export type KtxInfoKeyValue = [string, string];
export type KtxInfoCubemapData = [
    Uint8Array,
    Uint8Array,
    Uint8Array,
    Uint8Array,
    Uint8Array,
    Uint8Array,
    Uint8Array,
    Uint8Array
] | [
    Float32Array,
    Float32Array,
    Float32Array,
    Float32Array,
    Float32Array,
    Float32Array,
    Float32Array,
    Float32Array
];
export interface KtxInfoTextureMipMap {
    imageSize: number;
    width: number;
    height: number;
    depth: number;
    cubemap?: KtxInfoCubemapData;
    texture?: Uint8Array;
}
export interface KtxInfo {
    identifier: string;
    littleEndian: boolean;
    glType: number;
    glTypeSize: number;
    glFormat: number;
    glInternalFormat: number;
    glBaseInternalFormat: number;
    pixelWidth: number;
    pixelHeight: number;
    pixelDepth: number;
    numberOfArrayElements: number;
    numberOfFaces: number;
    numberOfMipmapLevels: number;
    keyValueData: KtxInfoKeyValue[];
    mipmaps: KtxInfoTextureMipMap[];
}
export declare const readKtx: (raw: ArrayBuffer) => KtxInfo;
export declare class KtxReader {
    private _decoder;
    readKtx(raw: ArrayBuffer): KtxInfo;
    static createKtx(images: {
        width: number;
        height: number;
        channels: number;
        isHdr: boolean;
        data: ArrayBuffer;
    }[]): KtxInfo;
    private toString;
    private toKeyAndValue;
}
export declare const parseSH: (ktx: KtxInfo) => number[];