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