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/* $NetBSD: rasops.h,v 1.6 1999/05/18 21:51:59 ad Exp $ */
/*-
* Copyright (c) 1999 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Andy Doran.
*
* 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
#ifndef _RASOPS_H_
#define _RASOPS_H_ 1
/* Avoid dragging in dev/wscons/wsconsio.h */
struct wsdisplay_font;
struct rasops_info {
/* These must be filled in by the caller */
int ri_depth; /* depth in bits */
u_char *ri_bits; /* ptr to bits */
int ri_width; /* width (pels) */
int ri_height; /* height (pels) */
int ri_stride; /* stride in bytes */
/*
* These can optionally be left empty. If you fill ri_font,
* but aren't using wsfont, set ri_wsfcookie to -1.
*/
struct wsdisplay_font *ri_font;
int ri_wsfcookie;
void *ri_priv; /* driver private data */
u_char ri_forcemono; /* force monochrome operation */
u_char ri_swab; /* swap bytes for 15/16/32 bit depths? */
/*
* These are optional and will default if zero. Meaningless
* on depths other than 15, 16, 24 and 32 bits per pel. On
* 24 bit displays, ri_{r,g,b}num must be 8.
*/
u_char ri_rnum; /* number of bits for red */
u_char ri_gnum; /* number of bits for green */
u_char ri_bnum; /* number of bits for blue */
u_char ri_rpos; /* which bit red starts at */
u_char ri_gpos; /* which bit green starts at */
u_char ri_bpos; /* which bit blue starts at */
/* These are filled in by rasops_init() */
int ri_emuwidth; /* width we actually care about */
int ri_emuheight; /* height we actually care about */
int ri_emustride; /* bytes per row we actually care about */
int ri_rows; /* number of rows (characters, not pels) */
int ri_cols; /* number of columns (characters, not pels) */
int ri_delta; /* row delta in bytes */
int ri_flg; /* flags */
int ri_crow; /* cursor row */
int ri_ccol; /* cursor column */
int ri_pelbytes; /* bytes per pel (may be zero) */
int ri_fontscale; /* fontheight * fontstride */
int ri_xscale; /* fontwidth * pelbytes */
int ri_yscale; /* fontheight * stride */
u_char *ri_origbits; /* where screen bits actually start */
int ri_xorigin; /* where ri_bits begins (x) */
int ri_yorigin; /* where ri_bits begins (y) */
/* For 15, 16, 24, 32 bits */
int32_t ri_devcmap[16]; /* device colormap (WSCOL_*) */
/* The emulops you need to use, and the screen caps for wscons */
struct wsdisplay_emulops ri_ops;
int ri_caps;
/* Callbacks so we can share some code */
void (*ri_do_cursor) __P((struct rasops_info *));
};
#define RASOPS_CURSOR (0x01) /* cursor is on */
#define RASOPS_INITTED (0x02) /* struct is initialized */
#define RASOPS_CURSOR_CLIPPED (0x04) /* cursor is clipped */
#define DELTA(p, d, cast) ((p) = (cast)((caddr_t)(p) + (d)))
/*
* rasops_init().
*
* Integer parameters are: number of rows we'd like, number of columns we'd
* like, whether we should clear the display and whether we should center
* the output. Remember that what you'd like is always not what you get.
*
* In terms of optimization, fonts that are a multiple of 8 pixels wide
* work the best: this is important, and will cost you if you don't use 'em.
*
* rasops_init() takes care of rasops_setfont(). You only need to use this
* when you want to switch fonts later on. The integer parameters to both
* are the same. Before calling rasops_setfont(), set ri.ri_font. This
* should happen at _splhigh_. If (ri_wsfcookie >= 0), you must call
* wsfont_unlock() on it first.
*/
/* rasops.c */
int rasops_init __P((struct rasops_info *, int, int, int, int));
int rasops_setfont __P((struct rasops_info *, int, int, int, int));
void rasops_unpack_attr __P((long, int *, int *, int *));
/* These should _not_ be called outside rasops */
void rasops_eraserows __P((void *, int, int, long));
void rasops_erasecols __P((void *, int, int, int, long));
void rasops_copycols __P((void *, int, int, int, int));
extern u_char rasops_isgray[16];
extern u_char rasops_cmap[256*3];
#endif /* _RASOPS_H_ */
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