Prepare support to be able to handle font data in loader, consolidate data structures to sys/font.h and update vtfontcvt. vtfontcvt update is about to output set of glyphs in form of C source, the implementation does allow to output compressed or uncompressed font bitmaps. Reviewed by: bcr Differential Revision: https://reviews.freebsd.org/D24189
113 lines
3.5 KiB
C
113 lines
3.5 KiB
C
/*-
|
|
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
|
|
*
|
|
* Copyright (c) 2009, 2013 The FreeBSD Foundation
|
|
* All rights reserved.
|
|
*
|
|
* This software was developed by Ed Schouten under sponsorship from the
|
|
* FreeBSD Foundation.
|
|
*
|
|
* Portions of this software were developed by Oleksandr Rybalko
|
|
* under sponsorship from the FreeBSD Foundation.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#ifndef _SYS_FONT_H_
|
|
#define _SYS_FONT_H_
|
|
|
|
#include <sys/queue.h>
|
|
|
|
/*
|
|
* Fonts.
|
|
*
|
|
* Remapping tables are used to map Unicode points to glyphs. They need
|
|
* to be sorted, because vtfont_lookup() performs a binary search. Each
|
|
* font has two remapping tables, for normal and bold. When a character
|
|
* is not present in bold, it uses a normal glyph. When no glyph is
|
|
* available, it uses glyph 0, which is normally equal to U+FFFD.
|
|
*/
|
|
|
|
enum vfnt_map_type {
|
|
VFNT_MAP_NORMAL = 0, /* Normal font. */
|
|
VFNT_MAP_NORMAL_RIGHT, /* Normal font right hand. */
|
|
VFNT_MAP_BOLD, /* Bold font. */
|
|
VFNT_MAP_BOLD_RIGHT, /* Bold font right hand. */
|
|
VFNT_MAPS /* Number of maps. */
|
|
};
|
|
|
|
struct vfnt_map {
|
|
uint32_t vfm_src;
|
|
uint16_t vfm_dst;
|
|
uint16_t vfm_len;
|
|
} __packed;
|
|
typedef struct vfnt_map vfnt_map_t;
|
|
|
|
struct vt_font {
|
|
vfnt_map_t *vf_map[VFNT_MAPS];
|
|
uint8_t *vf_bytes;
|
|
uint32_t vf_height;
|
|
uint32_t vf_width;
|
|
uint32_t vf_map_count[VFNT_MAPS];
|
|
uint32_t vf_refcount;
|
|
};
|
|
|
|
typedef struct vt_font_bitmap_data {
|
|
uint32_t vfbd_width;
|
|
uint32_t vfbd_height;
|
|
uint32_t vfbd_compressed_size;
|
|
uint32_t vfbd_uncompressed_size;
|
|
uint8_t *vfbd_compressed_data;
|
|
struct vt_font *vfbd_font;
|
|
} vt_font_bitmap_data_t;
|
|
|
|
typedef enum {
|
|
FONT_AUTO,
|
|
FONT_MANUAL,
|
|
FONT_BOOT
|
|
} FONT_FLAGS;
|
|
|
|
struct fontlist {
|
|
char *font_name;
|
|
FONT_FLAGS font_flags;
|
|
vt_font_bitmap_data_t *font_data;
|
|
vt_font_bitmap_data_t *(*font_load)(char *);
|
|
STAILQ_ENTRY(fontlist) font_next;
|
|
};
|
|
|
|
#define BORDER_PIXELS 10 /* space from screen border */
|
|
typedef STAILQ_HEAD(font_list, fontlist) font_list_t;
|
|
|
|
#define FONT_HEADER_MAGIC "VFNT0002"
|
|
struct font_header {
|
|
uint8_t fh_magic[8];
|
|
uint8_t fh_width;
|
|
uint8_t fh_height;
|
|
uint16_t fh_pad;
|
|
uint32_t fh_glyph_count;
|
|
uint32_t fh_map_count[VFNT_MAPS];
|
|
} __packed;
|
|
|
|
#endif /* !_SYS_FONT_H_ */
|