third_party_vulkan-loader/CMakeLists.txt

cmake_minimum_required(VERSION 2.8.11)

# This must come before the project command.
set(CMAKE_OSX_DEPLOYMENT_TARGET "10.12" CACHE STRING "Minimum OS X deployment version")

project(VULKAN_LOADER)
set (CMAKE_VERBOSE_MAKEFILE 0)

# The API_NAME allows renaming builds to avoid conflicts with installed SDKs
# The MAJOR number of the version we're building, used in naming
# <api-name>-<major>.dll (and other files).
set(API_NAME "Vulkan" CACHE STRING "API name to use when building")
set(MAJOR "1")
string(TOLOWER ${API_NAME} API_LOWERCASE)

set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_CURRENT_SOURCE_DIR}/cmake")
find_package(PythonInterp 3 REQUIRED)

option(USE_CCACHE "Use ccache" OFF)
if (USE_CCACHE)
    find_program(CCACHE_FOUND ccache)
    if(CCACHE_FOUND)
        set_property(GLOBAL PROPERTY RULE_LAUNCH_COMPILE ccache)
        set_property(GLOBAL PROPERTY RULE_LAUNCH_LINK ccache)
    endif(CCACHE_FOUND)
endif()

if(APPLE)
    # CMake versions 3 or later need CMAKE_MACOSX_RPATH defined.
    # This avoids the CMP0042 policy message.
    set(CMAKE_MACOSX_RPATH 1)
    # The "install" target for MacOS fixes up bundles in place.
    set(CMAKE_INSTALL_PREFIX ${CMAKE_BINARY_DIR})
endif()

# Enable cmake folders
set_property(GLOBAL PROPERTY USE_FOLDERS ON)
set(LVL_TARGET_FOLDER lvl_cmake_targets)

if(CMAKE_SYSTEM_NAME STREQUAL "Linux" OR CMAKE_SYSTEM_NAME STREQUAL "Darwin")
    set(FALLBACK_CONFIG_DIRS "/etc/xdg" CACHE STRING
        "Search path to use when XDG_CONFIG_DIRS is unset or empty or the current process is SUID/SGID. Default is freedesktop compliant.")
    set(FALLBACK_DATA_DIRS "/usr/local/share:/usr/share" CACHE STRING
        "Search path to use when XDG_DATA_DIRS is unset or empty or the current process is SUID/SGID. Default is freedesktop compliant.")
endif()

if(CMAKE_SYSTEM_NAME STREQUAL "Linux")
    include(FindPkgConfig)
    option(BUILD_WSI_XCB_SUPPORT "Build XCB WSI support" ON)
    option(BUILD_WSI_XLIB_SUPPORT "Build Xlib WSI support" ON)
    option(BUILD_WSI_WAYLAND_SUPPORT "Build Wayland WSI support" ON)
    option(BUILD_WSI_MIR_SUPPORT "Build Mir WSI support" OFF)
    set(DEMOS_WSI_SELECTION "XCB" CACHE STRING "Select WSI target for demos (XCB, XLIB, WAYLAND, MIR, DISPLAY)")

    if (BUILD_WSI_XCB_SUPPORT)
        find_package(XCB REQUIRED)
    endif()

    if (BUILD_WSI_XLIB_SUPPORT)
        find_package(X11 REQUIRED)
    endif()

    if (BUILD_WSI_WAYLAND_SUPPORT)
        find_package(Wayland REQUIRED)
        include_directories(${WAYLAND_CLIENT_INCLUDE_DIR})
    endif()

    if (BUILD_WSI_MIR_SUPPORT)
        find_package(Mir REQUIRED)
    endif()
endif()

if(WIN32)
    option(ENABLE_WIN10_ONECORE "Link the loader with OneCore umbrella libraries" OFF)
endif()

set(SCRIPTS_DIR "${CMAKE_CURRENT_SOURCE_DIR}/scripts")

# Add location of Vulkan header files to include search path
set(vulkan_include_dir "${PROJECT_SOURCE_DIR}/Vulkan-Headers/include")
include_directories(${vulkan_include_dir})

if (CMAKE_COMPILER_IS_GNUCC OR CMAKE_C_COMPILER_ID MATCHES "Clang")
    set(COMMON_COMPILE_FLAGS "-Wall -Wextra -Wno-unused-parameter -Wno-missing-field-initializers")
    set(COMMON_COMPILE_FLAGS "${COMMON_COMPILE_FLAGS} -fno-strict-aliasing -fno-builtin-memcmp")

    # For GCC version 7.1 or greater, we need to disable the implicit fallthrough warning since
    # there's no consistent way to satisfy all compilers until they all accept the C++17 standard
    if (CMAKE_COMPILER_IS_GNUCC AND NOT (CMAKE_CXX_COMPILER_VERSION LESS 7.1))
        set(COMMON_COMPILE_FLAGS "${COMMON_COMPILE_FLAGS} -Wimplicit-fallthrough=0")
    endif()

    if (APPLE)
        set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${COMMON_COMPILE_FLAGS}")
    else()
        set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -std=c99 ${COMMON_COMPILE_FLAGS}")
    endif()
    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${COMMON_COMPILE_FLAGS} -std=c++11 -fno-rtti")
    if (UNIX)
        set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fvisibility=hidden")
        set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fvisibility=hidden")
    endif()
endif()

if(WIN32)
    # Treat warnings as errors
    add_compile_options("$<$<CXX_COMPILER_ID:MSVC>:/WX>")
    # Disable RTTI
    add_compile_options("$<$<CXX_COMPILER_ID:MSVC>:/GR->")
    # Warn about nested declarations
    add_compile_options("$<$<CXX_COMPILER_ID:MSVC>:/w34456>")
    # Warn about potentially uninitialized variables
    add_compile_options("$<$<CXX_COMPILER_ID:MSVC>:/w34701>")
    add_compile_options("$<$<CXX_COMPILER_ID:MSVC>:/w34703>")
    # Warn about different indirection types.
    add_compile_options("$<$<CXX_COMPILER_ID:MSVC>:/w34057>")
    # Warn about signed/unsigned mismatch.
    add_compile_options("$<$<CXX_COMPILER_ID:MSVC>:/w34245>")
endif()

option(BUILD_LOADER "Build loader" ON)
option(BUILD_TESTS "Build tests" ON)

set (PYTHON_CMD ${PYTHON_EXECUTABLE})

# Define macro used for building vkxml generated files
macro(run_vk_xml_generate dependency output)
    add_custom_command(OUTPUT ${output}
    COMMAND ${PYTHON_CMD} ${SCRIPTS_DIR}/lvl_genvk.py -registry ${SCRIPTS_DIR}/vk.xml ${output}
    DEPENDS ${SCRIPTS_DIR}/vk.xml ${SCRIPTS_DIR}/generator.py ${SCRIPTS_DIR}/${dependency} ${SCRIPTS_DIR}/lvl_genvk.py ${SCRIPTS_DIR}/reg.py
    )
endmacro()

# Custom target for generated vulkan helper file dependencies
add_custom_target(generate_helper_files DEPENDS
    vk_enum_string_helper.h
    vk_safe_struct.h
    vk_safe_struct.cpp
    vk_object_types.h
    vk_layer_dispatch_table.h
    vk_dispatch_table_helper.h
    vk_extension_helper.h
    vk_typemap_helper.h
    )
set_target_properties(generate_helper_files PROPERTIES FOLDER ${LVL_TARGET_FOLDER})

# Rules to build generated helper files
run_vk_xml_generate(loader_extension_generator.py vk_layer_dispatch_table.h)
run_vk_xml_generate(dispatch_table_helper_generator.py vk_dispatch_table_helper.h)
run_vk_xml_generate(helper_file_generator.py vk_safe_struct.h)
run_vk_xml_generate(helper_file_generator.py vk_safe_struct.cpp)
run_vk_xml_generate(helper_file_generator.py vk_enum_string_helper.h)
run_vk_xml_generate(helper_file_generator.py vk_object_types.h)
run_vk_xml_generate(helper_file_generator.py vk_extension_helper.h)
run_vk_xml_generate(helper_file_generator.py vk_typemap_helper.h)

if(NOT WIN32)
    include(GNUInstallDirs)

    add_definitions(-DFALLBACK_CONFIG_DIRS="${FALLBACK_CONFIG_DIRS}")
    add_definitions(-DFALLBACK_DATA_DIRS="${FALLBACK_DATA_DIRS}")
    add_definitions(-DSYSCONFDIR="${CMAKE_INSTALL_FULL_SYSCONFDIR}")

    # Make sure /etc is searched by the loader
    if(NOT (CMAKE_INSTALL_FULL_SYSCONFDIR STREQUAL "/etc"))
        add_definitions(-DEXTRASYSCONFDIR="/etc")
    endif()
endif()

if(UNIX)
    install(DIRECTORY "${PROJECT_SOURCE_DIR}/Vulkan-Headers/include/vulkan" DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})
    install(FILES "${CMAKE_CURRENT_BINARY_DIR}/vk_layer_dispatch_table.h" DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}/vulkan")

# uninstall target
configure_file(
    "${CMAKE_CURRENT_SOURCE_DIR}/cmake/cmake_uninstall.cmake.in"
    "${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake"
    IMMEDIATE @ONLY)

add_custom_target(uninstall
    COMMAND ${CMAKE_COMMAND} -P ${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake)
endif()

add_definitions(-DAPI_NAME="${API_NAME}")

if(BUILD_LOADER)
    add_subdirectory(loader)
endif()

if(BUILD_TESTS)
    add_subdirectory(tests)
endif()