1 // Copyright (c) 2009 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include <fcntl.h> 6 #include <sys/stat.h> 7 #include <sys/time.h> // for timersub macro. 8 #include <unistd.h> 9 #include <time.h> 10 11 #include <cstdio> 12 #include <cstdlib> 13 #include <cstring> 14 15 #include "opentype-sanitiser.h" 16 #include "ots-memory-stream.h" 17 18 namespace { 19 20 int Usage(const char *argv0) { 21 std::fprintf(stderr, "Usage: %s <ttf file>\n", argv0); 22 return 1; 23 } 24 25 } // namespace 26 27 int main(int argc, char **argv) { 28 ots::DisableDebugOutput(); // turn off ERROR and WARNING outputs. 29 30 if (argc != 2) return Usage(argv[0]); 31 32 const int fd = ::open(argv[1], O_RDONLY); 33 if (fd < 0) { 34 ::perror("open"); 35 return 1; 36 } 37 38 struct stat st; 39 ::fstat(fd, &st); 40 41 uint8_t *data = new uint8_t[st.st_size]; 42 if (::read(fd, data, st.st_size) != st.st_size) { 43 std::fprintf(stderr, "Failed to read file!\n"); 44 return 1; 45 } 46 47 // A transcoded font is usually smaller than an original font. 48 // However, it can be slightly bigger than the original one due to 49 // name table replacement and/or padding for glyf table. 50 static const size_t kPadLen = 20 * 1024; 51 uint8_t *result = new uint8_t[st.st_size + kPadLen]; 52 53 int num_repeat = 250; 54 if (st.st_size < 1024 * 1024) { 55 num_repeat = 2500; 56 } 57 if (st.st_size < 1024 * 100) { 58 num_repeat = 5000; 59 } 60 61 struct timeval start, end, elapsed; 62 ::gettimeofday(&start, 0); 63 for (int i = 0; i < num_repeat; ++i) { 64 ots::MemoryStream output(result, st.st_size + kPadLen); 65 bool r = ots::Process(&output, data, st.st_size); 66 if (!r) { 67 std::fprintf(stderr, "Failed to sanitise file!\n"); 68 return 1; 69 } 70 } 71 ::gettimeofday(&end, 0); 72 timersub(&end, &start, &elapsed); 73 74 long long unsigned us 75 = ((elapsed.tv_sec * 1000 * 1000) + elapsed.tv_usec) / num_repeat; 76 std::fprintf(stderr, "%llu [us] %s (%llu bytes, %llu [byte/us])\n", 77 us, argv[1], static_cast<long long>(st.st_size), 78 (us ? st.st_size / us : 0)); 79 80 return 0; 81 } 82
