cmake_minimum_required(VERSION 3.16.9)

project(rpcs3)

if(${CMAKE_CXX_COMPILER_ID} MATCHES "GNU")
    if(CMAKE_CXX_COMPILER_VERSION VERSION_LESS 10)
        message(FATAL_ERROR "RPCS3 requires at least gcc-10.")
    endif()
elseif(${CMAKE_CXX_COMPILER_ID} MATCHES "Clang")
    if(CMAKE_CXX_COMPILER_VERSION VERSION_LESS 12.0)
        message(FATAL_ERROR "RPCS3 requires at least clang-12.0.")
    endif()
endif()

# include build options
include(options.cmake)

set(CMAKE_MODULE_PATH "${CMAKE_CURRENT_LIST_DIR}/buildfiles/cmake")

set(CMAKE_CXX_STANDARD 20)
include(CheckCXXCompilerFlag)

if(NOT CMAKE_BUILD_TYPE)
    message(STATUS "No build type selected, default to Release")
    set(CMAKE_BUILD_TYPE "Release")
endif()

if(NOT CMAKE_BUILD_TYPE MATCHES "Debug")
    add_definitions(-DNDEBUG)
elseif(NOT MSVC)
    add_definitions(-D_DEBUG)
endif()

if(NOT CMAKE_SIZEOF_VOID_P EQUAL 8)
    message( FATAL_ERROR "RPCS3 can only be compiled on 64-bit platforms." )
endif()

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()

if(WIN32)
    add_definitions(-DUNICODE)
    add_definitions(-D_WIN32_WINNT=0x0602)
endif()

if(APPLE)
    include_directories(/opt/local/include)
    link_directories(/opt/local/lib)
endif()

# Warnings are silenced for 3rdparty code
set(CMAKE_CXX_FLAGS -w)
set(CMAKE_C_FLAGS -w)
set(LLVM_ENABLE_WARNINGS OFF CACHE BOOL "")

if(MSVC)
    add_compile_options(/wd4530 /utf-8) # C++ exception handler used, but unwind semantics are not enabled
endif()

add_subdirectory(Vulkan EXCLUDE_FROM_ALL)
add_subdirectory(3rdparty)

unset(CMAKE_CXX_FLAGS)
unset(CMAKE_C_FLAGS)

if(NOT WIN32)
    add_compile_options(-pthread)
endif()

# TODO: do real installation, including copying directory structure
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY_RELEASE "${PROJECT_BINARY_DIR}/bin")
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY_DEBUG "${PROJECT_BINARY_DIR}/bin")
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY_RELWITHDEBINFO "${PROJECT_BINARY_DIR}/bin")

set(CMAKE_EXPORT_COMPILE_COMMANDS ON)

add_subdirectory(rpcs3)