1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
|
# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
# file LICENSE.rst or https://cmake.org/licensing for details.
#[=======================================================================[.rst:
FindOpenCL
----------
.. versionadded:: 3.1
Finds Open Computing Language (OpenCL):
.. code-block:: cmake
find_package(OpenCL [<version>] [...])
OpenCL is a framework for writing programs that execute across heterogeneous
platforms, such as CPUs, GPUs, and other accelerators.
.. versionadded:: 3.24
Detection of OpenCL 3.0.
.. versionadded:: 3.10
Detection of OpenCL 2.1 and 2.2.
Imported Targets
^^^^^^^^^^^^^^^^
This module provides the following :ref:`Imported Targets`:
``OpenCL::OpenCL``
.. versionadded:: 3.7
Target encapsulating the OpenCL usage requirements, available if OpenCL
has been found.
Result Variables
^^^^^^^^^^^^^^^^
This module defines the following variables:
``OpenCL_FOUND``
Boolean indicating whether (the requested version of) OpenCL was found.
``OpenCL_VERSION``
.. versionadded:: 4.2
Highest supported OpenCL version found in form of ``<major>.<minor>``
(e.g., ``1.2``).
``OpenCL_VERSION_MAJOR``
The major version of the OpenCL implementation.
``OpenCL_VERSION_MINOR``
The minor version of the OpenCL implementation.
``OpenCL_INCLUDE_DIRS``
Include directories needed to use OpenCL.
``OpenCL_LIBRARIES``
Libraries needed to link to OpenCL.
Cache Variables
^^^^^^^^^^^^^^^
The following cache variables may also be set:
``OpenCL_INCLUDE_DIR``
The OpenCL include directory.
``OpenCL_LIBRARY``
The path to the OpenCL library.
Deprecated Variables
^^^^^^^^^^^^^^^^^^^^
The following variables are provided for backward compatibility:
``OpenCL_VERSION_STRING``
.. deprecated:: 4.2
Use ``OpenCL_VERSION``, which has the same value.
Highest supported OpenCL version found in form of ``<major>.<minor>``.
Examples
^^^^^^^^
Finding OpenCL and linking it to a project target:
.. code-block:: cmake
find_package(OpenCL)
target_link_libraries(project_target PRIVATE OpenCL::OpenCL)
#]=======================================================================]
cmake_policy(PUSH)
cmake_policy(SET CMP0140 NEW)
set(_OPENCL_x86 "(x86)")
function(_FIND_OPENCL_VERSION)
include(CheckIncludeFiles)
include(CheckSymbolExists)
include(CMakePushCheckState)
cmake_push_check_state()
set(CMAKE_REQUIRED_QUIET ${OpenCL_FIND_QUIETLY})
set(CMAKE_REQUIRED_INCLUDES "${OpenCL_INCLUDE_DIR}")
check_include_files(OpenCL/cl.h OpenCL_HAVE_OPENCL_CL_H)
foreach(VERSION "3_0" "2_2" "2_1" "2_0" "1_2" "1_1" "1_0")
if(OpenCL_HAVE_OPENCL_CL_H)
check_symbol_exists(
CL_VERSION_${VERSION}
"OpenCL/cl.h"
OPENCL_VERSION_${VERSION})
else()
check_symbol_exists(
CL_VERSION_${VERSION}
"CL/cl.h"
OPENCL_VERSION_${VERSION})
endif()
if(OPENCL_VERSION_${VERSION})
string(REPLACE "_" "." VERSION "${VERSION}")
set(OpenCL_VERSION ${VERSION})
set(OpenCL_VERSION_STRING "${OpenCL_VERSION}")
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})
set(OpenCL_VERSION_MINOR ${minor_version})
break()
endif()
endforeach()
cmake_pop_check_state()
return(
PROPAGATE
OpenCL_VERSION
OpenCL_VERSION_MAJOR
OpenCL_VERSION_MINOR
OpenCL_VERSION_STRING
)
endfunction()
find_path(OpenCL_INCLUDE_DIR
NAMES
CL/cl.h OpenCL/cl.h
PATHS
ENV "PROGRAMFILES(X86)"
ENV "PROGRAMFILES"
$ENV{PROGRAMFILES${_OPENCL_x86}}/OpenCLHeaders
$ENV{PROGRAMFILES}/OpenCLHeaders
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 "PROGRAMFILES"
$ENV{PROGRAMFILES${_OPENCL_x86}}/OpenCL-ICD-Loader
$ENV{PROGRAMFILES}/OpenCL-ICD-Loader
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 "PROGRAMFILES"
$ENV{PROGRAMFILES${_OPENCL_x86}}/OpenCL-ICD-Loader
$ENV{PROGRAMFILES}/OpenCL-ICD-Loader
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
lib
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()
unset(_OPENCL_x86)
set(OpenCL_LIBRARIES ${OpenCL_LIBRARY})
set(OpenCL_INCLUDE_DIRS ${OpenCL_INCLUDE_DIR})
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(
OpenCL
REQUIRED_VARS OpenCL_LIBRARY OpenCL_INCLUDE_DIR
VERSION_VAR OpenCL_VERSION
)
mark_as_advanced(
OpenCL_INCLUDE_DIR
OpenCL_LIBRARY)
if(OpenCL_FOUND AND NOT TARGET OpenCL::OpenCL)
if(OpenCL_LIBRARY MATCHES "/([^/]+)\\.framework$")
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()
cmake_policy(POP)
|
