import KTXParser from "./KTXParser";
/**
 * This class is used to load compressed textures, and is Codec-specific (DXT, PVR, ETC)
 */
export declare class TextureCodec {
    /**
     * Parser used to parse the compressed texture
     */
    parser: KTXParser;
    /**
     * Suffix of the compressed texture (ex: .dxt.ktx)
     */
    suffix: string;
    /**
     * Is the texture compressed
     */
    compressed: boolean;
    /**
     * Browser extension needed to load the texture (ex: WEBGL_compressed_texture_s3tc for DXT texture, or mozilla/webkit equivalent)
     */
    ext: GLenum;
    constructor(parser: KTXParser, compressed: boolean, suffix: string, extension: number);
    /**
     * Transform the path of the texture to load to add the suffix
     * @param basePath Path of the texture to load
     */
    transformPath: (basePath: string) => string;
    /**
     * Check if the browser supports the extension needed to load the texture
     */
    isSupported(): boolean;
}
/**
 * Class used to load compressed KTX textures (DXT, PVR, ETC)
 */
export default class TextureLoader {
    /**
     * Codec for DXT textures
     */
    DXTCodec: TextureCodec;
    /**
     * Codec for PVR textures
     */
    PVRCodec: TextureCodec;
    /**
     * Codec for ETC textures
     */
    ETCCodec: TextureCodec;
    constructor();
    /**
     * Check if the browser supports any of the compressed texture formats
     */
    hasCodec(): boolean;
    /**
     * Get the codec that is supported by the browser
     * Test order is DXT, then PVR, finally ETC
     */
    getCodec(): TextureCodec;
}