From d424dc2c45bf6b86423034d48ae7271760d4bb20 Mon Sep 17 00:00:00 2001
From: Caball <Caball009@al.al>
Date: Tue, 31 Dec 2024 00:23:57 +0100
Subject: [PATCH] Added workaround to enforce max fps limit.

Without this workaround my fps occasionally exceeds 1500 or even 2000 fps.
---
 src/client/component/fps.cpp | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/src/client/component/fps.cpp b/src/client/component/fps.cpp
index 3614829..154cf8c 100644
--- a/src/client/component/fps.cpp
+++ b/src/client/component/fps.cpp
@@ -74,6 +74,23 @@ namespace fps
 			++data->index;
 		}
 
+		void enforce_fps_limit()
+		{
+			const auto* maxfps = game::Dvar_FindVar("com_maxfps");
+			const auto max = (maxfps) ? std::min(2 * maxfps->current.integer, maxfps->domain.integer.max + 250) : 1250;
+			const auto fps = static_cast<std::int32_t>(static_cast<float>(1000.0f /
+				static_cast<float>(cg_perf.average)) + 9.313225746154785e-10);
+
+			if (fps > max)
+			{
+				// workaround to limit fps
+				scheduler::once([]()
+				{
+					std::this_thread::sleep_for(std::chrono::milliseconds(5));
+				}, scheduler::pipeline::renderer);
+			}
+		}
+
 		void perf_update()
 		{
 			cg_perf.count = 32;
@@ -84,6 +101,7 @@ namespace fps
 			cg_perf.previous_ms = cg_perf.current_ms;
 
 			perf_calc_fps(&cg_perf, cg_perf.frame_ms);
+			enforce_fps_limit();
 
 			utils::hook::invoke<void>(SELECT_VALUE(0x1405806E0, 0x140658E30));
 		}