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
|
/*
* Copyright 2018 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkBitmap.h"
#include "SkDashPathEffect.h"
#include "SkPaint.h"
#include "SkPath.h"
#include "gm.h"
// Repro case for skia:7674. Requires lots of RAM to run, and currently triggers UB:
// ../include/private/SkTDArray.h:382:26:
// runtime error: signed integer overflow: 2147483644 + 4 cannot be represented in type 'int'
#if 0
DEF_SIMPLE_GM(PathMeasure_explosion, canvas, 500,500) {
SkPaint p;
p.setAntiAlias(false);
float intervals[] = { 0, 10e9f };
p.setStyle(SkPaint::kStroke_Style);
p.setPathEffect(SkDashPathEffect::Make(intervals, SK_ARRAY_COUNT(intervals), 0));
int quadratic_at[] = {
13, 68, 258, 1053, 1323, 2608, 10018, 15668, 59838, 557493, 696873, 871098, 4153813,
15845608, 48357008, 118059138, 288230353, 360287948, 562949933, 703687423, 1099511613, 0
};
int next_quadratic_at = 0;
SkPath path;
path.moveTo(0, 0);
int i = 1;
for (int points = 1; points < 2147483647; ) {
if (points == quadratic_at[next_quadratic_at]) {
path.quadTo(i, 0, i, 0);
next_quadratic_at++;
points += 2;
} else {
path.lineTo(i, 0);
points += 1;
}
i++;
if (i == 1000000) {
path.moveTo(0, 0);
points += 1;
i = 1;
}
}
canvas->drawPath(path, p);
}
#endif
|
