504 B
504 B
Support an alpha channel. Improve the PNG interface. Global parameters to control encoder settings:
- Quantization level: quant 0
- Quantization level: quants 1-63
- Constant term
- Linear term
- Number of quants to keep, per tile.
- Whether to use wide or packed representation for the thumbnail block Interleave layers instead of having them consecutively. Maybe have a second instance of the global parameters block for the alpha channel. Actually support terminating early for "progressive" loads