/**
 * Instanced line which has a  better performance.
 * @see https://www.yuque.com/antv/ou292n/gg1gh5
 */
import { DisplayObject } from '@antv/g-lite';
import { Instanced } from './Instanced';
import { RenderHelper } from '../render';
import { TexturePool } from '../TexturePool';
import { LightPool } from '../LightPool';
import { BatchContext } from '../renderer';
/**
 * Used for Curve only contains 2 commands, e.g. [[M], [C | Q | A]]
 */
export declare class InstancedPathDrawcall extends Instanced {
    protected renderHelper: RenderHelper;
    protected texturePool: TexturePool;
    protected lightPool: LightPool;
    static calcSubpathNum(object: DisplayObject): number;
    constructor(renderHelper: RenderHelper, texturePool: TexturePool, lightPool: LightPool, object: DisplayObject, drawcallCtors: (new (..._: any) => Instanced)[], index: number, context: BatchContext);
    private segmentNum;
    private calcSegmentNum;
    private calcSubpathIndex;
    /**
     * Paths with the same number of vertices should be merged.
     */
    shouldMerge(object: DisplayObject, index: number): boolean;
    createMaterial(objects: DisplayObject[]): void;
    createGeometry(objects: DisplayObject[]): void;
    updateAttribute(objects: DisplayObject[], startIndex: number, name: string, value: any): void;
}
export declare enum JOINT_TYPE {
    NONE = 0,
    FILL = 1,
    JOINT_BEVEL = 4,
    JOINT_MITER = 8,
    JOINT_ROUND = 12,
    JOINT_CAP_BUTT = 16,
    JOINT_CAP_SQUARE = 18,
    JOINT_CAP_ROUND = 20,
    FILL_EXPAND = 24,
    CAP_BUTT = 32,
    CAP_SQUARE = 64,
    CAP_ROUND = 96,
    CAP_BUTT2 = 128
}
export declare function updateBuffer(object: DisplayObject, needEarcut?: boolean, segmentNum?: number, subPathIndex?: number): {
    pointsBuffer: number[];
    travelBuffer: number[];
    triangles: number[];
    instancedCount: number;
};
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