const DXTN = require('dxtn');

// Get the RGBA8888 data from an array filled with DXT1 data
const rgba8888data = DXTN.decompressDXT1(width, height, rawDXTData);

// Convert RGBA8888 data to an DXT1 array
const dxtData = DXTN.compressDXT1(width, height, rawRGBA8888Data);