Function calculateExactFPS

src/ChartGPU.ts:974–993

()

  };

  const calculateExactFPS = (): ExactFPS => {
    if (frameTimestampCount < 2) {
      return 0 as ExactFPS;
    }

    const startIndex = (frameTimestampIndex - frameTimestampCount + FRAME_BUFFER_SIZE) % FRAME_BUFFER_SIZE;
    
    let totalDelta = 0;
    for (let i = 1; i < frameTimestampCount; i++) {
      const prevIndex = (startIndex + i - 1) % FRAME_BUFFER_SIZE;
      const currIndex = (startIndex + i) % FRAME_BUFFER_SIZE;
      const delta = frameTimestamps[currIndex] - frameTimestamps[prevIndex];
      totalDelta += delta;
    }

    const avgFrameTime = totalDelta / (frameTimestampCount - 1);
    const fps = avgFrameTime > 0 ? 1000 / avgFrameTime : 0;
    
    return fps as ExactFPS;
  };

  const calculateFrameTimeStats = (): FrameTimeStats => {
    if (frameTimestampCount < 2) {