BitBlt in landscape mode
- From: "A Grosz" <grosza@xxxxxxxxxxx>
- Date: 23 Oct 2005 06:37:08 -0700
Hi all,
I got my app running kind of ok on a 2003 SE Pocket PC (520 MHz).
It's doing BitBlt's (at least) 50 times per second and the performance
although not outstanding, is still sufficient.
(For the record: the bitmap is a DIB created with a CreateDibsection
from the parameters of a CreateCompatibleBitmap call, .)
Now I want it to be usable in landscape mode, too.
Here comes the problem: when the app is started in landscape,
the whole thing slows down to a crawl... in portrait mode I am
normally getting about 85 fps, but only 45 in landscape mode.
I guess, it could be faster with GAPI, but that's kind of broken in
2003 SE as I see? GETRAWFRAMEBUFFER isn't really good either,
since it might not be supported by all PPC's around.
So, how could I speed up these BitBlt's in landscape mode?
Cheers,
Attila
.
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