c5542264f1
- Don't use int32_t/u_int32_t unless we must. - Remove C++ single line comment delimeters that crept in. - Remove defs pertaining to byte granularity 'ragged-edge' bitmasks. - Move all declarations of per-depth initialization functions to rasops.h. - Other minor cleanup.
430 lines
10 KiB
C
430 lines
10 KiB
C
/* $NetBSD: rasops8.c,v 1.7 1999/10/23 23:14:14 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: rasops8.c,v 1.7 1999/10/23 23:14:14 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 rasops8_putchar __P((void *, int, int, u_int, long attr));
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#ifndef RASOPS_SMALL
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static void rasops8_putchar8 __P((void *, int, int, u_int, long attr));
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static void rasops8_putchar12 __P((void *, int, int, u_int, long attr));
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static void rasops8_putchar16 __P((void *, int, int, u_int, long attr));
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static void rasops8_makestamp __P((struct rasops_info *ri, long));
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#endif
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/*
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* 4x1 stamp for optimized character blitting
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*/
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static int32_t stamp[16];
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static long stamp_attr;
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static int stamp_mutex; /* XXX see note in README */
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/*
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* XXX this confuses the hell out of gcc2 (not egcs) which always insists
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* that the shift count is negative.
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*
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* offset = STAMP_SHIFT(fontbits, nibble #) & STAMP_MASK
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* destination = STAMP_READ(offset)
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*/
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#define STAMP_SHIFT(fb,n) ((n*4-2) >= 0 ? (fb)>>(n*4-2):(fb)<<-(n*4-2))
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#define STAMP_MASK (15 << 2)
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#define STAMP_READ(o) (*(int32_t *)((caddr_t)stamp + (o)))
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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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rasops8_init(ri)
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struct rasops_info *ri;
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{
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switch (ri->ri_font->fontwidth) {
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#ifndef RASOPS_SMALL
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case 8:
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ri->ri_ops.putchar = rasops8_putchar8;
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break;
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case 12:
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ri->ri_ops.putchar = rasops8_putchar12;
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break;
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case 16:
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ri->ri_ops.putchar = rasops8_putchar16;
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break;
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#endif /* !RASOPS_SMALL */
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default:
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ri->ri_ops.putchar = rasops8_putchar;
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break;
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}
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}
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/*
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* Put a single character.
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*/
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static void
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rasops8_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;
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u_char *dp, *rp, *fr, clr[2];
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struct rasops_info *ri;
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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 = 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] = (u_char)ri->ri_devcmap[(attr >> 16) & 15];
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clr[1] = (u_char)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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rp += ri->ri_stride;
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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) | (fr[0] << 24);
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fr += fs;
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rp += ri->ri_stride;
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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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rp -= (ri->ri_stride << 1);
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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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#ifndef RASOPS_SMALL
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/*
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* Recompute the 4x1 blitting stamp.
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*/
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static void
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rasops8_makestamp(ri, attr)
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struct rasops_info *ri;
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long attr;
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{
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int32_t fg, bg;
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int i;
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fg = ri->ri_devcmap[(attr >> 24) & 15] & 0xff;
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bg = ri->ri_devcmap[(attr >> 16) & 15] & 0xff;
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stamp_attr = attr;
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for (i = 0; i < 16; i++) {
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#if BYTE_ORDER == LITTLE_ENDIAN
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stamp[i] = (i & 8 ? fg : bg);
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stamp[i] |= ((i & 4 ? fg : bg) << 8);
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stamp[i] |= ((i & 2 ? fg : bg) << 16);
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stamp[i] |= ((i & 1 ? fg : bg) << 24);
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#else
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stamp[i] = (i & 1 ? fg : bg);
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stamp[i] |= ((i & 2 ? fg : bg) << 8);
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stamp[i] |= ((i & 4 ? fg : bg) << 16);
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stamp[i] |= ((i & 8 ? fg : bg) << 24);
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#endif
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}
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}
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/*
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* Put a single character. This is for 8-pixel wide fonts.
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*/
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static void
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rasops8_putchar8(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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struct rasops_info *ri;
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int height, fs;
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int32_t *rp;
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u_char *fr;
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/* Can't risk remaking the stamp if it's already in use */
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if (stamp_mutex++) {
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stamp_mutex--;
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rasops8_putchar(cookie, row, col, uc, attr);
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return;
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}
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ri = (struct rasops_info *)cookie;
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#ifdef RASOPS_CLIPPING
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if ((unsigned)row >= (unsigned)ri->ri_rows) {
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stamp_mutex--;
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return;
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}
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if ((unsigned)col >= (unsigned)ri->ri_cols) {
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stamp_mutex--;
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return;
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}
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#endif
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/* Recompute stamp? */
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if (attr != stamp_attr)
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rasops8_makestamp(ri, attr);
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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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if (uc == ' ') {
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while (height--) {
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rp[0] = stamp[0];
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rp[1] = stamp[0];
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DELTA(rp, ri->ri_stride, int32_t *);
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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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rp[0] = STAMP_READ(STAMP_SHIFT(fr[0], 1) & STAMP_MASK);
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rp[1] = STAMP_READ(STAMP_SHIFT(fr[0], 0) & STAMP_MASK);
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fr += fs;
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DELTA(rp, ri->ri_stride, int32_t *);
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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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rp[0] = stamp[15];
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rp[1] = stamp[15];
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}
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stamp_mutex--;
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}
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/*
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* Put a single character. This is for 12-pixel wide fonts.
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*/
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static void
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rasops8_putchar12(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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struct rasops_info *ri;
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int height, fs;
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int32_t *rp;
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u_char *fr;
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/* Can't risk remaking the stamp if it's already in use */
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if (stamp_mutex++) {
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stamp_mutex--;
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rasops8_putchar(cookie, row, col, uc, attr);
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return;
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}
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ri = (struct rasops_info *)cookie;
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#ifdef RASOPS_CLIPPING
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if ((unsigned)row >= (unsigned)ri->ri_rows) {
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stamp_mutex--;
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return;
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}
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if ((unsigned)col >= (unsigned)ri->ri_cols) {
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stamp_mutex--;
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return;
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}
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#endif
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/* Recompute stamp? */
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if (attr != stamp_attr)
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rasops8_makestamp(ri, attr);
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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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if (uc == ' ') {
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while (height--) {
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rp[0] = stamp[0];
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rp[1] = stamp[0];
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rp[2] = stamp[0];
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DELTA(rp, ri->ri_stride, int32_t *);
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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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rp[0] = STAMP_READ(STAMP_SHIFT(fr[0], 1) & STAMP_MASK);
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rp[1] = STAMP_READ(STAMP_SHIFT(fr[0], 0) & STAMP_MASK);
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rp[2] = STAMP_READ(STAMP_SHIFT(fr[1], 1) & STAMP_MASK);
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fr += fs;
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DELTA(rp, ri->ri_stride, int32_t *);
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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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rp[0] = stamp[15];
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rp[1] = stamp[15];
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rp[2] = stamp[15];
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}
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stamp_mutex--;
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}
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/*
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* Put a single character. This is for 16-pixel wide fonts.
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*/
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static void
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rasops8_putchar16(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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struct rasops_info *ri;
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int height, fs;
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int32_t *rp;
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u_char *fr;
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/* Can't risk remaking the stamp if it's already in use */
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if (stamp_mutex++) {
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stamp_mutex--;
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rasops8_putchar(cookie, row, col, uc, attr);
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return;
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}
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ri = (struct rasops_info *)cookie;
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#ifdef RASOPS_CLIPPING
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if ((unsigned)row >= (unsigned)ri->ri_rows) {
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stamp_mutex--;
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return;
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}
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if ((unsigned)col >= (unsigned)ri->ri_cols) {
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stamp_mutex--;
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return;
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}
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#endif
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/* Recompute stamp? */
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if (attr != stamp_attr)
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rasops8_makestamp(ri, attr);
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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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if (uc == ' ') {
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while (height--) {
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rp[0] = stamp[0];
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rp[1] = stamp[0];
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rp[2] = stamp[0];
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rp[3] = stamp[0];
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DELTA(rp, ri->ri_stride, int32_t *);
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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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rp[0] = STAMP_READ(STAMP_SHIFT(fr[0], 1) & STAMP_MASK);
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rp[1] = STAMP_READ(STAMP_SHIFT(fr[0], 0) & STAMP_MASK);
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rp[2] = STAMP_READ(STAMP_SHIFT(fr[1], 1) & STAMP_MASK);
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rp[3] = STAMP_READ(STAMP_SHIFT(fr[1], 0) & STAMP_MASK);
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fr += fs;
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DELTA(rp, ri->ri_stride, int32_t *);
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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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rp[0] = stamp[15];
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rp[1] = stamp[15];
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rp[2] = stamp[15];
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rp[3] = stamp[15];
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}
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stamp_mutex--;
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}
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#endif /* !RASOPS_SMALL */
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