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Revision 1.8 by root, Wed Nov 16 06:22:20 2011 UTC vs.
Revision 1.49 by root, Sat Apr 21 20:48:03 2012 UTC

…		…
8		8
9	=head1 DESCRIPTION	9	=head1 DESCRIPTION
10		10
11	This is an early release which might be useful, but hasn't seen much testing.	11	This is an early release which might be useful, but hasn't seen much testing.
12		12
		13	=head2 OpenCL FROM 10000 FEET HEIGHT
		14
		15	Here is a high level overview of OpenCL:
		16
		17	First you need to find one or more OpenCL::Platforms (kind of like
		18	vendors) - usually there is only one.
		19
		20	Each platform gives you access to a number of OpenCL::Device objects, e.g.
		21	your graphics card.
		22
		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
		25	most other objects:
		26
		27	OpenCL::Program objects, which store source code and, after building for a
		28	specific device ("compiling and linking"), also binary programs. For each
		29	kernel function in a program you can then create an OpenCL::Kernel object
		30	which represents basically a function call with argument values.
		31
		32	OpenCL::Memory objects of various flavours: OpenCL::Buffer objects (flat
		33	memory areas, think arrays or structs) and OpenCL::Image objects (think 2d
		34	or 3d array) for bulk data and input and output for kernels.
		35
		36	OpenCL::Sampler objects, which are kind of like texture filter modes in
		37	OpenGL.
		38
		39	OpenCL::Queue objects - command queues, which allow you to submit memory
		40	reads, writes and copies, as well as kernel calls to your devices. They
		41	also offer a variety of methods to synchronise request execution, for
		42	example with barriers or OpenCL::Event objects.
		43
		44	OpenCL::Event objects are used to signal when something is complete.
		45
13	=head1 HELPFUL RESOURCES	46	=head2 HELPFUL RESOURCES
14		47
15	The OpenCL spec used to develop this module (1.2 spec was available, but	48	The OpenCL spec used to develop this module (1.2 spec was available, but
16	no implementation was available to me :).	49	no implementation was available to me :).
17		50
18	http://www.khronos.org/registry/cl/specs/opencl-1.1.pdf	51	http://www.khronos.org/registry/cl/specs/opencl-1.1.pdf
19		52
20	OpenCL manpages:	53	OpenCL manpages:
21		54
22	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/
23		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
		71	=head1 BASIC WORKFLOW
		72
		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):
		75
		76	Find some platform (e.g. the first one) and some device(s) (e.g. the first
		77	device of the platform), and create a context from those.
		78
		79	Create program objects from your OpenCL source code, then build (compile)
		80	the programs for each device you want to run them on.
		81
		82	Create kernel objects for all kernels you want to use (surprisingly, these
		83	are not device-specific).
		84
		85	Then, to execute stuff, you repeat these steps, possibly resuing or
		86	sharing some buffers:
		87
		88	Create some input and output buffers from your context. Set these as
		89	arguments to your kernel.
		90
		91	Enqueue buffer writes to initialise your input buffers (when not
		92	initialised at creation time).
		93
		94	Enqueue the kernel execution.
		95
		96	Enqueue buffer reads for your output buffer to read results.
		97
24	=head1 EXAMPLES	98	=head1 EXAMPLES
25		99
26	=head2 Enumerate all devices and get contexts for them.	100	=head2 Enumerate all devices and get contexts for them.
27		101
		102	Best run this once to get a feel for the platforms and devices in your
		103	system.
		104
28	for my $platform (OpenCL::platforms) {	105	for my $platform (OpenCL::platforms) {
29	warn $platform->info (OpenCL::PLATFORM_NAME);	106	printf "platform: %s\n", $platform->name;
30	warn $platform->info (OpenCL::PLATFORM_EXTENSIONS);	107	printf "extensions: %s\n", $platform->extensions;
31	for my $device ($platform->devices) {	108	for my $device ($platform->devices) {
32	warn $device->info (OpenCL::DEVICE_NAME);	109	printf "+ device: %s\n", $device->name;
33	my $ctx = $device->context_simple;	110	my $ctx = $platform->context (undef, [$device]);
34	# do stuff	111	# do stuff
35	}	112	}
36	}	113	}
37		114
38	=head2 Get a useful context and a command queue.	115	=head2 Get a useful context and a command queue.
39		116
40	my $dev = ((OpenCL::platforms)[0]->devices)[0];	117	This is a useful boilerplate for any OpenCL program that only wants to use
41	my $ctx = $dev->context_simple;	118	one device,
42	my $queue = $ctx->command_queue_simple ($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
43		124
44	=head2 Print all supported image formats of a context.	125	=head2 Print all supported image formats of a context.
45		126
		127	Best run this once for your context, to see whats available and how to
		128	gather information.
		129
46	for my $type (OpenCL::MEM_OBJECT_IMAGE2D, OpenCL::MEM_OBJECT_IMAGE3D) {	130	for my $type (OpenCL::MEM_OBJECT_IMAGE2D, OpenCL::MEM_OBJECT_IMAGE3D) {
47	say "supported image formats for ", OpenCL::enum2str $type;	131	print "supported image formats for ", OpenCL::enum2str $type, "\n";
48		132
49	for my $f ($ctx->supported_image_formats (0, $type)) {	133	for my $f ($ctx->supported_image_formats (0, $type)) {
50	printf " %-10s %-20s\n", OpenCL::enum2str $f->[0], OpenCL::enum2str $f->[1];	134	printf " %-10s %-20s\n", OpenCL::enum2str $f->[0], OpenCL::enum2str $f->[1];
51	}	135	}
52	}	136	}
…		…
55	then asynchronously.	139	then asynchronously.
56		140
57	my $buf = $ctx->buffer_sv (OpenCL::MEM_COPY_HOST_PTR, "helmut");	141	my $buf = $ctx->buffer_sv (OpenCL::MEM_COPY_HOST_PTR, "helmut");
58		142
59	$queue->enqueue_read_buffer ($buf, 1, 1, 3, my $data);	143	$queue->enqueue_read_buffer ($buf, 1, 1, 3, my $data);
60	warn $data;	144	print "$data\n";
61		145
62	my $ev = $queue->enqueue_read_buffer ($buf, 0, 1, 3, my $data);	146	my $ev = $queue->enqueue_read_buffer ($buf, 0, 1, 3, my $data);
63	$ev->wait;	147	$ev->wait;
64	warn $data;	148	print "$data\n"; # prints "elm"
65		149
66	=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
67	functions.	151	functions.
68		152
69	my $src = '	153	my $src = '
70	__kernel void	154	kernel void
71	squareit (__global float *input, __global float *output)	155	squareit (global float *input, global float *output)
72	{	156	{
73	size_t id = get_global_id (0);	157	$id = get_global_id (0);
74	output [id] = input [id] * input [id];	158	output [id] = input [id] * input [id];
75	}	159	}
76	';	160	';
77		161
78	my $prog = $ctx->program_with_source ($src);	162	my $prog = $ctx->program_with_source ($src);
79		163
80	eval { $prog->build ($dev); 1 }	164	# build croaks on compile errors, so catch it and print the compile errors
81	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;
82		167
83	my $kernel = $prog->kernel ("squareit");	168	my $kernel = $prog->kernel ("squareit");
84		169
85	=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.
86		172
87	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);
88	my $output = $ctx->buffer (0, OpenCL::SIZEOF_FLOAT * 5);	174	my $output = $ctx->buffer (0, OpenCL::SIZEOF_FLOAT * 5);
89		175
90	# set buffer	176	# set buffer
…		…
96		182
97	# enqueue a synchronous read	183	# enqueue a synchronous read
98	$queue->enqueue_read_buffer ($output, 1, 0, OpenCL::SIZEOF_FLOAT * 4, my $data);	184	$queue->enqueue_read_buffer ($output, 1, 0, OpenCL::SIZEOF_FLOAT * 4, my $data);
99		185
100	# print the results:	186	# print the results:
101	say join ", ", unpack "f*", $data;	187	printf "%s\n", join ", ", unpack "f*", $data;
102		188
103	=head2 The same enqueue operations as before, but assuming an out-of-order queue,	189	=head2 The same enqueue operations as before, but assuming an out-of-order queue,
104	showing off barriers.	190	showing off barriers.
105		191
106	# execute it for all 4 numbers	192	# execute it for all 4 numbers
…		…
125	$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);
126		212
127	# wait for the last event to complete	213	# wait for the last event to complete
128	$ev->wait;	214	$ev->wait;
129		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
130	=head1 DOCUMENTATION	311	=head1 DOCUMENTATION
131		312
132	=head2 BASIC CONVENTIONS	313	=head2 BASIC CONVENTIONS
133		314
134	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
135	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
136	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
137	differences between the OpenCL C API and this module:	318	differences between the OpenCL C API and this module:
138		319
139	=over 4	320	=over 4
140		321
141	=item * Object lifetime managament is automatic - there is no need	322	=item * Object lifetime managament is automatic - there is no need
142	to free objects explicitly (C<clReleaseXXX>), the release function	323	to free objects explicitly (C<clReleaseXXX>), the release function
143	is called automatically once all Perl references to it go away.	324	is called automatically once all Perl references to it go away.
144		325
145	=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
146	while this module uses underscores as word separator and often leaves out	328	uses underscores as word separator and often leaves out prefixes
147	prefixes (C<< $platform->info >>).	329	(C<OpenCL::platforms>, C<< $platform->info >>).
148		330
149	=item * OpenCL often specifies fixed vector function arguments as short	331	=item * OpenCL often specifies fixed vector function arguments as short
150	arrays (C<size_t origin[3]>), while this module explicitly expects the	332	arrays (C<size_t origin[3]>), while this module explicitly expects the
151	components as separate arguments-	333	components as separate arguments (C<$orig_x, $orig_y, $orig_z>) in
		334	function calls.
152		335
153	=item * Where possible, the row_pitch value is calculated from the perl	336	=item * Structures are often specified by flattening out their components
154	scalar length and need not be specified.	337	as with short vectors, and returned as arrayrefs.
155		338
156	=item * When enqueuing commands, the wait list is specified by adding	339	=item * When enqueuing commands, the wait list is specified by adding
157	extra arguments to the function - everywhere a C<$wait_events...> argument	340	extra arguments to the function - anywhere a C<$wait_events...> argument
158	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.
159		344
160	=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
161	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
162	by the method.	347	by the method.
163		348
…		…
183	ulong IV - Q	368	ulong IV - Q
184	float NV float f	369	float NV float f
185	half IV ushort S	370	half IV ushort S
186	double NV double d	371	double NV double d
187		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
188	=head2 THE OpenCL PACKAGE	388	=head2 THE OpenCL PACKAGE
189		389
190	=over 4	390	=over 4
191		391
192	=item $int = OpenCL::errno	392	=item $int = OpenCL::errno
193		393
194	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.
195		396
196	=item $str = OpenCL::err2str $errval	397	=item $str = OpenCL::err2str $errval
197		398
198	Comverts an error value into a human readable string.	399	Comverts an error value into a human readable string.
199		400
200	=item $str = OpenCL::err2str $enum	401	=item $str = OpenCL::enum2str $enum
201		402
202	Converts most enum values (inof parameter names, image format constants,	403	Converts most enum values (of parameter names, image format constants,
203	object types, addressing and filter modes, command types etc.) into a	404	object types, addressing and filter modes, command types etc.) into a
204	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
205	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
206	string out of it.	407	string out of it.
207		408
208	=item @platforms = OpenCL::platforms	409	=item @platforms = OpenCL::platforms
209		410
210	Returns all available OpenCL::Platform objects.	411	Returns all available OpenCL::Platform objects.
211		412
212	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetPlatformIDs.html>	413	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetPlatformIDs.html>
213		414
214	=item $ctx = OpenCL::context_from_type_simple $type = OpenCL::DEVICE_TYPE_DEFAULT	415	=item $ctx = OpenCL::context_from_type $properties, $type = OpenCL::DEVICE_TYPE_DEFAULT, $notify = undef
215		416
216	Tries to create a context from a default device and platform - never worked for me.	417	Tries to create a context from a default device and platform - never worked for me.
217		418
218	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateContextFromType.html>	419	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateContextFromType.html>
219		420
…		…
227		428
228	=head2 THE OpenCL::Platform CLASS	429	=head2 THE OpenCL::Platform CLASS
229		430
230	=over 4	431	=over 4
231		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
232	=item $packed_value = $platform->info ($name)	450	=item $packed_value = $platform->info ($name)
233		451
234	Calls C<clGetPlatformInfo> and returns the packed, raw value - for	452	Calls C<clGetPlatformInfo> and returns the packed, raw value - for
235	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
236	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.
237		458
238	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>
239		460
240	=item @devices = $platform->devices ($type = OpenCL::DEVICE_TYPE_ALL)	461	=for gengetinfo begin platform
241		462
242	Returns a list of matching OpenCL::Device objects.	463	=item $string = $platform->profile
243		464
244	=item $ctx = $platform->context_from_type_simple ($type = OpenCL::DEVICE_TYPE_DEFAULT)	465	Calls C<clGetPlatformInfo> with C<CL_PLATFORM_PROFILE> and returns the result.
245		466
246	Tries to create a context. Never worked for me.	467	=item $string = $platform->version
247		468
248	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
249		484
250	=back	485	=back
251		486
252	=head2 THE OpenCL::Device CLASS	487	=head2 THE OpenCL::Device CLASS
253		488
…		…
257		492
258	See C<< $platform->info >> for details.	493	See C<< $platform->info >> for details.
259		494
260	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>
261		496
		497	=for gengetinfo begin device
		498
		499	=item $device_type = $device->type
		500
		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
262	=item $ctx = $device->context_simple	595	=item $uint = $device->max_samplers
263		596
264	Convenience function to create a new OpenCL::Context object.	597	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_SAMPLERS> and returns the result.
265		598
266	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateContext.html>	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
267		764
268	=back	765	=back
269		766
270	=head2 THE OpenCL::Context CLASS	767	=head2 THE OpenCL::Context CLASS
271		768
272	=over 4	769	=over 4
273		770
274	=item $packed_value = $ctx->info ($name)	771	=item $queue = $ctx->queue ($device, $properties)
275		772
276	See C<< $platform->info >> for details.
277
278	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetContextInfo.html>
279
280	=item $queue = $ctx->command_queue_simple ($device)
281
282	Convenience function to 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.
283		774
284	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>
285		776
		777	Example: create an out-of-order queue.
		778
		779	$queue = $ctx->queue ($device, OpenCL::QUEUE_OUT_OF_ORDER_EXEC_MODE_ENABLE);
		780
286	=item $ev = $ctx->user_event	781	=item $ev = $ctx->user_event
287		782
288	Creates a new OpenCL::UserEvent object.	783	Creates a new OpenCL::UserEvent object.
289		784
290	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>
291		786
292	=item $buf = $ctx->buffer ($flags, $len)	787	=item $buf = $ctx->buffer ($flags, $len)
293		788
294	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.
295		791
296	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>
297		793
298	=item $buf = $ctx->buffer_sv ($flags, $data)	794	=item $buf = $ctx->buffer_sv ($flags, $data)
299		795
300	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.
301		798
		799	=item $img = $ctx->image ($self, $flags, $channel_order, $channel_type, $type, $width, $height, $depth, $array_size = 0, $row_pitch = 0, $slice_pitch = 0, $num_mip_level = 0, $num_samples = 0, $*data = &PL_sv_undef)
		800
		801	Creates a new OpenCL::Image object and optionally initialises it with
		802	the given data values.
		803
		804	L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clCreateImage.html>
		805
302	=item $img = $ctx->image2d ($flags, $channel_order, $channel_type, $width, $height, $data)	806	=item $img = $ctx->image2d ($flags, $channel_order, $channel_type, $width, $height, $row_pitch = 0, $data = undef)
303		807
304	Creates a new OpenCL::Image2D object and optionally initialises it with the given data values.	808	Creates a new OpenCL::Image2D object and optionally initialises it with
		809	the given data values.
305		810
306	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateImage2D.html>	811	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateImage2D.html>
307		812
308	=item $img = $ctx->image3d ($flags, $channel_order, $channel_type, $width, $height, $depth, $slice_pitch, $data)	813	=item $img = $ctx->image3d ($flags, $channel_order, $channel_type, $width, $height, $depth, $row_pitch = 0, $slice_pitch = 0, $data = undef)
309		814
310	Creates a new OpenCL::Image3D object and optionally initialises it with the given data values.	815	Creates a new OpenCL::Image3D object and optionally initialises it with
		816	the given data values.
311		817
312	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateImage3D.html>	818	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateImage3D.html>
		819
		820	=item $buffer = $ctx->gl_buffer ($flags, $bufobj)
		821
		822	Creates a new OpenCL::Buffer (actually OpenCL::BufferObj) object that refers to the given
		823	OpenGL buffer object.
		824
		825	http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateFromGLBuffer.html
		826
		827	=item $img = $ctx->gl_texture ($flags, $target, $miplevel, $texture)
		828
		829	Creates a new OpenCL::Image object that refers to the given OpenGL
		830	texture object or buffer.
		831
		832	http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clCreateFromGLTexture.html
		833
		834	=item $img = $ctx->gl_texture2d ($flags, $target, $miplevel, $texture)
		835
		836	Creates a new OpenCL::Image2D object that refers to the given OpenGL
		837	2D texture object.
		838
		839	http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateFromGLTexture2D.html
		840
		841	=item $img = $ctx->gl_texture3d ($flags, $target, $miplevel, $texture)
		842
		843	Creates a new OpenCL::Image3D object that refers to the given OpenGL
		844	3D texture object.
		845
		846	http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateFromGLTexture3D.html
		847
		848	=item $ctx->gl_renderbuffer ($flags, $renderbuffer)
		849
		850	Creates a new OpenCL::Image2D object that refers to the given OpenGL
		851	render buffer.
		852
		853	http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateFromGLRenderbuffer.html
313		854
314	=item @formats = $ctx->supported_image_formats ($flags, $image_type)	855	=item @formats = $ctx->supported_image_formats ($flags, $image_type)
315		856
316	Returns a list of matching image formats - each format is an arrayref with	857	Returns a list of matching image formats - each format is an arrayref with
317	two values, $channel_order and $channel_type, in it.	858	two values, $channel_order and $channel_type, in it.
…		…
327	=item $program = $ctx->program_with_source ($string)	868	=item $program = $ctx->program_with_source ($string)
328		869
329	Creates a new OpenCL::Program object from the given source code.	870	Creates a new OpenCL::Program object from the given source code.
330		871
331	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateProgramWithSource.html>	872	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateProgramWithSource.html>
		873
		874	=item $packed_value = $ctx->info ($name)
		875
		876	See C<< $platform->info >> for details.
		877
		878	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetContextInfo.html>
		879
		880	=for gengetinfo begin context
		881
		882	=item $uint = $context->reference_count
		883
		884	Calls C<clGetContextInfo> with C<CL_CONTEXT_REFERENCE_COUNT> and returns the result.
		885
		886	=item @devices = $context->devices
		887
		888	Calls C<clGetContextInfo> with C<CL_CONTEXT_DEVICES> and returns the result.
		889
		890	=item @property_ints = $context->properties
		891
		892	Calls C<clGetContextInfo> with C<CL_CONTEXT_PROPERTIES> and returns the result.
		893
		894	=item $uint = $context->num_devices
		895
		896	Calls C<clGetContextInfo> with C<CL_CONTEXT_NUM_DEVICES> and returns the result.
		897
		898	=for gengetinfo end context
332		899
333	=back	900	=back
334		901
335	=head2 THE OpenCL::Queue CLASS	902	=head2 THE OpenCL::Queue CLASS
336		903
…		…
342	for completion, unless the method is called in void context, in which case	909	for completion, unless the method is called in void context, in which case
343	no event object is created.	910	no event object is created.
344		911
345	They also allow you to specify any number of other event objects that this	912	They also allow you to specify any number of other event objects that this
346	request has to wait for before it starts executing, by simply passing the	913	request has to wait for before it starts executing, by simply passing the
347	event objects as extra parameters to the enqueue methods.	914	event objects as extra parameters to the enqueue methods. To simplify
		915	program design, this module ignores any C<undef> values in the list of
		916	events. This makes it possible to code operations such as this, without
		917	having to put a valid event object into C<$event> first:
		918
		919	$event = $queue->enqueue_xxx (..., $event);
348		920
349	Queues execute in-order by default, without any parallelism, so in most	921	Queues execute in-order by default, without any parallelism, so in most
350	cases (i.e. you use only one queue) it's not necessary to wait for or	922	cases (i.e. you use only one queue) it's not necessary to wait for or
351	create event objects.	923	create event objects, althoguh an our of order queue is often a bit
		924	faster.
352		925
353	=over 4	926	=over 4
354		927
355	=item $packed_value = $ctx->info ($name)
356
357	See C<< $platform->info >> for details.
358
359	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetCommandQueueInfo.html>
360
361	=item $ev = $queue->enqueue_read_buffer ($buffer, $blocking, $offset, $len, $data, $wait_events...)	928	=item $ev = $queue->enqueue_read_buffer ($buffer, $blocking, $offset, $len, $data, $wait_events...)
362		929
363	Reads data from buffer into the given string.	930	Reads data from buffer into the given string.
364		931
365	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReadBuffer.html>	932	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReadBuffer.html>
…		…
372		939
373	=item $ev = $queue->enqueue_copy_buffer ($src, $dst, $src_offset, $dst_offset, $len, $wait_events...)	940	=item $ev = $queue->enqueue_copy_buffer ($src, $dst, $src_offset, $dst_offset, $len, $wait_events...)
374		941
375	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyBuffer.html>	942	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyBuffer.html>
376		943
		944	=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...)
		945
		946	http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReadBufferRect.html
		947
		948	=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...)
		949
		950	http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWriteBufferRect.html
		951
377	=item $ev = $queue->enqueue_read_image ($src, $blocking, $x, $y, $z, $width, $height, $depth, $row_pitch, $slice_pitch, $data, $wait_events...)	952	=item $ev = $queue->enqueue_read_image ($src, $blocking, $x, $y, $z, $width, $height, $depth, $row_pitch, $slice_pitch, $data, $wait_events...)
378		953
		954	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyBufferRect.html>
		955
		956	=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...)
		957
379	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReadImage.html>	958	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReadImage.html>
380		959
381	=item $ev = $queue->enqueue_write_image ($src, $blocking, $x, $y, $z, $width, $height, $depth, $row_pitch, $data, $wait_events...)	960	=item $ev = $queue->enqueue_write_image ($src, $blocking, $x, $y, $z, $width, $height, $depth, $row_pitch, $slice_pitch, $data, $wait_events...)
382		961
383	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWriteImage.html>	962	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWriteImage.html>
384		963
		964	=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...)
		965
		966	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyImage.html>
		967
		968	=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...)
		969
		970	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyImageToBuffer.html>
		971
385	=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...)	972	=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...)
386		973
387	Yeah.	974	Yeah.
388		975
389	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyBufferRect.html>
390
391	=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, ...)
392
393	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyBufferToImage.html>.	976	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyBufferToImage.html>.
394
395	=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, ...)
396
397	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyImage.html>
398
399	=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, ...)
400
401	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyImageToBuffer.html>
402		977
403	=item $ev = $queue->enqueue_task ($kernel, $wait_events...)	978	=item $ev = $queue->enqueue_task ($kernel, $wait_events...)
404		979
405	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueTask.html>	980	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueTask.html>
406		981
…		…
420	reference to an array of local work sizes, with the same number of	995	reference to an array of local work sizes, with the same number of
421	elements as @$global_work_size.	996	elements as @$global_work_size.
422		997
423	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueNDRangeKernel.html>	998	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueNDRangeKernel.html>
424		999
425	=item $ev = $queue->enqueue_marker	1000	=item $ev = $queue->enqueue_acquire_gl_objects ([object, ...], $wait_events...)
426		1001
		1002	Enqueues a list (an array-ref of OpenCL::Memory objects) to be acquired
		1003	for subsequent OpenCL usage.
		1004
427	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueMarker.html>	1005	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueAcquireGLObjects.html>
		1006
		1007	=item $ev = $queue->enqueue_release_gl_objects ([object, ...], $wait_events...)
		1008
		1009	Enqueues a list (an array-ref of OpenCL::Memory objects) to be released
		1010	for subsequent OpenGL usage.
		1011
		1012	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReleaseGLObjects.html>
428		1013
429	=item $ev = $queue->enqueue_wait_for_events ($wait_events...)	1014	=item $ev = $queue->enqueue_wait_for_events ($wait_events...)
430		1015
431	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWaitForEvents.html>	1016	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWaitForEvents.html>
432		1017
433	=item $queue->enqueue_barrier	1018	=item $ev = $queue->enqueue_marker ($wait_events...)
434		1019
		1020	L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clEnqueueMarkerWithWaitList.html>
		1021
		1022	=item $ev = $queue->enqueue_barrier ($wait_events...)
		1023
435	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueBarrier.html>	1024	L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clEnqueueBarrierWithWaitList.html>
436		1025
437	=item $queue->flush	1026	=item $queue->flush
438		1027
439	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clFlush.html>	1028	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clFlush.html>
440		1029
441	=item $queue->finish	1030	=item $queue->finish
442		1031
443	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clFinish.html>	1032	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clFinish.html>
444		1033
		1034	=item $packed_value = $queue->info ($name)
		1035
		1036	See C<< $platform->info >> for details.
		1037
		1038	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetCommandQueueInfo.html>
		1039
		1040	=for gengetinfo begin command_queue
		1041
		1042	=item $ctx = $command_queue->context
		1043
		1044	Calls C<clGetCommandQueueInfo> with C<CL_QUEUE_CONTEXT> and returns the result.
		1045
		1046	=item $device = $command_queue->device
		1047
		1048	Calls C<clGetCommandQueueInfo> with C<CL_QUEUE_DEVICE> and returns the result.
		1049
		1050	=item $uint = $command_queue->reference_count
		1051
		1052	Calls C<clGetCommandQueueInfo> with C<CL_QUEUE_REFERENCE_COUNT> and returns the result.
		1053
		1054	=item $command_queue_properties = $command_queue->properties
		1055
		1056	Calls C<clGetCommandQueueInfo> with C<CL_QUEUE_PROPERTIES> and returns the result.
		1057
		1058	=for gengetinfo end command_queue
		1059
445	=back	1060	=back
446		1061
447	=head2 THE OpenCL::Memory CLASS	1062	=head2 THE OpenCL::Memory CLASS
448		1063
449	This the superclass of all memory objects - OpenCL::Buffer, OpenCL::Image,	1064	This the superclass of all memory objects - OpenCL::Buffer, OpenCL::Image,
450	OpenCL::Image2D and OpenCL::Image3D. The subclasses of this class	1065	OpenCL::Image2D and OpenCL::Image3D.
451	currently only exist to allow type-checking.
452		1066
453	=over 4	1067	=over 4
454		1068
455	=item $packed_value = $memory->info ($name)	1069	=item $packed_value = $memory->info ($name)
456		1070
457	See C<< $platform->info >> for details.	1071	See C<< $platform->info >> for details.
458		1072
459	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetMemObjectInfo.html>	1073	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetMemObjectInfo.html>
460		1074
		1075	=for gengetinfo begin mem
		1076
		1077	=item $mem_object_type = $mem->type
		1078
		1079	Calls C<clGetMemObjectInfo> with C<CL_MEM_TYPE> and returns the result.
		1080
		1081	=item $mem_flags = $mem->flags
		1082
		1083	Calls C<clGetMemObjectInfo> with C<CL_MEM_FLAGS> and returns the result.
		1084
		1085	=item $int = $mem->size
		1086
		1087	Calls C<clGetMemObjectInfo> with C<CL_MEM_SIZE> and returns the result.
		1088
		1089	=item $ptr_value = $mem->host_ptr
		1090
		1091	Calls C<clGetMemObjectInfo> with C<CL_MEM_HOST_PTR> and returns the result.
		1092
		1093	=item $uint = $mem->map_count
		1094
		1095	Calls C<clGetMemObjectInfo> with C<CL_MEM_MAP_COUNT> and returns the result.
		1096
		1097	=item $uint = $mem->reference_count
		1098
		1099	Calls C<clGetMemObjectInfo> with C<CL_MEM_REFERENCE_COUNT> and returns the result.
		1100
		1101	=item $ctx = $mem->context
		1102
		1103	Calls C<clGetMemObjectInfo> with C<CL_MEM_CONTEXT> and returns the result.
		1104
		1105	=item $mem = $mem->associated_memobject
		1106
		1107	Calls C<clGetMemObjectInfo> with C<CL_MEM_ASSOCIATED_MEMOBJECT> and returns the result.
		1108
		1109	=item $int = $mem->offset
		1110
		1111	Calls C<clGetMemObjectInfo> with C<CL_MEM_OFFSET> and returns the result.
		1112
		1113	=for gengetinfo end mem
		1114
		1115	=item ($type, $name) = $mem->gl_object_info
		1116
		1117	Returns the OpenGL object type (e.g. OpenCL::GL_OBJECT_TEXTURE2D) and the
		1118	object "name" (e.g. the texture name) used to create this memory object.
		1119
		1120	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetGLObjectInfo.html>
		1121
461	=back	1122	=back
462		1123
		1124	=head2 THE OpenCL::Buffer CLASS
		1125
		1126	This is a subclass of OpenCL::Memory, and the superclass of
		1127	OpenCL::BufferObj. Its purpose is simply to distinguish between buffers
		1128	and sub-buffers.
		1129
		1130	=head2 THE OpenCL::BufferObj CLASS
		1131
		1132	This is a subclass of OpenCL::Buffer and thus OpenCL::Memory. It exists
		1133	because one cna create sub buffers of OpenLC::BufferObj objects, but not
		1134	sub buffers from these sub buffers.
		1135
		1136	=over 4
		1137
		1138	=item $subbuf = $buf_obj->sub_buffer_region ($flags, $origin, $size)
		1139
		1140	Creates an OpenCL::Buffer objects from this buffer and returns it. The
		1141	C<buffer_create_type> is assumed to be C<CL_BUFFER_CREATE_TYPE_REGION>.
		1142
		1143	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateSubBuffer.html>
		1144
		1145	=back
		1146
		1147	=head2 THE OpenCL::Image CLASS
		1148
		1149	This is the superclass of all image objects - OpenCL::Image1D,
		1150	OpenCL::Image1DArray, OpenCL::Image1DBuffer, OpenCL::Image2D,
		1151	OpenCL::Image2DArray and OpenCL::Image3D.
		1152
		1153	=over 4
		1154
		1155	=item $packed_value = $ev->image_info ($name)
		1156
		1157	See C<< $platform->info >> for details.
		1158
		1159	The reason this method is not called C<info> is that there already is an
		1160	C<< ->info >> method inherited from C<OpenCL::Memory>.
		1161
		1162	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetImageInfo.html>
		1163
		1164	=for gengetinfo begin image
		1165
		1166	=item $int = $image->element_size
		1167
		1168	Calls C<clGetImageInfo> with C<CL_IMAGE_ELEMENT_SIZE> and returns the result.
		1169
		1170	=item $int = $image->row_pitch
		1171
		1172	Calls C<clGetImageInfo> with C<CL_IMAGE_ROW_PITCH> and returns the result.
		1173
		1174	=item $int = $image->slice_pitch
		1175
		1176	Calls C<clGetImageInfo> with C<CL_IMAGE_SLICE_PITCH> and returns the result.
		1177
		1178	=item $int = $image->width
		1179
		1180	Calls C<clGetImageInfo> with C<CL_IMAGE_WIDTH> and returns the result.
		1181
		1182	=item $int = $image->height
		1183
		1184	Calls C<clGetImageInfo> with C<CL_IMAGE_HEIGHT> and returns the result.
		1185
		1186	=item $int = $image->depth
		1187
		1188	Calls C<clGetImageInfo> with C<CL_IMAGE_DEPTH> and returns the result.
		1189
		1190	=for gengetinfo end image
		1191
		1192	=for gengetinfo begin gl_texture
		1193
		1194	=item $GLenum = $gl_texture->target
		1195
		1196	Calls C<clGetGLTextureInfo> with C<CL_GL_TEXTURE_TARGET> and returns the result.
		1197
		1198	=item $GLint = $gl_texture->gl_mipmap_level
		1199
		1200	Calls C<clGetGLTextureInfo> with C<CL_GL_MIPMAP_LEVEL> and returns the result.
		1201
		1202	=for gengetinfo end gl_texture
		1203
		1204	=back
		1205
463	=head2 THE OpenCL::Sampler CLASS	1206	=head2 THE OpenCL::Sampler CLASS
464		1207
465	=over 4	1208	=over 4
466		1209
467	=item $packed_value = $sampler->info ($name)	1210	=item $packed_value = $sampler->info ($name)
468		1211
469	See C<< $platform->info >> for details.	1212	See C<< $platform->info >> for details.
470		1213
471	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetSamplerInfo.html>	1214	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetSamplerInfo.html>
472		1215
		1216	=for gengetinfo begin sampler
		1217
		1218	=item $uint = $sampler->reference_count
		1219
		1220	Calls C<clGetSamplerInfo> with C<CL_SAMPLER_REFERENCE_COUNT> and returns the result.
		1221
		1222	=item $ctx = $sampler->context
		1223
		1224	Calls C<clGetSamplerInfo> with C<CL_SAMPLER_CONTEXT> and returns the result.
		1225
		1226	=item $addressing_mode = $sampler->normalized_coords
		1227
		1228	Calls C<clGetSamplerInfo> with C<CL_SAMPLER_NORMALIZED_COORDS> and returns the result.
		1229
		1230	=item $filter_mode = $sampler->addressing_mode
		1231
		1232	Calls C<clGetSamplerInfo> with C<CL_SAMPLER_ADDRESSING_MODE> and returns the result.
		1233
		1234	=item $boolean = $sampler->filter_mode
		1235
		1236	Calls C<clGetSamplerInfo> with C<CL_SAMPLER_FILTER_MODE> and returns the result.
		1237
		1238	=for gengetinfo end sampler
		1239
473	=back	1240	=back
474		1241
475	=head2 THE OpenCL::Program CLASS	1242	=head2 THE OpenCL::Program CLASS
476		1243
477	=over 4	1244	=over 4
478
479	=item $packed_value = $program->info ($name)
480
481	See C<< $platform->info >> for details.
482
483	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetProgramInfo.html>
484		1245
485	=item $program->build ($device, $options = "")	1246	=item $program->build ($device, $options = "")
486		1247
487	Tries to build the program with the givne options.	1248	Tries to build the program with the givne options.
488		1249
…		…
500	Creates an OpenCL::Kernel object out of the named C<__kernel> function in	1261	Creates an OpenCL::Kernel object out of the named C<__kernel> function in
501	the program.	1262	the program.
502		1263
503	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateKernel.html>	1264	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateKernel.html>
504		1265
		1266	=for gengetinfo begin program_build
		1267
		1268	=item $build_status = $program->build_status ($device)
		1269
		1270	Calls C<clGetProgramBuildInfo> with C<CL_PROGRAM_BUILD_STATUS> and returns the result.
		1271
		1272	=item $string = $program->build_options ($device)
		1273
		1274	Calls C<clGetProgramBuildInfo> with C<CL_PROGRAM_BUILD_OPTIONS> and returns the result.
		1275
		1276	=item $string = $program->build_log ($device)
		1277
		1278	Calls C<clGetProgramBuildInfo> with C<CL_PROGRAM_BUILD_LOG> and returns the result.
		1279
		1280	=for gengetinfo end program_build
		1281
		1282	=item $packed_value = $program->info ($name)
		1283
		1284	See C<< $platform->info >> for details.
		1285
		1286	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetProgramInfo.html>
		1287
		1288	=for gengetinfo begin program
		1289
		1290	=item $uint = $program->reference_count
		1291
		1292	Calls C<clGetProgramInfo> with C<CL_PROGRAM_REFERENCE_COUNT> and returns the result.
		1293
		1294	=item $ctx = $program->context
		1295
		1296	Calls C<clGetProgramInfo> with C<CL_PROGRAM_CONTEXT> and returns the result.
		1297
		1298	=item $uint = $program->num_devices
		1299
		1300	Calls C<clGetProgramInfo> with C<CL_PROGRAM_NUM_DEVICES> and returns the result.
		1301
		1302	=item @devices = $program->devices
		1303
		1304	Calls C<clGetProgramInfo> with C<CL_PROGRAM_DEVICES> and returns the result.
		1305
		1306	=item $string = $program->source
		1307
		1308	Calls C<clGetProgramInfo> with C<CL_PROGRAM_SOURCE> and returns the result.
		1309
		1310	=item @ints = $program->binary_sizes
		1311
		1312	Calls C<clGetProgramInfo> with C<CL_PROGRAM_BINARY_SIZES> and returns the result.
		1313
		1314	=for gengetinfo end program
		1315
		1316	=item @blobs = $program->binaries
		1317
		1318	Returns a string for the compiled binary for every device associated with
		1319	the program, empty strings indicate missing programs, and an empty result
		1320	means no program binaries are available.
		1321
		1322	These "binaries" are often, in fact, informative low-level assembly
		1323	sources.
		1324
		1325	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetProgramInfo.html>
		1326
505	=back	1327	=back
506		1328
507	=head2 THE OpenCL::Kernel CLASS	1329	=head2 THE OpenCL::Kernel CLASS
508		1330
509	=over 4	1331	=over 4
…		…
511	=item $packed_value = $kernel->info ($name)	1333	=item $packed_value = $kernel->info ($name)
512		1334
513	See C<< $platform->info >> for details.	1335	See C<< $platform->info >> for details.
514		1336
515	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetKernelInfo.html>	1337	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetKernelInfo.html>
		1338
		1339	=for gengetinfo begin kernel
		1340
		1341	=item $string = $kernel->function_name
		1342
		1343	Calls C<clGetKernelInfo> with C<CL_KERNEL_FUNCTION_NAME> and returns the result.
		1344
		1345	=item $uint = $kernel->num_args
		1346
		1347	Calls C<clGetKernelInfo> with C<CL_KERNEL_NUM_ARGS> and returns the result.
		1348
		1349	=item $uint = $kernel->reference_count
		1350
		1351	Calls C<clGetKernelInfo> with C<CL_KERNEL_REFERENCE_COUNT> and returns the result.
		1352
		1353	=item $ctx = $kernel->context
		1354
		1355	Calls C<clGetKernelInfo> with C<CL_KERNEL_CONTEXT> and returns the result.
		1356
		1357	=item $program = $kernel->program
		1358
		1359	Calls C<clGetKernelInfo> with C<CL_KERNEL_PROGRAM> and returns the result.
		1360
		1361	=for gengetinfo end kernel
		1362
		1363	=item $packed_value = $kernel->work_group_info ($device, $name)
		1364
		1365	See C<< $platform->info >> for details.
		1366
		1367	The reason this method is not called C<info> is that there already is an
		1368	C<< ->info >> method.
		1369
		1370	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetKernelWorkGroupInfo.html>
		1371
		1372	=for gengetinfo begin kernel_work_group
		1373
		1374	=item $int = $kernel->work_group_size ($device)
		1375
		1376	Calls C<clGetKernelWorkGroupInfo> with C<CL_KERNEL_WORK_GROUP_SIZE> and returns the result.
		1377
		1378	=item @ints = $kernel->compile_work_group_size ($device)
		1379
		1380	Calls C<clGetKernelWorkGroupInfo> with C<CL_KERNEL_COMPILE_WORK_GROUP_SIZE> and returns the result.
		1381
		1382	=item $ulong = $kernel->local_mem_size ($device)
		1383
		1384	Calls C<clGetKernelWorkGroupInfo> with C<CL_KERNEL_LOCAL_MEM_SIZE> and returns the result.
		1385
		1386	=item $int = $kernel->preferred_work_group_size_multiple ($device)
		1387
		1388	Calls C<clGetKernelWorkGroupInfo> with C<CL_KERNEL_PREFERRED_WORK_GROUP_SIZE_MULTIPLE> and returns the result.
		1389
		1390	=item $ulong = $kernel->private_mem_size ($device)
		1391
		1392	Calls C<clGetKernelWorkGroupInfo> with C<CL_KERNEL_PRIVATE_MEM_SIZE> and returns the result.
		1393
		1394	=for gengetinfo end kernel_work_group
516		1395
517	=item $kernel->set_TYPE ($index, $value)	1396	=item $kernel->set_TYPE ($index, $value)
518		1397
519	This is a family of methods to set the kernel argument with the number C<$index> to the give C<$value>.	1398	This is a family of methods to set the kernel argument with the number C<$index> to the give C<$value>.
520		1399
521	TYPE is one of C<char>, C<uchar>, C<short>, C<ushort>, C<int>, C<uint>,	1400	TYPE is one of C<char>, C<uchar>, C<short>, C<ushort>, C<int>, C<uint>,
522	C<long>, C<ulong>, C<half>, C<float>, C<double>, C<memory>, C<buffer>,	1401	C<long>, C<ulong>, C<half>, C<float>, C<double>, C<memory>, C<buffer>,
523	C<image2d>, C<image3d>, C<sampler> or C<event>.	1402	C<image2d>, C<image3d>, C<sampler>, C<local> or C<event>.
524		1403
525	Chars and integers (including the half type) are specified as integers,	1404	Chars and integers (including the half type) are specified as integers,
526	float and double as floating point values, memory/buffer/image2d/image3d	1405	float and double as floating point values, memory/buffer/image2d/image3d
527	must be an object of that type or C<undef>, and sampler and event must be	1406	must be an object of that type or C<undef>, local-memory arguments are
528	objects of that type.	1407	set by specifying the size, and sampler and event must be objects of that
		1408	type.
529		1409
530	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clSetKernelArg.html>	1410	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clSetKernelArg.html>
531		1411
532	=back	1412	=back
533		1413
…		…
536	This is the superclass for all event objects (including OpenCL::UserEvent	1416	This is the superclass for all event objects (including OpenCL::UserEvent
537	objects).	1417	objects).
538		1418
539	=over 4	1419	=over 4
540		1420
		1421	=item $ev->wait
		1422
		1423	Waits for the event to complete.
		1424
		1425	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clWaitForEvents.html>
		1426
541	=item $packed_value = $ev->info ($name)	1427	=item $packed_value = $ev->info ($name)
542		1428
543	See C<< $platform->info >> for details.	1429	See C<< $platform->info >> for details.
544		1430
545	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetEventInfo.html>	1431	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetEventInfo.html>
546		1432
547	=item $ev->wait	1433	=for gengetinfo begin event
548		1434
549	Waits for the event to complete.	1435	=item $queue = $event->command_queue
550		1436
		1437	Calls C<clGetEventInfo> with C<CL_EVENT_COMMAND_QUEUE> and returns the result.
		1438
		1439	=item $command_type = $event->command_type
		1440
		1441	Calls C<clGetEventInfo> with C<CL_EVENT_COMMAND_TYPE> and returns the result.
		1442
		1443	=item $uint = $event->reference_count
		1444
		1445	Calls C<clGetEventInfo> with C<CL_EVENT_REFERENCE_COUNT> and returns the result.
		1446
		1447	=item $uint = $event->command_execution_status
		1448
		1449	Calls C<clGetEventInfo> with C<CL_EVENT_COMMAND_EXECUTION_STATUS> and returns the result.
		1450
		1451	=item $ctx = $event->context
		1452
		1453	Calls C<clGetEventInfo> with C<CL_EVENT_CONTEXT> and returns the result.
		1454
		1455	=for gengetinfo end event
		1456
		1457	=item $packed_value = $ev->profiling_info ($name)
		1458
		1459	See C<< $platform->info >> for details.
		1460
		1461	The reason this method is not called C<info> is that there already is an
		1462	C<< ->info >> method.
		1463
551	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clWaitForEvents.html>	1464	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetProfilingInfo.html>
		1465
		1466	=for gengetinfo begin profiling
		1467
		1468	=item $ulong = $event->profiling_command_queued
		1469
		1470	Calls C<clGetEventProfilingInfo> with C<CL_PROFILING_COMMAND_QUEUED> and returns the result.
		1471
		1472	=item $ulong = $event->profiling_command_submit
		1473
		1474	Calls C<clGetEventProfilingInfo> with C<CL_PROFILING_COMMAND_SUBMIT> and returns the result.
		1475
		1476	=item $ulong = $event->profiling_command_start
		1477
		1478	Calls C<clGetEventProfilingInfo> with C<CL_PROFILING_COMMAND_START> and returns the result.
		1479
		1480	=item $ulong = $event->profiling_command_end
		1481
		1482	Calls C<clGetEventProfilingInfo> with C<CL_PROFILING_COMMAND_END> and returns the result.
		1483
		1484	=for gengetinfo end profiling
552		1485
553	=back	1486	=back
554		1487
555	=head2 THE OpenCL::UserEvent CLASS	1488	=head2 THE OpenCL::UserEvent CLASS
556		1489
…		…
569	package OpenCL;	1502	package OpenCL;
570		1503
571	use common::sense;	1504	use common::sense;
572		1505
573	BEGIN {	1506	BEGIN {
574	our $VERSION = '0.03';	1507	our $VERSION = '0.96';
575		1508
576	require XSLoader;	1509	require XSLoader;
577	XSLoader::load (__PACKAGE__, $VERSION);	1510	XSLoader::load (__PACKAGE__, $VERSION);
578		1511
579	@OpenCL::Buffer::ISA =	1512	@OpenCL::Buffer::ISA =
580	@OpenCL::Image::ISA = OpenCL::Memory::;	1513	@OpenCL::Image::ISA = OpenCL::Memory::;
581		1514
		1515	@OpenCL::BufferObj::ISA = OpenCL::Buffer::;
		1516
582	@OpenCL::Image2D::ISA =	1517	@OpenCL::Image2D::ISA =
		1518	@OpenCL::Image3D::ISA =
		1519	@OpenCL::Image2DArray::ISA =
		1520	@OpenCL::Image1D::ISA =
		1521	@OpenCL::Image1DArray::ISA =
583	@OpenCL::Image3D::ISA = OpenCL::Image::;	1522	@OpenCL::Image1DBuffer::ISA = OpenCL::Image::;
584		1523
585	@OpenCL::UserEvent::ISA = OpenCL::Event::;	1524	@OpenCL::UserEvent::ISA = OpenCL::Event::;
586	}	1525	}
587		1526
588	1;	1527	1;
589		1528
590	=head1 AUTHOR	1529	=head1 AUTHOR

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