362 lines
8.7 KiB
C
362 lines
8.7 KiB
C
/* $OpenBSD: rasops1.c,v 1.13 2023/01/18 11:08:49 nicm Exp $ */
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/* $NetBSD: rasops1.c,v 1.11 2000/04/12 14:22:29 pk 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 Andrew 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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*
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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 <sys/param.h>
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#include <sys/systm.h>
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#include <sys/time.h>
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#include <sys/endian.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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#include <dev/rasops/rasops_masks.h>
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int rasops1_copycols(void *, int, int, int, int);
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int rasops1_erasecols(void *, int, int, int, uint32_t);
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int rasops1_do_cursor(struct rasops_info *);
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int rasops1_putchar(void *, int, int col, u_int, uint32_t);
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#if !defined(RASOPS_SMALL) && BYTE_ORDER == BIG_ENDIAN
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int rasops1_putchar8(void *, int, int col, u_int, uint32_t);
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int rasops1_putchar16(void *, int, int col, u_int, uint32_t);
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#endif
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/*
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* Initialize rasops_info struct for this colordepth.
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*/
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void
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rasops1_init(struct rasops_info *ri)
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{
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rasops_masks_init();
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switch (ri->ri_font->fontwidth) {
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#if !defined(RASOPS_SMALL) && BYTE_ORDER == BIG_ENDIAN
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case 8:
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ri->ri_ops.putchar = rasops1_putchar8;
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break;
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case 16:
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ri->ri_ops.putchar = rasops1_putchar16;
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break;
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#endif
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default:
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ri->ri_ops.putchar = rasops1_putchar;
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break;
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}
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if ((ri->ri_font->fontwidth & 7) != 0) {
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ri->ri_ops.erasecols = rasops1_erasecols;
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ri->ri_ops.copycols = rasops1_copycols;
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ri->ri_do_cursor = rasops1_do_cursor;
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}
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}
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/*
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* Paint a single character. This is the generic version, this is ugly.
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*/
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int
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rasops1_putchar(void *cookie, int row, int col, u_int uc, uint32_t attr)
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{
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u_int fs, rs, fb, bg, fg, lmask, rmask;
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u_int32_t height, width;
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struct rasops_info *ri;
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int32_t *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 0;
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if ((unsigned)col >= (unsigned)ri->ri_cols)
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return 0;
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#endif
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col *= ri->ri_font->fontwidth;
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rp = (int32_t *)(ri->ri_bits + row * ri->ri_yscale + ((col >> 3) & ~3));
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height = ri->ri_font->fontheight;
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width = ri->ri_font->fontwidth;
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col = col & 31;
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rs = ri->ri_stride;
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bg = (attr & 0x000f0000) ? ri->ri_devcmap[1] : ri->ri_devcmap[0];
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fg = (attr & 0x0f000000) ? ri->ri_devcmap[1] : ri->ri_devcmap[0];
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/* If fg and bg match this becomes a space character */
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if (fg == bg || uc == ' ') {
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uc = (u_int)-1;
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fr = 0; /* shutup gcc */
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fs = 0; /* shutup gcc */
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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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}
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/* Single word, one mask */
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if ((col + width) <= 32) {
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rmask = rasops_pmask[col][width];
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lmask = ~rmask;
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if (uc == (u_int)-1) {
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bg &= rmask;
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while (height--) {
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*rp = (*rp & lmask) | bg;
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DELTA(rp, rs, int32_t *);
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}
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} else {
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/* NOT fontbits if bg is white */
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if (bg) {
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while (height--) {
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fb = ~(fr[3] | (fr[2] << 8) |
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(fr[1] << 16) | (fr[0] << 24));
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*rp = (*rp & lmask)
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| (MBE(fb >> col) & rmask);
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fr += fs;
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DELTA(rp, rs, int32_t *);
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}
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} else {
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while (height--) {
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fb = (fr[3] | (fr[2] << 8) |
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(fr[1] << 16) | (fr[0] << 24));
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*rp = (*rp & lmask)
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| (MBE(fb >> col) & rmask);
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fr += fs;
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DELTA(rp, rs, int32_t *);
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}
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}
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}
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/* Do underline */
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if ((attr & WSATTR_UNDERLINE) != 0) {
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DELTA(rp, -(ri->ri_stride << 1), int32_t *);
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*rp = (*rp & lmask) | (fg & rmask);
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}
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} else {
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lmask = ~rasops_lmask[col];
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rmask = ~rasops_rmask[(col + width) & 31];
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if (uc == (u_int)-1) {
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width = bg & ~rmask;
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bg = bg & ~lmask;
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while (height--) {
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rp[0] = (rp[0] & lmask) | bg;
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rp[1] = (rp[1] & rmask) | width;
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DELTA(rp, rs, int32_t *);
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}
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} else {
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width = 32 - col;
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/* NOT fontbits if bg is white */
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if (bg) {
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while (height--) {
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fb = ~(fr[3] | (fr[2] << 8) |
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(fr[1] << 16) | (fr[0] << 24));
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rp[0] = (rp[0] & lmask)
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| MBE((u_int)fb >> col);
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rp[1] = (rp[1] & rmask)
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| (MBE((u_int)fb << width) & ~rmask);
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fr += fs;
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DELTA(rp, rs, int32_t *);
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}
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} else {
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while (height--) {
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fb = (fr[3] | (fr[2] << 8) |
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(fr[1] << 16) | (fr[0] << 24));
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rp[0] = (rp[0] & lmask)
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| MBE(fb >> col);
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rp[1] = (rp[1] & rmask)
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| (MBE(fb << width) & ~rmask);
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fr += fs;
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DELTA(rp, rs, int32_t *);
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}
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}
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}
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/* Do underline */
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if ((attr & WSATTR_UNDERLINE) != 0) {
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DELTA(rp, -(ri->ri_stride << 1), int32_t *);
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rp[0] = (rp[0] & lmask) | (fg & ~lmask);
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rp[1] = (rp[1] & rmask) | (fg & ~rmask);
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}
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}
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return 0;
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}
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#if !defined(RASOPS_SMALL) && BYTE_ORDER == BIG_ENDIAN
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/*
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* Paint a single character. This is for 8-pixel wide fonts.
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*/
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int
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rasops1_putchar8(void *cookie, int row, int col, u_int uc, uint32_t attr)
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{
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int height, fs, rs, bg, fg;
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struct rasops_info *ri;
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u_char *fr, *rp;
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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 0;
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if ((unsigned)col >= (unsigned)ri->ri_cols)
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return 0;
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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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rs = ri->ri_stride;
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bg = (attr & 0x000f0000) ? ri->ri_devcmap[1] : ri->ri_devcmap[0];
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fg = (attr & 0x0f000000) ? ri->ri_devcmap[1] : ri->ri_devcmap[0];
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/* If fg and bg match this becomes a space character */
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if (fg == bg || uc == ' ') {
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while (height--) {
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*rp = bg;
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rp += rs;
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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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/* NOT fontbits if bg is white */
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if (bg) {
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while (height--) {
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*rp = ~*fr;
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fr += fs;
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rp += rs;
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}
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} else {
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while (height--) {
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*rp = *fr;
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fr += fs;
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rp += rs;
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}
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}
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}
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/* Do underline */
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if ((attr & WSATTR_UNDERLINE) != 0)
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rp[-(ri->ri_stride << 1)] = fg;
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return 0;
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}
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/*
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* Paint a single character. This is for 16-pixel wide fonts.
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*/
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int
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rasops1_putchar16(void *cookie, int row, int col, u_int uc, uint32_t attr)
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{
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int height, fs, rs, bg, fg;
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struct rasops_info *ri;
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u_char *fr, *rp;
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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 0;
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if ((unsigned)col >= (unsigned)ri->ri_cols)
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return 0;
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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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rs = ri->ri_stride;
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bg = (attr & 0x000f0000) ? ri->ri_devcmap[1] : ri->ri_devcmap[0];
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fg = (attr & 0x0f000000) ? ri->ri_devcmap[1] : ri->ri_devcmap[0];
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/* If fg and bg match this becomes a space character */
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if (fg == bg || uc == ' ') {
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while (height--) {
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*(int16_t *)rp = bg;
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rp += rs;
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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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/* NOT fontbits if bg is white */
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if (bg) {
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while (height--) {
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rp[0] = ~fr[0];
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rp[1] = ~fr[1];
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fr += fs;
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rp += rs;
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}
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} else {
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while (height--) {
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rp[0] = fr[0];
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rp[1] = fr[1];
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fr += fs;
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rp += rs;
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}
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}
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}
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/* Do underline */
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if ((attr & WSATTR_UNDERLINE) != 0)
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*(int16_t *)(rp - (ri->ri_stride << 1)) = fg;
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return 0;
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}
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#endif /* !defined(RASOPS_SMALL) && BYTE_ORDER == BIG_ENDIAN */
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/*
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* Grab routines common to depths where (bpp < 8)
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*/
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#define NAME(ident) rasops1_##ident
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#define PIXEL_SHIFT 0
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#include <dev/rasops/rasops_bitops.h>
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