mirror of
https://github.com/mozilla/gecko-dev.git
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213 lines
9.0 KiB
C++
213 lines
9.0 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef _MOZILLA_GFX_DRAWTARGETSKIA_H
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#define _MOZILLA_GFX_DRAWTARGETSKIA_H
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#include "2D.h"
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#include <sstream>
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#include <vector>
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#ifdef MOZ_WIDGET_COCOA
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# include <ApplicationServices/ApplicationServices.h>
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#endif
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class SkCanvas;
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class SkSurface;
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namespace mozilla {
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template <>
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class RefPtrTraits<SkSurface> {
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public:
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static void Release(SkSurface* aSurface);
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static void AddRef(SkSurface* aSurface);
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};
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namespace gfx {
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class DataSourceSurface;
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class SourceSurfaceSkia;
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class BorrowedCGContext;
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class DrawTargetSkia : public DrawTarget {
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public:
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MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(DrawTargetSkia, override)
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DrawTargetSkia();
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virtual ~DrawTargetSkia();
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virtual DrawTargetType GetType() const override;
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virtual BackendType GetBackendType() const override {
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return BackendType::SKIA;
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}
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already_AddRefed<SourceSurface> Snapshot(SurfaceFormat aFormat);
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virtual already_AddRefed<SourceSurface> Snapshot() override {
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return Snapshot(mFormat);
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}
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already_AddRefed<SourceSurface> GetBackingSurface() override;
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virtual IntSize GetSize() const override { return mSize; };
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virtual bool LockBits(uint8_t** aData, IntSize* aSize, int32_t* aStride,
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SurfaceFormat* aFormat,
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IntPoint* aOrigin = nullptr) override;
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virtual void ReleaseBits(uint8_t* aData) override;
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virtual void Flush() override;
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virtual void DrawSurface(
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SourceSurface* aSurface, const Rect& aDest, const Rect& aSource,
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const DrawSurfaceOptions& aSurfOptions = DrawSurfaceOptions(),
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const DrawOptions& aOptions = DrawOptions()) override;
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virtual void DrawFilter(FilterNode* aNode, const Rect& aSourceRect,
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const Point& aDestPoint,
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const DrawOptions& aOptions = DrawOptions()) override;
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virtual void DrawSurfaceWithShadow(SourceSurface* aSurface,
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const Point& aDest,
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const ShadowOptions& aShadow,
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CompositionOp aOperator) override;
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virtual void ClearRect(const Rect& aRect) override;
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virtual void CopySurface(SourceSurface* aSurface, const IntRect& aSourceRect,
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const IntPoint& aDestination) override;
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virtual void FillRect(const Rect& aRect, const Pattern& aPattern,
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const DrawOptions& aOptions = DrawOptions()) override;
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virtual void StrokeRect(const Rect& aRect, const Pattern& aPattern,
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const StrokeOptions& aStrokeOptions = StrokeOptions(),
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const DrawOptions& aOptions = DrawOptions()) override;
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virtual void StrokeLine(const Point& aStart, const Point& aEnd,
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const Pattern& aPattern,
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const StrokeOptions& aStrokeOptions = StrokeOptions(),
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const DrawOptions& aOptions = DrawOptions()) override;
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virtual void Stroke(const Path* aPath, const Pattern& aPattern,
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const StrokeOptions& aStrokeOptions = StrokeOptions(),
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const DrawOptions& aOptions = DrawOptions()) override;
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virtual void Fill(const Path* aPath, const Pattern& aPattern,
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const DrawOptions& aOptions = DrawOptions()) override;
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virtual void FillGlyphs(ScaledFont* aFont, const GlyphBuffer& aBuffer,
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const Pattern& aPattern,
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const DrawOptions& aOptions = DrawOptions()) override;
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virtual void StrokeGlyphs(
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ScaledFont* aFont, const GlyphBuffer& aBuffer, const Pattern& aPattern,
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const StrokeOptions& aStrokeOptions = StrokeOptions(),
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const DrawOptions& aOptions = DrawOptions()) override;
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virtual void Mask(const Pattern& aSource, const Pattern& aMask,
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const DrawOptions& aOptions = DrawOptions()) override;
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virtual void MaskSurface(
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const Pattern& aSource, SourceSurface* aMask, Point aOffset,
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const DrawOptions& aOptions = DrawOptions()) override;
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virtual bool Draw3DTransformedSurface(SourceSurface* aSurface,
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const Matrix4x4& aMatrix) override;
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virtual void PushClip(const Path* aPath) override;
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virtual void PushClipRect(const Rect& aRect) override;
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virtual void PushDeviceSpaceClipRects(const IntRect* aRects,
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uint32_t aCount) override;
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virtual void PopClip() override;
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virtual bool RemoveAllClips() override;
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virtual void PushLayer(bool aOpaque, Float aOpacity, SourceSurface* aMask,
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const Matrix& aMaskTransform,
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const IntRect& aBounds = IntRect(),
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bool aCopyBackground = false) override;
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virtual void PushLayerWithBlend(
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bool aOpaque, Float aOpacity, SourceSurface* aMask,
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const Matrix& aMaskTransform, const IntRect& aBounds = IntRect(),
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bool aCopyBackground = false,
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CompositionOp aCompositionOp = CompositionOp::OP_OVER) override;
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virtual void PopLayer() override;
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virtual already_AddRefed<SourceSurface> CreateSourceSurfaceFromData(
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unsigned char* aData, const IntSize& aSize, int32_t aStride,
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SurfaceFormat aFormat) const override;
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virtual already_AddRefed<SourceSurface> OptimizeSourceSurface(
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SourceSurface* aSurface) const override;
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virtual already_AddRefed<SourceSurface> OptimizeSourceSurfaceForUnknownAlpha(
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SourceSurface* aSurface) const override;
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virtual already_AddRefed<SourceSurface> CreateSourceSurfaceFromNativeSurface(
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const NativeSurface& aSurface) const override;
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virtual already_AddRefed<DrawTarget> CreateSimilarDrawTarget(
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const IntSize& aSize, SurfaceFormat aFormat) const override;
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virtual bool CanCreateSimilarDrawTarget(const IntSize& aSize,
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SurfaceFormat aFormat) const override;
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virtual RefPtr<DrawTarget> CreateClippedDrawTarget(
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const Rect& aBounds, SurfaceFormat aFormat) override;
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virtual already_AddRefed<PathBuilder> CreatePathBuilder(
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FillRule aFillRule = FillRule::FILL_WINDING) const override;
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virtual already_AddRefed<GradientStops> CreateGradientStops(
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GradientStop* aStops, uint32_t aNumStops,
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ExtendMode aExtendMode = ExtendMode::CLAMP) const override;
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virtual already_AddRefed<FilterNode> CreateFilter(FilterType aType) override;
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virtual void SetTransform(const Matrix& aTransform) override;
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virtual void* GetNativeSurface(NativeSurfaceType aType) override;
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virtual void DetachAllSnapshots() override { MarkChanged(); }
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bool Init(const IntSize& aSize, SurfaceFormat aFormat);
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bool Init(unsigned char* aData, const IntSize& aSize, int32_t aStride,
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SurfaceFormat aFormat, bool aUninitialized = false);
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bool Init(SkCanvas* aCanvas);
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bool Init(RefPtr<DataSourceSurface>&& aSurface);
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// Skia assumes that texture sizes fit in 16-bit signed integers.
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static size_t GetMaxSurfaceSize() { return 32767; }
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operator std::string() const {
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std::stringstream stream;
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stream << "DrawTargetSkia(" << this << ")";
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return stream.str();
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}
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Maybe<IntRect> GetDeviceClipRect(bool aAllowComplex = false) const;
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Maybe<Rect> GetGlyphLocalBounds(ScaledFont* aFont, const GlyphBuffer& aBuffer,
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const Pattern& aPattern,
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const StrokeOptions* aStrokeOptions,
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const DrawOptions& aOptions);
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private:
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friend class SourceSurfaceSkia;
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static void ReleaseMappedSkSurface(void* aPixels, void* aContext);
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void MarkChanged();
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void DrawGlyphs(ScaledFont* aFont, const GlyphBuffer& aBuffer,
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const Pattern& aPattern,
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const StrokeOptions* aStrokeOptions = nullptr,
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const DrawOptions& aOptions = DrawOptions());
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struct PushedLayer {
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PushedLayer(bool aOldPermitSubpixelAA, SourceSurface* aMask)
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: mOldPermitSubpixelAA(aOldPermitSubpixelAA), mMask(aMask) {}
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bool mOldPermitSubpixelAA;
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RefPtr<SourceSurface> mMask;
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};
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std::vector<PushedLayer> mPushedLayers;
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IntSize mSize;
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RefPtr<SkSurface> mSurface;
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SkCanvas* mCanvas = nullptr;
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RefPtr<DataSourceSurface> mBackingSurface;
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RefPtr<SourceSurfaceSkia> mSnapshot;
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Mutex mSnapshotLock MOZ_UNANNOTATED;
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#ifdef MOZ_WIDGET_COCOA
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friend class BorrowedCGContext;
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CGContextRef BorrowCGContext(const DrawOptions& aOptions);
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void ReturnCGContext(CGContextRef);
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bool FillGlyphsWithCG(ScaledFont* aFont, const GlyphBuffer& aBuffer,
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const Pattern& aPattern,
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const DrawOptions& aOptions = DrawOptions());
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CGContextRef mCG;
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CGColorSpaceRef mColorSpace;
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uint8_t* mCanvasData;
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IntSize mCGSize;
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bool mNeedLayer;
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#endif
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};
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} // namespace gfx
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} // namespace mozilla
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#endif // _MOZILLA_GFX_SOURCESURFACESKIA_H
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