- in order to set cursor position SVGA_CURSOR_ON_SHOW has to be written to register SVGA_REG_CURSOR_ON.
- do not use alpha cursor because it does not support inverting of source pixels.
- Fixed wrong usage of if-statement inside switch-statement
- Sync at end of SCREEN_TO_SCREEN_BLIT so that app_server does not write to frame buffer while accelerated operation is still running.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23193 a95241bf-73f2-0310-859d-f6bbb57e9c96