Clean images before doing a run.
Update TODO.
Use qdx to infer padding.

The border is unused for now.

I set padding to a specific color.
Add logging macro.
Add check_00().
Fix qdx and qdy computation.

Off-by-1 error.
Remove tiled image rotation.
Remove boundary check in rotate_pixel().

This check makes the last line invalid.
Round small deltas to 0.

Otherwise it triggers a small change.
Deactivate right padding.
Add check when building padding table.
Add logging lines.
Rotate to 360.
Deactivate last line / column.

This causes the check_00() and check_90() to fail.
Add right padding as mirror of left padding.
Do a memset for padding.