diff -r 000000000000 -r 6474c204b198 gfx/2d/DrawTargetD2D1.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gfx/2d/DrawTargetD2D1.cpp	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,967 @@
+/* -*- 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 "DrawTargetD2D1.h"
+#include "DrawTargetD2D.h"
+#include "FilterNodeSoftware.h"
+#include "GradientStopsD2D.h"
+#include "SourceSurfaceD2D1.h"
+#include "SourceSurfaceD2D.h"
+#include "RadialGradientEffectD2D1.h"
+
+#include "HelpersD2D.h"
+#include "FilterNodeD2D1.h"
+#include "Tools.h"
+
+using namespace std;
+
+namespace mozilla {
+namespace gfx {
+
+uint64_t DrawTargetD2D1::mVRAMUsageDT;
+uint64_t DrawTargetD2D1::mVRAMUsageSS;
+ID2D1Factory1* DrawTargetD2D1::mFactory = nullptr;
+
+ID2D1Factory1 *D2DFactory1()
+{
+  return DrawTargetD2D1::factory();
+}
+
+DrawTargetD2D1::DrawTargetD2D1()
+  : mClipsArePushed(false)
+{
+}
+
+DrawTargetD2D1::~DrawTargetD2D1()
+{
+  PopAllClips();
+
+  mDC->EndDraw();
+}
+
+TemporaryRef<SourceSurface>
+DrawTargetD2D1::Snapshot()
+{
+  if (mSnapshot) {
+    return mSnapshot;
+  }
+  PopAllClips();
+
+  mDC->Flush();
+
+  mSnapshot = new SourceSurfaceD2D1(mBitmap, mDC, mFormat, mSize, this);
+
+  return mSnapshot;
+}
+
+void
+DrawTargetD2D1::Flush()
+{
+  mDC->Flush();
+}
+
+void
+DrawTargetD2D1::DrawSurface(SourceSurface *aSurface,
+                            const Rect &aDest,
+                            const Rect &aSource,
+                            const DrawSurfaceOptions &aSurfOptions,
+                            const DrawOptions &aOptions)
+{
+  RefPtr<ID2D1Image> image = GetImageForSurface(aSurface, ExtendMode::CLAMP);
+
+  if (!image) {
+    gfxWarning() << *this << ": Unable to get D2D image for surface.";
+    return;
+  }
+
+  PrepareForDrawing(aOptions.mCompositionOp, ColorPattern(Color()));
+
+  D2D1_RECT_F samplingBounds;
+
+  if (aSurfOptions.mSamplingBounds == SamplingBounds::BOUNDED) {
+    samplingBounds = D2DRect(aSource);
+  } else {
+    samplingBounds = D2D1::RectF(0, 0, Float(aSurface->GetSize().width), Float(aSurface->GetSize().height));
+  }
+
+  Float xScale = aDest.width / aSource.width;
+  Float yScale = aDest.height / aSource.height;
+
+  RefPtr<ID2D1ImageBrush> brush;
+
+  // Here we scale the source pattern up to the size and position where we want
+  // it to be.
+  Matrix transform;
+  transform.Translate(aDest.x, aDest.y);
+  transform.Scale(xScale, yScale);
+
+  mDC->CreateImageBrush(image, D2D1::ImageBrushProperties(samplingBounds),
+                        D2D1::BrushProperties(aOptions.mAlpha, D2DMatrix(transform)),
+                        byRef(brush));
+  mDC->FillRectangle(D2DRect(aDest), brush);
+
+  FinalizeDrawing(aOptions.mCompositionOp, ColorPattern(Color()));
+}
+
+void
+DrawTargetD2D1::DrawFilter(FilterNode *aNode,
+                           const Rect &aSourceRect,
+                           const Point &aDestPoint,
+                           const DrawOptions &aOptions)
+{
+  if (aNode->GetBackendType() != FILTER_BACKEND_DIRECT2D1_1) {
+    gfxWarning() << *this << ": Incompatible filter passed to DrawFilter.";
+    return;
+  }
+
+  PrepareForDrawing(aOptions.mCompositionOp, ColorPattern(Color()));
+
+  mDC->DrawImage(static_cast<FilterNodeD2D1*>(aNode)->OutputEffect(), D2DPoint(aDestPoint), D2DRect(aSourceRect));
+}
+
+void
+DrawTargetD2D1::DrawSurfaceWithShadow(SourceSurface *aSurface,
+                                      const Point &aDest,
+                                      const Color &aColor,
+                                      const Point &aOffset,
+                                      Float aSigma,
+                                      CompositionOp aOperator)
+{
+  MarkChanged();
+  mDC->SetTransform(D2D1::IdentityMatrix());
+  mTransformDirty = true;
+
+  Matrix mat;
+  RefPtr<ID2D1Image> image = GetImageForSurface(aSurface, mat, ExtendMode::CLAMP);
+
+  if (!mat.IsIdentity()) {
+    gfxDebug() << *this << ": At this point complex partial uploads are not supported for Shadow surfaces.";
+    return;
+  }
+
+  // Step 1, create the shadow effect.
+  RefPtr<ID2D1Effect> shadowEffect;
+  mDC->CreateEffect(CLSID_D2D1Shadow, byRef(shadowEffect));
+  shadowEffect->SetInput(0, image);
+  shadowEffect->SetValue(D2D1_SHADOW_PROP_BLUR_STANDARD_DEVIATION, aSigma);
+  D2D1_VECTOR_4F color = { aColor.r, aColor.g, aColor.b, aColor.a };
+  shadowEffect->SetValue(D2D1_SHADOW_PROP_COLOR, color);
+
+  // Step 2, move the shadow effect into place.
+  RefPtr<ID2D1Effect> affineTransformEffect;
+  mDC->CreateEffect(CLSID_D2D12DAffineTransform, byRef(affineTransformEffect));
+  affineTransformEffect->SetInputEffect(0, shadowEffect);
+  D2D1_MATRIX_3X2_F matrix = D2D1::Matrix3x2F::Translation(aOffset.x, aOffset.y);
+  affineTransformEffect->SetValue(D2D1_2DAFFINETRANSFORM_PROP_TRANSFORM_MATRIX, matrix);
+
+  // Step 3, create an effect that combines shadow and bitmap in one image.
+  RefPtr<ID2D1Effect> compositeEffect;
+  mDC->CreateEffect(CLSID_D2D1Composite, byRef(compositeEffect));
+  compositeEffect->SetInputEffect(0, affineTransformEffect);
+  compositeEffect->SetInput(1, image);
+  compositeEffect->SetValue(D2D1_COMPOSITE_PROP_MODE, D2DCompositionMode(aOperator));
+
+  D2D1_POINT_2F surfPoint = D2DPoint(aDest);
+  mDC->DrawImage(compositeEffect, &surfPoint, nullptr, D2D1_INTERPOLATION_MODE_LINEAR, D2DCompositionMode(aOperator));
+}
+
+void
+DrawTargetD2D1::ClearRect(const Rect &aRect)
+{
+  MarkChanged();
+
+  mDC->PushAxisAlignedClip(D2DRect(aRect), D2D1_ANTIALIAS_MODE_PER_PRIMITIVE);
+  mDC->Clear();
+  mDC->PopAxisAlignedClip();
+}
+
+void
+DrawTargetD2D1::MaskSurface(const Pattern &aSource,
+                            SourceSurface *aMask,
+                            Point aOffset,
+                            const DrawOptions &aOptions)
+{
+  RefPtr<ID2D1Bitmap> bitmap;
+
+  RefPtr<ID2D1Image> image = GetImageForSurface(aMask, ExtendMode::CLAMP);
+
+  PrepareForDrawing(aOptions.mCompositionOp, aSource);
+
+  // FillOpacityMask only works if the antialias mode is MODE_ALIASED
+  mDC->SetAntialiasMode(D2D1_ANTIALIAS_MODE_ALIASED);
+
+  IntSize size = aMask->GetSize();
+  Rect maskRect = Rect(0.f, 0.f, Float(size.width), Float(size.height));
+  image->QueryInterface((ID2D1Bitmap**)&bitmap);
+  if (!bitmap) {
+    gfxWarning() << "FillOpacityMask only works with Bitmap source surfaces.";
+    return;
+  }
+
+  Rect dest = Rect(aOffset.x, aOffset.y, Float(size.width), Float(size.height));
+  RefPtr<ID2D1Brush> brush = CreateBrushForPattern(aSource, aOptions.mAlpha);
+  mDC->FillOpacityMask(bitmap, brush, D2D1_OPACITY_MASK_CONTENT_GRAPHICS, D2DRect(dest), D2DRect(maskRect));
+
+  mDC->SetAntialiasMode(D2D1_ANTIALIAS_MODE_PER_PRIMITIVE);
+
+  FinalizeDrawing(aOptions.mCompositionOp, aSource);
+}
+
+void
+DrawTargetD2D1::CopySurface(SourceSurface *aSurface,
+                            const IntRect &aSourceRect,
+                            const IntPoint &aDestination)
+{
+  MarkChanged();
+
+  mDC->SetTransform(D2D1::IdentityMatrix());
+  mTransformDirty = true;
+
+  Matrix mat;
+  RefPtr<ID2D1Image> image = GetImageForSurface(aSurface, mat, ExtendMode::CLAMP);
+
+  if (!mat.IsIdentity()) {
+    gfxDebug() << *this << ": At this point complex partial uploads are not supported for CopySurface.";
+    return;
+  }
+
+  mDC->DrawImage(image, D2D1::Point2F(Float(aDestination.x), Float(aDestination.y)),
+                 D2D1::RectF(Float(aSourceRect.x), Float(aSourceRect.y), 
+                             Float(aSourceRect.XMost()), Float(aSourceRect.YMost())),
+                 D2D1_INTERPOLATION_MODE_NEAREST_NEIGHBOR, D2D1_COMPOSITE_MODE_BOUNDED_SOURCE_COPY);
+}
+
+void
+DrawTargetD2D1::FillRect(const Rect &aRect,
+                         const Pattern &aPattern,
+                         const DrawOptions &aOptions)
+{
+  PrepareForDrawing(aOptions.mCompositionOp, aPattern);
+
+  RefPtr<ID2D1Brush> brush = CreateBrushForPattern(aPattern, aOptions.mAlpha);
+  mDC->FillRectangle(D2DRect(aRect), brush);
+
+  FinalizeDrawing(aOptions.mCompositionOp, aPattern);
+}
+
+void
+DrawTargetD2D1::StrokeRect(const Rect &aRect,
+                           const Pattern &aPattern,
+                           const StrokeOptions &aStrokeOptions,
+                           const DrawOptions &aOptions)
+{
+  PrepareForDrawing(aOptions.mCompositionOp, aPattern);
+
+  RefPtr<ID2D1Brush> brush = CreateBrushForPattern(aPattern, aOptions.mAlpha);
+  RefPtr<ID2D1StrokeStyle> strokeStyle = CreateStrokeStyleForOptions(aStrokeOptions);
+
+  mDC->DrawRectangle(D2DRect(aRect), brush, aStrokeOptions.mLineWidth, strokeStyle);
+
+  FinalizeDrawing(aOptions.mCompositionOp, aPattern);
+}
+
+void
+DrawTargetD2D1::StrokeLine(const Point &aStart,
+                           const Point &aEnd,
+                           const Pattern &aPattern,
+                           const StrokeOptions &aStrokeOptions,
+                           const DrawOptions &aOptions)
+{
+  PrepareForDrawing(aOptions.mCompositionOp, aPattern);
+
+  RefPtr<ID2D1Brush> brush = CreateBrushForPattern(aPattern, aOptions.mAlpha);
+  RefPtr<ID2D1StrokeStyle> strokeStyle = CreateStrokeStyleForOptions(aStrokeOptions);
+
+  mDC->DrawLine(D2DPoint(aStart), D2DPoint(aEnd), brush, aStrokeOptions.mLineWidth, strokeStyle);
+
+  FinalizeDrawing(aOptions.mCompositionOp, aPattern);
+}
+
+void
+DrawTargetD2D1::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);
+
+  PrepareForDrawing(aOptions.mCompositionOp, aPattern);
+
+  RefPtr<ID2D1Brush> brush = CreateBrushForPattern(aPattern, aOptions.mAlpha);
+  RefPtr<ID2D1StrokeStyle> strokeStyle = CreateStrokeStyleForOptions(aStrokeOptions);
+
+  mDC->DrawGeometry(d2dPath->mGeometry, brush, aStrokeOptions.mLineWidth, strokeStyle);
+
+  FinalizeDrawing(aOptions.mCompositionOp, aPattern);
+}
+
+void
+DrawTargetD2D1::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);
+
+  PrepareForDrawing(aOptions.mCompositionOp, aPattern);
+
+  RefPtr<ID2D1Brush> brush = CreateBrushForPattern(aPattern, aOptions.mAlpha);
+
+  mDC->FillGeometry(d2dPath->mGeometry, brush);
+
+  FinalizeDrawing(aOptions.mCompositionOp, aPattern);
+}
+
+void
+DrawTargetD2D1::FillGlyphs(ScaledFont *aFont,
+                           const GlyphBuffer &aBuffer,
+                           const Pattern &aPattern,
+                           const DrawOptions &aOptions,
+                           const GlyphRenderingOptions *aRenderingOptions)
+{
+  if (aFont->GetType() != FontType::DWRITE) {
+    gfxDebug() << *this << ": Ignoring drawing call for incompatible font.";
+    return;
+  }
+
+  ScaledFontDWrite *font = static_cast<ScaledFontDWrite*>(aFont);
+
+  IDWriteRenderingParams *params = nullptr;
+  if (aRenderingOptions) {
+    if (aRenderingOptions->GetType() != FontType::DWRITE) {
+      gfxDebug() << *this << ": Ignoring incompatible GlyphRenderingOptions.";
+      // This should never happen.
+      MOZ_ASSERT(false);
+    } else {
+      params = static_cast<const GlyphRenderingOptionsDWrite*>(aRenderingOptions)->mParams;
+    }
+  }
+
+  AntialiasMode aaMode = font->GetDefaultAAMode();
+
+  if (aOptions.mAntialiasMode != AntialiasMode::DEFAULT) {
+    aaMode = aOptions.mAntialiasMode;
+  }
+
+  PrepareForDrawing(aOptions.mCompositionOp, aPattern);
+
+  bool forceClearType = false;
+  if (mFormat == SurfaceFormat::B8G8R8A8 && mPermitSubpixelAA &&
+      aOptions.mCompositionOp == CompositionOp::OP_OVER && aaMode == AntialiasMode::SUBPIXEL) {
+    forceClearType = true;    
+  }
+
+
+  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 && !forceClearType) {
+    d2dAAMode = D2D1_TEXT_ANTIALIAS_MODE_GRAYSCALE;
+  }
+
+  mDC->SetTextAntialiasMode(d2dAAMode);
+
+  if (params != mTextRenderingParams) {
+    mDC->SetTextRenderingParams(params);
+    mTextRenderingParams = params;
+  }
+
+  RefPtr<ID2D1Brush> brush = CreateBrushForPattern(aPattern, aOptions.mAlpha);
+
+  AutoDWriteGlyphRun autoRun;
+  DWriteGlyphRunFromGlyphs(aBuffer, font, &autoRun);
+
+  if (brush) {
+    mDC->DrawGlyphRun(D2D1::Point2F(), &autoRun, brush);
+  }
+
+  FinalizeDrawing(aOptions.mCompositionOp, aPattern);
+}
+
+void
+DrawTargetD2D1::Mask(const Pattern &aSource,
+                     const Pattern &aMask,
+                     const DrawOptions &aOptions)
+{
+  PrepareForDrawing(aOptions.mCompositionOp, aSource);
+
+  RefPtr<ID2D1Brush> source = CreateBrushForPattern(aSource, aOptions.mAlpha);
+  RefPtr<ID2D1Brush> mask = CreateBrushForPattern(aMask, 1.0f);
+  mDC->PushLayer(D2D1::LayerParameters(D2D1::InfiniteRect(), nullptr,
+                                       D2D1_ANTIALIAS_MODE_PER_PRIMITIVE,
+                                       D2D1::IdentityMatrix(),
+                                       1.0f, mask),
+                 nullptr);
+
+  Rect rect(0, 0, (Float)mSize.width, (Float)mSize.height);
+  Matrix mat = mTransform;
+  mat.Invert();
+  
+  mDC->FillRectangle(D2DRect(mat.TransformBounds(rect)), source);
+
+  mDC->PopLayer();
+
+  FinalizeDrawing(aOptions.mCompositionOp, aSource);
+}
+
+void
+DrawTargetD2D1::PushClip(const Path *aPath)
+{
+  if (aPath->GetBackendType() != BackendType::DIRECT2D) {
+    gfxDebug() << *this << ": Ignoring clipping call for incompatible path.";
+    return;
+  }
+
+  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);
+
+  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.
+  mDC->SetTransform(D2D1::IdentityMatrix());
+  mTransformDirty = true;
+
+  if (mClipsArePushed) {
+    PushD2DLayer(mDC, pathD2D->mGeometry, clip.mTransform);
+  }
+}
+
+void
+DrawTargetD2D1::PushClipRect(const Rect &aRect)
+{
+  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);
+
+  mDC->SetTransform(D2D1::IdentityMatrix());
+  mTransformDirty = true;
+
+  if (mClipsArePushed) {
+    mDC->PushAxisAlignedClip(clip.mBounds, clip.mIsPixelAligned ? D2D1_ANTIALIAS_MODE_ALIASED : D2D1_ANTIALIAS_MODE_PER_PRIMITIVE);
+  }
+}
+
+void
+DrawTargetD2D1::PopClip()
+{
+  if (mClipsArePushed) {
+    if (mPushedClips.back().mPath) {
+      mDC->PopLayer();
+    } else {
+      mDC->PopAxisAlignedClip();
+    }
+  }
+  mPushedClips.pop_back();
+}
+
+TemporaryRef<SourceSurface>
+DrawTargetD2D1::CreateSourceSurfaceFromData(unsigned char *aData,
+                                            const IntSize &aSize,
+                                            int32_t aStride,
+                                            SurfaceFormat aFormat) const
+{
+  RefPtr<ID2D1Bitmap1> bitmap;
+
+  HRESULT hr = mDC->CreateBitmap(D2DIntSize(aSize), aData, aStride,
+                                 D2D1::BitmapProperties1(D2D1_BITMAP_OPTIONS_NONE, D2DPixelFormat(aFormat)),
+                                 byRef(bitmap));
+
+  if (!bitmap) {
+    return nullptr;
+  }
+
+  return new SourceSurfaceD2D1(bitmap.get(), mDC, aFormat, aSize);
+}
+
+TemporaryRef<DrawTarget>
+DrawTargetD2D1::CreateSimilarDrawTarget(const IntSize &aSize, SurfaceFormat aFormat) const
+{
+  RefPtr<DrawTargetD2D1> dt = new DrawTargetD2D1();
+
+  if (!dt->Init(aSize, aFormat)) {
+    return nullptr;
+  }
+
+  return dt;
+}
+
+TemporaryRef<PathBuilder>
+DrawTargetD2D1::CreatePathBuilder(FillRule aFillRule) const
+{
+  RefPtr<ID2D1PathGeometry> path;
+  HRESULT hr = factory()->CreatePathGeometry(byRef(path));
+
+  if (FAILED(hr)) {
+    gfxWarning() << *this << ": Failed to create Direct2D Path Geometry. Code: " << hr;
+    return nullptr;
+  }
+
+  RefPtr<ID2D1GeometrySink> sink;
+  hr = path->Open(byRef(sink));
+  if (FAILED(hr)) {
+    gfxWarning() << *this << ": 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>
+DrawTargetD2D1::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 =
+    mDC->CreateGradientStopCollection(stops, aNumStops,
+                                      D2D1_GAMMA_2_2, D2DExtend(aExtendMode),
+                                      byRef(stopCollection));
+  delete [] stops;
+
+  if (FAILED(hr)) {
+    gfxWarning() << *this << ": Failed to create GradientStopCollection. Code: " << hr;
+    return nullptr;
+  }
+
+  return new GradientStopsD2D(stopCollection);
+}
+
+TemporaryRef<FilterNode>
+DrawTargetD2D1::CreateFilter(FilterType aType)
+{
+  return FilterNodeD2D1::Create(this, mDC, aType);
+}
+
+bool
+DrawTargetD2D1::Init(const IntSize &aSize, SurfaceFormat aFormat)
+{
+  HRESULT hr;
+  
+  hr = Factory::GetD2D1Device()->CreateDeviceContext(D2D1_DEVICE_CONTEXT_OPTIONS_ENABLE_MULTITHREADED_OPTIMIZATIONS, byRef(mDC));
+
+  if (FAILED(hr)) {
+    gfxWarning() << *this << ": Error " << hr << " failed to initialize new DeviceContext.";
+    return false;
+  }
+
+  D2D1_BITMAP_PROPERTIES1 props;
+  props.dpiX = 96;
+  props.dpiY = 96;
+  props.pixelFormat = D2DPixelFormat(aFormat);
+  props.colorContext = nullptr;
+  props.bitmapOptions = D2D1_BITMAP_OPTIONS_TARGET;
+  mDC->CreateBitmap(D2DIntSize(aSize), nullptr, 0, props, (ID2D1Bitmap1**)byRef(mBitmap));
+
+  if (FAILED(hr)) {
+    gfxWarning() << *this << ": Error " << hr << " failed to create new CommandList.";
+    return false;
+  }
+
+  mDC->CreateBitmap(D2DIntSize(aSize), nullptr, 0, props, (ID2D1Bitmap1**)byRef(mTempBitmap));
+
+  mDC->SetTarget(mBitmap);
+
+  mDC->BeginDraw();
+
+  mFormat = aFormat;
+  mSize = aSize;
+
+  return true;
+}
+
+/**
+ * Private helpers.
+ */
+uint32_t
+DrawTargetD2D1::GetByteSize() const
+{
+  return mSize.width * mSize.height * BytesPerPixel(mFormat);
+}
+
+ID2D1Factory1*
+DrawTargetD2D1::factory()
+{
+  if (mFactory) {
+    return mFactory;
+  }
+
+  HRESULT hr = D2DFactory()->QueryInterface((ID2D1Factory1**)&mFactory);
+
+  if (FAILED(hr)) {
+    return nullptr;
+  }
+
+  RadialGradientEffectD2D1::Register(mFactory);
+
+  return mFactory;
+}
+
+void
+DrawTargetD2D1::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());
+  }
+}
+
+void
+DrawTargetD2D1::PrepareForDrawing(CompositionOp aOp, const Pattern &aPattern)
+{
+  MarkChanged();
+
+  // It's important to do this before FlushTransformToDC! As this will cause
+  // the transform to become dirty.
+  if (!mClipsArePushed) {
+    mClipsArePushed = true;
+    PushClipsToDC(mDC);
+  }
+
+  FlushTransformToDC();
+
+  if (aOp == CompositionOp::OP_OVER && IsPatternSupportedByD2D(aPattern)) {
+    return;
+  }
+
+  mDC->SetTarget(mTempBitmap);
+  mDC->Clear(D2D1::ColorF(0, 0));
+}
+
+void
+DrawTargetD2D1::FinalizeDrawing(CompositionOp aOp, const Pattern &aPattern)
+{
+  bool patternSupported = IsPatternSupportedByD2D(aPattern);
+
+  if (aOp == CompositionOp::OP_OVER && patternSupported) {
+    return;
+  }
+
+  RefPtr<ID2D1Image> image;
+  mDC->GetTarget(byRef(image));
+
+  mDC->SetTarget(mBitmap);
+
+  if (patternSupported) {
+    mDC->DrawImage(image, D2D1_INTERPOLATION_MODE_NEAREST_NEIGHBOR, D2DCompositionMode(aOp));
+    return;
+  }
+
+  mDC->SetTransform(D2D1::IdentityMatrix());
+  mTransformDirty = true;
+
+  RefPtr<ID2D1Effect> radialGradientEffect;
+
+  mDC->CreateEffect(CLSID_RadialGradientEffect, byRef(radialGradientEffect));
+  const RadialGradientPattern *pat = static_cast<const RadialGradientPattern*>(&aPattern);
+
+  radialGradientEffect->SetValue(RADIAL_PROP_STOP_COLLECTION,
+                                 static_cast<const GradientStopsD2D*>(pat->mStops.get())->mStopCollection);
+  radialGradientEffect->SetValue(RADIAL_PROP_CENTER_1, D2D1::Vector2F(pat->mCenter1.x, pat->mCenter1.y));
+  radialGradientEffect->SetValue(RADIAL_PROP_CENTER_2, D2D1::Vector2F(pat->mCenter2.x, pat->mCenter2.y));
+  radialGradientEffect->SetValue(RADIAL_PROP_RADIUS_1, pat->mRadius1);
+  radialGradientEffect->SetValue(RADIAL_PROP_RADIUS_2, pat->mRadius2);
+  radialGradientEffect->SetValue(RADIAL_PROP_RADIUS_2, pat->mRadius2);
+  radialGradientEffect->SetValue(RADIAL_PROP_TRANSFORM, D2DMatrix(pat->mMatrix * mTransform));
+  radialGradientEffect->SetInput(0, image);
+
+  mDC->DrawImage(radialGradientEffect, D2D1_INTERPOLATION_MODE_NEAREST_NEIGHBOR, D2DCompositionMode(aOp));
+}
+
+void
+DrawTargetD2D1::AddDependencyOnSource(SourceSurfaceD2D1* aSource)
+{
+  if (aSource->mDrawTarget && !mDependingOnTargets.count(aSource->mDrawTarget)) {
+    aSource->mDrawTarget->mDependentTargets.insert(this);
+    mDependingOnTargets.insert(aSource->mDrawTarget);
+  }
+}
+
+void
+DrawTargetD2D1::PopAllClips()
+{
+  if (mClipsArePushed) {
+    PopClipsFromDC(mDC);
+  
+    mClipsArePushed = false;
+  }
+}
+
+void
+DrawTargetD2D1::PushClipsToDC(ID2D1DeviceContext *aDC)
+{
+  mDC->SetTransform(D2D1::IdentityMatrix());
+  mTransformDirty = true;
+
+  for (std::vector<PushedClip>::iterator iter = mPushedClips.begin();
+        iter != mPushedClips.end(); iter++) {
+    if (iter->mPath) {
+      PushD2DLayer(aDC, iter->mPath->mGeometry, iter->mTransform);
+    } else {
+      mDC->PushAxisAlignedClip(iter->mBounds, iter->mIsPixelAligned ? D2D1_ANTIALIAS_MODE_ALIASED : D2D1_ANTIALIAS_MODE_PER_PRIMITIVE);
+    }
+  }
+}
+
+void
+DrawTargetD2D1::PopClipsFromDC(ID2D1DeviceContext *aDC)
+{
+  for (int i = mPushedClips.size() - 1; i >= 0; i--) {
+    if (mPushedClips[i].mPath) {
+      aDC->PopLayer();
+    } else {
+      aDC->PopAxisAlignedClip();
+    }
+  }
+}
+
+TemporaryRef<ID2D1Brush>
+DrawTargetD2D1::CreateBrushForPattern(const Pattern &aPattern, Float aAlpha)
+{
+  if (!IsPatternSupportedByD2D(aPattern)) {
+    RefPtr<ID2D1SolidColorBrush> colBrush;
+    mDC->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;
+    mDC->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);
+      mDC->CreateSolidColorBrush(d2dStops.back().color,
+                                 D2D1::BrushProperties(aAlpha),
+                                 byRef(colBrush));
+      return colBrush;
+    }
+
+    mDC->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.
+    mDC->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) {
+    const SurfacePattern *pat =
+      static_cast<const SurfacePattern*>(&aPattern);
+
+    if (!pat->mSurface) {
+      gfxDebug() << "No source surface specified for surface pattern";
+      return nullptr;
+    }
+
+
+    Matrix mat = pat->mMatrix;
+    
+    RefPtr<ID2D1ImageBrush> imageBrush;
+    RefPtr<ID2D1Image> image = GetImageForSurface(pat->mSurface, mat, pat->mExtendMode);
+    mDC->CreateImageBrush(image,
+                          D2D1::ImageBrushProperties(D2D1::RectF(0, 0,
+                                                                  Float(pat->mSurface->GetSize().width),
+                                                                  Float(pat->mSurface->GetSize().height)),
+                                  D2DExtend(pat->mExtendMode), D2DExtend(pat->mExtendMode),
+                                  D2DInterpolationMode(pat->mFilter)),
+                          D2D1::BrushProperties(aAlpha, D2DMatrix(mat)),
+                          byRef(imageBrush));
+    return imageBrush;
+  }
+
+  gfxWarning() << "Invalid pattern type detected.";
+  return nullptr;
+}
+
+TemporaryRef<ID2D1Image>
+DrawTargetD2D1::GetImageForSurface(SourceSurface *aSurface, Matrix &aSourceTransform,
+                                   ExtendMode aExtendMode)
+{
+  RefPtr<ID2D1Image> image;
+
+  switch (aSurface->GetType()) {
+  case SurfaceType::D2D1_1_IMAGE:
+    {
+      SourceSurfaceD2D1 *surf = static_cast<SourceSurfaceD2D1*>(aSurface);
+      image = surf->GetImage();
+      AddDependencyOnSource(surf);
+    }
+    break;
+  default:
+    {
+      RefPtr<DataSourceSurface> dataSurf = aSurface->GetDataSurface();
+      if (!dataSurf) {
+        gfxWarning() << "Invalid surface type.";
+        return nullptr;
+      }
+
+      image = CreatePartialBitmapForSurface(dataSurf, mTransform, mSize, aExtendMode,
+                                            aSourceTransform, mDC); 
+
+      return image;
+    }
+    break;
+  }
+
+  return image;
+}
+
+TemporaryRef<SourceSurface>
+DrawTargetD2D1::OptimizeSourceSurface(SourceSurface* aSurface) const
+{
+  if (aSurface->GetType() == SurfaceType::D2D1_1_IMAGE) {
+    return aSurface;
+  }
+
+  RefPtr<DataSourceSurface> data = aSurface->GetDataSurface();
+
+  DataSourceSurface::MappedSurface map;
+  if (!data->Map(DataSourceSurface::MapType::READ, &map)) {
+    return nullptr;
+  }
+
+  RefPtr<ID2D1Bitmap1> bitmap;
+  HRESULT hr = mDC->CreateBitmap(D2DIntSize(data->GetSize()), map.mData, map.mStride,
+                                 D2D1::BitmapProperties1(D2D1_BITMAP_OPTIONS_NONE, D2DPixelFormat(data->GetFormat())),
+                                 byRef(bitmap));
+
+  data->Unmap();
+
+  if (!bitmap) {
+    return data;
+  }
+
+  return new SourceSurfaceD2D1(bitmap.get(), mDC, data->GetFormat(), data->GetSize());
+}
+
+void
+DrawTargetD2D1::PushD2DLayer(ID2D1DeviceContext *aDC, ID2D1Geometry *aGeometry, const D2D1_MATRIX_3X2_F &aTransform)
+{
+  D2D1_LAYER_OPTIONS1 options = D2D1_LAYER_OPTIONS1_NONE;
+
+  if (aDC->GetPixelFormat().alphaMode == D2D1_ALPHA_MODE_IGNORE) {
+    options = D2D1_LAYER_OPTIONS1_IGNORE_ALPHA | D2D1_LAYER_OPTIONS1_INITIALIZE_FROM_BACKGROUND;
+  }
+
+  mDC->PushLayer(D2D1::LayerParameters1(D2D1::InfiniteRect(), aGeometry,
+                                        D2D1_ANTIALIAS_MODE_PER_PRIMITIVE, aTransform,
+                                        1.0, nullptr, options), nullptr);
+}
+
+}
+}