feat: Optimize avatar size multiplier for 2 << n px avatars

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Instead of 2/3 which is not optimal for 512 px avatars usually passed to Core, use the sequence 7/8,
6/8, 11/16, 10/16... to do "smaller" downscaling steps and reduce aliasing effects.

Before, it was discussed that just 3/4 can be used. However:
- If we repeat the downscaling step, we get `3 ** n` as a numerator and this way increase aliasing
  effects on each step. The same for 7/8. Better limit the numerator value.
- As we do downscaling in a loop only for avatars which aren't changed frequently, let's do
  "smaller" steps and start from 7/8.

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iequidoo

2026-02-02 01:09:32 -03:00

parent ef718bb869

commit f48792b5c2

3 changed files with 26 additions and 3 deletions

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