import type { GLCat } from './GLCat';
import type { GLCatRenderbuffer } from './GLCatRenderbuffer';
import type { GLCatTexture } from './GLCatTexture';
declare type WebGL1 = WebGLRenderingContext;
declare type WebGL2 = WebGL2RenderingContext;
/**
 * It's a WebGLFramebuffer.
 */
export declare class GLCatFramebuffer<TContext extends WebGL1 | WebGL2 = WebGL1 | WebGL2> {
    private __glCat;
    private __framebuffer;
    private __renderbufferMap;
    private __textureMap;
    /**
     * Its own framebuffer.
     */
    get framebuffer(): WebGLFramebuffer;
    /**
     * Its own framebuffer. Shorter than [[GLCatFramebuffer.framebuffer]]
     */
    get raw(): WebGLFramebuffer;
    /**
     * Its attached renderbuffer.
     * If you want to grab other than `DEPTH_ATTACHMENT`, try [[GLCatFramebuffer.getRenderbuffer]] instead.
     */
    get renderbuffer(): GLCatRenderbuffer<TContext> | null;
    /**
     * Its attached texture.
     * If you want to grab other than `COLOR_ATTACHMENT0`, try [[GLCatFramebuffer.getTexture]] instead.
     */
    get texture(): GLCatTexture<TContext> | null;
    /**
     * Create a new GLCatFramebuffer instance.
     */
    constructor(glCat: GLCat<TContext>, framebuffer: WebGLFramebuffer);
    /**
     * Dispose the framebuffer.
     */
    dispose(alsoAttached?: boolean): void;
    /**
     * Retrieve its attached renderbuffer.
     */
    getRenderbuffer(attachment?: number): GLCatRenderbuffer<TContext> | null;
    /**
     * Retrieve its attached texture.
     */
    getTexture(attachment?: number): GLCatTexture<TContext> | null;
    /**
     * Attach a renderbuffer to this framebuffer.
     */
    attachRenderbuffer(renderbuffer: GLCatRenderbuffer<TContext>, { attachment }?: {
        attachment?: number | undefined;
    }): void;
    /**
     * Attach a texture to this framebuffer.
     */
    attachTexture(texture: GLCatTexture<TContext>, { level, textarget, attachment, }?: {
        level?: number | undefined;
        textarget?: number | undefined;
        attachment?: number | undefined;
    }): void;
}
export {};