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

Comparing OpenCL/OpenCL.pm (file contents):
Revision 1.33 by root, Thu Apr 19 12:55:30 2012 UTC vs.
Revision 1.58 by root, Wed Apr 25 20:29:03 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:
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
…		…
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); 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
…		…
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 = $queue->enqueue_read_buffer ($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;
		213
		214	=head2 Use the OpenGL module to share a texture between OpenCL and OpenGL and draw some julia
		215	set tunnel effect.
		216
		217	This is quite a long example to get you going.
		218
		219	use OpenGL ":all";
		220	use OpenCL;
		221
		222	# open a window and create a gl texture
		223	OpenGL::glpOpenWindow width => 256, height => 256;
		224	my $texid = glGenTextures_p 1;
		225	glBindTexture GL_TEXTURE_2D, $texid;
		226	glTexImage2D_c GL_TEXTURE_2D, 0, GL_RGBA8, 256, 256, 0, GL_RGBA, GL_UNSIGNED_BYTE, 0;
		227
		228	# find and use the first opencl device that let's us get a shared opengl context
		229	my $platform;
		230	my $dev;
		231	my $ctx;
		232
		233	for (OpenCL::platforms) {
		234	$platform = $_;
		235	for ($platform->devices) {
		236	$dev = $_;
		237	$ctx = $platform->context ([OpenCL::GLX_DISPLAY_KHR, undef, OpenCL::GL_CONTEXT_KHR, undef], [$dev])
		238	and last;
		239	}
		240	}
		241
		242	$ctx
		243	or die "cannot find suitable OpenCL device\n";
		244
		245	my $queue = $ctx->queue ($dev);
		246
		247	# now attach an opencl image2d object to the opengl texture
		248	my $tex = $ctx->gl_texture2d (OpenCL::MEM_WRITE_ONLY, GL_TEXTURE_2D, 0, $texid);
		249
		250	# now the boring opencl code
		251	my $src = <<EOF;
		252	kernel void
		253	juliatunnel (write_only image2d_t img, float time)
		254	{
		255	float2 p = (float2)(get_global_id (0), get_global_id (1)) / 256.f * 2.f - 1.f;
		256
		257	float2 m = (float2)(1.f, p.y) / fabs (p.x);
		258	m.x = fabs (fmod (m.x + time * 0.05f, 4.f)) - 2.f;
		259
		260	float2 z = m;
		261	float2 c = (float2)(sin (time * 0.05005), cos (time * 0.06001));
		262
		263	for (int i = 0; i < 25 && dot (z, z) < 4.f; ++i)
		264	z = (float2)(z.x * z.x - z.y * z.y, 2.f * z.x * z.y) + c;
		265
		266	float3 colour = (float3)(z.x, z.y, z.x * z.y);
		267	write_imagef (img, (int2)(get_global_id (0), get_global_id (1)), (float4)(colour * p.x * p.x, 1.));
		268	}
		269	EOF
		270
		271	my $prog = $ctx->build_program ($src);
		272	my $kernel = $prog->kernel ("juliatunnel");
		273
		274	# program compiled, kernel ready, now draw and loop
		275
		276	for (my $time; ; ++$time) {
		277	# acquire objects from opengl
		278	$queue->enqueue_acquire_gl_objects ([$tex]);
		279
		280	# configure and run our kernel
		281	$kernel->set_image2d (0, $tex);
		282	$kernel->set_float (1, $time);
		283	$queue->enqueue_nd_range_kernel ($kernel, undef, [256, 256], undef);
		284
		285	# release objects to opengl again
		286	$queue->enqueue_release_gl_objects ([$tex]);
		287
		288	# wait
		289	$queue->finish;
		290
		291	# now draw the texture, the defaults should be all right
		292	glTexParameterf GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST;
		293
		294	glEnable GL_TEXTURE_2D;
		295	glBegin GL_QUADS;
		296	glTexCoord2f 0, 1; glVertex3i -1, -1, -1;
		297	glTexCoord2f 0, 0; glVertex3i 1, -1, -1;
		298	glTexCoord2f 1, 0; glVertex3i 1, 1, -1;
		299	glTexCoord2f 1, 1; glVertex3i -1, 1, -1;
		300	glEnd;
		301
		302	glXSwapBuffers;
		303
		304	select undef, undef, undef, 1/60;
		305	}
215		306
216	=head1 DOCUMENTATION	307	=head1 DOCUMENTATION
217		308
218	=head2 BASIC CONVENTIONS	309	=head2 BASIC CONVENTIONS
219		310
…		…
241	=item * Structures are often specified by flattening out their components	332	=item * Structures are often specified by flattening out their components
242	as with short vectors, and returned as arrayrefs.	333	as with short vectors, and returned as arrayrefs.
243		334
244	=item * When enqueuing commands, the wait list is specified by adding	335	=item * When enqueuing commands, the wait list is specified by adding
245	extra arguments to the function - anywhere a C<$wait_events...> argument	336	extra arguments to the function - anywhere a C<$wait_events...> argument
246	is documented this can be any number of event objects.	337	is documented this can be any number of event objects. As an extsnion
		338	implemented by this module, C<undef> values will be ignored in the event
		339	list.
247		340
248	=item * When enqueuing commands, if the enqueue method is called in void	341	=item * When enqueuing commands, if the enqueue method is called in void
249	context, no event is created. In all other contexts an event is returned	342	context, no event is created. In all other contexts an event is returned
250	by the method.	343	by the method.
251		344
…		…
271	ulong IV - Q	364	ulong IV - Q
272	float NV float f	365	float NV float f
273	half IV ushort S	366	half IV ushort S
274	double NV double d	367	double NV double d
275		368
		369	=head2 GLX SUPPORT
		370
		371	Due to the sad state that OpenGL support is in in Perl (mostly the OpenGL
		372	module, which has little to no documentation and has little to no support
		373	for glX), this module, as a special extension, treats context creation
		374	properties C<OpenCL::GLX_DISPLAY_KHR> and C<OpenCL::GL_CONTEXT_KHR>
		375	specially: If either or both of these are C<undef>, then the OpenCL
		376	module tries to dynamically resolve C<glXGetCurrentDisplay> and
		377	C<glXGetCurrentContext>, call these functions and use their return values
		378	instead.
		379
		380	For this to work, the OpenGL library must be loaded, a GLX context must
		381	have been created and be made current, and C<dlsym> must be available and
		382	capable of finding the function via C<RTLD_DEFAULT>.
		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->enqueue_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->enqueue_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
276	=head2 THE OpenCL PACKAGE	533	=head2 THE OpenCL PACKAGE
277		534
278	=over 4	535	=over 4
279		536
280	=item $int = OpenCL::errno	537	=item $int = OpenCL::errno
…		…
298		555
299	Returns all available OpenCL::Platform objects.	556	Returns all available OpenCL::Platform objects.
300		557
301	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>
302		559
303	=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
304		561
305	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.
306		563
307	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>
308		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
309	=item OpenCL::wait_for_events $wait_events...	573	=item OpenCL::wait_for_events $wait_events...
310		574
311	Waits for all events to complete.	575	Waits for all events to complete.
312		576
313	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>
314		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
315	=back	616	=back
316		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
317	=head2 THE OpenCL::Platform CLASS	643	=head2 THE OpenCL::Platform CLASS
318		644
319	=over 4	645	=over 4
320		646
321	=item @devices = $platform->devices ($type = OpenCL::DEVICE_TYPE_ALL)	647	=item @devices = $platform->devices ($type = OpenCL::DEVICE_TYPE_ALL)
322		648
323	Returns a list of matching OpenCL::Device objects.	649	Returns a list of matching OpenCL::Device objects.
324		650
325	=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)
326		652
327	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.
328		654
329	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>
330		656
331	=item $ctx = $platform->context ($properties = undef, @$devices, $notify = undef)	657	=item $ctx = $platform->context ($properties, \@devices, $callback->($err, $pvt) = $print_stderr)
332		658
333	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
334	CL_CONTEXT_PLATFORM property is supplied automatically.	660	CL_CONTEXT_PLATFORM property is supplied automatically.
335		661
336	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>
…		…
344	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
345	wrappers.	671	wrappers.
346		672
347	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>
348		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
349	=for gengetinfo begin platform	682	=for gengetinfo begin platform
350		683
351	=item $string = $platform->profile	684	=item $string = $platform->profile
352		685
353	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.
…		…
638		971
639	=item @device_partition_property_exts = $device->affinity_domains_ext	972	=item @device_partition_property_exts = $device->affinity_domains_ext
640		973
641	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.
642		975
643	=item $uint = $device->reference_count_ext	976	=item $uint = $device->reference_count_ext
644		977
645	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.
646		979
647	=item @device_partition_property_exts = $device->partition_style_ext	980	=item @device_partition_property_exts = $device->partition_style_ext
648		981
649	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.
650		983
…		…
654		987
655	=head2 THE OpenCL::Context CLASS	988	=head2 THE OpenCL::Context CLASS
656		989
657	=over 4	990	=over 4
658		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	}
		1021
659	=item $queue = $ctx->queue ($device, $properties)	1022	=item $queue = $ctx->queue ($device, $properties)
660		1023
661	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.
662		1025
663	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateCommandQueue.html>	1026	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateCommandQueue.html>
		1027
		1028	Example: create an out-of-order queue.
		1029
		1030	$queue = $ctx->queue ($device, OpenCL::QUEUE_OUT_OF_ORDER_EXEC_MODE_ENABLE);
664		1031
665	=item $ev = $ctx->user_event	1032	=item $ev = $ctx->user_event
666		1033
667	Creates a new OpenCL::UserEvent object.	1034	Creates a new OpenCL::UserEvent object.
668		1035
…		…
678	=item $buf = $ctx->buffer_sv ($flags, $data)	1045	=item $buf = $ctx->buffer_sv ($flags, $data)
679		1046
680	Creates a new OpenCL::Buffer (actually OpenCL::BufferObj) object and	1047	Creates a new OpenCL::Buffer (actually OpenCL::BufferObj) object and
681	initialise it with the given data values.	1048	initialise it with the given data values.
682		1049
		1050	=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)
		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
683	=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)
684		1058
685	Creates a new OpenCL::Image2D object and optionally initialises it with	1059	Creates a new OpenCL::Image2D object and optionally initialises it with
686	the given data values.	1060	the given data values.
687		1061
…		…
699	Creates a new OpenCL::Buffer (actually OpenCL::BufferObj) object that refers to the given	1073	Creates a new OpenCL::Buffer (actually OpenCL::BufferObj) object that refers to the given
700	OpenGL buffer object.	1074	OpenGL buffer object.
701		1075
702	http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateFromGLBuffer.html	1076	http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateFromGLBuffer.html
703		1077
		1078	=item $img = $ctx->gl_texture ($flags, $target, $miplevel, $texture)
		1079
		1080	Creates a new OpenCL::Image object that refers to the given OpenGL
		1081	texture object or buffer.
		1082
		1083	http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clCreateFromGLTexture.html
		1084
704	=item $ctx->gl_texture2d ($flags, $target, $miplevel, $texture)	1085	=item $img = $ctx->gl_texture2d ($flags, $target, $miplevel, $texture)
705		1086
706	Creates a new OpenCL::Image2D object that refers to the given OpenGL	1087	Creates a new OpenCL::Image2D object that refers to the given OpenGL
707	2D texture object.	1088	2D texture object.
708		1089
709	http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateFromGLTexture2D.html	1090	http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateFromGLTexture2D.html
710		1091
711	=item $ctx->gl_texture3d ($flags, $target, $miplevel, $texture)	1092	=item $img = $ctx->gl_texture3d ($flags, $target, $miplevel, $texture)
712		1093
713	Creates a new OpenCL::Image3D object that refers to the given OpenGL	1094	Creates a new OpenCL::Image3D object that refers to the given OpenGL
714	3D texture object.	1095	3D texture object.
715		1096
716	http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateFromGLTexture3D.html	1097	http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateFromGLTexture3D.html
…		…
779	for completion, unless the method is called in void context, in which case	1160	for completion, unless the method is called in void context, in which case
780	no event object is created.	1161	no event object is created.
781		1162
782	They also allow you to specify any number of other event objects that this	1163	They also allow you to specify any number of other event objects that this
783	request has to wait for before it starts executing, by simply passing the	1164	request has to wait for before it starts executing, by simply passing the
784	event objects as extra parameters to the enqueue methods.	1165	event objects as extra parameters to the enqueue methods. To simplify
		1166	program design, this module ignores any C<undef> values in the list of
		1167	events. This makes it possible to code operations such as this, without
		1168	having to put a valid event object into C<$event> first:
		1169
		1170	$event = $queue->enqueue_xxx (..., $event);
785		1171
786	Queues execute in-order by default, without any parallelism, so in most	1172	Queues execute in-order by default, without any parallelism, so in most
787	cases (i.e. you use only one queue) it's not necessary to wait for or	1173	cases (i.e. you use only one queue) it's not necessary to wait for or
788	create event objects.	1174	create event objects, althoguh an our of order queue is often a bit
		1175	faster.
789		1176
790	=over 4	1177	=over 4
791		1178
792	=item $ev = $queue->enqueue_read_buffer ($buffer, $blocking, $offset, $len, $data, $wait_events...)	1179	=item $ev = $queue->enqueue_read_buffer ($buffer, $blocking, $offset, $len, $data, $wait_events...)
793		1180
…		…
837		1224
838	Yeah.	1225	Yeah.
839		1226
840	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyBufferToImage.html>.	1227	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyBufferToImage.html>.
841		1228
		1229	=item $ev = $queue->enqueue_fill_buffer ($mem, $pattern, $offset, $size, ...)
		1230
		1231	Fills the given buffer object with repeated applications of C<$pattern>,
		1232	starting at C<$offset> for C<$size> octets.
		1233
		1234	L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clEnqueueFillBuffer.html>
		1235
		1236	=item $ev = $queue->enqueue_fill_image ($img, $r, $g, $b, $a, $x, $y, $z, $width, $height, $depth, ...)
		1237
		1238	Fills the given image area with the given rgba colour components. The
		1239	components are normally floating point values between C<0> and C<1>,
		1240	except when the image channel data type is a signe dor unsigned
		1241	unnormalised format, in which case the range is determined by the format.
		1242
		1243	L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clEnqueueFillImage.html>
		1244
842	=item $ev = $queue->enqueue_task ($kernel, $wait_events...)	1245	=item $ev = $queue->enqueue_task ($kernel, $wait_events...)
843		1246
844	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueTask.html>	1247	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueTask.html>
845		1248
846	=item $ev = $queue->enqueue_nd_range_kernel ($kernel, @$global_work_offset, @$global_work_size, @$local_work_size, $wait_events...)	1249	=item $ev = $queue->enqueue_nd_range_kernel ($kernel, \@global_work_offset, \@global_work_size, \@local_work_size, $wait_events...)
847		1250
848	Enqueues a kernel execution.	1251	Enqueues a kernel execution.
849		1252
850	@$global_work_size must be specified as a reference to an array of	1253	\@global_work_size must be specified as a reference to an array of
851	integers specifying the work sizes (element counts).	1254	integers specifying the work sizes (element counts).
852		1255
853	@$global_work_offset must be either C<undef> (in which case all offsets	1256	\@global_work_offset must be either C<undef> (in which case all offsets
854	are C<0>), or a reference to an array of work offsets, with the same number	1257	are C<0>), or a reference to an array of work offsets, with the same number
855	of elements as @$global_work_size.	1258	of elements as \@global_work_size.
856		1259
857	@$local_work_size must be either C<undef> (in which case the	1260	\@local_work_size must be either C<undef> (in which case the
858	implementation is supposed to choose good local work sizes), or a	1261	implementation is supposed to choose good local work sizes), or a
859	reference to an array of local work sizes, with the same number of	1262	reference to an array of local work sizes, with the same number of
860	elements as @$global_work_size.	1263	elements as \@global_work_size.
861		1264
862	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueNDRangeKernel.html>	1265	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueNDRangeKernel.html>
863		1266
864	=item $ev = $queue->enqueue_marker	1267	=item $ev = $queue->enqueue_acquire_gl_objects ([object, ...], $wait_events...)
865		1268
		1269	Enqueues a list (an array-ref of OpenCL::Memory objects) to be acquired
		1270	for subsequent OpenCL usage.
		1271
866	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueMarker.html>	1272	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueAcquireGLObjects.html>
		1273
		1274	=item $ev = $queue->enqueue_release_gl_objects ([object, ...], $wait_events...)
		1275
		1276	Enqueues a list (an array-ref of OpenCL::Memory objects) to be released
		1277	for subsequent OpenGL usage.
		1278
		1279	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReleaseGLObjects.html>
867		1280
868	=item $ev = $queue->enqueue_wait_for_events ($wait_events...)	1281	=item $ev = $queue->enqueue_wait_for_events ($wait_events...)
869		1282
870	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWaitForEvents.html>	1283	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWaitForEvents.html>
871		1284
872	=item $queue->enqueue_barrier	1285	=item $ev = $queue->enqueue_marker ($wait_events...)
873		1286
		1287	L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clEnqueueMarkerWithWaitList.html>
		1288
		1289	=item $ev = $queue->enqueue_barrier ($wait_events...)
		1290
874	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueBarrier.html>	1291	L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clEnqueueBarrierWithWaitList.html>
875		1292
876	=item $queue->flush	1293	=item $queue->flush
877		1294
878	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clFlush.html>	1295	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clFlush.html>
879		1296
…		…
959	=item $int = $mem->offset	1376	=item $int = $mem->offset
960		1377
961	Calls C<clGetMemObjectInfo> with C<CL_MEM_OFFSET> and returns the result.	1378	Calls C<clGetMemObjectInfo> with C<CL_MEM_OFFSET> and returns the result.
962		1379
963	=for gengetinfo end mem	1380	=for gengetinfo end mem
		1381
		1382	=item ($type, $name) = $mem->gl_object_info
		1383
		1384	Returns the OpenGL object type (e.g. OpenCL::GL_OBJECT_TEXTURE2D) and the
		1385	object "name" (e.g. the texture name) used to create this memory object.
		1386
		1387	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetGLObjectInfo.html>
964		1388
965	=back	1389	=back
966		1390
967	=head2 THE OpenCL::Buffer CLASS	1391	=head2 THE OpenCL::Buffer CLASS
968		1392
…		…
987		1411
988	=back	1412	=back
989		1413
990	=head2 THE OpenCL::Image CLASS	1414	=head2 THE OpenCL::Image CLASS
991		1415
992	This is the superclass of all image objects - OpenCL::Image2D and OpenCL::Image3D.	1416	This is the superclass of all image objects - OpenCL::Image1D,
		1417	OpenCL::Image1DArray, OpenCL::Image1DBuffer, OpenCL::Image2D,
		1418	OpenCL::Image2DArray and OpenCL::Image3D.
993		1419
994	=over 4	1420	=over 4
995		1421
996	=item $packed_value = $ev->image_info ($name)	1422	=item $packed_value = $image->image_info ($name)
997		1423
998	See C<< $platform->info >> for details.	1424	See C<< $platform->info >> for details.
999		1425
1000	The reason this method is not called C<info> is that there already is an	1426	The reason this method is not called C<info> is that there already is an
1001	C<< ->info >> method inherited from C<OpenCL::Memory>.	1427	C<< ->info >> method inherited from C<OpenCL::Memory>.
1002		1428
1003	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetImageInfo.html>	1429	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetImageInfo.html>
1004		1430
		1431	=item ($channel_order, $channel_data_type) = $image->format
		1432
		1433	Returns the channel order and type used to create the image by calling
		1434	C<clGetImageInfo> with C<CL_IMAGE_FORMAT>.
		1435
1005	=for gengetinfo begin image	1436	=for gengetinfo begin image
1006		1437
1007	=item $int = $image->element_size	1438	=item $int = $image->element_size
1008		1439
1009	Calls C<clGetImageInfo> with C<CL_IMAGE_ELEMENT_SIZE> and returns the result.	1440	Calls C<clGetImageInfo> with C<CL_IMAGE_ELEMENT_SIZE> and returns the result.
…		…
1028		1459
1029	Calls C<clGetImageInfo> with C<CL_IMAGE_DEPTH> and returns the result.	1460	Calls C<clGetImageInfo> with C<CL_IMAGE_DEPTH> and returns the result.
1030		1461
1031	=for gengetinfo end image	1462	=for gengetinfo end image
1032		1463
		1464	=for gengetinfo begin gl_texture
		1465
		1466	=item $GLenum = $gl_texture->target
		1467
		1468	Calls C<clGetGLTextureInfo> with C<CL_GL_TEXTURE_TARGET> and returns the result.
		1469
		1470	=item $GLint = $gl_texture->gl_mipmap_level
		1471
		1472	Calls C<clGetGLTextureInfo> with C<CL_GL_MIPMAP_LEVEL> and returns the result.
		1473
		1474	=for gengetinfo end gl_texture
		1475
1033	=back	1476	=back
1034		1477
1035	=head2 THE OpenCL::Sampler CLASS	1478	=head2 THE OpenCL::Sampler CLASS
1036		1479
1037	=over 4	1480	=over 4
…		…
1070		1513
1071	=head2 THE OpenCL::Program CLASS	1514	=head2 THE OpenCL::Program CLASS
1072		1515
1073	=over 4	1516	=over 4
1074		1517
1075	=item $program->build ($device, $options = "")	1518	=item $program->build (\@devices = undef, $options = "", $cb->($program) = undef)
1076		1519
1077	Tries to build the program with the givne options.	1520	Tries to build the program with the given options. See also the
		1521	C<$ctx->build> convenience function.
		1522
		1523	If a callback is specified, then it will be called when compilation is
		1524	finished. Note that many OpenCL implementations block your program while
		1525	compiling whether you use a callback or not. See C<build_async> if you
		1526	want to make sure the build is done in the background.
		1527
		1528	Note that some OpenCL implementations atc up badly, and don't call the
		1529	callback in some error cases (but call it in others). This implementation
		1530	assumes the callback will always be called, and leaks memory if this is
		1531	not so. So best make sure you don't pass in invalid values.
1078		1532
1079	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clBuildProgram.html>	1533	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clBuildProgram.html>
		1534
		1535	=item $program->build_async (\@devices = undef, $options = "", $cb->($program) = undef)
		1536
		1537	Similar to C<< ->build >>, except it starts a thread, and never fails (you
		1538	need to check the compilation status form the callback, or by polling).
1080		1539
1081	=item $packed_value = $program->build_info ($device, $name)	1540	=item $packed_value = $program->build_info ($device, $name)
1082		1541
1083	Similar to C<< $platform->info >>, but returns build info for a previous	1542	Similar to C<< $platform->info >>, but returns build info for a previous
1084	build attempt for the given device.	1543	build attempt for the given device.
…		…
1089		1548
1090	Creates an OpenCL::Kernel object out of the named C<__kernel> function in	1549	Creates an OpenCL::Kernel object out of the named C<__kernel> function in
1091	the program.	1550	the program.
1092		1551
1093	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateKernel.html>	1552	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateKernel.html>
		1553
		1554	=item @kernels = $program->kernels_in_program
		1555
		1556	Returns all kernels successfully compiled for all devices in program.
		1557
		1558	http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateKernelsInProgram.html
1094		1559
1095	=for gengetinfo begin program_build	1560	=for gengetinfo begin program_build
1096		1561
1097	=item $build_status = $program->build_status ($device)	1562	=item $build_status = $program->build_status ($device)
1098		1563
…		…
1220		1685
1221	Calls C<clGetKernelWorkGroupInfo> with C<CL_KERNEL_PRIVATE_MEM_SIZE> and returns the result.	1686	Calls C<clGetKernelWorkGroupInfo> with C<CL_KERNEL_PRIVATE_MEM_SIZE> and returns the result.
1222		1687
1223	=for gengetinfo end kernel_work_group	1688	=for gengetinfo end kernel_work_group
1224		1689
1225	=item $kernel->set_TYPE ($index, $value)	1690	=item $kernel->set_TYPE ($index, $value)
1226		1691
		1692	=item $kernel->set_char ($index, $value)
		1693
		1694	=item $kernel->set_uchar ($index, $value)
		1695
		1696	=item $kernel->set_short ($index, $value)
		1697
		1698	=item $kernel->set_ushort ($index, $value)
		1699
		1700	=item $kernel->set_int ($index, $value)
		1701
		1702	=item $kernel->set_uint ($index, $value)
		1703
		1704	=item $kernel->set_long ($index, $value)
		1705
		1706	=item $kernel->set_ulong ($index, $value)
		1707
		1708	=item $kernel->set_half ($index, $value)
		1709
		1710	=item $kernel->set_float ($index, $value)
		1711
		1712	=item $kernel->set_double ($index, $value)
		1713
		1714	=item $kernel->set_memory ($index, $value)
		1715
		1716	=item $kernel->set_buffer ($index, $value)
		1717
		1718	=item $kernel->set_image ($index, $value)
		1719
		1720	=item $kernel->set_sampler ($index, $value)
		1721
		1722	=item $kernel->set_local ($index, $value)
		1723
		1724	=item $kernel->set_event ($index, $value)
		1725
1227	This is a family of methods to set the kernel argument with the number C<$index> to the give C<$value>.	1726	This is a family of methods to set the kernel argument with the number
1228		1727	C<$index> to the give C<$value>.
1229	TYPE is one of C<char>, C<uchar>, C<short>, C<ushort>, C<int>, C<uint>,
1230	C<long>, C<ulong>, C<half>, C<float>, C<double>, C<memory>, C<buffer>,
1231	C<image2d>, C<image3d>, C<sampler> or C<event>.
1232		1728
1233	Chars and integers (including the half type) are specified as integers,	1729	Chars and integers (including the half type) are specified as integers,
1234	float and double as floating point values, memory/buffer/image2d/image3d	1730	float and double as floating point values, memory/buffer/image must be
1235	must be an object of that type or C<undef>, and sampler and event must be	1731	an object of that type or C<undef>, local-memory arguments are set by
1236	objects of that type.	1732	specifying the size, and sampler and event must be objects of that type.
		1733
		1734	Note that C<set_memory> works for all memory objects (all types of buffers
		1735	and images) - the main purpose of the more specific C<set_TYPE> functions
		1736	is type checking.
		1737
		1738	Setting an argument for a kernel does NOT keep a reference to the object -
		1739	for example, if you set an argument to some image object, free the image,
		1740	and call the kernel, you will run into undefined behaviour.
1237		1741
1238	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clSetKernelArg.html>	1742	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clSetKernelArg.html>
1239		1743
1240	=back	1744	=back
1241		1745
…		…
1250		1754
1251	Waits for the event to complete.	1755	Waits for the event to complete.
1252		1756
1253	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clWaitForEvents.html>	1757	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clWaitForEvents.html>
1254		1758
		1759	=item $ev->cb ($exec_callback_type, $callback->($event, $event_command_exec_status))
		1760
		1761	Adds a callback to the callback stack for the given event type. There is
		1762	no way to remove a callback again.
		1763
		1764	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clSetEventCallback.html>
		1765
1255	=item $packed_value = $ev->info ($name)	1766	=item $packed_value = $ev->info ($name)
1256		1767
1257	See C<< $platform->info >> for details.	1768	See C<< $platform->info >> for details.
1258		1769
1259	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetEventInfo.html>	1770	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetEventInfo.html>
…		…
1319		1830
1320	=over 4	1831	=over 4
1321		1832
1322	=item $ev->set_status ($execution_status)	1833	=item $ev->set_status ($execution_status)
1323		1834
		1835	Sets the execution status of the user event. Can only be called once,
		1836	either with OpenCL::COMPLETE or a negative number as status.
		1837
1324	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clSetUserEventStatus.html>	1838	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clSetUserEventStatus.html>
1325		1839
1326	=back	1840	=back
1327		1841
1328	=cut	1842	=cut
1329
1330	package OpenCL;
1331
1332	use common::sense;
1333
1334	BEGIN {
1335	our $VERSION = '0.92';
1336
1337	require XSLoader;
1338	XSLoader::load (__PACKAGE__, $VERSION);
1339
1340	@OpenCL::Buffer::ISA =
1341	@OpenCL::Image::ISA = OpenCL::Memory::;
1342
1343	@OpenCL::BufferObj::ISA = OpenCL::Buffer::;
1344
1345	@OpenCL::Image2D::ISA =
1346	@OpenCL::Image3D::ISA = OpenCL::Image::;
1347
1348	@OpenCL::UserEvent::ISA = OpenCL::Event::;
1349	}
1350		1843
1351	1;	1844	1;
1352		1845
1353	=head1 AUTHOR	1846	=head1 AUTHOR
1354		1847

Diff Legend

-–
+Removed lines
-+
+Added lines
-<
+Changed lines
->
+Changed lines

Comparing OpenCL/OpenCL.pm (file contents): Revision 1.33 by root, Thu Apr 19 12:55:30 2012 UTC vs. Revision 1.58 by root, Wed Apr 25 20:29:03 2012 UTC

Diff Legend

Comparing OpenCL/OpenCL.pm (file contents):
Revision 1.33 by root, Thu Apr 19 12:55:30 2012 UTC vs.
Revision 1.58 by root, Wed Apr 25 20:29:03 2012 UTC