• file
• revisions
• annotate
• diff
• comparison
• raw

gfx/skia/trunk/src/pathops/SkPathOpsQuad.h@129ffea94266 (annotated)

gfx/skia/trunk/src/pathops/SkPathOpsQuad.h

Sat, 03 Jan 2015 20:18:00 +0100

author

Michael Schloh von Bennewitz <michael@schloh.com>

date

Sat, 03 Jan 2015 20:18:00 +0100

branch

TOR_BUG_3246

changeset 7

129ffea94266

permissions

-rw-r--r--

Conditionally enable double key logic according to:
private browsing mode or privacy.thirdparty.isolate preference and
implement in GetCookieStringCommon and FindCookie where it counts...
With some reservations of how to convince FindCookie users to test
condition and pass a nullptr when disabling double key logic.

michael@0	1	/*
michael@0	2	* Copyright 2012 Google Inc.
michael@0	3	*
michael@0	4	* Use of this source code is governed by a BSD-style license that can be
michael@0	5	* found in the LICENSE file.
michael@0	6	*/
michael@0	7
michael@0	8	#ifndef SkPathOpsQuad_DEFINED
michael@0	9	#define SkPathOpsQuad_DEFINED
michael@0	10
michael@0	11	#include "SkPathOpsPoint.h"
michael@0	12
michael@0	13	struct SkDQuadPair {
michael@0	14	const SkDQuad& first() const { return (const SkDQuad&) pts[0]; }
michael@0	15	const SkDQuad& second() const { return (const SkDQuad&) pts[2]; }
michael@0	16	SkDPoint pts[5];
michael@0	17	};
michael@0	18
michael@0	19	struct SkDQuad {
michael@0	20	SkDPoint fPts[3];
michael@0	21
michael@0	22	SkDQuad flip() const {
michael@0	23	SkDQuad result = {{fPts[2], fPts[1], fPts[0]}};
michael@0	24	return result;
michael@0	25	}
michael@0	26
michael@0	27	void set(const SkPoint pts[3]) {
michael@0	28	fPts[0] = pts[0];
michael@0	29	fPts[1] = pts[1];
michael@0	30	fPts[2] = pts[2];
michael@0	31	}
michael@0	32
michael@0	33	const SkDPoint& operator[](int n) const { SkASSERT(n >= 0 && n < 3); return fPts[n]; }
michael@0	34	SkDPoint& operator[](int n) { SkASSERT(n >= 0 && n < 3); return fPts[n]; }
michael@0	35
michael@0	36	static int AddValidTs(double s[], int realRoots, double* t);
michael@0	37	void align(int endIndex, SkDPoint* dstPt) const;
michael@0	38	SkDQuadPair chopAt(double t) const;
michael@0	39	SkDVector dxdyAtT(double t) const;
michael@0	40	static int FindExtrema(double a, double b, double c, double tValue[1]);
michael@0	41	bool isLinear(int startIndex, int endIndex) const;
michael@0	42	bool monotonicInY() const;
michael@0	43	double nearestT(const SkDPoint&) const;
michael@0	44	bool pointInHull(const SkDPoint&) const;
michael@0	45	SkDPoint ptAtT(double t) const;
michael@0	46	static int RootsReal(double A, double B, double C, double t[2]);
michael@0	47	static int RootsValidT(const double A, const double B, const double C, double s[2]);
michael@0	48	static void SetABC(const double* quad, double* a, double* b, double* c);
michael@0	49	SkDQuad subDivide(double t1, double t2) const;
michael@0	50	static SkDQuad SubDivide(const SkPoint a[3], double t1, double t2) {
michael@0	51	SkDQuad quad;
michael@0	52	quad.set(a);
michael@0	53	return quad.subDivide(t1, t2);
michael@0	54	}
michael@0	55	SkDPoint subDivide(const SkDPoint& a, const SkDPoint& c, double t1, double t2) const;
michael@0	56	static SkDPoint SubDivide(const SkPoint pts[3], const SkDPoint& a, const SkDPoint& c,
michael@0	57	double t1, double t2) {
michael@0	58	SkDQuad quad;
michael@0	59	quad.set(pts);
michael@0	60	return quad.subDivide(a, c, t1, t2);
michael@0	61	}
michael@0	62	SkDCubic toCubic() const;
michael@0	63	SkDPoint top(double startT, double endT) const;
michael@0	64
michael@0	65	#ifdef SK_DEBUG
michael@0	66	void dump();
michael@0	67	#endif
michael@0	68	private:
michael@0	69	// static double Tangent(const double* quadratic, double t); // uncalled
michael@0	70	};
michael@0	71
michael@0	72	#endif