3 files changed, 371 insertions, 0 deletions

diff --git a/cmake/FindSDL2.cmake b/cmake/FindSDL2.cmake
new file mode 100644
index 0000000..464ca2d
--- /dev/null
+++ b/cmake/FindSDL2.cmake
@@ -0,0 +1,173 @@
+
+# This module defines
+# SDL2_LIBRARY, the name of the library to link against
+# SDL2_FOUND, if false, do not try to link to SDL2
+# SDL2_INCLUDE_DIR, where to find SDL.h
+#
+# This module responds to the the flag:
+# SDL2_BUILDING_LIBRARY
+# If this is defined, then no SDL2main will be linked in because
+# only applications need main().
+# Otherwise, it is assumed you are building an application and this
+# module will attempt to locate and set the the proper link flags
+# as part of the returned SDL2_LIBRARY variable.
+#
+# Don't forget to include SDLmain.h and SDLmain.m your project for the
+# OS X framework based version. (Other versions link to -lSDL2main which
+# this module will try to find on your behalf.) Also for OS X, this
+# module will automatically add the -framework Cocoa on your behalf.
+#
+#
+# Additional Note: If you see an empty SDL2_LIBRARY_TEMP in your configuration
+# and no SDL2_LIBRARY, it means CMake did not find your SDL2 library
+# (SDL2.dll, libsdl2.so, SDL2.framework, etc).
+# Set SDL2_LIBRARY_TEMP to point to your SDL2 library, and configure again.
+# Similarly, if you see an empty SDL2MAIN_LIBRARY, you should set this value
+# as appropriate. These values are used to generate the final SDL2_LIBRARY
+# variable, but when these values are unset, SDL2_LIBRARY does not get created.
+#
+#
+# $SDL2DIR is an environment variable that would
+# correspond to the ./configure --prefix=$SDL2DIR
+# used in building SDL2.
+# l.e.galup  9-20-02
+#
+# Modified by Eric Wing.
+# Added code to assist with automated building by using environmental variables
+# and providing a more controlled/consistent search behavior.
+# Added new modifications to recognize OS X frameworks and
+# additional Unix paths (FreeBSD, etc).
+# Also corrected the header search path to follow "proper" SDL guidelines.
+# Added a search for SDL2main which is needed by some platforms.
+# Added a search for threads which is needed by some platforms.
+# Added needed compile switches for MinGW.
+#
+# On OSX, this will prefer the Framework version (if found) over others.
+# People will have to manually change the cache values of
+# SDL2_LIBRARY to override this selection or set the CMake environment
+# CMAKE_INCLUDE_PATH to modify the search paths.
+#
+# Note that the header path has changed from SDL2/SDL.h to just SDL.h
+# This needed to change because "proper" SDL convention
+# is #include "SDL.h", not <SDL2/SDL.h>. This is done for portability
+# reasons because not all systems place things in SDL2/ (see FreeBSD).
+
+#=============================================================================
+# Copyright 2003-2009 Kitware, Inc.
+#
+# Distributed under the OSI-approved BSD License (the "License");
+# see accompanying file Copyright.txt for details.
+#
+# This software is distributed WITHOUT ANY WARRANTY; without even the
+# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+# See the License for more information.
+#=============================================================================
+# (To distribute this file outside of CMake, substitute the full
+#  License text for the above reference.)
+
+# message("<FindSDL2.cmake>")
+
+SET(SDL2_SEARCH_PATHS
+	~/Library/Frameworks
+	/Library/Frameworks
+	/usr/local
+	/usr
+	/sw # Fink
+	/opt/local # DarwinPorts
+	/opt/csw # Blastwave
+	/opt
+	${SDL2_PATH}
+)
+
+FIND_PATH(SDL2_INCLUDE_DIR SDL.h
+	HINTS
+	$ENV{SDL2DIR}
+	PATH_SUFFIXES include/SDL2 include
+	PATHS ${SDL2_SEARCH_PATHS}
+)
+
+if(CMAKE_SIZEOF_VOID_P EQUAL 8) 
+	set(PATH_SUFFIXES lib64 lib/x64 lib)
+else() 
+	set(PATH_SUFFIXES lib/x86 lib)
+endif() 
+
+FIND_LIBRARY(SDL2_LIBRARY_TEMP
+	NAMES SDL2
+	HINTS
+	$ENV{SDL2DIR}
+	PATH_SUFFIXES ${PATH_SUFFIXES}
+	PATHS ${SDL2_SEARCH_PATHS}
+)
+
+IF(NOT SDL2_BUILDING_LIBRARY)
+	IF(NOT ${SDL2_INCLUDE_DIR} MATCHES ".framework")
+		# Non-OS X framework versions expect you to also dynamically link to
+		# SDL2main. This is mainly for Windows and OS X. Other (Unix) platforms
+		# seem to provide SDL2main for compatibility even though they don't
+		# necessarily need it.
+		FIND_LIBRARY(SDL2MAIN_LIBRARY
+			NAMES SDL2main
+			HINTS
+			$ENV{SDL2DIR}
+			PATH_SUFFIXES ${PATH_SUFFIXES}
+			PATHS ${SDL2_SEARCH_PATHS}
+		)
+	ENDIF(NOT ${SDL2_INCLUDE_DIR} MATCHES ".framework")
+ENDIF(NOT SDL2_BUILDING_LIBRARY)
+
+# SDL2 may require threads on your system.
+# The Apple build may not need an explicit flag because one of the
+# frameworks may already provide it.
+# But for non-OSX systems, I will use the CMake Threads package.
+IF(NOT APPLE)
+	FIND_PACKAGE(Threads)
+ENDIF(NOT APPLE)
+
+# MinGW needs an additional link flag, -mwindows
+# It's total link flags should look like -lmingw32 -lSDL2main -lSDL2 -mwindows
+IF(MINGW)
+	SET(MINGW32_LIBRARY mingw32 "-mwindows" CACHE STRING "mwindows for MinGW")
+ENDIF(MINGW)
+
+IF(SDL2_LIBRARY_TEMP)
+	# For SDL2main
+	IF(NOT SDL2_BUILDING_LIBRARY)
+		IF(SDL2MAIN_LIBRARY)
+			SET(SDL2_LIBRARY_TEMP ${SDL2MAIN_LIBRARY} ${SDL2_LIBRARY_TEMP})
+		ENDIF(SDL2MAIN_LIBRARY)
+	ENDIF(NOT SDL2_BUILDING_LIBRARY)
+
+	# For OS X, SDL2 uses Cocoa as a backend so it must link to Cocoa.
+	# CMake doesn't display the -framework Cocoa string in the UI even
+	# though it actually is there if I modify a pre-used variable.
+	# I think it has something to do with the CACHE STRING.
+	# So I use a temporary variable until the end so I can set the
+	# "real" variable in one-shot.
+	IF(APPLE)
+		SET(SDL2_LIBRARY_TEMP ${SDL2_LIBRARY_TEMP} "-framework Cocoa")
+	ENDIF(APPLE)
+
+	# For threads, as mentioned Apple doesn't need this.
+	# In fact, there seems to be a problem if I used the Threads package
+	# and try using this line, so I'm just skipping it entirely for OS X.
+	IF(NOT APPLE)
+		SET(SDL2_LIBRARY_TEMP ${SDL2_LIBRARY_TEMP} ${CMAKE_THREAD_LIBS_INIT})
+	ENDIF(NOT APPLE)
+
+	# For MinGW library
+	IF(MINGW)
+		SET(SDL2_LIBRARY_TEMP ${MINGW32_LIBRARY} ${SDL2_LIBRARY_TEMP})
+	ENDIF(MINGW)
+
+	# Set the final string here so the GUI reflects the final state.
+	SET(SDL2_LIBRARY ${SDL2_LIBRARY_TEMP} CACHE STRING "Where the SDL2 Library can be found")
+	# Set the temp variable to INTERNAL so it is not seen in the CMake GUI
+	SET(SDL2_LIBRARY_TEMP "${SDL2_LIBRARY_TEMP}" CACHE INTERNAL "")
+ENDIF(SDL2_LIBRARY_TEMP)
+
+# message("</FindSDL2.cmake>")
+
+INCLUDE(FindPackageHandleStandardArgs)
+
+FIND_PACKAGE_HANDLE_STANDARD_ARGS(SDL2 REQUIRED_VARS SDL2_LIBRARY SDL2_INCLUDE_DIR)
diff --git a/cmake/FindSDL2_image.cmake b/cmake/FindSDL2_image.cmake
new file mode 100644
index 0000000..3f73762
--- /dev/null
+++ b/cmake/FindSDL2_image.cmake
@@ -0,0 +1,100 @@
+# Locate SDL_image library
+#
+# This module defines:
+#
+# ::
+#
+#   SDL2_IMAGE_LIBRARIES, the name of the library to link against
+#   SDL2_IMAGE_INCLUDE_DIRS, where to find the headers
+#   SDL2_IMAGE_FOUND, if false, do not try to link against
+#   SDL2_IMAGE_VERSION_STRING - human-readable string containing the version of SDL_image
+#
+#
+#
+# For backward compatibility the following variables are also set:
+#
+# ::
+#
+#   SDLIMAGE_LIBRARY (same value as SDL2_IMAGE_LIBRARIES)
+#   SDLIMAGE_INCLUDE_DIR (same value as SDL2_IMAGE_INCLUDE_DIRS)
+#   SDLIMAGE_FOUND (same value as SDL2_IMAGE_FOUND)
+#
+#
+#
+# $SDLDIR is an environment variable that would correspond to the
+# ./configure --prefix=$SDLDIR used in building SDL.
+#
+# Created by Eric Wing.  This was influenced by the FindSDL.cmake
+# module, but with modifications to recognize OS X frameworks and
+# additional Unix paths (FreeBSD, etc).
+
+#=============================================================================
+# Copyright 2005-2009 Kitware, Inc.
+# Copyright 2012 Benjamin Eikel
+#
+# Distributed under the OSI-approved BSD License (the "License");
+# see accompanying file Copyright.txt for details.
+#
+# This software is distributed WITHOUT ANY WARRANTY; without even the
+# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+# See the License for more information.
+#=============================================================================
+# (To distribute this file outside of CMake, substitute the full
+#  License text for the above reference.)
+
+find_path(SDL2_IMAGE_INCLUDE_DIR SDL_image.h
+        HINTS
+        ENV SDL2IMAGEDIR
+        ENV SDL2DIR
+        PATH_SUFFIXES SDL2
+        # path suffixes to search inside ENV{SDLDIR}
+        include/SDL2 include
+        PATHS ${SDL2_IMAGE_PATH}
+        )
+
+if(CMAKE_SIZEOF_VOID_P EQUAL 8)
+    set(VC_LIB_PATH_SUFFIX lib/x64)
+else()
+    set(VC_LIB_PATH_SUFFIX lib/x86)
+endif()
+
+find_library(SDL2_IMAGE_LIBRARY
+        NAMES SDL2_image
+        HINTS
+        ENV SDL2IMAGEDIR
+        ENV SDL2DIR
+        PATH_SUFFIXES lib ${VC_LIB_PATH_SUFFIX}
+        PATHS ${SDL2_IMAGE_PATH}
+        )
+
+if(SDL2_IMAGE_INCLUDE_DIR AND EXISTS "${SDL2_IMAGE_INCLUDE_DIR}/SDL_image.h")
+    file(STRINGS "${SDL2_IMAGE_INCLUDE_DIR}/SDL_image.h" SDL2_IMAGE_VERSION_MAJOR_LINE REGEX "^#define[ \t]+SDL_IMAGE_MAJOR_VERSION[ \t]+[0-9]+$")
+    file(STRINGS "${SDL2_IMAGE_INCLUDE_DIR}/SDL_image.h" SDL2_IMAGE_VERSION_MINOR_LINE REGEX "^#define[ \t]+SDL_IMAGE_MINOR_VERSION[ \t]+[0-9]+$")
+    file(STRINGS "${SDL2_IMAGE_INCLUDE_DIR}/SDL_image.h" SDL2_IMAGE_VERSION_PATCH_LINE REGEX "^#define[ \t]+SDL_IMAGE_PATCHLEVEL[ \t]+[0-9]+$")
+    string(REGEX REPLACE "^#define[ \t]+SDL_IMAGE_MAJOR_VERSION[ \t]+([0-9]+)$" "\\1" SDL2_IMAGE_VERSION_MAJOR "${SDL2_IMAGE_VERSION_MAJOR_LINE}")
+    string(REGEX REPLACE "^#define[ \t]+SDL_IMAGE_MINOR_VERSION[ \t]+([0-9]+)$" "\\1" SDL2_IMAGE_VERSION_MINOR "${SDL2_IMAGE_VERSION_MINOR_LINE}")
+    string(REGEX REPLACE "^#define[ \t]+SDL_IMAGE_PATCHLEVEL[ \t]+([0-9]+)$" "\\1" SDL2_IMAGE_VERSION_PATCH "${SDL2_IMAGE_VERSION_PATCH_LINE}")
+    set(SDL2_IMAGE_VERSION_STRING ${SDL2_IMAGE_VERSION_MAJOR}.${SDL2_IMAGE_VERSION_MINOR}.${SDL2_IMAGE_VERSION_PATCH})
+    unset(SDL2_IMAGE_VERSION_MAJOR_LINE)
+    unset(SDL2_IMAGE_VERSION_MINOR_LINE)
+    unset(SDL2_IMAGE_VERSION_PATCH_LINE)
+    unset(SDL2_IMAGE_VERSION_MAJOR)
+    unset(SDL2_IMAGE_VERSION_MINOR)
+    unset(SDL2_IMAGE_VERSION_PATCH)
+endif()
+
+set(SDL2_IMAGE_LIBRARIES ${SDL2_IMAGE_LIBRARY})
+set(SDL2_IMAGE_INCLUDE_DIRS ${SDL2_IMAGE_INCLUDE_DIR})
+
+include(FindPackageHandleStandardArgs)
+
+FIND_PACKAGE_HANDLE_STANDARD_ARGS(SDL2_image
+        REQUIRED_VARS SDL2_IMAGE_LIBRARIES SDL2_IMAGE_INCLUDE_DIRS
+        VERSION_VAR SDL2_IMAGE_VERSION_STRING)
+
+# for backward compatibility
+set(SDLIMAGE_LIBRARY ${SDL2_IMAGE_LIBRARIES})
+set(SDLIMAGE_INCLUDE_DIR ${SDL2_IMAGE_INCLUDE_DIRS})
+set(SDLIMAGE_FOUND ${SDL2_IMAGE_FOUND})
+
+mark_as_advanced(SDL2_IMAGE_LIBRARY SDL2_IMAGE_INCLUDE_DIR)
diff --git a/cmake/FindSDL2_ttf.cmake b/cmake/FindSDL2_ttf.cmake
new file mode 100644
index 0000000..8b2edcb
--- /dev/null
+++ b/cmake/FindSDL2_ttf.cmake
@@ -0,0 +1,98 @@
+# Locate SDL_ttf library
+#
+# This module defines:
+#
+# ::
+#
+#   SDL2_TTF_LIBRARIES, the name of the library to link against
+#   SDL2_TTF_INCLUDE_DIRS, where to find the headers
+#   SDL2_TTF_FOUND, if false, do not try to link against
+#   SDL2_TTF_VERSION_STRING - human-readable string containing the version of SDL_ttf
+#
+#
+#
+# For backward compatibility the following variables are also set:
+#
+# ::
+#
+#   SDLTTF_LIBRARY (same value as SDL2_TTF_LIBRARIES)
+#   SDLTTF_INCLUDE_DIR (same value as SDL2_TTF_INCLUDE_DIRS)
+#   SDLTTF_FOUND (same value as SDL2_TTF_FOUND)
+#
+#
+#
+# $SDLDIR is an environment variable that would correspond to the
+# ./configure --prefix=$SDLDIR used in building SDL.
+#
+# Created by Eric Wing.  This was influenced by the FindSDL.cmake
+# module, but with modifications to recognize OS X frameworks and
+# additional Unix paths (FreeBSD, etc).
+
+#=============================================================================
+# Copyright 2005-2009 Kitware, Inc.
+# Copyright 2012 Benjamin Eikel
+#
+# Distributed under the OSI-approved BSD License (the "License");
+# see accompanying file Copyright.txt for details.
+#
+# This software is distributed WITHOUT ANY WARRANTY; without even the
+# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+# See the License for more information.
+#=============================================================================
+# (To distribute this file outside of CMake, substitute the full
+#  License text for the above reference.)
+
+find_path(SDL2_TTF_INCLUDE_DIR SDL_ttf.h
+        HINTS
+        ENV SDL2TTFDIR
+        ENV SDL2DIR
+        PATH_SUFFIXES SDL2
+        # path suffixes to search inside ENV{SDLDIR}
+        include/SDL2 include
+        PATHS ${SDL2_TTF_PATH}
+        )
+
+if (CMAKE_SIZEOF_VOID_P EQUAL 8)
+    set(VC_LIB_PATH_SUFFIX lib/x64)
+else ()
+    set(VC_LIB_PATH_SUFFIX lib/x86)
+endif ()
+
+find_library(SDL2_TTF_LIBRARY
+        NAMES SDL2_ttf
+        HINTS
+        ENV SDL2TTFDIR
+        ENV SDL2DIR
+        PATH_SUFFIXES lib ${VC_LIB_PATH_SUFFIX}
+        PATHS ${SDL2_TTF_PATH}
+        )
+
+if (SDL2_TTF_INCLUDE_DIR AND EXISTS "${SDL2_TTF_INCLUDE_DIR}/SDL_ttf.h")
+    file(STRINGS "${SDL2_TTF_INCLUDE_DIR}/SDL_ttf.h" SDL2_TTF_VERSION_MAJOR_LINE REGEX "^#define[ \t]+SDL_TTF_MAJOR_VERSION[ \t]+[0-9]+$")
+    file(STRINGS "${SDL2_TTF_INCLUDE_DIR}/SDL_ttf.h" SDL2_TTF_VERSION_MINOR_LINE REGEX "^#define[ \t]+SDL_TTF_MINOR_VERSION[ \t]+[0-9]+$")
+    file(STRINGS "${SDL2_TTF_INCLUDE_DIR}/SDL_ttf.h" SDL2_TTF_VERSION_PATCH_LINE REGEX "^#define[ \t]+SDL_TTF_PATCHLEVEL[ \t]+[0-9]+$")
+    string(REGEX REPLACE "^#define[ \t]+SDL_TTF_MAJOR_VERSION[ \t]+([0-9]+)$" "\\1" SDL2_TTF_VERSION_MAJOR "${SDL2_TTF_VERSION_MAJOR_LINE}")
+    string(REGEX REPLACE "^#define[ \t]+SDL_TTF_MINOR_VERSION[ \t]+([0-9]+)$" "\\1" SDL2_TTF_VERSION_MINOR "${SDL2_TTF_VERSION_MINOR_LINE}")
+    string(REGEX REPLACE "^#define[ \t]+SDL_TTF_PATCHLEVEL[ \t]+([0-9]+)$" "\\1" SDL2_TTF_VERSION_PATCH "${SDL2_TTF_VERSION_PATCH_LINE}")
+    set(SDL2_TTF_VERSION_STRING ${SDL2_TTF_VERSION_MAJOR}.${SDL2_TTF_VERSION_MINOR}.${SDL2_TTF_VERSION_PATCH})
+    unset(SDL2_TTF_VERSION_MAJOR_LINE)
+    unset(SDL2_TTF_VERSION_MINOR_LINE)
+    unset(SDL2_TTF_VERSION_PATCH_LINE)
+    unset(SDL2_TTF_VERSION_MAJOR)
+    unset(SDL2_TTF_VERSION_MINOR)
+    unset(SDL2_TTF_VERSION_PATCH)
+endif ()
+
+set(SDL2_TTF_LIBRARIES ${SDL2_TTF_LIBRARY})
+set(SDL2_TTF_INCLUDE_DIRS ${SDL2_TTF_INCLUDE_DIR})
+
+include(FindPackageHandleStandardArgs)
+
+FIND_PACKAGE_HANDLE_STANDARD_ARGS(SDL2_ttf
+        REQUIRED_VARS SDL2_TTF_LIBRARIES SDL2_TTF_INCLUDE_DIRS
+        VERSION_VAR SDL2_TTF_VERSION_STRING)
+
+# for backward compatibility
+set(SDLTTF_LIBRARY ${SDL2_TTF_LIBRARIES})
+set(SDLTTF_INCLUDE_DIR ${SDL2_TTF_INCLUDE_DIRS})
+set(SDLTTF_FOUND ${SDL2_TTF_FOUND})