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# Copyright (c) Microsoft Corporation. All rights reserved.
# Licensed under the MIT License.
# This script adds cppwinrt support for VS-generated projects.
#
# target_cppwinrt(foo bar.idl)
#
# Calling target_midl function runs midlrt.exe and produces bar.h
# Calling target_cppwinrt function does two things:
#
# 1) Adds a target "bar.cppwinrt", which performs the midl and cppwinrt
# builds and produces:
# bar.h
# bar.winmd
# bar.tlb
# module.g.cpp
#
# 2) Adds a dependency to the new custom target "bar.cppwinrt"
function(target_midl
target_name
idl_file
output_name # output name of the generated headers, winmd and tlb
sdk_folder # sdk kit directory
sdk_version # sdk version
folder_name
midl_options # defines for the midl compiler
)
if (MSVC)
# get sdk include paths for midl
get_sdk_include_folder(${sdk_folder} ${sdk_version} sdk_include_folder)
set(um_sdk_directory "${sdk_include_folder}/um")
set(shared_sdk_directory "${sdk_include_folder}/shared")
set(winrt_sdk_directory "${sdk_include_folder}/winrt")
# get sdk metadata path
get_sdk_metadata_folder(${sdk_folder} ${sdk_version} sdk_metadata_directory_forward_slashes)
convert_forward_slashes_to_back(${sdk_metadata_directory_forward_slashes} sdk_metadata_directory)
# get midl
get_sdk_midl_exe(${sdk_folder} ${sdk_version} midl_exe)
# Filename variables
set(header_filename ${output_name}.h)
convert_forward_slashes_to_back(${idl_file} idl_file_forward_slash)
# using add_custom_command trick to prevent rerunning script unless ${file} is changed
add_custom_command(
OUTPUT ${header_filename}
COMMAND ${midl_exe}
/metadata_dir ${sdk_metadata_directory}
/W1 /char signed /nologo /winrt
/no_settings_comment /no_def_idir /target "NT60"
/I ${um_sdk_directory}
/I ${shared_sdk_directory}
/I ${winrt_sdk_directory}
/I ${CMAKE_CURRENT_SOURCE_DIR}
/h ${header_filename}
${midl_options}
${idl_file_forward_slash}
DEPENDS ${idl_file}
)
add_custom_target(
${target_name}
ALL
DEPENDS ${header_filename}
)
set_target_properties(${target_name} PROPERTIES FOLDER ${folder_name})
endif()
endfunction()
function(target_cppwinrt
target_name # the name of the target to add
file # name of the idl file to compile
output_name # output name of the generated headers, winmd and tlb
out_sources_folder # path where generated sources will be placed
sdk_folder # sdk kit directory
sdk_version # sdk version
folder_name # folder this target will be placed
midl_options # defines for the midl compiler
set_ns_prefix # set ns_prefix option
add_ref # set additional cppwinrt ref path
)
if (MSVC)
# get sdk include paths for midl
get_sdk_include_folder(${sdk_folder} ${sdk_version} sdk_include_folder)
set(um_sdk_directory "${sdk_include_folder}/um")
set(shared_sdk_directory "${sdk_include_folder}/shared")
set(winrt_sdk_directory "${sdk_include_folder}/winrt")
# get sdk metadata path
get_sdk_metadata_folder(${sdk_folder} ${sdk_version} sdk_metadata_directory_forward_slashes)
convert_forward_slashes_to_back(${sdk_metadata_directory_forward_slashes} sdk_metadata_directory)
# get midl
get_sdk_midl_exe(${sdk_folder} ${sdk_version} midl_exe)
# get cppwinrt
get_sdk_cppwinrt_exe(${sdk_folder} ${sdk_version} cppwinrt_exe)
# Filename variables
set(header_filename ${output_name}.h)
set(winmd_filename ${output_name}.winmd)
set(tlb_filename ${output_name}.tlb)
# Get directory
get_filename_component(idl_source_directory ${file} DIRECTORY)
if (NOT "${add_ref}" STREQUAL "")
convert_forward_slashes_to_back(${add_ref} add_ref)
endif()
set(target_outputs ${CMAKE_CURRENT_BINARY_DIR}/${target_name})
convert_forward_slashes_to_back(${target_outputs}/comp output_dir_back_slash)
convert_forward_slashes_to_back(${target_outputs}/temp temp_dir_back_slash)
convert_forward_slashes_to_back(${target_outputs}/comp_generated generated_dir_back_slash)
convert_forward_slashes_to_back(${generated_dir_back_slash}/module.g.cpp module_g_cpp_back_slash)
convert_forward_slashes_to_back(${generated_dir_back_slash}/module.g.excl.cpp module_g_ecxl_cpp_back_slash)
if (set_ns_prefix)
set(ns_prefix "/ns_prefix")
else()
set(ns_prefix "")
endif()
# Get name
set(renamed_idl_filename ${output_name}.idl)
set(renamed_idl_fullpath ${target_outputs}/${renamed_idl_filename})
get_filename_component(idl_source_filename ${file} NAME)
set(copied_idl_fullpath ${target_outputs}/${idl_source_filename})
file(COPY ${file} DESTINATION ${target_outputs})
file(RENAME ${copied_idl_fullpath} ${renamed_idl_fullpath})
convert_forward_slashes_to_back(${renamed_idl_fullpath} renamed_idl_fullpath_back_slash)
# using add_custom_command trick to prevent rerunning script unless ${file} is changed
add_custom_command(
OUTPUT ${header_filename} ${winmd_filename}
DEPENDS ${file}
COMMAND ${midl_exe}
/metadata_dir ${sdk_metadata_directory}
/W1 /char signed /nomidl /nologo /winrt
/no_settings_comment /no_def_idir /target "NT60"
/I ${CMAKE_CURRENT_BINARY_DIR}/winml_api
/I ${idl_source_directory}
/I ${um_sdk_directory}
/I ${shared_sdk_directory}
/I ${winrt_sdk_directory}
/winmd ${winmd_filename}
${ns_prefix}
/h ${header_filename}
/tlb ${tlb_filename}
${midl_options}
${renamed_idl_fullpath_back_slash}
COMMAND
${cppwinrt_exe} -in ${winmd_filename} -comp ${output_dir_back_slash} -pch dll/pch.h -ref ${sdk_metadata_directory} ${add_ref} -out ${generated_dir_back_slash} -verbose
COMMAND
# copy the generated component files into a temporary directory where headers exclusions will be applied
xcopy ${output_dir_back_slash} ${temp_dir_back_slash}\\ /Y /D
COMMAND
# for each file in the temp directory, ensure it is not in the exclusions list.
# if it is, then we need to delete it.
cmd /C "@echo off \
for /f %I in ('dir /b ${temp_dir_back_slash}') \
do \
( \
for /f %E in (${CPPWINRT_COMPONENT_EXCLUSION_LIST}) \
do \
( \
if %E == %I \
( \
del ${temp_dir_back_slash}\\%I \
) \
) \
)"
COMMAND
# for each file in the temp directory, copy the file back into the source tree
# unless the file already exists
cmd /C "@echo off \
for /f %I in ('dir /b ${temp_dir_back_slash}') \
do \
( \
if not exist ${out_sources_folder}\\%I \
( \
copy ${temp_dir_back_slash}\\%I ${out_sources_folder}\\%I \
) \
)"
COMMAND
# open the generated module.g.cpp and strip all the includes (lines) containing excluded headers
# write the new file out to module.g.excl.cpp.
powershell -Command "& { \
$exclusions = get-content '${CPPWINRT_COMPONENT_EXCLUSION_LIST}'; \
(get-content '${module_g_cpp_back_slash}') \
| where { \
$str = $_; \
$matches = ($exclusions | where { $str -match $_ }); \
$matches.Length -eq 0 } \
| Out-File '${module_g_ecxl_cpp_back_slash}' \
}"
BYPRODUCTS
${generated_dir_back_slash}/module.g.excl.cpp
VERBATIM
)
add_custom_target(
${target_name}
ALL
DEPENDS ${header_filename} ${winmd_filename}
)
set_target_properties(${target_name} PROPERTIES FOLDER ${folder_name})
endif()
endfunction()
function(add_generate_cppwinrt_sdk_headers_target
target_name # the name of the target to add
sdk_folder # sdk kit directory
sdk_version # sdk version
sdk_directory # the name of the folder to output the sdk headers to
folder_name # folder this target will be placed
)
if (MSVC)
# get the current nuget sdk's metadata directory
get_sdk_metadata_folder(${sdk_folder} ${sdk_version} metadata_folder)
# get cppwinrt
get_sdk_cppwinrt_exe(${sdk_folder} ${sdk_version} cppwinrt_exe)
# windows.winmd is consumed by cppwinrt to produce the sdk headers
set(windows_winmd "${metadata_folder}/windows.winmd")
# base.h along with the other winrt sdk headers are produced by this command
set(base_h "${sdk_directory}/winrt/base.h")
# using add_custom_command trick to prevent rerunning script unless ${windows_winmd} is changed
add_custom_command(
OUTPUT ${base_h}
DEPENDS ${windows_winmd}
COMMAND ${cppwinrt_exe} -in \"${metadata_folder}\" -out \"${sdk_directory}\" -verbose
)
# add the target
add_custom_target(${target_name} ALL DEPENDS ${base_h})
set_target_properties(${target_name} PROPERTIES FOLDER ${folder_name})
endif()
endfunction()
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