drawing speed problem

  • moz

    I'm using a pocketPC2003 with a wince4.1 system.
    And I'm using a small MFC program to test the library. I find it is very much slower than the programs in Window2000 system.
    I use glDrawArray() function to draw some lines, the drawing speed is about the same as that of GDI functions( e.g. PolyLine() ).
    But in Windows2000, I wrote the same program drawing some lines using openGL, and the drawing speed is very much faster than Windows GDI function.
    I don't know why it can't be so fast in wince.
    Do I need some other hardware of graphic driver support( e.g. directx ) ?
    What should I do to make it as fast as it could?