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Comparing OpenCL/OpenCL.pm (file contents):
Revision 1.60 by root, Wed Apr 25 21:48:44 2012 UTC vs.
Revision 1.87 by root, Mon May 7 01:01:33 2012 UTC

…		…
28	specific device ("compiling and linking"), also binary programs. For each	28	specific device ("compiling and linking"), also binary programs. For each
29	kernel function in a program you can then create an OpenCL::Kernel object	29	kernel function in a program you can then create an OpenCL::Kernel object
30	which represents basically a function call with argument values.	30	which represents basically a function call with argument values.
31		31
32	OpenCL::Memory objects of various flavours: OpenCL::Buffer objects (flat	32	OpenCL::Memory objects of various flavours: OpenCL::Buffer objects (flat
33	memory areas, think arrays or structs) and OpenCL::Image objects (think 2d	33	memory areas, think arrays or structs) and OpenCL::Image objects (think 2D
34	or 3d array) for bulk data and input and output for kernels.	34	or 3D array) for bulk data and input and output for kernels.
35		35
36	OpenCL::Sampler objects, which are kind of like texture filter modes in	36	OpenCL::Sampler objects, which are kind of like texture filter modes in
37	OpenGL.	37	OpenGL.
38		38
39	OpenCL::Queue objects - command queues, which allow you to submit memory	39	OpenCL::Queue objects - command queues, which allow you to submit memory
…		…
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
…		…
210		211
211	# wait for the last event to complete	212	# wait for the last event to complete
212	$ev->wait;	213	$ev->wait;
213		214
214	=head2 Use the OpenGL module to share a texture between OpenCL and OpenGL and draw some julia	215	=head2 Use the OpenGL module to share a texture between OpenCL and OpenGL and draw some julia
215	set tunnel effect.	216	set flight effect.
216		217
217	This is quite a long example to get you going.	218	This is quite a long example to get you going - you can also download it
		219	from L<http://cvs.schmorp.de/OpenCL/examples/juliaflight>.
218		220
219	use OpenGL ":all";	221	use OpenGL ":all";
220	use OpenCL;	222	use OpenCL;
221		223
		224	my $S = $ARGV[0] || 256; # window/texture size, smaller is faster
		225
222	# open a window and create a gl texture	226	# open a window and create a gl texture
223	OpenGL::glpOpenWindow width => 256, height => 256;	227	OpenGL::glpOpenWindow width => $S, height => $S;
224	my $texid = glGenTextures_p 1;	228	my $texid = glGenTextures_p 1;
225	glBindTexture GL_TEXTURE_2D, $texid;	229	glBindTexture GL_TEXTURE_2D, $texid;
226	glTexImage2D_c GL_TEXTURE_2D, 0, GL_RGBA8, 256, 256, 0, GL_RGBA, GL_UNSIGNED_BYTE, 0;	230	glTexImage2D_c GL_TEXTURE_2D, 0, GL_RGBA8, $S, $S, 0, GL_RGBA, GL_UNSIGNED_BYTE, 0;
227		231
228	# find and use the first opencl device that let's us get a shared opengl context	232	# find and use the first opencl device that let's us get a shared opengl context
229	my $platform;	233	my $platform;
230	my $dev;	234	my $dev;
231	my $ctx;	235	my $ctx;
…		…
250	# now the boring opencl code	254	# now the boring opencl code
251	my $src = <<EOF;	255	my $src = <<EOF;
252	kernel void	256	kernel void
253	juliatunnel (write_only image2d_t img, float time)	257	juliatunnel (write_only image2d_t img, float time)
254	{	258	{
255	float2 p = (float2)(get_global_id (0), get_global_id (1)) / 256.f * 2.f - 1.f;	259	int2 xy = (int2)(get_global_id (0), get_global_id (1));
		260	float2 p = convert_float2 (xy) / $S.f * 2.f - 1.f;
256		261
257	float2 m = (float2)(1.f, p.y) / fabs (p.x);	262	float2 m = (float2)(1.f, p.y) / fabs (p.x); // tunnel
258	m.x = fabs (fmod (m.x + time * 0.05f, 4.f)) - 2.f;	263	m.x = fabs (fmod (m.x + time * 0.05f, 4.f) - 2.f);
259		264
260	float2 z = m;	265	float2 z = m;
261	float2 c = (float2)(sin (time * 0.05005), cos (time * 0.06001));	266	float2 c = (float2)(sin (time * 0.01133f), cos (time * 0.02521f));
262		267
263	for (int i = 0; i < 25 && dot (z, z) < 4.f; ++i)	268	for (int i = 0; i < 25 && dot (z, z) < 4.f; ++i) // standard julia
264	z = (float2)(z.x * z.x - z.y * z.y, 2.f * z.x * z.y) + c;	269	z = (float2)(z.x * z.x - z.y * z.y, 2.f * z.x * z.y) + c;
265		270
266	float3 colour = (float3)(z.x, z.y, z.x * z.y);	271	float3 colour = (float3)(z.x, z.y, atan2 (z.y, z.x));
267	write_imagef (img, (int2)(get_global_id (0), get_global_id (1)), (float4)(colour * p.x * p.x, 1.));	272	write_imagef (img, xy, (float4)(colour * p.x * p.x, 1.));
268	}	273	}
269	EOF	274	EOF
270		275
271	my $prog = $ctx->build_program ($src);	276	my $prog = $ctx->build_program ($src);
272	my $kernel = $prog->kernel ("juliatunnel");	277	my $kernel = $prog->kernel ("juliatunnel");
…		…
276	for (my $time; ; ++$time) {	281	for (my $time; ; ++$time) {
277	# acquire objects from opengl	282	# acquire objects from opengl
278	$queue->acquire_gl_objects ([$tex]);	283	$queue->acquire_gl_objects ([$tex]);
279		284
280	# configure and run our kernel	285	# configure and run our kernel
281	$kernel->set_image2d (0, $tex);	286	$kernel->setf ("mf", $tex, $time*2); # mf = memory object, float
282	$kernel->set_float (1, $time);
283	$queue->nd_range_kernel ($kernel, undef, [256, 256], undef);	287	$queue->nd_range_kernel ($kernel, undef, [$S, $S], undef);
284		288
285	# release objects to opengl again	289	# release objects to opengl again
286	$queue->release_gl_objects ([$tex]);	290	$queue->release_gl_objects ([$tex]);
287		291
288	# wait	292	# wait
…		…
302	glXSwapBuffers;	306	glXSwapBuffers;
303		307
304	select undef, undef, undef, 1/60;	308	select undef, undef, undef, 1/60;
305	}	309	}
306		310
		311	=head2 How to modify the previous example to not rely on GL sharing.
		312
		313	For those poor souls with only a sucky CPU OpenCL implementation, you
		314	currently have to read the image into some perl scalar, and then modify a
		315	texture or use glDrawPixels or so).
		316
		317	First, when you don't need gl sharing, you can create the context much simpler:
		318
		319	$ctx = $platform->context (undef, [$dev])
		320
		321	To use a texture, you would modify the above example by creating an
		322	OpenCL::Image manually instead of deriving it from a texture:
		323
		324	my $tex = $ctx->image2d (OpenCL::MEM_WRITE_ONLY, OpenCL::RGBA, OpenCL::UNORM_INT8, $S, $S);
		325
		326	And in the draw loop, intead of acquire_gl_objects/release_gl_objects, you
		327	would read the image2d after the kernel has written it:
		328
		329	$queue->read_image ($tex, 0, 0, 0, 0, $S, $S, 1, 0, 0, my $data);
		330
		331	And then you would upload the pixel data to the texture (or use glDrawPixels):
		332
		333	glTexSubImage2D_s GL_TEXTURE_2D, 0, 0, 0, $S, $S, GL_RGBA, GL_UNSIGNED_BYTE, $data;
		334
		335	The fully modified example can be found at
		336	L<http://cvs.schmorp.de/OpenCL/examples/juliaflight-nosharing>.
		337
		338	=head2 Julia sets look soooo 80ies.
		339
		340	Then colour them differently, e.g. using orbit traps! Replace the loop and
		341	colour calculation from the previous examples by this:
		342
		343	float2 dm = (float2)(1.f, 1.f);
		344
		345	for (int i = 0; i < 25; ++i)
		346	{
		347	z = (float2)(z.x * z.x - z.y * z.y, 2.f * z.x * z.y) + c;
		348	dm = fmin (dm, (float2)(fabs (dot (z, z) - 1.f), fabs (z.x - 1.f)));
		349	}
		350
		351	float3 colour = (float3)(dm.x * dm.y, dm.x * dm.y, dm.x);
		352
		353	Also try C<-10.f> instead of C<-1.f>.
		354
307	=head1 DOCUMENTATION	355	=head1 DOCUMENTATION
308		356
309	=head2 BASIC CONVENTIONS	357	=head2 BASIC CONVENTIONS
310		358
311	This is not a one-to-one C-style translation of OpenCL to Perl - instead	359	This is not a one-to-one C-style translation of OpenCL to Perl - instead
…		…
340		388
341	=item * When enqueuing commands, if the enqueue method is called in void	389	=item * When enqueuing commands, if the enqueue method is called in void
342	context, no event is created. In all other contexts an event is returned	390	context, no event is created. In all other contexts an event is returned
343	by the method.	391	by the method.
344		392
345	=item * This module expects all functions to return C<CL_SUCCESS>. If any	393	=item * This module expects all functions to return C<OpenCL::SUCCESS>. If any
346	other status is returned the function will throw an exception, so you	394	other status is returned the function will throw an exception, so you
347	don't normally have to to any error checking.	395	don't normally have to to any error checking.
348		396
349	=back	397	=back
		398
		399	=head2 CONSTANTS
		400
		401	All C<CL_xxx> constants that this module supports are always available
		402	in the C<OpenCL> namespace as C<OpenCL::xxx> (i.e. without the C<CL_>
		403	prefix). Constants which are not defined in the header files used during
		404	compilation, or otherwise are not available, will have the value C<0> (in
		405	some cases, this will make them indistinguishable from real constants,
		406	sorry).
		407
		408	The latest version of this module knows and exports the constants
		409	listed in L<http://cvs.schmorp.de/OpenCL/constiv.h>.
		410
		411	=head2 OPENCL 1.1 VS. OPENCL 1.2
		412
		413	This module supports both OpenCL version 1.1 and 1.2, although the OpenCL
		414	1.2 interface hasn't been tested much for lack of availability of an
		415	actual implementation.
		416
		417	Every function or method in this manual page that interfaces to a
		418	particular OpenCL function has a link to the its C manual page.
		419
		420	If the link contains a F<1.1>, then this function is an OpenCL 1.1
		421	function. Most but not all also exist in OpenCL 1.2, and this module
		422	tries to emulate the missing ones for you, when told to do so at
		423	compiletime. You can check whether a function was removed in OpenCL 1.2 by
		424	replacing the F<1.1> component in the URL by F<1.2>.
		425
		426	If the link contains a F<1.2>, then this is a OpenCL 1.2-only
		427	function. Even if the module was compiled with OpenCL 1.2 header files
		428	and has an 1.2 OpenCL library, calling such a function on a platform that
		429	doesn't implement 1.2 causes undefined behaviour, usually a crash (But
		430	this is not guaranteed).
		431
		432	You can find out whether this module was compiled to prefer 1.1
		433	functionality by ooking at C<OpenCL::PREFER_1_1> - if it is true, then
		434	1.1 functions generally are implemented using 1.1 OpenCL functions. If it
		435	is false, then 1.1 functions missing from 1.2 are emulated by calling 1.2
		436	fucntions.
		437
		438	This is a somewhat sorry state of affairs, but the Khronos group choose to
		439	make every release of OpenCL source and binary incompatible with previous
		440	releases.
350		441
351	=head2 PERL AND OPENCL TYPES	442	=head2 PERL AND OPENCL TYPES
352		443
353	This handy(?) table lists OpenCL types and their perl, PDL and pack/unpack	444	This handy(?) table lists OpenCL types and their perl, PDL and pack/unpack
354	format equivalents:	445	format equivalents:
…		…
386	OpenCL can generate a number of (potentially) asynchronous events, for	477	OpenCL can generate a number of (potentially) asynchronous events, for
387	example, after compiling a program, to signal a context-related error or,	478	example, after compiling a program, to signal a context-related error or,
388	perhaps most important, to signal completion of queued jobs (by setting	479	perhaps most important, to signal completion of queued jobs (by setting
389	callbacks on OpenCL::Event objects).	480	callbacks on OpenCL::Event objects).
390		481
		482	The OpenCL module converts all these callbacks into events - you can
		483	still register callbacks, but they are not executed when your OpenCL
		484	implementation calls the actual callback, but only later. Therefore, none
		485	of the limitations of OpenCL callbacks apply to the perl implementation:
		486	it is perfectly safe to make blocking operations from event callbacks, and
		487	enqueued operations don't need to be flushed.
		488
391	To facilitate this, this module maintains an event queue - each	489	To facilitate this, this module maintains an event queue - each
392	time an asynchronous event happens, it is queued, and perl will be	490	time an asynchronous event happens, it is queued, and perl will be
393	interrupted. This is implemented via the L<Async::Interrupt> module. In	491	interrupted. This is implemented via the L<Async::Interrupt> module. In
394	addition, this module has L<AnyEvent> support, so it can seamlessly	492	addition, this module has L<AnyEvent> support, so it can seamlessly
395	integrate itself into many event loops.	493	integrate itself into many event loops.
396		494
397	Since this module is a bit hard to understand, here are some case examples:	495	Since L<Async::Interrupt> is a bit hard to understand, here are some case examples:
398		496
399	=head3 Don't use callbacks.	497	=head3 Don't use callbacks.
400		498
401	When your program never uses any callbacks, then there will never be any	499	When your program never uses any callbacks, then there will never be any
402	notifications you need to take care of, and therefore no need to worry	500	notifications you need to take care of, and therefore no need to worry
…		…
493	=cut	591	=cut
494		592
495	package OpenCL;	593	package OpenCL;
496		594
497	use common::sense;	595	use common::sense;
		596	use Carp ();
498	use Async::Interrupt ();	597	use Async::Interrupt ();
499		598
500	our $POLL_FUNC; # set by XS	599	our $POLL_FUNC; # set by XS
501		600
502	BEGIN {	601	BEGIN {
503	our $VERSION = '0.97';	602	our $VERSION = '1.01';
504		603
505	require XSLoader;	604	require XSLoader;
506	XSLoader::load (__PACKAGE__, $VERSION);	605	XSLoader::load (__PACKAGE__, $VERSION);
507		606
508	@OpenCL::Platform::ISA =	607	@OpenCL::Platform::ISA =
…		…
513	@OpenCL::Sampler::ISA =	612	@OpenCL::Sampler::ISA =
514	@OpenCL::Program::ISA =	613	@OpenCL::Program::ISA =
515	@OpenCL::Kernel::ISA =	614	@OpenCL::Kernel::ISA =
516	@OpenCL::Event::ISA = OpenCL::Object::;	615	@OpenCL::Event::ISA = OpenCL::Object::;
517		616
		617	@OpenCL::SubDevice::ISA = OpenCL::Device::;
		618
518	@OpenCL::Buffer::ISA =	619	@OpenCL::Buffer::ISA =
519	@OpenCL::Image::ISA = OpenCL::Memory::;	620	@OpenCL::Image::ISA = OpenCL::Memory::;
520		621
521	@OpenCL::BufferObj::ISA = OpenCL::Buffer::;	622	@OpenCL::BufferObj::ISA = OpenCL::Buffer::;
522		623
…		…
526	@OpenCL::Image1D::ISA =	627	@OpenCL::Image1D::ISA =
527	@OpenCL::Image1DArray::ISA =	628	@OpenCL::Image1DArray::ISA =
528	@OpenCL::Image1DBuffer::ISA = OpenCL::Image::;	629	@OpenCL::Image1DBuffer::ISA = OpenCL::Image::;
529		630
530	@OpenCL::UserEvent::ISA = OpenCL::Event::;	631	@OpenCL::UserEvent::ISA = OpenCL::Event::;
		632
		633	@OpenCL::MappedBuffer::ISA =
		634	@OpenCL::MappedImage::ISA = OpenCL::Mapped::;
531	}	635	}
532		636
533	=head2 THE OpenCL PACKAGE	637	=head2 THE OpenCL PACKAGE
534		638
535	=over 4	639	=over 4
…		…
537	=item $int = OpenCL::errno	641	=item $int = OpenCL::errno
538		642
539	The last error returned by a function - it's only valid after an error occured	643	The last error returned by a function - it's only valid after an error occured
540	and before calling another OpenCL function.	644	and before calling another OpenCL function.
541		645
542	=item $str = OpenCL::err2str $errval	646	=item $str = OpenCL::err2str [$errval]
543		647
544	Comverts an error value into a human readable string.	648	Converts an error value into a human readable string. If no error value is
		649	given, then the last error will be used (as returned by OpenCL::errno).
		650
		651	The latest version of this module knows the error constants
		652	listed in L<http://cvs.schmorp.de/OpenCL/errstr.h>.
545		653
546	=item $str = OpenCL::enum2str $enum	654	=item $str = OpenCL::enum2str $enum
547		655
548	Converts most enum values (of parameter names, image format constants,	656	Converts most enum values (of parameter names, image format constants,
549	object types, addressing and filter modes, command types etc.) into a	657	object types, addressing and filter modes, command types etc.) into a
550	human readable string. When confronted with some random integer it can be	658	human readable string. When confronted with some random integer it can be
551	very helpful to pass it through this function to maybe get some readable	659	very helpful to pass it through this function to maybe get some readable
552	string out of it.	660	string out of it.
553		661
		662	The latest version of this module knows the enumaration constants
		663	listed in L<http://cvs.schmorp.de/OpenCL/enumstr.h>.
		664
554	=item @platforms = OpenCL::platforms	665	=item @platforms = OpenCL::platforms
555		666
556	Returns all available OpenCL::Platform objects.	667	Returns all available OpenCL::Platform objects.
557		668
558	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetPlatformIDs.html>	669	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetPlatformIDs.html>
559		670
560	=item $ctx = OpenCL::context_from_type $properties, $type = OpenCL::DEVICE_TYPE_DEFAULT, $callback->($err, $pvt) = $print_stderr	671	=item $ctx = OpenCL::context_from_type $properties, $type = OpenCL::DEVICE_TYPE_DEFAULT, $callback->($err, $pvt) = $print_stderr
561		672
562	Tries to create a context from a default device and platform type - never worked for me.	673	Tries to create a context from a default device and platform type - never worked for me.
		674	Consider using C<< $platform->context_from_type >> instead.
		675
		676	type: OpenCL::DEVICE_TYPE_DEFAULT, OpenCL::DEVICE_TYPE_CPU, OpenCL::DEVICE_TYPE_GPU,
		677	OpenCL::DEVICE_TYPE_ACCELERATOR, OpenCL::DEVICE_TYPE_CUSTOM, OpenCL::DEVICE_TYPE_ALL.
563		678
564	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateContextFromType.html>	679	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateContextFromType.html>
565		680
566	=item $ctx = OpenCL::context $properties, \@devices, $callback->($err, $pvt) = $print_stderr)	681	=item $ctx = OpenCL::context $properties, \@devices, $callback->($err, $pvt) = $print_stderr)
567		682
568	Create a new OpenCL::Context object using the given device object(s). This	683	Create a new OpenCL::Context object using the given device object(s).
569	function isn't implemented yet, use C<< $platform->context >> instead.	684	Consider using C<< $platform->context >> instead.
570		685
571	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateContext.html>	686	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateContext.html>
572		687
573	=item OpenCL::wait_for_events $wait_events...	688	=item OpenCL::wait_for_events $wait_events...
574		689
…		…
655	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateContextFromType.html>	770	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateContextFromType.html>
656		771
657	=item $ctx = $platform->context ($properties, \@devices, $callback->($err, $pvt) = $print_stderr)	772	=item $ctx = $platform->context ($properties, \@devices, $callback->($err, $pvt) = $print_stderr)
658		773
659	Create a new OpenCL::Context object using the given device object(s)- a	774	Create a new OpenCL::Context object using the given device object(s)- a
660	CL_CONTEXT_PLATFORM property is supplied automatically.	775	OpenCL::CONTEXT_PLATFORM property is supplied automatically.
661		776
662	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateContext.html>	777	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateContext.html>
663		778
664	=item $packed_value = $platform->info ($name)	779	=item $packed_value = $platform->info ($name)
665		780
…		…
681		796
682	=for gengetinfo begin platform	797	=for gengetinfo begin platform
683		798
684	=item $string = $platform->profile	799	=item $string = $platform->profile
685		800
686	Calls C<clGetPlatformInfo> with C<CL_PLATFORM_PROFILE> and returns the result.	801	Calls C<clGetPlatformInfo> with C<OpenCL::PLATFORM_PROFILE> and returns the result.
687		802
688	=item $string = $platform->version	803	=item $string = $platform->version
689		804
690	Calls C<clGetPlatformInfo> with C<CL_PLATFORM_VERSION> and returns the result.	805	Calls C<clGetPlatformInfo> with C<OpenCL::PLATFORM_VERSION> and returns the result.
691		806
692	=item $string = $platform->name	807	=item $string = $platform->name
693		808
694	Calls C<clGetPlatformInfo> with C<CL_PLATFORM_NAME> and returns the result.	809	Calls C<clGetPlatformInfo> with C<OpenCL::PLATFORM_NAME> and returns the result.
695		810
696	=item $string = $platform->vendor	811	=item $string = $platform->vendor
697		812
698	Calls C<clGetPlatformInfo> with C<CL_PLATFORM_VENDOR> and returns the result.	813	Calls C<clGetPlatformInfo> with C<OpenCL::PLATFORM_VENDOR> and returns the result.
699		814
700	=item $string = $platform->extensions	815	=item $string = $platform->extensions
701		816
702	Calls C<clGetPlatformInfo> with C<CL_PLATFORM_EXTENSIONS> and returns the result.	817	Calls C<clGetPlatformInfo> with C<OpenCL::PLATFORM_EXTENSIONS> and returns the result.
703		818
704	=for gengetinfo end platform	819	=for gengetinfo end platform
705		820
706	=back	821	=back
707		822
…		…
711		826
712	=item $packed_value = $device->info ($name)	827	=item $packed_value = $device->info ($name)
713		828
714	See C<< $platform->info >> for details.	829	See C<< $platform->info >> for details.
715		830
		831	type: OpenCL::DEVICE_TYPE_DEFAULT, OpenCL::DEVICE_TYPE_CPU,
		832	OpenCL::DEVICE_TYPE_GPU, OpenCL::DEVICE_TYPE_ACCELERATOR,
		833	OpenCL::DEVICE_TYPE_CUSTOM, OpenCL::DEVICE_TYPE_ALL.
		834
		835	fp_config: OpenCL::FP_DENORM, OpenCL::FP_INF_NAN, OpenCL::FP_ROUND_TO_NEAREST,
		836	OpenCL::FP_ROUND_TO_ZERO, OpenCL::FP_ROUND_TO_INF, OpenCL::FP_FMA,
		837	OpenCL::FP_SOFT_FLOAT, OpenCL::FP_CORRECTLY_ROUNDED_DIVIDE_SQRT.
		838
		839	mem_cache_type: OpenCL::NONE, OpenCL::READ_ONLY_CACHE, OpenCL::READ_WRITE_CACHE.
		840
		841	local_mem_type: OpenCL::LOCAL, OpenCL::GLOBAL.
		842
		843	exec_capabilities: OpenCL::EXEC_KERNEL, OpenCL::EXEC_NATIVE_KERNEL.
		844
		845	command_queue_properties: OpenCL::QUEUE_OUT_OF_ORDER_EXEC_MODE_ENABLE,
		846	OpenCL::QUEUE_PROFILING_ENABLE.
		847
		848	partition_properties: OpenCL::DEVICE_PARTITION_EQUALLY,
		849	OpenCL::DEVICE_PARTITION_BY_COUNTS, OpenCL::DEVICE_PARTITION_BY_COUNTS_LIST_END,
		850	OpenCL::DEVICE_PARTITION_BY_AFFINITY_DOMAIN.
		851
		852	affinity_domain: OpenCL::DEVICE_AFFINITY_DOMAIN_NUMA,
		853	OpenCL::DEVICE_AFFINITY_DOMAIN_L4_CACHE, OpenCL::DEVICE_AFFINITY_DOMAIN_L3_CACHE,
		854	OpenCL::DEVICE_AFFINITY_DOMAIN_L2_CACHE, OpenCL::DEVICE_AFFINITY_DOMAIN_L1_CACHE,
		855	OpenCL::DEVICE_AFFINITY_DOMAIN_NEXT_PARTITIONABLE.
		856
716	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetDeviceInfo.html>	857	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetDeviceInfo.html>
717		858
		859	=item @devices = $device->sub_devices (\@properties)
		860
		861	Creates OpencL::SubDevice objects by partitioning an existing device.
		862
		863	L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clCreateSubDevices.html>
		864
718	=for gengetinfo begin device	865	=for gengetinfo begin device
719		866
720	=item $device_type = $device->type	867	=item $device_type = $device->type
721		868
722	Calls C<clGetDeviceInfo> with C<CL_DEVICE_TYPE> and returns the result.	869	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_TYPE> and returns the result.
723		870
724	=item $uint = $device->vendor_id	871	=item $uint = $device->vendor_id
725		872
726	Calls C<clGetDeviceInfo> with C<CL_DEVICE_VENDOR_ID> and returns the result.	873	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_VENDOR_ID> and returns the result.
727		874
728	=item $uint = $device->max_compute_units	875	=item $uint = $device->max_compute_units
729		876
730	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_COMPUTE_UNITS> and returns the result.	877	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MAX_COMPUTE_UNITS> and returns the result.
731		878
732	=item $uint = $device->max_work_item_dimensions	879	=item $uint = $device->max_work_item_dimensions
733		880
734	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_WORK_ITEM_DIMENSIONS> and returns the result.	881	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MAX_WORK_ITEM_DIMENSIONS> and returns the result.
735		882
736	=item $int = $device->max_work_group_size	883	=item $int = $device->max_work_group_size
737		884
738	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_WORK_GROUP_SIZE> and returns the result.	885	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MAX_WORK_GROUP_SIZE> and returns the result.
739		886
740	=item @ints = $device->max_work_item_sizes	887	=item @ints = $device->max_work_item_sizes
741		888
742	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_WORK_ITEM_SIZES> and returns the result.	889	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MAX_WORK_ITEM_SIZES> and returns the result.
743		890
744	=item $uint = $device->preferred_vector_width_char	891	=item $uint = $device->preferred_vector_width_char
745		892
746	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PREFERRED_VECTOR_WIDTH_CHAR> and returns the result.	893	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PREFERRED_VECTOR_WIDTH_CHAR> and returns the result.
747		894
748	=item $uint = $device->preferred_vector_width_short	895	=item $uint = $device->preferred_vector_width_short
749		896
750	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PREFERRED_VECTOR_WIDTH_SHORT> and returns the result.	897	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PREFERRED_VECTOR_WIDTH_SHORT> and returns the result.
751		898
752	=item $uint = $device->preferred_vector_width_int	899	=item $uint = $device->preferred_vector_width_int
753		900
754	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PREFERRED_VECTOR_WIDTH_INT> and returns the result.	901	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PREFERRED_VECTOR_WIDTH_INT> and returns the result.
755		902
756	=item $uint = $device->preferred_vector_width_long	903	=item $uint = $device->preferred_vector_width_long
757		904
758	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PREFERRED_VECTOR_WIDTH_LONG> and returns the result.	905	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PREFERRED_VECTOR_WIDTH_LONG> and returns the result.
759		906
760	=item $uint = $device->preferred_vector_width_float	907	=item $uint = $device->preferred_vector_width_float
761		908
762	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PREFERRED_VECTOR_WIDTH_FLOAT> and returns the result.	909	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PREFERRED_VECTOR_WIDTH_FLOAT> and returns the result.
763		910
764	=item $uint = $device->preferred_vector_width_double	911	=item $uint = $device->preferred_vector_width_double
765		912
766	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PREFERRED_VECTOR_WIDTH_DOUBLE> and returns the result.	913	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PREFERRED_VECTOR_WIDTH_DOUBLE> and returns the result.
767		914
768	=item $uint = $device->max_clock_frequency	915	=item $uint = $device->max_clock_frequency
769		916
770	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_CLOCK_FREQUENCY> and returns the result.	917	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MAX_CLOCK_FREQUENCY> and returns the result.
771		918
772	=item $bitfield = $device->address_bits	919	=item $bitfield = $device->address_bits
773		920
774	Calls C<clGetDeviceInfo> with C<CL_DEVICE_ADDRESS_BITS> and returns the result.	921	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_ADDRESS_BITS> and returns the result.
775		922
776	=item $uint = $device->max_read_image_args	923	=item $uint = $device->max_read_image_args
777		924
778	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_READ_IMAGE_ARGS> and returns the result.	925	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MAX_READ_IMAGE_ARGS> and returns the result.
779		926
780	=item $uint = $device->max_write_image_args	927	=item $uint = $device->max_write_image_args
781		928
782	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_WRITE_IMAGE_ARGS> and returns the result.	929	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MAX_WRITE_IMAGE_ARGS> and returns the result.
783		930
784	=item $ulong = $device->max_mem_alloc_size	931	=item $ulong = $device->max_mem_alloc_size
785		932
786	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_MEM_ALLOC_SIZE> and returns the result.	933	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MAX_MEM_ALLOC_SIZE> and returns the result.
787		934
788	=item $int = $device->image2d_max_width	935	=item $int = $device->image2d_max_width
789		936
790	Calls C<clGetDeviceInfo> with C<CL_DEVICE_IMAGE2D_MAX_WIDTH> and returns the result.	937	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_IMAGE2D_MAX_WIDTH> and returns the result.
791		938
792	=item $int = $device->image2d_max_height	939	=item $int = $device->image2d_max_height
793		940
794	Calls C<clGetDeviceInfo> with C<CL_DEVICE_IMAGE2D_MAX_HEIGHT> and returns the result.	941	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_IMAGE2D_MAX_HEIGHT> and returns the result.
795		942
796	=item $int = $device->image3d_max_width	943	=item $int = $device->image3d_max_width
797		944
798	Calls C<clGetDeviceInfo> with C<CL_DEVICE_IMAGE3D_MAX_WIDTH> and returns the result.	945	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_IMAGE3D_MAX_WIDTH> and returns the result.
799		946
800	=item $int = $device->image3d_max_height	947	=item $int = $device->image3d_max_height
801		948
802	Calls C<clGetDeviceInfo> with C<CL_DEVICE_IMAGE3D_MAX_HEIGHT> and returns the result.	949	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_IMAGE3D_MAX_HEIGHT> and returns the result.
803		950
804	=item $int = $device->image3d_max_depth	951	=item $int = $device->image3d_max_depth
805		952
806	Calls C<clGetDeviceInfo> with C<CL_DEVICE_IMAGE3D_MAX_DEPTH> and returns the result.	953	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_IMAGE3D_MAX_DEPTH> and returns the result.
807		954
808	=item $uint = $device->image_support	955	=item $uint = $device->image_support
809		956
810	Calls C<clGetDeviceInfo> with C<CL_DEVICE_IMAGE_SUPPORT> and returns the result.	957	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_IMAGE_SUPPORT> and returns the result.
811		958
812	=item $int = $device->max_parameter_size	959	=item $int = $device->max_parameter_size
813		960
814	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_PARAMETER_SIZE> and returns the result.	961	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MAX_PARAMETER_SIZE> and returns the result.
815		962
816	=item $uint = $device->max_samplers	963	=item $uint = $device->max_samplers
817		964
818	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_SAMPLERS> and returns the result.	965	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MAX_SAMPLERS> and returns the result.
819		966
820	=item $uint = $device->mem_base_addr_align	967	=item $uint = $device->mem_base_addr_align
821		968
822	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MEM_BASE_ADDR_ALIGN> and returns the result.	969	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MEM_BASE_ADDR_ALIGN> and returns the result.
823		970
824	=item $uint = $device->min_data_type_align_size	971	=item $uint = $device->min_data_type_align_size
825		972
826	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MIN_DATA_TYPE_ALIGN_SIZE> and returns the result.	973	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MIN_DATA_TYPE_ALIGN_SIZE> and returns the result.
827		974
828	=item $device_fp_config = $device->single_fp_config	975	=item $device_fp_config = $device->single_fp_config
829		976
830	Calls C<clGetDeviceInfo> with C<CL_DEVICE_SINGLE_FP_CONFIG> and returns the result.	977	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_SINGLE_FP_CONFIG> and returns the result.
831		978
832	=item $device_mem_cache_type = $device->global_mem_cache_type	979	=item $device_mem_cache_type = $device->global_mem_cache_type
833		980
834	Calls C<clGetDeviceInfo> with C<CL_DEVICE_GLOBAL_MEM_CACHE_TYPE> and returns the result.	981	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_GLOBAL_MEM_CACHE_TYPE> and returns the result.
835		982
836	=item $uint = $device->global_mem_cacheline_size	983	=item $uint = $device->global_mem_cacheline_size
837		984
838	Calls C<clGetDeviceInfo> with C<CL_DEVICE_GLOBAL_MEM_CACHELINE_SIZE> and returns the result.	985	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_GLOBAL_MEM_CACHELINE_SIZE> and returns the result.
839		986
840	=item $ulong = $device->global_mem_cache_size	987	=item $ulong = $device->global_mem_cache_size
841		988
842	Calls C<clGetDeviceInfo> with C<CL_DEVICE_GLOBAL_MEM_CACHE_SIZE> and returns the result.	989	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_GLOBAL_MEM_CACHE_SIZE> and returns the result.
843		990
844	=item $ulong = $device->global_mem_size	991	=item $ulong = $device->global_mem_size
845		992
846	Calls C<clGetDeviceInfo> with C<CL_DEVICE_GLOBAL_MEM_SIZE> and returns the result.	993	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_GLOBAL_MEM_SIZE> and returns the result.
847		994
848	=item $ulong = $device->max_constant_buffer_size	995	=item $ulong = $device->max_constant_buffer_size
849		996
850	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_CONSTANT_BUFFER_SIZE> and returns the result.	997	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MAX_CONSTANT_BUFFER_SIZE> and returns the result.
851		998
852	=item $uint = $device->max_constant_args	999	=item $uint = $device->max_constant_args
853		1000
854	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_CONSTANT_ARGS> and returns the result.	1001	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MAX_CONSTANT_ARGS> and returns the result.
855		1002
856	=item $device_local_mem_type = $device->local_mem_type	1003	=item $device_local_mem_type = $device->local_mem_type
857		1004
858	Calls C<clGetDeviceInfo> with C<CL_DEVICE_LOCAL_MEM_TYPE> and returns the result.	1005	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_LOCAL_MEM_TYPE> and returns the result.
859		1006
860	=item $ulong = $device->local_mem_size	1007	=item $ulong = $device->local_mem_size
861		1008
862	Calls C<clGetDeviceInfo> with C<CL_DEVICE_LOCAL_MEM_SIZE> and returns the result.	1009	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_LOCAL_MEM_SIZE> and returns the result.
863		1010
864	=item $boolean = $device->error_correction_support	1011	=item $boolean = $device->error_correction_support
865		1012
866	Calls C<clGetDeviceInfo> with C<CL_DEVICE_ERROR_CORRECTION_SUPPORT> and returns the result.	1013	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_ERROR_CORRECTION_SUPPORT> and returns the result.
867		1014
868	=item $int = $device->profiling_timer_resolution	1015	=item $int = $device->profiling_timer_resolution
869		1016
870	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PROFILING_TIMER_RESOLUTION> and returns the result.	1017	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PROFILING_TIMER_RESOLUTION> and returns the result.
871		1018
872	=item $boolean = $device->endian_little	1019	=item $boolean = $device->endian_little
873		1020
874	Calls C<clGetDeviceInfo> with C<CL_DEVICE_ENDIAN_LITTLE> and returns the result.	1021	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_ENDIAN_LITTLE> and returns the result.
875		1022
876	=item $boolean = $device->available	1023	=item $boolean = $device->available
877		1024
878	Calls C<clGetDeviceInfo> with C<CL_DEVICE_AVAILABLE> and returns the result.	1025	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_AVAILABLE> and returns the result.
879		1026
880	=item $boolean = $device->compiler_available	1027	=item $boolean = $device->compiler_available
881		1028
882	Calls C<clGetDeviceInfo> with C<CL_DEVICE_COMPILER_AVAILABLE> and returns the result.	1029	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_COMPILER_AVAILABLE> and returns the result.
883		1030
884	=item $device_exec_capabilities = $device->execution_capabilities	1031	=item $device_exec_capabilities = $device->execution_capabilities
885		1032
886	Calls C<clGetDeviceInfo> with C<CL_DEVICE_EXECUTION_CAPABILITIES> and returns the result.	1033	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_EXECUTION_CAPABILITIES> and returns the result.
887		1034
888	=item $command_queue_properties = $device->properties	1035	=item $command_queue_properties = $device->properties
889		1036
890	Calls C<clGetDeviceInfo> with C<CL_DEVICE_QUEUE_PROPERTIES> and returns the result.	1037	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_QUEUE_PROPERTIES> and returns the result.
891		1038
892	=item $ = $device->platform	1039	=item $ = $device->platform
893		1040
894	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PLATFORM> and returns the result.	1041	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PLATFORM> and returns the result.
895		1042
896	=item $string = $device->name	1043	=item $string = $device->name
897		1044
898	Calls C<clGetDeviceInfo> with C<CL_DEVICE_NAME> and returns the result.	1045	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_NAME> and returns the result.
899		1046
900	=item $string = $device->vendor	1047	=item $string = $device->vendor
901		1048
902	Calls C<clGetDeviceInfo> with C<CL_DEVICE_VENDOR> and returns the result.	1049	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_VENDOR> and returns the result.
903		1050
904	=item $string = $device->driver_version	1051	=item $string = $device->driver_version
905		1052
906	Calls C<clGetDeviceInfo> with C<CL_DRIVER_VERSION> and returns the result.	1053	Calls C<clGetDeviceInfo> with C<OpenCL::DRIVER_VERSION> and returns the result.
907		1054
908	=item $string = $device->profile	1055	=item $string = $device->profile
909		1056
910	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PROFILE> and returns the result.	1057	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PROFILE> and returns the result.
911		1058
912	=item $string = $device->version	1059	=item $string = $device->version
913		1060
914	Calls C<clGetDeviceInfo> with C<CL_DEVICE_VERSION> and returns the result.	1061	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_VERSION> and returns the result.
915		1062
916	=item $string = $device->extensions	1063	=item $string = $device->extensions
917		1064
918	Calls C<clGetDeviceInfo> with C<CL_DEVICE_EXTENSIONS> and returns the result.	1065	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_EXTENSIONS> and returns the result.
919		1066
920	=item $uint = $device->preferred_vector_width_half	1067	=item $uint = $device->preferred_vector_width_half
921		1068
922	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PREFERRED_VECTOR_WIDTH_HALF> and returns the result.	1069	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PREFERRED_VECTOR_WIDTH_HALF> and returns the result.
923		1070
924	=item $uint = $device->native_vector_width_char	1071	=item $uint = $device->native_vector_width_char
925		1072
926	Calls C<clGetDeviceInfo> with C<CL_DEVICE_NATIVE_VECTOR_WIDTH_CHAR> and returns the result.	1073	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_NATIVE_VECTOR_WIDTH_CHAR> and returns the result.
927		1074
928	=item $uint = $device->native_vector_width_short	1075	=item $uint = $device->native_vector_width_short
929		1076
930	Calls C<clGetDeviceInfo> with C<CL_DEVICE_NATIVE_VECTOR_WIDTH_SHORT> and returns the result.	1077	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_NATIVE_VECTOR_WIDTH_SHORT> and returns the result.
931		1078
932	=item $uint = $device->native_vector_width_int	1079	=item $uint = $device->native_vector_width_int
933		1080
934	Calls C<clGetDeviceInfo> with C<CL_DEVICE_NATIVE_VECTOR_WIDTH_INT> and returns the result.	1081	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_NATIVE_VECTOR_WIDTH_INT> and returns the result.
935		1082
936	=item $uint = $device->native_vector_width_long	1083	=item $uint = $device->native_vector_width_long
937		1084
938	Calls C<clGetDeviceInfo> with C<CL_DEVICE_NATIVE_VECTOR_WIDTH_LONG> and returns the result.	1085	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_NATIVE_VECTOR_WIDTH_LONG> and returns the result.
939		1086
940	=item $uint = $device->native_vector_width_float	1087	=item $uint = $device->native_vector_width_float
941		1088
942	Calls C<clGetDeviceInfo> with C<CL_DEVICE_NATIVE_VECTOR_WIDTH_FLOAT> and returns the result.	1089	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_NATIVE_VECTOR_WIDTH_FLOAT> and returns the result.
943		1090
944	=item $uint = $device->native_vector_width_double	1091	=item $uint = $device->native_vector_width_double
945		1092
946	Calls C<clGetDeviceInfo> with C<CL_DEVICE_NATIVE_VECTOR_WIDTH_DOUBLE> and returns the result.	1093	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_NATIVE_VECTOR_WIDTH_DOUBLE> and returns the result.
947		1094
948	=item $uint = $device->native_vector_width_half	1095	=item $uint = $device->native_vector_width_half
949		1096
950	Calls C<clGetDeviceInfo> with C<CL_DEVICE_NATIVE_VECTOR_WIDTH_HALF> and returns the result.	1097	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_NATIVE_VECTOR_WIDTH_HALF> and returns the result.
951		1098
952	=item $device_fp_config = $device->double_fp_config	1099	=item $device_fp_config = $device->double_fp_config
953		1100
954	Calls C<clGetDeviceInfo> with C<CL_DEVICE_DOUBLE_FP_CONFIG> and returns the result.	1101	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_DOUBLE_FP_CONFIG> and returns the result.
955		1102
956	=item $device_fp_config = $device->half_fp_config	1103	=item $device_fp_config = $device->half_fp_config
957		1104
958	Calls C<clGetDeviceInfo> with C<CL_DEVICE_HALF_FP_CONFIG> and returns the result.	1105	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_HALF_FP_CONFIG> and returns the result.
959		1106
960	=item $boolean = $device->host_unified_memory	1107	=item $boolean = $device->host_unified_memory
961		1108
962	Calls C<clGetDeviceInfo> with C<CL_DEVICE_HOST_UNIFIED_MEMORY> and returns the result.	1109	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_HOST_UNIFIED_MEMORY> and returns the result.
963		1110
964	=item $device = $device->parent_device_ext	1111	=item $device = $device->parent_device_ext
965		1112
966	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PARENT_DEVICE_EXT> and returns the result.	1113	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PARENT_DEVICE_EXT> and returns the result.
967		1114
968	=item @device_partition_property_exts = $device->partition_types_ext	1115	=item @device_partition_property_exts = $device->partition_types_ext
969		1116
970	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PARTITION_TYPES_EXT> and returns the result.	1117	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PARTITION_TYPES_EXT> and returns the result.
971		1118
972	=item @device_partition_property_exts = $device->affinity_domains_ext	1119	=item @device_partition_property_exts = $device->affinity_domains_ext
973		1120
974	Calls C<clGetDeviceInfo> with C<CL_DEVICE_AFFINITY_DOMAINS_EXT> and returns the result.	1121	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_AFFINITY_DOMAINS_EXT> and returns the result.
975		1122
976	=item $uint = $device->reference_count_ext	1123	=item $uint = $device->reference_count_ext
977		1124
978	Calls C<clGetDeviceInfo> with C<CL_DEVICE_REFERENCE_COUNT_EXT> and returns the result.	1125	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_REFERENCE_COUNT_EXT> and returns the result.
979		1126
980	=item @device_partition_property_exts = $device->partition_style_ext	1127	=item @device_partition_property_exts = $device->partition_style_ext
981		1128
982	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PARTITION_STYLE_EXT> and returns the result.	1129	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PARTITION_STYLE_EXT> and returns the result.
983		1130
984	=for gengetinfo end device	1131	=for gengetinfo end device
985		1132
986	=back	1133	=back
987		1134
988	=head2 THE OpenCL::Context CLASS	1135	=head2 THE OpenCL::Context CLASS
		1136
		1137	An OpenCL::Context is basically a container, or manager, for a number of
		1138	devices of a platform. It is used to create all sorts of secondary objects
		1139	such as buffers, queues, programs and so on.
		1140
		1141	All context creation functions and methods take a list of properties
		1142	(type-value pairs). All property values can be specified as integers -
		1143	some additionally support other types:
		1144
		1145	=over 4
		1146
		1147	=item OpenCL::CONTEXT_PLATFORM
		1148
		1149	Also accepts OpenCL::Platform objects.
		1150
		1151	=item OpenCL::GLX_DISPLAY_KHR
		1152
		1153	Also accepts C<undef>, in which case a deep and troubling hack is engaged
		1154	to find the current glx display (see L<GLX SUPPORT>).
		1155
		1156	=item OpenCL::GL_CONTEXT_KHR
		1157
		1158	Also accepts C<undef>, in which case a deep and troubling hack is engaged
		1159	to find the current glx context (see L<GLX SUPPORT>).
		1160
		1161	=back
989		1162
990	=over 4	1163	=over 4
991		1164
992	=item $prog = $ctx->build_program ($program, $options = "")	1165	=item $prog = $ctx->build_program ($program, $options = "")
993		1166
…		…
1002	=cut	1175	=cut
1003		1176
1004	sub OpenCL::Context::build_program {	1177	sub OpenCL::Context::build_program {
1005	my ($self, $prog, $options) = @_;	1178	my ($self, $prog, $options) = @_;
1006		1179
1007	require Carp;
1008
1009	$prog = $self->program_with_source ($prog)	1180	$prog = $self->program_with_source ($prog)
1010	unless ref $prog;	1181	unless ref $prog;
1011		1182
1012	# we build separately per device so we instantly know which one failed	1183	eval { $prog->build (undef, $options); 1 }
		1184	or errno == BUILD_PROGRAM_FAILURE
		1185	or errno == INVALID_BINARY # workaround nvidia bug
		1186	or Carp::croak "OpenCL::Context->build_program: " . err2str;
		1187
		1188	# we check status for all devices
1013	for my $dev ($self->devices) {	1189	for my $dev ($self->devices) {
1014	eval { $prog->build ([$dev], $options); 1 }	1190	$prog->build_status ($dev) == BUILD_SUCCESS
1015	or Carp::croak ("Building OpenCL program for device '" . $dev->name . "' failed:\n"	1191	or Carp::croak "Building OpenCL program for device '" . $dev->name . "' failed:\n"
1016	. $prog->build_log ($dev));	1192	. $prog->build_log ($dev);
1017	}	1193	}
1018		1194
1019	$prog	1195	$prog
1020	}	1196	}
1021		1197
…		…
1038	=item $buf = $ctx->buffer ($flags, $len)	1214	=item $buf = $ctx->buffer ($flags, $len)
1039		1215
1040	Creates a new OpenCL::Buffer (actually OpenCL::BufferObj) object with the	1216	Creates a new OpenCL::Buffer (actually OpenCL::BufferObj) object with the
1041	given flags and octet-size.	1217	given flags and octet-size.
1042		1218
		1219	flags: OpenCL::MEM_READ_WRITE, OpenCL::MEM_WRITE_ONLY, OpenCL::MEM_READ_ONLY,
		1220	OpenCL::MEM_USE_HOST_PTR, OpenCL::MEM_ALLOC_HOST_PTR, OpenCL::MEM_COPY_HOST_PTR,
		1221	OpenCL::MEM_HOST_WRITE_ONLY, OpenCL::MEM_HOST_READ_ONLY, OpenCL::MEM_HOST_NO_ACCESS.
		1222
1043	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateBuffer.html>	1223	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateBuffer.html>
1044		1224
1045	=item $buf = $ctx->buffer_sv ($flags, $data)	1225	=item $buf = $ctx->buffer_sv ($flags, $data)
1046		1226
1047	Creates a new OpenCL::Buffer (actually OpenCL::BufferObj) object and	1227	Creates a new OpenCL::Buffer (actually OpenCL::BufferObj) object and
…		…
1050	=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)	1230	=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)
1051		1231
1052	Creates a new OpenCL::Image object and optionally initialises it with	1232	Creates a new OpenCL::Image object and optionally initialises it with
1053	the given data values.	1233	the given data values.
1054		1234
		1235	channel_order: OpenCL::R, OpenCL::A, OpenCL::RG, OpenCL::RA, OpenCL::RGB,
		1236	OpenCL::RGBA, OpenCL::BGRA, OpenCL::ARGB, OpenCL::INTENSITY, OpenCL::LUMINANCE,
		1237	OpenCL::Rx, OpenCL::RGx, OpenCL::RGBx.
		1238
		1239	channel_type: OpenCL::SNORM_INT8, OpenCL::SNORM_INT16, OpenCL::UNORM_INT8,
		1240	OpenCL::UNORM_INT16, OpenCL::UNORM_SHORT_565, OpenCL::UNORM_SHORT_555,
		1241	OpenCL::UNORM_INT_101010, OpenCL::SIGNED_INT8, OpenCL::SIGNED_INT16,
		1242	OpenCL::SIGNED_INT32, OpenCL::UNSIGNED_INT8, OpenCL::UNSIGNED_INT16,
		1243	OpenCL::UNSIGNED_INT32, OpenCL::HALF_FLOAT, OpenCL::FLOAT.
		1244
		1245	type: OpenCL::MEM_OBJECT_BUFFER, OpenCL::MEM_OBJECT_IMAGE2D,
		1246	OpenCL::MEM_OBJECT_IMAGE3D, OpenCL::MEM_OBJECT_IMAGE2D_ARRAY,
		1247	OpenCL::MEM_OBJECT_IMAGE1D, OpenCL::MEM_OBJECT_IMAGE1D_ARRAY,
		1248	OpenCL::MEM_OBJECT_IMAGE1D_BUFFER.
		1249
1055	L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clCreateImage.html>	1250	L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clCreateImage.html>
1056		1251
1057	=item $img = $ctx->image2d ($flags, $channel_order, $channel_type, $width, $height, $row_pitch = 0, $data = undef)	1252	=item $img = $ctx->image2d ($flags, $channel_order, $channel_type, $width, $height, $row_pitch = 0, $data = undef)
1058		1253
1059	Creates a new OpenCL::Image2D object and optionally initialises it with	1254	Creates a new OpenCL::Image2D object and optionally initialises it with
…		…
1071	=item $buffer = $ctx->gl_buffer ($flags, $bufobj)	1266	=item $buffer = $ctx->gl_buffer ($flags, $bufobj)
1072		1267
1073	Creates a new OpenCL::Buffer (actually OpenCL::BufferObj) object that refers to the given	1268	Creates a new OpenCL::Buffer (actually OpenCL::BufferObj) object that refers to the given
1074	OpenGL buffer object.	1269	OpenGL buffer object.
1075		1270
		1271	flags: OpenCL::MEM_READ_WRITE, OpenCL::MEM_READ_ONLY, OpenCL::MEM_WRITE_ONLY.
		1272
1076	http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateFromGLBuffer.html	1273	http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateFromGLBuffer.html
1077		1274
1078	=item $img = $ctx->gl_texture ($flags, $target, $miplevel, $texture)	1275	=item $img = $ctx->gl_texture ($flags, $target, $miplevel, $texture)
1079		1276
1080	Creates a new OpenCL::Image object that refers to the given OpenGL	1277	Creates a new OpenCL::Image object that refers to the given OpenGL
1081	texture object or buffer.	1278	texture object or buffer.
1082		1279
		1280	target: GL_TEXTURE_1D, GL_TEXTURE_1D_ARRAY, GL_TEXTURE_BUFFER,
		1281	GL_TEXTURE_2D, GL_TEXTURE_2D_ARRAY, GL_TEXTURE_3D,
		1282	GL_TEXTURE_CUBE_MAP_POSITIVE_X, GL_TEXTURE_CUBE_MAP_POSITIVE_Y,
		1283	GL_TEXTURE_CUBE_MAP_POSITIVE_Z, GL_TEXTURE_CUBE_MAP_NEGATIVE_X,
		1284	GL_TEXTURE_CUBE_MAP_NEGATIVE_Y, GL_TEXTURE_CUBE_MAP_NEGATIVE_Z,
		1285	GL_TEXTURE_RECTANGLE/GL_TEXTURE_RECTANGLE_ARB.
		1286
1083	http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clCreateFromGLTexture.html	1287	http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clCreateFromGLTexture.html
1084		1288
1085	=item $img = $ctx->gl_texture2d ($flags, $target, $miplevel, $texture)	1289	=item $img = $ctx->gl_texture2d ($flags, $target, $miplevel, $texture)
1086		1290
1087	Creates a new OpenCL::Image2D object that refers to the given OpenGL	1291	Creates a new OpenCL::Image2D object that refers to the given OpenGL
…		…
1112		1316
1113	=item $sampler = $ctx->sampler ($normalized_coords, $addressing_mode, $filter_mode)	1317	=item $sampler = $ctx->sampler ($normalized_coords, $addressing_mode, $filter_mode)
1114		1318
1115	Creates a new OpenCL::Sampler object.	1319	Creates a new OpenCL::Sampler object.
1116		1320
		1321	addressing_mode: OpenCL::ADDRESS_NONE, OpenCL::ADDRESS_CLAMP_TO_EDGE,
		1322	OpenCL::ADDRESS_CLAMP, OpenCL::ADDRESS_REPEAT, OpenCL::ADDRESS_MIRRORED_REPEAT.
		1323
		1324	filter_mode: OpenCL::FILTER_NEAREST, OpenCL::FILTER_LINEAR.
		1325
1117	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateSampler.html>	1326	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateSampler.html>
1118		1327
1119	=item $program = $ctx->program_with_source ($string)	1328	=item $program = $ctx->program_with_source ($string)
1120		1329
1121	Creates a new OpenCL::Program object from the given source code.	1330	Creates a new OpenCL::Program object from the given source code.
1122		1331
1123	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateProgramWithSource.html>	1332	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateProgramWithSource.html>
1124		1333
		1334	=item ($program, \@status) = $ctx->program_with_binary (\@devices, \@binaries)
		1335
		1336	Creates a new OpenCL::Program object from the given binaries.
		1337
		1338	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateProgramWithBinary.html>
		1339
		1340	Example: clone an existing program object that contains a successfully
		1341	compiled program, no matter how useless this is.
		1342
		1343	my $clone = $ctx->program_with_binary ([$prog->devices], [$prog->binaries]);
		1344
		1345	=item $program = $ctx->program_with_built_in_kernels (\@devices, $kernel_names)
		1346
		1347	Creates a new OpenCL::Program object from the given built-in kernel names.
		1348
		1349	L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clCreateProgramWithBuiltInKernels.html>
		1350
		1351	=item $program = $ctx->link_program (\@devices, $options, \@programs, $cb->($program) = undef)
		1352
		1353	Links all (already compiled) program objects specified in C<@programs>
		1354	together and returns a new OpenCL::Program object with the result.
		1355
		1356	L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clLinkProgram.html>
		1357
1125	=item $packed_value = $ctx->info ($name)	1358	=item $packed_value = $ctx->info ($name)
1126		1359
1127	See C<< $platform->info >> for details.	1360	See C<< $platform->info >> for details.
1128		1361
1129	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetContextInfo.html>	1362	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetContextInfo.html>
1130		1363
1131	=for gengetinfo begin context	1364	=for gengetinfo begin context
1132		1365
1133	=item $uint = $context->reference_count	1366	=item $uint = $context->reference_count
1134		1367
1135	Calls C<clGetContextInfo> with C<CL_CONTEXT_REFERENCE_COUNT> and returns the result.	1368	Calls C<clGetContextInfo> with C<OpenCL::CONTEXT_REFERENCE_COUNT> and returns the result.
1136		1369
1137	=item @devices = $context->devices	1370	=item @devices = $context->devices
1138		1371
1139	Calls C<clGetContextInfo> with C<CL_CONTEXT_DEVICES> and returns the result.	1372	Calls C<clGetContextInfo> with C<OpenCL::CONTEXT_DEVICES> and returns the result.
1140		1373
1141	=item @property_ints = $context->properties	1374	=item @property_ints = $context->properties
1142		1375
1143	Calls C<clGetContextInfo> with C<CL_CONTEXT_PROPERTIES> and returns the result.	1376	Calls C<clGetContextInfo> with C<OpenCL::CONTEXT_PROPERTIES> and returns the result.
1144		1377
1145	=item $uint = $context->num_devices	1378	=item $uint = $context->num_devices
1146		1379
1147	Calls C<clGetContextInfo> with C<CL_CONTEXT_NUM_DEVICES> and returns the result.	1380	Calls C<clGetContextInfo> with C<OpenCL::CONTEXT_NUM_DEVICES> and returns the result.
1148		1381
1149	=for gengetinfo end context	1382	=for gengetinfo end context
1150		1383
1151	=back	1384	=back
1152		1385
…		…
1191		1424
1192	=item $ev = $queue->copy_buffer ($src, $dst, $src_offset, $dst_offset, $len, $wait_events...)	1425	=item $ev = $queue->copy_buffer ($src, $dst, $src_offset, $dst_offset, $len, $wait_events...)
1193		1426
1194	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyBuffer.html>	1427	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyBuffer.html>
1195		1428
1196	=item $ev = $queue->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...)	1429	$eue->read_buffer_rect ($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...)
1197		1430
1198	http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReadBufferRect.html	1431	http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReadBufferRect.html
1199		1432
1200	=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...)	1433	=item $ev = $queue->write_buffer_rect ($buf, $blocking, $buf_y, $host_x, $host_z, $height, $buf_row_pitch, $host_row_pitch, $data, $wait_events...)
1201		1434
1202	http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWriteBufferRect.html	1435	http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWriteBufferRect.html
1203		1436
		1437	=item $ev = $queue->copy_buffer_to_image ($src_buffer, $dst_image, $src_offset, $dst_x, $dst_y, $dst_z, $width, $height, $depth, $wait_events...)
		1438
		1439	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyBufferToImage.html>
		1440
1204	=item $ev = $queue->read_image ($src, $blocking, $x, $y, $z, $width, $height, $depth, $row_pitch, $slice_pitch, $data, $wait_events...)	1441	=item $ev = $queue->read_image ($src, $blocking, $x, $y, $z, $width, $height, $depth, $row_pitch, $slice_pitch, $data, $wait_events...)
1205		1442
1206	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyBufferRect.html>	1443	C<$row_pitch> (and C<$slice_pitch>) can be C<0>, in which case the OpenCL
1207		1444	module uses the image width (and height) to supply default values.
1208	=item $ev = $queue->copy_buffer_to_image ($src_buffer, $dst_image, $src_offset, $dst_x, $dst_y, $dst_z, $width, $height, $depth, $wait_events...)
1209		1445
1210	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReadImage.html>	1446	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReadImage.html>
1211		1447
1212	=item $ev = $queue->write_image ($src, $blocking, $x, $y, $z, $width, $height, $depth, $row_pitch, $slice_pitch, $data, $wait_events...)	1448	=item $ev = $queue->write_image ($src, $blocking, $x, $y, $z, $width, $height, $depth, $row_pitch, $slice_pitch, $data, $wait_events...)
1213		1449
		1450	C<$row_pitch> (and C<$slice_pitch>) can be C<0>, in which case the OpenCL
		1451	module uses the image width (and height) to supply default values.
1214	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWriteImage.html>	1452	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWriteImage.html>
1215		1453
1216	=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...)	1454	=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...)
1217		1455
1218	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyImage.html>	1456	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyImage.html>
…		…
1263	reference to an array of local work sizes, with the same number of	1501	reference to an array of local work sizes, with the same number of
1264	elements as \@global_work_size.	1502	elements as \@global_work_size.
1265		1503
1266	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueNDRangeKernel.html>	1504	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueNDRangeKernel.html>
1267		1505
		1506	=item $ev = $queue->migrate_mem_objects (\@mem_objects, $flags, $wait_events...)
		1507
		1508	Migrates a number of OpenCL::Memory objects to or from the device.
		1509
		1510	flags: OpenCL::MIGRATE_MEM_OBJECT_HOST, OpenCL::MIGRATE_MEM_OBJECT_CONTENT_UNDEFINED
		1511
		1512	L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clEnqueueMigrateMemObjects.html>
		1513
1268	=item $ev = $queue->acquire_gl_objects ([object, ...], $wait_events...)	1514	=item $ev = $queue->acquire_gl_objects ([object, ...], $wait_events...)
1269		1515
1270	Enqueues a list (an array-ref of OpenCL::Memory objects) to be acquired	1516	Enqueues a list (an array-ref of OpenCL::Memory objects) to be acquired
1271	for subsequent OpenCL usage.	1517	for subsequent OpenCL usage.
1272		1518
…		…
1307		1553
1308	=for gengetinfo begin command_queue	1554	=for gengetinfo begin command_queue
1309		1555
1310	=item $ctx = $command_queue->context	1556	=item $ctx = $command_queue->context
1311		1557
1312	Calls C<clGetCommandQueueInfo> with C<CL_QUEUE_CONTEXT> and returns the result.	1558	Calls C<clGetCommandQueueInfo> with C<OpenCL::QUEUE_CONTEXT> and returns the result.
1313		1559
1314	=item $device = $command_queue->device	1560	=item $device = $command_queue->device
1315		1561
1316	Calls C<clGetCommandQueueInfo> with C<CL_QUEUE_DEVICE> and returns the result.	1562	Calls C<clGetCommandQueueInfo> with C<OpenCL::QUEUE_DEVICE> and returns the result.
1317		1563
1318	=item $uint = $command_queue->reference_count	1564	=item $uint = $command_queue->reference_count
1319		1565
1320	Calls C<clGetCommandQueueInfo> with C<CL_QUEUE_REFERENCE_COUNT> and returns the result.	1566	Calls C<clGetCommandQueueInfo> with C<OpenCL::QUEUE_REFERENCE_COUNT> and returns the result.
1321		1567
1322	=item $command_queue_properties = $command_queue->properties	1568	=item $command_queue_properties = $command_queue->properties
1323		1569
1324	Calls C<clGetCommandQueueInfo> with C<CL_QUEUE_PROPERTIES> and returns the result.	1570	Calls C<clGetCommandQueueInfo> with C<OpenCL::QUEUE_PROPERTIES> and returns the result.
1325		1571
1326	=for gengetinfo end command_queue	1572	=for gengetinfo end command_queue
		1573
		1574	=back
		1575
		1576	=head3 MEMORY MAPPED BUFFERS
		1577
		1578	OpenCL allows you to map buffers and images to host memory (read: perl
		1579	scalars). This is done much like reading or copying a buffer, by enqueuing
		1580	a map or unmap operation on the command queue.
		1581
		1582	The map operations return an C<OpenCL::Mapped> object - see L<THE
		1583	OpenCL::Mapped CLASS> section for details on what to do with these
		1584	objects.
		1585
		1586	The object will be unmapped automatically when the mapped object is
		1587	destroyed (you can use a barrier to make sure the unmap has finished,
		1588	before using the buffer in a kernel), but you can also enqueue an unmap
		1589	operation manually.
		1590
		1591	=over 4
		1592
		1593	=item $mapped_buffer = $queue->map_buffer ($buf, $blocking=1, $map_flags=OpenCL::MAP_READ|OpenCL::MAP_WRITE, $offset=0, $size=undef, $wait_events...)
		1594
		1595	Maps the given buffer into host memory and returns an
		1596	C<OpenCL::MappedBuffer> object. If C<$size> is specified as undef, then
		1597	the map will extend to the end of the buffer.
		1598
		1599	map_flags: OpenCL::MAP_READ, OpenCL::MAP_WRITE, OpenCL::MAP_WRITE_INVALIDATE_REGION.
		1600
		1601	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueMapBuffer.html>
		1602
		1603	Example: map the buffer $buf fully and replace the first 4 bytes by "abcd", then unmap.
		1604
		1605	{
		1606	my $mapped = $queue->map_buffer ($buf, 1, OpenCL::MAP_WRITE);
		1607	substr $$mapped, 0, 4, "abcd";
		1608	} # asynchronously unmap because $mapped is destroyed
		1609
		1610	=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...)
		1611
		1612	Maps the given image area into host memory and return an
		1613	C<OpenCL::MappedImage> object.
		1614
		1615	If any of C<$width>, C<$height> and/or C<$depth> are C<undef> then they
		1616	will be replaced by the maximum possible value.
		1617
		1618	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueMapImage.html>
		1619
		1620	Example: map an image (with OpenCL::UNSIGNED_INT8 channel type) and set
		1621	the first channel of the leftmost column to 5, then explicitly unmap
		1622	it. You are not necessarily meant to do it this way, this example just
		1623	shows you the accessors to use :)
		1624
		1625	my $mapped = $queue->map_image ($image, 1, OpenCL::MAP_WRITE);
		1626
		1627	$mapped->write ($_ * $mapped->row_pitch, pack "C", 5)
		1628	for 0 .. $mapped->height - 1;
		1629
		1630	$mapped->unmap;.
		1631	$mapped->wait; # only needed for out of order queues normally
		1632
		1633	=item $ev = $queue->unmap ($mapped, $wait_events...)
		1634
		1635	Unmaps the data from host memory. You must not call any methods that
		1636	modify the data, or modify the data scalar directly, after calling this
		1637	method.
		1638
		1639	The mapped event object will always be passed as part of the
		1640	$wait_events. The mapped event object will be replaced by the new event
		1641	object that this request creates.
1327		1642
1328	=back	1643	=back
1329		1644
1330	=head2 THE OpenCL::Memory CLASS	1645	=head2 THE OpenCL::Memory CLASS
1331		1646
…		…
1338		1653
1339	See C<< $platform->info >> for details.	1654	See C<< $platform->info >> for details.
1340		1655
1341	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetMemObjectInfo.html>	1656	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetMemObjectInfo.html>
1342		1657
		1658	=item $memory->destructor_callback ($cb->())
		1659
		1660	Sets a callback that will be invoked after the memory object is destructed.
		1661
		1662	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clSetMemObjectDestructorCallback.html>
		1663
1343	=for gengetinfo begin mem	1664	=for gengetinfo begin mem
1344		1665
1345	=item $mem_object_type = $mem->type	1666	=item $mem_object_type = $mem->type
1346		1667
1347	Calls C<clGetMemObjectInfo> with C<CL_MEM_TYPE> and returns the result.	1668	Calls C<clGetMemObjectInfo> with C<OpenCL::MEM_TYPE> and returns the result.
1348		1669
1349	=item $mem_flags = $mem->flags	1670	=item $mem_flags = $mem->flags
1350		1671
1351	Calls C<clGetMemObjectInfo> with C<CL_MEM_FLAGS> and returns the result.	1672	Calls C<clGetMemObjectInfo> with C<OpenCL::MEM_FLAGS> and returns the result.
1352		1673
1353	=item $int = $mem->size	1674	=item $int = $mem->size
1354		1675
1355	Calls C<clGetMemObjectInfo> with C<CL_MEM_SIZE> and returns the result.	1676	Calls C<clGetMemObjectInfo> with C<OpenCL::MEM_SIZE> and returns the result.
1356		1677
1357	=item $ptr_value = $mem->host_ptr	1678	=item $ptr_value = $mem->host_ptr
1358		1679
1359	Calls C<clGetMemObjectInfo> with C<CL_MEM_HOST_PTR> and returns the result.	1680	Calls C<clGetMemObjectInfo> with C<OpenCL::MEM_HOST_PTR> and returns the result.
1360		1681
1361	=item $uint = $mem->map_count	1682	=item $uint = $mem->map_count
1362		1683
1363	Calls C<clGetMemObjectInfo> with C<CL_MEM_MAP_COUNT> and returns the result.	1684	Calls C<clGetMemObjectInfo> with C<OpenCL::MEM_MAP_COUNT> and returns the result.
1364		1685
1365	=item $uint = $mem->reference_count	1686	=item $uint = $mem->reference_count
1366		1687
1367	Calls C<clGetMemObjectInfo> with C<CL_MEM_REFERENCE_COUNT> and returns the result.	1688	Calls C<clGetMemObjectInfo> with C<OpenCL::MEM_REFERENCE_COUNT> and returns the result.
1368		1689
1369	=item $ctx = $mem->context	1690	=item $ctx = $mem->context
1370		1691
1371	Calls C<clGetMemObjectInfo> with C<CL_MEM_CONTEXT> and returns the result.	1692	Calls C<clGetMemObjectInfo> with C<OpenCL::MEM_CONTEXT> and returns the result.
1372		1693
1373	=item $mem = $mem->associated_memobject	1694	=item $mem = $mem->associated_memobject
1374		1695
1375	Calls C<clGetMemObjectInfo> with C<CL_MEM_ASSOCIATED_MEMOBJECT> and returns the result.	1696	Calls C<clGetMemObjectInfo> with C<OpenCL::MEM_ASSOCIATED_MEMOBJECT> and returns the result.
1376		1697
1377	=item $int = $mem->offset	1698	=item $int = $mem->offset
1378		1699
1379	Calls C<clGetMemObjectInfo> with C<CL_MEM_OFFSET> and returns the result.	1700	Calls C<clGetMemObjectInfo> with C<OpenCL::MEM_OFFSET> and returns the result.
1380		1701
1381	=for gengetinfo end mem	1702	=for gengetinfo end mem
1382		1703
1383	=item ($type, $name) = $mem->gl_object_info	1704	=item ($type, $name) = $mem->gl_object_info
1384		1705
…		…
1404	=over 4	1725	=over 4
1405		1726
1406	=item $subbuf = $buf_obj->sub_buffer_region ($flags, $origin, $size)	1727	=item $subbuf = $buf_obj->sub_buffer_region ($flags, $origin, $size)
1407		1728
1408	Creates an OpenCL::Buffer objects from this buffer and returns it. The	1729	Creates an OpenCL::Buffer objects from this buffer and returns it. The
1409	C<buffer_create_type> is assumed to be C<CL_BUFFER_CREATE_TYPE_REGION>.	1730	C<buffer_create_type> is assumed to be C<OpenCL::BUFFER_CREATE_TYPE_REGION>.
1410		1731
1411	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateSubBuffer.html>	1732	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateSubBuffer.html>
1412		1733
1413	=back	1734	=back
1414		1735
…		…
1430	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetImageInfo.html>	1751	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetImageInfo.html>
1431		1752
1432	=item ($channel_order, $channel_data_type) = $image->format	1753	=item ($channel_order, $channel_data_type) = $image->format
1433		1754
1434	Returns the channel order and type used to create the image by calling	1755	Returns the channel order and type used to create the image by calling
1435	C<clGetImageInfo> with C<CL_IMAGE_FORMAT>.	1756	C<clGetImageInfo> with C<OpenCL::IMAGE_FORMAT>.
1436		1757
1437	=for gengetinfo begin image	1758	=for gengetinfo begin image
1438		1759
1439	=item $int = $image->element_size	1760	=item $int = $image->element_size
1440		1761
1441	Calls C<clGetImageInfo> with C<CL_IMAGE_ELEMENT_SIZE> and returns the result.	1762	Calls C<clGetImageInfo> with C<OpenCL::IMAGE_ELEMENT_SIZE> and returns the result.
1442		1763
1443	=item $int = $image->row_pitch	1764	=item $int = $image->row_pitch
1444		1765
1445	Calls C<clGetImageInfo> with C<CL_IMAGE_ROW_PITCH> and returns the result.	1766	Calls C<clGetImageInfo> with C<OpenCL::IMAGE_ROW_PITCH> and returns the result.
1446		1767
1447	=item $int = $image->slice_pitch	1768	=item $int = $image->slice_pitch
1448		1769
1449	Calls C<clGetImageInfo> with C<CL_IMAGE_SLICE_PITCH> and returns the result.	1770	Calls C<clGetImageInfo> with C<OpenCL::IMAGE_SLICE_PITCH> and returns the result.
1450		1771
1451	=item $int = $image->width	1772	=item $int = $image->width
1452		1773
1453	Calls C<clGetImageInfo> with C<CL_IMAGE_WIDTH> and returns the result.	1774	Calls C<clGetImageInfo> with C<OpenCL::IMAGE_WIDTH> and returns the result.
1454		1775
1455	=item $int = $image->height	1776	=item $int = $image->height
1456		1777
1457	Calls C<clGetImageInfo> with C<CL_IMAGE_HEIGHT> and returns the result.	1778	Calls C<clGetImageInfo> with C<OpenCL::IMAGE_HEIGHT> and returns the result.
1458		1779
1459	=item $int = $image->depth	1780	=item $int = $image->depth
1460		1781
1461	Calls C<clGetImageInfo> with C<CL_IMAGE_DEPTH> and returns the result.	1782	Calls C<clGetImageInfo> with C<OpenCL::IMAGE_DEPTH> and returns the result.
1462		1783
1463	=for gengetinfo end image	1784	=for gengetinfo end image
1464		1785
1465	=for gengetinfo begin gl_texture	1786	=for gengetinfo begin gl_texture
1466		1787
1467	=item $GLenum = $gl_texture->target	1788	=item $GLenum = $gl_texture->target
1468		1789
1469	Calls C<clGetGLTextureInfo> with C<CL_GL_TEXTURE_TARGET> and returns the result.	1790	Calls C<clGetGLTextureInfo> with C<OpenCL::GL_TEXTURE_TARGET> and returns the result.
1470		1791
1471	=item $GLint = $gl_texture->gl_mipmap_level	1792	=item $GLint = $gl_texture->gl_mipmap_level
1472		1793
1473	Calls C<clGetGLTextureInfo> with C<CL_GL_MIPMAP_LEVEL> and returns the result.	1794	Calls C<clGetGLTextureInfo> with C<OpenCL::GL_MIPMAP_LEVEL> and returns the result.
1474		1795
1475	=for gengetinfo end gl_texture	1796	=for gengetinfo end gl_texture
1476		1797
1477	=back	1798	=back
1478		1799
…		…
1488		1809
1489	=for gengetinfo begin sampler	1810	=for gengetinfo begin sampler
1490		1811
1491	=item $uint = $sampler->reference_count	1812	=item $uint = $sampler->reference_count
1492		1813
1493	Calls C<clGetSamplerInfo> with C<CL_SAMPLER_REFERENCE_COUNT> and returns the result.	1814	Calls C<clGetSamplerInfo> with C<OpenCL::SAMPLER_REFERENCE_COUNT> and returns the result.
1494		1815
1495	=item $ctx = $sampler->context	1816	=item $ctx = $sampler->context
1496		1817
1497	Calls C<clGetSamplerInfo> with C<CL_SAMPLER_CONTEXT> and returns the result.	1818	Calls C<clGetSamplerInfo> with C<OpenCL::SAMPLER_CONTEXT> and returns the result.
1498		1819
1499	=item $addressing_mode = $sampler->normalized_coords	1820	=item $addressing_mode = $sampler->normalized_coords
1500		1821
1501	Calls C<clGetSamplerInfo> with C<CL_SAMPLER_NORMALIZED_COORDS> and returns the result.	1822	Calls C<clGetSamplerInfo> with C<OpenCL::SAMPLER_NORMALIZED_COORDS> and returns the result.
1502		1823
1503	=item $filter_mode = $sampler->addressing_mode	1824	=item $filter_mode = $sampler->addressing_mode
1504		1825
1505	Calls C<clGetSamplerInfo> with C<CL_SAMPLER_ADDRESSING_MODE> and returns the result.	1826	Calls C<clGetSamplerInfo> with C<OpenCL::SAMPLER_ADDRESSING_MODE> and returns the result.
1506		1827
1507	=item $boolean = $sampler->filter_mode	1828	=item $boolean = $sampler->filter_mode
1508		1829
1509	Calls C<clGetSamplerInfo> with C<CL_SAMPLER_FILTER_MODE> and returns the result.	1830	Calls C<clGetSamplerInfo> with C<OpenCL::SAMPLER_FILTER_MODE> and returns the result.
1510		1831
1511	=for gengetinfo end sampler	1832	=for gengetinfo end sampler
1512		1833
1513	=back	1834	=back
1514		1835
…		…
1524	If a callback is specified, then it will be called when compilation is	1845	If a callback is specified, then it will be called when compilation is
1525	finished. Note that many OpenCL implementations block your program while	1846	finished. Note that many OpenCL implementations block your program while
1526	compiling whether you use a callback or not. See C<build_async> if you	1847	compiling whether you use a callback or not. See C<build_async> if you
1527	want to make sure the build is done in the background.	1848	want to make sure the build is done in the background.
1528		1849
1529	Note that some OpenCL implementations atc up badly, and don't call the	1850	Note that some OpenCL implementations act up badly, and don't call the
1530	callback in some error cases (but call it in others). This implementation	1851	callback in some error cases (but call it in others). This implementation
1531	assumes the callback will always be called, and leaks memory if this is	1852	assumes the callback will always be called, and leaks memory if this is
1532	not so. So best make sure you don't pass in invalid values.	1853	not so. So best make sure you don't pass in invalid values.
1533		1854
		1855	Some implementations fail with C<OpenCL::INVALID_BINARY> when the
		1856	compilation state is successful but some later stage fails.
		1857
		1858	options: C<-D name>, C<-D name=definition>, C<-I dir>,
		1859	C<-cl-single-precision-constant>, C<-cl-denorms-are-zero>,
		1860	C<-cl-fp32-correctly-rounded-divide-sqrt>, C<-cl-opt-disable>,
		1861	C<-cl-mad-enable>, C<-cl-no-signed-zeros>, C<-cl-unsafe-math-optimizations>,
		1862	C<-cl-finite-math-only>, C<-cl-fast-relaxed-math>,
		1863	C<-w>, C<-Werror>, C<-cl-std=CL1.1/CL1.2>, C<-cl-kernel-arg-info>,
		1864	C<-create-library>, C<-enable-link-options>.
		1865
		1866	build_status: OpenCL::BUILD_SUCCESS, OpenCL::BUILD_NONE,
		1867	OpenCL::BUILD_ERROR, OpenCL::BUILD_IN_PROGRESS.
		1868
1534	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clBuildProgram.html>	1869	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clBuildProgram.html>
1535		1870
1536	=item $program->build_async (\@devices = undef, $options = "", $cb->($program) = undef)	1871	=item $program->build_async (\@devices = undef, $options = "", $cb->($program) = undef)
1537		1872
1538	Similar to C<< ->build >>, except it starts a thread, and never fails (you	1873	Similar to C<< ->build >>, except it starts a thread, and never fails (you
1539	need to check the compilation status form the callback, or by polling).	1874	need to check the compilation status form the callback, or by polling).
1540		1875
		1876	=item $program->compile (\@devices = undef, $options = "", \%headers = undef, $cb->($program) = undef)
		1877
		1878	Compiles the given program for the given devices (or all devices if
		1879	undef). If C<$headers> is given, it must be a hashref with include name =>
		1880	OpenCL::Program pairs.
		1881
		1882	L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clCompileProgram.html>
		1883
1541	=item $packed_value = $program->build_info ($device, $name)	1884	=item $packed_value = $program->build_info ($device, $name)
1542		1885
1543	Similar to C<< $platform->info >>, but returns build info for a previous	1886	Similar to C<< $platform->info >>, but returns build info for a previous
1544	build attempt for the given device.	1887	build attempt for the given device.
1545		1888
		1889	binary_type: OpenCL::PROGRAM_BINARY_TYPE_NONE,
		1890	OpenCL::PROGRAM_BINARY_TYPE_COMPILED_OBJECT,
		1891	OpenCL::PROGRAM_BINARY_TYPE_LIBRARY,
		1892	OpenCL::PROGRAM_BINARY_TYPE_EXECUTABLE.
		1893
1546	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetBuildInfo.html>	1894	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetBuildInfo.html>
1547		1895
1548	=item $kernel = $program->kernel ($function_name)	1896	=item $kernel = $program->kernel ($function_name)
1549		1897
1550	Creates an OpenCL::Kernel object out of the named C<__kernel> function in	1898	Creates an OpenCL::Kernel object out of the named C<__kernel> function in
…		…
1560		1908
1561	=for gengetinfo begin program_build	1909	=for gengetinfo begin program_build
1562		1910
1563	=item $build_status = $program->build_status ($device)	1911	=item $build_status = $program->build_status ($device)
1564		1912
1565	Calls C<clGetProgramBuildInfo> with C<CL_PROGRAM_BUILD_STATUS> and returns the result.	1913	Calls C<clGetProgramBuildInfo> with C<OpenCL::PROGRAM_BUILD_STATUS> and returns the result.
1566		1914
1567	=item $string = $program->build_options ($device)	1915	=item $string = $program->build_options ($device)
1568		1916
1569	Calls C<clGetProgramBuildInfo> with C<CL_PROGRAM_BUILD_OPTIONS> and returns the result.	1917	Calls C<clGetProgramBuildInfo> with C<OpenCL::PROGRAM_BUILD_OPTIONS> and returns the result.
1570		1918
1571	=item $string = $program->build_log ($device)	1919	=item $string = $program->build_log ($device)
1572		1920
1573	Calls C<clGetProgramBuildInfo> with C<CL_PROGRAM_BUILD_LOG> and returns the result.	1921	Calls C<clGetProgramBuildInfo> with C<OpenCL::PROGRAM_BUILD_LOG> and returns the result.
		1922
		1923	=item $binary_type = $program->binary_type ($device)
		1924
		1925	Calls C<clGetProgramBuildInfo> with C<OpenCL::PROGRAM_BINARY_TYPE> and returns the result.
1574		1926
1575	=for gengetinfo end program_build	1927	=for gengetinfo end program_build
1576		1928
1577	=item $packed_value = $program->info ($name)	1929	=item $packed_value = $program->info ($name)
1578		1930
…		…
1582		1934
1583	=for gengetinfo begin program	1935	=for gengetinfo begin program
1584		1936
1585	=item $uint = $program->reference_count	1937	=item $uint = $program->reference_count
1586		1938
1587	Calls C<clGetProgramInfo> with C<CL_PROGRAM_REFERENCE_COUNT> and returns the result.	1939	Calls C<clGetProgramInfo> with C<OpenCL::PROGRAM_REFERENCE_COUNT> and returns the result.
1588		1940
1589	=item $ctx = $program->context	1941	=item $ctx = $program->context
1590		1942
1591	Calls C<clGetProgramInfo> with C<CL_PROGRAM_CONTEXT> and returns the result.	1943	Calls C<clGetProgramInfo> with C<OpenCL::PROGRAM_CONTEXT> and returns the result.
1592		1944
1593	=item $uint = $program->num_devices	1945	=item $uint = $program->num_devices
1594		1946
1595	Calls C<clGetProgramInfo> with C<CL_PROGRAM_NUM_DEVICES> and returns the result.	1947	Calls C<clGetProgramInfo> with C<OpenCL::PROGRAM_NUM_DEVICES> and returns the result.
1596		1948
1597	=item @devices = $program->devices	1949	=item @devices = $program->devices
1598		1950
1599	Calls C<clGetProgramInfo> with C<CL_PROGRAM_DEVICES> and returns the result.	1951	Calls C<clGetProgramInfo> with C<OpenCL::PROGRAM_DEVICES> and returns the result.
1600		1952
1601	=item $string = $program->source	1953	=item $string = $program->source
1602		1954
1603	Calls C<clGetProgramInfo> with C<CL_PROGRAM_SOURCE> and returns the result.	1955	Calls C<clGetProgramInfo> with C<OpenCL::PROGRAM_SOURCE> and returns the result.
1604		1956
1605	=item @ints = $program->binary_sizes	1957	=item @ints = $program->binary_sizes
1606		1958
1607	Calls C<clGetProgramInfo> with C<CL_PROGRAM_BINARY_SIZES> and returns the result.	1959	Calls C<clGetProgramInfo> with C<OpenCL::PROGRAM_BINARY_SIZES> and returns the result.
1608		1960
1609	=for gengetinfo end program	1961	=for gengetinfo end program
1610		1962
1611	=item @blobs = $program->binaries	1963	=item @blobs = $program->binaries
1612		1964
…		…
1633		1985
1634	=for gengetinfo begin kernel	1986	=for gengetinfo begin kernel
1635		1987
1636	=item $string = $kernel->function_name	1988	=item $string = $kernel->function_name
1637		1989
1638	Calls C<clGetKernelInfo> with C<CL_KERNEL_FUNCTION_NAME> and returns the result.	1990	Calls C<clGetKernelInfo> with C<OpenCL::KERNEL_FUNCTION_NAME> and returns the result.
1639		1991
1640	=item $uint = $kernel->num_args	1992	=item $uint = $kernel->num_args
1641		1993
1642	Calls C<clGetKernelInfo> with C<CL_KERNEL_NUM_ARGS> and returns the result.	1994	Calls C<clGetKernelInfo> with C<OpenCL::KERNEL_NUM_ARGS> and returns the result.
1643		1995
1644	=item $uint = $kernel->reference_count	1996	=item $uint = $kernel->reference_count
1645		1997
1646	Calls C<clGetKernelInfo> with C<CL_KERNEL_REFERENCE_COUNT> and returns the result.	1998	Calls C<clGetKernelInfo> with C<OpenCL::KERNEL_REFERENCE_COUNT> and returns the result.
1647		1999
1648	=item $ctx = $kernel->context	2000	=item $ctx = $kernel->context
1649		2001
1650	Calls C<clGetKernelInfo> with C<CL_KERNEL_CONTEXT> and returns the result.	2002	Calls C<clGetKernelInfo> with C<OpenCL::KERNEL_CONTEXT> and returns the result.
1651		2003
1652	=item $program = $kernel->program	2004	=item $program = $kernel->program
1653		2005
1654	Calls C<clGetKernelInfo> with C<CL_KERNEL_PROGRAM> and returns the result.	2006	Calls C<clGetKernelInfo> with C<OpenCL::KERNEL_PROGRAM> and returns the result.
1655		2007
1656	=for gengetinfo end kernel	2008	=for gengetinfo end kernel
1657		2009
1658	=item $packed_value = $kernel->work_group_info ($device, $name)	2010	=item $packed_value = $kernel->work_group_info ($device, $name)
1659		2011
1660	See C<< $platform->info >> for details.	2012	See C<< $platform->info >> for details.
1661		2013
1662	The reason this method is not called C<info> is that there already is an
1663	C<< ->info >> method.
1664
1665	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetKernelWorkGroupInfo.html>	2014	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetKernelWorkGroupInfo.html>
1666		2015
1667	=for gengetinfo begin kernel_work_group	2016	=for gengetinfo begin kernel_work_group
1668		2017
1669	=item $int = $kernel->work_group_size ($device)	2018	=item $int = $kernel->work_group_size ($device)
1670		2019
1671	Calls C<clGetKernelWorkGroupInfo> with C<CL_KERNEL_WORK_GROUP_SIZE> and returns the result.	2020	Calls C<clGetKernelWorkGroupInfo> with C<OpenCL::KERNEL_WORK_GROUP_SIZE> and returns the result.
1672		2021
1673	=item @ints = $kernel->compile_work_group_size ($device)	2022	=item @ints = $kernel->compile_work_group_size ($device)
1674		2023
1675	Calls C<clGetKernelWorkGroupInfo> with C<CL_KERNEL_COMPILE_WORK_GROUP_SIZE> and returns the result.	2024	Calls C<clGetKernelWorkGroupInfo> with C<OpenCL::KERNEL_COMPILE_WORK_GROUP_SIZE> and returns the result.
1676		2025
1677	=item $ulong = $kernel->local_mem_size ($device)	2026	=item $ulong = $kernel->local_mem_size ($device)
1678		2027
1679	Calls C<clGetKernelWorkGroupInfo> with C<CL_KERNEL_LOCAL_MEM_SIZE> and returns the result.	2028	Calls C<clGetKernelWorkGroupInfo> with C<OpenCL::KERNEL_LOCAL_MEM_SIZE> and returns the result.
1680		2029
1681	=item $int = $kernel->preferred_work_group_size_multiple ($device)	2030	=item $int = $kernel->preferred_work_group_size_multiple ($device)
1682		2031
1683	Calls C<clGetKernelWorkGroupInfo> with C<CL_KERNEL_PREFERRED_WORK_GROUP_SIZE_MULTIPLE> and returns the result.	2032	Calls C<clGetKernelWorkGroupInfo> with C<OpenCL::KERNEL_PREFERRED_WORK_GROUP_SIZE_MULTIPLE> and returns the result.
1684		2033
1685	=item $ulong = $kernel->private_mem_size ($device)	2034	=item $ulong = $kernel->private_mem_size ($device)
1686		2035
1687	Calls C<clGetKernelWorkGroupInfo> with C<CL_KERNEL_PRIVATE_MEM_SIZE> and returns the result.	2036	Calls C<clGetKernelWorkGroupInfo> with C<OpenCL::KERNEL_PRIVATE_MEM_SIZE> and returns the result.
1688		2037
1689	=for gengetinfo end kernel_work_group	2038	=for gengetinfo end kernel_work_group
		2039
		2040	=item $packed_value = $kernel->arg_info ($idx, $name)
		2041
		2042	See C<< $platform->info >> for details.
		2043
		2044	L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clGetKernelArgInfo.html>
		2045
		2046	=for gengetinfo begin kernel_arg
		2047
		2048	=item $kernel_arg_address_qualifier = $kernel->arg_address_qualifier ($idx)
		2049
		2050	Calls C<clGetKernelArgInfo> with C<OpenCL::KERNEL_ARG_ADDRESS_QUALIFIER> and returns the result.
		2051
		2052	=item $kernel_arg_access_qualifier = $kernel->arg_access_qualifier ($idx)
		2053
		2054	Calls C<clGetKernelArgInfo> with C<OpenCL::KERNEL_ARG_ACCESS_QUALIFIER> and returns the result.
		2055
		2056	=item $string = $kernel->arg_type_name ($idx)
		2057
		2058	Calls C<clGetKernelArgInfo> with C<OpenCL::KERNEL_ARG_TYPE_NAME> and returns the result.
		2059
		2060	=item $kernel_arg_type_qualifier = $kernel->arg_type_qualifier ($idx)
		2061
		2062	Calls C<clGetKernelArgInfo> with C<OpenCL::KERNEL_ARG_TYPE_QUALIFIER> and returns the result.
		2063
		2064	=item $string = $kernel->arg_name ($idx)
		2065
		2066	Calls C<clGetKernelArgInfo> with C<OpenCL::KERNEL_ARG_NAME> and returns the result.
		2067
		2068	=for gengetinfo end kernel_arg
1690		2069
1691	=item $kernel->setf ($format, ...)	2070	=item $kernel->setf ($format, ...)
1692		2071
1693	Sets the arguments of a kernel. Since OpenCL 1.1 doesn't have a generic	2072	Sets the arguments of a kernel. Since OpenCL 1.1 doesn't have a generic
1694	way to set arguments (and with OpenCL 1.2 it might be rather slow), you	2073	way to set arguments (and with OpenCL 1.2 it might be rather slow), you
…		…
1806		2185
1807	=for gengetinfo begin event	2186	=for gengetinfo begin event
1808		2187
1809	=item $queue = $event->command_queue	2188	=item $queue = $event->command_queue
1810		2189
1811	Calls C<clGetEventInfo> with C<CL_EVENT_COMMAND_QUEUE> and returns the result.	2190	Calls C<clGetEventInfo> with C<OpenCL::EVENT_COMMAND_QUEUE> and returns the result.
1812		2191
1813	=item $command_type = $event->command_type	2192	=item $command_type = $event->command_type
1814		2193
1815	Calls C<clGetEventInfo> with C<CL_EVENT_COMMAND_TYPE> and returns the result.	2194	Calls C<clGetEventInfo> with C<OpenCL::EVENT_COMMAND_TYPE> and returns the result.
1816		2195
1817	=item $uint = $event->reference_count	2196	=item $uint = $event->reference_count
1818		2197
1819	Calls C<clGetEventInfo> with C<CL_EVENT_REFERENCE_COUNT> and returns the result.	2198	Calls C<clGetEventInfo> with C<OpenCL::EVENT_REFERENCE_COUNT> and returns the result.
1820		2199
1821	=item $uint = $event->command_execution_status	2200	=item $uint = $event->command_execution_status
1822		2201
1823	Calls C<clGetEventInfo> with C<CL_EVENT_COMMAND_EXECUTION_STATUS> and returns the result.	2202	Calls C<clGetEventInfo> with C<OpenCL::EVENT_COMMAND_EXECUTION_STATUS> and returns the result.
1824		2203
1825	=item $ctx = $event->context	2204	=item $ctx = $event->context
1826		2205
1827	Calls C<clGetEventInfo> with C<CL_EVENT_CONTEXT> and returns the result.	2206	Calls C<clGetEventInfo> with C<OpenCL::EVENT_CONTEXT> and returns the result.
1828		2207
1829	=for gengetinfo end event	2208	=for gengetinfo end event
1830		2209
1831	=item $packed_value = $ev->profiling_info ($name)	2210	=item $packed_value = $ev->profiling_info ($name)
1832		2211
…		…
1839		2218
1840	=for gengetinfo begin profiling	2219	=for gengetinfo begin profiling
1841		2220
1842	=item $ulong = $event->profiling_command_queued	2221	=item $ulong = $event->profiling_command_queued
1843		2222
1844	Calls C<clGetEventProfilingInfo> with C<CL_PROFILING_COMMAND_QUEUED> and returns the result.	2223	Calls C<clGetEventProfilingInfo> with C<OpenCL::PROFILING_COMMAND_QUEUED> and returns the result.
1845		2224
1846	=item $ulong = $event->profiling_command_submit	2225	=item $ulong = $event->profiling_command_submit
1847		2226
1848	Calls C<clGetEventProfilingInfo> with C<CL_PROFILING_COMMAND_SUBMIT> and returns the result.	2227	Calls C<clGetEventProfilingInfo> with C<OpenCL::PROFILING_COMMAND_SUBMIT> and returns the result.
1849		2228
1850	=item $ulong = $event->profiling_command_start	2229	=item $ulong = $event->profiling_command_start
1851		2230
1852	Calls C<clGetEventProfilingInfo> with C<CL_PROFILING_COMMAND_START> and returns the result.	2231	Calls C<clGetEventProfilingInfo> with C<OpenCL::PROFILING_COMMAND_START> and returns the result.
1853		2232
1854	=item $ulong = $event->profiling_command_end	2233	=item $ulong = $event->profiling_command_end
1855		2234
1856	Calls C<clGetEventProfilingInfo> with C<CL_PROFILING_COMMAND_END> and returns the result.	2235	Calls C<clGetEventProfilingInfo> with C<OpenCL::PROFILING_COMMAND_END> and returns the result.
1857		2236
1858	=for gengetinfo end profiling	2237	=for gengetinfo end profiling
1859		2238
1860	=back	2239	=back
1861		2240
…		…
1868	=item $ev->set_status ($execution_status)	2247	=item $ev->set_status ($execution_status)
1869		2248
1870	Sets the execution status of the user event. Can only be called once,	2249	Sets the execution status of the user event. Can only be called once,
1871	either with OpenCL::COMPLETE or a negative number as status.	2250	either with OpenCL::COMPLETE or a negative number as status.
1872		2251
		2252	execution_status: OpenCL::COMPLETE or a negative integer.
		2253
1873	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clSetUserEventStatus.html>	2254	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clSetUserEventStatus.html>
		2255
		2256	=back
		2257
		2258	=head2 THE OpenCL::Mapped CLASS
		2259
		2260	This class represents objects mapped into host memory. They are
		2261	represented by a blessed string scalar. The string data is the mapped
		2262	memory area, that is, if you read or write it, then the mapped object is
		2263	accessed directly.
		2264
		2265	You must only ever use operations that modify the string in-place - for
		2266	example, a C<substr> that doesn't change the length, or maybe a regex that
		2267	doesn't change the length. Any other operation might cause the data to be
		2268	copied.
		2269
		2270	When the object is destroyed it will enqueue an implicit unmap operation
		2271	on the queue that was used to create it.
		2272
		2273	Keep in mind that you I<need> to unmap (or destroy) mapped objects before
		2274	OpenCL sees the changes, even if some implementations don't need this
		2275	sometimes.
		2276
		2277	Example, replace the first two floats in the mapped buffer by 1 and 2.
		2278
		2279	my $mapped = $queue->map_buffer ($buf, ...
		2280	$mapped->event->wait; # make sure it's there
		2281
		2282	# now replace first 8 bytes by new data, which is exactly 8 bytes long
		2283	# we blindly assume device endianness to equal host endianness
		2284	# (and of course, we assume iee 754 single precision floats :)
		2285	substr $$mapped, 0, 8, pack "f*", 1, 2;
		2286
		2287	=over 4
		2288
		2289	=item $ev = $mapped->unmap ($wait_events...)
		2290
		2291	Unmaps the mapped memory object, using the queue originally used to create
		2292	it, quite similarly to C<< $queue->unmap ($mapped, ...) >>.
		2293
		2294	=item $bool = $mapped->mapped
		2295
		2296	Returns whether the object is still mapped - true before an C<unmap> is
		2297	enqueued, false afterwards.
		2298
		2299	=item $ev = $mapped->event
		2300
		2301	Return the event object associated with the mapped object. Initially, this
		2302	will be the event object created when mapping the object, and after an
		2303	unmap, this will be the event object that the unmap operation created.
		2304
		2305	=item $mapped->wait
		2306
		2307	Same as C<< $mapped->event->wait >> - makes sure no operations on this
		2308	mapped object are outstanding.
		2309
		2310	=item $bytes = $mapped->size
		2311
		2312	Returns the size of the mapped area, in bytes. Same as C<length $$mapped>.
		2313
		2314	=item $ptr = $mapped->ptr
		2315
		2316	Returns the raw memory address of the mapped area.
		2317
		2318	=item $mapped->set ($offset, $data)
		2319
		2320	Replaces the data at the given C<$offset> in the memory area by the new
		2321	C<$data>. This method is safer than direct manipulation of C<$mapped>
		2322	because it does bounds-checking, but also slower.
		2323
		2324	=item $data = $mapped->get ($offset, $length)
		2325
		2326	Returns (without copying) a scalar representing the data at the given
		2327	C<$offset> and C<$length> in the mapped memory area. This is the same as
		2328	the following substr, except much slower;
		2329
		2330	$data = substr $$mapped, $offset, $length
		2331
		2332	=cut
		2333
		2334	sub OpenCL::Mapped::get {
		2335	substr ${$_[0]}, $_[1], $_[2]
		2336	}
		2337
		2338	=back
		2339
		2340	=head2 THE OpenCL::MappedBuffer CLASS
		2341
		2342	This is a subclass of OpenCL::Mapped, representing mapped buffers.
		2343
		2344	=head2 THE OpenCL::MappedImage CLASS
		2345
		2346	This is a subclass of OpenCL::Mapped, representing mapped images.
		2347
		2348	=over 4
		2349
		2350	=item $pixels = $mapped->width
		2351
		2352	=item $pixels = $mapped->height
		2353
		2354	=item $pixels = $mapped->depth
		2355
		2356	Return the width/height/depth of the mapped image region, in pixels.
		2357
		2358	=item $bytes = $mapped->row_pitch
		2359
		2360	=item $bytes = $mapped->slice_pitch
		2361
		2362	Return the row or slice pitch of the image that has been mapped.
		2363
		2364	=item $bytes = $mapped->element_size
		2365
		2366	Return the size of a single pixel.
		2367
		2368	=item $data = $mapped->get_row ($count, $x=0, $y=0, $z=0)
		2369
		2370	Return C<$count> pixels from the given coordinates. The pixel data must
		2371	be completely contained within a single row.
		2372
		2373	If C<$count> is C<undef>, then all the remaining pixels in that row are
		2374	returned.
		2375
		2376	=item $mapped->set_row ($data, $x=0, $y=0, $z=0)
		2377
		2378	Write the given pixel data at the given coordinate. The pixel data must
		2379	be completely contained within a single row.
1874		2380
1875	=back	2381	=back
1876		2382
1877	=cut	2383	=cut
1878		2384

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