[unix-history] / usr / src / cmd / vpr / vfontinfo.c

static char *sccsid = "@(#)vfontinfo.c	4.4 (Berkeley) 5/30/81";
/* Font Information for VCat-style fonts
 *      Andy Hertzfeld  4/79
 *
 *	Modified to print Ascii chars 1/80 by Mark Horton
 *	Zoom option added 5/81 by Steve Stone with tables from Mark Horton.
 *	Message option added 5/31 by Mark Horton
 */
#include <stdio.h>
#include <ctype.h>
#include <vfont.h>

struct header FontHeader;
struct dispatch disptable[256] ;

char	IName[100];
char *	rdchar();
long	fbase;

char	defascii[256];
char	*charswanted = defascii;
int	verbose;
char	charbits[4000];
int	H, W, WB, base;
int 	zoom = 1;

char msgout[24][80];
int msgflag = 0;
int curline, curcol;	/* cursor, numbered from lower left corner */
int minline=24, maxline=0, maxcol=0;

main(argc,argv)
int argc;
char **argv;

{
	int FID,i,j;

	while (argc > 1 && argv[1][0] == '-') {
		switch(argv[1][1]) {
		case 'v':
			verbose++;
			break;
		case 'z':
			zoom = argv[1][2] - '0';
			break;
		case 'm':
			msgflag = 1;
			zoom = 2;
			for (i=0; i<24; i++)
				for (j=0; j<80; j++)
					msgout[i][j] = ' ';
			curline = 5; curcol = 0;
			break;
		default:
			printf("Bad flag: %s\n", argv[1]);
		}
		argc--; argv++;
	}
	if (argc < 2) {
		fprintf(stderr,"Usage: %s filename", argv[0]);
		exit(2);
	}

	for (i=0; i<128; i++)
		defascii[i] = i;
	if (argc >= 3)
		charswanted = argv[2];

	sprintf(IName,"/usr/lib/vfont/%s",argv[1]);
	if ((FID = open(argv[1],0)) < 0)
		if ((FID = open(IName,0)) < 0) { 
			printf("Can't find %s\n",argv[1]);
			exit(8); 
		};

	if (read(FID,&FontHeader,sizeof FontHeader) != sizeof FontHeader)
		error("Bad header in Font file.");

	if (read(FID,&disptable[0],sizeof disptable) != sizeof disptable)
		error("Bad dispatch table in Font file");

	fbase = sizeof FontHeader + sizeof disptable;

	if (FontHeader.magic != 0436)
		printf("Magic number %o wrong\n", FontHeader.magic);
	if (!msgflag) {
		printf("Font %s, ",argv[1]);
		printf("raster size %d, ",FontHeader.size);
		printf("max width %d, max height %d, xtend %d\n",
			FontHeader.maxx, FontHeader.maxy,FontHeader.xtend);
		printf("\n ASCII     offset    size  left    right   up     down    width \n");
	}

	for (i=0; i<256; i++) {
		j = charswanted[i];
		if (i>0 && j==0)
			break;
		if (disptable[j].nbytes != 0) {
			if (!msgflag)
				printf("  %3o %2s     %4d   %4d   %4d   %4d   %4d   %4d   %5d\n",
					j, rdchar(j),
					disptable[j].addr,
					disptable[j].nbytes,
					disptable[j].left,
					disptable[j].right,
					disptable[j].up,
					disptable[j].down,
					disptable[j].width);
			if (verbose || msgflag) {
				int len = disptable[j].nbytes;
				int k, l, last;

				lseek(FID, fbase+disptable[j].addr, 0);
				read(FID, charbits, len);
				H = (disptable[j].up) + (disptable[j].down);
				W = (disptable[j].left) + (disptable[j].right);
				base = disptable[j].up;
				WB = (W+7)/8;
				if (zoom < 0) {
					/*
					 * Old 1 for 1 code.  The aspect ratio
					 * is awful, so we don't use it.
					 */
					for (k=0; k<H; k++) {
						for (last=W-1; last >= 0; last--)
							if (fbit(k, last))
								break;
						for (l=0; l<=W-1; l++) {
							printf("%c", fbit(k,l)?'M':' ');
						}
						printf("\n");
					}
					printf("\n");
				} else {
					shozoom();
					if (msgflag) {
						k = disptable[j].width;
						if (zoom == 0) k *= 2;
						else if (zoom == 2) k /= 2;
						curcol += k;
					}
				}
			}
		}
	}
	if (msgflag) {
		for (i=maxline; i>=minline; i--) {
			for (j=0; j<maxcol; j++)
				putchar(msgout[i][j]);
			putchar('\n');
		}
	}
}

error(string)
char *string;

{ 
	printf("\nvfontinfo: %s\n",string);
	exit(8);
};

char *rdchar(c)
char c;
{
	static char ret[3];
	ret[0] = isprint(c) ? ' ' : '^';
	ret[1] = isprint(c) ?  c  : c^0100;
	ret[2] = 0;
	return (ret);
}

int
fbit(row, col)
int row, col;
{
	int thisbyte, thisbit, ret;

	if (row<0 || row>=H || col>=W) return(0);
	thisbyte = charbits[row*WB + (col>>3)] & 0xff;
	thisbit = 0x80 >> (col&7);
	ret = thisbyte & thisbit;
	return (ret != 0);
}


/*
The implementation would work like this:
	zoom level	method
	0		2 chars/pixel, 1 is "[]", 0 is "  ".
	1		2 pixels/char 2x1, using " " "," "'" "|"
	2		8 pixels/char 4x2, using 16x16 table
	3		32 pixels/char 8x4, mapped into (2)
	4 and up	similar, mapped into (2)

The 16x16 table maps a 4x2 pattern into a printing ascii character which
most closely approximates that pattern, e.g. the pattern
	|'
	''
would be represented by the character "[".  I have such a table worked out.

Grainer zoom levels would take the rule of reducing it into a smaller bitmap,
or-ing the bits together.  (e.g. level 3 would take a 2x2 chunk and map it
into a single pixel: 0 if all 4 are 0, 1 otherwise.)  These pixels would be
displayed as in 2.
*/

/*
 * graphtab: a table for rudimentary graphics on ordinary terminals.
 * For each 4x2 bit pattern of the form:
 *	ae
 *	bf
 *	cg
 *	dh
 * form the 4 bit quantities abcd and efgh and get table entry
 *	graphtab[abcd][efgh]
 * to display in that character position.
 *
 * General philosophies: the dh bits are intended for descenders where
 * possible.  Characters with radically different appearance on different
 * terminals (e.g. _ and ^) are avoided.
 *
 * Version 1.0, March 1981, Mark Horton.
 */

char tab1[4] = {
	' ', ',', '\'', '|'
};

char graphtab[16][16] = {
' ', '.', '.', ',', '.', ';', ':', 'j', '\'', ':', ':', ';', '\'', ';', '!', '|',
'.', '.', ':', ',', ';', ';', ';', 'j', '/', ';', ';', ';', 'j', 'j', 'j', 'j',
'.', ',', '~', ',', 'r', '<', 'j', 'q', '/', ';', 'I', ';', '/', '|', 'I', '|',
',', ',', 'r', 'x', '/', '/', '/', 'd', '/', '/', '/', 'd', '/', '/', '/', 'd',
'.', ':', '\\', ';', '-', '=', 'v', 'q', '\'', ':', '<', '|', '\'', ':', '+', '+',
';', ';', '>', ';', '=', '=', 'g', 'g', '\'', ':', 'S', 'S', '/', '/', '/', '+',
':', '\\', '\\', '\\', 'r', '<', 'w', 'q', '/', '<', '6', '4', '/', '/', 'd', '+',
'l', 'L', '+', 'b', 'y', '[', 'p', 'g', '/', '<', '/', '6', '/', '/', '/', '+',
'`', ':', ':', ';', '`', '\\', '\\', '\\', '"', ':', ':', ';', '`', '\\', 'Y', 'T',
';', ';', ';', ';', '`', '2', '>', '\\', ':', '=', ';', ';', '?', '?', ']', ']',
':', ';', ';', ';', '>', '2', '>', '\\', 'F', ';', 'O', ';', '7', '?', ']', '7',
';', ';', ';', ';', '?', '2', '>', 'b', ';', ';', ';', ';', '?', '?', ']', '#',
'\'', '\\', '\\', '\\', '`', '\\', '\\', '\\', '\'', '\'', '<', '5', '"', '"', 'v', 'q',
';', '\\', '\\', '\\', '`', '=', '\\', '\\', '\'', '\'', '5', '5', '"', '?', 'g', 'g',
'I', 'L', 'L', 'L', 'D', '\\', 'b', 'f', 'F', '[', '[', '[', 'P', '?', '#', 'M',
'|', '|', '|', '|', '|', '#', '+', '#', 'T', '[', 'F', 'F', 'P', '?', 'P', 'M'
};


shozoom()
{
	register i;

	if (zoom == 0) 
		sho0();
	else if (zoom == 1)
		sho1();
	else if (zoom == 2)
		sho2();
}

sho0()
{
	register k,l;

	for (k=0; k<H; k++) {
		for (l=0; l<W; l++)
			printf("%s", fbit(k,l)?"[]": "  ");
		printf("\n");
	}
	printf("\n");
}

sho1()
{
	register i,k,l;

	k = 0;
	while (k < H) {
		for(l=0;l<W;l++) {
			i = fbit(k,l)*2 + fbit(k+1,l);
			printf("%c",tab1[i]);
			l++;
		}
		printf("\n");
		k += 2;
	}
	printf("\n");
}

sho2()
{
	register i,j,k,l;
	int line = curline + (base+3)/4;
	int col;

	k = base%4;
	if (k > 0) k -= 4;
	while (k < H) {
		l = 0;
		col = curcol;
		while (l<W) {
			i = fbit(k,l)*8 + fbit(k+1,l)*4 + 
			    fbit(k+2,l)*2 + fbit(k+3,l);
			l++;
			j = fbit(k,l)*8 + fbit(k+1,l)*4 + 
			    fbit(k+2,l)*2 + fbit(k+3,l);

			if (msgflag) {
				if (graphtab[i][j] != ' ') {
					if (line > maxline) maxline = line;
					if (line < minline) minline = line;
					if (col > maxcol)   maxcol  = col;
				}
				msgout[line][col] = graphtab[i][j];
			} else
				printf("%c",graphtab[i][j]);
			l++;
			col++;
		}
		if (msgflag == 0)
			printf("\n");
		k += 4;
		line--;
	}
	if (msgflag == 0)
		printf("\n");
}
Commit	Line	Data
4b9ccde7	1	static char *sccsid = "@(#)vfontinfo.c 4.4 (Berkeley) 5/30/81";
98086f73	2	/* Font Information for VCat-style fonts
2da2fdcf	3	* Andy Hertzfeld 4/79
98086f73 BJ	4	*
98086f73 BJ	5	* Modified to print Ascii chars 1/80 by Mark Horton
2da2fdcf	6	* Zoom option added 5/81 by Steve Stone with tables from Mark Horton.
45e46615	7	* Message option added 5/31 by Mark Horton
98086f73 BJ	8	*/
	9	#include <stdio.h>
	10	#include <ctype.h>
	11	#include <vfont.h>
	12
	13	struct header FontHeader;
	14	struct dispatch disptable[256] ;
	15
	16	char IName[100];
	17	char * rdchar();
	18	long fbase;
	19
	20	char defascii[256];
	21	char *charswanted = defascii;
	22	int verbose;
	23	char charbits[4000];
45e46615 MH	24	int H, W, WB, base;
	25	int zoom = 1;
	26
	27	char msgout[24][80];
	28	int msgflag = 0;
	29	int curline, curcol; /* cursor, numbered from lower left corner */
	30	int minline=24, maxline=0, maxcol=0;
98086f73 BJ	31
	32	main(argc,argv)
	33	int argc;
	34	char **argv;
	35
	36	{
	37	int FID,i,j;
	38
2da2fdcf	39	while (argc > 1 && argv[1][0] == '-') {
98086f73 BJ	40	switch(argv[1][1]) {
	41	case 'v':
	42	verbose++;
	43	break;
2da2fdcf MH	44	case 'z':
	45	zoom = argv[1][2] - '0';
	46	break;
45e46615 MH	47	case 'm':
	48	msgflag = 1;
	49	zoom = 2;
	50	for (i=0; i<24; i++)
	51	for (j=0; j<80; j++)
	52	msgout[i][j] = ' ';
	53	curline = 5; curcol = 0;
	54	break;
98086f73 BJ	55	default:
	56	printf("Bad flag: %s\n", argv[1]);
	57	}
	58	argc--; argv++;
	59	}
	60	if (argc < 2) {
	61	fprintf(stderr,"Usage: %s filename", argv[0]);
	62	exit(2);
	63	}
	64
	65	for (i=0; i<128; i++)
	66	defascii[i] = i;
	67	if (argc >= 3)
	68	charswanted = argv[2];
	69
	70	sprintf(IName,"/usr/lib/vfont/%s",argv[1]);
	71	if ((FID = open(argv[1],0)) < 0)
	72	if ((FID = open(IName,0)) < 0) {
	73	printf("Can't find %s\n",argv[1]);
	74	exit(8);
	75	};
	76
	77	if (read(FID,&FontHeader,sizeof FontHeader) != sizeof FontHeader)
	78	error("Bad header in Font file.");
	79
	80	if (read(FID,&disptable[0],sizeof disptable) != sizeof disptable)
	81	error("Bad dispatch table in Font file");
	82
	83	fbase = sizeof FontHeader + sizeof disptable;
	84
	85	if (FontHeader.magic != 0436)
45e46615 MH	86	printf("Magic number %o wrong\n", FontHeader.magic);
	87	if (!msgflag) {
	88	printf("Font %s, ",argv[1]);
	89	printf("raster size %d, ",FontHeader.size);
	90	printf("max width %d, max height %d, xtend %d\n",
	91	FontHeader.maxx, FontHeader.maxy,FontHeader.xtend);
	92	printf("\n ASCII offset size left right up down width \n");
	93	}
98086f73 BJ	94
	95	for (i=0; i<256; i++) {
	96	j = charswanted[i];
	97	if (i>0 && j==0)
	98	break;
	99	if (disptable[j].nbytes != 0) {
45e46615 MH	100	if (!msgflag)
	101	printf(" %3o %2s %4d %4d %4d %4d %4d %4d %5d\n",
	102	j, rdchar(j),
	103	disptable[j].addr,
	104	disptable[j].nbytes,
	105	disptable[j].left,
	106	disptable[j].right,
	107	disptable[j].up,
	108	disptable[j].down,
	109	disptable[j].width);
	110	if (verbose \|\| msgflag) {
98086f73 BJ	111	int len = disptable[j].nbytes;
	112	int k, l, last;
	113
	114	lseek(FID, fbase+disptable[j].addr, 0);
	115	read(FID, charbits, len);
	116	H = (disptable[j].up) + (disptable[j].down);
	117	W = (disptable[j].left) + (disptable[j].right);
45e46615	118	base = disptable[j].up;
98086f73	119	WB = (W+7)/8;
2da2fdcf	120	if (zoom < 0) {
45e46615 MH	121	/*
	122	* Old 1 for 1 code. The aspect ratio
	123	* is awful, so we don't use it.
	124	*/
2da2fdcf MH	125	for (k=0; k<H; k++) {
	126	for (last=W-1; last >= 0; last--)
	127	if (fbit(k, last))
	128	break;
	129	for (l=0; l<=W-1; l++) {
	130	printf("%c", fbit(k,l)?'M':' ');
	131	}
	132	printf("\n");
98086f73 BJ	133	}
98086f73 BJ	134	printf("\n");
45e46615	135	} else {
2da2fdcf	136	shozoom();
45e46615 MH	137	if (msgflag) {
	138	k = disptable[j].width;
	139	if (zoom == 0) k *= 2;
	140	else if (zoom == 2) k /= 2;
	141	curcol += k;
	142	}
	143	}
98086f73 BJ	144	}
98086f73 BJ	145	}
2da2fdcf	146	}
45e46615 MH	147	if (msgflag) {
	148	for (i=maxline; i>=minline; i--) {
	149	for (j=0; j<maxcol; j++)
	150	putchar(msgout[i][j]);
	151	putchar('\n');
	152	}
	153	}
98086f73 BJ	154	}
	155
	156	error(string)
	157	char *string;
	158
	159	{
	160	printf("\nvfontinfo: %s\n",string);
	161	exit(8);
	162	};
	163
	164	char *rdchar(c)
	165	char c;
	166	{
	167	static char ret[3];
	168	ret[0] = isprint(c) ? ' ' : '^';
	169	ret[1] = isprint(c) ? c : c^0100;
	170	ret[2] = 0;
	171	return (ret);
	172	}
	173
	174	int
	175	fbit(row, col)
	176	int row, col;
	177	{
	178	int thisbyte, thisbit, ret;
	179
45e46615	180	if (row<0 \|\| row>=H \|\| col>=W) return(0);
98086f73 BJ	181	thisbyte = charbits[row*WB + (col>>3)] & 0xff;
	182	thisbit = 0x80 >> (col&7);
	183	ret = thisbyte & thisbit;
	184	return (ret != 0);
	185	}
2da2fdcf MH	186
	187
	188	/*
	189	The implementation would work like this:
	190	zoom level method
	191	0 2 chars/pixel, 1 is "[]", 0 is " ".
	192	1 2 pixels/char 2x1, using " " "," "'" "\|"
	193	2 8 pixels/char 4x2, using 16x16 table
	194	3 32 pixels/char 8x4, mapped into (2)
	195	4 and up similar, mapped into (2)
	196
	197	The 16x16 table maps a 4x2 pattern into a printing ascii character which
	198	most closely approximates that pattern, e.g. the pattern
	199	\|'
	200	''
	201	would be represented by the character "[". I have such a table worked out.
	202
	203	Grainer zoom levels would take the rule of reducing it into a smaller bitmap,
	204	or-ing the bits together. (e.g. level 3 would take a 2x2 chunk and map it
	205	into a single pixel: 0 if all 4 are 0, 1 otherwise.) These pixels would be
	206	displayed as in 2.
	207	*/
	208
	209	/*
	210	* graphtab: a table for rudimentary graphics on ordinary terminals.
	211	* For each 4x2 bit pattern of the form:
	212	* ae
	213	* bf
	214	* cg
	215	* dh
	216	* form the 4 bit quantities abcd and efgh and get table entry
	217	* graphtab[abcd][efgh]
	218	* to display in that character position.
	219	*
	220	* General philosophies: the dh bits are intended for descenders where
	221	* possible. Characters with radically different appearance on different
	222	* terminals (e.g. _ and ^) are avoided.
	223	*
	224	* Version 1.0, March 1981, Mark Horton.
	225	*/
	226
	227	char tab1[4] = {
	228	' ', ',', '\'', '\|'
	229	};
	230
	231	char graphtab[16][16] = {
	232	' ', '.', '.', ',', '.', ';', ':', 'j', '\'', ':', ':', ';', '\'', ';', '!', '\|',
	233	'.', '.', ':', ',', ';', ';', ';', 'j', '/', ';', ';', ';', 'j', 'j', 'j', 'j',
	234	'.', ',', '~', ',', 'r', '<', 'j', 'q', '/', ';', 'I', ';', '/', '\|', 'I', '\|',
	235	',', ',', 'r', 'x', '/', '/', '/', 'd', '/', '/', '/', 'd', '/', '/', '/', 'd',
	236	'.', ':', '\\', ';', '-', '=', 'v', 'q', '\'', ':', '<', '\|', '\'', ':', '+', '+',
	237	';', ';', '>', ';', '=', '=', 'g', 'g', '\'', ':', 'S', 'S', '/', '/', '/', '+',
	238	':', '\\', '\\', '\\', 'r', '<', 'w', 'q', '/', '<', '6', '4', '/', '/', 'd', '+',
	239	'l', 'L', '+', 'b', 'y', '[', 'p', 'g', '/', '<', '/', '6', '/', '/', '/', '+',
	240	'`', ':', ':', ';', '`', '\\', '\\', '\\', '"', ':', ':', ';', '`', '\\', 'Y', 'T',
	241	';', ';', ';', ';', '`', '2', '>', '\\', ':', '=', ';', ';', '?', '?', ']', ']',
	242	':', ';', ';', ';', '>', '2', '>', '\\', 'F', ';', 'O', ';', '7', '?', ']', '7',
	243	';', ';', ';', ';', '?', '2', '>', 'b', ';', ';', ';', ';', '?', '?', ']', '#',
	244	'\'', '\\', '\\', '\\', '`', '\\', '\\', '\\', '\'', '\'', '<', '5', '"', '"', 'v', 'q',
	245	';', '\\', '\\', '\\', '`', '=', '\\', '\\', '\'', '\'', '5', '5', '"', '?', 'g', 'g',
	246	'I', 'L', 'L', 'L', 'D', '\\', 'b', 'f', 'F', '[', '[', '[', 'P', '?', '#', 'M',
	247	'\|', '\|', '\|', '\|', '\|', '#', '+', '#', 'T', '[', 'F', 'F', 'P', '?', 'P', 'M'
	248	};
	249
250
251	shozoom()
252	{
253	register i;
254
255	if (zoom == 0)
256	sho0();
257	else if (zoom == 1)
258	sho1();
259	else if (zoom == 2)
260	sho2();
261	}
262
263	sho0()
264	{
265	register k,l;
266
267	for (k=0; k<H; k++) {
268	for (l=0; l<W; l++)
269	printf("%s", fbit(k,l)?"[]": " ");
270	printf("\n");
271	}
272	printf("\n");
273	}
274
275	sho1()
276	{
277	register i,k,l;
278
279	k = 0;
280	while (k < H) {
281	for(l=0;l<W;l++) {
282	i = fbit(k,l)*2 + fbit(k+1,l);
283	printf("%c",tab1[i]);
284	l++;
285	}
286	printf("\n");
287	k += 2;
288	}
289	printf("\n");
290	}
291
292	sho2()
293	{
294	register i,j,k,l;
45e46615 MH	295	int line = curline + (base+3)/4;
45e46615 MH	296	int col;
2da2fdcf	297
45e46615 MH	298	k = base%4;
45e46615 MH	299	if (k > 0) k -= 4;
2da2fdcf MH	300	while (k < H) {
2da2fdcf MH	301	l = 0;
45e46615	302	col = curcol;
2da2fdcf MH	303	while (l<W) {
	304	i = fbit(k,l)8 + fbit(k+1,l)4 +
	305	fbit(k+2,l)*2 + fbit(k+3,l);
	306	l++;
	307	j = fbit(k,l)8 + fbit(k+1,l)4 +
	308	fbit(k+2,l)*2 + fbit(k+3,l);
	309
45e46615 MH	310	if (msgflag) {
	311	if (graphtab[i][j] != ' ') {
	312	if (line > maxline) maxline = line;
	313	if (line < minline) minline = line;
	314	if (col > maxcol) maxcol = col;
	315	}
	316	msgout[line][col] = graphtab[i][j];
	317	} else
	318	printf("%c",graphtab[i][j]);
2da2fdcf	319	l++;
45e46615	320	col++;
2da2fdcf	321	}
45e46615 MH	322	if (msgflag == 0)
45e46615 MH	323	printf("\n");
2da2fdcf	324	k += 4;
45e46615	325	line--;
2da2fdcf	326	}
45e46615 MH	327	if (msgflag == 0)
45e46615 MH	328	printf("\n");
2da2fdcf	329	}