125 lines
5.0 KiB
C
125 lines
5.0 KiB
C
#pragma once
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#include <stdbool.h>
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#include <stdint.h>
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// 5x7 font, ASCII 0x20..0x7F (printable chars + DEL placeholder)
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static const uint8_t font5x7[96][5] = {
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{0x00, 0x00, 0x00, 0x00, 0x00}, // 0x20 ' '
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{0x00, 0x00, 0x5F, 0x00, 0x00}, // 0x21 '!'
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{0x00, 0x07, 0x00, 0x07, 0x00}, // 0x22 '"'
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{0x14, 0x7F, 0x14, 0x7F, 0x14}, // 0x23 '#'
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{0x24, 0x2A, 0x7F, 0x2A, 0x12}, // 0x24 '$'
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{0x23, 0x13, 0x08, 0x64, 0x62}, // 0x25 '%'
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{0x36, 0x49, 0x55, 0x22, 0x50}, // 0x26 '&'
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{0x00, 0x05, 0x03, 0x00, 0x00}, // 0x27 '\''
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{0x00, 0x1C, 0x22, 0x41, 0x00}, // 0x28 '('
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{0x00, 0x41, 0x22, 0x1C, 0x00}, // 0x29 ')'
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{0x14, 0x08, 0x3E, 0x08, 0x14}, // 0x2A '*'
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{0x08, 0x08, 0x3E, 0x08, 0x08}, // 0x2B '+'
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{0x00, 0x50, 0x30, 0x00, 0x00}, // 0x2C ','
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{0x08, 0x08, 0x08, 0x08, 0x08}, // 0x2D '-'
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{0x00, 0x60, 0x60, 0x00, 0x00}, // 0x2E '.'
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{0x20, 0x10, 0x08, 0x04, 0x02}, // 0x2F '/'
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{0x3E, 0x51, 0x49, 0x45, 0x3E}, // 0x30 '0'
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{0x00, 0x42, 0x7F, 0x40, 0x00}, // 0x31 '1'
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{0x42, 0x61, 0x51, 0x49, 0x46}, // 0x32 '2'
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{0x21, 0x41, 0x45, 0x4B, 0x31}, // 0x33 '3'
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{0x18, 0x14, 0x12, 0x7F, 0x10}, // 0x34 '4'
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{0x27, 0x45, 0x45, 0x45, 0x39}, // 0x35 '5'
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{0x3C, 0x4A, 0x49, 0x49, 0x30}, // 0x36 '6'
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{0x01, 0x71, 0x09, 0x05, 0x03}, // 0x37 '7'
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{0x36, 0x49, 0x49, 0x49, 0x36}, // 0x38 '8'
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{0x06, 0x49, 0x49, 0x29, 0x1E}, // 0x39 '9'
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{0x00, 0x36, 0x36, 0x00, 0x00}, // 0x3A ':'
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{0x00, 0x56, 0x36, 0x00, 0x00}, // 0x3B ';'
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{0x08, 0x14, 0x22, 0x41, 0x00}, // 0x3C '<'
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{0x14, 0x14, 0x14, 0x14, 0x14}, // 0x3D '='
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{0x00, 0x41, 0x22, 0x14, 0x08}, // 0x3E '>'
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{0x02, 0x01, 0x51, 0x09, 0x06}, // 0x3F '?'
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{0x32, 0x49, 0x79, 0x41, 0x3E}, // 0x40 '@'
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{0x7E, 0x11, 0x11, 0x11, 0x7E}, // 0x41 'A'
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{0x7F, 0x49, 0x49, 0x49, 0x36}, // 0x42 'B'
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{0x3E, 0x41, 0x41, 0x41, 0x22}, // 0x43 'C'
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{0x7F, 0x41, 0x41, 0x22, 0x1C}, // 0x44 'D'
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{0x7F, 0x49, 0x49, 0x49, 0x41}, // 0x45 'E'
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{0x7F, 0x09, 0x09, 0x09, 0x01}, // 0x46 'F'
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{0x3E, 0x41, 0x49, 0x49, 0x7A}, // 0x47 'G'
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{0x7F, 0x08, 0x08, 0x08, 0x7F}, // 0x48 'H'
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{0x00, 0x41, 0x7F, 0x41, 0x00}, // 0x49 'I'
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{0x20, 0x40, 0x41, 0x3F, 0x01}, // 0x4A 'J'
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{0x7F, 0x08, 0x14, 0x22, 0x41}, // 0x4B 'K'
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{0x7F, 0x40, 0x40, 0x40, 0x40}, // 0x4C 'L'
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{0x7F, 0x02, 0x0C, 0x02, 0x7F}, // 0x4D 'M'
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{0x7F, 0x04, 0x08, 0x10, 0x7F}, // 0x4E 'N'
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{0x3E, 0x41, 0x41, 0x41, 0x3E}, // 0x4F 'O'
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{0x7F, 0x09, 0x09, 0x09, 0x06}, // 0x50 'P'
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{0x3E, 0x41, 0x51, 0x21, 0x5E}, // 0x51 'Q'
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{0x7F, 0x09, 0x19, 0x29, 0x46}, // 0x52 'R'
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{0x46, 0x49, 0x49, 0x49, 0x31}, // 0x53 'S'
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{0x01, 0x01, 0x7F, 0x01, 0x01}, // 0x54 'T'
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{0x3F, 0x40, 0x40, 0x40, 0x3F}, // 0x55 'U'
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{0x1F, 0x20, 0x40, 0x20, 0x1F}, // 0x56 'V'
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{0x3F, 0x40, 0x38, 0x40, 0x3F}, // 0x57 'W'
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{0x63, 0x14, 0x08, 0x14, 0x63}, // 0x58 'X'
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{0x07, 0x08, 0x70, 0x08, 0x07}, // 0x59 'Y'
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{0x61, 0x51, 0x49, 0x45, 0x43}, // 0x5A 'Z'
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{0x00, 0x7F, 0x41, 0x41, 0x00}, // 0x5B '['
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{0x02, 0x04, 0x08, 0x10, 0x20}, // 0x5C '\\'
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{0x00, 0x41, 0x41, 0x7F, 0x00}, // 0x5D ']'
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{0x04, 0x02, 0x01, 0x02, 0x04}, // 0x5E '^'
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{0x40, 0x40, 0x40, 0x40, 0x40}, // 0x5F '_'
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{0x00, 0x01, 0x02, 0x04, 0x00}, // 0x60 '`'
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{0x20, 0x54, 0x54, 0x54, 0x78}, // 0x61 'a'
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{0x7F, 0x48, 0x44, 0x44, 0x38}, // 0x62 'b'
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{0x38, 0x44, 0x44, 0x44, 0x20}, // 0x63 'c'
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{0x38, 0x44, 0x44, 0x48, 0x7F}, // 0x64 'd'
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{0x38, 0x54, 0x54, 0x54, 0x18}, // 0x65 'e'
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{0x08, 0x7E, 0x09, 0x01, 0x02}, // 0x66 'f'
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{0x0C, 0x52, 0x52, 0x52, 0x3E}, // 0x67 'g'
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{0x7F, 0x08, 0x04, 0x04, 0x78}, // 0x68 'h'
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{0x00, 0x44, 0x7D, 0x40, 0x00}, // 0x69 'i'
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{0x20, 0x40, 0x44, 0x3D, 0x00}, // 0x6A 'j'
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{0x7F, 0x10, 0x28, 0x44, 0x00}, // 0x6B 'k'
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{0x00, 0x41, 0x7F, 0x40, 0x00}, // 0x6C 'l'
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{0x7C, 0x04, 0x18, 0x04, 0x78}, // 0x6D 'm'
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{0x7C, 0x08, 0x04, 0x04, 0x78}, // 0x6E 'n'
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{0x38, 0x44, 0x44, 0x44, 0x38}, // 0x6F 'o'
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{0x7C, 0x14, 0x14, 0x14, 0x08}, // 0x70 'p'
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{0x08, 0x14, 0x14, 0x18, 0x7C}, // 0x71 'q'
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{0x7C, 0x08, 0x04, 0x04, 0x08}, // 0x72 'r'
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{0x48, 0x54, 0x54, 0x54, 0x20}, // 0x73 's'
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{0x04, 0x3F, 0x44, 0x40, 0x20}, // 0x74 't'
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{0x3C, 0x40, 0x40, 0x20, 0x7C}, // 0x75 'u'
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{0x1C, 0x20, 0x40, 0x20, 0x1C}, // 0x76 'v'
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{0x3C, 0x40, 0x30, 0x40, 0x3C}, // 0x77 'w'
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{0x44, 0x28, 0x10, 0x28, 0x44}, // 0x78 'x'
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{0x0C, 0x50, 0x50, 0x50, 0x3C}, // 0x79 'y'
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{0x44, 0x64, 0x54, 0x4C, 0x44}, // 0x7A 'z'
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{0x00, 0x08, 0x36, 0x41, 0x00}, // 0x7B '{'
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{0x00, 0x00, 0x7F, 0x00, 0x00}, // 0x7C '|'
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{0x00, 0x41, 0x36, 0x08, 0x00}, // 0x7D '}'
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{0x08, 0x04, 0x08, 0x10, 0x08}, // 0x7E '~'
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{0x7F, 0x41, 0x41, 0x41, 0x7F}, // 0x7F DEL placeholder
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};
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static inline bool font5x7_get(char c, uint8_t out[5])
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{
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if (out == NULL) {
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return false;
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}
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uint8_t uc = (uint8_t)c;
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if (uc < 0x20 || uc > 0x7F) {
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return false;
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}
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const uint8_t *glyph = font5x7[uc - 0x20];
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out[0] = glyph[0];
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out[1] = glyph[1];
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out[2] = glyph[2];
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out[3] = glyph[3];
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out[4] = glyph[4];
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return true;
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}
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