From 8816c5048dade08530235a1bb4567e217fef4d06 Mon Sep 17 00:00:00 2001
From: Connor McLaughlin <stenzek@gmail.com>
Date: Tue, 3 Nov 2020 22:58:13 +1000
Subject: [PATCH] Android: Add CPU overclocking option

---
 .../app/src/cpp/android_host_interface.cpp    |  7 +++
 android/app/src/main/res/values/arrays.xml    | 48 +++++++++++++++++++
 .../src/main/res/xml/advanced_preferences.xml |  8 ++++
 3 files changed, 63 insertions(+)

diff --git a/android/app/src/cpp/android_host_interface.cpp b/android/app/src/cpp/android_host_interface.cpp
index 01cc460a9..1fb763767 100644
--- a/android/app/src/cpp/android_host_interface.cpp
+++ b/android/app/src/cpp/android_host_interface.cpp
@@ -175,6 +175,13 @@ void AndroidHostInterface::LoadAndConvertSettings()
   const std::string msaa_str = m_settings_interface.GetStringValue("GPU", "MSAA", "1");
   g_settings.gpu_multisamples = std::max<u32>(StringUtil::FromChars<u32>(msaa_str).value_or(1), 1);
   g_settings.gpu_per_sample_shading = StringUtil::EndsWith(msaa_str, "-ssaa");
+
+  // turn percentage into fraction for overclock
+  const u32 overclock_percent = static_cast<u32>(std::max(m_settings_interface.GetIntValue("CPU", "Overclock", 100), 1));
+  Settings::CPUOverclockPercentToFraction(overclock_percent, &g_settings.cpu_overclock_numerator,
+                                          &g_settings.cpu_overclock_denominator);
+  g_settings.cpu_overclock_enable = (overclock_percent != 100);
+  g_settings.UpdateOverclockActive();
 }
 
 void AndroidHostInterface::UpdateInputMap()
diff --git a/android/app/src/main/res/values/arrays.xml b/android/app/src/main/res/values/arrays.xml
index c7b91ec45..1335cde70 100644
--- a/android/app/src/main/res/values/arrays.xml
+++ b/android/app/src/main/res/values/arrays.xml
@@ -339,4 +339,52 @@
       <item>9.0</item>
       <item>10.0</item>
   </string-array>
+  <string-array name="settings_advanced_cpu_overclock_entries">
+      <item>25% (8MHz)</item>
+      <item>50% (16MHz)</item>
+      <item>75% (24MHz)</item>
+      <item>100% (33MHz, Default)</item>
+      <item>125% (41MHz)</item>
+      <item>150% (49MHz)</item>
+      <item>175% (57MHz)</item>
+      <item>200% (66MHz)</item>
+      <item>225% (74MHz)</item>
+      <item>250% (82MHz)</item>
+      <item>275% (90MHz)</item>
+      <item>300% (99MHz)</item>
+      <item>350% (115MHz)</item>
+      <item>400% (132MHz)</item>
+      <item>450% (148MHz)</item>
+      <item>500% (165MHz)</item>
+      <item>500% (165MHz)</item>
+      <item>600% (198MHz)</item>
+      <item>700% (231MHz)</item>
+      <item>800% (264MHz)</item>
+      <item>900% (297MHz)</item>
+      <item>1000% (330MHz)</item>
+  </string-array>
+  <string-array name="settings_advanced_cpu_overclock_values">
+      <item>25</item>
+      <item>50</item>
+      <item>75</item>
+      <item>100</item>
+      <item>125</item>
+      <item>150</item>
+      <item>175</item>
+      <item>200</item>
+      <item>225</item>
+      <item>250</item>
+      <item>275</item>
+      <item>300</item>
+      <item>350</item>
+      <item>400</item>
+      <item>450</item>
+      <item>500</item>
+      <item>500</item>
+      <item>600</item>
+      <item>700</item>
+      <item>800</item>
+      <item>900</item>
+      <item>1000</item>
+  </string-array>
 </resources>
diff --git a/android/app/src/main/res/xml/advanced_preferences.xml b/android/app/src/main/res/xml/advanced_preferences.xml
index 433a6d15a..da5d699c8 100644
--- a/android/app/src/main/res/xml/advanced_preferences.xml
+++ b/android/app/src/main/res/xml/advanced_preferences.xml
@@ -16,6 +16,14 @@
 
 <PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto">
+        <ListPreference
+            app:key="CPU/Overclock"
+            app:title="CPU Overclocking"
+            app:defaultValue="100"
+            app:entries="@array/settings_advanced_cpu_overclock_entries"
+            app:entryValues="@array/settings_advanced_cpu_overclock_values"
+            app:useSimpleSummaryProvider="true"
+            app:iconSpaceReserved="false" />
         <SwitchPreferenceCompat
             app:key="CDROM/RegionCheck"
             app:title="CD-ROM Region Check"