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      1 /* 	$NetBSD: wsfont.h,v 1.27 2021/12/24 18:12:58 jmcneill Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1999, 2000, 2001, 2002 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Andrew Doran.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #ifndef _WSFONT_H_
     33 #define _WSFONT_H_ 1
     34 
     35 #define WSFONT_FLAGS_MASK	0x7f000000
     36 #define WSFONT_FLAG_OPT		0x01000000	/* use alternate font */
     37 #define WSFONT_GLYPH(c, font)	((uint8_t *)font->data + \
     38 		((c) - font->firstchar) * font->stride * font->fontheight)
     39 #define FONT_IS_ALPHA(f) ((f)->fontwidth <= (f)->stride)
     40 
     41 /*
     42  * Example:
     43  *
     44  *	struct wsdisplay_font *font;
     45  *	int cookie;
     46  *
     47  *	cookie = wsfont_find(NULL, 8, 16, 0, WSDISPLAY_FONTORDER_L2R,
     48  *          WSDISPLAY_FONTORDER_R2L);
     49  *      if (cookie <= 0)
     50  *		panic("unable to get 8x16 font");
     51  *
     52  *	if (wsfont_lock(cookie, &font))
     53  *		panic("unable to lock font");
     54  *
     55  *	... do stuff ...
     56  *
     57  *	wsfont_unlock(cookie);
     58  */
     59 
     60 struct wsdisplay_font;
     61 
     62 void	wsfont_init(void);
     63 int	wsfont_matches(struct wsdisplay_font *, const char *, int, int, int, int);
     64 int	wsfont_find(const char *, int, int, int, int, int, int);
     65 #define WSFONT_FIND_BITMAP	0x01
     66 #define WSFONT_FIND_ALPHA	0x02
     67 #define WSFONT_FIND_ALL		0xff
     68 #define WSFONT_FIND_BESTWIDTH	0x1000
     69 #define WSFONT_PREFER_ALPHA	0x2000
     70 #define WSFONT_PREFER_WIDE	0x8000
     71 
     72 void	wsfont_walk(void (*)(struct wsdisplay_font *, void *, int), void *);
     73 
     74 int	wsfont_add(struct wsdisplay_font *, int);
     75 int	wsfont_remove(int);
     76 void	wsfont_enum(void (*)(const char *, int, int, int));
     77 int	wsfont_lock(int, struct wsdisplay_font **);
     78 int	wsfont_unlock(int);
     79 int	wsfont_map_unichar(struct wsdisplay_font *, int);
     80 int	wsfont_rotate(int, int);
     81 
     82 enum {
     83 	WSFONT_ROTATE_CW,
     84 	WSFONT_ROTATE_CCW,
     85 	WSFONT_ROTATE_UD
     86 };
     87 
     88 int	wsfont_make_cookie(int, int, int);
     89 
     90 #endif	/* !_WSFONT_H_ */
     91