Do an iteration of work for the processor.
Returns TRUE if there is more work to be done.
--- GeglProcessor *processor = gegl_node_new_processor (node, &roi); double progress;
while (gegl_processor_work (processor, &progress)) g_warning ("f%% complete", progress); g_object_unref (processor);
| this | |
| progress |
a location to store the (estimated) percentage complete. |