- srcSurf = screen->get_tex_surface(screen, pt, face, srcLevel, zslice);
- dstSurf = screen->get_tex_surface(screen, pt, face, dstLevel, zslice);
+ srcSurf = screen->get_tex_surface(screen, pt, face, srcLevel, zslice,
+ PIPE_BUFFER_USAGE_CPU_READ);
+ dstSurf = screen->get_tex_surface(screen, pt, face, dstLevel, zslice,
+ PIPE_BUFFER_USAGE_CPU_WRITE);