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#===============================================================================
# Copyright (C) 2018 Open Source Robotics Foundation
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
########################################
#--------------------------------------
# Find OGRE headers and libraries
#
# Usage of this module as follows:
#
# ign_find_package(IgnOGRE)
#
# Variables defined by this module:
#
# OGRE_FOUND System has OGRE libs/headers
# OGRE_LIBRARIES The OGRE libraries
# OGRE_INCLUDE_DIRS The location of OGRE headers
# OGRE_VERSION Full OGRE version in the form of MAJOR.MINOR.PATCH
# OGRE_VERSION_MAJOR OGRE major version
# OGRE_VERSION_MINOR OGRE minor version
# OGRE_VERSION_PATCH OGRE patch version
# OGRE_RESOURCE_PATH Path to ogre plugins directory
# IgnOGRE::IgnOGRE Imported target for OGRE
#
# On Windows, we assume that all the OGRE* defines are passed in manually
# to CMake.
#
# Supports finding the following OGRE components: RTShaderSystem, Terrain, Overlay
#
# Example usage:
#
# ign_find_package(IgnOGRE
# VERSION 1.8.0
# COMPONENTS RTShaderSystem Terrain Overlay)
# Grab the version numbers requested by the call to find_package(~)
set(major_version ${IgnOGRE_FIND_VERSION_MAJOR})
set(minor_version ${IgnOGRE_FIND_VERSION_MINOR})
# Set the full version number
set(full_version ${major_version}.${minor_version})
# Copied from OGREConfig.cmake
macro(ign_ogre_declare_plugin TYPE COMPONENT)
set(OGRE_${TYPE}_${COMPONENT}_FOUND TRUE)
set(OGRE_${TYPE}_${COMPONENT}_LIBRARIES ${TYPE}_${COMPONENT})
list(APPEND OGRE_LIBRARIES ${TYPE}_${COMPONENT})
endmacro()
if (NOT WIN32)
# pkg-config platforms
set(PKG_CONFIG_PATH_ORIGINAL $ENV{PKG_CONFIG_PATH})
set(PKG_CONFIG_PATH_TMP ${PKG_CONFIG_PATH_ORIGINAL})
execute_process(COMMAND pkg-config --variable pc_path pkg-config
OUTPUT_VARIABLE _pkgconfig_invoke_result
RESULT_VARIABLE _pkgconfig_failed)
if(_pkgconfig_failed)
IGN_BUILD_WARNING ("Failed to get pkg-config search paths")
elseif (NOT _pkgconfig_invoke_result STREQUAL "")
set (PKG_CONFIG_PATH_TMP "${PKG_CONFIG_PATH_TMP}:${_pkgconfig_invoke_result}")
endif()
# check and see if there are any paths at all
if ("${PKG_CONFIG_PATH_TMP}" STREQUAL "")
message("No valid pkg-config search paths found")
return()
endif()
string(REPLACE ":" ";" PKG_CONFIG_PATH_TMP ${PKG_CONFIG_PATH_TMP})
# loop through pkg config paths and find an ogre version that is < 2.0.0
foreach(pkg_path ${PKG_CONFIG_PATH_TMP})
if (NOT EXISTS ${pkg_path})
continue()
endif()
set(OGRE_FOUND false)
set(OGRE_INCLUDE_DIRS "")
set(OGRE_LIBRARY_DIRS "")
set(OGRE_LIBRARIES "")
set(ENV{PKG_CONFIG_PATH} ${pkg_path})
ign_pkg_check_modules_quiet(OGRE "OGRE >= ${full_version}"
NO_CMAKE_ENVIRONMENT_PATH
QUIET)
if (OGRE_FOUND)
if (NOT ${OGRE_VERSION} VERSION_LESS 2.0.0)
set (OGRE_FOUND false)
else ()
# set library dirs if the value is empty
if (NOT ${OGRE_LIBRARY_DIRS} OR ${OGRE_LIBRARY_DIRS} STREQUAL "")
execute_process(COMMAND pkg-config --variable=libdir OGRE
OUTPUT_VARIABLE _pkgconfig_invoke_result
RESULT_VARIABLE _pkgconfig_failed)
if(_pkgconfig_failed)
IGN_BUILD_WARNING ("Failed to find OGRE's library directory. The build will succeed, but there will likely be run-time errors.")
else()
# set ogre library dir and strip line break
set(OGRE_LIBRARY_DIRS ${_pkgconfig_invoke_result})
string(REGEX REPLACE "\n$" "" OGRE_LIBRARY_DIRS "${OGRE_LIBRARY_DIRS}")
string(FIND "${OGRE_LIBRARIES}" "${OGRE_LIBRARY_DIRS}" substr_found)
# in some cases the value of OGRE_LIBRARIES is "OgreMain;pthread"
# Convert this to full path to library
if (substr_found EQUAL -1)
foreach(OGRE_LIBRARY_NAME ${OGRE_LIBRARIES})
find_library(OGRE_LIBRARY NAMES ${OGRE_LIBRARY_NAME}
HINTS ${OGRE_LIBRARY_DIRS} NO_DEFAULT_PATH)
list (APPEND TMP_OGRE_LIBRARIES "${OGRE_LIBRARY}")
endforeach()
set(OGRE_LIBRARIES ${TMP_OGRE_LIBRARIES})
endif()
endif()
endif()
break()
endif()
endif()
endforeach()
if (OGRE_FOUND)
# set OGRE major, minor, and patch version number
string (REGEX REPLACE "^([0-9]+).*" "\\1"
OGRE_VERSION_MAJOR "${OGRE_VERSION}")
string (REGEX REPLACE "^[0-9]+\\.([0-9]+).*" "\\1"
OGRE_VERSION_MINOR "${OGRE_VERSION}")
string (REGEX REPLACE "^[0-9]+\\.[0-9]+\\.([0-9]+).*" "\\1"
OGRE_VERSION_PATCH ${OGRE_VERSION})
# find ogre components
foreach(component ${IgnOGRE_FIND_COMPONENTS})
ign_pkg_check_modules_quiet(IgnOGRE-${component} "OGRE-${component} >= ${full_version}" NO_CMAKE_ENVIRONMENT_PATH)
if(IgnOGRE-${component}_FOUND)
list(APPEND OGRE_LIBRARIES IgnOGRE-${component}::IgnOGRE-${component})
elseif(IgnOGRE_FIND_REQUIRED_${component})
set(OGRE_FOUND false)
endif()
endforeach()
execute_process(COMMAND pkg-config --variable=plugindir OGRE
OUTPUT_VARIABLE _pkgconfig_invoke_result
RESULT_VARIABLE _pkgconfig_failed)
if(_pkgconfig_failed)
IGN_BUILD_WARNING ("Failed to find OGRE's plugin directory. The build will succeed, but there will likely be run-time errors.")
else()
# This variable will be substituted into cmake/setup.sh.in
set(OGRE_PLUGINDIR ${_pkgconfig_invoke_result})
endif()
ign_pkg_config_library_entry(IgnOGRE OgreMain)
set(OGRE_RESOURCE_PATH ${OGRE_PLUGINDIR})
# Seems that OGRE_PLUGINDIR can end in a newline, which will cause problems
# when we pass it to the compiler later.
string(REPLACE "\n" "" OGRE_RESOURCE_PATH ${OGRE_RESOURCE_PATH})
endif()
#reset pkg config path
set(ENV{PKG_CONFIG_PATH} ${PKG_CONFIG_PATH_ORIGINAL})
else()
find_package(OGRE ${full_version}
COMPONENTS ${IgnOGRE_FIND_COMPONENTS})
if(OGRE_FOUND)
# OGREConfig.cmake from vcpkg disable the link against plugin libs
# when compiling the shared version of it. Here we copied the code
# to use it.
foreach(ogre_component ${IgnOGRE_FIND_COMPONENTS})
if(ogre_component MATCHES "Plugin_" OR ogre_component MATCHES "RenderSystem_")
string(LENGTH "${ogre_component}" len)
string(FIND "${ogre_component}" "_" split_pos)
math(EXPR split_pos2 "${split_pos}+1")
string(SUBSTRING "${ogre_component}" "0" "${split_pos}" component_type)
string(SUBSTRING "${ogre_component}" "${split_pos2}" "${len}" component_name)
ign_ogre_declare_plugin("${component_type}" "${component_name}")
endif()
endforeach()
# need to return only libraries defined by components and give them the
# full path using OGRE_LIBRARY_DIRS
# Note: the OGREConfig.cmake installed by vcpkg generates variables that
# contain unwanted substrings so the string regex replace is added to
# fix the ogre dir path and lib vars.
# TODO(anyone) check if this is an OGRE vcpkg config issue.
string(REGEX REPLACE "\\$.*>" "" OGRE_LIBRARY_DIRS ${OGRE_LIBRARY_DIRS})
set(ogre_all_libs)
foreach(ogre_lib ${OGRE_LIBRARIES})
# dirty hack to be able to know which ogre libraries are defined by the
# absolute paths. These variables are sometimes multi-configuration vars
# (i.e: C:/vcpkg/installed/x64-windows$<$<CONFIG:Debug>:/debug>/..)
# IS_ABSOLUTE cmake function seems not to be working fine with them.
string(SUBSTRING "${OGRE_LIBRARY_DIRS}" 0 5 PATH_PREFIX)
string(SUBSTRING "${ogre_lib}" 0 5 ogrelib_PATH_PREFIX)
if(ogrelib_PATH_PREFIX STREQUAL PATH_PREFIX)
set(lib_fullpath "${ogre_lib}")
else()
string(REGEX REPLACE "\\$.*>" "" ogre_lib ${ogre_lib})
# Be sure that all Ogre* libraries are using absolute paths
set(prefix "")
# vcpkg uses special directory (lib/manual-link/) to place libraries
# with main sysmbol like OgreMain.
if(ogre_lib MATCHES "OgreMain" AND NOT IS_ABSOLUTE "${ogre_lib}" AND EXISTS "${OGRE_LIBRARY_DIRS}/manual-link/")
set(prefix "${OGRE_LIBRARY_DIRS}/manual-link/")
elseif(ogre_lib MATCHES "Ogre" AND NOT IS_ABSOLUTE "${ogre_lib}")
set(prefix "${OGRE_LIBRARY_DIRS}/")
endif()
if(ogre_lib MATCHES "Plugin_" OR ogre_lib MATCHES "RenderSystem_")
if(NOT IS_ABSOLUTE "${ogre_lib}")
set(prefix "${OGRE_LIBRARY_DIRS}/OGRE/")
endif()
endif()
# Some Ogre libraries are not using the .lib extension
set(postfix "")
if(NOT ogre_lib MATCHES ".lib$")
# Do not consider imported targets as libraries
if(NOT ogre_lib MATCHES "::")
set(postfix ".lib")
endif()
endif()
set(lib_fullpath "${prefix}${ogre_lib}${postfix}")
endif()
list(APPEND ogre_all_libs ${lib_fullpath})
endforeach()
set(OGRE_LIBRARIES ${ogre_all_libs})
set(OGRE_RESOURCE_PATH ${OGRE_CONFIG_DIR})
endif()
endif()
set(IgnOGRE_FOUND false)
if(OGRE_FOUND)
set(IgnOGRE_FOUND true)
# manually search and append the the RenderSystem/GL path to
# OGRE_INCLUDE_DIRS so OGRE GL headers can be found
foreach(dir ${OGRE_INCLUDE_DIRS})
get_filename_component(dir_name "${dir}" NAME)
if("${dir_name}" STREQUAL "OGRE")
if(${OGRE_VERSION} VERSION_LESS 1.11.0)
set(dir_include "${dir}/RenderSystems/GL")
else()
set(dir_include "${dir}/RenderSystems/GL" "${dir}/Paging")
endif()
else()
set(dir_include "${dir}")
endif()
list(APPEND OGRE_INCLUDE_DIRS ${dir_include})
endforeach()
include(IgnImportTarget)
ign_import_target(IgnOGRE
TARGET_NAME IgnOGRE::IgnOGRE
LIB_VAR OGRE_LIBRARIES
INCLUDE_VAR OGRE_INCLUDE_DIRS)
endif()
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