diff options
Diffstat (limited to 'sys/dev/vt/vt_cpulogos.c')
| -rw-r--r-- | sys/dev/vt/vt_cpulogos.c | 266 |
1 files changed, 266 insertions, 0 deletions
diff --git a/sys/dev/vt/vt_cpulogos.c b/sys/dev/vt/vt_cpulogos.c new file mode 100644 index 0000000..af604a8 --- /dev/null +++ b/sys/dev/vt/vt_cpulogos.c @@ -0,0 +1,266 @@ +/*- + * Copyright (c) 2015 Conrad Meyer <cse.cem@gmail.com> + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <sys/param.h> +#include <sys/callout.h> +#include <sys/cons.h> +#include <sys/kernel.h> +#include <sys/smp.h> +#include <sys/systm.h> +#include <sys/terminal.h> + +#include <dev/vt/vt.h> + +extern const unsigned char vt_beastie_vga16[]; +extern const unsigned char vt_beastie2_vga16[]; +extern const unsigned char vt_orb_vga16[]; + +static struct callout vt_splash_cpu_callout; + +static inline unsigned char +vt_vga2bsd(unsigned char vga) +{ + static const unsigned char lut[8] = { + 0, + 4, /* 1 and 4 swap */ + 2, + 6, /* 3 and 6 swap */ + 1, /* 4 and 1 swap */ + 5, + 3, /* 6 and 3 swap */ + 7, + }; + unsigned int bright; + + bright = (vga & 0x8); + return (lut[vga & 0x7] | bright); +} + +static void +vt_draw_2_vga16_px(struct vt_device *vd, vt_axis_t x, vt_axis_t y, + unsigned char color) +{ + + vd->vd_driver->vd_setpixel(vd, x, y, vt_vga2bsd(color >> 4)); + vd->vd_driver->vd_setpixel(vd, x + 1, y, vt_vga2bsd(color & 0xf)); +} + +static void +vt_draw_1_logo(struct vt_device *vd, vt_axis_t top, vt_axis_t left) +{ + const unsigned char rle_sent = 0x16, *data; + unsigned int xy, run, runcolor, i; + + switch (vt_splash_cpu_style) { + case VT_LOGOS_DRAW_ALT_BEASTIE: + data = vt_beastie2_vga16; + break; + case VT_LOGOS_DRAW_ORB: + data = vt_orb_vga16; + break; + case VT_LOGOS_DRAW_BEASTIE: + /* FALLTHROUGH */ + default: + data = vt_beastie_vga16; + break; + } + + /* Decode basic RLE (gets us to 30-40% of uncompressed data size): */ + for (i = 0, xy = 0; xy < vt_logo_sprite_height * vt_logo_sprite_width;) { + if (data[i] == rle_sent) { + runcolor = data[i + 1]; + run = data[i + 2]; + + for (; run; run--, xy += 2) + vt_draw_2_vga16_px(vd, + left + (xy % vt_logo_sprite_width), + top + (xy / vt_logo_sprite_width), + runcolor); + + i += 3; + } else { + vt_draw_2_vga16_px(vd, left + (xy % vt_logo_sprite_width), + top + (xy / vt_logo_sprite_width), data[i]); + + i++; + xy += 2; + } + } +} + +void +vtterm_draw_cpu_logos(struct vt_device *vd) +{ + unsigned int ncpu, i; + vt_axis_t left; + + if (vt_splash_ncpu) + ncpu = vt_splash_ncpu; + else { + ncpu = mp_ncpus; + if (ncpu < 1) + ncpu = 1; + } + + if (vd->vd_driver->vd_drawrect) + vd->vd_driver->vd_drawrect(vd, 0, 0, vd->vd_width, + vt_logo_sprite_height, 1, TC_BLACK); + /* + * Blank is okay because we only ever draw beasties on full screen + * refreshes. + */ + else if (vd->vd_driver->vd_blank) + vd->vd_driver->vd_blank(vd, TC_BLACK); + + ncpu = MIN(ncpu, vd->vd_width / vt_logo_sprite_width); + for (i = 0, left = 0; i < ncpu; left += vt_logo_sprite_width, i++) + vt_draw_1_logo(vd, 0, left); +} + +static void +vt_fini_logos(void *dummy __unused) +{ + struct vt_device *vd; + struct vt_window *vw; + struct terminal *tm; + struct vt_font *vf; + struct winsize wsz; + term_pos_t size; + + if (!vt_draw_logo_cpus) + return; + if (!vty_enabled(VTY_VT)) + return; + if (!vt_splash_cpu) + return; + + tm = &vt_consterm; + vw = tm->tm_softc; + if (vw == NULL) + return; + vd = vw->vw_device; + if (vd == NULL) + return; + vf = vw->vw_font; + if (vf == NULL) + return; + + VT_LOCK(vd); + if ((vd->vd_flags & (VDF_DEAD | VDF_TEXTMODE)) != 0) + goto out; + + vt_draw_logo_cpus = 0; + VT_UNLOCK(vd); + + vt_termsize(vd, vf, &size); + vt_winsize(vd, vf, &wsz); + + /* Resize screen buffer and terminal. */ + terminal_mute(tm, 1); + vtbuf_grow(&vw->vw_buf, &size, vw->vw_buf.vb_history_size); + terminal_set_winsize_blank(tm, &wsz, 0, NULL); + terminal_set_cursor(tm, &vw->vw_buf.vb_cursor); + terminal_mute(tm, 0); + + VT_LOCK(vd); + vt_compute_drawable_area(vw); + + if (vd->vd_curwindow == vw) { + vd->vd_flags |= VDF_INVALID; + vt_resume_flush_timer(vd, 0); + } + +out: + VT_UNLOCK(vd); +} + +static void +vt_init_logos(void *dummy) +{ + struct vt_device *vd; + struct vt_window *vw; + struct terminal *tm; + struct vt_font *vf; + struct winsize wsz; + term_pos_t size; + + if (!vty_enabled(VTY_VT)) + return; + if (!vt_splash_cpu) + return; + + tm = &vt_consterm; + vw = tm->tm_softc; + if (vw == NULL) + return; + vd = vw->vw_device; + if (vd == NULL) + return; + vf = vw->vw_font; + if (vf == NULL) + return; + + VT_LOCK(vd); + KASSERT((vd->vd_flags & VDF_INITIALIZED) != 0, + ("vd %p not initialized", vd)); + + if ((vd->vd_flags & (VDF_DEAD | VDF_TEXTMODE)) != 0) + goto out; + if (vd->vd_height <= vt_logo_sprite_height) + goto out; + + vt_draw_logo_cpus = 1; + VT_UNLOCK(vd); + + vt_termsize(vd, vf, &size); + vt_winsize(vd, vf, &wsz); + + /* Resize screen buffer and terminal. */ + terminal_mute(tm, 1); + vtbuf_grow(&vw->vw_buf, &size, vw->vw_buf.vb_history_size); + terminal_set_winsize_blank(tm, &wsz, 0, NULL); + terminal_set_cursor(tm, &vw->vw_buf.vb_cursor); + terminal_mute(tm, 0); + + VT_LOCK(vd); + vt_compute_drawable_area(vw); + + if (vd->vd_curwindow == vw) { + vd->vd_flags |= VDF_INVALID; + vt_resume_flush_timer(vd, 0); + } + + callout_init(&vt_splash_cpu_callout, 1); + callout_reset(&vt_splash_cpu_callout, vt_splash_cpu_duration * hz, + vt_fini_logos, NULL); + +out: + VT_UNLOCK(vd); +} +SYSINIT(vt_logos, SI_SUB_CPU + 1, SI_ORDER_ANY, vt_init_logos, NULL); |
