cmake/OpenCVFindOpenEXR.cmake

   1 # The script is taken from http://code.google.com/p/nvidia-texture-tools/
   2
   3 #
   4 # Try to find OpenEXR's libraries, and include path.
   5 # Once done this will define:
   6 #
   7 # OPENEXR_FOUND = OpenEXR found.
   8 # OPENEXR_INCLUDE_PATHS = OpenEXR include directories.
   9 # OPENEXR_LIBRARIES = libraries that are needed to use OpenEXR.
  10 #
  11
  12 SET(OPENEXR_LIBRARIES "")
  13 SET(OPENEXR_LIBSEARCH_SUFFIXES "")
  14 file(TO_CMAKE_PATH "$ENV{ProgramFiles}" ProgramFiles_ENV_PATH)
  15
  16 if(WIN32)
  17     SET(OPENEXR_ROOT "C:/Deploy" CACHE STRING "Path to the OpenEXR \"Deploy\" folder")
  18     if(X86_64)
  19         SET(OPENEXR_LIBSEARCH_SUFFIXES x64/Release x64 x64/Debug)
  20     elseif(MSVC)
  21         SET(OPENEXR_LIBSEARCH_SUFFIXES Win32/Release Win32 Win32/Debug)
  22     endif()
  23 endif()
  24
  25 SET(SEARCH_PATHS
  26     "${OPENEXR_ROOT}"
  27     /usr
  28     /usr/local
  29     /sw
  30     /opt
  31     "${ProgramFiles_ENV_PATH}/OpenEXR")
  32
  33 MACRO(FIND_OPENEXR_LIBRARY LIBRARY_NAME LIBRARY_SUFFIX)
  34     string(TOUPPER "${LIBRARY_NAME}" LIBRARY_NAME_UPPER)
  35     FIND_LIBRARY(OPENEXR_${LIBRARY_NAME_UPPER}_LIBRARY
  36         NAMES ${LIBRARY_NAME}${LIBRARY_SUFFIX}
  37         PATH_SUFFIXES ${OPENEXR_LIBSEARCH_SUFFIXES}
  38         NO_DEFAULT_PATH
  39         PATHS "${SEARCH_PATH}/lib" "${SEARCH_PATH}/lib/static")
  40 ENDMACRO()
  41
  42 FOREACH(SEARCH_PATH ${SEARCH_PATHS})
  43     FIND_PATH(OPENEXR_INCLUDE_PATH ImfRgbaFile.h
  44         PATH_SUFFIXES OpenEXR
  45         NO_DEFAULT_PATH
  46         PATHS
  47         "${SEARCH_PATH}/include")
  48
  49     IF (OPENEXR_INCLUDE_PATH)
  50         SET(OPENEXR_VERSION_FILE "${OPENEXR_INCLUDE_PATH}/OpenEXRConfig.h")
  51         IF (EXISTS ${OPENEXR_VERSION_FILE})
  52             FILE (STRINGS ${OPENEXR_VERSION_FILE} contents REGEX "#define OPENEXR_VERSION_MAJOR ")
  53             IF (${contents} MATCHES "#define OPENEXR_VERSION_MAJOR ([0-9]+)")
  54                 SET(OPENEXR_VERSION_MAJOR "${CMAKE_MATCH_1}")
  55             ENDIF ()
  56             FILE (STRINGS ${OPENEXR_VERSION_FILE} contents REGEX "#define OPENEXR_VERSION_MINOR ")
  57             IF (${contents} MATCHES "#define OPENEXR_VERSION_MINOR ([0-9]+)")
  58                 SET(OPENEXR_VERSION_MINOR "${CMAKE_MATCH_1}")
  59             ENDIF ()
  60         ENDIF ()
  61     ENDIF ()
  62
  63     IF (OPENEXR_VERSION_MAJOR AND OPENEXR_VERSION_MINOR)
  64         set(OPENEXR_VERSION "${OPENEXR_VERSION_MAJOR}_${OPENEXR_VERSION_MINOR}")
  65     ENDIF ()
  66
  67     SET(LIBRARY_SUFFIXES
  68         "-${OPENEXR_VERSION}"
  69         "-${OPENEXR_VERSION}_s"
  70         "-${OPENEXR_VERSION}_d"
  71         "-${OPEXEXR_VERSION}_s_d"
  72         ""
  73         "_s"
  74         "_d"
  75         "_s_d")
  76
  77     FOREACH(LIBRARY_SUFFIX ${LIBRARY_SUFFIXES})
  78         FIND_OPENEXR_LIBRARY("Half" ${LIBRARY_SUFFIX})
  79         FIND_OPENEXR_LIBRARY("Iex" ${LIBRARY_SUFFIX})
  80         FIND_OPENEXR_LIBRARY("Imath" ${LIBRARY_SUFFIX})
  81         FIND_OPENEXR_LIBRARY("IlmImf" ${LIBRARY_SUFFIX})
  82         FIND_OPENEXR_LIBRARY("IlmThread" ${LIBRARY_SUFFIX})
  83         IF (OPENEXR_INCLUDE_PATH AND OPENEXR_IMATH_LIBRARY AND OPENEXR_ILMIMF_LIBRARY AND OPENEXR_IEX_LIBRARY AND OPENEXR_HALF_LIBRARY)
  84             SET(OPENEXR_FOUND TRUE)
  85             BREAK()
  86         ENDIF()
  87         UNSET(OPENEXR_IMATH_LIBRARY)
  88         UNSET(OPENEXR_ILMIMF_LIBRARY)
  89         UNSET(OPENEXR_IEX_LIBRARY)
  90         UNSET(OPENEXR_ILMTHREAD_LIBRARY)
  91         UNSET(OPENEXR_HALF_LIBRARY)
  92     ENDFOREACH()
  93
  94     IF (OPENEXR_FOUND)
  95         BREAK()
  96     ENDIF()
  97
  98     UNSET(OPENEXR_INCLUDE_PATH)
  99     UNSET(OPENEXR_VERSION_FILE)
 100     UNSET(OPENEXR_VERSION_MAJOR)
 101     UNSET(OPENEXR_VERSION_MINOR)
 102     UNSET(OPENEXR_VERSION)
 103 ENDFOREACH()
 104
 105 IF (OPENEXR_FOUND)
 106     SET(OPENEXR_INCLUDE_PATHS ${OPENEXR_INCLUDE_PATH} CACHE PATH "The include paths needed to use OpenEXR")
 107     SET(OPENEXR_LIBRARIES ${OPENEXR_IMATH_LIBRARY} ${OPENEXR_ILMIMF_LIBRARY} ${OPENEXR_IEX_LIBRARY} ${OPENEXR_HALF_LIBRARY} ${OPENEXR_ILMTHREAD_LIBRARY} CACHE STRING "The libraries needed to use OpenEXR" FORCE)
 108 ENDIF ()
 109
 110 IF(OPENEXR_FOUND)
 111   IF(NOT OPENEXR_FIND_QUIETLY)
 112     MESSAGE(STATUS "Found OpenEXR: ${OPENEXR_ILMIMF_LIBRARY}")
 113   ENDIF()
 114   if(PKG_CONFIG_FOUND AND NOT OPENEXR_VERSION)
 115     get_filename_component(OPENEXR_LIB_PATH "${OPENEXR_ILMIMF_LIBRARY}" PATH)
 116     if(EXISTS "${OPENEXR_LIB_PATH}/pkgconfig/OpenEXR.pc")
 117       execute_process(COMMAND ${PKG_CONFIG_EXECUTABLE} --modversion "${OPENEXR_LIB_PATH}/pkgconfig/OpenEXR.pc"
 118                       RESULT_VARIABLE PKG_CONFIG_PROCESS
 119                       OUTPUT_VARIABLE OPENEXR_VERSION
 120                       OUTPUT_STRIP_TRAILING_WHITESPACE ERROR_QUIET)
 121       if(NOT PKG_CONFIG_PROCESS EQUAL 0)
 122         SET(OPENEXR_VERSION "Unknown")
 123       endif()
 124     endif()
 125   endif()
 126   if(NOT OPENEXR_VERSION)
 127     SET(OPENEXR_VERSION "Unknown")
 128   endif()
 129 ELSE()
 130   IF(OPENEXR_FIND_REQUIRED)
 131     MESSAGE(FATAL_ERROR "Could not find OpenEXR library")
 132   ENDIF()
 133 ENDIF()
 134
 135 MARK_AS_ADVANCED(
 136     OPENEXR_INCLUDE_PATHS
 137     OPENEXR_LIBRARIES
 138     OPENEXR_ILMIMF_LIBRARY
 139     OPENEXR_IMATH_LIBRARY
 140     OPENEXR_IEX_LIBRARY
 141     OPENEXR_HALF_LIBRARY
 142     OPENEXR_ILMTHREAD_LIBRARY)