Author : Olivier Langlois <olanglois@sympatico.ca>

The graph2d.h file goes in the system/i386 directory

Here is some numbers
from the VC++ profiler to put in evidence the performance boost with the new
draw_line function in assembler (almost 6 times faster):

Without assembler:
        Func          Func+Child           Hit
        Time   %         Time      %      Count  Function
---------------------------------------------------------
    1113.642  11.8     1591.912  16.9  1787454 csGraphics2D::DrawPixel16(int,int,int) (graph2d.obj)
    1043.590  11.1     1587.968  16.9        1 _DirectDrawEnumerateA@8 (ddraw.dll)
     789.272   8.4     1526.828  16.2    29997 istream::operator>>(float &) (istrflt.obj)
     746.497   7.9     2449.607  26.0   156111 csGraphics2D::DrawLine(int,int,int,int,int) (graph2d.obj)

With assembler:
        Func          Func+Child           Hit
        Time   %         Time      %      Count  Function
---------------------------------------------------------
    4521.136  20.5     4521.136  20.5      158 SysGraphics2D::Print(class csRect *) (win32.obj)
    3123.300  14.1     9866.318  44.7  1450914 wfLine::draw(class csGraphics3D *,class Camera *) (wirefrm.obj)
    2955.659  13.4     3706.859  16.8  1450914 csGraphics2D::DrawLine(int,int,int,int,int) (graph2d.obj)
    2366.681  10.7     6073.540  27.5  1450914 csGraphics3D::DrawLine(class Vector3 &,class Vector3 &,int) (graph3d.obj)
    1313.554   5.9     1359.364   6.2        1 _DirectDrawEnumerateA@8 (ddraw.dll)
    1149.264   5.2     1149.264   5.2      158 csGraphics2D::Clear(int) (graph2d.obj)