  Matrix invTransform = mTransform;
+
+  if (!invTransform.Invert()) {
+    // Bail if the matrix is singular.
+    return;
+  }
+  float matrix[] = { invTransform._11, invTransform._12, 0, 0,
+                      invTransform._21, invTransform._22, 0, 0,
+                      invTransform._31, invTransform._32, 1.0f, 0,
+                      0, 0, 0, 1.0f };
+
+  mPrivateData->mEffect->GetVariableByName("DeviceSpaceToUserSpace")->
+    AsMatrix()->SetMatrix(matrix);
+
+  float A = dc.x * dc.x + dc.y * dc.y - dr * dr;
+
+  uint32_t offset = 0;
+  switch (stops->mStopCollection->GetExtendMode()) {
+  case D2D1_EXTEND_MODE_WRAP:
+    offset = 1;
+    break;
+  case D2D1_EXTEND_MODE_MIRROR:
+    offset = 2;
+    break;
+  default:
+    gfxWarning() << "This shouldn't happen! Invalid extend mode for gradient stops.";
+  }
+
+  if (A == 0) {
+    mPrivateData->mEffect->GetTechniqueByName("SampleRadialGradient")->
+      GetPassByIndex(offset * 2 + 1)->Apply(0);
+  } else {
+    mPrivateData->mEffect->GetVariableByName("A")->AsScalar()->SetFloat(A);
+    mPrivateData->mEffect->GetTechniqueByName("SampleRadialGradient")->
+      GetPassByIndex(offset * 2)->Apply(0);
+  }
+}
+
+void
+DrawTargetD2D::SetupStateForRendering()
+{
+  UINT stride = sizeof(Vertex);
+  UINT offset = 0;
+  ID3D10Buffer *buff = mPrivateData->mVB;
+
+  mDevice->IASetPrimitiveTopology(D3D10_PRIMITIVE_TOPOLOGY_TRIANGLESTRIP);
+  mDevice->IASetVertexBuffers(0, 1, &buff, &stride, &offset);
+  mDevice->IASetInputLayout(mPrivateData->mInputLayout);
+
+  D3D10_VIEWPORT viewport;
+  viewport.MaxDepth = 1;
+  viewport.MinDepth = 0;
+  viewport.Height = mSize.height;
+  viewport.Width = mSize.width;
+  viewport.TopLeftX = 0;
+  viewport.TopLeftY = 0;
+
+  mDevice->RSSetViewports(1, &viewport);
+}
+
+ID2D1Factory*
+DrawTargetD2D::factory()
+{
+  if (mFactory) {
+    return mFactory;
+  }
+
+  D2D1CreateFactoryFunc createD2DFactory;
+  HMODULE d2dModule = LoadLibraryW(L"d2d1.dll");
+  createD2DFactory = (D2D1CreateFactoryFunc)
+      GetProcAddress(d2dModule, "D2D1CreateFactory");
+
+  if (!createD2DFactory) {
+    gfxWarning() << "Failed to locate D2D1CreateFactory function.";
+    return nullptr;
+  }
+
+  D2D1_FACTORY_OPTIONS options;
+#ifdef _DEBUG
+  options.debugLevel = D2D1_DEBUG_LEVEL_WARNING;
+#else
+  options.debugLevel = D2D1_DEBUG_LEVEL_NONE;
+#endif
+
+  HRESULT hr = createD2DFactory(D2D1_FACTORY_TYPE_MULTI_THREADED,
+                                __uuidof(ID2D1Factory),
+                                &options,
+                                (void**)&mFactory);
+
+  if (FAILED(hr)) {
+    gfxWarning() << "Failed to create Direct2D factory.";
+  }
+
+  return mFactory;
+}
+
+void
+DrawTargetD2D::CleanupD2D()
+{
+  if (mFactory) {
+    mFactory->Release();
+    mFactory = nullptr;
+  }
+}
+
+IDWriteFactory*
+DrawTargetD2D::GetDWriteFactory()
+{
+  if (mDWriteFactory) {
+    return mDWriteFactory;
+  }
+
+  decltype(DWriteCreateFactory)* createDWriteFactory;
+  HMODULE dwriteModule = LoadLibraryW(L"dwrite.dll");
+  createDWriteFactory = (decltype(DWriteCreateFactory)*)
+    GetProcAddress(dwriteModule, "DWriteCreateFactory");
+
+  if (!createDWriteFactory) {
+    gfxWarning() << "Failed to locate DWriteCreateFactory function.";
+    return nullptr;
+  }
+
+  HRESULT hr = createDWriteFactory(DWRITE_FACTORY_TYPE_SHARED, __uuidof(IDWriteFactory),
+                                   reinterpret_cast<IUnknown**>(&mDWriteFactory));
+
+  if (FAILED(hr)) {
+    gfxWarning() << "Failed to create DWrite Factory.";
+  }
+
+  return mDWriteFactory;
+}
+
+void
+DrawTargetD2D::SetScissorToRect(IntRect *aRect)
+{
+  D3D10_RECT rect;
+  if (aRect) {
+    rect.left = aRect->x;
+    rect.right = aRect->XMost();
+    rect.top = aRect->y;
+    rect.bottom = aRect->YMost();
+  } else {
+    rect.left = rect.top = INT32_MIN;
+    rect.right = rect.bottom = INT32_MAX;
+  }
+
+  mDevice->RSSetScissorRects(1, &rect);
+}
+
+void
+DrawTargetD2D::PushD2DLayer(ID2D1RenderTarget *aRT, ID2D1Geometry *aGeometry, ID2D1Layer *aLayer, const D2D1_MATRIX_3X2_F &aTransform)
+{
+  D2D1_LAYER_OPTIONS options = D2D1_LAYER_OPTIONS_NONE;
+  D2D1_LAYER_OPTIONS1 options1 =  D2D1_LAYER_OPTIONS1_NONE;
+
+  if (aRT->GetPixelFormat().alphaMode == D2D1_ALPHA_MODE_IGNORE) {
+    options = D2D1_LAYER_OPTIONS_INITIALIZE_FOR_CLEARTYPE;
+    options1 = D2D1_LAYER_OPTIONS1_IGNORE_ALPHA | D2D1_LAYER_OPTIONS1_INITIALIZE_FROM_BACKGROUND;
+  }
+
+	RefPtr<ID2D1DeviceContext> dc;
+	HRESULT hr = aRT->QueryInterface(IID_ID2D1DeviceContext, (void**)((ID2D1DeviceContext**)byRef(dc)));
+
+	if (FAILED(hr)) {
+	    aRT->PushLayer(D2D1::LayerParameters(D2D1::InfiniteRect(), aGeometry,
+				                                   D2D1_ANTIALIAS_MODE_PER_PRIMITIVE, aTransform,
+				                                   1.0, nullptr, options),
+				             aLayer);
+	} else {
+	    dc->PushLayer(D2D1::LayerParameters1(D2D1::InfiniteRect(), aGeometry,
+				                                   D2D1_ANTIALIAS_MODE_PER_PRIMITIVE, aTransform,
+				                                   1.0, nullptr, options1),
+				            aLayer);
+	}
+}
+
+}
+}