1 # - Find OpenSceneGraph
2 # This module searches for the OpenSceneGraph core "osg" library as well as
3 # OpenThreads, and whatever additional COMPONENTS (nodekits) that you specify.
4 # See http://www.openscenegraph.org
6 # NOTE: To use this module effectively you must either require CMake >= 2.6.3
7 # with cmake_minimum_required(VERSION 2.6.3) or download and place
8 # FindOpenThreads.cmake, Findosg_functions.cmake, Findosg.cmake,
9 # and Find<etc>.cmake files into your CMAKE_MODULE_PATH.
11 #==================================
13 # This module accepts the following variables (note mixed case)
15 # OpenSceneGraph_DEBUG - Enable debugging output
17 # OpenSceneGraph_MARK_AS_ADVANCED - Mark cache variables as advanced
20 # The following environment variables are also respected for finding the OSG
21 # and it's various components. CMAKE_PREFIX_PATH can also be used for this
22 # (see find_library() CMake documentation).
24 # <MODULE>_DIR (where MODULE is of the form "OSGVOLUME" and there is a FindosgVolume.cmake file)
30 # The CMake variable OSG_DIR can now be used as well to influence detection, instead of needing
31 # to specify an environment variable.
33 # This module defines the following output variables:
35 # OPENSCENEGRAPH_FOUND - Was the OSG and all of the specified components found?
37 # OPENSCENEGRAPH_VERSION - The version of the OSG which was found
39 # OPENSCENEGRAPH_INCLUDE_DIRS - Where to find the headers
41 # OPENSCENEGRAPH_LIBRARIES - The OSG libraries
43 #==================================
46 # find_package(OpenSceneGraph 2.0.0 REQUIRED osgDB osgUtil)
47 # # libOpenThreads & libosg automatically searched
48 # include_directories(${OPENSCENEGRAPH_INCLUDE_DIRS})
50 # add_executable(foo foo.cc)
51 # target_link_libraries(foo ${OPENSCENEGRAPH_LIBRARIES})
54 #=============================================================================
55 # Copyright 2009 Kitware, Inc.
56 # Copyright 2009-2012 Philip Lowman <philip@yhbt.com>
58 # Distributed under the OSI-approved BSD License (the "License");
59 # see accompanying file Copyright.txt for details.
61 # This software is distributed WITHOUT ANY WARRANTY; without even the
62 # implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
63 # See the License for more information.
64 #=============================================================================
65 # (To distribute this file outside of CMake, substitute the full
66 # License text for the above reference.)
70 # Local variables of the form _osg_foo
71 # Input variables of the form OpenSceneGraph_FOO
72 # Output variables of the form OPENSCENEGRAPH_FOO
75 include(Findosg_functions)
77 set(_osg_modules_to_process)
78 foreach(_osg_component ${OpenSceneGraph_FIND_COMPONENTS})
79 list(APPEND _osg_modules_to_process ${_osg_component})
81 list(APPEND _osg_modules_to_process "osg" "OpenThreads")
82 list(REMOVE_DUPLICATES _osg_modules_to_process)
84 if(OpenSceneGraph_DEBUG)
85 message(STATUS "[ FindOpenSceneGraph.cmake:${CMAKE_CURRENT_LIST_LINE} ] "
86 "Components = ${_osg_modules_to_process}")
90 # First we need to find and parse osg/Version
92 OSG_FIND_PATH(OSG osg/Version)
93 if(OpenSceneGraph_MARK_AS_ADVANCED)
94 OSG_MARK_AS_ADVANCED(OSG)
97 # Try to ascertain the version...
99 if(OpenSceneGraph_DEBUG)
100 message(STATUS "[ FindOpenSceneGraph.cmake:${CMAKE_CURRENT_LIST_LINE} ] "
101 "Detected OSG_INCLUDE_DIR = ${OSG_INCLUDE_DIR}")
104 set(_osg_Version_file "${OSG_INCLUDE_DIR}/osg/Version")
105 if("${OSG_INCLUDE_DIR}" MATCHES "\\.framework$" AND NOT EXISTS "${_osg_Version_file}")
106 set(_osg_Version_file "${OSG_INCLUDE_DIR}/Headers/Version")
109 if(EXISTS "${_osg_Version_file}")
110 file(STRINGS "${_osg_Version_file}" _osg_Version_contents
111 REGEX "#define (OSG_VERSION_[A-Z]+|OPENSCENEGRAPH_[A-Z]+_VERSION)[ \t]+[0-9]+")
113 set(_osg_Version_contents "unknown")
116 string(REGEX MATCH ".*#define OSG_VERSION_MAJOR[ \t]+[0-9]+.*"
117 _osg_old_defines "${_osg_Version_contents}")
118 string(REGEX MATCH ".*#define OPENSCENEGRAPH_MAJOR_VERSION[ \t]+[0-9]+.*"
119 _osg_new_defines "${_osg_Version_contents}")
121 string(REGEX REPLACE ".*#define OSG_VERSION_MAJOR[ \t]+([0-9]+).*"
122 "\\1" _osg_VERSION_MAJOR ${_osg_Version_contents})
123 string(REGEX REPLACE ".*#define OSG_VERSION_MINOR[ \t]+([0-9]+).*"
124 "\\1" _osg_VERSION_MINOR ${_osg_Version_contents})
125 string(REGEX REPLACE ".*#define OSG_VERSION_PATCH[ \t]+([0-9]+).*"
126 "\\1" _osg_VERSION_PATCH ${_osg_Version_contents})
127 elseif(_osg_new_defines)
128 string(REGEX REPLACE ".*#define OPENSCENEGRAPH_MAJOR_VERSION[ \t]+([0-9]+).*"
129 "\\1" _osg_VERSION_MAJOR ${_osg_Version_contents})
130 string(REGEX REPLACE ".*#define OPENSCENEGRAPH_MINOR_VERSION[ \t]+([0-9]+).*"
131 "\\1" _osg_VERSION_MINOR ${_osg_Version_contents})
132 string(REGEX REPLACE ".*#define OPENSCENEGRAPH_PATCH_VERSION[ \t]+([0-9]+).*"
133 "\\1" _osg_VERSION_PATCH ${_osg_Version_contents})
135 message(WARNING "[ FindOpenSceneGraph.cmake:${CMAKE_CURRENT_LIST_LINE} ] "
136 "Failed to parse version number, please report this as a bug")
138 unset(_osg_Version_contents)
140 set(OPENSCENEGRAPH_VERSION "${_osg_VERSION_MAJOR}.${_osg_VERSION_MINOR}.${_osg_VERSION_PATCH}"
141 CACHE INTERNAL "The version of OSG which was detected")
142 if(OpenSceneGraph_DEBUG)
143 message(STATUS "[ FindOpenSceneGraph.cmake:${CMAKE_CURRENT_LIST_LINE} ] "
144 "Detected version ${OPENSCENEGRAPH_VERSION}")
149 if(OpenSceneGraph_FIND_QUIETLY)
150 set(_osg_quiet "QUIET")
153 # Here we call find_package() on all of the components
155 foreach(_osg_module ${_osg_modules_to_process})
156 if(OpenSceneGraph_DEBUG)
157 message(STATUS "[ FindOpenSceneGraph.cmake:${CMAKE_CURRENT_LIST_LINE} ] "
158 "Calling find_package(${_osg_module} ${_osg_required} ${_osg_quiet})")
160 find_package(${_osg_module} ${_osg_quiet})
162 string(TOUPPER ${_osg_module} _osg_module_UC)
163 list(APPEND OPENSCENEGRAPH_INCLUDE_DIR ${${_osg_module_UC}_INCLUDE_DIR})
164 list(APPEND OPENSCENEGRAPH_LIBRARIES ${${_osg_module_UC}_LIBRARIES})
166 if(OpenSceneGraph_MARK_AS_ADVANCED)
167 OSG_MARK_AS_ADVANCED(${_osg_module})
171 if(OPENSCENEGRAPH_INCLUDE_DIR)
172 list(REMOVE_DUPLICATES OPENSCENEGRAPH_INCLUDE_DIR)
176 # Check each module to see if it's found
178 set(_osg_component_founds)
179 if(OpenSceneGraph_FIND_REQUIRED)
180 foreach(_osg_module ${_osg_modules_to_process})
181 string(TOUPPER ${_osg_module} _osg_module_UC)
182 list(APPEND _osg_component_founds ${_osg_module_UC}_FOUND)
186 include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)
187 FIND_PACKAGE_HANDLE_STANDARD_ARGS(OpenSceneGraph
188 REQUIRED_VARS OPENSCENEGRAPH_LIBRARIES OPENSCENEGRAPH_INCLUDE_DIR ${_osg_component_founds}
189 VERSION_VAR OPENSCENEGRAPH_VERSION)
191 unset(_osg_component_founds)
193 set(OPENSCENEGRAPH_INCLUDE_DIRS ${OPENSCENEGRAPH_INCLUDE_DIR})