When running extract32 on indexed pngs that have less than 4 bits depth the rline number is off, resulting in an "invalid filter" error.
This is because the bit shifting takes too many numbers off. The rline is the same as the stride - 1 so I used that instead.
When running extract32 on indexed pngs that have less than 4 bits depth the rline number is off, resulting in an "invalid filter" error. This is because the bit shifting takes too many numbers off. The rline is the same as the
stride - 1so I used that instead.