Jpeg.jpeg.progressive.decode: def of gralha-jpeg-decode@0.1.0.1
Import: import gralha-jpeg-decode@0.1.0.1/jpeg.bend as Jpeg
Lines 353-363 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=353&end_line=363

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

def jpeg.progressive.decode(+component: JPEGComponent, +tables: List<&2, JPEGHuff>, +offset: U32, +stream: JPEGStream) -> JPEGBlock:
  JPEGComponent{id, h, v, quant, dc, ac, predictor, bw, bh, coefficients, samples} = component
  JPEGStream{data, position, word, count, JPEGSpectral{start, end, high, low, eob}, valid} = stream
  +p1 = U32.shln(1, U32.to_nat(low))
  U.branch(JPEGBlock, U32.is_eq(start, 0),
    _ => U.branch(JPEGBlock, U32.is_eq(high, 0), _ => jpeg.progressive.dc.first(jpeg.huff.read(jpeg.huff.find(tables, dc, False{}), stream), coefficients, predictor, offset, low), _ => jpeg.progressive.dc.refine(jpeg.bits(stream, 1), coefficients, predictor, offset, low)),
    _ => U.branch(JPEGBlock, U32.is_gt(eob, 0),
      _ => U.branch(JPEGBlock, U32.is_eq(high, 0), _ => JPEGBlock{jpeg.stream.eob(stream, (eob - 1 : U32)), coefficients, predictor},
        _ => jpeg.refined.block(jpeg.progressive.walk(start, end, 64, 0, offset, p1, JPEGBlock{jpeg.stream.eob(stream, (eob - 1 : U32)), coefficients, predictor}))),
      _ => U.branch(JPEGBlock, U32.is_eq(high, 0), _ => jpeg.progressive.first(start, end, offset, low, jpeg.huff.find(tables, ac, True{}), JPEGBlock{stream, coefficients, predictor}),
        _ => jpeg.progressive.refine(start, end, offset, p1, jpeg.huff.find(tables, ac, True{}), JPEGBlock{stream, coefficients, predictor}))))

Uses (24):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  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=Base/base.bend&name=U32.is_gt
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.shln
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.sub
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.to_nat
  https://jend.leeeet.dev/definition.txt?path=gralha-jpeg-decode@0.1.0.1/jpeg.bend&name=JPEGBlock
  https://jend.leeeet.dev/definition.txt?path=gralha-jpeg-decode@0.1.0.1/jpeg.bend&name=JPEGComponent
  https://jend.leeeet.dev/definition.txt?path=gralha-jpeg-decode@0.1.0.1/jpeg.bend&name=JPEGHuff
  https://jend.leeeet.dev/definition.txt?path=gralha-jpeg-decode@0.1.0.1/jpeg.bend&name=JPEGSpectral
  https://jend.leeeet.dev/definition.txt?path=gralha-jpeg-decode@0.1.0.1/jpeg.bend&name=JPEGStream
  https://jend.leeeet.dev/definition.txt?path=gralha-jpeg-decode@0.1.0.1/jpeg.bend&name=jpeg.bits
  https://jend.leeeet.dev/definition.txt?path=gralha-jpeg-decode@0.1.0.1/jpeg.bend&name=jpeg.huff.find
  https://jend.leeeet.dev/definition.txt?path=gralha-jpeg-decode@0.1.0.1/jpeg.bend&name=jpeg.huff.read
  https://jend.leeeet.dev/definition.txt?path=gralha-jpeg-decode@0.1.0.1/jpeg.bend&name=jpeg.progressive.dc.first
  https://jend.leeeet.dev/definition.txt?path=gralha-jpeg-decode@0.1.0.1/jpeg.bend&name=jpeg.progressive.dc.refine
  https://jend.leeeet.dev/definition.txt?path=gralha-jpeg-decode@0.1.0.1/jpeg.bend&name=jpeg.progressive.first
  https://jend.leeeet.dev/definition.txt?path=gralha-jpeg-decode@0.1.0.1/jpeg.bend&name=jpeg.progressive.refine
  https://jend.leeeet.dev/definition.txt?path=gralha-jpeg-decode@0.1.0.1/jpeg.bend&name=jpeg.progressive.walk
  https://jend.leeeet.dev/definition.txt?path=gralha-jpeg-decode@0.1.0.1/jpeg.bend&name=jpeg.refined.block
  https://jend.leeeet.dev/definition.txt?path=gralha-jpeg-decode@0.1.0.1/jpeg.bend&name=jpeg.stream.eob
  https://jend.leeeet.dev/definition.txt?path=gralha-text-scan@0.1.0.1/scan.bend&name=branch