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cmake: add an ability to make a WebAssembly build with emscripten

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Sebastian Krzyszkowiak 2018-07-06 22:07:13 +02:00
parent 314588640e
commit 4f64b83e01
1 changed files with 23 additions and 14 deletions
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27
cmake/libsuperderpy.cmake
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@ -66,7 +66,21 @@ if (NOT LIBSUPERDERPY_CONFIG_INCLUDED)
if(EMSCRIPTEN) if(EMSCRIPTEN)
set(CMAKE_EXECUTABLE_SUFFIX ".bc") set(CMAKE_EXECUTABLE_SUFFIX ".bc")
set(CMAKE_SHARED_LIBRARY_SUFFIX ".so")
set(CMAKE_MODULE_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -s SIDE_MODULE=1")
set(EMSCRIPTEN_USE_FLAGS -s USE_SDL=2 -s USE_FREETYPE=1 -s USE_LIBPNG=1 -s USE_ZLIB=1 -s USE_OGG=1 -s USE_VORBIS=1 -s FULL_ES2=1 -s WASM=0) set(EMSCRIPTEN_USE_FLAGS -s USE_SDL=2 -s USE_FREETYPE=1 -s USE_LIBPNG=1 -s USE_ZLIB=1 -s USE_OGG=1 -s USE_VORBIS=1 -s FULL_ES2=1 -s WASM=0)
set(LIBSUPERDERPY_EMSCRIPTEN_MODE "asm.js" CACHE STRING "Emscripten compilation mode (JavaScript or WebAssembly)")
set_property(CACHE LIBSUPERDERPY_EMSCRIPTEN_MODE PROPERTY STRINGS "asm.js;wasm")
if("${LIBSUPERDERPY_EMSCRIPTEN_MODE}" STREQUAL "wasm")
# https://github.com/kripken/emscripten/issues/5436
set(CMAKE_MODULE_LINKER_FLAGS "${CMAKE_MODULE_LINKER_FLAGS} -s WASM=1")
set(EMSCRIPTEN_USE_FLAGS ${EMSCRIPTEN_USE_FLAGS} -s WASM=1)
set(CMAKE_SHARED_MODULE_SUFFIX ".wasm")
else()
set(CMAKE_MODULE_LINKER_FLAGS "${CMAKE_MODULE_LINKER_FLAGS} -s WASM=0")
set(EMSCRIPTEN_USE_FLAGS ${EMSCRIPTEN_USE_FLAGS} -s WASM=0)
set(CMAKE_SHARED_MODULE_SUFFIX ".js")
endif()
set(LIBSUPERDERPY_USE_WEBGL2 "no" CACHE STRING "Use WebGL 2 context") set(LIBSUPERDERPY_USE_WEBGL2 "no" CACHE STRING "Use WebGL 2 context")
if(LIBSUPERDERPY_USE_WEBGL2) if(LIBSUPERDERPY_USE_WEBGL2)
set(EMSCRIPTEN_USE_FLAGS ${EMSCRIPTEN_USE_FLAGS} -s USE_WEBGL2=1) set(EMSCRIPTEN_USE_FLAGS ${EMSCRIPTEN_USE_FLAGS} -s USE_WEBGL2=1)
@ -113,7 +127,7 @@ endif()
MACRO(register_gamestate name sources) MACRO(register_gamestate name sources)
add_library("libsuperderpy-${LIBSUPERDERPY_GAMENAME}-${name}" SHARED ${sources}) add_library("libsuperderpy-${LIBSUPERDERPY_GAMENAME}-${name}" MODULE ${sources})
set_target_properties("libsuperderpy-${LIBSUPERDERPY_GAMENAME}-${name}" PROPERTIES PREFIX "") set_target_properties("libsuperderpy-${LIBSUPERDERPY_GAMENAME}-${name}" PROPERTIES PREFIX "")
@ -121,7 +135,7 @@ endif()
if (TARGET libsuperderpy-${LIBSUPERDERPY_GAMENAME}) if (TARGET libsuperderpy-${LIBSUPERDERPY_GAMENAME})
target_link_libraries("libsuperderpy-${LIBSUPERDERPY_GAMENAME}-${name}" libsuperderpy-${LIBSUPERDERPY_GAMENAME}) target_link_libraries("libsuperderpy-${LIBSUPERDERPY_GAMENAME}-${name}" libsuperderpy-${LIBSUPERDERPY_GAMENAME})
endif() endif(TARGET libsuperderpy-${LIBSUPERDERPY_GAMENAME})
install(TARGETS "libsuperderpy-${LIBSUPERDERPY_GAMENAME}-${name}" DESTINATION ${LIB_INSTALL_DIR}) install(TARGETS "libsuperderpy-${LIBSUPERDERPY_GAMENAME}-${name}" DESTINATION ${LIB_INSTALL_DIR})
@ -134,12 +148,7 @@ endif()
string(REPLACE " " ";" CFLAGS_L ${CMAKE_C_FLAGS}) string(REPLACE " " ";" CFLAGS_L ${CMAKE_C_FLAGS})
set(CFLAGS_LIST ${CFLAGS_L} ${${CFLAGS}}) set(CFLAGS_LIST ${CFLAGS_L} ${${CFLAGS}})
add_custom_command(TARGET "libsuperderpy-${LIBSUPERDERPY_GAMENAME}-${name}" POST_BUILD install(FILES "${CMAKE_BINARY_DIR}/src/gamestates/libsuperderpy-${LIBSUPERDERPY_GAMENAME}-${name}${CMAKE_SHARED_MODULE_SUFFIX}" DESTINATION ${CMAKE_INSTALL_PREFIX}/${LIBSUPERDERPY_GAMENAME}/gamestates)
WORKING_DIRECTORY "${CMAKE_BINARY_DIR}/src/gamestates"
COMMAND "${CMAKE_C_COMPILER}" ${CFLAGS_LIST} libsuperderpy-${LIBSUPERDERPY_GAMENAME}-${name}.so -s SIDE_MODULE=1 -s WASM=0 -o libsuperderpy-${LIBSUPERDERPY_GAMENAME}-${name}.js
VERBATIM
)
install(FILES "${CMAKE_BINARY_DIR}/src/gamestates/libsuperderpy-${LIBSUPERDERPY_GAMENAME}-${name}.js" DESTINATION ${CMAKE_INSTALL_PREFIX}/${LIBSUPERDERPY_GAMENAME}/gamestates)
endif() endif()
ENDMACRO() ENDMACRO()
@ -228,7 +237,7 @@ endif()
add_custom_target(${LIBSUPERDERPY_GAMENAME}_js add_custom_target(${LIBSUPERDERPY_GAMENAME}_js
DEPENDS ${LIBSUPERDERPY_GAMENAME}_install ${LIBSUPERDERPY_GAMENAME}_flac_to_ogg DEPENDS ${LIBSUPERDERPY_GAMENAME}_install ${LIBSUPERDERPY_GAMENAME}_flac_to_ogg
WORKING_DIRECTORY "${CMAKE_INSTALL_PREFIX}/${LIBSUPERDERPY_GAMENAME}" WORKING_DIRECTORY "${CMAKE_INSTALL_PREFIX}/${LIBSUPERDERPY_GAMENAME}"
COMMAND "${CMAKE_C_COMPILER}" ${CFLAGS_LIST} ../${LIBSUPERDERPY_GAMENAME}.bc ../libsuperderpy.so ../libsuperderpy-${LIBSUPERDERPY_GAMENAME}.so ${ALLEGRO_LIBRARY_PATH} ${EMSCRIPTEN_USE_FLAGS} -s MAIN_MODULE=1 -s TOTAL_MEMORY=${EMSCRIPTEN_TOTAL_MEMORY_BYTES} -o ${LIBSUPERDERPY_GAMENAME}.html --preload-file data --preload-file gamestates@/ COMMAND "${CMAKE_C_COMPILER}" ${CFLAGS_LIST} ../${LIBSUPERDERPY_GAMENAME}${CMAKE_EXECUTABLE_SUFFIX} ../libsuperderpy${CMAKE_SHARED_LIBRARY_SUFFIX} ../libsuperderpy-${LIBSUPERDERPY_GAMENAME}${CMAKE_SHARED_LIBRARY_SUFFIX} ${ALLEGRO_LIBRARY_PATH} ${EMSCRIPTEN_USE_FLAGS} -s MAIN_MODULE=1 -s TOTAL_MEMORY=${EMSCRIPTEN_TOTAL_MEMORY_BYTES} -o ${LIBSUPERDERPY_GAMENAME}.html --preload-file data --preload-file gamestates@/
COMMAND rm -rf data gamestates COMMAND rm -rf data gamestates
VERBATIM VERBATIM
) )