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Revision 1.56 by root, Tue Apr 24 23:53:12 2012 UTC vs.
Revision 1.77 by root, Sat May 5 12:54:03 2012 UTC

…		…
43		43
44	OpenCL::Event objects are used to signal when something is complete.	44	OpenCL::Event objects are used to signal when something is complete.
45		45
46	=head2 HELPFUL RESOURCES	46	=head2 HELPFUL RESOURCES
47		47
48	The OpenCL spec used to develop this module (1.2 spec was available, but	48	The OpenCL specs used to develop this module - download these and keept
49	no implementation was available to me :).	49	hema round, they are required reference material:
50		50
51	http://www.khronos.org/registry/cl/specs/opencl-1.1.pdf	51	http://www.khronos.org/registry/cl/specs/opencl-1.1.pdf
		52	http://www.khronos.org/registry/cl/specs/opencl-1.2.pdf
		53	http://www.khronos.org/registry/cl/specs/opencl-1.2-extensions.pdf
52		54
53	OpenCL manpages:	55	OpenCL manpages:
54		56
55	http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/	57	http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/
		58	http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/
56		59
57	If you are into UML class diagrams, the following diagram might help - if	60	If you are into UML class diagrams, the following diagram might help - if
58	not, it will be mildly cobfusing:	61	not, it will be mildly confusing (also, the class hierarchy of this module
		62	is much more fine-grained):
59		63
60	http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/classDiagram.html	64	http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/classDiagram.html
61		65
62	Here's a tutorial from AMD (very AMD-centric, too), not sure how useful it	66	Here's a tutorial from AMD (very AMD-centric, too), not sure how useful it
63	is, but at least it's free of charge:	67	is, but at least it's free of charge:
64		68
65	http://developer.amd.com/zones/OpenCLZone/courses/Documents/Introduction_to_OpenCL_Programming%20Training_Guide%20%28201005%29.pdf	69	http://developer.amd.com/zones/OpenCLZone/courses/Documents/Introduction_to_OpenCL_Programming%20Training_Guide%20%28201005%29.pdf
…		…
92	initialised at creation time).	96	initialised at creation time).
93		97
94	Enqueue the kernel execution.	98	Enqueue the kernel execution.
95		99
96	Enqueue buffer reads for your output buffer to read results.	100	Enqueue buffer reads for your output buffer to read results.
		101
		102	=head1 OPENCL 1.1 VS. OPENCL 1.2
		103
		104	This module supports both OpenCL version 1.1 and 1.2, although the OpenCL
		105	1.2 interface hasn't been tested much for lack of availability of an
		106	actual implementation.
		107
		108	Every function or method in this manual page that interfaces to a
		109	particular OpenCL function has a link to the its C manual page.
		110
		111	If the link contains a F<1.1>, then this function is an OpenCL 1.1
		112	function. Most but not all also exist in OpenCL 1.2, and this module
		113	tries to emulate the missing ones for you, when told to do so at
		114	compiletime. You cna check whether a function was removed in OpenCL 1.2 by
		115	replacing the F<1.1> component in the URL by F<1.2>.
		116
		117	If the link contains a F<1.2>, then this is a OpenCL 1.2-only
		118	function. Even if the module was compiled with OpenCL 1.2 header files
		119	and has an 1.2 OpenCL library, calling such a function on a platform that
		120	doesn't implement 1.2 causes undefined behaviour, usually a crash (But
		121	this is not guaranteed).
		122
		123	You can find out whether this module was compiled to prefer 1.1
		124	functionality by ooking at C<OpenCL::PREFER_1_1> - if it is true, then
		125	1.1 functions generally are implemented using 1.1 OpenCL functions. If it
		126	is false, then 1.1 functions missing from 1.2 are emulated by calling 1.2
		127	fucntions.
		128
		129	This is a somewhat sorry state of affairs, but the Khronos group choose to
		130	make every release of OpenCL source and binary incompatible with previous
		131	releases.
97		132
98	=head1 EXAMPLES	133	=head1 EXAMPLES
99		134
100	=head2 Enumerate all devices and get contexts for them.	135	=head2 Enumerate all devices and get contexts for them.
101		136
…		…
138	=head2 Create a buffer with some predefined data, read it back synchronously,	173	=head2 Create a buffer with some predefined data, read it back synchronously,
139	then asynchronously.	174	then asynchronously.
140		175
141	my $buf = $ctx->buffer_sv (OpenCL::MEM_COPY_HOST_PTR, "helmut");	176	my $buf = $ctx->buffer_sv (OpenCL::MEM_COPY_HOST_PTR, "helmut");
142		177
143	$queue->enqueue_read_buffer ($buf, 1, 1, 3, my $data);	178	$queue->read_buffer ($buf, 1, 1, 3, my $data);
144	print "$data\n";	179	print "$data\n";
145		180
146	my $ev = $queue->enqueue_read_buffer ($buf, 0, 1, 3, my $data);	181	my $ev = $queue->read_buffer ($buf, 0, 1, 3, my $data);
147	$ev->wait;	182	$ev->wait;
148	print "$data\n"; # prints "elm"	183	print "$data\n"; # prints "elm"
149		184
150	=head2 Create and build a program, then create a kernel out of one of its	185	=head2 Create and build a program, then create a kernel out of one of its
151	functions.	186	functions.
…		…
171	# set buffer	206	# set buffer
172	$kernel->set_buffer (0, $input);	207	$kernel->set_buffer (0, $input);
173	$kernel->set_buffer (1, $output);	208	$kernel->set_buffer (1, $output);
174		209
175	# execute it for all 4 numbers	210	# execute it for all 4 numbers
176	$queue->enqueue_nd_range_kernel ($kernel, undef, [4], undef);	211	$queue->nd_range_kernel ($kernel, undef, [4], undef);
177		212
178	# enqueue a synchronous read	213	# enqueue a synchronous read
179	$queue->enqueue_read_buffer ($output, 1, 0, OpenCL::SIZEOF_FLOAT * 4, my $data);	214	$queue->read_buffer ($output, 1, 0, OpenCL::SIZEOF_FLOAT * 4, my $data);
180		215
181	# print the results:	216	# print the results:
182	printf "%s\n", join ", ", unpack "f*", $data;	217	printf "%s\n", join ", ", unpack "f*", $data;
183		218
184	=head2 The same enqueue operations as before, but assuming an out-of-order queue,	219	=head2 The same enqueue operations as before, but assuming an out-of-order queue,
185	showing off barriers.	220	showing off barriers.
186		221
187	# execute it for all 4 numbers	222	# execute it for all 4 numbers
188	$queue->enqueue_nd_range_kernel ($kernel, undef, [4], undef);	223	$queue->nd_range_kernel ($kernel, undef, [4], undef);
189		224
190	# enqueue a barrier to ensure in-order execution	225	# enqueue a barrier to ensure in-order execution
191	$queue->enqueue_barrier;	226	$queue->barrier;
192		227
193	# enqueue an async read	228	# enqueue an async read
194	$queue->enqueue_read_buffer ($output, 0, 0, OpenCL::SIZEOF_FLOAT * 4, my $data);	229	$queue->read_buffer ($output, 0, 0, OpenCL::SIZEOF_FLOAT * 4, my $data);
195		230
196	# wait for all requests to finish	231	# wait for all requests to finish
197	$queue->finish;	232	$queue->finish;
198		233
199	=head2 The same enqueue operations as before, but assuming an out-of-order queue,	234	=head2 The same enqueue operations as before, but assuming an out-of-order queue,
200	showing off event objects and wait lists.	235	showing off event objects and wait lists.
201		236
202	# execute it for all 4 numbers	237	# execute it for all 4 numbers
203	my $ev = $queue->enqueue_nd_range_kernel ($kernel, undef, [4], undef);	238	my $ev = $queue->nd_range_kernel ($kernel, undef, [4], undef);
204		239
205	# enqueue an async read	240	# enqueue an async read
206	$ev = $queue->enqueue_read_buffer ($output, 0, 0, OpenCL::SIZEOF_FLOAT * 4, my $data, $ev);	241	$ev = $queue->read_buffer ($output, 0, 0, OpenCL::SIZEOF_FLOAT * 4, my $data, $ev);
207		242
208	# wait for the last event to complete	243	# wait for the last event to complete
209	$ev->wait;	244	$ev->wait;
210		245
211	=head2 Use the OpenGL module to share a texture between OpenCL and OpenGL and draw some julia	246	=head2 Use the OpenGL module to share a texture between OpenCL and OpenGL and draw some julia
212	set tunnel effect.	247	set flight effect.
213		248
214	This is quite a long example to get you going.	249	This is quite a long example to get you going - you can download it from
		250	L<http://cvs.schmorp.de/OpenCL/examples/juliaflight>.
215		251
216	use OpenGL ":all";	252	use OpenGL ":all";
217	use OpenCL;	253	use OpenCL;
218		254
		255	my $S = $ARGV[0] || 256; # window/texture size, smaller is faster
		256
219	# open a window and create a gl texture	257	# open a window and create a gl texture
220	OpenGL::glpOpenWindow width => 256, height => 256;	258	OpenGL::glpOpenWindow width => $S, height => $S;
221	my $texid = glGenTextures_p 1;	259	my $texid = glGenTextures_p 1;
222	glBindTexture GL_TEXTURE_2D, $texid;	260	glBindTexture GL_TEXTURE_2D, $texid;
223	glTexImage2D_c GL_TEXTURE_2D, 0, GL_RGBA8, 256, 256, 0, GL_RGBA, GL_UNSIGNED_BYTE, 0;	261	glTexImage2D_c GL_TEXTURE_2D, 0, GL_RGBA8, $S, $S, 0, GL_RGBA, GL_UNSIGNED_BYTE, 0;
224		262
225	# find and use the first opencl device that let's us get a shared opengl context	263	# find and use the first opencl device that let's us get a shared opengl context
226	my $platform;	264	my $platform;
227	my $dev;	265	my $dev;
228	my $ctx;	266	my $ctx;
…		…
247	# now the boring opencl code	285	# now the boring opencl code
248	my $src = <<EOF;	286	my $src = <<EOF;
249	kernel void	287	kernel void
250	juliatunnel (write_only image2d_t img, float time)	288	juliatunnel (write_only image2d_t img, float time)
251	{	289	{
252	float2 p = (float2)(get_global_id (0), get_global_id (1)) / 256.f * 2.f - 1.f;	290	int2 xy = (int2)(get_global_id (0), get_global_id (1));
		291	float2 p = convert_float2 (xy) / $S.f * 2.f - 1.f;
253		292
254	float2 m = (float2)(1.f, p.y) / fabs (p.x);	293	float2 m = (float2)(1.f, p.y) / fabs (p.x); // tunnel
255	m.x = fabs (fmod (m.x + time * 0.05f, 4.f)) - 2.f;	294	m.x = fabs (fmod (m.x + time * 0.05f, 4.f) - 2.f);
256		295
257	float2 z = m;	296	float2 z = m;
258	float2 c = (float2)(sin (time * 0.05005), cos (time * 0.06001));	297	float2 c = (float2)(sin (time * 0.01133f), cos (time * 0.02521f));
259		298
260	for (int i = 0; i < 25 && dot (z, z) < 4.f; ++i)	299	for (int i = 0; i < 25 && dot (z, z) < 4.f; ++i) // standard julia
261	z = (float2)(z.x * z.x - z.y * z.y, 2.f * z.x * z.y) + c;	300	z = (float2)(z.x * z.x - z.y * z.y, 2.f * z.x * z.y) + c;
262		301
263	float3 colour = (float3)(z.x, z.y, z.x * z.y);	302	float3 colour = (float3)(z.x, z.y, atan2 (z.y, z.x));
264	write_imagef (img, (int2)(get_global_id (0), get_global_id (1)), (float4)(colour * p.x * p.x, 1.));	303	write_imagef (img, xy, (float4)(colour * p.x * p.x, 1.));
265	}	304	}
266	EOF	305	EOF
267		306
268	my $prog = $ctx->build_program ($src);	307	my $prog = $ctx->build_program ($src);
269	my $kernel = $prog->kernel ("juliatunnel");	308	my $kernel = $prog->kernel ("juliatunnel");
270		309
271	# program compiled, kernel ready, now draw and loop	310	# program compiled, kernel ready, now draw and loop
272		311
273	for (my $time; ; ++$time) {	312	for (my $time; ; ++$time) {
274	# acquire objects from opengl	313	# acquire objects from opengl
275	$queue->enqueue_acquire_gl_objects ([$tex]);	314	$queue->acquire_gl_objects ([$tex]);
276		315
277	# configure and run our kernel	316	# configure and run our kernel
278	$kernel->set_image2d (0, $tex);	317	$kernel->setf ("mf", $tex, $time*2); # mf = memory object, float
279	$kernel->set_float (1, $time);
280	$queue->enqueue_nd_range_kernel ($kernel, undef, [256, 256], undef);	318	$queue->nd_range_kernel ($kernel, undef, [$S, $S], undef);
281		319
282	# release objects to opengl again	320	# release objects to opengl again
283	$queue->enqueue_release_gl_objects ([$tex]);	321	$queue->release_gl_objects ([$tex]);
284		322
285	# wait	323	# wait
286	$queue->finish;	324	$queue->finish;
287		325
288	# now draw the texture, the defaults should be all right	326	# now draw the texture, the defaults should be all right
…		…
298		336
299	glXSwapBuffers;	337	glXSwapBuffers;
300		338
301	select undef, undef, undef, 1/60;	339	select undef, undef, undef, 1/60;
302	}	340	}
		341
		342	=head2 How to modify the previous example to not rely on GL sharing.
		343
		344	For those poor souls with only a sucky CPU OpenCL implementation, you
		345	currently have to read the image into some perl scalar, and then modify a
		346	texture or use glDrawPixels or so).
		347
		348	First, when you don't need gl sharing, you can create the context much simpler:
		349
		350	$ctx = $platform->context (undef, [$dev])
		351
		352	To use a texture, you would modify the above example by creating an
		353	OpenCL::Image manually instead of deriving it from a texture:
		354
		355	my $tex = $ctx->image2d (OpenCL::MEM_WRITE_ONLY, OpenCL::RGBA, OpenCL::UNORM_INT8, $S, $S);
		356
		357	And in the draw loop, intead of acquire_gl_objects/release_gl_objects, you
		358	would read the image2d after the kernel has written it:
		359
		360	$queue->read_image ($tex, 0, 0, 0, 0, $S, $S, 1, 0, 0, my $data);
		361
		362	And then you would upload the pixel data to the texture (or use glDrawPixels):
		363
		364	glTexSubImage2D_s GL_TEXTURE_2D, 0, 0, 0, $S, $S, GL_RGBA, GL_UNSIGNED_BYTE, $data;
		365
		366	The fully modified example can be found at
		367	L<http://cvs.schmorp.de/OpenCL/examples/juliaflight-nosharing>.
		368
		369	=head2 Julia sets look soooo 80ies.
		370
		371	Then colour them differently, e.g. using orbit traps! Replace the loop and
		372	colour calculation from the previous examples by this:
		373
		374	float2 dm = (float2)(1.f, 1.f);
		375
		376	for (int i = 0; i < 25; ++i)
		377	{
		378	z = (float2)(z.x * z.x - z.y * z.y, 2.f * z.x * z.y) + c;
		379	dm = fmin (dm, (float2)(fabs (dot (z, z) - 1.f), fabs (z.x - 1.f)));
		380	}
		381
		382	float3 colour = (float3)(dm.x * dm.y, dm.x * dm.y, dm.x);
		383
		384	Also try C<-10.f> instead of C<-1.f>.
303		385
304	=head1 DOCUMENTATION	386	=head1 DOCUMENTATION
305		387
306	=head2 BASIC CONVENTIONS	388	=head2 BASIC CONVENTIONS
307		389
…		…
383	OpenCL can generate a number of (potentially) asynchronous events, for	465	OpenCL can generate a number of (potentially) asynchronous events, for
384	example, after compiling a program, to signal a context-related error or,	466	example, after compiling a program, to signal a context-related error or,
385	perhaps most important, to signal completion of queued jobs (by setting	467	perhaps most important, to signal completion of queued jobs (by setting
386	callbacks on OpenCL::Event objects).	468	callbacks on OpenCL::Event objects).
387		469
		470	The OpenCL module converts all these callbacks into events - you can
		471	still register callbacks, but they are not executed when your OpenCL
		472	implementation calls the actual callback, but only later. Therefore, none
		473	of the limitations of OpenCL callbacks apply to the perl implementation:
		474	it is perfectly safe to make blocking operations from event callbacks, and
		475	enqueued operations don't need to be flushed.
		476
388	To facilitate this, this module maintains an event queue - each	477	To facilitate this, this module maintains an event queue - each
389	time an asynchronous event happens, it is queued, and perl will be	478	time an asynchronous event happens, it is queued, and perl will be
390	interrupted. This is implemented via the L<Async::Interrupt> module. In	479	interrupted. This is implemented via the L<Async::Interrupt> module. In
391	addition, this module has L<AnyEvent> support, so it can seamlessly	480	addition, this module has L<AnyEvent> support, so it can seamlessly
392	integrate itself into many event loops.	481	integrate itself into many event loops.
393		482
394	Since this module is a bit hard to understand, here are some case examples:	483	Since L<Async::Interrupt> is a bit hard to understand, here are some case examples:
395		484
396	=head3 Don't use callbacks.	485	=head3 Don't use callbacks.
397		486
398	When your program never uses any callbacks, then there will never be any	487	When your program never uses any callbacks, then there will never be any
399	notifications you need to take care of, and therefore no need to worry	488	notifications you need to take care of, and therefore no need to worry
…		…
417	use AnyEvent;	506	use AnyEvent;
418		507
419	# initialise AnyEvent, by creating a watcher, or:	508	# initialise AnyEvent, by creating a watcher, or:
420	AnyEvent::detect;	509	AnyEvent::detect;
421		510
422	my $e = $queue->enqueue_marker;	511	my $e = $queue->marker;
423	$e->cb (sub {	512	$e->cb (sub {
424	warn "opencl is finished\n";	513	warn "opencl is finished\n";
425	})	514	})
426		515
427	main Gtk2;	516	main Gtk2;
…		…
444	Asynchronously means that perl might execute your callbacks at any	533	Asynchronously means that perl might execute your callbacks at any
445	time. For example, in the following code (I<THAT YOU SHOULD NOT COPY>),	534	time. For example, in the following code (I<THAT YOU SHOULD NOT COPY>),
446	the C<until> loop following the marker call will be interrupted by the	535	the C<until> loop following the marker call will be interrupted by the
447	callback:	536	callback:
448		537
449	my $e = $queue->enqueue_marker;	538	my $e = $queue->marker;
450	my $flag;	539	my $flag;
451	$e->cb (sub { $flag = 1 });	540	$e->cb (sub { $flag = 1 });
452	1 until $flag;	541	1 until $flag;
453	# $flag is now 1	542	# $flag is now 1
454		543
…		…
490	=cut	579	=cut
491		580
492	package OpenCL;	581	package OpenCL;
493		582
494	use common::sense;	583	use common::sense;
		584	use Carp ();
495	use Async::Interrupt ();	585	use Async::Interrupt ();
496		586
497	our $POLL_FUNC; # set by XS	587	our $POLL_FUNC; # set by XS
498		588
499	BEGIN {	589	BEGIN {
500	our $VERSION = '0.97';	590	our $VERSION = '0.99';
501		591
502	require XSLoader;	592	require XSLoader;
503	XSLoader::load (__PACKAGE__, $VERSION);	593	XSLoader::load (__PACKAGE__, $VERSION);
504		594
505	@OpenCL::Platform::ISA =	595	@OpenCL::Platform::ISA =
…		…
510	@OpenCL::Sampler::ISA =	600	@OpenCL::Sampler::ISA =
511	@OpenCL::Program::ISA =	601	@OpenCL::Program::ISA =
512	@OpenCL::Kernel::ISA =	602	@OpenCL::Kernel::ISA =
513	@OpenCL::Event::ISA = OpenCL::Object::;	603	@OpenCL::Event::ISA = OpenCL::Object::;
514		604
		605	@OpenCL::SubDevice::ISA = OpenCL::Device::;
		606
515	@OpenCL::Buffer::ISA =	607	@OpenCL::Buffer::ISA =
516	@OpenCL::Image::ISA = OpenCL::Memory::;	608	@OpenCL::Image::ISA = OpenCL::Memory::;
517		609
518	@OpenCL::BufferObj::ISA = OpenCL::Buffer::;	610	@OpenCL::BufferObj::ISA = OpenCL::Buffer::;
519		611
…		…
523	@OpenCL::Image1D::ISA =	615	@OpenCL::Image1D::ISA =
524	@OpenCL::Image1DArray::ISA =	616	@OpenCL::Image1DArray::ISA =
525	@OpenCL::Image1DBuffer::ISA = OpenCL::Image::;	617	@OpenCL::Image1DBuffer::ISA = OpenCL::Image::;
526		618
527	@OpenCL::UserEvent::ISA = OpenCL::Event::;	619	@OpenCL::UserEvent::ISA = OpenCL::Event::;
		620
		621	@OpenCL::MappedBuffer::ISA =
		622	@OpenCL::MappedImage::ISA = OpenCL::Mapped::;
528	}	623	}
529		624
530	=head2 THE OpenCL PACKAGE	625	=head2 THE OpenCL PACKAGE
531		626
532	=over 4	627	=over 4
…		…
534	=item $int = OpenCL::errno	629	=item $int = OpenCL::errno
535		630
536	The last error returned by a function - it's only valid after an error occured	631	The last error returned by a function - it's only valid after an error occured
537	and before calling another OpenCL function.	632	and before calling another OpenCL function.
538		633
539	=item $str = OpenCL::err2str $errval	634	=item $str = OpenCL::err2str [$errval]
540		635
541	Comverts an error value into a human readable string.	636	Converts an error value into a human readable string. IF no error value is
		637	given, then the last error will be used (as returned by OpenCL::errno).
542		638
543	=item $str = OpenCL::enum2str $enum	639	=item $str = OpenCL::enum2str $enum
544		640
545	Converts most enum values (of parameter names, image format constants,	641	Converts most enum values (of parameter names, image format constants,
546	object types, addressing and filter modes, command types etc.) into a	642	object types, addressing and filter modes, command types etc.) into a
…		…
555	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetPlatformIDs.html>	651	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetPlatformIDs.html>
556		652
557	=item $ctx = OpenCL::context_from_type $properties, $type = OpenCL::DEVICE_TYPE_DEFAULT, $callback->($err, $pvt) = $print_stderr	653	=item $ctx = OpenCL::context_from_type $properties, $type = OpenCL::DEVICE_TYPE_DEFAULT, $callback->($err, $pvt) = $print_stderr
558		654
559	Tries to create a context from a default device and platform type - never worked for me.	655	Tries to create a context from a default device and platform type - never worked for me.
		656	Consider using C<< $platform->context_from_type >> instead.
		657
		658	type: OpenCL::DEVICE_TYPE_DEFAULT, OpenCL::DEVICE_TYPE_CPU, OpenCL::DEVICE_TYPE_GPU,
		659	OpenCL::DEVICE_TYPE_ACCELERATOR, OpenCL::DEVICE_TYPE_CUSTOM, OpenCL::DEVICE_TYPE_ALL.
560		660
561	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateContextFromType.html>	661	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateContextFromType.html>
562		662
563	=item $ctx = OpenCL::context $properties, \@devices, $callback->($err, $pvt) = $print_stderr)	663	=item $ctx = OpenCL::context $properties, \@devices, $callback->($err, $pvt) = $print_stderr)
564		664
565	Create a new OpenCL::Context object using the given device object(s). This	665	Create a new OpenCL::Context object using the given device object(s).
566	function isn't implemented yet, use C<< $platform->context >> instead.	666	Consider using C<< $platform->context >> instead.
567		667
568	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateContext.html>	668	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateContext.html>
569		669
570	=item OpenCL::wait_for_events $wait_events...	670	=item OpenCL::wait_for_events $wait_events...
571		671
…		…
678		778
679	=for gengetinfo begin platform	779	=for gengetinfo begin platform
680		780
681	=item $string = $platform->profile	781	=item $string = $platform->profile
682		782
683	Calls C<clGetPlatformInfo> with C<CL_PLATFORM_PROFILE> and returns the result.	783	Calls C<clGetPlatformInfo> with C<OpenCL::PLATFORM_PROFILE> and returns the result.
684		784
685	=item $string = $platform->version	785	=item $string = $platform->version
686		786
687	Calls C<clGetPlatformInfo> with C<CL_PLATFORM_VERSION> and returns the result.	787	Calls C<clGetPlatformInfo> with C<OpenCL::PLATFORM_VERSION> and returns the result.
688		788
689	=item $string = $platform->name	789	=item $string = $platform->name
690		790
691	Calls C<clGetPlatformInfo> with C<CL_PLATFORM_NAME> and returns the result.	791	Calls C<clGetPlatformInfo> with C<OpenCL::PLATFORM_NAME> and returns the result.
692		792
693	=item $string = $platform->vendor	793	=item $string = $platform->vendor
694		794
695	Calls C<clGetPlatformInfo> with C<CL_PLATFORM_VENDOR> and returns the result.	795	Calls C<clGetPlatformInfo> with C<OpenCL::PLATFORM_VENDOR> and returns the result.
696		796
697	=item $string = $platform->extensions	797	=item $string = $platform->extensions
698		798
699	Calls C<clGetPlatformInfo> with C<CL_PLATFORM_EXTENSIONS> and returns the result.	799	Calls C<clGetPlatformInfo> with C<OpenCL::PLATFORM_EXTENSIONS> and returns the result.
700		800
701	=for gengetinfo end platform	801	=for gengetinfo end platform
702		802
703	=back	803	=back
704		804
…		…
710		810
711	See C<< $platform->info >> for details.	811	See C<< $platform->info >> for details.
712		812
713	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetDeviceInfo.html>	813	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetDeviceInfo.html>
714		814
		815	=item @devices = $device->sub_devices (\@properties)
		816
		817	Creates OpencL::SubDevice objects by partitioning an existing device.
		818
		819	L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clCreateSubDevices.html>
		820
715	=for gengetinfo begin device	821	=for gengetinfo begin device
716		822
717	=item $device_type = $device->type	823	=item $device_type = $device->type
718		824
719	Calls C<clGetDeviceInfo> with C<CL_DEVICE_TYPE> and returns the result.	825	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_TYPE> and returns the result.
720		826
721	=item $uint = $device->vendor_id	827	=item $uint = $device->vendor_id
722		828
723	Calls C<clGetDeviceInfo> with C<CL_DEVICE_VENDOR_ID> and returns the result.	829	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_VENDOR_ID> and returns the result.
724		830
725	=item $uint = $device->max_compute_units	831	=item $uint = $device->max_compute_units
726		832
727	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_COMPUTE_UNITS> and returns the result.	833	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MAX_COMPUTE_UNITS> and returns the result.
728		834
729	=item $uint = $device->max_work_item_dimensions	835	=item $uint = $device->max_work_item_dimensions
730		836
731	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_WORK_ITEM_DIMENSIONS> and returns the result.	837	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MAX_WORK_ITEM_DIMENSIONS> and returns the result.
732		838
733	=item $int = $device->max_work_group_size	839	=item $int = $device->max_work_group_size
734		840
735	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_WORK_GROUP_SIZE> and returns the result.	841	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MAX_WORK_GROUP_SIZE> and returns the result.
736		842
737	=item @ints = $device->max_work_item_sizes	843	=item @ints = $device->max_work_item_sizes
738		844
739	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_WORK_ITEM_SIZES> and returns the result.	845	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MAX_WORK_ITEM_SIZES> and returns the result.
740		846
741	=item $uint = $device->preferred_vector_width_char	847	=item $uint = $device->preferred_vector_width_char
742		848
743	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PREFERRED_VECTOR_WIDTH_CHAR> and returns the result.	849	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PREFERRED_VECTOR_WIDTH_CHAR> and returns the result.
744		850
745	=item $uint = $device->preferred_vector_width_short	851	=item $uint = $device->preferred_vector_width_short
746		852
747	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PREFERRED_VECTOR_WIDTH_SHORT> and returns the result.	853	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PREFERRED_VECTOR_WIDTH_SHORT> and returns the result.
748		854
749	=item $uint = $device->preferred_vector_width_int	855	=item $uint = $device->preferred_vector_width_int
750		856
751	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PREFERRED_VECTOR_WIDTH_INT> and returns the result.	857	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PREFERRED_VECTOR_WIDTH_INT> and returns the result.
752		858
753	=item $uint = $device->preferred_vector_width_long	859	=item $uint = $device->preferred_vector_width_long
754		860
755	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PREFERRED_VECTOR_WIDTH_LONG> and returns the result.	861	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PREFERRED_VECTOR_WIDTH_LONG> and returns the result.
756		862
757	=item $uint = $device->preferred_vector_width_float	863	=item $uint = $device->preferred_vector_width_float
758		864
759	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PREFERRED_VECTOR_WIDTH_FLOAT> and returns the result.	865	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PREFERRED_VECTOR_WIDTH_FLOAT> and returns the result.
760		866
761	=item $uint = $device->preferred_vector_width_double	867	=item $uint = $device->preferred_vector_width_double
762		868
763	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PREFERRED_VECTOR_WIDTH_DOUBLE> and returns the result.	869	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PREFERRED_VECTOR_WIDTH_DOUBLE> and returns the result.
764		870
765	=item $uint = $device->max_clock_frequency	871	=item $uint = $device->max_clock_frequency
766		872
767	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_CLOCK_FREQUENCY> and returns the result.	873	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MAX_CLOCK_FREQUENCY> and returns the result.
768		874
769	=item $bitfield = $device->address_bits	875	=item $bitfield = $device->address_bits
770		876
771	Calls C<clGetDeviceInfo> with C<CL_DEVICE_ADDRESS_BITS> and returns the result.	877	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_ADDRESS_BITS> and returns the result.
772		878
773	=item $uint = $device->max_read_image_args	879	=item $uint = $device->max_read_image_args
774		880
775	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_READ_IMAGE_ARGS> and returns the result.	881	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MAX_READ_IMAGE_ARGS> and returns the result.
776		882
777	=item $uint = $device->max_write_image_args	883	=item $uint = $device->max_write_image_args
778		884
779	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_WRITE_IMAGE_ARGS> and returns the result.	885	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MAX_WRITE_IMAGE_ARGS> and returns the result.
780		886
781	=item $ulong = $device->max_mem_alloc_size	887	=item $ulong = $device->max_mem_alloc_size
782		888
783	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_MEM_ALLOC_SIZE> and returns the result.	889	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MAX_MEM_ALLOC_SIZE> and returns the result.
784		890
785	=item $int = $device->image2d_max_width	891	=item $int = $device->image2d_max_width
786		892
787	Calls C<clGetDeviceInfo> with C<CL_DEVICE_IMAGE2D_MAX_WIDTH> and returns the result.	893	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_IMAGE2D_MAX_WIDTH> and returns the result.
788		894
789	=item $int = $device->image2d_max_height	895	=item $int = $device->image2d_max_height
790		896
791	Calls C<clGetDeviceInfo> with C<CL_DEVICE_IMAGE2D_MAX_HEIGHT> and returns the result.	897	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_IMAGE2D_MAX_HEIGHT> and returns the result.
792		898
793	=item $int = $device->image3d_max_width	899	=item $int = $device->image3d_max_width
794		900
795	Calls C<clGetDeviceInfo> with C<CL_DEVICE_IMAGE3D_MAX_WIDTH> and returns the result.	901	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_IMAGE3D_MAX_WIDTH> and returns the result.
796		902
797	=item $int = $device->image3d_max_height	903	=item $int = $device->image3d_max_height
798		904
799	Calls C<clGetDeviceInfo> with C<CL_DEVICE_IMAGE3D_MAX_HEIGHT> and returns the result.	905	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_IMAGE3D_MAX_HEIGHT> and returns the result.
800		906
801	=item $int = $device->image3d_max_depth	907	=item $int = $device->image3d_max_depth
802		908
803	Calls C<clGetDeviceInfo> with C<CL_DEVICE_IMAGE3D_MAX_DEPTH> and returns the result.	909	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_IMAGE3D_MAX_DEPTH> and returns the result.
804		910
805	=item $uint = $device->image_support	911	=item $uint = $device->image_support
806		912
807	Calls C<clGetDeviceInfo> with C<CL_DEVICE_IMAGE_SUPPORT> and returns the result.	913	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_IMAGE_SUPPORT> and returns the result.
808		914
809	=item $int = $device->max_parameter_size	915	=item $int = $device->max_parameter_size
810		916
811	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_PARAMETER_SIZE> and returns the result.	917	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MAX_PARAMETER_SIZE> and returns the result.
812		918
813	=item $uint = $device->max_samplers	919	=item $uint = $device->max_samplers
814		920
815	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_SAMPLERS> and returns the result.	921	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MAX_SAMPLERS> and returns the result.
816		922
817	=item $uint = $device->mem_base_addr_align	923	=item $uint = $device->mem_base_addr_align
818		924
819	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MEM_BASE_ADDR_ALIGN> and returns the result.	925	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MEM_BASE_ADDR_ALIGN> and returns the result.
820		926
821	=item $uint = $device->min_data_type_align_size	927	=item $uint = $device->min_data_type_align_size
822		928
823	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MIN_DATA_TYPE_ALIGN_SIZE> and returns the result.	929	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MIN_DATA_TYPE_ALIGN_SIZE> and returns the result.
824		930
825	=item $device_fp_config = $device->single_fp_config	931	=item $device_fp_config = $device->single_fp_config
826		932
827	Calls C<clGetDeviceInfo> with C<CL_DEVICE_SINGLE_FP_CONFIG> and returns the result.	933	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_SINGLE_FP_CONFIG> and returns the result.
828		934
829	=item $device_mem_cache_type = $device->global_mem_cache_type	935	=item $device_mem_cache_type = $device->global_mem_cache_type
830		936
831	Calls C<clGetDeviceInfo> with C<CL_DEVICE_GLOBAL_MEM_CACHE_TYPE> and returns the result.	937	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_GLOBAL_MEM_CACHE_TYPE> and returns the result.
832		938
833	=item $uint = $device->global_mem_cacheline_size	939	=item $uint = $device->global_mem_cacheline_size
834		940
835	Calls C<clGetDeviceInfo> with C<CL_DEVICE_GLOBAL_MEM_CACHELINE_SIZE> and returns the result.	941	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_GLOBAL_MEM_CACHELINE_SIZE> and returns the result.
836		942
837	=item $ulong = $device->global_mem_cache_size	943	=item $ulong = $device->global_mem_cache_size
838		944
839	Calls C<clGetDeviceInfo> with C<CL_DEVICE_GLOBAL_MEM_CACHE_SIZE> and returns the result.	945	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_GLOBAL_MEM_CACHE_SIZE> and returns the result.
840		946
841	=item $ulong = $device->global_mem_size	947	=item $ulong = $device->global_mem_size
842		948
843	Calls C<clGetDeviceInfo> with C<CL_DEVICE_GLOBAL_MEM_SIZE> and returns the result.	949	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_GLOBAL_MEM_SIZE> and returns the result.
844		950
845	=item $ulong = $device->max_constant_buffer_size	951	=item $ulong = $device->max_constant_buffer_size
846		952
847	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_CONSTANT_BUFFER_SIZE> and returns the result.	953	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MAX_CONSTANT_BUFFER_SIZE> and returns the result.
848		954
849	=item $uint = $device->max_constant_args	955	=item $uint = $device->max_constant_args
850		956
851	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_CONSTANT_ARGS> and returns the result.	957	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MAX_CONSTANT_ARGS> and returns the result.
852		958
853	=item $device_local_mem_type = $device->local_mem_type	959	=item $device_local_mem_type = $device->local_mem_type
854		960
855	Calls C<clGetDeviceInfo> with C<CL_DEVICE_LOCAL_MEM_TYPE> and returns the result.	961	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_LOCAL_MEM_TYPE> and returns the result.
856		962
857	=item $ulong = $device->local_mem_size	963	=item $ulong = $device->local_mem_size
858		964
859	Calls C<clGetDeviceInfo> with C<CL_DEVICE_LOCAL_MEM_SIZE> and returns the result.	965	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_LOCAL_MEM_SIZE> and returns the result.
860		966
861	=item $boolean = $device->error_correction_support	967	=item $boolean = $device->error_correction_support
862		968
863	Calls C<clGetDeviceInfo> with C<CL_DEVICE_ERROR_CORRECTION_SUPPORT> and returns the result.	969	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_ERROR_CORRECTION_SUPPORT> and returns the result.
864		970
865	=item $int = $device->profiling_timer_resolution	971	=item $int = $device->profiling_timer_resolution
866		972
867	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PROFILING_TIMER_RESOLUTION> and returns the result.	973	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PROFILING_TIMER_RESOLUTION> and returns the result.
868		974
869	=item $boolean = $device->endian_little	975	=item $boolean = $device->endian_little
870		976
871	Calls C<clGetDeviceInfo> with C<CL_DEVICE_ENDIAN_LITTLE> and returns the result.	977	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_ENDIAN_LITTLE> and returns the result.
872		978
873	=item $boolean = $device->available	979	=item $boolean = $device->available
874		980
875	Calls C<clGetDeviceInfo> with C<CL_DEVICE_AVAILABLE> and returns the result.	981	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_AVAILABLE> and returns the result.
876		982
877	=item $boolean = $device->compiler_available	983	=item $boolean = $device->compiler_available
878		984
879	Calls C<clGetDeviceInfo> with C<CL_DEVICE_COMPILER_AVAILABLE> and returns the result.	985	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_COMPILER_AVAILABLE> and returns the result.
880		986
881	=item $device_exec_capabilities = $device->execution_capabilities	987	=item $device_exec_capabilities = $device->execution_capabilities
882		988
883	Calls C<clGetDeviceInfo> with C<CL_DEVICE_EXECUTION_CAPABILITIES> and returns the result.	989	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_EXECUTION_CAPABILITIES> and returns the result.
884		990
885	=item $command_queue_properties = $device->properties	991	=item $command_queue_properties = $device->properties
886		992
887	Calls C<clGetDeviceInfo> with C<CL_DEVICE_QUEUE_PROPERTIES> and returns the result.	993	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_QUEUE_PROPERTIES> and returns the result.
888		994
889	=item $ = $device->platform	995	=item $ = $device->platform
890		996
891	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PLATFORM> and returns the result.	997	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PLATFORM> and returns the result.
892		998
893	=item $string = $device->name	999	=item $string = $device->name
894		1000
895	Calls C<clGetDeviceInfo> with C<CL_DEVICE_NAME> and returns the result.	1001	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_NAME> and returns the result.
896		1002
897	=item $string = $device->vendor	1003	=item $string = $device->vendor
898		1004
899	Calls C<clGetDeviceInfo> with C<CL_DEVICE_VENDOR> and returns the result.	1005	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_VENDOR> and returns the result.
900		1006
901	=item $string = $device->driver_version	1007	=item $string = $device->driver_version
902		1008
903	Calls C<clGetDeviceInfo> with C<CL_DRIVER_VERSION> and returns the result.	1009	Calls C<clGetDeviceInfo> with C<OpenCL::DRIVER_VERSION> and returns the result.
904		1010
905	=item $string = $device->profile	1011	=item $string = $device->profile
906		1012
907	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PROFILE> and returns the result.	1013	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PROFILE> and returns the result.
908		1014
909	=item $string = $device->version	1015	=item $string = $device->version
910		1016
911	Calls C<clGetDeviceInfo> with C<CL_DEVICE_VERSION> and returns the result.	1017	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_VERSION> and returns the result.
912		1018
913	=item $string = $device->extensions	1019	=item $string = $device->extensions
914		1020
915	Calls C<clGetDeviceInfo> with C<CL_DEVICE_EXTENSIONS> and returns the result.	1021	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_EXTENSIONS> and returns the result.
916		1022
917	=item $uint = $device->preferred_vector_width_half	1023	=item $uint = $device->preferred_vector_width_half
918		1024
919	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PREFERRED_VECTOR_WIDTH_HALF> and returns the result.	1025	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PREFERRED_VECTOR_WIDTH_HALF> and returns the result.
920		1026
921	=item $uint = $device->native_vector_width_char	1027	=item $uint = $device->native_vector_width_char
922		1028
923	Calls C<clGetDeviceInfo> with C<CL_DEVICE_NATIVE_VECTOR_WIDTH_CHAR> and returns the result.	1029	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_NATIVE_VECTOR_WIDTH_CHAR> and returns the result.
924		1030
925	=item $uint = $device->native_vector_width_short	1031	=item $uint = $device->native_vector_width_short
926		1032
927	Calls C<clGetDeviceInfo> with C<CL_DEVICE_NATIVE_VECTOR_WIDTH_SHORT> and returns the result.	1033	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_NATIVE_VECTOR_WIDTH_SHORT> and returns the result.
928		1034
929	=item $uint = $device->native_vector_width_int	1035	=item $uint = $device->native_vector_width_int
930		1036
931	Calls C<clGetDeviceInfo> with C<CL_DEVICE_NATIVE_VECTOR_WIDTH_INT> and returns the result.	1037	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_NATIVE_VECTOR_WIDTH_INT> and returns the result.
932		1038
933	=item $uint = $device->native_vector_width_long	1039	=item $uint = $device->native_vector_width_long
934		1040
935	Calls C<clGetDeviceInfo> with C<CL_DEVICE_NATIVE_VECTOR_WIDTH_LONG> and returns the result.	1041	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_NATIVE_VECTOR_WIDTH_LONG> and returns the result.
936		1042
937	=item $uint = $device->native_vector_width_float	1043	=item $uint = $device->native_vector_width_float
938		1044
939	Calls C<clGetDeviceInfo> with C<CL_DEVICE_NATIVE_VECTOR_WIDTH_FLOAT> and returns the result.	1045	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_NATIVE_VECTOR_WIDTH_FLOAT> and returns the result.
940		1046
941	=item $uint = $device->native_vector_width_double	1047	=item $uint = $device->native_vector_width_double
942		1048
943	Calls C<clGetDeviceInfo> with C<CL_DEVICE_NATIVE_VECTOR_WIDTH_DOUBLE> and returns the result.	1049	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_NATIVE_VECTOR_WIDTH_DOUBLE> and returns the result.
944		1050
945	=item $uint = $device->native_vector_width_half	1051	=item $uint = $device->native_vector_width_half
946		1052
947	Calls C<clGetDeviceInfo> with C<CL_DEVICE_NATIVE_VECTOR_WIDTH_HALF> and returns the result.	1053	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_NATIVE_VECTOR_WIDTH_HALF> and returns the result.
948		1054
949	=item $device_fp_config = $device->double_fp_config	1055	=item $device_fp_config = $device->double_fp_config
950		1056
951	Calls C<clGetDeviceInfo> with C<CL_DEVICE_DOUBLE_FP_CONFIG> and returns the result.	1057	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_DOUBLE_FP_CONFIG> and returns the result.
952		1058
953	=item $device_fp_config = $device->half_fp_config	1059	=item $device_fp_config = $device->half_fp_config
954		1060
955	Calls C<clGetDeviceInfo> with C<CL_DEVICE_HALF_FP_CONFIG> and returns the result.	1061	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_HALF_FP_CONFIG> and returns the result.
956		1062
957	=item $boolean = $device->host_unified_memory	1063	=item $boolean = $device->host_unified_memory
958		1064
959	Calls C<clGetDeviceInfo> with C<CL_DEVICE_HOST_UNIFIED_MEMORY> and returns the result.	1065	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_HOST_UNIFIED_MEMORY> and returns the result.
960		1066
961	=item $device = $device->parent_device_ext	1067	=item $device = $device->parent_device_ext
962		1068
963	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PARENT_DEVICE_EXT> and returns the result.	1069	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PARENT_DEVICE_EXT> and returns the result.
964		1070
965	=item @device_partition_property_exts = $device->partition_types_ext	1071	=item @device_partition_property_exts = $device->partition_types_ext
966		1072
967	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PARTITION_TYPES_EXT> and returns the result.	1073	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PARTITION_TYPES_EXT> and returns the result.
968		1074
969	=item @device_partition_property_exts = $device->affinity_domains_ext	1075	=item @device_partition_property_exts = $device->affinity_domains_ext
970		1076
971	Calls C<clGetDeviceInfo> with C<CL_DEVICE_AFFINITY_DOMAINS_EXT> and returns the result.	1077	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_AFFINITY_DOMAINS_EXT> and returns the result.
972		1078
973	=item $uint = $device->reference_count_ext	1079	=item $uint = $device->reference_count_ext
974		1080
975	Calls C<clGetDeviceInfo> with C<CL_DEVICE_REFERENCE_COUNT_EXT> and returns the result.	1081	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_REFERENCE_COUNT_EXT> and returns the result.
976		1082
977	=item @device_partition_property_exts = $device->partition_style_ext	1083	=item @device_partition_property_exts = $device->partition_style_ext
978		1084
979	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PARTITION_STYLE_EXT> and returns the result.	1085	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PARTITION_STYLE_EXT> and returns the result.
980		1086
981	=for gengetinfo end device	1087	=for gengetinfo end device
982		1088
983	=back	1089	=back
984		1090
985	=head2 THE OpenCL::Context CLASS	1091	=head2 THE OpenCL::Context CLASS
		1092
		1093	An OpenCL::Context is basically a container, or manager, for a number of
		1094	devices of a platform. It is used to create all sorts of secondary objects
		1095	such as buffers, queues, programs and so on.
		1096
		1097	All context creation functions and methods take a list of properties
		1098	(type-value pairs). All property values can be specified as integers -
		1099	some additionally support other types:
		1100
		1101	=over 4
		1102
		1103	=item OpenCL::CONTEXT_PLATFORM
		1104
		1105	Also accepts OpenCL::Platform objects.
		1106
		1107	=item OpenCL::GLX_DISPLAY_KHR
		1108
		1109	Also accepts C<undef>, in which case a deep and troubling hack is engaged
		1110	to find the current glx display (see L<GLX SUPPORT>).
		1111
		1112	=item OpenCL::GL_CONTEXT_KHR
		1113
		1114	Also accepts C<undef>, in which case a deep and troubling hack is engaged
		1115	to find the current glx context (see L<GLX SUPPORT>).
		1116
		1117	=back
986		1118
987	=over 4	1119	=over 4
988		1120
989	=item $prog = $ctx->build_program ($program, $options = "")	1121	=item $prog = $ctx->build_program ($program, $options = "")
990		1122
…		…
999	=cut	1131	=cut
1000		1132
1001	sub OpenCL::Context::build_program {	1133	sub OpenCL::Context::build_program {
1002	my ($self, $prog, $options) = @_;	1134	my ($self, $prog, $options) = @_;
1003		1135
1004	require Carp;
1005
1006	$prog = $self->program_with_source ($prog)	1136	$prog = $self->program_with_source ($prog)
1007	unless ref $prog;	1137	unless ref $prog;
1008		1138
1009	# we build separately per device so we instantly know which one failed	1139	eval { $prog->build (undef, $options); 1 }
		1140	or errno == BUILD_PROGRAM_FAILURE
		1141	or errno == INVALID_BINARY # workaround nvidia bug
		1142	or Carp::croak "OpenCL::Context->build_program: " . err2str;
		1143
		1144	# we check status for all devices
1010	for my $dev ($self->devices) {	1145	for my $dev ($self->devices) {
1011	eval { $prog->build ([$dev], $options); 1 }	1146	$prog->build_status ($dev) == BUILD_SUCCESS
1012	or Carp::croak ("Building OpenCL program for device '" . $dev->name . "' failed:\n"	1147	or Carp::croak "Building OpenCL program for device '" . $dev->name . "' failed:\n"
1013	. $prog->build_log ($dev));	1148	. $prog->build_log ($dev);
1014	}	1149	}
1015		1150
1016	$prog	1151	$prog
1017	}	1152	}
1018		1153
…		…
1035	=item $buf = $ctx->buffer ($flags, $len)	1170	=item $buf = $ctx->buffer ($flags, $len)
1036		1171
1037	Creates a new OpenCL::Buffer (actually OpenCL::BufferObj) object with the	1172	Creates a new OpenCL::Buffer (actually OpenCL::BufferObj) object with the
1038	given flags and octet-size.	1173	given flags and octet-size.
1039		1174
		1175	flags: OpenCL::MEM_READ_WRITE, OpenCL::MEM_WRITE_ONLY, OpenCL::MEM_READ_ONLY,
		1176	OpenCL::MEM_USE_HOST_PTR, OpenCL::MEM_ALLOC_HOST_PTR, OpenCL::MEM_COPY_HOST_PTR,
		1177	OpenCL::MEM_HOST_WRITE_ONLY, OpenCL::MEM_HOST_READ_ONLY, OpenCL::MEM_HOST_NO_ACCESS.
		1178
1040	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateBuffer.html>	1179	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateBuffer.html>
1041		1180
1042	=item $buf = $ctx->buffer_sv ($flags, $data)	1181	=item $buf = $ctx->buffer_sv ($flags, $data)
1043		1182
1044	Creates a new OpenCL::Buffer (actually OpenCL::BufferObj) object and	1183	Creates a new OpenCL::Buffer (actually OpenCL::BufferObj) object and
1045	initialise it with the given data values.	1184	initialise it with the given data values.
1046		1185
1047	=item $img = $ctx->image ($self, $flags, $channel_order, $channel_type, $type, $width, $height, $depth, $array_size = 0, $row_pitch = 0, $slice_pitch = 0, $num_mip_level = 0, $num_samples = 0, $*data = &PL_sv_undef)	1186	=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)
1048		1187
1049	Creates a new OpenCL::Image object and optionally initialises it with	1188	Creates a new OpenCL::Image object and optionally initialises it with
1050	the given data values.	1189	the given data values.
1051		1190
		1191	channel_order: OpenCL::R, OpenCL::A, OpenCL::RG, OpenCL::RA, OpenCL::RGB,
		1192	OpenCL::RGBA, OpenCL::BGRA, OpenCL::ARGB, OpenCL::INTENSITY, OpenCL::LUMINANCE,
		1193	OpenCL::Rx, OpenCL::RGx, OpenCL::RGBx.
		1194
		1195	channel_type: OpenCL::SNORM_INT8, OpenCL::SNORM_INT16, OpenCL::UNORM_INT8,
		1196	OpenCL::UNORM_INT16, OpenCL::UNORM_SHORT_565, OpenCL::UNORM_SHORT_555,
		1197	OpenCL::UNORM_INT_101010, OpenCL::SIGNED_INT8, OpenCL::SIGNED_INT16,
		1198	OpenCL::SIGNED_INT32, OpenCL::UNSIGNED_INT8, OpenCL::UNSIGNED_INT16,
		1199	OpenCL::UNSIGNED_INT32, OpenCL::HALF_FLOAT, OpenCL::FLOAT.
		1200
		1201
		1202	type: OpenCL::MEM_OBJECT_BUFFER, OpenCL::MEM_OBJECT_IMAGE2D,
		1203	OpenCL::MEM_OBJECT_IMAGE3D, OpenCL::MEM_OBJECT_IMAGE2D_ARRAY,
		1204	OpenCL::MEM_OBJECT_IMAGE1D, OpenCL::MEM_OBJECT_IMAGE1D_ARRAY,
		1205	OpenCL::MEM_OBJECT_IMAGE1D_BUFFER.
		1206
1052	L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clCreateImage.html>	1207	L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clCreateImage.html>
1053		1208
1054	=item $img = $ctx->image2d ($flags, $channel_order, $channel_type, $width, $height, $row_pitch = 0, $data = undef)	1209	=item $img = $ctx->image2d ($flags, $channel_order, $channel_type, $width, $height, $row_pitch = 0, $data = undef)
1055		1210
1056	Creates a new OpenCL::Image2D object and optionally initialises it with	1211	Creates a new OpenCL::Image2D object and optionally initialises it with
…		…
1068	=item $buffer = $ctx->gl_buffer ($flags, $bufobj)	1223	=item $buffer = $ctx->gl_buffer ($flags, $bufobj)
1069		1224
1070	Creates a new OpenCL::Buffer (actually OpenCL::BufferObj) object that refers to the given	1225	Creates a new OpenCL::Buffer (actually OpenCL::BufferObj) object that refers to the given
1071	OpenGL buffer object.	1226	OpenGL buffer object.
1072		1227
		1228	flags: OpenCL::MEM_READ_WRITE, OpenCL::MEM_READ_ONLY, OpenCL::MEM_WRITE_ONLY.
		1229
1073	http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateFromGLBuffer.html	1230	http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateFromGLBuffer.html
1074		1231
1075	=item $img = $ctx->gl_texture ($flags, $target, $miplevel, $texture)	1232	=item $img = $ctx->gl_texture ($flags, $target, $miplevel, $texture)
1076		1233
1077	Creates a new OpenCL::Image object that refers to the given OpenGL	1234	Creates a new OpenCL::Image object that refers to the given OpenGL
1078	texture object or buffer.	1235	texture object or buffer.
1079		1236
		1237	target: GL_TEXTURE_1D, GL_TEXTURE_1D_ARRAY, GL_TEXTURE_BUFFER,
		1238	GL_TEXTURE_2D, GL_TEXTURE_2D_ARRAY, GL_TEXTURE_3D,
		1239	GL_TEXTURE_CUBE_MAP_POSITIVE_X, GL_TEXTURE_CUBE_MAP_POSITIVE_Y,
		1240	GL_TEXTURE_CUBE_MAP_POSITIVE_Z, GL_TEXTURE_CUBE_MAP_NEGATIVE_X,
		1241	GL_TEXTURE_CUBE_MAP_NEGATIVE_Y, GL_TEXTURE_CUBE_MAP_NEGATIVE_Z,
		1242	GL_TEXTURE_RECTANGLE/GL_TEXTURE_RECTANGLE_ARB.
		1243
1080	http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clCreateFromGLTexture.html	1244	http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clCreateFromGLTexture.html
1081		1245
1082	=item $img = $ctx->gl_texture2d ($flags, $target, $miplevel, $texture)	1246	=item $img = $ctx->gl_texture2d ($flags, $target, $miplevel, $texture)
1083		1247
1084	Creates a new OpenCL::Image2D object that refers to the given OpenGL	1248	Creates a new OpenCL::Image2D object that refers to the given OpenGL
…		…
1109		1273
1110	=item $sampler = $ctx->sampler ($normalized_coords, $addressing_mode, $filter_mode)	1274	=item $sampler = $ctx->sampler ($normalized_coords, $addressing_mode, $filter_mode)
1111		1275
1112	Creates a new OpenCL::Sampler object.	1276	Creates a new OpenCL::Sampler object.
1113		1277
		1278	addressing_mode: OpenCL::ADDRESS_NONE, OpenCL::ADDRESS_CLAMP_TO_EDGE,
		1279	OpenCL::ADDRESS_CLAMP, OpenCL::ADDRESS_REPEAT, OpenCL::ADDRESS_MIRRORED_REPEAT.
		1280
		1281	filter_mode: OpenCL::FILTER_NEAREST, OpenCL::FILTER_LINEAR.
		1282
1114	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateSampler.html>	1283	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateSampler.html>
1115		1284
1116	=item $program = $ctx->program_with_source ($string)	1285	=item $program = $ctx->program_with_source ($string)
1117		1286
1118	Creates a new OpenCL::Program object from the given source code.	1287	Creates a new OpenCL::Program object from the given source code.
1119		1288
1120	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateProgramWithSource.html>	1289	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateProgramWithSource.html>
1121		1290
		1291	=item ($program, \@status) = $ctx->program_with_binary (\@devices, \@binaries)
		1292
		1293	Creates a new OpenCL::Program object from the given binaries.
		1294
		1295	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateProgramWithBinary.html>
		1296
		1297	Example: clone an existing program object that contains a successfully
		1298	compiled program, no matter how useless this is.
		1299
		1300	my $clone = $ctx->program_with_binary ([$prog->devices], [$prog->binaries]);
		1301
		1302	=item $program = $ctx->program_with_built_in_kernels (\@devices, $kernel_names)
		1303
		1304	Creates a new OpenCL::Program object from the given built-in kernel names.
		1305
		1306	L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clCreateProgramWithBuiltInKernels.html>
		1307
		1308	=item $program = $ctx->link_program (\@devices, $options, \@programs, $cb->($program) = undef)
		1309
		1310	Links all (already compiled) program objects specified in C<@programs>
		1311	together and returns a new OpenCL::Program object with the result.
		1312
		1313	L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clLinkProgram.html>
		1314
1122	=item $packed_value = $ctx->info ($name)	1315	=item $packed_value = $ctx->info ($name)
1123		1316
1124	See C<< $platform->info >> for details.	1317	See C<< $platform->info >> for details.
1125		1318
1126	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetContextInfo.html>	1319	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetContextInfo.html>
1127		1320
1128	=for gengetinfo begin context	1321	=for gengetinfo begin context
1129		1322
1130	=item $uint = $context->reference_count	1323	=item $uint = $context->reference_count
1131		1324
1132	Calls C<clGetContextInfo> with C<CL_CONTEXT_REFERENCE_COUNT> and returns the result.	1325	Calls C<clGetContextInfo> with C<OpenCL::CONTEXT_REFERENCE_COUNT> and returns the result.
1133		1326
1134	=item @devices = $context->devices	1327	=item @devices = $context->devices
1135		1328
1136	Calls C<clGetContextInfo> with C<CL_CONTEXT_DEVICES> and returns the result.	1329	Calls C<clGetContextInfo> with C<OpenCL::CONTEXT_DEVICES> and returns the result.
1137		1330
1138	=item @property_ints = $context->properties	1331	=item @property_ints = $context->properties
1139		1332
1140	Calls C<clGetContextInfo> with C<CL_CONTEXT_PROPERTIES> and returns the result.	1333	Calls C<clGetContextInfo> with C<OpenCL::CONTEXT_PROPERTIES> and returns the result.
1141		1334
1142	=item $uint = $context->num_devices	1335	=item $uint = $context->num_devices
1143		1336
1144	Calls C<clGetContextInfo> with C<CL_CONTEXT_NUM_DEVICES> and returns the result.	1337	Calls C<clGetContextInfo> with C<OpenCL::CONTEXT_NUM_DEVICES> and returns the result.
1145		1338
1146	=for gengetinfo end context	1339	=for gengetinfo end context
1147		1340
1148	=back	1341	=back
1149		1342
1150	=head2 THE OpenCL::Queue CLASS	1343	=head2 THE OpenCL::Queue CLASS
1151		1344
1152	An OpenCL::Queue represents an execution queue for OpenCL. You execute	1345	An OpenCL::Queue represents an execution queue for OpenCL. You execute
1153	requests by calling their respective C<enqueue_xxx> method and waitinf for	1346	requests by calling their respective method and waiting for it to complete
1154	it to complete in some way.	1347	in some way.
1155		1348
1156	All the enqueue methods return an event object that can be used to wait	1349	Most methods that enqueue some request return an event object that can
1157	for completion, unless the method is called in void context, in which case	1350	be used to wait for completion (optionally using a callback), unless
1158	no event object is created.	1351	the method is called in void context, in which case no event object is
		1352	created.
1159		1353
1160	They also allow you to specify any number of other event objects that this	1354	They also allow you to specify any number of other event objects that this
1161	request has to wait for before it starts executing, by simply passing the	1355	request has to wait for before it starts executing, by simply passing the
1162	event objects as extra parameters to the enqueue methods. To simplify	1356	event objects as extra parameters to the enqueue methods. To simplify
1163	program design, this module ignores any C<undef> values in the list of	1357	program design, this module ignores any C<undef> values in the list of
1164	events. This makes it possible to code operations such as this, without	1358	events. This makes it possible to code operations such as this, without
1165	having to put a valid event object into C<$event> first:	1359	having to put a valid event object into C<$event> first:
1166		1360
1167	$event = $queue->enqueue_xxx (..., $event);	1361	$event = $queue->xxx (..., $event);
1168		1362
1169	Queues execute in-order by default, without any parallelism, so in most	1363	Queues execute in-order by default, without any parallelism, so in most
1170	cases (i.e. you use only one queue) it's not necessary to wait for or	1364	cases (i.e. you use only one queue) it's not necessary to wait for or
1171	create event objects, althoguh an our of order queue is often a bit	1365	create event objects, althoguh an our of order queue is often a bit
1172	faster.	1366	faster.
1173		1367
1174	=over 4	1368	=over 4
1175		1369
1176	=item $ev = $queue->enqueue_read_buffer ($buffer, $blocking, $offset, $len, $data, $wait_events...)	1370	=item $ev = $queue->read_buffer ($buffer, $blocking, $offset, $len, $data, $wait_events...)
1177		1371
1178	Reads data from buffer into the given string.	1372	Reads data from buffer into the given string.
1179		1373
1180	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReadBuffer.html>	1374	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReadBuffer.html>
1181		1375
1182	=item $ev = $queue->enqueue_write_buffer ($buffer, $blocking, $offset, $data, $wait_events...)	1376	=item $ev = $queue->write_buffer ($buffer, $blocking, $offset, $data, $wait_events...)
1183		1377
1184	Writes data to buffer from the given string.	1378	Writes data to buffer from the given string.
1185		1379
1186	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWriteBuffer.html>	1380	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWriteBuffer.html>
1187		1381
1188	=item $ev = $queue->enqueue_copy_buffer ($src, $dst, $src_offset, $dst_offset, $len, $wait_events...)	1382	=item $ev = $queue->copy_buffer ($src, $dst, $src_offset, $dst_offset, $len, $wait_events...)
1189		1383
1190	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyBuffer.html>	1384	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyBuffer.html>
1191		1385
1192	=item $ev = $queue->enqueue_read_buffer_rect (OpenCL::Memory buf, cl_bool blocking, $buf_x, $buf_y, $buf_z, $host_x, $host_y, $host_z, $width, $height, $depth, $buf_row_pitch, $buf_slice_pitch, $host_row_pitch, $host_slice_pitch, $data, $wait_events...)	1386	=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...)
1193		1387
1194	http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReadBufferRect.html	1388	http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReadBufferRect.html
1195		1389
1196	=item $ev = $queue->enqueue_write_buffer_rect (OpenCL::Memory buf, cl_bool blocking, $buf_x, $buf_y, $buf_z, $host_x, $host_y, $host_z, $width, $height, $depth, $buf_row_pitch, $buf_slice_pitch, $host_row_pitch, $host_slice_pitch, $data, $wait_events...)	1390	=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...)
1197		1391
1198	http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWriteBufferRect.html	1392	http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWriteBufferRect.html
1199		1393
1200	=item $ev = $queue->enqueue_read_image ($src, $blocking, $x, $y, $z, $width, $height, $depth, $row_pitch, $slice_pitch, $data, $wait_events...)
1201
1202	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyBufferRect.html>
1203
1204	=item $ev = $queue->enqueue_copy_buffer_to_image ($src_buffer, $dst_image, $src_offset, $dst_x, $dst_y, $dst_z, $width, $height, $depth, $wait_events...)	1394	=item $ev = $queue->copy_buffer_to_image ($src_buffer, $dst_image, $src_offset, $dst_x, $dst_y, $dst_z, $width, $height, $depth, $wait_events...)
		1395
		1396	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyBufferToImage.html>
		1397
		1398	=item $ev = $queue->read_image ($src, $blocking, $x, $y, $z, $width, $height, $depth, $row_pitch, $slice_pitch, $data, $wait_events...)
		1399
		1400	C<$row_pitch> (and C<$slice_pitch>) can be C<0>, in which case the OpenCL
		1401	module uses the image width (and height) to supply default values.
1205		1402
1206	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReadImage.html>	1403	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReadImage.html>
1207		1404
1208	=item $ev = $queue->enqueue_write_image ($src, $blocking, $x, $y, $z, $width, $height, $depth, $row_pitch, $slice_pitch, $data, $wait_events...)	1405	=item $ev = $queue->write_image ($src, $blocking, $x, $y, $z, $width, $height, $depth, $row_pitch, $slice_pitch, $data, $wait_events...)
1209		1406
		1407	C<$row_pitch> (and C<$slice_pitch>) can be C<0>, in which case the OpenCL
		1408	module uses the image width (and height) to supply default values.
1210	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWriteImage.html>	1409	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWriteImage.html>
1211		1410
1212	=item $ev = $queue->enqueue_copy_image ($src_image, $dst_image, $src_x, $src_y, $src_z, $dst_x, $dst_y, $dst_z, $width, $height, $depth, $wait_events...)	1411	=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...)
1213		1412
1214	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyImage.html>	1413	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyImage.html>
1215		1414
1216	=item $ev = $queue->enqueue_copy_image_to_buffer ($src_image, $dst_image, $src_x, $src_y, $src_z, $width, $height, $depth, $dst_offset, $wait_events...)	1415	=item $ev = $queue->copy_image_to_buffer ($src_image, $dst_image, $src_x, $src_y, $src_z, $width, $height, $depth, $dst_offset, $wait_events...)
1217		1416
1218	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyImageToBuffer.html>	1417	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyImageToBuffer.html>
1219		1418
1220	=item $ev = $queue->enqueue_copy_buffer_rect ($src, $dst, $src_x, $src_y, $src_z, $dst_x, $dst_y, $dst_z, $width, $height, $depth, $src_row_pitch, $src_slice_pitch, $dst_row_pitch, $dst_slice_pitch, $wait_event...)	1419	=item $ev = $queue->copy_buffer_rect ($src, $dst, $src_x, $src_y, $src_z, $dst_x, $dst_y, $dst_z, $width, $height, $depth, $src_row_pitch, $src_slice_pitch, $dst_row_pitch, $dst_slice_pitch, $wait_event...)
1221		1420
1222	Yeah.	1421	Yeah.
1223		1422
1224	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyBufferToImage.html>.	1423	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyBufferToImage.html>.
1225		1424
1226	=item $ev = $queue->enqueue_fill_buffer ($mem, $pattern, $offset, $size, ...)	1425	=item $ev = $queue->fill_buffer ($mem, $pattern, $offset, $size, ...)
1227		1426
1228	Fills the given buffer object with repeated applications of C<$pattern>,	1427	Fills the given buffer object with repeated applications of C<$pattern>,
1229	starting at C<$offset> for C<$size> octets.	1428	starting at C<$offset> for C<$size> octets.
1230		1429
1231	L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clEnqueueFillBuffer.html>	1430	L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clEnqueueFillBuffer.html>
1232		1431
1233	=item $ev = $queue->enqueue_fill_image ($img, $r, $g, $b, $a, $x, $y, $z, $width, $height, $depth, ...)	1432	=item $ev = $queue->fill_image ($img, $r, $g, $b, $a, $x, $y, $z, $width, $height, $depth, ...)
1234		1433
1235	Fills the given image area with the given rgba colour components. The	1434	Fills the given image area with the given rgba colour components. The
1236	components are normally floating point values between C<0> and C<1>,	1435	components are normally floating point values between C<0> and C<1>,
1237	except when the image channel data type is a signe dor unsigned	1436	except when the image channel data type is a signe dor unsigned
1238	unnormalised format, in which case the range is determined by the format.	1437	unnormalised format, in which case the range is determined by the format.
1239		1438
1240	L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clEnqueueFillImage.html>	1439	L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clEnqueueFillImage.html>
1241		1440
1242	=item $ev = $queue->enqueue_task ($kernel, $wait_events...)	1441	=item $ev = $queue->task ($kernel, $wait_events...)
1243		1442
1244	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueTask.html>	1443	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueTask.html>
1245		1444
1246	=item $ev = $queue->enqueue_nd_range_kernel ($kernel, @$global_work_offset, @$global_work_size, @$local_work_size, $wait_events...)	1445	=item $ev = $queue->nd_range_kernel ($kernel, \@global_work_offset, \@global_work_size, \@local_work_size, $wait_events...)
1247		1446
1248	Enqueues a kernel execution.	1447	Enqueues a kernel execution.
1249		1448
1250	@$global_work_size must be specified as a reference to an array of	1449	\@global_work_size must be specified as a reference to an array of
1251	integers specifying the work sizes (element counts).	1450	integers specifying the work sizes (element counts).
1252		1451
1253	@$global_work_offset must be either C<undef> (in which case all offsets	1452	\@global_work_offset must be either C<undef> (in which case all offsets
1254	are C<0>), or a reference to an array of work offsets, with the same number	1453	are C<0>), or a reference to an array of work offsets, with the same number
1255	of elements as @$global_work_size.	1454	of elements as \@global_work_size.
1256		1455
1257	@$local_work_size must be either C<undef> (in which case the	1456	\@local_work_size must be either C<undef> (in which case the
1258	implementation is supposed to choose good local work sizes), or a	1457	implementation is supposed to choose good local work sizes), or a
1259	reference to an array of local work sizes, with the same number of	1458	reference to an array of local work sizes, with the same number of
1260	elements as @$global_work_size.	1459	elements as \@global_work_size.
1261		1460
1262	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueNDRangeKernel.html>	1461	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueNDRangeKernel.html>
1263		1462
		1463	=item $ev = $queue->migrate_mem_objects (\@mem_objects, $flags, $wait_events...)
		1464
		1465	Migrates a number of OpenCL::Memory objects to or from the device.
		1466
		1467	flags: OpenCL::MIGRATE_MEM_OBJECT_HOST, OpenCL::MIGRATE_MEM_OBJECT_CONTENT_UNDEFINED
		1468
		1469	L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clEnqueueMigrateMemObjects.html>
		1470
1264	=item $ev = $queue->enqueue_acquire_gl_objects ([object, ...], $wait_events...)	1471	=item $ev = $queue->acquire_gl_objects ([object, ...], $wait_events...)
1265		1472
1266	Enqueues a list (an array-ref of OpenCL::Memory objects) to be acquired	1473	Enqueues a list (an array-ref of OpenCL::Memory objects) to be acquired
1267	for subsequent OpenCL usage.	1474	for subsequent OpenCL usage.
1268		1475
1269	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueAcquireGLObjects.html>	1476	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueAcquireGLObjects.html>
1270		1477
1271	=item $ev = $queue->enqueue_release_gl_objects ([object, ...], $wait_events...)	1478	=item $ev = $queue->release_gl_objects ([object, ...], $wait_events...)
1272		1479
1273	Enqueues a list (an array-ref of OpenCL::Memory objects) to be released	1480	Enqueues a list (an array-ref of OpenCL::Memory objects) to be released
1274	for subsequent OpenGL usage.	1481	for subsequent OpenGL usage.
1275		1482
1276	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReleaseGLObjects.html>	1483	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReleaseGLObjects.html>
1277		1484
1278	=item $ev = $queue->enqueue_wait_for_events ($wait_events...)	1485	=item $ev = $queue->wait_for_events ($wait_events...)
1279		1486
1280	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWaitForEvents.html>	1487	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWaitForEvents.html>
1281		1488
1282	=item $ev = $queue->enqueue_marker ($wait_events...)	1489	=item $ev = $queue->marker ($wait_events...)
1283		1490
1284	L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clEnqueueMarkerWithWaitList.html>	1491	L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clEnqueueMarkerWithWaitList.html>
1285		1492
1286	=item $ev = $queue->enqueue_barrier ($wait_events...)	1493	=item $ev = $queue->barrier ($wait_events...)
1287		1494
1288	L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clEnqueueBarrierWithWaitList.html>	1495	L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clEnqueueBarrierWithWaitList.html>
1289		1496
1290	=item $queue->flush	1497	=item $queue->flush
1291		1498
…		…
1303		1510
1304	=for gengetinfo begin command_queue	1511	=for gengetinfo begin command_queue
1305		1512
1306	=item $ctx = $command_queue->context	1513	=item $ctx = $command_queue->context
1307		1514
1308	Calls C<clGetCommandQueueInfo> with C<CL_QUEUE_CONTEXT> and returns the result.	1515	Calls C<clGetCommandQueueInfo> with C<OpenCL::QUEUE_CONTEXT> and returns the result.
1309		1516
1310	=item $device = $command_queue->device	1517	=item $device = $command_queue->device
1311		1518
1312	Calls C<clGetCommandQueueInfo> with C<CL_QUEUE_DEVICE> and returns the result.	1519	Calls C<clGetCommandQueueInfo> with C<OpenCL::QUEUE_DEVICE> and returns the result.
1313		1520
1314	=item $uint = $command_queue->reference_count	1521	=item $uint = $command_queue->reference_count
1315		1522
1316	Calls C<clGetCommandQueueInfo> with C<CL_QUEUE_REFERENCE_COUNT> and returns the result.	1523	Calls C<clGetCommandQueueInfo> with C<OpenCL::QUEUE_REFERENCE_COUNT> and returns the result.
1317		1524
1318	=item $command_queue_properties = $command_queue->properties	1525	=item $command_queue_properties = $command_queue->properties
1319		1526
1320	Calls C<clGetCommandQueueInfo> with C<CL_QUEUE_PROPERTIES> and returns the result.	1527	Calls C<clGetCommandQueueInfo> with C<OpenCL::QUEUE_PROPERTIES> and returns the result.
1321		1528
1322	=for gengetinfo end command_queue	1529	=for gengetinfo end command_queue
		1530
		1531	=back
		1532
		1533	=head3 MEMORY MAPPED BUFFERS
		1534
		1535	OpenCL allows you to map buffers and images to host memory (read: perl
		1536	scalars). This is done much like reading or copying a buffer, by enqueuing
		1537	a map or unmap operation on the command queue.
		1538
		1539	The map operations return an C<OpenCL::Mapped> object - see L<THE
		1540	OpenCL::Mapped CLASS> section for details on what to do with these
		1541	objects.
		1542
		1543	The object will be unmapped automatically when the mapped object is
		1544	destroyed (you can use a barrier to make sure the unmap has finished,
		1545	before using the buffer in a kernel), but you can also enqueue an unmap
		1546	operation manually.
		1547
		1548	=over 4
		1549
		1550	=item $mapped_buffer = $queue->map_buffer ($buf, $blocking=1, $map_flags=OpenCL::MAP_READ|OpenCL::MAP_WRITE, $offset=0, $size=undef, $wait_events...)
		1551
		1552	Maps the given buffer into host memory and returns an
		1553	C<OpenCL::MappedBuffer> object. If C<$size> is specified as undef, then
		1554	the map will extend to the end of the buffer.
		1555
		1556	map_flags: OpenCL::MAP_READ, OpenCL::MAP_WRITE, OpenCL::MAP_WRITE_INVALIDATE_REGION.
		1557
		1558	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueMapBuffer.html>
		1559
		1560	Example: map the buffer $buf fully and replace the first 4 bytes by "abcd", then unmap.
		1561
		1562	{
		1563	my $mapped = $queue->map_buffer ($buf, 1, OpenCL::MAP_WRITE);
		1564	substr $$mapped, 0, 4, "abcd";
		1565	} # asynchronously unmap because $mapped is destroyed
		1566
		1567	=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...)
		1568
		1569	Maps the given image area into host memory and return an
		1570	C<OpenCL::MappedImage> object.
		1571
		1572	If any of C<$width>, C<$height> and/or C<$depth> are C<undef> then they
		1573	will be replaced by the maximum possible value.
		1574
		1575	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueMapImage.html>
		1576
		1577	Example: map an image (with OpenCL::UNSIGNED_INT8 channel type) and set
		1578	the first channel of the leftmost column to 5, then explicitly unmap
		1579	it. You are not necessarily meant to do it this way, this example just
		1580	shows you the accessors to use :)
		1581
		1582	my $mapped = $queue->map_image ($image, 1, OpenCL::MAP_WRITE);
		1583
		1584	$mapped->set ($_ * $mapped->row_pitch, pack "C", 5)
		1585	for 0..$image->height;
		1586
		1587	$mapped->unmap;.
		1588	$mapped->wait; # only needed for out of order queues normally
		1589
		1590	=item $ev = $queue->unmap ($mapped, $wait_events...)
		1591
		1592	Unmaps the data from host memory. You must not call any methods that
		1593	modify the data, or modify the data scalar directly, after calling this
		1594	method.
		1595
		1596	The mapped event object will always be passed as part of the
		1597	$wait_events. The mapped event object will be replaced by the new event
		1598	object that this request creates.
1323		1599
1324	=back	1600	=back
1325		1601
1326	=head2 THE OpenCL::Memory CLASS	1602	=head2 THE OpenCL::Memory CLASS
1327		1603
…		…
1338		1614
1339	=for gengetinfo begin mem	1615	=for gengetinfo begin mem
1340		1616
1341	=item $mem_object_type = $mem->type	1617	=item $mem_object_type = $mem->type
1342		1618
1343	Calls C<clGetMemObjectInfo> with C<CL_MEM_TYPE> and returns the result.	1619	Calls C<clGetMemObjectInfo> with C<OpenCL::MEM_TYPE> and returns the result.
1344		1620
1345	=item $mem_flags = $mem->flags	1621	=item $mem_flags = $mem->flags
1346		1622
1347	Calls C<clGetMemObjectInfo> with C<CL_MEM_FLAGS> and returns the result.	1623	Calls C<clGetMemObjectInfo> with C<OpenCL::MEM_FLAGS> and returns the result.
1348		1624
1349	=item $int = $mem->size	1625	=item $int = $mem->size
1350		1626
1351	Calls C<clGetMemObjectInfo> with C<CL_MEM_SIZE> and returns the result.	1627	Calls C<clGetMemObjectInfo> with C<OpenCL::MEM_SIZE> and returns the result.
1352		1628
1353	=item $ptr_value = $mem->host_ptr	1629	=item $ptr_value = $mem->host_ptr
1354		1630
1355	Calls C<clGetMemObjectInfo> with C<CL_MEM_HOST_PTR> and returns the result.	1631	Calls C<clGetMemObjectInfo> with C<OpenCL::MEM_HOST_PTR> and returns the result.
1356		1632
1357	=item $uint = $mem->map_count	1633	=item $uint = $mem->map_count
1358		1634
1359	Calls C<clGetMemObjectInfo> with C<CL_MEM_MAP_COUNT> and returns the result.	1635	Calls C<clGetMemObjectInfo> with C<OpenCL::MEM_MAP_COUNT> and returns the result.
1360		1636
1361	=item $uint = $mem->reference_count	1637	=item $uint = $mem->reference_count
1362		1638
1363	Calls C<clGetMemObjectInfo> with C<CL_MEM_REFERENCE_COUNT> and returns the result.	1639	Calls C<clGetMemObjectInfo> with C<OpenCL::MEM_REFERENCE_COUNT> and returns the result.
1364		1640
1365	=item $ctx = $mem->context	1641	=item $ctx = $mem->context
1366		1642
1367	Calls C<clGetMemObjectInfo> with C<CL_MEM_CONTEXT> and returns the result.	1643	Calls C<clGetMemObjectInfo> with C<OpenCL::MEM_CONTEXT> and returns the result.
1368		1644
1369	=item $mem = $mem->associated_memobject	1645	=item $mem = $mem->associated_memobject
1370		1646
1371	Calls C<clGetMemObjectInfo> with C<CL_MEM_ASSOCIATED_MEMOBJECT> and returns the result.	1647	Calls C<clGetMemObjectInfo> with C<OpenCL::MEM_ASSOCIATED_MEMOBJECT> and returns the result.
1372		1648
1373	=item $int = $mem->offset	1649	=item $int = $mem->offset
1374		1650
1375	Calls C<clGetMemObjectInfo> with C<CL_MEM_OFFSET> and returns the result.	1651	Calls C<clGetMemObjectInfo> with C<OpenCL::MEM_OFFSET> and returns the result.
1376		1652
1377	=for gengetinfo end mem	1653	=for gengetinfo end mem
1378		1654
1379	=item ($type, $name) = $mem->gl_object_info	1655	=item ($type, $name) = $mem->gl_object_info
1380		1656
…		…
1432		1708
1433	=for gengetinfo begin image	1709	=for gengetinfo begin image
1434		1710
1435	=item $int = $image->element_size	1711	=item $int = $image->element_size
1436		1712
1437	Calls C<clGetImageInfo> with C<CL_IMAGE_ELEMENT_SIZE> and returns the result.	1713	Calls C<clGetImageInfo> with C<OpenCL::IMAGE_ELEMENT_SIZE> and returns the result.
1438		1714
1439	=item $int = $image->row_pitch	1715	=item $int = $image->row_pitch
1440		1716
1441	Calls C<clGetImageInfo> with C<CL_IMAGE_ROW_PITCH> and returns the result.	1717	Calls C<clGetImageInfo> with C<OpenCL::IMAGE_ROW_PITCH> and returns the result.
1442		1718
1443	=item $int = $image->slice_pitch	1719	=item $int = $image->slice_pitch
1444		1720
1445	Calls C<clGetImageInfo> with C<CL_IMAGE_SLICE_PITCH> and returns the result.	1721	Calls C<clGetImageInfo> with C<OpenCL::IMAGE_SLICE_PITCH> and returns the result.
1446		1722
1447	=item $int = $image->width	1723	=item $int = $image->width
1448		1724
1449	Calls C<clGetImageInfo> with C<CL_IMAGE_WIDTH> and returns the result.	1725	Calls C<clGetImageInfo> with C<OpenCL::IMAGE_WIDTH> and returns the result.
1450		1726
1451	=item $int = $image->height	1727	=item $int = $image->height
1452		1728
1453	Calls C<clGetImageInfo> with C<CL_IMAGE_HEIGHT> and returns the result.	1729	Calls C<clGetImageInfo> with C<OpenCL::IMAGE_HEIGHT> and returns the result.
1454		1730
1455	=item $int = $image->depth	1731	=item $int = $image->depth
1456		1732
1457	Calls C<clGetImageInfo> with C<CL_IMAGE_DEPTH> and returns the result.	1733	Calls C<clGetImageInfo> with C<OpenCL::IMAGE_DEPTH> and returns the result.
1458		1734
1459	=for gengetinfo end image	1735	=for gengetinfo end image
1460		1736
1461	=for gengetinfo begin gl_texture	1737	=for gengetinfo begin gl_texture
1462		1738
1463	=item $GLenum = $gl_texture->target	1739	=item $GLenum = $gl_texture->target
1464		1740
1465	Calls C<clGetGLTextureInfo> with C<CL_GL_TEXTURE_TARGET> and returns the result.	1741	Calls C<clGetGLTextureInfo> with C<OpenCL::GL_TEXTURE_TARGET> and returns the result.
1466		1742
1467	=item $GLint = $gl_texture->gl_mipmap_level	1743	=item $GLint = $gl_texture->gl_mipmap_level
1468		1744
1469	Calls C<clGetGLTextureInfo> with C<CL_GL_MIPMAP_LEVEL> and returns the result.	1745	Calls C<clGetGLTextureInfo> with C<OpenCL::GL_MIPMAP_LEVEL> and returns the result.
1470		1746
1471	=for gengetinfo end gl_texture	1747	=for gengetinfo end gl_texture
1472		1748
1473	=back	1749	=back
1474		1750
…		…
1484		1760
1485	=for gengetinfo begin sampler	1761	=for gengetinfo begin sampler
1486		1762
1487	=item $uint = $sampler->reference_count	1763	=item $uint = $sampler->reference_count
1488		1764
1489	Calls C<clGetSamplerInfo> with C<CL_SAMPLER_REFERENCE_COUNT> and returns the result.	1765	Calls C<clGetSamplerInfo> with C<OpenCL::SAMPLER_REFERENCE_COUNT> and returns the result.
1490		1766
1491	=item $ctx = $sampler->context	1767	=item $ctx = $sampler->context
1492		1768
1493	Calls C<clGetSamplerInfo> with C<CL_SAMPLER_CONTEXT> and returns the result.	1769	Calls C<clGetSamplerInfo> with C<OpenCL::SAMPLER_CONTEXT> and returns the result.
1494		1770
1495	=item $addressing_mode = $sampler->normalized_coords	1771	=item $addressing_mode = $sampler->normalized_coords
1496		1772
1497	Calls C<clGetSamplerInfo> with C<CL_SAMPLER_NORMALIZED_COORDS> and returns the result.	1773	Calls C<clGetSamplerInfo> with C<OpenCL::SAMPLER_NORMALIZED_COORDS> and returns the result.
1498		1774
1499	=item $filter_mode = $sampler->addressing_mode	1775	=item $filter_mode = $sampler->addressing_mode
1500		1776
1501	Calls C<clGetSamplerInfo> with C<CL_SAMPLER_ADDRESSING_MODE> and returns the result.	1777	Calls C<clGetSamplerInfo> with C<OpenCL::SAMPLER_ADDRESSING_MODE> and returns the result.
1502		1778
1503	=item $boolean = $sampler->filter_mode	1779	=item $boolean = $sampler->filter_mode
1504		1780
1505	Calls C<clGetSamplerInfo> with C<CL_SAMPLER_FILTER_MODE> and returns the result.	1781	Calls C<clGetSamplerInfo> with C<OpenCL::SAMPLER_FILTER_MODE> and returns the result.
1506		1782
1507	=for gengetinfo end sampler	1783	=for gengetinfo end sampler
1508		1784
1509	=back	1785	=back
1510		1786
…		…
1520	If a callback is specified, then it will be called when compilation is	1796	If a callback is specified, then it will be called when compilation is
1521	finished. Note that many OpenCL implementations block your program while	1797	finished. Note that many OpenCL implementations block your program while
1522	compiling whether you use a callback or not. See C<build_async> if you	1798	compiling whether you use a callback or not. See C<build_async> if you
1523	want to make sure the build is done in the background.	1799	want to make sure the build is done in the background.
1524		1800
1525	Note that some OpenCL implementations atc up badly, and don't call the	1801	Note that some OpenCL implementations act up badly, and don't call the
1526	callback in some error cases (but call it in others). This implementation	1802	callback in some error cases (but call it in others). This implementation
1527	assumes the callback will always be called, and leaks memory if this is	1803	assumes the callback will always be called, and leaks memory if this is
1528	not so. So best make sure you don't pass in invalid values.	1804	not so. So best make sure you don't pass in invalid values.
1529		1805
		1806	Some implementations fail with C<OpenCL::INVALID_BINARY> when the
		1807	compilation state is successful but some later stage fails.
		1808
		1809	options: C<-D name>, C<-D name=definition>, C<-I dir>,
		1810	C<-cl-single-precision-constant>, C<-cl-denorms-are-zero>,
		1811	C<-cl-fp32-correctly-rounded-divide-sqrt>, C<-cl-opt-disable>,
		1812	C<-cl-mad-enable>, C<-cl-no-signed-zeros>, C<-cl-unsafe-math-optimizations>,
		1813	C<-cl-finite-math-only>, C<-cl-fast-relaxed-math>,
		1814	C<-w>, C<-Werror>, C<-cl-std=CL1.1/CL1.2>, C<-cl-kernel-arg-info>,
		1815	C<-create-library>, C<-enable-link-options>.
		1816
		1817	build_status: OpenCL::BUILD_SUCCESS, OpenCL::BUILD_NONE,
		1818	OpenCL::BUILD_ERROR, OpenCL::BUILD_IN_PROGRESS.
		1819
1530	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clBuildProgram.html>	1820	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clBuildProgram.html>
1531		1821
1532	=item $program->build_async (\@devices = undef, $options = "", $cb->($program) = undef)	1822	=item $program->build_async (\@devices = undef, $options = "", $cb->($program) = undef)
1533		1823
1534	Similar to C<< ->build >>, except it starts a thread, and never fails (you	1824	Similar to C<< ->build >>, except it starts a thread, and never fails (you
1535	need to check the compilation status form the callback, or by polling).	1825	need to check the compilation status form the callback, or by polling).
1536		1826
		1827	=item $program->compile (\@devices = undef, $options = "", \%headers = undef, $cb->($program) = undef)
		1828
		1829	Compiles the given program for the given devices (or all devices if
		1830	undef). If C<$headers> is given, it must be a hashref with include name =>
		1831	OpenCL::Program pairs.
		1832
		1833	L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clCompileProgram.html>
		1834
1537	=item $packed_value = $program->build_info ($device, $name)	1835	=item $packed_value = $program->build_info ($device, $name)
1538		1836
1539	Similar to C<< $platform->info >>, but returns build info for a previous	1837	Similar to C<< $platform->info >>, but returns build info for a previous
1540	build attempt for the given device.	1838	build attempt for the given device.
1541		1839
…		…
1556		1854
1557	=for gengetinfo begin program_build	1855	=for gengetinfo begin program_build
1558		1856
1559	=item $build_status = $program->build_status ($device)	1857	=item $build_status = $program->build_status ($device)
1560		1858
1561	Calls C<clGetProgramBuildInfo> with C<CL_PROGRAM_BUILD_STATUS> and returns the result.	1859	Calls C<clGetProgramBuildInfo> with C<OpenCL::PROGRAM_BUILD_STATUS> and returns the result.
1562		1860
1563	=item $string = $program->build_options ($device)	1861	=item $string = $program->build_options ($device)
1564		1862
1565	Calls C<clGetProgramBuildInfo> with C<CL_PROGRAM_BUILD_OPTIONS> and returns the result.	1863	Calls C<clGetProgramBuildInfo> with C<OpenCL::PROGRAM_BUILD_OPTIONS> and returns the result.
1566		1864
1567	=item $string = $program->build_log ($device)	1865	=item $string = $program->build_log ($device)
1568		1866
1569	Calls C<clGetProgramBuildInfo> with C<CL_PROGRAM_BUILD_LOG> and returns the result.	1867	Calls C<clGetProgramBuildInfo> with C<OpenCL::PROGRAM_BUILD_LOG> and returns the result.
1570		1868
1571	=for gengetinfo end program_build	1869	=for gengetinfo end program_build
1572		1870
1573	=item $packed_value = $program->info ($name)	1871	=item $packed_value = $program->info ($name)
1574		1872
…		…
1578		1876
1579	=for gengetinfo begin program	1877	=for gengetinfo begin program
1580		1878
1581	=item $uint = $program->reference_count	1879	=item $uint = $program->reference_count
1582		1880
1583	Calls C<clGetProgramInfo> with C<CL_PROGRAM_REFERENCE_COUNT> and returns the result.	1881	Calls C<clGetProgramInfo> with C<OpenCL::PROGRAM_REFERENCE_COUNT> and returns the result.
1584		1882
1585	=item $ctx = $program->context	1883	=item $ctx = $program->context
1586		1884
1587	Calls C<clGetProgramInfo> with C<CL_PROGRAM_CONTEXT> and returns the result.	1885	Calls C<clGetProgramInfo> with C<OpenCL::PROGRAM_CONTEXT> and returns the result.
1588		1886
1589	=item $uint = $program->num_devices	1887	=item $uint = $program->num_devices
1590		1888
1591	Calls C<clGetProgramInfo> with C<CL_PROGRAM_NUM_DEVICES> and returns the result.	1889	Calls C<clGetProgramInfo> with C<OpenCL::PROGRAM_NUM_DEVICES> and returns the result.
1592		1890
1593	=item @devices = $program->devices	1891	=item @devices = $program->devices
1594		1892
1595	Calls C<clGetProgramInfo> with C<CL_PROGRAM_DEVICES> and returns the result.	1893	Calls C<clGetProgramInfo> with C<OpenCL::PROGRAM_DEVICES> and returns the result.
1596		1894
1597	=item $string = $program->source	1895	=item $string = $program->source
1598		1896
1599	Calls C<clGetProgramInfo> with C<CL_PROGRAM_SOURCE> and returns the result.	1897	Calls C<clGetProgramInfo> with C<OpenCL::PROGRAM_SOURCE> and returns the result.
1600		1898
1601	=item @ints = $program->binary_sizes	1899	=item @ints = $program->binary_sizes
1602		1900
1603	Calls C<clGetProgramInfo> with C<CL_PROGRAM_BINARY_SIZES> and returns the result.	1901	Calls C<clGetProgramInfo> with C<OpenCL::PROGRAM_BINARY_SIZES> and returns the result.
1604		1902
1605	=for gengetinfo end program	1903	=for gengetinfo end program
1606		1904
1607	=item @blobs = $program->binaries	1905	=item @blobs = $program->binaries
1608		1906
…		…
1629		1927
1630	=for gengetinfo begin kernel	1928	=for gengetinfo begin kernel
1631		1929
1632	=item $string = $kernel->function_name	1930	=item $string = $kernel->function_name
1633		1931
1634	Calls C<clGetKernelInfo> with C<CL_KERNEL_FUNCTION_NAME> and returns the result.	1932	Calls C<clGetKernelInfo> with C<OpenCL::KERNEL_FUNCTION_NAME> and returns the result.
1635		1933
1636	=item $uint = $kernel->num_args	1934	=item $uint = $kernel->num_args
1637		1935
1638	Calls C<clGetKernelInfo> with C<CL_KERNEL_NUM_ARGS> and returns the result.	1936	Calls C<clGetKernelInfo> with C<OpenCL::KERNEL_NUM_ARGS> and returns the result.
1639		1937
1640	=item $uint = $kernel->reference_count	1938	=item $uint = $kernel->reference_count
1641		1939
1642	Calls C<clGetKernelInfo> with C<CL_KERNEL_REFERENCE_COUNT> and returns the result.	1940	Calls C<clGetKernelInfo> with C<OpenCL::KERNEL_REFERENCE_COUNT> and returns the result.
1643		1941
1644	=item $ctx = $kernel->context	1942	=item $ctx = $kernel->context
1645		1943
1646	Calls C<clGetKernelInfo> with C<CL_KERNEL_CONTEXT> and returns the result.	1944	Calls C<clGetKernelInfo> with C<OpenCL::KERNEL_CONTEXT> and returns the result.
1647		1945
1648	=item $program = $kernel->program	1946	=item $program = $kernel->program
1649		1947
1650	Calls C<clGetKernelInfo> with C<CL_KERNEL_PROGRAM> and returns the result.	1948	Calls C<clGetKernelInfo> with C<OpenCL::KERNEL_PROGRAM> and returns the result.
1651		1949
1652	=for gengetinfo end kernel	1950	=for gengetinfo end kernel
1653		1951
1654	=item $packed_value = $kernel->work_group_info ($device, $name)	1952	=item $packed_value = $kernel->work_group_info ($device, $name)
1655		1953
1656	See C<< $platform->info >> for details.	1954	See C<< $platform->info >> for details.
1657		1955
1658	The reason this method is not called C<info> is that there already is an
1659	C<< ->info >> method.
1660
1661	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetKernelWorkGroupInfo.html>	1956	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetKernelWorkGroupInfo.html>
1662		1957
1663	=for gengetinfo begin kernel_work_group	1958	=for gengetinfo begin kernel_work_group
1664		1959
1665	=item $int = $kernel->work_group_size ($device)	1960	=item $int = $kernel->work_group_size ($device)
1666		1961
1667	Calls C<clGetKernelWorkGroupInfo> with C<CL_KERNEL_WORK_GROUP_SIZE> and returns the result.	1962	Calls C<clGetKernelWorkGroupInfo> with C<OpenCL::KERNEL_WORK_GROUP_SIZE> and returns the result.
1668		1963
1669	=item @ints = $kernel->compile_work_group_size ($device)	1964	=item @ints = $kernel->compile_work_group_size ($device)
1670		1965
1671	Calls C<clGetKernelWorkGroupInfo> with C<CL_KERNEL_COMPILE_WORK_GROUP_SIZE> and returns the result.	1966	Calls C<clGetKernelWorkGroupInfo> with C<OpenCL::KERNEL_COMPILE_WORK_GROUP_SIZE> and returns the result.
1672		1967
1673	=item $ulong = $kernel->local_mem_size ($device)	1968	=item $ulong = $kernel->local_mem_size ($device)
1674		1969
1675	Calls C<clGetKernelWorkGroupInfo> with C<CL_KERNEL_LOCAL_MEM_SIZE> and returns the result.	1970	Calls C<clGetKernelWorkGroupInfo> with C<OpenCL::KERNEL_LOCAL_MEM_SIZE> and returns the result.
1676		1971
1677	=item $int = $kernel->preferred_work_group_size_multiple ($device)	1972	=item $int = $kernel->preferred_work_group_size_multiple ($device)
1678		1973
1679	Calls C<clGetKernelWorkGroupInfo> with C<CL_KERNEL_PREFERRED_WORK_GROUP_SIZE_MULTIPLE> and returns the result.	1974	Calls C<clGetKernelWorkGroupInfo> with C<OpenCL::KERNEL_PREFERRED_WORK_GROUP_SIZE_MULTIPLE> and returns the result.
1680		1975
1681	=item $ulong = $kernel->private_mem_size ($device)	1976	=item $ulong = $kernel->private_mem_size ($device)
1682		1977
1683	Calls C<clGetKernelWorkGroupInfo> with C<CL_KERNEL_PRIVATE_MEM_SIZE> and returns the result.	1978	Calls C<clGetKernelWorkGroupInfo> with C<OpenCL::KERNEL_PRIVATE_MEM_SIZE> and returns the result.
1684		1979
1685	=for gengetinfo end kernel_work_group	1980	=for gengetinfo end kernel_work_group
1686		1981
		1982	=item $packed_value = $kernel->arg_info ($idx, $name)
		1983
		1984	See C<< $platform->info >> for details.
		1985
		1986	L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clGetKernelArgInfo.html>
		1987
		1988	=for gengetinfo begin kernel_arg
		1989
		1990	=item $kernel_arg_address_qualifier = $kernel->arg_address_qualifier ($idx)
		1991
		1992	Calls C<clGetKernelArgInfo> with C<OpenCL::KERNEL_ARG_ADDRESS_QUALIFIER> and returns the result.
		1993
		1994	=item $kernel_arg_access_qualifier = $kernel->arg_access_qualifier ($idx)
		1995
		1996	Calls C<clGetKernelArgInfo> with C<OpenCL::KERNEL_ARG_ACCESS_QUALIFIER> and returns the result.
		1997
		1998	=item $string = $kernel->arg_type_name ($idx)
		1999
		2000	Calls C<clGetKernelArgInfo> with C<OpenCL::KERNEL_ARG_TYPE_NAME> and returns the result.
		2001
		2002	=item $kernel_arg_type_qualifier = $kernel->arg_type_qualifier ($idx)
		2003
		2004	Calls C<clGetKernelArgInfo> with C<OpenCL::KERNEL_ARG_TYPE_QUALIFIER> and returns the result.
		2005
		2006	=item $string = $kernel->arg_name ($idx)
		2007
		2008	Calls C<clGetKernelArgInfo> with C<OpenCL::KERNEL_ARG_NAME> and returns the result.
		2009
		2010	=for gengetinfo end kernel_arg
		2011
		2012	=item $kernel->setf ($format, ...)
		2013
		2014	Sets the arguments of a kernel. Since OpenCL 1.1 doesn't have a generic
		2015	way to set arguments (and with OpenCL 1.2 it might be rather slow), you
		2016	need to specify a format argument, much as with C<printf>, to tell OpenCL
		2017	what type of argument it is.
		2018
		2019	The format arguments are single letters:
		2020
		2021	c char
		2022	C unsigned char
		2023	s short
		2024	S unsigned short
		2025	i int
		2026	I unsigned int
		2027	l long
		2028	L unsigned long
		2029
		2030	h half float (0..65535)
		2031	f float
		2032	d double
		2033
		2034	z local (octet size)
		2035
		2036	m memory object (buffer or image)
		2037	a sampler
		2038	e event
		2039
		2040	Space characters in the format string are ignored.
		2041
		2042	Example: set the arguments for a kernel that expects an int, two floats, a buffer and an image.
		2043
		2044	$kernel->setf ("i ff mm", 5, 0.5, 3, $buffer, $image);
		2045
1687	=item $kernel->set_TYPE ($index, $value)	2046	=item $kernel->set_TYPE ($index, $value)
1688		2047
		2048	=item $kernel->set_char ($index, $value)
		2049
		2050	=item $kernel->set_uchar ($index, $value)
		2051
		2052	=item $kernel->set_short ($index, $value)
		2053
		2054	=item $kernel->set_ushort ($index, $value)
		2055
		2056	=item $kernel->set_int ($index, $value)
		2057
		2058	=item $kernel->set_uint ($index, $value)
		2059
		2060	=item $kernel->set_long ($index, $value)
		2061
		2062	=item $kernel->set_ulong ($index, $value)
		2063
		2064	=item $kernel->set_half ($index, $value)
		2065
		2066	=item $kernel->set_float ($index, $value)
		2067
		2068	=item $kernel->set_double ($index, $value)
		2069
		2070	=item $kernel->set_memory ($index, $value)
		2071
		2072	=item $kernel->set_buffer ($index, $value)
		2073
		2074	=item $kernel->set_image ($index, $value)
		2075
		2076	=item $kernel->set_sampler ($index, $value)
		2077
		2078	=item $kernel->set_local ($index, $value)
		2079
		2080	=item $kernel->set_event ($index, $value)
		2081
1689	This is a family of methods to set the kernel argument with the number C<$index> to the give C<$value>.	2082	This is a family of methods to set the kernel argument with the number
1690		2083	C<$index> to the give C<$value>.
1691	TYPE is one of C<char>, C<uchar>, C<short>, C<ushort>, C<int>, C<uint>,
1692	C<long>, C<ulong>, C<half>, C<float>, C<double>, C<memory>, C<buffer>,
1693	C<image2d>, C<image3d>, C<sampler>, C<local> or C<event>.
1694		2084
1695	Chars and integers (including the half type) are specified as integers,	2085	Chars and integers (including the half type) are specified as integers,
1696	float and double as floating point values, memory/buffer/image2d/image3d	2086	float and double as floating point values, memory/buffer/image must be
1697	must be an object of that type or C<undef>, local-memory arguments are	2087	an object of that type or C<undef>, local-memory arguments are set by
1698	set by specifying the size, and sampler and event must be objects of that	2088	specifying the size, and sampler and event must be objects of that type.
1699	type.	2089
		2090	Note that C<set_memory> works for all memory objects (all types of buffers
		2091	and images) - the main purpose of the more specific C<set_TYPE> functions
		2092	is type checking.
1700		2093
1701	Setting an argument for a kernel does NOT keep a reference to the object -	2094	Setting an argument for a kernel does NOT keep a reference to the object -
1702	for example, if you set an argument to some image object, free the image,	2095	for example, if you set an argument to some image object, free the image,
1703	and call the kernel, you will run into undefined behaviour.	2096	and call the kernel, you will run into undefined behaviour.
1704		2097
…		…
1734		2127
1735	=for gengetinfo begin event	2128	=for gengetinfo begin event
1736		2129
1737	=item $queue = $event->command_queue	2130	=item $queue = $event->command_queue
1738		2131
1739	Calls C<clGetEventInfo> with C<CL_EVENT_COMMAND_QUEUE> and returns the result.	2132	Calls C<clGetEventInfo> with C<OpenCL::EVENT_COMMAND_QUEUE> and returns the result.
1740		2133
1741	=item $command_type = $event->command_type	2134	=item $command_type = $event->command_type
1742		2135
1743	Calls C<clGetEventInfo> with C<CL_EVENT_COMMAND_TYPE> and returns the result.	2136	Calls C<clGetEventInfo> with C<OpenCL::EVENT_COMMAND_TYPE> and returns the result.
1744		2137
1745	=item $uint = $event->reference_count	2138	=item $uint = $event->reference_count
1746		2139
1747	Calls C<clGetEventInfo> with C<CL_EVENT_REFERENCE_COUNT> and returns the result.	2140	Calls C<clGetEventInfo> with C<OpenCL::EVENT_REFERENCE_COUNT> and returns the result.
1748		2141
1749	=item $uint = $event->command_execution_status	2142	=item $uint = $event->command_execution_status
1750		2143
1751	Calls C<clGetEventInfo> with C<CL_EVENT_COMMAND_EXECUTION_STATUS> and returns the result.	2144	Calls C<clGetEventInfo> with C<OpenCL::EVENT_COMMAND_EXECUTION_STATUS> and returns the result.
1752		2145
1753	=item $ctx = $event->context	2146	=item $ctx = $event->context
1754		2147
1755	Calls C<clGetEventInfo> with C<CL_EVENT_CONTEXT> and returns the result.	2148	Calls C<clGetEventInfo> with C<OpenCL::EVENT_CONTEXT> and returns the result.
1756		2149
1757	=for gengetinfo end event	2150	=for gengetinfo end event
1758		2151
1759	=item $packed_value = $ev->profiling_info ($name)	2152	=item $packed_value = $ev->profiling_info ($name)
1760		2153
…		…
1767		2160
1768	=for gengetinfo begin profiling	2161	=for gengetinfo begin profiling
1769		2162
1770	=item $ulong = $event->profiling_command_queued	2163	=item $ulong = $event->profiling_command_queued
1771		2164
1772	Calls C<clGetEventProfilingInfo> with C<CL_PROFILING_COMMAND_QUEUED> and returns the result.	2165	Calls C<clGetEventProfilingInfo> with C<OpenCL::PROFILING_COMMAND_QUEUED> and returns the result.
1773		2166
1774	=item $ulong = $event->profiling_command_submit	2167	=item $ulong = $event->profiling_command_submit
1775		2168
1776	Calls C<clGetEventProfilingInfo> with C<CL_PROFILING_COMMAND_SUBMIT> and returns the result.	2169	Calls C<clGetEventProfilingInfo> with C<OpenCL::PROFILING_COMMAND_SUBMIT> and returns the result.
1777		2170
1778	=item $ulong = $event->profiling_command_start	2171	=item $ulong = $event->profiling_command_start
1779		2172
1780	Calls C<clGetEventProfilingInfo> with C<CL_PROFILING_COMMAND_START> and returns the result.	2173	Calls C<clGetEventProfilingInfo> with C<OpenCL::PROFILING_COMMAND_START> and returns the result.
1781		2174
1782	=item $ulong = $event->profiling_command_end	2175	=item $ulong = $event->profiling_command_end
1783		2176
1784	Calls C<clGetEventProfilingInfo> with C<CL_PROFILING_COMMAND_END> and returns the result.	2177	Calls C<clGetEventProfilingInfo> with C<OpenCL::PROFILING_COMMAND_END> and returns the result.
1785		2178
1786	=for gengetinfo end profiling	2179	=for gengetinfo end profiling
1787		2180
1788	=back	2181	=back
1789		2182
…		…
1796	=item $ev->set_status ($execution_status)	2189	=item $ev->set_status ($execution_status)
1797		2190
1798	Sets the execution status of the user event. Can only be called once,	2191	Sets the execution status of the user event. Can only be called once,
1799	either with OpenCL::COMPLETE or a negative number as status.	2192	either with OpenCL::COMPLETE or a negative number as status.
1800		2193
		2194	execution_status: OpenCL::COMPLETE or a negative integer.
		2195
1801	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clSetUserEventStatus.html>	2196	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clSetUserEventStatus.html>
1802		2197
1803	=back	2198	=back
		2199
		2200	=head2 THE OpenCL::Mapped CLASS
		2201
		2202	This class represents objects mapped into host memory. They are
		2203	represented by a blessed string scalar. The string data is the mapped
		2204	memory area, that is, if you read or write it, then the mapped object is
		2205	accessed directly.
		2206
		2207	You must only ever use operations that modify the string in-place - for
		2208	example, a C<substr> that doesn't change the length, or maybe a regex that
		2209	doesn't change the length. Any other operation might cause the data to be
		2210	copied.
		2211
		2212	When the object is destroyed it will enqueue an implicit unmap operation
		2213	on the queue that was used to create it.
		2214
		2215	Keep in mind that you I<need> to unmap (or destroy) mapped objects before
		2216	OpenCL sees the changes, even if some implementations don't need this
		2217	sometimes.
		2218
		2219	Example, replace the first two floats in the mapped buffer by 1 and 2.
		2220
		2221	my $mapped = $queue->map_buffer ($buf, ...
		2222	$mapped->event->wait; # make sure it's there
		2223
		2224	# now replace first 8 bytes by new data, which is exactly 8 bytes long
		2225	# we blindly assume device endianness to equal host endianness
		2226	# (and of course, we assume iee 754 single precision floats :)
		2227	substr $$mapped, 0, 8, pack "f*", 1, 2;
		2228
		2229	=over 4
		2230
		2231	=item $ev = $mapped->unmap ($wait_events...)
		2232
		2233	Unmaps the mapped memory object, using the queue originally used to create
		2234	it, quite similarly to C<< $queue->unmap ($mapped, ...) >>.
		2235
		2236	=item $bool = $mapped->mapped
		2237
		2238	Returns whether the object is still mapped - true before an C<unmap> is
		2239	enqueued, false afterwards.
		2240
		2241	=item $ev = $mapped->event
		2242
		2243	Return the event object associated with the mapped object. Initially, this
		2244	will be the event object created when mapping the object, and after an
		2245	unmap, this will be the event object that the unmap operation created.
		2246
		2247	=item $mapped->wait
		2248
		2249	Same as C<< $mapped->event->wait >> - makes sure no operations on this
		2250	mapped object are outstanding.
		2251
		2252	=item $bytes = $mapped->size
		2253
		2254	Returns the size of the mapped area, in bytes. Same as C<length $$mapped>.
		2255
		2256	=item $ptr = $mapped->ptr
		2257
		2258	Returns the raw memory address of the mapped area.
		2259
		2260	=item $mapped->set ($offset, $data)
		2261
		2262	Replaces the data at the given C<$offset> in the memory area by the new
		2263	C<$data>. This method is safer than direct manipulation of C<$mapped>
		2264	because it does bounds-checking, but also slower.
		2265
		2266	=item $data = $mapped->get ($offset, $length)
		2267
		2268	Returns (without copying) a scalar representing the data at the given
		2269	C<$offset> and C<$length> in the mapped memory area. This is the same as
		2270	the following substr, except much slower;
		2271
		2272	$data = substr $$mapped, $offset, $length
		2273
		2274	=cut
		2275
		2276	sub OpenCL::Mapped::get {
		2277	substr ${$_[0]}, $_[1], $_[2]
		2278	}
		2279
		2280	=back
		2281
		2282	=head2 THE OpenCL::MappedBuffer CLASS
		2283
		2284	This is a subclass of OpenCL::Mapped, representing mapped buffers.
		2285
		2286	=head2 THE OpenCL::MappedImage CLASS
		2287
		2288	This is a subclass of OpenCL::Mapped, representing mapped images.
		2289
		2290	=over 4
		2291
		2292	=item $bytes = $mapped->row_pitch
		2293
		2294	=item $bytes = $mapped->slice_pitch
		2295
		2296	Return the row or slice pitch of the image that has been mapped.
		2297
		2298	=back
		2299
1804		2300
1805	=cut	2301	=cut
1806		2302
1807	1;	2303	1;
1808		2304

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