import type { LineData } 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, LineDefinition, LineStyle, LineWorkflowLayerGuideGPU } from 'style/style.spec.js';
import type { LineFeature as LineFeatureSpec, LineSource, LineWorkflow as LineWorkflowSpec } from './workflow.spec.js';
/** Line Feature is a standalone line render storage unit that can be drawn to the GPU */
export declare class LineFeature implements LineFeatureSpec {
    #private;
    workflow: LineWorkflowSpec;
    layerGuide: LineWorkflowLayerGuideGPU;
    source: LineSource;
    tile: Tile;
    count: number;
    offset: number;
    featureCode: number[];
    dashTexture: GPUTexture;
    featureCodeBuffer: GPUBuffer;
    lineUniformBuffer: GPUBuffer;
    cap: number;
    parent?: Tile | undefined;
    type: "line";
    bindGroup: GPUBindGroup;
    lineBindGroup: GPUBindGroup;
    /**
     * @param workflow - the line workflow
     * @param layerGuide - the layer guide for this feature
     * @param source - the line source
     * @param tile - the tile this feature is drawn on
     * @param count - the number of points
     * @param offset - the offset of the points
     * @param featureCode - the encoded feature code that tells the GPU how to compute it's properties
     * @param dashTexture - the dash texture
     * @param featureCodeBuffer - the encoded feature code that tells the GPU how to compute it's properties
     * @param lineUniformBuffer - the line uniform buffer
     * @param cap - the line cap
     * @param parent - the parent tile if applicable
     */
    constructor(workflow: LineWorkflowSpec, layerGuide: LineWorkflowLayerGuideGPU, source: LineSource, tile: Tile, count: number, offset: number, featureCode: number[], dashTexture: GPUTexture, featureCodeBuffer: GPUBuffer, lineUniformBuffer: GPUBuffer, cap: number, parent?: Tile | undefined);
    /** Draw the feature to the GPU */
    draw(): void;
    /** Destroy the feature */
    destroy(): void;
    /**
     * Duplicate the line 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): LineFeature;
}
/** Line Workflow */
export default class LineWorkflow implements LineWorkflowSpec {
    #private;
    context: WebGPUContext;
    layerGuides: Map<number, LineWorkflowLayerGuideGPU>;
    pipeline: GPURenderPipeline;
    lineBindGroupLayout: 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: LineStyle): LineDefinition;
    /**
     * Build the source line data into line features
     * @param lineData - the input line data
     * @param tile - the tile we are building the features for
     */
    buildSource(lineData: LineData, tile: Tile): void;
    /**
     * Draw a line feature to the GPU
     * @param feature - line feature guide
     */
    draw(feature: LineFeatureSpec): void;
}