# - Find OpenSubdiv library
# Find the native OpenSubdiv includes and library
# This module defines
# OPENSUBDIV_INCLUDE_DIRS, where to find OpenSubdiv headers, Set when
# OPENSUBDIV_INCLUDE_DIR is found.
# OPENSUBDIV_LIBRARIES, libraries to link against to use OpenSubdiv.
# OPENSUBDIV_ROOT_DIR, the base directory to search for OpenSubdiv.
# This can also be an environment variable.
# OPENSUBDIV_FOUND, if false, do not try to use OpenSubdiv.
#
# also defined, but not for general use are
# OPENSUBDIV_LIBRARY, where to find the OpenSubdiv library.
#=============================================================================
# Copyright 2013 Blender Foundation.
#
# 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.
#=============================================================================
# If OPENSUBDIV_ROOT_DIR was defined in the environment, use it.
IF(NOT OPENSUBDIV_ROOT_DIR AND NOT $ENV{OPENSUBDIV_ROOT_DIR} STREQUAL "")
SET(OPENSUBDIV_ROOT_DIR $ENV{OPENSUBDIV_ROOT_DIR})
ENDIF()
SET(_opensubdiv_FIND_COMPONENTS
osdCPU
)
if(OPENSUBDIV_USE_GPU)
list(APPEND
_opensubdiv_FIND_COMPONENTS
osdGPU)
endif()
SET(_opensubdiv_SEARCH_DIRS
${OPENSUBDIV_ROOT_DIR}
/usr/local
/sw # Fink
/opt/local # DarwinPorts
/opt/csw # Blastwave
/opt/lib/opensubdiv
/opt/lib/osd # install_deps.sh
)
FIND_PATH(OPENSUBDIV_INCLUDE_DIR
NAMES
opensubdiv/osd/mesh.h
HINTS
${_opensubdiv_SEARCH_DIRS}
PATH_SUFFIXES
include
)
if(OPENSUBDIV_INCLUDE_DIR AND EXISTS "${OPENSUBDIV_INCLUDE_DIR}/opensubdiv/version.h")
file(STRINGS
${OPENSUBDIV_INCLUDE_DIR}/opensubdiv/version.h
TMP
REGEX "#define OPENSUBDIV_VERSION v.*$"
)
string(REGEX
MATCHALL "[0-9]_[0-9]_[0-9]"
OPENSUBDIV_VERSION
${TMP}
)
string(REPLACE
"_"
"."
OPENSUBDIV_VERSION
${OPENSUBDIV_VERSION}
)
endif()
SET(_opensubdiv_LIBRARIES)
FOREACH(COMPONENT ${_opensubdiv_FIND_COMPONENTS})
STRING(TOUPPER ${COMPONENT} UPPERCOMPONENT)
FIND_LIBRARY(OPENSUBDIV_${UPPERCOMPONENT}_LIBRARY
NAMES
${COMPONENT}
HINTS
${_opensubdiv_SEARCH_DIRS}
PATH_SUFFIXES
lib64 lib
)
if(DEFINED OPENSUBDIV_${UPPERCOMPONENT}_LIBRARY)
LIST(APPEND
_opensubdiv_LIBRARIES
"${OPENSUBDIV_${UPPERCOMPONENT}_LIBRARY}")
set(OPENSUBDIV_FOUND TRUE)
endif()
ENDFOREACH()
MACRO(OPENSUBDIV_CHECK_CONTROLLER
controller_include_file
variable_name)
IF(EXISTS
"${OPENSUBDIV_INCLUDE_DIR}/opensubdiv/osd/${controller_include_file}"
)
SET(${variable_name} TRUE)
ELSE()
SET(${variable_name} FALSE)
ENDIF()
ENDMACRO()
IF(OPENSUBDIV_FOUND)
SET(OPENSUBDIV_LIBRARIES ${_opensubdiv_LIBRARIES})
SET(OPENSUBDIV_INCLUDE_DIRS ${OPENSUBDIV_INCLUDE_DIR})
# Find available compute controllers that USD may want to use.
OPENSUBDIV_CHECK_CONTROLLER("glXFBEvaluator.h" OPENSUBDIV_HAS_GLSL_TRANSFORM_FEEDBACK)
OPENSUBDIV_CHECK_CONTROLLER("glComputeEvaluator.h" OPENSUBDIV_HAS_GLSL_COMPUTE)
ENDIF(OPENSUBDIV_FOUND)
MARK_AS_ADVANCED(
OPENSUBDIV_INCLUDE_DIR
)
FOREACH(COMPONENT ${_opensubdiv_FIND_COMPONENTS})
STRING(TOUPPER ${COMPONENT} UPPERCOMPONENT)
MARK_AS_ADVANCED(OPENSUBDIV_${UPPERCOMPONENT}_LIBRARY)
ENDFOREACH()
# handle the QUIETLY and REQUIRED arguments and set OPENSUBDIV_FOUND to TRUE if
# all listed variables are TRUE
INCLUDE(FindPackageHandleStandardArgs)
FIND_PACKAGE_HANDLE_STANDARD_ARGS(OpenSubdiv
REQUIRED_VARS
OPENSUBDIV_INCLUDE_DIR
OPENSUBDIV_LIBRARIES
VERSION_VAR
OPENSUBDIV_VERSION
)