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if(DRACO_CMAKE_DRACO_OPTIONS_CMAKE_)
return()
endif() # DRACO_CMAKE_DRACO_OPTIONS_CMAKE_
set(DRACO_CMAKE_DRACO_OPTIONS_CMAKE_)
set(draco_features_file_name "${draco_build}/draco/draco_features.h")
set(draco_features_list)
# Simple wrapper for CMake's builtin option command that tracks draco's build
# options in the list variable $draco_options.
macro(draco_option)
unset(option_NAME)
unset(option_HELPSTRING)
unset(option_VALUE)
unset(optional_args)
unset(multi_value_args)
set(single_value_args NAME HELPSTRING VALUE)
cmake_parse_arguments(option "${optional_args}" "${single_value_args}"
"${multi_value_args}" ${ARGN})
if(NOT (option_NAME AND option_HELPSTRING AND DEFINED option_VALUE))
message(FATAL_ERROR "draco_option: NAME HELPSTRING and VALUE required.")
endif()
option(${option_NAME} ${option_HELPSTRING} ${option_VALUE})
if(DRACO_VERBOSE GREATER 2)
message("--------- draco_option ---------\n" "option_NAME=${option_NAME}\n"
"option_HELPSTRING=${option_HELPSTRING}\n"
"option_VALUE=${option_VALUE}\n"
"------------------------------------------\n")
endif()
list(APPEND draco_options ${option_NAME})
list(REMOVE_DUPLICATES draco_options)
endmacro()
# Dumps the $draco_options list via CMake message command.
macro(draco_dump_options)
foreach(option_name ${draco_options})
message("${option_name}: ${${option_name}}")
endforeach()
endmacro()
# Set default options.
macro(draco_set_default_options)
draco_option(NAME DRACO_FAST HELPSTRING "Try to build faster libs." VALUE OFF)
draco_option(NAME DRACO_JS_GLUE HELPSTRING
"Enable JS Glue and JS targets when using Emscripten." VALUE ON)
draco_option(NAME DRACO_IE_COMPATIBLE HELPSTRING
"Enable support for older IE builds when using Emscripten." VALUE
OFF)
draco_option(NAME DRACO_MESH_COMPRESSION HELPSTRING "Enable mesh compression."
VALUE ON)
draco_option(NAME DRACO_POINT_CLOUD_COMPRESSION HELPSTRING
"Enable point cloud compression." VALUE ON)
draco_option(NAME DRACO_PREDICTIVE_EDGEBREAKER HELPSTRING
"Enable predictive edgebreaker." VALUE ON)
draco_option(NAME DRACO_STANDARD_EDGEBREAKER HELPSTRING
"Enable stand edgebreaker." VALUE ON)
draco_option(NAME DRACO_BACKWARDS_COMPATIBILITY HELPSTRING
"Enable backwards compatibility." VALUE ON)
draco_option(NAME DRACO_DECODER_ATTRIBUTE_DEDUPLICATION HELPSTRING
"Enable attribute deduping." VALUE OFF)
draco_option(NAME DRACO_TESTS HELPSTRING "Enables tests." VALUE OFF)
draco_option(NAME DRACO_WASM HELPSTRING "Enables WASM support." VALUE OFF)
draco_option(NAME DRACO_UNITY_PLUGIN HELPSTRING
"Build plugin library for Unity." VALUE OFF)
draco_option(NAME DRACO_ANIMATION_ENCODING HELPSTRING "Enable animation."
VALUE OFF)
draco_option(NAME DRACO_GLTF HELPSTRING "Support GLTF." VALUE OFF)
draco_option(NAME DRACO_MAYA_PLUGIN HELPSTRING
"Build plugin library for Maya." VALUE OFF)
draco_check_deprecated_options()
endmacro()
# Warns when a deprecated option is used and sets the option that replaced it.
macro(draco_handle_deprecated_option)
unset(option_OLDNAME)
unset(option_NEWNAME)
unset(optional_args)
unset(multi_value_args)
set(single_value_args OLDNAME NEWNAME)
cmake_parse_arguments(option "${optional_args}" "${single_value_args}"
"${multi_value_args}" ${ARGN})
if("${${option_OLDNAME}}")
message(WARNING "${option_OLDNAME} is deprecated. Use ${option_NEWNAME}.")
set(${option_NEWNAME} ${${option_OLDNAME}})
endif()
endmacro()
# Checks for use of deprecated options.
macro(draco_check_deprecated_options)
draco_handle_deprecated_option(OLDNAME ENABLE_EXTRA_SPEED NEWNAME DRACO_FAST)
draco_handle_deprecated_option(OLDNAME ENABLE_JS_GLUE NEWNAME DRACO_JS_GLUE)
draco_handle_deprecated_option(OLDNAME ENABLE_MESH_COMPRESSION NEWNAME
DRACO_MESH_COMPRESSION)
draco_handle_deprecated_option(OLDNAME ENABLE_POINT_CLOUD_COMPRESSION NEWNAME
DRACO_POINT_CLOUD_COMPRESSION)
draco_handle_deprecated_option(OLDNAME ENABLE_PREDICTIVE_EDGEBREAKER NEWNAME
DRACO_PREDICTIVE_EDGEBREAKER)
draco_handle_deprecated_option(OLDNAME ENABLE_STANDARD_EDGEBREAKER NEWNAME
DRACO_STANDARD_EDGEBREAKER)
draco_handle_deprecated_option(OLDNAME ENABLE_BACKWARDS_COMPATIBILITY NEWNAME
DRACO_BACKWARDS_COMPATIBILITY)
draco_handle_deprecated_option(OLDNAME ENABLE_DECODER_ATTRIBUTE_DEDUPLICATION
NEWNAME DRACO_DECODER_ATTRIBUTE_DEDUPLICATION)
draco_handle_deprecated_option(OLDNAME ENABLE_TESTS NEWNAME DRACO_TESTS)
draco_handle_deprecated_option(OLDNAME ENABLE_WASM NEWNAME DRACO_WASM)
draco_handle_deprecated_option(OLDNAME BUILD_UNITY_PLUGIN NEWNAME
DRACO_UNITY_PLUGIN)
draco_handle_deprecated_option(OLDNAME BUILD_ANIMATION_ENCODING NEWNAME
DRACO_ANIMATION_ENCODING)
draco_handle_deprecated_option(OLDNAME BUILD_FOR_GLTF NEWNAME DRACO_GLTF)
draco_handle_deprecated_option(OLDNAME BUILD_MAYA_PLUGIN NEWNAME
DRACO_MAYA_PLUGIN)
draco_handle_deprecated_option(OLDNAME BUILD_USD_PLUGIN NEWNAME
BUILD_SHARED_LIBS)
endmacro()
# Macro for setting Draco features based on user configuration. Features enabled
# by this macro are Draco global.
macro(draco_set_optional_features)
if(DRACO_GLTF)
# Override settings when building for GLTF.
draco_enable_feature(FEATURE "DRACO_MESH_COMPRESSION_SUPPORTED")
draco_enable_feature(FEATURE "DRACO_NORMAL_ENCODING_SUPPORTED")
draco_enable_feature(FEATURE "DRACO_STANDARD_EDGEBREAKER_SUPPORTED")
else()
if(DRACO_POINT_CLOUD_COMPRESSION)
draco_enable_feature(FEATURE "DRACO_POINT_CLOUD_COMPRESSION_SUPPORTED")
endif()
if(DRACO_MESH_COMPRESSION)
draco_enable_feature(FEATURE "DRACO_MESH_COMPRESSION_SUPPORTED")
draco_enable_feature(FEATURE "DRACO_NORMAL_ENCODING_SUPPORTED")
if(DRACO_STANDARD_EDGEBREAKER)
draco_enable_feature(FEATURE "DRACO_STANDARD_EDGEBREAKER_SUPPORTED")
endif()
if(DRACO_PREDICTIVE_EDGEBREAKER)
draco_enable_feature(FEATURE "DRACO_PREDICTIVE_EDGEBREAKER_SUPPORTED")
endif()
endif()
if(DRACO_BACKWARDS_COMPATIBILITY)
draco_enable_feature(FEATURE "DRACO_BACKWARDS_COMPATIBILITY_SUPPORTED")
endif()
if(NOT EMSCRIPTEN)
# For now, enable deduplication for both encoder and decoder.
# TODO(ostava): Support for disabling attribute deduplication for the C++
# decoder is planned in future releases.
draco_enable_feature(FEATURE
DRACO_ATTRIBUTE_INDICES_DEDUPLICATION_SUPPORTED)
draco_enable_feature(FEATURE
DRACO_ATTRIBUTE_VALUES_DEDUPLICATION_SUPPORTED)
endif()
endif()
if(DRACO_UNITY_PLUGIN)
draco_enable_feature(FEATURE "DRACO_UNITY_PLUGIN")
set(CMAKE_POSITION_INDEPENDENT_CODE ON)
endif()
if(DRACO_MAYA_PLUGIN)
draco_enable_feature(FEATURE "DRACO_MAYA_PLUGIN")
set(CMAKE_POSITION_INDEPENDENT_CODE ON)
endif()
endmacro()
# Macro that handles tracking of Draco preprocessor symbols for the purpose of
# producing draco_features.h.
#
# ~~~
# draco_enable_feature(FEATURE <feature_name> [TARGETS <target_name>])
# ~~~
#
# FEATURE is required. It should be a Draco preprocessor symbol. TARGETS is
# optional. It can be one or more draco targets.
#
# When the TARGETS argument is not present the preproc symbol is added to
# draco_features.h. When it is draco_features.h is unchanged, and
# target_compile_options() is called for each target specified.
macro(draco_enable_feature)
set(def_flags)
set(def_single_arg_opts FEATURE)
set(def_multi_arg_opts TARGETS)
cmake_parse_arguments(DEF "${def_flags}" "${def_single_arg_opts}"
"${def_multi_arg_opts}" ${ARGN})
if("${DEF_FEATURE}" STREQUAL "")
message(FATAL_ERROR "Empty FEATURE passed to draco_enable_feature().")
endif()
# Do nothing/return early if $DEF_FEATURE is already in the list.
list(FIND draco_features_list ${DEF_FEATURE} df_index)
if(NOT df_index EQUAL -1)
return()
endif()
list(LENGTH DEF_TARGETS df_targets_list_length)
if(${df_targets_list_length} EQUAL 0)
list(APPEND draco_features_list ${DEF_FEATURE})
else()
foreach(target ${DEF_TARGETS})
target_compile_definitions(${target} PRIVATE ${DEF_FEATURE})
endforeach()
endif()
endmacro()
# Function for generating draco_features.h.
function(draco_generate_features_h)
file(WRITE "${draco_features_file_name}.new"
"// GENERATED FILE -- DO NOT EDIT\n\n" "#ifndef DRACO_FEATURES_H_\n"
"#define DRACO_FEATURES_H_\n\n")
foreach(feature ${draco_features_list})
file(APPEND "${draco_features_file_name}.new" "#define ${feature}\n")
endforeach()
file(APPEND "${draco_features_file_name}.new"
"\n#endif // DRACO_FEATURES_H_")
# Will replace ${draco_features_file_name} only if the file content has
# changed. This prevents forced Draco rebuilds after CMake runs.
configure_file("${draco_features_file_name}.new"
"${draco_features_file_name}")
file(REMOVE "${draco_features_file_name}.new")
endfunction()
# Sets default options for the build and processes user controlled options to
# compute enabled features.
macro(draco_setup_options)
draco_set_default_options()
draco_set_optional_features()
endmacro()
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