Deluan a34be43042 perf(artwork): hand both hash encoders one NRGBA thumbnail ...

makeThumbnail emitted a premultiplied *image.RGBA, so thumbhash allocated and
un-premultiplied a full copy on every image while blurhash paid nothing. It now
emits *image.NRGBA, which thumbhash wants as-is, and blurhash reads that type
directly, premultiplying per pixel to keep its output identical.

thumbhash.Encode at the pipeline's 100x100 input:
  134200 -> 95300 ns/op, 56188 -> 15163 B/op, 37 -> 35 allocs/op
decodeArtwork on a 1000x1000 JPEG:
  5014796 -> 4973800 B/op, exactly the conversion that is gone

The scaler costs the same into either destination (7.33ms vs 7.34ms measured),
so no time is traded for this.

2026-07-31 17:34:14 -04:00

..

blurhash_bench_test.go

perf(artwork): hand both hash encoders one NRGBA thumbnail

2026-07-31 17:34:14 -04:00

blurhash_suite_test.go

feat(artwork): import blurhash encoder from #5797

2026-07-22 15:53:32 -04:00

blurhash_test.go

perf(artwork): hand both hash encoders one NRGBA thumbnail

2026-07-31 17:34:14 -04:00

blurhash.go

perf(artwork): hand both hash encoders one NRGBA thumbnail

2026-07-31 17:34:14 -04:00