import type { TextureLike } from '../../shared';
import type { GlRenderingContext, GlTextureLocation } from '../types';
import type { WebGLRenderer } from '../WebGLRenderer';
import type { GlTextureUploader } from './GlTextureUploader';
import { GlSystem } from '../system';
import { GlTexture } from './GlTexture';
export declare class GlTextureSystem extends GlSystem {
    uploaders: Record<string, GlTextureUploader>;
    readonly textures: Map<number, TextureLike>;
    readonly glTextures: Map<number, GlTexture>;
    protected _mapFormatToInternalFormat: Record<string, number>;
    protected _mapFormatToType: Record<string, number>;
    protected _mapFormatToFormat: Record<string, number>;
    protected _premultiplyAlpha: boolean;
    maxTextureSize: number;
    maxTextureImageUnits: number;
    protected _location: GlTextureLocation;
    current: (TextureLike | null)[];
    install(renderer: WebGLRenderer): void;
    protected _updateContext(gl: GlRenderingContext): void;
    getGlTexture(texture: TextureLike): GlTexture;
    protected _createGlTexture(texture: TextureLike): GlTexture;
    bind(texture?: TextureLike | null, location?: number, clampOverride?: boolean): void;
    protected _activateLocation(location: number): void;
    unbind(source: TextureLike | number): void;
    protected _sourceUnload(source: TextureLike): void;
    updateStyle(texture: TextureLike, firstCreation?: boolean): void;
    updateGpuTexture(texture: TextureLike): void;
    updateMipmap(texture: TextureLike): void;
    reset(): void;
}