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, radius2, width;
20 fuzz->next(&radius1, &radius2, &width);
21
22 if (!std::isfinite(radius1) ||
23 !std::isfinite(radius2) ||
24 !std::isfinite(width) ||
25 radius1 <= 0.0f ||
26 radius2 <= 0.0f ||
27 width <= 0.0f)
28 {
29 return;
30 }
31
32 double scale = (double)width / ((double)radius1 + (double)radius2);
33 if (scale >= 1.0 || scale <= 0.0) {
34 return;
35 }
36 SkDebugf("%g %g %g %g\n", radius1, radius2, width, scale);
37 SkScaleToSides::AdjustRadii(width, scale, &radius1, &radius2);
38
39 // TODO(mtklein): add fuzz->keepResult()
40 volatile float junk = 0.0f;
41 junk *= radius1;
42 junk *= radius2;
43 }
44