Re: [AD] About the speed of flat polygon primitives

[Thomas Fjellstrom <tfjellstrom@xxxxxxxxxx>]

On Thursday 27 September 2001 01:24, you wrote:
> > Is Windows the only platform that exhibits such a behaviour ? I can
> > hardly think that. Wouldn't this feature benefit the BeOS port and the
> > DGA2 driver too ?
>
> Could anyone do some testing, either with DGA2 or BeOS ? Just comparing the
> results given by the test program in hardware drawing mode vs those given
> in software drawing mode.
>
> I tried with DGA2 but unfortunately the driver doesn't accelerate anything
> for my video card (ATI Xpert@xxxxxxxxxx) :-(

DGA2 ./misc/cmplog.pl noaccel.log accel.log

DRAW_MODE_SOLID results:

        putpixel()                       = 98%
        hline()                          = 41%
        vline()                          = 82%
        line()                           = 13%
        rectfill()                       = 414%
        circle()                         = 21%
        circlefill()                     = 17%
        ellipse()                        = 25%
        ellipsefill()                    = 15%
        arc()                            = 17%
        triangle()                       = 14%


Accel:   hline() - 188961, textout() - 1116
Unaccel: hline() - 454380, textout() - 42359

I would say not all that good :(

Was tested at 640x480x16 DGA2 (Un)Accelerated.
(MMX, 3DNow was enabled)

-- 
Thomas Fjellstrom
tfjellstrom@xxxxxxxxxx
http://strangesoft.net