yusukes@chromium.org | d257d18 | 2009-11-04 04:56:32 +0000 | [diff] [blame] | 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 | |
bashi@chromium.org | 54651a6 | 2011-02-18 09:05:42 +0000 | [diff] [blame] | 5 | #if !defined(_WIN32) |
yusukes@chromium.org | 9601aa9 | 2009-12-03 10:25:32 +0000 | [diff] [blame] | 6 | #ifdef __linux__ |
| 7 | // Linux |
| 8 | #include <freetype/ftoutln.h> |
| 9 | #include <ft2build.h> |
| 10 | #include FT_FREETYPE_H |
| 11 | #else |
| 12 | // Mac OS X |
| 13 | #include <ApplicationServices/ApplicationServices.h> // g++ -framework Cocoa |
| 14 | #endif // __linux__ |
bashi@chromium.org | 54651a6 | 2011-02-18 09:05:42 +0000 | [diff] [blame] | 15 | #include <unistd.h> |
yusukes@chromium.org | 9601aa9 | 2009-12-03 10:25:32 +0000 | [diff] [blame] | 16 | #else |
| 17 | // Windows |
bashi@chromium.org | 54651a6 | 2011-02-18 09:05:42 +0000 | [diff] [blame] | 18 | #include <io.h> |
bashi@chromium.org | 8d71e04 | 2012-05-07 08:45:16 +0000 | [diff] [blame] | 19 | #include <Windows.h> |
bashi@chromium.org | 54651a6 | 2011-02-18 09:05:42 +0000 | [diff] [blame] | 20 | #endif // !defiend(_WIN32) |
yusukes@chromium.org | 9601aa9 | 2009-12-03 10:25:32 +0000 | [diff] [blame] | 21 | |
yusukes@chromium.org | d257d18 | 2009-11-04 04:56:32 +0000 | [diff] [blame] | 22 | #include <fcntl.h> |
| 23 | #include <sys/stat.h> |
yusukes@chromium.org | d257d18 | 2009-11-04 04:56:32 +0000 | [diff] [blame] | 24 | |
| 25 | #include <cstdio> |
| 26 | #include <cstdlib> |
| 27 | #include <cstring> |
| 28 | |
| 29 | #include "opentype-sanitiser.h" |
| 30 | #include "ots-memory-stream.h" |
| 31 | |
| 32 | namespace { |
| 33 | |
| 34 | int Usage(const char *argv0) { |
| 35 | std::fprintf(stderr, "Usage: %s <ttf file>\n", argv0); |
| 36 | return 1; |
| 37 | } |
| 38 | |
bashi@chromium.org | 54651a6 | 2011-02-18 09:05:42 +0000 | [diff] [blame] | 39 | bool ReadFile(const char *file_name, uint8_t **data, size_t *file_size); |
| 40 | bool DumpResults(const uint8_t *result1, const size_t len1, |
| 41 | const uint8_t *result2, const size_t len2); |
| 42 | |
| 43 | #if defined(_WIN32) |
| 44 | #define ADDITIONAL_OPEN_FLAGS O_BINARY |
| 45 | #else |
| 46 | #define ADDITIONAL_OPEN_FLAGS 0 |
| 47 | #endif |
| 48 | |
| 49 | bool ReadFile(const char *file_name, uint8_t **data, size_t *file_size) { |
| 50 | const int fd = open(file_name, O_RDONLY | ADDITIONAL_OPEN_FLAGS); |
| 51 | if (fd < 0) { |
| 52 | return false; |
| 53 | } |
| 54 | |
| 55 | struct stat st; |
| 56 | fstat(fd, &st); |
| 57 | |
| 58 | *file_size = st.st_size; |
| 59 | *data = new uint8_t[st.st_size]; |
| 60 | if (read(fd, *data, st.st_size) != st.st_size) { |
| 61 | close(fd); |
| 62 | return false; |
| 63 | } |
| 64 | close(fd); |
| 65 | return true; |
| 66 | } |
| 67 | |
| 68 | bool DumpResults(const uint8_t *result1, const size_t len1, |
| 69 | const uint8_t *result2, const size_t len2) { |
| 70 | int fd1 = open("out1.ttf", |
| 71 | O_WRONLY | O_CREAT | O_TRUNC | ADDITIONAL_OPEN_FLAGS, 0600); |
| 72 | int fd2 = open("out2.ttf", |
| 73 | O_WRONLY | O_CREAT | O_TRUNC | ADDITIONAL_OPEN_FLAGS, 0600); |
| 74 | if (fd1 < 0 || fd2 < 0) { |
| 75 | perror("opening output file"); |
| 76 | return false; |
| 77 | } |
| 78 | if ((write(fd1, result1, len1) < 0) || |
| 79 | (write(fd2, result2, len2) < 0)) { |
| 80 | perror("writing output file"); |
| 81 | close(fd1); |
| 82 | close(fd2); |
| 83 | return false; |
| 84 | } |
| 85 | close(fd1); |
| 86 | close(fd2); |
| 87 | return true; |
| 88 | } |
| 89 | |
| 90 | // Platform specific implementations. |
| 91 | bool VerifyTranscodedFont(uint8_t *result, const size_t len); |
| 92 | |
| 93 | #if defined(__linux__) |
| 94 | // Linux |
| 95 | bool VerifyTranscodedFont(uint8_t *result, const size_t len) { |
| 96 | FT_Library library; |
| 97 | FT_Error error = ::FT_Init_FreeType(&library); |
| 98 | if (error) { |
| 99 | return false; |
| 100 | } |
| 101 | FT_Face dummy; |
| 102 | error = ::FT_New_Memory_Face(library, result, len, 0, &dummy); |
| 103 | if (error) { |
| 104 | return false; |
| 105 | } |
| 106 | ::FT_Done_Face(dummy); |
| 107 | return true; |
| 108 | } |
| 109 | |
| 110 | #elif defined(__APPLE_CC__) |
| 111 | // Mac |
| 112 | bool VerifyTranscodedFont(uint8_t *result, const size_t len) { |
ksakamoto@chromium.org | 2e1bb35 | 2013-04-03 08:32:41 +0000 | [diff] [blame] | 113 | CFDataRef data = CFDataCreate(0, result, len); |
| 114 | if (!data) { |
bashi@chromium.org | 54651a6 | 2011-02-18 09:05:42 +0000 | [diff] [blame] | 115 | return false; |
| 116 | } |
| 117 | |
ksakamoto@chromium.org | 2e1bb35 | 2013-04-03 08:32:41 +0000 | [diff] [blame] | 118 | CGDataProviderRef dataProvider = CGDataProviderCreateWithCFData(data); |
| 119 | CGFontRef cgFontRef = CGFontCreateWithDataProvider(dataProvider); |
| 120 | CGDataProviderRelease(dataProvider); |
| 121 | CFRelease(data); |
| 122 | if (!cgFontRef) { |
bashi@chromium.org | 54651a6 | 2011-02-18 09:05:42 +0000 | [diff] [blame] | 123 | return false; |
| 124 | } |
| 125 | |
ksakamoto@chromium.org | 2e1bb35 | 2013-04-03 08:32:41 +0000 | [diff] [blame] | 126 | size_t numGlyphs = CGFontGetNumberOfGlyphs(cgFontRef); |
| 127 | CGFontRelease(cgFontRef); |
| 128 | if (!numGlyphs) { |
bashi@chromium.org | 54651a6 | 2011-02-18 09:05:42 +0000 | [diff] [blame] | 129 | return false; |
| 130 | } |
| 131 | return true; |
| 132 | } |
| 133 | |
| 134 | #elif defined(_WIN32) |
| 135 | // Windows |
| 136 | bool VerifyTranscodedFont(uint8_t *result, const size_t len) { |
| 137 | DWORD num_fonts = 0; |
| 138 | HANDLE handle = AddFontMemResourceEx(result, len, 0, &num_fonts); |
| 139 | if (!handle) { |
| 140 | return false; |
| 141 | } |
| 142 | RemoveFontMemResourceEx(handle); |
| 143 | return true; |
| 144 | } |
| 145 | |
| 146 | #else |
| 147 | bool VerifyTranscodedFont(uint8_t *result, const size_t len) { |
| 148 | std::fprintf(stderr, "Can't verify the transcoded font on this platform.\n"); |
| 149 | return false; |
| 150 | } |
| 151 | |
| 152 | #endif |
| 153 | |
yusukes@chromium.org | d257d18 | 2009-11-04 04:56:32 +0000 | [diff] [blame] | 154 | } // namespace |
| 155 | |
| 156 | int main(int argc, char **argv) { |
| 157 | if (argc != 2) return Usage(argv[0]); |
| 158 | |
bashi@chromium.org | 54651a6 | 2011-02-18 09:05:42 +0000 | [diff] [blame] | 159 | size_t file_size = 0; |
| 160 | uint8_t *data = 0; |
| 161 | if (!ReadFile(argv[1], &data, &file_size)) { |
yusukes@chromium.org | d257d18 | 2009-11-04 04:56:32 +0000 | [diff] [blame] | 162 | std::fprintf(stderr, "Failed to read file!\n"); |
| 163 | return 1; |
| 164 | } |
yusukes@chromium.org | d257d18 | 2009-11-04 04:56:32 +0000 | [diff] [blame] | 165 | |
| 166 | // A transcoded font is usually smaller than an original font. |
| 167 | // However, it can be slightly bigger than the original one due to |
| 168 | // name table replacement and/or padding for glyf table. |
agl@chromium.org | 5089f9c | 2010-04-28 21:23:06 +0000 | [diff] [blame] | 169 | // |
| 170 | // However, a WOFF font gets decompressed and so can be *much* larger than |
| 171 | // the original. |
bashi@chromium.org | 54651a6 | 2011-02-18 09:05:42 +0000 | [diff] [blame] | 172 | uint8_t *result = new uint8_t[file_size * 8]; |
| 173 | ots::MemoryStream output(result, file_size * 8); |
yusukes@chromium.org | d257d18 | 2009-11-04 04:56:32 +0000 | [diff] [blame] | 174 | |
bashi@chromium.org | 54651a6 | 2011-02-18 09:05:42 +0000 | [diff] [blame] | 175 | bool r = ots::Process(&output, data, file_size); |
yusukes@chromium.org | d257d18 | 2009-11-04 04:56:32 +0000 | [diff] [blame] | 176 | if (!r) { |
| 177 | std::fprintf(stderr, "Failed to sanitise file!\n"); |
| 178 | return 1; |
| 179 | } |
| 180 | const size_t result_len = output.Tell(); |
yusukes@chromium.org | a90c583 | 2010-07-15 06:02:28 +0000 | [diff] [blame] | 181 | delete[] data; |
yusukes@chromium.org | d257d18 | 2009-11-04 04:56:32 +0000 | [diff] [blame] | 182 | |
| 183 | uint8_t *result2 = new uint8_t[result_len]; |
| 184 | ots::MemoryStream output2(result2, result_len); |
| 185 | r = ots::Process(&output2, result, result_len); |
| 186 | if (!r) { |
| 187 | std::fprintf(stderr, "Failed to sanitise previous output!\n"); |
| 188 | return 1; |
| 189 | } |
| 190 | const size_t result2_len = output2.Tell(); |
| 191 | |
| 192 | bool dump_results = false; |
| 193 | if (result2_len != result_len) { |
| 194 | std::fprintf(stderr, "Outputs differ in length\n"); |
| 195 | dump_results = true; |
| 196 | } else if (std::memcmp(result2, result, result_len)) { |
| 197 | std::fprintf(stderr, "Outputs differ in content\n"); |
| 198 | dump_results = true; |
| 199 | } |
| 200 | |
| 201 | if (dump_results) { |
| 202 | std::fprintf(stderr, "Dumping results to out1.tff and out2.tff\n"); |
bashi@chromium.org | 54651a6 | 2011-02-18 09:05:42 +0000 | [diff] [blame] | 203 | if (!DumpResults(result, result_len, result2, result2_len)) { |
| 204 | std::fprintf(stderr, "Failed to dump output files.\n"); |
yusukes@chromium.org | d257d18 | 2009-11-04 04:56:32 +0000 | [diff] [blame] | 205 | return 1; |
| 206 | } |
| 207 | } |
| 208 | |
yusukes@chromium.org | 9601aa9 | 2009-12-03 10:25:32 +0000 | [diff] [blame] | 209 | // Verify that the transcoded font can be opened by the font renderer for |
| 210 | // Linux (FreeType2), Mac OS X, or Windows. |
bashi@chromium.org | 54651a6 | 2011-02-18 09:05:42 +0000 | [diff] [blame] | 211 | if (!VerifyTranscodedFont(result, result_len)) { |
| 212 | std::fprintf(stderr, "Failed to verify the transcoded font\n"); |
yusukes@chromium.org | 9601aa9 | 2009-12-03 10:25:32 +0000 | [diff] [blame] | 213 | return 1; |
| 214 | } |
yusukes@chromium.org | 9601aa9 | 2009-12-03 10:25:32 +0000 | [diff] [blame] | 215 | |
yusukes@chromium.org | d257d18 | 2009-11-04 04:56:32 +0000 | [diff] [blame] | 216 | return 0; |
| 217 | } |