blob: 87716c1c9ac2ba729bc8e247ae26142a95360916 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
|
/*
* Copyright (C) 2013 Jan Bobrowski <jb@wizard.ae.krakow.pl>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* version 2 as published by the Free Software Foundation.
*/
#include <string.h>
#include <stdlib.h>
#include "ttf2woff.h"
void read_ttf(struct ttf *ttf, u8 *data, size_t length, unsigned start)
{
int i;
u8 *p;
if(length-start<+12+16)
BAD_FONT;
ttf->flavor = g32(data+start);
// XXX check type 'true', or ...
ttf->ntables = g16(data+start+4);
if(!ttf->ntables || length-start<=12+16*ttf->ntables)
BAD_FONT;
alloc_tables(ttf);
p = data+start+12;
for(i=0; i<ttf->ntables; i++) {
struct table *t = &ttf->tables[i];
u32 off=g32(p+8), len=g32(p+12);
if((off|len)>length || off+len>length)
BAD_FONT;
t->tag = g32(p);
t->csum = g32(p+4);
t->pos = off;
t->buf.ptr = data + off;
t->buf.len = len;
name_table(t);
// echo("%5X %5X %s", off, len, t->name);
p += 16;
}
}
|
