Skip to main content
Grumble, grumble... A post vanished in an instant while I was in the process of adding a comment... thank you, Anonymous, your suggested bitmap changes have been integrated. 

/*
 * display text using a 5x7 bitmap font in ASCII letters
 */
static unsigned char font [] [5] = { 
        { 0x00,0x00,0x00,0x00,0x00 },   //   0x20 32
        { 0x00,0x00,0x6f,0x00,0x00 },   // ! 0x21 33
        { 0x00,0x07,0x00,0x07,0x00 },   // " 0x22 34
        { 0x14,0x7f,0x14,0x7f,0x14 },   // # 0x23 35
//      { 0x00,0x07,0x04,0x1e,0x00 },   // $ 0x24 36
        { 0x2e,0x2a,0xff,0x2a,0x3a },   // $ 0x24 36
        { 0x23,0x13,0x08,0x64,0x62 },   // % 0x25 37
        { 0x36,0x49,0x56,0x20,0x50 },   // & 0x26 38
        { 0x00,0x00,0x07,0x00,0x00 },   // ' 0x27 39
        { 0x00,0x1c,0x22,0x41,0x00 },   // ( 0x28 40
        { 0x00,0x41,0x22,0x1c,0x00 },   // ) 0x29 41
        { 0x14,0x08,0x3e,0x08,0x14 },   // * 0x2a 42
        { 0x08,0x08,0x3e,0x08,0x08 },   // + 0x2b 43
        { 0x00,0x50,0x30,0x00,0x00 },   // , 0x2c 44
        { 0x08,0x08,0x08,0x08,0x08 },   // - 0x2d 45
        { 0x00,0x60,0x60,0x00,0x00 },   // . 0x2e 46
        { 0x20,0x10,0x08,0x04,0x02 },   // / 0x2f 47
        { 0x3e,0x51,0x49,0x45,0x3e },   // 0 0x30 48
        { 0x00,0x42,0x7f,0x40,0x00 },   // 1 0x31 49
        { 0x42,0x61,0x51,0x49,0x46 },   // 2 0x32 50
        { 0x21,0x41,0x45,0x4b,0x31 },   // 3 0x33 51
        { 0x18,0x14,0x12,0x7f,0x10 },   // 4 0x34 52
        { 0x27,0x45,0x45,0x45,0x39 },   // 5 0x35 53
        { 0x3c,0x4a,0x49,0x49,0x30 },   // 6 0x36 54
        { 0x01,0x71,0x09,0x05,0x03 },   // 7 0x37 55
        { 0x36,0x49,0x49,0x49,0x36 },   // 8 0x38 56
        { 0x06,0x49,0x49,0x29,0x1e },   // 9 0x39 57
        { 0x00,0x36,0x36,0x00,0x00 },   // : 0x3a 58
        { 0x00,0x56,0x36,0x00,0x00 },   // ; 0x3b 59
        { 0x08,0x14,0x22,0x41,0x00 },   // < 0x3c 60
        { 0x14,0x14,0x14,0x14,0x14 },   // = 0x3d 61
        { 0x00,0x41,0x22,0x14,0x08 },   // > 0x3e 62
        { 0x02,0x01,0x51,0x09,0x06 },   // ? 0x3f 63
        { 0x3e,0x41,0x5d,0x49,0x4e },   // @ 0x40 64
        { 0x7e,0x09,0x09,0x09,0x7e },   // A 0x41 65
        { 0x7f,0x49,0x49,0x49,0x36 },   // B 0x42 66
        { 0x3e,0x41,0x41,0x41,0x22 },   // C 0x43 67
        { 0x7f,0x41,0x41,0x41,0x3e },   // D 0x44 68
        { 0x7f,0x49,0x49,0x49,0x41 },   // E 0x45 69
        { 0x7f,0x09,0x09,0x09,0x01 },   // F 0x46 70
        { 0x3e,0x41,0x49,0x49,0x7a },   // G 0x47 71
        { 0x7f,0x08,0x08,0x08,0x7f },   // H 0x48 72
        { 0x00,0x41,0x7f,0x41,0x00 },   // I 0x49 73
        { 0x20,0x40,0x41,0x3f,0x01 },   // J 0x4a 74
        { 0x7f,0x08,0x14,0x22,0x41 },   // K 0x4b 75
        { 0x7f,0x40,0x40,0x40,0x40 },   // L 0x4c 76
        { 0x7f,0x02,0x0c,0x02,0x7f },   // M 0x4d 77
        { 0x7f,0x04,0x08,0x10,0x7f },   // N 0x4e 78
        { 0x3e,0x41,0x41,0x41,0x3e },   // O 0x4f 79
        { 0x7f,0x09,0x09,0x09,0x06 },   // P 0x50 80
        { 0x3e,0x41,0x51,0x21,0x5e },   // Q 0x51 81
        { 0x7f,0x09,0x19,0x29,0x46 },   // R 0x52 82
        { 0x46,0x49,0x49,0x49,0x31 },   // S 0x53 83
        { 0x01,0x01,0x7f,0x01,0x01 },   // T 0x54 84
        { 0x3f,0x40,0x40,0x40,0x3f },   // U 0x55 85
        { 0x0f,0x30,0x40,0x30,0x0f },   // V 0x56 86
        { 0x3f,0x40,0x30,0x40,0x3f },   // W 0x57 87
        { 0x63,0x14,0x08,0x14,0x63 },   // X 0x58 88
        { 0x07,0x08,0x70,0x08,0x07 },   // Y 0x59 89
        { 0x61,0x51,0x49,0x45,0x43 },   // Z 0x5a 90
//      { 0x3c,0x4a,0x49,0x29,0x1e },   // [ 0x5b 91
        { 0x00,0x00,0x7f,0x41,0x00 },   // [ 0x5b 91
        { 0x02,0x04,0x08,0x10,0x20 },   // \ 0x5c 92
        { 0x00,0x41,0x7f,0x00,0x00 },   // ] 0x5d 93
        { 0x04,0x02,0x01,0x02,0x04 },   // ^ 0x5e 94
        { 0x40,0x40,0x40,0x40,0x40 },   // _ 0x5f 95
        { 0x00,0x00,0x03,0x04,0x00 },   // ` 0x60 96
        { 0x20,0x54,0x54,0x54,0x78 },   // a 0x61 97
        { 0x7f,0x48,0x44,0x44,0x38 },   // b 0x62 98
//      { 0x38,0x44,0x44,0x44,0x20 },   // c 0x63 99
        { 0x38,0x44,0x44,0x44,0x44 },   // c 0x63 99
        { 0x38,0x44,0x44,0x48,0x7f },   // d 0x64 100
        { 0x38,0x54,0x54,0x54,0x18 },   // e 0x65 101
        { 0x08,0x7e,0x09,0x01,0x02 },   // f 0x66 102
        { 0x0c,0x52,0x52,0x52,0x3e },   // g 0x67 103
        { 0x7f,0x08,0x04,0x04,0x78 },   // h 0x68 104
        { 0x00,0x44,0x7d,0x40,0x00 },   // i 0x69 105
        { 0x20,0x40,0x44,0x3d,0x00 },   // j 0x6a 106
        { 0x00,0x7f,0x10,0x28,0x44 },   // k 0x6b 107
        { 0x00,0x41,0x7f,0x40,0x00 },   // l 0x6c 108
        { 0x7c,0x04,0x18,0x04,0x78 },   // m 0x6d 109
        { 0x7c,0x08,0x04,0x04,0x78 },   // n 0x6e 110
        { 0x38,0x44,0x44,0x44,0x38 },   // o 0x6f 111
        { 0x7c,0x14,0x14,0x14,0x08 },   // p 0x70 112
//      { 0x08,0x14,0x14,0x18,0x7c },   // q 0x71 113
        { 0x08,0x14,0x14,0x14,0x7c },   // q 0x71 113
        { 0x7c,0x08,0x04,0x04,0x08 },   // r 0x72 114
        { 0x48,0x54,0x54,0x54,0x20 },   // s 0x73 115
        { 0x04,0x3f,0x44,0x40,0x20 },   // t 0x74 116
        { 0x3c,0x40,0x40,0x20,0x7c },   // u 0x75 117
        { 0x1c,0x20,0x40,0x20,0x1c },   // v 0x76 118
        { 0x3c,0x40,0x30,0x40,0x3c },   // w 0x77 119
        { 0x44,0x28,0x10,0x28,0x44 },   // x 0x78 120
        { 0x0c,0x50,0x50,0x50,0x3c },   // y 0x79 121
        { 0x44,0x64,0x54,0x4c,0x44 },   // z 0x7a 122
        { 0x00,0x08,0x36,0x41,0x41 },   // { 0x7b 123
        { 0x00,0x00,0x7f,0x00,0x00 },   // | 0x7c 124
        { 0x41,0x41,0x36,0x08,0x00 },   // } 0x7d 125
//      { 0x04,0x02,0x04,0x08,0x04 },   // ~ 0x7e 126
        { 0x08,0x0c,0x08,0x18,0x08 }    // ~ 0x7e 126
};

int main (int argc, char ** argv) {
        int arg, chr, col, shift;
        char c, * p;
        unsigned char * bits;

        for (arg = 1; arg < argc; ++ arg) {
                for (shift = 1; shift < 128; shift <<= 1) {
                        p = argv [arg];
                        while (c = * p ++) {
                                bits = font [c - ' '];
                                for (col = 0; col < 5; col ++) {
                                        putchar ((bits [col] & shift) ? '#' : '_');
                                }
                                putchar (' ');
                        }
                        putchar ('\n');
                }
                putchar ('\n');
        }
        return 0;
};

/* end: font.c */

Comments

Unknown said…
I don't get this.
18 September, 2012 14:56
austux said…
My original response to the Anonymous commenter vanished within seconds of being posted.
19 September, 2012 15:08
austux said…
(this is WRT the “5x7 text dot-matrix” post a few before this one)
19 September, 2012 15:13
Post a Comment

Popular posts from this blog

An Open and Shut response to Darl McBride

Hi, Darl. I see you’re being dishonest again . It’d be really nice if you could shoot straight for a change, but I think Kerry’s Dad will be selling snowplows in Hell first. Three years ago, when I first joined The SCO Group, we focused the company on the area that was most profitable and provided the most benefit to customers, investors, resellers, developers and employees: UNIX No, you focused the company on suing people, which was most profitable to lawyers and provided some golden parachutes for your buddies. People thought we were crazy. They were right. But since SCO owns the UNIX operating system The SCO Group does not own UNIX® in any sense of the word. The Open Group owns the UNIX trademark, definition and other rights , The SCO Group does not. The SCO Group doesn’t even own the UnixWare® or OpenServer® code, the rights to those are held by Novell and TSG use them only by permission and under certain conditions — which they have violate...
5 comments
Read more

5x7 text dot-matrix in five minutes...

This is a fairly primitive toy I threw together today for a specific purpose, published in case it’s any use to others... feed it a list of words as command arguments, which it will then display as a 5x7 ASCII dotmatrix with ‘#’ as a dot & ‘_’ as a blank. /* * display text using a 5x7 bitmap font in ASCII letters */ static unsigned char font [] [5] = { { 0x00,0x00,0x00,0x00,0x00 }, // 0x20 32 { 0x00,0x00,0x6f,0x00,0x00 }, // ! 0x21 33 { 0x00,0x07,0x00,0x07,0x00 }, // " 0x22 34 { 0x14,0x7f,0x14,0x7f,0x14 }, // # 0x23 35 { 0x00,0x07,0x04,0x1e,0x00 }, // $ 0x24 36 { 0x23,0x13,0x08,0x64,0x62 }, // % 0x25 37 { 0x36,0x49,0x56,0x20,0x50 }, // & 0x26 38 { 0x00,0x00,0x07,0x00,0x00 }, // ' 0x27 39 { 0x00,0x1c,0x22,0x41,0x00 }, // ( 0x28 40 { 0x00,0x41,0x22,0x1c,0x00 }, // ) 0x29 41 { 0x14,0x08,0x3e,0x08,0x14 }, // * 0x2a 42 { 0x08,0x08,0x3e,0x08,0x08 }, ...
5 comments
Read more

Citizens Augmenting Government Waste

So here we have Microsoft-funded “ Citizens Against Government Waste ” (CAGW) heavily criticising Massachusetts’s switch to an internationally accepted and open document standard (not open source, open standard — but I seem to remember a large monopolist who frequently confuses the two when it suits them). I remember CAGW, they were the organisation who had dead people writing in to support Microsoft in court a few years ago — thanks to sbergman27 for the link — is this “the dead hand of CAGW” at work again? Let’s follow the money and find out. Who stands to lose the most money and control if Massachusetts switches to an unencumbered document format? Big surprise, it’s CAGW sponsor Microsoft, through their dominant MS-Office suite. Why did CAGW list Microsoft’s suite last, after two other much-less-dominant examples which are waning anyway? If you’re inclined to wallow in additional irony, consider that at leas...
Post a Comment
Read more