From 09b6a143948eeb6f994285a2d65c044464280460 Mon Sep 17 00:00:00 2001
From: lizzie <lizzie@eden-emu.dev>
Date: Sat, 8 Nov 2025 07:28:30 +0000
Subject: [PATCH] [input_common/mouse, sdl_driver] increase latency of mouse
 and SDL_vibration threads to 4 "evals" per sec

---
 src/input_common/drivers/mouse.cpp      | 22 +++++++++-------------
 src/input_common/drivers/mouse.h        |  2 --
 src/input_common/drivers/sdl_driver.cpp |  2 +-
 3 files changed, 10 insertions(+), 16 deletions(-)

diff --git a/src/input_common/drivers/mouse.cpp b/src/input_common/drivers/mouse.cpp
index 0949e1e2ad..424e716850 100644
--- a/src/input_common/drivers/mouse.cpp
+++ b/src/input_common/drivers/mouse.cpp
@@ -14,7 +14,7 @@
 #include "input_common/drivers/mouse.h"
 
 namespace InputCommon {
-constexpr int update_time = 10;
+constexpr int update_time = 250; // 4 TPS
 constexpr float default_panning_sensitivity = 0.0010f;
 constexpr float default_stick_sensitivity = 0.0006f;
 constexpr float default_deadzone_counterweight = 0.01f;
@@ -73,18 +73,14 @@ Mouse::Mouse(std::string input_engine_) : InputEngine(std::move(input_engine_))
     last_mouse_change = {};
     last_motion_change = {};
 
-    update_thread = std::jthread([this](std::stop_token stop_token) { UpdateThread(stop_token); });
-}
-
-void Mouse::UpdateThread(std::stop_token stop_token) {
-    Common::SetCurrentThreadName("Mouse");
-
-    while (!stop_token.stop_requested()) {
-        UpdateStickInput();
-        UpdateMotionInput();
-
-        std::this_thread::sleep_for(std::chrono::milliseconds(update_time));
-    }
+    update_thread = std::jthread([this](std::stop_token stop_token) {
+        Common::SetCurrentThreadName("Mouse");
+        while (!stop_token.stop_requested()) {
+            UpdateStickInput();
+            UpdateMotionInput();
+            std::this_thread::sleep_for(std::chrono::milliseconds(update_time));
+        }
+    });
 }
 
 void Mouse::UpdateStickInput() {
diff --git a/src/input_common/drivers/mouse.h b/src/input_common/drivers/mouse.h
index 124b6f3bd5..ab6d1dcb38 100644
--- a/src/input_common/drivers/mouse.h
+++ b/src/input_common/drivers/mouse.h
@@ -95,10 +95,8 @@ public:
     Common::Input::ButtonNames GetUIName(const Common::ParamPackage& params) const override;
 
 private:
-    void UpdateThread(std::stop_token stop_token);
     void UpdateStickInput();
     void UpdateMotionInput();
-
     bool IsMousePanningEnabled();
 
     Common::Input::ButtonNames GetUIButtonName(const Common::ParamPackage& params) const;
diff --git a/src/input_common/drivers/sdl_driver.cpp b/src/input_common/drivers/sdl_driver.cpp
index 972abec9fe..b527668052 100644
--- a/src/input_common/drivers/sdl_driver.cpp
+++ b/src/input_common/drivers/sdl_driver.cpp
@@ -548,7 +548,7 @@ SDLDriver::SDLDriver(std::string input_engine_) : InputEngine(std::move(input_en
             using namespace std::chrono_literals;
             while (initialized) {
                 SendVibrations();
-                std::this_thread::sleep_for(10ms);
+                std::this_thread::sleep_for(250ms); // 4 TPS
             }
         });
     }