mirror of https://github.com/ShareX/ShareX.git
102 lines
2.9 KiB
C#
102 lines
2.9 KiB
C#
#region License Information (GPL v3)
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/*
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ShareX - A program that allows you to take screenshots and share any file type
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Copyright (c) 2007-2024 ShareX Team
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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Optionally you can also view the license at <http://www.gnu.org/licenses/>.
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*/
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#endregion License Information (GPL v3)
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using System;
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using System.Diagnostics;
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using System.Threading;
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namespace ShareX.HelpersLib
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{
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public class FPSManager
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{
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public event Action FPSUpdated;
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public int FPS { get; private set; }
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public int FPSLimit { get; set; }
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private int frameCount;
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private Stopwatch fpsTimer, frameTimer;
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public FPSManager()
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{
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fpsTimer = new Stopwatch();
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frameTimer = new Stopwatch();
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}
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public FPSManager(int fpsLimit) : this()
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{
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FPSLimit = fpsLimit;
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}
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protected void OnFPSUpdated()
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{
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FPSUpdated?.Invoke();
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}
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public void Update()
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{
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frameCount++;
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if (!fpsTimer.IsRunning)
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{
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fpsTimer.Start();
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}
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else if (fpsTimer.ElapsedMilliseconds >= 1000)
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{
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FPS = (int)Math.Round(frameCount / fpsTimer.Elapsed.TotalSeconds);
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OnFPSUpdated();
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frameCount = 0;
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fpsTimer.Restart();
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}
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if (FPSLimit > 0)
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{
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if (!frameTimer.IsRunning)
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{
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frameTimer.Start();
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}
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else
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{
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double currentFrameDuration = frameTimer.Elapsed.TotalMilliseconds;
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double targetFrameDuration = 1000d / FPSLimit;
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if (currentFrameDuration < targetFrameDuration)
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{
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int sleepDuration = (int)Math.Round(targetFrameDuration - currentFrameDuration);
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if (sleepDuration > 0)
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{
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Thread.Sleep(sleepDuration);
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}
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}
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frameTimer.Restart();
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}
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}
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}
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}
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} |