import { GlyphGeometryInfo, LoadedFont, GlyphCluster, GlyphData } from '../types';
import { CurveFidelityConfig, GeometryOptimizationOptions } from '../types';
import { Cache } from '../../utils/Cache';
export interface InstancedTextGeometry {
    vertices: Float32Array;
    normals: Float32Array;
    indices: Uint32Array;
    glyphInfos: GlyphGeometryInfo[];
    planeBounds: {
        min: {
            x: number;
            y: number;
            z: number;
        };
        max: {
            x: number;
            y: number;
            z: number;
        };
    };
}
export declare class GlyphGeometryBuilder {
    private cache;
    private tessellator;
    private extruder;
    private fontId;
    private cacheKeyPrefix;
    private curveFidelityConfig?;
    private curveSteps?;
    private geometryOptimizationOptions?;
    private clusterer;
    private collector;
    private drawCallbacks;
    private loadedFont;
    private wordCache;
    private contourCache;
    private clusteringCache;
    private emptyGlyphs;
    private clusterPositions;
    private clusterContoursScratch;
    private taskScratch;
    constructor(cache: Cache<string, GlyphData>, loadedFont: LoadedFont);
    getOptimizationStats(): import("../geometry/PathOptimizer").OptimizationStats;
    setCurveFidelityConfig(config?: CurveFidelityConfig): void;
    setCurveSteps(curveSteps?: number): void;
    setGeometryOptimization(options?: GeometryOptimizationOptions): void;
    setFontId(fontId: string): void;
    private updateCacheKeyPrefix;
    private getGeometryConfigSignature;
    buildInstancedGeometry(clustersByLine: GlyphCluster[][], depth: number, removeOverlaps: boolean, isCFF: boolean, scale: number, separateGlyphs?: boolean, coloredTextIndices?: Set<number>): InstancedTextGeometry;
    private getClusterKey;
    private createGlyphInfo;
    private getContoursForGlyph;
    private tessellateGlyphCluster;
    private extrudeAndPackage;
    private tessellateGlyph;
    private updatePlaneBounds;
    getCacheStats(): import("../../utils/Cache").CacheStats;
    clearCache(): void;
}