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def jpeg.idct.vertical

gralha-jpeg-decode@0.1.0.1 · jpeg.bend:639

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

639def jpeg.idct.vertical(n: Nat, +v: U32, +x: U32, +y: U32, +rows: List<&2, F32>, acc: F32) -> F32:
640  match n:
641    case 0n: acc
642    case 1n+d: jpeg.idct.vertical(d, U32.inc(v), x, y, rows, (acc + U.nth(rows, U32.to_nat((v * 8 + x : U32)), 0.0) * jpeg.idct.basis(y, v) : F32))

Uses (12)

Used by (1)