Issue #976096: Fixed The selected image handling toolkit imageapi_optimize()...

Issue #976096: Fixed The selected image handling toolkit imageapi_optimize() can not correctly process imageapi_optimize_image_overlay().

imageapi_optimize.module

@@ -280,7 +280,6 @@ function _imageapi_optimize_exec($cmd, $dst) {
  * This function takes a dozens of miliseconds CPU times.
  */
 function _imageapi_optimize_get_methods() {
-  $funcs = get_defined_functions();
   $methods = array();
   $prefix = variable_get('imageapi_optimize_toolkit', '') .'_image_';
 
@@ -294,6 +293,7 @@ function _imageapi_optimize_get_methods() {
     }
   }
 
+  $funcs = get_defined_functions();
   foreach ($funcs['user'] as $func) {
     if (strpos($func, $prefix) === 0) {
       $method = substr($func, strlen($prefix));