OpenTTD-patches/cmake/CreateGrfCommand.cmake

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CMake
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# Macro which contains all bits and pieces to create a single grf file based
# on NFO and PNG files.
#
# create_grf_command()
#
function(create_grf_command)
set(EXTRA_PNG_SOURCE_FILES ${ARGV})
get_filename_component(GRF_SOURCE_FOLDER_NAME "${CMAKE_CURRENT_SOURCE_DIR}" NAME)
get_filename_component(GRF_BINARY_FILE ${CMAKE_CURRENT_SOURCE_DIR}/../${GRF_SOURCE_FOLDER_NAME}.grf ABSOLUTE)
file(GLOB_RECURSE GRF_PNG_SOURCE_FILES ${CMAKE_CURRENT_SOURCE_DIR}/*.png)
file(GLOB_RECURSE GRF_NFO_SOURCE_FILES ${CMAKE_CURRENT_SOURCE_DIR}/*.nfo)
set(GRF_PNG_SOURCE_FILES ${GRF_PNG_SOURCE_FILES} ${EXTRA_PNG_SOURCE_FILES})
# Copy over all the PNG files to the correct folder
foreach(GRF_PNG_SOURCE_FILE IN LISTS GRF_PNG_SOURCE_FILES)
get_filename_component(GRF_PNG_SOURCE_FILE_NAME "${GRF_PNG_SOURCE_FILE}" NAME)
set(GRF_PNG_BINARY_FILE "${CMAKE_CURRENT_BINARY_DIR}/sprites/${GRF_PNG_SOURCE_FILE_NAME}")
add_custom_command(OUTPUT ${GRF_PNG_BINARY_FILE}
COMMAND ${CMAKE_COMMAND} -E copy
${GRF_PNG_SOURCE_FILE}
${GRF_PNG_BINARY_FILE}
MAIN_DEPENDENCY ${GRF_PNG_SOURCE_FILE}
COMMENT "Copying ${GRF_PNG_SOURCE_FILE_NAME} sprite file"
)
list(APPEND GRF_PNG_BINARY_FILES ${GRF_PNG_BINARY_FILE})
endforeach()
add_custom_command(OUTPUT ${GRF_BINARY_FILE}
COMMAND ${CMAKE_COMMAND}
-DGRF_SOURCE_FOLDER=${CMAKE_CURRENT_SOURCE_DIR}
-DGRF_BINARY_FILE=${GRF_BINARY_FILE}
-DNFORENUM_EXECUTABLE=${NFORENUM_EXECUTABLE}
-DGRFCODEC_EXECUTABLE=${GRFCODEC_EXECUTABLE}
-P ${CMAKE_SOURCE_DIR}/cmake/scripts/CreateGRF.cmake
MAIN_DEPENDENCY ${GRF_NFO_SOURCE_FILES}
DEPENDS ${GRF_PNG_BINARY_FILES}
${CMAKE_SOURCE_DIR}/cmake/scripts/CreateGRF.cmake
WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
COMMENT "Generating ${GRF_SOURCE_FOLDER_NAME}.grf"
)
# For conviance, if you want to only test building the GRF
add_custom_target(${GRF_SOURCE_FOLDER_NAME}.grf
DEPENDS
${GRF_BINARY_FILE}
)
endfunction()