From 7dd4152d6711db76fbe2a2acffcc208a524bb25d Mon Sep 17 00:00:00 2001
From: Nadia Holmquist Pedersen <nadia@nhp.sh>
Date: Fri, 26 Jan 2024 13:06:32 +0100
Subject: Add MaxFPS setting

---
 src/frontend/qt_sdl/Config.cpp                  |   2 +
 src/frontend/qt_sdl/Config.h                    |   1 +
 src/frontend/qt_sdl/EmuThread.cpp               |   2 +-
 src/frontend/qt_sdl/InterfaceSettingsDialog.cpp |   2 +
 src/frontend/qt_sdl/InterfaceSettingsDialog.ui  | 120 +++++++++++++++++-------
 5 files changed, 92 insertions(+), 35 deletions(-)

diff --git a/src/frontend/qt_sdl/Config.cpp b/src/frontend/qt_sdl/Config.cpp
index b6fca7d..02f43de 100644
--- a/src/frontend/qt_sdl/Config.cpp
+++ b/src/frontend/qt_sdl/Config.cpp
@@ -61,6 +61,7 @@ int GL_ScaleFactor;
 bool GL_BetterPolygons;
 
 bool LimitFPS;
+int MaxFPS;
 bool AudioSync;
 bool ShowOSD;
 
@@ -251,6 +252,7 @@ ConfigEntry ConfigFile[] =
     {"GL_BetterPolygons", 1, &GL_BetterPolygons, false, false},
 
     {"LimitFPS", 1, &LimitFPS, true, false},
+    {"MaxFPS", 0, &MaxFPS, 1000, false},
     {"AudioSync", 1, &AudioSync, false},
     {"ShowOSD", 1, &ShowOSD, true, false},
 
diff --git a/src/frontend/qt_sdl/Config.h b/src/frontend/qt_sdl/Config.h
index 5e3db82..11644dc 100644
--- a/src/frontend/qt_sdl/Config.h
+++ b/src/frontend/qt_sdl/Config.h
@@ -105,6 +105,7 @@ extern int GL_ScaleFactor;
 extern bool GL_BetterPolygons;
 
 extern bool LimitFPS;
+extern int MaxFPS;
 extern bool AudioSync;
 extern bool ShowOSD;
 
diff --git a/src/frontend/qt_sdl/EmuThread.cpp b/src/frontend/qt_sdl/EmuThread.cpp
index 01431a1..0728a08 100644
--- a/src/frontend/qt_sdl/EmuThread.cpp
+++ b/src/frontend/qt_sdl/EmuThread.cpp
@@ -576,7 +576,7 @@ void EmuThread::run()
             {
                 bool limitfps = Config::LimitFPS && !fastforward;
 
-                double practicalFramelimit = limitfps ? frametimeStep : 1.0 / 1000.0;
+                double practicalFramelimit = limitfps ? frametimeStep : 1.0 / Config::MaxFPS;
 
                 double curtime = SDL_GetPerformanceCounter() * perfCountsSec;
 
diff --git a/src/frontend/qt_sdl/InterfaceSettingsDialog.cpp b/src/frontend/qt_sdl/InterfaceSettingsDialog.cpp
index 2f7417f..75497bc 100644
--- a/src/frontend/qt_sdl/InterfaceSettingsDialog.cpp
+++ b/src/frontend/qt_sdl/InterfaceSettingsDialog.cpp
@@ -34,6 +34,7 @@ InterfaceSettingsDialog::InterfaceSettingsDialog(QWidget* parent) : QDialog(pare
     ui->spinMouseHideSeconds->setEnabled(Config::MouseHide != 0);
     ui->spinMouseHideSeconds->setValue(Config::MouseHideSeconds);
     ui->cbPauseLostFocus->setChecked(Config::PauseLostFocus != 0);
+    ui->spinMaxFPS->setValue(Config::MaxFPS);
 }
 
 InterfaceSettingsDialog::~InterfaceSettingsDialog()
@@ -60,6 +61,7 @@ void InterfaceSettingsDialog::done(int r)
         Config::MouseHide = ui->cbMouseHide->isChecked() ? 1:0;
         Config::MouseHideSeconds = ui->spinMouseHideSeconds->value();
         Config::PauseLostFocus = ui->cbPauseLostFocus->isChecked() ? 1:0;
+        Config::MaxFPS = ui->spinMaxFPS->value();
 
         Config::Save();
 
diff --git a/src/frontend/qt_sdl/InterfaceSettingsDialog.ui b/src/frontend/qt_sdl/InterfaceSettingsDialog.ui
index 8ee9fed..01ba4a4 100644
--- a/src/frontend/qt_sdl/InterfaceSettingsDialog.ui
+++ b/src/frontend/qt_sdl/InterfaceSettingsDialog.ui
@@ -6,8 +6,8 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>262</width>
-    <height>113</height>
+    <width>337</width>
+    <height>233</height>
    </rect>
   </property>
   <property name="sizePolicy">
@@ -19,32 +19,96 @@
   <property name="windowTitle">
    <string>Interface settings - melonDS</string>
   </property>
-  <layout class="QGridLayout" name="gridLayout">
-   <item row="1" column="0" alignment="Qt::AlignLeft">
-    <widget class="QLabel" name="label">
-     <property name="text">
-      <string>Hide after</string>
+  <layout class="QVBoxLayout" name="verticalLayout" stretch="0,0,0">
+   <item alignment="Qt::AlignTop">
+    <widget class="QGroupBox" name="groupBox">
+     <property name="title">
+      <string>Main window</string>
      </property>
+     <layout class="QVBoxLayout" name="verticalLayout_2">
+      <item>
+       <widget class="QCheckBox" name="cbMouseHide">
+        <property name="text">
+         <string>Hide mouse after inactivity</string>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <layout class="QHBoxLayout" name="horizontalLayout" stretch="0,0,1">
+        <property name="leftMargin">
+         <number>18</number>
+        </property>
+        <item>
+         <widget class="QLabel" name="label">
+          <property name="text">
+           <string>After</string>
+          </property>
+          <property name="buddy">
+           <cstring>spinMouseHideSeconds</cstring>
+          </property>
+         </widget>
+        </item>
+        <item>
+         <widget class="QSpinBox" name="spinMouseHideSeconds"/>
+        </item>
+        <item>
+         <widget class="QLabel" name="label_2">
+          <property name="text">
+           <string>seconds</string>
+          </property>
+          <property name="buddy">
+           <cstring>spinMouseHideSeconds</cstring>
+          </property>
+         </widget>
+        </item>
+       </layout>
+      </item>
+      <item>
+       <widget class="QCheckBox" name="cbPauseLostFocus">
+        <property name="text">
+         <string>Pause emulation when window is not in focus</string>
+        </property>
+       </widget>
+      </item>
+     </layout>
     </widget>
    </item>
-   <item row="2" column="0" colspan="4">
-    <widget class="QCheckBox" name="cbPauseLostFocus">
-     <property name="text">
-      <string>Pause emulation when window is not in focus</string>
+   <item>
+    <widget class="QGroupBox" name="groupBox_2">
+     <property name="title">
+      <string>Framerate </string>
      </property>
+     <layout class="QHBoxLayout" name="horizontalLayout_4" stretch="0,0">
+      <item>
+       <widget class="QLabel" name="label_3">
+        <property name="text">
+         <string>Fast-forward limit</string>
+        </property>
+        <property name="buddy">
+         <cstring>spinMaxFPS</cstring>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <widget class="QSpinBox" name="spinMaxFPS">
+        <property name="suffix">
+         <string> FPS</string>
+        </property>
+        <property name="minimum">
+         <number>60</number>
+        </property>
+        <property name="maximum">
+         <number>1000</number>
+        </property>
+        <property name="value">
+         <number>1000</number>
+        </property>
+       </widget>
+      </item>
+     </layout>
     </widget>
    </item>
-   <item row="0" column="0" colspan="5">
-    <widget class="QCheckBox" name="cbMouseHide">
-     <property name="text">
-      <string>Hide mouse after inactivity</string>
-     </property>
-    </widget>
-   </item>
-   <item row="1" column="1" alignment="Qt::AlignLeft">
-    <widget class="QSpinBox" name="spinMouseHideSeconds"/>
-   </item>
-   <item row="3" column="0" colspan="5">
+   <item>
     <widget class="QDialogButtonBox" name="buttonBox">
      <property name="orientation">
       <enum>Qt::Horizontal</enum>
@@ -54,20 +118,8 @@
      </property>
     </widget>
    </item>
-   <item row="1" column="2">
-    <widget class="QLabel" name="label_2">
-     <property name="text">
-      <string>seconds of inactivity</string>
-     </property>
-    </widget>
-   </item>
   </layout>
  </widget>
- <tabstops>
-  <tabstop>cbMouseHide</tabstop>
-  <tabstop>spinMouseHideSeconds</tabstop>
-  <tabstop>cbPauseLostFocus</tabstop>
- </tabstops>
  <resources/>
  <connections>
   <connection>
-- 
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