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CMakeLists.txt
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# to compile:
# - emscripten, run cmake -DCMAKE_COMPILER_IS_MINGW=1 -DCMAKE_TOOLCHAIN_FILE=%EMSCRIPTEN%/cmake/Modules/Platform/Emscripten.cmake -GNinja ..
# - android, use android studio
# - iOS, first run cmake -DIOS=1 -GNinja .. to generate all temporary files, then use XCode
# - macOS, run cmake -DCMAKE_OSX_ARCHITECTURES=x86_64 -GNinja ..
# - win, use plain cmake
cmake_minimum_required(VERSION 3.3)
option(BGFX_DEBUG "BGFX debug libraries" OFF)
option(FMOD_DEBUG "FMOD debug and live update" OFF)
option(FMOD_DISABLE "disable FMOD and all sounds" OFF)
option(NO_ATLAS "disable atlases" OFF)
option(NO_BATCHING "disable batching" OFF)
# ----------------------------------------------------------------------------------
# project core config
set(PRJ_TARGET "leengine")
set(ROOT ${CMAKE_CURRENT_SOURCE_DIR})
project(${PRJ_TARGET})
# ----------------------------------------------------------------------------------
# cleanup global compiler flag to get more refined control
if(WIN32)
# replace /MD -> /MT
set(compiler_flags
CMAKE_C_FLAGS
CMAKE_C_FLAGS_DEBUG
CMAKE_C_FLAGS_RELEASE
CMAKE_C_FLAGS_RELWITHDEBINFO
CMAKE_C_FLAGS_MINSIZEREL
CMAKE_CXX_FLAGS
CMAKE_CXX_FLAGS_DEBUG
CMAKE_CXX_FLAGS_RELEASE
CMAKE_CXX_FLAGS_RELWITHDEBINFO
CMAKE_CXX_FLAGS_MINSIZEREL
)
foreach(compiler_flag ${compiler_flags})
string(REPLACE "/MD" "/MT" ${compiler_flag} "${${compiler_flag}}")
endforeach()
endif()
separate_arguments(CMAKE_C_FLAGS)
separate_arguments(CMAKE_C_FLAGS_DEBUG)
separate_arguments(CMAKE_C_FLAGS_RELEASE)
separate_arguments(CMAKE_C_FLAGS_RELWITHDEBINFO)
separate_arguments(CMAKE_C_FLAGS_MINSIZEREL)
separate_arguments(CMAKE_CXX_FLAGS)
separate_arguments(CMAKE_CXX_FLAGS_DEBUG)
separate_arguments(CMAKE_CXX_FLAGS_RELEASE)
separate_arguments(CMAKE_CXX_FLAGS_RELWITHDEBINFO)
separate_arguments(CMAKE_CXX_FLAGS_MINSIZEREL)
set(PRJ_C_FLAGS "${CMAKE_C_FLAGS}" CACHE STRING "overridden flags")
set(PRJ_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG}" CACHE STRING "overridden flags")
set(PRJ_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE}" CACHE STRING "overridden flags")
set(PRJ_C_FLAGS_RELWITHDEBINFO "${CMAKE_C_FLAGS_RELWITHDEBINFO}" CACHE STRING "overridden flags")
set(PRJ_C_FLAGS_MINSIZEREL "${CMAKE_C_FLAGS_MINSIZEREL}" CACHE STRING "overridden flags")
set(PRJ_CXX_FLAGS "${CMAKE_CXX_FLAGS}" CACHE STRING "overridden flags")
set(PRJ_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG}" CACHE STRING "overridden flags")
set(PRJ_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE}" CACHE STRING "overridden flags")
set(PRJ_CXX_FLAGS_RELWITHDEBINFO "${CMAKE_CXX_FLAGS_RELWITHDEBINFO}" CACHE STRING "overridden flags")
set(PRJ_CXX_FLAGS_MINSIZEREL "${CMAKE_CXX_FLAGS_MINSIZEREL}" CACHE STRING "overridden flags")
set(CMAKE_C_FLAGS "" CACHE STRING "overridden flags" FORCE)
set(CMAKE_C_FLAGS_DEBUG "" CACHE STRING "overridden flags" FORCE)
set(CMAKE_C_FLAGS_RELEASE "" CACHE STRING "overridden flags" FORCE)
set(CMAKE_C_FLAGS_RELWITHDEBINFO "" CACHE STRING "overridden flags" FORCE)
set(CMAKE_C_FLAGS_MINSIZEREL "" CACHE STRING "overridden flags" FORCE)
set(CMAKE_CXX_FLAGS "" CACHE STRING "overridden flags" FORCE)
set(CMAKE_CXX_FLAGS_DEBUG "" CACHE STRING "overridden flags" FORCE)
set(CMAKE_CXX_FLAGS_RELEASE "" CACHE STRING "overridden flags" FORCE)
set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "" CACHE STRING "overridden flags" FORCE)
set(CMAKE_CXX_FLAGS_MINSIZEREL "" CACHE STRING "overridden flags" FORCE)
set(PRJ_ALL_C_FLAGS $<$<COMPILE_LANGUAGE:C>:${PRJ_C_FLAGS};$<$<CONFIG:Debug>:${PRJ_C_FLAGS_DEBUG}>;$<$<CONFIG:Release>:${CMAKE_C_FLAGS_RELEASE}>;$<$<CONFIG:RelWithDebInfo>:${CMAKE_C_FLAGS_RELWITHDEBINFO}>;$<$<CONFIG:MinSizeRel>:${CMAKE_C_FLAGS_MINSIZEREL}>>)
set(PRJ_ALL_CXX_FLAGS $<$<COMPILE_LANGUAGE:CXX>:${PRJ_CXX_FLAGS};$<$<CONFIG:Debug>:${PRJ_CXX_FLAGS_DEBUG}>;$<$<CONFIG:Release>:${CMAKE_CXX_FLAGS_RELEASE}>;$<$<CONFIG:RelWithDebInfo>:${CMAKE_CXX_FLAGS_RELWITHDEBINFO}>;$<$<CONFIG:MinSizeRel>:${CMAKE_CXX_FLAGS_MINSIZEREL}>>)
set(PRJ_ALL_COMBINED_FLAGS ${PRJ_ALL_C_FLAGS};${PRJ_ALL_CXX_FLAGS})
# ----------------------------------------------------------------------------------
# figure out for which platform we target and what we are running on
# targets
if(EMSCRIPTEN)
set(PRJ_TARGET_EMSCRIPTEN 1)
set(PRJ_SHADERS_PLATFORM "asm.js")
set(PRJ_BUILD_EXECUTABLE 1)
#set(PRJ_FMOD_AVAILABLE 1)
link_directories(
${ROOT}/3rdparty/bgfx/libs/emscripten
)
elseif(ANDROID_PLATFORM)
set(PRJ_TARGET_ANDROID 1)
set(PRJ_SHADERS_PLATFORM "android")
set(PRJ_BUILD_SHARED_LIB 1)
#set(PRJ_FMOD_AVAILABLE 1)
# TODO fix android CPU arch build
link_directories(
${ROOT}/3rdparty/bgfx/libs/android_armv7a
${ROOT}/3rdparty/fmod/libs/android/armeabi-v7a
)
elseif(APPLE AND IOS)
set(PRJ_TARGET_IOS 1)
set(PRJ_SHADERS_PLATFORM "ios")
elseif(APPLE)
set(PRJ_TARGET_MACOS 1)
set(PRJ_SHADERS_PLATFORM "osx")
set(PRJ_BUILD_EXECUTABLE 1)
#set(PRJ_FMOD_AVAILABLE 1)
link_directories(
${ROOT}/3rdparty/bgfx/libs/osx_x64
${ROOT}/3rdparty/fmod/libs/osx
)
if(NOT "${CMAKE_SIZEOF_VOID_P}" EQUAL "8")
message(FATAL_ERROR "only 64 bit builds are supported")
endif()
elseif(WIN32)
set(PRJ_TARGET_WINDOWS 1)
set(PRJ_SHADERS_PLATFORM "windows")
set(PRJ_SHADERS_ARGS_VS -p vs_4_0 -O 3)
set(PRJ_SHADERS_ARGS_FS -p ps_4_0 -O 3)
set(PRJ_BUILD_EXECUTABLE 1)
#set(PRJ_FMOD_AVAILABLE 1)
link_directories(
${ROOT}/3rdparty/bgfx/libs/vs2015_x64
${ROOT}/3rdparty/fmod/libs/vs2015_x64
#${ROOT}/3rdparty/nanomsg/libs/vs2015_x64
)
if(NOT "${CMAKE_SIZEOF_VOID_P}" EQUAL "8")
message(FATAL_ERROR "only 64 bit builds are supported")
endif()
# hotfix bgfx debug build for non release builds on Windows, because of STL
if(NOT CMAKE_BUILD_TYPE STREQUAL "Release")
set(BGFX_DEBUG 1)
endif()
else()
message(FATAL_ERROR "unknown target")
endif()
if(FMOD_DISABLE)
unset(PRJ_FMOD_AVAILABLE)
endif()
# hosts
if(CMAKE_HOST_APPLE)
set(PRJ_HOST_MACOS 1)
set(PRJ_SHADERS_COMPILER "${ROOT}/3rdparty/bgfx/bin/shaderc_osx")
set(PRJ_TEXTURE_COMPILER "${ROOT}/3rdparty/bgfx/bin/texturec_osx")
set(PRJ_BIN2C "${ROOT}/3rdparty/bin2c/bin2c")
set(PRJ_PYTHON "/usr/bin/python")
elseif(CMAKE_HOST_WIN32)
set(PRJ_HOST_WINDOWS 1)
set(PRJ_SHADERS_COMPILER "${ROOT}/3rdparty/bgfx/bin/shaderc_win.exe")
set(PRJ_TEXTURE_COMPILER "${ROOT}/3rdparty/bgfx/bin/texturec_win.exe")
set(PRJ_BIN2C "${ROOT}/3rdparty/bin2c/bin2c.exe")
if(PRJ_TARGET_EMSCRIPTEN)
# Emscripten overrides python but we still want to use system python because of installed packages
set(PRJ_PYTHON py -3)
else()
set(PRJ_PYTHON "python")
endif()
else()
message(FATAL_ERROR "unknown host")
endif()
# ----------------------------------------------------------------------------------
# built-in shaders and textures
set(gen_src)
list(APPEND gen_src ${ROOT}/src/shaders/tex_color_vs_${PRJ_SHADERS_PLATFORM}.h)
add_custom_command(
OUTPUT ${ROOT}/src/shaders/tex_color_vs_${PRJ_SHADERS_PLATFORM}.h
COMMAND ${PRJ_SHADERS_COMPILER}
-i 3rdparty/bgfx/include --type vertex --platform ${PRJ_SHADERS_PLATFORM} ${PRJ_SHADERS_ARGS_VS}
-f src/shaders/tex_color.vs -o src/shaders/tex_color_vs_${PRJ_SHADERS_PLATFORM}.h --bin2c tex_color_vs
DEPENDS src/shaders/tex_color.vs ${PRJ_SHADERS_COMPILER}
WORKING_DIRECTORY ${ROOT}
)
list(APPEND gen_src ${ROOT}/src/shaders/tex_color_fs_${PRJ_SHADERS_PLATFORM}.h)
add_custom_command(
OUTPUT ${ROOT}/src/shaders/tex_color_fs_${PRJ_SHADERS_PLATFORM}.h
COMMAND ${PRJ_SHADERS_COMPILER}
-i 3rdparty/bgfx/include --type fragment --platform ${PRJ_SHADERS_PLATFORM} ${PRJ_SHADERS_ARGS_FS}
-f src/shaders/tex_color.fs -o src/shaders/tex_color_fs_${PRJ_SHADERS_PLATFORM}.h --bin2c tex_color_fs
DEPENDS src/shaders/tex_color.fs ${PRJ_SHADERS_COMPILER}
WORKING_DIRECTORY ${ROOT}
)
list(APPEND gen_src ${ROOT}/src/_missing_texture.h)
add_custom_command(
OUTPUT ${ROOT}/src/_missing_texture.h
COMMAND ${PRJ_TEXTURE_COMPILER} -f src/_missing_texture.png -o src/_missing_texture.ktx -t RGBA8
COMMAND ${PRJ_BIN2C} -n _missing_texture -o src/_missing_texture.h src/_missing_texture.ktx
DEPENDS src/_missing_texture.png ${PRJ_TEXTURE_COMPILER} ${PRJ_BIN2C}
WORKING_DIRECTORY ${ROOT}
)
# ----------------------------------------------------------------------------------
# build sources
file(GLOB_RECURSE src
${ROOT}/3rdparty/bgfx/include/*.h
${ROOT}/3rdparty/entrypoint/*.h
${ROOT}/3rdparty/entrypoint/*.c
#${ROOT}/3rdparty/fmod/include/*.h
${ROOT}/3rdparty/fontstash/*.h
${ROOT}/3rdparty/gb/*.h
${ROOT}/3rdparty/gb/*.c
${ROOT}/3rdparty/nativefonts/*.h
${ROOT}/3rdparty/nativefonts/*.c
${ROOT}/3rdparty/nativefonts/*.cpp
${ROOT}/3rdparty/stb/*.h
${ROOT}/3rdparty/stb/*.c
${ROOT}/3rdparty/tinycthread/*.h
${ROOT}/3rdparty/tinycthread/*.c
#${ROOT}/3rdparty/tlsf/*.h
#${ROOT}/3rdparty/tlsf/*.c
${ROOT}/src/*.h
${ROOT}/src/*.c
${ROOT}/examples/*.c
${ROOT}/examples/*.h
)
set_property(DIRECTORY APPEND PROPERTY CMAKE_CONFIGURE_DEPENDS ${ROOT}/src ${ROOT}/examples)
if(PRJ_TARGET_IOS OR PRJ_TARGET_MACOS)
file(GLOB_RECURSE src_objc
${ROOT}/3rdparty/entrypoint/*.m
${ROOT}/src/*.m
)
list(APPEND src ${src_objc})
endif()
list(APPEND src ${gen_src})
if(PRJ_BUILD_EXECUTABLE)
add_executable(${PRJ_TARGET} ${src})
elseif(PRJ_BUILD_SHARED_LIB)
add_library(${PRJ_TARGET} SHARED ${src})
else()
# in case if we're not building final executable here
# always build all generated files
add_custom_target(${PRJ_TARGET}_builtins ALL DEPENDS ${src})
endif()
if(PRJ_BUILD_EXECUTABLE OR PRJ_BUILD_SHARED_LIB)
target_compile_options(${PRJ_TARGET} PRIVATE ${PRJ_ALL_COMBINED_FLAGS})
target_include_directories(
${PRJ_TARGET} PRIVATE
${ROOT}/3rdparty/bgfx/include
${ROOT}/3rdparty/entrypoint
#${ROOT}/3rdparty/fmod/include
${ROOT}/3rdparty/fontstash
${ROOT}/3rdparty/gb
${ROOT}/3rdparty/nativefonts
${ROOT}/3rdparty/stb
${ROOT}/3rdparty/tinycthread
#${ROOT}/3rdparty/tlsf
${ROOT}/src/helpers
${ROOT}/src/shaders
${ROOT}/src
${ROOT}/exmaples/00-helloworld
)
target_compile_definitions(${PRJ_TARGET} PRIVATE
SHADER_INCLUDE_VS=\"tex_color_vs_${PRJ_SHADERS_PLATFORM}.h\"
SHADER_INCLUDE_FS=\"tex_color_fs_${PRJ_SHADERS_PLATFORM}.h\"
)
if(BGFX_DEBUG)
target_link_libraries(
${PRJ_TARGET}
bgfxDebug
bimgDebug
bxDebug
)
else()
target_link_libraries(
${PRJ_TARGET}
bgfxRelease
bimgRelease
bxRelease
)
endif()
if(PRJ_FMOD_AVAILABLE)
target_compile_definitions(${PRJ_TARGET} PRIVATE FMOD_AVAILABLE)
if(FMOD_DEBUG)
target_compile_definitions(${PRJ_TARGET} PRIVATE FMOD_DEBUG)
endif()
if(PRJ_TARGET_WINDOWS)
target_link_libraries(${PRJ_TARGET} fmod64_vc fmodstudio64_vc)
elseif(PRJ_TARGET_EMSCRIPTEN)
set(FMOD_EMSCRIPTEN_LIBS "${ROOT}/3rdparty/fmod/libs/emscripten/fmod.bc ${ROOT}/3rdparty/fmod/libs/emscripten/fmodstudio.bc")
else()
target_link_libraries(${PRJ_TARGET} fmod fmodstudio)
endif()
endif()
if(PRJ_TARGET_EMSCRIPTEN)
target_compile_options(${PRJ_TARGET} PUBLIC "-fomit-frame-pointer" "-O3" "-s" "AGGRESSIVE_VARIABLE_ELIMINATION=1" "-g0")
set_target_properties(${PRJ_TARGET} PROPERTIES LINK_FLAGS "${FMOD_EMSCRIPTEN_LIBS} -fno-rtti -fno-exceptions -s TOTAL_MEMORY=256000000 --preload-file ${ROOT}/res@/ --memory-init-file 1 -O3")
add_custom_command(TARGET ${PRJ_TARGET} POST_BUILD COMMAND ${CMAKE_COMMAND} -E copy_if_different "${ROOT}/emscripten-template/index.html" $<TARGET_FILE_DIR:${PRJ_TARGET}>)
elseif(PRJ_TARGET_ANDROID)
target_compile_options(${PRJ_TARGET} PUBLIC "-O3")
target_include_directories(${PRJ_TARGET} PRIVATE ${ANDROID_NDK}/sources/android/native_app_glue)
target_link_libraries(${PRJ_TARGET} android log EGL GLESv2)
elseif(PRJ_TARGET_IOS)
target_compile_options(${PRJ_TARGET} PUBLIC "-fobjc-arc")
elseif(PRJ_TARGET_MACOS)
target_compile_options(${PRJ_TARGET} PUBLIC "-fobjc-arc")
target_link_libraries(${PRJ_TARGET} "-framework Cocoa" "-framework CoreGraphics" "-framework Quartz" "-framework Metal")
if(PRJ_FMOD_AVAILABLE)
add_custom_command(TARGET ${PRJ_TARGET} POST_BUILD COMMAND ${CMAKE_COMMAND} -E copy_if_different "${ROOT}/3rdparty/fmod/libs/osx/libfmod.dylib" $<TARGET_FILE_DIR:${PRJ_TARGET}>)
add_custom_command(TARGET ${PRJ_TARGET} POST_BUILD COMMAND ${CMAKE_COMMAND} -E copy_if_different "${ROOT}/3rdparty/fmod/libs/osx/libfmodstudio.dylib" $<TARGET_FILE_DIR:${PRJ_TARGET}>)
endif()
elseif(PRJ_TARGET_WINDOWS)
target_compile_definitions(${PRJ_TARGET} PRIVATE _CRT_SECURE_NO_WARNINGS)
target_compile_definitions(${PRJ_TARGET} PRIVATE _ITERATOR_DEBUG_LEVEL=0)
target_compile_definitions(${PRJ_TARGET} PRIVATE _WIN32)
if(PRJ_FMOD_AVAILABLE)
add_custom_command(TARGET ${PRJ_TARGET} POST_BUILD COMMAND ${CMAKE_COMMAND} -E copy_if_different "${ROOT}/3rdparty/fmod/bin/fmod64.dll" $<TARGET_FILE_DIR:${PRJ_TARGET}>)
add_custom_command(TARGET ${PRJ_TARGET} POST_BUILD COMMAND ${CMAKE_COMMAND} -E copy_if_different "${ROOT}/3rdparty/fmod/bin/fmodstudio64.dll" $<TARGET_FILE_DIR:${PRJ_TARGET}>)
endif()
endif()
endif()