[dxvk] Add dxvk.deviceFilter config option

dxvk.conf

@@ -1,3 +1,10 @@
+# Device filter. Only exposes devices whose Vulkan device name contains
+# the given string. May be useful to force an application to run on a
+# specific GPU, but not applications launched by that application.
+
+# dxvk.deviceFilter = ""
+
+
 # Expose the HDR10 ColorSpace (DXGI_COLOR_SPACE_RGB_FULL_G2084_NONE_P2020)
 # to the application by default.
 # This shows to the game that the global Windows 'HDR Mode' is enabled.
@@ -10,6 +17,7 @@
 
 # dxgi.enableHDR = True
 
+
 # Create the VkSurface on the first call to IDXGISwapChain::Present,
 # rather than when creating the swap chain. Some games that start
 # rendering with a different graphics API may require this option,

src/dxvk/dxvk_device_filter.cpp

@@ -2,11 +2,16 @@
 
 namespace dxvk {
   
-  DxvkDeviceFilter::DxvkDeviceFilter(DxvkDeviceFilterFlags flags)
+  DxvkDeviceFilter::DxvkDeviceFilter(
+          DxvkDeviceFilterFlags flags,
+    const DxvkOptions&          options)
   : m_flags(flags) {
     m_matchDeviceName = env::getEnvVar("DXVK_FILTER_DEVICE_NAME");
-    
-    if (m_matchDeviceName.size() != 0)
+
+    if (m_matchDeviceName.empty())
+      m_matchDeviceName = options.deviceFilter;
+
+    if (!m_matchDeviceName.empty())
       m_flags.set(DxvkDeviceFilterFlag::MatchDeviceName);
   }
   

src/dxvk/dxvk_device_filter.h

@@ -1,6 +1,7 @@
 #pragma once
 
 #include "dxvk_adapter.h"
+#include "dxvk_options.h"
 
 namespace dxvk {
   
@@ -31,7 +32,10 @@ namespace dxvk {
     
   public:
     
-    DxvkDeviceFilter(DxvkDeviceFilterFlags flags);
+    DxvkDeviceFilter(
+            DxvkDeviceFilterFlags flags,
+      const DxvkOptions&          options);
+
     ~DxvkDeviceFilter();
     
     /**

src/dxvk/dxvk_instance.cpp

@@ -256,7 +256,7 @@ namespace dxvk {
         filterFlags.set(DxvkDeviceFilterFlag::SkipCpuDevices);
     }
 
-    DxvkDeviceFilter filter(filterFlags);
+    DxvkDeviceFilter filter(filterFlags, m_options);
     std::vector<Rc<DxvkAdapter>> result;
 
     uint32_t numDGPU = 0;

src/dxvk/dxvk_options.cpp

@@ -13,6 +13,7 @@ namespace dxvk {
     hud                   = config.getOption<std::string>("dxvk.hud", "");
     tearFree              = config.getOption<Tristate>("dxvk.tearFree",               Tristate::Auto);
     hideIntegratedGraphics = config.getOption<bool>   ("dxvk.hideIntegratedGraphics", false);
+    deviceFilter          = config.getOption<std::string>("dxvk.deviceFilter",        "");
   }
 
 }

src/dxvk/dxvk_options.h

@@ -41,6 +41,9 @@ namespace dxvk {
     // present. May be necessary for some games that
     // incorrectly assume monitor layouts.
     bool hideIntegratedGraphics;
+
+    // Device name
+    std::string deviceFilter;
   };
 
 }