Clear windows branch; preserve previous contents in win-old

patches/optiscaler/0004-serialize-device-hook-installation.patch

@@ -1,34 +0,0 @@
-diff --git a/OptiScaler/hooks/D3D12_Hooks.cpp b/OptiScaler/hooks/D3D12_Hooks.cpp
-index 3b757be..05fc194 100644
---- a/OptiScaler/hooks/D3D12_Hooks.cpp
-+++ b/OptiScaler/hooks/D3D12_Hooks.cpp
-@@ -2217,11 +2217,20 @@ static HRESULT hkD3D12GetInterface(REFCLSID rclsid, REFIID riid, void** ppvDebug
-     return result;
- }
- 
-+// Device discovery and NGX initialization can overlap. Installing d4r's
-+// command hooks can also create a device and re-enter this function. Never
-+// overwrite live Detours trampolines from a second installation attempt.
-+static std::recursive_mutex deviceHookMutex;
-+static bool deviceHookInstalling = false;
- static void HookToDevice(ID3D12Device* InDevice)
- {
--    if (o_CreateSampler != nullptr || InDevice == nullptr)
-+    std::lock_guard<std::recursive_mutex> lock(deviceHookMutex);
-+    if (o_CreateSampler != nullptr || InDevice == nullptr || deviceHookInstalling)
-         return;
- 
-+    deviceHookInstalling = true;
-+    struct InstallationGuard { ~InstallationGuard() { deviceHookInstalling = false; } } installationGuard;
-+
-     LOG_DEBUG("Dx12");
- 
-     // Get the vtable pointer
-@@ -2334,6 +2343,7 @@ static void HookToDevice(ID3D12Device* InDevice)
- 
- static void UnhookDevice()
- {
-+    std::lock_guard<std::recursive_mutex> lock(deviceHookMutex);
-     LOG_FUNC();
- 
-     DetourTransactionBegin();