132 lines
5.1 KiB
C
132 lines
5.1 KiB
C
/* $NetBSD: rasops.h,v 1.5 1999/04/29 02:49:40 ad Exp $ */
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/*
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* Copyright (c) 1999 Andy Doran <ad@NetBSD.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*/
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#ifndef _RASOPS_H_
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#define _RASOPS_H_ 1
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/* Avoid dragging in dev/wscons/wsconsio.h */
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struct wsdisplay_font;
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struct rasops_info {
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/* These must be filled in by the caller */
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int ri_depth; /* depth in bits */
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u_char *ri_bits; /* ptr to bits */
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int ri_width; /* width (pels) */
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int ri_height; /* height (pels) */
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int ri_stride; /* stride in bytes */
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/*
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* These can optionally be left empty. If you fill ri_font,
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* but aren't using wsfont, set ri_wsfcookie to -1.
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*/
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struct wsdisplay_font *ri_font;
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int ri_wsfcookie;
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void *ri_priv; /* driver private data */
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u_char ri_forcemono; /* force monochrome operation */
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u_char ri_swab; /* swap bytes for 15/16/32 bit depths? */
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/*
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* These are optional and will default if zero. Meaningless
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* on depths other than 15, 16, 24 and 32 bits per pel. On
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* 24 bit displays, ri_{r,g,b}num must be 8.
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*/
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u_char ri_rnum; /* number of bits for red */
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u_char ri_gnum; /* number of bits for green */
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u_char ri_bnum; /* number of bits for blue */
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u_char ri_rpos; /* which bit red starts at */
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u_char ri_gpos; /* which bit green starts at */
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u_char ri_bpos; /* which bit blue starts at */
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/* These are filled in by rasops_init() */
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int ri_emuwidth; /* width we actually care about */
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int ri_emuheight; /* height we actually care about */
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int ri_emustride; /* bytes per row we actually care about */
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int ri_rows; /* number of rows (characters, not pels) */
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int ri_cols; /* number of columns (characters, not pels) */
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int ri_delta; /* row delta in bytes */
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int ri_flg; /* flags */
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int ri_crow; /* cursor row */
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int ri_ccol; /* cursor column */
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int ri_pelbytes; /* bytes per pel (may be zero) */
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int ri_fontscale; /* fontheight * fontstride */
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int ri_xscale; /* fontwidth * pelbytes */
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int ri_yscale; /* fontheight * stride */
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u_char *ri_origbits; /* where screen bits actually start */
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int ri_xorigin; /* where ri_bits begins (x) */
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int ri_yorigin; /* where ri_bits begins (y) */
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/* For 15, 16, 24, 32 bits */
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int32_t ri_devcmap[16]; /* device colormap (WSCOL_*) */
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/* The emulops you need to use, and the screen caps for wscons */
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struct wsdisplay_emulops ri_ops;
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int ri_caps;
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/* Callbacks so we can share some code */
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void (*ri_do_cursor) __P((struct rasops_info *));
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};
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#define RASOPS_CURSOR (0x01) /* cursor is on */
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#define RASOPS_INITTED (0x02) /* struct is initialized */
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#define RASOPS_CURSOR_CLIPPED (0x04) /* cursor is clipped */
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#define DELTA(p, d, cast) ((p) = (cast)((caddr_t)(p) + (d)))
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/*
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* rasops_init().
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*
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* Integer parameters are: number of rows we'd like, number of columns we'd
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* like, whether we should clear the display and whether we should center
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* the output. Remember that what you'd like is always not what you get.
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*
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* In terms of optimization, fonts that are a multiple of 8 pixels wide
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* work the best: this is important, and will cost you if you don't use 'em.
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*
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* rasops_init() takes care of rasops_setfont(). You only need to use this
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* when you want to switch fonts later on. The integer parameters to both
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* are the same. Before calling rasops_setfont(), set ri.ri_font. This
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* should happen at _splhigh_. If (ri_wsfcookie >= 0), you must call
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* wsfont_unlock() on it first.
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*/
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/* rasops.c */
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int rasops_init __P((struct rasops_info *, int, int, int, int));
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int rasops_setfont __P((struct rasops_info *, int, int, int, int));
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void rasops_unpack_attr __P((long, int *, int *, int *));
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/* These should _not_ be called outside rasops */
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void rasops_eraserows __P((void *, int, int, long));
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void rasops_erasecols __P((void *, int, int, int, long));
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void rasops_copycols __P((void *, int, int, int, int));
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extern u_char rasops_isgray[16];
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extern u_char rasops_cmap[256*3];
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#endif /* _RASOPS_H_ */
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