# Tuxanci 2 - A first person shooter
# Copyright (C) 2007-2011  Tuxánci Development Team
# Copyright (C) 2025-2026  Connor Thomson
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <https://www.gnu.org/licenses/>.

foreach(_required IN_FILE OUT_C SYMBASE XXD_EXE)
    if(NOT DEFINED ${_required})
        message(FATAL_ERROR "EmbedFile.cmake: missing required -D ${_required}")
    endif()
endforeach()

execute_process(
    COMMAND "${XXD_EXE}" -i -n "${SYMBASE}" "${IN_FILE}"
    OUTPUT_VARIABLE _xxd_output
    RESULT_VARIABLE _xxd_result
    ERROR_VARIABLE _xxd_error
)
if(NOT _xxd_result EQUAL 0)
    message(FATAL_ERROR "xxd failed embedding ${IN_FILE}: ${_xxd_error}")
endif()

file(WRITE "${OUT_C}" "${_xxd_output}\n")
file(APPEND "${OUT_C}" "\nunsigned int ${SYMBASE}_size = sizeof(${SYMBASE});\n")
file(APPEND "${OUT_C}" "unsigned char *${SYMBASE}_start = ${SYMBASE};\n")
file(APPEND "${OUT_C}" "unsigned char *${SYMBASE}_end = ${SYMBASE} + sizeof(${SYMBASE});\n")