I'm not that used to the GIMP codebase, so I'm posting this here so maybe you guys can give me a hand. By far, the largest performance problem with OpenCL in GIMP right now is that the processing graph is evaluated in regions that are the size of a tile (i.e. 128x64), the problem is that you can imagine the amount of overhead to setup OpenCL to work just on a 128x64 image each time. It's not necessary to change the tile size because OpenCL in GEGL works in the linearized image anyway, so I just want to change the processing region. So, I've been trying to make the evaluation size independent from the tile size, but I got stuck in the following problem: gegl_node_blit is being called on per-tile basis inside gimp_tile_handler_projection_validate. I guess I could hack the function to make it process the whole dirty region at the first time, but that's maybe not the better approach, as we are going to do unnecessary work by processing tiles that are not currently in the view. So what do you think is the best way to do this? Victor _______________________________________________ gimp-developer-list mailing list gimp-developer-list@xxxxxxxxx https://mail.gnome.org/mailman/listinfo/gimp-developer-list
