1 /* $NetBSD: rasops_putchar.h,v 1.8 2019/08/10 01:24:17 rin Exp $ */
2
3 /* NetBSD: rasops8.c,v 1.41 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_DEPTH != 8 && RASOPS_DEPTH != 15 && RASOPS_DEPTH != 24 && \
34 RASOPS_DEPTH != 32
35 #error "Depth not supported"
36 #endif
37
38 #if RASOPS_DEPTH == 8
39 #define COLOR_TYPE uint8_t
40 #elif RASOPS_DEPTH == 15
41 #define COLOR_TYPE uint16_t
42 #else
43 #define COLOR_TYPE uint32_t
44 #endif
45
46 #if RASOPS_DEPTH != 24
47 #define PIXEL_TYPE COLOR_TYPE
48 #define PIXEL_BYTES sizeof(PIXEL_TYPE)
49 #define SET_COLOR(p, index) *(p)++ = clr[index]
50 #define SET_RGB(p, r, g, b) \
51 *(p)++ = (((r) >> (8 - ri->ri_rnum)) << ri->ri_rpos) | \
52 (((g) >> (8 - ri->ri_gnum)) << ri->ri_gpos) | \
53 (((b) >> (8 - ri->ri_bnum)) << ri->ri_bpos)
54 #endif
55
56 #if RASOPS_DEPTH == 24
57 #define PIXEL_TYPE uint8_t
58 #define PIXEL_BYTES 3
59 #define SET_COLOR(p, index) \
60 do { \
61 COLOR_TYPE c = clr[index]; \
62 *(p)++ = c >> 16; \
63 *(p)++ = c >> 8; \
64 *(p)++ = c; \
65 } while (0 /* CONSTCOND */)
66 #define SET_RGB(p, r, g, b) \
67 do { \
68 (p)[R_OFF] = (r); \
69 (p)[G_OFF] = (g); \
70 (p)[B_OFF] = (b); \
71 (p) += 3; \
72 } while (0 /* CONSTCOND */)
73 #endif
74
75 #define AV(p, w) (((w) * (p)[1] + (0xff - (w)) * (p)[0]) >> 8)
76
77 #if BYTE_ORDER == LITTLE_ENDIAN
78 #define R_OFF (ri->ri_rpos / 8)
79 #define G_OFF (ri->ri_gpos / 8)
80 #define B_OFF (ri->ri_bpos / 8)
81 #else /* BIG_ENDIAN XXX not tested */
82 #define R_OFF (2 - ri->ri_rpos / 8)
83 #define G_OFF (2 - ri->ri_gpos / 8)
84 #define B_OFF (2 - ri->ri_bpos / 8)
85 #endif
86
87 #define NAME(depth) NAME1(depth)
88 #ifndef RASOPS_AA
89 #define NAME1(depth) rasops ## depth ## _putchar
90 #else
91 #define NAME1(depth) rasops ## depth ## _putchar_aa
92 #endif
93
94 /*
95 * Put a single character.
96 */
97 static void
NAME(RASOPS_DEPTH)98 NAME(RASOPS_DEPTH)(void *cookie, int row, int col, u_int uc, long attr)
99 {
100 struct rasops_info *ri = (struct rasops_info *)cookie;
101 struct wsdisplay_font *font = PICK_FONT(ri, uc);
102 int height, width, cnt;
103 uint8_t *fr;
104 COLOR_TYPE clr[2];
105 PIXEL_TYPE *dp, *rp, *hp;
106
107 hp = NULL; /* XXX GCC */
108
109 if (__predict_false(!CHAR_IN_FONT(uc, font)))
110 return;
111
112 #ifdef RASOPS_CLIPPING
113 /* Catches 'row < 0' case too */
114 if ((unsigned)row >= (unsigned)ri->ri_rows)
115 return;
116
117 if ((unsigned)col >= (unsigned)ri->ri_cols)
118 return;
119 #endif
120
121 height = font->fontheight;
122 width = font->fontwidth;
123
124 rp = (PIXEL_TYPE *)(ri->ri_bits + FBOFFSET(ri, row, col));
125 if (ri->ri_hwbits)
126 hp = (PIXEL_TYPE *)(ri->ri_hwbits + FBOFFSET(ri, row, col));
127
128 clr[0] = (COLOR_TYPE)ATTR_BG(ri, attr);
129 clr[1] = (COLOR_TYPE)ATTR_FG(ri, attr);
130
131 if (uc == ' ') {
132 while (height--) {
133 dp = rp;
134 for (cnt = width; cnt; cnt--)
135 SET_COLOR(dp, 0);
136 if (ri->ri_hwbits) {
137 uint16_t bytes = width * PIXEL_BYTES;
138 /* XXX GCC */
139 memcpy(hp, rp, bytes);
140 DELTA(hp, ri->ri_stride, PIXEL_TYPE *);
141 }
142 DELTA(rp, ri->ri_stride, PIXEL_TYPE *);
143 }
144 } else {
145 fr = FONT_GLYPH(uc, font, ri);
146
147 #ifdef RASOPS_AA
148 int off[2];
149 uint8_t r[2], g[2], b[2];
150
151 /*
152 * This is independent to positions/lengths of RGB in pixel.
153 */
154 off[0] = (((uint32_t)attr >> 16) & 0xf) * 3;
155 off[1] = (((uint32_t)attr >> 24) & 0xf) * 3;
156
157 r[0] = rasops_cmap[off[0]];
158 r[1] = rasops_cmap[off[1]];
159 g[0] = rasops_cmap[off[0] + 1];
160 g[1] = rasops_cmap[off[1] + 1];
161 b[0] = rasops_cmap[off[0] + 2];
162 b[1] = rasops_cmap[off[1] + 2];
163 #endif
164
165 while (height--) {
166 dp = rp;
167
168 #ifndef RASOPS_AA
169 uint32_t fb = rasops_be32uatoh(fr);
170 fr += ri->ri_font->stride;
171
172 for (cnt = width; cnt; cnt--) {
173 SET_COLOR(dp, (fb >> 31) & 1);
174 fb <<= 1;
175 }
176 #else /* RASOPS_AA */
177 for (cnt = width; cnt; cnt--) {
178 int w = *fr++;
179 if (w == 0xff)
180 SET_COLOR(dp, 1);
181 else if (w == 0)
182 SET_COLOR(dp, 0);
183 else
184 SET_RGB(dp,
185 AV(r, w), AV(g, w), AV(b, w));
186 }
187 #endif
188 if (ri->ri_hwbits) {
189 uint16_t bytes = width * PIXEL_BYTES;
190 /* XXX GCC */
191 memcpy(hp, rp, bytes);
192 DELTA(hp, ri->ri_stride, PIXEL_TYPE *);
193 }
194 DELTA(rp, ri->ri_stride, PIXEL_TYPE *);
195 }
196 }
197
198 /* Do underline */
199 if ((attr & WSATTR_UNDERLINE) != 0) {
200 DELTA(rp, - ri->ri_stride * ri->ri_ul.off, PIXEL_TYPE *);
201 if (ri->ri_hwbits)
202 DELTA(hp, - ri->ri_stride * ri->ri_ul.off,
203 PIXEL_TYPE *);
204
205 for (height = ri->ri_ul.height; height; height--) {
206 DELTA(rp, - ri->ri_stride, PIXEL_TYPE *);
207 dp = rp;
208 for (cnt = width; cnt; cnt--)
209 SET_COLOR(dp, 1);
210 if (ri->ri_hwbits) {
211 DELTA(hp, - ri->ri_stride, PIXEL_TYPE *);
212 uint16_t bytes = width * PIXEL_BYTES;
213 /* XXX GCC */
214 memcpy(hp, rp, bytes);
215 }
216 }
217 }
218 }
219
220 #undef COLOR_TYPE
221
222 #undef PIXEL_TYPE
223 #undef PIXEL_BYTES
224 #undef SET_COLOR
225 #undef SET_RGB
226
227 #undef AV
228
229 #undef R_OFF
230 #undef G_OFF
231 #undef B_OFF
232
233 #undef NAME
234 #undef NAME1
235