> Thanks for the reply. One more question is the pointer returned by Lock() is > memory mapped ? Question is because even if i tried to rotate( or mirror > image) the surface with some algorithm(which requires memory copy) there is > also a performance difference for system memory surface and video memory > surface. In that case also system memory have the better performance.
The rotation of surface is made via copying the memory image (pixel after pixel). Of course, the system memory always faster (from CPU) than video one. If your hardware supported blitting with rotation you would get the excellent performance within video memory. -- Best Regards Nikita Egorov nik...@gmail.com nik...@varma-el.com _______________________________________________ directfb-dev mailing list directfb-dev@directfb.org http://mail.directfb.org/cgi-bin/mailman/listinfo/directfb-dev
