Groups > comp.sys.apple2.programmer > #1363

Re: How Should I document Printing a DHGR image on an Apple II?

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From	"Bill Buckels" <bbuckels@mts.net>
Newsgroups	comp.sys.apple2, comp.sys.apple2.programmer
Subject	Re: How Should I document Printing a DHGR image on an Apple II?
Date	Sat, 25 Oct 2014 05:26:41 -0500
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Cross-posted to 2 groups.

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"Scott Alfter" <scott@alfter.diespammersdie.us> wrote:
>The bigger stumbling block is that the pixels on the HR and DHR screens are 
>grouped horizontally, but need to be grouped vertically for printing.

It's really easy to unmask these into individual pixels.

>BASIC would be intolerably slow at this sort of bit-mangling.

I think BASIC will need some help from ML. I'll get this working in C first 
and decompose it back down to BASIC with as few ML subroutines as possible.

The idea is to document DHGR graphics printing in step form with working 
examples. There isn't much incentive for anyone to use DHGR bitmapped 
graphics without providing some kind of target program. So far SlideShows, 
Movies, and Sprites for games and demos are on my radar (Jonas did a 
prototype movie recently) and I've done the other two prototypes... but 
printing applications expand the potential for a retro experience a great 
deal.

Thanks for your thoughts. You can jump-in and write part of this anytime you 
want. I may need some help with the ML routines for the BASIC examples when 
I get to them. The C code I can easily manage after I get the printer output 
routines fleshed-out.

Bill

Thread

How Should I document Printing a DHGR image on an Apple II? "Bill Buckels" <bbuckels@mts.net> - 2014-10-24 06:40 -0500
  Re: How Should I document Printing a DHGR image on an Apple II? scott@alfter.diespammersdie.us (Scott Alfter) - 2014-10-24 17:04 +0000
    Re: How Should I document Printing a DHGR image on an Apple II? "Bill Buckels" <bbuckels@mts.net> - 2014-10-25 05:26 -0500
      Re: How Should I document Printing a DHGR image on an Apple II? Antoine Vignau <antoine.vignau@laposte.net> - 2014-10-26 01:15 -0700
        Re: How Should I document Printing a DHGR image on an Apple II? "Bill Buckels" <bbuckels@mts.net> - 2014-10-26 04:12 -0500
          Re: How Should I document Printing a DHGR image on an Apple II? "Bill Buckels" <bbuckels@mts.net> - 2014-10-26 04:23 -0500
      Re: How Should I document Printing a DHGR image on an Apple II? scott@alfter.diespammersdie.us (Scott Alfter) - 2014-10-28 18:16 +0000
      Re: How Should I document Printing a DHGR image on an Apple II? scott@alfter.diespammersdie.us (Scott Alfter) - 2014-10-28 19:37 +0000
  Re: How Should I document Printing a DHGR image on an Apple II? "Bill Buckels" <bbuckels@mts.net> - 2014-10-24 19:43 -0500
    Re: How Should I document Printing a DHGR image on an Apple II? Steve Nickolas <usotsuki@buric.co> - 2014-10-25 02:30 +0000
    Re: How Should I document Printing a DHGR image on an Apple II? "Christopher G. Mason" <cgm1@my-deja.com> - 2014-10-24 23:01 -0400
      Re: How Should I document Printing a DHGR image on an Apple II? "Bill Buckels" <bbuckels@mts.net> - 2014-10-25 05:12 -0500
      Re: How Should I document Printing a DHGR image on an Apple II? scott@alfter.diespammersdie.us (Scott Alfter) - 2014-10-28 19:20 +0000
        Re: How Should I document Printing a DHGR image on an Apple II? "Bill Buckels" <bbuckels@mts.net> - 2014-10-28 16:24 -0500

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