1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
|
/*
* Copyright 2012 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SkOpEdgeBuilder_DEFINED
#define SkOpEdgeBuilder_DEFINED
#include "SkOpContour.h"
#include "SkPathWriter.h"
class SkOpEdgeBuilder {
public:
SkOpEdgeBuilder(const SkPathWriter& path, SkOpContourHead* contours2,
SkOpGlobalState* globalState)
: fGlobalState(globalState)
, fPath(path.nativePath())
, fContourBuilder(contours2)
, fContoursHead(contours2)
, fAllowOpenContours(true) {
init();
}
SkOpEdgeBuilder(const SkPath& path, SkOpContourHead* contours2, SkOpGlobalState* globalState)
: fGlobalState(globalState)
, fPath(&path)
, fContourBuilder(contours2)
, fContoursHead(contours2)
, fAllowOpenContours(false) {
init();
}
void addOperand(const SkPath& path);
void complete() {
fContourBuilder.flush();
SkOpContour* contour = fContourBuilder.contour();
if (contour && contour->count()) {
contour->complete();
fContourBuilder.setContour(nullptr);
}
}
bool finish();
const SkOpContour* head() const {
return fContoursHead;
}
void init();
bool unparseable() const { return fUnparseable; }
SkPathOpsMask xorMask() const { return fXorMask[fOperand]; }
private:
void closeContour(const SkPoint& curveEnd, const SkPoint& curveStart);
bool close();
int preFetch();
bool walk();
SkOpGlobalState* fGlobalState;
const SkPath* fPath;
SkTDArray<SkPoint> fPathPts;
SkTDArray<SkScalar> fWeights;
SkTDArray<uint8_t> fPathVerbs;
SkOpContourBuilder fContourBuilder;
SkOpContourHead* fContoursHead;
SkPathOpsMask fXorMask[2];
int fSecondHalf;
bool fOperand;
bool fAllowOpenContours;
bool fUnparseable;
};
#endif
|
