import { WebPlatform } from './WebPlatform.js';
import type { PlatformSettings } from '../Platform.js';
import type { ImageResponse } from '../../textures/ImageTexture.js';
import type { ImageWorkerFactory } from './lib/ImageWorker.js';
/**
 * Legacy Web Platform implementation that uses Image() instead of createImageBitmap
 *
 * @remarks
 * This platform is designed for environments that don't support createImageBitmap API,
 * or for compatibility with older browsers. It uses the traditional HTMLImageElement
 * approach for image loading.
 *
 */
export declare class WebPlatformLegacy extends WebPlatform {
    constructor(settings?: PlatformSettings);
    protected getImageWorkerFactory(): ImageWorkerFactory;
    loadImage(src: string, premultiplyAlpha: boolean | null, sx?: number | null, sy?: number | null, sw?: number | null, sh?: number | null): Promise<ImageResponse>;
    createImage(blob: Blob, premultiplyAlpha: boolean | null, sx: number | null, sy: number | null, sw: number | null, sh: number | null): Promise<ImageResponse>;
    loadCompressedTexture(src: string): Promise<ImageResponse>;
}