Wrong map results with an 8-bit PNG

Optiroc / SuperFamiconv

Flexible and composable tile graphics converter supporting Super Nintendo, Game Boy, Game Boy Color, Game Boy Advance, Mega Drive, PC Engine and WonderSwan formats.

MIT License

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Wrong map results with an 8-bit PNG #9

Closed clbr closed 5 years ago

clbr commented 5 years ago

This one may be harder to test for you than the others, since I can't share the test image.

Using an 8-bit source PNG (for mode 3, over 16 colors), the map subcommand misses some tiles. superfamiconv map -v -B8 --in-image $1 --in-palette $1.palette --in-tiles $1.tiles --out-data $1.map

The image does not have identical colors or a transparent index.

clbr commented 5 years ago

Looking at the dumps in hexdump, the missing tiles are not flipped in any way, so I wonder why it misses those. At least missing flipped tiles would be easy to figure out.

Optiroc commented 5 years ago

@clbr Interesting. Yeah, I would need example input to debug this.