Coverage Report

Created: 2024-05-20 07:14

/src/skia/fuzz/oss_fuzz/FuzzRegionDeserialize.cpp
Line
Count
Source (jump to first uncovered line)
1
/*
2
 * Copyright 2018 Google Inc.
3
 *
4
 * Use of this source code is governed by a BSD-style license that can be
5
 * found in the LICENSE file.
6
 */
7
8
9
#include "include/core/SkCanvas.h"
10
#include "include/core/SkPaint.h"
11
#include "include/core/SkSurface.h"
12
#include "src/core/SkRegionPriv.h"
13
14
1.47k
bool FuzzRegionDeserialize(const uint8_t *data, size_t size) {
15
1.47k
    SkRegion region;
16
1.47k
    if (!region.readFromMemory(data, size)) {
17
963
        return false;
18
963
    }
19
507
    region.computeRegionComplexity();
20
507
    region.isComplex();
21
507
    SkRegion r2;
22
507
    if (region == r2) {
23
2
        region.contains(0,0);
24
505
    } else {
25
505
        region.contains(1,1);
26
505
    }
27
507
    auto s = SkSurfaces::Raster(SkImageInfo::MakeN32Premul(128, 128));
28
507
    if (!s) {
29
        // May return nullptr in memory-constrained fuzzing environments
30
0
        return false;
31
0
    }
32
507
    s->getCanvas()->drawRegion(region, SkPaint());
33
507
    SkDEBUGCODE(SkRegionPriv::Validate(region));
34
507
    return true;
35
507
}
36
37
#if defined(SK_BUILD_FOR_LIBFUZZER)
38
190k
extern "C" int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
39
190k
    if (size > 512) {
40
220
        return 0;
41
220
    }
42
190k
    FuzzRegionDeserialize(data, size);
43
190k
    return 0;
44
190k
}
45
#endif