1 /* $OpenBSD: rasops32.c,v 1.4 2002/07/27 22:17:49 miod Exp $ */
2 /* $NetBSD: rasops32.c,v 1.7 2000/04/12 14:22:29 pk Exp $ */
3
4 /*-
5 * Copyright (c) 1999 The NetBSD Foundation, Inc.
6 * All rights reserved.
7 *
8 * This code is derived from software contributed to The NetBSD Foundation
9 * by Andrew Doran.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 * 3. All advertising materials mentioning features or use of this software
20 * must display the following acknowledgement:
21 * This product includes software developed by the NetBSD
22 * Foundation, Inc. and its contributors.
23 * 4. Neither the name of The NetBSD Foundation nor the names of its
24 * contributors may be used to endorse or promote products derived
25 * from this software without specific prior written permission.
26 *
27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
37 * POSSIBILITY OF SUCH DAMAGE.
38 */
39
40 #include <sys/param.h>
41 #include <sys/systm.h>
42 #include <sys/time.h>
43
44 #include <dev/wscons/wsdisplayvar.h>
45 #include <dev/wscons/wsconsio.h>
46 #include <dev/rasops/rasops.h>
47
48 void rasops32_putchar(void *, int, int, u_int, long);
49
50 /*
51 * Initialize a 'rasops_info' descriptor for this depth.
52 */
53 void
rasops32_init(ri)54 rasops32_init(ri)
55 struct rasops_info *ri;
56 {
57
58 if (ri->ri_rnum == 0) {
59 ri->ri_rnum = 8;
60 ri->ri_rpos = 0;
61 ri->ri_gnum = 8;
62 ri->ri_gpos = 8;
63 ri->ri_bnum = 8;
64 ri->ri_bpos = 16;
65 }
66
67 ri->ri_ops.putchar = rasops32_putchar;
68 }
69
70 /*
71 * Paint a single character.
72 */
73 void
rasops32_putchar(cookie,row,col,uc,attr)74 rasops32_putchar(cookie, row, col, uc, attr)
75 void *cookie;
76 int row, col;
77 u_int uc;
78 long attr;
79 {
80 int width, height, cnt, fs, fb, clr[2];
81 struct rasops_info *ri;
82 int32_t *dp, *rp;
83 u_char *fr;
84
85 ri = (struct rasops_info *)cookie;
86
87 #ifdef RASOPS_CLIPPING
88 /* Catches 'row < 0' case too */
89 if ((unsigned)row >= (unsigned)ri->ri_rows)
90 return;
91
92 if ((unsigned)col >= (unsigned)ri->ri_cols)
93 return;
94 #endif
95
96 rp = (int32_t *)(ri->ri_bits + row*ri->ri_yscale + col*ri->ri_xscale);
97
98 height = ri->ri_font->fontheight;
99 width = ri->ri_font->fontwidth;
100
101 clr[0] = ri->ri_devcmap[(attr >> 16) & 0xf];
102 clr[1] = ri->ri_devcmap[(attr >> 24) & 0xf];
103
104 if (uc == ' ') {
105 while (height--) {
106 dp = rp;
107 DELTA(rp, ri->ri_stride, int32_t *);
108
109 for (cnt = width; cnt; cnt--)
110 *dp++ = clr[0];
111 }
112 } else {
113 uc -= ri->ri_font->firstchar;
114 fr = (u_char *)ri->ri_font->data + uc * ri->ri_fontscale;
115 fs = ri->ri_font->stride;
116
117 while (height--) {
118 dp = rp;
119 fb = fr[3] | (fr[2] << 8) | (fr[1] << 16) |
120 (fr[0] << 24);
121 fr += fs;
122 DELTA(rp, ri->ri_stride, int32_t *);
123
124 for (cnt = width; cnt; cnt--) {
125 *dp++ = clr[(fb >> 31) & 1];
126 fb <<= 1;
127 }
128 }
129 }
130
131 /* Do underline */
132 if ((attr & 1) != 0) {
133 DELTA(rp, -(ri->ri_stride << 1), int32_t *);
134
135 while (width--)
136 *rp++ = clr[1];
137 }
138 }
139