[build] disable vcpkg for Dawn temporarily (#24838)

### Description
<!-- Describe your changes. -->



### Motivation and Context
<!-- - Why is this change required? What problem does it solve?
- If it fixes an open issue, please link to the issue here. -->

Author: fs-eire

.github/workflows/macos-ci-build-and-test-workflow.yml

@@ -51,7 +51,7 @@ jobs:
         --build_objc
         --build_java
         --build_wheel
-        ${{ inputs.use_webgpu && '--use_webgpu --cmake_extra_defines onnxruntime_BUILD_DAWN_MONOLITHIC_LIBRARY=ON' || '' }}
+        ${{ inputs.use_webgpu && '--use_webgpu' || '' }}
         ${{ inputs.use_xnnpack && '--use_xnnpack' || '' }}
         ${{ inputs.use_coreml && '--use_coreml' || '' }}
         --use_vcpkg --use_vcpkg_ms_internal_asset_cache

cmake/CMakeLists.txt

@@ -1067,7 +1067,11 @@ if (onnxruntime_USE_WEBGPU)
   list(APPEND ORT_PROVIDER_FLAGS -DUSE_WEBGPU=1)
   list(APPEND ONNXRUNTIME_PROVIDER_NAMES webgpu)
 
-  if (onnxruntime_USE_VCPKG AND NOT CMAKE_SYSTEM_NAME STREQUAL "Emscripten")
+  # TODO: the following code is used to disable building Dawn using vcpkg temporarily
+  # until we figure out how to resolve the packaging pipeline failures
+  #
+  # if (onnxruntime_USE_VCPKG AND NOT CMAKE_SYSTEM_NAME STREQUAL "Emscripten")
+  if (FALSE)
     if (NOT onnxruntime_BUILD_DAWN_MONOLITHIC_LIBRARY)
       message(FATAL_ERROR "onnxruntime_USE_VCPKG is not supported with onnxruntime_BUILD_DAWN_MONOLITHIC_LIBRARY=OFF")
     endif()

cmake/external/onnxruntime_external_deps.cmake

@@ -625,7 +625,11 @@ endif()
 
 
 if (onnxruntime_USE_WEBGPU)
-  if (onnxruntime_USE_VCPKG AND NOT CMAKE_SYSTEM_NAME STREQUAL "Emscripten")
+  # TODO: the following code is used to disable building Dawn using vcpkg temporarily
+  # until we figure out how to resolve the packaging pipeline failures
+  #
+  # if (onnxruntime_USE_VCPKG AND NOT CMAKE_SYSTEM_NAME STREQUAL "Emscripten")
+  if (FALSE)
     # vcpkg does not support Emscripten yet
     find_package(dawn REQUIRED)
   else()
@@ -739,7 +743,13 @@ if (onnxruntime_USE_WEBGPU)
           # - (private) Force enable f16 support for NVIDIA Vulkan
           #   Dawn disabled f16 support for NVIDIA Vulkan by default because of crashes in f16 CTS tests (crbug.com/tint/2164).
           #   Since the crashes are limited to specific GPU models, we patched Dawn to remove the restriction.
-          ${Patch_EXECUTABLE} --binary --ignore-whitespace -p1 < ${PROJECT_SOURCE_DIR}/patches/dawn/dawn_force_enable_f16_nvidia_vulkan.patch)
+          ${Patch_EXECUTABLE} --binary --ignore-whitespace -p1 < ${PROJECT_SOURCE_DIR}/patches/dawn/dawn_force_enable_f16_nvidia_vulkan.patch &&
+
+          # The dawn_fix_copy_dxil_dll.patch contains the following changes:
+          #
+          # - (private) Fix copy of dxil.dll in Dawn
+          #   The patch ensures the copy of dxil.dll to be done after the build step of `dxcompiler` target.
+          ${Patch_EXECUTABLE} --binary --ignore-whitespace -p1 < ${PROJECT_SOURCE_DIR}/patches/dawn/dawn_fix_copy_dxil_dll.patch)
 
       onnxruntime_fetchcontent_declare(
         dawn

cmake/onnxruntime_java.cmake

@@ -177,7 +177,11 @@ if (WIN32)
     endif()
     if (onnxruntime_USE_WEBGPU)
       if (onnxruntime_ENABLE_DAWN_BACKEND_D3D12)
-        if (onnxruntime_USE_VCPKG)
+        # TODO: the following code is used to disable building Dawn using vcpkg temporarily
+        # until we figure out how to resolve the packaging pipeline failures
+        #
+        # if (onnxruntime_USE_VCPKG)
+        if (FALSE)
           add_custom_command(
             TARGET onnxruntime4j_jni POST_BUILD COMMAND ${CMAKE_COMMAND} -E copy_if_different
                 $<TARGET_FILE:Microsoft::DXIL>

cmake/onnxruntime_nodejs.cmake

@@ -74,7 +74,11 @@ endif()
 if (onnxruntime_USE_WEBGPU)
     set(NODEJS_BINDING_USE_WEBGPU "--use_webgpu")
     if (WIN32 AND onnxruntime_ENABLE_DAWN_BACKEND_D3D12)
-        if (onnxruntime_USE_VCPKG)
+        # TODO: the following code is used to disable building Dawn using vcpkg temporarily
+        # until we figure out how to resolve the packaging pipeline failures
+        #
+        # if (onnxruntime_USE_VCPKG)
+        if (FALSE)
             list(APPEND NODEJS_DLL_DEPS "$<TARGET_FILE:Microsoft::DXIL>")
             list(APPEND NODEJS_DLL_DEPS "$<TARGET_FILE:Microsoft::DirectXShaderCompiler>")
         else()

cmake/onnxruntime_providers_webgpu.cmake

@@ -59,7 +59,11 @@
           list(APPEND onnxruntime_DELAYLOAD_FLAGS "/DELAYLOAD:webgpu_dawn.dll")
         endif()
 
-        if (onnxruntime_USE_VCPKG)
+        # TODO: the following code is used to disable building Dawn using vcpkg temporarily
+        # until we figure out how to resolve the packaging pipeline failures
+        #
+        # if (onnxruntime_USE_VCPKG)
+        if (FALSE)
           # Fix Dawn vcpkg build issue (missing IMPORTED_IMPLIB and IMPORTED_LOCATION for target dawn::webgpu_dawn)
           get_target_property(webgpu_dawn_target_IMPORTED_IMPLIB dawn::webgpu_dawn IMPORTED_IMPLIB)
           if (NOT webgpu_dawn_target_IMPORTED_IMPLIB)
@@ -82,7 +86,11 @@
 
     if (WIN32 AND onnxruntime_ENABLE_DAWN_BACKEND_D3D12)
       # Ensure dxil.dll and dxcompiler.dll exist in the output directory $<TARGET_FILE_DIR:dxcompiler>
-      if (onnxruntime_USE_VCPKG)
+      # TODO: the following code is used to disable building Dawn using vcpkg temporarily
+      # until we figure out how to resolve the packaging pipeline failures
+      #
+      # if (onnxruntime_USE_VCPKG)
+      if (FALSE)
         find_package(directx-dxc CONFIG REQUIRED)
         target_link_libraries(onnxruntime_providers_webgpu Microsoft::DirectXShaderCompiler)
         target_link_libraries(onnxruntime_providers_webgpu Microsoft::DXIL)

cmake/onnxruntime_python.cmake

@@ -1075,7 +1075,11 @@ endif()
 
 if (onnxruntime_USE_WEBGPU)
   if (WIN32 AND onnxruntime_ENABLE_DAWN_BACKEND_D3D12)
-    if (onnxruntime_USE_VCPKG)
+    # TODO: the following code is used to disable building Dawn using vcpkg temporarily
+    # until we figure out how to resolve the packaging pipeline failures
+    #
+    # if (onnxruntime_USE_VCPKG)
+    if (FALSE)
       add_custom_command(
         TARGET onnxruntime_pybind11_state POST_BUILD
         COMMAND ${CMAKE_COMMAND} -E copy

cmake/patches/dawn/dawn_fix_copy_dxil_dll.patch

@@ -0,0 +1,13 @@
+diff --git a/third_party/CMakeLists.txt b/third_party/CMakeLists.txt
+index cdfde38819..fc5ff76421 100644
+--- a/third_party/CMakeLists.txt
++++ b/third_party/CMakeLists.txt
+@@ -352,6 +352,8 @@ function(AddSubdirectoryDXC)
+             TARGET copy_dxil_dll
+             COMMAND ${CMAKE_COMMAND} -E copy_if_different ${DXIL_DLL_PATH} $<TARGET_FILE_DIR:dxcompiler>
+             COMMENT "Copying ${DXIL_DLL_PATH} to $<TARGET_FILE_DIR:dxcompiler>")
++        # Ensure folder "$<TARGET_FILE_DIR:dxcompiler>" exists when copying the dll
++        add_dependencies(copy_dxil_dll dxcompiler)
+         # Make dxc target depend on copy_dxil_dll
+         add_dependencies(dxc copy_dxil_dll)
+     endif()

cmake/vcpkg.json

@@ -93,7 +93,7 @@
     },
     "webgpu-ep": {
       "description": "Build with WebGPU EP",
-      "dependencies": [{ "name": "dawn", "platform": "!emscripten" }]
+      "dependencies": []
     }
   },
   "overrides": [