# - Find SDL2

# Find the SDL2 headers and libraries

#

# SDL2::SDL2 - Imported target to use for building a library

# SDL2::SDL2main - Imported interface target to use if you want SDL and SDLmain.

# SDL2_FOUND - True if SDL2 was found.

# SDL2_DYNAMIC - If we found a DLL version of SDL (meaning you might want to copy a DLL from SDL2::SDL2)

#

# Original Author:

# 2015 Ryan Pavlik <ryan.pavlik@gmail.com> <abiryan@ryand.net>

#

# Copyright Sensics, Inc. 2015.

# Distributed under the Boost Software License, Version 1.0.

# (See accompanying file LICENSE_1_0.txt or copy at

# http://www.boost.org/LICENSE_1_0.txt)

# Set up architectures (for windows) and prefixes (for mingw builds)

if(WIN32)

if(MINGW)

include(MinGWSearchPathExtras OPTIONAL)

if(MINGWSEARCH_TARGET_TRIPLE)

set(SDL2_PREFIX ${MINGWSEARCH_TARGET_TRIPLE})

endif()

endif()

if(CMAKE_SIZEOF_VOID_P EQUAL 8)

set(SDL2_LIB_PATH_SUFFIX lib/x64)

if(NOT MSVC AND NOT SDL2_PREFIX)

set(SDL2_PREFIX x86_64-w64-mingw32)

endif()

else()

set(SDL2_LIB_PATH_SUFFIX lib/x86)

if(NOT MSVC AND NOT SDL2_PREFIX)

set(SDL2_PREFIX i686-w64-mingw32)

endif()

endif()

endif()

if(SDL2_PREFIX)

set(SDL2_ORIGPREFIXPATH ${CMAKE_PREFIX_PATH})

if(SDL2_ROOT_DIR)

list(APPEND CMAKE_PREFIX_PATH "${SDL2_ROOT_DIR}")

endif()

if(CMAKE_PREFIX_PATH)

foreach(_prefix ${CMAKE_PREFIX_PATH})

list(APPEND CMAKE_PREFIX_PATH "${_prefix}/${SDL2_PREFIX}")

endforeach()

endif()

if(MINGWSEARCH_PREFIXES)

list(APPEND CMAKE_PREFIX_PATH ${MINGWSEARCH_PREFIXES})

endif()

endif()

# Invoke pkgconfig for hints

find_package(PkgConfig QUIET)

set(SDL2_INCLUDE_HINTS)

set(SDL2_LIB_HINTS)

if(PKG_CONFIG_FOUND)

pkg_search_module(SDL2PC QUIET sdl2)

if(SDL2PC_INCLUDE_DIRS)

set(SDL2_INCLUDE_HINTS ${SDL2PC_INCLUDE_DIRS})

endif()

if(SDL2PC_LIBRARY_DIRS)

set(SDL2_LIB_HINTS ${SDL2PC_LIBRARY_DIRS})

endif()

endif()

include(FindPackageHandleStandardArgs)

find_library(SDL2_LIBRARY

NAMES

SDL2

HINTS

${SDL2_LIB_HINTS}

PATHS

${SDL2_ROOT_DIR}

ENV SDL2DIR

PATH_SUFFIXES lib SDL2 ${SDL2_LIB_PATH_SUFFIX})

set(_sdl2_framework FALSE)

# Some special-casing if we've found/been given a framework.

# Handles whether we're given the library inside the framework or the framework itself.

if(APPLE AND "${SDL2_LIBRARY}" MATCHES "(/[^/]+)*.framework(/.*)?$")

set(_sdl2_framework TRUE)

set(SDL2_FRAMEWORK "${SDL2_LIBRARY}")

# Move up in the directory tree as required to get the framework directory.

while("${SDL2_FRAMEWORK}" MATCHES "(/[^/]+)*.framework(/.*)$" AND NOT "${SDL2_FRAMEWORK}" MATCHES "(/[^/]+)*.framework$")

get_filename_component(SDL2_FRAMEWORK "${SDL2_FRAMEWORK}" DIRECTORY)

endwhile()

if("${SDL2_FRAMEWORK}" MATCHES "(/[^/]+)*.framework$")

set(SDL2_FRAMEWORK_NAME ${CMAKE_MATCH_1})

# If we found a framework, do a search for the header ahead of time that will be more likely to get the framework header.

find_path(SDL2_INCLUDE_DIR

NAMES

SDL_haptic.h # this file was introduced with SDL2

HINTS

"${SDL2_FRAMEWORK}/Headers/")

else()

# For some reason we couldn't get the framework directory itself.

# Shouldn't happen, but might if something is weird.

unset(SDL2_FRAMEWORK)

endif()

endif()

find_path(SDL2_INCLUDE_DIR

NAMES

SDL_haptic.h # this file was introduced with SDL2

HINTS

${SDL2_INCLUDE_HINTS}

PATHS

${SDL2_ROOT_DIR}

ENV SDL2DIR

PATH_SUFFIXES include include/sdl2 include/SDL2 SDL2)

if(WIN32 AND SDL2_LIBRARY)

find_file(SDL2_RUNTIME_LIBRARY

NAMES

SDL2.dll

libSDL2.dll

HINTS

${SDL2_LIB_HINTS}

PATHS

${SDL2_ROOT_DIR}

ENV SDL2DIR

PATH_SUFFIXES bin lib ${SDL2_LIB_PATH_SUFFIX})

endif()

if(WIN32 OR ANDROID OR IOS OR (APPLE AND NOT _sdl2_framework))

set(SDL2_EXTRA_REQUIRED SDL2_SDLMAIN_LIBRARY)

find_library(SDL2_SDLMAIN_LIBRARY

NAMES

SDL2main

PATHS

${SDL2_ROOT_DIR}

ENV SDL2DIR

PATH_SUFFIXES lib ${SDL2_LIB_PATH_SUFFIX})

endif()

if(MINGW AND NOT SDL2PC_FOUND)

find_library(SDL2_MINGW_LIBRARY mingw32)

find_library(SDL2_MWINDOWS_LIBRARY mwindows)

endif()

if(SDL2_PREFIX)

# Restore things the way they used to be.

set(CMAKE_PREFIX_PATH ${SDL2_ORIGPREFIXPATH})

endif()

# handle the QUIETLY and REQUIRED arguments and set QUATLIB_FOUND to TRUE if

# all listed variables are TRUE

include(FindPackageHandleStandardArgs)

find_package_handle_standard_args(SDL2

DEFAULT_MSG

SDL2_LIBRARY

SDL2_INCLUDE_DIR

${SDL2_EXTRA_REQUIRED})

if(SDL2_FOUND)

if(NOT TARGET SDL2::SDL2)

# Create SDL2::SDL2

if(WIN32 AND SDL2_RUNTIME_LIBRARY)

set(SDL2_DYNAMIC TRUE)

add_library(SDL2::SDL2 SHARED IMPORTED)

set_target_properties(SDL2::SDL2

PROPERTIES

IMPORTED_IMPLIB "${SDL2_LIBRARY}"

IMPORTED_LOCATION "${SDL2_RUNTIME_LIBRARY}"

INTERFACE_INCLUDE_DIRECTORIES "${SDL2_INCLUDE_DIR}"

)

else()

add_library(SDL2::SDL2 UNKNOWN IMPORTED)

if(SDL2_FRAMEWORK AND SDL2_FRAMEWORK_NAME)

# Handle the case that SDL2 is a framework and we were able to decompose it above.

set_target_properties(SDL2::SDL2 PROPERTIES

IMPORTED_LOCATION "${SDL2_FRAMEWORK}/${SDL2_FRAMEWORK_NAME}")

elseif(_sdl2_framework AND SDL2_LIBRARY MATCHES "(/[^/]+)*.framework$")

# Handle the case that SDL2 is a framework and SDL_LIBRARY is just the framework itself.

# This takes the basename of the framework, without the extension,

# and sets it (as a child of the framework) as the imported location for the target.

# This is the library symlink inside of the framework.

set_target_properties(SDL2::SDL2 PROPERTIES

IMPORTED_LOCATION "${SDL2_LIBRARY}/${CMAKE_MATCH_1}")

else()

# Handle non-frameworks (including non-Mac), as well as the case that we're given the library inside of the framework

set_target_properties(SDL2::SDL2 PROPERTIES

IMPORTED_LOCATION "${SDL2_LIBRARY}")

endif()

set_target_properties(SDL2::SDL2

PROPERTIES

INTERFACE_INCLUDE_DIRECTORIES "${SDL2_INCLUDE_DIR}"

)

endif()

if(APPLE)

# Need Cocoa here, is always a framework

find_library(SDL2_COCOA_LIBRARY Cocoa)

list(APPEND SDL2_EXTRA_REQUIRED SDL2_COCOA_LIBRARY)

if(SDL2_COCOA_LIBRARY)

set_target_properties(SDL2::SDL2 PROPERTIES

IMPORTED_LINK_INTERFACE_LIBRARIES ${SDL2_COCOA_LIBRARY})

endif()

endif()

# Compute what to do with SDL2main

set(SDL2MAIN_LIBRARIES SDL2::SDL2)

add_library(SDL2::SDL2main INTERFACE IMPORTED)

if(SDL2_SDLMAIN_LIBRARY)

add_library(SDL2::SDL2main_real STATIC IMPORTED)

set_target_properties(SDL2::SDL2main_real

PROPERTIES

IMPORTED_LOCATION "${SDL2_SDLMAIN_LIBRARY}")

set(SDL2MAIN_LIBRARIES SDL2::SDL2main_real ${SDL2MAIN_LIBRARIES})

endif()

if(MINGW)

# MinGW requires some additional libraries to appear earlier in the link line.

if(SDL2PC_LIBRARIES)

# Use pkgconfig-suggested extra libraries if available.

list(REMOVE_ITEM SDL2PC_LIBRARIES SDL2main SDL2)

set(SDL2MAIN_LIBRARIES ${SDL2PC_LIBRARIES} ${SDL2MAIN_LIBRARIES})

else()

# fall back to extra libraries specified in pkg-config in

# an official binary distro of SDL2 for MinGW I downloaded

if(SDL2_MINGW_LIBRARY)

set(SDL2MAIN_LIBRARIES ${SDL2_MINGW_LIBRARY} ${SDL2MAIN_LIBRARIES})

endif()

if(SDL2_MWINDOWS_LIBRARY)

set(SDL2MAIN_LIBRARIES ${SDL2_MWINDOWS_LIBRARY} ${SDL2MAIN_LIBRARIES})

endif()

endif()

set_target_properties(SDL2::SDL2main

PROPERTIES

INTERFACE_COMPILE_DEFINITIONS "main=SDL_main")

endif()

set_target_properties(SDL2::SDL2main

PROPERTIES

INTERFACE_LINK_LIBRARIES "${SDL2MAIN_LIBRARIES}")

endif()

mark_as_advanced(SDL2_ROOT_DIR)

endif()

mark_as_advanced(SDL2_LIBRARY

SDL2_RUNTIME_LIBRARY

SDL2_INCLUDE_DIR

SDL2_SDLMAIN_LIBRARY

SDL2_COCOA_LIBRARY

SDL2_MINGW_LIBRARY

SDL2_MWINDOWS_LIBRARY)