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# Copyright (c) Microsoft Corporation. All rights reserved.
# Licensed under the MIT License.
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")
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