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# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
# file Copyright.txt or https://cmake.org/licensing for details.
#[=======================================================================[.rst:
FindOpenCL
----------
.. versionadded:: 3.1
Finds Open Computing Language (OpenCL)
.. versionadded:: 3.10
Detection of OpenCL 2.1 and 2.2.
IMPORTED Targets
^^^^^^^^^^^^^^^^
.. versionadded:: 3.7
This module defines :prop_tgt:`IMPORTED` target ``OpenCL::OpenCL``, if
OpenCL has been found.
Result Variables
^^^^^^^^^^^^^^^^
This module defines the following variables::
OpenCL_FOUND - True if OpenCL was found
OpenCL_INCLUDE_DIRS - include directories for OpenCL
OpenCL_LIBRARIES - link against this library to use OpenCL
OpenCL_VERSION_STRING - Highest supported OpenCL version (eg. 1.2)
OpenCL_VERSION_MAJOR - The major version of the OpenCL implementation
OpenCL_VERSION_MINOR - The minor version of the OpenCL implementation
The module will also define two cache variables::
OpenCL_INCLUDE_DIR - the OpenCL include directory
OpenCL_LIBRARY - the path to the OpenCL library
#]=======================================================================]
function(_FIND_OPENCL_VERSION)
include(CheckSymbolExists)
include(CMakePushCheckState)
set(CMAKE_REQUIRED_QUIET ${OpenCL_FIND_QUIETLY})
CMAKE_PUSH_CHECK_STATE()
foreach(VERSION "3_0" "2_2" "2_1" "2_0" "1_2" "1_1" "1_0")
set(CMAKE_REQUIRED_INCLUDES "${OpenCL_INCLUDE_DIR}")
if(EXISTS ${OpenCL_INCLUDE_DIR}/Headers/cl.h)
CHECK_SYMBOL_EXISTS(
CL_VERSION_${VERSION}
"${OpenCL_INCLUDE_DIR}/Headers/cl.h"
OPENCL_VERSION_${VERSION})
else()
CHECK_SYMBOL_EXISTS(
CL_VERSION_${VERSION}
"${OpenCL_INCLUDE_DIR}/CL/cl.h"
OPENCL_VERSION_${VERSION})
endif()
if(OPENCL_VERSION_${VERSION})
string(REPLACE "_" "." VERSION "${VERSION}")
set(OpenCL_VERSION_STRING ${VERSION} PARENT_SCOPE)
string(REGEX MATCHALL "[0-9]+" version_components "${VERSION}")
list(GET version_components 0 major_version)
list(GET version_components 1 minor_version)
set(OpenCL_VERSION_MAJOR ${major_version} PARENT_SCOPE)
set(OpenCL_VERSION_MINOR ${minor_version} PARENT_SCOPE)
break()
endif()
endforeach()
CMAKE_POP_CHECK_STATE()
endfunction()
find_path(OpenCL_INCLUDE_DIR
NAMES
CL/cl.h OpenCL/cl.h
PATHS
ENV "PROGRAMFILES(X86)"
ENV AMDAPPSDKROOT
ENV INTELOCLSDKROOT
ENV NVSDKCOMPUTE_ROOT
ENV CUDA_PATH
ENV ATISTREAMSDKROOT
ENV OCL_ROOT
/usr/local/cuda
/opt/cuda
PATH_SUFFIXES
include
OpenCL/common/inc
"AMD APP/include")
_FIND_OPENCL_VERSION()
if(WIN32)
if(CMAKE_SIZEOF_VOID_P EQUAL 4)
find_library(OpenCL_LIBRARY
NAMES OpenCL
PATHS
ENV "PROGRAMFILES(X86)"
ENV AMDAPPSDKROOT
ENV INTELOCLSDKROOT
ENV CUDA_PATH
ENV NVSDKCOMPUTE_ROOT
ENV ATISTREAMSDKROOT
ENV OCL_ROOT
PATH_SUFFIXES
"AMD APP/lib/x86"
lib/x86
lib/Win32
OpenCL/common/lib/Win32)
elseif(CMAKE_SIZEOF_VOID_P EQUAL 8)
find_library(OpenCL_LIBRARY
NAMES OpenCL
PATHS
ENV "PROGRAMFILES(X86)"
ENV AMDAPPSDKROOT
ENV INTELOCLSDKROOT
ENV CUDA_PATH
ENV NVSDKCOMPUTE_ROOT
ENV ATISTREAMSDKROOT
ENV OCL_ROOT
PATH_SUFFIXES
"AMD APP/lib/x86_64"
lib/x86_64
lib/x64
OpenCL/common/lib/x64)
endif()
else()
if(CMAKE_SIZEOF_VOID_P EQUAL 4)
find_library(OpenCL_LIBRARY
NAMES OpenCL
PATHS
ENV AMDAPPSDKROOT
ENV CUDA_PATH
/usr/local/cuda
/opt/cuda
PATH_SUFFIXES
lib/x86
lib)
elseif(CMAKE_SIZEOF_VOID_P EQUAL 8)
find_library(OpenCL_LIBRARY
NAMES OpenCL
PATHS
ENV AMDAPPSDKROOT
ENV CUDA_PATH
/usr/local/cuda
/opt/cuda
PATH_SUFFIXES
lib/x86_64
lib/x64
lib
lib64)
endif()
endif()
set(OpenCL_LIBRARIES ${OpenCL_LIBRARY})
set(OpenCL_INCLUDE_DIRS ${OpenCL_INCLUDE_DIR})
include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)
find_package_handle_standard_args(
OpenCL
FOUND_VAR OpenCL_FOUND
REQUIRED_VARS OpenCL_LIBRARY OpenCL_INCLUDE_DIR
VERSION_VAR OpenCL_VERSION_STRING)
mark_as_advanced(
OpenCL_INCLUDE_DIR
OpenCL_LIBRARY)
if(OpenCL_FOUND AND NOT TARGET OpenCL::OpenCL)
if(OpenCL_LIBRARY MATCHES "/([^/]+)\\.framework$")
add_library(OpenCL::OpenCL INTERFACE IMPORTED)
set_target_properties(OpenCL::OpenCL PROPERTIES
INTERFACE_LINK_LIBRARIES "${OpenCL_LIBRARY}")
else()
add_library(OpenCL::OpenCL UNKNOWN IMPORTED)
set_target_properties(OpenCL::OpenCL PROPERTIES
IMPORTED_LOCATION "${OpenCL_LIBRARY}")
endif()
set_target_properties(OpenCL::OpenCL PROPERTIES
INTERFACE_INCLUDE_DIRECTORIES "${OpenCL_INCLUDE_DIRS}")
endif()
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