CMake/Modules/FindImageMagick.cmake

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Simplify CMake per-source license notices Per-source copyright/license notice headers that spell out copyright holder names and years are hard to maintain and often out-of-date or plain wrong. Precise contributor information is already maintained automatically by the version control tool. Ultimately it is the receiver of a file who is responsible for determining its licensing status, and per-source notices are merely a convenience. Therefore it is simpler and more accurate for each source to have a generic notice of the license name and references to more detailed information on copyright holders and full license terms. Our `Copyright.txt` file now contains a list of Contributors whose names appeared source-level copyright notices. It also references version control history for more precise information. Therefore we no longer need to spell out the list of Contributors in each source file notice. Replace CMake per-source copyright/license notice headers with a short description of the license and links to `Copyright.txt` and online information available from "https://cmake.org/licensing". The online URL also handles cases of modules being copied out of our source into other projects, so we can drop our notices about replacing links with full license text. Run the `Utilities/Scripts/filter-notices.bash` script to perform the majority of the replacements mechanically. Manually fix up shebang lines and trailing newlines in a few files. Manually update the notices in a few files that the script does not handle.
2016-09-27 22:01:08 +03:00
# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
# file Copyright.txt or https://cmake.org/licensing for details.
#.rst:
# FindImageMagick
# ---------------
#
# Find the ImageMagick binary suite.
#
# This module will search for a set of ImageMagick tools specified as
# components in the FIND_PACKAGE call. Typical components include, but
# are not limited to (future versions of ImageMagick might have
# additional components not listed here):
#
# ::
#
# animate
# compare
# composite
# conjure
# convert
# display
# identify
# import
# mogrify
# montage
# stream
#
#
#
# If no component is specified in the FIND_PACKAGE call, then it only
# searches for the ImageMagick executable directory. This code defines
# the following variables:
#
# ::
#
# ImageMagick_FOUND - TRUE if all components are found.
# ImageMagick_EXECUTABLE_DIR - Full path to executables directory.
# ImageMagick_<component>_FOUND - TRUE if <component> is found.
# ImageMagick_<component>_EXECUTABLE - Full path to <component> executable.
# ImageMagick_VERSION_STRING - the version of ImageMagick found
# (since CMake 2.8.8)
#
#
#
# ImageMagick_VERSION_STRING will not work for old versions like 5.2.3.
#
# There are also components for the following ImageMagick APIs:
#
# ::
#
# Magick++
# MagickWand
# MagickCore
#
#
#
# For these components the following variables are set:
#
# ::
#
# ImageMagick_FOUND - TRUE if all components are found.
# ImageMagick_INCLUDE_DIRS - Full paths to all include dirs.
# ImageMagick_LIBRARIES - Full paths to all libraries.
# ImageMagick_<component>_FOUND - TRUE if <component> is found.
# ImageMagick_<component>_INCLUDE_DIRS - Full path to <component> include dirs.
# ImageMagick_<component>_LIBRARIES - Full path to <component> libraries.
#
#
#
# Example Usages:
#
# ::
#
# find_package(ImageMagick)
# find_package(ImageMagick COMPONENTS convert)
# find_package(ImageMagick COMPONENTS convert mogrify display)
# find_package(ImageMagick COMPONENTS Magick++)
# find_package(ImageMagick COMPONENTS Magick++ convert)
#
#
#
# Note that the standard FIND_PACKAGE features are supported (i.e.,
# QUIET, REQUIRED, etc.).
find_package(PkgConfig QUIET)
#---------------------------------------------------------------------
# Helper functions
#---------------------------------------------------------------------
function(FIND_IMAGEMAGICK_API component header)
set(ImageMagick_${component}_FOUND FALSE PARENT_SCOPE)
pkg_check_modules(PC_${component} QUIET ${component})
find_path(ImageMagick_${component}_INCLUDE_DIR
NAMES ${header}
HINTS
${PC_${component}_INCLUDEDIR}
${PC_${component}_INCLUDE_DIRS}
PATHS
${ImageMagick_INCLUDE_DIRS}
"[HKEY_LOCAL_MACHINE\\SOFTWARE\\ImageMagick\\Current;BinPath]/include"
PATH_SUFFIXES
ImageMagick ImageMagick-6
DOC "Path to the ImageMagick arch-independent include dir."
)
find_path(ImageMagick_${component}_ARCH_INCLUDE_DIR
NAMES magick/magick-baseconfig.h
HINTS
${PC_${component}_INCLUDEDIR}
${PC_${component}_INCLUDE_DIRS}
PATHS
${ImageMagick_INCLUDE_DIRS}
"[HKEY_LOCAL_MACHINE\\SOFTWARE\\ImageMagick\\Current;BinPath]/include"
PATH_SUFFIXES
ImageMagick ImageMagick-6
DOC "Path to the ImageMagick arch-specific include dir."
)
find_library(ImageMagick_${component}_LIBRARY
NAMES ${ARGN}
HINTS
${PC_${component}_LIBDIR}
${PC_${component}_LIB_DIRS}
PATHS
"[HKEY_LOCAL_MACHINE\\SOFTWARE\\ImageMagick\\Current;BinPath]/lib"
DOC "Path to the ImageMagick Magick++ library."
)
# old version have only indep dir
if(ImageMagick_${component}_INCLUDE_DIR AND ImageMagick_${component}_LIBRARY)
set(ImageMagick_${component}_FOUND TRUE PARENT_SCOPE)
# Construct per-component include directories.
set(ImageMagick_${component}_INCLUDE_DIRS
${ImageMagick_${component}_INCLUDE_DIR}
)
if(ImageMagick_${component}_ARCH_INCLUDE_DIR)
list(APPEND ImageMagick_${component}_INCLUDE_DIRS
${ImageMagick_${component}_ARCH_INCLUDE_DIR})
endif()
list(REMOVE_DUPLICATES ImageMagick_${component}_INCLUDE_DIRS)
set(ImageMagick_${component}_INCLUDE_DIRS
${ImageMagick_${component}_INCLUDE_DIRS} PARENT_SCOPE)
# Add the per-component include directories to the full include dirs.
list(APPEND ImageMagick_INCLUDE_DIRS ${ImageMagick_${component}_INCLUDE_DIRS})
list(REMOVE_DUPLICATES ImageMagick_INCLUDE_DIRS)
set(ImageMagick_INCLUDE_DIRS ${ImageMagick_INCLUDE_DIRS} PARENT_SCOPE)
list(APPEND ImageMagick_LIBRARIES
${ImageMagick_${component}_LIBRARY}
)
set(ImageMagick_LIBRARIES ${ImageMagick_LIBRARIES} PARENT_SCOPE)
endif()
endfunction()
function(FIND_IMAGEMAGICK_EXE component)
set(_IMAGEMAGICK_EXECUTABLE
${ImageMagick_EXECUTABLE_DIR}/${component}${CMAKE_EXECUTABLE_SUFFIX})
if(EXISTS ${_IMAGEMAGICK_EXECUTABLE})
set(ImageMagick_${component}_EXECUTABLE
${_IMAGEMAGICK_EXECUTABLE}
PARENT_SCOPE
)
set(ImageMagick_${component}_FOUND TRUE PARENT_SCOPE)
else()
set(ImageMagick_${component}_FOUND FALSE PARENT_SCOPE)
endif()
endfunction()
#---------------------------------------------------------------------
# Start Actual Work
#---------------------------------------------------------------------
# Try to find a ImageMagick installation binary path.
find_path(ImageMagick_EXECUTABLE_DIR
NAMES mogrify${CMAKE_EXECUTABLE_SUFFIX}
PATHS
"[HKEY_LOCAL_MACHINE\\SOFTWARE\\ImageMagick\\Current;BinPath]"
DOC "Path to the ImageMagick binary directory."
NO_DEFAULT_PATH
)
find_path(ImageMagick_EXECUTABLE_DIR
NAMES mogrify${CMAKE_EXECUTABLE_SUFFIX}
)
# Find each component. Search for all tools in same dir
# <ImageMagick_EXECUTABLE_DIR>; otherwise they should be found
# independently and not in a cohesive module such as this one.
unset(ImageMagick_REQUIRED_VARS)
unset(ImageMagick_DEFAULT_EXECUTABLES)
foreach(component ${ImageMagick_FIND_COMPONENTS}
# DEPRECATED: forced components for backward compatibility
convert mogrify import montage composite
)
if(component STREQUAL "Magick++")
FIND_IMAGEMAGICK_API(Magick++ Magick++.h
Magick++ CORE_RL_Magick++_ Magick++-6.Q16 Magick++-Q16 Magick++-6.Q8 Magick++-Q8 Magick++-6.Q16HDRI Magick++-Q16HDRI Magick++-6.Q8HDRI Magick++-Q8HDRI
)
list(APPEND ImageMagick_REQUIRED_VARS ImageMagick_Magick++_LIBRARY)
elseif(component STREQUAL "MagickWand")
FIND_IMAGEMAGICK_API(MagickWand wand/MagickWand.h
Wand MagickWand CORE_RL_wand_ MagickWand-6.Q16 MagickWand-Q16 MagickWand-6.Q8 MagickWand-Q8 MagickWand-6.Q16HDRI MagickWand-Q16HDRI MagickWand-6.Q8HDRI MagickWand-Q8HDRI
)
list(APPEND ImageMagick_REQUIRED_VARS ImageMagick_MagickWand_LIBRARY)
elseif(component STREQUAL "MagickCore")
FIND_IMAGEMAGICK_API(MagickCore magick/MagickCore.h
Magick MagickCore CORE_RL_magick_ MagickCore-6.Q16 MagickCore-Q16 MagickCore-6.Q8 MagickCore-Q8 MagickCore-6.Q16HDRI MagickCore-Q16HDRI MagickCore-6.Q8HDRI MagickCore-Q8HDRI
)
list(APPEND ImageMagick_REQUIRED_VARS ImageMagick_MagickCore_LIBRARY)
else()
if(ImageMagick_EXECUTABLE_DIR)
FIND_IMAGEMAGICK_EXE(${component})
endif()
if(ImageMagick_FIND_COMPONENTS)
list(FIND ImageMagick_FIND_COMPONENTS ${component} is_requested)
if(is_requested GREATER -1)
list(APPEND ImageMagick_REQUIRED_VARS ImageMagick_${component}_EXECUTABLE)
endif()
elseif(ImageMagick_${component}_EXECUTABLE)
# if no components were requested explicitly put all (default) executables
# in the list
list(APPEND ImageMagick_DEFAULT_EXECUTABLES ImageMagick_${component}_EXECUTABLE)
endif()
endif()
endforeach()
if(NOT ImageMagick_FIND_COMPONENTS AND NOT ImageMagick_DEFAULT_EXECUTABLES)
# No components were requested, and none of the default components were
# found. Just insert mogrify into the list of the default components to
# find so FPHSA below has something to check
list(APPEND ImageMagick_REQUIRED_VARS ImageMagick_mogrify_EXECUTABLE)
elseif(ImageMagick_DEFAULT_EXECUTABLES)
list(APPEND ImageMagick_REQUIRED_VARS ${ImageMagick_DEFAULT_EXECUTABLES})
endif()
set(ImageMagick_INCLUDE_DIRS ${ImageMagick_INCLUDE_DIRS})
set(ImageMagick_LIBRARIES ${ImageMagick_LIBRARIES})
if(ImageMagick_mogrify_EXECUTABLE)
execute_process(COMMAND ${ImageMagick_mogrify_EXECUTABLE} -version
OUTPUT_VARIABLE imagemagick_version
ERROR_QUIET
OUTPUT_STRIP_TRAILING_WHITESPACE)
if(imagemagick_version MATCHES "^Version: ImageMagick ([-0-9\\.]+)")
set(ImageMagick_VERSION_STRING "${CMAKE_MATCH_1}")
endif()
unset(imagemagick_version)
endif()
#---------------------------------------------------------------------
# Standard Package Output
#---------------------------------------------------------------------
include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)
FIND_PACKAGE_HANDLE_STANDARD_ARGS(ImageMagick
REQUIRED_VARS ${ImageMagick_REQUIRED_VARS}
VERSION_VAR ImageMagick_VERSION_STRING
)
# Maintain consistency with all other variables.
set(ImageMagick_FOUND ${IMAGEMAGICK_FOUND})
#---------------------------------------------------------------------
# DEPRECATED: Setting variables for backward compatibility.
#---------------------------------------------------------------------
set(IMAGEMAGICK_BINARY_PATH ${ImageMagick_EXECUTABLE_DIR}
CACHE PATH "Path to the ImageMagick binary directory.")
set(IMAGEMAGICK_CONVERT_EXECUTABLE ${ImageMagick_convert_EXECUTABLE}
CACHE FILEPATH "Path to ImageMagick's convert executable.")
set(IMAGEMAGICK_MOGRIFY_EXECUTABLE ${ImageMagick_mogrify_EXECUTABLE}
CACHE FILEPATH "Path to ImageMagick's mogrify executable.")
set(IMAGEMAGICK_IMPORT_EXECUTABLE ${ImageMagick_import_EXECUTABLE}
CACHE FILEPATH "Path to ImageMagick's import executable.")
set(IMAGEMAGICK_MONTAGE_EXECUTABLE ${ImageMagick_montage_EXECUTABLE}
CACHE FILEPATH "Path to ImageMagick's montage executable.")
set(IMAGEMAGICK_COMPOSITE_EXECUTABLE ${ImageMagick_composite_EXECUTABLE}
CACHE FILEPATH "Path to ImageMagick's composite executable.")
mark_as_advanced(
IMAGEMAGICK_BINARY_PATH
IMAGEMAGICK_CONVERT_EXECUTABLE
IMAGEMAGICK_MOGRIFY_EXECUTABLE
IMAGEMAGICK_IMPORT_EXECUTABLE
IMAGEMAGICK_MONTAGE_EXECUTABLE
IMAGEMAGICK_COMPOSITE_EXECUTABLE
)