audio_patches: check if Windows version is supported

UnleashedRecomp/CMakeLists.txt

@@ -38,6 +38,7 @@ set(SWA_KERNEL_CXX_SOURCES
     "kernel/xdm.cpp"
     "kernel/heap.cpp"
     "kernel/memory.cpp"
+    "kernel/platform.cpp"
     "kernel/xam.cpp"
     "kernel/io/file_system.cpp"
 )

UnleashedRecomp/framework.h

@@ -14,6 +14,13 @@
 #define SWA_API extern "C" SWA_DLLIMPORT
 #endif
 
+#define PROC_ADDRESS(libraryName, procName) \
+    GetProcAddress(LoadLibrary(TEXT(libraryName)), procName)
+
+#define LIB_FUNCTION(returnType, libraryName, procName, ...) \
+    typedef returnType _##procName(__VA_ARGS__); \
+    _##procName* procName = (_##procName*)PROC_ADDRESS(libraryName, #procName);
+
 template<typename T>
 void ByteSwap(T& value)
 {

UnleashedRecomp/kernel/platform.cpp

@@ -0,0 +1,24 @@
+#include <kernel/platform.h>
+
+#if _WIN32
+LIB_FUNCTION(LONG, "ntdll.dll", RtlGetVersion, PRTL_OSVERSIONINFOW);
+#endif
+
+PlatformVersion GetPlatformVersion()
+{
+    auto result = PlatformVersion{};
+
+#if _WIN32
+    OSVERSIONINFOEXW osvi = { 0 };
+    osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFOEXW);
+
+    if (RtlGetVersion((PRTL_OSVERSIONINFOW)&osvi) != 0)
+        return result;
+
+    result.Major = osvi.dwMajorVersion;
+    result.Minor = osvi.dwMinorVersion;
+    result.Build = osvi.dwBuildNumber;
+#endif
+
+    return result;
+}

UnleashedRecomp/kernel/platform.h

@@ -0,0 +1,11 @@
+#pragma once
+
+struct PlatformVersion
+{
+public:
+    uint32_t Major{};
+    uint32_t Minor{};
+    uint32_t Build{};
+};
+
+extern PlatformVersion GetPlatformVersion();

UnleashedRecomp/locale/config_locale.h

@@ -157,7 +157,7 @@ CONFIG_DEFINE_LOCALE(SEVolume)
 
 CONFIG_DEFINE_LOCALE(MusicAttenuation)
 {
-    { ELanguage::English, { "Music Attenuation", "Fade out the game's music when external media is playing.\n\nRequires Windows 10 or later." } }
+    { ELanguage::English, { "Music Attenuation", "Fade out the game's music when external media is playing." } }
 };
 
 CONFIG_DEFINE_LOCALE(VoiceLanguage)

UnleashedRecomp/locale/locale.h

@@ -41,6 +41,12 @@ inline static std::unordered_map<std::string, std::unordered_map<ELanguage, std:
         {
             { ELanguage::English, "This option is not available at this location." }
         }
+    },
+    {
+        "Options_Desc_OSNotSupported",
+        {
+            { ELanguage::English, "This option is not supported by your operating system." }
+        }
     }
 };
 

UnleashedRecomp/patches/audio_patches.cpp

@@ -1,6 +1,7 @@
 #include <cpu/guest_code.h>
 #include <cfg/config.h>
 #include <kernel/function.h>
+#include <kernel/platform.h>
 #include <patches/audio_patches.h>
 
 #if _WIN32
@@ -37,6 +38,8 @@ bool IsExternalAudioPlaying()
 
     return session.GetPlaybackInfo().PlaybackStatus() == GlobalSystemMediaTransportControlsSessionPlaybackStatus::Playing;
 }
+
+int AudioPatches::m_isAttenuationSupported = -1;
 #endif
 
 be<float>* GetVolume(bool isMusic = true)
@@ -50,6 +53,22 @@ be<float>* GetVolume(bool isMusic = true)
     return (be<float>*)g_memory.Translate(4 * ((int)isMusic + 0x1C) + ((be<uint32_t>*)g_memory.Translate(ppUnkClass->get() + 4))->get());
 }
 
+bool AudioPatches::CanAttenuate()
+{
+#if _WIN32
+    if (m_isAttenuationSupported >= 0)
+        return m_isAttenuationSupported;
+
+    auto version = GetPlatformVersion();
+
+    m_isAttenuationSupported = version.Major == 10 && version.Build >= 17763;
+
+    return m_isAttenuationSupported;
+#else
+    return false;
+#endif
+}
+
 void AudioPatches::Update(float deltaTime)
 {
     auto pMusicVolume = GetVolume();
@@ -59,7 +78,7 @@ void AudioPatches::Update(float deltaTime)
         return;
 
 #if _WIN32
-    if (Config::MusicAttenuation)
+    if (Config::MusicAttenuation && CanAttenuate())
     {
         auto time = 1.0f - expf(2.5f * -deltaTime);
 

UnleashedRecomp/patches/audio_patches.h

@@ -2,6 +2,10 @@
 
 class AudioPatches
 {
+protected:
+    static int m_isAttenuationSupported;
+
 public:
+    static bool CanAttenuate();
     static void Update(float deltaTime);
 };

UnleashedRecomp/ui/options_menu.cpp

@@ -8,6 +8,8 @@
 #include <kernel/memory.h>
 #include <locale/locale.h>
 
+#include <patches/audio_patches.h>
+
 constexpr float COMMON_PADDING_POS_Y = 118.0f;
 constexpr float COMMON_PADDING_POS_X = 30.0f;
 constexpr float INFO_CONTAINER_POS_X = 870.0f;
@@ -859,7 +861,7 @@ static void DrawConfigOptions()
         DrawConfigOption(rowCount++, yOffset, &Config::SEVolume, true);
         DrawConfigOption(rowCount++, yOffset, &Config::VoiceLanguage, true);
         DrawConfigOption(rowCount++, yOffset, &Config::Subtitles, true);
-        DrawConfigOption(rowCount++, yOffset, &Config::MusicAttenuation, true); // TODO: grey this out for non-Windows platforms.
+        DrawConfigOption(rowCount++, yOffset, &Config::MusicAttenuation, AudioPatches::CanAttenuate(), &Localise("Options_Desc_OSNotSupported"));
         DrawConfigOption(rowCount++, yOffset, &Config::WerehogBattleMusic, true);
         break;
     case 3: // VIDEO