Added Vulkan PC OpenXR Support

Launcher/Build-DawnVulkan.ps1

@@ -0,0 +1,52 @@
+# Builds the pinned Dawn DLL with Aurora's native Windows Vulkan/OpenXR bridge.
+# Run on a maintainer machine with VS 2022 C++ tools, CMake, Git and Python 3.
+[CmdletBinding()]
+param(
+    [string]$WorkDirectory = (Join-Path $PSScriptRoot 'artifacts\dawn-vulkan-build'),
+    [string]$Destination = (Join-Path $PSScriptRoot 'artifacts\dawn-vulkan'),
+    [string]$Python = 'python',
+    [int]$Jobs = 8
+)
+$ErrorActionPreference = 'Stop'
+Set-StrictMode -Version 3.0
+$revision = '13abc3bc8ea2d3c2050f9e77a12d012108ceee24'
+$archiveHash = '713bea5b92d4f6c5175752fd7cbf1c3c5ce36598ff5dd98685d8a1216614ebba'
+$WorkDirectory = [IO.Path]::GetFullPath($WorkDirectory)
+$Destination = [IO.Path]::GetFullPath($Destination)
+[IO.Directory]::CreateDirectory($WorkDirectory) | Out-Null
+$archive = Join-Path $WorkDirectory 'dawn-source.tar.gz'
+if (-not (Test-Path -LiteralPath $archive)) {
+    Invoke-WebRequest "https://github.com/google/dawn/archive/$revision.tar.gz" -OutFile $archive -UseBasicParsing
+}
+if ((Get-FileHash -LiteralPath $archive -Algorithm SHA256).Hash.ToLowerInvariant() -ne $archiveHash) {
+    throw 'Dawn source archive does not match the pinned SHA-256.'
+}
+$source = Join-Path $WorkDirectory "dawn-$revision"
+if (-not (Test-Path -LiteralPath $source)) {
+    & $Python -c 'import sys,tarfile; tarfile.open(sys.argv[1]).extractall(sys.argv[2], filter="data")' $archive $WorkDirectory
+    if ($LASTEXITCODE -ne 0) { throw 'Dawn source extraction failed (Python 3.12+ required).' }
+}
+$patch = Join-Path $PSScriptRoot '..\aurora-main\patches\dawn\apply.py'
+& $Python $patch $source
+if ($LASTEXITCODE -ne 0) { throw 'Applying the Aurora Dawn bridge failed.' }
+$build = Join-Path $WorkDirectory 'build'
+& cmake -S $source -B $build -G 'Visual Studio 17 2022' -A x64 `
+    "-DPython3_EXECUTABLE=$Python" -DDAWN_FETCH_DEPENDENCIES=ON `
+    -DDAWN_BUILD_MONOLITHIC_LIBRARY=SHARED -DDAWN_ENABLE_INSTALL=ON `
+    -DDAWN_BUILD_SAMPLES=OFF -DDAWN_BUILD_TESTS=OFF -DDAWN_BUILD_BENCHMARKS=OFF `
+    -DTINT_BUILD_TESTS=OFF -DTINT_BUILD_CMD_TOOLS=OFF -DDAWN_USE_GLFW=OFF `
+    -DDAWN_ENABLE_D3D11=OFF -DDAWN_ENABLE_D3D12=ON -DDAWN_ENABLE_VULKAN=ON `
+    -DDAWN_ENABLE_DESKTOP_GL=OFF -DDAWN_ENABLE_OPENGLES=OFF "-DCMAKE_INSTALL_PREFIX=$Destination"
+if ($LASTEXITCODE -ne 0) { throw 'Dawn configuration failed.' }
+& cmake --build $build --config Release --parallel $Jobs
+if ($LASTEXITCODE -ne 0) { throw 'Dawn build failed.' }
+& cmake --install $build --config Release
+if ($LASTEXITCODE -ne 0) { throw 'Dawn installation failed.' }
+$dll = Join-Path $Destination 'bin\webgpu_dawn.dll'
+if (-not (Test-Path -LiteralPath $dll)) { throw "Dawn DLL missing: $dll" }
+[ordered]@{
+    SourceRevision = $revision
+    AuroraVulkanAbi = 1
+    DllSha256 = (Get-FileHash -LiteralPath $dll -Algorithm SHA256).Hash.ToLowerInvariant()
+} | ConvertTo-Json | Set-Content -LiteralPath (Join-Path $Destination 'aurora-vulkan.json') -Encoding UTF8
+Write-Host "Custom Dawn package ready: $Destination"

Launcher/Build-Installer.ps1

@@ -99,7 +99,7 @@ Assert-File (Join-Path $portableTools 'Ninja\ninja.exe') 'Portable Ninja'
 # to compile (launcher/Prepare-NativePrebuilt.ps1).
 # Kept in step with InstalledLayout.DependencyNames by Test-PinnedFacts.ps1: the installed host
 # refuses to call a toolkit complete unless every one of these directories is present.
-$requiredDependencies = @('abseil-cpp','cppwinrt','dawn_prebuilt','fmt','freetype','imgui','libusb','native_prebuilt','openxr','png','SDL','sqlite3','tracy','xxhash','zlib','zstd')
+$requiredDependencies = @('abseil-cpp','cppwinrt','dawn_prebuilt','fmt','freetype','imgui','libusb','native_prebuilt','openxr','png','SDL','sqlite3','tracy','vulkan_headers','xxhash','zlib','zstd')
 $missingSources = @($requiredDependencies | Where-Object { $_ -ne 'native_prebuilt' } |
     Where-Object { -not (Test-Path -LiteralPath (Join-Path $dependencySources $_) -PathType Container) })
 if ($missingSources.Count -gt 0) {

Launcher/Prepare-Dependencies.ps1

@@ -9,7 +9,9 @@ param(
     [string]$Destination,
     # Windows metadata source for cppwinrt.exe: 'local' (this machine's WinMetadata), 'sdk', or an
     # installed SDK version such as 10.0.26100.0.
-    [string]$CppWinRtInput = 'local'
+    [string]$CppWinRtInput = 'local',
+    # Output of Build-DawnVulkan.ps1. Rebuild native_prebuilt after changing Dawn.
+    [string]$DawnVulkanPackage
 )
 
 $ErrorActionPreference = 'Stop'
@@ -27,6 +29,11 @@ $runtimeCMake = Join-Path $repoRoot 'runtime\CMakeLists.txt'
 # FETCHCONTENT_SOURCE_DIR_<UPPERCASE NAME> (NativeBuildFlags.ps1), so the names are the declared
 # FetchContent names, not the upstream project names.
 $packages = @(
+    [pscustomobject]@{
+        Name = 'vulkan_headers'; File = 'vulkan-headers-015e25c3c91b70eb1a754d36fb14c4ba6ad9b0b9.tar.gz'
+        Uris = @('https://github.com/KhronosGroup/Vulkan-Headers/archive/015e25c3c91b70eb1a754d36fb14c4ba6ad9b0b9.tar.gz')
+        Pins = @(@{ File = $runtimeCMake; Text = 'Vulkan-Headers/archive/015e25c3c91b70eb1a754d36fb14c4ba6ad9b0b9.tar.gz' })
+    },
     [pscustomobject]@{
         Name = 'SDL'; File = 'SDL3-3.4.4.tar.gz'
         Uris = @('https://github.com/libsdl-org/SDL/releases/download/release-3.4.4/SDL3-3.4.4.tar.gz')
@@ -175,6 +182,22 @@ function Expand-Package([string]$Archive, [string]$Target) {
 foreach ($package in $packages) {
     Assert-Pinned $package
     $target = Join-Path $Destination $package.Name
+    if ($package.Name -eq 'dawn_prebuilt' -and $DawnVulkanPackage) {
+        $custom = [IO.Path]::GetFullPath($DawnVulkanPackage)
+        $manifest = Get-Content -LiteralPath (Join-Path $custom 'aurora-vulkan.json') -Raw | ConvertFrom-Json
+        $dll = Join-Path $custom 'bin\webgpu_dawn.dll'
+        if ($manifest.SourceRevision -ne '13abc3bc8ea2d3c2050f9e77a12d012108ceee24' -or
+            $manifest.AuroraVulkanAbi -ne 1 -or
+            (Get-FileHash -LiteralPath $dll -Algorithm SHA256).Hash.ToLowerInvariant() -ne $manifest.DllSha256) {
+            throw 'Custom Dawn package provenance or DLL hash does not match.'
+        }
+        if (Test-Path -LiteralPath $target) {
+            throw "Use a fresh dependency destination for custom Dawn: $target already exists."
+        }
+        Copy-Item -LiteralPath $custom -Destination $target -Recurse
+        Write-Host 'Prepared custom Dawn with Windows Vulkan OpenXR support'
+        continue
+    }
     if (Test-Path -LiteralPath $target -PathType Container) { continue }
     Expand-Package (Get-Archive $package) $target
     Write-Host "Prepared $($package.Name)"

Launcher/WiiCompiled.Setup.Windows/InstalledLayout.cs

@@ -27,7 +27,7 @@ internal static class InstalledLayout
     public static readonly string[] DependencyNames =
     [
         "abseil-cpp", "cppwinrt", "dawn_prebuilt", "fmt", "freetype", "imgui", "libusb", "native_prebuilt",
-        "openxr", "png", "SDL", "sqlite3", "tracy", "xxhash", "zlib", "zstd"
+        "openxr", "png", "SDL", "sqlite3", "tracy", "vulkan_headers", "xxhash", "zlib", "zstd"
     ];
 }