gfx/skia/trunk/src/core/SkQuadClipper.h@129ffea94266
gfx/skia/trunk/src/core/SkQuadClipper.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.
2 /*
3 * Copyright 2009 The Android Open Source Project
4 *
5 * Use of this source code is governed by a BSD-style license that can be
6 * found in the LICENSE file.
7 */
10 #ifndef SkQuadClipper_DEFINED
11 #define SkQuadClipper_DEFINED
13 #include "SkPath.h"
15 /** This class is initialized with a clip rectangle, and then can be fed quads,
16 which must already be monotonic in Y.
18 In the future, it might return a series of segments, allowing it to clip
19 also in X, to ensure that all segments fit in a finite coordinate system.
20 */
21 class SkQuadClipper {
22 public:
23 SkQuadClipper();
25 void setClip(const SkIRect& clip);
27 bool clipQuad(const SkPoint src[3], SkPoint dst[3]);
29 private:
30 SkRect fClip;
31 };
33 /** Iterator that returns the clipped segements of a quad clipped to a rect.
34 The segments will be either lines or quads (based on SkPath::Verb), and
35 will all be monotonic in Y
36 */
37 class SkQuadClipper2 {
38 public:
39 bool clipQuad(const SkPoint pts[3], const SkRect& clip);
40 bool clipCubic(const SkPoint pts[4], const SkRect& clip);
42 SkPath::Verb next(SkPoint pts[]);
44 private:
45 SkPoint* fCurrPoint;
46 SkPath::Verb* fCurrVerb;
48 enum {
49 kMaxVerbs = 13,
50 kMaxPoints = 32
51 };
52 SkPoint fPoints[kMaxPoints];
53 SkPath::Verb fVerbs[kMaxVerbs];
55 void clipMonoQuad(const SkPoint srcPts[3], const SkRect& clip);
56 void clipMonoCubic(const SkPoint srcPts[4], const SkRect& clip);
57 void appendVLine(SkScalar x, SkScalar y0, SkScalar y1, bool reverse);
58 void appendQuad(const SkPoint pts[3], bool reverse);
59 void appendCubic(const SkPoint pts[4], bool reverse);
60 };
62 #ifdef SK_DEBUG
63 void sk_assert_monotonic_x(const SkPoint pts[], int count);
64 void sk_assert_monotonic_y(const SkPoint pts[], int count);
65 #else
66 #define sk_assert_monotonic_x(pts, count)
67 #define sk_assert_monotonic_y(pts, count)
68 #endif
70 #endif
