get_interval_frames()

void fl::FrameTracker::get_interval_frames	(	uint32_t	now,
		uint32_t *	frameNumber,
		uint32_t *	nextFrameNumber,
		uint8_t *	amountOfNextFrame = nullptr ) const

Definition at line 22 of file frame_tracker.cpp.

                                                                         {
    // Account for any pause time
    uint32_t effectiveTime = now;
 
    // Convert milliseconds to microseconds for precise calculation
    uint64_t microseconds = static_cast<uint64_t>(effectiveTime) * 1000ULL;
 
    // Calculate frame number with proper rounding
    *frameNumber = microseconds / mMicrosSecondsPerInterval;
    *nextFrameNumber = *frameNumber + 1;
 
    // Calculate interpolation amount if requested
    if (amountOfNextFrame != nullptr) {
        uint64_t frame1_start = (*frameNumber * mMicrosSecondsPerInterval);
        uint64_t frame2_start = (*nextFrameNumber * mMicrosSecondsPerInterval);
        uint32_t rel_time = microseconds - frame1_start;
        uint32_t frame_duration = frame2_start - frame1_start;
        uint8_t progress = uint8_t(map(rel_time, 0, frame_duration, 0, 255));
        *amountOfNextFrame = progress;
    }
}

References mMicrosSecondsPerInterval.