1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/2d/DrawTargetCG.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,190 @@
1.4 +/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
1.5 + * This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#ifndef mozilla_gfx_DrawTargetCG_h
1.10 +#define mozilla_gfx_DrawTargetCG_h
1.11 +
1.12 +#include <ApplicationServices/ApplicationServices.h>
1.13 +
1.14 +#include "2D.h"
1.15 +#include "Rect.h"
1.16 +#include "PathCG.h"
1.17 +#include "SourceSurfaceCG.h"
1.18 +#include "GLDefs.h"
1.19 +#include "Tools.h"
1.20 +
1.21 +namespace mozilla {
1.22 +namespace gfx {
1.23 +
1.24 +static inline CGAffineTransform
1.25 +GfxMatrixToCGAffineTransform(Matrix m)
1.26 +{
1.27 + CGAffineTransform t;
1.28 + t.a = m._11;
1.29 + t.b = m._12;
1.30 + t.c = m._21;
1.31 + t.d = m._22;
1.32 + t.tx = m._31;
1.33 + t.ty = m._32;
1.34 + return t;
1.35 +}
1.36 +
1.37 +static inline Rect
1.38 +CGRectToRect(CGRect rect)
1.39 +{
1.40 + return Rect(rect.origin.x,
1.41 + rect.origin.y,
1.42 + rect.size.width,
1.43 + rect.size.height);
1.44 +}
1.45 +
1.46 +static inline Point
1.47 +CGPointToPoint(CGPoint point)
1.48 +{
1.49 + return Point(point.x, point.y);
1.50 +}
1.51 +
1.52 +static inline void
1.53 +SetStrokeOptions(CGContextRef cg, const StrokeOptions &aStrokeOptions)
1.54 +{
1.55 + switch (aStrokeOptions.mLineCap)
1.56 + {
1.57 + case CapStyle::BUTT:
1.58 + CGContextSetLineCap(cg, kCGLineCapButt);
1.59 + break;
1.60 + case CapStyle::ROUND:
1.61 + CGContextSetLineCap(cg, kCGLineCapRound);
1.62 + break;
1.63 + case CapStyle::SQUARE:
1.64 + CGContextSetLineCap(cg, kCGLineCapSquare);
1.65 + break;
1.66 + }
1.67 +
1.68 + switch (aStrokeOptions.mLineJoin)
1.69 + {
1.70 + case JoinStyle::BEVEL:
1.71 + CGContextSetLineJoin(cg, kCGLineJoinBevel);
1.72 + break;
1.73 + case JoinStyle::ROUND:
1.74 + CGContextSetLineJoin(cg, kCGLineJoinRound);
1.75 + break;
1.76 + case JoinStyle::MITER:
1.77 + case JoinStyle::MITER_OR_BEVEL:
1.78 + CGContextSetLineJoin(cg, kCGLineJoinMiter);
1.79 + break;
1.80 + }
1.81 +
1.82 + CGContextSetLineWidth(cg, aStrokeOptions.mLineWidth);
1.83 + CGContextSetMiterLimit(cg, aStrokeOptions.mMiterLimit);
1.84 +
1.85 + // XXX: rename mDashLength to dashLength
1.86 + if (aStrokeOptions.mDashLength > 0) {
1.87 + // we use a regular array instead of a std::vector here because we don't want to leak the <vector> include
1.88 + CGFloat *dashes = new CGFloat[aStrokeOptions.mDashLength];
1.89 + for (size_t i=0; i<aStrokeOptions.mDashLength; i++) {
1.90 + dashes[i] = aStrokeOptions.mDashPattern[i];
1.91 + }
1.92 + CGContextSetLineDash(cg, aStrokeOptions.mDashOffset, dashes, aStrokeOptions.mDashLength);
1.93 + delete[] dashes;
1.94 + }
1.95 +}
1.96 +
1.97 +
1.98 +class DrawTargetCG : public DrawTarget
1.99 +{
1.100 +public:
1.101 + MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(DrawTargetCG)
1.102 + friend class BorrowedCGContext;
1.103 + DrawTargetCG();
1.104 + virtual ~DrawTargetCG();
1.105 +
1.106 + virtual BackendType GetType() const;
1.107 + virtual TemporaryRef<SourceSurface> Snapshot();
1.108 +
1.109 + virtual void DrawSurface(SourceSurface *aSurface,
1.110 + const Rect &aDest,
1.111 + const Rect &aSource,
1.112 + const DrawSurfaceOptions &aSurfOptions = DrawSurfaceOptions(),
1.113 + const DrawOptions &aOptions = DrawOptions());
1.114 + virtual void DrawFilter(FilterNode *aNode,
1.115 + const Rect &aSourceRect,
1.116 + const Point &aDestPoint,
1.117 + const DrawOptions &aOptions = DrawOptions());
1.118 + virtual void MaskSurface(const Pattern &aSource,
1.119 + SourceSurface *aMask,
1.120 + Point aOffset,
1.121 + const DrawOptions &aOptions = DrawOptions());
1.122 +
1.123 + virtual void FillRect(const Rect &aRect,
1.124 + const Pattern &aPattern,
1.125 + const DrawOptions &aOptions = DrawOptions());
1.126 +
1.127 +
1.128 + //XXX: why do we take a reference to SurfaceFormat?
1.129 + bool Init(BackendType aType, const IntSize &aSize, SurfaceFormat&);
1.130 + bool Init(BackendType aType, unsigned char* aData, const IntSize &aSize, int32_t aStride, SurfaceFormat aFormat);
1.131 + bool Init(CGContextRef cgContext, const IntSize &aSize);
1.132 +
1.133 + // Flush if using IOSurface context
1.134 + virtual void Flush();
1.135 +
1.136 + virtual void DrawSurfaceWithShadow(SourceSurface *, const Point &, const Color &, const Point &, Float, CompositionOp);
1.137 + virtual void ClearRect(const Rect &);
1.138 + virtual void CopySurface(SourceSurface *, const IntRect&, const IntPoint&);
1.139 + virtual void StrokeRect(const Rect &, const Pattern &, const StrokeOptions&, const DrawOptions&);
1.140 + virtual void StrokeLine(const Point &, const Point &, const Pattern &, const StrokeOptions &, const DrawOptions &);
1.141 + virtual void Stroke(const Path *, const Pattern &, const StrokeOptions &, const DrawOptions &);
1.142 + virtual void Fill(const Path *, const Pattern &, const DrawOptions &);
1.143 + virtual void FillGlyphs(ScaledFont *, const GlyphBuffer&, const Pattern &, const DrawOptions &, const GlyphRenderingOptions *);
1.144 + virtual void Mask(const Pattern &aSource,
1.145 + const Pattern &aMask,
1.146 + const DrawOptions &aOptions = DrawOptions());
1.147 + virtual void PushClip(const Path *);
1.148 + virtual void PushClipRect(const Rect &aRect);
1.149 + virtual void PopClip();
1.150 + virtual TemporaryRef<SourceSurface> CreateSourceSurfaceFromNativeSurface(const NativeSurface&) const { return nullptr;}
1.151 + virtual TemporaryRef<DrawTarget> CreateSimilarDrawTarget(const IntSize &, SurfaceFormat) const;
1.152 + virtual TemporaryRef<PathBuilder> CreatePathBuilder(FillRule) const;
1.153 + virtual TemporaryRef<GradientStops> CreateGradientStops(GradientStop *, uint32_t,
1.154 + ExtendMode aExtendMode = ExtendMode::CLAMP) const;
1.155 + virtual TemporaryRef<FilterNode> CreateFilter(FilterType aType);
1.156 +
1.157 + virtual void *GetNativeSurface(NativeSurfaceType);
1.158 +
1.159 + virtual IntSize GetSize() { return mSize; }
1.160 +
1.161 +
1.162 + /* This is for creating good compatible surfaces */
1.163 + virtual TemporaryRef<SourceSurface> CreateSourceSurfaceFromData(unsigned char *aData,
1.164 + const IntSize &aSize,
1.165 + int32_t aStride,
1.166 + SurfaceFormat aFormat) const;
1.167 + virtual TemporaryRef<SourceSurface> OptimizeSourceSurface(SourceSurface *aSurface) const;
1.168 + CGContextRef GetCGContext() {
1.169 + return mCg;
1.170 + }
1.171 +private:
1.172 + void MarkChanged();
1.173 +
1.174 + IntSize mSize;
1.175 + CGColorSpaceRef mColorSpace;
1.176 + CGContextRef mCg;
1.177 +
1.178 + /**
1.179 + * The image buffer, if the buffer is owned by this class.
1.180 + * If the DrawTarget was created for a pre-existing buffer or if the buffer's
1.181 + * lifetime is managed by CoreGraphics, mData will be null.
1.182 + * Data owned by DrawTargetCG will be deallocated in the destructor.
1.183 + */
1.184 + AlignedArray<uint8_t> mData;
1.185 +
1.186 + RefPtr<SourceSurfaceCGContext> mSnapshot;
1.187 +};
1.188 +
1.189 +}
1.190 +}
1.191 +
1.192 +#endif
1.193 +
