TemporaryRef<DrawTarget>
Factory::CreateDrawTargetForData(BackendType aBackend,
unsigned char *aData,
const IntSize &aSize,
int32_t aStride,
SurfaceFormat aFormat)
{
switch (aBackend) {
#ifdef USE_SKIA
case BACKEND_SKIA:
{
RefPtr<DrawTargetSkia> newTarget;
newTarget = new DrawTargetSkia();
newTarget->Init(aData, aSize, aStride, aFormat);
return newTarget;
}
#endif
default:
gfxDebug() << "Invalid draw target type specified.";
return NULL;
}
gfxDebug() << "Failed to create DrawTarget, Type: " << aBackend << " Size: " << aSize;
// Failed
return NULL;
}
MemoryTextureData*
MemoryTextureData::Create(gfx::IntSize aSize, gfx::SurfaceFormat aFormat,
gfx::BackendType aMoz2DBackend, TextureFlags aFlags,
TextureAllocationFlags aAllocFlags,
ClientIPCAllocator* aAllocator)
{
// Should have used CreateForYCbCr.
MOZ_ASSERT(aFormat != gfx::SurfaceFormat::YUV);
if (aSize.width <= 0 || aSize.height <= 0) {
gfxDebug() << "Asking for buffer of invalid size " << aSize.width << "x" << aSize.height;
return nullptr;
}
uint32_t bufSize = ImageDataSerializer::ComputeRGBBufferSize(aSize, aFormat);
if (!bufSize) {
return nullptr;
}
uint8_t* buf = new (fallible) uint8_t[bufSize];
if (!InitBuffer(buf, bufSize, aFormat, aAllocFlags)) {
return nullptr;
}
auto fwd = aAllocator ? aAllocator->AsCompositableForwarder() : nullptr;
bool hasIntermediateBuffer = fwd ? ComputeHasIntermediateBuffer(aFormat,
fwd->GetCompositorBackendType())
: true;
GfxMemoryImageReporter::DidAlloc(buf);
BufferDescriptor descriptor = RGBDescriptor(aSize, aFormat, hasIntermediateBuffer);
return new MemoryTextureData(descriptor, aMoz2DBackend, buf, bufSize);
}
already_AddRefed<DataSourceSurface>
SourceSurfaceD2DTarget::GetDataSurface()
{
RefPtr<DataSourceSurfaceD2DTarget> dataSurf =
new DataSourceSurfaceD2DTarget(mFormat);
D3D10_TEXTURE2D_DESC desc;
mTexture->GetDesc(&desc);
desc.CPUAccessFlags = D3D10_CPU_ACCESS_READ;
desc.Usage = D3D10_USAGE_STAGING;
desc.BindFlags = 0;
desc.MiscFlags = 0;
if (!Factory::GetDirect3D10Device()) {
gfxCriticalError() << "Invalid D3D10 device in D2D target surface";
return nullptr;
}
HRESULT hr = Factory::GetDirect3D10Device()->CreateTexture2D(&desc, nullptr, byRef(dataSurf->mTexture));
if (FAILED(hr)) {
gfxDebug() << "Failed to create staging texture for SourceSurface. Code: " << hexa(hr);
return nullptr;
}
Factory::GetDirect3D10Device()->CopyResource(dataSurf->mTexture, mTexture);
return dataSurf.forget();
}
void
DrawTargetD2D1::PushClip(const Path *aPath)
{
if (aPath->GetBackendType() != BackendType::DIRECT2D) {
gfxDebug() << *this << ": Ignoring clipping call for incompatible path.";
return;
}
RefPtr<PathD2D> pathD2D = static_cast<PathD2D*>(const_cast<Path*>(aPath));
PushedClip clip;
clip.mTransform = D2DMatrix(mTransform);
clip.mPath = pathD2D;
pathD2D->mGeometry->GetBounds(clip.mTransform, &clip.mBounds);
mPushedClips.push_back(clip);
// The transform of clips is relative to the world matrix, since we use the total
// transform for the clips, make the world matrix identity.
mDC->SetTransform(D2D1::IdentityMatrix());
mTransformDirty = true;
if (mClipsArePushed) {
PushD2DLayer(mDC, pathD2D->mGeometry, clip.mTransform);
}
}
MemoryTextureData*
MemoryTextureData::Create(gfx::IntSize aSize, gfx::SurfaceFormat aFormat,
gfx::BackendType aMoz2DBackend,
LayersBackend aLayersBackend, TextureFlags aFlags,
TextureAllocationFlags aAllocFlags,
LayersIPCChannel* aAllocator)
{
// Should have used CreateForYCbCr.
MOZ_ASSERT(aFormat != gfx::SurfaceFormat::YUV);
if (aSize.width <= 0 || aSize.height <= 0) {
gfxDebug() << "Asking for buffer of invalid size " << aSize.width << "x" << aSize.height;
return nullptr;
}
uint32_t bufSize = ImageDataSerializer::ComputeRGBBufferSize(aSize, aFormat);
if (!bufSize) {
return nullptr;
}
uint8_t* buf = new (fallible) uint8_t[bufSize];
if (!InitBuffer(buf, bufSize, aFormat, aAllocFlags, false)) {
return nullptr;
}
bool hasIntermediateBuffer = ComputeHasIntermediateBuffer(aFormat, aLayersBackend);
GfxMemoryImageReporter::DidAlloc(buf);
BufferDescriptor descriptor = RGBDescriptor(aSize, aFormat, hasIntermediateBuffer);
return new MemoryTextureData(descriptor, aMoz2DBackend, buf, bufSize);
}
static bool
InitBuffer(uint8_t* buf, size_t bufSize,
gfx::SurfaceFormat aFormat, TextureAllocationFlags aAllocFlags,
bool aAlreadyZero)
{
if (!buf) {
gfxDebug() << "BufferTextureData: Failed to allocate " << bufSize << " bytes";
return false;
}
if ((aAllocFlags & ALLOC_CLEAR_BUFFER) ||
(aAllocFlags & ALLOC_CLEAR_BUFFER_BLACK)) {
if (aFormat == gfx::SurfaceFormat::B8G8R8X8) {
// Even though BGRX was requested, XRGB_UINT32 is what is meant,
// so use 0xFF000000 to put alpha in the right place.
libyuv::ARGBRect(buf, bufSize, 0, 0, bufSize / sizeof(uint32_t), 1, 0xFF000000);
} else if (!aAlreadyZero) {
memset(buf, 0, bufSize);
}
}
if (aAllocFlags & ALLOC_CLEAR_BUFFER_WHITE) {
memset(buf, 0xFF, bufSize);
}
return true;
}
bool
SourceSurfaceD2D::InitFromData(unsigned char *aData,
const IntSize &aSize,
int32_t aStride,
SurfaceFormat aFormat,
ID2D1RenderTarget *aRT)
{
HRESULT hr;
mFormat = aFormat;
mSize = aSize;
if ((uint32_t)aSize.width > aRT->GetMaximumBitmapSize() ||
(uint32_t)aSize.height > aRT->GetMaximumBitmapSize()) {
gfxDebug() << "Bitmap does not fit in texture.";
return false;
}
D2D1_BITMAP_PROPERTIES props =
D2D1::BitmapProperties(D2D1::PixelFormat(DXGIFormat(aFormat), AlphaMode(aFormat)));
hr = aRT->CreateBitmap(D2DIntSize(aSize), aData, aStride, props, byRef(mBitmap));
if (FAILED(hr)) {
gfxWarning() << "Failed to create D2D Bitmap for data. Code: " << hr;
return false;
}
DrawTargetD2D::mVRAMUsageSS += GetByteSize();
mDevice = Factory::GetDirect3D10Device();
return true;
}
X11TextureData* X11TextureData::Create(gfx::IntSize aSize,
gfx::SurfaceFormat aFormat,
TextureFlags aFlags,
LayersIPCChannel* aAllocator) {
MOZ_ASSERT(aSize.width >= 0 && aSize.height >= 0);
if (aSize.width <= 0 || aSize.height <= 0 ||
aSize.width > XLIB_IMAGE_SIDE_SIZE_LIMIT ||
aSize.height > XLIB_IMAGE_SIDE_SIZE_LIMIT) {
gfxDebug() << "Asking for X11 surface of invalid size " << aSize.width
<< "x" << aSize.height;
return nullptr;
}
gfxImageFormat imageFormat = SurfaceFormatToImageFormat(aFormat);
RefPtr<gfxASurface> surface =
gfxPlatform::GetPlatform()->CreateOffscreenSurface(aSize, imageFormat);
if (!surface || surface->GetType() != gfxSurfaceType::Xlib) {
NS_ERROR("creating Xlib surface failed!");
return nullptr;
}
gfxXlibSurface* xlibSurface = static_cast<gfxXlibSurface*>(surface.get());
bool crossProcess = !aAllocator->IsSameProcess();
X11TextureData* texture = new X11TextureData(
aSize, aFormat, !!(aFlags & TextureFlags::DEALLOCATE_CLIENT),
crossProcess, xlibSurface);
if (crossProcess) {
FinishX(DefaultXDisplay());
}
return texture;
}
TemporaryRef<DrawTarget>
Factory::CreateDrawTarget(BackendType aBackend, const IntSize &aSize, SurfaceFormat aFormat)
{
switch (aBackend) {
#ifdef WIN32
case BACKEND_DIRECT2D:
{
RefPtr<DrawTargetD2D> newTarget;
newTarget = new DrawTargetD2D();
if (newTarget->Init(aSize, aFormat)) {
return newTarget;
}
break;
}
#elif defined XP_MACOSX || defined ANDROID || defined LINUX
#ifdef USE_SKIA
case BACKEND_SKIA:
{
RefPtr<DrawTargetSkia> newTarget;
newTarget = new DrawTargetSkia();
if (newTarget->Init(aSize, aFormat)) {
return newTarget;
}
break;
}
#endif
#ifdef XP_MACOSX
case BACKEND_COREGRAPHICS:
{
RefPtr<DrawTargetCG> newTarget;
newTarget = new DrawTargetCG();
if (newTarget->Init(aSize, aFormat)) {
return newTarget;
}
break;
}
#endif
#endif
default:
gfxDebug() << "Invalid draw target type specified.";
return NULL;
}
gfxDebug() << "Failed to create DrawTarget, Type: " << aBackend << " Size: " << aSize;
// Failed
return NULL;
}
TemporaryRef<SourceSurface>
DrawTargetSkia::CreateSourceSurfaceFromData(unsigned char *aData,
const IntSize &aSize,
int32_t aStride,
SurfaceFormat aFormat) const
{
RefPtr<SourceSurfaceSkia> newSurf = new SourceSurfaceSkia();
if (!newSurf->InitFromData(aData, aSize, aStride, aFormat)) {
gfxDebug() << *this << ": Failure to create source surface from data. Size: " << aSize;
return nullptr;
}
return newSurf;
}
// Minimum required shmem size in bytes
size_t
YCbCrImageDataDeserializerBase::ComputeMinBufferSize(const gfx::IntSize& aYSize,
uint32_t aYStride,
const gfx::IntSize& aCbCrSize,
uint32_t aCbCrStride)
{
MOZ_ASSERT(aYSize.height >= 0 && aYSize.width >= 0);
if (aYSize.height <= 0 || aYSize.width <= 0 || aCbCrSize.height <= 0 || aCbCrSize.width <= 0) {
gfxDebug() << "Non-positive YCbCr buffer size request " << aYSize.height << "x" << aYSize.width << ", " << aCbCrSize.height << "x" << aCbCrSize.width;
return 0;
}
return ComputeOffset(aYSize.height, aYStride)
+ 2 * ComputeOffset(aCbCrSize.height, aCbCrStride)
+ MOZ_ALIGN_WORD(sizeof(YCbCrBufferInfo));
}
TemporaryRef<Path>
PathBuilderD2D::Finish()
{
if (mFigureActive) {
mSink->EndFigure(D2D1_FIGURE_END_OPEN);
}
HRESULT hr = mSink->Close();
if (FAILED(hr)) {
gfxDebug() << "Failed to close PathSink. Code: " << hr;
return nullptr;
}
return new PathD2D(mGeometry, mFigureActive, mCurrentPoint, mFillRule);
}
ShmemTextureData*
ShmemTextureData::Create(gfx::IntSize aSize, gfx::SurfaceFormat aFormat,
gfx::BackendType aMoz2DBackend,
LayersBackend aLayersBackend, TextureFlags aFlags,
TextureAllocationFlags aAllocFlags,
ClientIPCAllocator* aAllocator)
{
MOZ_ASSERT(aAllocator);
// Should have used CreateForYCbCr.
MOZ_ASSERT(aFormat != gfx::SurfaceFormat::YUV);
if (!aAllocator || !aAllocator->AsShmemAllocator()) {
return nullptr;
}
if (aSize.width <= 0 || aSize.height <= 0) {
gfxDebug() << "Asking for buffer of invalid size " << aSize.width << "x" << aSize.height;
return nullptr;
}
uint32_t bufSize = ImageDataSerializer::ComputeRGBBufferSize(aSize, aFormat);
if (!bufSize) {
return nullptr;
}
mozilla::ipc::Shmem shm;
if (!aAllocator->AsShmemAllocator()->AllocUnsafeShmem(bufSize, OptimalShmemType(), &shm)) {
return nullptr;
}
uint8_t* buf = shm.get<uint8_t>();
if (!InitBuffer(buf, bufSize, aFormat, aAllocFlags, true)) {
return nullptr;
}
// LAYERS_NONE must imply that we have no compositable forwarder
MOZ_ASSERT_IF(aLayersBackend == LayersBackend::LAYERS_NONE,
!aAllocator || !aAllocator->AsCompositableForwarder());
bool hasIntermediateBuffer = ComputeHasIntermediateBuffer(aFormat, aLayersBackend);
BufferDescriptor descriptor = RGBDescriptor(aSize, aFormat, hasIntermediateBuffer);
return new ShmemTextureData(descriptor, aMoz2DBackend, shm);
return nullptr;
}
void
DrawTargetD2D1::DrawSurfaceWithShadow(SourceSurface *aSurface,
const Point &aDest,
const Color &aColor,
const Point &aOffset,
Float aSigma,
CompositionOp aOperator)
{
MarkChanged();
mDC->SetTransform(D2D1::IdentityMatrix());
mTransformDirty = true;
Matrix mat;
RefPtr<ID2D1Image> image = GetImageForSurface(aSurface, mat, ExtendMode::CLAMP);
if (!mat.IsIdentity()) {
gfxDebug() << *this << ": At this point complex partial uploads are not supported for Shadow surfaces.";
return;
}
// Step 1, create the shadow effect.
RefPtr<ID2D1Effect> shadowEffect;
mDC->CreateEffect(CLSID_D2D1Shadow, byRef(shadowEffect));
shadowEffect->SetInput(0, image);
shadowEffect->SetValue(D2D1_SHADOW_PROP_BLUR_STANDARD_DEVIATION, aSigma);
D2D1_VECTOR_4F color = { aColor.r, aColor.g, aColor.b, aColor.a };
shadowEffect->SetValue(D2D1_SHADOW_PROP_COLOR, color);
// Step 2, move the shadow effect into place.
RefPtr<ID2D1Effect> affineTransformEffect;
mDC->CreateEffect(CLSID_D2D12DAffineTransform, byRef(affineTransformEffect));
affineTransformEffect->SetInputEffect(0, shadowEffect);
D2D1_MATRIX_3X2_F matrix = D2D1::Matrix3x2F::Translation(aOffset.x, aOffset.y);
affineTransformEffect->SetValue(D2D1_2DAFFINETRANSFORM_PROP_TRANSFORM_MATRIX, matrix);
// Step 3, create an effect that combines shadow and bitmap in one image.
RefPtr<ID2D1Effect> compositeEffect;
mDC->CreateEffect(CLSID_D2D1Composite, byRef(compositeEffect));
compositeEffect->SetInputEffect(0, affineTransformEffect);
compositeEffect->SetInput(1, image);
compositeEffect->SetValue(D2D1_COMPOSITE_PROP_MODE, D2DCompositionMode(aOperator));
D2D1_POINT_2F surfPoint = D2DPoint(aDest);
mDC->DrawImage(compositeEffect, &surfPoint, nullptr, D2D1_INTERPOLATION_MODE_LINEAR, D2DCompositionMode(aOperator));
}
void
DrawTargetD2D1::Fill(const Path *aPath,
const Pattern &aPattern,
const DrawOptions &aOptions)
{
if (aPath->GetBackendType() != BackendType::DIRECT2D) {
gfxDebug() << *this << ": Ignoring drawing call for incompatible path.";
return;
}
const PathD2D *d2dPath = static_cast<const PathD2D*>(aPath);
PrepareForDrawing(aOptions.mCompositionOp, aPattern);
RefPtr<ID2D1Brush> brush = CreateBrushForPattern(aPattern, aOptions.mAlpha);
mDC->FillGeometry(d2dPath->mGeometry, brush);
FinalizeDrawing(aOptions.mCompositionOp, aPattern);
}
void
DrawTargetD2D1::CopySurface(SourceSurface *aSurface,
const IntRect &aSourceRect,
const IntPoint &aDestination)
{
MarkChanged();
mDC->SetTransform(D2D1::IdentityMatrix());
mTransformDirty = true;
Matrix mat;
RefPtr<ID2D1Image> image = GetImageForSurface(aSurface, mat, ExtendMode::CLAMP);
if (!mat.IsIdentity()) {
gfxDebug() << *this << ": At this point complex partial uploads are not supported for CopySurface.";
return;
}
mDC->DrawImage(image, D2D1::Point2F(Float(aDestination.x), Float(aDestination.y)),
D2D1::RectF(Float(aSourceRect.x), Float(aSourceRect.y),
Float(aSourceRect.XMost()), Float(aSourceRect.YMost())),
D2D1_INTERPOLATION_MODE_NEAREST_NEIGHBOR, D2D1_COMPOSITE_MODE_BOUNDED_SOURCE_COPY);
}
void
DrawTargetSkia::DrawSurface(SourceSurface *aSurface,
const Rect &aDest,
const Rect &aSource,
const DrawSurfaceOptions &aSurfOptions,
const DrawOptions &aOptions)
{
RefPtr<SourceSurface> dataSurface;
if (!(aSurface->GetType() == SurfaceType::SKIA || aSurface->GetType() == SurfaceType::DATA)) {
dataSurface = aSurface->GetDataSurface();
if (!dataSurface) {
gfxDebug() << *this << ": DrawSurface() can't draw surface";
return;
}
aSurface = dataSurface.get();
}
if (aSource.IsEmpty()) {
return;
}
MarkChanged();
SkRect destRect = RectToSkRect(aDest);
SkRect sourceRect = RectToSkRect(aSource);
TempBitmap bitmap = GetBitmapForSurface(aSurface);
AutoPaintSetup paint(mCanvas.get(), aOptions, &aDest);
if (aSurfOptions.mFilter == Filter::POINT) {
paint.mPaint.setFilterLevel(SkPaint::kNone_FilterLevel);
}
mCanvas->drawBitmapRectToRect(bitmap.mBitmap, &sourceRect, destRect, &paint.mPaint);
}
TemporaryRef<DataSourceSurface>
SourceSurfaceD2DTarget::GetDataSurface()
{
RefPtr<DataSourceSurfaceD2DTarget> dataSurf =
new DataSourceSurfaceD2DTarget();
D3D10_TEXTURE2D_DESC desc;
mTexture->GetDesc(&desc);
desc.CPUAccessFlags = D3D10_CPU_ACCESS_READ;
desc.Usage = D3D10_USAGE_STAGING;
desc.BindFlags = 0;
desc.MiscFlags = 0;
HRESULT hr = Factory::GetDirect3D10Device()->CreateTexture2D(&desc, nullptr, byRef(dataSurf->mTexture));
if (FAILED(hr)) {
gfxDebug() << "Failed to create staging texture for SourceSurface. Code: " << hr;
return nullptr;
}
Factory::GetDirect3D10Device()->CopyResource(dataSurf->mTexture, mTexture);
return dataSurf;
}
TemporaryRef<ID2D1Brush>
DrawTargetD2D1::CreateBrushForPattern(const Pattern &aPattern, Float aAlpha)
{
if (!IsPatternSupportedByD2D(aPattern)) {
RefPtr<ID2D1SolidColorBrush> colBrush;
mDC->CreateSolidColorBrush(D2D1::ColorF(1.0f, 1.0f, 1.0f, 1.0f), byRef(colBrush));
return colBrush;
}
if (aPattern.GetType() == PatternType::COLOR) {
RefPtr<ID2D1SolidColorBrush> colBrush;
Color color = static_cast<const ColorPattern*>(&aPattern)->mColor;
mDC->CreateSolidColorBrush(D2D1::ColorF(color.r, color.g,
color.b, color.a),
D2D1::BrushProperties(aAlpha),
byRef(colBrush));
return colBrush;
} else if (aPattern.GetType() == PatternType::LINEAR_GRADIENT) {
RefPtr<ID2D1LinearGradientBrush> gradBrush;
const LinearGradientPattern *pat =
static_cast<const LinearGradientPattern*>(&aPattern);
GradientStopsD2D *stops = static_cast<GradientStopsD2D*>(pat->mStops.get());
if (!stops) {
gfxDebug() << "No stops specified for gradient pattern.";
return nullptr;
}
if (pat->mBegin == pat->mEnd) {
RefPtr<ID2D1SolidColorBrush> colBrush;
uint32_t stopCount = stops->mStopCollection->GetGradientStopCount();
vector<D2D1_GRADIENT_STOP> d2dStops(stopCount);
stops->mStopCollection->GetGradientStops(&d2dStops.front(), stopCount);
mDC->CreateSolidColorBrush(d2dStops.back().color,
D2D1::BrushProperties(aAlpha),
byRef(colBrush));
return colBrush;
}
mDC->CreateLinearGradientBrush(D2D1::LinearGradientBrushProperties(D2DPoint(pat->mBegin),
D2DPoint(pat->mEnd)),
D2D1::BrushProperties(aAlpha, D2DMatrix(pat->mMatrix)),
stops->mStopCollection,
byRef(gradBrush));
return gradBrush;
} else if (aPattern.GetType() == PatternType::RADIAL_GRADIENT) {
RefPtr<ID2D1RadialGradientBrush> gradBrush;
const RadialGradientPattern *pat =
static_cast<const RadialGradientPattern*>(&aPattern);
GradientStopsD2D *stops = static_cast<GradientStopsD2D*>(pat->mStops.get());
if (!stops) {
gfxDebug() << "No stops specified for gradient pattern.";
return nullptr;
}
// This will not be a complex radial gradient brush.
mDC->CreateRadialGradientBrush(
D2D1::RadialGradientBrushProperties(D2DPoint(pat->mCenter2),
D2DPoint(pat->mCenter1 - pat->mCenter2),
pat->mRadius2, pat->mRadius2),
D2D1::BrushProperties(aAlpha, D2DMatrix(pat->mMatrix)),
stops->mStopCollection,
byRef(gradBrush));
return gradBrush;
} else if (aPattern.GetType() == PatternType::SURFACE) {
const SurfacePattern *pat =
static_cast<const SurfacePattern*>(&aPattern);
if (!pat->mSurface) {
gfxDebug() << "No source surface specified for surface pattern";
return nullptr;
}
Matrix mat = pat->mMatrix;
RefPtr<ID2D1ImageBrush> imageBrush;
RefPtr<ID2D1Image> image = GetImageForSurface(pat->mSurface, mat, pat->mExtendMode);
mDC->CreateImageBrush(image,
D2D1::ImageBrushProperties(D2D1::RectF(0, 0,
Float(pat->mSurface->GetSize().width),
Float(pat->mSurface->GetSize().height)),
D2DExtend(pat->mExtendMode), D2DExtend(pat->mExtendMode),
D2DInterpolationMode(pat->mFilter)),
D2D1::BrushProperties(aAlpha, D2DMatrix(mat)),
byRef(imageBrush));
return imageBrush;
}
gfxWarning() << "Invalid pattern type detected.";
return nullptr;
}
void
DrawTargetD2D1::FillGlyphs(ScaledFont *aFont,
const GlyphBuffer &aBuffer,
const Pattern &aPattern,
const DrawOptions &aOptions,
const GlyphRenderingOptions *aRenderingOptions)
{
if (aFont->GetType() != FontType::DWRITE) {
gfxDebug() << *this << ": Ignoring drawing call for incompatible font.";
return;
}
ScaledFontDWrite *font = static_cast<ScaledFontDWrite*>(aFont);
IDWriteRenderingParams *params = nullptr;
if (aRenderingOptions) {
if (aRenderingOptions->GetType() != FontType::DWRITE) {
gfxDebug() << *this << ": Ignoring incompatible GlyphRenderingOptions.";
// This should never happen.
MOZ_ASSERT(false);
} else {
params = static_cast<const GlyphRenderingOptionsDWrite*>(aRenderingOptions)->mParams;
}
}
AntialiasMode aaMode = font->GetDefaultAAMode();
if (aOptions.mAntialiasMode != AntialiasMode::DEFAULT) {
aaMode = aOptions.mAntialiasMode;
}
PrepareForDrawing(aOptions.mCompositionOp, aPattern);
bool forceClearType = false;
if (mFormat == SurfaceFormat::B8G8R8A8 && mPermitSubpixelAA &&
aOptions.mCompositionOp == CompositionOp::OP_OVER && aaMode == AntialiasMode::SUBPIXEL) {
forceClearType = true;
}
D2D1_TEXT_ANTIALIAS_MODE d2dAAMode = D2D1_TEXT_ANTIALIAS_MODE_DEFAULT;
switch (aaMode) {
case AntialiasMode::NONE:
d2dAAMode = D2D1_TEXT_ANTIALIAS_MODE_ALIASED;
break;
case AntialiasMode::GRAY:
d2dAAMode = D2D1_TEXT_ANTIALIAS_MODE_GRAYSCALE;
break;
case AntialiasMode::SUBPIXEL:
d2dAAMode = D2D1_TEXT_ANTIALIAS_MODE_CLEARTYPE;
break;
default:
d2dAAMode = D2D1_TEXT_ANTIALIAS_MODE_DEFAULT;
}
if (d2dAAMode == D2D1_TEXT_ANTIALIAS_MODE_CLEARTYPE &&
mFormat != SurfaceFormat::B8G8R8X8 && !forceClearType) {
d2dAAMode = D2D1_TEXT_ANTIALIAS_MODE_GRAYSCALE;
}
mDC->SetTextAntialiasMode(d2dAAMode);
if (params != mTextRenderingParams) {
mDC->SetTextRenderingParams(params);
mTextRenderingParams = params;
}
RefPtr<ID2D1Brush> brush = CreateBrushForPattern(aPattern, aOptions.mAlpha);
AutoDWriteGlyphRun autoRun;
DWriteGlyphRunFromGlyphs(aBuffer, font, &autoRun);
if (brush) {
mDC->DrawGlyphRun(D2D1::Point2F(), &autoRun, brush);
}
FinalizeDrawing(aOptions.mCompositionOp, aPattern);
}