Created
January 8, 2026 06:26
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| import time | |
| class FrameRateController: | |
| def __init__(self, target_fps: float, smooth_alpha: float = 0.05): | |
| self.target_fps = target_fps | |
| self.target_frame_duration = 1.0 / target_fps | |
| self.last_frame_time = time.perf_counter() | |
| self.sleep_time = 0.0 | |
| self.smooth_alpha = smooth_alpha | |
| self.smooth_frame_time = -1.0 | |
| def _update_fps_metrics(self, frame_time): | |
| if self.smooth_frame_time < 0: | |
| self.smooth_frame_time = self.target_frame_duration | |
| else: | |
| self.smooth_frame_time = self.smooth_alpha * frame_time + (1 - self.smooth_alpha) * self.smooth_frame_time | |
| def get_fps(self) -> float: | |
| return 1.0 / self.smooth_frame_time if self.smooth_frame_time > 0 else 0.0 | |
| def update(self) -> float: | |
| now = time.perf_counter() | |
| frame_time = now - self.last_frame_time | |
| self.last_frame_time = now | |
| self._update_fps_metrics(frame_time) | |
| proc_time = frame_time - self.sleep_time | |
| self.sleep_time = max(0.0, self.target_frame_duration - proc_time) | |
| return self.sleep_time |
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| import time | |
| class FrameRateCounter: | |
| def __init__(self, smooth_alpha: float = 0.05): | |
| self.last_frame_time = time.perf_counter() | |
| self.smooth_alpha = smooth_alpha | |
| self.smooth_frame_time = -1.0 | |
| def reset(self): | |
| self.last_frame_time = time.perf_counter() | |
| self.smooth_frame_time = -1.0 | |
| def get_fps(self) -> float: | |
| return 1.0 / self.smooth_frame_time if self.smooth_frame_time > 0 else 0.0 | |
| def update(self): | |
| now = time.perf_counter() | |
| frame_time = now - self.last_frame_time | |
| self.last_frame_time = now | |
| if self.smooth_frame_time < 0: | |
| self.smooth_frame_time = frame_time | |
| else: | |
| self.smooth_frame_time = self.smooth_alpha * frame_time + (1 - self.smooth_alpha) * self.smooth_frame_time |
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