Advantage of GpiDrawBits?

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#234

From: Martin Erzberger
Date: Tue, 04 Aug 1992 14:25

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Does anyone see the advantage(s) of the new GpiDrawBits call over the
GpiSetBitmapBits call? Maybe there is a totally new approach to display
a bitmap?
Until now, one had to create a memory device context, associate a bitmap
with it, then copy the bitmap into it (with GpiSetBitmapBits). This call
did also all the rendering etc. necessary. As the last step one used
GpiBitBlt to draw/scale etc. the bitmap.
As far I can see, the GpiDrawBits call combines the step of GpiSet...
and GpiBitBlt. Maybe one has to re-render the picture every time the
palette changes, then this approach makes sense, but I'm affraid that
it's very slow to re-render the picture every time one just wants to
zoom in or out.
Any ideas? Regards, Martin Erzberger

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Message-ID: <1992Aug4.142559.15039@ifi.unizh.ch>

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Newsgroups: comp.os.os2.programmer
Path: arc1-ca.pugleaf.net!sparky!uunet!sun-barr!ames!elroy.jpl.nasa.gov!usc!sol.ctr.columbia.edu!ira.uka.de!chx400!josef!erzberg
From: erzberg@ifi.unizh.ch (Martin Erzberger)
Subject: Advantage of GpiDrawBits?
Message-ID: <1992Aug4.142559.15039@ifi.unizh.ch>
Organization: University of Zurich, Department of Computer Science
Date: Tue, 4 Aug 92 14:25:59 GMT
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