The Tor Browser: gfx/2d/DrawTargetD2D.cpp@97036ab72558 (annotated)

gfx/2d/DrawTargetD2D.cpp@97036ab72558 (annotated)

gfx/2d/DrawTargetD2D.cpp

Tue, 06 Jan 2015 21:39:09 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Tue, 06 Jan 2015 21:39:09 +0100
branch: TOR_BUG_9701
changeset 8: 97036ab72558
permissions: -rw-r--r--

Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.

 /* -*- 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);
     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);
     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,
 .0f * pixelOffset, -2.0f * pixelOffset,
 .0f * pixelOffset, -3.0f * pixelOffset,
 .0f * pixelOffset, - 4.0f * pixelOffset };
   pixelOffset = 1.0f / float(tmpSurfSize.height);
   float blurOffsetsV[9] = { 0, pixelOffset, -pixelOffset,
 .0f * pixelOffset, -2.0f * pixelOffset,
 .0f * pixelOffset, -3.0f * pixelOffset,
 .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),
 .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),
 .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(),
 .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);
   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);
   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);
   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(),
 .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),
 .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);
   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, 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,
 .0, nullptr, options),
 				             aLayer);
 	} else {
 	    dc->PushLayer(D2D1::LayerParameters1(D2D1::InfiniteRect(), aGeometry,
 				                                   D2D1_ANTIALIAS_MODE_PER_PRIMITIVE, aTransform,
 .0, nullptr, options1),
 				            aLayer);
 	}
 }
 }
 }

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gfx/2d/DrawTargetD2D.cpp@97036ab72558 (annotated)

gfx/2d/DrawTargetD2D.cpp