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Revision 1.16 by root, Thu Nov 17 03:42:03 2011 UTC vs.
Revision 1.37 by root, Thu Apr 19 14:36:46 2012 UTC

27OpenCL::Program objects, which store source code and, after building for a 27OpenCL::Program objects, which store source code and, after building for a
28specific device ("compiling and linking"), also binary programs. For each 28specific device ("compiling and linking"), also binary programs. For each
29kernel function in a program you can then create an OpenCL::Kernel object 29kernel function in a program you can then create an OpenCL::Kernel object
30which represents basically a function call with argument values. 30which represents basically a function call with argument values.
31 31
32OpenCL::Memory objects of various flavours: OpenCL::Buffers objects (flat 32OpenCL::Memory objects of various flavours: OpenCL::Buffer objects (flat
33memory areas, think arrays or structs) and OpenCL::Image objects (think 2d 33memory areas, think arrays or structs) and OpenCL::Image objects (think 2d
34or 3d array) for bulk data and input and output for kernels. 34or 3d array) for bulk data and input and output for kernels.
35 35
36OpenCL::Sampler objects, which are kind of like texture filter modes in 36OpenCL::Sampler objects, which are kind of like texture filter modes in
37OpenGL. 37OpenGL.
52 52
53OpenCL manpages: 53OpenCL manpages:
54 54
55 http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/ 55 http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/
56 56
57If you are into UML class diagrams, the following diagram might help - if
58not, it will be mildly cobfusing:
59
60 http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/classDiagram.html
61
57Here's a tutorial from AMD (very AMD-centric, too), not sure how useful it 62Here's a tutorial from AMD (very AMD-centric, too), not sure how useful it
58is, but at least it's free of charge: 63is, but at least it's free of charge:
59 64
60 http://developer.amd.com/zones/OpenCLZone/courses/Documents/Introduction_to_OpenCL_Programming%20Training_Guide%20%28201005%29.pdf 65 http://developer.amd.com/zones/OpenCLZone/courses/Documents/Introduction_to_OpenCL_Programming%20Training_Guide%20%28201005%29.pdf
61 66
62If you are into UML class diagrams, the following diagram might help - if 67And here's NVIDIA's OpenCL Best Practises Guide:
63not, it will be mildly cofusing:
64 68
65 http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/classDiagram.html 69 http://developer.download.nvidia.com/compute/cuda/3_2/toolkit/docs/OpenCL_Best_Practices_Guide.pdf
66 70
67=head1 BASIC WORKFLOW 71=head1 BASIC WORKFLOW
68 72
69To get something done, you basically have to do this once (refer to the 73To get something done, you basically have to do this once (refer to the
70examples below for actual code, this is just a high-level description): 74examples below for actual code, this is just a high-level description):
97 101
98Best run this once to get a feel for the platforms and devices in your 102Best run this once to get a feel for the platforms and devices in your
99system. 103system.
100 104
101 for my $platform (OpenCL::platforms) { 105 for my $platform (OpenCL::platforms) {
102 printf "platform: %s\n", $platform->info (OpenCL::PLATFORM_NAME); 106 printf "platform: %s\n", $platform->name;
103 printf "extensions: %s\n", $platform->info (OpenCL::PLATFORM_EXTENSIONS); 107 printf "extensions: %s\n", $platform->extensions;
104 for my $device ($platform->devices) { 108 for my $device ($platform->devices) {
105 printf "+ device: %s\n", $device->info (OpenCL::DEVICE_NAME); 109 printf "+ device: %s\n", $device->name;
106 my $ctx = $device->context; 110 my $ctx = $platform->context (undef, [$device]);
107 # do stuff 111 # do stuff
108 } 112 }
109 } 113 }
110 114
111=head2 Get a useful context and a command queue. 115=head2 Get a useful context and a command queue.
145 149
146=head2 Create and build a program, then create a kernel out of one of its 150=head2 Create and build a program, then create a kernel out of one of its
147functions. 151functions.
148 152
149 my $src = ' 153 my $src = '
150 __kernel void 154 kernel void
151 squareit (__global float *input, __global float *output) 155 squareit (global float *input, global float *output)
152 { 156 {
153 $id = get_global_id (0); 157 $id = get_global_id (0);
154 output [id] = input [id] * input [id]; 158 output [id] = input [id] * input [id];
155 } 159 }
156 '; 160 ';
157 161
158 my $prog = $ctx->program_with_source ($src); 162 my $prog = $ctx->program_with_source ($src);
159 163
160 # build croaks on compile errors, so catch it and print the compile errors 164 # build croaks on compile errors, so catch it and print the compile errors
161 eval { $prog->build ($dev); 1 } 165 eval { $prog->build ($dev); 1 }
162 or die $prog->build_info ($dev, OpenCL::PROGRAM_BUILD_LOG); 166 or die $prog->build_log;
163 167
164 my $kernel = $prog->kernel ("squareit"); 168 my $kernel = $prog->kernel ("squareit");
165 169
166=head2 Create some input and output float buffers, then call the 170=head2 Create some input and output float buffers, then call the
167'squareit' kernel on them. 171'squareit' kernel on them.
222 226
223=item * Object lifetime managament is automatic - there is no need 227=item * Object lifetime managament is automatic - there is no need
224to free objects explicitly (C<clReleaseXXX>), the release function 228to free objects explicitly (C<clReleaseXXX>), the release function
225is called automatically once all Perl references to it go away. 229is called automatically once all Perl references to it go away.
226 230
227=item * OpenCL uses CamelCase for function names (C<clGetPlatformInfo>), 231=item * OpenCL uses CamelCase for function names
232(e.g. C<clGetPlatformIDs>, C<clGetPlatformInfo>), while this module
228while this module uses underscores as word separator and often leaves out 233uses underscores as word separator and often leaves out prefixes
229prefixes (C<< $platform->info >>). 234(C<OpenCL::platforms>, C<< $platform->info >>).
230 235
231=item * OpenCL often specifies fixed vector function arguments as short 236=item * OpenCL often specifies fixed vector function arguments as short
232arrays (C<$origin[3]>), while this module explicitly expects the 237arrays (C<size_t origin[3]>), while this module explicitly expects the
233components as separate arguments- 238components as separate arguments (C<$orig_x, $orig_y, $orig_z>) in
239function calls.
234 240
235=item * Structures are often specified with their components, and returned 241=item * Structures are often specified by flattening out their components
236as arrayrefs. 242as with short vectors, and returned as arrayrefs.
237
238=item * Where possible, one of the pitch values is calculated from the
239perl scalar length and need not be specified.
240 243
241=item * When enqueuing commands, the wait list is specified by adding 244=item * When enqueuing commands, the wait list is specified by adding
242extra arguments to the function - anywhere a C<$wait_events...> argument 245extra arguments to the function - anywhere a C<$wait_events...> argument
243is documented this can be any number of event objects. 246is documented this can be any number of event objects.
244 247
268 ulong IV - Q 271 ulong IV - Q
269 float NV float f 272 float NV float f
270 half IV ushort S 273 half IV ushort S
271 double NV double d 274 double NV double d
272 275
276=head2 GLX SUPPORT
277
278Due to the sad state that OpenGL support is in in Perl (mostly the OpenGL
279module, which has little to no documentation and has little to no support
280for glx), this module, as a special extension, treats context creation
281properties C<OpenCL::GLX_DISPLAY_KHR> and C<OpenCL::GL_CONTEXT_KHR>
282specially: If either or both of these are C<undef>, then the OpenCL
283module tries to dynamically resolve C<glxGetCurrentDisplay> and
284C<glxGetCurrentContext>, call these functions and use their return values
285instead.
286
287For this to work, the OpenGL library must be loaded, a GLX context must
288have been created and be made current, and C<dlsym> must be available and
289capable of finding the function via C<RTLD_DEFAULT>.
290
273=head2 THE OpenCL PACKAGE 291=head2 THE OpenCL PACKAGE
274 292
275=over 4 293=over 4
276 294
277=item $int = OpenCL::errno 295=item $int = OpenCL::errno
283 301
284Comverts an error value into a human readable string. 302Comverts an error value into a human readable string.
285 303
286=item $str = OpenCL::enum2str $enum 304=item $str = OpenCL::enum2str $enum
287 305
288Converts most enum values (inof parameter names, image format constants, 306Converts most enum values (of parameter names, image format constants,
289object types, addressing and filter modes, command types etc.) into a 307object types, addressing and filter modes, command types etc.) into a
290human readbale string. When confronted with some random integer it can be 308human readable string. When confronted with some random integer it can be
291very helpful to pass it through this function to maybe get some readable 309very helpful to pass it through this function to maybe get some readable
292string out of it. 310string out of it.
293 311
294=item @platforms = OpenCL::platforms 312=item @platforms = OpenCL::platforms
295 313
313 331
314=head2 THE OpenCL::Platform CLASS 332=head2 THE OpenCL::Platform CLASS
315 333
316=over 4 334=over 4
317 335
318=item $packed_value = $platform->info ($name)
319
320Calls C<clGetPlatformInfo> and returns the packed, raw value - for
321strings, this will be the string, for other values you probably need to
322use the correct C<unpack>. This might get improved in the future. Hopefully.
323
324L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetPlatformInfo.html>
325
326=item @devices = $platform->devices ($type = OpenCL::DEVICE_TYPE_ALL) 336=item @devices = $platform->devices ($type = OpenCL::DEVICE_TYPE_ALL)
327 337
328Returns a list of matching OpenCL::Device objects. 338Returns a list of matching OpenCL::Device objects.
329 339
330=item $ctx = $platform->context_from_type ($properties, $type = OpenCL::DEVICE_TYPE_DEFAULT, $notify = undef) 340=item $ctx = $platform->context_from_type ($properties, $type = OpenCL::DEVICE_TYPE_DEFAULT, $notify = undef)
331 341
332Tries to create a context. Never worked for me, and you need devices explitly anyway. 342Tries to create a context. Never worked for me, and you need devices explicitly anyway.
333 343
334L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateContextFromType.html> 344L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateContextFromType.html>
335 345
336=item $ctx = $device->context ($properties = undef, @$devices, $notify = undef) 346=item $ctx = $platform->context ($properties = undef, @$devices, $notify = undef)
337 347
338Create a new OpenCL::Context object using the given device object(s)- a 348Create a new OpenCL::Context object using the given device object(s)- a
339CL_CONTEXT_PLATFORM property is supplied automatically. 349CL_CONTEXT_PLATFORM property is supplied automatically.
340 350
341L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateContext.html> 351L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateContext.html>
342 352
353=item $packed_value = $platform->info ($name)
354
355Calls C<clGetPlatformInfo> and returns the packed, raw value - for
356strings, this will be the string (possibly including terminating \0), for
357other values you probably need to use the correct C<unpack>.
358
359It's best to avoid this method and use one of the following convenience
360wrappers.
361
362L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetPlatformInfo.html>
363
364=for gengetinfo begin platform
365
366=item $string = $platform->profile
367
368Calls C<clGetPlatformInfo> with C<CL_PLATFORM_PROFILE> and returns the result.
369
370=item $string = $platform->version
371
372Calls C<clGetPlatformInfo> with C<CL_PLATFORM_VERSION> and returns the result.
373
374=item $string = $platform->name
375
376Calls C<clGetPlatformInfo> with C<CL_PLATFORM_NAME> and returns the result.
377
378=item $string = $platform->vendor
379
380Calls C<clGetPlatformInfo> with C<CL_PLATFORM_VENDOR> and returns the result.
381
382=item $string = $platform->extensions
383
384Calls C<clGetPlatformInfo> with C<CL_PLATFORM_EXTENSIONS> and returns the result.
385
386=for gengetinfo end platform
387
343=back 388=back
344 389
345=head2 THE OpenCL::Device CLASS 390=head2 THE OpenCL::Device CLASS
346 391
347=over 4 392=over 4
350 395
351See C<< $platform->info >> for details. 396See C<< $platform->info >> for details.
352 397
353L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetDeviceInfo.html> 398L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetDeviceInfo.html>
354 399
400=for gengetinfo begin device
401
402=item $device_type = $device->type
403
404Calls C<clGetDeviceInfo> with C<CL_DEVICE_TYPE> and returns the result.
405
406=item $uint = $device->vendor_id
407
408Calls C<clGetDeviceInfo> with C<CL_DEVICE_VENDOR_ID> and returns the result.
409
410=item $uint = $device->max_compute_units
411
412Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_COMPUTE_UNITS> and returns the result.
413
414=item $uint = $device->max_work_item_dimensions
415
416Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_WORK_ITEM_DIMENSIONS> and returns the result.
417
418=item $int = $device->max_work_group_size
419
420Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_WORK_GROUP_SIZE> and returns the result.
421
422=item @ints = $device->max_work_item_sizes
423
424Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_WORK_ITEM_SIZES> and returns the result.
425
426=item $uint = $device->preferred_vector_width_char
427
428Calls C<clGetDeviceInfo> with C<CL_DEVICE_PREFERRED_VECTOR_WIDTH_CHAR> and returns the result.
429
430=item $uint = $device->preferred_vector_width_short
431
432Calls C<clGetDeviceInfo> with C<CL_DEVICE_PREFERRED_VECTOR_WIDTH_SHORT> and returns the result.
433
434=item $uint = $device->preferred_vector_width_int
435
436Calls C<clGetDeviceInfo> with C<CL_DEVICE_PREFERRED_VECTOR_WIDTH_INT> and returns the result.
437
438=item $uint = $device->preferred_vector_width_long
439
440Calls C<clGetDeviceInfo> with C<CL_DEVICE_PREFERRED_VECTOR_WIDTH_LONG> and returns the result.
441
442=item $uint = $device->preferred_vector_width_float
443
444Calls C<clGetDeviceInfo> with C<CL_DEVICE_PREFERRED_VECTOR_WIDTH_FLOAT> and returns the result.
445
446=item $uint = $device->preferred_vector_width_double
447
448Calls C<clGetDeviceInfo> with C<CL_DEVICE_PREFERRED_VECTOR_WIDTH_DOUBLE> and returns the result.
449
450=item $uint = $device->max_clock_frequency
451
452Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_CLOCK_FREQUENCY> and returns the result.
453
454=item $bitfield = $device->address_bits
455
456Calls C<clGetDeviceInfo> with C<CL_DEVICE_ADDRESS_BITS> and returns the result.
457
458=item $uint = $device->max_read_image_args
459
460Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_READ_IMAGE_ARGS> and returns the result.
461
462=item $uint = $device->max_write_image_args
463
464Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_WRITE_IMAGE_ARGS> and returns the result.
465
466=item $ulong = $device->max_mem_alloc_size
467
468Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_MEM_ALLOC_SIZE> and returns the result.
469
470=item $int = $device->image2d_max_width
471
472Calls C<clGetDeviceInfo> with C<CL_DEVICE_IMAGE2D_MAX_WIDTH> and returns the result.
473
474=item $int = $device->image2d_max_height
475
476Calls C<clGetDeviceInfo> with C<CL_DEVICE_IMAGE2D_MAX_HEIGHT> and returns the result.
477
478=item $int = $device->image3d_max_width
479
480Calls C<clGetDeviceInfo> with C<CL_DEVICE_IMAGE3D_MAX_WIDTH> and returns the result.
481
482=item $int = $device->image3d_max_height
483
484Calls C<clGetDeviceInfo> with C<CL_DEVICE_IMAGE3D_MAX_HEIGHT> and returns the result.
485
486=item $int = $device->image3d_max_depth
487
488Calls C<clGetDeviceInfo> with C<CL_DEVICE_IMAGE3D_MAX_DEPTH> and returns the result.
489
490=item $uint = $device->image_support
491
492Calls C<clGetDeviceInfo> with C<CL_DEVICE_IMAGE_SUPPORT> and returns the result.
493
494=item $int = $device->max_parameter_size
495
496Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_PARAMETER_SIZE> and returns the result.
497
498=item $uint = $device->max_samplers
499
500Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_SAMPLERS> and returns the result.
501
502=item $uint = $device->mem_base_addr_align
503
504Calls C<clGetDeviceInfo> with C<CL_DEVICE_MEM_BASE_ADDR_ALIGN> and returns the result.
505
506=item $uint = $device->min_data_type_align_size
507
508Calls C<clGetDeviceInfo> with C<CL_DEVICE_MIN_DATA_TYPE_ALIGN_SIZE> and returns the result.
509
510=item $device_fp_config = $device->single_fp_config
511
512Calls C<clGetDeviceInfo> with C<CL_DEVICE_SINGLE_FP_CONFIG> and returns the result.
513
514=item $device_mem_cache_type = $device->global_mem_cache_type
515
516Calls C<clGetDeviceInfo> with C<CL_DEVICE_GLOBAL_MEM_CACHE_TYPE> and returns the result.
517
518=item $uint = $device->global_mem_cacheline_size
519
520Calls C<clGetDeviceInfo> with C<CL_DEVICE_GLOBAL_MEM_CACHELINE_SIZE> and returns the result.
521
522=item $ulong = $device->global_mem_cache_size
523
524Calls C<clGetDeviceInfo> with C<CL_DEVICE_GLOBAL_MEM_CACHE_SIZE> and returns the result.
525
526=item $ulong = $device->global_mem_size
527
528Calls C<clGetDeviceInfo> with C<CL_DEVICE_GLOBAL_MEM_SIZE> and returns the result.
529
530=item $ulong = $device->max_constant_buffer_size
531
532Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_CONSTANT_BUFFER_SIZE> and returns the result.
533
534=item $uint = $device->max_constant_args
535
536Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_CONSTANT_ARGS> and returns the result.
537
538=item $device_local_mem_type = $device->local_mem_type
539
540Calls C<clGetDeviceInfo> with C<CL_DEVICE_LOCAL_MEM_TYPE> and returns the result.
541
542=item $ulong = $device->local_mem_size
543
544Calls C<clGetDeviceInfo> with C<CL_DEVICE_LOCAL_MEM_SIZE> and returns the result.
545
546=item $boolean = $device->error_correction_support
547
548Calls C<clGetDeviceInfo> with C<CL_DEVICE_ERROR_CORRECTION_SUPPORT> and returns the result.
549
550=item $int = $device->profiling_timer_resolution
551
552Calls C<clGetDeviceInfo> with C<CL_DEVICE_PROFILING_TIMER_RESOLUTION> and returns the result.
553
554=item $boolean = $device->endian_little
555
556Calls C<clGetDeviceInfo> with C<CL_DEVICE_ENDIAN_LITTLE> and returns the result.
557
558=item $boolean = $device->available
559
560Calls C<clGetDeviceInfo> with C<CL_DEVICE_AVAILABLE> and returns the result.
561
562=item $boolean = $device->compiler_available
563
564Calls C<clGetDeviceInfo> with C<CL_DEVICE_COMPILER_AVAILABLE> and returns the result.
565
566=item $device_exec_capabilities = $device->execution_capabilities
567
568Calls C<clGetDeviceInfo> with C<CL_DEVICE_EXECUTION_CAPABILITIES> and returns the result.
569
570=item $command_queue_properties = $device->properties
571
572Calls C<clGetDeviceInfo> with C<CL_DEVICE_QUEUE_PROPERTIES> and returns the result.
573
574=item $ = $device->platform
575
576Calls C<clGetDeviceInfo> with C<CL_DEVICE_PLATFORM> and returns the result.
577
578=item $string = $device->name
579
580Calls C<clGetDeviceInfo> with C<CL_DEVICE_NAME> and returns the result.
581
582=item $string = $device->vendor
583
584Calls C<clGetDeviceInfo> with C<CL_DEVICE_VENDOR> and returns the result.
585
586=item $string = $device->driver_version
587
588Calls C<clGetDeviceInfo> with C<CL_DRIVER_VERSION> and returns the result.
589
590=item $string = $device->profile
591
592Calls C<clGetDeviceInfo> with C<CL_DEVICE_PROFILE> and returns the result.
593
594=item $string = $device->version
595
596Calls C<clGetDeviceInfo> with C<CL_DEVICE_VERSION> and returns the result.
597
598=item $string = $device->extensions
599
600Calls C<clGetDeviceInfo> with C<CL_DEVICE_EXTENSIONS> and returns the result.
601
602=item $uint = $device->preferred_vector_width_half
603
604Calls C<clGetDeviceInfo> with C<CL_DEVICE_PREFERRED_VECTOR_WIDTH_HALF> and returns the result.
605
606=item $uint = $device->native_vector_width_char
607
608Calls C<clGetDeviceInfo> with C<CL_DEVICE_NATIVE_VECTOR_WIDTH_CHAR> and returns the result.
609
610=item $uint = $device->native_vector_width_short
611
612Calls C<clGetDeviceInfo> with C<CL_DEVICE_NATIVE_VECTOR_WIDTH_SHORT> and returns the result.
613
614=item $uint = $device->native_vector_width_int
615
616Calls C<clGetDeviceInfo> with C<CL_DEVICE_NATIVE_VECTOR_WIDTH_INT> and returns the result.
617
618=item $uint = $device->native_vector_width_long
619
620Calls C<clGetDeviceInfo> with C<CL_DEVICE_NATIVE_VECTOR_WIDTH_LONG> and returns the result.
621
622=item $uint = $device->native_vector_width_float
623
624Calls C<clGetDeviceInfo> with C<CL_DEVICE_NATIVE_VECTOR_WIDTH_FLOAT> and returns the result.
625
626=item $uint = $device->native_vector_width_double
627
628Calls C<clGetDeviceInfo> with C<CL_DEVICE_NATIVE_VECTOR_WIDTH_DOUBLE> and returns the result.
629
630=item $uint = $device->native_vector_width_half
631
632Calls C<clGetDeviceInfo> with C<CL_DEVICE_NATIVE_VECTOR_WIDTH_HALF> and returns the result.
633
634=item $device_fp_config = $device->double_fp_config
635
636Calls C<clGetDeviceInfo> with C<CL_DEVICE_DOUBLE_FP_CONFIG> and returns the result.
637
638=item $device_fp_config = $device->half_fp_config
639
640Calls C<clGetDeviceInfo> with C<CL_DEVICE_HALF_FP_CONFIG> and returns the result.
641
642=item $boolean = $device->host_unified_memory
643
644Calls C<clGetDeviceInfo> with C<CL_DEVICE_HOST_UNIFIED_MEMORY> and returns the result.
645
646=item $device = $device->parent_device_ext
647
648Calls C<clGetDeviceInfo> with C<CL_DEVICE_PARENT_DEVICE_EXT> and returns the result.
649
650=item @device_partition_property_exts = $device->partition_types_ext
651
652Calls C<clGetDeviceInfo> with C<CL_DEVICE_PARTITION_TYPES_EXT> and returns the result.
653
654=item @device_partition_property_exts = $device->affinity_domains_ext
655
656Calls C<clGetDeviceInfo> with C<CL_DEVICE_AFFINITY_DOMAINS_EXT> and returns the result.
657
658=item $uint = $device->reference_count_ext
659
660Calls C<clGetDeviceInfo> with C<CL_DEVICE_REFERENCE_COUNT_EXT > and returns the result.
661
662=item @device_partition_property_exts = $device->partition_style_ext
663
664Calls C<clGetDeviceInfo> with C<CL_DEVICE_PARTITION_STYLE_EXT> and returns the result.
665
666=for gengetinfo end device
667
355=back 668=back
356 669
357=head2 THE OpenCL::Context CLASS 670=head2 THE OpenCL::Context CLASS
358 671
359=over 4 672=over 4
360 673
361=item $packed_value = $ctx->info ($name)
362
363See C<< $platform->info >> for details.
364
365L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetContextInfo.html>
366
367=item $queue = $ctx->queue ($device, $properties) 674=item $queue = $ctx->queue ($device, $properties)
368 675
369Create a new OpenCL::Queue object from the context and the given device. 676Create a new OpenCL::Queue object from the context and the given device.
370 677
371L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateCommandQueue.html> 678L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateCommandQueue.html>
376 683
377L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateUserEvent.html> 684L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateUserEvent.html>
378 685
379=item $buf = $ctx->buffer ($flags, $len) 686=item $buf = $ctx->buffer ($flags, $len)
380 687
381Creates a new OpenCL::Buffer object with the given flags and octet-size. 688Creates a new OpenCL::Buffer (actually OpenCL::BufferObj) object with the
689given flags and octet-size.
382 690
383L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateBuffer.html> 691L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateBuffer.html>
384 692
385=item $buf = $ctx->buffer_sv ($flags, $data) 693=item $buf = $ctx->buffer_sv ($flags, $data)
386 694
387Creates a new OpenCL::Buffer object and initialise it with the given data values. 695Creates a new OpenCL::Buffer (actually OpenCL::BufferObj) object and
696initialise it with the given data values.
388 697
389=item $img = $ctx->image2d ($flags, $channel_order, $channel_type, $width, $height, $data) 698=item $img = $ctx->image2d ($flags, $channel_order, $channel_type, $width, $height, $row_pitch = 0, $data = undef)
390 699
391Creates a new OpenCL::Image2D object and optionally initialises it with the given data values. 700Creates a new OpenCL::Image2D object and optionally initialises it with
701the given data values.
392 702
393L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateImage2D.html> 703L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateImage2D.html>
394 704
395=item $img = $ctx->image3d ($flags, $channel_order, $channel_type, $width, $height, $depth, $slice_pitch, $data) 705=item $img = $ctx->image3d ($flags, $channel_order, $channel_type, $width, $height, $depth, $row_pitch = 0, $slice_pitch = 0, $data = undef)
396 706
397Creates a new OpenCL::Image3D object and optionally initialises it with the given data values. 707Creates a new OpenCL::Image3D object and optionally initialises it with
708the given data values.
398 709
399L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateImage3D.html> 710L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateImage3D.html>
711
712=item $buffer = $ctx->gl_buffer ($flags, $bufobj)
713
714Creates a new OpenCL::Buffer (actually OpenCL::BufferObj) object that refers to the given
715OpenGL buffer object.
716
717http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateFromGLBuffer.html
718
719=item $ctx->gl_texture2d ($flags, $target, $miplevel, $texture)
720
721Creates a new OpenCL::Image2D object that refers to the given OpenGL
7222D texture object.
723
724http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateFromGLTexture2D.html
725
726=item $ctx->gl_texture3d ($flags, $target, $miplevel, $texture)
727
728Creates a new OpenCL::Image3D object that refers to the given OpenGL
7293D texture object.
730
731http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateFromGLTexture3D.html
732
733=item $ctx->gl_renderbuffer ($flags, $renderbuffer)
734
735Creates a new OpenCL::Image2D object that refers to the given OpenGL
736render buffer.
737
738http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateFromGLRenderbuffer.html
400 739
401=item @formats = $ctx->supported_image_formats ($flags, $image_type) 740=item @formats = $ctx->supported_image_formats ($flags, $image_type)
402 741
403Returns a list of matching image formats - each format is an arrayref with 742Returns a list of matching image formats - each format is an arrayref with
404two values, $channel_order and $channel_type, in it. 743two values, $channel_order and $channel_type, in it.
414=item $program = $ctx->program_with_source ($string) 753=item $program = $ctx->program_with_source ($string)
415 754
416Creates a new OpenCL::Program object from the given source code. 755Creates a new OpenCL::Program object from the given source code.
417 756
418L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateProgramWithSource.html> 757L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateProgramWithSource.html>
758
759=item $packed_value = $ctx->info ($name)
760
761See C<< $platform->info >> for details.
762
763L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetContextInfo.html>
764
765=for gengetinfo begin context
766
767=item $uint = $context->reference_count
768
769Calls C<clGetContextInfo> with C<CL_CONTEXT_REFERENCE_COUNT> and returns the result.
770
771=item @devices = $context->devices
772
773Calls C<clGetContextInfo> with C<CL_CONTEXT_DEVICES> and returns the result.
774
775=item @property_ints = $context->properties
776
777Calls C<clGetContextInfo> with C<CL_CONTEXT_PROPERTIES> and returns the result.
778
779=item $uint = $context->num_devices
780
781Calls C<clGetContextInfo> with C<CL_CONTEXT_NUM_DEVICES> and returns the result.
782
783=for gengetinfo end context
419 784
420=back 785=back
421 786
422=head2 THE OpenCL::Queue CLASS 787=head2 THE OpenCL::Queue CLASS
423 788
437cases (i.e. you use only one queue) it's not necessary to wait for or 802cases (i.e. you use only one queue) it's not necessary to wait for or
438create event objects. 803create event objects.
439 804
440=over 4 805=over 4
441 806
442=item $packed_value = $ctx->info ($name)
443
444See C<< $platform->info >> for details.
445
446L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetCommandQueueInfo.html>
447
448=item $ev = $queue->enqueue_read_buffer ($buffer, $blocking, $offset, $len, $data, $wait_events...) 807=item $ev = $queue->enqueue_read_buffer ($buffer, $blocking, $offset, $len, $data, $wait_events...)
449 808
450Reads data from buffer into the given string. 809Reads data from buffer into the given string.
451 810
452L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReadBuffer.html> 811L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReadBuffer.html>
459 818
460=item $ev = $queue->enqueue_copy_buffer ($src, $dst, $src_offset, $dst_offset, $len, $wait_events...) 819=item $ev = $queue->enqueue_copy_buffer ($src, $dst, $src_offset, $dst_offset, $len, $wait_events...)
461 820
462L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyBuffer.html> 821L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyBuffer.html>
463 822
823=item $ev = $queue->enqueue_read_buffer_rect (OpenCL::Memory buf, cl_bool blocking, $buf_x, $buf_y, $buf_z, $host_x, $host_y, $host_z, $width, $height, $depth, $buf_row_pitch, $buf_slice_pitch, $host_row_pitch, $host_slice_pitch, $data, $wait_events...)
824
825http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReadBufferRect.html
826
827=item $ev = $queue->enqueue_write_buffer_rect (OpenCL::Memory buf, cl_bool blocking, $buf_x, $buf_y, $buf_z, $host_x, $host_y, $host_z, $width, $height, $depth, $buf_row_pitch, $buf_slice_pitch, $host_row_pitch, $host_slice_pitch, $data, $wait_events...)
828
829http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWriteBufferRect.html
830
464=item $ev = $queue->enqueue_read_image ($src, $blocking, $x, $y, $z, $width, $height, $depth, $row_pitch, $slice_pitch, $data, $wait_events...) 831=item $ev = $queue->enqueue_read_image ($src, $blocking, $x, $y, $z, $width, $height, $depth, $row_pitch, $slice_pitch, $data, $wait_events...)
465 832
833L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyBufferRect.html>
834
835=item $ev = $queue->enqueue_copy_buffer_to_image ($src_buffer, $dst_image, $src_offset, $dst_x, $dst_y, $dst_z, $width, $height, $depth, $wait_events...)
836
466L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReadImage.html> 837L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReadImage.html>
467 838
468=item $ev = $queue->enqueue_write_image ($src, $blocking, $x, $y, $z, $width, $height, $depth, $row_pitch, $data, $wait_events...) 839=item $ev = $queue->enqueue_write_image ($src, $blocking, $x, $y, $z, $width, $height, $depth, $row_pitch, $slice_pitch, $data, $wait_events...)
469 840
470L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWriteImage.html> 841L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWriteImage.html>
471 842
843=item $ev = $queue->enqueue_copy_image ($src_image, $dst_image, $src_x, $src_y, $src_z, $dst_x, $dst_y, $dst_z, $width, $height, $depth, $wait_events...)
844
845L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyImage.html>
846
847=item $ev = $queue->enqueue_copy_image_to_buffer ($src_image, $dst_image, $src_x, $src_y, $src_z, $width, $height, $depth, $dst_offset, $wait_events...)
848
849L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyImageToBuffer.html>
850
472=item $ev = $queue->enqueue_copy_buffer_rect ($src, $dst, $src_x, $src_y, $src_z, $dst_x, $dst_y, $dst_z, $width, $height, $depth, $src_row_pitch, $src_slice_pitch, 4dst_row_pitch, $dst_slice_pitch, $wait_event...) 851=item $ev = $queue->enqueue_copy_buffer_rect ($src, $dst, $src_x, $src_y, $src_z, $dst_x, $dst_y, $dst_z, $width, $height, $depth, $src_row_pitch, $src_slice_pitch, $dst_row_pitch, $dst_slice_pitch, $wait_event...)
473 852
474Yeah. 853Yeah.
475 854
476L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyBufferRect.html>
477
478=item $ev = $queue->enqueue_copy_buffer_to_image ($src_buffer, $dst_image, $src_offset, $dst_x, $dst_y, $dst_z, $width, $height, $depth, $wait_events...)
479
480L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyBufferToImage.html>. 855L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyBufferToImage.html>.
481
482=item $ev = $queue->enqueue_copy_image ($src_image, $dst_image, $src_x, $src_y, $src_z, $dst_x, $dst_y, $dst_z, $width, $height, $depth, $wait_events...)
483
484L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyImage.html>
485
486=item $ev = $queue->enqueue_copy_image_to_buffer ($src_image, $dst_image, $src_x, $src_y, $src_z, $width, $height, $depth, $dst_offset, $wait_events...)
487
488L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyImageToBuffer.html>
489 856
490=item $ev = $queue->enqueue_task ($kernel, $wait_events...) 857=item $ev = $queue->enqueue_task ($kernel, $wait_events...)
491 858
492L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueTask.html> 859L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueTask.html>
493 860
507reference to an array of local work sizes, with the same number of 874reference to an array of local work sizes, with the same number of
508elements as @$global_work_size. 875elements as @$global_work_size.
509 876
510L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueNDRangeKernel.html> 877L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueNDRangeKernel.html>
511 878
512=item $ev = $queue->enqueue_marker 879=item $ev = $queue->enqueue_marker ($wait_events...)
513 880
514L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueMarker.html> 881L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueMarker.html>
515 882
883=item $ev = $queue->enqueue_acquire_gl_objects ([object, ...], $wait_events...)
884
885Enqueues a list (an array-ref of OpenCL::Memory objects) to be acquired
886for subsequent OpenCL usage.
887
888L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueAcquireGLObjects.html>
889
890=item $ev = $queue->enqueue_release_gl_objects ([object, ...], $wait_events...)
891
892Enqueues a list (an array-ref of OpenCL::Memory objects) to be released
893for subsequent OpenGL usage.
894
895L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReleaseGLObjects.html>
896
516=item $ev = $queue->enqueue_wait_for_events ($wait_events...) 897=item $ev = $queue->enqueue_wait_for_events ($wait_events...)
517 898
518L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWaitForEvents.html> 899L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWaitForEvents.html>
519 900
520=item $queue->enqueue_barrier 901=item $queue->enqueue_barrier
527 908
528=item $queue->finish 909=item $queue->finish
529 910
530L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clFinish.html> 911L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clFinish.html>
531 912
913=item $packed_value = $queue->info ($name)
914
915See C<< $platform->info >> for details.
916
917L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetCommandQueueInfo.html>
918
919=for gengetinfo begin command_queue
920
921=item $ctx = $command_queue->context
922
923Calls C<clGetCommandQueueInfo> with C<CL_QUEUE_CONTEXT> and returns the result.
924
925=item $device = $command_queue->device
926
927Calls C<clGetCommandQueueInfo> with C<CL_QUEUE_DEVICE> and returns the result.
928
929=item $uint = $command_queue->reference_count
930
931Calls C<clGetCommandQueueInfo> with C<CL_QUEUE_REFERENCE_COUNT> and returns the result.
932
933=item $command_queue_properties = $command_queue->properties
934
935Calls C<clGetCommandQueueInfo> with C<CL_QUEUE_PROPERTIES> and returns the result.
936
937=for gengetinfo end command_queue
938
532=back 939=back
533 940
534=head2 THE OpenCL::Memory CLASS 941=head2 THE OpenCL::Memory CLASS
535 942
536This the superclass of all memory objects - OpenCL::Buffer, OpenCL::Image, 943This the superclass of all memory objects - OpenCL::Buffer, OpenCL::Image,
537OpenCL::Image2D and OpenCL::Image3D. The subclasses of this class 944OpenCL::Image2D and OpenCL::Image3D.
538currently only exist to allow type-checking.
539 945
540=over 4 946=over 4
541 947
542=item $packed_value = $memory->info ($name) 948=item $packed_value = $memory->info ($name)
543 949
544See C<< $platform->info >> for details. 950See C<< $platform->info >> for details.
545 951
546L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetMemObjectInfo.html> 952L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetMemObjectInfo.html>
547 953
954=for gengetinfo begin mem
955
956=item $mem_object_type = $mem->type
957
958Calls C<clGetMemObjectInfo> with C<CL_MEM_TYPE> and returns the result.
959
960=item $mem_flags = $mem->flags
961
962Calls C<clGetMemObjectInfo> with C<CL_MEM_FLAGS> and returns the result.
963
964=item $int = $mem->size
965
966Calls C<clGetMemObjectInfo> with C<CL_MEM_SIZE> and returns the result.
967
968=item $ptr_value = $mem->host_ptr
969
970Calls C<clGetMemObjectInfo> with C<CL_MEM_HOST_PTR> and returns the result.
971
972=item $uint = $mem->map_count
973
974Calls C<clGetMemObjectInfo> with C<CL_MEM_MAP_COUNT> and returns the result.
975
976=item $uint = $mem->reference_count
977
978Calls C<clGetMemObjectInfo> with C<CL_MEM_REFERENCE_COUNT> and returns the result.
979
980=item $ctx = $mem->context
981
982Calls C<clGetMemObjectInfo> with C<CL_MEM_CONTEXT> and returns the result.
983
984=item $mem = $mem->associated_memobject
985
986Calls C<clGetMemObjectInfo> with C<CL_MEM_ASSOCIATED_MEMOBJECT> and returns the result.
987
988=item $int = $mem->offset
989
990Calls C<clGetMemObjectInfo> with C<CL_MEM_OFFSET> and returns the result.
991
992=for gengetinfo end mem
993
994=item ($type, $name) = $mem->gl_object_info
995
996Returns the OpenGL object type (e.g. OpenCL::GL_OBJECT_TEXTURE2D) and the
997object "name" (e.g. the texture name) used to create this memory object.
998
999L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetGLObjectInfo.html>
1000
548=back 1001=back
549 1002
1003=head2 THE OpenCL::Buffer CLASS
1004
1005This is a subclass of OpenCL::Memory, and the superclass of
1006OpenCL::BufferObj. Its purpose is simply to distinguish between buffers
1007and sub-buffers.
1008
1009=head2 THE OpenCL::BufferObj CLASS
1010
1011This is a subclass of OpenCL::Buffer and thus OpenCL::Memory. It exists
1012because one cna create sub buffers of OpenLC::BufferObj objects, but not
1013sub buffers from these sub buffers.
1014
1015=over 4
1016
1017=item $subbuf = $buf_obj->sub_buffer_region ($flags, $origin, $size)
1018
1019Creates an OpenCL::Buffer objects from this buffer and returns it. The
1020C<buffer_create_type> is assumed to be C<CL_BUFFER_CREATE_TYPE_REGION>.
1021
1022L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateSubBuffer.html>
1023
1024=back
1025
1026=head2 THE OpenCL::Image CLASS
1027
1028This is the superclass of all image objects - OpenCL::Image2D and OpenCL::Image3D.
1029
1030=over 4
1031
1032=item $packed_value = $ev->image_info ($name)
1033
1034See C<< $platform->info >> for details.
1035
1036The reason this method is not called C<info> is that there already is an
1037C<< ->info >> method inherited from C<OpenCL::Memory>.
1038
1039L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetImageInfo.html>
1040
1041=for gengetinfo begin image
1042
1043=item $int = $image->element_size
1044
1045Calls C<clGetImageInfo> with C<CL_IMAGE_ELEMENT_SIZE> and returns the result.
1046
1047=item $int = $image->row_pitch
1048
1049Calls C<clGetImageInfo> with C<CL_IMAGE_ROW_PITCH> and returns the result.
1050
1051=item $int = $image->slice_pitch
1052
1053Calls C<clGetImageInfo> with C<CL_IMAGE_SLICE_PITCH> and returns the result.
1054
1055=item $int = $image->width
1056
1057Calls C<clGetImageInfo> with C<CL_IMAGE_WIDTH> and returns the result.
1058
1059=item $int = $image->height
1060
1061Calls C<clGetImageInfo> with C<CL_IMAGE_HEIGHT> and returns the result.
1062
1063=item $int = $image->depth
1064
1065Calls C<clGetImageInfo> with C<CL_IMAGE_DEPTH> and returns the result.
1066
1067=for gengetinfo end image
1068
1069=for gengetinfo begin gl_texture
1070
1071=item $GLenum = $gl_texture->target
1072
1073Calls C<clGetGLTextureInfo> with C<CL_GL_TEXTURE_TARGET> and returns the result.
1074
1075=item $GLint = $gl_texture->gl_mipmap_level
1076
1077Calls C<clGetGLTextureInfo> with C<CL_GL_MIPMAP_LEVEL> and returns the result.
1078
1079=for gengetinfo end gl_texture
1080
1081=back
1082
550=head2 THE OpenCL::Sampler CLASS 1083=head2 THE OpenCL::Sampler CLASS
551 1084
552=over 4 1085=over 4
553 1086
554=item $packed_value = $sampler->info ($name) 1087=item $packed_value = $sampler->info ($name)
555 1088
556See C<< $platform->info >> for details. 1089See C<< $platform->info >> for details.
557 1090
558L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetSamplerInfo.html> 1091L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetSamplerInfo.html>
559 1092
1093=for gengetinfo begin sampler
1094
1095=item $uint = $sampler->reference_count
1096
1097Calls C<clGetSamplerInfo> with C<CL_SAMPLER_REFERENCE_COUNT> and returns the result.
1098
1099=item $ctx = $sampler->context
1100
1101Calls C<clGetSamplerInfo> with C<CL_SAMPLER_CONTEXT> and returns the result.
1102
1103=item $addressing_mode = $sampler->normalized_coords
1104
1105Calls C<clGetSamplerInfo> with C<CL_SAMPLER_NORMALIZED_COORDS> and returns the result.
1106
1107=item $filter_mode = $sampler->addressing_mode
1108
1109Calls C<clGetSamplerInfo> with C<CL_SAMPLER_ADDRESSING_MODE> and returns the result.
1110
1111=item $boolean = $sampler->filter_mode
1112
1113Calls C<clGetSamplerInfo> with C<CL_SAMPLER_FILTER_MODE> and returns the result.
1114
1115=for gengetinfo end sampler
1116
560=back 1117=back
561 1118
562=head2 THE OpenCL::Program CLASS 1119=head2 THE OpenCL::Program CLASS
563 1120
564=over 4 1121=over 4
565
566=item $packed_value = $program->info ($name)
567
568See C<< $platform->info >> for details.
569
570L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetProgramInfo.html>
571 1122
572=item $program->build ($device, $options = "") 1123=item $program->build ($device, $options = "")
573 1124
574Tries to build the program with the givne options. 1125Tries to build the program with the givne options.
575 1126
587Creates an OpenCL::Kernel object out of the named C<__kernel> function in 1138Creates an OpenCL::Kernel object out of the named C<__kernel> function in
588the program. 1139the program.
589 1140
590L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateKernel.html> 1141L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateKernel.html>
591 1142
1143=for gengetinfo begin program_build
1144
1145=item $build_status = $program->build_status ($device)
1146
1147Calls C<clGetProgramBuildInfo> with C<CL_PROGRAM_BUILD_STATUS> and returns the result.
1148
1149=item $string = $program->build_options ($device)
1150
1151Calls C<clGetProgramBuildInfo> with C<CL_PROGRAM_BUILD_OPTIONS> and returns the result.
1152
1153=item $string = $program->build_log ($device)
1154
1155Calls C<clGetProgramBuildInfo> with C<CL_PROGRAM_BUILD_LOG> and returns the result.
1156
1157=for gengetinfo end program_build
1158
1159=item $packed_value = $program->info ($name)
1160
1161See C<< $platform->info >> for details.
1162
1163L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetProgramInfo.html>
1164
1165=for gengetinfo begin program
1166
1167=item $uint = $program->reference_count
1168
1169Calls C<clGetProgramInfo> with C<CL_PROGRAM_REFERENCE_COUNT> and returns the result.
1170
1171=item $ctx = $program->context
1172
1173Calls C<clGetProgramInfo> with C<CL_PROGRAM_CONTEXT> and returns the result.
1174
1175=item $uint = $program->num_devices
1176
1177Calls C<clGetProgramInfo> with C<CL_PROGRAM_NUM_DEVICES> and returns the result.
1178
1179=item @devices = $program->devices
1180
1181Calls C<clGetProgramInfo> with C<CL_PROGRAM_DEVICES> and returns the result.
1182
1183=item $string = $program->source
1184
1185Calls C<clGetProgramInfo> with C<CL_PROGRAM_SOURCE> and returns the result.
1186
1187=item @ints = $program->binary_sizes
1188
1189Calls C<clGetProgramInfo> with C<CL_PROGRAM_BINARY_SIZES> and returns the result.
1190
1191=for gengetinfo end program
1192
1193=item @blobs = $program->binaries
1194
1195Returns a string for the compiled binary for every device associated with
1196the program, empty strings indicate missing programs, and an empty result
1197means no program binaries are available.
1198
1199These "binaries" are often, in fact, informative low-level assembly
1200sources.
1201
1202L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetProgramInfo.html>
1203
592=back 1204=back
593 1205
594=head2 THE OpenCL::Kernel CLASS 1206=head2 THE OpenCL::Kernel CLASS
595 1207
596=over 4 1208=over 4
598=item $packed_value = $kernel->info ($name) 1210=item $packed_value = $kernel->info ($name)
599 1211
600See C<< $platform->info >> for details. 1212See C<< $platform->info >> for details.
601 1213
602L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetKernelInfo.html> 1214L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetKernelInfo.html>
1215
1216=for gengetinfo begin kernel
1217
1218=item $string = $kernel->function_name
1219
1220Calls C<clGetKernelInfo> with C<CL_KERNEL_FUNCTION_NAME> and returns the result.
1221
1222=item $uint = $kernel->num_args
1223
1224Calls C<clGetKernelInfo> with C<CL_KERNEL_NUM_ARGS> and returns the result.
1225
1226=item $uint = $kernel->reference_count
1227
1228Calls C<clGetKernelInfo> with C<CL_KERNEL_REFERENCE_COUNT> and returns the result.
1229
1230=item $ctx = $kernel->context
1231
1232Calls C<clGetKernelInfo> with C<CL_KERNEL_CONTEXT> and returns the result.
1233
1234=item $program = $kernel->program
1235
1236Calls C<clGetKernelInfo> with C<CL_KERNEL_PROGRAM> and returns the result.
1237
1238=for gengetinfo end kernel
1239
1240=item $packed_value = $kernel->work_group_info ($device, $name)
1241
1242See C<< $platform->info >> for details.
1243
1244The reason this method is not called C<info> is that there already is an
1245C<< ->info >> method.
1246
1247L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetKernelWorkGroupInfo.html>
1248
1249=for gengetinfo begin kernel_work_group
1250
1251=item $int = $kernel->work_group_size ($device)
1252
1253Calls C<clGetKernelWorkGroupInfo> with C<CL_KERNEL_WORK_GROUP_SIZE> and returns the result.
1254
1255=item @ints = $kernel->compile_work_group_size ($device)
1256
1257Calls C<clGetKernelWorkGroupInfo> with C<CL_KERNEL_COMPILE_WORK_GROUP_SIZE> and returns the result.
1258
1259=item $ulong = $kernel->local_mem_size ($device)
1260
1261Calls C<clGetKernelWorkGroupInfo> with C<CL_KERNEL_LOCAL_MEM_SIZE> and returns the result.
1262
1263=item $int = $kernel->preferred_work_group_size_multiple ($device)
1264
1265Calls C<clGetKernelWorkGroupInfo> with C<CL_KERNEL_PREFERRED_WORK_GROUP_SIZE_MULTIPLE> and returns the result.
1266
1267=item $ulong = $kernel->private_mem_size ($device)
1268
1269Calls C<clGetKernelWorkGroupInfo> with C<CL_KERNEL_PRIVATE_MEM_SIZE> and returns the result.
1270
1271=for gengetinfo end kernel_work_group
603 1272
604=item $kernel->set_TYPE ($index, $value) 1273=item $kernel->set_TYPE ($index, $value)
605 1274
606This is a family of methods to set the kernel argument with the number C<$index> to the give C<$value>. 1275This is a family of methods to set the kernel argument with the number C<$index> to the give C<$value>.
607 1276
623This is the superclass for all event objects (including OpenCL::UserEvent 1292This is the superclass for all event objects (including OpenCL::UserEvent
624objects). 1293objects).
625 1294
626=over 4 1295=over 4
627 1296
1297=item $ev->wait
1298
1299Waits for the event to complete.
1300
1301L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clWaitForEvents.html>
1302
628=item $packed_value = $ev->info ($name) 1303=item $packed_value = $ev->info ($name)
629 1304
630See C<< $platform->info >> for details. 1305See C<< $platform->info >> for details.
631 1306
632L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetEventInfo.html> 1307L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetEventInfo.html>
633 1308
634=item $ev->wait 1309=for gengetinfo begin event
635 1310
636Waits for the event to complete. 1311=item $queue = $event->command_queue
637 1312
1313Calls C<clGetEventInfo> with C<CL_EVENT_COMMAND_QUEUE> and returns the result.
1314
1315=item $command_type = $event->command_type
1316
1317Calls C<clGetEventInfo> with C<CL_EVENT_COMMAND_TYPE> and returns the result.
1318
1319=item $uint = $event->reference_count
1320
1321Calls C<clGetEventInfo> with C<CL_EVENT_REFERENCE_COUNT> and returns the result.
1322
1323=item $uint = $event->command_execution_status
1324
1325Calls C<clGetEventInfo> with C<CL_EVENT_COMMAND_EXECUTION_STATUS> and returns the result.
1326
1327=item $ctx = $event->context
1328
1329Calls C<clGetEventInfo> with C<CL_EVENT_CONTEXT> and returns the result.
1330
1331=for gengetinfo end event
1332
1333=item $packed_value = $ev->profiling_info ($name)
1334
1335See C<< $platform->info >> for details.
1336
1337The reason this method is not called C<info> is that there already is an
1338C<< ->info >> method.
1339
638L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clWaitForEvents.html> 1340L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetProfilingInfo.html>
1341
1342=for gengetinfo begin profiling
1343
1344=item $ulong = $event->profiling_command_queued
1345
1346Calls C<clGetEventProfilingInfo> with C<CL_PROFILING_COMMAND_QUEUED> and returns the result.
1347
1348=item $ulong = $event->profiling_command_submit
1349
1350Calls C<clGetEventProfilingInfo> with C<CL_PROFILING_COMMAND_SUBMIT> and returns the result.
1351
1352=item $ulong = $event->profiling_command_start
1353
1354Calls C<clGetEventProfilingInfo> with C<CL_PROFILING_COMMAND_START> and returns the result.
1355
1356=item $ulong = $event->profiling_command_end
1357
1358Calls C<clGetEventProfilingInfo> with C<CL_PROFILING_COMMAND_END> and returns the result.
1359
1360=for gengetinfo end profiling
639 1361
640=back 1362=back
641 1363
642=head2 THE OpenCL::UserEvent CLASS 1364=head2 THE OpenCL::UserEvent CLASS
643 1365
656package OpenCL; 1378package OpenCL;
657 1379
658use common::sense; 1380use common::sense;
659 1381
660BEGIN { 1382BEGIN {
661 our $VERSION = '0.14'; 1383 our $VERSION = '0.92';
662 1384
663 require XSLoader; 1385 require XSLoader;
664 XSLoader::load (__PACKAGE__, $VERSION); 1386 XSLoader::load (__PACKAGE__, $VERSION);
665 1387
666 @OpenCL::Buffer::ISA = 1388 @OpenCL::Buffer::ISA =
667 @OpenCL::Image::ISA = OpenCL::Memory::; 1389 @OpenCL::Image::ISA = OpenCL::Memory::;
668 1390
1391 @OpenCL::BufferObj::ISA = OpenCL::Buffer::;
1392
669 @OpenCL::Image2D::ISA = 1393 @OpenCL::Image2D::ISA =
670 @OpenCL::Image3D::ISA = OpenCL::Image::; 1394 @OpenCL::Image3D::ISA = OpenCL::Image::;
671 1395
672 @OpenCL::UserEvent::ISA = OpenCL::Event::; 1396 @OpenCL::UserEvent::ISA = OpenCL::Event::;
673} 1397}
674 1398
6751; 13991;
676 1400
677=head1 AUTHOR 1401=head1 AUTHOR

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