MESSAGE
| DATE | 2021-08-30 |
| FROM | Lee Shallis
|
| SUBJECT | Subject: [Hangout - NYLXS] [png-mng-implement] Own implementation
|
I've been implementing my own code for loading & rendering PNGs, I've
managed to get the filters correct for 8 bit values (or working
individually, or both) but when I went to test on a PNG made for 4 bit
values and using all filters in one file I get a corrupted image that
resembles the target image, I've made a post about it here:
https://cboard.cprogramming.com/c-programming/180516-final-filter-test-failing-post1302846.html#post1302846
Since the other test images came out correctly I doubt it's my
implementation of zlib but it could also be that, either way I'd like
someone to take a look at my code here:
https://gitlab.com/awsdert/glengine/-/tree/main/view
And tell me if they see anything that would be a problem in regards
defiltering the data
Btw the images I'm currently testing with are here:
http://www.schaik.com/pngsuite/pngsuite_fil_png.html
The one that fails is just the last one that looks like a ball
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