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+/* -*- 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