import type { RasterData } from 'workers/worker.spec.js';
import type { TileGPU as Tile } from 'source/tile.spec.js';
import type { WebGPUContext } from '../context/index.js';
import type { LayerDefinitionBase, RasterDefinition, RasterStyle, RasterWorkflowLayerGuideGPU } from 'style/style.spec.js';
import type { RasterFeature as RasterFeatureSpec, RasterSource, RasterWorkflow as RasterWorkflowSpec } from './workflow.spec.js';
/** Raster Feature is a standalone raster render storage unit that can be drawn to the GPU */
export declare class RasterFeature implements RasterFeatureSpec {
    #private;
    layerGuide: RasterWorkflowLayerGuideGPU;
    workflow: RasterWorkflowSpec;
    tile: Tile;
    source: RasterSource;
    featureCode: number[];
    rasterFadeBuffer: GPUBuffer;
    featureCodeBuffer: GPUBuffer;
    fadeStartTime: number;
    parent?: Tile | undefined;
    type: "raster";
    bindGroup: GPUBindGroup;
    rasterBindGroup: GPUBindGroup;
    /**
     * @param layerGuide - the layer guide for this feature
     * @param workflow - the raster workflow
     * @param tile - the tile this feature is drawn on
     * @param source - the raster source
     * @param featureCode - the encoded feature code that tells the GPU how to compute it's properties
     * @param rasterFadeBuffer - the fade buffer
     * @param featureCodeBuffer - the feature code buffer
     * @param fadeStartTime - the start time of the fade for smooth transitions
     * @param parent - the parent tile if applicable
     */
    constructor(layerGuide: RasterWorkflowLayerGuideGPU, workflow: RasterWorkflowSpec, tile: Tile, source: RasterSource, featureCode: number[], rasterFadeBuffer: GPUBuffer, featureCodeBuffer: GPUBuffer, fadeStartTime?: number, parent?: Tile | undefined);
    /** Draw the feature to the GPU */
    draw(): void;
    /** Destroy and cleanup the feature */
    destroy(): void;
    /**
     * Duplicate the raster feature
     * @param tile - the tile this feature is drawn on
     * @param parent - the parent tile if applicable
     * @returns the duplicated feature
     */
    duplicate(tile: Tile, parent?: Tile): RasterFeature;
}
/** Raster Workflow */
export default class RasterWorkflow implements RasterWorkflowSpec {
    #private;
    context: WebGPUContext;
    layerGuides: Map<number, RasterWorkflowLayerGuideGPU>;
    pipeline: GPURenderPipeline;
    rasterBindGroupLayout: GPUBindGroupLayout;
    /** @param context - The WebGPU context */
    constructor(context: WebGPUContext);
    /** Setup the workflow */
    setup(): Promise<void>;
    /** Destroy and cleanup the workflow */
    destroy(): void;
    /**
     * Build the layer definition for this workflow
     * @param layerBase - the common layer attributes
     * @param layer - the user defined layer attributes
     * @returns a built layer definition that's ready to describe how to render a feature
     */
    buildLayerDefinition(layerBase: LayerDefinitionBase, layer: RasterStyle): RasterDefinition;
    /**
     * Build the source raster data into raster features
     * @param rasterData - the input raster data
     * @param tile - the tile we are building the features for
     */
    buildSource(rasterData: RasterData, tile: Tile): void;
    /**
     * Draw a raster feature to the GPU
     * @param feature - raster feature guide
     */
    draw(feature: RasterFeatureSpec): void;
}