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48 lines
1003 B
C
48 lines
1003 B
C
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/*
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* Copyright (C) 2013 Jan Bobrowski <jb@wizard.ae.krakow.pl>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* version 2 as published by the Free Software Foundation.
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*/
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#include <string.h>
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#include <stdlib.h>
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#include "ttf2woff.h"
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void read_ttf(struct ttf *ttf, u8 *data, size_t length, unsigned start)
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{
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int i;
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u8 *p;
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if(length-start<+12+16)
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BAD_FONT;
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ttf->flavor = g32(data+start);
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// XXX check type 'true', or ...
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ttf->ntables = g16(data+start+4);
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if(!ttf->ntables || length-start<=12+16*ttf->ntables)
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BAD_FONT;
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alloc_tables(ttf);
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p = data+start+12;
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for(i=0; i<ttf->ntables; i++) {
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struct table *t = &ttf->tables[i];
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u32 off=g32(p+8), len=g32(p+12);
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if((off|len)>length || off+len>length)
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BAD_FONT;
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t->tag = g32(p);
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t->csum = g32(p+4);
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t->pos = off;
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t->buf.ptr = data + off;
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t->buf.len = len;
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name_table(t);
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// echo("%5X %5X %s", off, len, t->name);
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p += 16;
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}
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}
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