The Tor Browser: comparison gfx/2d/DrawTargetD2D.cpp

--1:000000000000
+:64563cf5e711
+/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+* This Source Code Form is subject to the terms of the Mozilla Public
+* License, v. 2.0. If a copy of the MPL was not distributed with this
+* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+#include <initguid.h>
+#include "DrawTargetD2D.h"
+#include "SourceSurfaceD2D.h"
+#ifdef USE_D2D1_1
+#include "SourceSurfaceD2D1.h"
+#endif
+#include "SourceSurfaceD2DTarget.h"
+#include "ShadersD2D.h"
+#include "PathD2D.h"
+#include "GradientStopsD2D.h"
+#include "ScaledFontDWrite.h"
+#include "ImageScaling.h"
+#include "Logging.h"
+#include "Tools.h"
+#include <algorithm>
+#include "mozilla/Constants.h"
+#include "FilterNodeSoftware.h"
+#ifdef USE_D2D1_1
+#include "FilterNodeD2D1.h"
+#endif
+#include <dwrite.h>
+// decltype is not usable for overloaded functions.
+typedef HRESULT (WINAPI*D2D1CreateFactoryFunc)(
+D2D1_FACTORY_TYPE factoryType,
+REFIID iid,
+CONST D2D1_FACTORY_OPTIONS *pFactoryOptions,
+void **factory
+);
+using namespace std;
+namespace mozilla {
+namespace gfx {
+struct Vertex {
+float x;
+float y;
+};
+ID2D1Factory *DrawTargetD2D::mFactory;
+IDWriteFactory *DrawTargetD2D::mDWriteFactory;
+uint64_t DrawTargetD2D::mVRAMUsageDT;
+uint64_t DrawTargetD2D::mVRAMUsageSS;
+// Helper class to restore surface contents that was clipped out but may have
+// been altered by a drawing call.
+class AutoSaveRestoreClippedOut
+{
+public:
+AutoSaveRestoreClippedOut(DrawTargetD2D *aDT)
+: mDT(aDT)
+{}
+void Save() {
+if (!mDT->mPushedClips.size()) {
+return;
+}
+mDT->Flush();
+RefPtr<ID3D10Texture2D> tmpTexture;
+IntSize size = mDT->mSize;
+SurfaceFormat format = mDT->mFormat;
+CD3D10_TEXTURE2D_DESC desc(DXGIFormat(format), size.width, size.height,
+1, 1);
+desc.BindFlags = D3D10_BIND_RENDER_TARGET | D3D10_BIND_SHADER_RESOURCE;
+HRESULT hr = mDT->mDevice->CreateTexture2D(&desc, nullptr, byRef(tmpTexture));
+if (FAILED(hr)) {
+gfxWarning() << "Failed to create temporary texture to hold surface data.";
+}
+mDT->mDevice->CopyResource(tmpTexture, mDT->mTexture);
+D2D1_BITMAP_PROPERTIES props = D2D1::BitmapProperties(D2DPixelFormat(format));
+RefPtr<IDXGISurface> surf;
+tmpTexture->QueryInterface((IDXGISurface**)byRef(surf));
+hr = mDT->mRT->CreateSharedBitmap(IID_IDXGISurface, surf,
+&props, byRef(mOldSurfBitmap));
+if (FAILED(hr)) {
+gfxWarning() << "Failed to create shared bitmap for old surface.";
+}
+IntRect clipBounds;
+mClippedArea = mDT->GetClippedGeometry(&clipBounds);
+if (!clipBounds.IsEqualEdges(IntRect(IntPoint(0, 0), mDT->mSize))) {
+// We still need to take into account clipBounds if it contains additional
+// clipping information.
+RefPtr<ID2D1RectangleGeometry> rectGeom;
+factory()->CreateRectangleGeometry(D2D1::Rect(Float(clipBounds.x),
+Float(clipBounds.y),
+Float(clipBounds.XMost()),
+Float(clipBounds.YMost())),
+byRef(rectGeom));
+mClippedArea = IntersectGeometry(mClippedArea, rectGeom);
+}
+}
+ID2D1Factory *factory() { return mDT->factory(); }
+~AutoSaveRestoreClippedOut()
+{
+if (!mOldSurfBitmap) {
+return;
+}
+ID2D1RenderTarget *rt = mDT->mRT;
+// Write the area that was clipped out back to the surface. This all
+// happens in device space.
+rt->SetTransform(D2D1::IdentityMatrix());
+mDT->mTransformDirty = true;
+RefPtr<ID2D1RectangleGeometry> rectGeom;
+factory()->CreateRectangleGeometry(
+D2D1::RectF(0, 0, float(mDT->mSize.width), float(mDT->mSize.height)),
+byRef(rectGeom));
+RefPtr<ID2D1PathGeometry> invClippedArea;
+factory()->CreatePathGeometry(byRef(invClippedArea));
+RefPtr<ID2D1GeometrySink> sink;
+invClippedArea->Open(byRef(sink));
+rectGeom->CombineWithGeometry(mClippedArea, D2D1_COMBINE_MODE_EXCLUDE, nullptr, sink);
+sink->Close();
+RefPtr<ID2D1BitmapBrush> brush;
+rt->CreateBitmapBrush(mOldSurfBitmap, D2D1::BitmapBrushProperties(), D2D1::BrushProperties(), byRef(brush));
+rt->FillGeometry(invClippedArea, brush);
+}
+private:
+DrawTargetD2D *mDT;
+// If we have an operator unbound by the source, this will contain a bitmap
+// with the old dest surface data.
+RefPtr<ID2D1Bitmap> mOldSurfBitmap;
+// This contains the area drawing is clipped to.
+RefPtr<ID2D1Geometry> mClippedArea;
+};
+ID2D1Factory *D2DFactory()
+{
+return DrawTargetD2D::factory();
+}
+DrawTargetD2D::DrawTargetD2D()
+: mCurrentCachedLayer(0)
+, mClipsArePushed(false)
+, mPrivateData(nullptr)
+{
+}
+DrawTargetD2D::~DrawTargetD2D()
+{
+if (mRT) {
+PopAllClips();
+mRT->EndDraw();
+mVRAMUsageDT -= GetByteSize();
+}
+if (mTempRT) {
+mTempRT->EndDraw();
+mVRAMUsageDT -= GetByteSize();
+}
+if (mSnapshot) {
+// We may hold the only reference. MarkIndependent will clear mSnapshot;
+// keep the snapshot object alive so it doesn't get destroyed while
+// MarkIndependent is running.
+RefPtr<SourceSurfaceD2DTarget> deathGrip = mSnapshot;
+// mSnapshot can be treated as independent of this DrawTarget since we know
+// this DrawTarget won't change again.
+deathGrip->MarkIndependent();
+// mSnapshot will be cleared now.
+}
+for (int i = 0; i < kLayerCacheSize; i++) {
+if (mCachedLayers[i]) {
+mCachedLayers[i] = nullptr;
+mVRAMUsageDT -= GetByteSize();
+}
+}
+// Targets depending on us can break that dependency, since we're obviously not going to
+// be modified in the future.
+for (TargetSet::iterator iter = mDependentTargets.begin();
+iter != mDependentTargets.end(); iter++) {
+(*iter)->mDependingOnTargets.erase(this);
+}
+// Our dependencies on other targets no longer matter.
+for (TargetSet::iterator iter = mDependingOnTargets.begin();
+iter != mDependingOnTargets.end(); iter++) {
+(*iter)->mDependentTargets.erase(this);
+}
+}
+/*
+* DrawTarget Implementation
+*/
+TemporaryRef<SourceSurface>
+DrawTargetD2D::Snapshot()
+{
+if (!mSnapshot) {
+mSnapshot = new SourceSurfaceD2DTarget(this, mTexture, mFormat);
+Flush();
+}
+return mSnapshot;
+}
+void
+DrawTargetD2D::Flush()
+{
+PopAllClips();
+HRESULT hr = mRT->Flush();
+if (FAILED(hr)) {
+gfxWarning() << "Error reported when trying to flush D2D rendertarget. Code: " << hr;
+}
+// We no longer depend on any target.
+for (TargetSet::iterator iter = mDependingOnTargets.begin();
+iter != mDependingOnTargets.end(); iter++) {
+(*iter)->mDependentTargets.erase(this);
+}
+mDependingOnTargets.clear();
+}
+void
+DrawTargetD2D::AddDependencyOnSource(SourceSurfaceD2DTarget* aSource)
+{
+if (aSource->mDrawTarget && !mDependingOnTargets.count(aSource->mDrawTarget)) {
+aSource->mDrawTarget->mDependentTargets.insert(this);
+mDependingOnTargets.insert(aSource->mDrawTarget);
+}
+}
+TemporaryRef<ID2D1Bitmap>
+DrawTargetD2D::GetBitmapForSurface(SourceSurface *aSurface,
+Rect &aSource)
+{
+RefPtr<ID2D1Bitmap> bitmap;
+switch (aSurface->GetType()) {
+case SurfaceType::D2D1_BITMAP:
+{
+SourceSurfaceD2D *srcSurf = static_cast<SourceSurfaceD2D*>(aSurface);
+bitmap = srcSurf->GetBitmap();
+}
+break;
+case SurfaceType::D2D1_DRAWTARGET:
+{
+SourceSurfaceD2DTarget *srcSurf = static_cast<SourceSurfaceD2DTarget*>(aSurface);
+bitmap = srcSurf->GetBitmap(mRT);
+AddDependencyOnSource(srcSurf);
+}
+break;
+default:
+{
+RefPtr<DataSourceSurface> srcSurf = aSurface->GetDataSurface();
+if (!srcSurf) {
+gfxDebug() << "Not able to deal with non-data source surface.";
+return nullptr;
+}
+// We need to include any pixels that are overlapped by aSource
+Rect sourceRect(aSource);
+sourceRect.RoundOut();
+if (sourceRect.IsEmpty()) {
+gfxDebug() << "Bitmap source is empty. DrawBitmap will silently fail.";
+return nullptr;
+}
+if (sourceRect.width > mRT->GetMaximumBitmapSize() ||
+sourceRect.height > mRT->GetMaximumBitmapSize()) {
+gfxDebug() << "Bitmap source larger than texture size specified. DrawBitmap will silently fail.";
+// Don't know how to deal with this yet.
+return nullptr;
+}
+int stride = srcSurf->Stride();
+unsigned char *data = srcSurf->GetData() +
+(uint32_t)sourceRect.y * stride +
+(uint32_t)sourceRect.x * BytesPerPixel(srcSurf->GetFormat());
+D2D1_BITMAP_PROPERTIES props =
+D2D1::BitmapProperties(D2DPixelFormat(srcSurf->GetFormat()));
+mRT->CreateBitmap(D2D1::SizeU(UINT32(sourceRect.width), UINT32(sourceRect.height)), data, stride, props, byRef(bitmap));
+// subtract the integer part leaving the fractional part
+aSource.x -= (uint32_t)aSource.x;
+aSource.y -= (uint32_t)aSource.y;
+}
+break;
+}
+return bitmap;
+}
+#ifdef USE_D2D1_1
+TemporaryRef<ID2D1Image>
+DrawTargetD2D::GetImageForSurface(SourceSurface *aSurface)
+{
+RefPtr<ID2D1Image> image;
+if (aSurface->GetType() == SurfaceType::D2D1_1_IMAGE) {
+image = static_cast<SourceSurfaceD2D1*>(aSurface)->GetImage();
+static_cast<SourceSurfaceD2D1*>(aSurface)->EnsureIndependent();
+} else {
+Rect r(Point(), Size(aSurface->GetSize()));
+image = GetBitmapForSurface(aSurface, r);
+}
+return image;
+}
+#endif
+void
+DrawTargetD2D::DrawSurface(SourceSurface *aSurface,
+const Rect &aDest,
+const Rect &aSource,
+const DrawSurfaceOptions &aSurfOptions,
+const DrawOptions &aOptions)
+{
+RefPtr<ID2D1Bitmap> bitmap;
+ID2D1RenderTarget *rt = GetRTForOperation(aOptions.mCompositionOp, ColorPattern(Color()));
+PrepareForDrawing(rt);
+rt->SetAntialiasMode(D2DAAMode(aOptions.mAntialiasMode));
+Rect srcRect = aSource;
+bitmap = GetBitmapForSurface(aSurface, srcRect);
+if (!bitmap) {
+return;
+}
+rt->DrawBitmap(bitmap, D2DRect(aDest), aOptions.mAlpha, D2DFilter(aSurfOptions.mFilter), D2DRect(srcRect));
+FinalizeRTForOperation(aOptions.mCompositionOp, ColorPattern(Color()), aDest);
+}
+void
+DrawTargetD2D::DrawFilter(FilterNode *aNode,
+const Rect &aSourceRect,
+const Point &aDestPoint,
+const DrawOptions &aOptions)
+{
+#ifdef USE_D2D1_1
+RefPtr<ID2D1DeviceContext> dc;
+HRESULT hr;
+hr = mRT->QueryInterface((ID2D1DeviceContext**)byRef(dc));
+if (SUCCEEDED(hr) && aNode->GetBackendType() == FILTER_BACKEND_DIRECT2D1_1) {
+ID2D1RenderTarget *rt = GetRTForOperation(aOptions.mCompositionOp, ColorPattern(Color()));
+PrepareForDrawing(rt);
+rt->SetAntialiasMode(D2DAAMode(aOptions.mAntialiasMode));
+hr = rt->QueryInterface((ID2D1DeviceContext**)byRef(dc));
+if (SUCCEEDED(hr)) {
+dc->DrawImage(static_cast<FilterNodeD2D1*>(aNode)->OutputEffect(), D2DPoint(aDestPoint), D2DRect(aSourceRect));
+Rect destRect = aSourceRect;
+destRect.MoveBy(aDestPoint);
+FinalizeRTForOperation(aOptions.mCompositionOp, ColorPattern(Color()), destRect);
+return;
+}
+}
+#endif
+if (aNode->GetBackendType() != FILTER_BACKEND_SOFTWARE) {
+gfxWarning() << "Invalid filter backend passed to DrawTargetD2D!";
+return;
+}
+FilterNodeSoftware* filter = static_cast<FilterNodeSoftware*>(aNode);
+filter->Draw(this, aSourceRect, aDestPoint, aOptions);
+}
+void
+DrawTargetD2D::MaskSurface(const Pattern &aSource,
+SourceSurface *aMask,
+Point aOffset,
+const DrawOptions &aOptions)
+{
+RefPtr<ID2D1Bitmap> bitmap;
+ID2D1RenderTarget *rt = GetRTForOperation(aOptions.mCompositionOp, ColorPattern(Color()));
+PrepareForDrawing(rt);
+// FillOpacityMask only works if the antialias mode is MODE_ALIASED
+rt->SetAntialiasMode(D2D1_ANTIALIAS_MODE_ALIASED);
+IntSize size = aMask->GetSize();
+Rect maskRect = Rect(0.f, 0.f, size.width, size.height);
+bitmap = GetBitmapForSurface(aMask, maskRect);
+if (!bitmap) {
+return;
+}
+Rect dest = Rect(aOffset.x, aOffset.y, size.width, size.height);
+RefPtr<ID2D1Brush> brush = CreateBrushForPattern(aSource, aOptions.mAlpha);
+rt->FillOpacityMask(bitmap, brush, D2D1_OPACITY_MASK_CONTENT_GRAPHICS, D2DRect(dest), D2DRect(maskRect));
+FinalizeRTForOperation(aOptions.mCompositionOp, ColorPattern(Color()), dest);
+}
+void
+DrawTargetD2D::DrawSurfaceWithShadow(SourceSurface *aSurface,
+const Point &aDest,
+const Color &aColor,
+const Point &aOffset,
+Float aSigma,
+CompositionOp aOperator)
+{
+RefPtr<ID3D10ShaderResourceView> srView = nullptr;
+if (aSurface->GetType() != SurfaceType::D2D1_DRAWTARGET) {
+return;
+}
+SetScissorToRect(nullptr);
+// XXX - This function is way too long, it should be split up soon to make
+// it more graspable!
+Flush();
+AutoSaveRestoreClippedOut restoreClippedOut(this);
+if (!IsOperatorBoundByMask(aOperator)) {
+restoreClippedOut.Save();
+}
+srView = static_cast<SourceSurfaceD2DTarget*>(aSurface)->GetSRView();
+EnsureViews();
+if (!mTempRTView) {
+// This view is only needed in this path.
+HRESULT hr = mDevice->CreateRenderTargetView(mTempTexture, nullptr, byRef(mTempRTView));
+if (FAILED(hr)) {
+gfxWarning() << "Failure to create RenderTargetView. Code: " << hr;
+return;
+}
+}
+RefPtr<ID3D10RenderTargetView> destRTView = mRTView;
+RefPtr<ID3D10Texture2D> destTexture;
+HRESULT hr;
+RefPtr<ID3D10Texture2D> maskTexture;
+RefPtr<ID3D10ShaderResourceView> maskSRView;
+IntRect clipBounds;
+if (mPushedClips.size()) {
+EnsureClipMaskTexture(&clipBounds);
+mDevice->CreateShaderResourceView(mCurrentClipMaskTexture, nullptr, byRef(maskSRView));
+}
+IntSize srcSurfSize;
+ID3D10RenderTargetView *rtViews;
+D3D10_VIEWPORT viewport;
+UINT stride = sizeof(Vertex);
+UINT offset = 0;
+ID3D10Buffer *buff = mPrivateData->mVB;
+mDevice->IASetPrimitiveTopology(D3D10_PRIMITIVE_TOPOLOGY_TRIANGLESTRIP);
+mDevice->IASetVertexBuffers(0, 1, &buff, &stride, &offset);
+mDevice->IASetInputLayout(mPrivateData->mInputLayout);
+mPrivateData->mEffect->GetVariableByName("QuadDesc")->AsVector()->
+SetFloatVector(ShaderConstantRectD3D10(-1.0f, 1.0f, 2.0f, -2.0f));
+mPrivateData->mEffect->GetVariableByName("TexCoords")->AsVector()->
+SetFloatVector(ShaderConstantRectD3D10(0, 0, 1.0f, 1.0f));
+// If we create a downsampled source surface we need to correct aOffset for that.
+Point correctedOffset = aOffset + aDest;
+// The 'practical' scaling factors.
+Float dsFactorX = 1.0f;
+Float dsFactorY = 1.0f;
+if (aSigma > 1.7f) {
+// In this case 9 samples of our original will not cover it. Generate the
+// mip levels for the original and create a downsampled version from
+// them. We generate a version downsampled so that a kernel for a sigma
+// of 1.7 will produce the right results.
+float blurWeights[9] = { 0.234671f, 0.197389f, 0.197389f, 0.117465f, 0.117465f, 0.049456f, 0.049456f, 0.014732f, 0.014732f };
+mPrivateData->mEffect->GetVariableByName("BlurWeights")->SetRawValue(blurWeights, 0, sizeof(blurWeights));
+CD3D10_TEXTURE2D_DESC desc(DXGI_FORMAT_B8G8R8A8_UNORM,
+aSurface->GetSize().width,
+aSurface->GetSize().height);
+desc.BindFlags = D3D10_BIND_RENDER_TARGET | D3D10_BIND_SHADER_RESOURCE;
+desc.MiscFlags = D3D10_RESOURCE_MISC_GENERATE_MIPS;
+RefPtr<ID3D10Texture2D> mipTexture;
+hr = mDevice->CreateTexture2D(&desc, nullptr, byRef(mipTexture));
+if (FAILED(hr)) {
+gfxWarning() << "Failure to create temporary texture. Size: " <<
+aSurface->GetSize() << " Code: " << hr;
+return;
+}
+IntSize dsSize = IntSize(int32_t(aSurface->GetSize().width * (1.7f / aSigma)),
+int32_t(aSurface->GetSize().height * (1.7f / aSigma)));
+if (dsSize.width < 1) {
+dsSize.width = 1;
+}
+if (dsSize.height < 1) {
+dsSize.height = 1;
+}
+dsFactorX = dsSize.width / Float(aSurface->GetSize().width);
+dsFactorY = dsSize.height / Float(aSurface->GetSize().height);
+correctedOffset.x *= dsFactorX;
+correctedOffset.y *= dsFactorY;
+desc = CD3D10_TEXTURE2D_DESC(DXGI_FORMAT_B8G8R8A8_UNORM,
+dsSize.width,
+dsSize.height, 1, 1);
+desc.BindFlags = D3D10_BIND_RENDER_TARGET | D3D10_BIND_SHADER_RESOURCE;
+RefPtr<ID3D10Texture2D> tmpDSTexture;
+hr = mDevice->CreateTexture2D(&desc, nullptr, byRef(tmpDSTexture));
+if (FAILED(hr)) {
+gfxWarning() << "Failure to create temporary texture. Size: " << dsSize << " Code: " << hr;
+return;
+}
+D3D10_BOX box;
+box.left = box.top = box.front = 0;
+box.back = 1;
+box.right = aSurface->GetSize().width;
+box.bottom = aSurface->GetSize().height;
+mDevice->CopySubresourceRegion(mipTexture, 0, 0, 0, 0, static_cast<SourceSurfaceD2DTarget*>(aSurface)->mTexture, 0, &box);
+mDevice->CreateShaderResourceView(mipTexture, nullptr,  byRef(srView));
+mDevice->GenerateMips(srView);
+RefPtr<ID3D10RenderTargetView> dsRTView;
+RefPtr<ID3D10ShaderResourceView> dsSRView;
+mDevice->CreateRenderTargetView(tmpDSTexture, nullptr,  byRef(dsRTView));
+mDevice->CreateShaderResourceView(tmpDSTexture, nullptr,  byRef(dsSRView));
+// We're not guaranteed the texture we created will be empty, we've
+// seen old content at least on NVidia drivers.
+float color[4] = { 0, 0, 0, 0 };
+mDevice->ClearRenderTargetView(dsRTView, color);
+rtViews = dsRTView;
+mDevice->OMSetRenderTargets(1, &rtViews, nullptr);
+viewport.MaxDepth = 1;
+viewport.MinDepth = 0;
+viewport.Height = dsSize.height;
+viewport.Width = dsSize.width;
+viewport.TopLeftX = 0;
+viewport.TopLeftY = 0;
+mDevice->RSSetViewports(1, &viewport);
+mPrivateData->mEffect->GetVariableByName("tex")->AsShaderResource()->SetResource(srView);
+mPrivateData->mEffect->GetTechniqueByName("SampleTexture")->
+GetPassByIndex(0)->Apply(0);
+mDevice->OMSetBlendState(GetBlendStateForOperator(CompositionOp::OP_OVER), nullptr, 0xffffffff);
+mDevice->Draw(4, 0);
+srcSurfSize = dsSize;
+srView = dsSRView;
+} else {
+// In this case generate a kernel to draw the blur directly to the temp
+// surf in one direction and to final in the other.
+float blurWeights[9];
+float normalizeFactor = 1.0f;
+if (aSigma != 0) {
+normalizeFactor = 1.0f / Float(sqrt(2 * M_PI * pow(aSigma, 2)));
+}
+blurWeights[0] = normalizeFactor;
+// XXX - We should actually optimize for Sigma = 0 here. We could use a
+// much simpler shader and save a lot of texture lookups.
+for (int i = 1; i < 9; i += 2) {
+if (aSigma != 0) {
+blurWeights[i] = blurWeights[i + 1] = normalizeFactor *
+exp(-pow(float((i + 1) / 2), 2) / (2 * pow(aSigma, 2)));
+} else {
+blurWeights[i] = blurWeights[i + 1] = 0;
+}
+}
+mPrivateData->mEffect->GetVariableByName("BlurWeights")->SetRawValue(blurWeights, 0, sizeof(blurWeights));
+viewport.MaxDepth = 1;
+viewport.MinDepth = 0;
+viewport.Height = aSurface->GetSize().height;
+viewport.Width = aSurface->GetSize().width;
+viewport.TopLeftX = 0;
+viewport.TopLeftY = 0;
+mDevice->RSSetViewports(1, &viewport);
+srcSurfSize = aSurface->GetSize();
+}
+// We may need to draw to a different intermediate surface if our temp
+// texture isn't big enough.
+bool needBiggerTemp = srcSurfSize.width > mSize.width ||
+srcSurfSize.height > mSize.height;
+RefPtr<ID3D10RenderTargetView> tmpRTView;
+RefPtr<ID3D10ShaderResourceView> tmpSRView;
+RefPtr<ID3D10Texture2D> tmpTexture;
+IntSize tmpSurfSize = mSize;
+if (!needBiggerTemp) {
+tmpRTView = mTempRTView;
+tmpSRView = mSRView;
+// There could still be content here!
+float color[4] = { 0, 0, 0, 0 };
+mDevice->ClearRenderTargetView(tmpRTView, color);
+} else {
+CD3D10_TEXTURE2D_DESC desc(DXGI_FORMAT_B8G8R8A8_UNORM,
+srcSurfSize.width,
+srcSurfSize.height,
+1, 1);
+desc.BindFlags = D3D10_BIND_RENDER_TARGET | D3D10_BIND_SHADER_RESOURCE;
+mDevice->CreateTexture2D(&desc, nullptr,  byRef(tmpTexture));
+mDevice->CreateRenderTargetView(tmpTexture, nullptr,  byRef(tmpRTView));
+mDevice->CreateShaderResourceView(tmpTexture, nullptr,  byRef(tmpSRView));
+tmpSurfSize = srcSurfSize;
+}
+rtViews = tmpRTView;
+mDevice->OMSetRenderTargets(1, &rtViews, nullptr);
+mPrivateData->mEffect->GetVariableByName("tex")->AsShaderResource()->SetResource(srView);
+// Premultiplied!
+float shadowColor[4] = { aColor.r * aColor.a, aColor.g * aColor.a,
+aColor.b * aColor.a, aColor.a };
+mPrivateData->mEffect->GetVariableByName("ShadowColor")->AsVector()->
+SetFloatVector(shadowColor);
+float pixelOffset = 1.0f / float(srcSurfSize.width);
+float blurOffsetsH[9] = { 0, pixelOffset, -pixelOffset,
+2.0f * pixelOffset, -2.0f * pixelOffset,
+3.0f * pixelOffset, -3.0f * pixelOffset,
+4.0f * pixelOffset, - 4.0f * pixelOffset };
+pixelOffset = 1.0f / float(tmpSurfSize.height);
+float blurOffsetsV[9] = { 0, pixelOffset, -pixelOffset,
+2.0f * pixelOffset, -2.0f * pixelOffset,
+3.0f * pixelOffset, -3.0f * pixelOffset,
+4.0f * pixelOffset, - 4.0f * pixelOffset };
+mPrivateData->mEffect->GetVariableByName("BlurOffsetsH")->
+SetRawValue(blurOffsetsH, 0, sizeof(blurOffsetsH));
+mPrivateData->mEffect->GetVariableByName("BlurOffsetsV")->
+SetRawValue(blurOffsetsV, 0, sizeof(blurOffsetsV));
+mPrivateData->mEffect->GetTechniqueByName("SampleTextureWithShadow")->
+GetPassByIndex(0)->Apply(0);
+mDevice->Draw(4, 0);
+viewport.MaxDepth = 1;
+viewport.MinDepth = 0;
+viewport.Height = mSize.height;
+viewport.Width = mSize.width;
+viewport.TopLeftX = 0;
+viewport.TopLeftY = 0;
+mDevice->RSSetViewports(1, &viewport);
+mPrivateData->mEffect->GetVariableByName("tex")->AsShaderResource()->SetResource(tmpSRView);
+rtViews = destRTView;
+mDevice->OMSetRenderTargets(1, &rtViews, nullptr);
+Point shadowDest = aDest + aOffset;
+mPrivateData->mEffect->GetVariableByName("QuadDesc")->AsVector()->
+SetFloatVector(ShaderConstantRectD3D10(-1.0f + ((shadowDest.x / mSize.width) * 2.0f),
+1.0f - (shadowDest.y / mSize.height * 2.0f),
+(Float(aSurface->GetSize().width) / mSize.width) * 2.0f,
+(-Float(aSurface->GetSize().height) / mSize.height) * 2.0f));
+mPrivateData->mEffect->GetVariableByName("TexCoords")->AsVector()->
+SetFloatVector(ShaderConstantRectD3D10(0, 0, Float(srcSurfSize.width) / tmpSurfSize.width,
+Float(srcSurfSize.height) / tmpSurfSize.height));
+if (mPushedClips.size()) {
+mPrivateData->mEffect->GetVariableByName("mask")->AsShaderResource()->SetResource(maskSRView);
+mPrivateData->mEffect->GetVariableByName("MaskTexCoords")->AsVector()->
+SetFloatVector(ShaderConstantRectD3D10(shadowDest.x / mSize.width, shadowDest.y / mSize.height,
+Float(aSurface->GetSize().width) / mSize.width,
+Float(aSurface->GetSize().height) / mSize.height));
+mPrivateData->mEffect->GetTechniqueByName("SampleTextureWithShadow")->
+GetPassByIndex(2)->Apply(0);
+SetScissorToRect(&clipBounds);
+} else {
+mPrivateData->mEffect->GetTechniqueByName("SampleTextureWithShadow")->
+GetPassByIndex(1)->Apply(0);
+}
+mDevice->OMSetBlendState(GetBlendStateForOperator(aOperator), nullptr, 0xffffffff);
+mDevice->Draw(4, 0);
+mPrivateData->mEffect->GetVariableByName("QuadDesc")->AsVector()->
+SetFloatVector(ShaderConstantRectD3D10(-1.0f + ((aDest.x / mSize.width) * 2.0f),
+1.0f - (aDest.y / mSize.height * 2.0f),
+(Float(aSurface->GetSize().width) / mSize.width) * 2.0f,
+(-Float(aSurface->GetSize().height) / mSize.height) * 2.0f));
+mPrivateData->mEffect->GetVariableByName("tex")->AsShaderResource()->SetResource(static_cast<SourceSurfaceD2DTarget*>(aSurface)->GetSRView());
+mPrivateData->mEffect->GetVariableByName("TexCoords")->AsVector()->
+SetFloatVector(ShaderConstantRectD3D10(0, 0, 1.0f, 1.0f));
+if (mPushedClips.size()) {
+mPrivateData->mEffect->GetVariableByName("MaskTexCoords")->AsVector()->
+SetFloatVector(ShaderConstantRectD3D10(aDest.x / mSize.width, aDest.y / mSize.height,
+Float(aSurface->GetSize().width) / mSize.width,
+Float(aSurface->GetSize().height) / mSize.height));
+mPrivateData->mEffect->GetTechniqueByName("SampleMaskedTexture")->
+GetPassByIndex(0)->Apply(0);
+// We've set the scissor rect here for the previous draw call.
+} else {
+mPrivateData->mEffect->GetTechniqueByName("SampleTexture")->
+GetPassByIndex(0)->Apply(0);
+}
+mDevice->OMSetBlendState(GetBlendStateForOperator(aOperator), nullptr, 0xffffffff);
+mDevice->Draw(4, 0);
+}
+void
+DrawTargetD2D::ClearRect(const Rect &aRect)
+{
+MarkChanged();
+PushClipRect(aRect);
+PopAllClips();
+AutoSaveRestoreClippedOut restoreClippedOut(this);
+D2D1_RECT_F clipRect;
+bool isPixelAligned;
+bool pushedClip = false;
+if (mTransform.IsRectilinear() &&
+GetDeviceSpaceClipRect(clipRect, isPixelAligned)) {
+if (mTransformDirty ||
+!mTransform.IsIdentity()) {
+mRT->SetTransform(D2D1::IdentityMatrix());
+mTransformDirty = true;
+}
+mRT->PushAxisAlignedClip(clipRect, isPixelAligned ? D2D1_ANTIALIAS_MODE_ALIASED : D2D1_ANTIALIAS_MODE_PER_PRIMITIVE);
+pushedClip = true;
+} else {
+FlushTransformToRT();
+restoreClippedOut.Save();
+}
+mRT->Clear(D2D1::ColorF(0, 0.0f));
+if (pushedClip) {
+mRT->PopAxisAlignedClip();
+}
+PopClip();
+return;
+}
+void
+DrawTargetD2D::CopySurface(SourceSurface *aSurface,
+const IntRect &aSourceRect,
+const IntPoint &aDestination)
+{
+MarkChanged();
+Rect srcRect(Float(aSourceRect.x), Float(aSourceRect.y),
+Float(aSourceRect.width), Float(aSourceRect.height));
+Rect dstRect(Float(aDestination.x), Float(aDestination.y),
+Float(aSourceRect.width), Float(aSourceRect.height));
+mRT->SetTransform(D2D1::IdentityMatrix());
+mTransformDirty = true;
+mRT->PushAxisAlignedClip(D2DRect(dstRect), D2D1_ANTIALIAS_MODE_ALIASED);
+mRT->Clear(D2D1::ColorF(0, 0.0f));
+mRT->PopAxisAlignedClip();
+RefPtr<ID2D1Bitmap> bitmap = GetBitmapForSurface(aSurface, srcRect);
+if (!bitmap) {
+return;
+}
+if (aSurface->GetFormat() == SurfaceFormat::A8) {
+RefPtr<ID2D1SolidColorBrush> brush;
+mRT->CreateSolidColorBrush(D2D1::ColorF(D2D1::ColorF::White),
+D2D1::BrushProperties(), byRef(brush));
+mRT->SetAntialiasMode(D2D1_ANTIALIAS_MODE_ALIASED);
+mRT->FillOpacityMask(bitmap, brush, D2D1_OPACITY_MASK_CONTENT_GRAPHICS);
+} else {
+mRT->DrawBitmap(bitmap, D2DRect(dstRect), 1.0f,
+D2D1_BITMAP_INTERPOLATION_MODE_LINEAR,
+D2DRect(srcRect));
+}
+}
+void
+DrawTargetD2D::FillRect(const Rect &aRect,
+const Pattern &aPattern,
+const DrawOptions &aOptions)
+{
+ID2D1RenderTarget *rt = GetRTForOperation(aOptions.mCompositionOp, aPattern);
+PrepareForDrawing(rt);
+rt->SetAntialiasMode(D2DAAMode(aOptions.mAntialiasMode));
+RefPtr<ID2D1Brush> brush = CreateBrushForPattern(aPattern, aOptions.mAlpha);
+if (brush) {
+rt->FillRectangle(D2DRect(aRect), brush);
+}
+FinalizeRTForOperation(aOptions.mCompositionOp, aPattern, aRect);
+}
+void
+DrawTargetD2D::StrokeRect(const Rect &aRect,
+const Pattern &aPattern,
+const StrokeOptions &aStrokeOptions,
+const DrawOptions &aOptions)
+{
+ID2D1RenderTarget *rt = GetRTForOperation(aOptions.mCompositionOp, aPattern);
+PrepareForDrawing(rt);
+rt->SetAntialiasMode(D2DAAMode(aOptions.mAntialiasMode));
+RefPtr<ID2D1Brush> brush = CreateBrushForPattern(aPattern, aOptions.mAlpha);
+RefPtr<ID2D1StrokeStyle> strokeStyle = CreateStrokeStyleForOptions(aStrokeOptions);
+if (brush && strokeStyle) {
+rt->DrawRectangle(D2DRect(aRect), brush, aStrokeOptions.mLineWidth, strokeStyle);
+}
+FinalizeRTForOperation(aOptions.mCompositionOp, aPattern, aRect);
+}
+void
+DrawTargetD2D::StrokeLine(const Point &aStart,
+const Point &aEnd,
+const Pattern &aPattern,
+const StrokeOptions &aStrokeOptions,
+const DrawOptions &aOptions)
+{
+ID2D1RenderTarget *rt = GetRTForOperation(aOptions.mCompositionOp, aPattern);
+PrepareForDrawing(rt);
+rt->SetAntialiasMode(D2DAAMode(aOptions.mAntialiasMode));
+RefPtr<ID2D1Brush> brush = CreateBrushForPattern(aPattern, aOptions.mAlpha);
+RefPtr<ID2D1StrokeStyle> strokeStyle = CreateStrokeStyleForOptions(aStrokeOptions);
+if (brush && strokeStyle) {
+rt->DrawLine(D2DPoint(aStart), D2DPoint(aEnd), brush, aStrokeOptions.mLineWidth, strokeStyle);
+}
+FinalizeRTForOperation(aOptions.mCompositionOp, aPattern, Rect(0, 0, Float(mSize.width), Float(mSize.height)));
+}
+void
+DrawTargetD2D::Stroke(const Path *aPath,
+const Pattern &aPattern,
+const StrokeOptions &aStrokeOptions,
+const DrawOptions &aOptions)
+{
+if (aPath->GetBackendType() != BackendType::DIRECT2D) {
+gfxDebug() << *this << ": Ignoring drawing call for incompatible path.";
+return;
+}
+const PathD2D *d2dPath = static_cast<const PathD2D*>(aPath);
+ID2D1RenderTarget *rt = GetRTForOperation(aOptions.mCompositionOp, aPattern);
+PrepareForDrawing(rt);
+rt->SetAntialiasMode(D2DAAMode(aOptions.mAntialiasMode));
+RefPtr<ID2D1Brush> brush = CreateBrushForPattern(aPattern, aOptions.mAlpha);
+RefPtr<ID2D1StrokeStyle> strokeStyle = CreateStrokeStyleForOptions(aStrokeOptions);
+if (brush && strokeStyle) {
+rt->DrawGeometry(d2dPath->mGeometry, brush, aStrokeOptions.mLineWidth, strokeStyle);
+}
+FinalizeRTForOperation(aOptions.mCompositionOp, aPattern, Rect(0, 0, Float(mSize.width), Float(mSize.height)));
+}
+void
+DrawTargetD2D::Fill(const Path *aPath,
+const Pattern &aPattern,
+const DrawOptions &aOptions)
+{
+if (aPath->GetBackendType() != BackendType::DIRECT2D) {
+gfxDebug() << *this << ": Ignoring drawing call for incompatible path.";
+return;
+}
+const PathD2D *d2dPath = static_cast<const PathD2D*>(aPath);
+ID2D1RenderTarget *rt = GetRTForOperation(aOptions.mCompositionOp, aPattern);
+PrepareForDrawing(rt);
+rt->SetAntialiasMode(D2DAAMode(aOptions.mAntialiasMode));
+RefPtr<ID2D1Brush> brush = CreateBrushForPattern(aPattern, aOptions.mAlpha);
+if (brush) {
+rt->FillGeometry(d2dPath->mGeometry, brush);
+}
+Rect bounds;
+if (aOptions.mCompositionOp != CompositionOp::OP_OVER) {
+D2D1_RECT_F d2dbounds;
+d2dPath->mGeometry->GetBounds(D2D1::IdentityMatrix(), &d2dbounds);
+bounds = ToRect(d2dbounds);
+}
+FinalizeRTForOperation(aOptions.mCompositionOp, aPattern, bounds);
+}
+void
+DrawTargetD2D::FillGlyphs(ScaledFont *aFont,
+const GlyphBuffer &aBuffer,
+const Pattern &aPattern,
+const DrawOptions &aOptions,
+const GlyphRenderingOptions* aRenderOptions)
+{
+if (aFont->GetType() != FontType::DWRITE) {
+gfxDebug() << *this << ": Ignoring drawing call for incompatible font.";
+return;
+}
+ScaledFontDWrite *font = static_cast<ScaledFontDWrite*>(aFont);
+IDWriteRenderingParams *params = nullptr;
+if (aRenderOptions) {
+if (aRenderOptions->GetType() != FontType::DWRITE) {
+gfxDebug() << *this << ": Ignoring incompatible GlyphRenderingOptions.";
+// This should never happen.
+MOZ_ASSERT(false);
+} else {
+params = static_cast<const GlyphRenderingOptionsDWrite*>(aRenderOptions)->mParams;
+}
+}
+AntialiasMode aaMode = font->GetDefaultAAMode();
+if (aOptions.mAntialiasMode != AntialiasMode::DEFAULT) {
+aaMode = aOptions.mAntialiasMode;
+}
+if (mFormat == SurfaceFormat::B8G8R8A8 && mPermitSubpixelAA &&
+aOptions.mCompositionOp == CompositionOp::OP_OVER && aPattern.GetType() == PatternType::COLOR &&
+aaMode == AntialiasMode::SUBPIXEL) {
+if (FillGlyphsManual(font, aBuffer,
+static_cast<const ColorPattern*>(&aPattern)->mColor,
+params, aOptions)) {
+return;
+}
+}
+ID2D1RenderTarget *rt = GetRTForOperation(aOptions.mCompositionOp, aPattern);
+PrepareForDrawing(rt);
+D2D1_TEXT_ANTIALIAS_MODE d2dAAMode = D2D1_TEXT_ANTIALIAS_MODE_DEFAULT;
+switch (aaMode) {
+case AntialiasMode::NONE:
+d2dAAMode = D2D1_TEXT_ANTIALIAS_MODE_ALIASED;
+break;
+case AntialiasMode::GRAY:
+d2dAAMode = D2D1_TEXT_ANTIALIAS_MODE_GRAYSCALE;
+break;
+case AntialiasMode::SUBPIXEL:
+d2dAAMode = D2D1_TEXT_ANTIALIAS_MODE_CLEARTYPE;
+break;
+default:
+d2dAAMode = D2D1_TEXT_ANTIALIAS_MODE_DEFAULT;
+}
+if (d2dAAMode == D2D1_TEXT_ANTIALIAS_MODE_CLEARTYPE &&
+mFormat != SurfaceFormat::B8G8R8X8) {
+d2dAAMode = D2D1_TEXT_ANTIALIAS_MODE_GRAYSCALE;
+}
+rt->SetTextAntialiasMode(d2dAAMode);
+if (rt != mRT || params != mTextRenderingParams) {
+rt->SetTextRenderingParams(params);
+if (rt == mRT) {
+mTextRenderingParams = params;
+}
+}
+RefPtr<ID2D1Brush> brush = CreateBrushForPattern(aPattern, aOptions.mAlpha);
+AutoDWriteGlyphRun autoRun;
+DWriteGlyphRunFromGlyphs(aBuffer, font, &autoRun);
+if (brush) {
+rt->DrawGlyphRun(D2D1::Point2F(), &autoRun, brush);
+}
+FinalizeRTForOperation(aOptions.mCompositionOp, aPattern, Rect(0, 0, (Float)mSize.width, (Float)mSize.height));
+}
+void
+DrawTargetD2D::Mask(const Pattern &aSource,
+const Pattern &aMask,
+const DrawOptions &aOptions)
+{
+ID2D1RenderTarget *rt = GetRTForOperation(aOptions.mCompositionOp, aSource);
+PrepareForDrawing(rt);
+RefPtr<ID2D1Brush> brush = CreateBrushForPattern(aSource, aOptions.mAlpha);
+RefPtr<ID2D1Brush> maskBrush = CreateBrushForPattern(aMask, 1.0f);
+RefPtr<ID2D1Layer> layer;
+layer = GetCachedLayer();
+rt->PushLayer(D2D1::LayerParameters(D2D1::InfiniteRect(), nullptr,
+D2D1_ANTIALIAS_MODE_PER_PRIMITIVE,
+D2D1::IdentityMatrix(),
+1.0f, maskBrush),
+layer);
+Rect rect(0, 0, (Float)mSize.width, (Float)mSize.height);
+Matrix mat = mTransform;
+mat.Invert();
+rt->FillRectangle(D2DRect(mat.TransformBounds(rect)), brush);
+PopCachedLayer(rt);
+FinalizeRTForOperation(aOptions.mCompositionOp, aSource, Rect(0, 0, (Float)mSize.width, (Float)mSize.height));
+}
+void
+DrawTargetD2D::PushClip(const Path *aPath)
+{
+if (aPath->GetBackendType() != BackendType::DIRECT2D) {
+gfxDebug() << *this << ": Ignoring clipping call for incompatible path.";
+return;
+}
+mCurrentClipMaskTexture = nullptr;
+mCurrentClippedGeometry = nullptr;
+RefPtr<PathD2D> pathD2D = static_cast<PathD2D*>(const_cast<Path*>(aPath));
+PushedClip clip;
+clip.mTransform = D2DMatrix(mTransform);
+clip.mPath = pathD2D;
+pathD2D->mGeometry->GetBounds(clip.mTransform, &clip.mBounds);
+clip.mLayer = GetCachedLayer();
+mPushedClips.push_back(clip);
+// The transform of clips is relative to the world matrix, since we use the total
+// transform for the clips, make the world matrix identity.
+mRT->SetTransform(D2D1::IdentityMatrix());
+mTransformDirty = true;
+if (mClipsArePushed) {
+PushD2DLayer(mRT, pathD2D->mGeometry, clip.mLayer, clip.mTransform);
+}
+}
+void
+DrawTargetD2D::PushClipRect(const Rect &aRect)
+{
+mCurrentClipMaskTexture = nullptr;
+mCurrentClippedGeometry = nullptr;
+if (!mTransform.IsRectilinear()) {
+// Whoops, this isn't a rectangle in device space, Direct2D will not deal
+// with this transform the way we want it to.
+// See remarks: http://msdn.microsoft.com/en-us/library/dd316860%28VS.85%29.aspx
+RefPtr<PathBuilder> pathBuilder = CreatePathBuilder();
+pathBuilder->MoveTo(aRect.TopLeft());
+pathBuilder->LineTo(aRect.TopRight());
+pathBuilder->LineTo(aRect.BottomRight());
+pathBuilder->LineTo(aRect.BottomLeft());
+pathBuilder->Close();
+RefPtr<Path> path = pathBuilder->Finish();
+return PushClip(path);
+}
+PushedClip clip;
+Rect rect = mTransform.TransformBounds(aRect);
+IntRect intRect;
+clip.mIsPixelAligned = rect.ToIntRect(&intRect);
+// Do not store the transform, just store the device space rectangle directly.
+clip.mBounds = D2DRect(rect);
+mPushedClips.push_back(clip);
+mRT->SetTransform(D2D1::IdentityMatrix());
+mTransformDirty = true;
+if (mClipsArePushed) {
+mRT->PushAxisAlignedClip(clip.mBounds, clip.mIsPixelAligned ? D2D1_ANTIALIAS_MODE_ALIASED : D2D1_ANTIALIAS_MODE_PER_PRIMITIVE);
+}
+}
+void
+DrawTargetD2D::PopClip()
+{
+mCurrentClipMaskTexture = nullptr;
+mCurrentClippedGeometry = nullptr;
+if (mClipsArePushed) {
+if (mPushedClips.back().mLayer) {
+PopCachedLayer(mRT);
+} else {
+mRT->PopAxisAlignedClip();
+}
+}
+mPushedClips.pop_back();
+}
+TemporaryRef<SourceSurface>
+DrawTargetD2D::CreateSourceSurfaceFromData(unsigned char *aData,
+const IntSize &aSize,
+int32_t aStride,
+SurfaceFormat aFormat) const
+{
+RefPtr<SourceSurfaceD2D> newSurf = new SourceSurfaceD2D();
+if (!newSurf->InitFromData(aData, aSize, aStride, aFormat, mRT)) {
+return nullptr;
+}
+return newSurf;
+}
+TemporaryRef<SourceSurface>
+DrawTargetD2D::OptimizeSourceSurface(SourceSurface *aSurface) const
+{
+if (aSurface->GetType() == SurfaceType::D2D1_BITMAP ||
+aSurface->GetType() == SurfaceType::D2D1_DRAWTARGET) {
+return aSurface;
+}
+RefPtr<DataSourceSurface> data = aSurface->GetDataSurface();
+DataSourceSurface::MappedSurface map;
+if (!data->Map(DataSourceSurface::MapType::READ, &map)) {
+return nullptr;
+}
+RefPtr<SourceSurfaceD2D> newSurf = new SourceSurfaceD2D();
+bool success = newSurf->InitFromData(map.mData, data->GetSize(), map.mStride, data->GetFormat(), mRT);
+data->Unmap();
+if (!success) {
+return data;
+}
+return newSurf;
+}
+TemporaryRef<SourceSurface>
+DrawTargetD2D::CreateSourceSurfaceFromNativeSurface(const NativeSurface &aSurface) const
+{
+if (aSurface.mType != NativeSurfaceType::D3D10_TEXTURE) {
+gfxDebug() << *this << ": Failure to create source surface from non-D3D10 texture native surface.";
+return nullptr;
+}
+RefPtr<SourceSurfaceD2D> newSurf = new SourceSurfaceD2D();
+if (!newSurf->InitFromTexture(static_cast<ID3D10Texture2D*>(aSurface.mSurface),
+aSurface.mFormat,
+mRT))
+{
+gfxWarning() << *this << ": Failed to create SourceSurface from texture.";
+return nullptr;
+}
+return newSurf;
+}
+TemporaryRef<DrawTarget>
+DrawTargetD2D::CreateSimilarDrawTarget(const IntSize &aSize, SurfaceFormat aFormat) const
+{
+RefPtr<DrawTargetD2D> newTarget =
+new DrawTargetD2D();
+if (!newTarget->Init(aSize, aFormat)) {
+gfxDebug() << *this << ": Failed to create optimal draw target. Size: " << aSize;
+return nullptr;
+}
+return newTarget;
+}
+TemporaryRef<PathBuilder>
+DrawTargetD2D::CreatePathBuilder(FillRule aFillRule) const
+{
+RefPtr<ID2D1PathGeometry> path;
+HRESULT hr = factory()->CreatePathGeometry(byRef(path));
+if (FAILED(hr)) {
+gfxWarning() << "Failed to create Direct2D Path Geometry. Code: " << hr;
+return nullptr;
+}
+RefPtr<ID2D1GeometrySink> sink;
+hr = path->Open(byRef(sink));
+if (FAILED(hr)) {
+gfxWarning() << "Failed to access Direct2D Path Geometry. Code: " << hr;
+return nullptr;
+}
+if (aFillRule == FillRule::FILL_WINDING) {
+sink->SetFillMode(D2D1_FILL_MODE_WINDING);
+}
+return new PathBuilderD2D(sink, path, aFillRule);
+}
+TemporaryRef<GradientStops>
+DrawTargetD2D::CreateGradientStops(GradientStop *rawStops, uint32_t aNumStops, ExtendMode aExtendMode) const
+{
+D2D1_GRADIENT_STOP *stops = new D2D1_GRADIENT_STOP[aNumStops];
+for (uint32_t i = 0; i < aNumStops; i++) {
+stops[i].position = rawStops[i].offset;
+stops[i].color = D2DColor(rawStops[i].color);
+}
+RefPtr<ID2D1GradientStopCollection> stopCollection;
+HRESULT hr =
+mRT->CreateGradientStopCollection(stops, aNumStops,
+D2D1_GAMMA_2_2, D2DExtend(aExtendMode),
+byRef(stopCollection));
+delete [] stops;
+if (FAILED(hr)) {
+gfxWarning() << "Failed to create GradientStopCollection. Code: " << hr;
+return nullptr;
+}
+return new GradientStopsD2D(stopCollection);
+}
+TemporaryRef<FilterNode>
+DrawTargetD2D::CreateFilter(FilterType aType)
+{
+#ifdef USE_D2D1_1
+RefPtr<ID2D1DeviceContext> dc;
+HRESULT hr = mRT->QueryInterface((ID2D1DeviceContext**)byRef(dc));
+if (SUCCEEDED(hr)) {
+return FilterNodeD2D1::Create(this, dc, aType);
+}
+#endif
+return FilterNodeSoftware::Create(aType);
+}
+void*
+DrawTargetD2D::GetNativeSurface(NativeSurfaceType aType)
+{
+if (aType != NativeSurfaceType::D3D10_TEXTURE) {
+return nullptr;
+}
+return mTexture;
+}
+/*
+* Public functions
+*/
+bool
+DrawTargetD2D::Init(const IntSize &aSize, SurfaceFormat aFormat)
+{
+HRESULT hr;
+mSize = aSize;
+mFormat = aFormat;
+if (!Factory::GetDirect3D10Device()) {
+gfxDebug() << "Failed to Init Direct2D DrawTarget (No D3D10 Device set.)";
+return false;
+}
+mDevice = Factory::GetDirect3D10Device();
+CD3D10_TEXTURE2D_DESC desc(DXGIFormat(aFormat),
+mSize.width,
+mSize.height,
+1, 1);
+desc.BindFlags = D3D10_BIND_RENDER_TARGET | D3D10_BIND_SHADER_RESOURCE;
+hr = mDevice->CreateTexture2D(&desc, nullptr, byRef(mTexture));
+if (FAILED(hr)) {
+gfxDebug() << "Failed to init Direct2D DrawTarget. Size: " << mSize << " Code: " << hr;
+return false;
+}
+if (!InitD2DRenderTarget()) {
+return false;
+}
+mRT->Clear(D2D1::ColorF(0, 0));
+return true;
+}
+bool
+DrawTargetD2D::Init(ID3D10Texture2D *aTexture, SurfaceFormat aFormat)
+{
+HRESULT hr;
+mTexture = aTexture;
+mFormat = aFormat;
+if (!mTexture) {
+gfxDebug() << "No valid texture for Direct2D draw target initialization.";
+return false;
+}
+RefPtr<ID3D10Device> device;
+mTexture->GetDevice(byRef(device));
+hr = device->QueryInterface((ID3D10Device1**)byRef(mDevice));
+if (FAILED(hr)) {
+gfxWarning() << "Failed to get D3D10 device from texture.";
+return false;
+}
+D3D10_TEXTURE2D_DESC desc;
+mTexture->GetDesc(&desc);
+mSize.width = desc.Width;
+mSize.height = desc.Height;
+return InitD2DRenderTarget();
+}
+// {0D398B49-AE7B-416F-B26D-EA3C137D1CF7}
+static const GUID sPrivateDataD2D =
+{ 0xd398b49, 0xae7b, 0x416f, { 0xb2, 0x6d, 0xea, 0x3c, 0x13, 0x7d, 0x1c, 0xf7 } };
+bool
+DrawTargetD2D::InitD3D10Data()
+{
+HRESULT hr;
+UINT privateDataSize;
+privateDataSize = sizeof(mPrivateData);
+hr = mDevice->GetPrivateData(sPrivateDataD2D, &privateDataSize, &mPrivateData);
+if (SUCCEEDED(hr)) {
+return true;
+}
+mPrivateData = new PrivateD3D10DataD2D;
+decltype(D3D10CreateEffectFromMemory)* createD3DEffect;
+HMODULE d3dModule = LoadLibraryW(L"d3d10_1.dll");
+createD3DEffect = (decltype(D3D10CreateEffectFromMemory)*)
+GetProcAddress(d3dModule, "D3D10CreateEffectFromMemory");
+hr = createD3DEffect((void*)d2deffect, sizeof(d2deffect), 0, mDevice, nullptr, byRef(mPrivateData->mEffect));
+if (FAILED(hr)) {
+gfxWarning() << "Failed to initialize Direct2D required effects. Code: " << hr;
+return false;
+}
+privateDataSize = sizeof(mPrivateData);
+mDevice->SetPrivateData(sPrivateDataD2D, privateDataSize, &mPrivateData);
+D3D10_INPUT_ELEMENT_DESC layout[] =
+{
+{ "POSITION", 0, DXGI_FORMAT_R32G32_FLOAT, 0, 0, D3D10_INPUT_PER_VERTEX_DATA, 0 },
+};
+D3D10_PASS_DESC passDesc;
+mPrivateData->mEffect->GetTechniqueByName("SampleTexture")->GetPassByIndex(0)->GetDesc(&passDesc);
+hr = mDevice->CreateInputLayout(layout,
+sizeof(layout) / sizeof(D3D10_INPUT_ELEMENT_DESC),
+passDesc.pIAInputSignature,
+passDesc.IAInputSignatureSize,
+byRef(mPrivateData->mInputLayout));
+if (FAILED(hr)) {
+gfxWarning() << "Failed to initialize Direct2D required InputLayout. Code: " << hr;
+return false;
+}
+D3D10_SUBRESOURCE_DATA data;
+Vertex vertices[] = { {0.0, 0.0}, {1.0, 0.0}, {0.0, 1.0}, {1.0, 1.0} };
+data.pSysMem = vertices;
+CD3D10_BUFFER_DESC bufferDesc(sizeof(vertices), D3D10_BIND_VERTEX_BUFFER);
+hr = mDevice->CreateBuffer(&bufferDesc, &data, byRef(mPrivateData->mVB));
+if (FAILED(hr)) {
+gfxWarning() << "Failed to initialize Direct2D required VertexBuffer. Code: " << hr;
+return false;
+}
+return true;
+}
+/*
+* Private helpers
+*/
+uint32_t
+DrawTargetD2D::GetByteSize() const
+{
+return mSize.width * mSize.height * BytesPerPixel(mFormat);
+}
+TemporaryRef<ID2D1Layer>
+DrawTargetD2D::GetCachedLayer()
+{
+RefPtr<ID2D1Layer> layer;
+if (mCurrentCachedLayer < 5) {
+if (!mCachedLayers[mCurrentCachedLayer]) {
+mRT->CreateLayer(byRef(mCachedLayers[mCurrentCachedLayer]));
+mVRAMUsageDT += GetByteSize();
+}
+layer = mCachedLayers[mCurrentCachedLayer];
+} else {
+mRT->CreateLayer(byRef(layer));
+}
+mCurrentCachedLayer++;
+return layer;
+}
+void
+DrawTargetD2D::PopCachedLayer(ID2D1RenderTarget *aRT)
+{
+aRT->PopLayer();
+mCurrentCachedLayer--;
+}
+bool
+DrawTargetD2D::InitD2DRenderTarget()
+{
+if (!factory()) {
+return false;
+}
+mRT = CreateRTForTexture(mTexture, mFormat);
+if (!mRT) {
+return false;
+}
+mRT->BeginDraw();
+if (mFormat == SurfaceFormat::B8G8R8X8) {
+mRT->SetTextAntialiasMode(D2D1_TEXT_ANTIALIAS_MODE_CLEARTYPE);
+}
+mVRAMUsageDT += GetByteSize();
+return InitD3D10Data();
+}
+void
+DrawTargetD2D::PrepareForDrawing(ID2D1RenderTarget *aRT)
+{
+if (!mClipsArePushed || aRT == mTempRT) {
+if (mPushedClips.size()) {
+// The transform of clips is relative to the world matrix, since we use the total
+// transform for the clips, make the world matrix identity.
+aRT->SetTransform(D2D1::IdentityMatrix());
+if (aRT == mRT) {
+mTransformDirty = true;
+mClipsArePushed = true;
+}
+PushClipsToRT(aRT);
+}
+}
+FlushTransformToRT();
+MarkChanged();
+if (aRT == mTempRT) {
+mTempRT->SetTransform(D2DMatrix(mTransform));
+}
+}
+void
+DrawTargetD2D::MarkChanged()
+{
+if (mSnapshot) {
+if (mSnapshot->hasOneRef()) {
+// Just destroy it, since no-one else knows about it.
+mSnapshot = nullptr;
+} else {
+mSnapshot->DrawTargetWillChange();
+// The snapshot will no longer depend on this target.
+MOZ_ASSERT(!mSnapshot);
+}
+}
+if (mDependentTargets.size()) {
+// Copy mDependentTargets since the Flush()es below will modify it.
+TargetSet tmpTargets = mDependentTargets;
+for (TargetSet::iterator iter = tmpTargets.begin();
+iter != tmpTargets.end(); iter++) {
+(*iter)->Flush();
+}
+// The Flush() should have broken all dependencies on this target.
+MOZ_ASSERT(!mDependentTargets.size());
+}
+}
+ID3D10BlendState*
+DrawTargetD2D::GetBlendStateForOperator(CompositionOp aOperator)
+{
+size_t operatorIndex = static_cast<size_t>(aOperator);
+if (mPrivateData->mBlendStates[operatorIndex]) {
+return mPrivateData->mBlendStates[operatorIndex];
+}
+D3D10_BLEND_DESC desc;
+memset(&desc, 0, sizeof(D3D10_BLEND_DESC));
+desc.AlphaToCoverageEnable = FALSE;
+desc.BlendEnable[0] = TRUE;
+desc.RenderTargetWriteMask[0] = D3D10_COLOR_WRITE_ENABLE_ALL;
+desc.BlendOp = desc.BlendOpAlpha = D3D10_BLEND_OP_ADD;
+switch (aOperator) {
+case CompositionOp::OP_ADD:
+desc.SrcBlend = desc.SrcBlendAlpha = D3D10_BLEND_ONE;
+desc.DestBlend = desc.DestBlendAlpha = D3D10_BLEND_ONE;
+break;
+case CompositionOp::OP_IN:
+desc.SrcBlend = desc.SrcBlendAlpha = D3D10_BLEND_DEST_ALPHA;
+desc.DestBlend = desc.DestBlendAlpha = D3D10_BLEND_ZERO;
+break;
+case CompositionOp::OP_OUT:
+desc.SrcBlend = desc.SrcBlendAlpha = D3D10_BLEND_INV_DEST_ALPHA;
+desc.DestBlend = desc.DestBlendAlpha = D3D10_BLEND_ZERO;
+break;
+case CompositionOp::OP_ATOP:
+desc.SrcBlend = desc.SrcBlendAlpha = D3D10_BLEND_DEST_ALPHA;
+desc.DestBlend = desc.DestBlendAlpha = D3D10_BLEND_INV_SRC_ALPHA;
+break;
+case CompositionOp::OP_DEST_IN:
+desc.SrcBlend = desc.SrcBlendAlpha = D3D10_BLEND_ZERO;
+desc.DestBlend = desc.DestBlendAlpha = D3D10_BLEND_SRC_ALPHA;
+break;
+case CompositionOp::OP_DEST_OUT:
+desc.SrcBlend = desc.SrcBlendAlpha = D3D10_BLEND_ZERO;
+desc.DestBlend = desc.DestBlendAlpha = D3D10_BLEND_INV_SRC_ALPHA;
+break;
+case CompositionOp::OP_DEST_ATOP:
+desc.SrcBlend = desc.SrcBlendAlpha = D3D10_BLEND_INV_DEST_ALPHA;
+desc.DestBlend = desc.DestBlendAlpha = D3D10_BLEND_SRC_ALPHA;
+break;
+case CompositionOp::OP_DEST_OVER:
+desc.SrcBlend = desc.SrcBlendAlpha = D3D10_BLEND_INV_DEST_ALPHA;
+desc.DestBlend = desc.DestBlendAlpha = D3D10_BLEND_ONE;
+break;
+case CompositionOp::OP_XOR:
+desc.SrcBlend = desc.SrcBlendAlpha = D3D10_BLEND_INV_DEST_ALPHA;
+desc.DestBlend = desc.DestBlendAlpha = D3D10_BLEND_INV_SRC_ALPHA;
+break;
+case CompositionOp::OP_SOURCE:
+desc.SrcBlend = desc.SrcBlendAlpha = D3D10_BLEND_ONE;
+desc.DestBlend = desc.DestBlendAlpha = D3D10_BLEND_ZERO;
+break;
+default:
+desc.SrcBlend = desc.SrcBlendAlpha = D3D10_BLEND_ONE;
+desc.DestBlend = desc.DestBlendAlpha = D3D10_BLEND_INV_SRC_ALPHA;
+}
+mDevice->CreateBlendState(&desc, byRef(mPrivateData->mBlendStates[operatorIndex]));
+return mPrivateData->mBlendStates[operatorIndex];
+}
+/* This function prepares the temporary RT for drawing and returns it when a
+* drawing operation other than OVER is required.
+*/
+ID2D1RenderTarget*
+DrawTargetD2D::GetRTForOperation(CompositionOp aOperator, const Pattern &aPattern)
+{
+if (aOperator == CompositionOp::OP_OVER && IsPatternSupportedByD2D(aPattern)) {
+return mRT;
+}
+PopAllClips();
+if (aOperator > CompositionOp::OP_XOR) {
+mRT->Flush();
+}
+if (mTempRT) {
+mTempRT->Clear(D2D1::ColorF(0, 0));
+return mTempRT;
+}
+EnsureViews();
+if (!mRTView || !mSRView) {
+gfxDebug() << *this << ": Failed to get required views. Defaulting to CompositionOp::OP_OVER.";
+return mRT;
+}
+mTempRT = CreateRTForTexture(mTempTexture, SurfaceFormat::B8G8R8A8);
+if (!mTempRT) {
+return mRT;
+}
+mVRAMUsageDT += GetByteSize();
+mTempRT->BeginDraw();
+mTempRT->Clear(D2D1::ColorF(0, 0));
+return mTempRT;
+}
+/* This function blends back the content of a drawing operation (drawn to an
+* empty surface with OVER, so the surface now contains the source operation
+* contents) to the rendertarget using the requested composition operation.
+* In order to respect clip for operations which are unbound by their mask,
+* the old content of the surface outside the clipped area may be blended back
+* to the surface.
+*/
+void
+DrawTargetD2D::FinalizeRTForOperation(CompositionOp aOperator, const Pattern &aPattern, const Rect &aBounds)
+{
+if (aOperator == CompositionOp::OP_OVER && IsPatternSupportedByD2D(aPattern)) {
+return;
+}
+if (!mTempRT) {
+return;
+}
+PopClipsFromRT(mTempRT);
+mRT->Flush();
+mTempRT->Flush();
+AutoSaveRestoreClippedOut restoreClippedOut(this);
+bool needsWriteBack =
+!IsOperatorBoundByMask(aOperator) && mPushedClips.size();
+if (needsWriteBack) {
+restoreClippedOut.Save();
+}
+ID3D10RenderTargetView *rtViews = mRTView;
+mDevice->OMSetRenderTargets(1, &rtViews, nullptr);
+UINT stride = sizeof(Vertex);
+UINT offset = 0;
+ID3D10Buffer *buff = mPrivateData->mVB;
+mDevice->IASetPrimitiveTopology(D3D10_PRIMITIVE_TOPOLOGY_TRIANGLESTRIP);
+mDevice->IASetVertexBuffers(0, 1, &buff, &stride, &offset);
+mDevice->IASetInputLayout(mPrivateData->mInputLayout);
+D3D10_VIEWPORT viewport;
+viewport.MaxDepth = 1;
+viewport.MinDepth = 0;
+viewport.Height = mSize.height;
+viewport.Width = mSize.width;
+viewport.TopLeftX = 0;
+viewport.TopLeftY = 0;
+RefPtr<ID3D10Texture2D> tmpTexture;
+RefPtr<ID3D10ShaderResourceView> mBckSRView;
+mDevice->RSSetViewports(1, &viewport);
+mPrivateData->mEffect->GetVariableByName("QuadDesc")->AsVector()->
+SetFloatVector(ShaderConstantRectD3D10(-1.0f, 1.0f, 2.0f, -2.0f));
+if (IsPatternSupportedByD2D(aPattern)) {
+mPrivateData->mEffect->GetVariableByName("TexCoords")->AsVector()->
+SetFloatVector(ShaderConstantRectD3D10(0, 0, 1.0f, 1.0f));
+mPrivateData->mEffect->GetVariableByName("tex")->AsShaderResource()->SetResource(mSRView);
+// Handle the case where we blend with the backdrop
+if (aOperator > CompositionOp::OP_XOR) {
+IntSize size = mSize;
+SurfaceFormat format = mFormat;
+CD3D10_TEXTURE2D_DESC desc(DXGIFormat(format), size.width, size.height, 1, 1);
+desc.BindFlags = D3D10_BIND_RENDER_TARGET | D3D10_BIND_SHADER_RESOURCE;
+HRESULT hr = mDevice->CreateTexture2D(&desc, nullptr, byRef(tmpTexture));
+if (FAILED(hr)) {
+gfxWarning() << "Failed to create temporary texture to hold surface data.";
+return;
+}
+mDevice->CopyResource(tmpTexture, mTexture);
+if (FAILED(hr)) {
+gfxWarning() << *this << "Failed to create shader resource view for temp texture. Code: " << hr;
+return;
+}
+DrawTargetD2D::Flush();
+hr = mDevice->CreateShaderResourceView(tmpTexture, nullptr, byRef(mBckSRView));
+if (FAILED(hr)) {
+gfxWarning() << *this << "Failed to create shader resource view for temp texture. Code: " << hr;
+return;
+}
+unsigned int compop = (unsigned int)aOperator - (unsigned int)CompositionOp::OP_XOR;
+mPrivateData->mEffect->GetVariableByName("bcktex")->AsShaderResource()->SetResource(mBckSRView);
+mPrivateData->mEffect->GetVariableByName("blendop")->AsScalar()->SetInt(compop);
+if (aOperator > CompositionOp::OP_EXCLUSION)
+mPrivateData->mEffect->GetTechniqueByName("SampleTextureForNonSeparableBlending")->
+GetPassByIndex(0)->Apply(0);
+else if (aOperator > CompositionOp::OP_COLOR_DODGE)
+mPrivateData->mEffect->GetTechniqueByName("SampleTextureForSeparableBlending_2")->
+GetPassByIndex(0)->Apply(0);
+else
+mPrivateData->mEffect->GetTechniqueByName("SampleTextureForSeparableBlending_1")->
+GetPassByIndex(0)->Apply(0);
+}
+else {
+mPrivateData->mEffect->GetTechniqueByName("SampleTexture")->GetPassByIndex(0)->Apply(0);
+}
+} else if (aPattern.GetType() == PatternType::RADIAL_GRADIENT) {
+const RadialGradientPattern *pat = static_cast<const RadialGradientPattern*>(&aPattern);
+if (pat->mCenter1 == pat->mCenter2 && pat->mRadius1 == pat->mRadius2) {
+// Draw nothing!
+return;
+}
+mPrivateData->mEffect->GetVariableByName("mask")->AsShaderResource()->SetResource(mSRView);
+SetupEffectForRadialGradient(pat);
+}
+mDevice->OMSetBlendState(GetBlendStateForOperator(aOperator), nullptr, 0xffffffff);
+SetScissorToRect(nullptr);
+mDevice->Draw(4, 0);
+}
+static D2D1_RECT_F
+IntersectRect(const D2D1_RECT_F& aRect1, const D2D1_RECT_F& aRect2)
+{
+D2D1_RECT_F result;
+result.left = max(aRect1.left, aRect2.left);
+result.top = max(aRect1.top, aRect2.top);
+result.right = min(aRect1.right, aRect2.right);
+result.bottom = min(aRect1.bottom, aRect2.bottom);
+result.right = max(result.right, result.left);
+result.bottom = max(result.bottom, result.top);
+return result;
+}
+bool
+DrawTargetD2D::GetDeviceSpaceClipRect(D2D1_RECT_F& aClipRect, bool& aIsPixelAligned)
+{
+if (!mPushedClips.size()) {
+return false;
+}
+std::vector<DrawTargetD2D::PushedClip>::iterator iter = mPushedClips.begin();
+if (iter->mPath) {
+return false;
+}
+aClipRect = iter->mBounds;
+aIsPixelAligned = iter->mIsPixelAligned;
+iter++;
+for (;iter != mPushedClips.end(); iter++) {
+if (iter->mPath) {
+return false;
+}
+aClipRect = IntersectRect(aClipRect, iter->mBounds);
+if (!iter->mIsPixelAligned) {
+aIsPixelAligned = false;
+}
+}
+return true;
+}
+TemporaryRef<ID2D1Geometry>
+DrawTargetD2D::GetClippedGeometry(IntRect *aClipBounds)
+{
+if (mCurrentClippedGeometry) {
+*aClipBounds = mCurrentClipBounds;
+return mCurrentClippedGeometry;
+}
+mCurrentClipBounds = IntRect(IntPoint(0, 0), mSize);
+// if pathGeom is null then pathRect represents the path.
+RefPtr<ID2D1Geometry> pathGeom;
+D2D1_RECT_F pathRect;
+bool pathRectIsAxisAligned = false;
+std::vector<DrawTargetD2D::PushedClip>::iterator iter = mPushedClips.begin();
+if (iter->mPath) {
+pathGeom = GetTransformedGeometry(iter->mPath->GetGeometry(), iter->mTransform);
+} else {
+pathRect = iter->mBounds;
+pathRectIsAxisAligned = iter->mIsPixelAligned;
+}
+iter++;
+for (;iter != mPushedClips.end(); iter++) {
+// Do nothing but add it to the current clip bounds.
+if (!iter->mPath && iter->mIsPixelAligned) {
+mCurrentClipBounds.IntersectRect(mCurrentClipBounds,
+IntRect(int32_t(iter->mBounds.left), int32_t(iter->mBounds.top),
+int32_t(iter->mBounds.right - iter->mBounds.left),
+int32_t(iter->mBounds.bottom - iter->mBounds.top)));
+continue;
+}
+if (!pathGeom) {
+if (pathRectIsAxisAligned) {
+mCurrentClipBounds.IntersectRect(mCurrentClipBounds,
+IntRect(int32_t(pathRect.left), int32_t(pathRect.top),
+int32_t(pathRect.right - pathRect.left),
+int32_t(pathRect.bottom - pathRect.top)));
+}
+if (iter->mPath) {
+// See if pathRect needs to go into the path geometry.
+if (!pathRectIsAxisAligned) {
+pathGeom = ConvertRectToGeometry(pathRect);
+} else {
+pathGeom = GetTransformedGeometry(iter->mPath->GetGeometry(), iter->mTransform);
+}
+} else {
+pathRect = IntersectRect(pathRect, iter->mBounds);
+pathRectIsAxisAligned = false;
+continue;
+}
+}
+RefPtr<ID2D1PathGeometry> newGeom;
+factory()->CreatePathGeometry(byRef(newGeom));
+RefPtr<ID2D1GeometrySink> currentSink;
+newGeom->Open(byRef(currentSink));
+if (iter->mPath) {
+pathGeom->CombineWithGeometry(iter->mPath->GetGeometry(), D2D1_COMBINE_MODE_INTERSECT,
+iter->mTransform, currentSink);
+} else {
+RefPtr<ID2D1Geometry> rectGeom = ConvertRectToGeometry(iter->mBounds);
+pathGeom->CombineWithGeometry(rectGeom, D2D1_COMBINE_MODE_INTERSECT,
+D2D1::IdentityMatrix(), currentSink);
+}
+currentSink->Close();
+pathGeom = newGeom.forget();
+}
+// For now we need mCurrentClippedGeometry to always be non-nullptr. This
+// method might seem a little strange but it is just fine, if pathGeom is
+// nullptr pathRect will always still contain 1 clip unaccounted for
+// regardless of mCurrentClipBounds.
+if (!pathGeom) {
+pathGeom = ConvertRectToGeometry(pathRect);
+}
+mCurrentClippedGeometry = pathGeom.forget();
+*aClipBounds = mCurrentClipBounds;
+return mCurrentClippedGeometry;
+}
+TemporaryRef<ID2D1RenderTarget>
+DrawTargetD2D::CreateRTForTexture(ID3D10Texture2D *aTexture, SurfaceFormat aFormat)
+{
+HRESULT hr;
+RefPtr<IDXGISurface> surface;
+RefPtr<ID2D1RenderTarget> rt;
+hr = aTexture->QueryInterface((IDXGISurface**)byRef(surface));
+if (FAILED(hr)) {
+gfxWarning() << "Failed to QI texture to surface.";
+return nullptr;
+}
+D3D10_TEXTURE2D_DESC desc;
+aTexture->GetDesc(&desc);
+D2D1_ALPHA_MODE alphaMode = D2D1_ALPHA_MODE_PREMULTIPLIED;
+if (aFormat == SurfaceFormat::B8G8R8X8 && aTexture == mTexture) {
+alphaMode = D2D1_ALPHA_MODE_IGNORE;
+}
+D2D1_RENDER_TARGET_PROPERTIES props =
+D2D1::RenderTargetProperties(D2D1_RENDER_TARGET_TYPE_DEFAULT, D2D1::PixelFormat(desc.Format, alphaMode));
+hr = factory()->CreateDxgiSurfaceRenderTarget(surface, props, byRef(rt));
+if (FAILED(hr)) {
+gfxWarning() << "Failed to create D2D render target for texture.";
+return nullptr;
+}
+return rt;
+}
+void
+DrawTargetD2D::EnsureViews()
+{
+if (mTempTexture && mSRView && mRTView) {
+return;
+}
+HRESULT hr;
+CD3D10_TEXTURE2D_DESC desc(DXGI_FORMAT_B8G8R8A8_UNORM,
+mSize.width,
+mSize.height,
+1, 1);
+desc.BindFlags = D3D10_BIND_RENDER_TARGET | D3D10_BIND_SHADER_RESOURCE;
+hr = mDevice->CreateTexture2D(&desc, nullptr, byRef(mTempTexture));
+if (FAILED(hr)) {
+gfxWarning() << *this << "Failed to create temporary texture for rendertarget. Size: "
+<< mSize << " Code: " << hr;
+return;
+}
+hr = mDevice->CreateShaderResourceView(mTempTexture, nullptr, byRef(mSRView));
+if (FAILED(hr)) {
+gfxWarning() << *this << "Failed to create shader resource view for temp texture. Code: " << hr;
+return;
+}
+hr = mDevice->CreateRenderTargetView(mTexture, nullptr, byRef(mRTView));
+if (FAILED(hr)) {
+gfxWarning() << *this << "Failed to create rendertarget view for temp texture. Code: " << hr;
+}
+}
+void
+DrawTargetD2D::PopAllClips()
+{
+if (mClipsArePushed) {
+PopClipsFromRT(mRT);
+mClipsArePushed = false;
+}
+}
+void
+DrawTargetD2D::PushClipsToRT(ID2D1RenderTarget *aRT)
+{
+for (std::vector<PushedClip>::iterator iter = mPushedClips.begin();
+iter != mPushedClips.end(); iter++) {
+if (iter->mLayer) {
+PushD2DLayer(aRT, iter->mPath->mGeometry, iter->mLayer, iter->mTransform);
+} else {
+aRT->PushAxisAlignedClip(iter->mBounds, iter->mIsPixelAligned ? D2D1_ANTIALIAS_MODE_ALIASED : D2D1_ANTIALIAS_MODE_PER_PRIMITIVE);
+}
+}
+}
+void
+DrawTargetD2D::PopClipsFromRT(ID2D1RenderTarget *aRT)
+{
+for (int i = mPushedClips.size() - 1; i >= 0; i--) {
+if (mPushedClips[i].mLayer) {
+aRT->PopLayer();
+} else {
+aRT->PopAxisAlignedClip();
+}
+}
+}
+void
+DrawTargetD2D::EnsureClipMaskTexture(IntRect *aBounds)
+{
+if (mCurrentClipMaskTexture || mPushedClips.empty()) {
+*aBounds = mCurrentClipBounds;
+return;
+}
+RefPtr<ID2D1Geometry> geometry = GetClippedGeometry(aBounds);
+CD3D10_TEXTURE2D_DESC desc(DXGI_FORMAT_A8_UNORM,
+mSize.width,
+mSize.height,
+1, 1);
+desc.BindFlags = D3D10_BIND_RENDER_TARGET | D3D10_BIND_SHADER_RESOURCE;
+HRESULT hr = mDevice->CreateTexture2D(&desc, nullptr, byRef(mCurrentClipMaskTexture));
+if (FAILED(hr)) {
+gfxWarning() << "Failed to create texture for ClipMask!";
+return;
+}
+RefPtr<ID2D1RenderTarget> rt = CreateRTForTexture(mCurrentClipMaskTexture, SurfaceFormat::A8);
+if (!rt) {
+gfxWarning() << "Failed to create RT for ClipMask!";
+return;
+}
+RefPtr<ID2D1SolidColorBrush> brush;
+rt->CreateSolidColorBrush(D2D1::ColorF(D2D1::ColorF::White), byRef(brush));
+rt->BeginDraw();
+rt->Clear(D2D1::ColorF(0, 0));
+rt->FillGeometry(geometry, brush);
+rt->EndDraw();
+}
+bool
+DrawTargetD2D::FillGlyphsManual(ScaledFontDWrite *aFont,
+const GlyphBuffer &aBuffer,
+const Color &aColor,
+IDWriteRenderingParams *aParams,
+const DrawOptions &aOptions)
+{
+HRESULT hr;
+RefPtr<IDWriteRenderingParams> params;
+if (aParams) {
+params = aParams;
+} else {
+mRT->GetTextRenderingParams(byRef(params));
+}
+DWRITE_RENDERING_MODE renderMode = DWRITE_RENDERING_MODE_DEFAULT;
+if (params) {
+hr = aFont->mFontFace->GetRecommendedRenderingMode(
+(FLOAT)aFont->GetSize(),
+1.0f,
+DWRITE_MEASURING_MODE_NATURAL,
+params,
+&renderMode);
+if (FAILED(hr)) {
+// this probably never happens, but let's play it safe
+renderMode = DWRITE_RENDERING_MODE_DEFAULT;
+}
+}
+// Deal with rendering modes CreateGlyphRunAnalysis doesn't accept.
+switch (renderMode) {
+case DWRITE_RENDERING_MODE_ALIASED:
+// ClearType texture creation will fail in this mode, so bail out
+return false;
+case DWRITE_RENDERING_MODE_DEFAULT:
+// As per DWRITE_RENDERING_MODE documentation, pick Natural for font
+// sizes under 16 ppem
+if (aFont->GetSize() < 16.0f) {
+renderMode = DWRITE_RENDERING_MODE_CLEARTYPE_NATURAL;
+} else {
+renderMode = DWRITE_RENDERING_MODE_CLEARTYPE_NATURAL_SYMMETRIC;
+}
+break;
+case DWRITE_RENDERING_MODE_OUTLINE:
+renderMode = DWRITE_RENDERING_MODE_CLEARTYPE_NATURAL_SYMMETRIC;
+break;
+default:
+break;
+}
+DWRITE_MEASURING_MODE measureMode =
+renderMode <= DWRITE_RENDERING_MODE_CLEARTYPE_GDI_CLASSIC ? DWRITE_MEASURING_MODE_GDI_CLASSIC :
+renderMode == DWRITE_RENDERING_MODE_CLEARTYPE_GDI_NATURAL ? DWRITE_MEASURING_MODE_GDI_NATURAL :
+DWRITE_MEASURING_MODE_NATURAL;
+DWRITE_MATRIX mat = DWriteMatrixFromMatrix(mTransform);
+AutoDWriteGlyphRun autoRun;
+DWriteGlyphRunFromGlyphs(aBuffer, aFont, &autoRun);
+RefPtr<IDWriteGlyphRunAnalysis> analysis;
+hr = GetDWriteFactory()->CreateGlyphRunAnalysis(&autoRun, 1.0f, &mat,
+renderMode, measureMode, 0, 0, byRef(analysis));
+if (FAILED(hr)) {
+return false;
+}
+RECT bounds;
+hr = analysis->GetAlphaTextureBounds(DWRITE_TEXTURE_CLEARTYPE_3x1, &bounds);
+if (bounds.bottom <= bounds.top || bounds.right <= bounds.left) {
+// DWrite seems to do this sometimes. I'm not 100% sure why. See bug 758980.
+gfxDebug() << "Empty alpha texture bounds! Falling back to regular drawing.";
+return false;
+}
+IntRect rectBounds(bounds.left, bounds.top, bounds.right - bounds.left, bounds.bottom - bounds.top);
+IntRect surfBounds(IntPoint(0, 0), mSize);
+rectBounds.IntersectRect(rectBounds, surfBounds);
+if (rectBounds.IsEmpty()) {
+// Nothing to do.
+return true;
+}
+RefPtr<ID3D10Texture2D> tex = CreateTextureForAnalysis(analysis, rectBounds);
+if (!tex) {
+return false;
+}
+RefPtr<ID3D10ShaderResourceView> srView;
+hr = mDevice->CreateShaderResourceView(tex, nullptr, byRef(srView));
+if (FAILED(hr)) {
+return false;
+}
+MarkChanged();
+// Prepare our background texture for drawing.
+PopAllClips();
+mRT->Flush();
+SetupStateForRendering();
+ID3D10EffectTechnique *technique = mPrivateData->mEffect->GetTechniqueByName("SampleTextTexture");
+mPrivateData->mEffect->GetVariableByName("QuadDesc")->AsVector()->
+SetFloatVector(ShaderConstantRectD3D10(-1.0f + ((Float(rectBounds.x) / mSize.width) * 2.0f),
+1.0f - (Float(rectBounds.y) / mSize.height * 2.0f),
+(Float(rectBounds.width) / mSize.width) * 2.0f,
+(-Float(rectBounds.height) / mSize.height) * 2.0f));
+mPrivateData->mEffect->GetVariableByName("TexCoords")->AsVector()->
+SetFloatVector(ShaderConstantRectD3D10(0, 0, 1.0f, 1.0f));
+FLOAT color[4] = { aColor.r, aColor.g, aColor.b, aColor.a };
+mPrivateData->mEffect->GetVariableByName("TextColor")->AsVector()->
+SetFloatVector(color);
+mPrivateData->mEffect->GetVariableByName("tex")->AsShaderResource()->SetResource(srView);
+bool isMasking = false;
+IntRect clipBoundsStorage;
+IntRect *clipBounds = nullptr;
+if (!mPushedClips.empty()) {
+clipBounds = &clipBoundsStorage;
+RefPtr<ID2D1Geometry> geom = GetClippedGeometry(clipBounds);
+RefPtr<ID2D1RectangleGeometry> rectGeom;
+factory()->CreateRectangleGeometry(D2D1::RectF(Float(rectBounds.x),
+Float(rectBounds.y),
+Float(rectBounds.width + rectBounds.x),
+Float(rectBounds.height + rectBounds.y)),
+byRef(rectGeom));
+D2D1_GEOMETRY_RELATION relation;
+if (FAILED(geom->CompareWithGeometry(rectGeom, D2D1::IdentityMatrix(), &relation)) ||
+relation != D2D1_GEOMETRY_RELATION_CONTAINS ) {
+isMasking = true;
+}
+}
+if (isMasking) {
+clipBounds = &clipBoundsStorage;
+EnsureClipMaskTexture(clipBounds);
+RefPtr<ID3D10ShaderResourceView> srViewMask;
+hr = mDevice->CreateShaderResourceView(mCurrentClipMaskTexture, nullptr, byRef(srViewMask));
+if (FAILED(hr)) {
+return false;
+}
+mPrivateData->mEffect->GetVariableByName("mask")->AsShaderResource()->SetResource(srViewMask);
+mPrivateData->mEffect->GetVariableByName("MaskTexCoords")->AsVector()->
+SetFloatVector(ShaderConstantRectD3D10(Float(rectBounds.x) / mSize.width, Float(rectBounds.y) / mSize.height,
+Float(rectBounds.width) / mSize.width, Float(rectBounds.height) / mSize.height));
+technique->GetPassByIndex(1)->Apply(0);
+} else {
+technique->GetPassByIndex(0)->Apply(0);
+}
+RefPtr<ID3D10RenderTargetView> rtView;
+ID3D10RenderTargetView *rtViews;
+mDevice->CreateRenderTargetView(mTexture, nullptr, byRef(rtView));
+rtViews = rtView;
+mDevice->OMSetRenderTargets(1, &rtViews, nullptr);
+SetScissorToRect(clipBounds);
+mDevice->Draw(4, 0);
+return true;
+}
+TemporaryRef<ID2D1Brush>
+DrawTargetD2D::CreateBrushForPattern(const Pattern &aPattern, Float aAlpha)
+{
+if (!IsPatternSupportedByD2D(aPattern)) {
+RefPtr<ID2D1SolidColorBrush> colBrush;
+mRT->CreateSolidColorBrush(D2D1::ColorF(1.0f, 1.0f, 1.0f, 1.0f), byRef(colBrush));
+return colBrush;
+}
+if (aPattern.GetType() == PatternType::COLOR) {
+RefPtr<ID2D1SolidColorBrush> colBrush;
+Color color = static_cast<const ColorPattern*>(&aPattern)->mColor;
+mRT->CreateSolidColorBrush(D2D1::ColorF(color.r, color.g,
+color.b, color.a),
+D2D1::BrushProperties(aAlpha),
+byRef(colBrush));
+return colBrush;
+} else if (aPattern.GetType() == PatternType::LINEAR_GRADIENT) {
+RefPtr<ID2D1LinearGradientBrush> gradBrush;
+const LinearGradientPattern *pat =
+static_cast<const LinearGradientPattern*>(&aPattern);
+GradientStopsD2D *stops = static_cast<GradientStopsD2D*>(pat->mStops.get());
+if (!stops) {
+gfxDebug() << "No stops specified for gradient pattern.";
+return nullptr;
+}
+if (pat->mBegin == pat->mEnd) {
+RefPtr<ID2D1SolidColorBrush> colBrush;
+uint32_t stopCount = stops->mStopCollection->GetGradientStopCount();
+vector<D2D1_GRADIENT_STOP> d2dStops(stopCount);
+stops->mStopCollection->GetGradientStops(&d2dStops.front(), stopCount);
+mRT->CreateSolidColorBrush(d2dStops.back().color,
+D2D1::BrushProperties(aAlpha),
+byRef(colBrush));
+return colBrush;
+}
+mRT->CreateLinearGradientBrush(D2D1::LinearGradientBrushProperties(D2DPoint(pat->mBegin),
+D2DPoint(pat->mEnd)),
+D2D1::BrushProperties(aAlpha, D2DMatrix(pat->mMatrix)),
+stops->mStopCollection,
+byRef(gradBrush));
+return gradBrush;
+} else if (aPattern.GetType() == PatternType::RADIAL_GRADIENT) {
+RefPtr<ID2D1RadialGradientBrush> gradBrush;
+const RadialGradientPattern *pat =
+static_cast<const RadialGradientPattern*>(&aPattern);
+GradientStopsD2D *stops = static_cast<GradientStopsD2D*>(pat->mStops.get());
+if (!stops) {
+gfxDebug() << "No stops specified for gradient pattern.";
+return nullptr;
+}
+// This will not be a complex radial gradient brush.
+mRT->CreateRadialGradientBrush(
+D2D1::RadialGradientBrushProperties(D2DPoint(pat->mCenter2),
+D2DPoint(pat->mCenter1 - pat->mCenter2),
+pat->mRadius2, pat->mRadius2),
+D2D1::BrushProperties(aAlpha, D2DMatrix(pat->mMatrix)),
+stops->mStopCollection,
+byRef(gradBrush));
+return gradBrush;
+} else if (aPattern.GetType() == PatternType::SURFACE) {
+RefPtr<ID2D1BitmapBrush> bmBrush;
+const SurfacePattern *pat =
+static_cast<const SurfacePattern*>(&aPattern);
+if (!pat->mSurface) {
+gfxDebug() << "No source surface specified for surface pattern";
+return nullptr;
+}
+RefPtr<ID2D1Bitmap> bitmap;
+Matrix mat = pat->mMatrix;
+switch (pat->mSurface->GetType()) {
+case SurfaceType::D2D1_BITMAP:
+{
+SourceSurfaceD2D *surf = static_cast<SourceSurfaceD2D*>(pat->mSurface.get());
+bitmap = surf->mBitmap;
+if (!bitmap) {
+return nullptr;
+}
+}
+break;
+case SurfaceType::D2D1_DRAWTARGET:
+{
+SourceSurfaceD2DTarget *surf =
+static_cast<SourceSurfaceD2DTarget*>(pat->mSurface.get());
+bitmap = surf->GetBitmap(mRT);
+AddDependencyOnSource(surf);
+}
+break;
+default:
+{
+RefPtr<DataSourceSurface> dataSurf = pat->mSurface->GetDataSurface();
+if (!dataSurf) {
+gfxWarning() << "Invalid surface type.";
+return nullptr;
+}
+bitmap = CreatePartialBitmapForSurface(dataSurf, mTransform, mSize, pat->mExtendMode, mat, mRT);
+if (!bitmap) {
+return nullptr;
+}
+}
+break;
+}
+mRT->CreateBitmapBrush(bitmap,
+D2D1::BitmapBrushProperties(D2DExtend(pat->mExtendMode),
+D2DExtend(pat->mExtendMode),
+D2DFilter(pat->mFilter)),
+D2D1::BrushProperties(aAlpha, D2DMatrix(mat)),
+byRef(bmBrush));
+return bmBrush;
+}
+gfxWarning() << "Invalid pattern type detected.";
+return nullptr;
+}
+TemporaryRef<ID3D10Texture2D>
+DrawTargetD2D::CreateGradientTexture(const GradientStopsD2D *aStops)
+{
+CD3D10_TEXTURE2D_DESC desc(DXGI_FORMAT_B8G8R8A8_UNORM, 4096, 1, 1, 1);
+std::vector<D2D1_GRADIENT_STOP> rawStops;
+rawStops.resize(aStops->mStopCollection->GetGradientStopCount());
+aStops->mStopCollection->GetGradientStops(&rawStops.front(), rawStops.size());
+std::vector<unsigned char> textureData;
+textureData.resize(4096 * 4);
+unsigned char *texData = &textureData.front();
+float prevColorPos = 0;
+float nextColorPos = 1.0f;
+D2D1_COLOR_F prevColor = rawStops[0].color;
+D2D1_COLOR_F nextColor = prevColor;
+if (rawStops.size() >= 2) {
+nextColor = rawStops[1].color;
+nextColorPos = rawStops[1].position;
+}
+uint32_t stopPosition = 2;
+// Not the most optimized way but this will do for now.
+for (int i = 0; i < 4096; i++) {
+// The 4095 seems a little counter intuitive, but we want the gradient
+// color at offset 0 at the first pixel, and at offset 1.0f at the last
+// pixel.
+float pos = float(i) / 4095;
+while (pos > nextColorPos) {
+prevColor = nextColor;
+prevColorPos = nextColorPos;
+if (rawStops.size() > stopPosition) {
+nextColor = rawStops[stopPosition].color;
+nextColorPos = rawStops[stopPosition++].position;
+} else {
+nextColorPos = 1.0f;
+}
+}
+float interp;
+if (nextColorPos != prevColorPos) {
+interp = (pos - prevColorPos) / (nextColorPos - prevColorPos);
+} else {
+interp = 0;
+}
+Color newColor(prevColor.r + (nextColor.r - prevColor.r) * interp,
+prevColor.g + (nextColor.g - prevColor.g) * interp,
+prevColor.b + (nextColor.b - prevColor.b) * interp,
+prevColor.a + (nextColor.a - prevColor.a) * interp);
+texData[i * 4] = (char)(255.0f * newColor.b);
+texData[i * 4 + 1] = (char)(255.0f * newColor.g);
+texData[i * 4 + 2] = (char)(255.0f * newColor.r);
+texData[i * 4 + 3] = (char)(255.0f * newColor.a);
+}
+D3D10_SUBRESOURCE_DATA data;
+data.pSysMem = &textureData.front();
+data.SysMemPitch = 4096 * 4;
+RefPtr<ID3D10Texture2D> tex;
+mDevice->CreateTexture2D(&desc, &data, byRef(tex));
+return tex;
+}
+TemporaryRef<ID3D10Texture2D>
+DrawTargetD2D::CreateTextureForAnalysis(IDWriteGlyphRunAnalysis *aAnalysis, const IntRect &aBounds)
+{
+HRESULT hr;
+uint32_t bufferSize = aBounds.width * aBounds.height * 3;
+RECT bounds;
+bounds.left = aBounds.x;
+bounds.top = aBounds.y;
+bounds.right = aBounds.x + aBounds.width;
+bounds.bottom = aBounds.y + aBounds.height;
+// Add one byte so we can safely read a 32-bit int when copying the last
+// 3 bytes.
+BYTE *texture = new BYTE[bufferSize + 1];
+hr = aAnalysis->CreateAlphaTexture(DWRITE_TEXTURE_CLEARTYPE_3x1, &bounds, texture, bufferSize);
+if (FAILED(hr)) {
+delete [] texture;
+return nullptr;
+}
+int alignedBufferSize = aBounds.width * aBounds.height * 4;
+// Create a one-off immutable texture from system memory.
+BYTE *alignedTextureData = new BYTE[alignedBufferSize];
+for (int y = 0; y < aBounds.height; y++) {
+for (int x = 0; x < aBounds.width; x++) {
+// Copy 3 Bpp source to 4 Bpp destination memory used for
+// texture creation. D3D10 has no 3 Bpp texture format we can
+// use.
+//
+// Since we don't care what ends up in the alpha pixel of the
+// destination, therefor we can simply copy a normal 32 bit
+// integer each time, filling the alpha pixel of the destination
+// with the first subpixel of the next pixel from the source.
+*((int*)(alignedTextureData + (y * aBounds.width + x) * 4)) =
+*((int*)(texture + (y * aBounds.width + x) * 3));
+}
+}
+D3D10_SUBRESOURCE_DATA data;
+CD3D10_TEXTURE2D_DESC desc(DXGI_FORMAT_B8G8R8A8_UNORM,
+aBounds.width, aBounds.height,
+1, 1);
+desc.Usage = D3D10_USAGE_IMMUTABLE;
+data.SysMemPitch = aBounds.width * 4;
+data.pSysMem = alignedTextureData;
+RefPtr<ID3D10Texture2D> tex;
+hr = mDevice->CreateTexture2D(&desc, &data, byRef(tex));
+delete [] alignedTextureData;
+delete [] texture;
+if (FAILED(hr)) {
+return nullptr;
+}
+return tex;
+}
+void
+DrawTargetD2D::SetupEffectForRadialGradient(const RadialGradientPattern *aPattern)
+{
+mPrivateData->mEffect->GetTechniqueByName("SampleRadialGradient")->GetPassByIndex(0)->Apply(0);
+mPrivateData->mEffect->GetVariableByName("MaskTexCoords")->AsVector()->
+SetFloatVector(ShaderConstantRectD3D10(0, 0, 1.0f, 1.0f));
+float dimensions[] = { float(mSize.width), float(mSize.height), 0, 0 };
+mPrivateData->mEffect->GetVariableByName("dimensions")->AsVector()->
+SetFloatVector(dimensions);
+const GradientStopsD2D *stops =
+static_cast<const GradientStopsD2D*>(aPattern->mStops.get());
+RefPtr<ID3D10Texture2D> tex = CreateGradientTexture(stops);
+RefPtr<ID3D10ShaderResourceView> srView;
+mDevice->CreateShaderResourceView(tex, nullptr, byRef(srView));
+mPrivateData->mEffect->GetVariableByName("tex")->AsShaderResource()->SetResource(srView);
+Point dc = aPattern->mCenter2 - aPattern->mCenter1;
+float dr = aPattern->mRadius2 - aPattern->mRadius1;
+float diffv[] = { dc.x, dc.y, dr, 0 };
+mPrivateData->mEffect->GetVariableByName("diff")->AsVector()->
+SetFloatVector(diffv);
+float center1[] = { aPattern->mCenter1.x, aPattern->mCenter1.y, dr, 0 };
+mPrivateData->mEffect->GetVariableByName("center1")->AsVector()->
+SetFloatVector(center1);
+mPrivateData->mEffect->GetVariableByName("radius1")->AsScalar()->
+SetFloat(aPattern->mRadius1);
+mPrivateData->mEffect->GetVariableByName("sq_radius1")->AsScalar()->
+SetFloat(pow(aPattern->mRadius1, 2));
+Matrix invTransform = mTransform;
+if (!invTransform.Invert()) {
+// Bail if the matrix is singular.
+return;
+}
+float matrix[] = { invTransform._11, invTransform._12, 0, 0,
+invTransform._21, invTransform._22, 0, 0,
+invTransform._31, invTransform._32, 1.0f, 0,
+0, 0, 0, 1.0f };
+mPrivateData->mEffect->GetVariableByName("DeviceSpaceToUserSpace")->
+AsMatrix()->SetMatrix(matrix);
+float A = dc.x * dc.x + dc.y * dc.y - dr * dr;
+uint32_t offset = 0;
+switch (stops->mStopCollection->GetExtendMode()) {
+case D2D1_EXTEND_MODE_WRAP:
+offset = 1;
+break;
+case D2D1_EXTEND_MODE_MIRROR:
+offset = 2;
+break;
+default:
+gfxWarning() << "This shouldn't happen! Invalid extend mode for gradient stops.";
+}
+if (A == 0) {
+mPrivateData->mEffect->GetTechniqueByName("SampleRadialGradient")->
+GetPassByIndex(offset * 2 + 1)->Apply(0);
+} else {
+mPrivateData->mEffect->GetVariableByName("A")->AsScalar()->SetFloat(A);
+mPrivateData->mEffect->GetTechniqueByName("SampleRadialGradient")->
+GetPassByIndex(offset * 2)->Apply(0);
+}
+}
+void
+DrawTargetD2D::SetupStateForRendering()
+{
+UINT stride = sizeof(Vertex);
+UINT offset = 0;
+ID3D10Buffer *buff = mPrivateData->mVB;
+mDevice->IASetPrimitiveTopology(D3D10_PRIMITIVE_TOPOLOGY_TRIANGLESTRIP);
+mDevice->IASetVertexBuffers(0, 1, &buff, &stride, &offset);
+mDevice->IASetInputLayout(mPrivateData->mInputLayout);
+D3D10_VIEWPORT viewport;
+viewport.MaxDepth = 1;
+viewport.MinDepth = 0;
+viewport.Height = mSize.height;
+viewport.Width = mSize.width;
+viewport.TopLeftX = 0;
+viewport.TopLeftY = 0;
+mDevice->RSSetViewports(1, &viewport);
+}
+ID2D1Factory*
+DrawTargetD2D::factory()
+{
+if (mFactory) {
+return mFactory;
+}
+D2D1CreateFactoryFunc createD2DFactory;
+HMODULE d2dModule = LoadLibraryW(L"d2d1.dll");
+createD2DFactory = (D2D1CreateFactoryFunc)
+GetProcAddress(d2dModule, "D2D1CreateFactory");
+if (!createD2DFactory) {
+gfxWarning() << "Failed to locate D2D1CreateFactory function.";
+return nullptr;
+}
+D2D1_FACTORY_OPTIONS options;
+#ifdef _DEBUG
+options.debugLevel = D2D1_DEBUG_LEVEL_WARNING;
+#else
+options.debugLevel = D2D1_DEBUG_LEVEL_NONE;
+#endif
+HRESULT hr = createD2DFactory(D2D1_FACTORY_TYPE_MULTI_THREADED,
+__uuidof(ID2D1Factory),
+&options,
+(void**)&mFactory);
+if (FAILED(hr)) {
+gfxWarning() << "Failed to create Direct2D factory.";
+}
+return mFactory;
+}
+void
+DrawTargetD2D::CleanupD2D()
+{
+if (mFactory) {
+mFactory->Release();
+mFactory = nullptr;
+}
+}
+IDWriteFactory*
+DrawTargetD2D::GetDWriteFactory()
+{
+if (mDWriteFactory) {
+return mDWriteFactory;
+}
+decltype(DWriteCreateFactory)* createDWriteFactory;
+HMODULE dwriteModule = LoadLibraryW(L"dwrite.dll");
+createDWriteFactory = (decltype(DWriteCreateFactory)*)
+GetProcAddress(dwriteModule, "DWriteCreateFactory");
+if (!createDWriteFactory) {
+gfxWarning() << "Failed to locate DWriteCreateFactory function.";
+return nullptr;
+}
+HRESULT hr = createDWriteFactory(DWRITE_FACTORY_TYPE_SHARED, __uuidof(IDWriteFactory),
+reinterpret_cast<IUnknown**>(&mDWriteFactory));
+if (FAILED(hr)) {
+gfxWarning() << "Failed to create DWrite Factory.";
+}
+return mDWriteFactory;
+}
+void
+DrawTargetD2D::SetScissorToRect(IntRect *aRect)
+{
+D3D10_RECT rect;
+if (aRect) {
+rect.left = aRect->x;
+rect.right = aRect->XMost();
+rect.top = aRect->y;
+rect.bottom = aRect->YMost();
+} else {
+rect.left = rect.top = INT32_MIN;
+rect.right = rect.bottom = INT32_MAX;
+}
+mDevice->RSSetScissorRects(1, &rect);
+}
+void
+DrawTargetD2D::PushD2DLayer(ID2D1RenderTarget *aRT, ID2D1Geometry *aGeometry, ID2D1Layer *aLayer, const D2D1_MATRIX_3X2_F &aTransform)
+{
+D2D1_LAYER_OPTIONS options = D2D1_LAYER_OPTIONS_NONE;
+D2D1_LAYER_OPTIONS1 options1 =  D2D1_LAYER_OPTIONS1_NONE;
+if (aRT->GetPixelFormat().alphaMode == D2D1_ALPHA_MODE_IGNORE) {
+options = D2D1_LAYER_OPTIONS_INITIALIZE_FOR_CLEARTYPE;
+options1 = D2D1_LAYER_OPTIONS1_IGNORE_ALPHA | D2D1_LAYER_OPTIONS1_INITIALIZE_FROM_BACKGROUND;
+}
+	RefPtr<ID2D1DeviceContext> dc;
+	HRESULT hr = aRT->QueryInterface(IID_ID2D1DeviceContext, (void**)((ID2D1DeviceContext**)byRef(dc)));
+	if (FAILED(hr)) {
+	    aRT->PushLayer(D2D1::LayerParameters(D2D1::InfiniteRect(), aGeometry,
+				                                   D2D1_ANTIALIAS_MODE_PER_PRIMITIVE, aTransform,
+				                                   1.0, nullptr, options),
+				             aLayer);
+	} else {
+	    dc->PushLayer(D2D1::LayerParameters1(D2D1::InfiniteRect(), aGeometry,
+				                                   D2D1_ANTIALIAS_MODE_PER_PRIMITIVE, aTransform,
+				                                   1.0, nullptr, options1),
+				            aLayer);
+	}
+}
+}
+}

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comparison: gfx/2d/DrawTargetD2D.cpp

gfx/2d/DrawTargetD2D.cpp