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# ----------------------------------------------------------------------------
# Detect 3rd-party image IO libraries
# ----------------------------------------------------------------------------
# --- zlib (required) ---
if(BUILD_ZLIB)
ocv_clear_vars(ZLIB_FOUND)
else()
include(FindZLIB)
if(ZLIB_FOUND AND ANDROID)
if(ZLIB_LIBRARY STREQUAL "${ANDROID_SYSROOT}/usr/lib/libz.so")
set(ZLIB_LIBRARY z)
set(ZLIB_LIBRARIES z)
endif()
endif()
endif()
if(NOT ZLIB_FOUND)
ocv_clear_vars(ZLIB_LIBRARY ZLIB_LIBRARIES ZLIB_INCLUDE_DIR)
set(ZLIB_LIBRARY zlib)
set(ZLIB_LIBRARIES ${ZLIB_LIBRARY})
add_subdirectory("${OpenCV_SOURCE_DIR}/3rdparty/zlib")
set(ZLIB_INCLUDE_DIR "${${ZLIB_LIBRARY}_SOURCE_DIR}" "${${ZLIB_LIBRARY}_BINARY_DIR}")
ocv_parse_header2(ZLIB "${${ZLIB_LIBRARY}_SOURCE_DIR}/zlib.h" ZLIB_VERSION)
endif()
# --- libtiff (optional, should be searched after zlib) ---
if(WITH_TIFF)
if(BUILD_TIFF)
ocv_clear_vars(TIFF_FOUND)
else()
include(FindTIFF)
if(TIFF_FOUND)
ocv_parse_header("${TIFF_INCLUDE_DIR}/tiff.h" TIFF_VERSION_LINES TIFF_VERSION_CLASSIC TIFF_VERSION_BIG TIFF_VERSION TIFF_BIGTIFF_VERSION)
endif()
endif()
if(NOT TIFF_FOUND)
ocv_clear_vars(TIFF_LIBRARY TIFF_LIBRARIES TIFF_INCLUDE_DIR)
set(TIFF_LIBRARY libtiff)
set(TIFF_LIBRARIES ${TIFF_LIBRARY})
add_subdirectory("${OpenCV_SOURCE_DIR}/3rdparty/libtiff")
set(TIFF_INCLUDE_DIR "${${TIFF_LIBRARY}_SOURCE_DIR}" "${${TIFF_LIBRARY}_BINARY_DIR}")
ocv_parse_header("${${TIFF_LIBRARY}_SOURCE_DIR}/tiff.h" TIFF_VERSION_LINES TIFF_VERSION_CLASSIC TIFF_VERSION_BIG TIFF_VERSION TIFF_BIGTIFF_VERSION)
endif()
if(TIFF_VERSION_CLASSIC AND NOT TIFF_VERSION)
set(TIFF_VERSION ${TIFF_VERSION_CLASSIC})
endif()
if(TIFF_BIGTIFF_VERSION AND NOT TIFF_VERSION_BIG)
set(TIFF_VERSION_BIG ${TIFF_BIGTIFF_VERSION})
endif()
if(NOT TIFF_VERSION_STRING AND TIFF_INCLUDE_DIR)
list(GET TIFF_INCLUDE_DIR 0 _TIFF_INCLUDE_DIR)
if(EXISTS "${_TIFF_INCLUDE_DIR}/tiffvers.h")
file(STRINGS "${_TIFF_INCLUDE_DIR}/tiffvers.h" tiff_version_str REGEX "^#define[\t ]+TIFFLIB_VERSION_STR[\t ]+\"LIBTIFF, Version .*")
string(REGEX REPLACE "^#define[\t ]+TIFFLIB_VERSION_STR[\t ]+\"LIBTIFF, Version +([^ \\n]*).*" "\\1" TIFF_VERSION_STRING "${tiff_version_str}")
unset(tiff_version_str)
endif()
unset(_TIFF_INCLUDE_DIR)
endif()
set(HAVE_TIFF YES)
endif()
# --- libjpeg (optional) ---
if(WITH_JPEG)
if(BUILD_JPEG)
ocv_clear_vars(JPEG_FOUND)
else()
include(FindJPEG)
endif()
if(NOT JPEG_FOUND)
ocv_clear_vars(JPEG_LIBRARY JPEG_LIBRARIES JPEG_INCLUDE_DIR)
set(JPEG_LIBRARY libjpeg)
set(JPEG_LIBRARIES ${JPEG_LIBRARY})
add_subdirectory("${OpenCV_SOURCE_DIR}/3rdparty/libjpeg")
set(JPEG_INCLUDE_DIR "${${JPEG_LIBRARY}_SOURCE_DIR}")
endif()
ocv_parse_header("${JPEG_INCLUDE_DIR}/jpeglib.h" JPEG_VERSION_LINES JPEG_LIB_VERSION)
set(HAVE_JPEG YES)
endif()
# --- libjasper (optional, should be searched after libjpeg) ---
if(WITH_JASPER)
if(BUILD_JASPER)
ocv_clear_vars(JASPER_FOUND)
else()
include(FindJasper)
endif()
if(NOT JASPER_FOUND)
ocv_clear_vars(JASPER_LIBRARY JASPER_LIBRARIES JASPER_INCLUDE_DIR)
set(JASPER_LIBRARY libjasper)
set(JASPER_LIBRARIES ${JASPER_LIBRARY})
add_subdirectory("${OpenCV_SOURCE_DIR}/3rdparty/libjasper")
set(JASPER_INCLUDE_DIR "${${JASPER_LIBRARY}_SOURCE_DIR}")
endif()
set(HAVE_JASPER YES)
if(NOT JASPER_VERSION_STRING)
ocv_parse_header2(JASPER "${JASPER_INCLUDE_DIR}/jasper/jas_config.h" JAS_VERSION "")
endif()
endif()
# --- libpng (optional, should be searched after zlib) ---
if(WITH_PNG)
if(BUILD_PNG)
ocv_clear_vars(PNG_FOUND)
else()
include(FindPNG)
if(PNG_FOUND)
include(CheckIncludeFile)
check_include_file("${PNG_PNG_INCLUDE_DIR}/libpng/png.h" HAVE_LIBPNG_PNG_H)
if(HAVE_LIBPNG_PNG_H)
ocv_parse_header("${PNG_PNG_INCLUDE_DIR}/libpng/png.h" PNG_VERSION_LINES PNG_LIBPNG_VER_MAJOR PNG_LIBPNG_VER_MINOR PNG_LIBPNG_VER_RELEASE)
else()
ocv_parse_header("${PNG_PNG_INCLUDE_DIR}/png.h" PNG_VERSION_LINES PNG_LIBPNG_VER_MAJOR PNG_LIBPNG_VER_MINOR PNG_LIBPNG_VER_RELEASE)
endif()
endif()
endif()
if(NOT PNG_FOUND)
ocv_clear_vars(PNG_LIBRARY PNG_LIBRARIES PNG_INCLUDE_DIR PNG_PNG_INCLUDE_DIR HAVE_LIBPNG_PNG_H PNG_DEFINITIONS)
set(PNG_LIBRARY libpng)
set(PNG_LIBRARIES ${PNG_LIBRARY})
add_subdirectory("${OpenCV_SOURCE_DIR}/3rdparty/libpng")
set(PNG_INCLUDE_DIR "${${PNG_LIBRARY}_SOURCE_DIR}")
set(PNG_DEFINITIONS "")
ocv_parse_header("${PNG_INCLUDE_DIR}/png.h" PNG_VERSION_LINES PNG_LIBPNG_VER_MAJOR PNG_LIBPNG_VER_MINOR PNG_LIBPNG_VER_RELEASE)
endif()
set(HAVE_PNG YES)
set(PNG_VERSION "${PNG_LIBPNG_VER_MAJOR}.${PNG_LIBPNG_VER_MINOR}.${PNG_LIBPNG_VER_RELEASE}")
endif()
# --- OpenEXR (optional) ---
if(WITH_OPENEXR)
if(BUILD_OPENEXR)
ocv_clear_vars(OPENEXR_FOUND)
else()
include("${OpenCV_SOURCE_DIR}/cmake/OpenCVFindOpenEXR.cmake")
endif()
if(NOT OPENEXR_FOUND)
ocv_clear_vars(OPENEXR_INCLUDE_PATHS OPENEXR_LIBRARIES OPENEXR_ILMIMF_LIBRARY OPENEXR_VERSION)
set(OPENEXR_LIBRARIES IlmImf)
set(OPENEXR_ILMIMF_LIBRARY IlmImf)
add_subdirectory("${OpenCV_SOURCE_DIR}/3rdparty/openexr")
endif()
set(HAVE_OPENEXR YES)
endif()
#cmake 2.8.2 bug - it fails to determine zlib version
if(ZLIB_FOUND)
ocv_parse_header2(ZLIB "${ZLIB_INCLUDE_DIR}/zlib.h" ZLIB_VERSION)
endif()
# --- Apple ImageIO ---
if(WITH_IMAGEIO)
set(HAVE_IMAGEIO YES)
endif()
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