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1 /* | 1 /* |
2 * Copyright 2016 Google Inc. | 2 * Copyright 2016 Google Inc. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
6 */ | 6 */ |
7 | 7 |
8 #ifndef Fuzz_DEFINED | 8 #ifndef Fuzz_DEFINED |
9 #define Fuzz_DEFINED | 9 #define Fuzz_DEFINED |
10 | 10 |
11 #include "SkData.h" | 11 #include "SkData.h" |
12 #include "SkTRegistry.h" | 12 #include "SkTRegistry.h" |
13 #include "SkTypes.h" | 13 #include "SkTypes.h" |
14 | 14 |
15 class Fuzz : SkNoncopyable { | 15 class Fuzz : SkNoncopyable { |
16 public: | 16 public: |
17 explicit Fuzz(SkData*); | 17 explicit Fuzz(SkData*); |
18 | 18 |
| 19 bool nextBool(); |
19 uint8_t nextB(); | 20 uint8_t nextB(); |
20 uint32_t nextU(); | 21 uint32_t nextU(); |
| 22 // This can be nan, +- infinity, 0, anything. |
21 float nextF(); | 23 float nextF(); |
22 | 24 |
| 25 // Return the next fuzzed value [min, max) as an unsigned 32bit integer. |
| 26 uint32_t nextRangeU(uint32_t min, uint32_t max); |
| 27 /** |
| 28 * Returns next fuzzed value [min...max) as a float. |
| 29 * Will not be Infinity or NaN. |
| 30 */ |
| 31 float nextRangeF(float min, float max); |
| 32 |
23 void signalBug (); // Tell afl-fuzz these inputs found a bug. | 33 void signalBug (); // Tell afl-fuzz these inputs found a bug. |
24 void signalBoring(); // Tell afl-fuzz these inputs are not worth testing. | 34 void signalBoring(); // Tell afl-fuzz these inputs are not worth testing. |
25 | 35 |
26 private: | 36 private: |
27 template <typename T> | 37 template <typename T> |
28 T nextT(); | 38 T nextT(); |
29 | 39 |
30 SkAutoTUnref<SkData> fBytes; | 40 SkAutoTUnref<SkData> fBytes; |
31 int fNextByte; | 41 int fNextByte; |
32 }; | 42 }; |
33 | 43 |
34 struct Fuzzable { | 44 struct Fuzzable { |
35 const char* name; | 45 const char* name; |
36 void (*fn)(Fuzz*); | 46 void (*fn)(Fuzz*); |
37 }; | 47 }; |
38 | 48 |
39 #define DEF_FUZZ(name, f) \ | 49 #define DEF_FUZZ(name, f) \ |
40 static void fuzz_##name(Fuzz*); \ | 50 static void fuzz_##name(Fuzz*); \ |
41 SkTRegistry<Fuzzable> register_##name({#name, fuzz_##name}); \ | 51 SkTRegistry<Fuzzable> register_##name({#name, fuzz_##name}); \ |
42 static void fuzz_##name(Fuzz* f) | 52 static void fuzz_##name(Fuzz* f) |
43 | 53 |
44 #endif//Fuzz_DEFINED | 54 #endif//Fuzz_DEFINED |
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