4 ms·
It may take less time actually since it can be parallelized. PNG's big problem is it's serial.
by edflsafoiewq 4y ago
It may take less time actually since it can be parallelized. PNG's big problem is it's serial.
- lifthrasiir 4y agoIn fact, Apple introduced its own extension chunk to PNG to enable parallel decoding, by splitting IDAT into two halves, put a zlib sync flush between them and record the offset to the second half [1]. This kind of split is bulit into JPEG XL. [1] https://www.hackerfactor.com/blog/index.php?/archives/895-Connecting-the-iDOTs.html#c4809 https://www.hackerfactor.com/blog/index.php?/archives/895-Co...