[dxvk] Add option to skip integrated GPU adapters

dxvk.conf

@@ -634,3 +634,15 @@
 # - True/False
 
 # dxgi.useMonitorFallback = False
+
+
+# Hide integrated graphics from applications
+#
+# Only has an effect when dedicated GPUs are present on the system. It is
+# not recommended to use this option at all unless absolutely necessary for
+# a game to work; prefer using DXVK_FILTER_DEVICE_NAME whenever possible.
+#
+# Supported values:
+# - True/False
+
+# dxvk.hideIntegratedGraphics = False

src/dxvk/dxvk_instance.cpp

@@ -286,7 +286,12 @@ namespace dxvk {
 
         return aRank < bRank;
       });
-    
+
+    if (m_options.hideIntegratedGraphics && numDGPU > 0 && numIGPU > 0) {
+      result.resize(numDGPU);
+      numIGPU = 0;
+    }
+
     if (result.empty()) {
       Logger::warn("DXVK: No adapters found. Please check your "
                    "device filter settings and Vulkan setup. "

src/dxvk/dxvk_options.cpp

@@ -12,6 +12,7 @@ namespace dxvk {
     maxChunkSize          = config.getOption<int32_t> ("dxvk.maxChunkSize",           0);
     hud                   = config.getOption<std::string>("dxvk.hud", "");
     tearFree              = config.getOption<Tristate>("dxvk.tearFree",               Tristate::Auto);
+    hideIntegratedGraphics = config.getOption<bool>   ("dxvk.hideIntegratedGraphics", false);
   }
 
 }

src/dxvk/dxvk_options.h

@@ -36,6 +36,11 @@ namespace dxvk {
     /// Forces swap chain into MAILBOX (if true)
     /// or FIFO_RELAXED (if false) present mode
     Tristate tearFree;
+
+    // Hides integrated GPUs if dedicated GPUs are
+    // present. May be necessary for some games that
+    // incorrectly assume monitor layouts.
+    bool hideIntegratedGraphics;
   };
 
 }