cmake_minimum_required(VERSION 3.18)

include(TestBigEndian)
include(CheckLibraryExists)
include(CheckFunctionExists)
include(CheckCCompilerFlag)
include(FindPkgConfig)
include(CheckIncludeFile)

project(VkRunner LANGUAGES C)
set(VKRUNNER_VERSION 0.1)

TEST_BIG_ENDIAN(IS_BIG_ENDIAN)
if(IS_BIG_ENDIAN)
  set(PLATFORM_ENDIANNESS 1)
else()
  set(PLATFORM_ENDIANNESS 0)
endif()

if("x${CMAKE_C_COMPILER_ID}" STREQUAL "xMSVC")
  add_definitions("/W2 /wd4244")
else()
  foreach(FLAG -Wall -Wuninitialized -Wempty-body -Wformat
      -Wformat-security -Winit-self -Wundef
      -Wvla -Wpointer-arith -Wmissing-declarations)
    string(REPLACE "-" "_" FLAG_VAR "${FLAG}")
    CHECK_C_COMPILER_FLAG("${FLAG}" HAVE_FLAG_${FLAG_VAR})
    if(${HAVE_FLAG_${FLAG_VAR}})
      add_definitions("${FLAG}")
    endif()
  endforeach()
endif()

if(UNIX)
  set(NEED_LIBM true)
endif()

CHECK_FUNCTION_EXISTS(ffs HAVE_FFS)
if(HAVE_FFS)
  add_definitions(-DHAVE_FFS)
endif()

CHECK_FUNCTION_EXISTS(ffsl HAVE_FFSL)
if(HAVE_FFSL)
  add_definitions(-DHAVE_FFSL)
endif()

find_package(Vulkan)
if (NOT VULKAN_HEADER)
  pkg_check_modules(VULKAN vulkan)
  if(NOT Vulkan_FOUND)
    CHECK_INCLUDE_FILE(vulkan/vulkan.h HAVE_VULKAN_HEADER)
    if(NOT HAVE_VULKAN_HEADER)
      message(FATAL_ERROR
	"No vulkan pkg-config package nor vulkan header was found")
    endif()
  endif()
  set(VULKAN_HEADER "<vulkan/vulkan.h>")
endif()

configure_file(
  "${PROJECT_SOURCE_DIR}/config.h.in"
  "${PROJECT_BINARY_DIR}/config.h"
  )

configure_file(
  "${PROJECT_SOURCE_DIR}/vk-vulkan-header.h.in"
  "${PROJECT_BINARY_DIR}/vk-vulkan-header.h"
  )

add_subdirectory(vkrunner)
add_subdirectory(src)
