sptobdf.c

unix vnc 协议源码. VNC是一款远程控制工具软件.

/* $XConsortium: sptobdf.c,v 1.5 94/04/17 20:17:51 dpw Exp $ */
/*
 * Copyright 1990, 1991 Network Computing Devices;
 * Portions Copyright 1987 by Digital Equipment Corporation
 *
 * Permission to use, copy, modify, distribute, and sell this software and its
 * documentation for any purpose is hereby granted without fee, provided that
 * the above copyright notice appear in all copies and that both that
 * copyright notice and this permission notice appear in supporting
 * documentation, and that the names of Network Computing Devices and 
 * Digital not be used in advertising or publicity pertaining to 
 * distribution of the software without specific, written prior permission.  
 * Network Computing Devices and Digital make no representations about the
 * suitability of this software for any purpose.  It is provided "as is"
 * without express or implied warranty.
 *
 * NETWORK COMPUTING DEVICES AND DIGITAL DISCLAIM ALL WARRANTIES WITH
 * REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
 * AND FITNESS, IN NO EVENT SHALL NETWORK COMPUTING DEVICES OR DIGITAL BE
 * LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 *
 * Dave Lemke
 */

/*

Copyright (c) 1987, 1994  X Consortium

Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:

The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
IN NO EVENT SHALL THE X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR
OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
OTHER DEALINGS IN THE SOFTWARE.

Except as contained in this notice, the name of the X Consortium shall
not be used in advertising or otherwise to promote the sale, use or
other dealings in this Software without prior written authorization
from the X Consortium.

*/

/*
 * Speedo outline to BFD format converter
 */

#include	<stdio.h>
#include	"speedo.h"

#ifdef EXTRAFONTS
#include	"ncdkeys.h"
#else
#include	"keys.h"
#endif

#include	"iso8859.h"

#define	MAX_BITS	1024

#define	BBOX_CLIP

static char line_of_bits[MAX_BITS + 1];

static FILE *fp;
static ufix16 char_index,
            char_id;
static buff_t font;
static buff_t char_data;
static ufix8 *f_buffer,
           *c_buffer;
static ufix16 mincharsize;
static fix15 cur_y;
static fix15 bit_width,
            bit_height;

static ufix8 key[] =
{
    KEY0,
    KEY1,
    KEY2,
    KEY3,
    KEY4,
    KEY5,
    KEY6,
    KEY7,
    KEY8
};				/* Font decryption key */


static char *progname;
static char *fontname = NULL;
static char *fontfile = NULL;

static int  point_size = 120;
static int  x_res = 72;
static int  y_res = 72;
static int  quality = 0;
static int  iso_encoding = 1;

static int  num_props = 7;
static int  stretch = 120;

static specs_t specs;

static void dump_header();

static void
usage()
{
    fprintf(stderr, "Usage: %s [-xres x resolution] [-yres y resolution]\n\t[-ptsize pointsize] [-fn fontname] [-q quality (0-1)] fontfile\n", progname);
    fprintf(stderr, "Where:\n");
    fprintf(stderr, "-xres specifies the X resolution (72)\n");
    fprintf(stderr, "-yres specifies the Y resolution (72)\n");
    fprintf(stderr, "-pts specifies the pointsize in decipoints (120)\n");
    fprintf(stderr, "-fn specifies the font name (full Bitstream name)\n");
    fprintf(stderr, "-q specifies the font quality [0-1] (0)\n");
    fprintf(stderr, "\n");
    exit(0);
}

static      fix15
read_2b(ptr)
    ufix8      *ptr;
{
    fix15       tmp;

    tmp = *ptr++;
    tmp = (tmp << 8) + *ptr;
    return tmp;
}

static      fix31
read_4b(ptr)
    ufix8      *ptr;
{
    fix31       tmp;

    tmp = *ptr++;
    tmp = (tmp << 8) + *ptr++;
    tmp = (tmp << 8) + *ptr++;
    tmp = (tmp << 8) + *ptr;
    return tmp;
}

static void
process_args(ac, av)
    int         ac;
    char      **av;
{
    int         i;

    for (i = 1; i < ac; i++) {
	if (!strncmp(av[i], "-xr", 3)) {
	    if (av[i + 1]) {
		x_res = atoi(av[++i]);
	    } else
		usage();
	} else if (!strncmp(av[i], "-yr", 3)) {
	    if (av[i + 1]) {
		y_res = atoi(av[++i]);
	    } else
		usage();
	} else if (!strncmp(av[i], "-pt", 3)) {
	    if (av[i + 1]) {
		point_size = atoi(av[++i]);
	    } else
		usage();
	} else if (!strncmp(av[i], "-fn", 3)) {
	    if (av[i + 1]) {
		fontname = av[++i];
	    } else
		usage();
	} else if (!strncmp(av[i], "-q", 2)) {
	    if (av[i + 1]) {
		quality = atoi(av[++i]);
	    } else
		usage();
	} else if (!strncmp(av[i], "-st", 3)) {
	    if (av[i + 1]) {
		stretch = atoi(av[++i]);
	    } else
		usage();
	} else if (!strncmp(av[i], "-noni", 5)) {
	    iso_encoding = 0;
	} else if (*av[i] == '-') {
	    usage();
	} else
	    fontfile = av[i];
    }
    if (!fontfile)
	usage();
}

void
main(argc, argv)
    int         argc;
    char      **argv;
{
    ufix32      i;
    ufix8       tmp[16];
    ufix32      minbufsize;
    ufix16      cust_no;
    int         first_char_index,
                num_chars;

    progname = argv[0];
    process_args(argc, argv);
    fp = fopen(fontfile, "r");
    if (!fp) {
	fprintf(stderr, "No such font file, \"%s\"\n", fontfile);
	exit(-1);
    }
    if (fread(tmp, sizeof(ufix8), 16, fp) != 16) {
	fprintf(stderr, "error reading \"%s\"\n", fontfile);
	exit(-1);
    }
    minbufsize = (ufix32) read_4b(tmp + FH_FBFSZ);
    f_buffer = (ufix8 *) malloc(minbufsize);
    if (!f_buffer) {
	fprintf(stderr, "can't get %x bytes of memory\n", minbufsize);
	exit(-1);
    }
    fseek(fp, (ufix32) 0, 0);

    if (fread(f_buffer, sizeof(ufix8), (ufix16) minbufsize, fp) != minbufsize) {
	fprintf(stderr, "error reading file \"%s\"\n", fontfile);
	exit(-1);
    }
    mincharsize = read_2b(f_buffer + FH_CBFSZ);

    c_buffer = (ufix8 *) malloc(mincharsize);
    if (!c_buffer) {
	fprintf(stderr, "can't get %x bytes for char buffer\n", mincharsize);
	exit(-1);
    }
    /* init */
    sp_reset();

    font.org = f_buffer;
    font.no_bytes = minbufsize;

    if ((cust_no = sp_get_cust_no(font)) != CUS0) {
	fprintf(stderr, "Non-standard encryption for \"%s\"\n", fontfile);
	exit(-1);
    }
    sp_set_key(key);

    first_char_index = read_2b(f_buffer + FH_FCHRF);
    num_chars = read_2b(f_buffer + FH_NCHRL);

    /* set up specs */
    /* Note that point size is in decipoints */
    specs.pfont = &font;
    /* XXX beware of overflow */
    specs.xxmult = point_size * x_res / 720 * (1 << 16);
    specs.xymult = 0L << 16;
    specs.xoffset = 0L << 16;
    specs.yxmult = 0L << 16;
    specs.yymult = point_size * y_res / 720 * (1 << 16);
    specs.yoffset = 0L << 16;
    switch (quality) {
    case 0:
	specs.flags = 0;
	break;
    case 1:
	specs.flags = MODE_SCREEN;
	break;
    case 2:
	specs.flags = MODE_2D;
	break;
    default:
	fprintf(stderr, "bogus quality value %d\n", quality);
	break;
    }
    specs.out_info = NULL;

    if (!fontname) {
	fontname = (char *) (f_buffer + FH_FNTNM);
    }
    if (iso_encoding)
	num_chars = num_iso_chars;
    dump_header(num_chars);

    if (!sp_set_specs(&specs)) {
	fprintf(stderr, "can't set specs\n");
    } else {
	if (iso_encoding) {
	    for (i = 0; i < num_iso_chars * 2; i += 2) {
		char_index = iso_map[i + 1];
		char_id = iso_map[i];
		if (!sp_make_char(char_index)) {
		    fprintf(stderr, "can't make char %x\n", char_index);
		}
	    }
	} else {
	    for (i = 0; i < num_chars; i++) {
		char_index = i + first_char_index;
		char_id = sp_get_char_id(char_index);
		if (char_id) {
		    if (!sp_make_char(char_index)) {
			fprintf(stderr, "can't make char %x\n", char_index);
		    }
		}
	    }
	}
    }

    (void) fclose(fp);

    printf("ENDFONT\n");
    exit(0);
}

static void
dump_header(num_chars)
    ufix32      num_chars;
{
    fix15       xmin,
                ymin,
                xmax,
                ymax;
    fix15       ascent,
                descent;
    fix15       pixel_size;

    xmin = read_2b(f_buffer + FH_FXMIN);