/**
 * Renderer mode. `"worker"` runs the chart code in a Web Worker (off
 * the main thread, gets parallelism but pays a postMessage hop on
 * every interaction). `"inprocess"` dynamic-imports the same worker
 * module on the main thread so the bundle stays single-copy without
 * the worker boundary. The two paths share a `MessageChannel`-shaped
 * control protocol — only the handle around it differs.
 */
export declare const RUNTIME_MODE: "worker" | "inprocess";
/**
 * Build-time toggle between the two GL-canvas display strategies.
 *
 * - `"direct"` — host transfers `.webgl-canvas` to the renderer via
 *   `transferControlToOffscreen`. The renderer's GL context renders
 *   straight into the visible drawing buffer.
 *
 * - `"blit"` — host keeps the visible canvas main-thread with a 2D
 *   context. The renderer creates its own internal `OffscreenCanvas`
 *   for GL rendering and emits each completed frame as an
 *   `ImageBitmap` over the control channel; the host blits the bitmap
 *   into the visible canvas via `drawImage`.
 */
export declare const RENDER_BLIT_MODE: "direct" | "blit";
/**
 * Strict-mode validation for `BufferPool.upload`.
 */
export declare const BUFFER_POOL_STRICT: boolean;