import { type PcxImage } from './pcx.js';
import { type WalTexture } from './wal.js';
import { TgaImage } from './tga.js';
export interface PreparedTexture {
    readonly width: number;
    readonly height: number;
    readonly levels: readonly TextureLevel[];
    readonly source: 'pcx' | 'wal' | 'tga';
}
export interface TextureLevel {
    readonly level: number;
    readonly width: number;
    readonly height: number;
    readonly rgba: Uint8Array;
}
export interface TextureCacheOptions {
    readonly capacity?: number;
    readonly maxMemory?: number;
}
export declare class TextureCache {
    private readonly cache;
    constructor(options?: TextureCacheOptions);
    get size(): number;
    get memoryUsage(): number;
    get(key: string): PreparedTexture | undefined;
    set(key: string, texture: PreparedTexture): void;
    clear(): void;
    get capacity(): number;
    set capacity(value: number);
    get maxMemory(): number;
    set maxMemory(value: number);
}
export declare function walToRgba(wal: WalTexture, palette: Uint8Array): PreparedTexture;
export declare function preparePcxTexture(pcx: PcxImage): PreparedTexture;
export declare function prepareTgaTexture(tga: TgaImage): PreparedTexture;
export declare function parseWalTexture(buffer: ArrayBuffer, palette: Uint8Array): PreparedTexture;
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