Win32: Get 32-bit Windows build working

Also includes changes to allow simultaneous 32-bit and 64-bit Windows builds.

1 files changed, 349 insertions, 0 deletions

diff --git a/cmake/FindImageMagick.cmake b/cmake/FindImageMagick.cmake
new file mode 100644
index 00000000..c0b88518
--- /dev/null
+++ b/cmake/FindImageMagick.cmake
@@ -0,0 +1,349 @@
+#.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.).
+
+#=============================================================================
+# Copyright 2007-2009 Kitware, Inc.
+# Copyright 2007-2008 Miguel A. Figueroa-Villanueva <miguelf at ieee dot org>
+# Copyright 2012 Rolf Eike Beer <eike@sf-mail.de>
+#
+# Distributed under the OSI-approved BSD License (the "License");
+# see accompanying file Copyright.txt for details.
+#
+# This software is distributed WITHOUT ANY WARRANTY; without even the
+# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+# See the License for more information.
+#=============================================================================
+# (To distribute this file outside of CMake, substitute the full
+#  License text for the above reference.)
+
+find_package(PkgConfig QUIET)
+
+function(FIND_REGISTRY)
+  if (WIN32)
+    # If a 64-bit compile, it can only appear in "[HKLM]\\software\\ImageMagick"
+    if (CMAKE_CL_64)
+    
+      set (IMAGEMAGIC_REG_PATH "[HKEY_LOCAL_MACHINE\\SOFTWARE\\ImageMagick\\Current;BinPath]" PARENT_SCOPE)
+      set (IMAGEMAGIC_REGINCLUDE_PATH "[HKEY_LOCAL_MACHINE\\SOFTWARE\\ImageMagick\\Current;BinPath]/include" PARENT_SCOPE)
+      set (IMAGEMAGIC_REGLIB_PATH "[HKEY_LOCAL_MACHINE\\SOFTWARE\\ImageMagick\\Current;BinPath]/lib" PARENT_SCOPE)
+      
+    else()
+    
+      # This is dumb, but it's the only way I've been able to get this to work.  CMake has no knowledge of the systems architecture.
+      # So, if we want to detect if we're running a 32-bit compile on a 64-bit OS, we need to manually check for the existence of
+      # ImageMagick in the WOW6432Node of the registry first.  If that fails, assume they want the 64-bit version.
+      GET_FILENAME_COMPONENT(TESTING  
+        [HKEY_LOCAL_MACHINE\\SOFTWARE\\WOW6432Node\\ImageMagick\\Current;BinPath]
+        PATH)
+
+      # If a 32-bit compile on a 64-bit Windows, it appears in "[HKLM]\\software\\WOW6432Node\\ImageMagick"
+      if (TESTING STREQUAL "C:/Program Files (x86)")
+      
+        set (IMAGEMAGIC_REG_PATH [HKEY_LOCAL_MACHINE\\SOFTWARE\\WOW6432Node\\ImageMagick\\Current;BinPath] PARENT_SCOPE)
+        set (IMAGEMAGIC_REGINCLUDE_PATH [HKEY_LOCAL_MACHINE\\SOFTWARE\\WOW6432Node\\ImageMagick\\Current;BinPath]/include PARENT_SCOPE)
+        set (IMAGEMAGIC_REGLIB_PATH [HKEY_LOCAL_MACHINE\\SOFTWARE\\WOW6432Node\\ImageMagick\\Current;BinPath]/lib PARENT_SCOPE)
+        
+      # If a 32-bit compile on a 32-bit Windows, it appears in "[HKLM]\\software\\ImageMagick"
+      else()
+      
+        set (IMAGEMAGIC_REG_PATH [HKEY_LOCAL_MACHINE\\SOFTWARE\\ImageMagick\\Current;BinPath] PARENT_SCOPE)
+        set (IMAGEMAGIC_REGINCLUDE_PATH [HKEY_LOCAL_MACHINE\\SOFTWARE\\ImageMagick\\Current;BinPath]/include PARENT_SCOPE)
+        set (IMAGEMAGIC_REGLIB_PATH [HKEY_LOCAL_MACHINE\\SOFTWARE\\ImageMagick\\Current;BinPath]/lib PARENT_SCOPE)
+        
+      endif()
+      
+    endif()
+  else()
+  
+  message(WARNING "In FIND_REGISTRY:  LINUX_BUILD")
+    set (IMAGEMAGIC_REG_PATH "" PARENT_SCOPE)
+    set (IMAGEMAGIC_REGINCLUDE_PATH "" PARENT_SCOPE)
+    set (IMAGEMAGIC_REGLIB_PATH "" PARENT_SCOPE)
+    
+  endif()
+endfunction()
+
+
+#---------------------------------------------------------------------
+# 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
+      ${IMAGEMAGIC_REGINCLUDE_PATH}
+      ${PC_${component}_INCLUDEDIR}
+      ${PC_${component}_INCLUDE_DIRS}
+    PATHS
+      ${ImageMagick_INCLUDE_DIRS}
+      ${IMAGEMAGIC_REGINCLUDE_PATH}
+    PATH_SUFFIXES
+      ImageMagick ImageMagick-6
+    DOC "Path to the ImageMagick arch-independent include dir."
+    )
+  find_path(ImageMagick_${component}_ARCH_INCLUDE_DIR
+    NAMES magick/magick-baseconfig.h
+    HINTS
+      ${IMAGEMAGIC_REGINCLUDE_PATH}
+      ${PC_${component}_INCLUDEDIR}
+      ${PC_${component}_INCLUDE_DIRS}
+    PATHS
+      ${ImageMagick_INCLUDE_DIRS}
+      ${IMAGEMAGIC_REGINCLUDE_PATH}
+    PATH_SUFFIXES
+      ImageMagick ImageMagick-6
+    DOC "Path to the ImageMagick arch-specific include dir."
+    )
+  find_library(ImageMagick_${component}_LIBRARY
+    NAMES ${ARGN}
+    HINTS
+      ${IMAGEMAGIC_REGLIB_PATH}
+      ${PC_${component}_LIBDIR}
+      ${PC_${component}_LIB_DIRS}
+    PATHS
+      ${IMAGEMAGIC_REGLIB_PATH}
+    DOC "Path to the ImageMagick Magick++ library."
+    )
+
+  # old version have only indep dir
+  if(ImageMagick_${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_${component}_FOUND FALSE PARENT_SCOPE)
+  endif()
+endfunction()
+
+#---------------------------------------------------------------------
+# Start Actual Work
+#---------------------------------------------------------------------
+FIND_REGISTRY()
+
+# Try to find a ImageMagick installation binary path.
+find_path(ImageMagick_EXECUTABLE_DIR
+  NAMES mogrify${CMAKE_EXECUTABLE_SUFFIX}
+  PATHS
+    ${IMAGEMAGIC_REG_PATH}
+  DOC "Path to the ImageMagick binary directory."
+  NO_DEFAULT_PATH
+  )
+find_path(ImageMagick_EXECUTABLE_DIR
+  NAMES mogrify${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
+  )