SDL and blitting; wrong address

Daniel Watkins danielw at ns.sympatico.ca
Wed Apr 1 03:53:44 PST 1998


I think I'm not the person your email was intended for, I visited
devolution yesterday, and I believe I signed myself up for news updates,
but that was all. I guess the email addresses got mixed up somehow.
All the best!


At 10:01 AM 4/1/98 +0200, you wrote:
>
>
>On Tue, 31 Mar 1998, Sam Lantinga wrote:
>
>> > Anyway,
>> > thanks for opening up the blitter under Windows, at least
>> 
>> No problem.  Remember, you need to create your surface with the same format
>> as the video surface, and create both in video memory for the hw blit to
work.
>
>Um... Do you enforce that behaviour? If you do, then I would suggest
>you leave it to the DirectDraw driver. There is at least a slight
>possibility that some driver writers support such blits (at least
>that's what I've gathered from some talk over on rec.games.
>programmer).
>
>Also, does SDL support double buffering? I took a quick peek through
>the DirectX source yesterday, and it looked as if you never call
>Flip()... Again, if you don't, then in my opinion, that might be
>worth investigating. Refreshsynchronized double buffering is always
>neat to have around..
>
>/Emil
>
>
         Daniel Watkins
          Chief of R&D
      DynaGen Systems Inc.
       80-A Marine Drive
    Sydport Industrial Park
  Sydney, Nova Scotia, B1P 6J1
Ph.(902)562-0133 Fax(902)5670633



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