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Revision 1.15 by root, Thu Nov 17 03:05:56 2011 UTC vs.
Revision 1.35 by root, Thu Apr 19 13:18:31 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 array) and OpenCL::Image objects (think 2d or 3d 33memory areas, think arrays or structs) and OpenCL::Image objects (think 2d
34array) 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.
38 38
39OpenCL::Queue objects - command queues, which allow you to submit memory 39OpenCL::Queue objects - command queues, which allow you to submit memory
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
62Here's a tutorial from AMD (very AMD-centric, too), not sure how useful it
63is, but at least it's free of charge:
64
65 http://developer.amd.com/zones/OpenCLZone/courses/Documents/Introduction_to_OpenCL_Programming%20Training_Guide%20%28201005%29.pdf
66
67And here's NVIDIA's OpenCL Best Practises Guide:
68
69 http://developer.download.nvidia.com/compute/cuda/3_2/toolkit/docs/OpenCL_Best_Practices_Guide.pdf
70
57=head1 BASIC WORKFLOW 71=head1 BASIC WORKFLOW
58 72
59To 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
60examples below for actual code, this is just a high-level description): 74examples below for actual code, this is just a high-level description):
61 75
87 101
88Best 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
89system. 103system.
90 104
91 for my $platform (OpenCL::platforms) { 105 for my $platform (OpenCL::platforms) {
92 printf "platform: %s\n", $platform->info (OpenCL::PLATFORM_NAME); 106 printf "platform: %s\n", $platform->name;
93 printf "extensions: %s\n", $platform->info (OpenCL::PLATFORM_EXTENSIONS); 107 printf "extensions: %s\n", $platform->extensions;
94 for my $device ($platform->devices) { 108 for my $device ($platform->devices) {
95 printf "+ device: %s\n", $device->info (OpenCL::DEVICE_NAME); 109 printf "+ device: %s\n", $device->name;
96 my $ctx = $device->context; 110 my $ctx = $platform->context (undef, [$device]);
97 # do stuff 111 # do stuff
98 } 112 }
99 } 113 }
100 114
101=head2 Get a useful context and a command queue. 115=head2 Get a useful context and a command queue.
135 149
136=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
137functions. 151functions.
138 152
139 my $src = ' 153 my $src = '
140 __kernel void 154 kernel void
141 squareit (__global float *input, __global float *output) 155 squareit (global float *input, global float *output)
142 { 156 {
143 $id = get_global_id (0); 157 $id = get_global_id (0);
144 output [id] = input [id] * input [id]; 158 output [id] = input [id] * input [id];
145 } 159 }
146 '; 160 ';
147 161
148 my $prog = $ctx->program_with_source ($src); 162 my $prog = $ctx->program_with_source ($src);
149 163
150 # 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
151 eval { $prog->build ($dev); 1 } 165 eval { $prog->build ($dev); 1 }
152 or die $prog->build_info ($dev, OpenCL::PROGRAM_BUILD_LOG); 166 or die $prog->build_log;
153 167
154 my $kernel = $prog->kernel ("squareit"); 168 my $kernel = $prog->kernel ("squareit");
155 169
156=head2 Create some input and output float buffers, then call the 170=head2 Create some input and output float buffers, then call the
157'squareit' kernel on them. 171'squareit' kernel on them.
212 226
213=item * Object lifetime managament is automatic - there is no need 227=item * Object lifetime managament is automatic - there is no need
214to free objects explicitly (C<clReleaseXXX>), the release function 228to free objects explicitly (C<clReleaseXXX>), the release function
215is called automatically once all Perl references to it go away. 229is called automatically once all Perl references to it go away.
216 230
217=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
218while this module uses underscores as word separator and often leaves out 233uses underscores as word separator and often leaves out prefixes
219prefixes (C<< $platform->info >>). 234(C<OpenCL::platforms>, C<< $platform->info >>).
220 235
221=item * OpenCL often specifies fixed vector function arguments as short 236=item * OpenCL often specifies fixed vector function arguments as short
222arrays (C<$origin[3]>), while this module explicitly expects the 237arrays (C<size_t origin[3]>), while this module explicitly expects the
223components as separate arguments- 238components as separate arguments (C<$orig_x, $orig_y, $orig_z>) in
239function calls.
224 240
225=item * Structures are often specified with their components, and returned 241=item * Structures are often specified by flattening out their components
226as arrayrefs. 242as with short vectors, and returned as arrayrefs.
227
228=item * Where possible, one of the pitch values is calculated from the
229perl scalar length and need not be specified.
230 243
231=item * When enqueuing commands, the wait list is specified by adding 244=item * When enqueuing commands, the wait list is specified by adding
232extra arguments to the function - anywhere a C<$wait_events...> argument 245extra arguments to the function - anywhere a C<$wait_events...> argument
233is documented this can be any number of event objects. 246is documented this can be any number of event objects.
234 247
273 286
274Comverts an error value into a human readable string. 287Comverts an error value into a human readable string.
275 288
276=item $str = OpenCL::enum2str $enum 289=item $str = OpenCL::enum2str $enum
277 290
278Converts most enum values (inof parameter names, image format constants, 291Converts most enum values (of parameter names, image format constants,
279object types, addressing and filter modes, command types etc.) into a 292object types, addressing and filter modes, command types etc.) into a
280human readbale string. When confronted with some random integer it can be 293human readable string. When confronted with some random integer it can be
281very helpful to pass it through this function to maybe get some readable 294very helpful to pass it through this function to maybe get some readable
282string out of it. 295string out of it.
283 296
284=item @platforms = OpenCL::platforms 297=item @platforms = OpenCL::platforms
285 298
303 316
304=head2 THE OpenCL::Platform CLASS 317=head2 THE OpenCL::Platform CLASS
305 318
306=over 4 319=over 4
307 320
308=item $packed_value = $platform->info ($name)
309
310Calls C<clGetPlatformInfo> and returns the packed, raw value - for
311strings, this will be the string, for other values you probably need to
312use the correct C<unpack>. This might get improved in the future. Hopefully.
313
314L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetPlatformInfo.html>
315
316=item @devices = $platform->devices ($type = OpenCL::DEVICE_TYPE_ALL) 321=item @devices = $platform->devices ($type = OpenCL::DEVICE_TYPE_ALL)
317 322
318Returns a list of matching OpenCL::Device objects. 323Returns a list of matching OpenCL::Device objects.
319 324
320=item $ctx = $platform->context_from_type ($properties, $type = OpenCL::DEVICE_TYPE_DEFAULT, $notify = undef) 325=item $ctx = $platform->context_from_type ($properties, $type = OpenCL::DEVICE_TYPE_DEFAULT, $notify = undef)
321 326
322Tries to create a context. Never worked for me, and you need devices explitly anyway. 327Tries to create a context. Never worked for me, and you need devices explicitly anyway.
323 328
324L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateContextFromType.html> 329L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateContextFromType.html>
325 330
326=item $ctx = $device->context ($properties = undef, @$devices, $notify = undef) 331=item $ctx = $platform->context ($properties = undef, @$devices, $notify = undef)
327 332
328Create a new OpenCL::Context object using the given device object(s)- a 333Create a new OpenCL::Context object using the given device object(s)- a
329CL_CONTEXT_PLATFORM property is supplied automatically. 334CL_CONTEXT_PLATFORM property is supplied automatically.
330 335
331L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateContext.html> 336L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateContext.html>
332 337
338=item $packed_value = $platform->info ($name)
339
340Calls C<clGetPlatformInfo> and returns the packed, raw value - for
341strings, this will be the string (possibly including terminating \0), for
342other values you probably need to use the correct C<unpack>.
343
344It's best to avoid this method and use one of the following convenience
345wrappers.
346
347L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetPlatformInfo.html>
348
349=for gengetinfo begin platform
350
351=item $string = $platform->profile
352
353Calls C<clGetPlatformInfo> with C<CL_PLATFORM_PROFILE> and returns the result.
354
355=item $string = $platform->version
356
357Calls C<clGetPlatformInfo> with C<CL_PLATFORM_VERSION> and returns the result.
358
359=item $string = $platform->name
360
361Calls C<clGetPlatformInfo> with C<CL_PLATFORM_NAME> and returns the result.
362
363=item $string = $platform->vendor
364
365Calls C<clGetPlatformInfo> with C<CL_PLATFORM_VENDOR> and returns the result.
366
367=item $string = $platform->extensions
368
369Calls C<clGetPlatformInfo> with C<CL_PLATFORM_EXTENSIONS> and returns the result.
370
371=for gengetinfo end platform
372
333=back 373=back
334 374
335=head2 THE OpenCL::Device CLASS 375=head2 THE OpenCL::Device CLASS
336 376
337=over 4 377=over 4
340 380
341See C<< $platform->info >> for details. 381See C<< $platform->info >> for details.
342 382
343L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetDeviceInfo.html> 383L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetDeviceInfo.html>
344 384
385=for gengetinfo begin device
386
387=item $device_type = $device->type
388
389Calls C<clGetDeviceInfo> with C<CL_DEVICE_TYPE> and returns the result.
390
391=item $uint = $device->vendor_id
392
393Calls C<clGetDeviceInfo> with C<CL_DEVICE_VENDOR_ID> and returns the result.
394
395=item $uint = $device->max_compute_units
396
397Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_COMPUTE_UNITS> and returns the result.
398
399=item $uint = $device->max_work_item_dimensions
400
401Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_WORK_ITEM_DIMENSIONS> and returns the result.
402
403=item $int = $device->max_work_group_size
404
405Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_WORK_GROUP_SIZE> and returns the result.
406
407=item @ints = $device->max_work_item_sizes
408
409Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_WORK_ITEM_SIZES> and returns the result.
410
411=item $uint = $device->preferred_vector_width_char
412
413Calls C<clGetDeviceInfo> with C<CL_DEVICE_PREFERRED_VECTOR_WIDTH_CHAR> and returns the result.
414
415=item $uint = $device->preferred_vector_width_short
416
417Calls C<clGetDeviceInfo> with C<CL_DEVICE_PREFERRED_VECTOR_WIDTH_SHORT> and returns the result.
418
419=item $uint = $device->preferred_vector_width_int
420
421Calls C<clGetDeviceInfo> with C<CL_DEVICE_PREFERRED_VECTOR_WIDTH_INT> and returns the result.
422
423=item $uint = $device->preferred_vector_width_long
424
425Calls C<clGetDeviceInfo> with C<CL_DEVICE_PREFERRED_VECTOR_WIDTH_LONG> and returns the result.
426
427=item $uint = $device->preferred_vector_width_float
428
429Calls C<clGetDeviceInfo> with C<CL_DEVICE_PREFERRED_VECTOR_WIDTH_FLOAT> and returns the result.
430
431=item $uint = $device->preferred_vector_width_double
432
433Calls C<clGetDeviceInfo> with C<CL_DEVICE_PREFERRED_VECTOR_WIDTH_DOUBLE> and returns the result.
434
435=item $uint = $device->max_clock_frequency
436
437Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_CLOCK_FREQUENCY> and returns the result.
438
439=item $bitfield = $device->address_bits
440
441Calls C<clGetDeviceInfo> with C<CL_DEVICE_ADDRESS_BITS> and returns the result.
442
443=item $uint = $device->max_read_image_args
444
445Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_READ_IMAGE_ARGS> and returns the result.
446
447=item $uint = $device->max_write_image_args
448
449Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_WRITE_IMAGE_ARGS> and returns the result.
450
451=item $ulong = $device->max_mem_alloc_size
452
453Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_MEM_ALLOC_SIZE> and returns the result.
454
455=item $int = $device->image2d_max_width
456
457Calls C<clGetDeviceInfo> with C<CL_DEVICE_IMAGE2D_MAX_WIDTH> and returns the result.
458
459=item $int = $device->image2d_max_height
460
461Calls C<clGetDeviceInfo> with C<CL_DEVICE_IMAGE2D_MAX_HEIGHT> and returns the result.
462
463=item $int = $device->image3d_max_width
464
465Calls C<clGetDeviceInfo> with C<CL_DEVICE_IMAGE3D_MAX_WIDTH> and returns the result.
466
467=item $int = $device->image3d_max_height
468
469Calls C<clGetDeviceInfo> with C<CL_DEVICE_IMAGE3D_MAX_HEIGHT> and returns the result.
470
471=item $int = $device->image3d_max_depth
472
473Calls C<clGetDeviceInfo> with C<CL_DEVICE_IMAGE3D_MAX_DEPTH> and returns the result.
474
475=item $uint = $device->image_support
476
477Calls C<clGetDeviceInfo> with C<CL_DEVICE_IMAGE_SUPPORT> and returns the result.
478
479=item $int = $device->max_parameter_size
480
481Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_PARAMETER_SIZE> and returns the result.
482
483=item $uint = $device->max_samplers
484
485Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_SAMPLERS> and returns the result.
486
487=item $uint = $device->mem_base_addr_align
488
489Calls C<clGetDeviceInfo> with C<CL_DEVICE_MEM_BASE_ADDR_ALIGN> and returns the result.
490
491=item $uint = $device->min_data_type_align_size
492
493Calls C<clGetDeviceInfo> with C<CL_DEVICE_MIN_DATA_TYPE_ALIGN_SIZE> and returns the result.
494
495=item $device_fp_config = $device->single_fp_config
496
497Calls C<clGetDeviceInfo> with C<CL_DEVICE_SINGLE_FP_CONFIG> and returns the result.
498
499=item $device_mem_cache_type = $device->global_mem_cache_type
500
501Calls C<clGetDeviceInfo> with C<CL_DEVICE_GLOBAL_MEM_CACHE_TYPE> and returns the result.
502
503=item $uint = $device->global_mem_cacheline_size
504
505Calls C<clGetDeviceInfo> with C<CL_DEVICE_GLOBAL_MEM_CACHELINE_SIZE> and returns the result.
506
507=item $ulong = $device->global_mem_cache_size
508
509Calls C<clGetDeviceInfo> with C<CL_DEVICE_GLOBAL_MEM_CACHE_SIZE> and returns the result.
510
511=item $ulong = $device->global_mem_size
512
513Calls C<clGetDeviceInfo> with C<CL_DEVICE_GLOBAL_MEM_SIZE> and returns the result.
514
515=item $ulong = $device->max_constant_buffer_size
516
517Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_CONSTANT_BUFFER_SIZE> and returns the result.
518
519=item $uint = $device->max_constant_args
520
521Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_CONSTANT_ARGS> and returns the result.
522
523=item $device_local_mem_type = $device->local_mem_type
524
525Calls C<clGetDeviceInfo> with C<CL_DEVICE_LOCAL_MEM_TYPE> and returns the result.
526
527=item $ulong = $device->local_mem_size
528
529Calls C<clGetDeviceInfo> with C<CL_DEVICE_LOCAL_MEM_SIZE> and returns the result.
530
531=item $boolean = $device->error_correction_support
532
533Calls C<clGetDeviceInfo> with C<CL_DEVICE_ERROR_CORRECTION_SUPPORT> and returns the result.
534
535=item $int = $device->profiling_timer_resolution
536
537Calls C<clGetDeviceInfo> with C<CL_DEVICE_PROFILING_TIMER_RESOLUTION> and returns the result.
538
539=item $boolean = $device->endian_little
540
541Calls C<clGetDeviceInfo> with C<CL_DEVICE_ENDIAN_LITTLE> and returns the result.
542
543=item $boolean = $device->available
544
545Calls C<clGetDeviceInfo> with C<CL_DEVICE_AVAILABLE> and returns the result.
546
547=item $boolean = $device->compiler_available
548
549Calls C<clGetDeviceInfo> with C<CL_DEVICE_COMPILER_AVAILABLE> and returns the result.
550
551=item $device_exec_capabilities = $device->execution_capabilities
552
553Calls C<clGetDeviceInfo> with C<CL_DEVICE_EXECUTION_CAPABILITIES> and returns the result.
554
555=item $command_queue_properties = $device->properties
556
557Calls C<clGetDeviceInfo> with C<CL_DEVICE_QUEUE_PROPERTIES> and returns the result.
558
559=item $ = $device->platform
560
561Calls C<clGetDeviceInfo> with C<CL_DEVICE_PLATFORM> and returns the result.
562
563=item $string = $device->name
564
565Calls C<clGetDeviceInfo> with C<CL_DEVICE_NAME> and returns the result.
566
567=item $string = $device->vendor
568
569Calls C<clGetDeviceInfo> with C<CL_DEVICE_VENDOR> and returns the result.
570
571=item $string = $device->driver_version
572
573Calls C<clGetDeviceInfo> with C<CL_DRIVER_VERSION> and returns the result.
574
575=item $string = $device->profile
576
577Calls C<clGetDeviceInfo> with C<CL_DEVICE_PROFILE> and returns the result.
578
579=item $string = $device->version
580
581Calls C<clGetDeviceInfo> with C<CL_DEVICE_VERSION> and returns the result.
582
583=item $string = $device->extensions
584
585Calls C<clGetDeviceInfo> with C<CL_DEVICE_EXTENSIONS> and returns the result.
586
587=item $uint = $device->preferred_vector_width_half
588
589Calls C<clGetDeviceInfo> with C<CL_DEVICE_PREFERRED_VECTOR_WIDTH_HALF> and returns the result.
590
591=item $uint = $device->native_vector_width_char
592
593Calls C<clGetDeviceInfo> with C<CL_DEVICE_NATIVE_VECTOR_WIDTH_CHAR> and returns the result.
594
595=item $uint = $device->native_vector_width_short
596
597Calls C<clGetDeviceInfo> with C<CL_DEVICE_NATIVE_VECTOR_WIDTH_SHORT> and returns the result.
598
599=item $uint = $device->native_vector_width_int
600
601Calls C<clGetDeviceInfo> with C<CL_DEVICE_NATIVE_VECTOR_WIDTH_INT> and returns the result.
602
603=item $uint = $device->native_vector_width_long
604
605Calls C<clGetDeviceInfo> with C<CL_DEVICE_NATIVE_VECTOR_WIDTH_LONG> and returns the result.
606
607=item $uint = $device->native_vector_width_float
608
609Calls C<clGetDeviceInfo> with C<CL_DEVICE_NATIVE_VECTOR_WIDTH_FLOAT> and returns the result.
610
611=item $uint = $device->native_vector_width_double
612
613Calls C<clGetDeviceInfo> with C<CL_DEVICE_NATIVE_VECTOR_WIDTH_DOUBLE> and returns the result.
614
615=item $uint = $device->native_vector_width_half
616
617Calls C<clGetDeviceInfo> with C<CL_DEVICE_NATIVE_VECTOR_WIDTH_HALF> and returns the result.
618
619=item $device_fp_config = $device->double_fp_config
620
621Calls C<clGetDeviceInfo> with C<CL_DEVICE_DOUBLE_FP_CONFIG> and returns the result.
622
623=item $device_fp_config = $device->half_fp_config
624
625Calls C<clGetDeviceInfo> with C<CL_DEVICE_HALF_FP_CONFIG> and returns the result.
626
627=item $boolean = $device->host_unified_memory
628
629Calls C<clGetDeviceInfo> with C<CL_DEVICE_HOST_UNIFIED_MEMORY> and returns the result.
630
631=item $device = $device->parent_device_ext
632
633Calls C<clGetDeviceInfo> with C<CL_DEVICE_PARENT_DEVICE_EXT> and returns the result.
634
635=item @device_partition_property_exts = $device->partition_types_ext
636
637Calls C<clGetDeviceInfo> with C<CL_DEVICE_PARTITION_TYPES_EXT> and returns the result.
638
639=item @device_partition_property_exts = $device->affinity_domains_ext
640
641Calls C<clGetDeviceInfo> with C<CL_DEVICE_AFFINITY_DOMAINS_EXT> and returns the result.
642
643=item $uint = $device->reference_count_ext
644
645Calls C<clGetDeviceInfo> with C<CL_DEVICE_REFERENCE_COUNT_EXT > and returns the result.
646
647=item @device_partition_property_exts = $device->partition_style_ext
648
649Calls C<clGetDeviceInfo> with C<CL_DEVICE_PARTITION_STYLE_EXT> and returns the result.
650
651=for gengetinfo end device
652
345=back 653=back
346 654
347=head2 THE OpenCL::Context CLASS 655=head2 THE OpenCL::Context CLASS
348 656
349=over 4 657=over 4
350 658
351=item $packed_value = $ctx->info ($name)
352
353See C<< $platform->info >> for details.
354
355L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetContextInfo.html>
356
357=item $queue = $ctx->queue ($device, $properties) 659=item $queue = $ctx->queue ($device, $properties)
358 660
359Create a new OpenCL::Queue object from the context and the given device. 661Create a new OpenCL::Queue object from the context and the given device.
360 662
361L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateCommandQueue.html> 663L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateCommandQueue.html>
366 668
367L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateUserEvent.html> 669L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateUserEvent.html>
368 670
369=item $buf = $ctx->buffer ($flags, $len) 671=item $buf = $ctx->buffer ($flags, $len)
370 672
371Creates a new OpenCL::Buffer object with the given flags and octet-size. 673Creates a new OpenCL::Buffer (actually OpenCL::BufferObj) object with the
674given flags and octet-size.
372 675
373L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateBuffer.html> 676L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateBuffer.html>
374 677
375=item $buf = $ctx->buffer_sv ($flags, $data) 678=item $buf = $ctx->buffer_sv ($flags, $data)
376 679
377Creates a new OpenCL::Buffer object and initialise it with the given data values. 680Creates a new OpenCL::Buffer (actually OpenCL::BufferObj) object and
681initialise it with the given data values.
378 682
379=item $img = $ctx->image2d ($flags, $channel_order, $channel_type, $width, $height, $data) 683=item $img = $ctx->image2d ($flags, $channel_order, $channel_type, $width, $height, $row_pitch = 0, $data = undef)
380 684
381Creates a new OpenCL::Image2D object and optionally initialises it with the given data values. 685Creates a new OpenCL::Image2D object and optionally initialises it with
686the given data values.
382 687
383L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateImage2D.html> 688L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateImage2D.html>
384 689
385=item $img = $ctx->image3d ($flags, $channel_order, $channel_type, $width, $height, $depth, $slice_pitch, $data) 690=item $img = $ctx->image3d ($flags, $channel_order, $channel_type, $width, $height, $depth, $row_pitch = 0, $slice_pitch = 0, $data = undef)
386 691
387Creates a new OpenCL::Image3D object and optionally initialises it with the given data values. 692Creates a new OpenCL::Image3D object and optionally initialises it with
693the given data values.
388 694
389L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateImage3D.html> 695L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateImage3D.html>
696
697=item $buffer = $ctx->gl_buffer ($flags, $bufobj)
698
699Creates a new OpenCL::Buffer (actually OpenCL::BufferObj) object that refers to the given
700OpenGL buffer object.
701
702http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateFromGLBuffer.html
703
704=item $ctx->gl_texture2d ($flags, $target, $miplevel, $texture)
705
706Creates a new OpenCL::Image2D object that refers to the given OpenGL
7072D texture object.
708
709http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateFromGLTexture2D.html
710
711=item $ctx->gl_texture3d ($flags, $target, $miplevel, $texture)
712
713Creates a new OpenCL::Image3D object that refers to the given OpenGL
7143D texture object.
715
716http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateFromGLTexture3D.html
717
718=item $ctx->gl_renderbuffer ($flags, $renderbuffer)
719
720Creates a new OpenCL::Image2D object that refers to the given OpenGL
721render buffer.
722
723http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateFromGLRenderbuffer.html
390 724
391=item @formats = $ctx->supported_image_formats ($flags, $image_type) 725=item @formats = $ctx->supported_image_formats ($flags, $image_type)
392 726
393Returns a list of matching image formats - each format is an arrayref with 727Returns a list of matching image formats - each format is an arrayref with
394two values, $channel_order and $channel_type, in it. 728two values, $channel_order and $channel_type, in it.
404=item $program = $ctx->program_with_source ($string) 738=item $program = $ctx->program_with_source ($string)
405 739
406Creates a new OpenCL::Program object from the given source code. 740Creates a new OpenCL::Program object from the given source code.
407 741
408L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateProgramWithSource.html> 742L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateProgramWithSource.html>
743
744=item $packed_value = $ctx->info ($name)
745
746See C<< $platform->info >> for details.
747
748L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetContextInfo.html>
749
750=for gengetinfo begin context
751
752=item $uint = $context->reference_count
753
754Calls C<clGetContextInfo> with C<CL_CONTEXT_REFERENCE_COUNT> and returns the result.
755
756=item @devices = $context->devices
757
758Calls C<clGetContextInfo> with C<CL_CONTEXT_DEVICES> and returns the result.
759
760=item @property_ints = $context->properties
761
762Calls C<clGetContextInfo> with C<CL_CONTEXT_PROPERTIES> and returns the result.
763
764=item $uint = $context->num_devices
765
766Calls C<clGetContextInfo> with C<CL_CONTEXT_NUM_DEVICES> and returns the result.
767
768=for gengetinfo end context
409 769
410=back 770=back
411 771
412=head2 THE OpenCL::Queue CLASS 772=head2 THE OpenCL::Queue CLASS
413 773
427cases (i.e. you use only one queue) it's not necessary to wait for or 787cases (i.e. you use only one queue) it's not necessary to wait for or
428create event objects. 788create event objects.
429 789
430=over 4 790=over 4
431 791
432=item $packed_value = $ctx->info ($name)
433
434See C<< $platform->info >> for details.
435
436L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetCommandQueueInfo.html>
437
438=item $ev = $queue->enqueue_read_buffer ($buffer, $blocking, $offset, $len, $data, $wait_events...) 792=item $ev = $queue->enqueue_read_buffer ($buffer, $blocking, $offset, $len, $data, $wait_events...)
439 793
440Reads data from buffer into the given string. 794Reads data from buffer into the given string.
441 795
442L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReadBuffer.html> 796L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReadBuffer.html>
449 803
450=item $ev = $queue->enqueue_copy_buffer ($src, $dst, $src_offset, $dst_offset, $len, $wait_events...) 804=item $ev = $queue->enqueue_copy_buffer ($src, $dst, $src_offset, $dst_offset, $len, $wait_events...)
451 805
452L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyBuffer.html> 806L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyBuffer.html>
453 807
808=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...)
809
810http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReadBufferRect.html
811
812=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...)
813
814http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWriteBufferRect.html
815
454=item $ev = $queue->enqueue_read_image ($src, $blocking, $x, $y, $z, $width, $height, $depth, $row_pitch, $slice_pitch, $data, $wait_events...) 816=item $ev = $queue->enqueue_read_image ($src, $blocking, $x, $y, $z, $width, $height, $depth, $row_pitch, $slice_pitch, $data, $wait_events...)
455 817
818L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyBufferRect.html>
819
820=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...)
821
456L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReadImage.html> 822L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReadImage.html>
457 823
458=item $ev = $queue->enqueue_write_image ($src, $blocking, $x, $y, $z, $width, $height, $depth, $row_pitch, $data, $wait_events...) 824=item $ev = $queue->enqueue_write_image ($src, $blocking, $x, $y, $z, $width, $height, $depth, $row_pitch, $slice_pitch, $data, $wait_events...)
459 825
460L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWriteImage.html> 826L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWriteImage.html>
461 827
828=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...)
829
830L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyImage.html>
831
832=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...)
833
834L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyImageToBuffer.html>
835
462=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...) 836=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...)
463 837
464Yeah. 838Yeah.
465 839
466L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyBufferRect.html>
467
468=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...)
469
470L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyBufferToImage.html>. 840L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyBufferToImage.html>.
471
472=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...)
473
474L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyImage.html>
475
476=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...)
477
478L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyImageToBuffer.html>
479 841
480=item $ev = $queue->enqueue_task ($kernel, $wait_events...) 842=item $ev = $queue->enqueue_task ($kernel, $wait_events...)
481 843
482L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueTask.html> 844L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueTask.html>
483 845
497reference to an array of local work sizes, with the same number of 859reference to an array of local work sizes, with the same number of
498elements as @$global_work_size. 860elements as @$global_work_size.
499 861
500L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueNDRangeKernel.html> 862L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueNDRangeKernel.html>
501 863
502=item $ev = $queue->enqueue_marker 864=item $ev = $queue->enqueue_marker ($wait_events...)
503 865
504L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueMarker.html> 866L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueMarker.html>
505 867
868=item $ev = $queue->enqueue_acquire_gl_objects ([object, ...], $wait_events...)
869
870Enqueues a list (an array-ref of OpenCL::Memory objects) to be acquired
871for subsequent OpenCL usage.
872
873L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueAcquireGLObjects.html>
874
875=item $ev = $queue->enqueue_release_gl_objects ([object, ...], $wait_events...)
876
877Enqueues a list (an array-ref of OpenCL::Memory objects) to be released
878for subsequent OpenGL usage.
879
880L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReleaseGLObjects.html>
881
506=item $ev = $queue->enqueue_wait_for_events ($wait_events...) 882=item $ev = $queue->enqueue_wait_for_events ($wait_events...)
507 883
508L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWaitForEvents.html> 884L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWaitForEvents.html>
509 885
510=item $queue->enqueue_barrier 886=item $queue->enqueue_barrier
517 893
518=item $queue->finish 894=item $queue->finish
519 895
520L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clFinish.html> 896L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clFinish.html>
521 897
898=item $packed_value = $queue->info ($name)
899
900See C<< $platform->info >> for details.
901
902L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetCommandQueueInfo.html>
903
904=for gengetinfo begin command_queue
905
906=item $ctx = $command_queue->context
907
908Calls C<clGetCommandQueueInfo> with C<CL_QUEUE_CONTEXT> and returns the result.
909
910=item $device = $command_queue->device
911
912Calls C<clGetCommandQueueInfo> with C<CL_QUEUE_DEVICE> and returns the result.
913
914=item $uint = $command_queue->reference_count
915
916Calls C<clGetCommandQueueInfo> with C<CL_QUEUE_REFERENCE_COUNT> and returns the result.
917
918=item $command_queue_properties = $command_queue->properties
919
920Calls C<clGetCommandQueueInfo> with C<CL_QUEUE_PROPERTIES> and returns the result.
921
922=for gengetinfo end command_queue
923
522=back 924=back
523 925
524=head2 THE OpenCL::Memory CLASS 926=head2 THE OpenCL::Memory CLASS
525 927
526This the superclass of all memory objects - OpenCL::Buffer, OpenCL::Image, 928This the superclass of all memory objects - OpenCL::Buffer, OpenCL::Image,
527OpenCL::Image2D and OpenCL::Image3D. The subclasses of this class 929OpenCL::Image2D and OpenCL::Image3D.
528currently only exist to allow type-checking.
529 930
530=over 4 931=over 4
531 932
532=item $packed_value = $memory->info ($name) 933=item $packed_value = $memory->info ($name)
533 934
534See C<< $platform->info >> for details. 935See C<< $platform->info >> for details.
535 936
536L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetMemObjectInfo.html> 937L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetMemObjectInfo.html>
537 938
939=for gengetinfo begin mem
940
941=item $mem_object_type = $mem->type
942
943Calls C<clGetMemObjectInfo> with C<CL_MEM_TYPE> and returns the result.
944
945=item $mem_flags = $mem->flags
946
947Calls C<clGetMemObjectInfo> with C<CL_MEM_FLAGS> and returns the result.
948
949=item $int = $mem->size
950
951Calls C<clGetMemObjectInfo> with C<CL_MEM_SIZE> and returns the result.
952
953=item $ptr_value = $mem->host_ptr
954
955Calls C<clGetMemObjectInfo> with C<CL_MEM_HOST_PTR> and returns the result.
956
957=item $uint = $mem->map_count
958
959Calls C<clGetMemObjectInfo> with C<CL_MEM_MAP_COUNT> and returns the result.
960
961=item $uint = $mem->reference_count
962
963Calls C<clGetMemObjectInfo> with C<CL_MEM_REFERENCE_COUNT> and returns the result.
964
965=item $ctx = $mem->context
966
967Calls C<clGetMemObjectInfo> with C<CL_MEM_CONTEXT> and returns the result.
968
969=item $mem = $mem->associated_memobject
970
971Calls C<clGetMemObjectInfo> with C<CL_MEM_ASSOCIATED_MEMOBJECT> and returns the result.
972
973=item $int = $mem->offset
974
975Calls C<clGetMemObjectInfo> with C<CL_MEM_OFFSET> and returns the result.
976
977=for gengetinfo end mem
978
979=item ($type, $name) = $mem->gl_object_info
980
981Returns the OpenGL object type (e.g. OpenCL::GL_OBJECT_TEXTURE2D) and the
982object "name" (e.g. the texture name) used to create this memory object.
983
984L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetGLObjectInfo.html>
985
538=back 986=back
539 987
988=head2 THE OpenCL::Buffer CLASS
989
990This is a subclass of OpenCL::Memory, and the superclass of
991OpenCL::BufferObj. Its purpose is simply to distinguish between buffers
992and sub-buffers.
993
994=head2 THE OpenCL::BufferObj CLASS
995
996This is a subclass of OpenCL::Buffer and thus OpenCL::Memory. It exists
997because one cna create sub buffers of OpenLC::BufferObj objects, but not
998sub buffers from these sub buffers.
999
1000=over 4
1001
1002=item $subbuf = $buf_obj->sub_buffer_region ($flags, $origin, $size)
1003
1004Creates an OpenCL::Buffer objects from this buffer and returns it. The
1005C<buffer_create_type> is assumed to be C<CL_BUFFER_CREATE_TYPE_REGION>.
1006
1007L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateSubBuffer.html>
1008
1009=back
1010
1011=head2 THE OpenCL::Image CLASS
1012
1013This is the superclass of all image objects - OpenCL::Image2D and OpenCL::Image3D.
1014
1015=over 4
1016
1017=item $packed_value = $ev->image_info ($name)
1018
1019See C<< $platform->info >> for details.
1020
1021The reason this method is not called C<info> is that there already is an
1022C<< ->info >> method inherited from C<OpenCL::Memory>.
1023
1024L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetImageInfo.html>
1025
1026=for gengetinfo begin image
1027
1028=item $int = $image->element_size
1029
1030Calls C<clGetImageInfo> with C<CL_IMAGE_ELEMENT_SIZE> and returns the result.
1031
1032=item $int = $image->row_pitch
1033
1034Calls C<clGetImageInfo> with C<CL_IMAGE_ROW_PITCH> and returns the result.
1035
1036=item $int = $image->slice_pitch
1037
1038Calls C<clGetImageInfo> with C<CL_IMAGE_SLICE_PITCH> and returns the result.
1039
1040=item $int = $image->width
1041
1042Calls C<clGetImageInfo> with C<CL_IMAGE_WIDTH> and returns the result.
1043
1044=item $int = $image->height
1045
1046Calls C<clGetImageInfo> with C<CL_IMAGE_HEIGHT> and returns the result.
1047
1048=item $int = $image->depth
1049
1050Calls C<clGetImageInfo> with C<CL_IMAGE_DEPTH> and returns the result.
1051
1052=for gengetinfo end image
1053
1054=for gengetinfo begin gl_texture
1055
1056=item $GLenum = $gl_texture->target
1057
1058Calls C<clGetGlTextureInfo> with C<CL_GL_TEXTURE_TARGET> and returns the result.
1059
1060=item $GLint = $gl_texture->gl_mipmap_level
1061
1062Calls C<clGetGlTextureInfo> with C<CL_GL_MIPMAP_LEVEL> and returns the result.
1063
1064=for gengetinfo end gl_texture
1065
1066=back
1067
540=head2 THE OpenCL::Sampler CLASS 1068=head2 THE OpenCL::Sampler CLASS
541 1069
542=over 4 1070=over 4
543 1071
544=item $packed_value = $sampler->info ($name) 1072=item $packed_value = $sampler->info ($name)
545 1073
546See C<< $platform->info >> for details. 1074See C<< $platform->info >> for details.
547 1075
548L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetSamplerInfo.html> 1076L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetSamplerInfo.html>
549 1077
1078=for gengetinfo begin sampler
1079
1080=item $uint = $sampler->reference_count
1081
1082Calls C<clGetSamplerInfo> with C<CL_SAMPLER_REFERENCE_COUNT> and returns the result.
1083
1084=item $ctx = $sampler->context
1085
1086Calls C<clGetSamplerInfo> with C<CL_SAMPLER_CONTEXT> and returns the result.
1087
1088=item $addressing_mode = $sampler->normalized_coords
1089
1090Calls C<clGetSamplerInfo> with C<CL_SAMPLER_NORMALIZED_COORDS> and returns the result.
1091
1092=item $filter_mode = $sampler->addressing_mode
1093
1094Calls C<clGetSamplerInfo> with C<CL_SAMPLER_ADDRESSING_MODE> and returns the result.
1095
1096=item $boolean = $sampler->filter_mode
1097
1098Calls C<clGetSamplerInfo> with C<CL_SAMPLER_FILTER_MODE> and returns the result.
1099
1100=for gengetinfo end sampler
1101
550=back 1102=back
551 1103
552=head2 THE OpenCL::Program CLASS 1104=head2 THE OpenCL::Program CLASS
553 1105
554=over 4 1106=over 4
555
556=item $packed_value = $program->info ($name)
557
558See C<< $platform->info >> for details.
559
560L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetProgramInfo.html>
561 1107
562=item $program->build ($device, $options = "") 1108=item $program->build ($device, $options = "")
563 1109
564Tries to build the program with the givne options. 1110Tries to build the program with the givne options.
565 1111
577Creates an OpenCL::Kernel object out of the named C<__kernel> function in 1123Creates an OpenCL::Kernel object out of the named C<__kernel> function in
578the program. 1124the program.
579 1125
580L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateKernel.html> 1126L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateKernel.html>
581 1127
1128=for gengetinfo begin program_build
1129
1130=item $build_status = $program->build_status ($device)
1131
1132Calls C<clGetProgramBuildInfo> with C<CL_PROGRAM_BUILD_STATUS> and returns the result.
1133
1134=item $string = $program->build_options ($device)
1135
1136Calls C<clGetProgramBuildInfo> with C<CL_PROGRAM_BUILD_OPTIONS> and returns the result.
1137
1138=item $string = $program->build_log ($device)
1139
1140Calls C<clGetProgramBuildInfo> with C<CL_PROGRAM_BUILD_LOG> and returns the result.
1141
1142=for gengetinfo end program_build
1143
1144=item $packed_value = $program->info ($name)
1145
1146See C<< $platform->info >> for details.
1147
1148L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetProgramInfo.html>
1149
1150=for gengetinfo begin program
1151
1152=item $uint = $program->reference_count
1153
1154Calls C<clGetProgramInfo> with C<CL_PROGRAM_REFERENCE_COUNT> and returns the result.
1155
1156=item $ctx = $program->context
1157
1158Calls C<clGetProgramInfo> with C<CL_PROGRAM_CONTEXT> and returns the result.
1159
1160=item $uint = $program->num_devices
1161
1162Calls C<clGetProgramInfo> with C<CL_PROGRAM_NUM_DEVICES> and returns the result.
1163
1164=item @devices = $program->devices
1165
1166Calls C<clGetProgramInfo> with C<CL_PROGRAM_DEVICES> and returns the result.
1167
1168=item $string = $program->source
1169
1170Calls C<clGetProgramInfo> with C<CL_PROGRAM_SOURCE> and returns the result.
1171
1172=item @ints = $program->binary_sizes
1173
1174Calls C<clGetProgramInfo> with C<CL_PROGRAM_BINARY_SIZES> and returns the result.
1175
1176=for gengetinfo end program
1177
1178=item @blobs = $program->binaries
1179
1180Returns a string for the compiled binary for every device associated with
1181the program, empty strings indicate missing programs, and an empty result
1182means no program binaries are available.
1183
1184These "binaries" are often, in fact, informative low-level assembly
1185sources.
1186
1187L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetProgramInfo.html>
1188
582=back 1189=back
583 1190
584=head2 THE OpenCL::Kernel CLASS 1191=head2 THE OpenCL::Kernel CLASS
585 1192
586=over 4 1193=over 4
588=item $packed_value = $kernel->info ($name) 1195=item $packed_value = $kernel->info ($name)
589 1196
590See C<< $platform->info >> for details. 1197See C<< $platform->info >> for details.
591 1198
592L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetKernelInfo.html> 1199L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetKernelInfo.html>
1200
1201=for gengetinfo begin kernel
1202
1203=item $string = $kernel->function_name
1204
1205Calls C<clGetKernelInfo> with C<CL_KERNEL_FUNCTION_NAME> and returns the result.
1206
1207=item $uint = $kernel->num_args
1208
1209Calls C<clGetKernelInfo> with C<CL_KERNEL_NUM_ARGS> and returns the result.
1210
1211=item $uint = $kernel->reference_count
1212
1213Calls C<clGetKernelInfo> with C<CL_KERNEL_REFERENCE_COUNT> and returns the result.
1214
1215=item $ctx = $kernel->context
1216
1217Calls C<clGetKernelInfo> with C<CL_KERNEL_CONTEXT> and returns the result.
1218
1219=item $program = $kernel->program
1220
1221Calls C<clGetKernelInfo> with C<CL_KERNEL_PROGRAM> and returns the result.
1222
1223=for gengetinfo end kernel
1224
1225=item $packed_value = $kernel->work_group_info ($device, $name)
1226
1227See C<< $platform->info >> for details.
1228
1229The reason this method is not called C<info> is that there already is an
1230C<< ->info >> method.
1231
1232L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetKernelWorkGroupInfo.html>
1233
1234=for gengetinfo begin kernel_work_group
1235
1236=item $int = $kernel->work_group_size ($device)
1237
1238Calls C<clGetKernelWorkGroupInfo> with C<CL_KERNEL_WORK_GROUP_SIZE> and returns the result.
1239
1240=item @ints = $kernel->compile_work_group_size ($device)
1241
1242Calls C<clGetKernelWorkGroupInfo> with C<CL_KERNEL_COMPILE_WORK_GROUP_SIZE> and returns the result.
1243
1244=item $ulong = $kernel->local_mem_size ($device)
1245
1246Calls C<clGetKernelWorkGroupInfo> with C<CL_KERNEL_LOCAL_MEM_SIZE> and returns the result.
1247
1248=item $int = $kernel->preferred_work_group_size_multiple ($device)
1249
1250Calls C<clGetKernelWorkGroupInfo> with C<CL_KERNEL_PREFERRED_WORK_GROUP_SIZE_MULTIPLE> and returns the result.
1251
1252=item $ulong = $kernel->private_mem_size ($device)
1253
1254Calls C<clGetKernelWorkGroupInfo> with C<CL_KERNEL_PRIVATE_MEM_SIZE> and returns the result.
1255
1256=for gengetinfo end kernel_work_group
593 1257
594=item $kernel->set_TYPE ($index, $value) 1258=item $kernel->set_TYPE ($index, $value)
595 1259
596This is a family of methods to set the kernel argument with the number C<$index> to the give C<$value>. 1260This is a family of methods to set the kernel argument with the number C<$index> to the give C<$value>.
597 1261
613This is the superclass for all event objects (including OpenCL::UserEvent 1277This is the superclass for all event objects (including OpenCL::UserEvent
614objects). 1278objects).
615 1279
616=over 4 1280=over 4
617 1281
1282=item $ev->wait
1283
1284Waits for the event to complete.
1285
1286L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clWaitForEvents.html>
1287
618=item $packed_value = $ev->info ($name) 1288=item $packed_value = $ev->info ($name)
619 1289
620See C<< $platform->info >> for details. 1290See C<< $platform->info >> for details.
621 1291
622L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetEventInfo.html> 1292L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetEventInfo.html>
623 1293
624=item $ev->wait 1294=for gengetinfo begin event
625 1295
626Waits for the event to complete. 1296=item $queue = $event->command_queue
627 1297
1298Calls C<clGetEventInfo> with C<CL_EVENT_COMMAND_QUEUE> and returns the result.
1299
1300=item $command_type = $event->command_type
1301
1302Calls C<clGetEventInfo> with C<CL_EVENT_COMMAND_TYPE> and returns the result.
1303
1304=item $uint = $event->reference_count
1305
1306Calls C<clGetEventInfo> with C<CL_EVENT_REFERENCE_COUNT> and returns the result.
1307
1308=item $uint = $event->command_execution_status
1309
1310Calls C<clGetEventInfo> with C<CL_EVENT_COMMAND_EXECUTION_STATUS> and returns the result.
1311
1312=item $ctx = $event->context
1313
1314Calls C<clGetEventInfo> with C<CL_EVENT_CONTEXT> and returns the result.
1315
1316=for gengetinfo end event
1317
1318=item $packed_value = $ev->profiling_info ($name)
1319
1320See C<< $platform->info >> for details.
1321
1322The reason this method is not called C<info> is that there already is an
1323C<< ->info >> method.
1324
628L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clWaitForEvents.html> 1325L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetProfilingInfo.html>
1326
1327=for gengetinfo begin profiling
1328
1329=item $ulong = $event->profiling_command_queued
1330
1331Calls C<clGetEventProfilingInfo> with C<CL_PROFILING_COMMAND_QUEUED> and returns the result.
1332
1333=item $ulong = $event->profiling_command_submit
1334
1335Calls C<clGetEventProfilingInfo> with C<CL_PROFILING_COMMAND_SUBMIT> and returns the result.
1336
1337=item $ulong = $event->profiling_command_start
1338
1339Calls C<clGetEventProfilingInfo> with C<CL_PROFILING_COMMAND_START> and returns the result.
1340
1341=item $ulong = $event->profiling_command_end
1342
1343Calls C<clGetEventProfilingInfo> with C<CL_PROFILING_COMMAND_END> and returns the result.
1344
1345=for gengetinfo end profiling
629 1346
630=back 1347=back
631 1348
632=head2 THE OpenCL::UserEvent CLASS 1349=head2 THE OpenCL::UserEvent CLASS
633 1350
646package OpenCL; 1363package OpenCL;
647 1364
648use common::sense; 1365use common::sense;
649 1366
650BEGIN { 1367BEGIN {
651 our $VERSION = '0.14'; 1368 our $VERSION = '0.92';
652 1369
653 require XSLoader; 1370 require XSLoader;
654 XSLoader::load (__PACKAGE__, $VERSION); 1371 XSLoader::load (__PACKAGE__, $VERSION);
655 1372
656 @OpenCL::Buffer::ISA = 1373 @OpenCL::Buffer::ISA =
657 @OpenCL::Image::ISA = OpenCL::Memory::; 1374 @OpenCL::Image::ISA = OpenCL::Memory::;
658 1375
1376 @OpenCL::BufferObj::ISA = OpenCL::Buffer::;
1377
659 @OpenCL::Image2D::ISA = 1378 @OpenCL::Image2D::ISA =
660 @OpenCL::Image3D::ISA = OpenCL::Image::; 1379 @OpenCL::Image3D::ISA = OpenCL::Image::;
661 1380
662 @OpenCL::UserEvent::ISA = OpenCL::Event::; 1381 @OpenCL::UserEvent::ISA = OpenCL::Event::;
663} 1382}
664 1383
6651; 13841;
666 1385
667=head1 AUTHOR 1386=head1 AUTHOR

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