[ViewVC] Diff of: cvs/OpenCL/OpenCL.pm

Comparing OpenCL/OpenCL.pm (file contents):
Revision 1.64 by root, Mon Apr 30 23:12:43 2012 UTC vs.
Revision 1.78 by root, Sat May 5 13:07:19 2012 UTC

…		…
43		43
44	OpenCL::Event objects are used to signal when something is complete.	44	OpenCL::Event objects are used to signal when something is complete.
45		45
46	=head2 HELPFUL RESOURCES	46	=head2 HELPFUL RESOURCES
47		47
48	The OpenCL specs used to develop this module:	48	The OpenCL specs used to develop this module - download these and keept
		49	hema round, they are required reference material:
49		50
50	http://www.khronos.org/registry/cl/specs/opencl-1.1.pdf	51	http://www.khronos.org/registry/cl/specs/opencl-1.1.pdf
51	http://www.khronos.org/registry/cl/specs/opencl-1.2.pdf	52	http://www.khronos.org/registry/cl/specs/opencl-1.2.pdf
52	http://www.khronos.org/registry/cl/specs/opencl-1.2-extensions.pdf	53	http://www.khronos.org/registry/cl/specs/opencl-1.2-extensions.pdf
53		54
…		…
95	initialised at creation time).	96	initialised at creation time).
96		97
97	Enqueue the kernel execution.	98	Enqueue the kernel execution.
98		99
99	Enqueue buffer reads for your output buffer to read results.	100	Enqueue buffer reads for your output buffer to read results.
		101
		102	=head1 OPENCL 1.1 VS. OPENCL 1.2
		103
		104	This module supports both OpenCL version 1.1 and 1.2, although the OpenCL
		105	1.2 interface hasn't been tested much for lack of availability of an
		106	actual implementation.
		107
		108	Every function or method in this manual page that interfaces to a
		109	particular OpenCL function has a link to the its C manual page.
		110
		111	If the link contains a F<1.1>, then this function is an OpenCL 1.1
		112	function. Most but not all also exist in OpenCL 1.2, and this module
		113	tries to emulate the missing ones for you, when told to do so at
		114	compiletime. You cna check whether a function was removed in OpenCL 1.2 by
		115	replacing the F<1.1> component in the URL by F<1.2>.
		116
		117	If the link contains a F<1.2>, then this is a OpenCL 1.2-only
		118	function. Even if the module was compiled with OpenCL 1.2 header files
		119	and has an 1.2 OpenCL library, calling such a function on a platform that
		120	doesn't implement 1.2 causes undefined behaviour, usually a crash (But
		121	this is not guaranteed).
		122
		123	You can find out whether this module was compiled to prefer 1.1
		124	functionality by ooking at C<OpenCL::PREFER_1_1> - if it is true, then
		125	1.1 functions generally are implemented using 1.1 OpenCL functions. If it
		126	is false, then 1.1 functions missing from 1.2 are emulated by calling 1.2
		127	fucntions.
		128
		129	This is a somewhat sorry state of affairs, but the Khronos group choose to
		130	make every release of OpenCL source and binary incompatible with previous
		131	releases.
100		132
101	=head1 EXAMPLES	133	=head1 EXAMPLES
102		134
103	=head2 Enumerate all devices and get contexts for them.	135	=head2 Enumerate all devices and get contexts for them.
104		136
…		…
210		242
211	# wait for the last event to complete	243	# wait for the last event to complete
212	$ev->wait;	244	$ev->wait;
213		245
214	=head2 Use the OpenGL module to share a texture between OpenCL and OpenGL and draw some julia	246	=head2 Use the OpenGL module to share a texture between OpenCL and OpenGL and draw some julia
215	set tunnel effect.	247	set flight effect.
216		248
217	This is quite a long example to get you going - you can download it from	249	This is quite a long example to get you going - you can download it from
218	L<http://cvs.schmorp.de/OpenCL/examples/juliaflight>.	250	L<http://cvs.schmorp.de/OpenCL/examples/juliaflight>.
219		251
220	use OpenGL ":all";	252	use OpenGL ":all";
…		…
304		336
305	glXSwapBuffers;	337	glXSwapBuffers;
306		338
307	select undef, undef, undef, 1/60;	339	select undef, undef, undef, 1/60;
308	}	340	}
		341
		342	=head2 How to modify the previous example to not rely on GL sharing.
		343
		344	For those poor souls with only a sucky CPU OpenCL implementation, you
		345	currently have to read the image into some perl scalar, and then modify a
		346	texture or use glDrawPixels or so).
		347
		348	First, when you don't need gl sharing, you can create the context much simpler:
		349
		350	$ctx = $platform->context (undef, [$dev])
		351
		352	To use a texture, you would modify the above example by creating an
		353	OpenCL::Image manually instead of deriving it from a texture:
		354
		355	my $tex = $ctx->image2d (OpenCL::MEM_WRITE_ONLY, OpenCL::RGBA, OpenCL::UNORM_INT8, $S, $S);
		356
		357	And in the draw loop, intead of acquire_gl_objects/release_gl_objects, you
		358	would read the image2d after the kernel has written it:
		359
		360	$queue->read_image ($tex, 0, 0, 0, 0, $S, $S, 1, 0, 0, my $data);
		361
		362	And then you would upload the pixel data to the texture (or use glDrawPixels):
		363
		364	glTexSubImage2D_s GL_TEXTURE_2D, 0, 0, 0, $S, $S, GL_RGBA, GL_UNSIGNED_BYTE, $data;
		365
		366	The fully modified example can be found at
		367	L<http://cvs.schmorp.de/OpenCL/examples/juliaflight-nosharing>.
		368
		369	=head2 Julia sets look soooo 80ies.
		370
		371	Then colour them differently, e.g. using orbit traps! Replace the loop and
		372	colour calculation from the previous examples by this:
		373
		374	float2 dm = (float2)(1.f, 1.f);
		375
		376	for (int i = 0; i < 25; ++i)
		377	{
		378	z = (float2)(z.x * z.x - z.y * z.y, 2.f * z.x * z.y) + c;
		379	dm = fmin (dm, (float2)(fabs (dot (z, z) - 1.f), fabs (z.x - 1.f)));
		380	}
		381
		382	float3 colour = (float3)(dm.x * dm.y, dm.x * dm.y, dm.x);
		383
		384	Also try C<-10.f> instead of C<-1.f>.
309		385
310	=head1 DOCUMENTATION	386	=head1 DOCUMENTATION
311		387
312	=head2 BASIC CONVENTIONS	388	=head2 BASIC CONVENTIONS
313		389
…		…
389	OpenCL can generate a number of (potentially) asynchronous events, for	465	OpenCL can generate a number of (potentially) asynchronous events, for
390	example, after compiling a program, to signal a context-related error or,	466	example, after compiling a program, to signal a context-related error or,
391	perhaps most important, to signal completion of queued jobs (by setting	467	perhaps most important, to signal completion of queued jobs (by setting
392	callbacks on OpenCL::Event objects).	468	callbacks on OpenCL::Event objects).
393		469
		470	The OpenCL module converts all these callbacks into events - you can
		471	still register callbacks, but they are not executed when your OpenCL
		472	implementation calls the actual callback, but only later. Therefore, none
		473	of the limitations of OpenCL callbacks apply to the perl implementation:
		474	it is perfectly safe to make blocking operations from event callbacks, and
		475	enqueued operations don't need to be flushed.
		476
394	To facilitate this, this module maintains an event queue - each	477	To facilitate this, this module maintains an event queue - each
395	time an asynchronous event happens, it is queued, and perl will be	478	time an asynchronous event happens, it is queued, and perl will be
396	interrupted. This is implemented via the L<Async::Interrupt> module. In	479	interrupted. This is implemented via the L<Async::Interrupt> module. In
397	addition, this module has L<AnyEvent> support, so it can seamlessly	480	addition, this module has L<AnyEvent> support, so it can seamlessly
398	integrate itself into many event loops.	481	integrate itself into many event loops.
399		482
400	Since this module is a bit hard to understand, here are some case examples:	483	Since L<Async::Interrupt> is a bit hard to understand, here are some case examples:
401		484
402	=head3 Don't use callbacks.	485	=head3 Don't use callbacks.
403		486
404	When your program never uses any callbacks, then there will never be any	487	When your program never uses any callbacks, then there will never be any
405	notifications you need to take care of, and therefore no need to worry	488	notifications you need to take care of, and therefore no need to worry
…		…
502	use Async::Interrupt ();	585	use Async::Interrupt ();
503		586
504	our $POLL_FUNC; # set by XS	587	our $POLL_FUNC; # set by XS
505		588
506	BEGIN {	589	BEGIN {
507	our $VERSION = '0.98';	590	our $VERSION = '0.99';
508		591
509	require XSLoader;	592	require XSLoader;
510	XSLoader::load (__PACKAGE__, $VERSION);	593	XSLoader::load (__PACKAGE__, $VERSION);
511		594
512	@OpenCL::Platform::ISA =	595	@OpenCL::Platform::ISA =
…		…
517	@OpenCL::Sampler::ISA =	600	@OpenCL::Sampler::ISA =
518	@OpenCL::Program::ISA =	601	@OpenCL::Program::ISA =
519	@OpenCL::Kernel::ISA =	602	@OpenCL::Kernel::ISA =
520	@OpenCL::Event::ISA = OpenCL::Object::;	603	@OpenCL::Event::ISA = OpenCL::Object::;
521		604
		605	@OpenCL::SubDevice::ISA = OpenCL::Device::;
		606
522	@OpenCL::Buffer::ISA =	607	@OpenCL::Buffer::ISA =
523	@OpenCL::Image::ISA = OpenCL::Memory::;	608	@OpenCL::Image::ISA = OpenCL::Memory::;
524		609
525	@OpenCL::BufferObj::ISA = OpenCL::Buffer::;	610	@OpenCL::BufferObj::ISA = OpenCL::Buffer::;
526		611
…		…
530	@OpenCL::Image1D::ISA =	615	@OpenCL::Image1D::ISA =
531	@OpenCL::Image1DArray::ISA =	616	@OpenCL::Image1DArray::ISA =
532	@OpenCL::Image1DBuffer::ISA = OpenCL::Image::;	617	@OpenCL::Image1DBuffer::ISA = OpenCL::Image::;
533		618
534	@OpenCL::UserEvent::ISA = OpenCL::Event::;	619	@OpenCL::UserEvent::ISA = OpenCL::Event::;
		620
		621	@OpenCL::MappedBuffer::ISA =
		622	@OpenCL::MappedImage::ISA = OpenCL::Mapped::;
535	}	623	}
536		624
537	=head2 THE OpenCL PACKAGE	625	=head2 THE OpenCL PACKAGE
538		626
539	=over 4	627	=over 4
…		…
563	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetPlatformIDs.html>	651	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetPlatformIDs.html>
564		652
565	=item $ctx = OpenCL::context_from_type $properties, $type = OpenCL::DEVICE_TYPE_DEFAULT, $callback->($err, $pvt) = $print_stderr	653	=item $ctx = OpenCL::context_from_type $properties, $type = OpenCL::DEVICE_TYPE_DEFAULT, $callback->($err, $pvt) = $print_stderr
566		654
567	Tries to create a context from a default device and platform type - never worked for me.	655	Tries to create a context from a default device and platform type - never worked for me.
		656	Consider using C<< $platform->context_from_type >> instead.
		657
		658	type: OpenCL::DEVICE_TYPE_DEFAULT, OpenCL::DEVICE_TYPE_CPU, OpenCL::DEVICE_TYPE_GPU,
		659	OpenCL::DEVICE_TYPE_ACCELERATOR, OpenCL::DEVICE_TYPE_CUSTOM, OpenCL::DEVICE_TYPE_ALL.
568		660
569	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateContextFromType.html>	661	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateContextFromType.html>
570		662
571	=item $ctx = OpenCL::context $properties, \@devices, $callback->($err, $pvt) = $print_stderr)	663	=item $ctx = OpenCL::context $properties, \@devices, $callback->($err, $pvt) = $print_stderr)
572		664
573	Create a new OpenCL::Context object using the given device object(s). This	665	Create a new OpenCL::Context object using the given device object(s).
574	function isn't implemented yet, use C<< $platform->context >> instead.	666	Consider using C<< $platform->context >> instead.
575		667
576	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateContext.html>	668	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateContext.html>
577		669
578	=item OpenCL::wait_for_events $wait_events...	670	=item OpenCL::wait_for_events $wait_events...
579		671
…		…
686		778
687	=for gengetinfo begin platform	779	=for gengetinfo begin platform
688		780
689	=item $string = $platform->profile	781	=item $string = $platform->profile
690		782
691	Calls C<clGetPlatformInfo> with C<CL_PLATFORM_PROFILE> and returns the result.	783	Calls C<clGetPlatformInfo> with C<OpenCL::PLATFORM_PROFILE> and returns the result.
692		784
693	=item $string = $platform->version	785	=item $string = $platform->version
694		786
695	Calls C<clGetPlatformInfo> with C<CL_PLATFORM_VERSION> and returns the result.	787	Calls C<clGetPlatformInfo> with C<OpenCL::PLATFORM_VERSION> and returns the result.
696		788
697	=item $string = $platform->name	789	=item $string = $platform->name
698		790
699	Calls C<clGetPlatformInfo> with C<CL_PLATFORM_NAME> and returns the result.	791	Calls C<clGetPlatformInfo> with C<OpenCL::PLATFORM_NAME> and returns the result.
700		792
701	=item $string = $platform->vendor	793	=item $string = $platform->vendor
702		794
703	Calls C<clGetPlatformInfo> with C<CL_PLATFORM_VENDOR> and returns the result.	795	Calls C<clGetPlatformInfo> with C<OpenCL::PLATFORM_VENDOR> and returns the result.
704		796
705	=item $string = $platform->extensions	797	=item $string = $platform->extensions
706		798
707	Calls C<clGetPlatformInfo> with C<CL_PLATFORM_EXTENSIONS> and returns the result.	799	Calls C<clGetPlatformInfo> with C<OpenCL::PLATFORM_EXTENSIONS> and returns the result.
708		800
709	=for gengetinfo end platform	801	=for gengetinfo end platform
710		802
711	=back	803	=back
712		804
…		…
716		808
717	=item $packed_value = $device->info ($name)	809	=item $packed_value = $device->info ($name)
718		810
719	See C<< $platform->info >> for details.	811	See C<< $platform->info >> for details.
720		812
		813	type: OpenCL::DEVICE_TYPE_DEFAULT, OpenCL::DEVICE_TYPE_CPU,
		814	OpenCL::DEVICE_TYPE_GPU, OpenCL::DEVICE_TYPE_ACCELERATOR,
		815	OpenCL::DEVICE_TYPE_CUSTOM, OpenCL::DEVICE_TYPE_ALL.
		816
		817	fp_config: OpenCL::FP_DENORM, OpenCL::FP_INF_NAN, OpenCL::FP_ROUND_TO_NEAREST,
		818	OpenCL::FP_ROUND_TO_ZERO, OpenCL::FP_ROUND_TO_INF, OpenCL::FP_FMA,
		819	OpenCL::FP_SOFT_FLOAT, OpenCL::FP_CORRECTLY_ROUNDED_DIVIDE_SQRT.
		820
		821	mem_cache_type: OpenCL::NONE, OpenCL::READ_ONLY_CACHE, OpenCL::READ_WRITE_CACHE.
		822
		823	local_mem_type: OpenCL::LOCAL, OpenCL::GLOBAL.
		824
		825	exec_capabilities: OpenCL::EXEC_KERNEL, OpenCL::EXEC_NATIVE_KERNEL.
		826
		827	command_queue_properties: OpenCL::QUEUE_OUT_OF_ORDER_EXEC_MODE_ENABLE,
		828	OpenCL::QUEUE_PROFILING_ENABLE.
		829
		830	partition_properties: OpenCL::DEVICE_PARTITION_EQUALLY,
		831	OpenCL::DEVICE_PARTITION_BY_COUNTS, OpenCL::DEVICE_PARTITION_BY_COUNTS_LIST_END,
		832	OpenCL::DEVICE_PARTITION_BY_AFFINITY_DOMAIN.
		833
		834	affinity_domain: OpenCL::DEVICE_AFFINITY_DOMAIN_NUMA,
		835	OpenCL::DEVICE_AFFINITY_DOMAIN_L4_CACHE, OpenCL::DEVICE_AFFINITY_DOMAIN_L3_CACHE,
		836	OpenCL::DEVICE_AFFINITY_DOMAIN_L2_CACHE, OpenCL::DEVICE_AFFINITY_DOMAIN_L1_CACHE,
		837	OpenCL::DEVICE_AFFINITY_DOMAIN_NEXT_PARTITIONABLE.
		838
721	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetDeviceInfo.html>	839	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetDeviceInfo.html>
722		840
		841	=item @devices = $device->sub_devices (\@properties)
		842
		843	Creates OpencL::SubDevice objects by partitioning an existing device.
		844
		845	L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clCreateSubDevices.html>
		846
723	=for gengetinfo begin device	847	=for gengetinfo begin device
724		848
725	=item $device_type = $device->type	849	=item $device_type = $device->type
726		850
727	Calls C<clGetDeviceInfo> with C<CL_DEVICE_TYPE> and returns the result.	851	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_TYPE> and returns the result.
728		852
729	=item $uint = $device->vendor_id	853	=item $uint = $device->vendor_id
730		854
731	Calls C<clGetDeviceInfo> with C<CL_DEVICE_VENDOR_ID> and returns the result.	855	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_VENDOR_ID> and returns the result.
732		856
733	=item $uint = $device->max_compute_units	857	=item $uint = $device->max_compute_units
734		858
735	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_COMPUTE_UNITS> and returns the result.	859	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MAX_COMPUTE_UNITS> and returns the result.
736		860
737	=item $uint = $device->max_work_item_dimensions	861	=item $uint = $device->max_work_item_dimensions
738		862
739	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_WORK_ITEM_DIMENSIONS> and returns the result.	863	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MAX_WORK_ITEM_DIMENSIONS> and returns the result.
740		864
741	=item $int = $device->max_work_group_size	865	=item $int = $device->max_work_group_size
742		866
743	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_WORK_GROUP_SIZE> and returns the result.	867	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MAX_WORK_GROUP_SIZE> and returns the result.
744		868
745	=item @ints = $device->max_work_item_sizes	869	=item @ints = $device->max_work_item_sizes
746		870
747	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_WORK_ITEM_SIZES> and returns the result.	871	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MAX_WORK_ITEM_SIZES> and returns the result.
748		872
749	=item $uint = $device->preferred_vector_width_char	873	=item $uint = $device->preferred_vector_width_char
750		874
751	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PREFERRED_VECTOR_WIDTH_CHAR> and returns the result.	875	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PREFERRED_VECTOR_WIDTH_CHAR> and returns the result.
752		876
753	=item $uint = $device->preferred_vector_width_short	877	=item $uint = $device->preferred_vector_width_short
754		878
755	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PREFERRED_VECTOR_WIDTH_SHORT> and returns the result.	879	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PREFERRED_VECTOR_WIDTH_SHORT> and returns the result.
756		880
757	=item $uint = $device->preferred_vector_width_int	881	=item $uint = $device->preferred_vector_width_int
758		882
759	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PREFERRED_VECTOR_WIDTH_INT> and returns the result.	883	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PREFERRED_VECTOR_WIDTH_INT> and returns the result.
760		884
761	=item $uint = $device->preferred_vector_width_long	885	=item $uint = $device->preferred_vector_width_long
762		886
763	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PREFERRED_VECTOR_WIDTH_LONG> and returns the result.	887	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PREFERRED_VECTOR_WIDTH_LONG> and returns the result.
764		888
765	=item $uint = $device->preferred_vector_width_float	889	=item $uint = $device->preferred_vector_width_float
766		890
767	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PREFERRED_VECTOR_WIDTH_FLOAT> and returns the result.	891	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PREFERRED_VECTOR_WIDTH_FLOAT> and returns the result.
768		892
769	=item $uint = $device->preferred_vector_width_double	893	=item $uint = $device->preferred_vector_width_double
770		894
771	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PREFERRED_VECTOR_WIDTH_DOUBLE> and returns the result.	895	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PREFERRED_VECTOR_WIDTH_DOUBLE> and returns the result.
772		896
773	=item $uint = $device->max_clock_frequency	897	=item $uint = $device->max_clock_frequency
774		898
775	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_CLOCK_FREQUENCY> and returns the result.	899	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MAX_CLOCK_FREQUENCY> and returns the result.
776		900
777	=item $bitfield = $device->address_bits	901	=item $bitfield = $device->address_bits
778		902
779	Calls C<clGetDeviceInfo> with C<CL_DEVICE_ADDRESS_BITS> and returns the result.	903	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_ADDRESS_BITS> and returns the result.
780		904
781	=item $uint = $device->max_read_image_args	905	=item $uint = $device->max_read_image_args
782		906
783	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_READ_IMAGE_ARGS> and returns the result.	907	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MAX_READ_IMAGE_ARGS> and returns the result.
784		908
785	=item $uint = $device->max_write_image_args	909	=item $uint = $device->max_write_image_args
786		910
787	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_WRITE_IMAGE_ARGS> and returns the result.	911	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MAX_WRITE_IMAGE_ARGS> and returns the result.
788		912
789	=item $ulong = $device->max_mem_alloc_size	913	=item $ulong = $device->max_mem_alloc_size
790		914
791	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_MEM_ALLOC_SIZE> and returns the result.	915	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MAX_MEM_ALLOC_SIZE> and returns the result.
792		916
793	=item $int = $device->image2d_max_width	917	=item $int = $device->image2d_max_width
794		918
795	Calls C<clGetDeviceInfo> with C<CL_DEVICE_IMAGE2D_MAX_WIDTH> and returns the result.	919	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_IMAGE2D_MAX_WIDTH> and returns the result.
796		920
797	=item $int = $device->image2d_max_height	921	=item $int = $device->image2d_max_height
798		922
799	Calls C<clGetDeviceInfo> with C<CL_DEVICE_IMAGE2D_MAX_HEIGHT> and returns the result.	923	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_IMAGE2D_MAX_HEIGHT> and returns the result.
800		924
801	=item $int = $device->image3d_max_width	925	=item $int = $device->image3d_max_width
802		926
803	Calls C<clGetDeviceInfo> with C<CL_DEVICE_IMAGE3D_MAX_WIDTH> and returns the result.	927	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_IMAGE3D_MAX_WIDTH> and returns the result.
804		928
805	=item $int = $device->image3d_max_height	929	=item $int = $device->image3d_max_height
806		930
807	Calls C<clGetDeviceInfo> with C<CL_DEVICE_IMAGE3D_MAX_HEIGHT> and returns the result.	931	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_IMAGE3D_MAX_HEIGHT> and returns the result.
808		932
809	=item $int = $device->image3d_max_depth	933	=item $int = $device->image3d_max_depth
810		934
811	Calls C<clGetDeviceInfo> with C<CL_DEVICE_IMAGE3D_MAX_DEPTH> and returns the result.	935	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_IMAGE3D_MAX_DEPTH> and returns the result.
812		936
813	=item $uint = $device->image_support	937	=item $uint = $device->image_support
814		938
815	Calls C<clGetDeviceInfo> with C<CL_DEVICE_IMAGE_SUPPORT> and returns the result.	939	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_IMAGE_SUPPORT> and returns the result.
816		940
817	=item $int = $device->max_parameter_size	941	=item $int = $device->max_parameter_size
818		942
819	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_PARAMETER_SIZE> and returns the result.	943	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MAX_PARAMETER_SIZE> and returns the result.
820		944
821	=item $uint = $device->max_samplers	945	=item $uint = $device->max_samplers
822		946
823	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_SAMPLERS> and returns the result.	947	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MAX_SAMPLERS> and returns the result.
824		948
825	=item $uint = $device->mem_base_addr_align	949	=item $uint = $device->mem_base_addr_align
826		950
827	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MEM_BASE_ADDR_ALIGN> and returns the result.	951	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MEM_BASE_ADDR_ALIGN> and returns the result.
828		952
829	=item $uint = $device->min_data_type_align_size	953	=item $uint = $device->min_data_type_align_size
830		954
831	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MIN_DATA_TYPE_ALIGN_SIZE> and returns the result.	955	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MIN_DATA_TYPE_ALIGN_SIZE> and returns the result.
832		956
833	=item $device_fp_config = $device->single_fp_config	957	=item $device_fp_config = $device->single_fp_config
834		958
835	Calls C<clGetDeviceInfo> with C<CL_DEVICE_SINGLE_FP_CONFIG> and returns the result.	959	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_SINGLE_FP_CONFIG> and returns the result.
836		960
837	=item $device_mem_cache_type = $device->global_mem_cache_type	961	=item $device_mem_cache_type = $device->global_mem_cache_type
838		962
839	Calls C<clGetDeviceInfo> with C<CL_DEVICE_GLOBAL_MEM_CACHE_TYPE> and returns the result.	963	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_GLOBAL_MEM_CACHE_TYPE> and returns the result.
840		964
841	=item $uint = $device->global_mem_cacheline_size	965	=item $uint = $device->global_mem_cacheline_size
842		966
843	Calls C<clGetDeviceInfo> with C<CL_DEVICE_GLOBAL_MEM_CACHELINE_SIZE> and returns the result.	967	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_GLOBAL_MEM_CACHELINE_SIZE> and returns the result.
844		968
845	=item $ulong = $device->global_mem_cache_size	969	=item $ulong = $device->global_mem_cache_size
846		970
847	Calls C<clGetDeviceInfo> with C<CL_DEVICE_GLOBAL_MEM_CACHE_SIZE> and returns the result.	971	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_GLOBAL_MEM_CACHE_SIZE> and returns the result.
848		972
849	=item $ulong = $device->global_mem_size	973	=item $ulong = $device->global_mem_size
850		974
851	Calls C<clGetDeviceInfo> with C<CL_DEVICE_GLOBAL_MEM_SIZE> and returns the result.	975	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_GLOBAL_MEM_SIZE> and returns the result.
852		976
853	=item $ulong = $device->max_constant_buffer_size	977	=item $ulong = $device->max_constant_buffer_size
854		978
855	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_CONSTANT_BUFFER_SIZE> and returns the result.	979	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MAX_CONSTANT_BUFFER_SIZE> and returns the result.
856		980
857	=item $uint = $device->max_constant_args	981	=item $uint = $device->max_constant_args
858		982
859	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_CONSTANT_ARGS> and returns the result.	983	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MAX_CONSTANT_ARGS> and returns the result.
860		984
861	=item $device_local_mem_type = $device->local_mem_type	985	=item $device_local_mem_type = $device->local_mem_type
862		986
863	Calls C<clGetDeviceInfo> with C<CL_DEVICE_LOCAL_MEM_TYPE> and returns the result.	987	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_LOCAL_MEM_TYPE> and returns the result.
864		988
865	=item $ulong = $device->local_mem_size	989	=item $ulong = $device->local_mem_size
866		990
867	Calls C<clGetDeviceInfo> with C<CL_DEVICE_LOCAL_MEM_SIZE> and returns the result.	991	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_LOCAL_MEM_SIZE> and returns the result.
868		992
869	=item $boolean = $device->error_correction_support	993	=item $boolean = $device->error_correction_support
870		994
871	Calls C<clGetDeviceInfo> with C<CL_DEVICE_ERROR_CORRECTION_SUPPORT> and returns the result.	995	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_ERROR_CORRECTION_SUPPORT> and returns the result.
872		996
873	=item $int = $device->profiling_timer_resolution	997	=item $int = $device->profiling_timer_resolution
874		998
875	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PROFILING_TIMER_RESOLUTION> and returns the result.	999	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PROFILING_TIMER_RESOLUTION> and returns the result.
876		1000
877	=item $boolean = $device->endian_little	1001	=item $boolean = $device->endian_little
878		1002
879	Calls C<clGetDeviceInfo> with C<CL_DEVICE_ENDIAN_LITTLE> and returns the result.	1003	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_ENDIAN_LITTLE> and returns the result.
880		1004
881	=item $boolean = $device->available	1005	=item $boolean = $device->available
882		1006
883	Calls C<clGetDeviceInfo> with C<CL_DEVICE_AVAILABLE> and returns the result.	1007	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_AVAILABLE> and returns the result.
884		1008
885	=item $boolean = $device->compiler_available	1009	=item $boolean = $device->compiler_available
886		1010
887	Calls C<clGetDeviceInfo> with C<CL_DEVICE_COMPILER_AVAILABLE> and returns the result.	1011	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_COMPILER_AVAILABLE> and returns the result.
888		1012
889	=item $device_exec_capabilities = $device->execution_capabilities	1013	=item $device_exec_capabilities = $device->execution_capabilities
890		1014
891	Calls C<clGetDeviceInfo> with C<CL_DEVICE_EXECUTION_CAPABILITIES> and returns the result.	1015	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_EXECUTION_CAPABILITIES> and returns the result.
892		1016
893	=item $command_queue_properties = $device->properties	1017	=item $command_queue_properties = $device->properties
894		1018
895	Calls C<clGetDeviceInfo> with C<CL_DEVICE_QUEUE_PROPERTIES> and returns the result.	1019	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_QUEUE_PROPERTIES> and returns the result.
896		1020
897	=item $ = $device->platform	1021	=item $ = $device->platform
898		1022
899	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PLATFORM> and returns the result.	1023	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PLATFORM> and returns the result.
900		1024
901	=item $string = $device->name	1025	=item $string = $device->name
902		1026
903	Calls C<clGetDeviceInfo> with C<CL_DEVICE_NAME> and returns the result.	1027	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_NAME> and returns the result.
904		1028
905	=item $string = $device->vendor	1029	=item $string = $device->vendor
906		1030
907	Calls C<clGetDeviceInfo> with C<CL_DEVICE_VENDOR> and returns the result.	1031	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_VENDOR> and returns the result.
908		1032
909	=item $string = $device->driver_version	1033	=item $string = $device->driver_version
910		1034
911	Calls C<clGetDeviceInfo> with C<CL_DRIVER_VERSION> and returns the result.	1035	Calls C<clGetDeviceInfo> with C<OpenCL::DRIVER_VERSION> and returns the result.
912		1036
913	=item $string = $device->profile	1037	=item $string = $device->profile
914		1038
915	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PROFILE> and returns the result.	1039	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PROFILE> and returns the result.
916		1040
917	=item $string = $device->version	1041	=item $string = $device->version
918		1042
919	Calls C<clGetDeviceInfo> with C<CL_DEVICE_VERSION> and returns the result.	1043	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_VERSION> and returns the result.
920		1044
921	=item $string = $device->extensions	1045	=item $string = $device->extensions
922		1046
923	Calls C<clGetDeviceInfo> with C<CL_DEVICE_EXTENSIONS> and returns the result.	1047	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_EXTENSIONS> and returns the result.
924		1048
925	=item $uint = $device->preferred_vector_width_half	1049	=item $uint = $device->preferred_vector_width_half
926		1050
927	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PREFERRED_VECTOR_WIDTH_HALF> and returns the result.	1051	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PREFERRED_VECTOR_WIDTH_HALF> and returns the result.
928		1052
929	=item $uint = $device->native_vector_width_char	1053	=item $uint = $device->native_vector_width_char
930		1054
931	Calls C<clGetDeviceInfo> with C<CL_DEVICE_NATIVE_VECTOR_WIDTH_CHAR> and returns the result.	1055	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_NATIVE_VECTOR_WIDTH_CHAR> and returns the result.
932		1056
933	=item $uint = $device->native_vector_width_short	1057	=item $uint = $device->native_vector_width_short
934		1058
935	Calls C<clGetDeviceInfo> with C<CL_DEVICE_NATIVE_VECTOR_WIDTH_SHORT> and returns the result.	1059	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_NATIVE_VECTOR_WIDTH_SHORT> and returns the result.
936		1060
937	=item $uint = $device->native_vector_width_int	1061	=item $uint = $device->native_vector_width_int
938		1062
939	Calls C<clGetDeviceInfo> with C<CL_DEVICE_NATIVE_VECTOR_WIDTH_INT> and returns the result.	1063	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_NATIVE_VECTOR_WIDTH_INT> and returns the result.
940		1064
941	=item $uint = $device->native_vector_width_long	1065	=item $uint = $device->native_vector_width_long
942		1066
943	Calls C<clGetDeviceInfo> with C<CL_DEVICE_NATIVE_VECTOR_WIDTH_LONG> and returns the result.	1067	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_NATIVE_VECTOR_WIDTH_LONG> and returns the result.
944		1068
945	=item $uint = $device->native_vector_width_float	1069	=item $uint = $device->native_vector_width_float
946		1070
947	Calls C<clGetDeviceInfo> with C<CL_DEVICE_NATIVE_VECTOR_WIDTH_FLOAT> and returns the result.	1071	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_NATIVE_VECTOR_WIDTH_FLOAT> and returns the result.
948		1072
949	=item $uint = $device->native_vector_width_double	1073	=item $uint = $device->native_vector_width_double
950		1074
951	Calls C<clGetDeviceInfo> with C<CL_DEVICE_NATIVE_VECTOR_WIDTH_DOUBLE> and returns the result.	1075	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_NATIVE_VECTOR_WIDTH_DOUBLE> and returns the result.
952		1076
953	=item $uint = $device->native_vector_width_half	1077	=item $uint = $device->native_vector_width_half
954		1078
955	Calls C<clGetDeviceInfo> with C<CL_DEVICE_NATIVE_VECTOR_WIDTH_HALF> and returns the result.	1079	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_NATIVE_VECTOR_WIDTH_HALF> and returns the result.
956		1080
957	=item $device_fp_config = $device->double_fp_config	1081	=item $device_fp_config = $device->double_fp_config
958		1082
959	Calls C<clGetDeviceInfo> with C<CL_DEVICE_DOUBLE_FP_CONFIG> and returns the result.	1083	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_DOUBLE_FP_CONFIG> and returns the result.
960		1084
961	=item $device_fp_config = $device->half_fp_config	1085	=item $device_fp_config = $device->half_fp_config
962		1086
963	Calls C<clGetDeviceInfo> with C<CL_DEVICE_HALF_FP_CONFIG> and returns the result.	1087	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_HALF_FP_CONFIG> and returns the result.
964		1088
965	=item $boolean = $device->host_unified_memory	1089	=item $boolean = $device->host_unified_memory
966		1090
967	Calls C<clGetDeviceInfo> with C<CL_DEVICE_HOST_UNIFIED_MEMORY> and returns the result.	1091	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_HOST_UNIFIED_MEMORY> and returns the result.
968		1092
969	=item $device = $device->parent_device_ext	1093	=item $device = $device->parent_device_ext
970		1094
971	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PARENT_DEVICE_EXT> and returns the result.	1095	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PARENT_DEVICE_EXT> and returns the result.
972		1096
973	=item @device_partition_property_exts = $device->partition_types_ext	1097	=item @device_partition_property_exts = $device->partition_types_ext
974		1098
975	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PARTITION_TYPES_EXT> and returns the result.	1099	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PARTITION_TYPES_EXT> and returns the result.
976		1100
977	=item @device_partition_property_exts = $device->affinity_domains_ext	1101	=item @device_partition_property_exts = $device->affinity_domains_ext
978		1102
979	Calls C<clGetDeviceInfo> with C<CL_DEVICE_AFFINITY_DOMAINS_EXT> and returns the result.	1103	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_AFFINITY_DOMAINS_EXT> and returns the result.
980		1104
981	=item $uint = $device->reference_count_ext	1105	=item $uint = $device->reference_count_ext
982		1106
983	Calls C<clGetDeviceInfo> with C<CL_DEVICE_REFERENCE_COUNT_EXT> and returns the result.	1107	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_REFERENCE_COUNT_EXT> and returns the result.
984		1108
985	=item @device_partition_property_exts = $device->partition_style_ext	1109	=item @device_partition_property_exts = $device->partition_style_ext
986		1110
987	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PARTITION_STYLE_EXT> and returns the result.	1111	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PARTITION_STYLE_EXT> and returns the result.
988		1112
989	=for gengetinfo end device	1113	=for gengetinfo end device
990		1114
991	=back	1115	=back
992		1116
993	=head2 THE OpenCL::Context CLASS	1117	=head2 THE OpenCL::Context CLASS
		1118
		1119	An OpenCL::Context is basically a container, or manager, for a number of
		1120	devices of a platform. It is used to create all sorts of secondary objects
		1121	such as buffers, queues, programs and so on.
		1122
		1123	All context creation functions and methods take a list of properties
		1124	(type-value pairs). All property values can be specified as integers -
		1125	some additionally support other types:
		1126
		1127	=over 4
		1128
		1129	=item OpenCL::CONTEXT_PLATFORM
		1130
		1131	Also accepts OpenCL::Platform objects.
		1132
		1133	=item OpenCL::GLX_DISPLAY_KHR
		1134
		1135	Also accepts C<undef>, in which case a deep and troubling hack is engaged
		1136	to find the current glx display (see L<GLX SUPPORT>).
		1137
		1138	=item OpenCL::GL_CONTEXT_KHR
		1139
		1140	Also accepts C<undef>, in which case a deep and troubling hack is engaged
		1141	to find the current glx context (see L<GLX SUPPORT>).
		1142
		1143	=back
994		1144
995	=over 4	1145	=over 4
996		1146
997	=item $prog = $ctx->build_program ($program, $options = "")	1147	=item $prog = $ctx->build_program ($program, $options = "")
998		1148
…		…
1046	=item $buf = $ctx->buffer ($flags, $len)	1196	=item $buf = $ctx->buffer ($flags, $len)
1047		1197
1048	Creates a new OpenCL::Buffer (actually OpenCL::BufferObj) object with the	1198	Creates a new OpenCL::Buffer (actually OpenCL::BufferObj) object with the
1049	given flags and octet-size.	1199	given flags and octet-size.
1050		1200
		1201	flags: OpenCL::MEM_READ_WRITE, OpenCL::MEM_WRITE_ONLY, OpenCL::MEM_READ_ONLY,
		1202	OpenCL::MEM_USE_HOST_PTR, OpenCL::MEM_ALLOC_HOST_PTR, OpenCL::MEM_COPY_HOST_PTR,
		1203	OpenCL::MEM_HOST_WRITE_ONLY, OpenCL::MEM_HOST_READ_ONLY, OpenCL::MEM_HOST_NO_ACCESS.
		1204
1051	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateBuffer.html>	1205	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateBuffer.html>
1052		1206
1053	=item $buf = $ctx->buffer_sv ($flags, $data)	1207	=item $buf = $ctx->buffer_sv ($flags, $data)
1054		1208
1055	Creates a new OpenCL::Buffer (actually OpenCL::BufferObj) object and	1209	Creates a new OpenCL::Buffer (actually OpenCL::BufferObj) object and
…		…
1058	=item $img = $ctx->image ($self, $flags, $channel_order, $channel_type, $type, $width, $height, $depth = 0, $array_size = 0, $row_pitch = 0, $slice_pitch = 0, $num_mip_level = 0, $num_samples = 0, $*data = &PL_sv_undef)	1212	=item $img = $ctx->image ($self, $flags, $channel_order, $channel_type, $type, $width, $height, $depth = 0, $array_size = 0, $row_pitch = 0, $slice_pitch = 0, $num_mip_level = 0, $num_samples = 0, $*data = &PL_sv_undef)
1059		1213
1060	Creates a new OpenCL::Image object and optionally initialises it with	1214	Creates a new OpenCL::Image object and optionally initialises it with
1061	the given data values.	1215	the given data values.
1062		1216
		1217	channel_order: OpenCL::R, OpenCL::A, OpenCL::RG, OpenCL::RA, OpenCL::RGB,
		1218	OpenCL::RGBA, OpenCL::BGRA, OpenCL::ARGB, OpenCL::INTENSITY, OpenCL::LUMINANCE,
		1219	OpenCL::Rx, OpenCL::RGx, OpenCL::RGBx.
		1220
		1221	channel_type: OpenCL::SNORM_INT8, OpenCL::SNORM_INT16, OpenCL::UNORM_INT8,
		1222	OpenCL::UNORM_INT16, OpenCL::UNORM_SHORT_565, OpenCL::UNORM_SHORT_555,
		1223	OpenCL::UNORM_INT_101010, OpenCL::SIGNED_INT8, OpenCL::SIGNED_INT16,
		1224	OpenCL::SIGNED_INT32, OpenCL::UNSIGNED_INT8, OpenCL::UNSIGNED_INT16,
		1225	OpenCL::UNSIGNED_INT32, OpenCL::HALF_FLOAT, OpenCL::FLOAT.
		1226
		1227	type: OpenCL::MEM_OBJECT_BUFFER, OpenCL::MEM_OBJECT_IMAGE2D,
		1228	OpenCL::MEM_OBJECT_IMAGE3D, OpenCL::MEM_OBJECT_IMAGE2D_ARRAY,
		1229	OpenCL::MEM_OBJECT_IMAGE1D, OpenCL::MEM_OBJECT_IMAGE1D_ARRAY,
		1230	OpenCL::MEM_OBJECT_IMAGE1D_BUFFER.
		1231
1063	L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clCreateImage.html>	1232	L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clCreateImage.html>
1064		1233
1065	=item $img = $ctx->image2d ($flags, $channel_order, $channel_type, $width, $height, $row_pitch = 0, $data = undef)	1234	=item $img = $ctx->image2d ($flags, $channel_order, $channel_type, $width, $height, $row_pitch = 0, $data = undef)
1066		1235
1067	Creates a new OpenCL::Image2D object and optionally initialises it with	1236	Creates a new OpenCL::Image2D object and optionally initialises it with
…		…
1079	=item $buffer = $ctx->gl_buffer ($flags, $bufobj)	1248	=item $buffer = $ctx->gl_buffer ($flags, $bufobj)
1080		1249
1081	Creates a new OpenCL::Buffer (actually OpenCL::BufferObj) object that refers to the given	1250	Creates a new OpenCL::Buffer (actually OpenCL::BufferObj) object that refers to the given
1082	OpenGL buffer object.	1251	OpenGL buffer object.
1083		1252
		1253	flags: OpenCL::MEM_READ_WRITE, OpenCL::MEM_READ_ONLY, OpenCL::MEM_WRITE_ONLY.
		1254
1084	http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateFromGLBuffer.html	1255	http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateFromGLBuffer.html
1085		1256
1086	=item $img = $ctx->gl_texture ($flags, $target, $miplevel, $texture)	1257	=item $img = $ctx->gl_texture ($flags, $target, $miplevel, $texture)
1087		1258
1088	Creates a new OpenCL::Image object that refers to the given OpenGL	1259	Creates a new OpenCL::Image object that refers to the given OpenGL
1089	texture object or buffer.	1260	texture object or buffer.
1090		1261
		1262	target: GL_TEXTURE_1D, GL_TEXTURE_1D_ARRAY, GL_TEXTURE_BUFFER,
		1263	GL_TEXTURE_2D, GL_TEXTURE_2D_ARRAY, GL_TEXTURE_3D,
		1264	GL_TEXTURE_CUBE_MAP_POSITIVE_X, GL_TEXTURE_CUBE_MAP_POSITIVE_Y,
		1265	GL_TEXTURE_CUBE_MAP_POSITIVE_Z, GL_TEXTURE_CUBE_MAP_NEGATIVE_X,
		1266	GL_TEXTURE_CUBE_MAP_NEGATIVE_Y, GL_TEXTURE_CUBE_MAP_NEGATIVE_Z,
		1267	GL_TEXTURE_RECTANGLE/GL_TEXTURE_RECTANGLE_ARB.
		1268
1091	http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clCreateFromGLTexture.html	1269	http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clCreateFromGLTexture.html
1092		1270
1093	=item $img = $ctx->gl_texture2d ($flags, $target, $miplevel, $texture)	1271	=item $img = $ctx->gl_texture2d ($flags, $target, $miplevel, $texture)
1094		1272
1095	Creates a new OpenCL::Image2D object that refers to the given OpenGL	1273	Creates a new OpenCL::Image2D object that refers to the given OpenGL
…		…
1120		1298
1121	=item $sampler = $ctx->sampler ($normalized_coords, $addressing_mode, $filter_mode)	1299	=item $sampler = $ctx->sampler ($normalized_coords, $addressing_mode, $filter_mode)
1122		1300
1123	Creates a new OpenCL::Sampler object.	1301	Creates a new OpenCL::Sampler object.
1124		1302
		1303	addressing_mode: OpenCL::ADDRESS_NONE, OpenCL::ADDRESS_CLAMP_TO_EDGE,
		1304	OpenCL::ADDRESS_CLAMP, OpenCL::ADDRESS_REPEAT, OpenCL::ADDRESS_MIRRORED_REPEAT.
		1305
		1306	filter_mode: OpenCL::FILTER_NEAREST, OpenCL::FILTER_LINEAR.
		1307
1125	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateSampler.html>	1308	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateSampler.html>
1126		1309
1127	=item $program = $ctx->program_with_source ($string)	1310	=item $program = $ctx->program_with_source ($string)
1128		1311
1129	Creates a new OpenCL::Program object from the given source code.	1312	Creates a new OpenCL::Program object from the given source code.
1130		1313
1131	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateProgramWithSource.html>	1314	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateProgramWithSource.html>
1132		1315
		1316	=item ($program, \@status) = $ctx->program_with_binary (\@devices, \@binaries)
		1317
		1318	Creates a new OpenCL::Program object from the given binaries.
		1319
		1320	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateProgramWithBinary.html>
		1321
		1322	Example: clone an existing program object that contains a successfully
		1323	compiled program, no matter how useless this is.
		1324
		1325	my $clone = $ctx->program_with_binary ([$prog->devices], [$prog->binaries]);
		1326
		1327	=item $program = $ctx->program_with_built_in_kernels (\@devices, $kernel_names)
		1328
		1329	Creates a new OpenCL::Program object from the given built-in kernel names.
		1330
		1331	L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clCreateProgramWithBuiltInKernels.html>
		1332
		1333	=item $program = $ctx->link_program (\@devices, $options, \@programs, $cb->($program) = undef)
		1334
		1335	Links all (already compiled) program objects specified in C<@programs>
		1336	together and returns a new OpenCL::Program object with the result.
		1337
		1338	L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clLinkProgram.html>
		1339
1133	=item $packed_value = $ctx->info ($name)	1340	=item $packed_value = $ctx->info ($name)
1134		1341
1135	See C<< $platform->info >> for details.	1342	See C<< $platform->info >> for details.
1136		1343
1137	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetContextInfo.html>	1344	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetContextInfo.html>
1138		1345
1139	=for gengetinfo begin context	1346	=for gengetinfo begin context
1140		1347
1141	=item $uint = $context->reference_count	1348	=item $uint = $context->reference_count
1142		1349
1143	Calls C<clGetContextInfo> with C<CL_CONTEXT_REFERENCE_COUNT> and returns the result.	1350	Calls C<clGetContextInfo> with C<OpenCL::CONTEXT_REFERENCE_COUNT> and returns the result.
1144		1351
1145	=item @devices = $context->devices	1352	=item @devices = $context->devices
1146		1353
1147	Calls C<clGetContextInfo> with C<CL_CONTEXT_DEVICES> and returns the result.	1354	Calls C<clGetContextInfo> with C<OpenCL::CONTEXT_DEVICES> and returns the result.
1148		1355
1149	=item @property_ints = $context->properties	1356	=item @property_ints = $context->properties
1150		1357
1151	Calls C<clGetContextInfo> with C<CL_CONTEXT_PROPERTIES> and returns the result.	1358	Calls C<clGetContextInfo> with C<OpenCL::CONTEXT_PROPERTIES> and returns the result.
1152		1359
1153	=item $uint = $context->num_devices	1360	=item $uint = $context->num_devices
1154		1361
1155	Calls C<clGetContextInfo> with C<CL_CONTEXT_NUM_DEVICES> and returns the result.	1362	Calls C<clGetContextInfo> with C<OpenCL::CONTEXT_NUM_DEVICES> and returns the result.
1156		1363
1157	=for gengetinfo end context	1364	=for gengetinfo end context
1158		1365
1159	=back	1366	=back
1160		1367
…		…
1207		1414
1208	=item $ev = $queue->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...)	1415	=item $ev = $queue->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...)
1209		1416
1210	http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWriteBufferRect.html	1417	http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWriteBufferRect.html
1211		1418
		1419	=item $ev = $queue->copy_buffer_to_image ($src_buffer, $dst_image, $src_offset, $dst_x, $dst_y, $dst_z, $width, $height, $depth, $wait_events...)
		1420
		1421	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyBufferToImage.html>
		1422
1212	=item $ev = $queue->read_image ($src, $blocking, $x, $y, $z, $width, $height, $depth, $row_pitch, $slice_pitch, $data, $wait_events...)	1423	=item $ev = $queue->read_image ($src, $blocking, $x, $y, $z, $width, $height, $depth, $row_pitch, $slice_pitch, $data, $wait_events...)
1213		1424
1214	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyBufferRect.html>	1425	C<$row_pitch> (and C<$slice_pitch>) can be C<0>, in which case the OpenCL
1215		1426	module uses the image width (and height) to supply default values.
1216	=item $ev = $queue->copy_buffer_to_image ($src_buffer, $dst_image, $src_offset, $dst_x, $dst_y, $dst_z, $width, $height, $depth, $wait_events...)
1217		1427
1218	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReadImage.html>	1428	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReadImage.html>
1219		1429
1220	=item $ev = $queue->write_image ($src, $blocking, $x, $y, $z, $width, $height, $depth, $row_pitch, $slice_pitch, $data, $wait_events...)	1430	=item $ev = $queue->write_image ($src, $blocking, $x, $y, $z, $width, $height, $depth, $row_pitch, $slice_pitch, $data, $wait_events...)
1221		1431
		1432	C<$row_pitch> (and C<$slice_pitch>) can be C<0>, in which case the OpenCL
		1433	module uses the image width (and height) to supply default values.
1222	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWriteImage.html>	1434	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWriteImage.html>
1223		1435
1224	=item $ev = $queue->copy_image ($src_image, $dst_image, $src_x, $src_y, $src_z, $dst_x, $dst_y, $dst_z, $width, $height, $depth, $wait_events...)	1436	=item $ev = $queue->copy_image ($src_image, $dst_image, $src_x, $src_y, $src_z, $dst_x, $dst_y, $dst_z, $width, $height, $depth, $wait_events...)
1225		1437
1226	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyImage.html>	1438	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyImage.html>
…		…
1271	reference to an array of local work sizes, with the same number of	1483	reference to an array of local work sizes, with the same number of
1272	elements as \@global_work_size.	1484	elements as \@global_work_size.
1273		1485
1274	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueNDRangeKernel.html>	1486	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueNDRangeKernel.html>
1275		1487
		1488	=item $ev = $queue->migrate_mem_objects (\@mem_objects, $flags, $wait_events...)
		1489
		1490	Migrates a number of OpenCL::Memory objects to or from the device.
		1491
		1492	flags: OpenCL::MIGRATE_MEM_OBJECT_HOST, OpenCL::MIGRATE_MEM_OBJECT_CONTENT_UNDEFINED
		1493
		1494	L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clEnqueueMigrateMemObjects.html>
		1495
1276	=item $ev = $queue->acquire_gl_objects ([object, ...], $wait_events...)	1496	=item $ev = $queue->acquire_gl_objects ([object, ...], $wait_events...)
1277		1497
1278	Enqueues a list (an array-ref of OpenCL::Memory objects) to be acquired	1498	Enqueues a list (an array-ref of OpenCL::Memory objects) to be acquired
1279	for subsequent OpenCL usage.	1499	for subsequent OpenCL usage.
1280		1500
…		…
1315		1535
1316	=for gengetinfo begin command_queue	1536	=for gengetinfo begin command_queue
1317		1537
1318	=item $ctx = $command_queue->context	1538	=item $ctx = $command_queue->context
1319		1539
1320	Calls C<clGetCommandQueueInfo> with C<CL_QUEUE_CONTEXT> and returns the result.	1540	Calls C<clGetCommandQueueInfo> with C<OpenCL::QUEUE_CONTEXT> and returns the result.
1321		1541
1322	=item $device = $command_queue->device	1542	=item $device = $command_queue->device
1323		1543
1324	Calls C<clGetCommandQueueInfo> with C<CL_QUEUE_DEVICE> and returns the result.	1544	Calls C<clGetCommandQueueInfo> with C<OpenCL::QUEUE_DEVICE> and returns the result.
1325		1545
1326	=item $uint = $command_queue->reference_count	1546	=item $uint = $command_queue->reference_count
1327		1547
1328	Calls C<clGetCommandQueueInfo> with C<CL_QUEUE_REFERENCE_COUNT> and returns the result.	1548	Calls C<clGetCommandQueueInfo> with C<OpenCL::QUEUE_REFERENCE_COUNT> and returns the result.
1329		1549
1330	=item $command_queue_properties = $command_queue->properties	1550	=item $command_queue_properties = $command_queue->properties
1331		1551
1332	Calls C<clGetCommandQueueInfo> with C<CL_QUEUE_PROPERTIES> and returns the result.	1552	Calls C<clGetCommandQueueInfo> with C<OpenCL::QUEUE_PROPERTIES> and returns the result.
1333		1553
1334	=for gengetinfo end command_queue	1554	=for gengetinfo end command_queue
		1555
		1556	=back
		1557
		1558	=head3 MEMORY MAPPED BUFFERS
		1559
		1560	OpenCL allows you to map buffers and images to host memory (read: perl
		1561	scalars). This is done much like reading or copying a buffer, by enqueuing
		1562	a map or unmap operation on the command queue.
		1563
		1564	The map operations return an C<OpenCL::Mapped> object - see L<THE
		1565	OpenCL::Mapped CLASS> section for details on what to do with these
		1566	objects.
		1567
		1568	The object will be unmapped automatically when the mapped object is
		1569	destroyed (you can use a barrier to make sure the unmap has finished,
		1570	before using the buffer in a kernel), but you can also enqueue an unmap
		1571	operation manually.
		1572
		1573	=over 4
		1574
		1575	=item $mapped_buffer = $queue->map_buffer ($buf, $blocking=1, $map_flags=OpenCL::MAP_READ\|OpenCL::MAP_WRITE, $offset=0, $size=undef, $wait_events...)
		1576
		1577	Maps the given buffer into host memory and returns an
		1578	C<OpenCL::MappedBuffer> object. If C<$size> is specified as undef, then
		1579	the map will extend to the end of the buffer.
		1580
		1581	map_flags: OpenCL::MAP_READ, OpenCL::MAP_WRITE, OpenCL::MAP_WRITE_INVALIDATE_REGION.
		1582
		1583	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueMapBuffer.html>
		1584
		1585	Example: map the buffer $buf fully and replace the first 4 bytes by "abcd", then unmap.
		1586
		1587	{
		1588	my $mapped = $queue->map_buffer ($buf, 1, OpenCL::MAP_WRITE);
		1589	substr $$mapped, 0, 4, "abcd";
		1590	} # asynchronously unmap because $mapped is destroyed
		1591
		1592	=item $mapped_image = $queue->map_image ($img, $blocking=1, $map_flags=OpenCL::MAP_READ\|OpenCL::MAP_WRITE, $x=0, $y=0, $z=0, $width=undef, $height=undef, $depth=undef, $wait_events...)
		1593
		1594	Maps the given image area into host memory and return an
		1595	C<OpenCL::MappedImage> object.
		1596
		1597	If any of C<$width>, C<$height> and/or C<$depth> are C<undef> then they
		1598	will be replaced by the maximum possible value.
		1599
		1600	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueMapImage.html>
		1601
		1602	Example: map an image (with OpenCL::UNSIGNED_INT8 channel type) and set
		1603	the first channel of the leftmost column to 5, then explicitly unmap
		1604	it. You are not necessarily meant to do it this way, this example just
		1605	shows you the accessors to use :)
		1606
		1607	my $mapped = $queue->map_image ($image, 1, OpenCL::MAP_WRITE);
		1608
		1609	$mapped->set ($_ * $mapped->row_pitch, pack "C", 5)
		1610	for 0..$image->height;
		1611
		1612	$mapped->unmap;.
		1613	$mapped->wait; # only needed for out of order queues normally
		1614
		1615	=item $ev = $queue->unmap ($mapped, $wait_events...)
		1616
		1617	Unmaps the data from host memory. You must not call any methods that
		1618	modify the data, or modify the data scalar directly, after calling this
		1619	method.
		1620
		1621	The mapped event object will always be passed as part of the
		1622	$wait_events. The mapped event object will be replaced by the new event
		1623	object that this request creates.
1335		1624
1336	=back	1625	=back
1337		1626
1338	=head2 THE OpenCL::Memory CLASS	1627	=head2 THE OpenCL::Memory CLASS
1339		1628
…		…
1350		1639
1351	=for gengetinfo begin mem	1640	=for gengetinfo begin mem
1352		1641
1353	=item $mem_object_type = $mem->type	1642	=item $mem_object_type = $mem->type
1354		1643
1355	Calls C<clGetMemObjectInfo> with C<CL_MEM_TYPE> and returns the result.	1644	Calls C<clGetMemObjectInfo> with C<OpenCL::MEM_TYPE> and returns the result.
1356		1645
1357	=item $mem_flags = $mem->flags	1646	=item $mem_flags = $mem->flags
1358		1647
1359	Calls C<clGetMemObjectInfo> with C<CL_MEM_FLAGS> and returns the result.	1648	Calls C<clGetMemObjectInfo> with C<OpenCL::MEM_FLAGS> and returns the result.
1360		1649
1361	=item $int = $mem->size	1650	=item $int = $mem->size
1362		1651
1363	Calls C<clGetMemObjectInfo> with C<CL_MEM_SIZE> and returns the result.	1652	Calls C<clGetMemObjectInfo> with C<OpenCL::MEM_SIZE> and returns the result.
1364		1653
1365	=item $ptr_value = $mem->host_ptr	1654	=item $ptr_value = $mem->host_ptr
1366		1655
1367	Calls C<clGetMemObjectInfo> with C<CL_MEM_HOST_PTR> and returns the result.	1656	Calls C<clGetMemObjectInfo> with C<OpenCL::MEM_HOST_PTR> and returns the result.
1368		1657
1369	=item $uint = $mem->map_count	1658	=item $uint = $mem->map_count
1370		1659
1371	Calls C<clGetMemObjectInfo> with C<CL_MEM_MAP_COUNT> and returns the result.	1660	Calls C<clGetMemObjectInfo> with C<OpenCL::MEM_MAP_COUNT> and returns the result.
1372		1661
1373	=item $uint = $mem->reference_count	1662	=item $uint = $mem->reference_count
1374		1663
1375	Calls C<clGetMemObjectInfo> with C<CL_MEM_REFERENCE_COUNT> and returns the result.	1664	Calls C<clGetMemObjectInfo> with C<OpenCL::MEM_REFERENCE_COUNT> and returns the result.
1376		1665
1377	=item $ctx = $mem->context	1666	=item $ctx = $mem->context
1378		1667
1379	Calls C<clGetMemObjectInfo> with C<CL_MEM_CONTEXT> and returns the result.	1668	Calls C<clGetMemObjectInfo> with C<OpenCL::MEM_CONTEXT> and returns the result.
1380		1669
1381	=item $mem = $mem->associated_memobject	1670	=item $mem = $mem->associated_memobject
1382		1671
1383	Calls C<clGetMemObjectInfo> with C<CL_MEM_ASSOCIATED_MEMOBJECT> and returns the result.	1672	Calls C<clGetMemObjectInfo> with C<OpenCL::MEM_ASSOCIATED_MEMOBJECT> and returns the result.
1384		1673
1385	=item $int = $mem->offset	1674	=item $int = $mem->offset
1386		1675
1387	Calls C<clGetMemObjectInfo> with C<CL_MEM_OFFSET> and returns the result.	1676	Calls C<clGetMemObjectInfo> with C<OpenCL::MEM_OFFSET> and returns the result.
1388		1677
1389	=for gengetinfo end mem	1678	=for gengetinfo end mem
1390		1679
1391	=item ($type, $name) = $mem->gl_object_info	1680	=item ($type, $name) = $mem->gl_object_info
1392		1681
…		…
1444		1733
1445	=for gengetinfo begin image	1734	=for gengetinfo begin image
1446		1735
1447	=item $int = $image->element_size	1736	=item $int = $image->element_size
1448		1737
1449	Calls C<clGetImageInfo> with C<CL_IMAGE_ELEMENT_SIZE> and returns the result.	1738	Calls C<clGetImageInfo> with C<OpenCL::IMAGE_ELEMENT_SIZE> and returns the result.
1450		1739
1451	=item $int = $image->row_pitch	1740	=item $int = $image->row_pitch
1452		1741
1453	Calls C<clGetImageInfo> with C<CL_IMAGE_ROW_PITCH> and returns the result.	1742	Calls C<clGetImageInfo> with C<OpenCL::IMAGE_ROW_PITCH> and returns the result.
1454		1743
1455	=item $int = $image->slice_pitch	1744	=item $int = $image->slice_pitch
1456		1745
1457	Calls C<clGetImageInfo> with C<CL_IMAGE_SLICE_PITCH> and returns the result.	1746	Calls C<clGetImageInfo> with C<OpenCL::IMAGE_SLICE_PITCH> and returns the result.
1458		1747
1459	=item $int = $image->width	1748	=item $int = $image->width
1460		1749
1461	Calls C<clGetImageInfo> with C<CL_IMAGE_WIDTH> and returns the result.	1750	Calls C<clGetImageInfo> with C<OpenCL::IMAGE_WIDTH> and returns the result.
1462		1751
1463	=item $int = $image->height	1752	=item $int = $image->height
1464		1753
1465	Calls C<clGetImageInfo> with C<CL_IMAGE_HEIGHT> and returns the result.	1754	Calls C<clGetImageInfo> with C<OpenCL::IMAGE_HEIGHT> and returns the result.
1466		1755
1467	=item $int = $image->depth	1756	=item $int = $image->depth
1468		1757
1469	Calls C<clGetImageInfo> with C<CL_IMAGE_DEPTH> and returns the result.	1758	Calls C<clGetImageInfo> with C<OpenCL::IMAGE_DEPTH> and returns the result.
1470		1759
1471	=for gengetinfo end image	1760	=for gengetinfo end image
1472		1761
1473	=for gengetinfo begin gl_texture	1762	=for gengetinfo begin gl_texture
1474		1763
1475	=item $GLenum = $gl_texture->target	1764	=item $GLenum = $gl_texture->target
1476		1765
1477	Calls C<clGetGLTextureInfo> with C<CL_GL_TEXTURE_TARGET> and returns the result.	1766	Calls C<clGetGLTextureInfo> with C<OpenCL::GL_TEXTURE_TARGET> and returns the result.
1478		1767
1479	=item $GLint = $gl_texture->gl_mipmap_level	1768	=item $GLint = $gl_texture->gl_mipmap_level
1480		1769
1481	Calls C<clGetGLTextureInfo> with C<CL_GL_MIPMAP_LEVEL> and returns the result.	1770	Calls C<clGetGLTextureInfo> with C<OpenCL::GL_MIPMAP_LEVEL> and returns the result.
1482		1771
1483	=for gengetinfo end gl_texture	1772	=for gengetinfo end gl_texture
1484		1773
1485	=back	1774	=back
1486		1775
…		…
1496		1785
1497	=for gengetinfo begin sampler	1786	=for gengetinfo begin sampler
1498		1787
1499	=item $uint = $sampler->reference_count	1788	=item $uint = $sampler->reference_count
1500		1789
1501	Calls C<clGetSamplerInfo> with C<CL_SAMPLER_REFERENCE_COUNT> and returns the result.	1790	Calls C<clGetSamplerInfo> with C<OpenCL::SAMPLER_REFERENCE_COUNT> and returns the result.
1502		1791
1503	=item $ctx = $sampler->context	1792	=item $ctx = $sampler->context
1504		1793
1505	Calls C<clGetSamplerInfo> with C<CL_SAMPLER_CONTEXT> and returns the result.	1794	Calls C<clGetSamplerInfo> with C<OpenCL::SAMPLER_CONTEXT> and returns the result.
1506		1795
1507	=item $addressing_mode = $sampler->normalized_coords	1796	=item $addressing_mode = $sampler->normalized_coords
1508		1797
1509	Calls C<clGetSamplerInfo> with C<CL_SAMPLER_NORMALIZED_COORDS> and returns the result.	1798	Calls C<clGetSamplerInfo> with C<OpenCL::SAMPLER_NORMALIZED_COORDS> and returns the result.
1510		1799
1511	=item $filter_mode = $sampler->addressing_mode	1800	=item $filter_mode = $sampler->addressing_mode
1512		1801
1513	Calls C<clGetSamplerInfo> with C<CL_SAMPLER_ADDRESSING_MODE> and returns the result.	1802	Calls C<clGetSamplerInfo> with C<OpenCL::SAMPLER_ADDRESSING_MODE> and returns the result.
1514		1803
1515	=item $boolean = $sampler->filter_mode	1804	=item $boolean = $sampler->filter_mode
1516		1805
1517	Calls C<clGetSamplerInfo> with C<CL_SAMPLER_FILTER_MODE> and returns the result.	1806	Calls C<clGetSamplerInfo> with C<OpenCL::SAMPLER_FILTER_MODE> and returns the result.
1518		1807
1519	=for gengetinfo end sampler	1808	=for gengetinfo end sampler
1520		1809
1521	=back	1810	=back
1522		1811
…		…
1540	not so. So best make sure you don't pass in invalid values.	1829	not so. So best make sure you don't pass in invalid values.
1541		1830
1542	Some implementations fail with C<OpenCL::INVALID_BINARY> when the	1831	Some implementations fail with C<OpenCL::INVALID_BINARY> when the
1543	compilation state is successful but some later stage fails.	1832	compilation state is successful but some later stage fails.
1544		1833
		1834	options: C<-D name>, C<-D name=definition>, C<-I dir>,
		1835	C<-cl-single-precision-constant>, C<-cl-denorms-are-zero>,
		1836	C<-cl-fp32-correctly-rounded-divide-sqrt>, C<-cl-opt-disable>,
		1837	C<-cl-mad-enable>, C<-cl-no-signed-zeros>, C<-cl-unsafe-math-optimizations>,
		1838	C<-cl-finite-math-only>, C<-cl-fast-relaxed-math>,
		1839	C<-w>, C<-Werror>, C<-cl-std=CL1.1/CL1.2>, C<-cl-kernel-arg-info>,
		1840	C<-create-library>, C<-enable-link-options>.
		1841
		1842	build_status: OpenCL::BUILD_SUCCESS, OpenCL::BUILD_NONE,
		1843	OpenCL::BUILD_ERROR, OpenCL::BUILD_IN_PROGRESS.
		1844
1545	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clBuildProgram.html>	1845	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clBuildProgram.html>
1546		1846
1547	=item $program->build_async (\@devices = undef, $options = "", $cb->($program) = undef)	1847	=item $program->build_async (\@devices = undef, $options = "", $cb->($program) = undef)
1548		1848
1549	Similar to C<< ->build >>, except it starts a thread, and never fails (you	1849	Similar to C<< ->build >>, except it starts a thread, and never fails (you
1550	need to check the compilation status form the callback, or by polling).	1850	need to check the compilation status form the callback, or by polling).
1551		1851
		1852	=item $program->compile (\@devices = undef, $options = "", \%headers = undef, $cb->($program) = undef)
		1853
		1854	Compiles the given program for the given devices (or all devices if
		1855	undef). If C<$headers> is given, it must be a hashref with include name =>
		1856	OpenCL::Program pairs.
		1857
		1858	L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clCompileProgram.html>
		1859
1552	=item $packed_value = $program->build_info ($device, $name)	1860	=item $packed_value = $program->build_info ($device, $name)
1553		1861
1554	Similar to C<< $platform->info >>, but returns build info for a previous	1862	Similar to C<< $platform->info >>, but returns build info for a previous
1555	build attempt for the given device.	1863	build attempt for the given device.
1556		1864
		1865	binary_type: OpenCL::PROGRAM_BINARY_TYPE_NONE,
		1866	OpenCL::PROGRAM_BINARY_TYPE_COMPILED_OBJECT,
		1867	OpenCL::PROGRAM_BINARY_TYPE_LIBRARY,
		1868	OpenCL::PROGRAM_BINARY_TYPE_EXECUTABLE.
		1869
1557	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetBuildInfo.html>	1870	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetBuildInfo.html>
1558		1871
1559	=item $kernel = $program->kernel ($function_name)	1872	=item $kernel = $program->kernel ($function_name)
1560		1873
1561	Creates an OpenCL::Kernel object out of the named C<__kernel> function in	1874	Creates an OpenCL::Kernel object out of the named C<__kernel> function in
…		…
1571		1884
1572	=for gengetinfo begin program_build	1885	=for gengetinfo begin program_build
1573		1886
1574	=item $build_status = $program->build_status ($device)	1887	=item $build_status = $program->build_status ($device)
1575		1888
1576	Calls C<clGetProgramBuildInfo> with C<CL_PROGRAM_BUILD_STATUS> and returns the result.	1889	Calls C<clGetProgramBuildInfo> with C<OpenCL::PROGRAM_BUILD_STATUS> and returns the result.
1577		1890
1578	=item $string = $program->build_options ($device)	1891	=item $string = $program->build_options ($device)
1579		1892
1580	Calls C<clGetProgramBuildInfo> with C<CL_PROGRAM_BUILD_OPTIONS> and returns the result.	1893	Calls C<clGetProgramBuildInfo> with C<OpenCL::PROGRAM_BUILD_OPTIONS> and returns the result.
1581		1894
1582	=item $string = $program->build_log ($device)	1895	=item $string = $program->build_log ($device)
1583		1896
1584	Calls C<clGetProgramBuildInfo> with C<CL_PROGRAM_BUILD_LOG> and returns the result.	1897	Calls C<clGetProgramBuildInfo> with C<OpenCL::PROGRAM_BUILD_LOG> and returns the result.
1585		1898
1586	=for gengetinfo end program_build	1899	=for gengetinfo end program_build
1587		1900
1588	=item $packed_value = $program->info ($name)	1901	=item $packed_value = $program->info ($name)
1589		1902
…		…
1593		1906
1594	=for gengetinfo begin program	1907	=for gengetinfo begin program
1595		1908
1596	=item $uint = $program->reference_count	1909	=item $uint = $program->reference_count
1597		1910
1598	Calls C<clGetProgramInfo> with C<CL_PROGRAM_REFERENCE_COUNT> and returns the result.	1911	Calls C<clGetProgramInfo> with C<OpenCL::PROGRAM_REFERENCE_COUNT> and returns the result.
1599		1912
1600	=item $ctx = $program->context	1913	=item $ctx = $program->context
1601		1914
1602	Calls C<clGetProgramInfo> with C<CL_PROGRAM_CONTEXT> and returns the result.	1915	Calls C<clGetProgramInfo> with C<OpenCL::PROGRAM_CONTEXT> and returns the result.
1603		1916
1604	=item $uint = $program->num_devices	1917	=item $uint = $program->num_devices
1605		1918
1606	Calls C<clGetProgramInfo> with C<CL_PROGRAM_NUM_DEVICES> and returns the result.	1919	Calls C<clGetProgramInfo> with C<OpenCL::PROGRAM_NUM_DEVICES> and returns the result.
1607		1920
1608	=item @devices = $program->devices	1921	=item @devices = $program->devices
1609		1922
1610	Calls C<clGetProgramInfo> with C<CL_PROGRAM_DEVICES> and returns the result.	1923	Calls C<clGetProgramInfo> with C<OpenCL::PROGRAM_DEVICES> and returns the result.
1611		1924
1612	=item $string = $program->source	1925	=item $string = $program->source
1613		1926
1614	Calls C<clGetProgramInfo> with C<CL_PROGRAM_SOURCE> and returns the result.	1927	Calls C<clGetProgramInfo> with C<OpenCL::PROGRAM_SOURCE> and returns the result.
1615		1928
1616	=item @ints = $program->binary_sizes	1929	=item @ints = $program->binary_sizes
1617		1930
1618	Calls C<clGetProgramInfo> with C<CL_PROGRAM_BINARY_SIZES> and returns the result.	1931	Calls C<clGetProgramInfo> with C<OpenCL::PROGRAM_BINARY_SIZES> and returns the result.
1619		1932
1620	=for gengetinfo end program	1933	=for gengetinfo end program
1621		1934
1622	=item @blobs = $program->binaries	1935	=item @blobs = $program->binaries
1623		1936
…		…
1644		1957
1645	=for gengetinfo begin kernel	1958	=for gengetinfo begin kernel
1646		1959
1647	=item $string = $kernel->function_name	1960	=item $string = $kernel->function_name
1648		1961
1649	Calls C<clGetKernelInfo> with C<CL_KERNEL_FUNCTION_NAME> and returns the result.	1962	Calls C<clGetKernelInfo> with C<OpenCL::KERNEL_FUNCTION_NAME> and returns the result.
1650		1963
1651	=item $uint = $kernel->num_args	1964	=item $uint = $kernel->num_args
1652		1965
1653	Calls C<clGetKernelInfo> with C<CL_KERNEL_NUM_ARGS> and returns the result.	1966	Calls C<clGetKernelInfo> with C<OpenCL::KERNEL_NUM_ARGS> and returns the result.
1654		1967
1655	=item $uint = $kernel->reference_count	1968	=item $uint = $kernel->reference_count
1656		1969
1657	Calls C<clGetKernelInfo> with C<CL_KERNEL_REFERENCE_COUNT> and returns the result.	1970	Calls C<clGetKernelInfo> with C<OpenCL::KERNEL_REFERENCE_COUNT> and returns the result.
1658		1971
1659	=item $ctx = $kernel->context	1972	=item $ctx = $kernel->context
1660		1973
1661	Calls C<clGetKernelInfo> with C<CL_KERNEL_CONTEXT> and returns the result.	1974	Calls C<clGetKernelInfo> with C<OpenCL::KERNEL_CONTEXT> and returns the result.
1662		1975
1663	=item $program = $kernel->program	1976	=item $program = $kernel->program
1664		1977
1665	Calls C<clGetKernelInfo> with C<CL_KERNEL_PROGRAM> and returns the result.	1978	Calls C<clGetKernelInfo> with C<OpenCL::KERNEL_PROGRAM> and returns the result.
1666		1979
1667	=for gengetinfo end kernel	1980	=for gengetinfo end kernel
1668		1981
1669	=item $packed_value = $kernel->work_group_info ($device, $name)	1982	=item $packed_value = $kernel->work_group_info ($device, $name)
1670		1983
1671	See C<< $platform->info >> for details.	1984	See C<< $platform->info >> for details.
1672		1985
1673	The reason this method is not called C<info> is that there already is an
1674	C<< ->info >> method.
1675
1676	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetKernelWorkGroupInfo.html>	1986	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetKernelWorkGroupInfo.html>
1677		1987
1678	=for gengetinfo begin kernel_work_group	1988	=for gengetinfo begin kernel_work_group
1679		1989
1680	=item $int = $kernel->work_group_size ($device)	1990	=item $int = $kernel->work_group_size ($device)
1681		1991
1682	Calls C<clGetKernelWorkGroupInfo> with C<CL_KERNEL_WORK_GROUP_SIZE> and returns the result.	1992	Calls C<clGetKernelWorkGroupInfo> with C<OpenCL::KERNEL_WORK_GROUP_SIZE> and returns the result.
1683		1993
1684	=item @ints = $kernel->compile_work_group_size ($device)	1994	=item @ints = $kernel->compile_work_group_size ($device)
1685		1995
1686	Calls C<clGetKernelWorkGroupInfo> with C<CL_KERNEL_COMPILE_WORK_GROUP_SIZE> and returns the result.	1996	Calls C<clGetKernelWorkGroupInfo> with C<OpenCL::KERNEL_COMPILE_WORK_GROUP_SIZE> and returns the result.
1687		1997
1688	=item $ulong = $kernel->local_mem_size ($device)	1998	=item $ulong = $kernel->local_mem_size ($device)
1689		1999
1690	Calls C<clGetKernelWorkGroupInfo> with C<CL_KERNEL_LOCAL_MEM_SIZE> and returns the result.	2000	Calls C<clGetKernelWorkGroupInfo> with C<OpenCL::KERNEL_LOCAL_MEM_SIZE> and returns the result.
1691		2001
1692	=item $int = $kernel->preferred_work_group_size_multiple ($device)	2002	=item $int = $kernel->preferred_work_group_size_multiple ($device)
1693		2003
1694	Calls C<clGetKernelWorkGroupInfo> with C<CL_KERNEL_PREFERRED_WORK_GROUP_SIZE_MULTIPLE> and returns the result.	2004	Calls C<clGetKernelWorkGroupInfo> with C<OpenCL::KERNEL_PREFERRED_WORK_GROUP_SIZE_MULTIPLE> and returns the result.
1695		2005
1696	=item $ulong = $kernel->private_mem_size ($device)	2006	=item $ulong = $kernel->private_mem_size ($device)
1697		2007
1698	Calls C<clGetKernelWorkGroupInfo> with C<CL_KERNEL_PRIVATE_MEM_SIZE> and returns the result.	2008	Calls C<clGetKernelWorkGroupInfo> with C<OpenCL::KERNEL_PRIVATE_MEM_SIZE> and returns the result.
1699		2009
1700	=for gengetinfo end kernel_work_group	2010	=for gengetinfo end kernel_work_group
		2011
		2012	=item $packed_value = $kernel->arg_info ($idx, $name)
		2013
		2014	See C<< $platform->info >> for details.
		2015
		2016	L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clGetKernelArgInfo.html>
		2017
		2018	=for gengetinfo begin kernel_arg
		2019
		2020	=item $kernel_arg_address_qualifier = $kernel->arg_address_qualifier ($idx)
		2021
		2022	Calls C<clGetKernelArgInfo> with C<OpenCL::KERNEL_ARG_ADDRESS_QUALIFIER> and returns the result.
		2023
		2024	=item $kernel_arg_access_qualifier = $kernel->arg_access_qualifier ($idx)
		2025
		2026	Calls C<clGetKernelArgInfo> with C<OpenCL::KERNEL_ARG_ACCESS_QUALIFIER> and returns the result.
		2027
		2028	=item $string = $kernel->arg_type_name ($idx)
		2029
		2030	Calls C<clGetKernelArgInfo> with C<OpenCL::KERNEL_ARG_TYPE_NAME> and returns the result.
		2031
		2032	=item $kernel_arg_type_qualifier = $kernel->arg_type_qualifier ($idx)
		2033
		2034	Calls C<clGetKernelArgInfo> with C<OpenCL::KERNEL_ARG_TYPE_QUALIFIER> and returns the result.
		2035
		2036	=item $string = $kernel->arg_name ($idx)
		2037
		2038	Calls C<clGetKernelArgInfo> with C<OpenCL::KERNEL_ARG_NAME> and returns the result.
		2039
		2040	=for gengetinfo end kernel_arg
1701		2041
1702	=item $kernel->setf ($format, ...)	2042	=item $kernel->setf ($format, ...)
1703		2043
1704	Sets the arguments of a kernel. Since OpenCL 1.1 doesn't have a generic	2044	Sets the arguments of a kernel. Since OpenCL 1.1 doesn't have a generic
1705	way to set arguments (and with OpenCL 1.2 it might be rather slow), you	2045	way to set arguments (and with OpenCL 1.2 it might be rather slow), you
…		…
1817		2157
1818	=for gengetinfo begin event	2158	=for gengetinfo begin event
1819		2159
1820	=item $queue = $event->command_queue	2160	=item $queue = $event->command_queue
1821		2161
1822	Calls C<clGetEventInfo> with C<CL_EVENT_COMMAND_QUEUE> and returns the result.	2162	Calls C<clGetEventInfo> with C<OpenCL::EVENT_COMMAND_QUEUE> and returns the result.
1823		2163
1824	=item $command_type = $event->command_type	2164	=item $command_type = $event->command_type
1825		2165
1826	Calls C<clGetEventInfo> with C<CL_EVENT_COMMAND_TYPE> and returns the result.	2166	Calls C<clGetEventInfo> with C<OpenCL::EVENT_COMMAND_TYPE> and returns the result.
1827		2167
1828	=item $uint = $event->reference_count	2168	=item $uint = $event->reference_count
1829		2169
1830	Calls C<clGetEventInfo> with C<CL_EVENT_REFERENCE_COUNT> and returns the result.	2170	Calls C<clGetEventInfo> with C<OpenCL::EVENT_REFERENCE_COUNT> and returns the result.
1831		2171
1832	=item $uint = $event->command_execution_status	2172	=item $uint = $event->command_execution_status
1833		2173
1834	Calls C<clGetEventInfo> with C<CL_EVENT_COMMAND_EXECUTION_STATUS> and returns the result.	2174	Calls C<clGetEventInfo> with C<OpenCL::EVENT_COMMAND_EXECUTION_STATUS> and returns the result.
1835		2175
1836	=item $ctx = $event->context	2176	=item $ctx = $event->context
1837		2177
1838	Calls C<clGetEventInfo> with C<CL_EVENT_CONTEXT> and returns the result.	2178	Calls C<clGetEventInfo> with C<OpenCL::EVENT_CONTEXT> and returns the result.
1839		2179
1840	=for gengetinfo end event	2180	=for gengetinfo end event
1841		2181
1842	=item $packed_value = $ev->profiling_info ($name)	2182	=item $packed_value = $ev->profiling_info ($name)
1843		2183
…		…
1850		2190
1851	=for gengetinfo begin profiling	2191	=for gengetinfo begin profiling
1852		2192
1853	=item $ulong = $event->profiling_command_queued	2193	=item $ulong = $event->profiling_command_queued
1854		2194
1855	Calls C<clGetEventProfilingInfo> with C<CL_PROFILING_COMMAND_QUEUED> and returns the result.	2195	Calls C<clGetEventProfilingInfo> with C<OpenCL::PROFILING_COMMAND_QUEUED> and returns the result.
1856		2196
1857	=item $ulong = $event->profiling_command_submit	2197	=item $ulong = $event->profiling_command_submit
1858		2198
1859	Calls C<clGetEventProfilingInfo> with C<CL_PROFILING_COMMAND_SUBMIT> and returns the result.	2199	Calls C<clGetEventProfilingInfo> with C<OpenCL::PROFILING_COMMAND_SUBMIT> and returns the result.
1860		2200
1861	=item $ulong = $event->profiling_command_start	2201	=item $ulong = $event->profiling_command_start
1862		2202
1863	Calls C<clGetEventProfilingInfo> with C<CL_PROFILING_COMMAND_START> and returns the result.	2203	Calls C<clGetEventProfilingInfo> with C<OpenCL::PROFILING_COMMAND_START> and returns the result.
1864		2204
1865	=item $ulong = $event->profiling_command_end	2205	=item $ulong = $event->profiling_command_end
1866		2206
1867	Calls C<clGetEventProfilingInfo> with C<CL_PROFILING_COMMAND_END> and returns the result.	2207	Calls C<clGetEventProfilingInfo> with C<OpenCL::PROFILING_COMMAND_END> and returns the result.
1868		2208
1869	=for gengetinfo end profiling	2209	=for gengetinfo end profiling
1870		2210
1871	=back	2211	=back
1872		2212
…		…
1879	=item $ev->set_status ($execution_status)	2219	=item $ev->set_status ($execution_status)
1880		2220
1881	Sets the execution status of the user event. Can only be called once,	2221	Sets the execution status of the user event. Can only be called once,
1882	either with OpenCL::COMPLETE or a negative number as status.	2222	either with OpenCL::COMPLETE or a negative number as status.
1883		2223
		2224	execution_status: OpenCL::COMPLETE or a negative integer.
		2225
1884	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clSetUserEventStatus.html>	2226	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clSetUserEventStatus.html>
1885		2227
1886	=back	2228	=back
		2229
		2230	=head2 THE OpenCL::Mapped CLASS
		2231
		2232	This class represents objects mapped into host memory. They are
		2233	represented by a blessed string scalar. The string data is the mapped
		2234	memory area, that is, if you read or write it, then the mapped object is
		2235	accessed directly.
		2236
		2237	You must only ever use operations that modify the string in-place - for
		2238	example, a C<substr> that doesn't change the length, or maybe a regex that
		2239	doesn't change the length. Any other operation might cause the data to be
		2240	copied.
		2241
		2242	When the object is destroyed it will enqueue an implicit unmap operation
		2243	on the queue that was used to create it.
		2244
		2245	Keep in mind that you I<need> to unmap (or destroy) mapped objects before
		2246	OpenCL sees the changes, even if some implementations don't need this
		2247	sometimes.
		2248
		2249	Example, replace the first two floats in the mapped buffer by 1 and 2.
		2250
		2251	my $mapped = $queue->map_buffer ($buf, ...
		2252	$mapped->event->wait; # make sure it's there
		2253
		2254	# now replace first 8 bytes by new data, which is exactly 8 bytes long
		2255	# we blindly assume device endianness to equal host endianness
		2256	# (and of course, we assume iee 754 single precision floats :)
		2257	substr $$mapped, 0, 8, pack "f*", 1, 2;
		2258
		2259	=over 4
		2260
		2261	=item $ev = $mapped->unmap ($wait_events...)
		2262
		2263	Unmaps the mapped memory object, using the queue originally used to create
		2264	it, quite similarly to C<< $queue->unmap ($mapped, ...) >>.
		2265
		2266	=item $bool = $mapped->mapped
		2267
		2268	Returns whether the object is still mapped - true before an C<unmap> is
		2269	enqueued, false afterwards.
		2270
		2271	=item $ev = $mapped->event
		2272
		2273	Return the event object associated with the mapped object. Initially, this
		2274	will be the event object created when mapping the object, and after an
		2275	unmap, this will be the event object that the unmap operation created.
		2276
		2277	=item $mapped->wait
		2278
		2279	Same as C<< $mapped->event->wait >> - makes sure no operations on this
		2280	mapped object are outstanding.
		2281
		2282	=item $bytes = $mapped->size
		2283
		2284	Returns the size of the mapped area, in bytes. Same as C<length $$mapped>.
		2285
		2286	=item $ptr = $mapped->ptr
		2287
		2288	Returns the raw memory address of the mapped area.
		2289
		2290	=item $mapped->set ($offset, $data)
		2291
		2292	Replaces the data at the given C<$offset> in the memory area by the new
		2293	C<$data>. This method is safer than direct manipulation of C<$mapped>
		2294	because it does bounds-checking, but also slower.
		2295
		2296	=item $data = $mapped->get ($offset, $length)
		2297
		2298	Returns (without copying) a scalar representing the data at the given
		2299	C<$offset> and C<$length> in the mapped memory area. This is the same as
		2300	the following substr, except much slower;
		2301
		2302	$data = substr $$mapped, $offset, $length
		2303
		2304	=cut
		2305
		2306	sub OpenCL::Mapped::get {
		2307	substr ${$_[0]}, $_[1], $_[2]
		2308	}
		2309
		2310	=back
		2311
		2312	=head2 THE OpenCL::MappedBuffer CLASS
		2313
		2314	This is a subclass of OpenCL::Mapped, representing mapped buffers.
		2315
		2316	=head2 THE OpenCL::MappedImage CLASS
		2317
		2318	This is a subclass of OpenCL::Mapped, representing mapped images.
		2319
		2320	=over 4
		2321
		2322	=item $bytes = $mapped->row_pitch
		2323
		2324	=item $bytes = $mapped->slice_pitch
		2325
		2326	Return the row or slice pitch of the image that has been mapped.
		2327
		2328	=back
		2329
1887		2330
1888	=cut	2331	=cut
1889		2332
1890	1;	2333	1;
1891		2334

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Comparing OpenCL/OpenCL.pm (file contents): Revision 1.64 by root, Mon Apr 30 23:12:43 2012 UTC vs. Revision 1.78 by root, Sat May 5 13:07:19 2012 UTC

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Comparing OpenCL/OpenCL.pm (file contents):
Revision 1.64 by root, Mon Apr 30 23:12:43 2012 UTC vs.
Revision 1.78 by root, Sat May 5 13:07:19 2012 UTC