1 /* 2 * Common font-related functions. 3 * 4 * Copyright (C) 2018 Paul Boddie <paul@boddie.org.uk> 5 * 6 * This program is free software: you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation, either version 3 of the License, or 9 * (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program. If not, see <http://www.gnu.org/licenses/>. 18 */ 19 20 #ifndef __FONT_H__ 21 #define __FONT_H__ 22 23 #include <stdint.h> 24 25 26 27 /* Character definition structure. */ 28 29 typedef struct 30 { 31 uint8_t width; 32 uint8_t height; 33 uint8_t data[]; 34 35 } char_definition_t; 36 37 /* Font configuration type. */ 38 39 typedef struct 40 { 41 char_definition_t *chars; 42 uint32_t *table; 43 uint32_t base; 44 uint32_t limit; 45 46 } font_config_t; 47 48 49 50 /* Access functions. */ 51 52 char_definition_t *get_char_definition(font_config_t *cfg, char c); 53 54 int write_char(display_config_t *cfg, font_config_t *fcfg, char c, 55 int x, int y, uint8_t colour); 56 57 #endif /* __FONT_H__ */