/**
 * additional import for TypeScript
 * @import {TextureAtlas} from "./../../texture/atlas.js";
 */
/**
 * Base class for batchers that manage WebGL textures and material properties.
 * Provides texture creation, binding, uploading, and deletion.
 * @category Rendering
 */
export class MaterialBatcher extends Batcher {
    /**
     * the current active texture unit
     * @ignore
     */
    currentTextureUnit: any;
    /**
     * bound textures by unit
     * @ignore
     */
    boundTextures: any[] | undefined;
    /**
     * Create a WebGL texture from an image
     * @param {number} unit - Destination texture unit
     * @param {Image|HTMLCanvasElement|ImageData|Uint8Array[]|Float32Array[]} [pixels=null] - Source image
     * @param {number} filter - gl.LINEAR or gl.NEAREST
     * @param {string} [repeat="no-repeat"] - Image repeat behavior
     * @param {number} [w=pixels.width] - Source image width
     * @param {number} [h=pixels.height] - Source image height
     * @param {boolean} [premultipliedAlpha=true] - Multiplies the alpha channel into the other color channels
     * @param {boolean} [mipmap=true] - Whether mipmap levels should be generated
     * @returns {WebGLTexture} a WebGL texture
     */
    createTexture2D(unit: number, pixels?: (new (width?: number, height?: number) => HTMLImageElement) | HTMLCanvasElement | ImageData | Uint8Array[] | Float32Array[], filter: number, repeat?: string, w?: number, h?: number, premultipliedAlpha?: boolean, mipmap?: boolean, texture: any, flush?: boolean): WebGLTexture;
    /**
     * delete the given WebGL texture
     * @param {WebGLTexture|TextureAtlas} texture - a WebGL texture or TextureAtlas to delete
     */
    deleteTexture2D(texture: WebGLTexture | TextureAtlas): void;
    /**
     * returns the WebGL texture associated to the given texture unit
     * @param {number} unit - Texture unit to which a texture is bound
     * @returns {WebGLTexture} texture a WebGL texture
     */
    getTexture2D(unit: number): WebGLTexture;
    /**
     * assign the given WebGL texture to the current batch
     * @param {WebGLTexture} texture - a WebGL texture
     * @param {number} unit - Texture unit to which the given texture is bound
     */
    bindTexture2D(texture: WebGLTexture, unit: number, flush?: boolean): void;
    /**
     * unbind the given WebGL texture, forcing it to be reuploaded
     * @param {WebGLTexture} [texture] - a WebGL texture
     * @param {number} [unit] - Texture unit to unbind from
     * @returns {number} unit the unit number that was associated with the given texture
     */
    unbindTexture2D(texture?: WebGLTexture, unit?: number): number;
    /**
     * @ignore
     */
    uploadTexture(texture: any, w: any, h: any, force?: boolean, flush?: boolean): any;
}
import { Batcher } from "./batcher.js";
import type { TextureAtlas } from "./../../texture/atlas.js";
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