[dxgi] Add app-specific DXGI options

src/dxgi/dxgi_options.cpp

@@ -0,0 +1,20 @@
+#include "dxgi_options.h"
+
+#include <unordered_map>
+
+namespace dxvk {
+  
+  const static std::unordered_map<std::string, DxgiOptions> g_dxgiAppOptions = {{
+    { "Frostpunk.exe", DxgiOptions(DxgiOption::DeferSurfaceCreation) },
+  }};
+  
+  
+  DxgiOptions getDxgiAppOptions(const std::string& appName) {
+    auto appOptions = g_dxgiAppOptions.find(appName);
+    
+    return appOptions != g_dxgiAppOptions.end()
+      ? appOptions->second
+      : DxgiOptions();
+  }
+  
+}

src/dxgi/dxgi_options.h

@@ -0,0 +1,30 @@
+#pragma once
+
+#include "dxgi_include.h"
+
+namespace dxvk {
+  
+  /**
+   * \brief DXGI options
+   * 
+   * Per-app options that control the
+   * behaviour of some DXGI classes.
+   */
+  enum class DxgiOption : uint64_t {
+    /// Defer surface creation until first present call. This
+    /// fixes issues with games that create multiple swap chains
+    /// for a single window that may interfere with each other.
+    DeferSurfaceCreation,
+  };
+  
+  using DxgiOptions = Flags<DxgiOption>;
+  
+  /**
+   * \brief Gets app-specific DXGI options
+   * 
+   * \param [in] appName Application name
+   * \returns DXGI options for this application
+   */
+  DxgiOptions getDxgiAppOptions(const std::string& appName);
+  
+}

src/dxgi/meson.build

@@ -10,6 +10,7 @@ dxgi_src = [
   'dxgi_factory.cpp',
   'dxgi_format.cpp',
   'dxgi_main.cpp',
+  'dxgi_options.cpp',
   'dxgi_output.cpp',
   'dxgi_presenter.cpp',
   'dxgi_swapchain.cpp',