[Xquartz-dev] Main kumppa's CPU eater (XScreenSaver being slow)

Hi Everybody Jeremy, thanks for answer I will profile the hack on Leopard with latest X11 to see the bottleneck. Meanwhile I can right away name the main X11 API that's drives this hack - it's XCopyArea - previously it was specifically accelerated. The source and destination are the same window, that's why theoretically this hack should be very fast - we take pixels from window and copy them in the same window. P.S. XCopyArea emulation (window->window) is the major bottleneck for pure OS X port as well btw because there is no low level API in OS X that can do such blits. Best regards, Platon