1 /* $NetBSD: rasops1_putchar_width.h,v 1.6 2019/08/10 01:24:17 rin Exp $ */
2
3 /* NetBSD: rasops1.c,v 1.28 2019/07/25 03:02:44 rin Exp */
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 *
20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30 * POSSIBILITY OF SUCH DAMAGE.
31 */
32
33 #if RASOPS_WIDTH != 8 && RASOPS_WIDTH != 16
34 #error "Width not supported"
35 #endif
36
37 #if RASOPS_WIDTH == 8
38 #define SUBST_UNIT uint8_t
39 #define GET_GLYPH(fr) (fr)[0]
40 #endif
41
42 #if RASOPS_WIDTH == 16
43 /*
44 * rp and hp are always half-word aligned, whereas
45 * fr may not be aligned in half-word boundary.
46 */
47 #define SUBST_UNIT uint16_t
48 # if BYTE_ORDER == BIG_ENDIAN
49 #define GET_GLYPH(fr) ((fr)[0] << 8) | (fr)[1]
50 # else
51 #define GET_GLYPH(fr) (fr)[0] | ((fr)[1] << 8)
52 # endif
53 #endif /* RASOPS_WIDTH == 16 */
54
55 #define NAME(width) NAME1(width)
56 #define NAME1(width) rasops1_putchar ## width
57
58 /*
59 * Width-optimized putchar function.
60 */
61 static void
NAME(RASOPS_WIDTH)62 NAME(RASOPS_WIDTH)(void *cookie, int row, int col, u_int uc, long attr)
63 {
64 struct rasops_info *ri = (struct rasops_info *)cookie;
65 struct wsdisplay_font *font = PICK_FONT(ri, uc);
66 int height;
67 uint32_t bg, fg;
68 uint8_t *fr;
69 SUBST_UNIT tmp, *rp, *hp;
70
71 hp = NULL; /* XXX GCC */
72
73 if (__predict_false(!CHAR_IN_FONT(uc, font)))
74 return;
75
76 #ifdef RASOPS_CLIPPING
77 /* Catches 'row < 0' case too */
78 if ((unsigned)row >= (unsigned)ri->ri_rows)
79 return;
80
81 if ((unsigned)col >= (unsigned)ri->ri_cols)
82 return;
83 #endif
84
85 height = font->fontheight;
86
87 rp = (SUBST_UNIT *)(ri->ri_bits + row * ri->ri_yscale +
88 col * sizeof(SUBST_UNIT));
89 if (ri->ri_hwbits)
90 hp = (SUBST_UNIT *)(ri->ri_hwbits + row * ri->ri_yscale +
91 col * sizeof(SUBST_UNIT));
92
93 bg = ATTR_BG(ri, attr);
94 fg = ATTR_FG(ri, attr);
95
96 /* If fg and bg match this becomes a space character */
97 if (uc == ' ' || __predict_false(fg == bg)) {
98 while (height--) {
99 *rp = bg;
100 if (ri->ri_hwbits) {
101 *hp = bg;
102 DELTA(hp, ri->ri_stride, SUBST_UNIT *);
103 }
104 DELTA(rp, ri->ri_stride, SUBST_UNIT *);
105 }
106 } else {
107 fr = FONT_GLYPH(uc, font, ri);
108
109 while (height--) {
110 tmp = GET_GLYPH(fr);
111 fr += font->stride;
112 if (bg)
113 tmp = ~tmp;
114
115 *rp = tmp;
116
117 if (ri->ri_hwbits) {
118 *hp = tmp;
119 DELTA(hp, ri->ri_stride, SUBST_UNIT *);
120 }
121
122 DELTA(rp, ri->ri_stride, SUBST_UNIT *);
123 }
124 }
125
126 /* Do underline */
127 if ((attr & WSATTR_UNDERLINE) != 0) {
128 DELTA(rp, - ri->ri_stride * ri->ri_ul.off, SUBST_UNIT *);
129 if (ri->ri_hwbits)
130 DELTA(hp, - ri->ri_stride * ri->ri_ul.off,
131 SUBST_UNIT *);
132
133 for (height = ri->ri_ul.height; height; height--) {
134 DELTA(rp, - ri->ri_stride, SUBST_UNIT *);
135 *rp = fg;
136 if (ri->ri_hwbits) {
137 DELTA(hp, - ri->ri_stride, SUBST_UNIT *);
138 *hp = fg;
139 }
140 }
141 }
142 }
143
144 #undef SUBST_UNIT
145 #undef GET_GLYPH
146
147 #undef NAME
148 #undef NAME1
149