Repository navigation
Expand file tree
/
Copy pathcl2.hpp
More file actions
9681 lines (8544 loc) · 298 KB
/
Copy pathcl2.hpp
File metadata and controls
9681 lines (8544 loc) · 298 KB
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
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
3
10BC8
08
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/*******************************************************************************
* Copyright (c) 2008-2016 The Khronos Group Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and/or associated documentation files (the
* "Materials"), to deal in the Materials without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Materials, and to
* permit persons to whom the Materials are furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Materials.
*
* MODIFICATIONS TO THIS FILE MAY MEAN IT NO LONGER ACCURATELY REFLECTS
* KHRONOS STANDARDS. THE UNMODIFIED, NORMATIVE VERSIONS OF KHRONOS
* SPECIFICATIONS AND HEADER INFORMATION ARE LOCATED AT
* https://www.khronos.org/registry/
*
* THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
******************************************************************************/
/*! \file
*
* \brief C++ bindings for OpenCL 1.0 (rev 48), OpenCL 1.1 (rev 33),
* OpenCL 1.2 (rev 15) and OpenCL 2.0 (rev 29)
* \author Lee Howes and Bruce Merry
*
* Derived from the OpenCL 1.x C++ bindings written by
* Benedict R. Gaster, Laurent Morichetti and Lee Howes
* With additions and fixes from:
* Brian Cole, March 3rd 2010 and April 2012
* Matt Gruenke, April 2012.
* Bruce Merry, February 2013.
* Tom Deakin and Simon McIntosh-Smith, July 2013
* James Price, 2015-
*
* \version 2.0.10
* \date 2016-07-20
*
* Optional extension support
*
* cl_ext_device_fission
* #define CL_HPP_USE_CL_DEVICE_FISSION
* cl_khr_d3d10_sharing
* #define CL_HPP_USE_DX_INTEROP
* cl_khr_sub_groups
* #define CL_HPP_USE_CL_SUB_GROUPS_KHR
* cl_khr_image2d_from_buffer
* #define CL_HPP_USE_CL_IMAGE2D_FROM_BUFFER_KHR
*
* Doxygen documentation for this header is available here:
*
* http://khronosgroup.github.io/OpenCL-CLHPP/
*
* The latest version of this header can be found on the GitHub releases page:
*
* https://github.com/KhronosGroup/OpenCL-CLHPP/releases
*
* Bugs and patches can be submitted to the GitHub repository:
*
* https://github.com/KhronosGroup/OpenCL-CLHPP
*/
/*! \mainpage
* \section intro Introduction
* For many large applications C++ is the language of choice and so it seems
* reasonable to define C++ bindings for OpenCL.
*
* The interface is contained with a single C++ header file \em cl2.hpp and all
* definitions are contained within the namespace \em cl. There is no additional
* requirement to include \em cl.h and to use either the C++ or original C
* bindings; it is enough to simply include \em cl2.hpp.
*
* The bindings themselves are lightweight and correspond closely to the
* underlying C API. Using the C++ bindings introduces no additional execution
* overhead.
*
* There are numerous compatibility, portability and memory management
* fixes in the new header as well as additional OpenCL 2.0 features.
* As a result the header is not directly backward compatible and for this
* reason we release it as cl2.hpp rather than a new version of cl.hpp.
*
*
* \section compatibility Compatibility
* Due to the evolution of the underlying OpenCL API the 2.0 C++ bindings
* include an updated approach to defining supported feature versions
* and the range of valid underlying OpenCL runtime versions supported.
*
* The combination of preprocessor macros CL_HPP_TARGET_OPENCL_VERSION and
* CL_HPP_MINIMUM_OPENCL_VERSION control this range. These are three digit
* decimal values representing OpenCL runime versions. The default for
* the target is 200, representing OpenCL 2.0 and the minimum is also
* defined as 200. These settings would use 2.0 API calls only.
* If backward compatibility with a 1.2 runtime is required, the minimum
* version may be set to 120.
*
* Note that this is a compile-time setting, and so affects linking against
* a particular SDK version rather than the versioning of the loaded runtime.
*
* The earlier versions of the header included basic vector and string
* classes based loosely on STL versions. These were difficult to
* maintain and very rarely used. For the 2.0 header we now assume
* the presence of the standard library unless requested otherwise.
* We use std::array, std::vector, std::shared_ptr and std::string
* throughout to safely manage memory and reduce the chance of a
* recurrance of earlier memory management bugs.
*
* These classes are used through typedefs in the cl namespace:
* cl::array, cl::vector, cl::pointer and cl::string.
* In addition cl::allocate_pointer forwards to std::allocate_shared
* by default.
* In all cases these standard library classes can be replaced with
* custom interface-compatible versions using the CL_HPP_NO_STD_ARRAY,
* CL_HPP_NO_STD_VECTOR, CL_HPP_NO_STD_UNIQUE_PTR and
* CL_HPP_NO_STD_STRING macros.
*
* The OpenCL 1.x versions of the C++ bindings included a size_t wrapper
* class to interface with kernel enqueue. This caused unpleasant interactions
* with the standard size_t declaration and led to namespacing bugs.
* In the 2.0 version we have replaced this with a std::array-based interface.
* However, the old behaviour can be regained for backward compatibility
* using the CL_HPP_ENABLE_SIZE_T_COMPATIBILITY macro.
*
* Finally, the program construction interface used a clumsy vector-of-pairs
* design in the earlier versions. We have replaced that with a cleaner
* vector-of-vectors and vector-of-strings design. However, for backward
* compatibility old behaviour can be regained with the
* CL_HPP_ENABLE_PROGRAM_CONSTRUCTION_FROM_ARRAY_COMPATIBILITY macro.
*
* In OpenCL 2.0 OpenCL C is not entirely backward compatibility with
* earlier versions. As a result a flag must be passed to the OpenCL C
* compiled to request OpenCL 2.0 compilation of kernels with 1.2 as
* the default in the absence of the flag.
* In some cases the C++ bindings automatically compile code for ease.
* For those cases the compilation defaults to OpenCL C 2.0.
* If this is not wanted, the CL_HPP_CL_1_2_DEFAULT_BUILD macro may
* be specified to assume 1.2 compilation.
* If more fine-grained decisions on a per-kernel bases are required
* then explicit build operations that take the flag should be used.
*
*
* \section parameterization Parameters
* This header may be parameterized by a set of preprocessor macros.
*
* - CL_HPP_TARGET_OPENCL_VERSION
*
* Defines the target OpenCL runtime version to build the header
* against. Defaults to 200, representing OpenCL 2.0.
*
* - CL_HPP_NO_STD_STRING
*
* Do not use the standard library string class. cl::string is not
* defined and may be defined by the user before cl2.hpp is
* included.
*
* - CL_HPP_NO_STD_VECTOR
*
* Do not use the standard library vector class. cl::vector is not
* defined and may be defined by the user before cl2.hpp is
* included.
*
* - CL_HPP_NO_STD_ARRAY
*
* Do not use the standard library array class. cl::array is not
* defined and may be defined by the user before cl2.hpp is
* included.
*
* - CL_HPP_NO_STD_UNIQUE_PTR
*
* Do not use the standard library unique_ptr class. cl::pointer and
* the cl::allocate_pointer functions are not defined and may be
* defined by the user before cl2.hpp is included.
*
* - CL_HPP_ENABLE_DEVICE_FISSION
*
* Enables device fission for OpenCL 1.2 platforms.
*
* - CL_HPP_ENABLE_EXCEPTIONS
*
* Enable exceptions for use in the C++ bindings header. This is the
* preferred error handling mechanism but is not required.
*
* - CL_HPP_ENABLE_SIZE_T_COMPATIBILITY
*
* Backward compatibility option to support cl.hpp-style size_t
* class. Replaces the updated std::array derived version and
* removal of size_t from the namespace. Note that in this case the
* new size_t class is placed in the cl::compatibility namespace and
* thus requires an additional using declaration for direct backward
* compatibility.
*
* - CL_HPP_ENABLE_PROGRAM_CONSTRUCTION_FROM_ARRAY_COMPATIBILITY
*
* Enable older vector of pairs interface for construction of
* programs.
*
* - CL_HPP_CL_1_2_DEFAULT_BUILD
*
* Default to OpenCL C 1.2 compilation rather than OpenCL C 2.0
* applies to use of cl::Program construction and other program
* build variants.
*
*
* \section example Example
*
* The following example shows a general use case for the C++
* bindings, including support for the optional exception feature and
* also the supplied vector and string classes, see following sections for
* decriptions of these features.
*
* \code
#define CL_HPP_ENABLE_EXCEPTIONS
#define CL_HPP_TARGET_OPENCL_VERSION 200
#include <CL/cl2.hpp>
#include <iostream>
#include <vector>
#include <memory>
#include <algorithm>
const int numElements = 32;
int main(void)
{
// Filter for a 2.0 platform and set it as the default
std::vector<cl::Platform> platforms;
cl::Platform::get(&platforms);
cl::Platform plat;
for (auto &p : platforms) {
std::string platver = p.getInfo<CL_PLATFORM_VERSION>();
if (platver.find("OpenCL 2.") != std::string::npos) {
plat = p;
}
}
if (plat() == 0) {
std::cout << "No OpenCL 2.0 platform found.";
return -1;
}
cl::Platform newP = cl::Platform::setDefault(plat);
if (newP != plat) {
std::cout << "Error setting default platform.";
return -1;
}
// Use C++11 raw string literals for kernel source code
std::string kernel1{R"CLC(
global int globalA;
kernel void updateGlobal()
{
globalA = 75;
}
)CLC"};
std::string kernel2{R"CLC(
typedef struct { global int *bar; } Foo;
kernel void vectorAdd(global const Foo* aNum, global const int *inputA, global const int *inputB,
global int *output, int val, write_only pipe int outPipe, queue_t childQueue)
{
output[get_global_id(0)] = inputA[get_global_id(0)] + inputB[get_global_id(0)] + val + *(aNum->bar);
write_pipe(outPipe, &val);
queue_t default_queue = get_default_queue();
ndrange_t ndrange = ndrange_1D(get_global_size(0)/2, get_global_size(0)/2);
// Have a child kernel write into third quarter of output
enqueue_kernel(default_queue, CLK_ENQUEUE_FLAGS_WAIT_KERNEL, ndrange,
^{
output[get_global_size(0)*2 + get_global_id(0)] =
inputA[get_global_size(0)*2 + get_global_id(0)] + inputB[get_global_size(0)*2 + get_global_id(0)] + globalA;
});
// Have a child kernel write into last quarter of output
enqueue_kernel(childQueue, CLK_ENQUEUE_FLAGS_WAIT_KERNEL, ndrange,
^{
output[get_global_size(0)*3 + get_global_id(0)] =
inputA[get_global_size(0)*3 + get_global_id(0)] + inputB[get_global_size(0)*3 + get_global_id(0)] + globalA + 2;
});
}
)CLC"};
// New simpler string interface style
std::vector<std::string> programStrings {kernel1, kernel2};
cl::Program vectorAddProgram(programStrings);
try {
vectorAddProgram.build("-cl-std=CL2.0");
}
catch (...) {
// Print build info for all devices
cl_int buildErr = CL_SUCCESS;
auto buildInfo = vectorAddProgram.getBuildInfo<CL_PROGRAM_BUILD_LOG>(&buildErr);
for (auto &pair : buildInfo) {
std::cerr << pair.second << std::endl << std::endl;
}
return 1;
}
typedef struct { int *bar; } Foo;
// Get and run kernel that initializes the program-scope global
// A test for kernels that take no arguments
auto program2Kernel =
cl::KernelFunctor<>(vectorAddProgram, "updateGlobal");
program2Kernel(
cl::EnqueueArgs(
cl::NDRange(1)));
//////////////////
// SVM allocations
auto anSVMInt = cl::allocate_svm<int, cl::SVMTraitCoarse<>>();
*anSVMInt = 5;
cl::SVMAllocator<Foo, cl::SVMTraitCoarse<cl::SVMTraitReadOnly<>>> svmAllocReadOnly;
auto fooPointer = cl::allocate_pointer<Foo>(svmAllocReadOnly);
fooPointer->bar = anSVMInt.get();
cl::SVMAllocator<int, cl::SVMTraitCoarse<>> svmAlloc;
std::vector<int, cl::SVMAllocator<int, cl::SVMTraitCoarse<>>> inputA(numElements, 1, svmAlloc);
cl::coarse_svm_vector<int> inputB(numElements, 2, svmAlloc);
//
//////////////
// Traditional cl_mem allocations
std::vector<int> output(numElements, 0xdeadbeef);
cl::Buffer outputBuffer(begin(output), end(output), false);
cl::Pipe aPipe(sizeof(cl_int), numElements / 2);
// Default command queue, also passed in as a parameter
cl::DeviceCommandQueue defaultDeviceQueue = cl::DeviceCommandQueue::makeDefault(
cl::Context::getDefault(), cl::Device::getDefault());
auto vectorAddKernel =
cl::KernelFunctor<
decltype(fooPointer)&,
int*,
cl::coarse_svm_vector<int>&,
cl::Buffer,
int,
cl::Pipe&,
cl::DeviceCommandQueue
>(vectorAddProgram, "vectorAdd");
// Ensure that the additional SVM pointer is available to the kernel
// This one was not passed as a parameter
vectorAddKernel.setSVMPointers(anSVMInt);
// Hand control of coarse allocations to runtime
cl::enqueueUnmapSVM(anSVMInt);
cl::enqueueUnmapSVM(fooPointer);
cl::unmapSVM(inputB);
cl::unmapSVM(output2);
cl_int error;
vectorAddKernel(
cl::EnqueueArgs(
cl::NDRange(numElements/2),
cl::NDRange(numElements/2)),
fooPointer,
inputA.data(),
inputB,
outputBuffer,
3,
aPipe,
defaultDeviceQueue,
error
);
cl::copy(outputBuffer, begin(output), end(output));
// Grab the SVM output vector using a map
cl::mapSVM(output2);
cl::Device d = cl::Device::getDefault();
std::cout << "Output:\n";
for (int i = 1; i < numElements; ++i) {
std::cout << "\t" << output[i] << "\n";
}
std::cout << "\n\n";
return 0;
}
*
* \endcode
*
*/
#ifndef CL_HPP_
#define CL_HPP_
/* Handle deprecated preprocessor definitions. In each case, we only check for
* the old name if the new name is not defined, so that user code can define
* both and hence work with either version of the bindings.
*/
#if !defined(CL_HPP_USE_DX_INTEROP) && defined(USE_DX_INTEROP)
# pragma message("cl2.hpp: USE_DX_INTEROP is deprecated. Define CL_HPP_USE_DX_INTEROP instead")
# define CL_HPP_USE_DX_INTEROP
#endif
#if !defined(CL_HPP_USE_CL_DEVICE_FISSION) && defined(USE_CL_DEVICE_FISSION)
# pragma message("cl2.hpp: USE_CL_DEVICE_FISSION is deprecated. Define CL_HPP_USE_CL_DEVICE_FISSION instead")
# define CL_HPP_USE_CL_DEVICE_FISSION
#endif
#if !defined(CL_HPP_ENABLE_EXCEPTIONS) && defined(__CL_ENABLE_EXCEPTIONS)
# pragma message("cl2.hpp: __CL_ENABLE_EXCEPTIONS is deprecated. Define CL_HPP_ENABLE_EXCEPTIONS instead")
# define CL_HPP_ENABLE_EXCEPTIONS
#endif
#if !defined(CL_HPP_NO_STD_VECTOR) && defined(__NO_STD_VECTOR)
# pragma message("cl2.hpp: __NO_STD_VECTOR is deprecated. Define CL_HPP_NO_STD_VECTOR instead")
# define CL_HPP_NO_STD_VECTOR
#endif
#if !defined(CL_HPP_NO_STD_STRING) && defined(__NO_STD_STRING)
# pragma message("cl2.hpp: __NO_STD_STRING is deprecated. Define CL_HPP_NO_STD_STRING instead")
# define CL_HPP_NO_STD_STRING
#endif
#if defined(VECTOR_CLASS)
# pragma message("cl2.hpp: VECTOR_CLASS is deprecated. Alias cl::vector instead")
#endif
#if defined(STRING_CLASS)
# pragma message("cl2.hpp: STRING_CLASS is deprecated. Alias cl::string instead.")
#endif
#if !defined(CL_HPP_USER_OVERRIDE_ERROR_STRINGS) && defined(__CL_USER_OVERRIDE_ERROR_STRINGS)
# pragma message("cl2.hpp: __CL_USER_OVERRIDE_ERROR_STRINGS is deprecated. Define CL_HPP_USER_OVERRIDE_ERROR_STRINGS instead")
# define CL_HPP_USER_OVERRIDE_ERROR_STRINGS
#endif
/* Warn about features that are no longer supported
*/
#if defined(__USE_DEV_VECTOR)
# pragma message("cl2.hpp: __USE_DEV_VECTOR is no longer supported. Expect compilation errors")
#endif
#if defined(__USE_DEV_STRING)
# pragma message("cl2.hpp: __USE_DEV_STRING is no longer supported. Expect compilation errors")
#endif
/* Detect which version to target */
#if !defined(CL_HPP_TARGET_OPENCL_VERSION)
# pragma message("cl2.hpp: CL_HPP_TARGET_OPENCL_VERSION is not defined. It will default to 200 (OpenCL 2.0)")
# define CL_HPP_TARGET_OPENCL_VERSION 200
#endif
#if CL_HPP_TARGET_OPENCL_VERSION != 100 && CL_HPP_TARGET_OPENCL_VERSION != 110 && CL_HPP_TARGET_OPENCL_VERSION != 120 && CL_HPP_TARGET_OPENCL_VERSION != 200
# pragma message("cl2.hpp: CL_HPP_TARGET_OPENCL_VERSION is not a valid value (100, 110, 120 or 200). It will be set to 200")
# undef CL_HPP_TARGET_OPENCL_VERSION
# define CL_HPP_TARGET_OPENCL_VERSION 200
#endif
/* Forward target OpenCL version to C headers */
#define CL_TARGET_OPENCL_VERSION CL_HPP_TARGET_OPENCL_VERSION
#if !defined(CL_HPP_MINIMUM_OPENCL_VERSION)
# define CL_HPP_MINIMUM_OPENCL_VERSION 200
#endif
#if CL_HPP_MINIMUM_OPENCL_VERSION != 100 && CL_HPP_MINIMUM_OPENCL_VERSION != 110 && CL_HPP_MINIMUM_OPENCL_VERSION != 120 && CL_HPP_MINIMUM_OPENCL_VERSION != 200
# pragma message("cl2.hpp: CL_HPP_MINIMUM_OPENCL_VERSION is not a valid value (100, 110, 120 or 200). It will be set to 100")
# undef CL_HPP_MINIMUM_OPENCL_VERSION
# define CL_HPP_MINIMUM_OPENCL_VERSION 100
#endif
#if CL_HPP_MINIMUM_OPENCL_VERSION > CL_HPP_TARGET_OPENCL_VERSION
# error "CL_HPP_MINIMUM_OPENCL_VERSION must not be greater than CL_HPP_TARGET_OPENCL_VERSION"
#endif
#if CL_HPP_MINIMUM_OPENCL_VERSION <= 100 && !defined(CL_USE_DEPRECATED_OPENCL_1_0_APIS)
# define CL_USE_DEPRECATED_OPENCL_1_0_APIS
#endif
#if CL_HPP_MINIMUM_OPENCL_VERSION <= 110 && !defined(CL_USE_DEPRECATED_OPENCL_1_1_APIS)
# define CL_USE_DEPRECATED_OPENCL_1_1_APIS
#endif
#if CL_HPP_MINIMUM_OPENCL_VERSION <= 120 && !defined(CL_USE_DEPRECATED_OPENCL_1_2_APIS)
# define CL_USE_DEPRECATED_OPENCL_1_2_APIS
#endif
#if CL_HPP_MINIMUM_OPENCL_VERSION <= 200 && !defined(CL_USE_DEPRECATED_OPENCL_2_0_APIS)
# define CL_USE_DEPRECATED_OPENCL_2_0_APIS
#endif
#ifdef _WIN32
#include <malloc.h>
#if defined(CL_HPP_USE_DX_INTEROP)
#include <CL/cl_d3d10.h>
#include <CL/cl_dx9_media_sharing.h>
#endif
#endif // _WIN32
#if defined(_MSC_VER)
#include <intrin.h>
#endif // _MSC_VER
// Check for a valid C++ version
// Need to do both tests here because for some reason __cplusplus is not
// updated in visual studio
#if (!defined(_MSC_VER) && __cplusplus < 201103L) || (defined(_MSC_VER) && _MSC_VER < 1700)
#error Visual studio 2013 or another C++11-supporting compiler required
#endif
//
#if defined(CL_HPP_USE_CL_DEVICE_FISSION) || defined(CL_HPP_USE_CL_SUB_GROUPS_KHR)
#include <CL/cl_ext.h>
10BC8
#endif
#if defined(__APPLE__) || defined(__MACOSX)
#include <OpenCL/opencl.h>
#else
#include <CL/opencl.h>
#endif // !__APPLE__
#if (__cplusplus >= 201103L)
#define CL_HPP_NOEXCEPT_ noexcept
#else
#define CL_HPP_NOEXCEPT_
#endif
#if defined(_MSC_VER)
# define CL_HPP_DEFINE_STATIC_MEMBER_ __declspec(selectany)
#else
# define CL_HPP_DEFINE_STATIC_MEMBER_ __attribute__((weak))
#endif // !_MSC_VER
// Define deprecated prefixes and suffixes to ensure compilation
// in case they are not pre-defined
#if !defined(CL_EXT_PREFIX__VERSION_1_1_DEPRECATED)
#define CL_EXT_PREFIX__VERSION_1_1_DEPRECATED
#endif // #if !defined(CL_EXT_PREFIX__VERSION_1_1_DEPRECATED)
#if !defined(CL_EXT_SUFFIX__VERSION_1_1_DEPRECATED)
#define CL_EXT_SUFFIX__VERSION_1_1_DEPRECATED
#endif // #if !defined(CL_EXT_PREFIX__VERSION_1_1_DEPRECATED)
#if !defined(CL_EXT_PREFIX__VERSION_1_2_DEPRECATED)
#define CL_EXT_PREFIX__VERSION_1_2_DEPRECATED
#endif // #if !defined(CL_EXT_PREFIX__VERSION_1_2_DEPRECATED)
#if !defined(CL_EXT_SUFFIX__VERSION_1_2_DEPRECATED)
#define CL_EXT_SUFFIX__VERSION_1_2_DEPRECATED
#endif // #if !defined(CL_EXT_PREFIX__VERSION_1_2_DEPRECATED)
#if !defined(CL_CALLBACK)
#define CL_CALLBACK
#endif //CL_CALLBACK
#include <utility>
#include <limits>
#include <iterator>
#include <mutex>
#include <cstring>
#include <functional>
// Define a size_type to represent a correctly resolved size_t
#if defined(CL_HPP_ENABLE_SIZE_T_COMPATIBILITY)
namespace cl {
using size_type = ::size_t;
} // namespace cl
#else // #if defined(CL_HPP_ENABLE_SIZE_T_COMPATIBILITY)
namespace cl {
using size_type = size_t;
} // namespace cl
#endif // #if defined(CL_HPP_ENABLE_SIZE_T_COMPATIBILITY)
#if defined(CL_HPP_ENABLE_EXCEPTIONS)
#include <exception>
#endif // #if defined(CL_HPP_ENABLE_EXCEPTIONS)
#if !defined(CL_HPP_NO_STD_VECTOR)
#include <vector>
namespace cl {
template < class T, class Alloc = std::allocator<T> >
using vector = std::vector<T, Alloc>;
} // namespace cl
#endif // #if !defined(CL_HPP_NO_STD_VECTOR)
#if !defined(CL_HPP_NO_STD_STRING)
#include <string>
namespace cl {
using string = std::string;
} // namespace cl
#endif // #if !defined(CL_HPP_NO_STD_STRING)
#if CL_HPP_TARGET_OPENCL_VERSION >= 200
#if !defined(CL_HPP_NO_STD_UNIQUE_PTR)
#include <memory>
namespace cl {
// Replace unique_ptr and allocate_pointer for internal use
// to allow user to replace them
template<class T, class D>
using pointer = std::unique_ptr<T, D>;
} // namespace cl
#endif
#endif // #if CL_HPP_TARGET_OPENCL_VERSION >= 200
#if !defined(CL_HPP_NO_STD_ARRAY)
#include <array>
namespace cl {
template < class T, size_type N >
using array = std::array<T, N>;
} // namespace cl
#endif // #if !defined(CL_HPP_NO_STD_ARRAY)
// Define size_type appropriately to allow backward-compatibility
// use of the old size_t interface class
#if defined(CL_HPP_ENABLE_SIZE_T_COMPATIBILITY)
namespace cl {
namespace compatibility {
/*! \brief class used to interface between C++ and
* OpenCL C calls that require arrays of size_t values, whose
* size is known statically.
*/
template <int N>
class size_t
{
private:
size_type data_[N];
public:
//! \brief Initialize size_t to all 0s
size_t()
{
for (int i = 0; i < N; ++i) {
data_[i] = 0;
}
}
size_t(const array<size_type, N> &rhs)
{
for (int i = 0; i < N; ++i) {
data_[i] = rhs[i];
}
}
size_type& operator[](int index)
{
return data_[index];
}
const size_type& operator[](int index) const
{
return data_[index];
}
//! \brief Conversion operator to T*.
operator size_type* () { return data_; }
//! \brief Conversion operator to const T*.
operator const size_type* () const { return data_; }
operator array<size_type, N>() const
{
array<size_type, N> ret;
for (int i = 0; i < N; ++i) {
ret[i] = data_[i];
}
return ret;
}
};
} // namespace compatibility
template<int N>
using size_t = compatibility::size_t<N>;
} // namespace cl
#endif // #if defined(CL_HPP_ENABLE_SIZE_T_COMPATIBILITY)
// Helper alias to avoid confusing the macros
namespace cl {
namespace detail {
using size_t_array = array<size_type, 3>;
} // namespace detail
} // namespace cl
/*! \namespace cl
*
* \brief The OpenCL C++ bindings are defined within this namespace.
*
*/
namespace cl {
class Memory;
#define CL_HPP_INIT_CL_EXT_FCN_PTR_(name) \
if (!pfn_##name) { \
pfn_##name = (PFN_##name) \
clGetExtensionFunctionAddress(#name); \
if (!pfn_##name) { \
} \
}
#define CL_HPP_INIT_CL_EXT_FCN_PTR_PLATFORM_(platform, name) \
if (!pfn_##name) { \
pfn_##name = (PFN_##name) \
clGetExtensionFunctionAddressForPlatform(platform, #name); \
if (!pfn_##name) { \
} \
}
class Program;
class Device;
class Context;
class CommandQueue;
class DeviceCommandQueue;
class Memory;
class Buffer;
class Pipe;
#if defined(CL_HPP_ENABLE_EXCEPTIONS)
/*! \brief Exception class
*
* This may be thrown by API functions when CL_HPP_ENABLE_EXCEPTIONS is defined.
*/
class Error : public std::exception
{
private:
cl_int err_;
const char * errStr_;
public:
/*! \brief Create a new CL error exception for a given error code
* and corresponding message.
*
* \param err error code value.
*
* \param errStr a descriptive string that must remain in scope until
* handling of the exception has concluded. If set, it
* will be returned by what().
*/
Error(cl_int err, const char * errStr = NULL) : err_(err), errStr_(errStr)
{}
~Error() throw() {}
/*! \brief Get error string associated with exception
*
* \return A memory pointer to the error message string.
*/
virtual const char * what() const throw ()
{
if (errStr_ == NULL) {
return "empty";
}
else {
return errStr_;
}
}
/*! \brief Get error code associated with exception
*
* \return The error code.
*/
cl_int err(void) const { return err_; }
};
#define CL_HPP_ERR_STR_(x) #x
#else
#define CL_HPP_ERR_STR_(x) NULL
#endif // CL_HPP_ENABLE_EXCEPTIONS
namespace detail
{
#if defined(CL_HPP_ENABLE_EXCEPTIONS)
static inline cl_int errHandler (
cl_int err,
const char * errStr = NULL)
{
if (err != CL_SUCCESS) {
throw Error(err, errStr);
}
return err;
}
#else
static inline cl_int errHandler (cl_int err, const char * errStr = NULL)
{
(void) errStr; // suppress unused variable warning
return err;
}
#endif // CL_HPP_ENABLE_EXCEPTIONS
}
//! \cond DOXYGEN_DETAIL
#if !defined(CL_HPP_USER_OVERRIDE_ERROR_STRINGS)
#define __GET_DEVICE_INFO_ERR CL_HPP_ERR_STR_(clGetDeviceInfo)
#define __GET_PLATFORM_INFO_ERR CL_HPP_ERR_STR_(clGetPlatformInfo)
#define __GET_DEVICE_IDS_ERR CL_HPP_ERR_STR_(clGetDeviceIDs)
#define __GET_PLATFORM_IDS_ERR CL_HPP_ERR_STR_(clGetPlatformIDs)
#define __GET_CONTEXT_INFO_ERR CL_HPP_ERR_STR_(clGetContextInfo)
#define __GET_EVENT_INFO_ERR CL_HPP_ERR_STR_(clGetEventInfo)
#define __GET_EVENT_PROFILE_INFO_ERR CL_HPP_ERR_STR_(clGetEventProfileInfo)
#define __GET_MEM_OBJECT_INFO_ERR CL_HPP_ERR_STR_(clGetMemObjectInfo)
#define __GET_IMAGE_INFO_ERR CL_HPP_ERR_STR_(clGetImageInfo)
#define __GET_SAMPLER_INFO_ERR CL_HPP_ERR_STR_(clGetSamplerInfo)
#define __GET_KERNEL_INFO_ERR CL_HPP_ERR_STR_(clGetKernelInfo)
#if CL_HPP_TARGET_OPENCL_VERSION >= 120
#define __GET_KERNEL_ARG_INFO_ERR CL_HPP_ERR_STR_(clGetKernelArgInfo)
#endif // CL_HPP_TARGET_OPENCL_VERSION >= 120
#define __GET_KERNEL_WORK_GROUP_INFO_ERR CL_HPP_ERR_STR_(clGetKernelWorkGroupInfo)
#define __GET_PROGRAM_INFO_ERR CL_HPP_ERR_STR_(clGetProgramInfo)
#define __GET_PROGRAM_BUILD_INFO_ERR CL_HPP_ERR_STR_(clGetProgramBuildInfo)
#define __GET_COMMAND_QUEUE_INFO_ERR CL_HPP_ERR_STR_(clGetCommandQueueInfo)
#define __CREATE_CONTEXT_ERR CL_HPP_ERR_STR_(clCreateContext)
#define __CREATE_CONTEXT_FROM_TYPE_ERR CL_HPP_ERR_STR_(clCreateContextFromType)
#define __GET_SUPPORTED_IMAGE_FORMATS_ERR CL_HPP_ERR_STR_(clGetSupportedImageFormats)
#define __CREATE_BUFFER_ERR CL_HPP_ERR_STR_(clCreateBuffer)
#define __COPY_ERR CL_HPP_ERR_STR_(cl::copy)
#define __CREATE_SUBBUFFER_ERR CL_HPP_ERR_STR_(clCreateSubBuffer)
#define __CREATE_GL_BUFFER_ERR CL_HPP_ERR_STR_(clCreateFromGLBuffer)
#define __CREATE_GL_RENDER_BUFFER_ERR CL_HPP_ERR_STR_(clCreateFromGLBuffer)
#define __GET_GL_OBJECT_INFO_ERR CL_HPP_ERR_STR_(clGetGLObjectInfo)
#if CL_HPP_TARGET_OPENCL_VERSION >= 120
#define __CREATE_IMAGE_ERR CL_HPP_ERR_STR_(clCreateImage)
#define __CREATE_GL_TEXTURE_ERR CL_HPP_ERR_STR_(clCreateFromGLTexture)
#define __IMAGE_DIMENSION_ERR CL_HPP_ERR_STR_(Incorrect image dimensions)
#endif // CL_HPP_TARGET_OPENCL_VERSION >= 120
#define __SET_MEM_OBJECT_DESTRUCTOR_CALLBACK_ERR CL_HPP_ERR_STR_(clSetMemObjectDestructorCallback)
#define __CREATE_USER_EVENT_ERR CL_HPP_ERR_STR_(clCreateUserEvent)
#define __SET_USER_EVENT_STATUS_ERR CL_HPP_ERR_STR_(clSetUserEventStatus)
#define __SET_EVENT_CALLBACK_ERR CL_HPP_ERR_STR_(clSetEventCallback)
#define __WAIT_FOR_EVENTS_ERR CL_HPP_ERR_STR_(clWaitForEvents)
#define __CREATE_KERNEL_ERR CL_HPP_ERR_STR_(clCreateKernel)
#define __SET_KERNEL_ARGS_ERR CL_HPP_ERR_STR_(clSetKernelArg)
#define __CREATE_PROGRAM_WITH_SOURCE_ERR CL_HPP_ERR_STR_(clCreateProgramWithSource)
#define __CREATE_PROGRAM_WITH_BINARY_ERR CL_HPP_ERR_STR_(clCreateProgramWithBinary)
#if CL_HPP_TARGET_OPENCL_VERSION >= 120
#define __CREATE_PROGRAM_WITH_BUILT_IN_KERNELS_ERR CL_HPP_ERR_STR_(clCreateProgramWithBuiltInKernels)
#endif // CL_HPP_TARGET_OPENCL_VERSION >= 120
#define __BUILD_PROGRAM_ERR CL_HPP_ERR_STR_(clBuildProgram)
#if CL_HPP_TARGET_OPENCL_VERSION >= 120
#define __COMPILE_PROGRAM_ERR CL_HPP_ERR_STR_(clCompileProgram)
#define __LINK_PROGRAM_ERR CL_HPP_ERR_STR_(clLinkProgram)
#endif // CL_HPP_TARGET_OPENCL_VERSION >= 120
#define __CREATE_KERNELS_IN_PROGRAM_ERR CL_HPP_ERR_STR_(clCreateKernelsInProgram)
#if CL_HPP_TARGET_OPENCL_VERSION >= 200
#define __CREATE_COMMAND_QUEUE_WITH_PROPERTIES_ERR CL_HPP_ERR_STR_(clCreateCommandQueueWithProperties)
#define __CREATE_SAMPLER_WITH_PROPERTIES_ERR CL_HPP_ERR_STR_(clCreateSamplerWithProperties)
#endif // CL_HPP_TARGET_OPENCL_VERSION >= 200
#define __SET_COMMAND_QUEUE_PROPERTY_ERR CL_HPP_ERR_STR_(clSetCommandQueueProperty)
#define __ENQUEUE_READ_BUFFER_ERR CL_HPP_ERR_STR_(clEnqueueReadBuffer)
#define __ENQUEUE_READ_BUFFER_RECT_ERR CL_HPP_ERR_STR_(clEnqueueReadBufferRect)
#define __ENQUEUE_WRITE_BUFFER_ERR CL_HPP_ERR_STR_(clEnqueueWriteBuffer)
#define __ENQUEUE_WRITE_BUFFER_RECT_ERR CL_HPP_ERR_STR_(clEnqueueWriteBufferRect)
#define __ENQEUE_COPY_BUFFER_ERR CL_HPP_ERR_STR_(clEnqueueCopyBuffer)
#define __ENQEUE_COPY_BUFFER_RECT_ERR CL_HPP_ERR_STR_(clEnqueueCopyBufferRect)
#define __ENQUEUE_FILL_BUFFER_ERR CL_HPP_ERR_STR_(clEnqueueFillBuffer)
#define __ENQUEUE_READ_IMAGE_ERR CL_HPP_ERR_STR_(clEnqueueReadImage)
#define __ENQUEUE_WRITE_IMAGE_ERR CL_HPP_ERR_STR_(clEnqueueWriteImage)
#define __ENQUEUE_COPY_IMAGE_ERR CL_HPP_ERR_STR_(clEnqueueCopyImage)
#define __ENQUEUE_FILL_IMAGE_ERR CL_HPP_ERR_STR_(clEnqueueFillImage)
#define __ENQUEUE_COPY_IMAGE_TO_BUFFER_ERR CL_HPP_ERR_STR_(clEnqueueCopyImageToBuffer)
#define __ENQUEUE_COPY_BUFFER_TO_IMAGE_ERR CL_HPP_ERR_STR_(clEnqueueCopyBufferToImage)
#define __ENQUEUE_MAP_BUFFER_ERR CL_HPP_ERR_STR_(clEnqueueMapBuffer)
#define __ENQUEUE_MAP_IMAGE_ERR CL_HPP_ERR_STR_(clEnqueueMapImage)
#define __ENQUEUE_UNMAP_MEM_OBJECT_ERR CL_HPP_ERR_STR_(clEnqueueUnMapMemObject)
#define __ENQUEUE_NDRANGE_KERNEL_ERR CL_HPP_ERR_STR_(clEnqueueNDRangeKernel)
#define __ENQUEUE_NATIVE_KERNEL CL_HPP_ERR_STR_(clEnqueueNativeKernel)
#if CL_HPP_TARGET_OPENCL_VERSION >= 120
#define __ENQUEUE_MIGRATE_MEM_OBJECTS_ERR CL_HPP_ERR_STR_(clEnqueueMigrateMemObjects)
#endif // CL_HPP_TARGET_OPENCL_VERSION >= 120
#define __ENQUEUE_ACQUIRE_GL_ERR CL_HPP_ERR_STR_(clEnqueueAcquireGLObjects)
#define __ENQUEUE_RELEASE_GL_ERR CL_HPP_ERR_STR_(clEnqueueReleaseGLObjects)
#define __CREATE_PIPE_ERR CL_HPP_ERR_STR_(clCreatePipe)
#define __GET_PIPE_INFO_ERR CL_HPP_ERR_STR_(clGetPipeInfo)
#define __RETAIN_ERR CL_HPP_ERR_STR_(Retain Object)
#define __RELEASE_ERR CL_HPP_ERR_STR_(Release Object)
#define __FLUSH_ERR CL_HPP_ERR_STR_(clFlush)
#define __FINISH_ERR CL_HPP_ERR_STR_(clFinish)
#define __VECTOR_CAPACITY_ERR CL_HPP_ERR_STR_(Vector capacity error)
/**
* CL 1.2 version that uses device fission.
*/
#if CL_HPP_TARGET_OPENCL_VERSION >= 120
#define __CREATE_SUB_DEVICES_ERR CL_HPP_ERR_STR_(clCreateSubDevices)
#else
#define __CREATE_SUB_DEVICES_ERR CL_HPP_ERR_STR_(clCreateSubDevicesEXT)
#endif // CL_HPP_TARGET_OPENCL_VERSION >= 120
/**
* Deprecated APIs for 1.2
*/
#if defined(CL_USE_DEPRECATED_OPENCL_1_1_APIS)
#define __ENQUEUE_MARKER_ERR CL_HPP_ERR_STR_(clEnqueueMarker)
#define __ENQUEUE_WAIT_FOR_EVENTS_ERR CL_HPP_ERR_STR_(clEnqueueWaitForEvents)
#define __ENQUEUE_BARRIER_ERR CL_HPP_ERR_STR_(clEnqueueBarrier)
#define __UNLOAD_COMPILER_ERR CL_HPP_ERR_STR_(clUnloadCompiler)
#define __CREATE_GL_TEXTURE_2D_ERR CL_HPP_ERR_STR_(clCreateFromGLTexture2D)
#define __CREATE_GL_TEXTURE_3D_ERR CL_HPP_ERR_STR_(clCreateFromGLTexture3D)
#define __CREATE_IMAGE2D_ERR CL_HPP_ERR_STR_(clCreateImage2D)
#define __CREATE_IMAGE3D_ERR CL_HPP_ERR_STR_(clCreateImage3D)
#endif // #if defined(CL_USE_DEPRECATED_OPENCL_1_1_APIS)
/**
* Deprecated APIs for 2.0
*/
#if defined(CL_USE_DEPRECATED_OPENCL_1_2_APIS)
#define __CREATE_COMMAND_QUEUE_ERR CL_HPP_ERR_STR_(clCreateCommandQueue)
#define __ENQUEUE_TASK_ERR CL_HPP_ERR_STR_(clEnqueueTask)
#define __CREATE_SAMPLER_ERR CL_HPP_ERR_STR_(clCreateSampler)
#endif // #if defined(CL_USE_DEPRECATED_OPENCL_1_1_APIS)
/**
* CL 1.2 marker and barrier commands
*/
#if CL_HPP_TARGET_OPENCL_VERSION >= 120
#define __ENQUEUE_MARKER_WAIT_LIST_ERR CL_HPP_ERR_STR_(clEnqueueMarkerWithWaitList)
#define __ENQUEUE_BARRIER_WAIT_LIST_ERR CL_HPP_ERR_STR_(clEnqueueBarrierWithWaitList)
#endif // CL_HPP_TARGET_OPENCL_VERSION >= 120
#endif // CL_HPP_USER_OVERRIDE_ERROR_STRINGS
//! \endcond
namespace detail {
// Generic getInfoHelper. The final parameter is used to guide overload
// resolution: the actual parameter passed is an int, which makes this
// a worse conversion sequence than a specialization that declares the
// parameter as an int.
template<typename Functor, typename T>
inline cl_int getInfoHelper(Functor f, cl_uint name, T* param, long)
{
return f(name, sizeof(T), param, NULL);
}
// Specialized for getInfo<CL_PROGRAM_BINARIES>
// Assumes that the output vector was correctly resized on the way in
template <typename Func>
inline cl_int getInfoHelper(Func f, cl_uint name, vector<vector<unsigned char>>* param, int)
{
if (name != CL_PROGRAM_BINARIES) {
return CL_INVALID_VALUE;
}
if (param) {
// Create array of pointers, calculate total size and pass pointer array in
size_type numBinaries = param->size();
vector<unsigned char*> binariesPointers(numBinaries);
for (size_type i = 0; i < numBinaries; ++i)
{
binariesPointers[i] = (*param)[i].data();
}
cl_int err = f(name, numBinaries * sizeof(unsigned char*), binariesPointers.data(), NULL);
if (err != CL_SUCCESS) {
return err;
}
}
return CL_SUCCESS;
}
// Specialized getInfoHelper for vector params
template <typename Func, typename T>
inline cl_int getInfoHelper(Func f, cl_uint name, vector<T>* param, long)
{
size_type required;
cl_int err = f(name, 0, NULL, &required);
if (err != CL_SUCCESS) {
return err;
}
const size_type elements = required / sizeof(T);
// Temporary to avoid changing param on an error
vector<T> localData(elements);
err = f(name, required, localData.data(), NULL);
if (err != CL_SUCCESS) {
return err;
}
if (param) {
*param = std::move(localData);
}
return CL_SUCCESS;
}
/* Specialization for reference-counted types. This depends on the
* existence of Wrapper<T>::cl_type, and none of the other types having the
* cl_type member. Note that simplify specifying the parameter as Wrapper<T>
* does not work, because when using a derived type (e.g. Context) the generic
* template will provide a better match.
*/
template <typename Func, typename T>
inline cl_int getInfoHelper(
Func f, cl_uint name, vector<T>* param, int, typename T::cl_type = 0)
{
size_type required;
cl_int err = f(name, 0, NULL, &required);
if (err != CL_SUCCESS) {
return err;