+#ifndef lint
+static char sccsid[] = "@(#)vfontinfo.c 4.3 (Berkeley) 7/16/83";
+#endif
+
+/* 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");
+ for (i = strlen(argv[1]) + 1; i > 0; --i)
+ printf(" ");
+ printf("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("%s %3o %2s %4d %4d %4d %4d %4d %4d %5d\n",
+ argv[1],
+ 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 k,l;
+
+ k = 0;
+ for (k = 0; k <= H; k += 2) {
+ for(l=0;l<W;l++) putchar(tab1[(fbit(k,l) << 1) | fbit(k+1,l)]);
+ putchar('\n');
+ }
+ putchar('\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");
+}
projects / unix-history / commitdiff