gegl r2797 - in trunk: . operations/external

[ok svn gnome org]

Author: ok
Date: Mon Nov 24 00:26:20 2008
New Revision: 2797
URL: http://svn.gnome.org/viewvc/gegl?rev=2797&view=rev

Log:
* operations/external/v4l.c: (update), (process): made the v4l source
able to auto-update.


Modified:
   trunk/ChangeLog
   trunk/operations/external/v4l.c

Modified: trunk/operations/external/v4l.c
==============================================================================
--- trunk/operations/external/v4l.c	(original)
+++ trunk/operations/external/v4l.c	Mon Nov 24 00:26:20 2008
@@ -28,6 +28,8 @@
 gegl_chant_int  (height, _("Height"), 0, G_MAXINT, 240, _("Height for rendered image"))
 gegl_chant_int  (frame,  _("Frame"),  0, G_MAXINT, 0, 
         _("current frame number, can be changed to trigger a reload of the image."))
+gegl_chant_int  (fps,    _("FPS"),  0, G_MAXINT, 0, 
+        _("autotrigger reload this many times a second."))
 
 #else
 
@@ -191,6 +193,13 @@
   G_OBJECT_CLASS (gegl_chant_parent_class)->finalize (object);
 }
 
+static gboolean update (GeglOperation *operation)
+{
+  GeglRectangle bounds = gegl_operation_get_bounding_box (operation);
+  gegl_operation_invalidate (operation, &bounds, FALSE);
+  return TRUE;
+}
+
 static gboolean
 process (GeglOperation       *operation,
          GeglBuffer          *output,
@@ -199,6 +208,13 @@
   GeglChantO *o = GEGL_CHANT_PROPERTIES (operation);
   Priv       *p = (Priv*)o->chant_data;
   guchar     *capbuf;
+  static gboolean inited = FALSE;
+
+    if (!inited && o->fps != 0)
+      {
+        inited= TRUE;
+        g_timeout_add (1000/o->fps, update, operation);
+      }
 
   if (!p->active)
     return FALSE;