if (onnxruntime_MINIMAL_BUILD AND NOT onnxruntime_EXTENDED_MINIMAL_BUILD)

message(FATAL_ERROR "WebGPU EP can not be used in a basic minimal build. Please build with '--minimal_build extended'")

endif()

add_compile_definitions(USE_WEBGPU=1)

if (onnxruntime_ENABLE_WEBASSEMBLY_THREADS)

add_definitions(-DENABLE_WEBASSEMBLY_THREADS=1)

endif()

file(GLOB_RECURSE onnxruntime_providers_webgpu_cc_srcs CONFIGURE_DEPENDS

"${ONNXRUNTIME_ROOT}/core/providers/webgpu/*.h"

"${ONNXRUNTIME_ROOT}/core/providers/webgpu/*.cc"

)

if(NOT onnxruntime_DISABLE_CONTRIB_OPS)

source_group(TREE ${ONNXRUNTIME_ROOT} FILES ${onnxruntime_webgpu_contrib_ops_cc_srcs})

list(APPEND onnxruntime_providers_webgpu_cc_srcs ${onnxruntime_webgpu_contrib_ops_cc_srcs})

endif()

source_group(TREE ${REPO_ROOT} FILES ${onnxruntime_providers_webgpu_cc_srcs})

onnxruntime_add_static_library(onnxruntime_providers_webgpu ${onnxruntime_providers_webgpu_cc_srcs})

onnxruntime_add_include_to_target(onnxruntime_providers_webgpu

onnxruntime_common onnx onnx_proto flatbuffers::flatbuffers Boost::mp11 safeint_interface)

if (CMAKE_SYSTEM_NAME STREQUAL "Emscripten")

# target "emdawnwebgpu_c" is created by Dawn, including "-fno-exceptions" in its compile options by default.

#

# in ONNX Runtime build, "-s DISABLE_EXCEPTION_CATCHING=0" is appended to CMAKE_CXX_FLAGS by default unless build flag

# "--disable_wasm_exception_catching" is specified. It is not compatible with "-fno-exceptions".

#

# if "-s DISABLE_EXCEPTION_CATCHING=0" is set, we need to remove "-fno-exceptions" from emdawnwebgpu_c

if (CMAKE_CXX_FLAGS MATCHES "DISABLE_EXCEPTION_CATCHING=0")

get_property(EM_DAWN_WEBGPU_C_COMPILE_OPTIONS TARGET emdawnwebgpu_c PROPERTY COMPILE_OPTIONS)

list(REMOVE_ITEM EM_DAWN_WEBGPU_C_COMPILE_OPTIONS "-fno-exceptions")

set_property(TARGET emdawnwebgpu_c PROPERTY COMPILE_OPTIONS ${EM_DAWN_WEBGPU_C_COMPILE_OPTIONS})

endif()

# target "emdawnwebgpu_cpp" is created by Dawn. When it is linked to onnxruntime_providers_webgpu as "PUBLIC"

# dependency, a few build/link flags will be set automatically to make sure emscripten can generate correct

# WebAssembly/JavaScript code for WebGPU support.

target_link_libraries(onnxruntime_providers_webgpu PUBLIC emdawnwebgpu_cpp)

# ASYNCIFY is required for WGPUFuture support (ie. async functions in WebGPU API)

target_link_options(onnxruntime_providers_webgpu PUBLIC

"SHELL:-s ASYNCIFY=1"

"SHELL:-s ASYNCIFY_STACK_SIZE=65536"

)

else()

onnxruntime_add_include_to_target(onnxruntime_providers_webgpu dawn::dawncpp_headers dawn::dawn_headers)

set(onnxruntime_providers_webgpu_dll_deps)

if (onnxruntime_BUILD_DAWN_MONOLITHIC_LIBRARY)

target_link_libraries(onnxruntime_providers_webgpu dawn::webgpu_dawn)

if (WIN32)

if (onnxruntime_ENABLE_DELAY_LOADING_WIN_DLLS)

list(APPEND onnxruntime_DELAYLOAD_FLAGS "/DELAYLOAD:webgpu_dawn.dll")

endif()

list(APPEND onnxruntime_providers_webgpu_dll_deps "$<TARGET_FILE:dawn::webgpu_dawn>")

endif()

else()

if (NOT onnxruntime_USE_EXTERNAL_DAWN)

target_link_libraries(onnxruntime_providers_webgpu dawn::dawn_native)

endif()

target_link_libraries(onnxruntime_providers_webgpu dawn::dawn_proc)

endif()

if (WIN32 AND onnxruntime_ENABLE_DAWN_BACKEND_D3D12)

# Ensure dxil.dll and dxcompiler.dll exist in the output directory $<TARGET_FILE_DIR:dxcompiler>

add_dependencies(onnxruntime_providers_webgpu copy_dxil_dll)

add_dependencies(onnxruntime_providers_webgpu dxcompiler)

list(APPEND onnxruntime_providers_webgpu_dll_deps "$<TARGET_FILE_DIR:dxcompiler>/dxil.dll")

list(APPEND onnxruntime_providers_webgpu_dll_deps "$<TARGET_FILE_DIR:dxcompiler>/dxcompiler.dll")

endif()

if (onnxruntime_providers_webgpu_dll_deps)

# Copy dependency DLLs to the output directory

add_custom_command(

TARGET onnxruntime_providers_webgpu

POST_BUILD

COMMAND ${CMAKE_COMMAND} -E copy_if_different "${onnxruntime_providers_webgpu_dll_deps}" "$<TARGET_FILE_DIR:onnxruntime_providers_webgpu>"

COMMAND_EXPAND_LISTS

VERBATIM )

endif()

endif()

add_dependencies(onnxruntime_providers_webgpu ${onnxruntime_EXTERNAL_DEPENDENCIES})

set_target_properties(onnxruntime_providers_webgpu PROPERTIES FOLDER "ONNXRuntime")