FindSDL2_image.cmake 8.7 KB

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  1. # Distributed under the OSI-approved BSD 3-Clause License. See accompanying
  2. # file Copyright.txt or https://cmake.org/licensing for details.
  3. # Copyright 2019 Amine Ben Hassouna <[email protected]>
  4. # Copyright 2000-2019 Kitware, Inc. and Contributors
  5. # All rights reserved.
  6. # Redistribution and use in source and binary forms, with or without
  7. # modification, are permitted provided that the following conditions
  8. # are met:
  9. # * Redistributions of source code must retain the above copyright
  10. # notice, this list of conditions and the following disclaimer.
  11. # * Redistributions in binary form must reproduce the above copyright
  12. # notice, this list of conditions and the following disclaimer in the
  13. # documentation and/or other materials provided with the distribution.
  14. # * Neither the name of Kitware, Inc. nor the names of Contributors
  15. # may be used to endorse or promote products derived from this
  16. # software without specific prior written permission.
  17. # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  18. # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  19. # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  20. # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  21. # HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  22. # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  23. # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  24. # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  25. # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  26. # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  27. # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28. #[=======================================================================[.rst:
  29. FindSDL2_image
  30. --------------
  31. Locate SDL2_image library
  32. This module defines the following 'IMPORTED' target:
  33. ::
  34. SDL2::Image
  35. The SDL2_image library, if found.
  36. Have SDL2::SDL2 as a link dependency.
  37. This module will set the following variables in your project:
  38. ::
  39. SDL2_IMAGE_LIBRARIES, the name of the library to link against
  40. SDL2_IMAGE_INCLUDE_DIRS, where to find the headers
  41. SDL2_IMAGE_FOUND, if false, do not try to link against
  42. SDL2_IMAGE_VERSION_STRING - human-readable string containing the
  43. version of SDL2_image
  44. This module responds to the following cache variables:
  45. ::
  46. SDL2_IMAGE_PATH
  47. Set a custom SDL2_image Library path (default: empty)
  48. SDL2_IMAGE_NO_DEFAULT_PATH
  49. Disable search SDL2_image Library in default path.
  50. If SDL2_IMAGE_PATH (default: ON)
  51. Else (default: OFF)
  52. SDL2_IMAGE_INCLUDE_DIR
  53. SDL2_image headers path.
  54. SDL2_IMAGE_LIBRARY
  55. SDL2_image Library (.dll, .so, .a, etc) path.
  56. Additional Note: If you see an empty SDL2_IMAGE_LIBRARY in your project
  57. configuration, it means CMake did not find your SDL2_image library
  58. (SDL2_image.dll, libsdl2_image.so, etc). Set SDL2_IMAGE_LIBRARY to point
  59. to your SDL2_image library, and configure again. This value is used to
  60. generate the final SDL2_IMAGE_LIBRARIES variable and the SDL2::Image target,
  61. but when this value is unset, SDL2_IMAGE_LIBRARIES and SDL2::Image does not
  62. get created.
  63. $SDL2IMAGEDIR is an environment variable that would correspond to the
  64. ./configure --prefix=$SDL2IMAGEDIR used in building SDL2_image.
  65. $SDL2DIR is an environment variable that would correspond to the
  66. ./configure --prefix=$SDL2DIR used in building SDL2.
  67. Created by Amine Ben Hassouna:
  68. Adapt FindSDL_image.cmake to SDL2_image (FindSDL2_image.cmake).
  69. Add cache variables for more flexibility:
  70. SDL2_IMAGE_PATH, SDL2_IMAGE_NO_DEFAULT_PATH (for details, see doc above).
  71. Add SDL2 as a required dependency.
  72. Modernize the FindSDL2_image.cmake module by creating a specific target:
  73. SDL2::Image (for details, see doc above).
  74. Original FindSDL_image.cmake module:
  75. Created by Eric Wing. This was influenced by the FindSDL.cmake
  76. module, but with modifications to recognize OS X frameworks and
  77. additional Unix paths (FreeBSD, etc).
  78. #]=======================================================================]
  79. # SDL2 Library required
  80. find_package(SDL2 QUIET)
  81. if(NOT SDL2_FOUND)
  82. set(SDL2_IMAGE_SDL2_NOT_FOUND "Could NOT find SDL2 (SDL2 is required by SDL2_image).")
  83. if(SDL2_image_FIND_REQUIRED)
  84. message(FATAL_ERROR ${SDL2_IMAGE_SDL2_NOT_FOUND})
  85. else()
  86. if(NOT SDL2_image_FIND_QUIETLY)
  87. message(STATUS ${SDL2_IMAGE_SDL2_NOT_FOUND})
  88. endif()
  89. return()
  90. endif()
  91. unset(SDL2_IMAGE_SDL2_NOT_FOUND)
  92. endif()
  93. #Try config mode first - conan hack
  94. include(FindPackageHandleStandardArgs)
  95. find_package(sdl_image CONFIG QUIET)
  96. if(TARGET sdl_image::sdl_image)
  97. add_library(SDL2::Image ALIAS sdl_image::sdl_image)
  98. find_package_handle_standard_args(SDL2_image
  99. REQUIRED_VARS sdl_image_LIBRARIES sdl_image_INCLUDE_DIRS
  100. VERSION_VAR sdl_image_VERSION_STRING)
  101. return()
  102. endif()
  103. # Define options for searching SDL2_image Library in a custom path
  104. set(SDL2_IMAGE_PATH "" CACHE STRING "Custom SDL2_image Library path")
  105. set(_SDL2_IMAGE_NO_DEFAULT_PATH OFF)
  106. if(SDL2_IMAGE_PATH)
  107. set(_SDL2_IMAGE_NO_DEFAULT_PATH ON)
  108. endif()
  109. set(SDL2_IMAGE_NO_DEFAULT_PATH ${_SDL2_IMAGE_NO_DEFAULT_PATH}
  110. CACHE BOOL "Disable search SDL2_image Library in default path")
  111. unset(_SDL2_IMAGE_NO_DEFAULT_PATH)
  112. set(SDL2_IMAGE_NO_DEFAULT_PATH_CMD)
  113. if(SDL2_IMAGE_NO_DEFAULT_PATH)
  114. set(SDL2_IMAGE_NO_DEFAULT_PATH_CMD NO_DEFAULT_PATH)
  115. endif()
  116. # Search for the SDL2_image include directory
  117. find_path(SDL2_IMAGE_INCLUDE_DIR SDL_image.h
  118. HINTS
  119. ENV SDL2IMAGEDIR
  120. ENV SDL2DIR
  121. ${SDL2_IMAGE_NO_DEFAULT_PATH_CMD}
  122. PATH_SUFFIXES SDL2
  123. # path suffixes to search inside ENV{SDL2DIR}
  124. # and ENV{SDL2IMAGEDIR}
  125. include/SDL2 include
  126. PATHS ${SDL2_IMAGE_PATH}
  127. DOC "Where the SDL2_image headers can be found"
  128. )
  129. if(CMAKE_SIZEOF_VOID_P EQUAL 8)
  130. set(VC_LIB_PATH_SUFFIX lib/x64)
  131. else()
  132. set(VC_LIB_PATH_SUFFIX lib/x86)
  133. endif()
  134. # Search for the SDL2_image library
  135. find_library(SDL2_IMAGE_LIBRARY
  136. NAMES SDL2_image
  137. HINTS
  138. ENV SDL2IMAGEDIR
  139. ENV SDL2DIR
  140. ${SDL2_IMAGE_NO_DEFAULT_PATH_CMD}
  141. PATH_SUFFIXES lib ${VC_LIB_PATH_SUFFIX}
  142. PATHS ${SDL2_IMAGE_PATH}
  143. DOC "Where the SDL2_image Library can be found"
  144. )
  145. # Read SDL2_image version
  146. if(SDL2_IMAGE_INCLUDE_DIR AND EXISTS "${SDL2_IMAGE_INCLUDE_DIR}/SDL_image.h")
  147. file(STRINGS "${SDL2_IMAGE_INCLUDE_DIR}/SDL_image.h" SDL2_IMAGE_VERSION_MAJOR_LINE REGEX "^#define[ \t]+SDL_IMAGE_MAJOR_VERSION[ \t]+[0-9]+$")
  148. file(STRINGS "${SDL2_IMAGE_INCLUDE_DIR}/SDL_image.h" SDL2_IMAGE_VERSION_MINOR_LINE REGEX "^#define[ \t]+SDL_IMAGE_MINOR_VERSION[ \t]+[0-9]+$")
  149. file(STRINGS "${SDL2_IMAGE_INCLUDE_DIR}/SDL_image.h" SDL2_IMAGE_VERSION_PATCH_LINE REGEX "^#define[ \t]+SDL_IMAGE_PATCHLEVEL[ \t]+[0-9]+$")
  150. string(REGEX REPLACE "^#define[ \t]+SDL_IMAGE_MAJOR_VERSION[ \t]+([0-9]+)$" "\\1" SDL2_IMAGE_VERSION_MAJOR "${SDL2_IMAGE_VERSION_MAJOR_LINE}")
  151. string(REGEX REPLACE "^#define[ \t]+SDL_IMAGE_MINOR_VERSION[ \t]+([0-9]+)$" "\\1" SDL2_IMAGE_VERSION_MINOR "${SDL2_IMAGE_VERSION_MINOR_LINE}")
  152. string(REGEX REPLACE "^#define[ \t]+SDL_IMAGE_PATCHLEVEL[ \t]+([0-9]+)$" "\\1" SDL2_IMAGE_VERSION_PATCH "${SDL2_IMAGE_VERSION_PATCH_LINE}")
  153. set(SDL2_IMAGE_VERSION_STRING ${SDL2_IMAGE_VERSION_MAJOR}.${SDL2_IMAGE_VERSION_MINOR}.${SDL2_IMAGE_VERSION_PATCH})
  154. unset(SDL2_IMAGE_VERSION_MAJOR_LINE)
  155. unset(SDL2_IMAGE_VERSION_MINOR_LINE)
  156. unset(SDL2_IMAGE_VERSION_PATCH_LINE)
  157. unset(SDL2_IMAGE_VERSION_MAJOR)
  158. unset(SDL2_IMAGE_VERSION_MINOR)
  159. unset(SDL2_IMAGE_VERSION_PATCH)
  160. endif()
  161. set(SDL2_IMAGE_LIBRARIES ${SDL2_IMAGE_LIBRARY})
  162. set(SDL2_IMAGE_INCLUDE_DIRS ${SDL2_IMAGE_INCLUDE_DIR})
  163. FIND_PACKAGE_HANDLE_STANDARD_ARGS(SDL2_image
  164. REQUIRED_VARS SDL2_IMAGE_LIBRARIES SDL2_IMAGE_INCLUDE_DIRS
  165. VERSION_VAR SDL2_IMAGE_VERSION_STRING)
  166. mark_as_advanced(SDL2_IMAGE_PATH
  167. SDL2_IMAGE_NO_DEFAULT_PATH
  168. SDL2_IMAGE_LIBRARY
  169. SDL2_IMAGE_INCLUDE_DIR)
  170. if(SDL2_IMAGE_FOUND)
  171. # SDL2::Image target
  172. if(SDL2_IMAGE_LIBRARY AND NOT TARGET SDL2::Image)
  173. add_library(SDL2::Image UNKNOWN IMPORTED)
  174. set_target_properties(SDL2::Image PROPERTIES
  175. IMPORTED_LOCATION "${SDL2_IMAGE_LIBRARY}"
  176. INTERFACE_INCLUDE_DIRECTORIES "${SDL2_IMAGE_INCLUDE_DIR}"
  177. INTERFACE_LINK_LIBRARIES SDL2::SDL2)
  178. if (APPLE_IOS)
  179. target_link_libraries(SDL2::Image INTERFACE
  180. "-framework CoreGraphics"
  181. "-framework Foundation"
  182. "-framework ImageIO"
  183. "-framework MobileCoreServices"
  184. "-framework UIKit"
  185. )
  186. endif()
  187. endif()
  188. endif()