Add icd.d JSON files for local, non-bundled builds

distribution/macos/vulkan/icd.d/MoltenVK_icd-flat.json

@@ -0,0 +1,8 @@
+{
+    "file_format_version" : "1.0.0",
+    "ICD": {
+        "library_path": "../../libMoltenVK.dylib",
+        "api_version" : "1.4.0",
+        "is_portability_driver" : true
+    }
+}

distribution/macos/vulkan/icd.d/libkosmickrisp_icd-flat.json

@@ -0,0 +1,7 @@
+{
+    "ICD": {
+        "api_version": "1.3.0",
+        "library_path": "../../libvulkan_kosmickrisp.dylib"
+    },
+    "file_format_version": "1.0.1"
+}

src/Ryujinx.Graphics.Vulkan/VulkanDriver.cs

@@ -10,9 +10,19 @@ namespace Ryujinx.Graphics.Vulkan
         private static string GetIcdPath(string fileName)
         {
             string contentsDir = Path.GetDirectoryName(AppContext.BaseDirectory.TrimEnd('/'))!;
-            string icdPath = Path.Combine(contentsDir, "Resources", "vulkan", "icd.d", fileName);
+            string[] searchPaths =
+            [
+                Path.Combine(contentsDir, "Resources", "vulkan", "icd.d", fileName),
+                Path.Combine(contentsDir, "vulkan", "icd.d", fileName)
+            ];
 
-            return !File.Exists(icdPath) ? throw new FileNotFoundException($"{fileName} not found", icdPath) : icdPath;
+            foreach (string icdPath in searchPaths)
+            {
+                if (File.Exists(icdPath))
+                    return icdPath;
+            }
+
+            throw new FileNotFoundException($"{fileName} not found");
         }
 
         public static void MoltenVK()

src/Ryujinx/Ryujinx.csproj

@@ -90,6 +90,18 @@
     </Content>
   </ItemGroup>
 
+  <ItemGroup Condition="'$(RuntimeIdentifier)' == 'osx-arm64' OR '$(RuntimeIdentifier)' == 'osx-x64'">
+    <Content Include="..\..\distribution\macos\vulkan\icd.d\MoltenVK_icd-flat.json"
+          CopyToOutputDirectory="PreserveNewest"
+          Link="vulkan\icd.d\MoltenVK_icd.json" />
+  </ItemGroup>
+
+  <ItemGroup Condition="'$(RuntimeIdentifier)' == 'osx-arm64'">
+    <Content Include="..\..\distribution\macos\vulkan\icd.d\libkosmickrisp_icd-flat.json"
+          CopyToOutputDirectory="PreserveNewest"
+          Link="vulkan\icd.d\libkosmickrisp_icd.json" />
+  </ItemGroup>
+  
   <ItemGroup Condition="'$(RuntimeIdentifier)' == 'linux-x64' OR '$(RuntimeIdentifier)' == 'linux-arm64'" >
     <Content Include="..\..\distribution\linux\Ryujinx.sh">
       <CopyToOutputDirectory>Always</CopyToOutputDirectory>