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/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* 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/. */
#include <ApplicationServices/ApplicationServices.h>
#include "2D.h"
#include "Rect.h"
#include "PathCG.h"
#include "SourceSurfaceCG.h"
#include "GLDefs.h"
namespace mozilla {
namespace gfx {
static inline CGAffineTransform
GfxMatrixToCGAffineTransform(Matrix m)
{
CGAffineTransform t;
t.a = m._11;
t.b = m._12;
t.c = m._21;
t.d = m._22;
t.tx = m._31;
t.ty = m._32;
return t;
}
static inline Rect
CGRectToRect(CGRect rect)
{
return Rect(rect.origin.x,
rect.origin.y,
rect.size.width,
rect.size.height);
}
static inline void
SetStrokeOptions(CGContextRef cg, const StrokeOptions &aStrokeOptions)
{
switch (aStrokeOptions.mLineCap)
{
case CAP_BUTT:
CGContextSetLineCap(cg, kCGLineCapButt);
break;
case CAP_ROUND:
CGContextSetLineCap(cg, kCGLineCapRound);
break;
case CAP_SQUARE:
CGContextSetLineCap(cg, kCGLineCapSquare);
break;
}
switch (aStrokeOptions.mLineJoin)
{
case JOIN_BEVEL:
CGContextSetLineJoin(cg, kCGLineJoinBevel);
break;
case JOIN_ROUND:
CGContextSetLineJoin(cg, kCGLineJoinRound);
break;
case JOIN_MITER:
case JOIN_MITER_OR_BEVEL:
CGContextSetLineJoin(cg, kCGLineJoinMiter);
break;
}
CGContextSetLineWidth(cg, aStrokeOptions.mLineWidth);
CGContextSetMiterLimit(cg, aStrokeOptions.mMiterLimit);
// XXX: rename mDashLength to dashLength
if (aStrokeOptions.mDashLength > 0) {
// we use a regular array instead of a std::vector here because we don't want to leak the <vector> include
CGFloat *dashes = new CGFloat[aStrokeOptions.mDashLength];
for (size_t i=0; i<aStrokeOptions.mDashLength; i++) {
dashes[i] = aStrokeOptions.mDashPattern[i];
}
CGContextSetLineDash(cg, aStrokeOptions.mDashOffset, dashes, aStrokeOptions.mDashLength);
delete[] dashes;
}
}
class DrawTargetCG : public DrawTarget
{
public:
DrawTargetCG();
virtual ~DrawTargetCG();
virtual BackendType GetType() const;
virtual TemporaryRef<SourceSurface> Snapshot();
virtual void DrawSurface(SourceSurface *aSurface,
const Rect &aDest,
const Rect &aSource,
const DrawSurfaceOptions &aSurfOptions = DrawSurfaceOptions(),
const DrawOptions &aOptions = DrawOptions());
virtual void MaskSurface(const Pattern &aSource,
SourceSurface *aMask,
Point aOffset,
const DrawOptions &aOptions = DrawOptions());
virtual void FillRect(const Rect &aRect,
const Pattern &aPattern,
const DrawOptions &aOptions = DrawOptions());
//XXX: why do we take a reference to SurfaceFormat?
bool Init(BackendType aType, const IntSize &aSize, SurfaceFormat&);
bool Init(BackendType aType, unsigned char* aData, const IntSize &aSize, int32_t aStride, SurfaceFormat aFormat);
bool Init(CGContextRef cgContext, const IntSize &aSize);
// Flush if using IOSurface context
virtual void Flush();
virtual void DrawSurfaceWithShadow(SourceSurface *, const Point &, const Color &, const Point &, Float, CompositionOp);
virtual void ClearRect(const Rect &);
virtual void CopySurface(SourceSurface *, const IntRect&, const IntPoint&);
virtual void StrokeRect(const Rect &, const Pattern &, const StrokeOptions&, const DrawOptions&);
virtual void StrokeLine(const Point &, const Point &, const Pattern &, const StrokeOptions &, const DrawOptions &);
virtual void Stroke(const Path *, const Pattern &, const StrokeOptions &, const DrawOptions &);
virtual void Fill(const Path *, const Pattern &, const DrawOptions &);
virtual void FillGlyphs(ScaledFont *, const GlyphBuffer&, const Pattern &, const DrawOptions &, const GlyphRenderingOptions *);
virtual void Mask(const Pattern &aSource,
const Pattern &aMask,
const DrawOptions &aOptions = DrawOptions());
virtual void PushClip(const Path *);
virtual void PushClipRect(const Rect &aRect);
virtual void PopClip();
virtual TemporaryRef<SourceSurface> CreateSourceSurfaceFromNativeSurface(const NativeSurface&) const { return nullptr;}
virtual TemporaryRef<DrawTarget> CreateSimilarDrawTarget(const IntSize &, SurfaceFormat) const;
virtual TemporaryRef<PathBuilder> CreatePathBuilder(FillRule) const;
virtual TemporaryRef<GradientStops> CreateGradientStops(GradientStop *, uint32_t,
ExtendMode aExtendMode = EXTEND_CLAMP) const;
virtual void *GetNativeSurface(NativeSurfaceType);
virtual IntSize GetSize() { return mSize; }
/* This is for creating good compatible surfaces */
virtual TemporaryRef<SourceSurface> CreateSourceSurfaceFromData(unsigned char *aData,
const IntSize &aSize,
int32_t aStride,
SurfaceFormat aFormat) const;
virtual TemporaryRef<SourceSurface> OptimizeSourceSurface(SourceSurface *aSurface) const;
CGContextRef GetCGContext() {
return mCg;
}
private:
void MarkChanged();
IntSize mSize;
CGColorSpaceRef mColorSpace;
CGContextRef mCg;
/**
* A pointer to the image buffer if the buffer is owned by this class (set to
* nullptr otherwise).
* The data is not considered owned by DrawTargetCG if the DrawTarget was
* created for a pre-existing buffer or if the buffer's lifetime is managed
* by CoreGraphics.
* Data owned by DrawTargetCG will be deallocated in the destructor.
*/
void *mData;
RefPtr<SourceSurfaceCGContext> mSnapshot;
};
}
}
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