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Side by Side Diff: unit_test/unit_test.h

Issue 1662453003: fix for ubsan on unittest.h fastrand() (Closed) Base URL: https://chromium.googlesource.com/libyuv/libyuv@master
Patch Set: Created 4 years, 10 months ago
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1 /* 1 /*
2 * Copyright 2011 The LibYuv Project Authors. All rights reserved. 2 * Copyright 2011 The LibYuv Project Authors. All rights reserved.
3 * 3 *
4 * Use of this source code is governed by a BSD-style license 4 * Use of this source code is governed by a BSD-style license
5 * that can be found in the LICENSE file in the root of the source 5 * that can be found in the LICENSE file in the root of the source
6 * tree. An additional intellectual property rights grant can be found 6 * tree. An additional intellectual property rights grant can be found
7 * in the file PATENTS. All contributing project authors may 7 * in the file PATENTS. All contributing project authors may
8 * be found in the AUTHORS file in the root of the source tree. 8 * be found in the AUTHORS file in the root of the source tree.
9 */ 9 */
10 10
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48 } 48 }
49 #else 49 #else
50 static inline double get_time() { 50 static inline double get_time() {
51 struct timeval t; 51 struct timeval t;
52 struct timezone tzp; 52 struct timezone tzp;
53 gettimeofday(&t, &tzp); 53 gettimeofday(&t, &tzp);
54 return t.tv_sec + t.tv_usec * 1e-6; 54 return t.tv_sec + t.tv_usec * 1e-6;
55 } 55 }
56 #endif 56 #endif
57 57
58 extern int fastrand_seed; 58 extern int fastrand_seed;
pbos-webrtc 2016/02/02 21:11:47 Just use an unsigned int, then fastrand_seed >> 16
fbarchard1 2016/02/02 22:23:33 Done.
59 inline int fastrand() { 59 inline int fastrand() {
60 fastrand_seed = fastrand_seed * 214013 + 2531011; 60 fastrand_seed = static_cast<int>(
61 static_cast<unsigned int>(fastrand_seed) * 214013u + 2531011u);
61 return (fastrand_seed >> 16) & 0xffff; 62 return (fastrand_seed >> 16) & 0xffff;
62 } 63 }
63 64
64 static inline void MemRandomize(uint8* dst, int64 len) { 65 static inline void MemRandomize(uint8* dst, int64 len) {
65 int64 i; 66 int64 i;
66 for (i = 0; i < len - 1; i += 2) { 67 for (i = 0; i < len - 1; i += 2) {
67 *reinterpret_cast<uint16*>(dst) = fastrand(); 68 *reinterpret_cast<uint16*>(dst) = fastrand();
68 dst += 2; 69 dst += 2;
69 } 70 }
70 for (; i < len; ++i) { 71 for (; i < len; ++i) {
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144 int benchmark_iterations_; // Default 1. Use 1000 for benchmarking. 145 int benchmark_iterations_; // Default 1. Use 1000 for benchmarking.
145 int benchmark_width_; // Default 1280. Use 640 for benchmarking VGA. 146 int benchmark_width_; // Default 1280. Use 640 for benchmarking VGA.
146 int benchmark_height_; // Default 720. Use 360 for benchmarking VGA. 147 int benchmark_height_; // Default 720. Use 360 for benchmarking VGA.
147 int benchmark_pixels_div256_; // Total pixels to benchmark / 256. 148 int benchmark_pixels_div256_; // Total pixels to benchmark / 256.
148 int benchmark_pixels_div1280_; // Total pixels to benchmark / 1280. 149 int benchmark_pixels_div1280_; // Total pixels to benchmark / 1280.
149 int disable_cpu_flags_; // Default 1. Use -1 for benchmarking. 150 int disable_cpu_flags_; // Default 1. Use -1 for benchmarking.
150 int benchmark_cpu_info_; // Default -1. Use 1 to disable SIMD. 151 int benchmark_cpu_info_; // Default -1. Use 1 to disable SIMD.
151 }; 152 };
152 153
153 #endif // UNIT_TEST_UNIT_TEST_H_ NOLINT 154 #endif // UNIT_TEST_UNIT_TEST_H_ NOLINT
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