64 lines
2.4 KiB
CMake
64 lines
2.4 KiB
CMake
# Function to turn an OpenCL source file into a C string within a source file.
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# xxd uses its input's filename to name the string and its length, so we
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# need to move them to a name that depends only on the path output, not its
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# input. Otherwise, builds in different relative locations would put the
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# source into different variable names, and everything would fall over.
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# The actual name will be filename (.s replaced with underscores), and length
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# name_len.
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#
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# Usage example:
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#
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# set(KERNELS a.cl b/c.cl)
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# resource_to_cxx_source(
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# SOURCES ${KERNELS}
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# VARNAME OUTPUTS
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# )
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# add_executable(foo ${OUTPUTS})
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#
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# The namespace they are placed in is taken from filename.namespace.
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#
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# For example, if the input file is kernel.cl, the two variables will be
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# unsigned char ns::kernel_cl[];
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# unsigned int ns::kernel_cl_len;
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#
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# where ns is the contents of kernel.cl.namespace.
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include(CMakeParseArguments)
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set(BIN2CPP_PROGRAM "bin2cpp")
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function(CODE_TO_H)
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cmake_parse_arguments(RTCS "" "VARNAME;EXTENSION;OUTPUT_DIR;TARGETS;NAMESPACE;EOF" "SOURCES" ${ARGN})
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set(_output_files "")
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foreach(_input_file ${RTCS_SOURCES})
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get_filename_component(_path "${_input_file}" PATH)
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get_filename_component(_name "${_input_file}" NAME)
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get_filename_component(var_name "${_input_file}" NAME)
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get_filename_component(_name_we "${_input_file}" NAME_WE)
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set(_namespace "${RTCS_NAMESPACE}")
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string(REPLACE "." "_" var_name ${var_name})
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set(_output_path "${CMAKE_CURRENT_BINARY_DIR}/${RTCS_OUTPUT_DIR}")
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set(_output_file "${_output_path}/${_name_we}.${RTCS_EXTENSION}")
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ADD_CUSTOM_COMMAND(
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OUTPUT ${_output_file}
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DEPENDS ${_input_file} ${BIN2CPP_PROGRAM}
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COMMAND ${CMAKE_COMMAND} -E make_directory "${_output_path}"
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COMMAND ${CMAKE_COMMAND} -E echo "\\#include \\<${_path}/${_name_we}.hpp\\>" >>"${_output_file}"
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COMMAND ${BIN2CPP_PROGRAM} --file ${_name} --namespace ${_namespace} --output ${_output_file} --name ${var_name} --eof ${RTCS_EOF}
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WORKING_DIRECTORY "${_path}"
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COMMENT "Compiling ${_input_file} to C++ source"
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)
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list(APPEND _output_files ${_output_file})
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endforeach()
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ADD_CUSTOM_TARGET(${RTCS_NAMESPACE}_bin_target DEPENDS ${_output_files})
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set("${RTCS_VARNAME}" ${_output_files} PARENT_SCOPE)
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set("${RTCS_TARGETS}" ${RTCS_NAMESPACE}_bin_target PARENT_SCOPE)
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endfunction(CL_KERNEL_TO_H)
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