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- Path: imaginet.fr!usenet
- From: yeproy@imaginet.fr (Yann-Erick Proy)
- Newsgroups: comp.sys.amiga.emulations
- Subject: Re: SS and CyberGraphX
- Date: 21 Feb 1996 22:06:42 GMT
- Organization: ImagiNET
- Message-ID: <2087.6625T1329T1437@imaginet.fr>
- References: <4gacel$j6o@newsstand.cit.cornell.edu> <787.6625T1056T2167@netspace.net.au>
- NNTP-Posting-Host: national06.imaginet.fr
- X-Newsreader: THOR 2.22 (Amiga;TCP/IP) *UNREGISTERED*
-
- Paul Dossett wrote:
-
- >>Is there any way to keep SS from trashing other CyberGraphX screens? As
- >>I understand it, this happens because SS writes directly into the card memory
- >>and cannot redirect it's drawing into another buffer when another screen is
- >>displayed. Is there a way to "stop" shapeshifter when you switch to another
- >>CGX screen?
- >
- > Ctrl-Tab. Jesus, doesn't *anybody* read the docs?
-
- He did probably, as I did myself:
-
- <<
- Question:
- When I switch from the running emulation to my workbench screen,
- parts of the screen get overwritten with Macintosh graphics.
-
- Answer:
- Sadly, there is no solution for this. Press <Ctrl><Tab> before switching
- screens and take care that no Macintosh program is drawing on the screen
- as long as the Workbench screen is in the front to minimize the effect.
- If you can live with a graphics slowdown, you may also activate the
- gadget "Refresh always" in the graphics settings.
- >>
-
- As a matter of fact, having a graphics board and running Shapeshifter on a
- 8 bits screen allows the emulated Mac to access directly the video RAM in
- chunky pixel mode, which is much more faster than doing c2p conversions
- before writing into Amiga planar screens.
-
- Assuming this, it comes to mind that nothing could prevent the Mac from
- trashing the frontmost Amiga screen, since the intermediate "refresh" is
- bypassed. So it happens with my Picasso indeed, under stock Picasso software.
-
- As I stated before, MCP 1.10 pretends to be a solution to this problem.
- Among its numerous features, MCP can take advantage of it's screen manager
- to freeze Shapeshifter's task when its screen is not the frontmost. Alas
- I can't get it to work on my system: whenever Amiga screens are in the
- frontground, the Mac may still trash their content and I have been able to
- check that Shapeshifter's main task is still claiming the CPU.
-
-
- Regards,
-
- Yann
- Contradicting Paul Dosset again... Now I'm sure I'm dead! ;-)
-
- --
- Yann-Erick Proy yeproy@imaginet.fr - Yann-Erick.Proy@Imag.fr
- A2000/PPS040/Picasso/USR28k Quantum730/Maxtor330/Toshiba4x/Cipher150
-
-
-