Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/chips/build_font.c
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1 /* 2 * Mach Operating System 3 * Copyright (c) 1991,1990,1989 Carnegie Mellon University 4 * All Rights Reserved. 5 * 6 * Permission to use, copy, modify and distribute this software and its 7 * documentation is hereby granted, provided that both the copyright 8 * notice and this permission notice appear in all copies of the 9 * software, derivative works or modified versions, and any portions 10 * thereof, and that both notices appear in supporting documentation. 11 * 12 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 13 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR 14 * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 15 * 16 * Carnegie Mellon requests users of this software to return to 17 * 18 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU 19 * School of Computer Science 20 * Carnegie Mellon University 21 * Pittsburgh PA 15213-3890 22 * 23 * any improvements or extensions that they make and grant Carnegie Mellon 24 * the rights to redistribute these changes. 25 */ 26 /* 27 * HISTORY 28 * $Log: build_font.c,v $ 29 * Revision 2.6 91/06/19 11:46:19 rvb 30 * File moved here from mips/PMAX since it tries to be generic; 31 * it is used on the PMAX and the Vax3100. 32 * [91/06/04 rvb] 33 * 34 * Revision 2.5 91/05/14 17:19:54 mrt 35 * Correcting copyright 36 * 37 * Revision 2.4 91/02/05 17:40:00 mrt 38 * Added author notices 39 * [91/02/04 11:12:16 mrt] 40 * 41 * Changed to use new Mach copyright 42 * [91/02/02 12:09:59 mrt] 43 * 44 * Revision 2.3 90/12/05 23:30:32 af 45 * Add Log entry to output file so that it can be RCS-ed. 46 * [90/12/03 23:11:04 af] 47 * 48 * Revision 2.1.1.1 90/11/01 03:11:00 af 49 * Created. 50 * [90/10/07 af] 51 */ 52 /* 53 * File: build_font.c 54 * Author: Alessandro Forin, Carnegie Mellon University 55 * Date: 10/90 56 * 57 * 58 * Takes a font description file and generates a C source 59 * appropriate for use as kernel font on mips/vax boxes. 60 * This basically means encoding and mirroring the bitmaps. 61 */ 62 63 #include <stdio.h> 64 65 main(argc,argv) 66 char **argv; 67 { 68 int fd; 69 FILE *fout; 70 int i, j, k, n, l; 71 int first, last; 72 char *fname = "kernel_font.data"; 73 char buf[16*9]; 74 int verbose = 0; 75 76 if (argc > 1 && argv[1][0] == '+') 77 verbose++, argc--, argv++; 78 79 first = 0; 80 last = 190; /* 8-bit ASCII, offset by 'space' */ 81 if (argc > 1) { 82 first = atoi(argv[1]); 83 last = first + 1; 84 } 85 if (argc > 2) 86 last = atoi(argv[2]) + 1; 87 if (argc > 3) 88 fname = argv[3]; 89 90 fd = open(fname, 0, 0); 91 fout = fopen("kernel_font.c", "w"); 92 93 fprintf(fout, "/* \n\ 94 * Mach Operating System\n\ 95 * Copyright (c) 1989 Carnegie-Mellon University\n\ 96 * All rights reserved. The CMU software License Agreement specifies\n\ 97 * the terms and conditions for use and redistribution.\n\ 98 */\n\ 99 /*\n\ 100 * THIS FILE WAS GENERATED BY %s FROM %s\n\ 101 * IF YOU NEED TO, BE SURE YOU EDIT THE REAL THING!\n\ 102 */\n\ 103 /*\n\ 104 * HISTORY\n\ 105 * 3-Sep-90 Alessandro Forin (af) at Carnegie-Mellon University\n\ 106 * Created.\n\ 107 * $Log: build_font.c,v $ 108 * Revision 2.6 91/06/19 11:46:19 rvb 109 * File moved here from mips/PMAX since it tries to be generic; 110 * it is used on the PMAX and the Vax3100. 111 * [91/06/04 rvb] 112 * 113 * Revision 2.5.1.1 91/06/06 14:08:04 rvb 114 * File moved here from mips/PMAX since it tries to be generic; 115 * it is used on the PMAX and the Vax3100. 116 * [91/06/04 rvb] 117 * 118 * Revision 2.5 91/05/14 17:19:54 mrt 119 * Correcting copyright 120 * 121 * Revision 2.4 91/02/05 17:40:00 mrt 122 * Added author notices 123 * [91/02/04 11:12:16 mrt] 124 * 125 * Changed to use new Mach copyright 126 * [91/02/02 12:09:59 mrt] 127 * 128 * Revision 2.3.1.2 91/02/04 11:12:16 mrt 129 * Added author notices 130 * 131 * Revision 2.3.1.1 91/02/02 12:09:59 mrt 132 * Changed to use new Mach copyright 133 * 134 * Revision 2.3 90/12/05 23:30:32 af 135 * Add Log entry to output file so that it can be RCS-ed. 136 * [90/12/03 23:11:04 af] 137 * 138 * Revision 2.1.2.1 90/12/03 23:11:04 af 139 * Add Log entry to output file so that it can be RCS-ed. 140 * 141 * Revision 2.1.1.2 90/11/01 03:14:32 af 142 * Add Log entry to output file so that it can be RCS-ed. 143 * \n\ 144 */\n\ 145 \n\ 146 /*\n\ 147 * Object:\n\ 148 * kfont_7x14 EXPORTED array\n\ 149 *\n\ 150 * Kernel font for printable ASCII chars\n\ 151 *\n\ 152 * The smallest index in this array corresponds to a\n\ 153 * space. So, we start at 0x20 in the ascii table.\n\ 154 * Note that glyphs are mirrored (byteorder, I think)\n\ 155 * the commented bitmap shows how they really look like\n\ 156 */\n\ 157 \n\ 158 unsigned char kfont_7x14[] = {\n", argv[0], fname); 159 160 skip_comments: 161 read(fd, buf, 1); 162 if (buf[0] == '#') { 163 do 164 read(fd, buf, 1); 165 while (buf[0] != '\n'); 166 goto skip_comments; 167 } 168 lseek(fd, -1, 1); /* put char back */ 169 170 /* if must skip some */ 171 for (l = 0; l < first; l++) 172 read(fd, buf, 2+(9*15)); 173 174 /* scan for real now */ 175 for (i = first; i < last; i++) { 176 /* read one full glyph */ 177 if (read(fd, buf, 2+(9*15)) < 0) 178 break; 179 if (verbose) 180 printf("Character '%c':\n\t", buf[0]); 181 /* index and char itself in comments */ 182 fprintf(fout, "/* %3x '%c' */\n", i, 0x20+i); 183 184 /* encode and mirror each one of the 15 scanlines */ 185 for (n = 0; n < 15; n++) { 186 unsigned char cc[8], swap = 0; 187 /* 8 bits per scanline */ 188 for (k = 2+(n*9), j = 0; j < 8; k++, j++) { 189 if (verbose) 190 printf("%c", (buf[k] == '1') ? '@' : ' '); 191 swap = ((buf[k] - '') << 7) | (swap >> 1); 192 cc[j] = buf[k]; 193 } 194 fprintf(fout,"\t/* %8s */\t%#2x,\n", cc, (unsigned char)swap); 195 if (verbose) 196 printf("\n\t"); 197 } 198 } 199 fprintf(fout, "};\n"); 200 fclose(fout); 201 }
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