opencv/CMakeLists.txt

# ----------------------------------------------------------------------------
#  Root CMake file for OpenCV
#
#    From the off-tree build directory, invoke:
#      $ cmake <PATH_TO_OPENCV_ROOT>
#
#
#   - OCT-2008: Initial version <joseluisblancoc@gmail.com>
#
# ----------------------------------------------------------------------------

set(CMAKE_ALLOW_LOOSE_LOOP_CONSTRUCTS true)

# --------------------------------------------------------------
# Indicate CMake 2.7 and above that we don't want to mix relative
#  and absolute paths in linker lib lists.
# Run "cmake --help-policy CMP0003" for more information.
# --------------------------------------------------------------
if(COMMAND cmake_policy)
  cmake_policy(SET CMP0003 NEW)
endif()

# Following block can broke build in case of cross-compilng
# but CMAKE_CROSSCOMPILING variable will be set only on project(OpenCV) command
# so we will try to detect crosscompiling by presense of CMAKE_TOOLCHAIN_FILE
if(NOT CMAKE_TOOLCHAIN_FILE)
  # it _must_ go before project(OpenCV) in order to work
  if(WIN32)
    set(CMAKE_INSTALL_PREFIX "${CMAKE_BINARY_DIR}/install" CACHE PATH "Installation Directory")
  else()
    set(CMAKE_INSTALL_PREFIX "/usr/local" CACHE PATH "Installation Directory")
  endif()

  if(MSVC)
    set(CMAKE_USE_RELATIVE_PATHS ON CACHE INTERNAL "" FORCE)
  endif()
else(NOT CMAKE_TOOLCHAIN_FILE)
  #Android: set output folder to ${CMAKE_BINARY_DIR}
  set( LIBRARY_OUTPUT_PATH_ROOT ${CMAKE_BINARY_DIR} CACHE PATH "root for library output, set this to change where android libs are compiled to" )
  # any crosscompiling
  set(CMAKE_INSTALL_PREFIX "${CMAKE_BINARY_DIR}/install" CACHE PATH "Installation Directory")
endif(NOT CMAKE_TOOLCHAIN_FILE)

# --------------------------------------------------------------
# Top level OpenCV project
# --------------------------------------------------------------
if(CMAKE_GENERATOR MATCHES Xcode AND XCODE_VERSION VERSION_GREATER 4.3)
  cmake_minimum_required(VERSION 2.8.8)
elseif(IOS)
  cmake_minimum_required(VERSION 2.8.0)
else()
  cmake_minimum_required(VERSION 2.6.3)
endif()

# must go before the project command
set(CMAKE_CONFIGURATION_TYPES "Debug;Release" CACHE STRING "Configs" FORCE)
if(DEFINED CMAKE_BUILD_TYPE AND CMAKE_VERSION VERSION_GREATER "2.8")
  set_property( CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS ${CMAKE_CONFIGURATION_TYPES} )
endif()

project(OpenCV CXX C)

include(cmake/OpenCVUtils.cmake REQUIRED)

# ----------------------------------------------------------------------------
# Break in case of popular CMake configuration mistakes
# ----------------------------------------------------------------------------
if(NOT CMAKE_SIZEOF_VOID_P GREATER 0)
  message(FATAL_ERROR "CMake fails to deterimine the bitness of target platform.
  Please check your CMake and compiler installation. If you are crosscompiling then ensure that your CMake toolchain file correctly sets the compiler details.")
endif()

# ----------------------------------------------------------------------------
# Detect compiler and target platform architecture
# ----------------------------------------------------------------------------
include(cmake/OpenCVDetectCXXCompiler.cmake REQUIRED)

# Add these standard paths to the search paths for FIND_LIBRARY
# to find libraries from these locations first
if(UNIX AND NOT ANDROID)
  if(X86_64 OR CMAKE_SIZEOF_VOID_P EQUAL 8)
    if(EXISTS /lib64)
      list(APPEND CMAKE_LIBRARY_PATH /lib64)
    else()
      list(APPEND CMAKE_LIBRARY_PATH /lib)
    endif()
    if(EXISTS /usr/lib64)
      list(APPEND CMAKE_LIBRARY_PATH /usr/lib64)
    else()
      list(APPEND CMAKE_LIBRARY_PATH /usr/lib)
    endif()
  elseif(X86 OR CMAKE_SIZEOF_VOID_P EQUAL 4)
    if(EXISTS /lib32)
      list(APPEND CMAKE_LIBRARY_PATH /lib32)
    else()
      list(APPEND CMAKE_LIBRARY_PATH /lib)
    endif()
    if(EXISTS /usr/lib32)
      list(APPEND CMAKE_LIBRARY_PATH /usr/lib32)
    else()
      list(APPEND CMAKE_LIBRARY_PATH /usr/lib)
    endif()
  endif()
endif()


# ----------------------------------------------------------------------------
# OpenCV cmake options
# ----------------------------------------------------------------------------

# Optional 3rd party components
# ===================================================
OCV_OPTION(WITH_1394           "Include IEEE1394 support"                    ON   IF (UNIX AND NOT ANDROID AND NOT IOS) )
OCV_OPTION(WITH_AVFOUNDATION   "Use AVFoundation for Video I/O"              ON   IF IOS)
OCV_OPTION(WITH_CARBON         "Use Carbon for UI instead of Cocoa"          OFF  IF APPLE )
OCV_OPTION(WITH_CUBLAS         "Include NVidia Cuda Basic Linear Algebra Subprograms (BLAS) library support" OFF IF (CMAKE_VERSION VERSION_GREATER "2.8" AND NOT ANDROID AND NOT IOS) )
OCV_OPTION(WITH_CUDA           "Include NVidia Cuda Runtime support"         ON   IF (CMAKE_VERSION VERSION_GREATER "2.8" AND NOT ANDROID AND NOT IOS) )
OCV_OPTION(WITH_CUFFT          "Include NVidia Cuda Fast Fourier Transform (FFT) library support"            ON  IF (CMAKE_VERSION VERSION_GREATER "2.8" AND NOT ANDROID AND NOT IOS) )
OCV_OPTION(WITH_EIGEN          "Include Eigen2/Eigen3 support"               ON)
OCV_OPTION(WITH_FFMPEG         "Include FFMPEG support"                      ON   IF (NOT ANDROID AND NOT IOS) )
OCV_OPTION(WITH_GSTREAMER      "Include Gstreamer support"                   ON   IF (UNIX AND NOT APPLE AND NOT ANDROID) )
OCV_OPTION(WITH_GTK            "Include GTK support"                         ON   IF (UNIX AND NOT APPLE AND NOT ANDROID) )
OCV_OPTION(WITH_IMAGEIO        "ImageIO support for OS X"                    OFF  IF APPLE)
OCV_OPTION(WITH_IPP            "Include Intel IPP support"                   OFF  IF (MSVC OR X86 OR X86_64) )
OCV_OPTION(WITH_JASPER         "Include JPEG2K support"                      ON   IF (NOT IOS) )
OCV_OPTION(WITH_JPEG           "Include JPEG support"                        ON   IF (NOT IOS) )
OCV_OPTION(WITH_OPENEXR        "Include ILM support via OpenEXR"             ON   IF (NOT IOS) )
OCV_OPTION(WITH_OPENGL         "Include OpenGL support"                      OFF  IF (NOT ANDROID AND NOT APPLE) )
OCV_OPTION(WITH_OPENNI         "Include OpenNI support"                      OFF  IF (NOT ANDROID AND NOT IOS) )
OCV_OPTION(WITH_PNG            "Include PNG support"                         ON   IF (NOT IOS) )
OCV_OPTION(WITH_PVAPI          "Include Prosilica GigE support"              ON   IF (NOT ANDROID AND NOT IOS) )
OCV_OPTION(WITH_QT             "Build with Qt Backend support"               OFF  IF (NOT ANDROID AND NOT IOS) )
OCV_OPTION(WITH_QUICKTIME      "Use QuickTime for Video I/O insted of QTKit" OFF  IF APPLE )
OCV_OPTION(WITH_TBB            "Include Intel TBB support"                   OFF  IF (NOT IOS) )
OCV_OPTION(WITH_TIFF           "Include TIFF support"                        ON   IF (NOT IOS) )
OCV_OPTION(WITH_UNICAP         "Include Unicap support (GPL)"                OFF  IF (UNIX AND NOT APPLE AND NOT ANDROID) )
OCV_OPTION(WITH_V4L            "Include Video 4 Linux support"               ON   IF (UNIX AND NOT APPLE AND NOT ANDROID) )
OCV_OPTION(WITH_VIDEOINPUT     "Build HighGUI with DirectShow support"       ON   IF WIN32 )
OCV_OPTION(WITH_XIMEA          "Include XIMEA cameras support"               OFF  IF (NOT ANDROID AND NOT APPLE) )
OCV_OPTION(WITH_XINE           "Include Xine support (GPL)"                  OFF  IF (UNIX AND NOT APPLE AND NOT ANDROID) )
OCV_OPTION(WITH_CLP            "Include Clp support (EPL)"                   OFF)

# OpenCV build components
# ===================================================
OCV_OPTION(BUILD_SHARED_LIBS        "Build shared libraries (.dll/.so) instead of static ones (.lib/.a)" NOT (ANDROID OR IOS) )
OCV_OPTION(BUILD_ANDROID_EXAMPLES   "Build examples for Android platform"         ON  IF ANDROID )
OCV_OPTION(BUILD_DOCS               "Create build rules for OpenCV Documentation" ON )
OCV_OPTION(BUILD_EXAMPLES           "Build all examples"                          OFF )
OCV_OPTION(BUILD_PACKAGE            "Enables 'make package_source' command"       ON )
OCV_OPTION(BUILD_PERF_TESTS         "Build performance tests"                     ON  IF (NOT IOS) )
OCV_OPTION(BUILD_TESTS              "Build accuracy & regression tests"           ON  IF (NOT IOS) )
OCV_OPTION(BUILD_WITH_DEBUG_INFO    "Include debug info into debug libs (not MSCV only)" ON )
OCV_OPTION(BUILD_WITH_STATIC_CRT    "Enables use of staticaly linked CRT for staticaly linked OpenCV" ON IF MSVC )
OCV_OPTION(BUILD_FAT_JAVA_LIB       "Create fat java wrapper containing the whole OpenCV library" ON IF ANDROID AND NOT BUILD_SHARED_LIBS AND CMAKE_COMPILER_IS_GNUCXX )
OCV_OPTION(BUILD_ANDROID_SERVICE    "Build OpenCV Manager for Google Play" OFF IF ANDROID AND ANDROID_USE_STLPORT AND ANDROID_SOURCE_TREE )
OCV_OPTION(BUILD_ANDROID_PACKAGE    "Build platform-specific package for Google Play" OFF IF ANDROID )


# 3rd party libs
OCV_OPTION(BUILD_ZLIB               "Build zlib from source"         WIN32 OR IOS OR APPLE )
OCV_OPTION(BUILD_TIFF               "Build libtiff from source"      WIN32 OR IOS OR ANDROID OR APPLE )
OCV_OPTION(BUILD_JASPER             "Build libjasper from source"    WIN32 OR IOS OR ANDROID OR APPLE )
OCV_OPTION(BUILD_JPEG               "Build libjpeg from source"      WIN32 OR IOS OR ANDROID OR APPLE )
OCV_OPTION(BUILD_PNG                "Build libpng from source"       WIN32 OR IOS OR ANDROID OR APPLE )

# OpenCV installation options
# ===================================================
OCV_OPTION(INSTALL_C_EXAMPLES       "Install C examples"        OFF )
OCV_OPTION(INSTALL_PYTHON_EXAMPLES  "Install Python examples"   OFF )
OCV_OPTION(INSTALL_ANDROID_EXAMPLES "Install Android examples"  OFF  IF ANDROID )
OCV_OPTION(INSTALL_TO_MANGLED_PATHS "Enables mangled install paths, that help with side by side installs." OFF IF (UNIX AND NOT ANDROID AND NOT IOS AND BUILD_SHARED_LIBS) )


if(MSVC_IDE OR CMAKE_GENERATOR MATCHES Xcode)
  set(ENABLE_SOLUTION_FOLDERS0 ON)
else()
  set(ENABLE_SOLUTION_FOLDERS0 OFF)
endif()

# OpenCV build options
# ===================================================
OCV_OPTION(ENABLE_PRECOMPILED_HEADERS "Use precompiled headers"                                  ON   IF (NOT IOS) )
OCV_OPTION(ENABLE_SOLUTION_FOLDERS    "Solution folder in Visual Studio or in other IDEs"        ${ENABLE_SOLUTION_FOLDERS0} IF (CMAKE_VERSION VERSION_GREATER "2.8.0") )
OCV_OPTION(ENABLE_PROFILING           "Enable profiling in the GCC compiler (Add flags: -g -pg)" OFF  IF CMAKE_COMPILER_IS_GNUCXX )
OCV_OPTION(ENABLE_OMIT_FRAME_POINTER  "Enable -fomit-frame-pointer for GCC"                      ON   IF CMAKE_COMPILER_IS_GNUCXX )
OCV_OPTION(ENABLE_POWERPC             "Enable PowerPC for GCC"                                   ON   IF (CMAKE_COMPILER_IS_GNUCXX AND CMAKE_SYSTEM_PROCESSOR MATCHES powerpc.*) )
OCV_OPTION(ENABLE_FAST_MATH           "Enable -ffast-math (not recommended for GCC 4.6.x)"       OFF  IF (CMAKE_COMPILER_IS_GNUCXX AND (X86 OR X86_64)) )
OCV_OPTION(ENABLE_SSE                 "Enable SSE instructions"                                  ON   IF (MSVC OR CMAKE_COMPILER_IS_GNUCXX AND (X86 OR X86_64)) )
OCV_OPTION(ENABLE_SSE2                "Enable SSE2 instructions"                                 ON   IF (MSVC OR CMAKE_COMPILER_IS_GNUCXX AND (X86 OR X86_64)) )
OCV_OPTION(ENABLE_SSE3                "Enable SSE3 instructions"                                 OFF  IF (CV_ICC OR CMAKE_COMPILER_IS_GNUCXX AND (X86 OR X86_64)) )
OCV_OPTION(ENABLE_SSSE3               "Enable SSSE3 instructions"                                OFF  IF (CMAKE_COMPILER_IS_GNUCXX AND (X86 OR X86_64)) )
OCV_OPTION(ENABLE_SSE41               "Enable SSE4.1 instructions"                               OFF  IF (CV_ICC OR CMAKE_COMPILER_IS_GNUCXX AND (X86 OR X86_64)) )
OCV_OPTION(ENABLE_SSE42               "Enable SSE4.2 instructions"                               OFF  IF (CMAKE_COMPILER_IS_GNUCXX AND (X86 OR X86_64)) )
OCV_OPTION(ENABLE_NOISY_WARNINGS      "Show all warnings even if they are too noisy"             OFF )
OCV_OPTION(OPENCV_WARNINGS_ARE_ERRORS "Treat warnings as errors"                                 OFF )

# uncategorized options
# ===================================================
OCV_OPTION(CMAKE_VERBOSE "Verbose mode" OFF )

# backward compatibility
# ===================================================
include(cmake/OpenCVLegacyOptions.cmake OPTIONAL)


# ----------------------------------------------------------------------------
#  Get actual OpenCV version number from sources
# ----------------------------------------------------------------------------
include(cmake/OpenCVVersion.cmake REQUIRED)


# ----------------------------------------------------------------------------
#  Build & install layouts
# ----------------------------------------------------------------------------

# Save libs and executables in the same place
set(EXECUTABLE_OUTPUT_PATH "${CMAKE_BINARY_DIR}/bin" CACHE PATH "Output directory for applications" )

if(ANDROID OR WIN32)
    set(OPENCV_DOC_INSTALL_PATH doc)
elseif(INSTALL_TO_MANGLED_PATHS)
    set(OPENCV_DOC_INSTALL_PATH share/OpenCV-${OPENCV_VERSION}/doc)
else()
    set(OPENCV_DOC_INSTALL_PATH share/OpenCV/doc)
endif()

if(ANDROID)
    set(LIBRARY_OUTPUT_PATH         "${OpenCV_BINARY_DIR}/lib/${ANDROID_NDK_ABI_NAME}")
    set(3P_LIBRARY_OUTPUT_PATH      "${OpenCV_BINARY_DIR}/3rdparty/lib/${ANDROID_NDK_ABI_NAME}")
    set(OPENCV_LIB_INSTALL_PATH     sdk/native/libs/${ANDROID_NDK_ABI_NAME})
    set(OPENCV_3P_LIB_INSTALL_PATH  sdk/native/3rdparty/libs/${ANDROID_NDK_ABI_NAME})
    set(OPENCV_CONFIG_INSTALL_PATH  sdk/native/jni)
    set(OPENCV_INCLUDE_INSTALL_PATH sdk/native/jni/include)
else()
    set(LIBRARY_OUTPUT_PATH         "${OpenCV_BINARY_DIR}/lib")
    set(3P_LIBRARY_OUTPUT_PATH      "${OpenCV_BINARY_DIR}/3rdparty/lib${LIB_SUFFIX}")
    set(OPENCV_LIB_INSTALL_PATH     lib${LIB_SUFFIX})
    set(OPENCV_3P_LIB_INSTALL_PATH  share/OpenCV/3rdparty/${OPENCV_LIB_INSTALL_PATH})
    set(OPENCV_INCLUDE_INSTALL_PATH include)

    math(EXPR SIZEOF_VOID_P_BITS "8 * ${CMAKE_SIZEOF_VOID_P}")
    if(LIB_SUFFIX AND NOT SIZEOF_VOID_P_BITS EQUAL LIB_SUFFIX)
      set(OPENCV_CONFIG_INSTALL_PATH lib${LIB_SUFFIX}/cmake/opencv)
    else()
      set(OPENCV_CONFIG_INSTALL_PATH share/OpenCV)
    endif()
endif()

set(CMAKE_INSTALL_RPATH "${CMAKE_INSTALL_PREFIX}/${OPENCV_LIB_INSTALL_PATH}")
set(CMAKE_INSTALL_RPATH_USE_LINK_PATH TRUE)

if(INSTALL_TO_MANGLED_PATHS)
  set(OPENCV_INCLUDE_INSTALL_PATH ${OPENCV_INCLUDE_INSTALL_PATH}/opencv-${OPENCV_VERSION})
endif()

if(WIN32)
  # Postfix of DLLs:
  set(OPENCV_DLLVERSION "${OPENCV_VERSION_MAJOR}${OPENCV_VERSION_MINOR}${OPENCV_VERSION_PATCH}")
  set(OPENCV_DEBUG_POSTFIX d)
else()
  # Postfix of so's:
  set(OPENCV_DLLVERSION "")
  set(OPENCV_DEBUG_POSTFIX "")
endif()

if(DEFINED CMAKE_DEBUG_POSTFIX)
  set(OPENCV_DEBUG_POSTFIX "${CMAKE_DEBUG_POSTFIX}")
endif()

if(CMAKE_VERBOSE)
  set(CMAKE_VERBOSE_MAKEFILE 1)
endif()


# ----------------------------------------------------------------------------
#  Path for build/platform -specific headers
# ----------------------------------------------------------------------------
set(OPENCV_CONFIG_FILE_INCLUDE_DIR "${CMAKE_BINARY_DIR}/" CACHE PATH "Where to create the platform-dependant cvconfig.h")
add_definitions(-DHAVE_CVCONFIG_H)
ocv_include_directories(${OPENCV_CONFIG_FILE_INCLUDE_DIR})


# ----------------------------------------------------------------------------
#  Autodetect if we are in a SVN repository
# ----------------------------------------------------------------------------
find_host_program(SVNVERSION_PATH svnversion)
mark_as_advanced(force SVNVERSION_PATH)
if(SVNVERSION_PATH)
    message(STATUS "Extracting svn version, please wait...")
    execute_process(COMMAND ${SVNVERSION_PATH} -n ${OpenCV_SOURCE_DIR} OUTPUT_VARIABLE SVNVERSION_RESULT)

    if(SVNVERSION_RESULT MATCHES "exported")
        # This is NOT a svn repository:
        set(OPENCV_SVNVERSION "")
        message(STATUS "SVNVERSION: exported")
    else()
        set(OPENCV_SVNVERSION " svn:${SVNVERSION_RESULT}")
        message(STATUS "SVNVERSION: ${OPENCV_SVNVERSION}")
    endif()
else()
    # We don't have svnversion:
    set(OPENCV_SVNVERSION "")
endif()


# ----------------------------------------------------------------------------
# OpenCV compiler and linker options
# ----------------------------------------------------------------------------
# In case of Makefiles if the user does not setup CMAKE_BUILD_TYPE, assume it's Release:
if(CMAKE_GENERATOR MATCHES "Makefiles|Ninja" AND "${CMAKE_BUILD_TYPE}" STREQUAL "")
  set(CMAKE_BUILD_TYPE Release)
endif()

include(cmake/OpenCVCompilerOptions.cmake REQUIRED)


# ----------------------------------------------------------------------------
# Use statically or dynamically linked CRT?
# Default: dynamic
# ----------------------------------------------------------------------------
if(MSVC)
  include(cmake/OpenCVCRTLinkage.cmake REQUIRED)
endif(MSVC)


# ----------------------------------------------------------------------------
#       CHECK FOR SYSTEM LIBRARIES, OPTIONS, ETC..
# ----------------------------------------------------------------------------
if(UNIX)
  include(cmake/OpenCVFindPkgConfig.cmake OPTIONAL)
  include(CheckFunctionExists)
  include(CheckIncludeFile)

  if(NOT APPLE)
    CHECK_INCLUDE_FILE(alloca.h HAVE_ALLOCA_H)
    CHECK_FUNCTION_EXISTS(alloca HAVE_ALLOCA)
    CHECK_INCLUDE_FILE(unistd.h HAVE_UNISTD_H)
    CHECK_INCLUDE_FILE(pthread.h HAVE_LIBPTHREAD)
    if(ANDROID)
      set(OPENCV_LINKER_LIBS ${OPENCV_LINKER_LIBS} dl m log)
    elseif(${CMAKE_SYSTEM_NAME} MATCHES "FreeBSD|NetBSD|DragonFly")
      set(OPENCV_LINKER_LIBS ${OPENCV_LINKER_LIBS} m pthread)
    else()
      set(OPENCV_LINKER_LIBS ${OPENCV_LINKER_LIBS} dl m pthread rt)
    endif()
  else()
    add_definitions(-DHAVE_ALLOCA -DHAVE_ALLOCA_H -DHAVE_LIBPTHREAD -DHAVE_UNISTD_H)
  endif()
endif()

include(cmake/OpenCVPCHSupport.cmake REQUIRED)
include(cmake/OpenCVModule.cmake REQUIRED)

# ----------------------------------------------------------------------------
#  Detect 3rd-party libraries
# ----------------------------------------------------------------------------

include(cmake/OpenCVFindLibsGrfmt.cmake REQUIRED)
include(cmake/OpenCVFindLibsGUI.cmake   REQUIRED)
include(cmake/OpenCVFindLibsVideo.cmake REQUIRED)
include(cmake/OpenCVFindLibsPerf.cmake  REQUIRED)


# ----------------------------------------------------------------------------
#  Detect other 3rd-party libraries/tools
# ----------------------------------------------------------------------------

# --- LATEX for pdf documentation ---
if(BUILD_DOCS)
  include(cmake/OpenCVFindLATEX.cmake REQUIRED)
endif(BUILD_DOCS)

# --- Python Support ---
include(cmake/OpenCVDetectPython.cmake REQUIRED)

# --- Java Support ---
if(ANDROID)
  include(cmake/OpenCVDetectApacheAnt.cmake REQUIRED)
  include(cmake/OpenCVDetectAndroidSDK.cmake REQUIRED)

  if(NOT ANDROID_TOOLS_Pkg_Revision GREATER 13)
    message(WARNING "OpenCV requires Android SDK tools revision 14 or newer. Otherwise tests and samples will no be compiled.")
  endif()
endif(ANDROID)

if(ANDROID AND ANDROID_EXECUTABLE AND ANT_EXECUTABLE AND (ANT_VERSION VERSION_GREATER 1.7) AND (ANDROID_TOOLS_Pkg_Revision GREATER 13))
  SET(CAN_BUILD_ANDROID_PROJECTS TRUE)
else()
  SET(CAN_BUILD_ANDROID_PROJECTS FALSE)
endif()


# ----------------------------------------------------------------------------
# Solution folders:
# ----------------------------------------------------------------------------
if(ENABLE_SOLUTION_FOLDERS)
  set_property(GLOBAL PROPERTY USE_FOLDERS ON)
  set_property(GLOBAL PROPERTY PREDEFINED_TARGETS_FOLDER "CMakeTargets")
endif()

# Extra OpenCV targets: uninstall, package_source, perf, etc.
include(cmake/OpenCVExtraTargets.cmake REQUIRED)


# ----------------------------------------------------------------------------
# Process subdirectories
# ----------------------------------------------------------------------------

# opencv.hpp and legacy headers
add_subdirectory(include)

# OpenCV modules
add_subdirectory(modules)

# Generate targets for documentation
add_subdirectory(doc)

# various data that is used by cv libraries and/or demo applications.
add_subdirectory(data)

# extra applications
add_subdirectory(apps)

# examples
if(BUILD_EXAMPLES OR BUILD_ANDROID_EXAMPLES OR INSTALL_PYTHON_EXAMPLES)
  add_subdirectory(samples)
endif()

if(BUILD_ANDROID_SERVICE)
  add_subdirectory(android/service)
endif()

if(BUILD_ANDROID_PACKAGE)
  add_subdirectory(android/package)
endif()

# ----------------------------------------------------------------------------
# Finalization: generate configuration-based files
# ----------------------------------------------------------------------------
ocv_track_build_dependencies()

# Generate platform-dependent and configuration-dependent headers
include(cmake/OpenCVGenHeaders.cmake REQUIRED)

# Generate opencv.pc for pkg-config command
include(cmake/OpenCVGenPkgconfig.cmake REQUIRED)

# Generate OpenCV.mk for ndk-build (Android build tool)
include(cmake/OpenCVGenAndroidMK.cmake REQUIRED)

# Generate OpenCVСonfig.cmake and OpenCVConfig-version.cmake for cmake projects
include(cmake/OpenCVGenConfig.cmake REQUIRED)


# ----------------------------------------------------------------------------
# Summary:
# ----------------------------------------------------------------------------
status("")
status("General configuration for OpenCV ${OPENCV_VERSION} =====================================")
if(OPENCV_SVNVERSION)
  status("Version control:" ${OPENCV_SVNVERSION})
endif()

# ========================== build platform ==========================
status("")
status("  Platform:")
status("    Host:"             ${CMAKE_HOST_SYSTEM_NAME} ${CMAKE_HOST_SYSTEM_VERSION} ${CMAKE_HOST_SYSTEM_PROCESSOR})
if(CMAKE_CROSSCOMPILING)
  status("    Target:"         ${CMAKE_SYSTEM_NAME} ${CMAKE_SYSTEM_VERSION} ${CMAKE_SYSTEM_PROCESSOR})
endif()
status("    CMake:"            ${CMAKE_VERSION})
status("    CMake generator:"  ${CMAKE_GENERATOR})
status("    CMake build tool:" ${CMAKE_BUILD_TOOL})
if(MSVC)
  status("    MSVC:"           ${MSVC_VERSION})
endif()
if(CMAKE_GENERATOR MATCHES Xcode)
  status("    Xcode:"          ${XCODE_VERSION})
endif()
if(NOT CMAKE_GENERATOR MATCHES "Xcode|Visual Studio")
  status("    Configuration:"  ${CMAKE_BUILD_TYPE})
endif()

# ========================== C/C++ options ==========================
status("")
status("  C/C++:")
status("    Built as dynamic libs?:" BUILD_SHARED_LIBS THEN YES ELSE NO)
status("    C++ Compiler:"           CMAKE_COMPILER_IS_GNUCXX THEN "${CMAKE_CXX_COMPILER} (ver ${CMAKE_GCC_REGEX_VERSION})" ELSE "${CMAKE_CXX_COMPILER}" )
status("    C++ flags (Release):"    ${CMAKE_CXX_FLAGS} ${CMAKE_CXX_FLAGS_RELEASE})
status("    C++ flags (Debug):"      ${CMAKE_CXX_FLAGS} ${CMAKE_CXX_FLAGS_DEBUG})
status("    C Compiler:"             ${CMAKE_C_COMPILER})
status("    C flags (Release):"      ${CMAKE_C_FLAGS} ${CMAKE_C_FLAGS_RELEASE})
status("    C flags (Debug):"        ${CMAKE_C_FLAGS} ${CMAKE_C_FLAGS_DEBUG})
if(WIN32)
  status("    Linker flags (Release):" ${CMAKE_EXE_LINKER_FLAGS} ${CMAKE_EXE_LINKER_FLAGS_RELEASE})
  status("    Linker flags (Debug):"   ${CMAKE_EXE_LINKER_FLAGS} ${CMAKE_EXE_LINKER_FLAGS_DEBUG})
else()
  status("    Linker flags (Release):" ${CMAKE_SHARED_LINKER_FLAGS} ${CMAKE_SHARED_LINKER_FLAGS_RELEASE})
  status("    Linker flags (Debug):"   ${CMAKE_SHARED_LINKER_FLAGS} ${CMAKE_SHARED_LINKER_FLAGS_DEBUG})
endif()
status("    Precompiled headers:"     PCHSupport_FOUND AND ENABLE_PRECOMPILED_HEADERS THEN YES ELSE NO)

# ========================== OpenCV modules ==========================
status("")
status("  OpenCV modules:")
string(REPLACE "opencv_" "" OPENCV_MODULES_BUILD_ST          "${OPENCV_MODULES_BUILD}")
string(REPLACE "opencv_" "" OPENCV_MODULES_DISABLED_USER_ST  "${OPENCV_MODULES_DISABLED_USER}")
string(REPLACE "opencv_" "" OPENCV_MODULES_DISABLED_FORCE_ST "${OPENCV_MODULES_DISABLED_FORCE}")
set(OPENCV_MODULES_DISABLED_AUTO_ST "")
foreach(m ${OPENCV_MODULES_DISABLED_AUTO})
  set(__mdeps "")
  foreach(d ${OPENCV_MODULE_${m}_DEPS})
    if(d MATCHES "^opencv_" AND NOT HAVE_${d})
      list(APPEND __mdeps ${d})
    endif()
  endforeach()
  list(APPEND OPENCV_MODULES_DISABLED_AUTO_ST "${m}(deps: ${__mdeps})")
endforeach()
string(REPLACE "opencv_" "" OPENCV_MODULES_DISABLED_AUTO_ST  "${OPENCV_MODULES_DISABLED_AUTO_ST}")

status("    To be built:"            OPENCV_MODULES_BUILD          THEN ${OPENCV_MODULES_BUILD_ST}          ELSE "-")
status("    Disabled:"               OPENCV_MODULES_DISABLED_USER  THEN ${OPENCV_MODULES_DISABLED_USER_ST}  ELSE "-")
status("    Disabled by dependency:" OPENCV_MODULES_DISABLED_AUTO  THEN ${OPENCV_MODULES_DISABLED_AUTO_ST}  ELSE "-")
status("    Unavailable:"            OPENCV_MODULES_DISABLED_FORCE THEN ${OPENCV_MODULES_DISABLED_FORCE_ST} ELSE "-")

# ========================== Android details ==========================
if(ANDROID)
  status("")
  status("  Android: ")
  status("    Android ABI:" ${ANDROID_ABI})
  status("    Native API level:" android-${ANDROID_NATIVE_API_LEVEL})
  status("    SDK target:" "${ANDROID_SDK_TARGET}")
  if(BUILD_WITH_ANDROID_NDK)
    status("    Android NDK:" "${ANDROID_NDK} (toolchain: ${ANDROID_TOOLCHAIN_NAME})")
  elseif(BUILD_WITH_STANDALONE_TOOLCHAIN)
    status("    Android toolchain:" "${ANDROID_STANDALONE_TOOLCHAIN}")
  endif()
  status("    android tool:"  ANDROID_EXECUTABLE  THEN "${ANDROID_EXECUTABLE} (${ANDROID_TOOLS_Pkg_Desc})" ELSE NO)
  status("    ant:"           ANT_EXECUTABLE      THEN "${ANT_EXECUTABLE} (ver ${ANT_VERSION})"            ELSE NO)
  status("    Google Play package:" BUILD_ANDROID_PACKAGE THEN YES ELSE NO)
endif()

# ========================== GUI ==========================
status("")
status("  GUI: ")

if(HAVE_QT)
  status("    QT 4.x:"            HAVE_QT        THEN "YES (ver ${QT_VERSION_MAJOR}.${QT_VERSION_MINOR}.${QT_VERSION_PATCH} ${QT_EDITION})" ELSE NO)
  status("    QT OpenGL support:" HAVE_QT_OPENGL THEN "YES (${QT_QTOPENGL_LIBRARY})" ELSE NO)
else()
  if(DEFINED WITH_QT)
    status("    QT 4.x:" NO)
  endif()
  if(WIN32)
    status("    Win32 UI:" YES)
  else()
    if(APPLE)
      if(WITH_CARBON)
        status("    Carbon:" YES)
      else()
        status("    Cocoa:"  YES)
      endif()
    else()
      status("    GTK+ 2.x:" HAVE_GTK      THEN "YES (ver ${ALIASOF_gtk+-2.0_VERSION})"     ELSE NO)
      status("    GThread :" HAVE_GTHREAD  THEN "YES (ver ${ALIASOF_gthread-2.0_VERSION})"  ELSE NO)
      status("    GtkGlExt:" HAVE_GTKGLEXT THEN "YES (ver ${ALIASOF_gtkglext-1.0_VERSION})" ELSE NO)
    endif()
  endif()
endif()

status("    OpenGL support:" HAVE_OPENGL THEN "YES (${OPENGL_LIBRARIES})" ELSE NO)

# ========================== MEDIA IO ==========================
status("")
status("  Media I/O: ")
status("    ZLib:"         BUILD_ZLIB    THEN "build (ver ${ZLIB_VERSION_STRING})"               ELSE "${ZLIB_LIBRARY} (ver ${ZLIB_VERSION_STRING})")

if(WITH_JPEG)
  status("    JPEG:"       JPEG_FOUND    THEN "${JPEG_LIBRARY} (ver ${JPEG_LIB_VERSION})"        ELSE "build (ver ${JPEG_LIB_VERSION})")
else()
  status("    JPEG:"       "NO")
endif()
if(WITH_PNG)
  status("    PNG:"        PNG_FOUND     THEN "${PNG_LIBRARY} (ver ${PNG_VERSION})"              ELSE "build (ver ${PNG_VERSION})")
else()
  status("    PNG:"        "NO")
endif()
if(WITH_TIFF)
  if(TIFF_VERSION_STRING AND TIFF_FOUND)
    status("    TIFF:"     "${TIFF_LIBRARY} (ver ${TIFF_VERSION} - ${TIFF_VERSION_STRING})")
  else()
    status("    TIFF:"     TIFF_FOUND    THEN "${TIFF_LIBRARY} (ver ${TIFF_VERSION})"            ELSE "build (ver ${TIFF_VERSION} - ${TIFF_VERSION_STRING})")
  endif()
else()
  status("    TIFF:"       "NO")
endif()
if(WITH_JASPER)
  status("    JPEG 2000:"  JASPER_FOUND  THEN "${JASPER_LIBRARY} (ver ${JASPER_VERSION_STRING})" ELSE "build (ver ${JASPER_VERSION_STRING})")
else()
  status("    JPEG 2000:"  "NO")
endif()

status("    OpenEXR:"   WITH_OPENEXR AND OPENEXR_FOUND     THEN "${OPENEXR_LIBRARIES} (ver ${OPENEXR_VERSION})"                     ELSE NO)

# ========================== VIDEO IO ==========================
status("")
status("  Video I/O:")

if(DEFINED WITH_1394)
  status("    DC1394 1.x:"     HAVE_DC1394         THEN "YES (ver ${ALIASOF_libdc1394_VERSION})"   ELSE NO)
  status("    DC1394 2.x:"     HAVE_DC1394_2       THEN "YES (ver ${ALIASOF_libdc1394-2_VERSION})" ELSE NO)
endif(DEFINED WITH_1394)

if(ANDROID)
  if(HAVE_opencv_androidcamera)
    status("    AndroidNativeCamera:" BUILD_ANDROID_CAMERA_WRAPPER
                                                   THEN "YES, build for Android${ANDROID_VERSION}" ELSE "YES, use prebuilt libraries")
  else()
    status("    AndroidNativeCamera:" "NO (native camera requires Android API level 8 or higher)")
  endif()
endif()

if(DEFINED WITH_AVFOUNDATION)
  status("    AVFoundation:"   WITH_AVFOUNDATION   THEN YES                                        ELSE NO)
endif(DEFINED WITH_AVFOUNDATION)

if(DEFINED WITH_FFMPEG)
  if(WIN32)
    status("    FFMPEG:"       WITH_FFMPEG         THEN "YES (prebuilt binaries)"                  ELSE NO)
  else()
    status("    FFMPEG:"       HAVE_FFMPEG         THEN YES ELSE NO)
  endif()
  status("      codec:"        HAVE_FFMPEG_CODEC   THEN "YES (ver ${ALIASOF_libavcodec_VERSION})"  ELSE NO)
  status("      format:"       HAVE_FFMPEG_FORMAT  THEN "YES (ver ${ALIASOF_libavformat_VERSION})" ELSE NO)
  status("      util:"         HAVE_FFMPEG_UTIL    THEN "YES (ver ${ALIASOF_libavutil_VERSION})"   ELSE NO)
  status("      swscale:"      HAVE_FFMPEG_SWSCALE THEN "YES (ver ${ALIASOF_libswscale_VERSION})"  ELSE NO)
  status("      gentoo-style:" HAVE_GENTOO_FFMPEG  THEN YES                                        ELSE NO)
endif(DEFINED WITH_FFMPEG)

if(DEFINED WITH_GSTREAMER)
  status("    GStreamer:"      HAVE_GSTREAMER      THEN ""                                         ELSE NO)
  if(HAVE_GSTREAMER)
    status("      base:"       "YES (ver ${ALIASOF_gstreamer-base-0.10_VERSION})")
    status("      app:"        "YES (ver ${ALIASOF_gstreamer-app-0.10_VERSION})")
    status("      video:"      "YES (ver ${ALIASOF_gstreamer-video-0.10_VERSION})")
  endif()
endif(DEFINED WITH_GSTREAMER)

if(DEFINED WITH_OPENNI)
  status("    OpenNI:"         HAVE_OPENNI         THEN "YES (ver ${OPENNI_VERSION_STRING}, build ${OPENNI_VERSION_BUILD})"
                                                                                                   ELSE NO)
  status("    OpenNI PrimeSensor Modules:" HAVE_OPENNI_PRIME_SENSOR_MODULE
                                                   THEN "YES (${OPENNI_PRIME_SENSOR_MODULE})"      ELSE NO)
endif(DEFINED WITH_OPENNI)

if(DEFINED WITH_PVAPI)
  status("    PvAPI:"          HAVE_PVAPI          THEN YES                                        ELSE NO)
endif(DEFINED WITH_PVAPI)

if(DEFINED WITH_QUICKTIME)
  status("    QuickTime:"      WITH_QUICKTIME      THEN YES                                        ELSE NO)
  status("    QTKit:"          WITH_QUICKTIME      THEN NO                                         ELSE YES)
endif(DEFINED WITH_QUICKTIME)

if(DEFINED WITH_UNICAP)
  status("    UniCap:"         HAVE_UNICAP         THEN "YES (ver ${ALIASOF_libunicap_VERSION})"   ELSE NO)
  status("    UniCap ucil:"    HAVE_UNICAP_UCIL    THEN "YES (ver ${ALIASOF_libucil_VERSION})"     ELSE NO)
endif(DEFINED WITH_UNICAP)

if(DEFINED WITH_V4L)
  if(HAVE_CAMV4L)
    set(HAVE_CAMV4L_STR "YES")
  else()
    set(HAVE_CAMV4L_STR "NO")
  endif()
  if(HAVE_CAMV4L2)
    set(HAVE_CAMV4L2_STR "YES")
  else()
    set(HAVE_CAMV4L2_STR "NO")
  endif()
  status("    V4L/V4L2:"       HAVE_LIBV4L         THEN "Using libv4l (ver ${ALIASOF_libv4l1_VERSION})"
                                                                                                   ELSE "${HAVE_CAMV4L_STR}/${HAVE_CAMV4L2_STR}")
endif(DEFINED WITH_V4L)

if(DEFINED WITH_VIDEOINPUT)
  status("    DirectShow:"     HAVE_VIDEOINPUT     THEN YES                                        ELSE NO)
endif(DEFINED WITH_VIDEOINPUT)

if(DEFINED WITH_XIMEA)
  status("    XIMEA:"          HAVE_XIMEA          THEN YES                                        ELSE NO)
endif(DEFINED WITH_XIMEA)

if(DEFINED WITH_XINE)
  status("    Xine:"           HAVE_XINE           THEN "YES (ver ${ALIASOF_libxine_VERSION})"     ELSE NO)
endif(DEFINED WITH_XINE)

# ========================== Other third-party libraries ==========================
status("")
status("  Other third-party libraries:")

if(DEFINED WITH_IPP)
  if(WITH_IPP AND IPP_FOUND)
    status("    Use IPP:" "${IPP_LATEST_VERSION_STR} [${IPP_LATEST_VERSION_MAJOR}.${IPP_LATEST_VERSION_MINOR}.${IPP_LATEST_VERSION_BUILD}]")
    status("         at:" "${IPP_ROOT_DIR}")
  else()
    status("    Use IPP:"   WITH_IPP AND NOT IPP_FOUND THEN "IPP not found" ELSE NO)
  endif()
endif(DEFINED WITH_IPP)

if(DEFINED WITH_TBB)
  status("    Use TBB:"   HAVE_TBB   THEN "YES (ver ${TBB_VERSION_MAJOR}.${TBB_VERSION_MINOR} interface ${TBB_INTERFACE_VERSION})" ELSE NO)
endif(DEFINED WITH_TBB)

if(DEFINED WITH_CUDA)
  status("    Use Cuda:"  HAVE_CUDA  THEN "YES (ver ${CUDA_VERSION_STRING})" ELSE NO)
endif(DEFINED WITH_CUDA)

status("    Use Eigen:" HAVE_EIGEN THEN "YES (ver ${EIGEN_WORLD_VERSION}.${EIGEN_MAJOR_VERSION}.${EIGEN_MINOR_VERSION})" ELSE NO)
status("    Use Clp:"   HAVE_CLP   THEN YES ELSE NO)

if(HAVE_CUDA)
  status("")
  status("  NVIDIA CUDA:"            "(ver ${CUDA_VERSION_STRING})")

  status("    Use CUFFT:"            HAVE_CUFFT  THEN YES ELSE NO)
  status("    Use CUBLAS:"           HAVE_CUBLAS THEN YES ELSE NO)
  status("    NVIDIA GPU arch:"      ${OPENCV_CUDA_ARCH_BIN})
  status("    NVIDIA PTX archs:"     ${OPENCV_CUDA_ARCH_BIN})
  status("    NVIDIA GPU features:"  ${OPENCV_CUDA_ARCH_FEATURES})
endif()

# ========================== python ==========================
status("")
status("  Python:")
status("    Interpreter:"   PYTHON_EXECUTABLE     THEN "${PYTHON_EXECUTABLE} (ver ${PYTHON_VERSION_FULL})"         ELSE NO)
if(BUILD_opencv_python)
  if(PYTHONLIBS_VERSION_STRING)
    status("    Libraries:"     HAVE_opencv_python  THEN  "${PYTHON_LIBRARIES} (ver ${PYTHONLIBS_VERSION_STRING})" ELSE NO)
  else()
    status("    Libraries:"     HAVE_opencv_python  THEN  ${PYTHON_LIBRARIES}                                      ELSE NO)
  endif()
  status("    numpy:"         PYTHON_USE_NUMPY    THEN "${PYTHON_NUMPY_INCLUDE_DIR} (ver ${PYTHON_NUMPY_VERSION})" ELSE "NO (Python wrappers can not be generated)")
  status("    packages path:" PYTHON_EXECUTABLE   THEN "${PYTHON_PACKAGES_PATH}"                                   ELSE "-")
endif()

# ========================== documentation ==========================
if(BUILD_DOCS)
  status("")
  status("  Documentation:")
  if(HAVE_SPHINX)
    status("    Build Documentation:" PDFLATEX_COMPILER      THEN YES ELSE "YES (only HTML and without math expressions)")
  else()
    status("    Build Documentation:" NO)
  endif()
  status("    Sphinx:"              HAVE_SPHINX              THEN "${SPHINX_BUILD} (ver ${SPHINX_VERSION})" ELSE NO)
  status("    PdfLaTeX compiler:"   PDFLATEX_COMPILER        THEN "${PDFLATEX_COMPILER}" ELSE NO)
endif()

# ========================== samples and tests ==========================
status("")
status("  Tests and samples:")
status("    Tests:"             BUILD_TESTS AND HAVE_opencv_ts       THEN YES ELSE NO)
status("    Performance tests:" BUILD_PERF_TESTS AND HAVE_opencv_ts  THEN YES ELSE NO)
status("    Examples:"          BUILD_EXAMPLES                       THEN YES ELSE NO)

if(ANDROID)
  status("    Android tests:"    BUILD_TESTS AND CAN_BUILD_ANDROID_PROJECTS            THEN YES ELSE NO)
  status("    Android examples:" BUILD_ANDROID_EXAMPLES AND CAN_BUILD_ANDROID_PROJECTS THEN YES ELSE NO)
endif()

# ========================== auxiliary ==========================
status("")
status("  Install path:" "${CMAKE_INSTALL_PREFIX}")
status("")
status("  cvconfig.h is in:" "${OPENCV_CONFIG_FILE_INCLUDE_DIR}")
status("-----------------------------------------------------------------")
status("")

ocv_finalize_status()

# ----------------------------------------------------------------------------
# Warn in the case of in-source build
# ----------------------------------------------------------------------------
if("${CMAKE_CURRENT_SOURCE_DIR}" STREQUAL "${CMAKE_CURRENT_BINARY_DIR}")
  message(WARNING "The source directory is the same as binary directory. \"make clean\" may damage the source tree")
endif()