111 lines
4.0 KiB
CMake
111 lines
4.0 KiB
CMake
if(DRACO_CMAKE_DRACO_HELPERS_CMAKE_)
|
|
return()
|
|
endif() # DRACO_CMAKE_DRACO_HELPERS_CMAKE_
|
|
set(DRACO_CMAKE_DRACO_HELPERS_CMAKE_ 1)
|
|
|
|
# Kills build generation using message(FATAL_ERROR) and outputs all data passed
|
|
# to the console via use of $ARGN.
|
|
macro(draco_die)
|
|
message(FATAL_ERROR ${ARGN})
|
|
endmacro()
|
|
|
|
# Converts semi-colon delimited list variable(s) to string. Output is written to
|
|
# variable supplied via the DEST parameter. Input is from an expanded variable
|
|
# referenced by SOURCE and/or variable(s) referenced by SOURCE_VARS.
|
|
macro(draco_set_and_stringify)
|
|
set(optional_args)
|
|
set(single_value_args DEST SOURCE_VAR)
|
|
set(multi_value_args SOURCE SOURCE_VARS)
|
|
cmake_parse_arguments(sas "${optional_args}" "${single_value_args}"
|
|
"${multi_value_args}" ${ARGN})
|
|
|
|
if(NOT sas_DEST OR NOT (sas_SOURCE OR sas_SOURCE_VARS))
|
|
draco_die("draco_set_and_stringify: DEST and at least one of SOURCE "
|
|
"SOURCE_VARS required.")
|
|
endif()
|
|
|
|
unset(${sas_DEST})
|
|
|
|
if(sas_SOURCE)
|
|
# $sas_SOURCE is one or more expanded variables, just copy the values to
|
|
# $sas_DEST.
|
|
set(${sas_DEST} "${sas_SOURCE}")
|
|
endif()
|
|
|
|
if(sas_SOURCE_VARS)
|
|
# $sas_SOURCE_VARS is one or more variable names. Each iteration expands a
|
|
# variable and appends it to $sas_DEST.
|
|
foreach(source_var ${sas_SOURCE_VARS})
|
|
set(${sas_DEST} "${${sas_DEST}} ${${source_var}}")
|
|
endforeach()
|
|
|
|
# Because $sas_DEST can be empty when entering this scope leading whitespace
|
|
# can be introduced to $sas_DEST on the first iteration of the above loop.
|
|
# Remove it:
|
|
string(STRIP "${${sas_DEST}}" ${sas_DEST})
|
|
endif()
|
|
|
|
# Lists in CMake are simply semicolon delimited strings, so stringification is
|
|
# just a find and replace of the semicolon.
|
|
string(REPLACE ";" " " ${sas_DEST} "${${sas_DEST}}")
|
|
|
|
if(DRACO_VERBOSE GREATER 1)
|
|
message("draco_set_and_stringify: ${sas_DEST}=${${sas_DEST}}")
|
|
endif()
|
|
endmacro()
|
|
|
|
# Creates a dummy source file in $DRACO_GENERATED_SOURCES_DIRECTORY and adds it
|
|
# to the specified target. Optionally adds its path to a list variable.
|
|
#
|
|
# draco_create_dummy_source_file(<TARGET <target> BASENAME <basename of file>>
|
|
# [LISTVAR <list variable>])
|
|
macro(draco_create_dummy_source_file)
|
|
set(optional_args)
|
|
set(single_value_args TARGET BASENAME LISTVAR)
|
|
set(multi_value_args)
|
|
cmake_parse_arguments(cdsf "${optional_args}" "${single_value_args}"
|
|
"${multi_value_args}" ${ARGN})
|
|
|
|
if(NOT cdsf_TARGET OR NOT cdsf_BASENAME)
|
|
draco_die("draco_create_dummy_source_file: TARGET and BASENAME required.")
|
|
endif()
|
|
|
|
if(NOT DRACO_GENERATED_SOURCES_DIRECTORY)
|
|
set(DRACO_GENERATED_SOURCES_DIRECTORY "${draco_build}/gen_src")
|
|
endif()
|
|
|
|
set(dummy_source_dir "${DRACO_GENERATED_SOURCES_DIRECTORY}")
|
|
set(dummy_source_file
|
|
"${dummy_source_dir}/draco_${cdsf_TARGET}_${cdsf_BASENAME}.cc")
|
|
set(dummy_source_code
|
|
"// Generated file. DO NOT EDIT!\n"
|
|
"// C++ source file created for target ${cdsf_TARGET}.\n"
|
|
"void draco_${cdsf_TARGET}_${cdsf_BASENAME}_dummy_function(void)\;\n"
|
|
"void draco_${cdsf_TARGET}_${cdsf_BASENAME}_dummy_function(void) {}\n")
|
|
file(WRITE "${dummy_source_file}" ${dummy_source_code})
|
|
|
|
target_sources(${cdsf_TARGET} PRIVATE ${dummy_source_file})
|
|
|
|
if(cdsf_LISTVAR)
|
|
list(APPEND ${cdsf_LISTVAR} "${dummy_source_file}")
|
|
endif()
|
|
endmacro()
|
|
|
|
# Loads the version string from $draco_source/draco/version.h and sets
|
|
# $DRACO_VERSION.
|
|
macro(draco_load_version_info)
|
|
file(STRINGS "${draco_src_root}/core/draco_version.h" version_file_strings)
|
|
foreach(str ${version_file_strings})
|
|
if(str MATCHES "char kDracoVersion")
|
|
string(FIND "${str}" "\"" open_quote_pos)
|
|
string(FIND "${str}" ";" semicolon_pos)
|
|
math(EXPR open_quote_pos "${open_quote_pos} + 1")
|
|
math(EXPR close_quote_pos "${semicolon_pos} - 1")
|
|
math(EXPR version_string_length "${close_quote_pos} - ${open_quote_pos}")
|
|
string(SUBSTRING "${str}" ${open_quote_pos} ${version_string_length}
|
|
DRACO_VERSION)
|
|
break()
|
|
endif()
|
|
endforeach()
|
|
endmacro()
|