mirror of
https://github.com/classilla/tenfourfox.git
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235 lines
8.2 KiB
Objective-C
235 lines
8.2 KiB
Objective-C
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_gfx_DrawTargetCG_h
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#define mozilla_gfx_DrawTargetCG_h
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#ifdef MOZ_WIDGET_COCOA
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#include <ApplicationServices/ApplicationServices.h>
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#import <OpenGL/OpenGL.h>
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#else
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#include <CoreGraphics/CoreGraphics.h>
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#include <OpenGLES/ES2/gl.h>
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#include <OpenGLES/ES2/glext.h>
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#endif
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typedef float CGFloat; // 10.4
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#include "2D.h"
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#include "Rect.h"
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#include "PathCG.h"
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#include "SourceSurfaceCG.h"
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#include "GLDefs.h"
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#include "Tools.h"
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namespace mozilla {
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namespace gfx {
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static inline CGAffineTransform
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GfxMatrixToCGAffineTransform(const Matrix &m)
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{
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CGAffineTransform t;
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t.a = m._11;
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t.b = m._12;
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t.c = m._21;
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t.d = m._22;
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t.tx = m._31;
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t.ty = m._32;
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return t;
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}
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static inline Rect
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CGRectToRect(CGRect rect)
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{
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return Rect(rect.origin.x,
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rect.origin.y,
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rect.size.width,
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rect.size.height);
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}
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static inline Point
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CGPointToPoint(CGPoint point)
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{
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return Point(point.x, point.y);
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}
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static inline void
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SetStrokeOptions(CGContextRef cg, const StrokeOptions &aStrokeOptions)
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{
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switch (aStrokeOptions.mLineCap)
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{
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case CapStyle::BUTT:
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CGContextSetLineCap(cg, kCGLineCapButt);
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break;
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case CapStyle::ROUND:
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CGContextSetLineCap(cg, kCGLineCapRound);
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break;
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case CapStyle::SQUARE:
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CGContextSetLineCap(cg, kCGLineCapSquare);
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break;
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}
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switch (aStrokeOptions.mLineJoin)
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{
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case JoinStyle::BEVEL:
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CGContextSetLineJoin(cg, kCGLineJoinBevel);
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break;
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case JoinStyle::ROUND:
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CGContextSetLineJoin(cg, kCGLineJoinRound);
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break;
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case JoinStyle::MITER:
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case JoinStyle::MITER_OR_BEVEL:
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CGContextSetLineJoin(cg, kCGLineJoinMiter);
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break;
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}
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CGContextSetLineWidth(cg, aStrokeOptions.mLineWidth);
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CGContextSetMiterLimit(cg, aStrokeOptions.mMiterLimit);
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// XXX: rename mDashLength to dashLength
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if (aStrokeOptions.mDashLength > 0) {
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// we use a regular array instead of a std::vector here because we don't want to leak the <vector> include
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CGFloat *dashes = new CGFloat[aStrokeOptions.mDashLength];
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for (size_t i=0; i<aStrokeOptions.mDashLength; i++) {
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dashes[i] = aStrokeOptions.mDashPattern[i];
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}
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CGContextSetLineDash(cg, aStrokeOptions.mDashOffset, dashes, aStrokeOptions.mDashLength);
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delete[] dashes;
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}
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}
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class GlyphRenderingOptionsCG : public GlyphRenderingOptions
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{
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public:
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MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(GlyphRenderingOptionsCG, override)
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explicit GlyphRenderingOptionsCG(const Color &aFontSmoothingBackgroundColor)
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: mFontSmoothingBackgroundColor(aFontSmoothingBackgroundColor)
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{}
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const Color &FontSmoothingBackgroundColor() const { return mFontSmoothingBackgroundColor; }
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virtual FontType GetType() const override { return FontType::MAC; }
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private:
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Color mFontSmoothingBackgroundColor;
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};
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class DrawTargetCG : public DrawTarget
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{
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public:
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MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(DrawTargetCG, override)
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friend class BorrowedCGContext;
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friend class UnboundnessFixer;
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friend class SourceSurfaceCGBitmapContext;
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DrawTargetCG();
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virtual ~DrawTargetCG();
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virtual DrawTargetType GetType() const override;
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virtual BackendType GetBackendType() const override;
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virtual already_AddRefed<SourceSurface> Snapshot() override;
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virtual void DrawSurface(SourceSurface *aSurface,
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const Rect &aDest,
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const Rect &aSource,
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const DrawSurfaceOptions &aSurfOptions = DrawSurfaceOptions(),
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const DrawOptions &aOptions = DrawOptions()) override;
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virtual void DrawFilter(FilterNode *aNode,
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const Rect &aSourceRect,
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const Point &aDestPoint,
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const DrawOptions &aOptions = DrawOptions()) override;
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virtual void MaskSurface(const Pattern &aSource,
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SourceSurface *aMask,
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Point aOffset,
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const DrawOptions &aOptions = DrawOptions()) override;
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virtual void FillRect(const Rect &aRect,
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const Pattern &aPattern,
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const DrawOptions &aOptions = DrawOptions()) override;
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//XXX: why do we take a reference to SurfaceFormat?
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bool Init(BackendType aType, const IntSize &aSize, SurfaceFormat&);
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bool Init(BackendType aType, unsigned char* aData, const IntSize &aSize, int32_t aStride, SurfaceFormat aFormat);
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bool Init(CGContextRef cgContext, const IntSize &aSize);
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// Flush if using IOSurface context
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virtual void Flush() override;
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virtual void DrawSurfaceWithShadow(SourceSurface *, const Point &, const Color &, const Point &, Float, CompositionOp) override;
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virtual void ClearRect(const Rect &) override;
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virtual void CopySurface(SourceSurface *, const IntRect&, const IntPoint&) override;
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virtual void StrokeRect(const Rect &, const Pattern &, const StrokeOptions&, const DrawOptions&) override;
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virtual void StrokeLine(const Point &, const Point &, const Pattern &, const StrokeOptions &, const DrawOptions &) override;
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virtual void Stroke(const Path *, const Pattern &, const StrokeOptions &, const DrawOptions &) override;
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virtual void Fill(const Path *, const Pattern &, const DrawOptions &) override;
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virtual void FillGlyphs(ScaledFont *, const GlyphBuffer&, const Pattern &, const DrawOptions &, const GlyphRenderingOptions *) override;
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virtual void Mask(const Pattern &aSource,
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const Pattern &aMask,
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const DrawOptions &aOptions = DrawOptions()) override;
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virtual void PushClip(const Path *) override;
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virtual void PushClipRect(const Rect &aRect) override;
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virtual void PopClip() override;
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virtual already_AddRefed<SourceSurface> CreateSourceSurfaceFromNativeSurface(const NativeSurface&) const override { return nullptr;}
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virtual already_AddRefed<DrawTarget> CreateSimilarDrawTarget(const IntSize &, SurfaceFormat) const override;
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virtual already_AddRefed<PathBuilder> CreatePathBuilder(FillRule) const override;
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virtual already_AddRefed<GradientStops> CreateGradientStops(GradientStop *, uint32_t,
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ExtendMode aExtendMode = ExtendMode::CLAMP) const override;
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virtual already_AddRefed<FilterNode> CreateFilter(FilterType aType) override;
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virtual void *GetNativeSurface(NativeSurfaceType) override;
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virtual IntSize GetSize() override { return mSize; }
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virtual void SetTransform(const Matrix &aTransform) override;
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/* This is for creating good compatible surfaces */
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virtual already_AddRefed<SourceSurface> CreateSourceSurfaceFromData(unsigned char *aData,
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const IntSize &aSize,
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int32_t aStride,
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SurfaceFormat aFormat) const override;
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virtual already_AddRefed<SourceSurface> OptimizeSourceSurface(SourceSurface *aSurface) const override;
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CGContextRef GetCGContext() {
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return mCg;
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}
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// 32767 is the maximum size supported by cairo. We clamp to that to make it
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// easier to interoperate.
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static size_t GetMaxSurfaceSize() {
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return 32767;
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}
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private:
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void MarkChanged();
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IntSize mSize;
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CGColorSpaceRef mColorSpace;
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CGContextRef mCg;
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CGAffineTransform mOriginalTransform;
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// Class member to remember which function has CGFontGlyphGetBBoxes.
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bool (*CGFontGetGlyphBBoxesPtr)
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(CGFontRef, const CGGlyph[], size_t, CGRect[]);
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// Ditto for CGContextGetTypePtr.
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unsigned int (*CGContextGetTypePtr) (CGContextRef);
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/**
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* The image buffer, if the buffer is owned by this class.
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* If the DrawTarget was created for a pre-existing buffer or if the buffer's
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* lifetime is managed by CoreGraphics, mData will be null.
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* Data owned by DrawTargetCG will be deallocated in the destructor.
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*/
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AlignedArray<uint8_t> mData;
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RefPtr<SourceSurfaceCGContext> mSnapshot;
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bool mMayContainInvalidPremultipliedData;
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};
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} // namespace gfx
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} // namespace mozilla
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#endif
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