Article View: comp.sys.amiga.tech
Article #3826Re: Using CPU instead of Blitter for speed
From: Karri Tapani Palovuori
Date: Thu, 07 Jun 1990 12:24
Date: Thu, 07 Jun 1990 12:24
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In article <3022@crash.cts.com> jcs@crash.cts.com (John Schultz) writes: >then blit the mask to each bitplane. If you want polygons that don't have >broken or coarse edges, you must re-outline the mask with lines using >the blitter. This is not necessary. You can draw the leftmost lines one bit too left and use exclusive fill mode. Further, with blitter optimized code you can draw polygons of any shape, including holes in them. This is a great advantage in some situations. I agree that the 68000 is sometimes faster than the blitter. But it really depends on the average polygon size and shape. But the speedup gained by faster processors is one of the strongest points supporting CPU-drawing. I think. > John Karri
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arc1-ca.pugleaf.net!utzoo!attcan!uunet!samsung!dali.cs.montana.edu!uakari.primate.wisc.edu!zaphod.mps.ohio-state.edu!usc!snorkelwacker!bloom-beacon!eru!luth!sunic!tut!kaakkuri!kp74615References:
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Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!samsung!dali.cs.montana.edu!uakari.primate.wisc.edu!zaphod.mps.ohio-state.edu!usc!snorkelwacker!bloom-beacon!eru!luth!sunic!tut!kaakkuri!kp74615 From: kp74615@kaakkuri.tut.fi (Karri Tapani Palovuori) Newsgroups: comp.sys.amiga.tech Subject: Re: Using CPU instead of Blitter for speed Message-ID: <13493@etana.tut.fi> Date: 7 Jun 90 12:24:43 GMT References: <1990Jun3.164446.12193@ameristar> <1990Jun4.134811.12142@watdragon.waterloo.edu> <30974@ut-emx.UUCP> <3022@crash.cts.com> Sender: News@tut.fi Reply-To: kp74615@kaakkuri.tut.fi (Karri Tapani Palovuori) Distribution: comp Organization: Tampere University of Technology, Finland Lines: 24