[gtk/wip/chergert/profiler-event-marks-4] profiler: add profiler marks for surface event delivery

[Christian Hergert <chergert src gnome org>]

commit 4d06ef5a393c9eafd52b7dbe62ae400d28082ce3
Author: Christian Hergert <chergert redhat com>
Date:   Thu Jun 13 12:37:16 2019 -0700

    profiler: add profiler marks for surface event delivery
    
    This gives us marks to track the duration of processing certain types of
    GdkEvent. It also provides some basic struct information in cases where
    having that information would likely be useful for debugging.

 gdk/gdksurface.c | 119 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 119 insertions(+)
---
diff --git a/gdk/gdksurface.c b/gdk/gdksurface.c
index 333c5d39a6..44c66a66cd 100644
--- a/gdk/gdksurface.c
+++ b/gdk/gdksurface.c
@@ -29,6 +29,7 @@
 
 #include "gdksurface.h"
 
+#include "gdkeventsprivate.h"
 #include "gdkrectangle.h"
 #include "gdkinternals.h"
 #include "gdkintl.h"
@@ -4056,9 +4057,122 @@ rewrite_event_for_toplevel (GdkEvent *event)
   g_set_object (&event->any.surface, surface);
 }
 
+#ifdef G_ENABLE_DEBUG
+static void
+add_event_mark (GdkEvent *event,
+                gint64    time,
+                guint64   duration)
+{
+  gchar *message = NULL;
+  const gchar *kind;
+  GEnumValue *value;
+  GdkEventType event_type;
+
+  event_type = gdk_event_get_event_type (event);
+  value = g_enum_get_value (g_type_class_peek_static (GDK_TYPE_EVENT_TYPE), event_type);
+  kind = value ? value->value_nick : NULL;
+
+  switch (event_type)
+    {
+    case GDK_MOTION_NOTIFY:
+      {
+        GdkEventMotion *motion = (GdkEventMotion *)event;
+        message = g_strdup_printf ("{x=%lf, y=%lf, state=0x%x}",
+                                   motion->x, motion->y, motion->state);
+        break;
+      }
+
+    case GDK_BUTTON_PRESS:
+      {
+        GdkEventButton *button = (GdkEventButton *)event;
+        message = g_strdup_printf ("{button=%u, x=%lf, y=%lf, state=0x%x}",
+                                   button->button, button->x, button->y, button->state);
+        break;
+      }
+
+    case GDK_BUTTON_RELEASE:
+      {
+        GdkEventButton *button = (GdkEventButton *)event;
+        message = g_strdup_printf ("{button=%u, x=%lf, y=%lf, state=0x%x}",
+                                   button->button, button->x, button->y, button->state);
+        break;
+      }
+
+    case GDK_KEY_PRESS:
+      {
+        GdkEventKey *key = (GdkEventKey *)event;
+        message = g_strdup_printf ("{keyval=%u, state=0x%x, hardware_keycode=%u key_scancode=%u group=%u 
is_modifier=%u}",
+                                   key->keyval, key->state, key->hardware_keycode, key->key_scancode, 
key->group, key->is_modifier);
+        break;
+      }
+
+    case GDK_KEY_RELEASE:
+      {
+        GdkEventKey *key = (GdkEventKey *)event;
+        message = g_strdup_printf ("{keyval=%u, state=0x%x, hardware_keycode=%u key_scancode=%u group=%u 
is_modifier=%u}",
+                                   key->keyval, key->state, key->hardware_keycode, key->key_scancode, 
key->group, key->is_modifier);
+        break;
+      }
+
+    case GDK_CONFIGURE:
+      {
+        GdkEventConfigure *config = (GdkEventConfigure *)event;
+        message = g_strdup_printf ("{x=%d, y=%d, width=%d, height=%d}",
+                                   config->x, config->y, config->width, config->height);
+        break;
+      }
+
+    case GDK_ENTER_NOTIFY:
+    case GDK_LEAVE_NOTIFY:
+    case GDK_TOUCHPAD_SWIPE:
+    case GDK_TOUCHPAD_PINCH:
+    case GDK_SCROLL:
+    case GDK_DRAG_ENTER:
+    case GDK_DRAG_LEAVE:
+    case GDK_DRAG_MOTION:
+    case GDK_DROP_START:
+    case GDK_TOUCH_BEGIN:
+    case GDK_TOUCH_UPDATE:
+    case GDK_TOUCH_END:
+    case GDK_TOUCH_CANCEL:
+    case GDK_PAD_BUTTON_PRESS:
+    case GDK_PAD_BUTTON_RELEASE:
+    case GDK_PAD_RING:
+    case GDK_PAD_STRIP:
+    case GDK_PAD_GROUP_MODE:
+    case GDK_GRAB_BROKEN:
+    case GDK_DELETE:
+    case GDK_DESTROY:
+    case GDK_FOCUS_CHANGE:
+    case GDK_PROXIMITY_IN:
+    case GDK_PROXIMITY_OUT:
+    case GDK_NOTHING:
+    case GDK_EVENT_LAST:
+    default:
+      break;
+    }
+
+  if (kind != NULL && message != NULL)
+    {
+      gchar *full_message = g_strdup_printf ("%s %s", kind, message);
+      gdk_profiler_add_mark (time * 1000L, duration * 1000L, "event", full_message);
+      g_free (full_message);
+    }
+  else
+    {
+      gdk_profiler_add_mark (time * 1000L, duration * 1000L, "event", message);
+    }
+
+  g_free (message);
+}
+#endif
+
 gboolean
 gdk_surface_handle_event (GdkEvent *event)
 {
+#ifdef G_ENABLE_DEBUG
+  gint64 begin_time = g_get_monotonic_time ();
+#endif
   gboolean handled = FALSE;
 
   if (check_autohide (event))
@@ -4077,6 +4191,11 @@ gdk_surface_handle_event (GdkEvent *event)
       g_signal_emit (gdk_event_get_surface (event), signals[EVENT], 0, event, &handled);
     }
 
+#ifdef G_ENABLE_DEBUG
+  if (gdk_profiler_is_running ())
+    add_event_mark (event, begin_time, g_get_monotonic_time () - begin_time);
+#endif
+
   return handled;
 }