143 lines
4.0 KiB
C
143 lines
4.0 KiB
C
/* $NetBSD: rasops32.c,v 1.6 1999/10/24 15:14:57 ad Exp $ */
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/*-
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* Copyright (c) 1999 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Andy Doran.
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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. 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 NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "opt_rasops.h"
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: rasops32.c,v 1.6 1999/10/24 15:14:57 ad Exp $");
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#include <sys/types.h>
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/time.h>
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#include <dev/wscons/wsdisplayvar.h>
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#include <dev/wscons/wsconsio.h>
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#include <dev/rasops/rasops.h>
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static void rasops32_putchar __P((void *, int, int, u_int, long attr));
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/*
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* Initalize a 'rasops_info' descriptor for this depth.
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*/
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void
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rasops32_init(ri)
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struct rasops_info *ri;
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{
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if (ri->ri_rnum == 0) {
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ri->ri_rnum = 8;
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ri->ri_rpos = 0;
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ri->ri_gnum = 8;
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ri->ri_gpos = 8;
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ri->ri_bnum = 8;
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ri->ri_bpos = 16;
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}
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ri->ri_ops.putchar = rasops32_putchar;
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}
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/*
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* Paint a single character.
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*/
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static void
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rasops32_putchar(cookie, row, col, uc, attr)
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void *cookie;
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int row, col;
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u_int uc;
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long attr;
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{
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int width, height, cnt, fs, fb, clr[2];
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struct rasops_info *ri;
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int32_t *dp, *rp;
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u_char *fr;
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ri = (struct rasops_info *)cookie;
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#ifdef RASOPS_CLIPPING
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/* Catches 'row < 0' case too */
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if ((unsigned)row >= (unsigned)ri->ri_rows)
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return;
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if ((unsigned)col >= (unsigned)ri->ri_cols)
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return;
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#endif
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rp = (int32_t *)(ri->ri_bits + row*ri->ri_yscale + col*ri->ri_xscale);
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height = ri->ri_font->fontheight;
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width = ri->ri_font->fontwidth;
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clr[0] = ri->ri_devcmap[(attr >> 16) & 15];
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clr[1] = ri->ri_devcmap[(attr >> 24) & 15];
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if (uc == ' ') {
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while (height--) {
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dp = rp;
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DELTA(rp, ri->ri_stride, int32_t *);
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for (cnt = width; cnt; cnt--)
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*dp++ = clr[0];
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}
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} else {
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uc -= ri->ri_font->firstchar;
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fr = (u_char *)ri->ri_font->data + uc * ri->ri_fontscale;
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fs = ri->ri_font->stride;
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while (height--) {
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dp = rp;
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fb = fr[3] | (fr[2] << 8) | (fr[1] << 16) |
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(fr[0] << 24);
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fr += fs;
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DELTA(rp, ri->ri_stride, int32_t *);
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for (cnt = width; cnt; cnt--) {
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*dp++ = clr[(fb >> 31) & 1];
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fb <<= 1;
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}
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}
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}
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/* Do underline */
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if ((attr & 1) != 0) {
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DELTA(rp, -(ri->ri_stride << 1), int32_t *);
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while (width--)
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*rp++ = clr[1];
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}
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}
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