resample

Image resample of one or more slices (a Texture's texels, a Grid layer, each tile of a Raster) to a target size, with the FILTER specialization (bilinear, lanczos3, catmull_rom, nearest). Downscaling widens the filter by the shrink ratio so it averages what it drops. axis resamples width (0), height (1) or both (2); width then height gives the both-axes result up to float rounding. determinism: exact.

src holds slices images of sw x sh pixels, lanes f32 values a pixel, slice by slice with rows x fastest; dst holds the same layout at the output size (dw x sh, sw x dh or dw x dh) and is bound by the caller. The lanes laneBase to laneBase + laneCount - 1 (at most 16) are resampled and written; clampRange 1 holds each result to lo .. hi. One thread per output pixel of every slice, numbered gid.x + gid.y * num_workgroups.x * 64, so a dispatch past 65535 workgroups spreads over rows. The bindings are bound by list position.