Function remapPixels

remapPixels(
    pixels: Uint8ClampedArray,
    mapping: PaletteMapping,
    mode?: PaletteRemapMode,
): Uint8ClampedArray
The renderer-free core of a palette remap. In 'exact' mode (the default) a pixel is repainted only when it exactly matches one of mapping.from; every other pixel, including one close but not identical to a from colour, passes through unchanged. In 'nearest' mode every opaque pixel is repainted with the to colour of whichever from entry it is nearest to in RGB space. Alpha and fully transparent pixels are always left untouched. Exported on its own so the remap logic is unit-testable without a canvas or a texture.
Parameters
- pixels: Uint8ClampedArray
- mapping: PaletteMapping
- mode: PaletteRemapMode = 'exact'
Returns Uint8ClampedArray
Example
```
import { remapPixels } from '@datamoc/mw_games/two-d/render';

const pixels = new Uint8ClampedArray([255, 0, 255, 255, 10, 10, 10, 255]); // magenta, then dark grey
const out = remapPixels(pixels, { from: [0xff00ff], to: [0xff0000] }); // 'exact' by default
console.log([...out.slice(0, 4)]); // [255, 0, 0, 255] - the exact match repainted
console.log([...out.slice(4, 8)]); // [10, 10, 10, 255] - not a match, left alone
```
- Defined in src/two-d/render/PaletteRemap.ts:125