Modest/source/myfont/name.c
2017-03-03 09:20:23 +03:00

96 lines
3.2 KiB
C

/*
Copyright (C) 2016 Alexander Borisov
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
Author: lex.borisov@gmail.com (Alexander Borisov)
*/
#include "myfont/name.h"
mystatus_t myfont_load_table_name(myfont_font_t *mf)
{
memset(&mf->table_name, 0, sizeof(myfont_table_name_t));
if(mf->cache.tables_offset[MyFONT_TKEY_name] == 0)
return MyFONT_STATUS_OK;
myfont_table_name_t *tname = &mf->table_name;
const uint32_t table_offset = mf->cache.tables_offset[MyFONT_TKEY_name];
uint32_t pos = table_offset + 6;
if(pos > mf->file_size)
return MyFONT_STATUS_ERROR_TABLE_UNEXPECTED_ENDING;
/* get current data */
uint8_t *data = &mf->file_data[table_offset];
tname->format = myfont_read_u16(&data);
tname->count = myfont_read_u16(&data);
tname->stringOffset = myfont_read_u16(&data);
pos = pos + (tname->count * 12);
if(pos > mf->file_size) {
tname->count = 0;
return MyFONT_STATUS_ERROR_TABLE_UNEXPECTED_ENDING;
}
myfont_record_t *record = (myfont_record_t *)myfont_calloc(mf, tname->count, sizeof(myfont_record_t));
if(record == NULL)
return MyFONT_STATUS_ERROR_MEMORY_ALLOCATION;
for(uint16_t i = 0; i < tname->count; i++) {
record[i].platformID = myfont_read_u16(&data);
record[i].encodingID = myfont_read_u16(&data);
record[i].languageID =myfont_read_u16(&data);
record[i].nameID = myfont_read_u16(&data);
record[i].length = myfont_read_u16(&data);
record[i].offset = myfont_read_u16(&data);
}
tname->nameRecord = record;
if(tname->format == 1)
{
pos += 2;
if(pos > mf->file_size)
return MyFONT_STATUS_ERROR_TABLE_UNEXPECTED_ENDING;
tname->langTagCount = myfont_read_u16(&data);
pos = pos + (tname->langTagCount * 4);
if(pos > mf->file_size) {
tname->langTagCount = 0;
return MyFONT_STATUS_ERROR_TABLE_UNEXPECTED_ENDING;
}
myfont_ltag_record_t *lang_record = (myfont_ltag_record_t *)myfont_calloc(mf, tname->langTagCount, sizeof(myfont_ltag_record_t));
if(lang_record == NULL)
return MyFONT_STATUS_ERROR_TABLE_UNEXPECTED_ENDING;
for(uint16_t i = 0; i < tname->count; i++) {
lang_record[i].length = myfont_read_u16(&data);
lang_record[i].offset = myfont_read_u16(&data);
}
tname->langTagRecord = lang_record;
}
return MyFONT_STATUS_OK;
}