Differential D2181 Diff 7150 head/sys/dev/vt/vt_cpulogos.c

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head/sys/dev/vt/vt_cpulogos.c

Property	Old Value	New Value
svn:eol-style	null	native \ No newline at end of property
svn:keywords	null	FreeBSD=%H \ No newline at end of property
svn:mime-type	null	text/plain \ No newline at end of property

				/*-
				* 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);