def filter.convolution.raw

gralha-svg-render@0.1.0.1 · svg.bend:4662

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

4662def filter.convolution.raw(+input: FilterInput, x: F32, y: F32, +linear: Bool) -> Img.Color:
4663  FilterInput{raster, region, alpha, standard} = input
4664  +stored = raster.is.linear(raster)
4665  +c = raster.pixel(raster, x, y)
4666  +converted = U.branch(Img.Color, U.choose(Bool, stored, linear, Bool.not(linear)), _ => c,
4667    _ => U.branch(Img.Color, stored, _ => color.from.linear(c), _ => color.space(c, True{})))
4668  U.choose(Img.Color, alpha, color.alpha.only(converted), converted)