💾 Archived View for mirrors.apple2.org.za › archive › apple.cabi.net › FAQs.and.INFO › GSOS › mmcode… captured on 2023-03-20 at 22:50:26.
⬅️ Previous capture (2023-01-29)
-=-=-=-=-=-=-
Path: news.uiowa.edu!news.physics.uiowa.edu!math.ohio-state.edu!howland.reston.ans.net!newsfeed.internetmci.com!info.ucla.edu!ihnp4.ucsd.edu!munnari.OZ.AU!news.uwa.edu.au!tartarus.uwa.edu.au!not-for-mail
From: jturner@tartarus.uwa.edu.au (Joseph Turner)
Newsgroups: comp.sys.apple2.programmer
Subject: Re: Polygons in Quickdraw?
Date: 12 Apr 1996 16:05:28 GMT
Organization: The University of Western Australia
Lines: 86
Message-ID: <4klv08$ok4@styx.uwa.edu.au>
References: <4kj0jb$4pa@styx.uwa.edu.au>
NNTP-Posting-Host: tartarus.uwa.edu.au
X-Newsreader: TIN [UNIX 1.3 950824BETA PL0]
Joseph Turner (jturner@tartarus.uwa.edu.au) wrote:
: Hello, I have got myself a bit of spare time, and I have decided to use
: it get a little bit more IIgs programming knowledge.I recently was looking
: at one of my friends programs(on an IBM..errrr) well anyway, he was using
: Polygons. And from his program I can see the power and advantages of using
: polygons, for example in 3d graphics. I have looked through the orcadefs
: and I can clearly see that there are functions for polygons, but I have no
: idea on how to access them. Could anybody supply me with a bit of basic
: code or a description on how to use this command/s.
: Also what I would love to know what to do is to do flicker free
: animation. I would like to do this using two drawing areas...ie screen
: flicking. How do I go about this? I tried to use the memory manager to
: reserve some memory, but it didn't work. It always crashed. I was loading
: in TLTstartup(I think I have spelt this incorrectly, but it is the first
: tool you start up), then I started up memory manager, and then I started
: up miscellanous tools. Then I tried to reserve $8000bytes.It did work. I
: didn't bother reserving 3 pages for quickdraw, could this be my problem?
: Well when I get on latter on my IIgs I'll follow up with the code that I
: tried.
: Thanks for any help.
:
: Happy computing!
: ******************************************************************************
: Joseph Turner
: Apple IIgs User, and proud of it.
: ******************************************************************************
Here is the assembly code that I was appending to the main c code to try
and startup tools and to then allocate some extra memory.
case on
copy e16.memory
mcopy dlog.macros
HandleLoc gequ 0
ToolsDP gequ HandleLoc+4
DrawHndLoc gequ ToolsDP+2
Startup start
using StartData
;Starting Code
phk
plb
_TLStartUp
wordresult
_MMstartup
pla
sta MasterID
ora #$0100
sta OurID
_MTStartup
longresult
pushlong #$8000
pushword OurID
pushword #0
phd
phd
_NewHandle
pla
sta DrawHndLoc
pla
sta DrawHndLoc + 2
rts
end
StartData data
MasterID ds 2
OurID entry
ds 2
GraphicMode equ $00
XClampMax equ 320
end
HOpe that helps.
thanks.
Joe