Png.png.depth.valid: def of gralha-png-decode@0.1.0.1
Import: import gralha-png-decode@0.1.0.1/png.bend as Png
Lines 50-52 of gralha-png-decode@0.1.0.1/png.bend: https://jend.leeeet.dev/read.txt?path=gralha-png-decode@0.1.0.1/png.bend&start_line=50&end_line=52

import Base
import gralha-text-scan@0.1.0.1/scan.bend as U

def png.depth.valid(+kind: U32, +depth: U32) -> Bool:
  +small = U32.is_eq(depth, 1) || U32.is_eq(depth, 2) || U32.is_eq(depth, 4) || U32.is_eq(depth, 8)
  U.choose(Bool, U32.is_eq(kind, 0), small || U32.is_eq(depth, 16), U.choose(Bool, U32.is_eq(kind, 3), small, (U32.is_eq(kind, 2) || U32.is_eq(kind, 4) || U32.is_eq(kind, 6)) && (U32.is_eq(depth, 8) || U32.is_eq(depth, 16))))

Uses (6):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool.and
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool.or
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.is_eq
  https://jend.leeeet.dev/definition.txt?path=gralha-text-scan@0.1.0.1/scan.bend&name=choose