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Support Extended 80-Column Text/AppleColor Card's 160x192 mode #621

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tomcw opened this Issue Feb 2, 2019 · 3 comments

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tomcw commented Feb 2, 2019

Spun off from #523.

On Apple Ext80ColumnAppleColorCardHR Demo 1.dsk there are 2 images: SEASCAPE and LAKESHORE

Currently (at AppleWin 1.28.1) it looks like this:
corruptpic

I tried a quick hack (limiting the image to 560 pixels, so losing the right hand 80 pixels). The colours are right, but not the vertical black lines. I'll need to understand the DHGR look up table...

seascape

lakeshore

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tomcw commented Feb 2, 2019

NB. To display these pics, just CTRL+C from the main menu, then paste one of these lines:

&  LOAD "SEASCAPE": &  GR 4
&  LOAD "LAKESHORE": &  GR 4
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tomcw commented Feb 3, 2019

Commit 0458741 squashes the 640 px image into 560 px (losing every 8th px):

sea

lake

Good enough for now (since AFAIK nothing actually uses this 160-color mode). Closing.

@tomcw tomcw closed this Feb 3, 2019

@tomcw tomcw added this to the 1.28.2 milestone Feb 3, 2019

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tomcw commented Feb 3, 2019

btw, I checked the 4 Video-7 demo disks here:
ftp://ftp.apple.asimov.net/pub/apple_II/images/hardware/video/

But none contained 160-color pictures.

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