Want to see previews (thumbnails) of your #iff #ilbm HAM pics and brushs on Windows ? Install this:
https://papas-best.com/ilbmthumbnails_en
See the content of #Amiga picture files directly in Windows Explorer. Runs on Windows 7 or later.
Supported extensions: .IFF, .ILBM, .ACBM, .PBM, .LBM, .HAM, .HAM6, .HAM8, .IFF24…
Of course, work with PydPainter Sys filereq (check Prefs)
Amiga IFF to Bitplane converter: iff2bpl 1.0
FF2bpl converts IFF-ILBM images into various formats that are important for programmers or pixel artists:
The open source tool Iff2Bpl converts ILBM image files into raw (interleaved) bitplanes, which can then be integrated into games or applications by developers. The author only provides the source code, interested parties must build the executable version themselves.
Just for fun I'm writing an #ILBM impl. for #Qt (QImageIOPlugin). I'm having trouble with the PCHG chunk. Any #Amiga dev/hobbyist here who might have a clue what's wrong? My code:
parsing: https://github.com/panzi/qilbm/blob/4222c4bdf5b81ab67fc68b3647ca231d1685d53a/src/ILBM.cpp#L865-L1097
rendering: https://github.com/panzi/qilbm/blob/4222c4bdf5b81ab67fc68b3647ca231d1685d53a/src/ILBM.cpp#L1297-L1346
sample file: https://sembiance.com/fileFormatSamples/image/iffILBM/pchgcmp.iff
Other impl. I've looked at and can't finde the difference to:
https://aminet.net/package/dev/misc/PCHGLib14 (includes 2 images that *do* work)
https://fossies.org/linux/netpbm/converter/ppm/ilbmtoppm.c line 1596 and onward, which is used by #ImageMagick. #RetroComputing
A long time ago (11 years ago), I wrote an JavaScript library to display IFF/ILBM files in a browser, surprisingly, it still works…
#amiga #iff #ilbm #retrocomputing #imageprocessing #holdandmodify
One ironic thing I realised while implementing a parser for the various original QuickTime codecs used for compressing images is that Amiga ILBM files with their bitplanes and Packbit compression would have fitted in perfectly. Now I wonder how hard it would be to implement an ILBM codec for 68k QuickTime. #retrocomputing #amiga #iff #ilbm #quicktime #quickdraw #classicmac #imageprocessing
11 years ago on my blog: the HAM problem https://wiesmann.codiferes.net/wordpress/archives/17619 #amiga #imageprocessing #ilbm #retrocomputing
11 years ago on my blog, parsing and displaying Amiga ILBM files in the browser https://wiesmann.codiferes.net/wordpress/archives/17256 #amiga #iff #ilbm #retrocomputing #javascript
