1 /*-
2 * Copyright (c) 2015 Conrad Meyer <cse.cem@gmail.com>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD: stable/12/sys/dev/vt/vt_cpulogos.c 350050 2019-07-16 16:05:42Z vangyzen $");
29
30 #include <sys/param.h>
31 #include <sys/callout.h>
32 #include <sys/cons.h>
33 #include <sys/kernel.h>
34 #include <sys/smp.h>
35 #include <sys/systm.h>
36 #include <sys/terminal.h>
37
38 #include <dev/vt/vt.h>
39
40 extern const unsigned char vt_beastie_vga16[];
41 extern const unsigned char vt_beastie2_vga16[];
42 extern const unsigned char vt_orb_vga16[];
43
44 static struct callout vt_splash_cpu_callout;
45
46 static inline unsigned char
vt_vga2bsd(unsigned char vga)47 vt_vga2bsd(unsigned char vga)
48 {
49 static const unsigned char lut[8] = {
50 0,
51 4, /* 1 and 4 swap */
52 2,
53 6, /* 3 and 6 swap */
54 1, /* 4 and 1 swap */
55 5,
56 3, /* 6 and 3 swap */
57 7,
58 };
59 unsigned int bright;
60
61 bright = (vga & 0x8);
62 return (lut[vga & 0x7] | bright);
63 }
64
65 static void
vt_draw_2_vga16_px(struct vt_device * vd,vt_axis_t x,vt_axis_t y,unsigned char color)66 vt_draw_2_vga16_px(struct vt_device *vd, vt_axis_t x, vt_axis_t y,
67 unsigned char color)
68 {
69
70 vd->vd_driver->vd_setpixel(vd, x, y, vt_vga2bsd(color >> 4));
71 vd->vd_driver->vd_setpixel(vd, x + 1, y, vt_vga2bsd(color & 0xf));
72 }
73
74 static void
vt_draw_1_logo(struct vt_device * vd,vt_axis_t top,vt_axis_t left)75 vt_draw_1_logo(struct vt_device *vd, vt_axis_t top, vt_axis_t left)
76 {
77 const unsigned char rle_sent = 0x16, *data;
78 unsigned int xy, run, runcolor, i;
79
80 switch (vt_splash_cpu_style) {
81 case VT_LOGOS_DRAW_ALT_BEASTIE:
82 data = vt_beastie2_vga16;
83 break;
84 case VT_LOGOS_DRAW_ORB:
85 data = vt_orb_vga16;
86 break;
87 case VT_LOGOS_DRAW_BEASTIE:
88 /* FALLTHROUGH */
89 default:
90 data = vt_beastie_vga16;
91 break;
92 }
93
94 /* Decode basic RLE (gets us to 30-40% of uncompressed data size): */
95 for (i = 0, xy = 0; xy < vt_logo_sprite_height * vt_logo_sprite_width;) {
96 if (data[i] == rle_sent) {
97 runcolor = data[i + 1];
98 run = data[i + 2];
99
100 for (; run; run--, xy += 2)
101 vt_draw_2_vga16_px(vd,
102 left + (xy % vt_logo_sprite_width),
103 top + (xy / vt_logo_sprite_width),
104 runcolor);
105
106 i += 3;
107 } else {
108 vt_draw_2_vga16_px(vd, left + (xy % vt_logo_sprite_width),
109 top + (xy / vt_logo_sprite_width), data[i]);
110
111 i++;
112 xy += 2;
113 }
114 }
115 }
116
117 void
vtterm_draw_cpu_logos(struct vt_device * vd)118 vtterm_draw_cpu_logos(struct vt_device *vd)
119 {
120 unsigned int ncpu, i;
121 vt_axis_t left;
122
123 if (vt_splash_ncpu)
124 ncpu = vt_splash_ncpu;
125 else {
126 ncpu = mp_ncpus;
127 if (ncpu < 1)
128 ncpu = 1;
129 }
130
131 if (vd->vd_driver->vd_drawrect)
132 vd->vd_driver->vd_drawrect(vd, 0, 0, vd->vd_width,
133 vt_logo_sprite_height, 1, TC_BLACK);
134 /*
135 * Blank is okay because we only ever draw beasties on full screen
136 * refreshes.
137 */
138 else if (vd->vd_driver->vd_blank)
139 vd->vd_driver->vd_blank(vd, TC_BLACK);
140
141 ncpu = MIN(ncpu, vd->vd_width / vt_logo_sprite_width);
142 for (i = 0, left = 0; i < ncpu; left += vt_logo_sprite_width, i++)
143 vt_draw_1_logo(vd, 0, left);
144 }
145
146 static void
vt_fini_logos(void * dummy __unused)147 vt_fini_logos(void *dummy __unused)
148 {
149 struct vt_device *vd;
150 struct vt_window *vw;
151 struct terminal *tm;
152 struct vt_font *vf;
153 struct winsize wsz;
154 term_pos_t size;
155 unsigned int i;
156
157 if (!vt_draw_logo_cpus)
158 return;
159 if (!vty_enabled(VTY_VT))
160 return;
161 if (!vt_splash_cpu)
162 return;
163
164 vd = &vt_consdev;
165 VT_LOCK(vd);
166 if ((vd->vd_flags & (VDF_DEAD | VDF_TEXTMODE)) != 0) {
167 VT_UNLOCK(vd);
168 return;
169 }
170 vt_draw_logo_cpus = 0;
171 VT_UNLOCK(vd);
172
173 for (i = 0; i < VT_MAXWINDOWS; i++) {
174 vw = vd->vd_windows[i];
175 if (vw == NULL)
176 continue;
177 tm = vw->vw_terminal;
178 vf = vw->vw_font;
179 if (vf == NULL)
180 continue;
181
182 vt_termsize(vd, vf, &size);
183 vt_winsize(vd, vf, &wsz);
184
185 /* Resize screen buffer and terminal. */
186 terminal_mute(tm, 1);
187 vtbuf_grow(&vw->vw_buf, &size, vw->vw_buf.vb_history_size);
188 terminal_set_winsize_blank(tm, &wsz, 0, NULL);
189 terminal_set_cursor(tm, &vw->vw_buf.vb_cursor);
190 terminal_mute(tm, 0);
191
192 VT_LOCK(vd);
193 vt_compute_drawable_area(vw);
194
195 if (vd->vd_curwindow == vw) {
196 vd->vd_flags |= VDF_INVALID;
197 vt_resume_flush_timer(vw, 0);
198 }
199 VT_UNLOCK(vd);
200 }
201 }
202
203 static void
vt_init_logos(void * dummy)204 vt_init_logos(void *dummy)
205 {
206 struct vt_device *vd;
207 struct vt_window *vw;
208 struct terminal *tm;
209 struct vt_font *vf;
210 struct winsize wsz;
211 term_pos_t size;
212
213 if (!vty_enabled(VTY_VT))
214 return;
215 if (!vt_splash_cpu)
216 return;
217
218 tm = &vt_consterm;
219 vw = tm->tm_softc;
220 if (vw == NULL)
221 return;
222 vd = vw->vw_device;
223 if (vd == NULL)
224 return;
225 vf = vw->vw_font;
226 if (vf == NULL)
227 return;
228
229 VT_LOCK(vd);
230 if ((vd->vd_flags & VDF_INITIALIZED) == 0)
231 goto out;
232 if ((vd->vd_flags & (VDF_DEAD | VDF_TEXTMODE)) != 0)
233 goto out;
234 if (vd->vd_height <= vt_logo_sprite_height)
235 goto out;
236
237 vt_draw_logo_cpus = 1;
238 VT_UNLOCK(vd);
239
240 vt_termsize(vd, vf, &size);
241 vt_winsize(vd, vf, &wsz);
242
243 /* Resize screen buffer and terminal. */
244 terminal_mute(tm, 1);
245 vtbuf_grow(&vw->vw_buf, &size, vw->vw_buf.vb_history_size);
246 terminal_set_winsize_blank(tm, &wsz, 0, NULL);
247 terminal_set_cursor(tm, &vw->vw_buf.vb_cursor);
248 terminal_mute(tm, 0);
249
250 VT_LOCK(vd);
251 vt_compute_drawable_area(vw);
252
253 if (vd->vd_curwindow == vw) {
254 vd->vd_flags |= VDF_INVALID;
255 vt_resume_flush_timer(vw, 0);
256 }
257
258 callout_init(&vt_splash_cpu_callout, 1);
259 callout_reset(&vt_splash_cpu_callout, vt_splash_cpu_duration * hz,
260 vt_fini_logos, NULL);
261
262 out:
263 VT_UNLOCK(vd);
264 }
265 SYSINIT(vt_logos, SI_SUB_CPU + 1, SI_ORDER_ANY, vt_init_logos, NULL);
266