two-step: introduce delayed startup

Many machines these days can boot in 5 seconds or less.
In those cases, there's little point in showing a boot splash.

This commit introduces a StartupDelay option to the two step
plugin to prevent it from displaying anything for a few seconds.

diff --git a/src/plugins/splash/two-step/plugin.c b/src/plugins/splash/two-step/plugin.c
index f48b41e1a16c46cf6cccb9fa2e053312dd9cb728..5dca355f859b30bd8b753d17e7f144d50f1f76c7 100644 (file)
--- a/src/plugins/splash/two-step/plugin.c
+++ b/src/plugins/splash/two-step/plugin.c
@@ -92,6 +92,8 @@ typedef struct
   ply_rectangle_t box_area, lock_area, watermark_area;
   ply_trigger_t *end_trigger;
   ply_image_t *background_image;
+
+  uint32_t is_blank : 1;
 } view_t;
 
 struct _ply_boot_splash_plugin
@@ -126,6 +128,9 @@ struct _ply_boot_splash_plugin
   ply_trigger_t *idle_trigger;
   ply_trigger_t *stop_trigger;
 
+  double start_time;
+  double startup_delay;
+
   uint32_t root_is_mounted : 1;
   uint32_t is_visible : 1;
   uint32_t is_animating : 1;
@@ -167,6 +172,7 @@ view_new (ply_boot_splash_plugin_t *plugin,
 
   view->label = ply_label_new ();
   view->message_label = ply_label_new ();
+  view->is_blank = true;
 
   return view;
 }
@@ -521,6 +527,7 @@ create_plugin (ply_key_file_t *key_file)
 {
   ply_boot_splash_plugin_t *plugin;
   char *image_dir, *image_path;
+  char *startup_delay;
   char *alignment;
   char *transition;
   char *transition_duration;
@@ -530,6 +537,8 @@ create_plugin (ply_key_file_t *key_file)
   srand ((int) ply_get_timestamp ());
   plugin = calloc (1, sizeof (ply_boot_splash_plugin_t));
 
+  plugin->start_time = ply_get_timestamp ();
+
   image_dir = ply_key_file_get_value (key_file, "two-step", "ImageDir");
 
   ply_trace ("Using '%s' as working directory", image_dir);
@@ -560,6 +569,13 @@ create_plugin (ply_key_file_t *key_file)
 
   plugin->animation_dir = image_dir;
 
+  startup_delay = ply_key_file_get_value (key_file, "two-step", "StartupDelay");
+  if (startup_delay != NULL)
+    plugin->startup_delay = strtod (startup_delay, NULL);
+  else
+    plugin->startup_delay = 5.0;
+  free (startup_delay);
+
   alignment = ply_key_file_get_value (key_file, "two-step", "HorizontalAlignment");
   if (alignment != NULL)
     plugin->animation_horizontal_alignment = strtod (alignment, NULL);
@@ -903,6 +919,35 @@ on_draw (view_t                   *view,
 
   plugin = view->plugin;
 
+  if (plugin->mode == PLY_BOOT_SPLASH_MODE_BOOT_UP)
+    {
+      double now;
+
+      now = ply_get_timestamp ();
+
+      if (now - plugin->start_time < plugin->startup_delay)
+        return;
+
+      if (view->is_blank)
+        {
+          ply_rectangle_t clip_area;
+
+          x = 0;
+          y = 0;
+          width = ply_pixel_display_get_width (view->display);
+          height = ply_pixel_display_get_height (view->display);
+
+          clip_area.x = 0;
+          clip_area.y = 0;
+          clip_area.width = width;
+          clip_area.height = height;
+          ply_pixel_buffer_pop_clip_area (pixel_buffer);
+          ply_pixel_buffer_push_clip_area (pixel_buffer,
+                                           &clip_area);
+          view->is_blank = false;
+        }
+    }
+
   draw_background (view, pixel_buffer, x, y, width, height);
 
   ply_pixel_buffer_get_size (pixel_buffer, &screen_area);