def mask.rect

gralha-coverage@0.1.0.1 · cover.bend:1228

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

1228def mask.rect(+width: U32, +height: U32, +box: CovBox, +trees: Bool) -> CovMask:
1229  CovBox{x0, y0, x1, y1} = box
1230  +gx = F32.to_u32(U.clamp(x0, 0.0, U32.to_f32(width)))
1231  +gy = F32.to_u32(U.clamp(y0, 0.0, U32.to_f32(height)))
1232  +ex = F32.to_u32(U.clamp(x1, 0.0, U32.to_f32(width)))
1233  +ey = F32.to_u32(U.clamp(y1, 0.0, U32.to_f32(height)))
1234  +w = (ex - gx : U32)
1235  +h = (ey - gy : U32)
1236  +depth = depth.for(U.choose(U32, U32.is_gt(w, h), w, h), 1, 0n)
1237  U.branch(CovMask, U32.is_ge(gx, ex) || U32.is_ge(gy, ey), _ => CovMask{0, 0, 0, 0, 0, 0n, CovTreed{CovFlat{0.0}}, True{}},
1238    _ => CovMask{gx, gy, w, h, U32.shln(1, depth), depth, rect.data(trees, depth, w, h), True{}})