The Tor Browser: gfx/2d/DrawTargetD2D1.cpp@b8a032363ba2 (annotated)

gfx/2d/DrawTargetD2D1.cpp@b8a032363ba2 (annotated)

gfx/2d/DrawTargetD2D1.cpp

Thu, 22 Jan 2015 13:21:57 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Thu, 22 Jan 2015 13:21:57 +0100
branch: TOR_BUG_9701
changeset 15: b8a032363ba2
permissions: -rw-r--r--

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

 /* -*- 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(),
 .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,
 .0, nullptr, options), nullptr);
 }
 }
 }

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gfx/2d/DrawTargetD2D1.cpp