1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2009, 2013 The FreeBSD Foundation 5 * All rights reserved. 6 * 7 * This software was developed by Ed Schouten under sponsorship from the 8 * FreeBSD Foundation. 9 * 10 * Portions of this software were developed by Oleksandr Rybalko 11 * under sponsorship from the FreeBSD Foundation. 12 * 13 * Redistribution and use in source and binary forms, with or without 14 * modification, are permitted provided that the following conditions 15 * are met: 16 * 1. Redistributions of source code must retain the above copyright 17 * notice, this list of conditions and the following disclaimer. 18 * 2. Redistributions in binary form must reproduce the above copyright 19 * notice, this list of conditions and the following disclaimer in the 20 * documentation and/or other materials provided with the distribution. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * $FreeBSD$ 35 */ 36 37 #ifndef _SYS_FONT_H_ 38 #define _SYS_FONT_H_ 39 40 #include <sys/queue.h> 41 42 /* 43 * Fonts. 44 * 45 * Remapping tables are used to map Unicode points to glyphs. They need 46 * to be sorted, because vtfont_lookup() performs a binary search. Each 47 * font has two remapping tables, for normal and bold. When a character 48 * is not present in bold, it uses a normal glyph. When no glyph is 49 * available, it uses glyph 0, which is normally equal to U+FFFD. 50 */ 51 52 enum vfnt_map_type { 53 VFNT_MAP_NORMAL = 0, /* Normal font. */ 54 VFNT_MAP_NORMAL_RIGHT, /* Normal font right hand. */ 55 VFNT_MAP_BOLD, /* Bold font. */ 56 VFNT_MAP_BOLD_RIGHT, /* Bold font right hand. */ 57 VFNT_MAPS /* Number of maps. */ 58 }; 59 60 struct vfnt_map { 61 uint32_t vfm_src; 62 uint16_t vfm_dst; 63 uint16_t vfm_len; 64 } __packed; 65 typedef struct vfnt_map vfnt_map_t; 66 67 struct vt_font { 68 vfnt_map_t *vf_map[VFNT_MAPS]; 69 uint8_t *vf_bytes; 70 uint32_t vf_height; 71 uint32_t vf_width; 72 uint32_t vf_map_count[VFNT_MAPS]; 73 uint32_t vf_refcount; 74 }; 75 76 typedef struct vt_font_bitmap_data { 77 uint32_t vfbd_width; 78 uint32_t vfbd_height; 79 uint32_t vfbd_compressed_size; 80 uint32_t vfbd_uncompressed_size; 81 uint8_t *vfbd_compressed_data; 82 struct vt_font *vfbd_font; 83 } vt_font_bitmap_data_t; 84 85 typedef enum { 86 FONT_AUTO, 87 FONT_MANUAL, 88 FONT_BOOT 89 } FONT_FLAGS; 90 91 struct fontlist { 92 char *font_name; 93 FONT_FLAGS font_flags; 94 vt_font_bitmap_data_t *font_data; 95 vt_font_bitmap_data_t *(*font_load)(char *); 96 STAILQ_ENTRY(fontlist) font_next; 97 }; 98 99 #define BORDER_PIXELS 10 /* space from screen border */ 100 typedef STAILQ_HEAD(font_list, fontlist) font_list_t; 101 102 #define FONT_HEADER_MAGIC "VFNT0002" 103 struct font_header { 104 uint8_t fh_magic[8]; 105 uint8_t fh_width; 106 uint8_t fh_height; 107 uint16_t fh_pad; 108 uint32_t fh_glyph_count; 109 uint32_t fh_map_count[VFNT_MAPS]; 110 } __packed; 111 112 #endif /* !_SYS_FONT_H_ */ 113