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# SPDX-License-Identifier: BSD-3-Clause
# Copyright 2013 Blender Foundation.
# - 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.
# 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
osdGPU
osdCPU
)
SET(_opensubdiv_SEARCH_DIRS
${OPENSUBDIV_ROOT_DIR}
/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
)
SET(_opensubdiv_LIBRARIES)
FOREACH(COMPONENT ${_opensubdiv_FIND_COMPONENTS})
STRING(TOUPPER ${COMPONENT} UPPERCOMPONENT)
FIND_LIBRARY(OPENSUBDIV_${UPPERCOMPONENT}_LIBRARY
NAMES
${COMPONENT}
HINTS
${_opensubdiv_SEARCH_DIRS}
PATH_SUFFIXES
lib64 lib
)
LIST(APPEND _opensubdiv_LIBRARIES "${OPENSUBDIV_${UPPERCOMPONENT}_LIBRARY}")
ENDFOREACH()
MACRO(OPENSUBDIV_CHECK_CONTROLLER
controller_include_file
variable_name)
IF(EXISTS "${OPENSUBDIV_INCLUDE_DIR}/opensubdiv/osd/${controller_include_file}")
SET(${variable_name} TRUE)
ELSE()
SET(${variable_name} FALSE)
ENDIF()
ENDMACRO()
# 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 DEFAULT_MSG
_opensubdiv_LIBRARIES OPENSUBDIV_INCLUDE_DIR)
IF(OPENSUBDIV_FOUND)
SET(OPENSUBDIV_LIBRARIES ${_opensubdiv_LIBRARIES})
SET(OPENSUBDIV_INCLUDE_DIRS ${OPENSUBDIV_INCLUDE_DIR})
# Find available compute controllers.
FIND_PACKAGE(OpenMP)
IF(OPENMP_FOUND)
SET(OPENSUBDIV_HAS_OPENMP TRUE)
ELSE()
SET(OPENSUBDIV_HAS_OPENMP FALSE)
ENDIF()
OPENSUBDIV_CHECK_CONTROLLER("tbbEvaluator.h" OPENSUBDIV_HAS_TBB)
OPENSUBDIV_CHECK_CONTROLLER("clEvaluator.h" OPENSUBDIV_HAS_OPENCL)
OPENSUBDIV_CHECK_CONTROLLER("cudaEvaluator.h" OPENSUBDIV_HAS_CUDA)
OPENSUBDIV_CHECK_CONTROLLER("glXFBEvaluator.h" OPENSUBDIV_HAS_GLSL_TRANSFORM_FEEDBACK)
OPENSUBDIV_CHECK_CONTROLLER("glComputeEvaluator.h" OPENSUBDIV_HAS_GLSL_COMPUTE)
ENDIF()
MARK_AS_ADVANCED(
OPENSUBDIV_INCLUDE_DIR
)
FOREACH(COMPONENT ${_opensubdiv_FIND_COMPONENTS})
STRING(TOUPPER ${COMPONENT} UPPERCOMPONENT)
MARK_AS_ADVANCED(OPENSUBDIV_${UPPERCOMPONENT}_LIBRARY)
ENDFOREACH()
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