Function scaleProtocolTimeoutForComposition

packages/engine/src/config.ts:285–300

(
  baseTimeoutMs: number,
  dims: { width: number; height: number },
)

 * for tests.
 */
export function scaleProtocolTimeoutForComposition(
  baseTimeoutMs: number,
  dims: { width: number; height: number },
): number {
  const { width, height } = dims;
  if (!Number.isFinite(width) || !Number.isFinite(height) || width <= 0 || height <= 0) {
    return baseTimeoutMs;
  }
  const factor = (width * height) / PROTOCOL_TIMEOUT_REFERENCE_PIXELS;
  if (factor <= 1) return baseTimeoutMs;
  const scaled = Math.ceil(baseTimeoutMs * factor);
  // Ceiling is `max(base, MAX)` so an explicit base above the ceiling is never
  // lowered (preserves the "only ever raise" contract for all callers).
  const ceiling = Math.max(baseTimeoutMs, MAX_SCALED_PROTOCOL_TIMEOUT_MS);
  return Math.min(ceiling, Math.max(baseTimeoutMs, scaled));
}

function memoryAdaptiveCacheLimit(): number {
  const total = getSystemTotalMb();