1d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org// Copyright (c) 2009 The Chromium Authors. All rights reserved. 2d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org// Use of this source code is governed by a BSD-style license that can be 3d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org// found in the LICENSE file. 4d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org 5d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org#include "os2.h" 6d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org 7d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org#include "head.h" 8d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org 9d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org// OS/2 - OS/2 and Windows Metrics 10d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org// http://www.microsoft.com/opentype/otspec/os2.htm 11d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org 12d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.orgnamespace ots { 13d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org 14d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.orgbool ots_os2_parse(OpenTypeFile *file, const uint8_t *data, size_t length) { 15d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org Buffer table(data, length); 16d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org 17d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org OpenTypeOS2 *os2 = new OpenTypeOS2; 18d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org file->os2 = os2; 19d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org 20d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org if (!table.ReadU16(&os2->version) || 21d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org !table.ReadS16(&os2->avg_char_width) || 22d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org !table.ReadU16(&os2->weight_class) || 23d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org !table.ReadU16(&os2->width_class) || 24d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org !table.ReadU16(&os2->type) || 25d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org !table.ReadS16(&os2->subscript_x_size) || 26d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org !table.ReadS16(&os2->subscript_y_size) || 27d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org !table.ReadS16(&os2->subscript_x_offset) || 28d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org !table.ReadS16(&os2->subscript_y_offset) || 29d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org !table.ReadS16(&os2->superscript_x_size) || 30d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org !table.ReadS16(&os2->superscript_y_size) || 31d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org !table.ReadS16(&os2->superscript_x_offset) || 32d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org !table.ReadS16(&os2->superscript_y_offset) || 33d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org !table.ReadS16(&os2->strikeout_size) || 34d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org !table.ReadS16(&os2->strikeout_position) || 35d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org !table.ReadS16(&os2->family_class)) { 36d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org return OTS_FAILURE(); 37d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org } 38d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org 39d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org if (os2->version > 4) { 40d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org return OTS_FAILURE(); 41d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org } 42d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org 43d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org // Some linux fonts (e.g., Kedage-t.ttf and LucidaSansDemiOblique.ttf) have 44d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org // weird weight/width classes. Overwrite them with FW_NORMAL/1/9. 45d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org if (os2->weight_class < 100 || 46d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org os2->weight_class > 900 || 47d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org os2->weight_class % 100) { 48d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org OTS_WARNING("bad weight: %u", os2->weight_class); 49d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org os2->weight_class = 400; // FW_NORMAL 50d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org } 51d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org if (os2->width_class < 1) { 52d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org OTS_WARNING("bad width: %u", os2->width_class); 53d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org os2->width_class = 1; 54d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org } else if (os2->width_class > 9) { 55d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org OTS_WARNING("bad width: %u", os2->width_class); 56d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org os2->width_class = 9; 57d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org } 58d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org 59d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org // lowest 3 bits of fsType are exclusive. 60d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org if (os2->type & 0x2) { 61d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org // mask bits 2 & 3. 62d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org os2->type &= 0xfff3u; 63d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org } else if (os2->type & 0x4) { 64d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org // mask bits 1 & 3. 65d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org os2->type &= 0xfff4u; 66d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org } else if (os2->type & 0x8) { 67d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org // mask bits 1 & 2. 68d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org os2->type &= 0xfff9u; 69d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org } 70d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org 71d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org // mask reserved bits. use only 0..3, 8, 9 bits. 72d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org os2->type &= 0x30f; 73d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org 74d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org if (os2->subscript_x_size < 0) { 75d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org OTS_WARNING("bad subscript_x_size: %d", os2->subscript_x_size); 76d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org os2->subscript_x_size = 0; 77d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org } 78d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org if (os2->subscript_y_size < 0) { 79d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org OTS_WARNING("bad subscript_y_size: %d", os2->subscript_y_size); 80d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org os2->subscript_y_size = 0; 81d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org } 82d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org if (os2->superscript_x_size < 0) { 83d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org OTS_WARNING("bad superscript_x_size: %d", os2->superscript_x_size); 84d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org os2->superscript_x_size = 0; 85d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org } 86d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org if (os2->superscript_y_size < 0) { 87d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org OTS_WARNING("bad superscript_y_size: %d", os2->superscript_y_size); 88d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org os2->superscript_y_size = 0; 89d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org } 90d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org if (os2->strikeout_size < 0) { 91d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org OTS_WARNING("bad strikeout_size: %d", os2->strikeout_size); 92d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org os2->strikeout_size = 0; 93d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org } 94d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org 95d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org for (unsigned i = 0; i < 10; ++i) { 96d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org if (!table.ReadU8(&os2->panose[i])) { 97d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org return OTS_FAILURE(); 98d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org } 99d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org } 100d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org 101d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org if (!table.ReadU32(&os2->unicode_range_1) || 102d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org !table.ReadU32(&os2->unicode_range_2) || 103d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org !table.ReadU32(&os2->unicode_range_3) || 104d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org !table.ReadU32(&os2->unicode_range_4) || 105d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org !table.ReadU32(&os2->vendor_id) || 106d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org !table.ReadU16(&os2->selection) || 107d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org !table.ReadU16(&os2->first_char_index) || 108d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org !table.ReadU16(&os2->last_char_index) || 109d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org !table.ReadS16(&os2->typo_ascender) || 110d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org !table.ReadS16(&os2->typo_descender) || 111d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org !table.ReadS16(&os2->typo_linegap) || 112d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org !table.ReadU16(&os2->win_ascent) || 113d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org !table.ReadU16(&os2->win_descent)) { 114d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org return OTS_FAILURE(); 115d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org } 116d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org 117d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org // If bit 6 is set, then bits 0 and 5 must be clear. 118d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org if (os2->selection & 0x40) { 119d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org os2->selection &= 0xffdeu; 120d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org } 121d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org 122d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org // the settings of bits 0 and 1 must be reflected in the macStyle bits 123d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org // in the 'head' table. 124d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org if (!file->head) { 125d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org return OTS_FAILURE(); 126d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org } 127d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org if ((os2->selection & 0x1) && 128d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org !(file->head->mac_style & 0x2)) { 129d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org OTS_WARNING("adjusting Mac style (italic)"); 130d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org file->head->mac_style |= 0x2; 131d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org } 132d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org if ((os2->selection & 0x2) && 133d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org !(file->head->mac_style & 0x4)) { 134d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org OTS_WARNING("adjusting Mac style (underscore)"); 135d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org file->head->mac_style |= 0x4; 136d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org } 137d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org 138d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org // While bit 6 on implies that bits 0 and 1 of macStyle are clear, 139d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org // the reverse is not true. 140d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org if ((os2->selection & 0x40) && 141d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org (file->head->mac_style & 0x3)) { 142d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org OTS_WARNING("adjusting Mac style (regular)"); 143d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org file->head->mac_style &= 0xfffcu; 144d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org } 145d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org 146d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org if ((os2->version < 4) && 147d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org (os2->selection & 0x300)) { 148d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org // bit 8 and 9 must be unset in OS/2 table versions less than 4. 149d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org return OTS_FAILURE(); 150d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org } 151d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org 152d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org // mask reserved bits. use only 0..9 bits. 153d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org os2->selection &= 0x3ff; 154d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org 155d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org if (os2->first_char_index > os2->last_char_index) { 156d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org return OTS_FAILURE(); 157d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org } 158d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org if (os2->typo_linegap < 0) { 159d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org OTS_WARNING("bad linegap: %d", os2->typo_linegap); 160d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org os2->typo_linegap = 0; 161d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org } 162d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org 163d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org if (os2->version < 1) { 164d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org // http://www.microsoft.com/typography/otspec/os2ver0.htm 165d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org return true; 166d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org } 167d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org 168d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org if (length < offsetof(OpenTypeOS2, code_page_range_2)) { 169d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org OTS_WARNING("bad version number: %u", os2->version); 170d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org // Some fonts (e.g., kredit1.ttf and quinquef.ttf) have weird version 171d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org // numbers. Fix them. 172d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org os2->version = 0; 173d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org return true; 174d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org } 175d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org 176d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org if (!table.ReadU32(&os2->code_page_range_1) || 177d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org !table.ReadU32(&os2->code_page_range_2)) { 178d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org return OTS_FAILURE(); 179d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org } 180d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org 181d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org if (os2->version < 2) { 182d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org // http://www.microsoft.com/typography/otspec/os2ver1.htm 183d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org return true; 184d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org } 185d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org 186d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org if (length < offsetof(OpenTypeOS2, max_context)) { 187d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org OTS_WARNING("bad version number: %u", os2->version); 188d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org // some Japanese fonts (e.g., mona.ttf) have weird version number. 189d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org // fix them. 190d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org os2->version = 1; 191d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org return true; 192d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org } 193d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org 194d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org if (!table.ReadS16(&os2->x_height) || 195d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org !table.ReadS16(&os2->cap_height) || 196d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org !table.ReadU16(&os2->default_char) || 197d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org !table.ReadU16(&os2->break_char) || 198d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org !table.ReadU16(&os2->max_context)) { 199d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org return OTS_FAILURE(); 200d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org } 201d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org 202d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org if (os2->x_height < 0) { 203d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org OTS_WARNING("bad x_height: %d", os2->x_height); 204d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org os2->x_height = 0; 205d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org } 206d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org if (os2->cap_height < 0) { 207d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org OTS_WARNING("bad cap_height: %d", os2->cap_height); 208d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org os2->cap_height = 0; 209d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org } 210d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org 211d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org return true; 212d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org} 213d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org 214d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.orgbool ots_os2_should_serialise(OpenTypeFile *file) { 2152beaf1d97c4ba6d953462003db9ddb104b53d196agl@chromium.org return file->os2 != NULL; 216d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org} 217d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org 218d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.orgbool ots_os2_serialise(OTSStream *out, OpenTypeFile *file) { 219d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org const OpenTypeOS2 *os2 = file->os2; 220d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org 221d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org if (!out->WriteU16(os2->version) || 222d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org !out->WriteS16(os2->avg_char_width) || 223d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org !out->WriteU16(os2->weight_class) || 224d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org !out->WriteU16(os2->width_class) || 225d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org !out->WriteU16(os2->type) || 226d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org !out->WriteS16(os2->subscript_x_size) || 227d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org !out->WriteS16(os2->subscript_y_size) || 228d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org !out->WriteS16(os2->subscript_x_offset) || 229d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org !out->WriteS16(os2->subscript_y_offset) || 230d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org !out->WriteS16(os2->superscript_x_size) || 231d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org !out->WriteS16(os2->superscript_y_size) || 232d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org !out->WriteS16(os2->superscript_x_offset) || 233d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org !out->WriteS16(os2->superscript_y_offset) || 234d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org !out->WriteS16(os2->strikeout_size) || 235d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org !out->WriteS16(os2->strikeout_position) || 236d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org !out->WriteS16(os2->family_class)) { 237d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org return OTS_FAILURE(); 238d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org } 239d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org 240d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org for (unsigned i = 0; i < 10; ++i) { 241d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org if (!out->Write(&os2->panose[i], 1)) { 242d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org return OTS_FAILURE(); 243d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org } 244d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org } 245d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org 246d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org if (!out->WriteU32(os2->unicode_range_1) || 247d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org !out->WriteU32(os2->unicode_range_2) || 248d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org !out->WriteU32(os2->unicode_range_3) || 249d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org !out->WriteU32(os2->unicode_range_4) || 250d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org !out->WriteU32(os2->vendor_id) || 251d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org !out->WriteU16(os2->selection) || 252d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org !out->WriteU16(os2->first_char_index) || 253d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org !out->WriteU16(os2->last_char_index) || 254d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org !out->WriteS16(os2->typo_ascender) || 255d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org !out->WriteS16(os2->typo_descender) || 256d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org !out->WriteS16(os2->typo_linegap) || 257d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org !out->WriteU16(os2->win_ascent) || 258d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org !out->WriteU16(os2->win_descent)) { 259d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org return OTS_FAILURE(); 260d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org } 261d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org 262d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org if (os2->version < 1) { 263d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org return true; 264d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org } 265d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org 266d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org if (!out->WriteU32(os2->code_page_range_1) || 267d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org !out->WriteU32(os2->code_page_range_2)) { 268d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org return OTS_FAILURE(); 269d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org } 270d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org 271d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org if (os2->version < 2) { 272d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org return true; 273d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org } 274d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org 275d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org if (!out->WriteS16(os2->x_height) || 276d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org !out->WriteS16(os2->cap_height) || 277d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org !out->WriteU16(os2->default_char) || 278d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org !out->WriteU16(os2->break_char) || 279d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org !out->WriteU16(os2->max_context)) { 280d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org return OTS_FAILURE(); 281d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org } 282d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org 283d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org return true; 284d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org} 285d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org 286d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.orgvoid ots_os2_free(OpenTypeFile *file) { 287d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org delete file->os2; 288d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org} 289d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org 290d257d186ae2a08042a412824678f98241a1a4f3cyusukes@chromium.org} // namespace ots 291