import type { WebGLContextManager } from "../../../webgl/context-manager";
import type { CandlestickChart } from "../candlestick";
type GL = WebGL2RenderingContext | WebGLRenderingContext;
/**
 * OHLC bar glyph. Owns the OHLC program + per-color persistent segment
 * buffers built per data load. Co-tenanted with `BodyWickGlyph` on
 * `CandlestickChart`; only one of the two is active per frame depending
 * on `_defaultChartType`.
 */
export declare class OHLCGlyph {
    private _program;
    private _buffers;
    private ensureProgram;
    /**
     * Drop persistent OHLC vertex buffers. Called from data-load (before
     * `rebuildBuffers`) and from chart-destroy paths.
     */
    invalidateBuffers(chart: CandlestickChart): void;
    /**
     * Pre-build the per-group OHLC instance buffers. Each candle emits 3
     * line segments (H–L, open tick, close tick); layout per instance is
     * `[start.x, start.y, end.x, end.y]`. Single GPU upload per group per
     * data load.
     */
    rebuildBuffers(chart: CandlestickChart, glManager: WebGLContextManager): void;
    /**
     * Bind the persistent up/down OHLC buffers and dispatch one instanced
     * draw per color group.
     */
    draw(chart: CandlestickChart, gl: GL, glManager: WebGLContextManager, projection: Float32Array): void;
    destroy(chart: CandlestickChart): void;
}
export {};