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#
# Copyright 2013 Pixar
#
# Licensed under the Apache License, Version 2.0 (the "Apache License")
# with the following modification; you may not use this file except in
# compliance with the Apache License and the following modification to it:
# Section 6. Trademarks. is deleted and replaced with:
#
# 6. Trademarks. This License does not grant permission to use the trade
# names, trademarks, service marks, or product names of the Licensor
# and its affiliates, except as required to comply with Section 4(c) of
# the License and to reproduce the content of the NOTICE file.
#
# You may obtain a copy of the Apache License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the Apache License with the above modification is
# distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied. See the Apache License for the specific
# language governing permissions and limitations under the Apache License.
#
# - Try to find an OpenCL library
# Once done this will define
#
# OPENCL_FOUND - System has OPENCL
# OPENCL_INCLUDE_DIRS - The OPENCL include directory
# OPENCL_LIBRARIES - The libraries needed to use OPENCL
find_package(PackageHandleStandardArgs)
if (APPLE)
find_library( OPENCL_LIBRARIES
NAMES
OpenCL
DOC "OpenCL lib for OSX"
)
find_path( OPENCL_INCLUDE_DIRS
NAMES
OpenCL/cl.h
DOC "Include for OpenCL on OSX"
)
find_path( _OPENCL_CPP_INCLUDE_DIRS
NAMES
OpenCL/cl.hpp
DOC "Include for OpenCL CPP bindings on OSX"
)
elseif (WIN32)
find_path( OPENCL_INCLUDE_DIRS
NAMES
CL/cl.h
)
find_path( _OPENCL_CPP_INCLUDE_DIRS
NAMES
CL/cl.hpp
)
find_library( OPENCL_LIBRARIES
NAMES
OpenCL.lib
PATHS
ENV OpenCL_LIBPATH
"$ENV{ATISTREAMSDKROOT}/lib/x86_64"
"$ENV{ATISTREAMSDKROOT}/lib/x86"
"C:/Program Files (x86)/Intel/OpenCL SDK/2.0/lib/x64"
"C:/Program Files (x86)/Intel/OpenCL SDK/2.0/lib/x86"
)
get_filename_component( _OPENCL_INC_CAND ${OPENCL_LIB_DIR}/../../include ABSOLUTE )
find_path( OPENCL_INCLUDE_DIRS
NAMES
CL/cl.h
PATHS
"${_OPENCL_INC_CAND}"
ENV OpenCL_INCPATH
)
find_path( _OPENCL_CPP_INCLUDE_DIRS
NAMES
CL/cl.hpp
PATHS
"${_OPENCL_INC_CAND}"
ENV OpenCL_INCPATH
)
# AMD APP SDK
find_file(_OPENCL_DX_INTEROP_CL_D3D11_H
NAMES
CL/cl_d3d11.h
PATHS
"${_OPENCL_INC_CAND}"
"${OPENCL_INCLUDE_DIRS}"
ENV OpenCL_INCPATH
)
if (_OPENCL_DX_INTEROP_CL_D3D11_H)
set(OPENCL_CL_D3D11_H_FOUND "YES")
message("OpenCL DX11 interop found ${_OPENCL_DX_INTEROP_CL_D3D11_H}")
endif()
# NVIDIA GPU Computing ToolKit
find_file(_OPENCL_DX_INTEROP_CL_D3D11_EXT_H
NAMES
CL/cl_d3d11_ext.h
PATHS
"${_OPENCL_INC_CAND}"
"${OPENCL_INCLUDE_DIRS}"
ENV OpenCL_INCPATH
)
if (_OPENCL_DX_INTEROP_CL_D3D11_EXT_H)
set(OPENCL_CL_D3D11_EXT_H_FOUND "YES")
message("OpenCL DX11 interop found ${_OPENCL_DX_INTEROP_CL_D3D11_EXT_H}")
endif()
if (NOT _OPENCL_DX_INTEROP_CL_D3D11_H AND NOT _OPENCL_DX_INTEROP_CL_D3D11_EXT_H)
message("OpenCL DX11 interop not found")
endif()
elseif (UNIX)
find_library( OPENCL_LIBRARIES
NAMES
OpenCL
PATHS
ENV LD_LIBRARY_PATH
ENV OpenCL_LIBPATH
)
get_filename_component( OPENCL_LIB_DIR ${OPENCL_LIBRARIES} PATH )
get_filename_component( _OPENCL_INC_CAND "${OPENCL_LIB_DIR}/../../include" ABSOLUTE )
find_path( OPENCL_INCLUDE_DIRS
NAMES
CL/cl.h
PATHS
"${_OPENCL_INC_CAND}"
"/usr/local/cuda/include"
"/opt/AMDAPP/include"
ENV OpenCL_INCPATH
)
find_path( _OPENCL_CPP_INCLUDE_DIRS
NAMES
CL/cl.hpp
PATHS
"${_OPENCL_INC_CAND}"
"/usr/local/cuda/include"
"/opt/AMDAPP/include"
ENV OpenCL_INCPATH
)
else ()
message( "Could not determine OpenCL platform" )
endif ()
if(_OPENCL_CPP_INCLUDE_DIRS)
set( OPENCL_HAS_CPP_BINDINGS TRUE )
list( APPEND OPENCL_INCLUDE_DIRS ${_OPENCL_CPP_INCLUDE_DIRS} )
list( REMOVE_DUPLICATES OPENCL_INCLUDE_DIRS )
if(EXISTS "${OPENCL_INCLUDE_DIRS}/CL/cl.h")
file(STRINGS "${OPENCL_INCLUDE_DIRS}/CL/cl.h" LINES REGEX "^#define CL_VERSION_[0-9]_[0-9]")
foreach(LINE ${LINES})
string(REGEX MATCHALL "[0-9]+" VERSION ${LINE})
#string(SUBSTRING ${VERSION} 1 2 FOO)
list(GET VERSION 0 MAJOR)
list(GET VERSION 1 MINOR)
set(VERSION ${MAJOR}.${MINOR})
if (NOT OPENCL_VERSION OR OPENCL_VERSION VERSION_LESS ${VERSION})
set(OPENCL_VERSION ${VERSION})
endif()
endforeach()
endif()
endif(_OPENCL_CPP_INCLUDE_DIRS)
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(OpenCL
REQUIRED_VARS
OPENCL_LIBRARIES
OPENCL_INCLUDE_DIRS
VERSION_VAR
OPENCL_VERSION
)
mark_as_advanced( OPENCL_INCLUDE_DIRS )
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