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Revision 1.10 by root, Thu Nov 17 02:10:39 2011 UTC vs.
Revision 1.45 by root, Sat Apr 21 17:50:27 2012 UTC

…		…
18	vendors) - usually there is only one.	18	vendors) - usually there is only one.
19		19
20	Each platform gives you access to a number of OpenCL::Device objects, e.g.	20	Each platform gives you access to a number of OpenCL::Device objects, e.g.
21	your graphics card.	21	your graphics card.
22		22
23	From a platform and some devices, you create an OpenCL::Context, which is	23	From a platform and some device(s), you create an OpenCL::Context, which is
24	a very central object in OpenCL: Once you have a context you can create	24	a very central object in OpenCL: Once you have a context you can create
25	most other objects:	25	most other objects:
26		26
27	OpenCL::Program objects, which store source code and, after building	27	OpenCL::Program objects, which store source code and, after building for a
28	("compiling and linking"), also binary programs. For each kernel function	28	specific device ("compiling and linking"), also binary programs. For each
29	in a program you can then create an OpenCL::Kernel object which represents	29	kernel function in a program you can then create an OpenCL::Kernel object
30	basically a function call with argument values.	30	which represents basically a function call with argument values.
31		31
32	OpenCL::Memory objects of various flavours: OpenCL::Buffers objects (flat	32	OpenCL::Memory objects of various flavours: OpenCL::Buffer objects (flat
33	memory areas, think array) and OpenCL::Image objects (think 2d or 3d	33	memory areas, think arrays or structs) and OpenCL::Image objects (think 2d
34	array) for bulk data and input and output for kernels.	34	or 3d array) for bulk data and input and output for kernels.
35		35
36	OpenCL::Sampler objects, which are kind of like texture filter modes in	36	OpenCL::Sampler objects, which are kind of like texture filter modes in
37	OpenGL.	37	OpenGL.
38		38
39	OpenCL::Queue objects - command queues, which allow you to submit memory	39	OpenCL::Queue objects - command queues, which allow you to submit memory
…		…
52		52
53	OpenCL manpages:	53	OpenCL manpages:
54		54
55	http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/	55	http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/
56		56
		57	If you are into UML class diagrams, the following diagram might help - if
		58	not, it will be mildly cobfusing:
		59
		60	http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/classDiagram.html
		61
		62	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:
		64
		65	http://developer.amd.com/zones/OpenCLZone/courses/Documents/Introduction_to_OpenCL_Programming%20Training_Guide%20%28201005%29.pdf
		66
		67	And here's NVIDIA's OpenCL Best Practises Guide:
		68
		69	http://developer.download.nvidia.com/compute/cuda/3_2/toolkit/docs/OpenCL_Best_Practices_Guide.pdf
		70
57	=head1 BASIC WORKFLOW	71	=head1 BASIC WORKFLOW
58		72
59	To get something done, you basically have to do this once:	73	To get something done, you basically have to do this once (refer to the
		74	examples below for actual code, this is just a high-level description):
60		75
61	Find some platform (e.g. the first one) and some device (e.g. the first	76	Find some platform (e.g. the first one) and some device(s) (e.g. the first
62	device you can find), and create a context from those.	77	device of the platform), and create a context from those.
63		78
64	Create a command queue from your context, and program objects from your	79	Create program objects from your OpenCL source code, then build (compile)
65	OpenCL source code, build the programs.	80	the programs for each device you want to run them on.
66		81
67	Create kernel objects for all kernels you want to use.	82	Create kernel objects for all kernels you want to use (surprisingly, these
		83	are not device-specific).
68		84
69	Then, to execute stuff, you repeat this:	85	Then, to execute stuff, you repeat these steps, possibly resuing or
		86	sharing some buffers:
70		87
71	Create some input and output buffers from your context. Initialise the	88	Create some input and output buffers from your context. Set these as
72	input buffers with data. Set these as arguments to your kernel.	89	arguments to your kernel.
		90
		91	Enqueue buffer writes to initialise your input buffers (when not
		92	initialised at creation time).
73		93
74	Enqueue the kernel execution.	94	Enqueue the kernel execution.
75		95
76	Enqueue buffer reads for your output buffer to read results.	96	Enqueue buffer reads for your output buffer to read results.
77		97
78	The next section shows how this can be done.
79
80	=head1 EXAMPLES	98	=head1 EXAMPLES
81		99
82	=head2 Enumerate all devices and get contexts for them.	100	=head2 Enumerate all devices and get contexts for them.
83		101
		102	Best run this once to get a feel for the platforms and devices in your
		103	system.
		104
84	for my $platform (OpenCL::platforms) {	105	for my $platform (OpenCL::platforms) {
85	printf "platform: %s\n", $platform->info (OpenCL::PLATFORM_NAME);	106	printf "platform: %s\n", $platform->name;
86	printf "extensions: %s\n", $platform->info (OpenCL::PLATFORM_EXTENSIONS);	107	printf "extensions: %s\n", $platform->extensions;
87	for my $device ($platform->devices) {	108	for my $device ($platform->devices) {
88	printf "+ device: %s\n", $device->info (OpenCL::DEVICE_NAME);	109	printf "+ device: %s\n", $device->name;
89	my $ctx = $device->context;	110	my $ctx = $platform->context (undef, [$device]);
90	# do stuff	111	# do stuff
91	}	112	}
92	}	113	}
93		114
94	=head2 Get a useful context and a command queue.	115	=head2 Get a useful context and a command queue.
95		116
96	my $dev = ((OpenCL::platforms)[0]->devices)[0];	117	This is a useful boilerplate for any OpenCL program that only wants to use
97	my $ctx = $dev->context;	118	one device,
98	my $queue = $ctx->queue ($dev);	119
		120	my ($platform) = OpenCL::platforms; # find first platform
		121	my ($dev) = $platform->devices; # find first device of platform
		122	my $ctx = $platform->context (undef, [$dev]); # create context out of those
		123	my $queue = $ctx->queue ($dev); # create a command queue for the device
99		124
100	=head2 Print all supported image formats of a context.	125	=head2 Print all supported image formats of a context.
		126
		127	Best run this once for your context, to see whats available and how to
		128	gather information.
101		129
102	for my $type (OpenCL::MEM_OBJECT_IMAGE2D, OpenCL::MEM_OBJECT_IMAGE3D) {	130	for my $type (OpenCL::MEM_OBJECT_IMAGE2D, OpenCL::MEM_OBJECT_IMAGE3D) {
103	print "supported image formats for ", OpenCL::enum2str $type, "\n";	131	print "supported image formats for ", OpenCL::enum2str $type, "\n";
104		132
105	for my $f ($ctx->supported_image_formats (0, $type)) {	133	for my $f ($ctx->supported_image_formats (0, $type)) {
…		…
121		149
122	=head2 Create and build a program, then create a kernel out of one of its	150	=head2 Create and build a program, then create a kernel out of one of its
123	functions.	151	functions.
124		152
125	my $src = '	153	my $src = '
126	__kernel void	154	kernel void
127	squareit (__global float *input, __global float *output)	155	squareit (global float *input, global float *output)
128	{	156	{
129	size_t id = get_global_id (0);	157	$id = get_global_id (0);
130	output [id] = input [id] * input [id];	158	output [id] = input [id] * input [id];
131	}	159	}
132	';	160	';
133		161
134	my $prog = $ctx->program_with_source ($src);	162	my $prog = $ctx->program_with_source ($src);
135		163
136	eval { $prog->build ($dev); 1 }	164	# build croaks on compile errors, so catch it and print the compile errors
137	or die $prog->build_info ($dev, OpenCL::PROGRAM_BUILD_LOG);	165	eval { $prog->build ($dev, "-cl-fast-relaxed-math"); 1 }
		166	or die $prog->build_log;
138		167
139	my $kernel = $prog->kernel ("squareit");	168	my $kernel = $prog->kernel ("squareit");
140		169
141	=head2 Create some input and output float buffers, then call squareit on them.	170	=head2 Create some input and output float buffers, then call the
		171	'squareit' kernel on them.
142		172
143	my $input = $ctx->buffer_sv (OpenCL::MEM_COPY_HOST_PTR, pack "f*", 1, 2, 3, 4.5);	173	my $input = $ctx->buffer_sv (OpenCL::MEM_COPY_HOST_PTR, pack "f*", 1, 2, 3, 4.5);
144	my $output = $ctx->buffer (0, OpenCL::SIZEOF_FLOAT * 5);	174	my $output = $ctx->buffer (0, OpenCL::SIZEOF_FLOAT * 5);
145		175
146	# set buffer	176	# set buffer
…		…
181	$ev = $queue->enqueue_read_buffer ($output, 0, 0, OpenCL::SIZEOF_FLOAT * 4, my $data, $ev);	211	$ev = $queue->enqueue_read_buffer ($output, 0, 0, OpenCL::SIZEOF_FLOAT * 4, my $data, $ev);
182		212
183	# wait for the last event to complete	213	# wait for the last event to complete
184	$ev->wait;	214	$ev->wait;
185		215
		216	=head2 Use the OpenGL module to share a texture between OpenCL and OpenGL and draw some julia
		217	set tunnel effect.
		218
		219	This is quite a long example to get you going.
		220
		221	use OpenGL ":all";
		222	use OpenCL;
		223
		224	# open a window and create a gl texture
		225	OpenGL::glpOpenWindow width => 256, height => 256;
		226	my $texid = glGenTextures_p 1;
		227	glBindTexture GL_TEXTURE_2D, $texid;
		228	glTexImage2D_c GL_TEXTURE_2D, 0, GL_RGBA8, 256, 256, 0, GL_RGBA, GL_UNSIGNED_BYTE, 0;
		229
		230	# find and use the first opencl device that let's us get a shared opengl context
		231	my $platform;
		232	my $dev;
		233	my $ctx;
		234
		235	for (OpenCL::platforms) {
		236	$platform = $_;
		237	for ($platform->devices) {
		238	$dev = $_;
		239	$ctx = $platform->context ([OpenCL::GLX_DISPLAY_KHR, undef, OpenCL::GL_CONTEXT_KHR, undef], [$dev])
		240	and last;
		241	}
		242	}
		243
		244	$ctx
		245	or die "cannot find suitable OpenCL device\n";
		246
		247	my $queue = $ctx->queue ($dev);
		248
		249	# now attach an opencl image2d object to the opengl texture
		250	my $tex = $ctx->gl_texture2d (OpenCL::MEM_WRITE_ONLY, GL_TEXTURE_2D, 0, $texid);
		251
		252	# now the boring opencl code
		253	my $src = <<EOF;
		254	kernel void
		255	juliatunnel (write_only image2d_t img, float time)
		256	{
		257	float2 p = (float2)(get_global_id (0), get_global_id (1)) / 256.f * 2.f - 1.f;
		258
		259	float2 m = (float2)(1.f, p.y) / fabs (p.x);
		260	m.x = fabs (fmod (m.x + time * 0.05f, 4.f)) - 2.f;
		261
		262	float2 z = m;
		263	float2 c = (float2)(sin (time * 0.05005), cos (time * 0.06001));
		264
		265	for (int i = 0; i < 25 && dot (z, z) < 4.f; ++i)
		266	z = (float2)(z.x * z.x - z.y * z.y, 2.f * z.x * z.y) + c;
		267
		268	float3 colour = (float3)(z.x, z.y, z.x * z.y);
		269	write_imagef (img, (int2)(get_global_id (0), get_global_id (1)), (float4)(colour * p.x * p.x, 1.));
		270	}
		271	EOF
		272	my $prog = $ctx->program_with_source ($src);
		273	eval { $prog->build ($dev); 1 }
		274	or die $prog->build_log ($dev);
		275
		276	my $kernel = $prog->kernel ("juliatunnel");
		277
		278	# program compiled, kernel ready, now draw and loop
		279
		280	for (my $time; ; ++$time) {
		281	# acquire objects from opengl
		282	$queue->enqueue_acquire_gl_objects ([$tex]);
		283
		284	# configure and run our kernel
		285	$kernel->set_image2d (0, $tex);
		286	$kernel->set_float (1, $time);
		287	$queue->enqueue_nd_range_kernel ($kernel, undef, [256, 256], undef);
		288
		289	# release objects to opengl again
		290	$queue->enqueue_release_gl_objects ([$tex]);
		291
		292	# wait
		293	$queue->finish;
		294
		295	# now draw the texture, the defaults should be all right
		296	glTexParameterf GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST;
		297
		298	glEnable GL_TEXTURE_2D;
		299	glBegin GL_QUADS;
		300	glTexCoord2f 0, 1; glVertex3i -1, -1, -1;
		301	glTexCoord2f 0, 0; glVertex3i 1, -1, -1;
		302	glTexCoord2f 1, 0; glVertex3i 1, 1, -1;
		303	glTexCoord2f 1, 1; glVertex3i -1, 1, -1;
		304	glEnd;
		305
		306	glXSwapBuffers;
		307
		308	select undef, undef, undef, 1/60;
		309	}
		310
186	=head1 DOCUMENTATION	311	=head1 DOCUMENTATION
187		312
188	=head2 BASIC CONVENTIONS	313	=head2 BASIC CONVENTIONS
189		314
190	This is not a 1:1 C-style translation of OpenCL to Perl - instead I	315	This is not a one-to-one C-style translation of OpenCL to Perl - instead
191	attempted to make the interface as type-safe as possible and introducing	316	I attempted to make the interface as type-safe as possible by introducing
192	object syntax where it makes sense. There are a number of important	317	object syntax where it makes sense. There are a number of important
193	differences between the OpenCL C API and this module:	318	differences between the OpenCL C API and this module:
194		319
195	=over 4	320	=over 4
196		321
197	=item * Object lifetime managament is automatic - there is no need	322	=item * Object lifetime managament is automatic - there is no need
198	to free objects explicitly (C<clReleaseXXX>), the release function	323	to free objects explicitly (C<clReleaseXXX>), the release function
199	is called automatically once all Perl references to it go away.	324	is called automatically once all Perl references to it go away.
200		325
201	=item * OpenCL uses CamelCase for function names (C<clGetPlatformInfo>),	326	=item * OpenCL uses CamelCase for function names
		327	(e.g. C<clGetPlatformIDs>, C<clGetPlatformInfo>), while this module
202	while this module uses underscores as word separator and often leaves out	328	uses underscores as word separator and often leaves out prefixes
203	prefixes (C<< $platform->info >>).	329	(C<OpenCL::platforms>, C<< $platform->info >>).
204		330
205	=item * OpenCL often specifies fixed vector function arguments as short	331	=item * OpenCL often specifies fixed vector function arguments as short
206	arrays (C<size_t origin[3]>), while this module explicitly expects the	332	arrays (C<size_t origin[3]>), while this module explicitly expects the
207	components as separate arguments-	333	components as separate arguments (C<$orig_x, $orig_y, $orig_z>) in
		334	function calls.
208		335
209	=item * Where possible, one of the pitch values is calculated from the	336	=item * Structures are often specified by flattening out their components
210	perl scalar length and need not be specified.	337	as with short vectors, and returned as arrayrefs.
211		338
212	=item * When enqueuing commands, the wait list is specified by adding	339	=item * When enqueuing commands, the wait list is specified by adding
213	extra arguments to the function - anywhere a C<$wait_events...> argument	340	extra arguments to the function - anywhere a C<$wait_events...> argument
214	is documented this can be any number of event objects.	341	is documented this can be any number of event objects. As an extsnion
		342	implemented by this module, C<undef> values will be ignored in the event
		343	list.
215		344
216	=item * When enqueuing commands, if the enqueue method is called in void	345	=item * When enqueuing commands, if the enqueue method is called in void
217	context, no event is created. In all other contexts an event is returned	346	context, no event is created. In all other contexts an event is returned
218	by the method.	347	by the method.
219		348
…		…
239	ulong IV - Q	368	ulong IV - Q
240	float NV float f	369	float NV float f
241	half IV ushort S	370	half IV ushort S
242	double NV double d	371	double NV double d
243		372
		373	=head2 GLX SUPPORT
		374
		375	Due to the sad state that OpenGL support is in in Perl (mostly the OpenGL
		376	module, which has little to no documentation and has little to no support
		377	for glX), this module, as a special extension, treats context creation
		378	properties C<OpenCL::GLX_DISPLAY_KHR> and C<OpenCL::GL_CONTEXT_KHR>
		379	specially: If either or both of these are C<undef>, then the OpenCL
		380	module tries to dynamically resolve C<glXGetCurrentDisplay> and
		381	C<glXGetCurrentContext>, call these functions and use their return values
		382	instead.
		383
		384	For this to work, the OpenGL library must be loaded, a GLX context must
		385	have been created and be made current, and C<dlsym> must be available and
		386	capable of finding the function via C<RTLD_DEFAULT>.
		387
244	=head2 THE OpenCL PACKAGE	388	=head2 THE OpenCL PACKAGE
245		389
246	=over 4	390	=over 4
247		391
248	=item $int = OpenCL::errno	392	=item $int = OpenCL::errno
249		393
250	The last error returned by a function - it's only changed on errors.	394	The last error returned by a function - it's only valid after an error occured
		395	and before calling another OpenCL function.
251		396
252	=item $str = OpenCL::err2str $errval	397	=item $str = OpenCL::err2str $errval
253		398
254	Comverts an error value into a human readable string.	399	Comverts an error value into a human readable string.
255		400
256	=item $str = OpenCL::enum2str $enum	401	=item $str = OpenCL::enum2str $enum
257		402
258	Converts most enum values (inof parameter names, image format constants,	403	Converts most enum values (of parameter names, image format constants,
259	object types, addressing and filter modes, command types etc.) into a	404	object types, addressing and filter modes, command types etc.) into a
260	human readbale string. When confronted with some random integer it can be	405	human readable string. When confronted with some random integer it can be
261	very helpful to pass it through this function to maybe get some readable	406	very helpful to pass it through this function to maybe get some readable
262	string out of it.	407	string out of it.
263		408
264	=item @platforms = OpenCL::platforms	409	=item @platforms = OpenCL::platforms
265		410
…		…
283		428
284	=head2 THE OpenCL::Platform CLASS	429	=head2 THE OpenCL::Platform CLASS
285		430
286	=over 4	431	=over 4
287		432
		433	=item @devices = $platform->devices ($type = OpenCL::DEVICE_TYPE_ALL)
		434
		435	Returns a list of matching OpenCL::Device objects.
		436
		437	=item $ctx = $platform->context_from_type ($properties, $type = OpenCL::DEVICE_TYPE_DEFAULT, $notify = undef)
		438
		439	Tries to create a context. Never worked for me, and you need devices explicitly anyway.
		440
		441	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateContextFromType.html>
		442
		443	=item $ctx = $platform->context ($properties = undef, @$devices, $notify = undef)
		444
		445	Create a new OpenCL::Context object using the given device object(s)- a
		446	CL_CONTEXT_PLATFORM property is supplied automatically.
		447
		448	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateContext.html>
		449
288	=item $packed_value = $platform->info ($name)	450	=item $packed_value = $platform->info ($name)
289		451
290	Calls C<clGetPlatformInfo> and returns the packed, raw value - for	452	Calls C<clGetPlatformInfo> and returns the packed, raw value - for
291	strings, this will be the string, for other values you probably need to	453	strings, this will be the string (possibly including terminating \0), for
292	use the correct C<unpack>. This might get improved in the future. Hopefully.	454	other values you probably need to use the correct C<unpack>.
		455
		456	It's best to avoid this method and use one of the following convenience
		457	wrappers.
293		458
294	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetPlatformInfo.html>	459	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetPlatformInfo.html>
295		460
296	=item @devices = $platform->devices ($type = OpenCL::DEVICE_TYPE_ALL)	461	=for gengetinfo begin platform
297		462
298	Returns a list of matching OpenCL::Device objects.	463	=item $string = $platform->profile
299		464
300	=item $ctx = $platform->context_from_type ($properties, $type = OpenCL::DEVICE_TYPE_DEFAULT, $notify = undef)	465	Calls C<clGetPlatformInfo> with C<CL_PLATFORM_PROFILE> and returns the result.
301		466
302	Tries to create a context. Never worked for me.	467	=item $string = $platform->version
303		468
304	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateContextFromType.html>	469	Calls C<clGetPlatformInfo> with C<CL_PLATFORM_VERSION> and returns the result.
		470
		471	=item $string = $platform->name
		472
		473	Calls C<clGetPlatformInfo> with C<CL_PLATFORM_NAME> and returns the result.
		474
		475	=item $string = $platform->vendor
		476
		477	Calls C<clGetPlatformInfo> with C<CL_PLATFORM_VENDOR> and returns the result.
		478
		479	=item $string = $platform->extensions
		480
		481	Calls C<clGetPlatformInfo> with C<CL_PLATFORM_EXTENSIONS> and returns the result.
		482
		483	=for gengetinfo end platform
305		484
306	=back	485	=back
307		486
308	=head2 THE OpenCL::Device CLASS	487	=head2 THE OpenCL::Device CLASS
309		488
…		…
313		492
314	See C<< $platform->info >> for details.	493	See C<< $platform->info >> for details.
315		494
316	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetDeviceInfo.html>	495	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetDeviceInfo.html>
317		496
318	=item $ctx = $device->context ($properties = undef, $notify = undef)	497	=for gengetinfo begin device
319		498
320	Create a new OpenCL::Context object.	499	=item $device_type = $device->type
321		500
322	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateContext.html>	501	Calls C<clGetDeviceInfo> with C<CL_DEVICE_TYPE> and returns the result.
		502
		503	=item $uint = $device->vendor_id
		504
		505	Calls C<clGetDeviceInfo> with C<CL_DEVICE_VENDOR_ID> and returns the result.
		506
		507	=item $uint = $device->max_compute_units
		508
		509	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_COMPUTE_UNITS> and returns the result.
		510
		511	=item $uint = $device->max_work_item_dimensions
		512
		513	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_WORK_ITEM_DIMENSIONS> and returns the result.
		514
		515	=item $int = $device->max_work_group_size
		516
		517	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_WORK_GROUP_SIZE> and returns the result.
		518
		519	=item @ints = $device->max_work_item_sizes
		520
		521	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_WORK_ITEM_SIZES> and returns the result.
		522
		523	=item $uint = $device->preferred_vector_width_char
		524
		525	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PREFERRED_VECTOR_WIDTH_CHAR> and returns the result.
		526
		527	=item $uint = $device->preferred_vector_width_short
		528
		529	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PREFERRED_VECTOR_WIDTH_SHORT> and returns the result.
		530
		531	=item $uint = $device->preferred_vector_width_int
		532
		533	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PREFERRED_VECTOR_WIDTH_INT> and returns the result.
		534
		535	=item $uint = $device->preferred_vector_width_long
		536
		537	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PREFERRED_VECTOR_WIDTH_LONG> and returns the result.
		538
		539	=item $uint = $device->preferred_vector_width_float
		540
		541	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PREFERRED_VECTOR_WIDTH_FLOAT> and returns the result.
		542
		543	=item $uint = $device->preferred_vector_width_double
		544
		545	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PREFERRED_VECTOR_WIDTH_DOUBLE> and returns the result.
		546
		547	=item $uint = $device->max_clock_frequency
		548
		549	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_CLOCK_FREQUENCY> and returns the result.
		550
		551	=item $bitfield = $device->address_bits
		552
		553	Calls C<clGetDeviceInfo> with C<CL_DEVICE_ADDRESS_BITS> and returns the result.
		554
		555	=item $uint = $device->max_read_image_args
		556
		557	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_READ_IMAGE_ARGS> and returns the result.
		558
		559	=item $uint = $device->max_write_image_args
		560
		561	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_WRITE_IMAGE_ARGS> and returns the result.
		562
		563	=item $ulong = $device->max_mem_alloc_size
		564
		565	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_MEM_ALLOC_SIZE> and returns the result.
		566
		567	=item $int = $device->image2d_max_width
		568
		569	Calls C<clGetDeviceInfo> with C<CL_DEVICE_IMAGE2D_MAX_WIDTH> and returns the result.
		570
		571	=item $int = $device->image2d_max_height
		572
		573	Calls C<clGetDeviceInfo> with C<CL_DEVICE_IMAGE2D_MAX_HEIGHT> and returns the result.
		574
		575	=item $int = $device->image3d_max_width
		576
		577	Calls C<clGetDeviceInfo> with C<CL_DEVICE_IMAGE3D_MAX_WIDTH> and returns the result.
		578
		579	=item $int = $device->image3d_max_height
		580
		581	Calls C<clGetDeviceInfo> with C<CL_DEVICE_IMAGE3D_MAX_HEIGHT> and returns the result.
		582
		583	=item $int = $device->image3d_max_depth
		584
		585	Calls C<clGetDeviceInfo> with C<CL_DEVICE_IMAGE3D_MAX_DEPTH> and returns the result.
		586
		587	=item $uint = $device->image_support
		588
		589	Calls C<clGetDeviceInfo> with C<CL_DEVICE_IMAGE_SUPPORT> and returns the result.
		590
		591	=item $int = $device->max_parameter_size
		592
		593	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_PARAMETER_SIZE> and returns the result.
		594
		595	=item $uint = $device->max_samplers
		596
		597	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_SAMPLERS> and returns the result.
		598
		599	=item $uint = $device->mem_base_addr_align
		600
		601	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MEM_BASE_ADDR_ALIGN> and returns the result.
		602
		603	=item $uint = $device->min_data_type_align_size
		604
		605	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MIN_DATA_TYPE_ALIGN_SIZE> and returns the result.
		606
		607	=item $device_fp_config = $device->single_fp_config
		608
		609	Calls C<clGetDeviceInfo> with C<CL_DEVICE_SINGLE_FP_CONFIG> and returns the result.
		610
		611	=item $device_mem_cache_type = $device->global_mem_cache_type
		612
		613	Calls C<clGetDeviceInfo> with C<CL_DEVICE_GLOBAL_MEM_CACHE_TYPE> and returns the result.
		614
		615	=item $uint = $device->global_mem_cacheline_size
		616
		617	Calls C<clGetDeviceInfo> with C<CL_DEVICE_GLOBAL_MEM_CACHELINE_SIZE> and returns the result.
		618
		619	=item $ulong = $device->global_mem_cache_size
		620
		621	Calls C<clGetDeviceInfo> with C<CL_DEVICE_GLOBAL_MEM_CACHE_SIZE> and returns the result.
		622
		623	=item $ulong = $device->global_mem_size
		624
		625	Calls C<clGetDeviceInfo> with C<CL_DEVICE_GLOBAL_MEM_SIZE> and returns the result.
		626
		627	=item $ulong = $device->max_constant_buffer_size
		628
		629	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_CONSTANT_BUFFER_SIZE> and returns the result.
		630
		631	=item $uint = $device->max_constant_args
		632
		633	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_CONSTANT_ARGS> and returns the result.
		634
		635	=item $device_local_mem_type = $device->local_mem_type
		636
		637	Calls C<clGetDeviceInfo> with C<CL_DEVICE_LOCAL_MEM_TYPE> and returns the result.
		638
		639	=item $ulong = $device->local_mem_size
		640
		641	Calls C<clGetDeviceInfo> with C<CL_DEVICE_LOCAL_MEM_SIZE> and returns the result.
		642
		643	=item $boolean = $device->error_correction_support
		644
		645	Calls C<clGetDeviceInfo> with C<CL_DEVICE_ERROR_CORRECTION_SUPPORT> and returns the result.
		646
		647	=item $int = $device->profiling_timer_resolution
		648
		649	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PROFILING_TIMER_RESOLUTION> and returns the result.
		650
		651	=item $boolean = $device->endian_little
		652
		653	Calls C<clGetDeviceInfo> with C<CL_DEVICE_ENDIAN_LITTLE> and returns the result.
		654
		655	=item $boolean = $device->available
		656
		657	Calls C<clGetDeviceInfo> with C<CL_DEVICE_AVAILABLE> and returns the result.
		658
		659	=item $boolean = $device->compiler_available
		660
		661	Calls C<clGetDeviceInfo> with C<CL_DEVICE_COMPILER_AVAILABLE> and returns the result.
		662
		663	=item $device_exec_capabilities = $device->execution_capabilities
		664
		665	Calls C<clGetDeviceInfo> with C<CL_DEVICE_EXECUTION_CAPABILITIES> and returns the result.
		666
		667	=item $command_queue_properties = $device->properties
		668
		669	Calls C<clGetDeviceInfo> with C<CL_DEVICE_QUEUE_PROPERTIES> and returns the result.
		670
		671	=item $ = $device->platform
		672
		673	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PLATFORM> and returns the result.
		674
		675	=item $string = $device->name
		676
		677	Calls C<clGetDeviceInfo> with C<CL_DEVICE_NAME> and returns the result.
		678
		679	=item $string = $device->vendor
		680
		681	Calls C<clGetDeviceInfo> with C<CL_DEVICE_VENDOR> and returns the result.
		682
		683	=item $string = $device->driver_version
		684
		685	Calls C<clGetDeviceInfo> with C<CL_DRIVER_VERSION> and returns the result.
		686
		687	=item $string = $device->profile
		688
		689	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PROFILE> and returns the result.
		690
		691	=item $string = $device->version
		692
		693	Calls C<clGetDeviceInfo> with C<CL_DEVICE_VERSION> and returns the result.
		694
		695	=item $string = $device->extensions
		696
		697	Calls C<clGetDeviceInfo> with C<CL_DEVICE_EXTENSIONS> and returns the result.
		698
		699	=item $uint = $device->preferred_vector_width_half
		700
		701	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PREFERRED_VECTOR_WIDTH_HALF> and returns the result.
		702
		703	=item $uint = $device->native_vector_width_char
		704
		705	Calls C<clGetDeviceInfo> with C<CL_DEVICE_NATIVE_VECTOR_WIDTH_CHAR> and returns the result.
		706
		707	=item $uint = $device->native_vector_width_short
		708
		709	Calls C<clGetDeviceInfo> with C<CL_DEVICE_NATIVE_VECTOR_WIDTH_SHORT> and returns the result.
		710
		711	=item $uint = $device->native_vector_width_int
		712
		713	Calls C<clGetDeviceInfo> with C<CL_DEVICE_NATIVE_VECTOR_WIDTH_INT> and returns the result.
		714
		715	=item $uint = $device->native_vector_width_long
		716
		717	Calls C<clGetDeviceInfo> with C<CL_DEVICE_NATIVE_VECTOR_WIDTH_LONG> and returns the result.
		718
		719	=item $uint = $device->native_vector_width_float
		720
		721	Calls C<clGetDeviceInfo> with C<CL_DEVICE_NATIVE_VECTOR_WIDTH_FLOAT> and returns the result.
		722
		723	=item $uint = $device->native_vector_width_double
		724
		725	Calls C<clGetDeviceInfo> with C<CL_DEVICE_NATIVE_VECTOR_WIDTH_DOUBLE> and returns the result.
		726
		727	=item $uint = $device->native_vector_width_half
		728
		729	Calls C<clGetDeviceInfo> with C<CL_DEVICE_NATIVE_VECTOR_WIDTH_HALF> and returns the result.
		730
		731	=item $device_fp_config = $device->double_fp_config
		732
		733	Calls C<clGetDeviceInfo> with C<CL_DEVICE_DOUBLE_FP_CONFIG> and returns the result.
		734
		735	=item $device_fp_config = $device->half_fp_config
		736
		737	Calls C<clGetDeviceInfo> with C<CL_DEVICE_HALF_FP_CONFIG> and returns the result.
		738
		739	=item $boolean = $device->host_unified_memory
		740
		741	Calls C<clGetDeviceInfo> with C<CL_DEVICE_HOST_UNIFIED_MEMORY> and returns the result.
		742
		743	=item $device = $device->parent_device_ext
		744
		745	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PARENT_DEVICE_EXT> and returns the result.
		746
		747	=item @device_partition_property_exts = $device->partition_types_ext
		748
		749	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PARTITION_TYPES_EXT> and returns the result.
		750
		751	=item @device_partition_property_exts = $device->affinity_domains_ext
		752
		753	Calls C<clGetDeviceInfo> with C<CL_DEVICE_AFFINITY_DOMAINS_EXT> and returns the result.
		754
		755	=item $uint = $device->reference_count_ext
		756
		757	Calls C<clGetDeviceInfo> with C<CL_DEVICE_REFERENCE_COUNT_EXT > and returns the result.
		758
		759	=item @device_partition_property_exts = $device->partition_style_ext
		760
		761	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PARTITION_STYLE_EXT> and returns the result.
		762
		763	=for gengetinfo end device
323		764
324	=back	765	=back
325		766
326	=head2 THE OpenCL::Context CLASS	767	=head2 THE OpenCL::Context CLASS
327		768
328	=over 4	769	=over 4
329		770
330	=item $packed_value = $ctx->info ($name)
331
332	See C<< $platform->info >> for details.
333
334	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetContextInfo.html>
335
336	=item $queue = $ctx->queue ($device, $properties)	771	=item $queue = $ctx->queue ($device, $properties)
337		772
338	Create a new OpenCL::Queue object from the context and the given device.	773	Create a new OpenCL::Queue object from the context and the given device.
339		774
340	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateCommandQueue.html>	775	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateCommandQueue.html>
341		776
		777	Example: create an out-of-order queue.
		778
		779	$queue = $ctx->queue ($device, OpenCL::QUEUE_OUT_OF_ORDER_EXEC_MODE_ENABLE);
		780
342	=item $ev = $ctx->user_event	781	=item $ev = $ctx->user_event
343		782
344	Creates a new OpenCL::UserEvent object.	783	Creates a new OpenCL::UserEvent object.
345		784
346	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateUserEvent.html>	785	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateUserEvent.html>
347		786
348	=item $buf = $ctx->buffer ($flags, $len)	787	=item $buf = $ctx->buffer ($flags, $len)
349		788
350	Creates a new OpenCL::Buffer object with the given flags and octet-size.	789	Creates a new OpenCL::Buffer (actually OpenCL::BufferObj) object with the
		790	given flags and octet-size.
351		791
352	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateBuffer.html>	792	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateBuffer.html>
353		793
354	=item $buf = $ctx->buffer_sv ($flags, $data)	794	=item $buf = $ctx->buffer_sv ($flags, $data)
355		795
356	Creates a new OpenCL::Buffer object and initialise it with the given data values.	796	Creates a new OpenCL::Buffer (actually OpenCL::BufferObj) object and
		797	initialise it with the given data values.
357		798
358	=item $img = $ctx->image2d ($flags, $channel_order, $channel_type, $width, $height, $data)	799	=item $img = $ctx->image2d ($flags, $channel_order, $channel_type, $width, $height, $row_pitch = 0, $data = undef)
359		800
360	Creates a new OpenCL::Image2D object and optionally initialises it with the given data values.	801	Creates a new OpenCL::Image2D object and optionally initialises it with
		802	the given data values.
361		803
362	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateImage2D.html>	804	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateImage2D.html>
363		805
364	=item $img = $ctx->image3d ($flags, $channel_order, $channel_type, $width, $height, $depth, $slice_pitch, $data)	806	=item $img = $ctx->image3d ($flags, $channel_order, $channel_type, $width, $height, $depth, $row_pitch = 0, $slice_pitch = 0, $data = undef)
365		807
366	Creates a new OpenCL::Image3D object and optionally initialises it with the given data values.	808	Creates a new OpenCL::Image3D object and optionally initialises it with
		809	the given data values.
367		810
368	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateImage3D.html>	811	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateImage3D.html>
		812
		813	=item $buffer = $ctx->gl_buffer ($flags, $bufobj)
		814
		815	Creates a new OpenCL::Buffer (actually OpenCL::BufferObj) object that refers to the given
		816	OpenGL buffer object.
		817
		818	http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateFromGLBuffer.html
		819
		820	=item $ctx->gl_texture2d ($flags, $target, $miplevel, $texture)
		821
		822	Creates a new OpenCL::Image2D object that refers to the given OpenGL
		823	2D texture object.
		824
		825	http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateFromGLTexture2D.html
		826
		827	=item $ctx->gl_texture3d ($flags, $target, $miplevel, $texture)
		828
		829	Creates a new OpenCL::Image3D object that refers to the given OpenGL
		830	3D texture object.
		831
		832	http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateFromGLTexture3D.html
		833
		834	=item $ctx->gl_renderbuffer ($flags, $renderbuffer)
		835
		836	Creates a new OpenCL::Image2D object that refers to the given OpenGL
		837	render buffer.
		838
		839	http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateFromGLRenderbuffer.html
369		840
370	=item @formats = $ctx->supported_image_formats ($flags, $image_type)	841	=item @formats = $ctx->supported_image_formats ($flags, $image_type)
371		842
372	Returns a list of matching image formats - each format is an arrayref with	843	Returns a list of matching image formats - each format is an arrayref with
373	two values, $channel_order and $channel_type, in it.	844	two values, $channel_order and $channel_type, in it.
…		…
383	=item $program = $ctx->program_with_source ($string)	854	=item $program = $ctx->program_with_source ($string)
384		855
385	Creates a new OpenCL::Program object from the given source code.	856	Creates a new OpenCL::Program object from the given source code.
386		857
387	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateProgramWithSource.html>	858	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateProgramWithSource.html>
		859
		860	=item $packed_value = $ctx->info ($name)
		861
		862	See C<< $platform->info >> for details.
		863
		864	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetContextInfo.html>
		865
		866	=for gengetinfo begin context
		867
		868	=item $uint = $context->reference_count
		869
		870	Calls C<clGetContextInfo> with C<CL_CONTEXT_REFERENCE_COUNT> and returns the result.
		871
		872	=item @devices = $context->devices
		873
		874	Calls C<clGetContextInfo> with C<CL_CONTEXT_DEVICES> and returns the result.
		875
		876	=item @property_ints = $context->properties
		877
		878	Calls C<clGetContextInfo> with C<CL_CONTEXT_PROPERTIES> and returns the result.
		879
		880	=item $uint = $context->num_devices
		881
		882	Calls C<clGetContextInfo> with C<CL_CONTEXT_NUM_DEVICES> and returns the result.
		883
		884	=for gengetinfo end context
388		885
389	=back	886	=back
390		887
391	=head2 THE OpenCL::Queue CLASS	888	=head2 THE OpenCL::Queue CLASS
392		889
…		…
398	for completion, unless the method is called in void context, in which case	895	for completion, unless the method is called in void context, in which case
399	no event object is created.	896	no event object is created.
400		897
401	They also allow you to specify any number of other event objects that this	898	They also allow you to specify any number of other event objects that this
402	request has to wait for before it starts executing, by simply passing the	899	request has to wait for before it starts executing, by simply passing the
403	event objects as extra parameters to the enqueue methods.	900	event objects as extra parameters to the enqueue methods. To simplify
		901	program design, this module ignores any C<undef> values in the list of
		902	events. This makes it possible to code operations such as this, without
		903	having to put a valid event object into C<$event> first:
		904
		905	$event = $queue->enqueue_xxx (..., $event);
404		906
405	Queues execute in-order by default, without any parallelism, so in most	907	Queues execute in-order by default, without any parallelism, so in most
406	cases (i.e. you use only one queue) it's not necessary to wait for or	908	cases (i.e. you use only one queue) it's not necessary to wait for or
407	create event objects.	909	create event objects, althoguh an our of order queue is often a bit
		910	faster.
408		911
409	=over 4	912	=over 4
410		913
411	=item $packed_value = $ctx->info ($name)
412
413	See C<< $platform->info >> for details.
414
415	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetCommandQueueInfo.html>
416
417	=item $ev = $queue->enqueue_read_buffer ($buffer, $blocking, $offset, $len, $data, $wait_events...)	914	=item $ev = $queue->enqueue_read_buffer ($buffer, $blocking, $offset, $len, $data, $wait_events...)
418		915
419	Reads data from buffer into the given string.	916	Reads data from buffer into the given string.
420		917
421	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReadBuffer.html>	918	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReadBuffer.html>
…		…
428		925
429	=item $ev = $queue->enqueue_copy_buffer ($src, $dst, $src_offset, $dst_offset, $len, $wait_events...)	926	=item $ev = $queue->enqueue_copy_buffer ($src, $dst, $src_offset, $dst_offset, $len, $wait_events...)
430		927
431	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyBuffer.html>	928	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyBuffer.html>
432		929
		930	=item $ev = $queue->enqueue_read_buffer_rect (OpenCL::Memory buf, cl_bool blocking, $buf_x, $buf_y, $buf_z, $host_x, $host_y, $host_z, $width, $height, $depth, $buf_row_pitch, $buf_slice_pitch, $host_row_pitch, $host_slice_pitch, $data, $wait_events...)
		931
		932	http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReadBufferRect.html
		933
		934	=item $ev = $queue->enqueue_write_buffer_rect (OpenCL::Memory buf, cl_bool blocking, $buf_x, $buf_y, $buf_z, $host_x, $host_y, $host_z, $width, $height, $depth, $buf_row_pitch, $buf_slice_pitch, $host_row_pitch, $host_slice_pitch, $data, $wait_events...)
		935
		936	http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWriteBufferRect.html
		937
433	=item $ev = $queue->enqueue_read_image ($src, $blocking, $x, $y, $z, $width, $height, $depth, $row_pitch, $slice_pitch, $data, $wait_events...)	938	=item $ev = $queue->enqueue_read_image ($src, $blocking, $x, $y, $z, $width, $height, $depth, $row_pitch, $slice_pitch, $data, $wait_events...)
434		939
		940	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyBufferRect.html>
		941
		942	=item $ev = $queue->enqueue_copy_buffer_to_image ($src_buffer, $dst_image, $src_offset, $dst_x, $dst_y, $dst_z, $width, $height, $depth, $wait_events...)
		943
435	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReadImage.html>	944	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReadImage.html>
436		945
437	=item $ev = $queue->enqueue_write_image ($src, $blocking, $x, $y, $z, $width, $height, $depth, $row_pitch, $data, $wait_events...)	946	=item $ev = $queue->enqueue_write_image ($src, $blocking, $x, $y, $z, $width, $height, $depth, $row_pitch, $slice_pitch, $data, $wait_events...)
438		947
439	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWriteImage.html>	948	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWriteImage.html>
440		949
		950	=item $ev = $queue->enqueue_copy_image ($src_image, $dst_image, $src_x, $src_y, $src_z, $dst_x, $dst_y, $dst_z, $width, $height, $depth, $wait_events...)
		951
		952	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyImage.html>
		953
		954	=item $ev = $queue->enqueue_copy_image_to_buffer ($src_image, $dst_image, $src_x, $src_y, $src_z, $width, $height, $depth, $dst_offset, $wait_events...)
		955
		956	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyImageToBuffer.html>
		957
441	=item $ev = $queue->enqueue_copy_buffer_rect ($src, $dst, $src_x, $src_y, $src_z, $dst_x, $dst_y, $dst_z, $width, $height, $depth, $src_row_pitch, $src_slice_pitch, 4dst_row_pitch, $dst_slice_pitch, $ait_event...)	958	=item $ev = $queue->enqueue_copy_buffer_rect ($src, $dst, $src_x, $src_y, $src_z, $dst_x, $dst_y, $dst_z, $width, $height, $depth, $src_row_pitch, $src_slice_pitch, $dst_row_pitch, $dst_slice_pitch, $wait_event...)
442		959
443	Yeah.	960	Yeah.
444		961
445	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyBufferRect.html>
446
447	=item $ev = $queue->enqueue_copy_buffer_to_image (OpenCL::Buffer src, OpenCL::Image dst, size_t src_offset, size_t dst_x, size_t dst_y, size_t dst_z, size_t width, size_t height, size_t depth, ...)
448
449	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyBufferToImage.html>.	962	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyBufferToImage.html>.
450
451	=item $ev = $queue->enqueue_copy_image (OpenCL::Image src, OpenCL::Buffer dst, size_t src_x, size_t src_y, size_t src_z, size_t dst_x, size_t dst_y, size_t dst_z, size_t width, size_t height, size_t depth, ...)
452
453	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyImage.html>
454
455	=item $ev = $queue->enqueue_copy_image_to_buffer (OpenCL::Image src, OpenCL::Buffer dst, size_t src_x, size_t src_y, size_t src_z, size_t width, size_t height, size_t depth, size_t dst_offset, ...)
456
457	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyImageToBuffer.html>
458		963
459	=item $ev = $queue->enqueue_task ($kernel, $wait_events...)	964	=item $ev = $queue->enqueue_task ($kernel, $wait_events...)
460		965
461	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueTask.html>	966	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueTask.html>
462		967
…		…
476	reference to an array of local work sizes, with the same number of	981	reference to an array of local work sizes, with the same number of
477	elements as @$global_work_size.	982	elements as @$global_work_size.
478		983
479	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueNDRangeKernel.html>	984	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueNDRangeKernel.html>
480		985
481	=item $ev = $queue->enqueue_marker	986	=item $ev = $queue->enqueue_marker ($wait_events...)
482		987
483	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueMarker.html>	988	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueMarker.html>
484		989
		990	=item $ev = $queue->enqueue_acquire_gl_objects ([object, ...], $wait_events...)
		991
		992	Enqueues a list (an array-ref of OpenCL::Memory objects) to be acquired
		993	for subsequent OpenCL usage.
		994
		995	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueAcquireGLObjects.html>
		996
		997	=item $ev = $queue->enqueue_release_gl_objects ([object, ...], $wait_events...)
		998
		999	Enqueues a list (an array-ref of OpenCL::Memory objects) to be released
		1000	for subsequent OpenGL usage.
		1001
		1002	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReleaseGLObjects.html>
		1003
485	=item $ev = $queue->enqueue_wait_for_events ($wait_events...)	1004	=item $ev = $queue->enqueue_wait_for_events ($wait_events...)
486		1005
487	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWaitForEvents.html>	1006	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWaitForEvents.html>
488		1007
489	=item $queue->enqueue_barrier	1008	=item $queue->enqueue_barrier
…		…
496		1015
497	=item $queue->finish	1016	=item $queue->finish
498		1017
499	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clFinish.html>	1018	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clFinish.html>
500		1019
		1020	=item $packed_value = $queue->info ($name)
		1021
		1022	See C<< $platform->info >> for details.
		1023
		1024	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetCommandQueueInfo.html>
		1025
		1026	=for gengetinfo begin command_queue
		1027
		1028	=item $ctx = $command_queue->context
		1029
		1030	Calls C<clGetCommandQueueInfo> with C<CL_QUEUE_CONTEXT> and returns the result.
		1031
		1032	=item $device = $command_queue->device
		1033
		1034	Calls C<clGetCommandQueueInfo> with C<CL_QUEUE_DEVICE> and returns the result.
		1035
		1036	=item $uint = $command_queue->reference_count
		1037
		1038	Calls C<clGetCommandQueueInfo> with C<CL_QUEUE_REFERENCE_COUNT> and returns the result.
		1039
		1040	=item $command_queue_properties = $command_queue->properties
		1041
		1042	Calls C<clGetCommandQueueInfo> with C<CL_QUEUE_PROPERTIES> and returns the result.
		1043
		1044	=for gengetinfo end command_queue
		1045
501	=back	1046	=back
502		1047
503	=head2 THE OpenCL::Memory CLASS	1048	=head2 THE OpenCL::Memory CLASS
504		1049
505	This the superclass of all memory objects - OpenCL::Buffer, OpenCL::Image,	1050	This the superclass of all memory objects - OpenCL::Buffer, OpenCL::Image,
506	OpenCL::Image2D and OpenCL::Image3D. The subclasses of this class	1051	OpenCL::Image2D and OpenCL::Image3D.
507	currently only exist to allow type-checking.
508		1052
509	=over 4	1053	=over 4
510		1054
511	=item $packed_value = $memory->info ($name)	1055	=item $packed_value = $memory->info ($name)
512		1056
513	See C<< $platform->info >> for details.	1057	See C<< $platform->info >> for details.
514		1058
515	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetMemObjectInfo.html>	1059	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetMemObjectInfo.html>
516		1060
		1061	=for gengetinfo begin mem
		1062
		1063	=item $mem_object_type = $mem->type
		1064
		1065	Calls C<clGetMemObjectInfo> with C<CL_MEM_TYPE> and returns the result.
		1066
		1067	=item $mem_flags = $mem->flags
		1068
		1069	Calls C<clGetMemObjectInfo> with C<CL_MEM_FLAGS> and returns the result.
		1070
		1071	=item $int = $mem->size
		1072
		1073	Calls C<clGetMemObjectInfo> with C<CL_MEM_SIZE> and returns the result.
		1074
		1075	=item $ptr_value = $mem->host_ptr
		1076
		1077	Calls C<clGetMemObjectInfo> with C<CL_MEM_HOST_PTR> and returns the result.
		1078
		1079	=item $uint = $mem->map_count
		1080
		1081	Calls C<clGetMemObjectInfo> with C<CL_MEM_MAP_COUNT> and returns the result.
		1082
		1083	=item $uint = $mem->reference_count
		1084
		1085	Calls C<clGetMemObjectInfo> with C<CL_MEM_REFERENCE_COUNT> and returns the result.
		1086
		1087	=item $ctx = $mem->context
		1088
		1089	Calls C<clGetMemObjectInfo> with C<CL_MEM_CONTEXT> and returns the result.
		1090
		1091	=item $mem = $mem->associated_memobject
		1092
		1093	Calls C<clGetMemObjectInfo> with C<CL_MEM_ASSOCIATED_MEMOBJECT> and returns the result.
		1094
		1095	=item $int = $mem->offset
		1096
		1097	Calls C<clGetMemObjectInfo> with C<CL_MEM_OFFSET> and returns the result.
		1098
		1099	=for gengetinfo end mem
		1100
		1101	=item ($type, $name) = $mem->gl_object_info
		1102
		1103	Returns the OpenGL object type (e.g. OpenCL::GL_OBJECT_TEXTURE2D) and the
		1104	object "name" (e.g. the texture name) used to create this memory object.
		1105
		1106	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetGLObjectInfo.html>
		1107
517	=back	1108	=back
518		1109
		1110	=head2 THE OpenCL::Buffer CLASS
		1111
		1112	This is a subclass of OpenCL::Memory, and the superclass of
		1113	OpenCL::BufferObj. Its purpose is simply to distinguish between buffers
		1114	and sub-buffers.
		1115
		1116	=head2 THE OpenCL::BufferObj CLASS
		1117
		1118	This is a subclass of OpenCL::Buffer and thus OpenCL::Memory. It exists
		1119	because one cna create sub buffers of OpenLC::BufferObj objects, but not
		1120	sub buffers from these sub buffers.
		1121
		1122	=over 4
		1123
		1124	=item $subbuf = $buf_obj->sub_buffer_region ($flags, $origin, $size)
		1125
		1126	Creates an OpenCL::Buffer objects from this buffer and returns it. The
		1127	C<buffer_create_type> is assumed to be C<CL_BUFFER_CREATE_TYPE_REGION>.
		1128
		1129	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateSubBuffer.html>
		1130
		1131	=back
		1132
		1133	=head2 THE OpenCL::Image CLASS
		1134
		1135	This is the superclass of all image objects - OpenCL::Image2D and OpenCL::Image3D.
		1136
		1137	=over 4
		1138
		1139	=item $packed_value = $ev->image_info ($name)
		1140
		1141	See C<< $platform->info >> for details.
		1142
		1143	The reason this method is not called C<info> is that there already is an
		1144	C<< ->info >> method inherited from C<OpenCL::Memory>.
		1145
		1146	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetImageInfo.html>
		1147
		1148	=for gengetinfo begin image
		1149
		1150	=item $int = $image->element_size
		1151
		1152	Calls C<clGetImageInfo> with C<CL_IMAGE_ELEMENT_SIZE> and returns the result.
		1153
		1154	=item $int = $image->row_pitch
		1155
		1156	Calls C<clGetImageInfo> with C<CL_IMAGE_ROW_PITCH> and returns the result.
		1157
		1158	=item $int = $image->slice_pitch
		1159
		1160	Calls C<clGetImageInfo> with C<CL_IMAGE_SLICE_PITCH> and returns the result.
		1161
		1162	=item $int = $image->width
		1163
		1164	Calls C<clGetImageInfo> with C<CL_IMAGE_WIDTH> and returns the result.
		1165
		1166	=item $int = $image->height
		1167
		1168	Calls C<clGetImageInfo> with C<CL_IMAGE_HEIGHT> and returns the result.
		1169
		1170	=item $int = $image->depth
		1171
		1172	Calls C<clGetImageInfo> with C<CL_IMAGE_DEPTH> and returns the result.
		1173
		1174	=for gengetinfo end image
		1175
		1176	=for gengetinfo begin gl_texture
		1177
		1178	=item $GLenum = $gl_texture->target
		1179
		1180	Calls C<clGetGLTextureInfo> with C<CL_GL_TEXTURE_TARGET> and returns the result.
		1181
		1182	=item $GLint = $gl_texture->gl_mipmap_level
		1183
		1184	Calls C<clGetGLTextureInfo> with C<CL_GL_MIPMAP_LEVEL> and returns the result.
		1185
		1186	=for gengetinfo end gl_texture
		1187
		1188	=back
		1189
519	=head2 THE OpenCL::Sampler CLASS	1190	=head2 THE OpenCL::Sampler CLASS
520		1191
521	=over 4	1192	=over 4
522		1193
523	=item $packed_value = $sampler->info ($name)	1194	=item $packed_value = $sampler->info ($name)
524		1195
525	See C<< $platform->info >> for details.	1196	See C<< $platform->info >> for details.
526		1197
527	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetSamplerInfo.html>	1198	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetSamplerInfo.html>
528		1199
		1200	=for gengetinfo begin sampler
		1201
		1202	=item $uint = $sampler->reference_count
		1203
		1204	Calls C<clGetSamplerInfo> with C<CL_SAMPLER_REFERENCE_COUNT> and returns the result.
		1205
		1206	=item $ctx = $sampler->context
		1207
		1208	Calls C<clGetSamplerInfo> with C<CL_SAMPLER_CONTEXT> and returns the result.
		1209
		1210	=item $addressing_mode = $sampler->normalized_coords
		1211
		1212	Calls C<clGetSamplerInfo> with C<CL_SAMPLER_NORMALIZED_COORDS> and returns the result.
		1213
		1214	=item $filter_mode = $sampler->addressing_mode
		1215
		1216	Calls C<clGetSamplerInfo> with C<CL_SAMPLER_ADDRESSING_MODE> and returns the result.
		1217
		1218	=item $boolean = $sampler->filter_mode
		1219
		1220	Calls C<clGetSamplerInfo> with C<CL_SAMPLER_FILTER_MODE> and returns the result.
		1221
		1222	=for gengetinfo end sampler
		1223
529	=back	1224	=back
530		1225
531	=head2 THE OpenCL::Program CLASS	1226	=head2 THE OpenCL::Program CLASS
532		1227
533	=over 4	1228	=over 4
534
535	=item $packed_value = $program->info ($name)
536
537	See C<< $platform->info >> for details.
538
539	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetProgramInfo.html>
540		1229
541	=item $program->build ($device, $options = "")	1230	=item $program->build ($device, $options = "")
542		1231
543	Tries to build the program with the givne options.	1232	Tries to build the program with the givne options.
544		1233
…		…
556	Creates an OpenCL::Kernel object out of the named C<__kernel> function in	1245	Creates an OpenCL::Kernel object out of the named C<__kernel> function in
557	the program.	1246	the program.
558		1247
559	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateKernel.html>	1248	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateKernel.html>
560		1249
		1250	=for gengetinfo begin program_build
		1251
		1252	=item $build_status = $program->build_status ($device)
		1253
		1254	Calls C<clGetProgramBuildInfo> with C<CL_PROGRAM_BUILD_STATUS> and returns the result.
		1255
		1256	=item $string = $program->build_options ($device)
		1257
		1258	Calls C<clGetProgramBuildInfo> with C<CL_PROGRAM_BUILD_OPTIONS> and returns the result.
		1259
		1260	=item $string = $program->build_log ($device)
		1261
		1262	Calls C<clGetProgramBuildInfo> with C<CL_PROGRAM_BUILD_LOG> and returns the result.
		1263
		1264	=for gengetinfo end program_build
		1265
		1266	=item $packed_value = $program->info ($name)
		1267
		1268	See C<< $platform->info >> for details.
		1269
		1270	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetProgramInfo.html>
		1271
		1272	=for gengetinfo begin program
		1273
		1274	=item $uint = $program->reference_count
		1275
		1276	Calls C<clGetProgramInfo> with C<CL_PROGRAM_REFERENCE_COUNT> and returns the result.
		1277
		1278	=item $ctx = $program->context
		1279
		1280	Calls C<clGetProgramInfo> with C<CL_PROGRAM_CONTEXT> and returns the result.
		1281
		1282	=item $uint = $program->num_devices
		1283
		1284	Calls C<clGetProgramInfo> with C<CL_PROGRAM_NUM_DEVICES> and returns the result.
		1285
		1286	=item @devices = $program->devices
		1287
		1288	Calls C<clGetProgramInfo> with C<CL_PROGRAM_DEVICES> and returns the result.
		1289
		1290	=item $string = $program->source
		1291
		1292	Calls C<clGetProgramInfo> with C<CL_PROGRAM_SOURCE> and returns the result.
		1293
		1294	=item @ints = $program->binary_sizes
		1295
		1296	Calls C<clGetProgramInfo> with C<CL_PROGRAM_BINARY_SIZES> and returns the result.
		1297
		1298	=for gengetinfo end program
		1299
		1300	=item @blobs = $program->binaries
		1301
		1302	Returns a string for the compiled binary for every device associated with
		1303	the program, empty strings indicate missing programs, and an empty result
		1304	means no program binaries are available.
		1305
		1306	These "binaries" are often, in fact, informative low-level assembly
		1307	sources.
		1308
		1309	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetProgramInfo.html>
		1310
561	=back	1311	=back
562		1312
563	=head2 THE OpenCL::Kernel CLASS	1313	=head2 THE OpenCL::Kernel CLASS
564		1314
565	=over 4	1315	=over 4
…		…
567	=item $packed_value = $kernel->info ($name)	1317	=item $packed_value = $kernel->info ($name)
568		1318
569	See C<< $platform->info >> for details.	1319	See C<< $platform->info >> for details.
570		1320
571	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetKernelInfo.html>	1321	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetKernelInfo.html>
		1322
		1323	=for gengetinfo begin kernel
		1324
		1325	=item $string = $kernel->function_name
		1326
		1327	Calls C<clGetKernelInfo> with C<CL_KERNEL_FUNCTION_NAME> and returns the result.
		1328
		1329	=item $uint = $kernel->num_args
		1330
		1331	Calls C<clGetKernelInfo> with C<CL_KERNEL_NUM_ARGS> and returns the result.
		1332
		1333	=item $uint = $kernel->reference_count
		1334
		1335	Calls C<clGetKernelInfo> with C<CL_KERNEL_REFERENCE_COUNT> and returns the result.
		1336
		1337	=item $ctx = $kernel->context
		1338
		1339	Calls C<clGetKernelInfo> with C<CL_KERNEL_CONTEXT> and returns the result.
		1340
		1341	=item $program = $kernel->program
		1342
		1343	Calls C<clGetKernelInfo> with C<CL_KERNEL_PROGRAM> and returns the result.
		1344
		1345	=for gengetinfo end kernel
		1346
		1347	=item $packed_value = $kernel->work_group_info ($device, $name)
		1348
		1349	See C<< $platform->info >> for details.
		1350
		1351	The reason this method is not called C<info> is that there already is an
		1352	C<< ->info >> method.
		1353
		1354	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetKernelWorkGroupInfo.html>
		1355
		1356	=for gengetinfo begin kernel_work_group
		1357
		1358	=item $int = $kernel->work_group_size ($device)
		1359
		1360	Calls C<clGetKernelWorkGroupInfo> with C<CL_KERNEL_WORK_GROUP_SIZE> and returns the result.
		1361
		1362	=item @ints = $kernel->compile_work_group_size ($device)
		1363
		1364	Calls C<clGetKernelWorkGroupInfo> with C<CL_KERNEL_COMPILE_WORK_GROUP_SIZE> and returns the result.
		1365
		1366	=item $ulong = $kernel->local_mem_size ($device)
		1367
		1368	Calls C<clGetKernelWorkGroupInfo> with C<CL_KERNEL_LOCAL_MEM_SIZE> and returns the result.
		1369
		1370	=item $int = $kernel->preferred_work_group_size_multiple ($device)
		1371
		1372	Calls C<clGetKernelWorkGroupInfo> with C<CL_KERNEL_PREFERRED_WORK_GROUP_SIZE_MULTIPLE> and returns the result.
		1373
		1374	=item $ulong = $kernel->private_mem_size ($device)
		1375
		1376	Calls C<clGetKernelWorkGroupInfo> with C<CL_KERNEL_PRIVATE_MEM_SIZE> and returns the result.
		1377
		1378	=for gengetinfo end kernel_work_group
572		1379
573	=item $kernel->set_TYPE ($index, $value)	1380	=item $kernel->set_TYPE ($index, $value)
574		1381
575	This is a family of methods to set the kernel argument with the number C<$index> to the give C<$value>.	1382	This is a family of methods to set the kernel argument with the number C<$index> to the give C<$value>.
576		1383
577	TYPE is one of C<char>, C<uchar>, C<short>, C<ushort>, C<int>, C<uint>,	1384	TYPE is one of C<char>, C<uchar>, C<short>, C<ushort>, C<int>, C<uint>,
578	C<long>, C<ulong>, C<half>, C<float>, C<double>, C<memory>, C<buffer>,	1385	C<long>, C<ulong>, C<half>, C<float>, C<double>, C<memory>, C<buffer>,
579	C<image2d>, C<image3d>, C<sampler> or C<event>.	1386	C<image2d>, C<image3d>, C<sampler>, C<local> or C<event>.
580		1387
581	Chars and integers (including the half type) are specified as integers,	1388	Chars and integers (including the half type) are specified as integers,
582	float and double as floating point values, memory/buffer/image2d/image3d	1389	float and double as floating point values, memory/buffer/image2d/image3d
583	must be an object of that type or C<undef>, and sampler and event must be	1390	must be an object of that type or C<undef>, local-memory arguments are
584	objects of that type.	1391	set by specifying the size, and sampler and event must be objects of that
		1392	type.
585		1393
586	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clSetKernelArg.html>	1394	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clSetKernelArg.html>
587		1395
588	=back	1396	=back
589		1397
…		…
592	This is the superclass for all event objects (including OpenCL::UserEvent	1400	This is the superclass for all event objects (including OpenCL::UserEvent
593	objects).	1401	objects).
594		1402
595	=over 4	1403	=over 4
596		1404
		1405	=item $ev->wait
		1406
		1407	Waits for the event to complete.
		1408
		1409	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clWaitForEvents.html>
		1410
597	=item $packed_value = $ev->info ($name)	1411	=item $packed_value = $ev->info ($name)
598		1412
599	See C<< $platform->info >> for details.	1413	See C<< $platform->info >> for details.
600		1414
601	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetEventInfo.html>	1415	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetEventInfo.html>
602		1416
603	=item $ev->wait	1417	=for gengetinfo begin event
604		1418
605	Waits for the event to complete.	1419	=item $queue = $event->command_queue
606		1420
		1421	Calls C<clGetEventInfo> with C<CL_EVENT_COMMAND_QUEUE> and returns the result.
		1422
		1423	=item $command_type = $event->command_type
		1424
		1425	Calls C<clGetEventInfo> with C<CL_EVENT_COMMAND_TYPE> and returns the result.
		1426
		1427	=item $uint = $event->reference_count
		1428
		1429	Calls C<clGetEventInfo> with C<CL_EVENT_REFERENCE_COUNT> and returns the result.
		1430
		1431	=item $uint = $event->command_execution_status
		1432
		1433	Calls C<clGetEventInfo> with C<CL_EVENT_COMMAND_EXECUTION_STATUS> and returns the result.
		1434
		1435	=item $ctx = $event->context
		1436
		1437	Calls C<clGetEventInfo> with C<CL_EVENT_CONTEXT> and returns the result.
		1438
		1439	=for gengetinfo end event
		1440
		1441	=item $packed_value = $ev->profiling_info ($name)
		1442
		1443	See C<< $platform->info >> for details.
		1444
		1445	The reason this method is not called C<info> is that there already is an
		1446	C<< ->info >> method.
		1447
607	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clWaitForEvents.html>	1448	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetProfilingInfo.html>
		1449
		1450	=for gengetinfo begin profiling
		1451
		1452	=item $ulong = $event->profiling_command_queued
		1453
		1454	Calls C<clGetEventProfilingInfo> with C<CL_PROFILING_COMMAND_QUEUED> and returns the result.
		1455
		1456	=item $ulong = $event->profiling_command_submit
		1457
		1458	Calls C<clGetEventProfilingInfo> with C<CL_PROFILING_COMMAND_SUBMIT> and returns the result.
		1459
		1460	=item $ulong = $event->profiling_command_start
		1461
		1462	Calls C<clGetEventProfilingInfo> with C<CL_PROFILING_COMMAND_START> and returns the result.
		1463
		1464	=item $ulong = $event->profiling_command_end
		1465
		1466	Calls C<clGetEventProfilingInfo> with C<CL_PROFILING_COMMAND_END> and returns the result.
		1467
		1468	=for gengetinfo end profiling
608		1469
609	=back	1470	=back
610		1471
611	=head2 THE OpenCL::UserEvent CLASS	1472	=head2 THE OpenCL::UserEvent CLASS
612		1473
…		…
625	package OpenCL;	1486	package OpenCL;
626		1487
627	use common::sense;	1488	use common::sense;
628		1489
629	BEGIN {	1490	BEGIN {
630	our $VERSION = '0.03';	1491	our $VERSION = '0.96';
631		1492
632	require XSLoader;	1493	require XSLoader;
633	XSLoader::load (__PACKAGE__, $VERSION);	1494	XSLoader::load (__PACKAGE__, $VERSION);
634		1495
635	@OpenCL::Buffer::ISA =	1496	@OpenCL::Buffer::ISA =
636	@OpenCL::Image::ISA = OpenCL::Memory::;	1497	@OpenCL::Image::ISA = OpenCL::Memory::;
637		1498
		1499	@OpenCL::BufferObj::ISA = OpenCL::Buffer::;
		1500
638	@OpenCL::Image2D::ISA =	1501	@OpenCL::Image2D::ISA =
639	@OpenCL::Image3D::ISA = OpenCL::Image::;	1502	@OpenCL::Image3D::ISA = OpenCL::Image::;
640		1503
641	@OpenCL::UserEvent::ISA = OpenCL::Event::;	1504	@OpenCL::UserEvent::ISA = OpenCL::Event::;
642	}	1505	}
643		1506
644	1;	1507	1;
645		1508
646	=head1 AUTHOR	1509	=head1 AUTHOR

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