FindSDL2_gfx.cmake 3.7 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. # based on https://trenki2.github.io/blog/2017/07/04/using-sdl2-image-with-cmake/
  4. #.rst:
  5. # FindSDL2_gfx
  6. # -------------
  7. #
  8. # Locate SDL2_gfx library
  9. #
  10. # This module defines:
  11. #
  12. # ::
  13. #
  14. # SDL2_GFX_LIBRARIES, the name of the library to link against
  15. # SDL2_GFX_INCLUDE_DIRS, where to find the headers
  16. # SDL2_GFX_FOUND, if false, do not try to link against
  17. # SDL2_GFX_VERSION_STRING - human-readable string containing the
  18. # version of SDL2_gfx
  19. #
  20. #
  21. #
  22. # For backward compatibility the following variables are also set:
  23. #
  24. # ::
  25. #
  26. # SDL2GFX_LIBRARY (same value as SDL2_GFX_LIBRARIES)
  27. # SDL2GFX_INCLUDE_DIR (same value as SDL2_GFX_INCLUDE_DIRS)
  28. # SDL2GFX_FOUND (same value as SDL2_GFX_FOUND)
  29. #
  30. #
  31. #
  32. # $SDLDIR is an environment variable that would correspond to the
  33. # ./configure --prefix=$SDLDIR used in building SDL.
  34. #
  35. # Created by Eric Wing. This was influenced by the FindSDL.cmake
  36. # module, but with modifications to recognize OS X frameworks and
  37. # additional Unix paths (FreeBSD, etc).
  38. if(NOT SDL2_GFX_INCLUDE_DIR AND SDL2GFX_INCLUDE_DIR)
  39. set(SDL2_GFX_INCLUDE_DIR ${SDL2GFX_INCLUDE_DIR} CACHE PATH "directory cache entry initialized from old variable name")
  40. endif()
  41. find_path(SDL2_GFX_INCLUDE_DIR SDL_image.h
  42. HINTS
  43. ENV SDL2GFXDIR
  44. ENV SDL2DIR
  45. ${SDL2_DIR}
  46. PATH_SUFFIXES SDL2
  47. # path suffixes to search inside ENV{SDL2DIR}
  48. include/SDL2 include
  49. )
  50. if(CMAKE_SIZEOF_VOID_P EQUAL 8)
  51. set(VC_LIB_PATH_SUFFIX lib/x64)
  52. else()
  53. set(VC_LIB_PATH_SUFFIX lib/x86)
  54. endif()
  55. if(NOT SDL2_GFX_LIBRARY AND SDL2GFX_LIBRARY)
  56. set(SDL2_GFX_LIBRARY ${SDL2GFX_LIBRARY} CACHE FILEPATH "file cache entry initialized from old variable name")
  57. endif()
  58. find_library(SDL2_GFX_LIBRARY
  59. NAMES SDL2_gfx
  60. HINTS
  61. ENV SDL2GFXDIR
  62. ENV SDL2DIR
  63. ${SDL2_DIR}
  64. PATH_SUFFIXES lib ${VC_LIB_PATH_SUFFIX}
  65. )
  66. if(SDL2_GFX_INCLUDE_DIR AND EXISTS "${SDL2_GFX_INCLUDE_DIR}/SDL2_gfx.h")
  67. file(STRINGS "${SDL2_GFX_INCLUDE_DIR}/SDL2_gfx.h" SDL2_GFX_VERSION_MAJOR_LINE REGEX "^#define[ \t]+SDL2_GFX_MAJOR_VERSION[ \t]+[0-9]+$")
  68. file(STRINGS "${SDL2_GFX_INCLUDE_DIR}/SDL2_gfx.h" SDL2_GFX_VERSION_MINOR_LINE REGEX "^#define[ \t]+SDL2_GFX_MINOR_VERSION[ \t]+[0-9]+$")
  69. file(STRINGS "${SDL2_GFX_INCLUDE_DIR}/SDL2_gfx.h" SDL2_GFX_VERSION_PATCH_LINE REGEX "^#define[ \t]+SDL2_GFX_PATCHLEVEL[ \t]+[0-9]+$")
  70. string(REGEX REPLACE "^#define[ \t]+SDL2_GFX_MAJOR_VERSION[ \t]+([0-9]+)$" "\\1" SDL2_GFX_VERSION_MAJOR "${SDL2_GFX_VERSION_MAJOR_LINE}")
  71. string(REGEX REPLACE "^#define[ \t]+SDL2_GFX_MINOR_VERSION[ \t]+([0-9]+)$" "\\1" SDL2_GFX_VERSION_MINOR "${SDL2_GFX_VERSION_MINOR_LINE}")
  72. string(REGEX REPLACE "^#define[ \t]+SDL2_GFX_PATCHLEVEL[ \t]+([0-9]+)$" "\\1" SDL2_GFX_VERSION_PATCH "${SDL2_GFX_VERSION_PATCH_LINE}")
  73. set(SDL2_GFX_VERSION_STRING ${SDL2_GFX_VERSION_MAJOR}.${SDL2_GFX_VERSION_MINOR}.${SDL2_GFX_VERSION_PATCH})
  74. unset(SDL2_GFX_VERSION_MAJOR_LINE)
  75. unset(SDL2_GFX_VERSION_MINOR_LINE)
  76. unset(SDL2_GFX_VERSION_PATCH_LINE)
  77. unset(SDL2_GFX_VERSION_MAJOR)
  78. unset(SDL2_GFX_VERSION_MINOR)
  79. unset(SDL2_GFX_VERSION_PATCH)
  80. endif()
  81. set(SDL2_GFX_LIBRARIES ${SDL2_GFX_LIBRARY})
  82. set(SDL2_GFX_INCLUDE_DIRS ${SDL2_GFX_INCLUDE_DIR})
  83. include(FindPackageHandleStandardArgs)
  84. FIND_PACKAGE_HANDLE_STANDARD_ARGS(SDL2_gfx
  85. REQUIRED_VARS SDL2_GFX_LIBRARIES SDL2_GFX_INCLUDE_DIRS
  86. VERSION_VAR SDL2_GFX_VERSION_STRING)
  87. # for backward compatibility
  88. set(SDL2GFX_LIBRARY ${SDL2_GFX_LIBRARIES})
  89. set(SDL2GFX_INCLUDE_DIR ${SDL2_GFX_INCLUDE_DIRS})
  90. set(SDL2GFX_FOUND ${SDL2_GFX_FOUND})
  91. mark_as_advanced(SDL2_GFX_LIBRARY SDL2_GFX_INCLUDE_DIR)