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

Comparing OpenCL/OpenCL.pm (file contents):
Revision 1.47 by root, Sat Apr 21 19:48:58 2012 UTC vs.
Revision 1.60 by root, Wed Apr 25 21:48:44 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:
49	no implementation was available to me :).
50		49
51	http://www.khronos.org/registry/cl/specs/opencl-1.1.pdf	50	http://www.khronos.org/registry/cl/specs/opencl-1.1.pdf
		51	http://www.khronos.org/registry/cl/specs/opencl-1.2.pdf
		52	http://www.khronos.org/registry/cl/specs/opencl-1.2-extensions.pdf
52		53
53	OpenCL manpages:	54	OpenCL manpages:
54		55
55	http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/	56	http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/
		57	http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/
56		58
57	If you are into UML class diagrams, the following diagram might help - if	59	If you are into UML class diagrams, the following diagram might help - if
58	not, it will be mildly cobfusing:	60	not, it will be mildly confusing (also, the class hierarchy of this module
		61	is much more fine-grained):
59		62
60	http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/classDiagram.html	63	http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/classDiagram.html
61		64
62	Here's a tutorial from AMD (very AMD-centric, too), not sure how useful it	65	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:	66	is, but at least it's free of charge:
64		67
65	http://developer.amd.com/zones/OpenCLZone/courses/Documents/Introduction_to_OpenCL_Programming%20Training_Guide%20%28201005%29.pdf	68	http://developer.amd.com/zones/OpenCLZone/courses/Documents/Introduction_to_OpenCL_Programming%20Training_Guide%20%28201005%29.pdf
…		…
138	=head2 Create a buffer with some predefined data, read it back synchronously,	141	=head2 Create a buffer with some predefined data, read it back synchronously,
139	then asynchronously.	142	then asynchronously.
140		143
141	my $buf = $ctx->buffer_sv (OpenCL::MEM_COPY_HOST_PTR, "helmut");	144	my $buf = $ctx->buffer_sv (OpenCL::MEM_COPY_HOST_PTR, "helmut");
142		145
143	$queue->enqueue_read_buffer ($buf, 1, 1, 3, my $data);	146	$queue->read_buffer ($buf, 1, 1, 3, my $data);
144	print "$data\n";	147	print "$data\n";
145		148
146	my $ev = $queue->enqueue_read_buffer ($buf, 0, 1, 3, my $data);	149	my $ev = $queue->read_buffer ($buf, 0, 1, 3, my $data);
147	$ev->wait;	150	$ev->wait;
148	print "$data\n"; # prints "elm"	151	print "$data\n"; # prints "elm"
149		152
150	=head2 Create and build a program, then create a kernel out of one of its	153	=head2 Create and build a program, then create a kernel out of one of its
151	functions.	154	functions.
…		…
157	$id = get_global_id (0);	160	$id = get_global_id (0);
158	output [id] = input [id] * input [id];	161	output [id] = input [id] * input [id];
159	}	162	}
160	';	163	';
161		164
162	my $prog = $ctx->program_with_source ($src);	165	my $prog = $ctx->build_program ($src);
163
164	# build croaks on compile errors, so catch it and print the compile errors
165	eval { $prog->build ($dev, "-cl-fast-relaxed-math"); 1 }
166	or die $prog->build_log;
167
168	my $kernel = $prog->kernel ("squareit");	166	my $kernel = $prog->kernel ("squareit");
169		167
170	=head2 Create some input and output float buffers, then call the	168	=head2 Create some input and output float buffers, then call the
171	'squareit' kernel on them.	169	'squareit' kernel on them.
172		170
…		…
176	# set buffer	174	# set buffer
177	$kernel->set_buffer (0, $input);	175	$kernel->set_buffer (0, $input);
178	$kernel->set_buffer (1, $output);	176	$kernel->set_buffer (1, $output);
179		177
180	# execute it for all 4 numbers	178	# execute it for all 4 numbers
181	$queue->enqueue_nd_range_kernel ($kernel, undef, [4], undef);	179	$queue->nd_range_kernel ($kernel, undef, [4], undef);
182		180
183	# enqueue a synchronous read	181	# enqueue a synchronous read
184	$queue->enqueue_read_buffer ($output, 1, 0, OpenCL::SIZEOF_FLOAT * 4, my $data);	182	$queue->read_buffer ($output, 1, 0, OpenCL::SIZEOF_FLOAT * 4, my $data);
185		183
186	# print the results:	184	# print the results:
187	printf "%s\n", join ", ", unpack "f*", $data;	185	printf "%s\n", join ", ", unpack "f*", $data;
188		186
189	=head2 The same enqueue operations as before, but assuming an out-of-order queue,	187	=head2 The same enqueue operations as before, but assuming an out-of-order queue,
190	showing off barriers.	188	showing off barriers.
191		189
192	# execute it for all 4 numbers	190	# execute it for all 4 numbers
193	$queue->enqueue_nd_range_kernel ($kernel, undef, [4], undef);	191	$queue->nd_range_kernel ($kernel, undef, [4], undef);
194		192
195	# enqueue a barrier to ensure in-order execution	193	# enqueue a barrier to ensure in-order execution
196	$queue->enqueue_barrier;	194	$queue->barrier;
197		195
198	# enqueue an async read	196	# enqueue an async read
199	$queue->enqueue_read_buffer ($output, 0, 0, OpenCL::SIZEOF_FLOAT * 4, my $data);	197	$queue->read_buffer ($output, 0, 0, OpenCL::SIZEOF_FLOAT * 4, my $data);
200		198
201	# wait for all requests to finish	199	# wait for all requests to finish
202	$queue->finish;	200	$queue->finish;
203		201
204	=head2 The same enqueue operations as before, but assuming an out-of-order queue,	202	=head2 The same enqueue operations as before, but assuming an out-of-order queue,
205	showing off event objects and wait lists.	203	showing off event objects and wait lists.
206		204
207	# execute it for all 4 numbers	205	# execute it for all 4 numbers
208	my $ev = $queue->enqueue_nd_range_kernel ($kernel, undef, [4], undef);	206	my $ev = $queue->nd_range_kernel ($kernel, undef, [4], undef);
209		207
210	# enqueue an async read	208	# enqueue an async read
211	$ev = $queue->enqueue_read_buffer ($output, 0, 0, OpenCL::SIZEOF_FLOAT * 4, my $data, $ev);	209	$ev = $queue->read_buffer ($output, 0, 0, OpenCL::SIZEOF_FLOAT * 4, my $data, $ev);
212		210
213	# wait for the last event to complete	211	# wait for the last event to complete
214	$ev->wait;	212	$ev->wait;
215		213
216	=head2 Use the OpenGL module to share a texture between OpenCL and OpenGL and draw some julia	214	=head2 Use the OpenGL module to share a texture between OpenCL and OpenGL and draw some julia
…		…
267		265
268	float3 colour = (float3)(z.x, z.y, z.x * z.y);	266	float3 colour = (float3)(z.x, z.y, z.x * z.y);
269	write_imagef (img, (int2)(get_global_id (0), get_global_id (1)), (float4)(colour * p.x * p.x, 1.));	267	write_imagef (img, (int2)(get_global_id (0), get_global_id (1)), (float4)(colour * p.x * p.x, 1.));
270	}	268	}
271	EOF	269	EOF
		270
272	my $prog = $ctx->program_with_source ($src);	271	my $prog = $ctx->build_program ($src);
273	eval { $prog->build ($dev); 1 }
274	or die $prog->build_log ($dev);
275
276	my $kernel = $prog->kernel ("juliatunnel");	272	my $kernel = $prog->kernel ("juliatunnel");
277		273
278	# program compiled, kernel ready, now draw and loop	274	# program compiled, kernel ready, now draw and loop
279		275
280	for (my $time; ; ++$time) {	276	for (my $time; ; ++$time) {
281	# acquire objects from opengl	277	# acquire objects from opengl
282	$queue->enqueue_acquire_gl_objects ([$tex]);	278	$queue->acquire_gl_objects ([$tex]);
283		279
284	# configure and run our kernel	280	# configure and run our kernel
285	$kernel->set_image2d (0, $tex);	281	$kernel->set_image2d (0, $tex);
286	$kernel->set_float (1, $time);	282	$kernel->set_float (1, $time);
287	$queue->enqueue_nd_range_kernel ($kernel, undef, [256, 256], undef);	283	$queue->nd_range_kernel ($kernel, undef, [256, 256], undef);
288		284
289	# release objects to opengl again	285	# release objects to opengl again
290	$queue->enqueue_release_gl_objects ([$tex]);	286	$queue->release_gl_objects ([$tex]);
291		287
292	# wait	288	# wait
293	$queue->finish;	289	$queue->finish;
294		290
295	# now draw the texture, the defaults should be all right	291	# now draw the texture, the defaults should be all right
…		…
383		379
384	For this to work, the OpenGL library must be loaded, a GLX context must	380	For this to work, the OpenGL library must be loaded, a GLX context must
385	have been created and be made current, and C<dlsym> must be available and	381	have been created and be made current, and C<dlsym> must be available and
386	capable of finding the function via C<RTLD_DEFAULT>.	382	capable of finding the function via C<RTLD_DEFAULT>.
387		383
		384	=head2 EVENT SYSTEM
		385
		386	OpenCL can generate a number of (potentially) asynchronous events, for
		387	example, after compiling a program, to signal a context-related error or,
		388	perhaps most important, to signal completion of queued jobs (by setting
		389	callbacks on OpenCL::Event objects).
		390
		391	To facilitate this, this module maintains an event queue - each
		392	time an asynchronous event happens, it is queued, and perl will be
		393	interrupted. This is implemented via the L<Async::Interrupt> module. In
		394	addition, this module has L<AnyEvent> support, so it can seamlessly
		395	integrate itself into many event loops.
		396
		397	Since this module is a bit hard to understand, here are some case examples:
		398
		399	=head3 Don't use callbacks.
		400
		401	When your program never uses any callbacks, then there will never be any
		402	notifications you need to take care of, and therefore no need to worry
		403	about all this.
		404
		405	You can achieve a great deal by explicitly waiting for events, or using
		406	barriers and flush calls. In many programs, there is no need at all to
		407	tinker with asynchronous events.
		408
		409	=head3 Use AnyEvent
		410
		411	This module automatically registers a watcher that invokes all outstanding
		412	event callbacks when AnyEvent is initialised (and block asynchronous
		413	interruptions). Using this mode of operations is the safest and most
		414	recommended one.
		415
		416	To use this, simply use AnyEvent and this module normally, make sure you
		417	have an event loop running:
		418
		419	use Gtk2 -init;
		420	use AnyEvent;
		421
		422	# initialise AnyEvent, by creating a watcher, or:
		423	AnyEvent::detect;
		424
		425	my $e = $queue->marker;
		426	$e->cb (sub {
		427	warn "opencl is finished\n";
		428	})
		429
		430	main Gtk2;
		431
		432	Note that this module will not initialise AnyEvent for you. Before
		433	AnyEvent is initialised, the module will asynchronously interrupt perl
		434	instead. To avoid any surprises, it's best to explicitly initialise
		435	AnyEvent.
		436
		437	You can temporarily enable asynchronous interruptions (see next paragraph)
		438	by calling C<$OpenCL::INTERRUPT->unblock> and disable them again by
		439	calling C<$OpenCL::INTERRUPT->block>.
		440
		441	=head3 Let yourself be interrupted at any time
		442
		443	This mode is the default unless AnyEvent is loaded and initialised. In
		444	this mode, OpenCL asynchronously interrupts a running perl program. The
		445	emphasis is on both I<asynchronously> and I<running> here.
		446
		447	Asynchronously means that perl might execute your callbacks at any
		448	time. For example, in the following code (I<THAT YOU SHOULD NOT COPY>),
		449	the C<until> loop following the marker call will be interrupted by the
		450	callback:
		451
		452	my $e = $queue->marker;
		453	my $flag;
		454	$e->cb (sub { $flag = 1 });
		455	1 until $flag;
		456	# $flag is now 1
		457
		458	The reason why you shouldn't blindly copy the above code is that
		459	busy waiting is a really really bad thing, and really really bad for
		460	performance.
		461
		462	While at first this asynchronous business might look exciting, it can be
		463	really hard, because you need to be prepared for the callback code to be
		464	executed at any time, which limits the amount of things the callback code
		465	can do safely.
		466
		467	This can be mitigated somewhat by using C<<
		468	$OpenCL::INTERRUPT->scope_block >> (see the L<Async::Interrupt>
		469	documentation for details).
		470
		471	The other problem is that your program must be actively I<running> to be
		472	interrupted. When you calculate stuff, your program is running. When you
		473	hang in some C functions or other block execution (by calling C<sleep>,
		474	C<select>, running an event loop and so on), your program is waiting, not
		475	running.
		476
		477	One way around that would be to attach a read watcher to your event loop,
		478	listening for events on C<< $OpenCL::INTERRUPT->pipe_fileno >>, using a
		479	dummy callback (C<sub { }>) to temporarily execute some perl code.
		480
		481	That is then awfully close to using the built-in AnyEvent support above,
		482	though, so consider that one instead.
		483
		484	=head3 Be creative
		485
		486	OpenCL exports the L<Async::Interrupt> object it uses in the global
		487	variable C<$OpenCL::INTERRUPT>. You can configure it in any way you like.
		488
		489	So if you want to feel like a real pro, err, wait, if you feel no risk
		490	menas no fun, you can experiment by implementing your own mode of
		491	operations.
		492
		493	=cut
		494
		495	package OpenCL;
		496
		497	use common::sense;
		498	use Async::Interrupt ();
		499
		500	our $POLL_FUNC; # set by XS
		501
		502	BEGIN {
		503	our $VERSION = '0.97';
		504
		505	require XSLoader;
		506	XSLoader::load (__PACKAGE__, $VERSION);
		507
		508	@OpenCL::Platform::ISA =
		509	@OpenCL::Device::ISA =
		510	@OpenCL::Context::ISA =
		511	@OpenCL::Queue::ISA =
		512	@OpenCL::Memory::ISA =
		513	@OpenCL::Sampler::ISA =
		514	@OpenCL::Program::ISA =
		515	@OpenCL::Kernel::ISA =
		516	@OpenCL::Event::ISA = OpenCL::Object::;
		517
		518	@OpenCL::Buffer::ISA =
		519	@OpenCL::Image::ISA = OpenCL::Memory::;
		520
		521	@OpenCL::BufferObj::ISA = OpenCL::Buffer::;
		522
		523	@OpenCL::Image2D::ISA =
		524	@OpenCL::Image3D::ISA =
		525	@OpenCL::Image2DArray::ISA =
		526	@OpenCL::Image1D::ISA =
		527	@OpenCL::Image1DArray::ISA =
		528	@OpenCL::Image1DBuffer::ISA = OpenCL::Image::;
		529
		530	@OpenCL::UserEvent::ISA = OpenCL::Event::;
		531	}
		532
388	=head2 THE OpenCL PACKAGE	533	=head2 THE OpenCL PACKAGE
389		534
390	=over 4	535	=over 4
391		536
392	=item $int = OpenCL::errno	537	=item $int = OpenCL::errno
…		…
410		555
411	Returns all available OpenCL::Platform objects.	556	Returns all available OpenCL::Platform objects.
412		557
413	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetPlatformIDs.html>	558	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetPlatformIDs.html>
414		559
415	=item $ctx = OpenCL::context_from_type $properties, $type = OpenCL::DEVICE_TYPE_DEFAULT, $notify = undef	560	=item $ctx = OpenCL::context_from_type $properties, $type = OpenCL::DEVICE_TYPE_DEFAULT, $callback->($err, $pvt) = $print_stderr
416		561
417	Tries to create a context from a default device and platform - never worked for me.	562	Tries to create a context from a default device and platform type - never worked for me.
418		563
419	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateContextFromType.html>	564	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateContextFromType.html>
420		565
		566	=item $ctx = OpenCL::context $properties, \@devices, $callback->($err, $pvt) = $print_stderr)
		567
		568	Create a new OpenCL::Context object using the given device object(s). This
		569	function isn't implemented yet, use C<< $platform->context >> instead.
		570
		571	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateContext.html>
		572
421	=item OpenCL::wait_for_events $wait_events...	573	=item OpenCL::wait_for_events $wait_events...
422		574
423	Waits for all events to complete.	575	Waits for all events to complete.
424		576
425	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clWaitForEvents.html>	577	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clWaitForEvents.html>
426		578
		579	=item OpenCL::poll
		580
		581	Checks if there are any outstanding events (see L<EVENT SYSTEM>) and
		582	invokes their callbacks.
		583
		584	=item $OpenCL::INTERRUPT
		585
		586	The L<Async::Interrupt> object used to signal asynchronous events (see
		587	L<EVENT SYSTEM>).
		588
		589	=cut
		590
		591	our $INTERRUPT = new Async::Interrupt c_cb => [$POLL_FUNC, 0];
		592
		593	&_eq_initialise ($INTERRUPT->signal_func);
		594
		595	=item $OpenCL::WATCHER
		596
		597	The L<AnyEvent> watcher object used to watch for asynchronous events (see
		598	L<EVENT SYSTEM>). This variable is C<undef> until L<AnyEvent> has been
		599	loaded I<and> initialised (e.g. by calling C<AnyEvent::detect>).
		600
		601	=cut
		602
		603	our $WATCHER;
		604
		605	sub _init_anyevent {
		606	$INTERRUPT->block;
		607	$WATCHER = AE::io ($INTERRUPT->pipe_fileno, 0, sub { $INTERRUPT->handle });
		608	}
		609
		610	if (defined $AnyEvent::MODEL) {
		611	_init_anyevent;
		612	} else {
		613	push @AnyEvent::post_detect, \&_init_anyevent;
		614	}
		615
427	=back	616	=back
428		617
		618	=head2 THE OpenCL::Object CLASS
		619
		620	This is the base class for all objects in the OpenCL module. The only
		621	method it implements is the C<id> method, which is only useful if you want
		622	to interface to OpenCL on the C level.
		623
		624	=over 4
		625
		626	=item $iv = $obj->id
		627
		628	OpenCL objects are represented by pointers or integers on the C level. If
		629	you want to interface to an OpenCL object directly on the C level, then
		630	you need this value, which is returned by this method. You should use an
		631	C<IV> type in your code and cast that to the correct type.
		632
		633	=cut
		634
		635	sub OpenCL::Object::id {
		636	ref $_[0] eq "SCALAR"
		637	? ${ $_[0] }
		638	: $_[0][0]
		639	}
		640
		641	=back
		642
429	=head2 THE OpenCL::Platform CLASS	643	=head2 THE OpenCL::Platform CLASS
430		644
431	=over 4	645	=over 4
432		646
433	=item @devices = $platform->devices ($type = OpenCL::DEVICE_TYPE_ALL)	647	=item @devices = $platform->devices ($type = OpenCL::DEVICE_TYPE_ALL)
434		648
435	Returns a list of matching OpenCL::Device objects.	649	Returns a list of matching OpenCL::Device objects.
436		650
437	=item $ctx = $platform->context_from_type ($properties, $type = OpenCL::DEVICE_TYPE_DEFAULT, $notify = undef)	651	=item $ctx = $platform->context_from_type ($properties, $type = OpenCL::DEVICE_TYPE_DEFAULT, $callback->($err, $pvt) = $print_stderr)
438		652
439	Tries to create a context. Never worked for me, and you need devices explicitly anyway.	653	Tries to create a context. Never worked for me, and you need devices explicitly anyway.
440		654
441	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateContextFromType.html>	655	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateContextFromType.html>
442		656
443	=item $ctx = $platform->context ($properties = undef, @$devices, $notify = undef)	657	=item $ctx = $platform->context ($properties, \@devices, $callback->($err, $pvt) = $print_stderr)
444		658
445	Create a new OpenCL::Context object using the given device object(s)- a	659	Create a new OpenCL::Context object using the given device object(s)- a
446	CL_CONTEXT_PLATFORM property is supplied automatically.	660	CL_CONTEXT_PLATFORM property is supplied automatically.
447		661
448	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateContext.html>	662	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateContext.html>
…		…
456	It's best to avoid this method and use one of the following convenience	670	It's best to avoid this method and use one of the following convenience
457	wrappers.	671	wrappers.
458		672
459	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetPlatformInfo.html>	673	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetPlatformInfo.html>
460		674
		675	=item $platform->unload_compiler
		676
		677	Attempts to unload the compiler for this platform, for endless
		678	profit. Does nothing on OpenCL 1.1.
		679
		680	L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clUnloadPlatformCompiler.html>
		681
461	=for gengetinfo begin platform	682	=for gengetinfo begin platform
462		683
463	=item $string = $platform->profile	684	=item $string = $platform->profile
464		685
465	Calls C<clGetPlatformInfo> with C<CL_PLATFORM_PROFILE> and returns the result.	686	Calls C<clGetPlatformInfo> with C<CL_PLATFORM_PROFILE> and returns the result.
…		…
752		973
753	Calls C<clGetDeviceInfo> with C<CL_DEVICE_AFFINITY_DOMAINS_EXT> and returns the result.	974	Calls C<clGetDeviceInfo> with C<CL_DEVICE_AFFINITY_DOMAINS_EXT> and returns the result.
754		975
755	=item $uint = $device->reference_count_ext	976	=item $uint = $device->reference_count_ext
756		977
757	Calls C<clGetDeviceInfo> with C<CL_DEVICE_REFERENCE_COUNT_EXT > and returns the result.	978	Calls C<clGetDeviceInfo> with C<CL_DEVICE_REFERENCE_COUNT_EXT> and returns the result.
758		979
759	=item @device_partition_property_exts = $device->partition_style_ext	980	=item @device_partition_property_exts = $device->partition_style_ext
760		981
761	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PARTITION_STYLE_EXT> and returns the result.	982	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PARTITION_STYLE_EXT> and returns the result.
762		983
…		…
765	=back	986	=back
766		987
767	=head2 THE OpenCL::Context CLASS	988	=head2 THE OpenCL::Context CLASS
768		989
769	=over 4	990	=over 4
		991
		992	=item $prog = $ctx->build_program ($program, $options = "")
		993
		994	This convenience function tries to build the program on all devices in
		995	the context. If the build fails, then the function will C<croak> with the
		996	build log. Otherwise ti returns the program object.
		997
		998	The C<$program> can either be a C<OpenCL::Program> object or a string
		999	containing the program. In the latter case, a program objetc will be
		1000	created automatically.
		1001
		1002	=cut
		1003
		1004	sub OpenCL::Context::build_program {
		1005	my ($self, $prog, $options) = @_;
		1006
		1007	require Carp;
		1008
		1009	$prog = $self->program_with_source ($prog)
		1010	unless ref $prog;
		1011
		1012	# we build separately per device so we instantly know which one failed
		1013	for my $dev ($self->devices) {
		1014	eval { $prog->build ([$dev], $options); 1 }
		1015	or Carp::croak ("Building OpenCL program for device '" . $dev->name . "' failed:\n"
		1016	. $prog->build_log ($dev));
		1017	}
		1018
		1019	$prog
		1020	}
770		1021
771	=item $queue = $ctx->queue ($device, $properties)	1022	=item $queue = $ctx->queue ($device, $properties)
772		1023
773	Create a new OpenCL::Queue object from the context and the given device.	1024	Create a new OpenCL::Queue object from the context and the given device.
774		1025
…		…
794	=item $buf = $ctx->buffer_sv ($flags, $data)	1045	=item $buf = $ctx->buffer_sv ($flags, $data)
795		1046
796	Creates a new OpenCL::Buffer (actually OpenCL::BufferObj) object and	1047	Creates a new OpenCL::Buffer (actually OpenCL::BufferObj) object and
797	initialise it with the given data values.	1048	initialise it with the given data values.
798		1049
		1050	=item $img = $ctx->image ($self, $flags, $channel_order, $channel_type, $type, $width, $height, $depth = 0, $array_size = 0, $row_pitch = 0, $slice_pitch = 0, $num_mip_level = 0, $num_samples = 0, $*data = &PL_sv_undef)
		1051
		1052	Creates a new OpenCL::Image object and optionally initialises it with
		1053	the given data values.
		1054
		1055	L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clCreateImage.html>
		1056
799	=item $img = $ctx->image2d ($flags, $channel_order, $channel_type, $width, $height, $row_pitch = 0, $data = undef)	1057	=item $img = $ctx->image2d ($flags, $channel_order, $channel_type, $width, $height, $row_pitch = 0, $data = undef)
800		1058
801	Creates a new OpenCL::Image2D object and optionally initialises it with	1059	Creates a new OpenCL::Image2D object and optionally initialises it with
802	the given data values.	1060	the given data values.
803		1061
…		…
893	=back	1151	=back
894		1152
895	=head2 THE OpenCL::Queue CLASS	1153	=head2 THE OpenCL::Queue CLASS
896		1154
897	An OpenCL::Queue represents an execution queue for OpenCL. You execute	1155	An OpenCL::Queue represents an execution queue for OpenCL. You execute
898	requests by calling their respective C<enqueue_xxx> method and waitinf for	1156	requests by calling their respective method and waiting for it to complete
899	it to complete in some way.	1157	in some way.
900		1158
901	All the enqueue methods return an event object that can be used to wait	1159	Most methods that enqueue some request return an event object that can
902	for completion, unless the method is called in void context, in which case	1160	be used to wait for completion (optionally using a callback), unless
903	no event object is created.	1161	the method is called in void context, in which case no event object is
		1162	created.
904		1163
905	They also allow you to specify any number of other event objects that this	1164	They also allow you to specify any number of other event objects that this
906	request has to wait for before it starts executing, by simply passing the	1165	request has to wait for before it starts executing, by simply passing the
907	event objects as extra parameters to the enqueue methods. To simplify	1166	event objects as extra parameters to the enqueue methods. To simplify
908	program design, this module ignores any C<undef> values in the list of	1167	program design, this module ignores any C<undef> values in the list of
909	events. This makes it possible to code operations such as this, without	1168	events. This makes it possible to code operations such as this, without
910	having to put a valid event object into C<$event> first:	1169	having to put a valid event object into C<$event> first:
911		1170
912	$event = $queue->enqueue_xxx (..., $event);	1171	$event = $queue->xxx (..., $event);
913		1172
914	Queues execute in-order by default, without any parallelism, so in most	1173	Queues execute in-order by default, without any parallelism, so in most
915	cases (i.e. you use only one queue) it's not necessary to wait for or	1174	cases (i.e. you use only one queue) it's not necessary to wait for or
916	create event objects, althoguh an our of order queue is often a bit	1175	create event objects, althoguh an our of order queue is often a bit
917	faster.	1176	faster.
918		1177
919	=over 4	1178	=over 4
920		1179
921	=item $ev = $queue->enqueue_read_buffer ($buffer, $blocking, $offset, $len, $data, $wait_events...)	1180	=item $ev = $queue->read_buffer ($buffer, $blocking, $offset, $len, $data, $wait_events...)
922		1181
923	Reads data from buffer into the given string.	1182	Reads data from buffer into the given string.
924		1183
925	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReadBuffer.html>	1184	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReadBuffer.html>
926		1185
927	=item $ev = $queue->enqueue_write_buffer ($buffer, $blocking, $offset, $data, $wait_events...)	1186	=item $ev = $queue->write_buffer ($buffer, $blocking, $offset, $data, $wait_events...)
928		1187
929	Writes data to buffer from the given string.	1188	Writes data to buffer from the given string.
930		1189
931	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWriteBuffer.html>	1190	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWriteBuffer.html>
932		1191
933	=item $ev = $queue->enqueue_copy_buffer ($src, $dst, $src_offset, $dst_offset, $len, $wait_events...)	1192	=item $ev = $queue->copy_buffer ($src, $dst, $src_offset, $dst_offset, $len, $wait_events...)
934		1193
935	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyBuffer.html>	1194	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyBuffer.html>
936		1195
937	=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...)	1196	=item $ev = $queue->read_buffer_rect (OpenCL::Memory buf, cl_bool blocking, $buf_x, $buf_y, $buf_z, $host_x, $host_y, $host_z, $width, $height, $depth, $buf_row_pitch, $buf_slice_pitch, $host_row_pitch, $host_slice_pitch, $data, $wait_events...)
938		1197
939	http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReadBufferRect.html	1198	http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReadBufferRect.html
940		1199
941	=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...)	1200	=item $ev = $queue->write_buffer_rect (OpenCL::Memory buf, cl_bool blocking, $buf_x, $buf_y, $buf_z, $host_x, $host_y, $host_z, $width, $height, $depth, $buf_row_pitch, $buf_slice_pitch, $host_row_pitch, $host_slice_pitch, $data, $wait_events...)
942		1201
943	http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWriteBufferRect.html	1202	http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWriteBufferRect.html
944		1203
945	=item $ev = $queue->enqueue_read_image ($src, $blocking, $x, $y, $z, $width, $height, $depth, $row_pitch, $slice_pitch, $data, $wait_events...)	1204	=item $ev = $queue->read_image ($src, $blocking, $x, $y, $z, $width, $height, $depth, $row_pitch, $slice_pitch, $data, $wait_events...)
946		1205
947	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyBufferRect.html>	1206	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyBufferRect.html>
948		1207
949	=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...)	1208	=item $ev = $queue->copy_buffer_to_image ($src_buffer, $dst_image, $src_offset, $dst_x, $dst_y, $dst_z, $width, $height, $depth, $wait_events...)
950		1209
951	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReadImage.html>	1210	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReadImage.html>
952		1211
953	=item $ev = $queue->enqueue_write_image ($src, $blocking, $x, $y, $z, $width, $height, $depth, $row_pitch, $slice_pitch, $data, $wait_events...)	1212	=item $ev = $queue->write_image ($src, $blocking, $x, $y, $z, $width, $height, $depth, $row_pitch, $slice_pitch, $data, $wait_events...)
954		1213
955	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWriteImage.html>	1214	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWriteImage.html>
956		1215
957	=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...)	1216	=item $ev = $queue->copy_image ($src_image, $dst_image, $src_x, $src_y, $src_z, $dst_x, $dst_y, $dst_z, $width, $height, $depth, $wait_events...)
958		1217
959	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyImage.html>	1218	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyImage.html>
960		1219
961	=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...)	1220	=item $ev = $queue->copy_image_to_buffer ($src_image, $dst_image, $src_x, $src_y, $src_z, $width, $height, $depth, $dst_offset, $wait_events...)
962		1221
963	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyImageToBuffer.html>	1222	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyImageToBuffer.html>
964		1223
965	=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...)	1224	=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...)
966		1225
967	Yeah.	1226	Yeah.
968		1227
969	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyBufferToImage.html>.	1228	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyBufferToImage.html>.
970		1229
		1230	=item $ev = $queue->fill_buffer ($mem, $pattern, $offset, $size, ...)
		1231
		1232	Fills the given buffer object with repeated applications of C<$pattern>,
		1233	starting at C<$offset> for C<$size> octets.
		1234
		1235	L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clEnqueueFillBuffer.html>
		1236
		1237	=item $ev = $queue->fill_image ($img, $r, $g, $b, $a, $x, $y, $z, $width, $height, $depth, ...)
		1238
		1239	Fills the given image area with the given rgba colour components. The
		1240	components are normally floating point values between C<0> and C<1>,
		1241	except when the image channel data type is a signe dor unsigned
		1242	unnormalised format, in which case the range is determined by the format.
		1243
		1244	L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clEnqueueFillImage.html>
		1245
971	=item $ev = $queue->enqueue_task ($kernel, $wait_events...)	1246	=item $ev = $queue->task ($kernel, $wait_events...)
972		1247
973	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueTask.html>	1248	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueTask.html>
974		1249
975	=item $ev = $queue->enqueue_nd_range_kernel ($kernel, @$global_work_offset, @$global_work_size, @$local_work_size, $wait_events...)	1250	=item $ev = $queue->nd_range_kernel ($kernel, \@global_work_offset, \@global_work_size, \@local_work_size, $wait_events...)
976		1251
977	Enqueues a kernel execution.	1252	Enqueues a kernel execution.
978		1253
979	@$global_work_size must be specified as a reference to an array of	1254	\@global_work_size must be specified as a reference to an array of
980	integers specifying the work sizes (element counts).	1255	integers specifying the work sizes (element counts).
981		1256
982	@$global_work_offset must be either C<undef> (in which case all offsets	1257	\@global_work_offset must be either C<undef> (in which case all offsets
983	are C<0>), or a reference to an array of work offsets, with the same number	1258	are C<0>), or a reference to an array of work offsets, with the same number
984	of elements as @$global_work_size.	1259	of elements as \@global_work_size.
985		1260
986	@$local_work_size must be either C<undef> (in which case the	1261	\@local_work_size must be either C<undef> (in which case the
987	implementation is supposed to choose good local work sizes), or a	1262	implementation is supposed to choose good local work sizes), or a
988	reference to an array of local work sizes, with the same number of	1263	reference to an array of local work sizes, with the same number of
989	elements as @$global_work_size.	1264	elements as \@global_work_size.
990		1265
991	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueNDRangeKernel.html>	1266	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueNDRangeKernel.html>
992		1267
993	=item $ev = $queue->enqueue_acquire_gl_objects ([object, ...], $wait_events...)	1268	=item $ev = $queue->acquire_gl_objects ([object, ...], $wait_events...)
994		1269
995	Enqueues a list (an array-ref of OpenCL::Memory objects) to be acquired	1270	Enqueues a list (an array-ref of OpenCL::Memory objects) to be acquired
996	for subsequent OpenCL usage.	1271	for subsequent OpenCL usage.
997		1272
998	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueAcquireGLObjects.html>	1273	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueAcquireGLObjects.html>
999		1274
1000	=item $ev = $queue->enqueue_release_gl_objects ([object, ...], $wait_events...)	1275	=item $ev = $queue->release_gl_objects ([object, ...], $wait_events...)
1001		1276
1002	Enqueues a list (an array-ref of OpenCL::Memory objects) to be released	1277	Enqueues a list (an array-ref of OpenCL::Memory objects) to be released
1003	for subsequent OpenGL usage.	1278	for subsequent OpenGL usage.
1004		1279
1005	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReleaseGLObjects.html>	1280	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReleaseGLObjects.html>
1006		1281
1007	=item $ev = $queue->enqueue_wait_for_events ($wait_events...)	1282	=item $ev = $queue->wait_for_events ($wait_events...)
1008		1283
1009	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWaitForEvents.html>	1284	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWaitForEvents.html>
1010		1285
1011	=item $ev = $queue->enqueue_marker ($wait_events...)	1286	=item $ev = $queue->marker ($wait_events...)
1012		1287
1013	L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clEnqueueMarkerWithWaitList.html>	1288	L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clEnqueueMarkerWithWaitList.html>
1014		1289
1015	=item $ev = $queue->enqueue_barrier ($wait_events...)	1290	=item $ev = $queue->barrier ($wait_events...)
1016		1291
1017	L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clEnqueueBarrierWithWaitList.html>	1292	L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clEnqueueBarrierWithWaitList.html>
1018		1293
1019	=item $queue->flush	1294	=item $queue->flush
1020		1295
…		…
1143	OpenCL::Image1DArray, OpenCL::Image1DBuffer, OpenCL::Image2D,	1418	OpenCL::Image1DArray, OpenCL::Image1DBuffer, OpenCL::Image2D,
1144	OpenCL::Image2DArray and OpenCL::Image3D.	1419	OpenCL::Image2DArray and OpenCL::Image3D.
1145		1420
1146	=over 4	1421	=over 4
1147		1422
1148	=item $packed_value = $ev->image_info ($name)	1423	=item $packed_value = $image->image_info ($name)
1149		1424
1150	See C<< $platform->info >> for details.	1425	See C<< $platform->info >> for details.
1151		1426
1152	The reason this method is not called C<info> is that there already is an	1427	The reason this method is not called C<info> is that there already is an
1153	C<< ->info >> method inherited from C<OpenCL::Memory>.	1428	C<< ->info >> method inherited from C<OpenCL::Memory>.
1154		1429
1155	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetImageInfo.html>	1430	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetImageInfo.html>
1156		1431
		1432	=item ($channel_order, $channel_data_type) = $image->format
		1433
		1434	Returns the channel order and type used to create the image by calling
		1435	C<clGetImageInfo> with C<CL_IMAGE_FORMAT>.
		1436
1157	=for gengetinfo begin image	1437	=for gengetinfo begin image
1158		1438
1159	=item $int = $image->element_size	1439	=item $int = $image->element_size
1160		1440
1161	Calls C<clGetImageInfo> with C<CL_IMAGE_ELEMENT_SIZE> and returns the result.	1441	Calls C<clGetImageInfo> with C<CL_IMAGE_ELEMENT_SIZE> and returns the result.
…		…
1234		1514
1235	=head2 THE OpenCL::Program CLASS	1515	=head2 THE OpenCL::Program CLASS
1236		1516
1237	=over 4	1517	=over 4
1238		1518
1239	=item $program->build ($device, $options = "")	1519	=item $program->build (\@devices = undef, $options = "", $cb->($program) = undef)
1240		1520
1241	Tries to build the program with the givne options.	1521	Tries to build the program with the given options. See also the
		1522	C<$ctx->build> convenience function.
		1523
		1524	If a callback is specified, then it will be called when compilation is
		1525	finished. Note that many OpenCL implementations block your program while
		1526	compiling whether you use a callback or not. See C<build_async> if you
		1527	want to make sure the build is done in the background.
		1528
		1529	Note that some OpenCL implementations atc up badly, and don't call the
		1530	callback in some error cases (but call it in others). This implementation
		1531	assumes the callback will always be called, and leaks memory if this is
		1532	not so. So best make sure you don't pass in invalid values.
1242		1533
1243	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clBuildProgram.html>	1534	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clBuildProgram.html>
		1535
		1536	=item $program->build_async (\@devices = undef, $options = "", $cb->($program) = undef)
		1537
		1538	Similar to C<< ->build >>, except it starts a thread, and never fails (you
		1539	need to check the compilation status form the callback, or by polling).
1244		1540
1245	=item $packed_value = $program->build_info ($device, $name)	1541	=item $packed_value = $program->build_info ($device, $name)
1246		1542
1247	Similar to C<< $platform->info >>, but returns build info for a previous	1543	Similar to C<< $platform->info >>, but returns build info for a previous
1248	build attempt for the given device.	1544	build attempt for the given device.
…		…
1253		1549
1254	Creates an OpenCL::Kernel object out of the named C<__kernel> function in	1550	Creates an OpenCL::Kernel object out of the named C<__kernel> function in
1255	the program.	1551	the program.
1256		1552
1257	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateKernel.html>	1553	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateKernel.html>
		1554
		1555	=item @kernels = $program->kernels_in_program
		1556
		1557	Returns all kernels successfully compiled for all devices in program.
		1558
		1559	http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateKernelsInProgram.html
1258		1560
1259	=for gengetinfo begin program_build	1561	=for gengetinfo begin program_build
1260		1562
1261	=item $build_status = $program->build_status ($device)	1563	=item $build_status = $program->build_status ($device)
1262		1564
…		…
1384		1686
1385	Calls C<clGetKernelWorkGroupInfo> with C<CL_KERNEL_PRIVATE_MEM_SIZE> and returns the result.	1687	Calls C<clGetKernelWorkGroupInfo> with C<CL_KERNEL_PRIVATE_MEM_SIZE> and returns the result.
1386		1688
1387	=for gengetinfo end kernel_work_group	1689	=for gengetinfo end kernel_work_group
1388		1690
		1691	=item $kernel->setf ($format, ...)
		1692
		1693	Sets the arguments of a kernel. Since OpenCL 1.1 doesn't have a generic
		1694	way to set arguments (and with OpenCL 1.2 it might be rather slow), you
		1695	need to specify a format argument, much as with C<printf>, to tell OpenCL
		1696	what type of argument it is.
		1697
		1698	The format arguments are single letters:
		1699
		1700	c char
		1701	C unsigned char
		1702	s short
		1703	S unsigned short
		1704	i int
		1705	I unsigned int
		1706	l long
		1707	L unsigned long
		1708
		1709	h half float (0..65535)
		1710	f float
		1711	d double
		1712
		1713	z local (octet size)
		1714
		1715	m memory object (buffer or image)
		1716	a sampler
		1717	e event
		1718
		1719	Space characters in the format string are ignored.
		1720
		1721	Example: set the arguments for a kernel that expects an int, two floats, a buffer and an image.
		1722
		1723	$kernel->setf ("i ff mm", 5, 0.5, 3, $buffer, $image);
		1724
1389	=item $kernel->set_TYPE ($index, $value)	1725	=item $kernel->set_TYPE ($index, $value)
1390		1726
		1727	=item $kernel->set_char ($index, $value)
		1728
		1729	=item $kernel->set_uchar ($index, $value)
		1730
		1731	=item $kernel->set_short ($index, $value)
		1732
		1733	=item $kernel->set_ushort ($index, $value)
		1734
		1735	=item $kernel->set_int ($index, $value)
		1736
		1737	=item $kernel->set_uint ($index, $value)
		1738
		1739	=item $kernel->set_long ($index, $value)
		1740
		1741	=item $kernel->set_ulong ($index, $value)
		1742
		1743	=item $kernel->set_half ($index, $value)
		1744
		1745	=item $kernel->set_float ($index, $value)
		1746
		1747	=item $kernel->set_double ($index, $value)
		1748
		1749	=item $kernel->set_memory ($index, $value)
		1750
		1751	=item $kernel->set_buffer ($index, $value)
		1752
		1753	=item $kernel->set_image ($index, $value)
		1754
		1755	=item $kernel->set_sampler ($index, $value)
		1756
		1757	=item $kernel->set_local ($index, $value)
		1758
		1759	=item $kernel->set_event ($index, $value)
		1760
1391	This is a family of methods to set the kernel argument with the number C<$index> to the give C<$value>.	1761	This is a family of methods to set the kernel argument with the number
1392		1762	C<$index> to the give C<$value>.
1393	TYPE is one of C<char>, C<uchar>, C<short>, C<ushort>, C<int>, C<uint>,
1394	C<long>, C<ulong>, C<half>, C<float>, C<double>, C<memory>, C<buffer>,
1395	C<image2d>, C<image3d>, C<sampler>, C<local> or C<event>.
1396		1763
1397	Chars and integers (including the half type) are specified as integers,	1764	Chars and integers (including the half type) are specified as integers,
1398	float and double as floating point values, memory/buffer/image2d/image3d	1765	float and double as floating point values, memory/buffer/image must be
1399	must be an object of that type or C<undef>, local-memory arguments are	1766	an object of that type or C<undef>, local-memory arguments are set by
1400	set by specifying the size, and sampler and event must be objects of that	1767	specifying the size, and sampler and event must be objects of that type.
1401	type.	1768
		1769	Note that C<set_memory> works for all memory objects (all types of buffers
		1770	and images) - the main purpose of the more specific C<set_TYPE> functions
		1771	is type checking.
		1772
		1773	Setting an argument for a kernel does NOT keep a reference to the object -
		1774	for example, if you set an argument to some image object, free the image,
		1775	and call the kernel, you will run into undefined behaviour.
1402		1776
1403	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clSetKernelArg.html>	1777	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clSetKernelArg.html>
1404		1778
1405	=back	1779	=back
1406		1780
…		…
1415		1789
1416	Waits for the event to complete.	1790	Waits for the event to complete.
1417		1791
1418	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clWaitForEvents.html>	1792	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clWaitForEvents.html>
1419		1793
		1794	=item $ev->cb ($exec_callback_type, $callback->($event, $event_command_exec_status))
		1795
		1796	Adds a callback to the callback stack for the given event type. There is
		1797	no way to remove a callback again.
		1798
		1799	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clSetEventCallback.html>
		1800
1420	=item $packed_value = $ev->info ($name)	1801	=item $packed_value = $ev->info ($name)
1421		1802
1422	See C<< $platform->info >> for details.	1803	See C<< $platform->info >> for details.
1423		1804
1424	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetEventInfo.html>	1805	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetEventInfo.html>
…		…
1484		1865
1485	=over 4	1866	=over 4
1486		1867
1487	=item $ev->set_status ($execution_status)	1868	=item $ev->set_status ($execution_status)
1488		1869
		1870	Sets the execution status of the user event. Can only be called once,
		1871	either with OpenCL::COMPLETE or a negative number as status.
		1872
1489	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clSetUserEventStatus.html>	1873	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clSetUserEventStatus.html>
1490		1874
1491	=back	1875	=back
1492		1876
1493	=cut	1877	=cut
1494
1495	package OpenCL;
1496
1497	use common::sense;
1498
1499	BEGIN {
1500	our $VERSION = '0.96';
1501
1502	require XSLoader;
1503	XSLoader::load (__PACKAGE__, $VERSION);
1504
1505	@OpenCL::Buffer::ISA =
1506	@OpenCL::Image::ISA = OpenCL::Memory::;
1507
1508	@OpenCL::BufferObj::ISA = OpenCL::Buffer::;
1509
1510	@OpenCL::Image2D::ISA =
1511	@OpenCL::Image3D::ISA =
1512	@OpenCL::Image2DArray::ISA =
1513	@OpenCL::Image1D::ISA =
1514	@OpenCL::Image1DArray::ISA =
1515	@OpenCL::Image1DBuffer::ISA = OpenCL::Image::;
1516
1517	@OpenCL::UserEvent::ISA = OpenCL::Event::;
1518	}
1519		1878
1520	1;	1879	1;
1521		1880
1522	=head1 AUTHOR	1881	=head1 AUTHOR
1523		1882

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Comparing OpenCL/OpenCL.pm (file contents): Revision 1.47 by root, Sat Apr 21 19:48:58 2012 UTC vs. Revision 1.60 by root, Wed Apr 25 21:48:44 2012 UTC

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Comparing OpenCL/OpenCL.pm (file contents):
Revision 1.47 by root, Sat Apr 21 19:48:58 2012 UTC vs.
Revision 1.60 by root, Wed Apr 25 21:48:44 2012 UTC