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Diffstat (limited to 'gfx/2d/DrawTargetSkia.h')
| -rw-r--r-- | gfx/2d/DrawTargetSkia.h | 212 |
1 files changed, 212 insertions, 0 deletions
diff --git a/gfx/2d/DrawTargetSkia.h b/gfx/2d/DrawTargetSkia.h new file mode 100644 index 0000000000..e091a9e937 --- /dev/null +++ b/gfx/2d/DrawTargetSkia.h @@ -0,0 +1,212 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set ts=8 sts=2 et sw=2 tw=80: */ +/* 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/. */ + +#ifndef _MOZILLA_GFX_DRAWTARGETSKIA_H +#define _MOZILLA_GFX_DRAWTARGETSKIA_H + +#include "2D.h" +#include <sstream> +#include <vector> + +#ifdef MOZ_WIDGET_COCOA +# include <ApplicationServices/ApplicationServices.h> +#endif + +class SkCanvas; +class SkSurface; + +namespace mozilla { + +template <> +class RefPtrTraits<SkSurface> { + public: + static void Release(SkSurface* aSurface); + static void AddRef(SkSurface* aSurface); +}; + +namespace gfx { + +class DataSourceSurface; +class SourceSurfaceSkia; +class BorrowedCGContext; + +class DrawTargetSkia : public DrawTarget { + public: + MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(DrawTargetSkia, override) + DrawTargetSkia(); + virtual ~DrawTargetSkia(); + + virtual DrawTargetType GetType() const override; + virtual BackendType GetBackendType() const override { + return BackendType::SKIA; + } + already_AddRefed<SourceSurface> Snapshot(SurfaceFormat aFormat); + virtual already_AddRefed<SourceSurface> Snapshot() override { + return Snapshot(mFormat); + } + already_AddRefed<SourceSurface> GetBackingSurface() override; + virtual IntSize GetSize() const override { return mSize; }; + virtual bool LockBits(uint8_t** aData, IntSize* aSize, int32_t* aStride, + SurfaceFormat* aFormat, + IntPoint* aOrigin = nullptr) override; + virtual void ReleaseBits(uint8_t* aData) override; + virtual void Flush() override; + virtual void DrawSurface( + SourceSurface* aSurface, const Rect& aDest, const Rect& aSource, + const DrawSurfaceOptions& aSurfOptions = DrawSurfaceOptions(), + const DrawOptions& aOptions = DrawOptions()) override; + virtual void DrawFilter(FilterNode* aNode, const Rect& aSourceRect, + const Point& aDestPoint, + const DrawOptions& aOptions = DrawOptions()) override; + virtual void DrawSurfaceWithShadow(SourceSurface* aSurface, + const Point& aDest, + const ShadowOptions& aShadow, + CompositionOp aOperator) override; + virtual void ClearRect(const Rect& aRect) override; + virtual void CopySurface(SourceSurface* aSurface, const IntRect& aSourceRect, + const IntPoint& aDestination) override; + virtual void FillRect(const Rect& aRect, const Pattern& aPattern, + const DrawOptions& aOptions = DrawOptions()) override; + virtual void StrokeRect(const Rect& aRect, const Pattern& aPattern, + const StrokeOptions& aStrokeOptions = StrokeOptions(), + const DrawOptions& aOptions = DrawOptions()) override; + virtual void StrokeLine(const Point& aStart, const Point& aEnd, + const Pattern& aPattern, + const StrokeOptions& aStrokeOptions = StrokeOptions(), + const DrawOptions& aOptions = DrawOptions()) override; + virtual void Stroke(const Path* aPath, const Pattern& aPattern, + const StrokeOptions& aStrokeOptions = StrokeOptions(), + const DrawOptions& aOptions = DrawOptions()) override; + virtual void Fill(const Path* aPath, const Pattern& aPattern, + const DrawOptions& aOptions = DrawOptions()) override; + + virtual void FillGlyphs(ScaledFont* aFont, const GlyphBuffer& aBuffer, + const Pattern& aPattern, + const DrawOptions& aOptions = DrawOptions()) override; + virtual void StrokeGlyphs( + ScaledFont* aFont, const GlyphBuffer& aBuffer, const Pattern& aPattern, + const StrokeOptions& aStrokeOptions = StrokeOptions(), + const DrawOptions& aOptions = DrawOptions()) override; + virtual void Mask(const Pattern& aSource, const Pattern& aMask, + const DrawOptions& aOptions = DrawOptions()) override; + virtual void MaskSurface( + const Pattern& aSource, SourceSurface* aMask, Point aOffset, + const DrawOptions& aOptions = DrawOptions()) override; + virtual bool Draw3DTransformedSurface(SourceSurface* aSurface, + const Matrix4x4& aMatrix) override; + virtual void PushClip(const Path* aPath) override; + virtual void PushClipRect(const Rect& aRect) override; + virtual void PushDeviceSpaceClipRects(const IntRect* aRects, + uint32_t aCount) override; + virtual void PopClip() override; + virtual bool RemoveAllClips() override; + virtual void PushLayer(bool aOpaque, Float aOpacity, SourceSurface* aMask, + const Matrix& aMaskTransform, + const IntRect& aBounds = IntRect(), + bool aCopyBackground = false) override; + virtual void PushLayerWithBlend( + bool aOpaque, Float aOpacity, SourceSurface* aMask, + const Matrix& aMaskTransform, const IntRect& aBounds = IntRect(), + bool aCopyBackground = false, + CompositionOp aCompositionOp = CompositionOp::OP_OVER) override; + virtual void PopLayer() override; + virtual already_AddRefed<SourceSurface> CreateSourceSurfaceFromData( + unsigned char* aData, const IntSize& aSize, int32_t aStride, + SurfaceFormat aFormat) const override; + virtual already_AddRefed<SourceSurface> OptimizeSourceSurface( + SourceSurface* aSurface) const override; + virtual already_AddRefed<SourceSurface> OptimizeSourceSurfaceForUnknownAlpha( + SourceSurface* aSurface) const override; + virtual already_AddRefed<SourceSurface> CreateSourceSurfaceFromNativeSurface( + const NativeSurface& aSurface) const override; + virtual already_AddRefed<DrawTarget> CreateSimilarDrawTarget( + const IntSize& aSize, SurfaceFormat aFormat) const override; + virtual bool CanCreateSimilarDrawTarget(const IntSize& aSize, + SurfaceFormat aFormat) const override; + virtual RefPtr<DrawTarget> CreateClippedDrawTarget( + const Rect& aBounds, SurfaceFormat aFormat) override; + + virtual already_AddRefed<PathBuilder> CreatePathBuilder( + FillRule aFillRule = FillRule::FILL_WINDING) const override; + + virtual already_AddRefed<GradientStops> CreateGradientStops( + GradientStop* aStops, uint32_t aNumStops, + ExtendMode aExtendMode = ExtendMode::CLAMP) const override; + virtual already_AddRefed<FilterNode> CreateFilter(FilterType aType) override; + virtual void SetTransform(const Matrix& aTransform) override; + virtual void* GetNativeSurface(NativeSurfaceType aType) override; + virtual void DetachAllSnapshots() override { MarkChanged(); } + + bool Init(const IntSize& aSize, SurfaceFormat aFormat); + bool Init(unsigned char* aData, const IntSize& aSize, int32_t aStride, + SurfaceFormat aFormat, bool aUninitialized = false); + bool Init(SkCanvas* aCanvas); + bool Init(RefPtr<DataSourceSurface>&& aSurface); + + // Skia assumes that texture sizes fit in 16-bit signed integers. + static size_t GetMaxSurfaceSize() { return 32767; } + + operator std::string() const { + std::stringstream stream; + stream << "DrawTargetSkia(" << this << ")"; + return stream.str(); + } + + Maybe<IntRect> GetDeviceClipRect(bool aAllowComplex = false) const; + + Maybe<Rect> GetGlyphLocalBounds(ScaledFont* aFont, const GlyphBuffer& aBuffer, + const Pattern& aPattern, + const StrokeOptions* aStrokeOptions, + const DrawOptions& aOptions); + + private: + friend class SourceSurfaceSkia; + + static void ReleaseMappedSkSurface(void* aPixels, void* aContext); + + void MarkChanged(); + + void DrawGlyphs(ScaledFont* aFont, const GlyphBuffer& aBuffer, + const Pattern& aPattern, + const StrokeOptions* aStrokeOptions = nullptr, + const DrawOptions& aOptions = DrawOptions()); + + struct PushedLayer { + PushedLayer(bool aOldPermitSubpixelAA, SourceSurface* aMask) + : mOldPermitSubpixelAA(aOldPermitSubpixelAA), mMask(aMask) {} + bool mOldPermitSubpixelAA; + RefPtr<SourceSurface> mMask; + }; + std::vector<PushedLayer> mPushedLayers; + + IntSize mSize; + RefPtr<SkSurface> mSurface; + SkCanvas* mCanvas = nullptr; + RefPtr<DataSourceSurface> mBackingSurface; + RefPtr<SourceSurfaceSkia> mSnapshot; + Mutex mSnapshotLock MOZ_UNANNOTATED; + +#ifdef MOZ_WIDGET_COCOA + friend class BorrowedCGContext; + + CGContextRef BorrowCGContext(const DrawOptions& aOptions); + void ReturnCGContext(CGContextRef); + bool FillGlyphsWithCG(ScaledFont* aFont, const GlyphBuffer& aBuffer, + const Pattern& aPattern, + const DrawOptions& aOptions = DrawOptions()); + + CGContextRef mCG; + CGColorSpaceRef mColorSpace; + uint8_t* mCanvasData; + IntSize mCGSize; + bool mNeedLayer; +#endif +}; + +} // namespace gfx +} // namespace mozilla + +#endif // _MOZILLA_GFX_SOURCESURFACESKIA_H |