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
|
// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <stddef.h>
#include <stdint.h>
#include "testing/libfuzzer/fuzzers/skia_path_common.h"
#include "third_party/skia/include/core/SkCanvas.h"
#include "third_party/skia/include/core/SkPaint.h"
#include "third_party/skia/include/core/SkPath.h"
#include "third_party/skia/include/core/SkPathUtils.h"
#include "third_party/skia/include/core/SkSurface.h"
extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
uint8_t w, h, anti_alias;
if (!read<uint8_t>(&data, &size, &w))
return 0;
if (!read<uint8_t>(&data, &size, &h))
return 0;
if (!read<uint8_t>(&data, &size, &anti_alias))
return 0;
SkScalar a, b, c, d;
if (!read<SkScalar>(&data, &size, &a))
return 0;
if (!read<SkScalar>(&data, &size, &b))
return 0;
if (!read<SkScalar>(&data, &size, &c))
return 0;
if (!read<SkScalar>(&data, &size, &d))
return 0;
// In this case, we specifically don't want to include kDone_Verb.
SkPath path;
BuildPath(&data, &size, &path, SkPath::Verb::kClose_Verb);
// Try a few potentially interesting things with our path.
path.contains(a, b);
path.conservativelyContainsRect(SkRect::MakeLTRB(a, b, c, d));
SkPaint paint_fill;
paint_fill.setStyle(SkPaint::Style::kFill_Style);
paint_fill.setAntiAlias(anti_alias & 1);
SkPaint paint_stroke;
paint_stroke.setStyle(SkPaint::Style::kStroke_Style);
paint_stroke.setStrokeWidth(1);
paint_stroke.setAntiAlias(anti_alias & 1);
SkPath dst_path;
skpathutils::FillPathWithPaint(path, paint_stroke, &dst_path, nullptr);
// Width and height should never be 0.
auto surface(
SkSurfaces::Raster(SkImageInfo::MakeN32Premul(w ? w : 1, h ? h : 1)));
surface->getCanvas()->drawPath(path, paint_fill);
surface->getCanvas()->drawPath(path, paint_stroke);
return 0;
}
|
