ref: 76da6ec140cbbdac6136469ce50aab40e218f398
dir: /cmake/platforms/emscripten.cmake/
set(platform_common_sources emcc.c) set(platform_gui_libs) set(platform_libs) set(CMAKE_EXECUTABLE_SUFFIX ".js") set(WASM ON CACHE BOOL "Compile to WebAssembly rather than plain JavaScript") # The minimal versions here are the ones that Puzzles' own JavaScript # is written for. For most browsers, that's the earliest version with # WebAssembly support according to https://caniuse.com/wasm. For # Firefox we go back to Firefox 48 because that's what KaiOS 2.5 is # based on. set(MIN_FIREFOX_VERSION 48 CACHE STRING "Oldest major version of Firefox to target") set(MIN_SAFARI_VERSION 110000 CACHE STRING "Oldest version of desktop Safari to target (XXYYZZ for version XX.YY.ZZ)") set(MIN_EDGE_VERSION 16 CACHE STRING "Oldest version of (non-Chromium-based) Edge to target") set(MIN_CHROME_VERSION 57 CACHE STRING "Oldest version of Chrome to target") find_program(HALIBUT halibut) if(NOT HALIBUT) message(WARNING "HTML documentation cannot be built (did not find halibut)") endif() set(emcc_export_list # Event handlers for mouse and keyboard input _mouseup _mousedown _mousemove _key # Callback when the program activates timing _timer_callback # Callback from button presses in the UI outside the canvas _command # Text-formatting for copying to clipboard _get_text_format _free_text_format # Game-saving and game-loading functions _get_save_file _free_save_file _load_game # Callbacks to return values from dialog boxes _dlg_return_sval _dlg_return_ival # Callbacks when the resizing controls are used _resize_puzzle _restore_puzzle_size # Callback when device pixel ratio changes _rescale_puzzle # Callback for loading user preferences _prefs_load_callback # Functions for allocating and freeing C memory _malloc _free # Main program, run at initialisation time _main) list(TRANSFORM emcc_export_list PREPEND \") list(TRANSFORM emcc_export_list APPEND \") string(JOIN "," emcc_export_string ${emcc_export_list}) set(CMAKE_C_LINK_FLAGS "\ -s ALLOW_MEMORY_GROWTH=1 \ -s ENVIRONMENT=web \ -s EXPORTED_FUNCTIONS='[${emcc_export_string}]' \ -s EXPORTED_RUNTIME_METHODS='[cwrap]' \ -s MIN_FIREFOX_VERSION=${MIN_FIREFOX_VERSION} \ -s MIN_SAFARI_VERSION=${MIN_SAFARI_VERSION} \ -s MIN_EDGE_VERSION=${MIN_EDGE_VERSION} \ -s MIN_CHROME_VERSION=${MIN_CHROME_VERSION} \ -s MIN_NODE_VERSION=0x7FFFFFFF \ -s STRICT_JS=1") if(WASM) set(CMAKE_C_LINK_FLAGS "${CMAKE_C_LINK_FLAGS} -s WASM=1") else() set(CMAKE_C_LINK_FLAGS "${CMAKE_C_LINK_FLAGS} -s WASM=0") endif() set(build_cli_programs FALSE) set(build_gui_programs FALSE) function(get_platform_puzzle_extra_source_files OUTVAR NAME) set(${OUTVAR} PARENT_SCOPE) endfunction() function(set_platform_gui_target_properties TARGET) endfunction() function(set_platform_puzzle_target_properties NAME TARGET) em_link_pre_js(${TARGET} ${CMAKE_SOURCE_DIR}/emccpre.js) em_link_js_library(${TARGET} ${CMAKE_SOURCE_DIR}/emcclib.js) endfunction() function(build_platform_extras) if(HALIBUT) set(help_dir ${CMAKE_CURRENT_BINARY_DIR}/help) add_custom_command(OUTPUT ${help_dir}/en COMMAND ${CMAKE_COMMAND} -E make_directory ${help_dir}/en) add_custom_command(OUTPUT ${help_dir}/en/index.html COMMAND ${HALIBUT} --html -Chtml-template-fragment:%k ${CMAKE_CURRENT_SOURCE_DIR}/puzzles.but ${CMAKE_CURRENT_SOURCE_DIR}/emcccopy.but DEPENDS ${help_dir}/en ${CMAKE_CURRENT_SOURCE_DIR}/puzzles.but ${CMAKE_CURRENT_SOURCE_DIR}/emcccopy.but WORKING_DIRECTORY ${help_dir}/en) add_custom_target(kaios_help ALL DEPENDS ${help_dir}/en/index.html) endif() # This is probably not the right way to set the destination. set(CMAKE_INSTALL_PREFIX ${CMAKE_CURRENT_BINARY_DIR} CACHE PATH "Installation path" FORCE) add_custom_target(kaios-extras ALL) foreach(name ${puzzle_names}) add_custom_command( OUTPUT ${name}-manifest.webapp COMMAND ${PERL_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/kaios/manifest.pl "${name}" "${displayname_${name}}" "${description_${name}}" "${objective_${name}}" > "${name}-manifest.webapp" VERBATIM DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/kaios/manifest.pl) file(MAKE_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/kaios) add_custom_command( OUTPUT ${name}-kaios.html COMMAND ${PERL_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/kaios/apppage.pl "${name}" "${displayname_${name}}" > "${name}-kaios.html" VERBATIM DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/kaios/apppage.pl) add_custom_target(${name}-kaios-extras DEPENDS ${name}-manifest.webapp ${name}-kaios.html) add_dependencies(kaios-extras ${name}-kaios-extras) install(TARGETS ${name} DESTINATION kaios/${name}) # Release builds generate an initial memory image alongside the # JavaScript, but CMake doesn't seem to know about it to install # it. install(FILES $<TARGET_FILE:${name}>.mem OPTIONAL DESTINATION kaios/${name}) install(FILES ${ICON_DIR}/${name}-56kai.png ${ICON_DIR}/${name}-112kai.png DESTINATION kaios/${name} OPTIONAL) install(FILES ${CMAKE_CURRENT_BINARY_DIR}/${name}-kaios.html RENAME ${name}.html DESTINATION kaios/${name}) install(FILES ${CMAKE_CURRENT_BINARY_DIR}/${name}-manifest.webapp RENAME manifest.webapp DESTINATION kaios/${name}) install(FILES ${CMAKE_CURRENT_SOURCE_DIR}/kaios/kaiads-glue.js DESTINATION kaios/${name}) install(DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/help OPTIONAL DESTINATION kaios/${name}) endforeach() endfunction()