131 lines
4.1 KiB
C
131 lines
4.1 KiB
C
/* $NetBSD: wscons_rinit.c,v 1.5 2003/08/07 16:31:29 agc Exp $ */
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/*
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* Copyright (c) 1991, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This software was developed by the Computer Systems Engineering group
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* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
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* contributed to Berkeley.
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*
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* All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Lawrence Berkeley Laboratory.
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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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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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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* @(#)rcons_font.c 8.1 (Berkeley) 6/11/93
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: wscons_rinit.c,v 1.5 2003/08/07 16:31:29 agc Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/device.h>
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#include <dev/rcons/raster.h>
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#include <dev/wscons/wscons_raster.h>
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#include <dev/wscons/wscons_rfont.h>
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void rcons_initfont(struct rcons *, struct raster_font *);
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void
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rcons_initfont(struct rcons *rc, struct raster_font *fp)
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{
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static int initfontdone;
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rc->rc_font = fp;
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/* Get distance to top and bottom of font from font origin */
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rc->rc_font_ascent = -(rc->rc_font->chars)['a'].homey;
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#if !defined(MSBYTE_FIRST) && !defined(MSBIT_FIRST) /* XXX other cases */
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/* swap byte order on font data. ick. */
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if (!initfontdone) {
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int ch, i, n, bit;
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u_int32_t *pix, npix;
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for (ch = 0; ch < 256; ch++) {
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if (rc->rc_font->chars[ch].r == 0)
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continue;
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n = rc->rc_font->chars[ch].r->linelongs *
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rc->rc_font->chars[ch].r->height;
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pix = rc->rc_font->chars[ch].r->pixels;
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for (i = 0; i < n; i++) {
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npix = 0;
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for (bit = 0; bit < 32; bit++)
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if (pix[i] & (1 << bit))
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npix |= (1 << (31 - bit));
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pix[i] = npix;
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}
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}
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}
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#endif
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initfontdone = 1;
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}
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void
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rcons_init(struct rcons *rc, int mrow, int mcol)
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{
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struct raster *rp = rc->rc_sp;
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int i;
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rcons_initfont(rc, &gallant19);
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i = rp->height / rc->rc_font->height;
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rc->rc_maxrow = min(i, mrow);
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i = rp->width / rc->rc_font->width;
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rc->rc_maxcol = min(i, mcol);
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/* Center emulator screen (but align x origin to 32 bits) */
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rc->rc_xorigin =
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((rp->width - rc->rc_maxcol * rc->rc_font->width) / 2) & ~0x1f;
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rc->rc_yorigin =
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(rp->height - rc->rc_maxrow * rc->rc_font->height) / 2;
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/* Raster width used for row copies */
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rc->rc_raswidth = rc->rc_maxcol * rc->rc_font->width;
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if (rc->rc_raswidth & 0x1f) {
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/* Pad to 32 bits */
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i = (rc->rc_raswidth + 0x1f) & ~0x1f;
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/* Make sure width isn't too wide */
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if (rc->rc_xorigin + i <= rp->width)
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rc->rc_raswidth = i;
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}
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rc->rc_bits = 0;
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/* If cursor position given, assume it's there and drawn. */
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if (*rc->rc_crowp != -1 && *rc->rc_ccolp != -1)
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rc->rc_bits |= RC_CURSOR;
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}
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