/** The bundle-file shape these audits need — kept structural so bundle.ts stays the only owner of BundleFile. */
type AuditableFile = {
    path: string;
    absolutePath: string;
};
export type TextureAudit = {
    warnings: string[];
};
export type Ktx2Header = {
    pixelWidth: number;
    pixelHeight: number;
    levelCount: number;
};
/** Parse a KTX2 header from the leading bytes of a file or buffer view. null when it is not a KTX2. */
export declare function parseKtx2Header(bytes: Buffer): Ktx2Header | null;
/** levelCount 0 asks the loader to generate mips — which a GPU-compressed payload cannot do, so it counts too. */
export declare function isMipless(header: Ktx2Header): boolean;
/**
 * Audit every KTX2 in the bundle — loose files and images embedded in a GLB — plus the samplers those
 * GLBs bind. Unreadable or malformed files are skipped: this reports texture quality, not file health.
 */
export declare function auditBundleTextures(files: AuditableFile[]): TextureAudit;
export {};