e151e136d6
Closes #18 Co-authored-by: Jules Pénuchot <jules@penuchot.com> See merge request oss/rotgen!50
104 lines
4 KiB
CMake
104 lines
4 KiB
CMake
##======================================================================================================================
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## ROTGEN - Runtime Overlay for Eigen
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## Copyright : CODE RECKONS
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## SPDX-License-Identifier: BSL-1.0
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##======================================================================================================================
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function(assert_integer VAR_NAME)
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if(DEFINED ${VAR_NAME} AND NOT ${${VAR_NAME}} STREQUAL "")
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if(NOT ${${VAR_NAME}} MATCHES "^[0-9]+$")
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message(FATAL_ERROR "[ROTGEN] - ${VAR_NAME} must be a non-negative integer, got '${${VAR_NAME}}'}")
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endif()
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endif()
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endfunction()
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function(check_force_dynamic_and_sizes FORCE_DYNAMIC_VAR MAX_SIZE_VAR)
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if(${FORCE_DYNAMIC_VAR})
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if(NOT ${MAX_SIZE_VAR} STREQUAL "")
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message(FATAL_ERROR "[ROTGEN] - ROTGEN_FORCE_DYNAMIC is set, so ROTGEN_MAX_SIZE must not be defined.")
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endif()
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endif()
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endfunction()
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function(infer_force_dynamic FORCE_DYNAMIC_VAR MAX_SIZE_VAR ET_VAR OUT_FORCE_DYNAMIC_INFERRED)
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set(${OUT_FORCE_DYNAMIC_INFERRED} OFF PARENT_SCOPE)
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if(${FORCE_DYNAMIC_VAR})
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if(NOT ${MAX_SIZE_VAR} STREQUAL "")
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message(FATAL_ERROR "ROTGEN_FORCE_DYNAMIC cannot be used together with ROTGEN_MAX_SIZE.")
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endif()
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if(NOT ${ET_VAR} STREQUAL "")
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message(FATAL_ERROR "ROTGEN_FORCE_DYNAMIC cannot be used together with ROTGEN_ENABLE_EXPRESSION_TEMPLATES.")
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endif()
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elseif(NOT ${MAX_SIZE_VAR} AND NOT ${ET_VAR})
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# None set, enable force_dynamic
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set(${OUT_FORCE_DYNAMIC_INFERRED} ON PARENT_SCOPE)
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set(${FORCE_DYNAMIC_VAR} ON PARENT_SCOPE) # update caller variable!
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endif()
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endfunction()
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function(build_compile_definitions FORCE_DYNAMIC_VAR MAX_SIZE_VAR ENABLE_ET OUT_DEFS)
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set(defs "")
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if(${FORCE_DYNAMIC_VAR})
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list(APPEND defs "ROTGEN_FORCE_DYNAMIC")
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else()
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if(NOT ${MAX_SIZE_VAR} STREQUAL "")
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list(APPEND defs "ROTGEN_MAX_SIZE=${${MAX_SIZE_VAR}}")
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endif()
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if(${ENABLE_ET})
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list(APPEND defs "ROTGEN_ENABLE_EXPRESSION_TEMPLATES")
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endif()
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endif()
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set(${OUT_DEFS} "${defs}" PARENT_SCOPE)
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endfunction()
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function(print_configuration_summary FORCE_DYNAMIC_VAR FORCE_CONFIG_REASON MAX_SIZE_VAR COMPILE_DEFS)
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message(STATUS "==================== Rotgen Configuration Summary ====================")
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if(${FORCE_DYNAMIC_VAR})
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message(STATUS " Configuration mode: DYNAMIC")
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if(${FORCE_CONFIG_REASON})
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message(STATUS " Reason : No fixed size options were provided")
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endif()
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else()
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message(STATUS " Configuration mode: FIXED SIZE")
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message(STATUS " Expression Templates: ${ROTGEN_ENABLE_EXPRESSION_TEMPLATES}")
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endif()
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set(PREPROCESSOR_FLAGS "")
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foreach(def IN LISTS COMPILE_DEFS)
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string(APPEND PREPROCESSOR_FLAGS " -D${def}")
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endforeach()
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message(STATUS " Preprocessor flags: ${PREPROCESSOR_FLAGS}")
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message(STATUS "======================================================================")
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endfunction()
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function(handle_option OUT_DEFS)
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# Early-out if disabling expression templates
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if(NOT DEFINED ROTGEN_ENABLE_EXPRESSION_TEMPLATES)
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set(ROTGEN_DISABLE_EXPRESSION_TEMPLATES OFF)
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endif()
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# Defaults for other options
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if(NOT DEFINED ROTGEN_FORCE_DYNAMIC)
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set(ROTGEN_FORCE_DYNAMIC OFF)
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endif()
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if(NOT DEFINED ROTGEN_MAX_SIZE)
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set(ROTGEN_MAX_SIZE "")
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endif()
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assert_integer("ROTGEN_MAX_SIZE")
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check_force_dynamic_and_sizes("ROTGEN_FORCE_DYNAMIC" "ROTGEN_MAX_SIZE")
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infer_force_dynamic ( "ROTGEN_FORCE_DYNAMIC" "ROTGEN_MAX_SIZE"
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"ROTGEN_ENABLE_EXPRESSION_TEMPLATES" _force_dynamic_inferred
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)
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build_compile_definitions("ROTGEN_FORCE_DYNAMIC" "ROTGEN_MAX_SIZE" "ROTGEN_ENABLE_EXPRESSION_TEMPLATES" defs)
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print_configuration_summary("ROTGEN_FORCE_DYNAMIC" "_force_dynamic_inferred" "ROTGEN_MAX_SIZE" "${defs}")
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set(${OUT_DEFS} "${defs}" PARENT_SCOPE)
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set(ROTGEN_FORCE_DYNAMIC ${ROTGEN_FORCE_DYNAMIC} PARENT_SCOPE)
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set(ROTGEN_MAX_SIZE ${ROTGEN_MAX_SIZE} PARENT_SCOPE)
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set(ROTGEN_ENABLE_EXPRESSION_TEMPLATES ${ROTGEN_ENABLE_EXPRESSION_TEMPLATES} PARENT_SCOPE)
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endfunction()
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