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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;
void Clear(const Rect& aRect, bool aClipped);
void Clear() { Clear(Rect(GetRect()), false); }
virtual void ClearRect(const Rect& aRect) override { Clear(aRect, true); }
void BlendSurface(SourceSurface* aSurface, const IntRect& aSourceRect,
const IntPoint& aDestination, CompositionOp aOperator);
virtual void CopySurface(SourceSurface* aSurface, const IntRect& aSourceRect,
const IntPoint& aDestination) override {
BlendSurface(aSurface, aSourceRect, aDestination, CompositionOp::OP_SOURCE);
}
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
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