/* -*- 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 SkShader;
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);
void DrawGlyphMask(ScaledFont* aFont,
const GlyphBuffer& aBuffer,
const DeviceColor& aColor,
const StrokeOptions* aStrokeOptions = nullptr,
const DrawOptions& aOptions = DrawOptions());
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(),
SkShader* aShader = nullptr);
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
