mirror of
https://github.com/lexborisov/Modest
synced 2024-11-21 21:31:25 +03:00
132 lines
4.8 KiB
C
132 lines
4.8 KiB
C
/*
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Copyright (C) 2016-2017 Alexander Borisov
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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Author: lex.borisov@gmail.com (Alexander Borisov)
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*/
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#include "myfont/os_2.h"
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mystatus_t myfont_load_table_os_2(myfont_font_t* mf, uint8_t* font_data, size_t data_size)
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{
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memset(&mf->table_os_2, 0, sizeof(myfont_table_os_2_t));
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if(mf->cache.tables_offset[MyFONT_TKEY_OS_2] == 0)
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return MyFONT_STATUS_OK;
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myfont_table_os_2_t *tos_2 = &mf->table_os_2;
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const uint32_t table_offset = mf->cache.tables_offset[MyFONT_TKEY_OS_2];
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/* get current data */
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uint8_t *data = &font_data[table_offset];
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uint32_t pos = table_offset + 32 + 10 + 16 + 4 + 16;
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if(pos > data_size)
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return MyFONT_STATUS_ERROR_TABLE_UNEXPECTED_ENDING;
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tos_2->version = myfont_read_u16(&data);
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tos_2->xAvgCharWidth = myfont_read_16(&data);
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tos_2->usWeightClass = myfont_read_u16(&data);
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tos_2->usWidthClass = myfont_read_u16(&data);
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tos_2->fsType = myfont_read_16(&data);
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tos_2->ySubscriptXSize = myfont_read_16(&data);
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tos_2->ySubscriptYSize = myfont_read_16(&data);
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tos_2->ySubscriptXOffset = myfont_read_16(&data);
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tos_2->ySubscriptYOffset = myfont_read_16(&data);
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tos_2->ySuperscriptXSize = myfont_read_16(&data);
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tos_2->ySuperscriptYSize = myfont_read_16(&data);
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tos_2->ySuperscriptXOffset = myfont_read_16(&data);
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tos_2->ySuperscriptYOffset = myfont_read_16(&data);
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tos_2->yStrikeoutSize = myfont_read_16(&data);
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tos_2->yStrikeoutPosition = myfont_read_16(&data);
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tos_2->sFamilyClass = myfont_read_16(&data);
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memcpy(tos_2->panose, data, 10);
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data += 10;
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tos_2->ulUnicodeRange1 = myfont_read_u32(&data);
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tos_2->ulUnicodeRange2 = myfont_read_u32(&data);
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tos_2->ulUnicodeRange3 = myfont_read_u32(&data);
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tos_2->ulUnicodeRange4 = myfont_read_u32(&data);
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memcpy(tos_2->achVendID, data, 4);
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data += 4;
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tos_2->fsSelection = myfont_read_u16(&data);
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tos_2->usFirstCharIndex = myfont_read_u16(&data);
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tos_2->usLastCharIndex = myfont_read_u16(&data);
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tos_2->sTypoAscender = myfont_read_16(&data);
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tos_2->sTypoDescender = myfont_read_16(&data);
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tos_2->sTypoLineGap = myfont_read_16(&data);
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tos_2->usWinAscent = myfont_read_u16(&data);
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tos_2->usWinDescent = myfont_read_u16(&data);
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switch (tos_2->version) {
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case 1:
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pos += 8;
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if(pos > data_size)
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return MyFONT_STATUS_ERROR_TABLE_UNEXPECTED_ENDING;
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tos_2->ulCodePageRange1 = myfont_read_u32(&data);
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tos_2->ulCodePageRange2 = myfont_read_u32(&data);
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break;
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case 2:
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case 3:
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case 4:
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pos += 18;
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if(pos > data_size)
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return MyFONT_STATUS_ERROR_TABLE_UNEXPECTED_ENDING;
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tos_2->ulCodePageRange1 = myfont_read_u32(&data);
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tos_2->ulCodePageRange2 = myfont_read_u32(&data);
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tos_2->sxHeight = myfont_read_16(&data);
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tos_2->sCapHeight = myfont_read_16(&data);
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tos_2->usDefaultChar = myfont_read_u16(&data);
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tos_2->usBreakChar = myfont_read_u16(&data);
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tos_2->usMaxContext = myfont_read_u16(&data);
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break;
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case 5:
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pos += 22;
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if(pos > data_size)
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return MyFONT_STATUS_ERROR_TABLE_UNEXPECTED_ENDING;
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tos_2->ulCodePageRange1 = myfont_read_u32(&data);
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tos_2->ulCodePageRange2 = myfont_read_u32(&data);
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tos_2->sxHeight = myfont_read_16(&data);
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tos_2->sCapHeight = myfont_read_16(&data);
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tos_2->usDefaultChar = myfont_read_u16(&data);
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tos_2->usBreakChar = myfont_read_u16(&data);
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tos_2->usMaxContext = myfont_read_u16(&data);
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tos_2->usLowerOpticalPointSize = myfont_read_u16(&data);
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tos_2->usUpperOpticalPointSize = myfont_read_u16(&data);
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break;
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default:
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break;
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}
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return MyFONT_STATUS_OK;
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}
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int8_t myfont_os_2_panose(myfont_font_t *mf, myfont_table_os_2_panose_t id)
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{
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return mf->table_os_2.panose[id];
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}
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