Hey everyone,
I pushed a new version of ASCPIX.CO to my Personal Libraries section.
I found a couple of obscure bugs with AsciiPixels that would sometimes
cause an image to wrap from the bottom of the LCD to the top instead of
being cropped. Plus a render error with one of the opimization modes in
pbm2ap. Most likely nobody would have found any of this yet (especially
since pbm2ap wasn't previously published).
I added the source and a Makefile for pbm2ap, the utility that converts
from a PBM (Pixel BitMap) format to AsciiPixels format. You will have to
build this yourself, though it should be as simple as a 'make' under
Linux or Mac. For Windows, maybe use Cygwin?
To use pbm2ap, export a black-and-white image of any size (that will fit
on the LCD) to a PBM file, or use Imagemagik to convert it. Then use
pbm2ap to convert it:
./pbm2ap image.pbm image.do
The resulting image.do file will contain the AsciiPixels encoded
string. This file can either be copied to the M100/102 and rendered using
F$="IMAGE.DO"
call 58000,3,VARPTR(F$)
Or the string can be copied and assigned to a string (see ap_doc.txt for
API details). In addition, the pbm2ap has two options that improve
compression:
-u option Causes pbm2ap to also use the upper 128 ASCII characters
for encoding
-r option Causes pbm2ap to use ALL 256 ASCII characters for
encoding. This is useful only for embedding images in an OptROM image.
I also add a super simple AsciiPixels demo application.
Ken
