--- /dev/null
+/* fedora-fade-in.c - boot splash plugin
+ *
+ * Copyright (C) 2007 Red Hat, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+ * 02111-1307, USA.
+ *
+ * Written by: Ray Strode <rstrode@redhat.com>
+ */
+#include "config.h"
+
+#include <assert.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <math.h>
+#include <signal.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <sys/ioctl.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <values.h>
+#include <unistd.h>
+
+#include "ply-boot-splash-plugin.h"
+#include "ply-event-loop.h"
+#include "ply-frame-buffer.h"
+#include "ply-image.h"
+#include "ply-utils.h"
+
+#include <linux/kd.h>
+
+#ifndef FRAMES_PER_SECOND
+#define FRAMES_PER_SECOND 50
+#endif
+
+struct _ply_boot_splash_plugin
+{
+ ply_event_loop_t *loop;
+ ply_frame_buffer_t *frame_buffer;
+ ply_image_t *image;
+
+ int console_fd;
+ double start_time;
+};
+
+ply_boot_splash_plugin_t *
+create_plugin (void)
+{
+ ply_boot_splash_plugin_t *plugin;
+
+ plugin = calloc (1, sizeof (ply_boot_splash_plugin_t));
+ plugin->console_fd = -1;
+ plugin->start_time = 0.0;
+
+ plugin->frame_buffer = ply_frame_buffer_new (NULL);
+ plugin->image = ply_image_new ("booting.png");
+
+ return plugin;
+}
+
+void
+destroy_plugin (ply_boot_splash_plugin_t *plugin)
+{
+ if (plugin == NULL)
+ return;
+
+ ply_image_free (plugin->image);
+ ply_frame_buffer_free (plugin->frame_buffer);
+ free (plugin);
+}
+
+static bool
+set_graphics_mode (ply_boot_splash_plugin_t *plugin)
+{
+ assert (plugin != NULL);
+
+ return true;
+
+ if (ioctl (plugin->console_fd, KDSETMODE, KD_GRAPHICS) < 0)
+ return false;
+
+ return true;
+}
+
+static void
+set_text_mode (ply_boot_splash_plugin_t *plugin)
+{
+ assert (plugin != NULL);
+
+ ioctl (plugin->console_fd, KDSETMODE, KD_TEXT);
+}
+
+static bool
+open_console (ply_boot_splash_plugin_t *plugin)
+{
+ assert (plugin != NULL);
+
+ plugin->console_fd = open ("/dev/tty0", O_RDWR);
+
+ if (plugin->console_fd < 0)
+ return false;
+
+ return true;
+}
+
+static void
+close_console (ply_boot_splash_plugin_t *plugin)
+{
+ close (plugin->console_fd);
+ plugin->console_fd = -1;
+}
+
+static void
+animate_at_time (ply_boot_splash_plugin_t *plugin,
+ double time)
+{
+ ply_frame_buffer_t *buffer;
+ ply_image_t *image;
+ ply_frame_buffer_area_t area;
+ uint32_t *data;
+ long width, height;
+ static double last_opacity = 0.0;
+ double opacity = 0.0;
+
+ buffer = plugin->frame_buffer;
+ image = plugin->image;
+
+ data = ply_image_get_data (image);
+ width = ply_image_get_width (image);
+ height = ply_image_get_height (image);
+
+ ply_frame_buffer_get_size (buffer, &area);
+ area.x = (area.width / 2) - (width / 2);
+ area.y = (area.height / 2) - (height / 2);
+ area.width = width;
+ area.height = height;
+
+ opacity = .5 * sin ((time / 4) * (2 * M_PI)) + .8;
+ opacity = CLAMP (opacity, 0, 1.0);
+
+ if (fabs (opacity - last_opacity) <= DBL_MIN)
+ return;
+
+ last_opacity = opacity;
+
+ ply_frame_buffer_pause_updates (buffer);
+ ply_frame_buffer_fill_with_color (buffer, &area, 0.1, 0.1, .7, 1.0);
+ ply_frame_buffer_fill_with_argb32_data_at_opacity (buffer, &area,
+ 0, 0, width, height,
+ data, opacity);
+ ply_frame_buffer_unpause_updates (buffer);
+}
+
+static void
+on_timeout (ply_boot_splash_plugin_t *plugin)
+{
+ struct itimerval timer;
+ long sleep_time;
+
+ double now;
+
+ now = ply_get_timestamp ();
+ animate_at_time (plugin,
+ now - plugin->start_time);
+ sleep_time = 1000000 / FRAMES_PER_SECOND;
+ sleep_time = MAX (sleep_time - ((ply_get_timestamp () - now) / 1000000),
+ 10000);
+
+ timer.it_value.tv_sec = 0;
+ timer.it_value.tv_usec = sleep_time;
+ timer.it_interval.tv_sec = 0;
+ timer.it_interval.tv_usec = sleep_time;
+ setitimer (ITIMER_REAL, &timer, NULL);
+}
+
+static void
+start_animation (ply_boot_splash_plugin_t *plugin)
+{
+ struct itimerval timer;
+ double interval;
+
+ assert (plugin != NULL);
+ assert (plugin->loop != NULL);
+
+ ply_event_loop_watch_signal (plugin->loop, SIGALRM,
+ (ply_event_handler_t) on_timeout, plugin);
+
+ interval = 1000000.0 / FRAMES_PER_SECOND;
+ timer.it_value.tv_sec = 0;
+ timer.it_value.tv_usec = interval;
+ timer.it_interval.tv_sec = 0;
+ timer.it_interval.tv_usec = interval;
+
+ setitimer (ITIMER_REAL, &timer, NULL);
+
+ plugin->start_time = ply_get_timestamp ();
+ ply_frame_buffer_fill_with_color (plugin->frame_buffer, NULL,
+ 0.1, 0.1, .7, 1.0);
+}
+
+static void
+stop_animation (ply_boot_splash_plugin_t *plugin)
+{
+ struct itimerval timer;
+
+ assert (plugin != NULL);
+ assert (plugin->loop != NULL);
+
+ timer.it_interval.tv_sec = 0;
+ timer.it_interval.tv_usec = 0;
+ timer.it_value.tv_sec = 0;
+ timer.it_value.tv_usec = 0;
+
+ setitimer (ITIMER_REAL, &timer, NULL);
+
+ ply_event_loop_stop_watching_signal (plugin->loop, SIGALRM);
+
+ ply_frame_buffer_fill_with_color (plugin->frame_buffer,
+ NULL, 0.0, 0.0, 0.0, 1.0);
+}
+
+bool
+show_splash_screen (ply_boot_splash_plugin_t *plugin)
+{
+ assert (plugin != NULL);
+ assert (plugin->image != NULL);
+ assert (plugin->frame_buffer != NULL);
+
+ if (!ply_image_load (plugin->image))
+ return false;
+
+ if (!ply_frame_buffer_open (plugin->frame_buffer))
+ return false;
+
+ if (!open_console (plugin))
+ return false;
+
+ if (!set_graphics_mode (plugin))
+ {
+ ply_save_errno ();
+ close_console (plugin);
+ ply_restore_errno ();
+ return false;
+ }
+
+ start_animation (plugin);
+
+ return true;
+}
+
+void
+update_status (ply_boot_splash_plugin_t *plugin,
+ const char *status)
+{
+ assert (plugin != NULL);
+}
+
+void
+hide_splash_screen (ply_boot_splash_plugin_t *plugin)
+{
+ assert (plugin != NULL);
+
+ stop_animation (plugin);
+ ply_frame_buffer_close (plugin->frame_buffer);
+}
+
+static void
+detach_from_event_loop (ply_boot_splash_plugin_t *plugin)
+{
+ plugin->loop = NULL;
+}
+
+void
+attach_to_event_loop (ply_boot_splash_plugin_t *plugin,
+ ply_event_loop_t *loop)
+{
+ plugin->loop = loop;
+
+ ply_event_loop_watch_for_exit (loop, (ply_event_loop_exit_handler_t)
+ detach_from_event_loop,
+ plugin);
+}
+
+ply_boot_splash_plugin_interface_t *
+ply_boot_splash_plugin_get_interface (void)
+{
+ static ply_boot_splash_plugin_interface_t plugin_interface =
+ {
+ .create_plugin = create_plugin,
+ .destroy_plugin = destroy_plugin,
+ .show_splash_screen = show_splash_screen,
+ .update_status = update_status,
+ .hide_splash_screen = hide_splash_screen,
+ .attach_to_event_loop = attach_to_event_loop
+ };
+
+ return &plugin_interface;
+}
+
+/* vim: set ts=4 sw=4 expandtab autoindent cindent cino={.5s,(0: */
projects / thirdparty / plymouth.git / commitdiff
