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- Path: erinews.ericsson.se!usenet
- From: Jonas Elfstrom <info@plea.se>
- Newsgroups: comp.sys.amiga.programmer
- Subject: Re: No waitTOF under CyberGraphX!
- Date: Tue, 05 Mar 1996 13:27:51 +0000
- Organization: PLEA AB http://plea.se/
- Message-ID: <313C4157.7806@plea.se>
- References: <312DC215.5367@plea.se> <13213651@sourcery.han.de> <31319872.751@plea.se> <zp0e60aCMqF5Z1a@blank1.blanker.ruhr.de>
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- Peter Elzner wrote:
- >
- > jonas@plea.se (Jonas Elfstrom) wrote:
- >
- > > > Use the timer.device and hope to hell you get your rendering done
- > > > fast enough to avoid visual effects. No graphics card I know of propagates
- > > > sync signals to the API level.
- > >
- > > But how do I find the Vertical Blanking phase? I do not want to
- > > move graphics around while the beam is there... (flickers to much)
- >
- > Double-buffering.
- > One part of the screen is visible while you are drawing to the other part.
- > Then you swap the screens and start again...
-
- And how do the double-buffering routines know that the beam
- isn't passing by just as it swaps screen? Or does the swap screen
- thing always sync with vertical blanking?
-
- --
- / Jonas Elfstrom (5+ rows .sigs sux) jonas@plea.se \
- < Amiga, Linux, ISP, C, 680x0/6502. Guinness. Suede, Oasis, SP. >
- \ We are here to PLEAse you. +46 19 322010 http://www.plea.se/
-