looper/CMakeLists.txt

cmake_minimum_required(VERSION 3.22)
project(looper VERSION 1.0.0 LANGUAGES C CXX)
option(SHARED_LIB "Enables building as a shared library." OFF)
if("${CMAKE_SYSTEM_NAME}" STREQUAL "Emscripten")
	set(EMSCRIPTEN ON)
	message("Building for WASM.")
endif()
option(TESTS "Enables unit testing" OFF)
find_package(Threads)
list(APPEND CMAKE_MODULE_PATH ${CMAKE_SOURCE_DIR}/cmake)
include(SanitizerBuildTypes)
sanitizer_build_types(ASAN AddressSanitizer LSAN LeakSanitizer MSAN MemorySanitizer TSAN ThreadSanitizer UBSAN UndefinedBehaviorSanitizer)
set(CMAKE_CXX_STANDARD 20)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
set(SDL_MIXER_X_STATIC ON CACHE BOOL "")
set(SDL_MIXER_X_SHARED OFF CACHE BOOL "")
set(DOWNLOAD_AUDIO_CODECS_DEPENDENCY OFF CACHE BOOL "")
set(AUDIO_CODECS_BUILD_LOCAL_SDL2 OFF CACHE BOOL "" FORCE)
set(MIXERX_LGPL ON CACHE BOOL "" FORCE)
set(USE_MIDI ON CACHE BOOL "" FORCE)
set(USE_MIDI_NATIVE_ALT OFF CACHE BOOL "" FORCE)
set(USE_MIDI_NATIVE OFF CACHE BOOL "" FORCE)
set(USE_MIDI_TIMIDITY OFF CACHE BOOL "" FORCE)
set(USE_MIDI_FLUIDLITE OFF CACHE BOOL "" FORCE)
set(USE_MIDI_OPNMIDI OFF CACHE BOOL "" FORCE)
set(USE_MIDI_ADLMIDI OFF CACHE BOOL "" FORCE)
set(USE_MIDI_FLUIDSYNTH ON CACHE BOOL "" FORCE)
set(CMAKE_C_STANDARD 99)
set(CMAKE_C_STANDARD_REQUIRED ON)
set(BUILD_FB2K OFF CACHE BOOL "" FORCE)
set(BUILD_CLI OFF CACHE BOOL "" FORCE)
set(BUILD_WINAMP OFF CACHE BOOL "" FORCE)
set(BUILD_XMPLAY OFF CACHE BOOL "" FORCE)
set(BUILD_AUDACIOUS OFF CACHE BOOL "" FORCE)
set(BUILD_V123 OFF CACHE BOOL "" FORCE)
set(JSONCPP_WITH_TESTS OFF CACHE BOOL "" FORCE)
set(BUILD_STATIC_LIBS ON CACHE BOOL "" FORCE)
set(BUILD_SHARED_LIBS OFF CACHE BOOL "" FORCE)
set(JSONCPP_WITH_PKGCONFIG_SUPPORT OFF CACHE BOOL "" FORCE)
set(JSONCPP_WITH_CMAKE_PACKAGE OFF CACHE BOOL "" FORCE)
option(ENABLE_DBUS "Enables DBus support" ON)
option(USE_PORTALS "Enables libportal" ON)
option(BUILD_LIBFMT "Builds libfmt" OFF)
if (DEFINED EMSCRIPTEN)
	option(FOR_WASMER "Enables support for wasmer" OFF)
	set(BUILD_STATIC ON CACHE BOOL "" FORCE)
	set(ENABLE_DBUS OFF CACHE BOOL "" FORCE)
	set(DOWNLOAD_AUDIO_CODECS_DEPENDENCY ON CACHE BOOL "" FORCE)
	set(SDL_MIXER_X_SHARED OFF CACHE BOOL "" FORCE)
	set(SDL_MIXER_X_STATIC ON CACHE BOOL "" FORCE)
	set(USE_OGG_VORBIS_STB ON CACHE BOOL "" FORCE)
	set(USE_OPUS OFF CACHE BOOL "" FORCE)
	set(USE_MODPLUG OFF CACHE BOOL "" FORCE)
	set(USE_GME OFF CACHE BOOL "" FORCE)
	set(USE_WAVPACK OFF CACHE BOOL "" FORCE)
	set(USE_XMP OFF CACHE BOOL "" FORCE)
	set(USE_MIDI_EDMIDI OFF CACHE BOOL "" FORCE)
	set(USE_PORTALS OFF CACHE BOOL "" FORCE)
	set(USE_SYSTEM_SDL2 ON CACHE BOOL "" FORCE)
	set(USE_MPEG OFF CACHE BOOL "" FORCE)
	set(USE_CELT OFF CACHE BOOL "" FORCE)
	set(USE_ATRAC9 OFF CACHE BOOL "" FORCE)
	set(USE_SPEEX OFF CACHE BOOL "" FORCE)
	set(BUILD_PROTOC OFF CACHE BOOL "" FORCE)
	#	set(BUILD_LIBUPB OFF CACHE BOOL "" FORCE)
	set(USE_G719 OFF CACHE BOOL "" FORCE)
	set(EXTRA_FLAGS "-sUSE_VORBIS -sUSE_MPG123=1 -sUSE_ZLIB -sUSE_OGG=1 -sUSE_MODPLUG=1 -sUSE_SDL=2 -sUSE_SDL_IMAGE=2 -sNO_DISABLE_EXCEPTION_CATCHING")
	set(DEBUG_INFO ${CMAKE_BUILD_TYPE} STREQUAL Debug OR ${CMAKE_BUILD_TYPE} STREQUAL RelWithDebInfo)
	set(RELASE_OPTS ${CMAKE_BUILD_TYPE} STREQUAL Release OR ${CMAKE_BUILD_TYPE} STREQUAL RelWithDebInfo)
	set(PROFILE_ENABLED ${CMAKE_BUILD_TYPE} STREQUAL RelWithDebInfo)
	set(EXTRA_LINKER_FLAGS "-sALLOW_MEMORY_GROWTH=1  -sEXPORTED_RUNTIME_METHODS=UTF8ToString,stringToUTF8,lengthBytesUTF8 -sEXPORTED_FUNCTIONS=_malloc,_main,_memset,_write_log,_write_logln")
	if (NOT FOR_WASMER)
		set(EXTRA_LINKER_FLAGS "${EXTRA_LINKER_FLAGS} -sASYNCIFY_IMPORTS=read_file,read_storage,write_storage,remove_storage,find_keys")
		set(EXTRA_FLAGS "${EXTRA_FLAGS}  --shell-file=${CMAKE_CURRENT_SOURCE_DIR}/web/shell.html --js-library=${CMAKE_CURRENT_SOURCE_DIR}/web/api.js")
	endif()
	set(OPENMP OFF CACHE BOOL "" FORCE)
	set(SOUNDSTRETCH OFF CACHE BOOL "" FORCE)
	set(SOUNDTOUCH_DLL OFF CACHE BOOL "" FORCE)
	if(DEBUG_INFO)
		option(STACK_OVERFLOW_CHECK "Enables extra stack overflow checks" OFF)
		if(${STACK_OVERFLOW_CHECK})
			set(EXTRA_LINKER_FLAGS "${EXTRA_LINKER_FLAGS} -sSTACK_OVERFLOW_CHECK=2")
		endif()
		set(EXTRA_FLAGS "${EXTRA_FLAGS} -g -gsource-map")
		set(EXTRA_LINKER_FLAGS "${EXTRA_LINKER_FLAGS} --emit-symbol-map -sASSERTIONS=1")
	endif()
	if(RELEASE_OPTS)
		set(EXTRA_FLAGS "${EXTRA_FLAGS} -flto")
		set(EXTRA_LINKER_FLAGS "${EXTRA_LINKER_FLAGS} --closure 1")
	endif()
	if(PROFILE_ENABLED)
		set(EXTRA_LINKER_FLAGS "${EXTRA_LINKER_FLAGS} --profiling --profiling-funcs")
	endif()
	set(CMAKE_FIND_ROOT_PATH "${CMAKE_CURRENT_SOURCE_DIR}/web/cmake" ${CMAKE_FIND_ROOT_PATH})
	set(SDL2_DIR ${CMAKE_CURRENT_SOURCE_DIR}/web/cmake)
	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${EXTRA_FLAGS}")
	set(EXTRA_LINKER_FLAGS "${EXTRA_LINKER_FLAGS} ${EXTRA_FLAGS}")
	set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${EXTRA_LINKER_FLAGS}")
else()
	set(BUILD_STATIC OFF CACHE BOOL "")
endif()
option(BUILD_SDL "Enables built-in SDL" OFF)
option(BUILD_SDL_IMAGE "Enables built-in SDL_image" ${BUILD_SDL})
if(DEFINED ANDROID_NDK)
	set(USE_SYSTEM_SDL2 ON CACHE BOOL "" FORCE)
	set(AUDIOCODECS_BUILD_TIMIDITYSDL OFF CACHE BOOL "" FORCE)
	set(AUDIOCODECS_BUILD_OPUS OFF CACHE BOOL "" FORCE)
	set(USE_OGG_VORBIS_STB ON CACHE BOOL "" FORCE)
	set(AUDIOCODECS_BUILD_WAVPACK OFF CACHE BOOL "" FORCE)
	set(USE_WAVPACK OFF CACHE BOOL "" FORCE)
	set(USE_MODPLUG OFF CACHE BOOL "" FORCE)
	set(USE_XMP OFF CACHE BOOL "" FORCE)
	set(USE_GME OFF CACHE BOOL "" FORCE)
	set(USE_MIDI_EDMIDI OFF CACHE BOOL "" FORCE)
	set(USE_OPUS OFF CACHE BOOL "" FORCE)
	set(USE_MPEG OFF CACHE BOOL "" FORCE)
	set(USE_CELT OFF CACHE BOOL "" FORCE)
	set(USE_ATRAC9 OFF CACHE BOOL "" FORCE)
	set(USE_SPEEX OFF CACHE BOOL "" FORCE)
	set(USE_G719 OFF CACHE BOOL "" FORCE)
	set(USE_VORBIS OFF CACHE BOOL "" FORCE)
endif()
if (BUILD_SDL)
	set(SDL_SHARED OFF CACHE BOOL "" FORCE)
	set(SDL_STATIC ON CACHE BOOL "" FORCE)
	set(SDL_TEST OFF CACHE BOOL "" FORCE)
	set(USE_SYSTEM_SDL2 ON CACHE BOOL "" FORCE)
	set(SDL_MIXER_X_STATIC ON CACHE BOOL "" FORCE)
	add_subdirectory(${CMAKE_SOURCE_DIR}/subprojects/SDL)
	install(TARGETS SDL2-static SDL2main EXPORT SDL_EXPORTS)
	install(EXPORT SDL_EXPORTS DESTINATION ${CMAKE_CURRENT_BINARY_DIR})
	export(TARGETS SDL2-static sdl-build-options SDL2main FILE ${CMAKE_CURRENT_BINARY_DIR}/SDL2Config.cmake NAMESPACE SDL2)
	set(SDL2_DIR ${CMAKE_CURRENT_SOURCE_DIR}/cmake/built_sdl)
endif()
if (BUILD_SDL_IMAGE)
	set(BUILD_SHARED_LIBS OFF CACHE BOOL "" FORCE)
	set(SDL2IMAGE_SAMPLES OFF CACHE BOOL "" FORCE)
	set(SDL2IMAGE_TESTS OFF CACHE BOOL ""  FORCE)
	add_subdirectory(${CMAKE_SOURCE_DIR}/subprojects/SDL_image)
	set(SDL2_image_DIR ${CMAKE_CURRENT_SOURCE_DIR}/cmake/built_sdl_image)
endif()
find_package(PkgConfig)
#add_subdirectory(subprojects/jsoncpp)

include(GNUInstallDirs)
add_subdirectory(subprojects/SDL-Mixer-X)
add_subdirectory(subprojects/vgmstream)
if (DEFINED EMSCRIPTEN)
	set(EXTRA_LIBS )
else()
	set(EXTRA_LIBS libvgmstream_shared)
endif()
if(SDL_MIXER_X_STATIC)
	set(SDL_MIXER_X_TARGET SDL2_mixer_ext_Static)
else()
	set(SDL_MIXER_X_TARGET SDL2_mixer_ext)
	set(EXTRA_LIBS ${EXTRA_LIBS} ${SDL_MIXER_X_TARGET})
endif()
add_custom_target(looper_assets COMMAND ${CMAKE_CURRENT_SOURCE_DIR}/assets/update_assets.py WORKING_DIRECTORY ${CMAKE_SOURCE_DIR})
find_package(Git)
if (Git_FOUND)
	execute_process(COMMAND ./version.sh OUTPUT_VARIABLE TAG WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR})
	message("" ${TAG})
else()
	set(TAG "unknown")
endif()
if(CMAKE_BUILD_TYPE STREQUAL "Debug")
	set(DEBUG ON)
endif()

set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} ${CMAKE_CURRENT_SOURCE_DIR}/cmake)
include(log)
#execute_process(COMMAND ${CMAKE_CURRENT_SOURCE_DIR}/meson2cmake_cfg.py ${CMAKE_CURRENT_SOURCE_DIR}/config.meson.h.in ${CMAKE_CURRENT_SOURCE_DIR}/config.cmake.h.in)
set(DEBUG_MODE_VALUE ${DEBUG})
configure_file(config.cmake.h.in config.h)
if (BUILD_FMT)
	add_subdirectory(subprojects/fmt)
else()
	find_package(fmt)
endif()
macro(target_pkgconfig)
	push_fnstack("target_pkgconfig")
	cmake_parse_arguments(PARSED_ARGS "OPTIONAL;PRIVATE;PUBLIC;INTERFACE" "PREFIX" "TARGETS;LIBRARIES" ${ARGN})
	if (NOT ${PARSED_ARGS_PREFIX})
		warning(MESSAGE "No prefix specified for reading thie PKGConfig variable to. Attempting to guess it from the library specification...")
		if (NOT ${PARSED_ARGS_LIBRARIES})
			fatal(MESSAGE "... But it turns out no library specification was specified. Giving up.")
		else()
			set(PARSED_ARGS_PREFIX ${PARSED_ARGS_LIBRARIES})
		endif()
	else()
		if(NOT ${PARSED_ARGS_NAME})
			warning(MESSAGE "No library name was specified. Assuming it is the same as the prefix.")
			set(PARSED_ARGS_LIBSPEC ${PARSED_ARGS_LIBRARIES})
		endif()
	endif()
	pkg_check_modules(${PARSED_ARGS_PREFIX} IMPORTED_TARGET ${PARSED_ARGS_LIBRARIES})
	set(PARSED_ARGS_PUBLICITY PRIVATE)
	if(${PARSED_ARGS_PRIVATE})
		set(PARSED_ARGS_PUBLICITY PRIVATE)
	elseif(${PARSED_ARGS_PUBLIC})
		set(PARSED_ARGS_PUBLICITY PUBLIC)
	elseif(${PARSED_ARGS_INTERFACE})
		set(PARSED_ARGS_PUBLICITY INTERFACE)
	endif()
	foreach(TARGET IN ITEMS ${PARSED_ARGS_TARGETS})
		target_link_libraries(${TARGET} ${PARSED_ARGS_PUBLICITY} PkgConfig::${PARSED_ARGS_PREFIX})
	endforeach()
	pop_fnstack()
endmacro()
set(INC ${CMAKE_CURRENT_SOURCE_DIR} ${CMAKE_CURRENT_BINARY_DIR} subprojects/vgmstream/src subprojects/vgmstream/src/base)
set(UI_BACKENDS "")
list(POP_FRONT UI_BACKENDS)
macro(prefix_all)
	set(ARGS ${ARGV})
	list(POP_FRONT ARGS OUT_VAR PREFIX)
	set(${OUT_VAR} )
	foreach(ARG IN ITEMS ${ARGS})
		list(APPEND ${OUT_VAR} ${PREFIX}${ARG})
	endforeach()
endmacro()

if(BUILD_PROTOBUF)
	set(_PROTOBUF_LIBPROTOBUF protobuf::libprotobuf)
else()
	set(_PROTOBUF_LIBPROTOBUF protobuf::libprotobuf)
endif()
find_program(_PROTOBUF_PROTOC protoc)
function(grpc_proto)
	cmake_parse_arguments(GRPC_PROTO "" "TARGET"
								"SOURCES" ${ARGV})
	foreach (GRPC_PROTO_SOURCE ${GRPC_PROTO_SOURCES})
		set(GRPC_PROTO_SRCS)
		set(GRPC_PROTO_HDRS)
		get_filename_component(src_stem "${GRPC_PROTO_SOURCE}" NAME_WE)
		get_filename_component(src_path "${GRPC_PROTO_SOURCE}" DIRECTORY)
		cmake_path(RELATIVE_PATH src_path BASE_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR} OUTPUT_VARIABLE src_rel_path)
		set(src_out ${CMAKE_CURRENT_BINARY_DIR}/${src_rel_path})
		message("Output directory: ${src_out}")
		list(APPEND GRPC_PROTO_SRCS ${src_out}/${src_stem}.pb.cc)
		list(APPEND GRPC_PROTO_HDRS ${src_out}/${src_stem}.pb.h)
		make_directory(${src_out})
		execute_process(COMMAND ${_PROTOBUF_PROTOC} --cpp_out "${src_out}" -I "${src_path}" "${GRPC_PROTO_SOURCE}")
		target_sources(${GRPC_PROTO_TARGET} PRIVATE ${GRPC_PROTO_SRCS})
		target_include_directories(${GRPC_PROTO_TARGET} PRIVATE ${src_out})
	endforeach()
	target_include_directories(${GRPC_PROTO_TARGET} PUBLIC ${CMAKE_CURRENT_BINARY_DIR})
	if (BUILD_PROTOBUF)
		target_include_directories(${GRPC_PROTO_TARGET} PUBLIC ${CMAKE_SOURCE_DIR}/subprojects/protobuf/src ${CMAKE_SOURCE_DIR}/subprojects/protobuf/third_party/abseil-cpp)
	endif()
	target_link_libraries(${GRPC_PROTO_TARGET} PUBLIC ${_PROTOBUF_LIBPROTOBUF})
endfunction()
prefix_all(LIBRARY_SOURCES
				${CMAKE_CURRENT_SOURCE_DIR}/
				backend.cpp
				options.cpp
				playback.cpp
				util.cpp
				log.cpp
				dbus.cpp
				file_backend.cpp
				playback_backend.cpp
				translation.cpp
				playback_process.cpp
				base85.cpp
)
add_library(liblooper STATIC ${LIBRARY_SOURCES})
if(FOR_WASMER)
	target_compile_definitions(liblooper PUBLIC FOR_WASMER)
endif()
grpc_proto(TARGET liblooper SOURCES ${CMAKE_CURRENT_SOURCE_DIR}/ipc/internal.proto ${CMAKE_CURRENT_SOURCE_DIR}/ipc/common.proto)
target_include_directories(liblooper PUBLIC ${INC})
target_include_directories(liblooper PUBLIC)
set(JSONCPP_TARGET PkgConfig::jsoncpp)
set(SOUNDTOUCH_TARGET PkgConfig::SoundTouch)
function(set_to_value_of_condition var)
	if (${ARGN})
		set(${var} ON PARENT_SCOPE)
	else()
		set(${var} OFF PARENT_SCOPE)
	endif()
endfunction()
set_to_value_of_condition(BUILD_THIRDPARTY DEFINED EMSCRIPTEN OR DEFINED ANDROID_NDK)
find_package(Intl)
set_to_value_of_condition(_USE_LIBINTL_LITE NOT Intl_FOUND)
option(BUILD_JSONCPP "Builds JsonCpp instead of using the system package." ${BUILD_THIRDPARTY})
option(BUILD_SOUNDTOUCH "Builds SoundTouch instead of using the system package" ${BUILD_THIRDPARTY})
option(BUILD_PROTOBUF "Builds protobuf instead of using the system package" ${BUILD_THIRDPARTY})
option(USE_LIBINTL_LITE "Set to ON to build and use libintl-lite" ${_USE_LIBINTL_LITE})
set(LIBINTL_LIBRARY)
set(LIBINTL_INCDIRS)
if(BUILD_JSONCPP)
	add_subdirectory(subprojects/jsoncpp)
	set(JSONCPP_TARGET jsoncpp_static)
endif()
if(BUILD_SOUNDTOUCH)
	set(SOUNDSTRETCH OFF CACHE BOOL "" FORCE)
	set(INTEGER_SAMPLES OFF CACHE BOOL "")
	add_subdirectory(subprojects/soundtouch)
	set(SOUNDTOUCH_TARGET SoundTouch)
endif()
if(BUILD_PROTOBUF)
	add_subdirectory(subprojects/protobuf)
else()
	find_package(protobuf REQUIRED)
	find_package(absl CONFIG REQUIRED)
endif()
if(USE_LIBINTL_LITE)
	add_subdirectory(subprojects/libintl-lite)
	set(LIBINTL_LIBRARY intl CACHE INTERNAL "")
	set(LIBINTL_INCDIRS "subprojects/libintl-lite" CACHE INTERNAL "")
else()
	find_package(Intl REQUIRED)
	set(LIBINTL_LIBRARY Intl::Intl CACHE INTERNAL "")
	set(LIBINTL_INCDIRS ${Intl_INCLUDE_DIRS} CACHE INTERNAL "")
endif()
if (DEFINED ANDROID_NDK)
	add_subdirectory(subprojects/oboe)
	target_link_libraries(liblooper PUBLIC oboe)
endif()
target_link_libraries(liblooper PUBLIC ${Protobuf_LIBRARY_RELEASE} fmt::fmt)
target_include_directories(liblooper PUBLIC ${LIBINTL_INCDIRS})
target_link_libraries(liblooper PUBLIC ${LIBINTL_LIBRARY})
if(DEFINED EMSCRIPTEN)
	target_link_libraries(liblooper PUBLIC ${SDL_MIXER_X_TARGET} ${SOUNDTOUCH_TARGET} libvgmstream ${JSONCPP_TARGET})
	target_compile_options(liblooper PUBLIC "-sUSE_SDL=2")
else()
	if(NOT BUILD_SOUNDTOUCH)
		pkg_check_modules(SoundTouch IMPORTED_TARGET soundtouch)
	endif()
	if (NOT BUILD_JSONCPP)
		pkg_check_modules(jsoncpp IMPORTED_TARGET jsoncpp)
	endif()
	if (NOT BUILD_SDL)
		find_package(SDL2 REQUIRED)
	endif()
	if (ENABLE_DBUS)
		find_package(sdbus-c++)
		if(NOT ${sdbus-c++_FOUND})
			set(ENABLE_DBUS OFF)
			message("Warning: Dbus support not found - Not enabling DBus")
		endif()
	endif()
	set(SDL2_TARGET SDL2::SDL2)
	if (TARGET SDL2-static)
		set(SDL2_TARGET SDL2-static)
	endif()
	target_link_libraries(liblooper PUBLIC ${SDL2_TARGET} SDL2main ${SDL_MIXER_X_TARGET} ${SOUNDTOUCH_TARGET} libvgmstream libvgmstream_shared ${JSONCPP_TARGET})
endif()
if (${ENABLE_DBUS})
	target_link_libraries(liblooper PUBLIC SDBusCpp::sdbus-c++)
	target_compile_definitions(liblooper PUBLIC DBUS_ENABLED)
endif()
macro(add_ui_backend)
	set(ARGS ${ARGV})
	list(POP_FRONT ARGS target)
	add_library(${target} STATIC ${ARGS})
	message("Enabling UI backend '" ${target} "'...")
	list(APPEND UI_BACKENDS ${target})
	set(UI_BACKENDS ${UI_BACKENDS} PARENT_SCOPE)
	add_dependencies(${target} looper_assets)
	target_include_directories(${target} PRIVATE ${CMAKE_CURRENT_SOURCE_DIR} ${CMAKE_CURRENT_BINARY_DIR} ${INC})
	target_link_libraries(${target} PRIVATE liblooper)
	if(${USE_PORTALS})
		target_pkgconfig(TARGETS ${target} PRIVATE PREFIX libPortal LIBRARIES libportal)
		if (NOT ${libPortal_FOUND} EQUAL "1")
			set(USE_PORTALS OFF)
		else()
			info("Enabling libportal support...")
			target_compile_definitions(imgui_ui PRIVATE "PORTALS")
		endif()
	endif()
endmacro()
macro(ui_backend_subdir)
	cmake_parse_arguments(UI_OPTS "" "SUBDIR;NAME;READABLE_NAME" "" ${ARGN} )
	message("Backend ${UI_OPTS_READABLE_NAME} defined...")
	set(UI_DISABLE_OPT DISABLE_${UI_OPTS_NAME}_UI)
	option(${UI_DISABLE_OPT} "Disables the ${UI_OPTS_READABLE_NAME} UI" OFF)
	if (NOT ${${UI_DISABLE_OPT}})
		cmake_path(GET UI_OPTS_SUBDIR STEM UI_OPTS_DIRNAME)
		set(BASE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/${UI_OPTS_SUBDIR})
		add_subdirectory(${UI_OPTS_SUBDIR})
		list(APPEND ENABLED_UIS "${UI_OPTS_DIRNAME}")
		message("Enabled backend ${UI_OPTS_READABLE_NAME}.")
	else()
		message("Disabled backend ${UI_OPTS_READABLE_NAME}")
	endif()
endmacro()
macro(add_playback_backend)
	set(ARGS ${ARGV})
	list(POP_FRONT ARGS target)
	add_library(${target} STATIC ${ARGS})
	message("Enabling playback backend '" ${target} "'...")
	list(APPEND PLAYBACK_BACKENDS ${target})
	set(PLAYBACK_BACKENDS ${PLAYBACK_BACKENDS} PARENT_SCOPE)
	add_dependencies(${target} looper_assets)
	target_include_directories(${target} PRIVATE ${CMAKE_CURRENT_SOURCE_DIR} ${CMAKE_CURRENT_BINARY_DIR} ${INC})
	target_link_libraries(${target} PRIVATE liblooper)
endmacro()
macro(playback_backend_subdir)
	cmake_parse_arguments(PLAYBACK_OPTS "" "SUBDIR;NAME;READABLE_NAME" "" ${ARGN} )
	message("Backend ${PLAYBACK_OPTS_READABLE_NAME} defined...")
	set(PLAYBACK_DISABLE_OPT DISABLE_${PLAYBACK_OPTS_NAME}_PLAYBACK_BACKEND)
	option(${PLAYBACK_DISABLE_OPT} "Disables the ${PLAYBACK_OPTS_READABLE_NAME} playback backend" OFF)
	if (NOT ${${PLAYBACK_DISABLE_OPT}})
		cmake_path(GET PLAYBACK_OPTS_SUBDIR STEM PLAYBACK_OPTS_DIRNAME)
		set(BASE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/${PLAYBACK_OPTS_SUBDIR})
		add_subdirectory(${PLAYBACK_OPTS_SUBDIR})
		list(APPEND ENABLED_PLAYBACK_BACKENDS "${PLAYBACK_OPTS_DIRNAME}")
		message("Enabled backend ${PLAYBACK_OPTS_READABLE_NAME}.")
	else()
		message("Disabled backend ${PLAYBACK_OPTS_READABLE_NAME}")
	endif()
endmacro()
set(ENABLED_UIS )
set(ENABLED_PLAYBACK_BACKENDS )
ui_backend_subdir(NAME "IMGUI" READABLE_NAME "Dear ImGui" SUBDIR backends/ui/imgui)
if (NOT (DEFINED EMSCRIPTEN OR DEFINED ANDROID_NDK))
	ui_backend_subdir(NAME "GTK" READABLE_NAME "GTK4" SUBDIR backends/ui/gtk)
endif()
playback_backend_subdir(NAME "VGMSTREAM" READABLE_NAME "VgmStream" SUBDIR backends/playback/vgmstream)
playback_backend_subdir(NAME "SDL_MIXER_X" READABLE_NAME "SDL Mixer X" SUBDIR backends/playback/sdl_mixer_x)
playback_backend_subdir(NAME "ZSM" READABLE_NAME "ZSM" SUBDIR backends/playback/zsm)
execute_process(COMMAND ${CMAKE_CURRENT_SOURCE_DIR}/gen_ui_backend_inc.py ${CMAKE_CURRENT_BINARY_DIR} --ui ${ENABLED_UIS} --playback ${ENABLED_PLAYBACK_BACKENDS})
prefix_all(SOURCES ${CMAKE_CURRENT_SOURCE_DIR}/ main.cpp daemon_backend.cpp proxy_backend.cpp)
list(APPEND SOURCES ${CMAKE_CURRENT_BINARY_DIR}/backend_glue.cpp)
if(DEFINED EMSCRIPTEN)
	set(CMAKE_EXECUTABLE_SUFFIX ".html")
endif()

set(TARGET_NAME looper)
if(DEFINED EMSCRIPTEN)
	set(TARGET_NAME index)
endif()
function(copy_to_bindir src dst)
	add_custom_command(TARGET ${TARGET_NAME} POST_BUILD COMMAND ${CMAKE_COMMAND} -E copy "${CMAKE_CURRENT_SOURCE_DIR}/${src}" "$<TARGET_FILE_DIR:${TARGET_NAME}>/${dst}")
endfunction()
if (DEFINED ANDROID_NDK OR SHARED_LIB)
	add_library(${TARGET_NAME} SHARED ${SOURCES})
else()
	add_executable(${TARGET_NAME} ${SOURCES})
endif()
add_dependencies(${TARGET_NAME} looper_assets ${UI_BACKENDS})

if(DEFINED EMSCRIPTEN)
	copy_to_bindir(assets/icon.svg icon.svg)
	copy_to_bindir(assets/icon.png icon.png)
	copy_to_bindir(web/shell.js shell.js)
	copy_to_bindir(web/style.css style.css)
	copy_to_bindir(web/serviceWorker.js serviceWorker.js)
	copy_to_bindir(web/manifest.json manifest.json)
	copy_to_bindir(assets/ForkAwesome/fonts/forkawesome-webfont.ttf forkawesome-webfont.ttf)
	copy_to_bindir(assets/ForkAwesome/css/fork-awesome.min.css fork-awesome.min.css)
	copy_to_bindir(assets/ForkAwesome/css/fork-awesome.min.css.map fork-awesome.min.css.map)
endif()
target_link_libraries(${TARGET_NAME} PUBLIC liblooper ${UI_BACKENDS} ${PLAYBACK_BACKENDS})
install(TARGETS ${TARGET_NAME} ${EXTRA_LIBS})
if (${BUILD_SDL2})
	install(EXPORT SDL2-static SDL2main)
endif()
if (NOT DEFINED EMSCRIPTEN)
	install(FILES assets/icon.svg DESTINATION ${CMAKE_INSTALL_DATADIR}/icons/hicolor/scalable/apps/)
	install(FILES assets/com.complecwaft.Looper.desktop DESTINATION ${CMAKE_INSTALL_DATADIR}/applications)
	install(FILES assets/com.complecwaft.Looper.metainfo.xml DESTINATION ${CMAKE_INSTALL_DATADIR}/metainfo)
	install(DIRECTORY assets/translations/ TYPE LOCALE PATTERN "*" EXCLUDE PATTERN "looper.pot")
endif()

if (SHARED_LIB)
	target_compile_definitions(${TARGET_NAME} PRIVATE "LIBRARY_MODE")
endif()

if(TESTS)
	include(GoogleTest)
	include(CTest)
	set(INSTALL_GTEST OFF CACHE BOOL "" FORCE)
	add_subdirectory(subprojects/googletest)
	add_executable(looper_tests tests.cpp ${CMAKE_CURRENT_BINARY_DIR}/backend_glue.cpp)
	add_dependencies(looper_tests looper_assets)
	target_link_libraries(looper_tests PRIVATE ${PLAYBACK_BACKENDS} ${UI_BACKENDS})
	set(TESTS "FileBackend.Seeking" "FileBackend.Reading" "FileBackend.ReadingSeeking" "PlaybackBackend.Looping")
	foreach (test ${TESTS})
		get_filename_component(test_cat ${test} NAME_WE)
		get_filename_component(test_name ${test} EXT)
		string(SUBSTRING ${test_name} 1 -1 test_name)
		add_test(NAME ${test_name} COMMAND ${CMAKE_CURRENT_BINARY_DIR}/looper_tests --gtest_filter=${test} PROPERTY LABELS ${test_cat})
	endforeach()
	target_include_directories(liblooper SYSTEM PUBLIC subprojects/googletest/googletest/include)
	target_link_libraries(looper_tests PRIVATE liblooper)
	target_link_libraries(liblooper PUBLIC gtest_main)
	target_compile_definitions(liblooper PUBLIC TESTS)
endif()