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

Comparing OpenCL/OpenCL.pm (file contents):
Revision 1.63 by root, Sun Apr 29 18:24:35 2012 UTC vs.
Revision 1.77 by root, Sat May 5 12:54:03 2012 UTC

…		…
43		43
44	OpenCL::Event objects are used to signal when something is complete.	44	OpenCL::Event objects are used to signal when something is complete.
45		45
46	=head2 HELPFUL RESOURCES	46	=head2 HELPFUL RESOURCES
47		47
48	The OpenCL specs used to develop this module:	48	The OpenCL specs used to develop this module - download these and keept
		49	hema round, they are required reference material:
49		50
50	http://www.khronos.org/registry/cl/specs/opencl-1.1.pdf	51	http://www.khronos.org/registry/cl/specs/opencl-1.1.pdf
51	http://www.khronos.org/registry/cl/specs/opencl-1.2.pdf	52	http://www.khronos.org/registry/cl/specs/opencl-1.2.pdf
52	http://www.khronos.org/registry/cl/specs/opencl-1.2-extensions.pdf	53	http://www.khronos.org/registry/cl/specs/opencl-1.2-extensions.pdf
53		54
…		…
95	initialised at creation time).	96	initialised at creation time).
96		97
97	Enqueue the kernel execution.	98	Enqueue the kernel execution.
98		99
99	Enqueue buffer reads for your output buffer to read results.	100	Enqueue buffer reads for your output buffer to read results.
		101
		102	=head1 OPENCL 1.1 VS. OPENCL 1.2
		103
		104	This module supports both OpenCL version 1.1 and 1.2, although the OpenCL
		105	1.2 interface hasn't been tested much for lack of availability of an
		106	actual implementation.
		107
		108	Every function or method in this manual page that interfaces to a
		109	particular OpenCL function has a link to the its C manual page.
		110
		111	If the link contains a F<1.1>, then this function is an OpenCL 1.1
		112	function. Most but not all also exist in OpenCL 1.2, and this module
		113	tries to emulate the missing ones for you, when told to do so at
		114	compiletime. You cna check whether a function was removed in OpenCL 1.2 by
		115	replacing the F<1.1> component in the URL by F<1.2>.
		116
		117	If the link contains a F<1.2>, then this is a OpenCL 1.2-only
		118	function. Even if the module was compiled with OpenCL 1.2 header files
		119	and has an 1.2 OpenCL library, calling such a function on a platform that
		120	doesn't implement 1.2 causes undefined behaviour, usually a crash (But
		121	this is not guaranteed).
		122
		123	You can find out whether this module was compiled to prefer 1.1
		124	functionality by ooking at C<OpenCL::PREFER_1_1> - if it is true, then
		125	1.1 functions generally are implemented using 1.1 OpenCL functions. If it
		126	is false, then 1.1 functions missing from 1.2 are emulated by calling 1.2
		127	fucntions.
		128
		129	This is a somewhat sorry state of affairs, but the Khronos group choose to
		130	make every release of OpenCL source and binary incompatible with previous
		131	releases.
100		132
101	=head1 EXAMPLES	133	=head1 EXAMPLES
102		134
103	=head2 Enumerate all devices and get contexts for them.	135	=head2 Enumerate all devices and get contexts for them.
104		136
…		…
210		242
211	# wait for the last event to complete	243	# wait for the last event to complete
212	$ev->wait;	244	$ev->wait;
213		245
214	=head2 Use the OpenGL module to share a texture between OpenCL and OpenGL and draw some julia	246	=head2 Use the OpenGL module to share a texture between OpenCL and OpenGL and draw some julia
215	set tunnel effect.	247	set flight effect.
216		248
217	This is quite a long example to get you going.	249	This is quite a long example to get you going - you can download it from
		250	L<http://cvs.schmorp.de/OpenCL/examples/juliaflight>.
218		251
219	use OpenGL ":all";	252	use OpenGL ":all";
220	use OpenCL;	253	use OpenCL;
221		254
		255	my $S = $ARGV[0] \|\| 256; # window/texture size, smaller is faster
		256
222	# open a window and create a gl texture	257	# open a window and create a gl texture
223	OpenGL::glpOpenWindow width => 256, height => 256;	258	OpenGL::glpOpenWindow width => $S, height => $S;
224	my $texid = glGenTextures_p 1;	259	my $texid = glGenTextures_p 1;
225	glBindTexture GL_TEXTURE_2D, $texid;	260	glBindTexture GL_TEXTURE_2D, $texid;
226	glTexImage2D_c GL_TEXTURE_2D, 0, GL_RGBA8, 256, 256, 0, GL_RGBA, GL_UNSIGNED_BYTE, 0;	261	glTexImage2D_c GL_TEXTURE_2D, 0, GL_RGBA8, $S, $S, 0, GL_RGBA, GL_UNSIGNED_BYTE, 0;
227		262
228	# find and use the first opencl device that let's us get a shared opengl context	263	# find and use the first opencl device that let's us get a shared opengl context
229	my $platform;	264	my $platform;
230	my $dev;	265	my $dev;
231	my $ctx;	266	my $ctx;
…		…
250	# now the boring opencl code	285	# now the boring opencl code
251	my $src = <<EOF;	286	my $src = <<EOF;
252	kernel void	287	kernel void
253	juliatunnel (write_only image2d_t img, float time)	288	juliatunnel (write_only image2d_t img, float time)
254	{	289	{
255	float2 p = (float2)(get_global_id (0), get_global_id (1)) / 256.f * 2.f - 1.f;	290	int2 xy = (int2)(get_global_id (0), get_global_id (1));
		291	float2 p = convert_float2 (xy) / $S.f * 2.f - 1.f;
256		292
257	float2 m = (float2)(1.f, p.y) / fabs (p.x);	293	float2 m = (float2)(1.f, p.y) / fabs (p.x); // tunnel
258	m.x = fabs (fmod (m.x + time * 0.05f, 4.f)) - 2.f;	294	m.x = fabs (fmod (m.x + time * 0.05f, 4.f) - 2.f);
259		295
260	float2 z = m;	296	float2 z = m;
261	float2 c = (float2)(sin (time * 0.05005), cos (time * 0.06001));	297	float2 c = (float2)(sin (time * 0.01133f), cos (time * 0.02521f));
262		298
263	for (int i = 0; i < 25 && dot (z, z) < 4.f; ++i)	299	for (int i = 0; i < 25 && dot (z, z) < 4.f; ++i) // standard julia
264	z = (float2)(z.x * z.x - z.y * z.y, 2.f * z.x * z.y) + c;	300	z = (float2)(z.x * z.x - z.y * z.y, 2.f * z.x * z.y) + c;
265		301
266	float3 colour = (float3)(z.x, z.y, z.x * z.y);	302	float3 colour = (float3)(z.x, z.y, atan2 (z.y, z.x));
267	write_imagef (img, (int2)(get_global_id (0), get_global_id (1)), (float4)(colour * p.x * p.x, 1.));	303	write_imagef (img, xy, (float4)(colour * p.x * p.x, 1.));
268	}	304	}
269	EOF	305	EOF
270		306
271	my $prog = $ctx->build_program ($src);	307	my $prog = $ctx->build_program ($src);
272	my $kernel = $prog->kernel ("juliatunnel");	308	my $kernel = $prog->kernel ("juliatunnel");
…		…
276	for (my $time; ; ++$time) {	312	for (my $time; ; ++$time) {
277	# acquire objects from opengl	313	# acquire objects from opengl
278	$queue->acquire_gl_objects ([$tex]);	314	$queue->acquire_gl_objects ([$tex]);
279		315
280	# configure and run our kernel	316	# configure and run our kernel
281	$kernel->set_image2d (0, $tex);	317	$kernel->setf ("mf", $tex, $time*2); # mf = memory object, float
282	$kernel->set_float (1, $time);
283	$queue->nd_range_kernel ($kernel, undef, [256, 256], undef);	318	$queue->nd_range_kernel ($kernel, undef, [$S, $S], undef);
284		319
285	# release objects to opengl again	320	# release objects to opengl again
286	$queue->release_gl_objects ([$tex]);	321	$queue->release_gl_objects ([$tex]);
287		322
288	# wait	323	# wait
…		…
301		336
302	glXSwapBuffers;	337	glXSwapBuffers;
303		338
304	select undef, undef, undef, 1/60;	339	select undef, undef, undef, 1/60;
305	}	340	}
		341
		342	=head2 How to modify the previous example to not rely on GL sharing.
		343
		344	For those poor souls with only a sucky CPU OpenCL implementation, you
		345	currently have to read the image into some perl scalar, and then modify a
		346	texture or use glDrawPixels or so).
		347
		348	First, when you don't need gl sharing, you can create the context much simpler:
		349
		350	$ctx = $platform->context (undef, [$dev])
		351
		352	To use a texture, you would modify the above example by creating an
		353	OpenCL::Image manually instead of deriving it from a texture:
		354
		355	my $tex = $ctx->image2d (OpenCL::MEM_WRITE_ONLY, OpenCL::RGBA, OpenCL::UNORM_INT8, $S, $S);
		356
		357	And in the draw loop, intead of acquire_gl_objects/release_gl_objects, you
		358	would read the image2d after the kernel has written it:
		359
		360	$queue->read_image ($tex, 0, 0, 0, 0, $S, $S, 1, 0, 0, my $data);
		361
		362	And then you would upload the pixel data to the texture (or use glDrawPixels):
		363
		364	glTexSubImage2D_s GL_TEXTURE_2D, 0, 0, 0, $S, $S, GL_RGBA, GL_UNSIGNED_BYTE, $data;
		365
		366	The fully modified example can be found at
		367	L<http://cvs.schmorp.de/OpenCL/examples/juliaflight-nosharing>.
		368
		369	=head2 Julia sets look soooo 80ies.
		370
		371	Then colour them differently, e.g. using orbit traps! Replace the loop and
		372	colour calculation from the previous examples by this:
		373
		374	float2 dm = (float2)(1.f, 1.f);
		375
		376	for (int i = 0; i < 25; ++i)
		377	{
		378	z = (float2)(z.x * z.x - z.y * z.y, 2.f * z.x * z.y) + c;
		379	dm = fmin (dm, (float2)(fabs (dot (z, z) - 1.f), fabs (z.x - 1.f)));
		380	}
		381
		382	float3 colour = (float3)(dm.x * dm.y, dm.x * dm.y, dm.x);
		383
		384	Also try C<-10.f> instead of C<-1.f>.
306		385
307	=head1 DOCUMENTATION	386	=head1 DOCUMENTATION
308		387
309	=head2 BASIC CONVENTIONS	388	=head2 BASIC CONVENTIONS
310		389
…		…
386	OpenCL can generate a number of (potentially) asynchronous events, for	465	OpenCL can generate a number of (potentially) asynchronous events, for
387	example, after compiling a program, to signal a context-related error or,	466	example, after compiling a program, to signal a context-related error or,
388	perhaps most important, to signal completion of queued jobs (by setting	467	perhaps most important, to signal completion of queued jobs (by setting
389	callbacks on OpenCL::Event objects).	468	callbacks on OpenCL::Event objects).
390		469
		470	The OpenCL module converts all these callbacks into events - you can
		471	still register callbacks, but they are not executed when your OpenCL
		472	implementation calls the actual callback, but only later. Therefore, none
		473	of the limitations of OpenCL callbacks apply to the perl implementation:
		474	it is perfectly safe to make blocking operations from event callbacks, and
		475	enqueued operations don't need to be flushed.
		476
391	To facilitate this, this module maintains an event queue - each	477	To facilitate this, this module maintains an event queue - each
392	time an asynchronous event happens, it is queued, and perl will be	478	time an asynchronous event happens, it is queued, and perl will be
393	interrupted. This is implemented via the L<Async::Interrupt> module. In	479	interrupted. This is implemented via the L<Async::Interrupt> module. In
394	addition, this module has L<AnyEvent> support, so it can seamlessly	480	addition, this module has L<AnyEvent> support, so it can seamlessly
395	integrate itself into many event loops.	481	integrate itself into many event loops.
396		482
397	Since this module is a bit hard to understand, here are some case examples:	483	Since L<Async::Interrupt> is a bit hard to understand, here are some case examples:
398		484
399	=head3 Don't use callbacks.	485	=head3 Don't use callbacks.
400		486
401	When your program never uses any callbacks, then there will never be any	487	When your program never uses any callbacks, then there will never be any
402	notifications you need to take care of, and therefore no need to worry	488	notifications you need to take care of, and therefore no need to worry
…		…
499	use Async::Interrupt ();	585	use Async::Interrupt ();
500		586
501	our $POLL_FUNC; # set by XS	587	our $POLL_FUNC; # set by XS
502		588
503	BEGIN {	589	BEGIN {
504	our $VERSION = '0.98';	590	our $VERSION = '0.99';
505		591
506	require XSLoader;	592	require XSLoader;
507	XSLoader::load (__PACKAGE__, $VERSION);	593	XSLoader::load (__PACKAGE__, $VERSION);
508		594
509	@OpenCL::Platform::ISA =	595	@OpenCL::Platform::ISA =
…		…
514	@OpenCL::Sampler::ISA =	600	@OpenCL::Sampler::ISA =
515	@OpenCL::Program::ISA =	601	@OpenCL::Program::ISA =
516	@OpenCL::Kernel::ISA =	602	@OpenCL::Kernel::ISA =
517	@OpenCL::Event::ISA = OpenCL::Object::;	603	@OpenCL::Event::ISA = OpenCL::Object::;
518		604
		605	@OpenCL::SubDevice::ISA = OpenCL::Device::;
		606
519	@OpenCL::Buffer::ISA =	607	@OpenCL::Buffer::ISA =
520	@OpenCL::Image::ISA = OpenCL::Memory::;	608	@OpenCL::Image::ISA = OpenCL::Memory::;
521		609
522	@OpenCL::BufferObj::ISA = OpenCL::Buffer::;	610	@OpenCL::BufferObj::ISA = OpenCL::Buffer::;
523		611
…		…
527	@OpenCL::Image1D::ISA =	615	@OpenCL::Image1D::ISA =
528	@OpenCL::Image1DArray::ISA =	616	@OpenCL::Image1DArray::ISA =
529	@OpenCL::Image1DBuffer::ISA = OpenCL::Image::;	617	@OpenCL::Image1DBuffer::ISA = OpenCL::Image::;
530		618
531	@OpenCL::UserEvent::ISA = OpenCL::Event::;	619	@OpenCL::UserEvent::ISA = OpenCL::Event::;
		620
		621	@OpenCL::MappedBuffer::ISA =
		622	@OpenCL::MappedImage::ISA = OpenCL::Mapped::;
532	}	623	}
533		624
534	=head2 THE OpenCL PACKAGE	625	=head2 THE OpenCL PACKAGE
535		626
536	=over 4	627	=over 4
…		…
560	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetPlatformIDs.html>	651	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetPlatformIDs.html>
561		652
562	=item $ctx = OpenCL::context_from_type $properties, $type = OpenCL::DEVICE_TYPE_DEFAULT, $callback->($err, $pvt) = $print_stderr	653	=item $ctx = OpenCL::context_from_type $properties, $type = OpenCL::DEVICE_TYPE_DEFAULT, $callback->($err, $pvt) = $print_stderr
563		654
564	Tries to create a context from a default device and platform type - never worked for me.	655	Tries to create a context from a default device and platform type - never worked for me.
		656	Consider using C<< $platform->context_from_type >> instead.
		657
		658	type: OpenCL::DEVICE_TYPE_DEFAULT, OpenCL::DEVICE_TYPE_CPU, OpenCL::DEVICE_TYPE_GPU,
		659	OpenCL::DEVICE_TYPE_ACCELERATOR, OpenCL::DEVICE_TYPE_CUSTOM, OpenCL::DEVICE_TYPE_ALL.
565		660
566	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateContextFromType.html>	661	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateContextFromType.html>
567		662
568	=item $ctx = OpenCL::context $properties, \@devices, $callback->($err, $pvt) = $print_stderr)	663	=item $ctx = OpenCL::context $properties, \@devices, $callback->($err, $pvt) = $print_stderr)
569		664
570	Create a new OpenCL::Context object using the given device object(s). This	665	Create a new OpenCL::Context object using the given device object(s).
571	function isn't implemented yet, use C<< $platform->context >> instead.	666	Consider using C<< $platform->context >> instead.
572		667
573	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateContext.html>	668	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateContext.html>
574		669
575	=item OpenCL::wait_for_events $wait_events...	670	=item OpenCL::wait_for_events $wait_events...
576		671
…		…
683		778
684	=for gengetinfo begin platform	779	=for gengetinfo begin platform
685		780
686	=item $string = $platform->profile	781	=item $string = $platform->profile
687		782
688	Calls C<clGetPlatformInfo> with C<CL_PLATFORM_PROFILE> and returns the result.	783	Calls C<clGetPlatformInfo> with C<OpenCL::PLATFORM_PROFILE> and returns the result.
689		784
690	=item $string = $platform->version	785	=item $string = $platform->version
691		786
692	Calls C<clGetPlatformInfo> with C<CL_PLATFORM_VERSION> and returns the result.	787	Calls C<clGetPlatformInfo> with C<OpenCL::PLATFORM_VERSION> and returns the result.
693		788
694	=item $string = $platform->name	789	=item $string = $platform->name
695		790
696	Calls C<clGetPlatformInfo> with C<CL_PLATFORM_NAME> and returns the result.	791	Calls C<clGetPlatformInfo> with C<OpenCL::PLATFORM_NAME> and returns the result.
697		792
698	=item $string = $platform->vendor	793	=item $string = $platform->vendor
699		794
700	Calls C<clGetPlatformInfo> with C<CL_PLATFORM_VENDOR> and returns the result.	795	Calls C<clGetPlatformInfo> with C<OpenCL::PLATFORM_VENDOR> and returns the result.
701		796
702	=item $string = $platform->extensions	797	=item $string = $platform->extensions
703		798
704	Calls C<clGetPlatformInfo> with C<CL_PLATFORM_EXTENSIONS> and returns the result.	799	Calls C<clGetPlatformInfo> with C<OpenCL::PLATFORM_EXTENSIONS> and returns the result.
705		800
706	=for gengetinfo end platform	801	=for gengetinfo end platform
707		802
708	=back	803	=back
709		804
…		…
715		810
716	See C<< $platform->info >> for details.	811	See C<< $platform->info >> for details.
717		812
718	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetDeviceInfo.html>	813	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetDeviceInfo.html>
719		814
		815	=item @devices = $device->sub_devices (\@properties)
		816
		817	Creates OpencL::SubDevice objects by partitioning an existing device.
		818
		819	L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clCreateSubDevices.html>
		820
720	=for gengetinfo begin device	821	=for gengetinfo begin device
721		822
722	=item $device_type = $device->type	823	=item $device_type = $device->type
723		824
724	Calls C<clGetDeviceInfo> with C<CL_DEVICE_TYPE> and returns the result.	825	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_TYPE> and returns the result.
725		826
726	=item $uint = $device->vendor_id	827	=item $uint = $device->vendor_id
727		828
728	Calls C<clGetDeviceInfo> with C<CL_DEVICE_VENDOR_ID> and returns the result.	829	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_VENDOR_ID> and returns the result.
729		830
730	=item $uint = $device->max_compute_units	831	=item $uint = $device->max_compute_units
731		832
732	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_COMPUTE_UNITS> and returns the result.	833	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MAX_COMPUTE_UNITS> and returns the result.
733		834
734	=item $uint = $device->max_work_item_dimensions	835	=item $uint = $device->max_work_item_dimensions
735		836
736	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_WORK_ITEM_DIMENSIONS> and returns the result.	837	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MAX_WORK_ITEM_DIMENSIONS> and returns the result.
737		838
738	=item $int = $device->max_work_group_size	839	=item $int = $device->max_work_group_size
739		840
740	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_WORK_GROUP_SIZE> and returns the result.	841	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MAX_WORK_GROUP_SIZE> and returns the result.
741		842
742	=item @ints = $device->max_work_item_sizes	843	=item @ints = $device->max_work_item_sizes
743		844
744	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_WORK_ITEM_SIZES> and returns the result.	845	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MAX_WORK_ITEM_SIZES> and returns the result.
745		846
746	=item $uint = $device->preferred_vector_width_char	847	=item $uint = $device->preferred_vector_width_char
747		848
748	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PREFERRED_VECTOR_WIDTH_CHAR> and returns the result.	849	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PREFERRED_VECTOR_WIDTH_CHAR> and returns the result.
749		850
750	=item $uint = $device->preferred_vector_width_short	851	=item $uint = $device->preferred_vector_width_short
751		852
752	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PREFERRED_VECTOR_WIDTH_SHORT> and returns the result.	853	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PREFERRED_VECTOR_WIDTH_SHORT> and returns the result.
753		854
754	=item $uint = $device->preferred_vector_width_int	855	=item $uint = $device->preferred_vector_width_int
755		856
756	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PREFERRED_VECTOR_WIDTH_INT> and returns the result.	857	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PREFERRED_VECTOR_WIDTH_INT> and returns the result.
757		858
758	=item $uint = $device->preferred_vector_width_long	859	=item $uint = $device->preferred_vector_width_long
759		860
760	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PREFERRED_VECTOR_WIDTH_LONG> and returns the result.	861	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PREFERRED_VECTOR_WIDTH_LONG> and returns the result.
761		862
762	=item $uint = $device->preferred_vector_width_float	863	=item $uint = $device->preferred_vector_width_float
763		864
764	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PREFERRED_VECTOR_WIDTH_FLOAT> and returns the result.	865	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PREFERRED_VECTOR_WIDTH_FLOAT> and returns the result.
765		866
766	=item $uint = $device->preferred_vector_width_double	867	=item $uint = $device->preferred_vector_width_double
767		868
768	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PREFERRED_VECTOR_WIDTH_DOUBLE> and returns the result.	869	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PREFERRED_VECTOR_WIDTH_DOUBLE> and returns the result.
769		870
770	=item $uint = $device->max_clock_frequency	871	=item $uint = $device->max_clock_frequency
771		872
772	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_CLOCK_FREQUENCY> and returns the result.	873	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MAX_CLOCK_FREQUENCY> and returns the result.
773		874
774	=item $bitfield = $device->address_bits	875	=item $bitfield = $device->address_bits
775		876
776	Calls C<clGetDeviceInfo> with C<CL_DEVICE_ADDRESS_BITS> and returns the result.	877	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_ADDRESS_BITS> and returns the result.
777		878
778	=item $uint = $device->max_read_image_args	879	=item $uint = $device->max_read_image_args
779		880
780	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_READ_IMAGE_ARGS> and returns the result.	881	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MAX_READ_IMAGE_ARGS> and returns the result.
781		882
782	=item $uint = $device->max_write_image_args	883	=item $uint = $device->max_write_image_args
783		884
784	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_WRITE_IMAGE_ARGS> and returns the result.	885	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MAX_WRITE_IMAGE_ARGS> and returns the result.
785		886
786	=item $ulong = $device->max_mem_alloc_size	887	=item $ulong = $device->max_mem_alloc_size
787		888
788	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_MEM_ALLOC_SIZE> and returns the result.	889	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MAX_MEM_ALLOC_SIZE> and returns the result.
789		890
790	=item $int = $device->image2d_max_width	891	=item $int = $device->image2d_max_width
791		892
792	Calls C<clGetDeviceInfo> with C<CL_DEVICE_IMAGE2D_MAX_WIDTH> and returns the result.	893	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_IMAGE2D_MAX_WIDTH> and returns the result.
793		894
794	=item $int = $device->image2d_max_height	895	=item $int = $device->image2d_max_height
795		896
796	Calls C<clGetDeviceInfo> with C<CL_DEVICE_IMAGE2D_MAX_HEIGHT> and returns the result.	897	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_IMAGE2D_MAX_HEIGHT> and returns the result.
797		898
798	=item $int = $device->image3d_max_width	899	=item $int = $device->image3d_max_width
799		900
800	Calls C<clGetDeviceInfo> with C<CL_DEVICE_IMAGE3D_MAX_WIDTH> and returns the result.	901	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_IMAGE3D_MAX_WIDTH> and returns the result.
801		902
802	=item $int = $device->image3d_max_height	903	=item $int = $device->image3d_max_height
803		904
804	Calls C<clGetDeviceInfo> with C<CL_DEVICE_IMAGE3D_MAX_HEIGHT> and returns the result.	905	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_IMAGE3D_MAX_HEIGHT> and returns the result.
805		906
806	=item $int = $device->image3d_max_depth	907	=item $int = $device->image3d_max_depth
807		908
808	Calls C<clGetDeviceInfo> with C<CL_DEVICE_IMAGE3D_MAX_DEPTH> and returns the result.	909	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_IMAGE3D_MAX_DEPTH> and returns the result.
809		910
810	=item $uint = $device->image_support	911	=item $uint = $device->image_support
811		912
812	Calls C<clGetDeviceInfo> with C<CL_DEVICE_IMAGE_SUPPORT> and returns the result.	913	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_IMAGE_SUPPORT> and returns the result.
813		914
814	=item $int = $device->max_parameter_size	915	=item $int = $device->max_parameter_size
815		916
816	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_PARAMETER_SIZE> and returns the result.	917	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MAX_PARAMETER_SIZE> and returns the result.
817		918
818	=item $uint = $device->max_samplers	919	=item $uint = $device->max_samplers
819		920
820	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_SAMPLERS> and returns the result.	921	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MAX_SAMPLERS> and returns the result.
821		922
822	=item $uint = $device->mem_base_addr_align	923	=item $uint = $device->mem_base_addr_align
823		924
824	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MEM_BASE_ADDR_ALIGN> and returns the result.	925	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MEM_BASE_ADDR_ALIGN> and returns the result.
825		926
826	=item $uint = $device->min_data_type_align_size	927	=item $uint = $device->min_data_type_align_size
827		928
828	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MIN_DATA_TYPE_ALIGN_SIZE> and returns the result.	929	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MIN_DATA_TYPE_ALIGN_SIZE> and returns the result.
829		930
830	=item $device_fp_config = $device->single_fp_config	931	=item $device_fp_config = $device->single_fp_config
831		932
832	Calls C<clGetDeviceInfo> with C<CL_DEVICE_SINGLE_FP_CONFIG> and returns the result.	933	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_SINGLE_FP_CONFIG> and returns the result.
833		934
834	=item $device_mem_cache_type = $device->global_mem_cache_type	935	=item $device_mem_cache_type = $device->global_mem_cache_type
835		936
836	Calls C<clGetDeviceInfo> with C<CL_DEVICE_GLOBAL_MEM_CACHE_TYPE> and returns the result.	937	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_GLOBAL_MEM_CACHE_TYPE> and returns the result.
837		938
838	=item $uint = $device->global_mem_cacheline_size	939	=item $uint = $device->global_mem_cacheline_size
839		940
840	Calls C<clGetDeviceInfo> with C<CL_DEVICE_GLOBAL_MEM_CACHELINE_SIZE> and returns the result.	941	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_GLOBAL_MEM_CACHELINE_SIZE> and returns the result.
841		942
842	=item $ulong = $device->global_mem_cache_size	943	=item $ulong = $device->global_mem_cache_size
843		944
844	Calls C<clGetDeviceInfo> with C<CL_DEVICE_GLOBAL_MEM_CACHE_SIZE> and returns the result.	945	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_GLOBAL_MEM_CACHE_SIZE> and returns the result.
845		946
846	=item $ulong = $device->global_mem_size	947	=item $ulong = $device->global_mem_size
847		948
848	Calls C<clGetDeviceInfo> with C<CL_DEVICE_GLOBAL_MEM_SIZE> and returns the result.	949	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_GLOBAL_MEM_SIZE> and returns the result.
849		950
850	=item $ulong = $device->max_constant_buffer_size	951	=item $ulong = $device->max_constant_buffer_size
851		952
852	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_CONSTANT_BUFFER_SIZE> and returns the result.	953	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MAX_CONSTANT_BUFFER_SIZE> and returns the result.
853		954
854	=item $uint = $device->max_constant_args	955	=item $uint = $device->max_constant_args
855		956
856	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_CONSTANT_ARGS> and returns the result.	957	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MAX_CONSTANT_ARGS> and returns the result.
857		958
858	=item $device_local_mem_type = $device->local_mem_type	959	=item $device_local_mem_type = $device->local_mem_type
859		960
860	Calls C<clGetDeviceInfo> with C<CL_DEVICE_LOCAL_MEM_TYPE> and returns the result.	961	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_LOCAL_MEM_TYPE> and returns the result.
861		962
862	=item $ulong = $device->local_mem_size	963	=item $ulong = $device->local_mem_size
863		964
864	Calls C<clGetDeviceInfo> with C<CL_DEVICE_LOCAL_MEM_SIZE> and returns the result.	965	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_LOCAL_MEM_SIZE> and returns the result.
865		966
866	=item $boolean = $device->error_correction_support	967	=item $boolean = $device->error_correction_support
867		968
868	Calls C<clGetDeviceInfo> with C<CL_DEVICE_ERROR_CORRECTION_SUPPORT> and returns the result.	969	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_ERROR_CORRECTION_SUPPORT> and returns the result.
869		970
870	=item $int = $device->profiling_timer_resolution	971	=item $int = $device->profiling_timer_resolution
871		972
872	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PROFILING_TIMER_RESOLUTION> and returns the result.	973	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PROFILING_TIMER_RESOLUTION> and returns the result.
873		974
874	=item $boolean = $device->endian_little	975	=item $boolean = $device->endian_little
875		976
876	Calls C<clGetDeviceInfo> with C<CL_DEVICE_ENDIAN_LITTLE> and returns the result.	977	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_ENDIAN_LITTLE> and returns the result.
877		978
878	=item $boolean = $device->available	979	=item $boolean = $device->available
879		980
880	Calls C<clGetDeviceInfo> with C<CL_DEVICE_AVAILABLE> and returns the result.	981	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_AVAILABLE> and returns the result.
881		982
882	=item $boolean = $device->compiler_available	983	=item $boolean = $device->compiler_available
883		984
884	Calls C<clGetDeviceInfo> with C<CL_DEVICE_COMPILER_AVAILABLE> and returns the result.	985	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_COMPILER_AVAILABLE> and returns the result.
885		986
886	=item $device_exec_capabilities = $device->execution_capabilities	987	=item $device_exec_capabilities = $device->execution_capabilities
887		988
888	Calls C<clGetDeviceInfo> with C<CL_DEVICE_EXECUTION_CAPABILITIES> and returns the result.	989	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_EXECUTION_CAPABILITIES> and returns the result.
889		990
890	=item $command_queue_properties = $device->properties	991	=item $command_queue_properties = $device->properties
891		992
892	Calls C<clGetDeviceInfo> with C<CL_DEVICE_QUEUE_PROPERTIES> and returns the result.	993	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_QUEUE_PROPERTIES> and returns the result.
893		994
894	=item $ = $device->platform	995	=item $ = $device->platform
895		996
896	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PLATFORM> and returns the result.	997	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PLATFORM> and returns the result.
897		998
898	=item $string = $device->name	999	=item $string = $device->name
899		1000
900	Calls C<clGetDeviceInfo> with C<CL_DEVICE_NAME> and returns the result.	1001	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_NAME> and returns the result.
901		1002
902	=item $string = $device->vendor	1003	=item $string = $device->vendor
903		1004
904	Calls C<clGetDeviceInfo> with C<CL_DEVICE_VENDOR> and returns the result.	1005	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_VENDOR> and returns the result.
905		1006
906	=item $string = $device->driver_version	1007	=item $string = $device->driver_version
907		1008
908	Calls C<clGetDeviceInfo> with C<CL_DRIVER_VERSION> and returns the result.	1009	Calls C<clGetDeviceInfo> with C<OpenCL::DRIVER_VERSION> and returns the result.
909		1010
910	=item $string = $device->profile	1011	=item $string = $device->profile
911		1012
912	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PROFILE> and returns the result.	1013	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PROFILE> and returns the result.
913		1014
914	=item $string = $device->version	1015	=item $string = $device->version
915		1016
916	Calls C<clGetDeviceInfo> with C<CL_DEVICE_VERSION> and returns the result.	1017	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_VERSION> and returns the result.
917		1018
918	=item $string = $device->extensions	1019	=item $string = $device->extensions
919		1020
920	Calls C<clGetDeviceInfo> with C<CL_DEVICE_EXTENSIONS> and returns the result.	1021	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_EXTENSIONS> and returns the result.
921		1022
922	=item $uint = $device->preferred_vector_width_half	1023	=item $uint = $device->preferred_vector_width_half
923		1024
924	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PREFERRED_VECTOR_WIDTH_HALF> and returns the result.	1025	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PREFERRED_VECTOR_WIDTH_HALF> and returns the result.
925		1026
926	=item $uint = $device->native_vector_width_char	1027	=item $uint = $device->native_vector_width_char
927		1028
928	Calls C<clGetDeviceInfo> with C<CL_DEVICE_NATIVE_VECTOR_WIDTH_CHAR> and returns the result.	1029	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_NATIVE_VECTOR_WIDTH_CHAR> and returns the result.
929		1030
930	=item $uint = $device->native_vector_width_short	1031	=item $uint = $device->native_vector_width_short
931		1032
932	Calls C<clGetDeviceInfo> with C<CL_DEVICE_NATIVE_VECTOR_WIDTH_SHORT> and returns the result.	1033	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_NATIVE_VECTOR_WIDTH_SHORT> and returns the result.
933		1034
934	=item $uint = $device->native_vector_width_int	1035	=item $uint = $device->native_vector_width_int
935		1036
936	Calls C<clGetDeviceInfo> with C<CL_DEVICE_NATIVE_VECTOR_WIDTH_INT> and returns the result.	1037	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_NATIVE_VECTOR_WIDTH_INT> and returns the result.
937		1038
938	=item $uint = $device->native_vector_width_long	1039	=item $uint = $device->native_vector_width_long
939		1040
940	Calls C<clGetDeviceInfo> with C<CL_DEVICE_NATIVE_VECTOR_WIDTH_LONG> and returns the result.	1041	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_NATIVE_VECTOR_WIDTH_LONG> and returns the result.
941		1042
942	=item $uint = $device->native_vector_width_float	1043	=item $uint = $device->native_vector_width_float
943		1044
944	Calls C<clGetDeviceInfo> with C<CL_DEVICE_NATIVE_VECTOR_WIDTH_FLOAT> and returns the result.	1045	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_NATIVE_VECTOR_WIDTH_FLOAT> and returns the result.
945		1046
946	=item $uint = $device->native_vector_width_double	1047	=item $uint = $device->native_vector_width_double
947		1048
948	Calls C<clGetDeviceInfo> with C<CL_DEVICE_NATIVE_VECTOR_WIDTH_DOUBLE> and returns the result.	1049	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_NATIVE_VECTOR_WIDTH_DOUBLE> and returns the result.
949		1050
950	=item $uint = $device->native_vector_width_half	1051	=item $uint = $device->native_vector_width_half
951		1052
952	Calls C<clGetDeviceInfo> with C<CL_DEVICE_NATIVE_VECTOR_WIDTH_HALF> and returns the result.	1053	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_NATIVE_VECTOR_WIDTH_HALF> and returns the result.
953		1054
954	=item $device_fp_config = $device->double_fp_config	1055	=item $device_fp_config = $device->double_fp_config
955		1056
956	Calls C<clGetDeviceInfo> with C<CL_DEVICE_DOUBLE_FP_CONFIG> and returns the result.	1057	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_DOUBLE_FP_CONFIG> and returns the result.
957		1058
958	=item $device_fp_config = $device->half_fp_config	1059	=item $device_fp_config = $device->half_fp_config
959		1060
960	Calls C<clGetDeviceInfo> with C<CL_DEVICE_HALF_FP_CONFIG> and returns the result.	1061	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_HALF_FP_CONFIG> and returns the result.
961		1062
962	=item $boolean = $device->host_unified_memory	1063	=item $boolean = $device->host_unified_memory
963		1064
964	Calls C<clGetDeviceInfo> with C<CL_DEVICE_HOST_UNIFIED_MEMORY> and returns the result.	1065	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_HOST_UNIFIED_MEMORY> and returns the result.
965		1066
966	=item $device = $device->parent_device_ext	1067	=item $device = $device->parent_device_ext
967		1068
968	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PARENT_DEVICE_EXT> and returns the result.	1069	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PARENT_DEVICE_EXT> and returns the result.
969		1070
970	=item @device_partition_property_exts = $device->partition_types_ext	1071	=item @device_partition_property_exts = $device->partition_types_ext
971		1072
972	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PARTITION_TYPES_EXT> and returns the result.	1073	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PARTITION_TYPES_EXT> and returns the result.
973		1074
974	=item @device_partition_property_exts = $device->affinity_domains_ext	1075	=item @device_partition_property_exts = $device->affinity_domains_ext
975		1076
976	Calls C<clGetDeviceInfo> with C<CL_DEVICE_AFFINITY_DOMAINS_EXT> and returns the result.	1077	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_AFFINITY_DOMAINS_EXT> and returns the result.
977		1078
978	=item $uint = $device->reference_count_ext	1079	=item $uint = $device->reference_count_ext
979		1080
980	Calls C<clGetDeviceInfo> with C<CL_DEVICE_REFERENCE_COUNT_EXT> and returns the result.	1081	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_REFERENCE_COUNT_EXT> and returns the result.
981		1082
982	=item @device_partition_property_exts = $device->partition_style_ext	1083	=item @device_partition_property_exts = $device->partition_style_ext
983		1084
984	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PARTITION_STYLE_EXT> and returns the result.	1085	Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PARTITION_STYLE_EXT> and returns the result.
985		1086
986	=for gengetinfo end device	1087	=for gengetinfo end device
987		1088
988	=back	1089	=back
989		1090
990	=head2 THE OpenCL::Context CLASS	1091	=head2 THE OpenCL::Context CLASS
		1092
		1093	An OpenCL::Context is basically a container, or manager, for a number of
		1094	devices of a platform. It is used to create all sorts of secondary objects
		1095	such as buffers, queues, programs and so on.
		1096
		1097	All context creation functions and methods take a list of properties
		1098	(type-value pairs). All property values can be specified as integers -
		1099	some additionally support other types:
		1100
		1101	=over 4
		1102
		1103	=item OpenCL::CONTEXT_PLATFORM
		1104
		1105	Also accepts OpenCL::Platform objects.
		1106
		1107	=item OpenCL::GLX_DISPLAY_KHR
		1108
		1109	Also accepts C<undef>, in which case a deep and troubling hack is engaged
		1110	to find the current glx display (see L<GLX SUPPORT>).
		1111
		1112	=item OpenCL::GL_CONTEXT_KHR
		1113
		1114	Also accepts C<undef>, in which case a deep and troubling hack is engaged
		1115	to find the current glx context (see L<GLX SUPPORT>).
		1116
		1117	=back
991		1118
992	=over 4	1119	=over 4
993		1120
994	=item $prog = $ctx->build_program ($program, $options = "")	1121	=item $prog = $ctx->build_program ($program, $options = "")
995		1122
…		…
1043	=item $buf = $ctx->buffer ($flags, $len)	1170	=item $buf = $ctx->buffer ($flags, $len)
1044		1171
1045	Creates a new OpenCL::Buffer (actually OpenCL::BufferObj) object with the	1172	Creates a new OpenCL::Buffer (actually OpenCL::BufferObj) object with the
1046	given flags and octet-size.	1173	given flags and octet-size.
1047		1174
		1175	flags: OpenCL::MEM_READ_WRITE, OpenCL::MEM_WRITE_ONLY, OpenCL::MEM_READ_ONLY,
		1176	OpenCL::MEM_USE_HOST_PTR, OpenCL::MEM_ALLOC_HOST_PTR, OpenCL::MEM_COPY_HOST_PTR,
		1177	OpenCL::MEM_HOST_WRITE_ONLY, OpenCL::MEM_HOST_READ_ONLY, OpenCL::MEM_HOST_NO_ACCESS.
		1178
1048	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateBuffer.html>	1179	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateBuffer.html>
1049		1180
1050	=item $buf = $ctx->buffer_sv ($flags, $data)	1181	=item $buf = $ctx->buffer_sv ($flags, $data)
1051		1182
1052	Creates a new OpenCL::Buffer (actually OpenCL::BufferObj) object and	1183	Creates a new OpenCL::Buffer (actually OpenCL::BufferObj) object and
…		…
1055	=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)	1186	=item $img = $ctx->image ($self, $flags, $channel_order, $channel_type, $type, $width, $height, $depth = 0, $array_size = 0, $row_pitch = 0, $slice_pitch = 0, $num_mip_level = 0, $num_samples = 0, $*data = &PL_sv_undef)
1056		1187
1057	Creates a new OpenCL::Image object and optionally initialises it with	1188	Creates a new OpenCL::Image object and optionally initialises it with
1058	the given data values.	1189	the given data values.
1059		1190
		1191	channel_order: OpenCL::R, OpenCL::A, OpenCL::RG, OpenCL::RA, OpenCL::RGB,
		1192	OpenCL::RGBA, OpenCL::BGRA, OpenCL::ARGB, OpenCL::INTENSITY, OpenCL::LUMINANCE,
		1193	OpenCL::Rx, OpenCL::RGx, OpenCL::RGBx.
		1194
		1195	channel_type: OpenCL::SNORM_INT8, OpenCL::SNORM_INT16, OpenCL::UNORM_INT8,
		1196	OpenCL::UNORM_INT16, OpenCL::UNORM_SHORT_565, OpenCL::UNORM_SHORT_555,
		1197	OpenCL::UNORM_INT_101010, OpenCL::SIGNED_INT8, OpenCL::SIGNED_INT16,
		1198	OpenCL::SIGNED_INT32, OpenCL::UNSIGNED_INT8, OpenCL::UNSIGNED_INT16,
		1199	OpenCL::UNSIGNED_INT32, OpenCL::HALF_FLOAT, OpenCL::FLOAT.
		1200
		1201
		1202	type: OpenCL::MEM_OBJECT_BUFFER, OpenCL::MEM_OBJECT_IMAGE2D,
		1203	OpenCL::MEM_OBJECT_IMAGE3D, OpenCL::MEM_OBJECT_IMAGE2D_ARRAY,
		1204	OpenCL::MEM_OBJECT_IMAGE1D, OpenCL::MEM_OBJECT_IMAGE1D_ARRAY,
		1205	OpenCL::MEM_OBJECT_IMAGE1D_BUFFER.
		1206
1060	L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clCreateImage.html>	1207	L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clCreateImage.html>
1061		1208
1062	=item $img = $ctx->image2d ($flags, $channel_order, $channel_type, $width, $height, $row_pitch = 0, $data = undef)	1209	=item $img = $ctx->image2d ($flags, $channel_order, $channel_type, $width, $height, $row_pitch = 0, $data = undef)
1063		1210
1064	Creates a new OpenCL::Image2D object and optionally initialises it with	1211	Creates a new OpenCL::Image2D object and optionally initialises it with
…		…
1076	=item $buffer = $ctx->gl_buffer ($flags, $bufobj)	1223	=item $buffer = $ctx->gl_buffer ($flags, $bufobj)
1077		1224
1078	Creates a new OpenCL::Buffer (actually OpenCL::BufferObj) object that refers to the given	1225	Creates a new OpenCL::Buffer (actually OpenCL::BufferObj) object that refers to the given
1079	OpenGL buffer object.	1226	OpenGL buffer object.
1080		1227
		1228	flags: OpenCL::MEM_READ_WRITE, OpenCL::MEM_READ_ONLY, OpenCL::MEM_WRITE_ONLY.
		1229
1081	http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateFromGLBuffer.html	1230	http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateFromGLBuffer.html
1082		1231
1083	=item $img = $ctx->gl_texture ($flags, $target, $miplevel, $texture)	1232	=item $img = $ctx->gl_texture ($flags, $target, $miplevel, $texture)
1084		1233
1085	Creates a new OpenCL::Image object that refers to the given OpenGL	1234	Creates a new OpenCL::Image object that refers to the given OpenGL
1086	texture object or buffer.	1235	texture object or buffer.
1087		1236
		1237	target: GL_TEXTURE_1D, GL_TEXTURE_1D_ARRAY, GL_TEXTURE_BUFFER,
		1238	GL_TEXTURE_2D, GL_TEXTURE_2D_ARRAY, GL_TEXTURE_3D,
		1239	GL_TEXTURE_CUBE_MAP_POSITIVE_X, GL_TEXTURE_CUBE_MAP_POSITIVE_Y,
		1240	GL_TEXTURE_CUBE_MAP_POSITIVE_Z, GL_TEXTURE_CUBE_MAP_NEGATIVE_X,
		1241	GL_TEXTURE_CUBE_MAP_NEGATIVE_Y, GL_TEXTURE_CUBE_MAP_NEGATIVE_Z,
		1242	GL_TEXTURE_RECTANGLE/GL_TEXTURE_RECTANGLE_ARB.
		1243
1088	http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clCreateFromGLTexture.html	1244	http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clCreateFromGLTexture.html
1089		1245
1090	=item $img = $ctx->gl_texture2d ($flags, $target, $miplevel, $texture)	1246	=item $img = $ctx->gl_texture2d ($flags, $target, $miplevel, $texture)
1091		1247
1092	Creates a new OpenCL::Image2D object that refers to the given OpenGL	1248	Creates a new OpenCL::Image2D object that refers to the given OpenGL
…		…
1117		1273
1118	=item $sampler = $ctx->sampler ($normalized_coords, $addressing_mode, $filter_mode)	1274	=item $sampler = $ctx->sampler ($normalized_coords, $addressing_mode, $filter_mode)
1119		1275
1120	Creates a new OpenCL::Sampler object.	1276	Creates a new OpenCL::Sampler object.
1121		1277
		1278	addressing_mode: OpenCL::ADDRESS_NONE, OpenCL::ADDRESS_CLAMP_TO_EDGE,
		1279	OpenCL::ADDRESS_CLAMP, OpenCL::ADDRESS_REPEAT, OpenCL::ADDRESS_MIRRORED_REPEAT.
		1280
		1281	filter_mode: OpenCL::FILTER_NEAREST, OpenCL::FILTER_LINEAR.
		1282
1122	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateSampler.html>	1283	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateSampler.html>
1123		1284
1124	=item $program = $ctx->program_with_source ($string)	1285	=item $program = $ctx->program_with_source ($string)
1125		1286
1126	Creates a new OpenCL::Program object from the given source code.	1287	Creates a new OpenCL::Program object from the given source code.
1127		1288
1128	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateProgramWithSource.html>	1289	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateProgramWithSource.html>
1129		1290
		1291	=item ($program, \@status) = $ctx->program_with_binary (\@devices, \@binaries)
		1292
		1293	Creates a new OpenCL::Program object from the given binaries.
		1294
		1295	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateProgramWithBinary.html>
		1296
		1297	Example: clone an existing program object that contains a successfully
		1298	compiled program, no matter how useless this is.
		1299
		1300	my $clone = $ctx->program_with_binary ([$prog->devices], [$prog->binaries]);
		1301
		1302	=item $program = $ctx->program_with_built_in_kernels (\@devices, $kernel_names)
		1303
		1304	Creates a new OpenCL::Program object from the given built-in kernel names.
		1305
		1306	L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clCreateProgramWithBuiltInKernels.html>
		1307
		1308	=item $program = $ctx->link_program (\@devices, $options, \@programs, $cb->($program) = undef)
		1309
		1310	Links all (already compiled) program objects specified in C<@programs>
		1311	together and returns a new OpenCL::Program object with the result.
		1312
		1313	L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clLinkProgram.html>
		1314
1130	=item $packed_value = $ctx->info ($name)	1315	=item $packed_value = $ctx->info ($name)
1131		1316
1132	See C<< $platform->info >> for details.	1317	See C<< $platform->info >> for details.
1133		1318
1134	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetContextInfo.html>	1319	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetContextInfo.html>
1135		1320
1136	=for gengetinfo begin context	1321	=for gengetinfo begin context
1137		1322
1138	=item $uint = $context->reference_count	1323	=item $uint = $context->reference_count
1139		1324
1140	Calls C<clGetContextInfo> with C<CL_CONTEXT_REFERENCE_COUNT> and returns the result.	1325	Calls C<clGetContextInfo> with C<OpenCL::CONTEXT_REFERENCE_COUNT> and returns the result.
1141		1326
1142	=item @devices = $context->devices	1327	=item @devices = $context->devices
1143		1328
1144	Calls C<clGetContextInfo> with C<CL_CONTEXT_DEVICES> and returns the result.	1329	Calls C<clGetContextInfo> with C<OpenCL::CONTEXT_DEVICES> and returns the result.
1145		1330
1146	=item @property_ints = $context->properties	1331	=item @property_ints = $context->properties
1147		1332
1148	Calls C<clGetContextInfo> with C<CL_CONTEXT_PROPERTIES> and returns the result.	1333	Calls C<clGetContextInfo> with C<OpenCL::CONTEXT_PROPERTIES> and returns the result.
1149		1334
1150	=item $uint = $context->num_devices	1335	=item $uint = $context->num_devices
1151		1336
1152	Calls C<clGetContextInfo> with C<CL_CONTEXT_NUM_DEVICES> and returns the result.	1337	Calls C<clGetContextInfo> with C<OpenCL::CONTEXT_NUM_DEVICES> and returns the result.
1153		1338
1154	=for gengetinfo end context	1339	=for gengetinfo end context
1155		1340
1156	=back	1341	=back
1157		1342
…		…
1204		1389
1205	=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...)	1390	=item $ev = $queue->write_buffer_rect (OpenCL::Memory buf, cl_bool blocking, $buf_x, $buf_y, $buf_z, $host_x, $host_y, $host_z, $width, $height, $depth, $buf_row_pitch, $buf_slice_pitch, $host_row_pitch, $host_slice_pitch, $data, $wait_events...)
1206		1391
1207	http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWriteBufferRect.html	1392	http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWriteBufferRect.html
1208		1393
		1394	=item $ev = $queue->copy_buffer_to_image ($src_buffer, $dst_image, $src_offset, $dst_x, $dst_y, $dst_z, $width, $height, $depth, $wait_events...)
		1395
		1396	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyBufferToImage.html>
		1397
1209	=item $ev = $queue->read_image ($src, $blocking, $x, $y, $z, $width, $height, $depth, $row_pitch, $slice_pitch, $data, $wait_events...)	1398	=item $ev = $queue->read_image ($src, $blocking, $x, $y, $z, $width, $height, $depth, $row_pitch, $slice_pitch, $data, $wait_events...)
1210		1399
1211	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyBufferRect.html>	1400	C<$row_pitch> (and C<$slice_pitch>) can be C<0>, in which case the OpenCL
1212		1401	module uses the image width (and height) to supply default values.
1213	=item $ev = $queue->copy_buffer_to_image ($src_buffer, $dst_image, $src_offset, $dst_x, $dst_y, $dst_z, $width, $height, $depth, $wait_events...)
1214		1402
1215	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReadImage.html>	1403	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReadImage.html>
1216		1404
1217	=item $ev = $queue->write_image ($src, $blocking, $x, $y, $z, $width, $height, $depth, $row_pitch, $slice_pitch, $data, $wait_events...)	1405	=item $ev = $queue->write_image ($src, $blocking, $x, $y, $z, $width, $height, $depth, $row_pitch, $slice_pitch, $data, $wait_events...)
1218		1406
		1407	C<$row_pitch> (and C<$slice_pitch>) can be C<0>, in which case the OpenCL
		1408	module uses the image width (and height) to supply default values.
1219	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWriteImage.html>	1409	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWriteImage.html>
1220		1410
1221	=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...)	1411	=item $ev = $queue->copy_image ($src_image, $dst_image, $src_x, $src_y, $src_z, $dst_x, $dst_y, $dst_z, $width, $height, $depth, $wait_events...)
1222		1412
1223	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyImage.html>	1413	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyImage.html>
…		…
1268	reference to an array of local work sizes, with the same number of	1458	reference to an array of local work sizes, with the same number of
1269	elements as \@global_work_size.	1459	elements as \@global_work_size.
1270		1460
1271	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueNDRangeKernel.html>	1461	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueNDRangeKernel.html>
1272		1462
		1463	=item $ev = $queue->migrate_mem_objects (\@mem_objects, $flags, $wait_events...)
		1464
		1465	Migrates a number of OpenCL::Memory objects to or from the device.
		1466
		1467	flags: OpenCL::MIGRATE_MEM_OBJECT_HOST, OpenCL::MIGRATE_MEM_OBJECT_CONTENT_UNDEFINED
		1468
		1469	L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clEnqueueMigrateMemObjects.html>
		1470
1273	=item $ev = $queue->acquire_gl_objects ([object, ...], $wait_events...)	1471	=item $ev = $queue->acquire_gl_objects ([object, ...], $wait_events...)
1274		1472
1275	Enqueues a list (an array-ref of OpenCL::Memory objects) to be acquired	1473	Enqueues a list (an array-ref of OpenCL::Memory objects) to be acquired
1276	for subsequent OpenCL usage.	1474	for subsequent OpenCL usage.
1277		1475
…		…
1312		1510
1313	=for gengetinfo begin command_queue	1511	=for gengetinfo begin command_queue
1314		1512
1315	=item $ctx = $command_queue->context	1513	=item $ctx = $command_queue->context
1316		1514
1317	Calls C<clGetCommandQueueInfo> with C<CL_QUEUE_CONTEXT> and returns the result.	1515	Calls C<clGetCommandQueueInfo> with C<OpenCL::QUEUE_CONTEXT> and returns the result.
1318		1516
1319	=item $device = $command_queue->device	1517	=item $device = $command_queue->device
1320		1518
1321	Calls C<clGetCommandQueueInfo> with C<CL_QUEUE_DEVICE> and returns the result.	1519	Calls C<clGetCommandQueueInfo> with C<OpenCL::QUEUE_DEVICE> and returns the result.
1322		1520
1323	=item $uint = $command_queue->reference_count	1521	=item $uint = $command_queue->reference_count
1324		1522
1325	Calls C<clGetCommandQueueInfo> with C<CL_QUEUE_REFERENCE_COUNT> and returns the result.	1523	Calls C<clGetCommandQueueInfo> with C<OpenCL::QUEUE_REFERENCE_COUNT> and returns the result.
1326		1524
1327	=item $command_queue_properties = $command_queue->properties	1525	=item $command_queue_properties = $command_queue->properties
1328		1526
1329	Calls C<clGetCommandQueueInfo> with C<CL_QUEUE_PROPERTIES> and returns the result.	1527	Calls C<clGetCommandQueueInfo> with C<OpenCL::QUEUE_PROPERTIES> and returns the result.
1330		1528
1331	=for gengetinfo end command_queue	1529	=for gengetinfo end command_queue
		1530
		1531	=back
		1532
		1533	=head3 MEMORY MAPPED BUFFERS
		1534
		1535	OpenCL allows you to map buffers and images to host memory (read: perl
		1536	scalars). This is done much like reading or copying a buffer, by enqueuing
		1537	a map or unmap operation on the command queue.
		1538
		1539	The map operations return an C<OpenCL::Mapped> object - see L<THE
		1540	OpenCL::Mapped CLASS> section for details on what to do with these
		1541	objects.
		1542
		1543	The object will be unmapped automatically when the mapped object is
		1544	destroyed (you can use a barrier to make sure the unmap has finished,
		1545	before using the buffer in a kernel), but you can also enqueue an unmap
		1546	operation manually.
		1547
		1548	=over 4
		1549
		1550	=item $mapped_buffer = $queue->map_buffer ($buf, $blocking=1, $map_flags=OpenCL::MAP_READ\|OpenCL::MAP_WRITE, $offset=0, $size=undef, $wait_events...)
		1551
		1552	Maps the given buffer into host memory and returns an
		1553	C<OpenCL::MappedBuffer> object. If C<$size> is specified as undef, then
		1554	the map will extend to the end of the buffer.
		1555
		1556	map_flags: OpenCL::MAP_READ, OpenCL::MAP_WRITE, OpenCL::MAP_WRITE_INVALIDATE_REGION.
		1557
		1558	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueMapBuffer.html>
		1559
		1560	Example: map the buffer $buf fully and replace the first 4 bytes by "abcd", then unmap.
		1561
		1562	{
		1563	my $mapped = $queue->map_buffer ($buf, 1, OpenCL::MAP_WRITE);
		1564	substr $$mapped, 0, 4, "abcd";
		1565	} # asynchronously unmap because $mapped is destroyed
		1566
		1567	=item $mapped_image = $queue->map_image ($img, $blocking=1, $map_flags=OpenCL::MAP_READ\|OpenCL::MAP_WRITE, $x=0, $y=0, $z=0, $width=undef, $height=undef, $depth=undef, $wait_events...)
		1568
		1569	Maps the given image area into host memory and return an
		1570	C<OpenCL::MappedImage> object.
		1571
		1572	If any of C<$width>, C<$height> and/or C<$depth> are C<undef> then they
		1573	will be replaced by the maximum possible value.
		1574
		1575	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueMapImage.html>
		1576
		1577	Example: map an image (with OpenCL::UNSIGNED_INT8 channel type) and set
		1578	the first channel of the leftmost column to 5, then explicitly unmap
		1579	it. You are not necessarily meant to do it this way, this example just
		1580	shows you the accessors to use :)
		1581
		1582	my $mapped = $queue->map_image ($image, 1, OpenCL::MAP_WRITE);
		1583
		1584	$mapped->set ($_ * $mapped->row_pitch, pack "C", 5)
		1585	for 0..$image->height;
		1586
		1587	$mapped->unmap;.
		1588	$mapped->wait; # only needed for out of order queues normally
		1589
		1590	=item $ev = $queue->unmap ($mapped, $wait_events...)
		1591
		1592	Unmaps the data from host memory. You must not call any methods that
		1593	modify the data, or modify the data scalar directly, after calling this
		1594	method.
		1595
		1596	The mapped event object will always be passed as part of the
		1597	$wait_events. The mapped event object will be replaced by the new event
		1598	object that this request creates.
1332		1599
1333	=back	1600	=back
1334		1601
1335	=head2 THE OpenCL::Memory CLASS	1602	=head2 THE OpenCL::Memory CLASS
1336		1603
…		…
1347		1614
1348	=for gengetinfo begin mem	1615	=for gengetinfo begin mem
1349		1616
1350	=item $mem_object_type = $mem->type	1617	=item $mem_object_type = $mem->type
1351		1618
1352	Calls C<clGetMemObjectInfo> with C<CL_MEM_TYPE> and returns the result.	1619	Calls C<clGetMemObjectInfo> with C<OpenCL::MEM_TYPE> and returns the result.
1353		1620
1354	=item $mem_flags = $mem->flags	1621	=item $mem_flags = $mem->flags
1355		1622
1356	Calls C<clGetMemObjectInfo> with C<CL_MEM_FLAGS> and returns the result.	1623	Calls C<clGetMemObjectInfo> with C<OpenCL::MEM_FLAGS> and returns the result.
1357		1624
1358	=item $int = $mem->size	1625	=item $int = $mem->size
1359		1626
1360	Calls C<clGetMemObjectInfo> with C<CL_MEM_SIZE> and returns the result.	1627	Calls C<clGetMemObjectInfo> with C<OpenCL::MEM_SIZE> and returns the result.
1361		1628
1362	=item $ptr_value = $mem->host_ptr	1629	=item $ptr_value = $mem->host_ptr
1363		1630
1364	Calls C<clGetMemObjectInfo> with C<CL_MEM_HOST_PTR> and returns the result.	1631	Calls C<clGetMemObjectInfo> with C<OpenCL::MEM_HOST_PTR> and returns the result.
1365		1632
1366	=item $uint = $mem->map_count	1633	=item $uint = $mem->map_count
1367		1634
1368	Calls C<clGetMemObjectInfo> with C<CL_MEM_MAP_COUNT> and returns the result.	1635	Calls C<clGetMemObjectInfo> with C<OpenCL::MEM_MAP_COUNT> and returns the result.
1369		1636
1370	=item $uint = $mem->reference_count	1637	=item $uint = $mem->reference_count
1371		1638
1372	Calls C<clGetMemObjectInfo> with C<CL_MEM_REFERENCE_COUNT> and returns the result.	1639	Calls C<clGetMemObjectInfo> with C<OpenCL::MEM_REFERENCE_COUNT> and returns the result.
1373		1640
1374	=item $ctx = $mem->context	1641	=item $ctx = $mem->context
1375		1642
1376	Calls C<clGetMemObjectInfo> with C<CL_MEM_CONTEXT> and returns the result.	1643	Calls C<clGetMemObjectInfo> with C<OpenCL::MEM_CONTEXT> and returns the result.
1377		1644
1378	=item $mem = $mem->associated_memobject	1645	=item $mem = $mem->associated_memobject
1379		1646
1380	Calls C<clGetMemObjectInfo> with C<CL_MEM_ASSOCIATED_MEMOBJECT> and returns the result.	1647	Calls C<clGetMemObjectInfo> with C<OpenCL::MEM_ASSOCIATED_MEMOBJECT> and returns the result.
1381		1648
1382	=item $int = $mem->offset	1649	=item $int = $mem->offset
1383		1650
1384	Calls C<clGetMemObjectInfo> with C<CL_MEM_OFFSET> and returns the result.	1651	Calls C<clGetMemObjectInfo> with C<OpenCL::MEM_OFFSET> and returns the result.
1385		1652
1386	=for gengetinfo end mem	1653	=for gengetinfo end mem
1387		1654
1388	=item ($type, $name) = $mem->gl_object_info	1655	=item ($type, $name) = $mem->gl_object_info
1389		1656
…		…
1441		1708
1442	=for gengetinfo begin image	1709	=for gengetinfo begin image
1443		1710
1444	=item $int = $image->element_size	1711	=item $int = $image->element_size
1445		1712
1446	Calls C<clGetImageInfo> with C<CL_IMAGE_ELEMENT_SIZE> and returns the result.	1713	Calls C<clGetImageInfo> with C<OpenCL::IMAGE_ELEMENT_SIZE> and returns the result.
1447		1714
1448	=item $int = $image->row_pitch	1715	=item $int = $image->row_pitch
1449		1716
1450	Calls C<clGetImageInfo> with C<CL_IMAGE_ROW_PITCH> and returns the result.	1717	Calls C<clGetImageInfo> with C<OpenCL::IMAGE_ROW_PITCH> and returns the result.
1451		1718
1452	=item $int = $image->slice_pitch	1719	=item $int = $image->slice_pitch
1453		1720
1454	Calls C<clGetImageInfo> with C<CL_IMAGE_SLICE_PITCH> and returns the result.	1721	Calls C<clGetImageInfo> with C<OpenCL::IMAGE_SLICE_PITCH> and returns the result.
1455		1722
1456	=item $int = $image->width	1723	=item $int = $image->width
1457		1724
1458	Calls C<clGetImageInfo> with C<CL_IMAGE_WIDTH> and returns the result.	1725	Calls C<clGetImageInfo> with C<OpenCL::IMAGE_WIDTH> and returns the result.
1459		1726
1460	=item $int = $image->height	1727	=item $int = $image->height
1461		1728
1462	Calls C<clGetImageInfo> with C<CL_IMAGE_HEIGHT> and returns the result.	1729	Calls C<clGetImageInfo> with C<OpenCL::IMAGE_HEIGHT> and returns the result.
1463		1730
1464	=item $int = $image->depth	1731	=item $int = $image->depth
1465		1732
1466	Calls C<clGetImageInfo> with C<CL_IMAGE_DEPTH> and returns the result.	1733	Calls C<clGetImageInfo> with C<OpenCL::IMAGE_DEPTH> and returns the result.
1467		1734
1468	=for gengetinfo end image	1735	=for gengetinfo end image
1469		1736
1470	=for gengetinfo begin gl_texture	1737	=for gengetinfo begin gl_texture
1471		1738
1472	=item $GLenum = $gl_texture->target	1739	=item $GLenum = $gl_texture->target
1473		1740
1474	Calls C<clGetGLTextureInfo> with C<CL_GL_TEXTURE_TARGET> and returns the result.	1741	Calls C<clGetGLTextureInfo> with C<OpenCL::GL_TEXTURE_TARGET> and returns the result.
1475		1742
1476	=item $GLint = $gl_texture->gl_mipmap_level	1743	=item $GLint = $gl_texture->gl_mipmap_level
1477		1744
1478	Calls C<clGetGLTextureInfo> with C<CL_GL_MIPMAP_LEVEL> and returns the result.	1745	Calls C<clGetGLTextureInfo> with C<OpenCL::GL_MIPMAP_LEVEL> and returns the result.
1479		1746
1480	=for gengetinfo end gl_texture	1747	=for gengetinfo end gl_texture
1481		1748
1482	=back	1749	=back
1483		1750
…		…
1493		1760
1494	=for gengetinfo begin sampler	1761	=for gengetinfo begin sampler
1495		1762
1496	=item $uint = $sampler->reference_count	1763	=item $uint = $sampler->reference_count
1497		1764
1498	Calls C<clGetSamplerInfo> with C<CL_SAMPLER_REFERENCE_COUNT> and returns the result.	1765	Calls C<clGetSamplerInfo> with C<OpenCL::SAMPLER_REFERENCE_COUNT> and returns the result.
1499		1766
1500	=item $ctx = $sampler->context	1767	=item $ctx = $sampler->context
1501		1768
1502	Calls C<clGetSamplerInfo> with C<CL_SAMPLER_CONTEXT> and returns the result.	1769	Calls C<clGetSamplerInfo> with C<OpenCL::SAMPLER_CONTEXT> and returns the result.
1503		1770
1504	=item $addressing_mode = $sampler->normalized_coords	1771	=item $addressing_mode = $sampler->normalized_coords
1505		1772
1506	Calls C<clGetSamplerInfo> with C<CL_SAMPLER_NORMALIZED_COORDS> and returns the result.	1773	Calls C<clGetSamplerInfo> with C<OpenCL::SAMPLER_NORMALIZED_COORDS> and returns the result.
1507		1774
1508	=item $filter_mode = $sampler->addressing_mode	1775	=item $filter_mode = $sampler->addressing_mode
1509		1776
1510	Calls C<clGetSamplerInfo> with C<CL_SAMPLER_ADDRESSING_MODE> and returns the result.	1777	Calls C<clGetSamplerInfo> with C<OpenCL::SAMPLER_ADDRESSING_MODE> and returns the result.
1511		1778
1512	=item $boolean = $sampler->filter_mode	1779	=item $boolean = $sampler->filter_mode
1513		1780
1514	Calls C<clGetSamplerInfo> with C<CL_SAMPLER_FILTER_MODE> and returns the result.	1781	Calls C<clGetSamplerInfo> with C<OpenCL::SAMPLER_FILTER_MODE> and returns the result.
1515		1782
1516	=for gengetinfo end sampler	1783	=for gengetinfo end sampler
1517		1784
1518	=back	1785	=back
1519		1786
…		…
1537	not so. So best make sure you don't pass in invalid values.	1804	not so. So best make sure you don't pass in invalid values.
1538		1805
1539	Some implementations fail with C<OpenCL::INVALID_BINARY> when the	1806	Some implementations fail with C<OpenCL::INVALID_BINARY> when the
1540	compilation state is successful but some later stage fails.	1807	compilation state is successful but some later stage fails.
1541		1808
		1809	options: C<-D name>, C<-D name=definition>, C<-I dir>,
		1810	C<-cl-single-precision-constant>, C<-cl-denorms-are-zero>,
		1811	C<-cl-fp32-correctly-rounded-divide-sqrt>, C<-cl-opt-disable>,
		1812	C<-cl-mad-enable>, C<-cl-no-signed-zeros>, C<-cl-unsafe-math-optimizations>,
		1813	C<-cl-finite-math-only>, C<-cl-fast-relaxed-math>,
		1814	C<-w>, C<-Werror>, C<-cl-std=CL1.1/CL1.2>, C<-cl-kernel-arg-info>,
		1815	C<-create-library>, C<-enable-link-options>.
		1816
		1817	build_status: OpenCL::BUILD_SUCCESS, OpenCL::BUILD_NONE,
		1818	OpenCL::BUILD_ERROR, OpenCL::BUILD_IN_PROGRESS.
		1819
1542	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clBuildProgram.html>	1820	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clBuildProgram.html>
1543		1821
1544	=item $program->build_async (\@devices = undef, $options = "", $cb->($program) = undef)	1822	=item $program->build_async (\@devices = undef, $options = "", $cb->($program) = undef)
1545		1823
1546	Similar to C<< ->build >>, except it starts a thread, and never fails (you	1824	Similar to C<< ->build >>, except it starts a thread, and never fails (you
1547	need to check the compilation status form the callback, or by polling).	1825	need to check the compilation status form the callback, or by polling).
1548		1826
		1827	=item $program->compile (\@devices = undef, $options = "", \%headers = undef, $cb->($program) = undef)
		1828
		1829	Compiles the given program for the given devices (or all devices if
		1830	undef). If C<$headers> is given, it must be a hashref with include name =>
		1831	OpenCL::Program pairs.
		1832
		1833	L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clCompileProgram.html>
		1834
1549	=item $packed_value = $program->build_info ($device, $name)	1835	=item $packed_value = $program->build_info ($device, $name)
1550		1836
1551	Similar to C<< $platform->info >>, but returns build info for a previous	1837	Similar to C<< $platform->info >>, but returns build info for a previous
1552	build attempt for the given device.	1838	build attempt for the given device.
1553		1839
…		…
1568		1854
1569	=for gengetinfo begin program_build	1855	=for gengetinfo begin program_build
1570		1856
1571	=item $build_status = $program->build_status ($device)	1857	=item $build_status = $program->build_status ($device)
1572		1858
1573	Calls C<clGetProgramBuildInfo> with C<CL_PROGRAM_BUILD_STATUS> and returns the result.	1859	Calls C<clGetProgramBuildInfo> with C<OpenCL::PROGRAM_BUILD_STATUS> and returns the result.
1574		1860
1575	=item $string = $program->build_options ($device)	1861	=item $string = $program->build_options ($device)
1576		1862
1577	Calls C<clGetProgramBuildInfo> with C<CL_PROGRAM_BUILD_OPTIONS> and returns the result.	1863	Calls C<clGetProgramBuildInfo> with C<OpenCL::PROGRAM_BUILD_OPTIONS> and returns the result.
1578		1864
1579	=item $string = $program->build_log ($device)	1865	=item $string = $program->build_log ($device)
1580		1866
1581	Calls C<clGetProgramBuildInfo> with C<CL_PROGRAM_BUILD_LOG> and returns the result.	1867	Calls C<clGetProgramBuildInfo> with C<OpenCL::PROGRAM_BUILD_LOG> and returns the result.
1582		1868
1583	=for gengetinfo end program_build	1869	=for gengetinfo end program_build
1584		1870
1585	=item $packed_value = $program->info ($name)	1871	=item $packed_value = $program->info ($name)
1586		1872
…		…
1590		1876
1591	=for gengetinfo begin program	1877	=for gengetinfo begin program
1592		1878
1593	=item $uint = $program->reference_count	1879	=item $uint = $program->reference_count
1594		1880
1595	Calls C<clGetProgramInfo> with C<CL_PROGRAM_REFERENCE_COUNT> and returns the result.	1881	Calls C<clGetProgramInfo> with C<OpenCL::PROGRAM_REFERENCE_COUNT> and returns the result.
1596		1882
1597	=item $ctx = $program->context	1883	=item $ctx = $program->context
1598		1884
1599	Calls C<clGetProgramInfo> with C<CL_PROGRAM_CONTEXT> and returns the result.	1885	Calls C<clGetProgramInfo> with C<OpenCL::PROGRAM_CONTEXT> and returns the result.
1600		1886
1601	=item $uint = $program->num_devices	1887	=item $uint = $program->num_devices
1602		1888
1603	Calls C<clGetProgramInfo> with C<CL_PROGRAM_NUM_DEVICES> and returns the result.	1889	Calls C<clGetProgramInfo> with C<OpenCL::PROGRAM_NUM_DEVICES> and returns the result.
1604		1890
1605	=item @devices = $program->devices	1891	=item @devices = $program->devices
1606		1892
1607	Calls C<clGetProgramInfo> with C<CL_PROGRAM_DEVICES> and returns the result.	1893	Calls C<clGetProgramInfo> with C<OpenCL::PROGRAM_DEVICES> and returns the result.
1608		1894
1609	=item $string = $program->source	1895	=item $string = $program->source
1610		1896
1611	Calls C<clGetProgramInfo> with C<CL_PROGRAM_SOURCE> and returns the result.	1897	Calls C<clGetProgramInfo> with C<OpenCL::PROGRAM_SOURCE> and returns the result.
1612		1898
1613	=item @ints = $program->binary_sizes	1899	=item @ints = $program->binary_sizes
1614		1900
1615	Calls C<clGetProgramInfo> with C<CL_PROGRAM_BINARY_SIZES> and returns the result.	1901	Calls C<clGetProgramInfo> with C<OpenCL::PROGRAM_BINARY_SIZES> and returns the result.
1616		1902
1617	=for gengetinfo end program	1903	=for gengetinfo end program
1618		1904
1619	=item @blobs = $program->binaries	1905	=item @blobs = $program->binaries
1620		1906
…		…
1641		1927
1642	=for gengetinfo begin kernel	1928	=for gengetinfo begin kernel
1643		1929
1644	=item $string = $kernel->function_name	1930	=item $string = $kernel->function_name
1645		1931
1646	Calls C<clGetKernelInfo> with C<CL_KERNEL_FUNCTION_NAME> and returns the result.	1932	Calls C<clGetKernelInfo> with C<OpenCL::KERNEL_FUNCTION_NAME> and returns the result.
1647		1933
1648	=item $uint = $kernel->num_args	1934	=item $uint = $kernel->num_args
1649		1935
1650	Calls C<clGetKernelInfo> with C<CL_KERNEL_NUM_ARGS> and returns the result.	1936	Calls C<clGetKernelInfo> with C<OpenCL::KERNEL_NUM_ARGS> and returns the result.
1651		1937
1652	=item $uint = $kernel->reference_count	1938	=item $uint = $kernel->reference_count
1653		1939
1654	Calls C<clGetKernelInfo> with C<CL_KERNEL_REFERENCE_COUNT> and returns the result.	1940	Calls C<clGetKernelInfo> with C<OpenCL::KERNEL_REFERENCE_COUNT> and returns the result.
1655		1941
1656	=item $ctx = $kernel->context	1942	=item $ctx = $kernel->context
1657		1943
1658	Calls C<clGetKernelInfo> with C<CL_KERNEL_CONTEXT> and returns the result.	1944	Calls C<clGetKernelInfo> with C<OpenCL::KERNEL_CONTEXT> and returns the result.
1659		1945
1660	=item $program = $kernel->program	1946	=item $program = $kernel->program
1661		1947
1662	Calls C<clGetKernelInfo> with C<CL_KERNEL_PROGRAM> and returns the result.	1948	Calls C<clGetKernelInfo> with C<OpenCL::KERNEL_PROGRAM> and returns the result.
1663		1949
1664	=for gengetinfo end kernel	1950	=for gengetinfo end kernel
1665		1951
1666	=item $packed_value = $kernel->work_group_info ($device, $name)	1952	=item $packed_value = $kernel->work_group_info ($device, $name)
1667		1953
1668	See C<< $platform->info >> for details.	1954	See C<< $platform->info >> for details.
1669		1955
1670	The reason this method is not called C<info> is that there already is an
1671	C<< ->info >> method.
1672
1673	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetKernelWorkGroupInfo.html>	1956	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetKernelWorkGroupInfo.html>
1674		1957
1675	=for gengetinfo begin kernel_work_group	1958	=for gengetinfo begin kernel_work_group
1676		1959
1677	=item $int = $kernel->work_group_size ($device)	1960	=item $int = $kernel->work_group_size ($device)
1678		1961
1679	Calls C<clGetKernelWorkGroupInfo> with C<CL_KERNEL_WORK_GROUP_SIZE> and returns the result.	1962	Calls C<clGetKernelWorkGroupInfo> with C<OpenCL::KERNEL_WORK_GROUP_SIZE> and returns the result.
1680		1963
1681	=item @ints = $kernel->compile_work_group_size ($device)	1964	=item @ints = $kernel->compile_work_group_size ($device)
1682		1965
1683	Calls C<clGetKernelWorkGroupInfo> with C<CL_KERNEL_COMPILE_WORK_GROUP_SIZE> and returns the result.	1966	Calls C<clGetKernelWorkGroupInfo> with C<OpenCL::KERNEL_COMPILE_WORK_GROUP_SIZE> and returns the result.
1684		1967
1685	=item $ulong = $kernel->local_mem_size ($device)	1968	=item $ulong = $kernel->local_mem_size ($device)
1686		1969
1687	Calls C<clGetKernelWorkGroupInfo> with C<CL_KERNEL_LOCAL_MEM_SIZE> and returns the result.	1970	Calls C<clGetKernelWorkGroupInfo> with C<OpenCL::KERNEL_LOCAL_MEM_SIZE> and returns the result.
1688		1971
1689	=item $int = $kernel->preferred_work_group_size_multiple ($device)	1972	=item $int = $kernel->preferred_work_group_size_multiple ($device)
1690		1973
1691	Calls C<clGetKernelWorkGroupInfo> with C<CL_KERNEL_PREFERRED_WORK_GROUP_SIZE_MULTIPLE> and returns the result.	1974	Calls C<clGetKernelWorkGroupInfo> with C<OpenCL::KERNEL_PREFERRED_WORK_GROUP_SIZE_MULTIPLE> and returns the result.
1692		1975
1693	=item $ulong = $kernel->private_mem_size ($device)	1976	=item $ulong = $kernel->private_mem_size ($device)
1694		1977
1695	Calls C<clGetKernelWorkGroupInfo> with C<CL_KERNEL_PRIVATE_MEM_SIZE> and returns the result.	1978	Calls C<clGetKernelWorkGroupInfo> with C<OpenCL::KERNEL_PRIVATE_MEM_SIZE> and returns the result.
1696		1979
1697	=for gengetinfo end kernel_work_group	1980	=for gengetinfo end kernel_work_group
		1981
		1982	=item $packed_value = $kernel->arg_info ($idx, $name)
		1983
		1984	See C<< $platform->info >> for details.
		1985
		1986	L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clGetKernelArgInfo.html>
		1987
		1988	=for gengetinfo begin kernel_arg
		1989
		1990	=item $kernel_arg_address_qualifier = $kernel->arg_address_qualifier ($idx)
		1991
		1992	Calls C<clGetKernelArgInfo> with C<OpenCL::KERNEL_ARG_ADDRESS_QUALIFIER> and returns the result.
		1993
		1994	=item $kernel_arg_access_qualifier = $kernel->arg_access_qualifier ($idx)
		1995
		1996	Calls C<clGetKernelArgInfo> with C<OpenCL::KERNEL_ARG_ACCESS_QUALIFIER> and returns the result.
		1997
		1998	=item $string = $kernel->arg_type_name ($idx)
		1999
		2000	Calls C<clGetKernelArgInfo> with C<OpenCL::KERNEL_ARG_TYPE_NAME> and returns the result.
		2001
		2002	=item $kernel_arg_type_qualifier = $kernel->arg_type_qualifier ($idx)
		2003
		2004	Calls C<clGetKernelArgInfo> with C<OpenCL::KERNEL_ARG_TYPE_QUALIFIER> and returns the result.
		2005
		2006	=item $string = $kernel->arg_name ($idx)
		2007
		2008	Calls C<clGetKernelArgInfo> with C<OpenCL::KERNEL_ARG_NAME> and returns the result.
		2009
		2010	=for gengetinfo end kernel_arg
1698		2011
1699	=item $kernel->setf ($format, ...)	2012	=item $kernel->setf ($format, ...)
1700		2013
1701	Sets the arguments of a kernel. Since OpenCL 1.1 doesn't have a generic	2014	Sets the arguments of a kernel. Since OpenCL 1.1 doesn't have a generic
1702	way to set arguments (and with OpenCL 1.2 it might be rather slow), you	2015	way to set arguments (and with OpenCL 1.2 it might be rather slow), you
…		…
1814		2127
1815	=for gengetinfo begin event	2128	=for gengetinfo begin event
1816		2129
1817	=item $queue = $event->command_queue	2130	=item $queue = $event->command_queue
1818		2131
1819	Calls C<clGetEventInfo> with C<CL_EVENT_COMMAND_QUEUE> and returns the result.	2132	Calls C<clGetEventInfo> with C<OpenCL::EVENT_COMMAND_QUEUE> and returns the result.
1820		2133
1821	=item $command_type = $event->command_type	2134	=item $command_type = $event->command_type
1822		2135
1823	Calls C<clGetEventInfo> with C<CL_EVENT_COMMAND_TYPE> and returns the result.	2136	Calls C<clGetEventInfo> with C<OpenCL::EVENT_COMMAND_TYPE> and returns the result.
1824		2137
1825	=item $uint = $event->reference_count	2138	=item $uint = $event->reference_count
1826		2139
1827	Calls C<clGetEventInfo> with C<CL_EVENT_REFERENCE_COUNT> and returns the result.	2140	Calls C<clGetEventInfo> with C<OpenCL::EVENT_REFERENCE_COUNT> and returns the result.
1828		2141
1829	=item $uint = $event->command_execution_status	2142	=item $uint = $event->command_execution_status
1830		2143
1831	Calls C<clGetEventInfo> with C<CL_EVENT_COMMAND_EXECUTION_STATUS> and returns the result.	2144	Calls C<clGetEventInfo> with C<OpenCL::EVENT_COMMAND_EXECUTION_STATUS> and returns the result.
1832		2145
1833	=item $ctx = $event->context	2146	=item $ctx = $event->context
1834		2147
1835	Calls C<clGetEventInfo> with C<CL_EVENT_CONTEXT> and returns the result.	2148	Calls C<clGetEventInfo> with C<OpenCL::EVENT_CONTEXT> and returns the result.
1836		2149
1837	=for gengetinfo end event	2150	=for gengetinfo end event
1838		2151
1839	=item $packed_value = $ev->profiling_info ($name)	2152	=item $packed_value = $ev->profiling_info ($name)
1840		2153
…		…
1847		2160
1848	=for gengetinfo begin profiling	2161	=for gengetinfo begin profiling
1849		2162
1850	=item $ulong = $event->profiling_command_queued	2163	=item $ulong = $event->profiling_command_queued
1851		2164
1852	Calls C<clGetEventProfilingInfo> with C<CL_PROFILING_COMMAND_QUEUED> and returns the result.	2165	Calls C<clGetEventProfilingInfo> with C<OpenCL::PROFILING_COMMAND_QUEUED> and returns the result.
1853		2166
1854	=item $ulong = $event->profiling_command_submit	2167	=item $ulong = $event->profiling_command_submit
1855		2168
1856	Calls C<clGetEventProfilingInfo> with C<CL_PROFILING_COMMAND_SUBMIT> and returns the result.	2169	Calls C<clGetEventProfilingInfo> with C<OpenCL::PROFILING_COMMAND_SUBMIT> and returns the result.
1857		2170
1858	=item $ulong = $event->profiling_command_start	2171	=item $ulong = $event->profiling_command_start
1859		2172
1860	Calls C<clGetEventProfilingInfo> with C<CL_PROFILING_COMMAND_START> and returns the result.	2173	Calls C<clGetEventProfilingInfo> with C<OpenCL::PROFILING_COMMAND_START> and returns the result.
1861		2174
1862	=item $ulong = $event->profiling_command_end	2175	=item $ulong = $event->profiling_command_end
1863		2176
1864	Calls C<clGetEventProfilingInfo> with C<CL_PROFILING_COMMAND_END> and returns the result.	2177	Calls C<clGetEventProfilingInfo> with C<OpenCL::PROFILING_COMMAND_END> and returns the result.
1865		2178
1866	=for gengetinfo end profiling	2179	=for gengetinfo end profiling
1867		2180
1868	=back	2181	=back
1869		2182
…		…
1876	=item $ev->set_status ($execution_status)	2189	=item $ev->set_status ($execution_status)
1877		2190
1878	Sets the execution status of the user event. Can only be called once,	2191	Sets the execution status of the user event. Can only be called once,
1879	either with OpenCL::COMPLETE or a negative number as status.	2192	either with OpenCL::COMPLETE or a negative number as status.
1880		2193
		2194	execution_status: OpenCL::COMPLETE or a negative integer.
		2195
1881	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clSetUserEventStatus.html>	2196	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clSetUserEventStatus.html>
1882		2197
1883	=back	2198	=back
		2199
		2200	=head2 THE OpenCL::Mapped CLASS
		2201
		2202	This class represents objects mapped into host memory. They are
		2203	represented by a blessed string scalar. The string data is the mapped
		2204	memory area, that is, if you read or write it, then the mapped object is
		2205	accessed directly.
		2206
		2207	You must only ever use operations that modify the string in-place - for
		2208	example, a C<substr> that doesn't change the length, or maybe a regex that
		2209	doesn't change the length. Any other operation might cause the data to be
		2210	copied.
		2211
		2212	When the object is destroyed it will enqueue an implicit unmap operation
		2213	on the queue that was used to create it.
		2214
		2215	Keep in mind that you I<need> to unmap (or destroy) mapped objects before
		2216	OpenCL sees the changes, even if some implementations don't need this
		2217	sometimes.
		2218
		2219	Example, replace the first two floats in the mapped buffer by 1 and 2.
		2220
		2221	my $mapped = $queue->map_buffer ($buf, ...
		2222	$mapped->event->wait; # make sure it's there
		2223
		2224	# now replace first 8 bytes by new data, which is exactly 8 bytes long
		2225	# we blindly assume device endianness to equal host endianness
		2226	# (and of course, we assume iee 754 single precision floats :)
		2227	substr $$mapped, 0, 8, pack "f*", 1, 2;
		2228
		2229	=over 4
		2230
		2231	=item $ev = $mapped->unmap ($wait_events...)
		2232
		2233	Unmaps the mapped memory object, using the queue originally used to create
		2234	it, quite similarly to C<< $queue->unmap ($mapped, ...) >>.
		2235
		2236	=item $bool = $mapped->mapped
		2237
		2238	Returns whether the object is still mapped - true before an C<unmap> is
		2239	enqueued, false afterwards.
		2240
		2241	=item $ev = $mapped->event
		2242
		2243	Return the event object associated with the mapped object. Initially, this
		2244	will be the event object created when mapping the object, and after an
		2245	unmap, this will be the event object that the unmap operation created.
		2246
		2247	=item $mapped->wait
		2248
		2249	Same as C<< $mapped->event->wait >> - makes sure no operations on this
		2250	mapped object are outstanding.
		2251
		2252	=item $bytes = $mapped->size
		2253
		2254	Returns the size of the mapped area, in bytes. Same as C<length $$mapped>.
		2255
		2256	=item $ptr = $mapped->ptr
		2257
		2258	Returns the raw memory address of the mapped area.
		2259
		2260	=item $mapped->set ($offset, $data)
		2261
		2262	Replaces the data at the given C<$offset> in the memory area by the new
		2263	C<$data>. This method is safer than direct manipulation of C<$mapped>
		2264	because it does bounds-checking, but also slower.
		2265
		2266	=item $data = $mapped->get ($offset, $length)
		2267
		2268	Returns (without copying) a scalar representing the data at the given
		2269	C<$offset> and C<$length> in the mapped memory area. This is the same as
		2270	the following substr, except much slower;
		2271
		2272	$data = substr $$mapped, $offset, $length
		2273
		2274	=cut
		2275
		2276	sub OpenCL::Mapped::get {
		2277	substr ${$_[0]}, $_[1], $_[2]
		2278	}
		2279
		2280	=back
		2281
		2282	=head2 THE OpenCL::MappedBuffer CLASS
		2283
		2284	This is a subclass of OpenCL::Mapped, representing mapped buffers.
		2285
		2286	=head2 THE OpenCL::MappedImage CLASS
		2287
		2288	This is a subclass of OpenCL::Mapped, representing mapped images.
		2289
		2290	=over 4
		2291
		2292	=item $bytes = $mapped->row_pitch
		2293
		2294	=item $bytes = $mapped->slice_pitch
		2295
		2296	Return the row or slice pitch of the image that has been mapped.
		2297
		2298	=back
		2299
1884		2300
1885	=cut	2301	=cut
1886		2302
1887	1;	2303	1;
1888		2304

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Comparing OpenCL/OpenCL.pm (file contents): Revision 1.63 by root, Sun Apr 29 18:24:35 2012 UTC vs. Revision 1.77 by root, Sat May 5 12:54:03 2012 UTC

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Comparing OpenCL/OpenCL.pm (file contents):
Revision 1.63 by root, Sun Apr 29 18:24:35 2012 UTC vs.
Revision 1.77 by root, Sat May 5 12:54:03 2012 UTC