michael@0: /* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
michael@0:  * This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #ifndef mozilla_gfx_DrawTargetCG_h
michael@0: #define mozilla_gfx_DrawTargetCG_h
michael@0: 
michael@0: #include <ApplicationServices/ApplicationServices.h>
michael@0: 
michael@0: #include "2D.h"
michael@0: #include "Rect.h"
michael@0: #include "PathCG.h"
michael@0: #include "SourceSurfaceCG.h"
michael@0: #include "GLDefs.h"
michael@0: #include "Tools.h"
michael@0: 
michael@0: namespace mozilla {
michael@0: namespace gfx {
michael@0: 
michael@0: static inline CGAffineTransform
michael@0: GfxMatrixToCGAffineTransform(Matrix m)
michael@0: {
michael@0:   CGAffineTransform t;
michael@0:   t.a = m._11;
michael@0:   t.b = m._12;
michael@0:   t.c = m._21;
michael@0:   t.d = m._22;
michael@0:   t.tx = m._31;
michael@0:   t.ty = m._32;
michael@0:   return t;
michael@0: }
michael@0: 
michael@0: static inline Rect
michael@0: CGRectToRect(CGRect rect)
michael@0: {
michael@0:   return Rect(rect.origin.x,
michael@0:               rect.origin.y,
michael@0:               rect.size.width,
michael@0:               rect.size.height);
michael@0: }
michael@0: 
michael@0: static inline Point
michael@0: CGPointToPoint(CGPoint point)
michael@0: {
michael@0:   return Point(point.x, point.y);
michael@0: }
michael@0: 
michael@0: static inline void
michael@0: SetStrokeOptions(CGContextRef cg, const StrokeOptions &aStrokeOptions)
michael@0: {
michael@0:   switch (aStrokeOptions.mLineCap)
michael@0:   {
michael@0:     case CapStyle::BUTT:
michael@0:       CGContextSetLineCap(cg, kCGLineCapButt);
michael@0:       break;
michael@0:     case CapStyle::ROUND:
michael@0:       CGContextSetLineCap(cg, kCGLineCapRound);
michael@0:       break;
michael@0:     case CapStyle::SQUARE:
michael@0:       CGContextSetLineCap(cg, kCGLineCapSquare);
michael@0:       break;
michael@0:   }
michael@0: 
michael@0:   switch (aStrokeOptions.mLineJoin)
michael@0:   {
michael@0:     case JoinStyle::BEVEL:
michael@0:       CGContextSetLineJoin(cg, kCGLineJoinBevel);
michael@0:       break;
michael@0:     case JoinStyle::ROUND:
michael@0:       CGContextSetLineJoin(cg, kCGLineJoinRound);
michael@0:       break;
michael@0:     case JoinStyle::MITER:
michael@0:     case JoinStyle::MITER_OR_BEVEL:
michael@0:       CGContextSetLineJoin(cg, kCGLineJoinMiter);
michael@0:       break;
michael@0:   }
michael@0: 
michael@0:   CGContextSetLineWidth(cg, aStrokeOptions.mLineWidth);
michael@0:   CGContextSetMiterLimit(cg, aStrokeOptions.mMiterLimit);
michael@0: 
michael@0:   // XXX: rename mDashLength to dashLength
michael@0:   if (aStrokeOptions.mDashLength > 0) {
michael@0:     // we use a regular array instead of a std::vector here because we don't want to leak the <vector> include
michael@0:     CGFloat *dashes = new CGFloat[aStrokeOptions.mDashLength];
michael@0:     for (size_t i=0; i<aStrokeOptions.mDashLength; i++) {
michael@0:       dashes[i] = aStrokeOptions.mDashPattern[i];
michael@0:     }
michael@0:     CGContextSetLineDash(cg, aStrokeOptions.mDashOffset, dashes, aStrokeOptions.mDashLength);
michael@0:     delete[] dashes;
michael@0:   }
michael@0: }
michael@0: 
michael@0: 
michael@0: class DrawTargetCG : public DrawTarget
michael@0: {
michael@0: public:
michael@0:   MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(DrawTargetCG)
michael@0:   friend class BorrowedCGContext;
michael@0:   DrawTargetCG();
michael@0:   virtual ~DrawTargetCG();
michael@0: 
michael@0:   virtual BackendType GetType() const;
michael@0:   virtual TemporaryRef<SourceSurface> Snapshot();
michael@0: 
michael@0:   virtual void DrawSurface(SourceSurface *aSurface,
michael@0:                            const Rect &aDest,
michael@0:                            const Rect &aSource,
michael@0:                            const DrawSurfaceOptions &aSurfOptions = DrawSurfaceOptions(),
michael@0:                            const DrawOptions &aOptions = DrawOptions());
michael@0:   virtual void DrawFilter(FilterNode *aNode,
michael@0:                           const Rect &aSourceRect,
michael@0:                           const Point &aDestPoint,
michael@0:                           const DrawOptions &aOptions = DrawOptions());
michael@0:   virtual void MaskSurface(const Pattern &aSource,
michael@0:                            SourceSurface *aMask,
michael@0:                            Point aOffset,
michael@0:                            const DrawOptions &aOptions = DrawOptions());
michael@0: 
michael@0:   virtual void FillRect(const Rect &aRect,
michael@0:                         const Pattern &aPattern,
michael@0:                         const DrawOptions &aOptions = DrawOptions());
michael@0: 
michael@0: 
michael@0:   //XXX: why do we take a reference to SurfaceFormat?
michael@0:   bool Init(BackendType aType, const IntSize &aSize, SurfaceFormat&);
michael@0:   bool Init(BackendType aType, unsigned char* aData, const IntSize &aSize, int32_t aStride, SurfaceFormat aFormat);
michael@0:   bool Init(CGContextRef cgContext, const IntSize &aSize);
michael@0: 
michael@0:   // Flush if using IOSurface context
michael@0:   virtual void Flush();
michael@0: 
michael@0:   virtual void DrawSurfaceWithShadow(SourceSurface *, const Point &, const Color &, const Point &, Float, CompositionOp);
michael@0:   virtual void ClearRect(const Rect &);
michael@0:   virtual void CopySurface(SourceSurface *, const IntRect&, const IntPoint&);
michael@0:   virtual void StrokeRect(const Rect &, const Pattern &, const StrokeOptions&, const DrawOptions&);
michael@0:   virtual void StrokeLine(const Point &, const Point &, const Pattern &, const StrokeOptions &, const DrawOptions &);
michael@0:   virtual void Stroke(const Path *, const Pattern &, const StrokeOptions &, const DrawOptions &);
michael@0:   virtual void Fill(const Path *, const Pattern &, const DrawOptions &);
michael@0:   virtual void FillGlyphs(ScaledFont *, const GlyphBuffer&, const Pattern &, const DrawOptions &, const GlyphRenderingOptions *);
michael@0:   virtual void Mask(const Pattern &aSource,
michael@0:                     const Pattern &aMask,
michael@0:                     const DrawOptions &aOptions = DrawOptions());
michael@0:   virtual void PushClip(const Path *);
michael@0:   virtual void PushClipRect(const Rect &aRect);
michael@0:   virtual void PopClip();
michael@0:   virtual TemporaryRef<SourceSurface> CreateSourceSurfaceFromNativeSurface(const NativeSurface&) const { return nullptr;}
michael@0:   virtual TemporaryRef<DrawTarget> CreateSimilarDrawTarget(const IntSize &, SurfaceFormat) const;
michael@0:   virtual TemporaryRef<PathBuilder> CreatePathBuilder(FillRule) const;
michael@0:   virtual TemporaryRef<GradientStops> CreateGradientStops(GradientStop *, uint32_t,
michael@0:                                                           ExtendMode aExtendMode = ExtendMode::CLAMP) const;
michael@0:   virtual TemporaryRef<FilterNode> CreateFilter(FilterType aType);
michael@0: 
michael@0:   virtual void *GetNativeSurface(NativeSurfaceType);
michael@0: 
michael@0:   virtual IntSize GetSize() { return mSize; }
michael@0: 
michael@0: 
michael@0:   /* This is for creating good compatible surfaces */
michael@0:   virtual TemporaryRef<SourceSurface> CreateSourceSurfaceFromData(unsigned char *aData,
michael@0:                                                             const IntSize &aSize,
michael@0:                                                             int32_t aStride,
michael@0:                                                             SurfaceFormat aFormat) const;
michael@0:   virtual TemporaryRef<SourceSurface> OptimizeSourceSurface(SourceSurface *aSurface) const;
michael@0:   CGContextRef GetCGContext() {
michael@0:       return mCg;
michael@0:   }
michael@0: private:
michael@0:   void MarkChanged();
michael@0: 
michael@0:   IntSize mSize;
michael@0:   CGColorSpaceRef mColorSpace;
michael@0:   CGContextRef mCg;
michael@0: 
michael@0:   /**
michael@0:    * The image buffer, if the buffer is owned by this class.
michael@0:    * If the DrawTarget was created for a pre-existing buffer or if the buffer's
michael@0:    * lifetime is managed by CoreGraphics, mData will be null.
michael@0:    * Data owned by DrawTargetCG will be deallocated in the destructor.
michael@0:    */
michael@0:   AlignedArray<uint8_t> mData;
michael@0: 
michael@0:   RefPtr<SourceSurfaceCGContext> mSnapshot;
michael@0: };
michael@0: 
michael@0: }
michael@0: }
michael@0: 
michael@0: #endif
michael@0: