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Side by Side Diff: fuzz/fuzz.cpp

Issue 2206633004: Move off SK_SUPPORT_LEGACY_DATA_FACTORIES. (Closed) Base URL: https://skia.googlesource.com/skia.git@master
Patch Set: Gotta catch 'em all. Created 4 years, 4 months ago
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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 #include "Fuzz.h" 8 #include "Fuzz.h"
9 #include "SkCanvas.h" 9 #include "SkCanvas.h"
10 #include "SkCodec.h" 10 #include "SkCodec.h"
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37 static int fuzz_api(SkData*); 37 static int fuzz_api(SkData*);
38 static int fuzz_img(SkData*, uint8_t, uint8_t); 38 static int fuzz_img(SkData*, uint8_t, uint8_t);
39 static int fuzz_skp(SkData*); 39 static int fuzz_skp(SkData*);
40 static int fuzz_icc(SkData*); 40 static int fuzz_icc(SkData*);
41 static int fuzz_color_deserialize(SkData*); 41 static int fuzz_color_deserialize(SkData*);
42 42
43 int main(int argc, char** argv) { 43 int main(int argc, char** argv) {
44 SkCommandLineFlags::Parse(argc, argv); 44 SkCommandLineFlags::Parse(argc, argv);
45 45
46 const char* path = FLAGS_bytes.isEmpty() ? argv[0] : FLAGS_bytes[0]; 46 const char* path = FLAGS_bytes.isEmpty() ? argv[0] : FLAGS_bytes[0];
47 SkAutoTUnref<SkData> bytes(SkData::NewFromFileName(path)); 47 sk_sp<SkData> bytes(SkData::MakeFromFileName(path));
48 if (!bytes) { 48 if (!bytes) {
49 SkDebugf("Could not read %s\n", path); 49 SkDebugf("Could not read %s\n", path);
50 return 2; 50 return 2;
51 } 51 }
52 52
53 uint8_t option = calculate_option(bytes); 53 uint8_t option = calculate_option(bytes.get());
54 54
55 if (!FLAGS_type.isEmpty()) { 55 if (!FLAGS_type.isEmpty()) {
56 switch (FLAGS_type[0][0]) { 56 switch (FLAGS_type[0][0]) {
57 case 'a': return fuzz_api(bytes); 57 case 'a': return fuzz_api(bytes.get());
58 58
59 case 'c': return fuzz_color_deserialize(bytes); 59 case 'c': return fuzz_color_deserialize(bytes.get());
60 60
61 case 'i': 61 case 'i':
62 if (FLAGS_type[0][1] == 'c') { //icc 62 if (FLAGS_type[0][1] == 'c') { //icc
63 return fuzz_icc(bytes); 63 return fuzz_icc(bytes.get());
64 } 64 }
65 // We only allow one degree of freedom to avoid a search space e xplosion for afl-fuzz. 65 // We only allow one degree of freedom to avoid a search space e xplosion for afl-fuzz.
66 if (FLAGS_type[0][6] == 's') { // image_scale 66 if (FLAGS_type[0][6] == 's') { // image_scale
67 return fuzz_img(bytes, option, 0); 67 return fuzz_img(bytes.get(), option, 0);
68 } 68 }
69 // image_mode 69 // image_mode
70 return fuzz_img(bytes, 0, option); 70 return fuzz_img(bytes.get(), 0, option);
71 case 's': return fuzz_skp(bytes); 71 case 's': return fuzz_skp(bytes.get());
72 } 72 }
73 } 73 }
74 return printUsage(argv[0]); 74 return printUsage(argv[0]);
75 } 75 }
76 76
77 // This adds up the first 1024 bytes and returns it as an 8 bit integer. This a llows afl-fuzz to 77 // This adds up the first 1024 bytes and returns it as an 8 bit integer. This a llows afl-fuzz to
78 // deterministically excercise different paths, or *options* (such as different scaling sizes or 78 // deterministically excercise different paths, or *options* (such as different scaling sizes or
79 // different image modes) without needing to introduce a parameter. This way we don't need a 79 // different image modes) without needing to introduce a parameter. This way we don't need a
80 // image_scale1, image_scale2, image_scale4, etc fuzzer, we can just have a imag e_scale fuzzer. 80 // image_scale1, image_scale2, image_scale4, etc fuzzer, we can just have a imag e_scale fuzzer.
81 // Clients are expected to transform this number into a different range, e.g. wi th modulo (%). 81 // Clients are expected to transform this number into a different range, e.g. wi th modulo (%).
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452 if (min > max) { 452 if (min > max) {
453 SkDebugf("Check mins and maxes (%f, %f)\n", min, max); 453 SkDebugf("Check mins and maxes (%f, %f)\n", min, max);
454 this->signalBoring(); 454 this->signalBoring();
455 } 455 }
456 float f = std::abs(this->nextF()); 456 float f = std::abs(this->nextF());
457 if (!std::isnormal(f) && f != 0.0) { 457 if (!std::isnormal(f) && f != 0.0) {
458 this->signalBoring(); 458 this->signalBoring();
459 } 459 }
460 return min + fmod(f, (max - min + 1)); 460 return min + fmod(f, (max - min + 1));
461 } 461 }
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