125 lines
4.8 KiB
C
125 lines
4.8 KiB
C
/* $NetBSD: rasops.h,v 1.4 1999/04/26 04:27:47 ad Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 1999 Andy Doran <ad@NetBSD.org>
|
|
* All rights reserved.
|
|
*
|
|
* 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.
|
|
*
|
|
*/
|
|
|
|
#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 */
|
|
struct wsdisplay_font *ri_font;
|
|
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 */
|
|
|
|
/* 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_.
|
|
*/
|
|
|
|
/* 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_ */
|