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# - Try to find OpenCV library installation
# See http://sourceforge.net/projects/opencvlibrary/
#
# The following variables are optionally searched for defaults
# OpenCV_ROOT_DIR: Base directory of OpenCv tree to use.
# OpenCV_FIND_REQUIRED_COMPONENTS : FIND_PACKAGE(OpenCV COMPONENTS ..)
# compatible interface. typically CV CXCORE CVAUX HIGHGUI CVCAM .. etc.
#
# The following are set after configuration is done:
# OpenCV_FOUND
# OpenCV_INCLUDE_DIR
# OpenCV_LIBRARIES
# OpenCV_LINK_DIRECTORIES
#
# deprecated:
# OPENCV_* uppercase replaced by case sensitive OpenCV_*
# OPENCV_EXE_LINKER_FLAGS
# OPENCV_INCLUDE_DIR : replaced by plural *_DIRS
#
# 2004/05 Jan Woetzel, Friso, Daniel Grest
# 2006/01 complete rewrite by Jan Woetzel
# 1006/09 2nd rewrite introducing ROOT_DIR and PATH_SUFFIXES
# to handle multiple installed versions gracefully by Jan Woetzel
#
# tested with:
# -OpenCV 0.97 (beta5a): MSVS 7.1, gcc 3.3, gcc 4.1
# -OpenCV 0.99 (1.0rc1): MSVS 7.1
#
# www.mip.informatik.uni-kiel.de/~jw
# --------------------------------
MACRO(DBG_MSG _MSG)
# MESSAGE(STATUS "${CMAKE_CURRENT_LIST_FILE}(${CMAKE_CURRENT_LIST_LINE}):\n${_MSG}")
ENDMACRO(DBG_MSG)
# required cv components with header and library if COMPONENTS unspecified
IF (NOT OpenCV_FIND_COMPONENTS)
# default
SET(OpenCV_FIND_REQUIRED_COMPONENTS CV CXCORE CVAUX HIGHGUI )
IF (WIN32)
LIST(APPEND OpenCV_FIND_REQUIRED_COMPONENTS CVCAM ) # WIN32 only actually
ENDIF(WIN32)
ENDIF (NOT OpenCV_FIND_COMPONENTS)
# typical root dirs of installations, exactly one of them is used
SET (OpenCV_POSSIBLE_ROOT_DIRS
"${OpenCV_ROOT_DIR}"
"$ENV{OpenCV_ROOT_DIR}"
"$ENV{OPENCV_DIR}" # only for backward compatibility deprecated by ROOT_DIR
"$ENV{OPENCV_HOME}" # only for backward compatibility
"[HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Uninstall\\Intel(R) Open Source Computer Vision Library_is1;Inno Setup: App Path]"
"$ENV{ProgramFiles}/OpenCV"
/usr/local
/usr
)
# MIP Uni Kiel /opt/net network installation
# get correct prefix for current gcc compiler version for gcc 3.x 4.x
IF (${CMAKE_COMPILER_IS_GNUCXX})
IF (NOT OpenCV_FIND_QUIETLY)
MESSAGE(STATUS "Checking GNUCXX version 3/4 to determine OpenCV /opt/net/ path")
ENDIF (NOT OpenCV_FIND_QUIETLY)
EXEC_PROGRAM(${CMAKE_CXX_COMPILER} ARGS --version OUTPUT_VARIABLE CXX_COMPILER_VERSION)
IF (CXX_COMPILER_VERSION MATCHES ".*3\\.[0-9].*")
SET(IS_GNUCXX3 TRUE)
LIST(APPEND OpenCV_POSSIBLE_ROOT_DIRS /opt/net/gcc33/OpenCV )
ENDIF(CXX_COMPILER_VERSION MATCHES ".*3\\.[0-9].*")
IF (CXX_COMPILER_VERSION MATCHES ".*4\\.[0-9].*")
SET(IS_GNUCXX4 TRUE)
LIST(APPEND OpenCV_POSSIBLE_ROOT_DIRS /opt/net/gcc41/OpenCV )
ENDIF(CXX_COMPILER_VERSION MATCHES ".*4\\.[0-9].*")
ENDIF (${CMAKE_COMPILER_IS_GNUCXX})
#DBG_MSG("DBG (OpenCV_POSSIBLE_ROOT_DIRS=${OpenCV_POSSIBLE_ROOT_DIRS}")
#
# select exactly ONE OpenCV base directory/tree
# to avoid mixing different version headers and libs
#
FIND_PATH(OpenCV_ROOT_DIR
NAMES
cv/include/cv.h # windows
include/opencv/cv.h # linux /opt/net
include/cv/cv.h
include/cv.h
PATHS ${OpenCV_POSSIBLE_ROOT_DIRS})
DBG_MSG("OpenCV_ROOT_DIR=${OpenCV_ROOT_DIR}")
# header include dir suffixes appended to OpenCV_ROOT_DIR
SET(OpenCV_INCDIR_SUFFIXES
include
include/cv
include/opencv
cv/include
cxcore/include
cvaux/include
otherlibs/cvcam/include
otherlibs/highgui
otherlibs/highgui/include
otherlibs/_graphics/include
)
# library linkdir suffixes appended to OpenCV_ROOT_DIR
SET(OpenCV_LIBDIR_SUFFIXES
lib
OpenCV/lib
otherlibs/_graphics/lib
)
#DBG_MSG("OpenCV_LIBDIR_SUFFIXES=${OpenCV_LIBDIR_SUFFIXES}")
#
# find incdir for each lib
#
FIND_PATH(OpenCV_CV_INCLUDE_DIR
NAMES cv.h
PATHS ${OpenCV_ROOT_DIR}
PATH_SUFFIXES ${OpenCV_INCDIR_SUFFIXES} )
FIND_PATH(OpenCV_CXCORE_INCLUDE_DIR
NAMES cxcore.h
PATHS ${OpenCV_ROOT_DIR}
PATH_SUFFIXES ${OpenCV_INCDIR_SUFFIXES} )
FIND_PATH(OpenCV_CVAUX_INCLUDE_DIR
NAMES cvaux.h
PATHS ${OpenCV_ROOT_DIR}
PATH_SUFFIXES ${OpenCV_INCDIR_SUFFIXES} )
FIND_PATH(OpenCV_HIGHGUI_INCLUDE_DIR
NAMES highgui.h
PATHS ${OpenCV_ROOT_DIR}
PATH_SUFFIXES ${OpenCV_INCDIR_SUFFIXES} )
FIND_PATH(OpenCV_CVCAM_INCLUDE_DIR
NAMES cvcam.h
PATHS ${OpenCV_ROOT_DIR}
PATH_SUFFIXES ${OpenCV_INCDIR_SUFFIXES} )
#
# find sbsolute path to all libraries
# some are optionally, some may not exist on Linux
#
FIND_LIBRARY(OpenCV_CV_LIBRARY
NAMES cv opencv
PATHS ${OpenCV_ROOT_DIR}
PATH_SUFFIXES ${OpenCV_LIBDIR_SUFFIXES} )
FIND_LIBRARY(OpenCV_CVAUX_LIBRARY
NAMES cvaux
PATHS ${OpenCV_ROOT_DIR} PATH_SUFFIXES ${OpenCV_LIBDIR_SUFFIXES} )
FIND_LIBRARY(OpenCV_CVCAM_LIBRARY
NAMES cvcam
PATHS ${OpenCV_ROOT_DIR} PATH_SUFFIXES ${OpenCV_LIBDIR_SUFFIXES} )
FIND_LIBRARY(OpenCV_CVHAARTRAINING_LIBRARY
NAMES cvhaartraining
PATHS ${OpenCV_ROOT_DIR} PATH_SUFFIXES ${OpenCV_LIBDIR_SUFFIXES} )
FIND_LIBRARY(OpenCV_CXCORE_LIBRARY
NAMES cxcore
PATHS ${OpenCV_ROOT_DIR} PATH_SUFFIXES ${OpenCV_LIBDIR_SUFFIXES} )
FIND_LIBRARY(OpenCV_CXTS_LIBRARY
NAMES cxts
PATHS ${OpenCV_ROOT_DIR} PATH_SUFFIXES ${OpenCV_LIBDIR_SUFFIXES} )
FIND_LIBRARY(OpenCV_HIGHGUI_LIBRARY
NAMES highgui
PATHS ${OpenCV_ROOT_DIR} PATH_SUFFIXES ${OpenCV_LIBDIR_SUFFIXES} )
FIND_LIBRARY(OpenCV_ML_LIBRARY
NAMES ml
PATHS ${OpenCV_ROOT_DIR} PATH_SUFFIXES ${OpenCV_LIBDIR_SUFFIXES} )
FIND_LIBRARY(OpenCV_TRS_LIBRARY
NAMES trs
PATHS ${OpenCV_ROOT_DIR} PATH_SUFFIXES ${OpenCV_LIBDIR_SUFFIXES} )
#
# Logic selecting required libs and headers
#
SET(OpenCV_FOUND ON)
DBG_MSG("OpenCV_FIND_REQUIRED_COMPONENTS=${OpenCV_FIND_REQUIRED_COMPONENTS}")
FOREACH(NAME ${OpenCV_FIND_REQUIRED_COMPONENTS} )
# only good if header and library both found
IF (OpenCV_${NAME}_INCLUDE_DIR AND OpenCV_${NAME}_LIBRARY)
LIST(APPEND OpenCV_INCLUDE_DIRS ${OpenCV_${NAME}_INCLUDE_DIR} )
LIST(APPEND OpenCV_LIBRARIES ${OpenCV_${NAME}_LIBRARY} )
#DBG_MSG("appending for NAME=${NAME} ${OpenCV_${NAME}_INCLUDE_DIR} and ${OpenCV_${NAME}_LIBRARY}" )
ELSE (OpenCV_${NAME}_INCLUDE_DIR AND OpenCV_${NAME}_LIBRARY)
DBG_MSG("OpenCV component NAME=${NAME} not found! "
"\nOpenCV_${NAME}_INCLUDE_DIR=${OpenCV_${NAME}_INCLUDE_DIR} "
"\nOpenCV_${NAME}_LIBRARY=${OpenCV_${NAME}_LIBRARY} ")
SET(OpenCV_FOUND OFF)
ENDIF (OpenCV_${NAME}_INCLUDE_DIR AND OpenCV_${NAME}_LIBRARY)
ENDFOREACH(NAME)
DBG_MSG("OpenCV_INCLUDE_DIRS=${OpenCV_INCLUDE_DIRS}")
DBG_MSG("OpenCV_LIBRARIES=${OpenCV_LIBRARIES}")
# get the link directory for rpath to be used with LINK_DIRECTORIES:
IF (OpenCV_CV_LIBRARY)
GET_FILENAME_COMPONENT(OpenCV_LINK_DIRECTORIES ${OpenCV_CV_LIBRARY} PATH)
ENDIF (OpenCV_CV_LIBRARY)
MARK_AS_ADVANCED(
OpenCV_ROOT_DIR
OpenCV_INCLUDE_DIRS
OpenCV_CV_INCLUDE_DIR
OpenCV_CXCORE_INCLUDE_DIR
OpenCV_CVAUX_INCLUDE_DIR
OpenCV_CVCAM_INCLUDE_DIR
OpenCV_HIGHGUI_INCLUDE_DIR
OpenCV_LIBRARIES
OpenCV_CV_LIBRARY
OpenCV_CXCORE_LIBRARY
OpenCV_CVAUX_LIBRARY
OpenCV_CVCAM_LIBRARY
OpenCV_CVHAARTRAINING_LIBRARY
OpenCV_CXTS_LIBRARY
OpenCV_HIGHGUI_LIBRARY
OpenCV_ML_LIBRARY
OpenCV_TRS_LIBRARY
)
# be backward compatible:
SET(OPENCV_LIBRARIES ${OpenCV_LIBRARIES} )
SET(OPENCV_INCLUDE_DIR ${OpenCV_INCLUDE_DIRS} )
SET(OPENCV_FOUND ${OpenCV_FOUND})
# display help message
IF(NOT OpenCV_FOUND)
# make FIND_PACKAGE friendly
IF(NOT OpenCV_FIND_QUIETLY)
IF(OpenCV_FIND_REQUIRED)
MESSAGE(FATAL_ERROR
"OpenCV required but some headers or libs not found. Please specify it's location with OpenCV_ROOT_DIR env. variable.")
ELSE(OpenCV_FIND_REQUIRED)
MESSAGE(STATUS
"ERROR: OpenCV was not found.")
ENDIF(OpenCV_FIND_REQUIRED)
ENDIF(NOT OpenCV_FIND_QUIETLY)
ENDIF(NOT OpenCV_FOUND)