Comments (1)
CryptoCrocodile
commented on July 4, 2024
FWIW, it doesn't seem to be related to the deflate/libz code, I've swapped it out with libz and it still produces invalid PNGs. Also it seems to be related to a narrowing cast to int, as an RGB 8bpp image of 27000x27000 produces an invalid image (2.187.000.000 bytes) but a 26700x26700 image is still valid (2.138.670.000 bytes) so the 27000^2 image seems to overflow a signed integer somewhere.
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