Got it. So DrvXXX is still the final leaves. Thank you very much ：） > On Oct 31, 2016, at 5:57 PM, Frediano Ziglio <fziglio@xxxxxxxxxx> wrote: > >> >> Hi experts, >> >> Recently I’m studying QXL XDDM driver to see how the display are >> accelerated. >> >> One thing I do not understand is that I thought some updates should be >> missing on clients. >> Say in the implementation of DrvBitBlt function, if it is not supported. >> the implemention will punt to EngBitBlt. >> >> However, in such case, no QXL command is pushed to cmd ring. So how does >> spice client notice the frame buffer change >> made by EngBitBlt? >> >> Can anyone help provide guidance on this? >> >> Thanks. > > Hi, > basically when EngBitBlt is called Windows implements the command > using different calls so basically EngBitBlt will call others Drv* functions > to implement DrvBitBlt for QXL driver. That Drv* functions will push commands > to the ring. > > Frediano _______________________________________________ Spice-devel mailing list Spice-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/spice-devel