# Convert a binary data file into a C++
# source file for embedding into an application binary
#
# Currently only implemented for Unix.  Requires the 'xxd'
# tool to be installed.
#
# TARGET_NAME : The name of the target to generate
#
# INPUT_DIR   : The directory containing the input binary data file
#
# INPUT_FILE  : The name of the binary data file in ${INPUT_DIR} to be converted into a C++
#               source file.  The name of the input file will be used as the basis for the
#               symbols in the generated C++ file referring to the data buffer and its length.
#
# CPP_FILE    : The path of the C++ source file to be generated.
#               See the documentation for xxd for information on
#               the structure of the generated source file.
#
function (generate_cpp_resource_file TARGET_NAME INPUT_FILE CPP_FILE)
	add_custom_command(OUTPUT ${CPP_FILE} COMMAND cd `dirname ${INPUT_FILE}` && xxd -i `basename ${INPUT_FILE}` ${CPP_FILE} DEPENDS ${INPUT_FILE})
	add_custom_target(${TARGET_NAME} ALL DEPENDS ${CPP_FILE})
endfunction()