Sweden-Number/tools/fnt2fon.c

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/*
* fnttofon. Combine several fnt files in one fon file
*
* Copyright 2004 Huw Davies
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
unsigned char MZ_hdr[] = {'M', 'Z', 0x0d, 0x01, 0x01, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00, 0xff, 0xff, 0x00, 0x00,
0xb8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00,
0x0e, 0x1f, 0xba, 0x0e, 0x00, 0xb4, 0x09, 0xcd, 0x21, 0xb8, 0x01, 0x4c, 0xcd, 0x21, 'T', 'h',
'i', 's', ' ', 'P', 'r', 'o', 'g', 'r', 'a', 'm', ' ', 'c', 'a', 'n', 'n', 'o',
't', ' ', 'b', 'e', ' ', 'r', 'u', 'n', ' ', 'i', 'n', ' ', 'D', 'O', 'S', ' ',
'm', 'o', 'd', 'e', 0x0d, 0x0a, 0x24, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
unsigned char NE_hdr[] = {'N', 'E', 0x05, 0x01, 0xff, 0xff, 0x02, 0x00, 0x5c, 0x35, 0xe4, 0x41, 0x00, 0x83, 0x00, 0x00,
/* entry table tbd, 2 bytes long. */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0xff, 0xff, 0x40, 0x00, 0x40, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00,
/* tbd bytes in non-resident name table, off of seg table 0x40, off of resource table 0x40, off of
resident name table (tbd) etc */
0x00, 0x00, 0x04, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04
};
static void usage(char **argv)
{
fprintf(stderr, "%s fntfiles output.fon\n", argv[0]);
return;
}
int main(int argc, char **argv)
{
int num_files, i, j;
FILE *fp, *ofp;
long off;
char name[200];
int c;
char *cp;
short pt, ver, dpi[2];
int resource_table_len, non_resident_name_len, resident_name_len;
unsigned short resource_table_off, resident_name_off, module_ref_off, non_resident_name_off, fontdir_off, font_off;
char resident_name[200] = "";
int fontdir_len = 2, fontdir_len_shift;
char non_resident_name[200] = "";
int *file_lens, nread;
int first_res = 0x0050, pad, res;
char fnt_header[0x100];
char buf[0x1000];
if(argc < 3) {
usage(argv);
exit(1);
}
num_files = argc - 2;
file_lens = malloc(num_files * sizeof(int));
for(i = 0; i < num_files; i++) {
fp = fopen(argv[i+1], "r");
if(!fp) {
fprintf(stderr, "Can't open %s\n", argv[i+1]);
usage(argv);
exit(1);
}
fread(&ver, sizeof(short), 1, fp);
if(ver != 0x200 && ver != 0x300) {
fprintf(stderr, "invalid fnt file %s ver %d\n", argv[i+1], ver);
exit(1);
}
fread(file_lens + i, sizeof(int), 1, fp);
fseek(fp, 0x44, SEEK_SET);
fread(&pt, sizeof(short), 1, fp);
fread(dpi, sizeof(short), 2, fp);
fseek(fp, 0x69, SEEK_SET);
fread(&off, sizeof(long), 1, fp);
fseek(fp, off, SEEK_SET);
cp = name;
while((c = fgetc(fp)) != 0 && c != EOF)
*cp++ = c;
*cp = '\0';
fprintf(stderr, "%s %d pts %dx%d dpi\n", name, pt, dpi[0], dpi[1]);
fclose(fp);
fontdir_len += 0x74 + strlen(name) + 1; /* FIXME does the fontdir entry for version 3 fonts differ from 2? */
if(i == 0) {
sprintf(non_resident_name, "FONTRES 100,%d,%d : %s %d", dpi[0], dpi[1], name, pt);
strcpy(resident_name, name);
} else {
sprintf(non_resident_name + strlen(non_resident_name), ",%d", pt);
}
}
if(dpi[0] <= 108)
strcat(non_resident_name, " (VGA res)");
else
strcat(non_resident_name, " (8514 res)");
non_resident_name_len = strlen(non_resident_name) + 4;
/* shift count + fontdir entry + num_files of font + nul type + \007FONTDIR */
resource_table_len = 2 + 20 + 8 + 12 * num_files + 2 + 8;
resource_table_off = NE_hdr[0x24];
resource_table_off |= (NE_hdr[0x25] << 8);
resident_name_off = resource_table_off + resource_table_len;
NE_hdr[0x20] = non_resident_name_len & 0xff;
NE_hdr[0x21] = (non_resident_name_len >> 8) & 0xff;
NE_hdr[0x26] = resident_name_off & 0xff;
NE_hdr[0x27] = (resident_name_off >> 8) & 0xff;
resident_name_len = strlen(resident_name) + 4;
module_ref_off = resident_name_off + resident_name_len;
NE_hdr[0x28] = module_ref_off & 0xff;
NE_hdr[0x29] = (module_ref_off >> 8) & 0xff;
NE_hdr[0x2a] = NE_hdr[0x28];
NE_hdr[0x2b] = NE_hdr[0x29];
NE_hdr[0x04] = NE_hdr[0x28];
NE_hdr[0x05] = NE_hdr[0x29];
non_resident_name_off = 0x80 + module_ref_off + 2;
NE_hdr[0x2c] = non_resident_name_off & 0xff;
NE_hdr[0x2d] = (non_resident_name_off >> 8) & 0xff;
fontdir_off = (non_resident_name_off + non_resident_name_len + 15) & ~0xf;
font_off = (fontdir_off + fontdir_len + 15) & ~0x0f;
ofp = fopen(argv[argc - 1], "w");
fwrite(MZ_hdr, sizeof(MZ_hdr), 1, ofp);
fwrite(NE_hdr, sizeof(NE_hdr), 1, ofp);
fputc(0x04, ofp);
fputc(0x00, ofp); /* shift of 4 */
fputc(0x07, ofp);
fputc(0x80, ofp); /* type 0x8007 */
fputc(0x01, ofp);
fputc(0x00, ofp); /* 1 off */
fputc(0x00, ofp); fputc(0x00, ofp); fputc(0x00, ofp); fputc(0x00, ofp);
fontdir_off >>= 4;
fputc(fontdir_off & 0xff, ofp);
fputc((fontdir_off >> 8) & 0xff, ofp);
fontdir_len_shift = (fontdir_len + 15) >> 4;
fputc(fontdir_len_shift & 0xff, ofp);
fputc((fontdir_len_shift >> 8) & 0xff, ofp);
fputc(0x50, ofp);
fputc(0x0c, ofp);
fputc(0x7c, ofp);
fputc(0x00, ofp);
fputc(0x00, ofp); fputc(0x00, ofp);
fputc(0x00, ofp); fputc(0x00, ofp);
fputc(0x08, ofp);
fputc(0x80, ofp); /* type 0x8008 */
fputc(num_files & 0xff, ofp);
fputc((num_files >> 8) & 0xff, ofp); /* num_files off */
fputc(0x00, ofp); fputc(0x00, ofp); fputc(0x00, ofp); fputc(0x00, ofp);
for(res = first_res | 0x8000, i = 0; i < num_files; i++, res++) {
int len = (file_lens[i] + 15) & ~0xf;
fputc((font_off >> 4) & 0xff, ofp);
fputc((font_off >> 12) & 0xff, ofp);
fputc((len >> 4) & 0xff, ofp);
fputc((len >> 12) & 0xff, ofp);
font_off += len;
fputc(0x30, ofp);
fputc(0x1c, ofp);
fputc(res & 0xff, ofp);
fputc((res >> 8) & 0xff, ofp);
fputc(0x00, ofp); fputc(0x00, ofp);
fputc(0x00, ofp); fputc(0x00, ofp);
}
fputc(0x00, ofp); fputc(0x00, ofp); /* nul type */
fputc(strlen("FONTDIR"), ofp);
fwrite("FONTDIR", strlen("FONTDIR"), 1, ofp);
fputc(strlen(resident_name), ofp);
fwrite(resident_name, strlen(resident_name), 1, ofp);
fputc(0x00, ofp); fputc(0x00, ofp);
fputc(0x00, ofp);
fputc(0x00, ofp); fputc(0x00, ofp);
fputc(strlen(non_resident_name), ofp);
fwrite(non_resident_name, strlen(non_resident_name), 1, ofp);
fputc(0x00, ofp); fputc(0x00, ofp);
fputc(0x00, ofp);
pad = (non_resident_name_off + non_resident_name_len) & 0xf;
if(pad != 0)
pad = 0x10 - pad;
for(i = 0; i < pad; i++)
fputc(0x00, ofp);
/* FONTDIR resource */
fputc(num_files & 0xff, ofp);
fputc((num_files >> 8) & 0xff, ofp);
for(res = first_res, i = 0; i < num_files; i++, res++) {
fp = fopen(argv[i+1], "r");
fputc(res & 0xff, ofp);
fputc((res >> 8) & 0xff, ofp);
fread(fnt_header, 0x72, 1, fp);
fwrite(fnt_header, 0x72, 1, ofp);
fseek(fp, 0x69, SEEK_SET);
fread(&off, sizeof(long), 1, fp);
fseek(fp, off, SEEK_SET);
cp = name;
while((c = fgetc(fp)) != 0 && c != EOF)
*cp++ = c;
*cp = '\0';
fwrite(name, strlen(name) + 1, 1, ofp);
fclose(fp);
}
pad = fontdir_len & 0xf;
if(pad != 0)
pad = 0x10 - pad;
for(i = 0; i < pad; i++)
fputc(0x00, ofp);
for(res = first_res, i = 0; i < num_files; i++, res++) {
fp = fopen(argv[i+1], "r");
while(1) {
nread = read(fileno(fp), buf, sizeof(buf));
if(!nread) break;
fwrite(buf, nread, 1, ofp);
}
fclose(fp);
pad = file_lens[i] & 0xf;
if(pad != 0)
pad = 0x10 - pad;
for(j = 0; j < pad; j++)
fputc(0x00, ofp);
}
fclose(ofp);
return 0;
}