> > 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