Jpeg.jpeg.idct.blocks: def of gralha-jpeg-decode@0.1.0.1
Import: import gralha-jpeg-decode@0.1.0.1/jpeg.bend as Jpeg
Lines 652-655 of gralha-jpeg-decode@0.1.0.1/jpeg.bend: https://jend.leeeet.dev/read.txt?path=gralha-jpeg-decode@0.1.0.1/jpeg.bend&start_line=652&end_line=655

import Base
import gralha-bytes@0.1.0.1/bytes.bend as Bin

def jpeg.idct.blocks(n: Nat, +index: U32, +cols: U32, +coefficients: Bin.Bytes, +quant: Bin.Bytes, out: Bin.Bytes) -> Bin.Bytes:
  match n:
    case 0n: out
    case 1n+d: jpeg.idct.blocks(d, U32.inc(index), cols, coefficients, quant, jpeg.idct.pixels(64n, 0, (index % cols * 8 : U32), (index / cols * 8 : U32), (cols * 8 : U32), jpeg.idct.rows(64n, 0, (index * 64 : U32), coefficients, quant), out))

Uses (9):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.div
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.inc
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.mod
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.mul
  https://jend.leeeet.dev/definition.txt?path=gralha-bytes@0.1.0.1/bytes.bend&name=Bytes
  https://jend.leeeet.dev/definition.txt?path=gralha-jpeg-decode@0.1.0.1/jpeg.bend&name=jpeg.idct.pixels
  https://jend.leeeet.dev/definition.txt?path=gralha-jpeg-decode@0.1.0.1/jpeg.bend&name=jpeg.idct.rows