import VectorWorker from './vectorWorker.js';
import type ImageStore from './imageStore.js';
import type { TileRequest } from '../worker.spec.js';
import type { FillDefinition, FillWorkerLayer, GPUType } from 'style/style.spec.js';
import type { FillFeature, FillWorker as FillWorkerSpec, IDGen, VTFeature } from './process.spec.js';
/** Worker for processing fill data */
export default class FillWorker extends VectorWorker implements FillWorkerSpec {
    #private;
    featureStore: Map<string, FillFeature[]>;
    invertLayers: Map<number, FillWorkerLayer>;
    imageStore: ImageStore;
    /**
     * @param idGen - id generator to ensure features don't overlap
     * @param gpuType - the GPU context of the map renderer (WebGL(1|2) | WebGPU)
     * @param imageStore - the image store to pull/request the needed pattern images
     */
    constructor(idGen: IDGen, gpuType: GPUType, imageStore: ImageStore);
    /**
     * Setup a fill layer for processing
     * @param fillLayer - the fill layer
     * @returns the worker layer to process future fill data
     */
    setupLayer(fillLayer: FillDefinition): FillWorkerLayer;
    /**
     * Build a fill feature from input vector features
     * @param tile - the tile request
     * @param extent - the tile extent
     * @param feature - the vector tile feature
     * @param fillLayer - the fill worker layer
     * @param mapID - the map id to ship the data back to
     * @param sourceName - the source name the data to belongs to
     * @returns true if the feature was built
     */
    buildFeature(tile: TileRequest, extent: number, feature: VTFeature, fillLayer: FillWorkerLayer, mapID: string, sourceName: string): Promise<boolean>;
    /**
     * Flush the fill feature data to be shipped out
     * @param mapID - id of the map to ship the data back to
     * @param tile - tile request
     * @param sourceName - source name the data to belongs to
     * @param wait - this promise must be resloved before flushing. Ensures pattern data is ready
     */
    flush(mapID: string, tile: TileRequest, sourceName: string, wait: Promise<void>): Promise<void>;
}