🔥 Pre-warm PNG Cache (Recommended)

Pre-warm the PNG decode cache before mounting the canvas to save 100–250ms on initialization.

import { prewarmPngBgrCacheAsync } from 'react-native-mask-segment-canvas';

async function openPaintScreen(originUrl: string, maskUrl: string) {
  await prewarmPngBgrCacheAsync([originUrl, maskUrl]);
  navigation.navigate('Paint', { originUrl, maskUrl });
}

Call prewarmPngBgrCacheAsync after download/extraction and before navigating to the paint screen for the best performance.