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- Path: informatik.tu-muenchen.de!fischerj
- From: fischerj@informatik.tu-muenchen.de (Juergen "Rally" Fischer)
- Newsgroups: comp.sys.amiga.programmer
- Subject: Re: Demo/game to OS frien
- Date: 15 Feb 1996 17:11:34 GMT
- Organization: Technische Universitaet Muenchen, Germany
- Distribution: world
- Message-ID: <4fvpg6$n0d@sunsystem5.informatik.tu-muenchen.de>
- References: <4fnqf8$f9p@sunsystem5.informatik.tu-muenchen.de> <84000105717841360800@BIRDLAND>
- NNTP-Posting-Host: hphalle5.informatik.tu-muenchen.de
- Originator: fischerj@hphalle5.informatik.tu-muenchen.de
-
-
- In article <84000105717841360800@BIRDLAND>, magicsn@birdland.es.bawue.de (Steffen Haeuser) writes:
- |>
- |> fischerj%informatik.tu-muenchen.de@INTERNET wrote :
- |>
- |> >
- |> >
- |> > In article <20000205714078190501@BIRDLAND>,
- |> > magicsn@birdland.es.bawue.de (Steffen Haeuser) writes:
- |> > |>
- |> > |> fischerj%informatik.tu-muenchen.de@INTERNET wrote :
- |> >
- |> > |> > slower compared to using OS alive and async blitter c2p via qblit.
- |> > |>
- |> > |> Well... but on most systems it is faster this way... (but if you bother... the
- |> >
- |> > You want to say "on most systems it's faster without blitter assistance" ?
- |> > noooo. As long as a cpu can't do c2p for free (up to now only 040+ can do
- |> > it dor free), blitterassistance will speed chunky games up.
- |>
- |> You said it. For 040+. There are such systems. And it is not THAT HARD to do
-
- well, I wouldn't call 040+ "on most systems" today ;)
-
- |> one more c2p ...
- |>
- |> >
- |> > |> c2p source format of Gloom Deluxe is published... write a c2p with qblit
- |> > |> yourselves...)
- |> >
- |> > I repeat I do not flame the c2p routines. I flame the interface which won't
- |> > allow blitter assistance.
- |>
- |> Well... tell me how you would like a interface for a c2p standard... for the
- |> use in rtgmaster.library :)
-
- the c2p routine is to set a flag if it is done. i.e. if the blitter
- is ready. The easy way is you just give a charpointer to the c2p
- routine. it'll set it to 1 when called and to 0 when ready (for
- example). Then do
-
- while(flag);
-
- to see if the buffer has been entirely converted bevore reusing
- it to render a new pic.
-
- on future hardware, this could also mean that the dma-controller
- just has finished doing the copy from fastmem to vram. who knows.
-
- For gloom running on A1200 you maybe can write a routine
- using blitterasistance without the flag, as you know in that
- special case how fast the blitter and how slow gloom is ;)
-
- |>
- |> Steffen Haeuser
- ------------------------------------------------------------------------
- fischerj@Informatik.TU-Muenchen.DE (Juergen "Rally" Fischer) =:)
-
-