100 lines
3.9 KiB
CMake
100 lines
3.9 KiB
CMake
# Locate SDL_image library
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#
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# This module defines:
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#
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# ::
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#
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# SDL2_IMAGE_LIBRARIES, the name of the library to link against
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# SDL2_IMAGE_INCLUDE_DIRS, where to find the headers
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# SDL2_IMAGE_FOUND, if false, do not try to link against
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# SDL2_IMAGE_VERSION_STRING - human-readable string containing the version of SDL_image
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#
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#
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#
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# For backward compatibility the following variables are also set:
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#
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# ::
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#
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# SDLIMAGE_LIBRARY (same value as SDL2_IMAGE_LIBRARIES)
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# SDLIMAGE_INCLUDE_DIR (same value as SDL2_IMAGE_INCLUDE_DIRS)
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# SDLIMAGE_FOUND (same value as SDL2_IMAGE_FOUND)
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#
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#
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#
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# $SDLDIR is an environment variable that would correspond to the
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# ./configure --prefix=$SDLDIR used in building SDL.
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#
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# Created by Eric Wing. This was influenced by the FindSDL.cmake
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# module, but with modifications to recognize OS X frameworks and
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# additional Unix paths (FreeBSD, etc).
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#=============================================================================
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# Copyright 2005-2009 Kitware, Inc.
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# Copyright 2012 Benjamin Eikel
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#
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# Distributed under the OSI-approved BSD License (the "License");
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# see accompanying file Copyright.txt for details.
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#
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# This software is distributed WITHOUT ANY WARRANTY; without even the
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# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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# See the License for more information.
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#=============================================================================
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# (To distribute this file outside of CMake, substitute the full
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# License text for the above reference.)
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find_path(SDL2_IMAGE_INCLUDE_DIR SDL_image.h
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HINTS
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ENV SDL2IMAGEDIR
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ENV SDL2DIR
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PATH_SUFFIXES SDL2
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# path suffixes to search inside ENV{SDLDIR}
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include/SDL2 include
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PATHS ${SDL2_IMAGE_PATH}
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)
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if(CMAKE_SIZEOF_VOID_P EQUAL 8)
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set(VC_LIB_PATH_SUFFIX lib/x64)
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else()
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set(VC_LIB_PATH_SUFFIX lib/x86)
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endif()
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find_library(SDL2_IMAGE_LIBRARY
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NAMES SDL2_image
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HINTS
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ENV SDL2IMAGEDIR
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ENV SDL2DIR
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PATH_SUFFIXES lib ${VC_LIB_PATH_SUFFIX}
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PATHS ${SDL2_IMAGE_PATH}
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)
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if(SDL2_IMAGE_INCLUDE_DIR AND EXISTS "${SDL2_IMAGE_INCLUDE_DIR}/SDL_image.h")
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file(STRINGS "${SDL2_IMAGE_INCLUDE_DIR}/SDL_image.h" SDL2_IMAGE_VERSION_MAJOR_LINE REGEX "^#define[ \t]+SDL_IMAGE_MAJOR_VERSION[ \t]+[0-9]+$")
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file(STRINGS "${SDL2_IMAGE_INCLUDE_DIR}/SDL_image.h" SDL2_IMAGE_VERSION_MINOR_LINE REGEX "^#define[ \t]+SDL_IMAGE_MINOR_VERSION[ \t]+[0-9]+$")
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file(STRINGS "${SDL2_IMAGE_INCLUDE_DIR}/SDL_image.h" SDL2_IMAGE_VERSION_PATCH_LINE REGEX "^#define[ \t]+SDL_IMAGE_PATCHLEVEL[ \t]+[0-9]+$")
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string(REGEX REPLACE "^#define[ \t]+SDL_IMAGE_MAJOR_VERSION[ \t]+([0-9]+)$" "\\1" SDL2_IMAGE_VERSION_MAJOR "${SDL2_IMAGE_VERSION_MAJOR_LINE}")
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string(REGEX REPLACE "^#define[ \t]+SDL_IMAGE_MINOR_VERSION[ \t]+([0-9]+)$" "\\1" SDL2_IMAGE_VERSION_MINOR "${SDL2_IMAGE_VERSION_MINOR_LINE}")
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string(REGEX REPLACE "^#define[ \t]+SDL_IMAGE_PATCHLEVEL[ \t]+([0-9]+)$" "\\1" SDL2_IMAGE_VERSION_PATCH "${SDL2_IMAGE_VERSION_PATCH_LINE}")
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set(SDL2_IMAGE_VERSION_STRING ${SDL2_IMAGE_VERSION_MAJOR}.${SDL2_IMAGE_VERSION_MINOR}.${SDL2_IMAGE_VERSION_PATCH})
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unset(SDL2_IMAGE_VERSION_MAJOR_LINE)
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unset(SDL2_IMAGE_VERSION_MINOR_LINE)
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unset(SDL2_IMAGE_VERSION_PATCH_LINE)
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unset(SDL2_IMAGE_VERSION_MAJOR)
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unset(SDL2_IMAGE_VERSION_MINOR)
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unset(SDL2_IMAGE_VERSION_PATCH)
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endif()
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set(SDL2_IMAGE_LIBRARIES ${SDL2_IMAGE_LIBRARY})
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set(SDL2_IMAGE_INCLUDE_DIRS ${SDL2_IMAGE_INCLUDE_DIR})
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include(FindPackageHandleStandardArgs)
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FIND_PACKAGE_HANDLE_STANDARD_ARGS(SDL2_image
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REQUIRED_VARS SDL2_IMAGE_LIBRARIES SDL2_IMAGE_INCLUDE_DIRS
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VERSION_VAR SDL2_IMAGE_VERSION_STRING)
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# for backward compatibility
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set(SDLIMAGE_LIBRARY ${SDL2_IMAGE_LIBRARIES})
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set(SDLIMAGE_INCLUDE_DIR ${SDL2_IMAGE_INCLUDE_DIRS})
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set(SDLIMAGE_FOUND ${SDL2_IMAGE_FOUND})
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mark_as_advanced(SDL2_IMAGE_LIBRARY SDL2_IMAGE_INCLUDE_DIR)
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