+static gpointer _expose(GisCallback *callback, gpointer _self)
+{
+ GisPluginSrtm *self = GIS_PLUGIN_SRTM(_self);
+ g_debug("GisPluginSrtm: expose tiles=%p data=%p",
+ self->tiles, self->tiles->data);
+ if (LOAD_OPENGL)
+ gis_viewer_render_tiles(self->viewer, self->tiles);
+ return NULL;
+}
+