FreeBSD-5.3/usr.sbin/pcvt/fed/misc.c
/*
* Copyright (c) 1992, 2000 Hellmuth Michaelis
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE DEVELOPER ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE DEVELOPERS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*---------------------------------------------------------------------------
*
* misc.c font editor misc routines
* -----------------------------------------
*
* last edit-date: [Mon Mar 27 16:38:12 2000]
*
* $FreeBSD: src/usr.sbin/pcvt/fed/misc.c,v 1.5 2000/03/28 09:24:37 hm Exp $
*
*---------------------------------------------------------------------------*/
#include "fed.h"
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
static unsigned char *fonttab; /* ptr to font in core memory */
static char *bitmask[] = {
"....", /* 0 */
"...*", /* 1 */
"..*.", /* 2 */
"..**", /* 3 */
".*..", /* 4 */
".*.*", /* 5 */
".**.", /* 6 */
".***", /* 7 */
"*...", /* 8 */
"*..*", /* 9 */
"*.*.", /* A */
"*.**", /* B */
"**..", /* C */
"**.*", /* D */
"***.", /* E */
"****", /* F */
NULL };
static char lfilename[1024]; /* current filename */
static unsigned int lfilesize; /* current filename's size */
/*---------------------------------------------------------------------------*
* read fontfile into memory
*---------------------------------------------------------------------------*/
void readfont(char *filename)
{
FILE *in;
struct stat sbuf, *sbp;
int ret;
char buffer[1024];
sbp = &sbuf;
if((in = fopen(filename, "r")) == NULL)
{
sprintf(buffer, "cannot open file %s for reading", filename);
perror(buffer);
exit(1);
}
if((fstat(fileno(in), sbp)) != 0)
{
sprintf(buffer, "cannot fstat file %s", filename);
perror(buffer);
exit(1);
}
switch(sbp->st_size)
{
case FONT8X8:
ch_height = HEIGHT8X8;
ch_width = WIDTH8;
break;
case FONT8X10:
ch_height = HEIGHT8X10;
ch_width = WIDTH8;
break;
case FONT8X14:
ch_height = HEIGHT8X14;
ch_width = WIDTH8;
break;
case FONT8X16:
ch_height = HEIGHT8X16;
ch_width = WIDTH8;
break;
case FONT16X16:
ch_height = HEIGHT16X16;
ch_width = WIDTH16;
break;
default:
fprintf(stderr,"error, file %s is no valid font file, size=%d\n",filename,sbp->st_size);
exit(1);
}
if((fonttab = (unsigned char *)malloc((size_t)sbp->st_size)) == NULL)
{
fprintf(stderr,"error, malloc failed\n");
exit(1);
}
strcpy(lfilename, filename); /* save for write */
lfilesize = sbp->st_size; /* save for write */
if((ret = fread(fonttab, sizeof(*fonttab), sbp->st_size, in)) != sbp->st_size)
{
sprintf(buffer,"error reading file %s, size = %d, ret = %d\n",filename,sbp->st_size, ret);
perror(buffer);
exit(1);
}
}
/*---------------------------------------------------------------------------*
* write fontfile to disk
*---------------------------------------------------------------------------*/
void writefont()
{
FILE *in, *out;
int ret;
char buffer[1024];
if((in = fopen(lfilename, "r")) != NULL)
{
int c;
char wfn[1024];
strcpy(wfn, lfilename);
strcat(wfn, ".BAK");
if((out = fopen(wfn, "w")) == NULL)
{
sprintf(buffer, "cannot open file %s for writing", wfn);
perror(buffer);
exit(1);
}
while(( c = fgetc(in) ) != EOF )
fputc(c, out);
fclose(out);
fclose(in);
}
if((out = fopen(lfilename, "w")) == NULL)
{
sprintf(buffer, "cannot open file %s for writing", lfilename);
perror(buffer);
exit(1);
}
if((ret = fwrite(fonttab, sizeof(*fonttab), lfilesize, out)) != lfilesize)
{
sprintf(buffer,"error writing file %s, size=%d, ret=%d\n",lfilename,lfilesize, ret);
perror(buffer);
exit(1);
}
}
/*---------------------------------------------------------------------------*
* display a string
*---------------------------------------------------------------------------*/
void dis_cmd(char *strg)
{
move(22,0);
clrtoeol();
mvaddstr(22,0,strg);
refresh();
}
/*---------------------------------------------------------------------------*
* clear a command string
*---------------------------------------------------------------------------*/
void clr_cmd(void)
{
move(22,0);
clrtoeol();
refresh();
}
/*---------------------------------------------------------------------------*
* move char from src to dest
*---------------------------------------------------------------------------*/
void move_ch(int src, int dst)
{
unsigned char *s, *d;
int offset = 0;
if(ch_width == WIDTH16)
offset = 2;
else
offset = 1;
s = &(fonttab[ch_height * offset * src]);
d = &(fonttab[ch_height * offset * dst]);
bcopy(s, d, (ch_height*offset)); /* src -> dst */
}
/*---------------------------------------------------------------------------*
* exchange char's src and dest
*---------------------------------------------------------------------------*/
void xchg_ch(int src, int dst)
{
unsigned char *s, *d;
unsigned char buf[32];
int offset = 0;
if(ch_width == WIDTH16)
offset = 2;
else
offset = 1;
s = &(fonttab[ch_height * offset * src]);
d = &(fonttab[ch_height * offset * dst]);
bcopy(s, buf, (ch_height*offset)); /* src -> tmp */
bcopy(d, s, (ch_height*offset)); /* dst -> src */
bcopy(buf, d, (ch_height*offset)); /* tmp -> dst */
}
/*---------------------------------------------------------------------------*
* display the current selected character
*---------------------------------------------------------------------------*/
void display(int no)
{
unsigned char *fontchar;
char line[32];
int ln_no;
unsigned char hibyte;
unsigned char lobyte;
int offset;
int r;
offset = 0;
r = 1;
lobyte = 0;
if(ch_width == WIDTH16)
fontchar = &(fonttab[ch_height * 2 * no]);
else
fontchar = &(fonttab[ch_height * no]);
for (ln_no = 0; ln_no < ch_height; ln_no++)
{
hibyte = *(fontchar + (offset++));
if(ch_width == WIDTH16)
{
lobyte = *(fontchar + offset++);
}
strcpy(line,bitmask[(int)((hibyte >> 4) & 0x0f)]);
strcat(line,bitmask[(int)(hibyte & 0x0f)]);
if(ch_width == WIDTH16)
{
strcat(line,bitmask[(int)((lobyte >> 4) & 0x0f)]);
strcat(line,bitmask[(int)(lobyte & 0x0f)]);
mvwprintw(ch_win, r, 1, "%16.16s", line);
}
else
{
mvwprintw(ch_win, r, 1, "%8.8s", line);
}
r++;
}
wmove(ch_win, 1, 1);
wrefresh(ch_win);
}
/*---------------------------------------------------------------------------*
* save character
*---------------------------------------------------------------------------*/
void save_ch(void)
{
unsigned char *s;
int offset = 0;
int r, c;
unsigned short byte;
unsigned short shift;
if(ch_width == WIDTH16)
offset = 2;
else
offset = 1;
s = &(fonttab[ch_height * offset * curchar]);
r = 1;
while(r <= ch_height)
{
c = 1;
byte = 0;
if(offset == 2)
shift = 0x8000;
else
shift = 0x80;
while(c <= ch_width)
{
if(mvwinch(ch_win, r, c) == BLACK)
byte |= shift;
shift = (shift >> 1);
c++;
}
*s++ = byte;
r++;
}
}
/*---------------------------------- E O F ----------------------------------*/