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

Comparing OpenCL/OpenCL.pm (file contents):
Revision 1.46 by root, Sat Apr 21 19:17:09 2012 UTC vs.
Revision 1.56 by root, Tue Apr 24 23:53:12 2012 UTC

…		…
157	$id = get_global_id (0);	157	$id = get_global_id (0);
158	output [id] = input [id] * input [id];	158	output [id] = input [id] * input [id];
159	}	159	}
160	';	160	';
161		161
162	my $prog = $ctx->program_with_source ($src);	162	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");	163	my $kernel = $prog->kernel ("squareit");
169		164
170	=head2 Create some input and output float buffers, then call the	165	=head2 Create some input and output float buffers, then call the
171	'squareit' kernel on them.	166	'squareit' kernel on them.
172		167
…		…
267		262
268	float3 colour = (float3)(z.x, z.y, z.x * z.y);	263	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.));	264	write_imagef (img, (int2)(get_global_id (0), get_global_id (1)), (float4)(colour * p.x * p.x, 1.));
270	}	265	}
271	EOF	266	EOF
		267
272	my $prog = $ctx->program_with_source ($src);	268	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");	269	my $kernel = $prog->kernel ("juliatunnel");
277		270
278	# program compiled, kernel ready, now draw and loop	271	# program compiled, kernel ready, now draw and loop
279		272
280	for (my $time; ; ++$time) {	273	for (my $time; ; ++$time) {
…		…
383		376
384	For this to work, the OpenGL library must be loaded, a GLX context must	377	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	378	have been created and be made current, and C<dlsym> must be available and
386	capable of finding the function via C<RTLD_DEFAULT>.	379	capable of finding the function via C<RTLD_DEFAULT>.
387		380
		381	=head2 EVENT SYSTEM
		382
		383	OpenCL can generate a number of (potentially) asynchronous events, for
		384	example, after compiling a program, to signal a context-related error or,
		385	perhaps most important, to signal completion of queued jobs (by setting
		386	callbacks on OpenCL::Event objects).
		387
		388	To facilitate this, this module maintains an event queue - each
		389	time an asynchronous event happens, it is queued, and perl will be
		390	interrupted. This is implemented via the L<Async::Interrupt> module. In
		391	addition, this module has L<AnyEvent> support, so it can seamlessly
		392	integrate itself into many event loops.
		393
		394	Since this module is a bit hard to understand, here are some case examples:
		395
		396	=head3 Don't use callbacks.
		397
		398	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
		400	about all this.
		401
		402	You can achieve a great deal by explicitly waiting for events, or using
		403	barriers and flush calls. In many programs, there is no need at all to
		404	tinker with asynchronous events.
		405
		406	=head3 Use AnyEvent
		407
		408	This module automatically registers a watcher that invokes all outstanding
		409	event callbacks when AnyEvent is initialised (and block asynchronous
		410	interruptions). Using this mode of operations is the safest and most
		411	recommended one.
		412
		413	To use this, simply use AnyEvent and this module normally, make sure you
		414	have an event loop running:
		415
		416	use Gtk2 -init;
		417	use AnyEvent;
		418
		419	# initialise AnyEvent, by creating a watcher, or:
		420	AnyEvent::detect;
		421
		422	my $e = $queue->enqueue_marker;
		423	$e->cb (sub {
		424	warn "opencl is finished\n";
		425	})
		426
		427	main Gtk2;
		428
		429	Note that this module will not initialise AnyEvent for you. Before
		430	AnyEvent is initialised, the module will asynchronously interrupt perl
		431	instead. To avoid any surprises, it's best to explicitly initialise
		432	AnyEvent.
		433
		434	You can temporarily enable asynchronous interruptions (see next paragraph)
		435	by calling C<$OpenCL::INTERRUPT->unblock> and disable them again by
		436	calling C<$OpenCL::INTERRUPT->block>.
		437
		438	=head3 Let yourself be interrupted at any time
		439
		440	This mode is the default unless AnyEvent is loaded and initialised. In
		441	this mode, OpenCL asynchronously interrupts a running perl program. The
		442	emphasis is on both I<asynchronously> and I<running> here.
		443
		444	Asynchronously means that perl might execute your callbacks at any
		445	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
		447	callback:
		448
		449	my $e = $queue->enqueue_marker;
		450	my $flag;
		451	$e->cb (sub { $flag = 1 });
		452	1 until $flag;
		453	# $flag is now 1
		454
		455	The reason why you shouldn't blindly copy the above code is that
		456	busy waiting is a really really bad thing, and really really bad for
		457	performance.
		458
		459	While at first this asynchronous business might look exciting, it can be
		460	really hard, because you need to be prepared for the callback code to be
		461	executed at any time, which limits the amount of things the callback code
		462	can do safely.
		463
		464	This can be mitigated somewhat by using C<<
		465	$OpenCL::INTERRUPT->scope_block >> (see the L<Async::Interrupt>
		466	documentation for details).
		467
		468	The other problem is that your program must be actively I<running> to be
		469	interrupted. When you calculate stuff, your program is running. When you
		470	hang in some C functions or other block execution (by calling C<sleep>,
		471	C<select>, running an event loop and so on), your program is waiting, not
		472	running.
		473
		474	One way around that would be to attach a read watcher to your event loop,
		475	listening for events on C<< $OpenCL::INTERRUPT->pipe_fileno >>, using a
		476	dummy callback (C<sub { }>) to temporarily execute some perl code.
		477
		478	That is then awfully close to using the built-in AnyEvent support above,
		479	though, so consider that one instead.
		480
		481	=head3 Be creative
		482
		483	OpenCL exports the L<Async::Interrupt> object it uses in the global
		484	variable C<$OpenCL::INTERRUPT>. You can configure it in any way you like.
		485
		486	So if you want to feel like a real pro, err, wait, if you feel no risk
		487	menas no fun, you can experiment by implementing your own mode of
		488	operations.
		489
		490	=cut
		491
		492	package OpenCL;
		493
		494	use common::sense;
		495	use Async::Interrupt ();
		496
		497	our $POLL_FUNC; # set by XS
		498
		499	BEGIN {
		500	our $VERSION = '0.97';
		501
		502	require XSLoader;
		503	XSLoader::load (__PACKAGE__, $VERSION);
		504
		505	@OpenCL::Platform::ISA =
		506	@OpenCL::Device::ISA =
		507	@OpenCL::Context::ISA =
		508	@OpenCL::Queue::ISA =
		509	@OpenCL::Memory::ISA =
		510	@OpenCL::Sampler::ISA =
		511	@OpenCL::Program::ISA =
		512	@OpenCL::Kernel::ISA =
		513	@OpenCL::Event::ISA = OpenCL::Object::;
		514
		515	@OpenCL::Buffer::ISA =
		516	@OpenCL::Image::ISA = OpenCL::Memory::;
		517
		518	@OpenCL::BufferObj::ISA = OpenCL::Buffer::;
		519
		520	@OpenCL::Image2D::ISA =
		521	@OpenCL::Image3D::ISA =
		522	@OpenCL::Image2DArray::ISA =
		523	@OpenCL::Image1D::ISA =
		524	@OpenCL::Image1DArray::ISA =
		525	@OpenCL::Image1DBuffer::ISA = OpenCL::Image::;
		526
		527	@OpenCL::UserEvent::ISA = OpenCL::Event::;
		528	}
		529
388	=head2 THE OpenCL PACKAGE	530	=head2 THE OpenCL PACKAGE
389		531
390	=over 4	532	=over 4
391		533
392	=item $int = OpenCL::errno	534	=item $int = OpenCL::errno
…		…
410		552
411	Returns all available OpenCL::Platform objects.	553	Returns all available OpenCL::Platform objects.
412		554
413	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetPlatformIDs.html>	555	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetPlatformIDs.html>
414		556
415	=item $ctx = OpenCL::context_from_type $properties, $type = OpenCL::DEVICE_TYPE_DEFAULT, $notify = undef	557	=item $ctx = OpenCL::context_from_type $properties, $type = OpenCL::DEVICE_TYPE_DEFAULT, $callback->($err, $pvt) = $print_stderr
416		558
417	Tries to create a context from a default device and platform - never worked for me.	559	Tries to create a context from a default device and platform type - never worked for me.
418		560
419	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateContextFromType.html>	561	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateContextFromType.html>
420		562
		563	=item $ctx = OpenCL::context $properties, \@devices, $callback->($err, $pvt) = $print_stderr)
		564
		565	Create a new OpenCL::Context object using the given device object(s). This
		566	function isn't implemented yet, use C<< $platform->context >> instead.
		567
		568	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateContext.html>
		569
421	=item OpenCL::wait_for_events $wait_events...	570	=item OpenCL::wait_for_events $wait_events...
422		571
423	Waits for all events to complete.	572	Waits for all events to complete.
424		573
425	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clWaitForEvents.html>	574	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clWaitForEvents.html>
426		575
		576	=item OpenCL::poll
		577
		578	Checks if there are any outstanding events (see L<EVENT SYSTEM>) and
		579	invokes their callbacks.
		580
		581	=item $OpenCL::INTERRUPT
		582
		583	The L<Async::Interrupt> object used to signal asynchronous events (see
		584	L<EVENT SYSTEM>).
		585
		586	=cut
		587
		588	our $INTERRUPT = new Async::Interrupt c_cb => [$POLL_FUNC, 0];
		589
		590	&_eq_initialise ($INTERRUPT->signal_func);
		591
		592	=item $OpenCL::WATCHER
		593
		594	The L<AnyEvent> watcher object used to watch for asynchronous events (see
		595	L<EVENT SYSTEM>). This variable is C<undef> until L<AnyEvent> has been
		596	loaded I<and> initialised (e.g. by calling C<AnyEvent::detect>).
		597
		598	=cut
		599
		600	our $WATCHER;
		601
		602	sub _init_anyevent {
		603	$INTERRUPT->block;
		604	$WATCHER = AE::io ($INTERRUPT->pipe_fileno, 0, sub { $INTERRUPT->handle });
		605	}
		606
		607	if (defined $AnyEvent::MODEL) {
		608	_init_anyevent;
		609	} else {
		610	push @AnyEvent::post_detect, \&_init_anyevent;
		611	}
		612
427	=back	613	=back
428		614
		615	=head2 THE OpenCL::Object CLASS
		616
		617	This is the base class for all objects in the OpenCL module. The only
		618	method it implements is the C<id> method, which is only useful if you want
		619	to interface to OpenCL on the C level.
		620
		621	=over 4
		622
		623	=item $iv = $obj->id
		624
		625	OpenCL objects are represented by pointers or integers on the C level. If
		626	you want to interface to an OpenCL object directly on the C level, then
		627	you need this value, which is returned by this method. You should use an
		628	C<IV> type in your code and cast that to the correct type.
		629
		630	=cut
		631
		632	sub OpenCL::Object::id {
		633	ref $_[0] eq "SCALAR"
		634	? ${ $_[0] }
		635	: $_[0][0]
		636	}
		637
		638	=back
		639
429	=head2 THE OpenCL::Platform CLASS	640	=head2 THE OpenCL::Platform CLASS
430		641
431	=over 4	642	=over 4
432		643
433	=item @devices = $platform->devices ($type = OpenCL::DEVICE_TYPE_ALL)	644	=item @devices = $platform->devices ($type = OpenCL::DEVICE_TYPE_ALL)
434		645
435	Returns a list of matching OpenCL::Device objects.	646	Returns a list of matching OpenCL::Device objects.
436		647
437	=item $ctx = $platform->context_from_type ($properties, $type = OpenCL::DEVICE_TYPE_DEFAULT, $notify = undef)	648	=item $ctx = $platform->context_from_type ($properties, $type = OpenCL::DEVICE_TYPE_DEFAULT, $callback->($err, $pvt) = $print_stderr)
438		649
439	Tries to create a context. Never worked for me, and you need devices explicitly anyway.	650	Tries to create a context. Never worked for me, and you need devices explicitly anyway.
440		651
441	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateContextFromType.html>	652	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateContextFromType.html>
442		653
443	=item $ctx = $platform->context ($properties = undef, @$devices, $notify = undef)	654	=item $ctx = $platform->context ($properties, \@devices, $callback->($err, $pvt) = $print_stderr)
444		655
445	Create a new OpenCL::Context object using the given device object(s)- a	656	Create a new OpenCL::Context object using the given device object(s)- a
446	CL_CONTEXT_PLATFORM property is supplied automatically.	657	CL_CONTEXT_PLATFORM property is supplied automatically.
447		658
448	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateContext.html>	659	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	667	It's best to avoid this method and use one of the following convenience
457	wrappers.	668	wrappers.
458		669
459	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetPlatformInfo.html>	670	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetPlatformInfo.html>
460		671
		672	=item $platform->unload_compiler
		673
		674	Attempts to unload the compiler for this platform, for endless
		675	profit. Does nothing on OpenCL 1.1.
		676
		677	L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clUnloadPlatformCompiler.html>
		678
461	=for gengetinfo begin platform	679	=for gengetinfo begin platform
462		680
463	=item $string = $platform->profile	681	=item $string = $platform->profile
464		682
465	Calls C<clGetPlatformInfo> with C<CL_PLATFORM_PROFILE> and returns the result.	683	Calls C<clGetPlatformInfo> with C<CL_PLATFORM_PROFILE> and returns the result.
…		…
752		970
753	Calls C<clGetDeviceInfo> with C<CL_DEVICE_AFFINITY_DOMAINS_EXT> and returns the result.	971	Calls C<clGetDeviceInfo> with C<CL_DEVICE_AFFINITY_DOMAINS_EXT> and returns the result.
754		972
755	=item $uint = $device->reference_count_ext	973	=item $uint = $device->reference_count_ext
756		974
757	Calls C<clGetDeviceInfo> with C<CL_DEVICE_REFERENCE_COUNT_EXT > and returns the result.	975	Calls C<clGetDeviceInfo> with C<CL_DEVICE_REFERENCE_COUNT_EXT> and returns the result.
758		976
759	=item @device_partition_property_exts = $device->partition_style_ext	977	=item @device_partition_property_exts = $device->partition_style_ext
760		978
761	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PARTITION_STYLE_EXT> and returns the result.	979	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PARTITION_STYLE_EXT> and returns the result.
762		980
…		…
765	=back	983	=back
766		984
767	=head2 THE OpenCL::Context CLASS	985	=head2 THE OpenCL::Context CLASS
768		986
769	=over 4	987	=over 4
		988
		989	=item $prog = $ctx->build_program ($program, $options = "")
		990
		991	This convenience function tries to build the program on all devices in
		992	the context. If the build fails, then the function will C<croak> with the
		993	build log. Otherwise ti returns the program object.
		994
		995	The C<$program> can either be a C<OpenCL::Program> object or a string
		996	containing the program. In the latter case, a program objetc will be
		997	created automatically.
		998
		999	=cut
		1000
		1001	sub OpenCL::Context::build_program {
		1002	my ($self, $prog, $options) = @_;
		1003
		1004	require Carp;
		1005
		1006	$prog = $self->program_with_source ($prog)
		1007	unless ref $prog;
		1008
		1009	# we build separately per device so we instantly know which one failed
		1010	for my $dev ($self->devices) {
		1011	eval { $prog->build ([$dev], $options); 1 }
		1012	or Carp::croak ("Building OpenCL program for device '" . $dev->name . "' failed:\n"
		1013	. $prog->build_log ($dev));
		1014	}
		1015
		1016	$prog
		1017	}
770		1018
771	=item $queue = $ctx->queue ($device, $properties)	1019	=item $queue = $ctx->queue ($device, $properties)
772		1020
773	Create a new OpenCL::Queue object from the context and the given device.	1021	Create a new OpenCL::Queue object from the context and the given device.
774		1022
…		…
794	=item $buf = $ctx->buffer_sv ($flags, $data)	1042	=item $buf = $ctx->buffer_sv ($flags, $data)
795		1043
796	Creates a new OpenCL::Buffer (actually OpenCL::BufferObj) object and	1044	Creates a new OpenCL::Buffer (actually OpenCL::BufferObj) object and
797	initialise it with the given data values.	1045	initialise it with the given data values.
798		1046
		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)
		1048
		1049	Creates a new OpenCL::Image object and optionally initialises it with
		1050	the given data values.
		1051
		1052	L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clCreateImage.html>
		1053
799	=item $img = $ctx->image2d ($flags, $channel_order, $channel_type, $width, $height, $row_pitch = 0, $data = undef)	1054	=item $img = $ctx->image2d ($flags, $channel_order, $channel_type, $width, $height, $row_pitch = 0, $data = undef)
800		1055
801	Creates a new OpenCL::Image2D object and optionally initialises it with	1056	Creates a new OpenCL::Image2D object and optionally initialises it with
802	the given data values.	1057	the given data values.
803		1058
…		…
815	Creates a new OpenCL::Buffer (actually OpenCL::BufferObj) object that refers to the given	1070	Creates a new OpenCL::Buffer (actually OpenCL::BufferObj) object that refers to the given
816	OpenGL buffer object.	1071	OpenGL buffer object.
817		1072
818	http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateFromGLBuffer.html	1073	http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateFromGLBuffer.html
819		1074
		1075	=item $img = $ctx->gl_texture ($flags, $target, $miplevel, $texture)
		1076
		1077	Creates a new OpenCL::Image object that refers to the given OpenGL
		1078	texture object or buffer.
		1079
		1080	http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clCreateFromGLTexture.html
		1081
820	=item $ctx->gl_texture2d ($flags, $target, $miplevel, $texture)	1082	=item $img = $ctx->gl_texture2d ($flags, $target, $miplevel, $texture)
821		1083
822	Creates a new OpenCL::Image2D object that refers to the given OpenGL	1084	Creates a new OpenCL::Image2D object that refers to the given OpenGL
823	2D texture object.	1085	2D texture object.
824		1086
825	http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateFromGLTexture2D.html	1087	http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateFromGLTexture2D.html
826		1088
827	=item $ctx->gl_texture3d ($flags, $target, $miplevel, $texture)	1089	=item $img = $ctx->gl_texture3d ($flags, $target, $miplevel, $texture)
828		1090
829	Creates a new OpenCL::Image3D object that refers to the given OpenGL	1091	Creates a new OpenCL::Image3D object that refers to the given OpenGL
830	3D texture object.	1092	3D texture object.
831		1093
832	http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateFromGLTexture3D.html	1094	http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateFromGLTexture3D.html
…		…
959		1221
960	Yeah.	1222	Yeah.
961		1223
962	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyBufferToImage.html>.	1224	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyBufferToImage.html>.
963		1225
		1226	=item $ev = $queue->enqueue_fill_buffer ($mem, $pattern, $offset, $size, ...)
		1227
		1228	Fills the given buffer object with repeated applications of C<$pattern>,
		1229	starting at C<$offset> for C<$size> octets.
		1230
		1231	L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clEnqueueFillBuffer.html>
		1232
		1233	=item $ev = $queue->enqueue_fill_image ($img, $r, $g, $b, $a, $x, $y, $z, $width, $height, $depth, ...)
		1234
		1235	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>,
		1237	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.
		1239
		1240	L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clEnqueueFillImage.html>
		1241
964	=item $ev = $queue->enqueue_task ($kernel, $wait_events...)	1242	=item $ev = $queue->enqueue_task ($kernel, $wait_events...)
965		1243
966	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueTask.html>	1244	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueTask.html>
967		1245
968	=item $ev = $queue->enqueue_nd_range_kernel ($kernel, @$global_work_offset, @$global_work_size, @$local_work_size, $wait_events...)	1246	=item $ev = $queue->enqueue_nd_range_kernel ($kernel, @$global_work_offset, @$global_work_size, @$local_work_size, $wait_events...)
…		…
1130		1408
1131	=back	1409	=back
1132		1410
1133	=head2 THE OpenCL::Image CLASS	1411	=head2 THE OpenCL::Image CLASS
1134		1412
1135	This is the superclass of all image objects - OpenCL::Image2D and OpenCL::Image3D.	1413	This is the superclass of all image objects - OpenCL::Image1D,
		1414	OpenCL::Image1DArray, OpenCL::Image1DBuffer, OpenCL::Image2D,
		1415	OpenCL::Image2DArray and OpenCL::Image3D.
1136		1416
1137	=over 4	1417	=over 4
1138		1418
1139	=item $packed_value = $ev->image_info ($name)	1419	=item $packed_value = $image->image_info ($name)
1140		1420
1141	See C<< $platform->info >> for details.	1421	See C<< $platform->info >> for details.
1142		1422
1143	The reason this method is not called C<info> is that there already is an	1423	The reason this method is not called C<info> is that there already is an
1144	C<< ->info >> method inherited from C<OpenCL::Memory>.	1424	C<< ->info >> method inherited from C<OpenCL::Memory>.
1145		1425
1146	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetImageInfo.html>	1426	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetImageInfo.html>
1147		1427
		1428	=item ($channel_order, $channel_data_type) = $image->format
		1429
		1430	Returns the channel order and type used to create the image by calling
		1431	C<clGetImageInfo> with C<CL_IMAGE_FORMAT>.
		1432
1148	=for gengetinfo begin image	1433	=for gengetinfo begin image
1149		1434
1150	=item $int = $image->element_size	1435	=item $int = $image->element_size
1151		1436
1152	Calls C<clGetImageInfo> with C<CL_IMAGE_ELEMENT_SIZE> and returns the result.	1437	Calls C<clGetImageInfo> with C<CL_IMAGE_ELEMENT_SIZE> and returns the result.
…		…
1225		1510
1226	=head2 THE OpenCL::Program CLASS	1511	=head2 THE OpenCL::Program CLASS
1227		1512
1228	=over 4	1513	=over 4
1229		1514
1230	=item $program->build ($device, $options = "")	1515	=item $program->build (\@devices = undef, $options = "", $cb->($program) = undef)
1231		1516
1232	Tries to build the program with the givne options.	1517	Tries to build the program with the given options. See also the
		1518	C<$ctx->build> convenience function.
		1519
		1520	If a callback is specified, then it will be called when compilation is
		1521	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
		1523	want to make sure the build is done in the background.
		1524
		1525	Note that some OpenCL implementations atc up badly, and don't call the
		1526	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
		1528	not so. So best make sure you don't pass in invalid values.
1233		1529
1234	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clBuildProgram.html>	1530	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clBuildProgram.html>
		1531
		1532	=item $program->build_async (\@devices = undef, $options = "", $cb->($program) = undef)
		1533
		1534	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).
1235		1536
1236	=item $packed_value = $program->build_info ($device, $name)	1537	=item $packed_value = $program->build_info ($device, $name)
1237		1538
1238	Similar to C<< $platform->info >>, but returns build info for a previous	1539	Similar to C<< $platform->info >>, but returns build info for a previous
1239	build attempt for the given device.	1540	build attempt for the given device.
…		…
1244		1545
1245	Creates an OpenCL::Kernel object out of the named C<__kernel> function in	1546	Creates an OpenCL::Kernel object out of the named C<__kernel> function in
1246	the program.	1547	the program.
1247		1548
1248	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateKernel.html>	1549	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateKernel.html>
		1550
		1551	=item @kernels = $program->kernels_in_program
		1552
		1553	Returns all kernels successfully compiled for all devices in program.
		1554
		1555	http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateKernelsInProgram.html
1249		1556
1250	=for gengetinfo begin program_build	1557	=for gengetinfo begin program_build
1251		1558
1252	=item $build_status = $program->build_status ($device)	1559	=item $build_status = $program->build_status ($device)
1253		1560
…		…
1389	float and double as floating point values, memory/buffer/image2d/image3d	1696	float and double as floating point values, memory/buffer/image2d/image3d
1390	must be an object of that type or C<undef>, local-memory arguments are	1697	must be an object of that type or C<undef>, local-memory arguments are
1391	set by specifying the size, and sampler and event must be objects of that	1698	set by specifying the size, and sampler and event must be objects of that
1392	type.	1699	type.
1393		1700
		1701	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,
		1703	and call the kernel, you will run into undefined behaviour.
		1704
1394	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clSetKernelArg.html>	1705	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clSetKernelArg.html>
1395		1706
1396	=back	1707	=back
1397		1708
1398	=head2 THE OpenCL::Event CLASS	1709	=head2 THE OpenCL::Event CLASS
…		…
1406		1717
1407	Waits for the event to complete.	1718	Waits for the event to complete.
1408		1719
1409	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clWaitForEvents.html>	1720	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clWaitForEvents.html>
1410		1721
		1722	=item $ev->cb ($exec_callback_type, $callback->($event, $event_command_exec_status))
		1723
		1724	Adds a callback to the callback stack for the given event type. There is
		1725	no way to remove a callback again.
		1726
		1727	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clSetEventCallback.html>
		1728
1411	=item $packed_value = $ev->info ($name)	1729	=item $packed_value = $ev->info ($name)
1412		1730
1413	See C<< $platform->info >> for details.	1731	See C<< $platform->info >> for details.
1414		1732
1415	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetEventInfo.html>	1733	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetEventInfo.html>
…		…
1475		1793
1476	=over 4	1794	=over 4
1477		1795
1478	=item $ev->set_status ($execution_status)	1796	=item $ev->set_status ($execution_status)
1479		1797
		1798	Sets the execution status of the user event. Can only be called once,
		1799	either with OpenCL::COMPLETE or a negative number as status.
		1800
1480	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clSetUserEventStatus.html>	1801	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clSetUserEventStatus.html>
1481		1802
1482	=back	1803	=back
1483		1804
1484	=cut	1805	=cut
1485
1486	package OpenCL;
1487
1488	use common::sense;
1489
1490	BEGIN {
1491	our $VERSION = '0.96';
1492
1493	require XSLoader;
1494	XSLoader::load (__PACKAGE__, $VERSION);
1495
1496	@OpenCL::Buffer::ISA =
1497	@OpenCL::Image::ISA = OpenCL::Memory::;
1498
1499	@OpenCL::BufferObj::ISA = OpenCL::Buffer::;
1500
1501	@OpenCL::Image2D::ISA =
1502	@OpenCL::Image3D::ISA = OpenCL::Image::;
1503
1504	@OpenCL::UserEvent::ISA = OpenCL::Event::;
1505	}
1506		1806
1507	1;	1807	1;
1508		1808
1509	=head1 AUTHOR	1809	=head1 AUTHOR
1510		1810

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Comparing OpenCL/OpenCL.pm (file contents): Revision 1.46 by root, Sat Apr 21 19:17:09 2012 UTC vs. Revision 1.56 by root, Tue Apr 24 23:53:12 2012 UTC

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Comparing OpenCL/OpenCL.pm (file contents):
Revision 1.46 by root, Sat Apr 21 19:17:09 2012 UTC vs.
Revision 1.56 by root, Tue Apr 24 23:53:12 2012 UTC