1 /*
2 * Copyright 2016 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 // Reminder of how to run:
9 // $ env CC=afl-clang CXX=afl-clang++ ./gyp_skia
10 // $ ninja -C out/Debug fuzz
11 // $ afl-fuzz -i fuzz-in -o fuzz-out out/Debug/fuzz -n ScaleToSides -b @@
12 // where you seed fuzz-in/ with one or more small files.
13
14 #include "Fuzz.h"
15 #include "SkScaleToSides.h"
16 #include <cmath>
17
DEF_FUZZ(ScaleToSides,fuzz)18 DEF_FUZZ(ScaleToSides, fuzz) {
19 float radius1 = fuzz->nextF(),
20 radius2 = fuzz->nextF(),
21 width = fuzz->nextF();
22
23 if (!std::isfinite(radius1) ||
24 !std::isfinite(radius2) ||
25 !std::isfinite(width) ||
26 radius1 <= 0.0f ||
27 radius2 <= 0.0f ||
28 width <= 0.0f)
29 {
30 fuzz->signalBoring();
31 }
32
33 double scale = (double)width / ((double)radius1 + (double)radius2);
34 if (scale >= 1.0 || scale <= 0.0) {
35 fuzz->signalBoring();
36 }
37 SkDebugf("%g %g %g %g\n", radius1, radius2, width, scale);
38 SkScaleToSides::AdjustRadii(width, scale, &radius1, &radius2);
39
40 // TODO(mtklein): add fuzz->keepResult()
41 volatile float junk = 0.0f;
42 junk *= radius1;
43 junk *= radius2;
44 }
45