diff --git a/FindSDL2_image.cmake b/FindSDL2_image.cmake index e687b49..f36b110 100644 --- a/FindSDL2_image.cmake +++ b/FindSDL2_image.cmake @@ -2,52 +2,99 @@ # file Copyright.txt or https://cmake.org/licensing for details. #[=======================================================================[.rst: -FindSDL_image -------------- +FindSDL2_image +-------------- -Locate SDL_image library +Locate SDL2_image library -This module defines: +This module will set the following variables in your project: :: - SDL_IMAGE_LIBRARIES, the name of the library to link against - SDL_IMAGE_INCLUDE_DIRS, where to find the headers - SDL_IMAGE_FOUND, if false, do not try to link against - SDL_IMAGE_VERSION_STRING - human-readable string containing the - version of SDL_image + 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 SDL2_image -For backward compatibility the following variables are also set: +This module responds to the following cache variables: :: - SDLIMAGE_LIBRARY (same value as SDL_IMAGE_LIBRARIES) - SDLIMAGE_INCLUDE_DIR (same value as SDL_IMAGE_INCLUDE_DIRS) - SDLIMAGE_FOUND (same value as SDL_IMAGE_FOUND) + SDL2_IMAGE_PATH + Set a custom SDL2_image Library path (default: empty) + + SDL2_IMAGE_NO_DEFAULT_PATH + Disable search SDL2_image Library in default path. + If SDL2_IMAGE_PATH (default: ON) + Else (default: OFF) + + SDL2_IMAGE_INCLUDE_DIR + SDL2_image headers path. + + SDL2_IMAGE_LIBRARY + SDL2_image Library (.dll, .so, .a, etc) path. + + +Additional Note: If you see an empty SDL2_IMAGE_LIBRARY in your project +configuration, it means CMake did not find your SDL2_image library +(SDL2_image.dll, libsdl2_image.so, etc). Set SDL2_IMAGE_LIBRARY to point +to your SDL2_image library, and configure again. This value is used to +generate the final SDL2_IMAGE_LIBRARIES variable, but when this value is +unset, SDL2_IMAGE_LIBRARIES does not get created. + + +$SDL2IMAGEDIR is an environment variable that would correspond to the +./configure --prefix=$SDL2IMAGEDIR used in building SDL2_image. + +$SDL2DIR is an environment variable that would correspond to the +./configure --prefix=$SDL2DIR used in building SDL2. -$SDLDIR is an environment variable that would correspond to the -./configure --prefix=$SDLDIR used in building SDL. +Created by Amine Ben Hassouna: + Adapt FindSDL_image.cmake to SDL2_image (FindSDL2_image.cmake). + Add cache variables for more flexibility: + SDL2_IMAGE_PATH, SDL2_IMAGE_NO_DEFAULT_PATH (for details, see doc above). -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). +Original FindSDL_image.cmake module: + 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). #]=======================================================================] -if(NOT SDL_IMAGE_INCLUDE_DIR AND SDLIMAGE_INCLUDE_DIR) - set(SDL_IMAGE_INCLUDE_DIR ${SDLIMAGE_INCLUDE_DIR} CACHE PATH "directory cache -entry initialized from old variable name") +# Define options for searching SDL2_image Library in a custom path + +set(SDL2_IMAGE_PATH "" CACHE STRING "Custom SDL2_image Library path") + +set(_SDL2_IMAGE_NO_DEFAULT_PATH OFF) +if(SDL2_IMAGE_PATH) + set(_SDL2_IMAGE_NO_DEFAULT_PATH ON) endif() -find_path(SDL_IMAGE_INCLUDE_DIR SDL_image.h + +set(SDL2_IMAGE_NO_DEFAULT_PATH ${_SDL2_IMAGE_NO_DEFAULT_PATH} + CACHE BOOL "Disable search SDL2_image Library in default path") +unset(_SDL2_IMAGE_NO_DEFAULT_PATH) + +set(SDL2_IMAGE_NO_DEFAULT_PATH_CMD) +if(SDL2_IMAGE_NO_DEFAULT_PATH) + set(SDL2_IMAGE_NO_DEFAULT_PATH_CMD NO_DEFAULT_PATH) +endif() + +# Search for the SDL2_image include directory +find_path(SDL2_IMAGE_INCLUDE_DIR SDL_image.h HINTS - ENV SDLIMAGEDIR - ENV SDLDIR - PATH_SUFFIXES SDL - # path suffixes to search inside ENV{SDLDIR} - include/SDL include/SDL12 include/SDL11 include + ENV SDL2IMAGEDIR + ENV SDL2DIR + ${SDL2_IMAGE_NO_DEFAULT_PATH_CMD} + PATH_SUFFIXES SDL2 + # path suffixes to search inside ENV{SDL2DIR} + # and ENV{SDL2IMAGEDIR} + include/SDL2 include + PATHS ${SDL2_IMAGE_PATH} + DOC "Where the SDL2_image headers can be found" ) if(CMAKE_SIZEOF_VOID_P EQUAL 8) @@ -56,46 +103,47 @@ else() set(VC_LIB_PATH_SUFFIX lib/x86) endif() -if(NOT SDL_IMAGE_LIBRARY AND SDLIMAGE_LIBRARY) - set(SDL_IMAGE_LIBRARY ${SDLIMAGE_LIBRARY} CACHE FILEPATH "file cache entry -initialized from old variable name") -endif() -find_library(SDL_IMAGE_LIBRARY - NAMES SDL_image +# Search for the SDL2_image library +find_library(SDL2_IMAGE_LIBRARY + NAMES SDL2_image HINTS - ENV SDLIMAGEDIR - ENV SDLDIR + ENV SDL2IMAGEDIR + ENV SDL2DIR + ${SDL2_IMAGE_NO_DEFAULT_PATH_CMD} PATH_SUFFIXES lib ${VC_LIB_PATH_SUFFIX} + PATHS ${SDL2_IMAGE_PATH} + DOC "Where the SDL2_image Library can be found" ) -if(SDL_IMAGE_INCLUDE_DIR AND EXISTS "${SDL_IMAGE_INCLUDE_DIR}/SDL_image.h") - file(STRINGS "${SDL_IMAGE_INCLUDE_DIR}/SDL_image.h" SDL_IMAGE_VERSION_MAJOR_LINE REGEX "^#define[ \t]+SDL_IMAGE_MAJOR_VERSION[ \t]+[0-9]+$") - file(STRINGS "${SDL_IMAGE_INCLUDE_DIR}/SDL_image.h" SDL_IMAGE_VERSION_MINOR_LINE REGEX "^#define[ \t]+SDL_IMAGE_MINOR_VERSION[ \t]+[0-9]+$") - file(STRINGS "${SDL_IMAGE_INCLUDE_DIR}/SDL_image.h" SDL_IMAGE_VERSION_PATCH_LINE REGEX "^#define[ \t]+SDL_IMAGE_PATCHLEVEL[ \t]+[0-9]+$") - string(REGEX REPLACE "^#define[ \t]+SDL_IMAGE_MAJOR_VERSION[ \t]+([0-9]+)$" "\\1" SDL_IMAGE_VERSION_MAJOR "${SDL_IMAGE_VERSION_MAJOR_LINE}") - string(REGEX REPLACE "^#define[ \t]+SDL_IMAGE_MINOR_VERSION[ \t]+([0-9]+)$" "\\1" SDL_IMAGE_VERSION_MINOR "${SDL_IMAGE_VERSION_MINOR_LINE}") - string(REGEX REPLACE "^#define[ \t]+SDL_IMAGE_PATCHLEVEL[ \t]+([0-9]+)$" "\\1" SDL_IMAGE_VERSION_PATCH "${SDL_IMAGE_VERSION_PATCH_LINE}") - set(SDL_IMAGE_VERSION_STRING ${SDL_IMAGE_VERSION_MAJOR}.${SDL_IMAGE_VERSION_MINOR}.${SDL_IMAGE_VERSION_PATCH}) - unset(SDL_IMAGE_VERSION_MAJOR_LINE) - unset(SDL_IMAGE_VERSION_MINOR_LINE) - unset(SDL_IMAGE_VERSION_PATCH_LINE) - unset(SDL_IMAGE_VERSION_MAJOR) - unset(SDL_IMAGE_VERSION_MINOR) - unset(SDL_IMAGE_VERSION_PATCH) +# Read SDL2_image version +if(SDL2_IMAGE_INCLUDE_DIR AND EXISTS "${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(SDL_IMAGE_LIBRARIES ${SDL_IMAGE_LIBRARY}) -set(SDL_IMAGE_INCLUDE_DIRS ${SDL_IMAGE_INCLUDE_DIR}) +set(SDL2_IMAGE_LIBRARIES ${SDL2_IMAGE_LIBRARY}) +set(SDL2_IMAGE_INCLUDE_DIRS ${SDL2_IMAGE_INCLUDE_DIR}) include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake) -FIND_PACKAGE_HANDLE_STANDARD_ARGS(SDL_image - REQUIRED_VARS SDL_IMAGE_LIBRARIES SDL_IMAGE_INCLUDE_DIRS - VERSION_VAR SDL_IMAGE_VERSION_STRING) +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 ${SDL_IMAGE_LIBRARIES}) -set(SDLIMAGE_INCLUDE_DIR ${SDL_IMAGE_INCLUDE_DIRS}) -set(SDLIMAGE_FOUND ${SDL_IMAGE_FOUND}) -mark_as_advanced(SDL_IMAGE_LIBRARY SDL_IMAGE_INCLUDE_DIR) +mark_as_advanced(SDL2_IMAGE_PATH + SDL2_IMAGE_NO_DEFAULT_PATH + SDL2_IMAGE_LIBRARY + SDL2_IMAGE_INCLUDE_DIR) +