cmake_minimum_required(VERSION 3.20)
project(kaizen)

if (WIN32)
  add_compile_definitions(NOMINMAX)
  add_compile_definitions(_CRT_SECURE_NO_WARNINGS)
endif ()

add_compile_definitions(VK_NO_PROTOTYPES)

if(APPLE)
  set(CMAKE_OSX_DEPLOYMENT_TARGET 11.0)
  enable_language(OBJC)
endif()

set(VULKAN_VALIDATION FALSE)
set(SANITIZERS FALSE)
set(CMAKE_CXX_STANDARD 23)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
if(${CMAKE_BUILD_TYPE} MATCHES Release OR ${CMAKE_BUILD_TYPE} MATCHES RelWithDebInfo)
  if(NOT SANITIZERS)
    message("LTO ON")
    set(CMAKE_INTERPROCEDURAL_OPTIMIZATION TRUE)
  endif()
endif()

include_directories(
  src/frontend/Settings
  src/frontend
  src/
  .
  src/utils
  src/backend
  src/backend/core
  src/backend/core/mmio
  src/backend/core/mmio/PIF
  src/backend/core/registers
  src/backend/core/rsp
  external
  external/xbyak
  external/mio/include
  external/json/include
  external/parallel-rdp
  external/parallel-rdp
  external/parallel-rdp/parallel-rdp-standalone/parallel-rdp
  external/parallel-rdp/parallel-rdp-standalone/volk
  external/parallel-rdp/parallel-rdp-standalone/spirv-cross
  external/parallel-rdp/parallel-rdp-standalone/vulkan
  external/parallel-rdp/parallel-rdp-standalone/vulkan-headers/include
  external/parallel-rdp/parallel-rdp-standalone/util
  external/unarr
  external/SDL/include
  external/sse2neon
  external/capstone/include
  external/imgui
  external/imgui/backends
  external/cflags/include
  external/mINI/src/
  src/frontend/ImGuiImpl/
)

option(RAPIDJSON_BUILD_DOC "Build rapidjson documentation." OFF)
option(RAPIDJSON_BUILD_EXAMPLES "Build rapidjson examples." OFF)
option(RAPIDJSON_BUILD_TESTS "Build rapidjson perftests and unittests." OFF)
option(BUILD_SHARED_LIBS OFF)

include(CheckCCompilerFlag)

if(CMAKE_SYSTEM_PROCESSOR MATCHES "(x86)|(X86)|(amd64)|(AMD64)")
  set(X86 TRUE)
  message("Compiling on x86")
else()
  set(X86 FALSE)
endif()

if(CMAKE_SYSTEM_PROCESSOR MATCHES "(aarch64)|(AARCH64)|(arm64)|(ARM64)")
  set(ARM64 TRUE)
  message("Compiling on Arm64")
else()
  set(ARM64 FALSE)
endif()

set(SIMD_FLAG NULL)

if(ARM64 AND APPLE)
  message("Defining USE_NEON...")
  add_compile_definitions(USE_NEON)
  add_compile_definitions(SIMD_SUPPORT)
elseif(NOT ARM64)
  if(MSVC)
    set(SIMD_FLAG /arch:AVX)
  else()
    set(SIMD_FLAG -msse4.1)
  endif()
  check_c_compiler_flag(${SIMD_FLAG} HAS_SIMD)
else()
  message("Compiling on an unsupported Arm device! Good Luck!")
endif()

if (HAS_SIMD)
  message("Defining SIMD_SUPPORT...")
  add_compile_definitions(SIMD_SUPPORT)
  add_compile_options(${SIMD_FLAG})
endif ()

if (${CMAKE_BUILD_TYPE} MATCHES Debug AND VULKAN_VALIDATION)
  message("VALIDATION LAYERS: ON")
  add_compile_definitions(VULKAN_DEBUG)
endif ()

add_subdirectory(external/mio)
add_subdirectory(src/backend)
add_subdirectory(external/parallel-rdp)
add_subdirectory(external/unarr)
add_subdirectory(external/SDL)
add_subdirectory(external/cflags)
add_subdirectory(external/imgui)
add_subdirectory(external/mINI)
set(CAPSTONE_ARCHITECTURE_DEFAULT OFF)
set(CAPSTONE_MIPS_SUPPORT ON)
set(CAPSTONE_X86_SUPPORT ON)
add_subdirectory(external/capstone)

add_executable(kaizen
  src/frontend/main.cpp
  src/frontend/KaizenGui.hpp
  src/frontend/KaizenGui.cpp
  src/frontend/RenderWidget.cpp
  src/frontend/RenderWidget.hpp
  src/frontend/EmuThread.hpp
  src/frontend/EmuThread.cpp
  src/frontend/SettingsWindow.hpp
  src/frontend/SettingsWindow.cpp
  src/frontend/Settings/GeneralSettings.hpp
  src/frontend/Settings/GeneralSettings.cpp
  src/frontend/Settings/CPUSettings.hpp
  src/frontend/Settings/CPUSettings.cpp
  src/frontend/Settings/AudioSettings.hpp
  src/frontend/Settings/AudioSettings.cpp
  src/frontend/NativeWindow.hpp
  src/utils/Options.cpp
  src/utils/File.cpp
  src/frontend/Debugger.hpp
  src/frontend/Debugger.cpp)


if (WIN32)
  set(MIO_LIB mio::mio_full_winapi)
else()
  set(MIO_LIB mio::mio)
endif()

target_link_libraries(kaizen PUBLIC imgui SDL3::SDL3 SDL3::SDL3-static cflags::cflags ${MIO_LIB} parallel-rdp capstone backend)
target_compile_definitions(kaizen PUBLIC SDL_MAIN_HANDLED)

if (SANITIZERS)
  message("UBSAN AND ASAN: ON")
  target_compile_options(kaizen PUBLIC -fsanitize=undefined -fsanitize=address)
  target_link_options(kaizen PUBLIC -fsanitize=undefined -fsanitize=address)
endif ()

file(COPY resources/ DESTINATION ${PROJECT_BINARY_DIR}/resources/)
file(REMOVE
  ${PROJECT_BINARY_DIR}/resources/mario.png
  ${PROJECT_BINARY_DIR}/resources/shader.frag
  ${PROJECT_BINARY_DIR}/resources/shader.vert)