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

Comparing OpenCL/OpenCL.pm (file contents):
Revision 1.6 by root, Wed Nov 16 00:36:40 2011 UTC vs.
Revision 1.35 by root, Thu Apr 19 13:18:31 2012 UTC

…		…
6		6
7	use OpenCL;	7	use OpenCL;
8		8
9	=head1 DESCRIPTION	9	=head1 DESCRIPTION
10		10
11	This is an early release which might be useful, but hasn't seen any 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
		164	# build croaks on compile errors, so catch it and print the compile errors
80	eval { $prog->build ($dev); 1 }	165	eval { $prog->build ($dev); 1 }
81	or die $prog->build_info ($dev, OpenCL::PROGRAM_BUILD_LOG);	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
…		…
129		215
130	=head1 DOCUMENTATION	216	=head1 DOCUMENTATION
131		217
132	=head2 BASIC CONVENTIONS	218	=head2 BASIC CONVENTIONS
133		219
134	This is not a 1:1 C-style translation of OpenCL to Perl - instead I	220	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	221	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	222	object syntax where it makes sense. There are a number of important
137	differences between the OpenCL C API and this module:	223	differences between the OpenCL C API and this module:
138		224
139	=over 4	225	=over 4
140		226
141	=item * Object lifetime managament is automatic - there is no need	227	=item * Object lifetime managament is automatic - there is no need
142	to free objects explicitly (C<clReleaseXXX>), the release function	228	to free objects explicitly (C<clReleaseXXX>), the release function
143	is called automatically once all Perl references to it go away.	229	is called automatically once all Perl references to it go away.
144		230
145	=item * OpenCL uses CamelCase for function names (C<clGetPlatformInfo>),	231	=item * OpenCL uses CamelCase for function names
		232	(e.g. C<clGetPlatformIDs>, C<clGetPlatformInfo>), while this module
146	while this module uses underscores as word separator and often leaves out	233	uses underscores as word separator and often leaves out prefixes
147	prefixes (C<< $platform->info >>).	234	(C<OpenCL::platforms>, C<< $platform->info >>).
148		235
149	=item * OpenCL often specifies fixed vector function arguments as short	236	=item * OpenCL often specifies fixed vector function arguments as short
150	arrays (C<size_t origin[3]>), while this module explicitly expects the	237	arrays (C<size_t origin[3]>), while this module explicitly expects the
151	components as separate arguments-	238	components as separate arguments (C<$orig_x, $orig_y, $orig_z>) in
		239	function calls.
152		240
153	=item * Where possible, the row_pitch value is calculated from the perl	241	=item * Structures are often specified by flattening out their components
154	scalar length and need not be specified.	242	as with short vectors, and returned as arrayrefs.
155		243
156	=item * When enqueuing commands, the wait list is specified by adding	244	=item * When enqueuing commands, the wait list is specified by adding
157	extra arguments to the function - everywhere a C<$wait_events...> argument	245	extra arguments to the function - anywhere a C<$wait_events...> argument
158	is documented this can be any number of event objects.	246	is documented this can be any number of event objects.
159		247
160	=item * When enqueuing commands, if the enqueue method is called in void	248	=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	249	context, no event is created. In all other contexts an event is returned
162	by the method.	250	by the method.
…		…
165	other status is returned the function will throw an exception, so you	253	other status is returned the function will throw an exception, so you
166	don't normally have to to any error checking.	254	don't normally have to to any error checking.
167		255
168	=back	256	=back
169		257
		258	=head2 PERL AND OPENCL TYPES
		259
		260	This handy(?) table lists OpenCL types and their perl, PDL and pack/unpack
		261	format equivalents:
		262
		263	OpenCL perl PDL pack/unpack
		264	char IV - c
		265	uchar IV byte C
		266	short IV short s
		267	ushort IV ushort S
		268	int IV long? l
		269	uint IV - L
		270	long IV longlong q
		271	ulong IV - Q
		272	float NV float f
		273	half IV ushort S
		274	double NV double d
		275
170	=head2 THE OpenCL PACKAGE	276	=head2 THE OpenCL PACKAGE
171		277
172	=over 4	278	=over 4
173		279
174	=item $int = OpenCL::errno	280	=item $int = OpenCL::errno
175		281
176	The last error returned by a function - it's only changed on errors.	282	The last error returned by a function - it's only valid after an error occured
		283	and before calling another OpenCL function.
177		284
178	=item $str = OpenCL::err2str $errval	285	=item $str = OpenCL::err2str $errval
179		286
180	Comverts an error value into a human readable string.	287	Comverts an error value into a human readable string.
181		288
182	=item $str = OpenCL::err2str $enum	289	=item $str = OpenCL::enum2str $enum
183		290
184	Converts most enum values (inof parameter names, image format constants,	291	Converts most enum values (of parameter names, image format constants,
185	object types, addressing and filter modes, command types etc.) into a	292	object types, addressing and filter modes, command types etc.) into a
186	human readbale string. When confronted with some random integer it can be	293	human readable string. When confronted with some random integer it can be
187	very helpful to pass it through this function to maybe get some readable	294	very helpful to pass it through this function to maybe get some readable
188	string out of it.	295	string out of it.
189		296
190	=item @platforms = OpenCL::platforms	297	=item @platforms = OpenCL::platforms
191		298
192	Returns all available OpenCL::Platform objects.	299	Returns all available OpenCL::Platform objects.
193		300
194	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetPlatformIDs.html>	301	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetPlatformIDs.html>
195		302
196	=item $ctx = OpenCL::context_from_type_simple $type = OpenCL::DEVICE_TYPE_DEFAULT	303	=item $ctx = OpenCL::context_from_type $properties, $type = OpenCL::DEVICE_TYPE_DEFAULT, $notify = undef
197		304
198	Tries to create a context from a default device and platform - never worked for me.	305	Tries to create a context from a default device and platform - never worked for me.
199		306
200	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateContextFromType.html>	307	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateContextFromType.html>
201		308
…		…
209		316
210	=head2 THE OpenCL::Platform CLASS	317	=head2 THE OpenCL::Platform CLASS
211		318
212	=over 4	319	=over 4
213		320
		321	=item @devices = $platform->devices ($type = OpenCL::DEVICE_TYPE_ALL)
		322
		323	Returns a list of matching OpenCL::Device objects.
		324
		325	=item $ctx = $platform->context_from_type ($properties, $type = OpenCL::DEVICE_TYPE_DEFAULT, $notify = undef)
		326
		327	Tries to create a context. Never worked for me, and you need devices explicitly anyway.
		328
		329	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateContextFromType.html>
		330
		331	=item $ctx = $platform->context ($properties = undef, @$devices, $notify = undef)
		332
		333	Create a new OpenCL::Context object using the given device object(s)- a
		334	CL_CONTEXT_PLATFORM property is supplied automatically.
		335
		336	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateContext.html>
		337
214	=item $packed_value = $platform->info ($name)	338	=item $packed_value = $platform->info ($name)
215		339
216	Calls C<clGetPlatformInfo> and returns the packed, raw value - for	340	Calls C<clGetPlatformInfo> and returns the packed, raw value - for
217	strings, this will be the string, for other values you probably need to	341	strings, this will be the string (possibly including terminating \0), for
218	use the correct C<unpack>. This might get improved in the future. Hopefully.	342	other values you probably need to use the correct C<unpack>.
		343
		344	It's best to avoid this method and use one of the following convenience
		345	wrappers.
219		346
220	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetPlatformInfo.html>	347	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetPlatformInfo.html>
221		348
222	=item @devices = $platform->devices ($type = OpenCL::DEVICE_TYPE_ALL)	349	=for gengetinfo begin platform
223		350
224	Returns a list of matching OpenCL::Device objects.	351	=item $string = $platform->profile
225		352
226	=item $ctx = $platform->context_from_type_simple ($type = OpenCL::DEVICE_TYPE_DEFAULT)	353	Calls C<clGetPlatformInfo> with C<CL_PLATFORM_PROFILE> and returns the result.
227		354
228	Tries to create a context. Never worked for me.	355	=item $string = $platform->version
229		356
230	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateContextFromType.html>	357	Calls C<clGetPlatformInfo> with C<CL_PLATFORM_VERSION> and returns the result.
		358
		359	=item $string = $platform->name
		360
		361	Calls C<clGetPlatformInfo> with C<CL_PLATFORM_NAME> and returns the result.
		362
		363	=item $string = $platform->vendor
		364
		365	Calls C<clGetPlatformInfo> with C<CL_PLATFORM_VENDOR> and returns the result.
		366
		367	=item $string = $platform->extensions
		368
		369	Calls C<clGetPlatformInfo> with C<CL_PLATFORM_EXTENSIONS> and returns the result.
		370
		371	=for gengetinfo end platform
231		372
232	=back	373	=back
233		374
234	=head2 THE OpenCL::Device CLASS	375	=head2 THE OpenCL::Device CLASS
235		376
…		…
239		380
240	See C<< $platform->info >> for details.	381	See C<< $platform->info >> for details.
241		382
242	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetDeviceInfo.html>	383	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetDeviceInfo.html>
243		384
		385	=for gengetinfo begin device
		386
		387	=item $device_type = $device->type
		388
		389	Calls C<clGetDeviceInfo> with C<CL_DEVICE_TYPE> and returns the result.
		390
		391	=item $uint = $device->vendor_id
		392
		393	Calls C<clGetDeviceInfo> with C<CL_DEVICE_VENDOR_ID> and returns the result.
		394
		395	=item $uint = $device->max_compute_units
		396
		397	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_COMPUTE_UNITS> and returns the result.
		398
		399	=item $uint = $device->max_work_item_dimensions
		400
		401	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_WORK_ITEM_DIMENSIONS> and returns the result.
		402
		403	=item $int = $device->max_work_group_size
		404
		405	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_WORK_GROUP_SIZE> and returns the result.
		406
		407	=item @ints = $device->max_work_item_sizes
		408
		409	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_WORK_ITEM_SIZES> and returns the result.
		410
		411	=item $uint = $device->preferred_vector_width_char
		412
		413	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PREFERRED_VECTOR_WIDTH_CHAR> and returns the result.
		414
		415	=item $uint = $device->preferred_vector_width_short
		416
		417	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PREFERRED_VECTOR_WIDTH_SHORT> and returns the result.
		418
		419	=item $uint = $device->preferred_vector_width_int
		420
		421	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PREFERRED_VECTOR_WIDTH_INT> and returns the result.
		422
		423	=item $uint = $device->preferred_vector_width_long
		424
		425	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PREFERRED_VECTOR_WIDTH_LONG> and returns the result.
		426
		427	=item $uint = $device->preferred_vector_width_float
		428
		429	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PREFERRED_VECTOR_WIDTH_FLOAT> and returns the result.
		430
		431	=item $uint = $device->preferred_vector_width_double
		432
		433	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PREFERRED_VECTOR_WIDTH_DOUBLE> and returns the result.
		434
		435	=item $uint = $device->max_clock_frequency
		436
		437	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_CLOCK_FREQUENCY> and returns the result.
		438
		439	=item $bitfield = $device->address_bits
		440
		441	Calls C<clGetDeviceInfo> with C<CL_DEVICE_ADDRESS_BITS> and returns the result.
		442
		443	=item $uint = $device->max_read_image_args
		444
		445	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_READ_IMAGE_ARGS> and returns the result.
		446
		447	=item $uint = $device->max_write_image_args
		448
		449	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_WRITE_IMAGE_ARGS> and returns the result.
		450
		451	=item $ulong = $device->max_mem_alloc_size
		452
		453	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_MEM_ALLOC_SIZE> and returns the result.
		454
		455	=item $int = $device->image2d_max_width
		456
		457	Calls C<clGetDeviceInfo> with C<CL_DEVICE_IMAGE2D_MAX_WIDTH> and returns the result.
		458
		459	=item $int = $device->image2d_max_height
		460
		461	Calls C<clGetDeviceInfo> with C<CL_DEVICE_IMAGE2D_MAX_HEIGHT> and returns the result.
		462
		463	=item $int = $device->image3d_max_width
		464
		465	Calls C<clGetDeviceInfo> with C<CL_DEVICE_IMAGE3D_MAX_WIDTH> and returns the result.
		466
		467	=item $int = $device->image3d_max_height
		468
		469	Calls C<clGetDeviceInfo> with C<CL_DEVICE_IMAGE3D_MAX_HEIGHT> and returns the result.
		470
		471	=item $int = $device->image3d_max_depth
		472
		473	Calls C<clGetDeviceInfo> with C<CL_DEVICE_IMAGE3D_MAX_DEPTH> and returns the result.
		474
		475	=item $uint = $device->image_support
		476
		477	Calls C<clGetDeviceInfo> with C<CL_DEVICE_IMAGE_SUPPORT> and returns the result.
		478
		479	=item $int = $device->max_parameter_size
		480
		481	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_PARAMETER_SIZE> and returns the result.
		482
244	=item $ctx = $device->context_simple	483	=item $uint = $device->max_samplers
245		484
246	Convenience function to create a new OpenCL::Context object.	485	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_SAMPLERS> and returns the result.
247		486
248	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateContext.html>	487	=item $uint = $device->mem_base_addr_align
		488
		489	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MEM_BASE_ADDR_ALIGN> and returns the result.
		490
		491	=item $uint = $device->min_data_type_align_size
		492
		493	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MIN_DATA_TYPE_ALIGN_SIZE> and returns the result.
		494
		495	=item $device_fp_config = $device->single_fp_config
		496
		497	Calls C<clGetDeviceInfo> with C<CL_DEVICE_SINGLE_FP_CONFIG> and returns the result.
		498
		499	=item $device_mem_cache_type = $device->global_mem_cache_type
		500
		501	Calls C<clGetDeviceInfo> with C<CL_DEVICE_GLOBAL_MEM_CACHE_TYPE> and returns the result.
		502
		503	=item $uint = $device->global_mem_cacheline_size
		504
		505	Calls C<clGetDeviceInfo> with C<CL_DEVICE_GLOBAL_MEM_CACHELINE_SIZE> and returns the result.
		506
		507	=item $ulong = $device->global_mem_cache_size
		508
		509	Calls C<clGetDeviceInfo> with C<CL_DEVICE_GLOBAL_MEM_CACHE_SIZE> and returns the result.
		510
		511	=item $ulong = $device->global_mem_size
		512
		513	Calls C<clGetDeviceInfo> with C<CL_DEVICE_GLOBAL_MEM_SIZE> and returns the result.
		514
		515	=item $ulong = $device->max_constant_buffer_size
		516
		517	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_CONSTANT_BUFFER_SIZE> and returns the result.
		518
		519	=item $uint = $device->max_constant_args
		520
		521	Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_CONSTANT_ARGS> and returns the result.
		522
		523	=item $device_local_mem_type = $device->local_mem_type
		524
		525	Calls C<clGetDeviceInfo> with C<CL_DEVICE_LOCAL_MEM_TYPE> and returns the result.
		526
		527	=item $ulong = $device->local_mem_size
		528
		529	Calls C<clGetDeviceInfo> with C<CL_DEVICE_LOCAL_MEM_SIZE> and returns the result.
		530
		531	=item $boolean = $device->error_correction_support
		532
		533	Calls C<clGetDeviceInfo> with C<CL_DEVICE_ERROR_CORRECTION_SUPPORT> and returns the result.
		534
		535	=item $int = $device->profiling_timer_resolution
		536
		537	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PROFILING_TIMER_RESOLUTION> and returns the result.
		538
		539	=item $boolean = $device->endian_little
		540
		541	Calls C<clGetDeviceInfo> with C<CL_DEVICE_ENDIAN_LITTLE> and returns the result.
		542
		543	=item $boolean = $device->available
		544
		545	Calls C<clGetDeviceInfo> with C<CL_DEVICE_AVAILABLE> and returns the result.
		546
		547	=item $boolean = $device->compiler_available
		548
		549	Calls C<clGetDeviceInfo> with C<CL_DEVICE_COMPILER_AVAILABLE> and returns the result.
		550
		551	=item $device_exec_capabilities = $device->execution_capabilities
		552
		553	Calls C<clGetDeviceInfo> with C<CL_DEVICE_EXECUTION_CAPABILITIES> and returns the result.
		554
		555	=item $command_queue_properties = $device->properties
		556
		557	Calls C<clGetDeviceInfo> with C<CL_DEVICE_QUEUE_PROPERTIES> and returns the result.
		558
		559	=item $ = $device->platform
		560
		561	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PLATFORM> and returns the result.
		562
		563	=item $string = $device->name
		564
		565	Calls C<clGetDeviceInfo> with C<CL_DEVICE_NAME> and returns the result.
		566
		567	=item $string = $device->vendor
		568
		569	Calls C<clGetDeviceInfo> with C<CL_DEVICE_VENDOR> and returns the result.
		570
		571	=item $string = $device->driver_version
		572
		573	Calls C<clGetDeviceInfo> with C<CL_DRIVER_VERSION> and returns the result.
		574
		575	=item $string = $device->profile
		576
		577	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PROFILE> and returns the result.
		578
		579	=item $string = $device->version
		580
		581	Calls C<clGetDeviceInfo> with C<CL_DEVICE_VERSION> and returns the result.
		582
		583	=item $string = $device->extensions
		584
		585	Calls C<clGetDeviceInfo> with C<CL_DEVICE_EXTENSIONS> and returns the result.
		586
		587	=item $uint = $device->preferred_vector_width_half
		588
		589	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PREFERRED_VECTOR_WIDTH_HALF> and returns the result.
		590
		591	=item $uint = $device->native_vector_width_char
		592
		593	Calls C<clGetDeviceInfo> with C<CL_DEVICE_NATIVE_VECTOR_WIDTH_CHAR> and returns the result.
		594
		595	=item $uint = $device->native_vector_width_short
		596
		597	Calls C<clGetDeviceInfo> with C<CL_DEVICE_NATIVE_VECTOR_WIDTH_SHORT> and returns the result.
		598
		599	=item $uint = $device->native_vector_width_int
		600
		601	Calls C<clGetDeviceInfo> with C<CL_DEVICE_NATIVE_VECTOR_WIDTH_INT> and returns the result.
		602
		603	=item $uint = $device->native_vector_width_long
		604
		605	Calls C<clGetDeviceInfo> with C<CL_DEVICE_NATIVE_VECTOR_WIDTH_LONG> and returns the result.
		606
		607	=item $uint = $device->native_vector_width_float
		608
		609	Calls C<clGetDeviceInfo> with C<CL_DEVICE_NATIVE_VECTOR_WIDTH_FLOAT> and returns the result.
		610
		611	=item $uint = $device->native_vector_width_double
		612
		613	Calls C<clGetDeviceInfo> with C<CL_DEVICE_NATIVE_VECTOR_WIDTH_DOUBLE> and returns the result.
		614
		615	=item $uint = $device->native_vector_width_half
		616
		617	Calls C<clGetDeviceInfo> with C<CL_DEVICE_NATIVE_VECTOR_WIDTH_HALF> and returns the result.
		618
		619	=item $device_fp_config = $device->double_fp_config
		620
		621	Calls C<clGetDeviceInfo> with C<CL_DEVICE_DOUBLE_FP_CONFIG> and returns the result.
		622
		623	=item $device_fp_config = $device->half_fp_config
		624
		625	Calls C<clGetDeviceInfo> with C<CL_DEVICE_HALF_FP_CONFIG> and returns the result.
		626
		627	=item $boolean = $device->host_unified_memory
		628
		629	Calls C<clGetDeviceInfo> with C<CL_DEVICE_HOST_UNIFIED_MEMORY> and returns the result.
		630
		631	=item $device = $device->parent_device_ext
		632
		633	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PARENT_DEVICE_EXT> and returns the result.
		634
		635	=item @device_partition_property_exts = $device->partition_types_ext
		636
		637	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PARTITION_TYPES_EXT> and returns the result.
		638
		639	=item @device_partition_property_exts = $device->affinity_domains_ext
		640
		641	Calls C<clGetDeviceInfo> with C<CL_DEVICE_AFFINITY_DOMAINS_EXT> and returns the result.
		642
		643	=item $uint = $device->reference_count_ext
		644
		645	Calls C<clGetDeviceInfo> with C<CL_DEVICE_REFERENCE_COUNT_EXT > and returns the result.
		646
		647	=item @device_partition_property_exts = $device->partition_style_ext
		648
		649	Calls C<clGetDeviceInfo> with C<CL_DEVICE_PARTITION_STYLE_EXT> and returns the result.
		650
		651	=for gengetinfo end device
249		652
250	=back	653	=back
251		654
252	=head2 THE OpenCL::Context CLASS	655	=head2 THE OpenCL::Context CLASS
253		656
254	=over 4	657	=over 4
255		658
256	=item $packed_value = $ctx->info ($name)	659	=item $queue = $ctx->queue ($device, $properties)
257		660
258	See C<< $platform->info >> for details.
259
260	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetContextInfo.html>
261
262	=item $queue = $ctx->command_queue_simple ($device)
263
264	Convenience function to create a new OpenCL::Queue object from the context and the given device.	661	Create a new OpenCL::Queue object from the context and the given device.
265		662
266	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateCommandQueue.html>	663	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateCommandQueue.html>
267		664
268	=item $ev = $ctx->user_event	665	=item $ev = $ctx->user_event
269		666
…		…
271		668
272	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateUserEvent.html>	669	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateUserEvent.html>
273		670
274	=item $buf = $ctx->buffer ($flags, $len)	671	=item $buf = $ctx->buffer ($flags, $len)
275		672
276	Creates a new OpenCL::Buffer object with the given flags and octet-size.	673	Creates a new OpenCL::Buffer (actually OpenCL::BufferObj) object with the
		674	given flags and octet-size.
277		675
278	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateBuffer.html>	676	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateBuffer.html>
279		677
280	=item $buf = $ctx->buffer_sv ($flags, $data)	678	=item $buf = $ctx->buffer_sv ($flags, $data)
281		679
282	Creates a new OpenCL::Buffer object and initialise it with the given data values.	680	Creates a new OpenCL::Buffer (actually OpenCL::BufferObj) object and
		681	initialise it with the given data values.
283		682
284	=item $img = $ctx->image2d ($flags, $channel_order, $channel_type, $width, $height, $data)	683	=item $img = $ctx->image2d ($flags, $channel_order, $channel_type, $width, $height, $row_pitch = 0, $data = undef)
285		684
286	Creates a new OpenCL::Image2D object and optionally initialises it with the given data values.	685	Creates a new OpenCL::Image2D object and optionally initialises it with
		686	the given data values.
287		687
288	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateImage2D.html>	688	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateImage2D.html>
289		689
290	=item $img = $ctx->image3d ($flags, $channel_order, $channel_type, $width, $height, $depth, $slice_pitch, $data)	690	=item $img = $ctx->image3d ($flags, $channel_order, $channel_type, $width, $height, $depth, $row_pitch = 0, $slice_pitch = 0, $data = undef)
291		691
292	Creates a new OpenCL::Image3D object and optionally initialises it with the given data values.	692	Creates a new OpenCL::Image3D object and optionally initialises it with
		693	the given data values.
293		694
294	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateImage3D.html>	695	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateImage3D.html>
		696
		697	=item $buffer = $ctx->gl_buffer ($flags, $bufobj)
		698
		699	Creates a new OpenCL::Buffer (actually OpenCL::BufferObj) object that refers to the given
		700	OpenGL buffer object.
		701
		702	http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateFromGLBuffer.html
		703
		704	=item $ctx->gl_texture2d ($flags, $target, $miplevel, $texture)
		705
		706	Creates a new OpenCL::Image2D object that refers to the given OpenGL
		707	2D texture object.
		708
		709	http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateFromGLTexture2D.html
		710
		711	=item $ctx->gl_texture3d ($flags, $target, $miplevel, $texture)
		712
		713	Creates a new OpenCL::Image3D object that refers to the given OpenGL
		714	3D texture object.
		715
		716	http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateFromGLTexture3D.html
		717
		718	=item $ctx->gl_renderbuffer ($flags, $renderbuffer)
		719
		720	Creates a new OpenCL::Image2D object that refers to the given OpenGL
		721	render buffer.
		722
		723	http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateFromGLRenderbuffer.html
295		724
296	=item @formats = $ctx->supported_image_formats ($flags, $image_type)	725	=item @formats = $ctx->supported_image_formats ($flags, $image_type)
297		726
298	Returns a list of matching image formats - each format is an arrayref with	727	Returns a list of matching image formats - each format is an arrayref with
299	two values, $channel_order and $channel_type, in it.	728	two values, $channel_order and $channel_type, in it.
…		…
309	=item $program = $ctx->program_with_source ($string)	738	=item $program = $ctx->program_with_source ($string)
310		739
311	Creates a new OpenCL::Program object from the given source code.	740	Creates a new OpenCL::Program object from the given source code.
312		741
313	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateProgramWithSource.html>	742	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateProgramWithSource.html>
		743
		744	=item $packed_value = $ctx->info ($name)
		745
		746	See C<< $platform->info >> for details.
		747
		748	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetContextInfo.html>
		749
		750	=for gengetinfo begin context
		751
		752	=item $uint = $context->reference_count
		753
		754	Calls C<clGetContextInfo> with C<CL_CONTEXT_REFERENCE_COUNT> and returns the result.
		755
		756	=item @devices = $context->devices
		757
		758	Calls C<clGetContextInfo> with C<CL_CONTEXT_DEVICES> and returns the result.
		759
		760	=item @property_ints = $context->properties
		761
		762	Calls C<clGetContextInfo> with C<CL_CONTEXT_PROPERTIES> and returns the result.
		763
		764	=item $uint = $context->num_devices
		765
		766	Calls C<clGetContextInfo> with C<CL_CONTEXT_NUM_DEVICES> and returns the result.
		767
		768	=for gengetinfo end context
314		769
315	=back	770	=back
316		771
317	=head2 THE OpenCL::Queue CLASS	772	=head2 THE OpenCL::Queue CLASS
318		773
…		…
332	cases (i.e. you use only one queue) it's not necessary to wait for or	787	cases (i.e. you use only one queue) it's not necessary to wait for or
333	create event objects.	788	create event objects.
334		789
335	=over 4	790	=over 4
336		791
337	=item $packed_value = $ctx->info ($name)
338
339	See C<< $platform->info >> for details.
340
341	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetCommandQueueInfo.html>
342
343	=item $ev = $queue->enqueue_read_buffer ($buffer, $blocking, $offset, $len, $data, $wait_events...)	792	=item $ev = $queue->enqueue_read_buffer ($buffer, $blocking, $offset, $len, $data, $wait_events...)
344		793
345	Reads data from buffer into the given string.	794	Reads data from buffer into the given string.
346		795
347	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReadBuffer.html>	796	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReadBuffer.html>
…		…
354		803
355	=item $ev = $queue->enqueue_copy_buffer ($src, $dst, $src_offset, $dst_offset, $len, $wait_events...)	804	=item $ev = $queue->enqueue_copy_buffer ($src, $dst, $src_offset, $dst_offset, $len, $wait_events...)
356		805
357	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyBuffer.html>	806	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyBuffer.html>
358		807
		808	=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...)
		809
		810	http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReadBufferRect.html
		811
		812	=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...)
		813
		814	http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWriteBufferRect.html
		815
359	=item $ev = $queue->enqueue_read_image ($src, $blocking, $x, $y, $z, $width, $height, $depth, $row_pitch, $slice_pitch, $data, $wait_events...)	816	=item $ev = $queue->enqueue_read_image ($src, $blocking, $x, $y, $z, $width, $height, $depth, $row_pitch, $slice_pitch, $data, $wait_events...)
360		817
		818	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyBufferRect.html>
		819
		820	=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...)
		821
361	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReadImage.html>	822	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReadImage.html>
362		823
363	=item $ev = $queue->enqueue_write_image ($src, $blocking, $x, $y, $z, $width, $height, $depth, $row_pitch, $data, $wait_events...)	824	=item $ev = $queue->enqueue_write_image ($src, $blocking, $x, $y, $z, $width, $height, $depth, $row_pitch, $slice_pitch, $data, $wait_events...)
364		825
365	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWriteImage.html>	826	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWriteImage.html>
366		827
		828	=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...)
		829
		830	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyImage.html>
		831
		832	=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...)
		833
		834	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyImageToBuffer.html>
		835
367	=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...)	836	=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...)
368		837
369	Yeah.	838	Yeah.
370		839
371	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyBufferRect.html>
372
373	=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, ...)
374
375	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyBufferToImage.html>.	840	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyBufferToImage.html>.
376
377	=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, ...)
378
379	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyImage.html>
380
381	=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, ...)
382
383	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyImageToBuffer.html>
384		841
385	=item $ev = $queue->enqueue_task ($kernel, $wait_events...)	842	=item $ev = $queue->enqueue_task ($kernel, $wait_events...)
386		843
387	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueTask.html>	844	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueTask.html>
388		845
…		…
402	reference to an array of local work sizes, with the same number of	859	reference to an array of local work sizes, with the same number of
403	elements as @$global_work_size.	860	elements as @$global_work_size.
404		861
405	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueNDRangeKernel.html>	862	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueNDRangeKernel.html>
406		863
407	=item $ev = $queue->enqueue_marker	864	=item $ev = $queue->enqueue_marker ($wait_events...)
408		865
409	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueMarker.html>	866	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueMarker.html>
410		867
		868	=item $ev = $queue->enqueue_acquire_gl_objects ([object, ...], $wait_events...)
		869
		870	Enqueues a list (an array-ref of OpenCL::Memory objects) to be acquired
		871	for subsequent OpenCL usage.
		872
		873	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueAcquireGLObjects.html>
		874
		875	=item $ev = $queue->enqueue_release_gl_objects ([object, ...], $wait_events...)
		876
		877	Enqueues a list (an array-ref of OpenCL::Memory objects) to be released
		878	for subsequent OpenGL usage.
		879
		880	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReleaseGLObjects.html>
		881
411	=item $ev = $queue->enqueue_wait_for_events ($wait_events...)	882	=item $ev = $queue->enqueue_wait_for_events ($wait_events...)
412		883
413	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWaitForEvents.html>	884	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWaitForEvents.html>
414		885
415	=item $queue->enqueue_barrier	886	=item $queue->enqueue_barrier
…		…
422		893
423	=item $queue->finish	894	=item $queue->finish
424		895
425	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clFinish.html>	896	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clFinish.html>
426		897
		898	=item $packed_value = $queue->info ($name)
		899
		900	See C<< $platform->info >> for details.
		901
		902	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetCommandQueueInfo.html>
		903
		904	=for gengetinfo begin command_queue
		905
		906	=item $ctx = $command_queue->context
		907
		908	Calls C<clGetCommandQueueInfo> with C<CL_QUEUE_CONTEXT> and returns the result.
		909
		910	=item $device = $command_queue->device
		911
		912	Calls C<clGetCommandQueueInfo> with C<CL_QUEUE_DEVICE> and returns the result.
		913
		914	=item $uint = $command_queue->reference_count
		915
		916	Calls C<clGetCommandQueueInfo> with C<CL_QUEUE_REFERENCE_COUNT> and returns the result.
		917
		918	=item $command_queue_properties = $command_queue->properties
		919
		920	Calls C<clGetCommandQueueInfo> with C<CL_QUEUE_PROPERTIES> and returns the result.
		921
		922	=for gengetinfo end command_queue
		923
427	=back	924	=back
428		925
429	=head2 THE OpenCL::Memory CLASS	926	=head2 THE OpenCL::Memory CLASS
430		927
431	This the superclass of all memory objects - OpenCL::Buffer, OpenCL::Image,	928	This the superclass of all memory objects - OpenCL::Buffer, OpenCL::Image,
432	OpenCL::Image2D and OpenCL::Image3D. The subclasses of this class	929	OpenCL::Image2D and OpenCL::Image3D.
433	currently only exist to allow type-checking.
434		930
435	=over 4	931	=over 4
436		932
437	=item $packed_value = $memory->info ($name)	933	=item $packed_value = $memory->info ($name)
438		934
439	See C<< $platform->info >> for details.	935	See C<< $platform->info >> for details.
440		936
441	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetMemObjectInfo.html>	937	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetMemObjectInfo.html>
442		938
		939	=for gengetinfo begin mem
		940
		941	=item $mem_object_type = $mem->type
		942
		943	Calls C<clGetMemObjectInfo> with C<CL_MEM_TYPE> and returns the result.
		944
		945	=item $mem_flags = $mem->flags
		946
		947	Calls C<clGetMemObjectInfo> with C<CL_MEM_FLAGS> and returns the result.
		948
		949	=item $int = $mem->size
		950
		951	Calls C<clGetMemObjectInfo> with C<CL_MEM_SIZE> and returns the result.
		952
		953	=item $ptr_value = $mem->host_ptr
		954
		955	Calls C<clGetMemObjectInfo> with C<CL_MEM_HOST_PTR> and returns the result.
		956
		957	=item $uint = $mem->map_count
		958
		959	Calls C<clGetMemObjectInfo> with C<CL_MEM_MAP_COUNT> and returns the result.
		960
		961	=item $uint = $mem->reference_count
		962
		963	Calls C<clGetMemObjectInfo> with C<CL_MEM_REFERENCE_COUNT> and returns the result.
		964
		965	=item $ctx = $mem->context
		966
		967	Calls C<clGetMemObjectInfo> with C<CL_MEM_CONTEXT> and returns the result.
		968
		969	=item $mem = $mem->associated_memobject
		970
		971	Calls C<clGetMemObjectInfo> with C<CL_MEM_ASSOCIATED_MEMOBJECT> and returns the result.
		972
		973	=item $int = $mem->offset
		974
		975	Calls C<clGetMemObjectInfo> with C<CL_MEM_OFFSET> and returns the result.
		976
		977	=for gengetinfo end mem
		978
		979	=item ($type, $name) = $mem->gl_object_info
		980
		981	Returns the OpenGL object type (e.g. OpenCL::GL_OBJECT_TEXTURE2D) and the
		982	object "name" (e.g. the texture name) used to create this memory object.
		983
		984	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetGLObjectInfo.html>
		985
443	=back	986	=back
444		987
		988	=head2 THE OpenCL::Buffer CLASS
		989
		990	This is a subclass of OpenCL::Memory, and the superclass of
		991	OpenCL::BufferObj. Its purpose is simply to distinguish between buffers
		992	and sub-buffers.
		993
		994	=head2 THE OpenCL::BufferObj CLASS
		995
		996	This is a subclass of OpenCL::Buffer and thus OpenCL::Memory. It exists
		997	because one cna create sub buffers of OpenLC::BufferObj objects, but not
		998	sub buffers from these sub buffers.
		999
		1000	=over 4
		1001
		1002	=item $subbuf = $buf_obj->sub_buffer_region ($flags, $origin, $size)
		1003
		1004	Creates an OpenCL::Buffer objects from this buffer and returns it. The
		1005	C<buffer_create_type> is assumed to be C<CL_BUFFER_CREATE_TYPE_REGION>.
		1006
		1007	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateSubBuffer.html>
		1008
		1009	=back
		1010
		1011	=head2 THE OpenCL::Image CLASS
		1012
		1013	This is the superclass of all image objects - OpenCL::Image2D and OpenCL::Image3D.
		1014
		1015	=over 4
		1016
		1017	=item $packed_value = $ev->image_info ($name)
		1018
		1019	See C<< $platform->info >> for details.
		1020
		1021	The reason this method is not called C<info> is that there already is an
		1022	C<< ->info >> method inherited from C<OpenCL::Memory>.
		1023
		1024	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetImageInfo.html>
		1025
		1026	=for gengetinfo begin image
		1027
		1028	=item $int = $image->element_size
		1029
		1030	Calls C<clGetImageInfo> with C<CL_IMAGE_ELEMENT_SIZE> and returns the result.
		1031
		1032	=item $int = $image->row_pitch
		1033
		1034	Calls C<clGetImageInfo> with C<CL_IMAGE_ROW_PITCH> and returns the result.
		1035
		1036	=item $int = $image->slice_pitch
		1037
		1038	Calls C<clGetImageInfo> with C<CL_IMAGE_SLICE_PITCH> and returns the result.
		1039
		1040	=item $int = $image->width
		1041
		1042	Calls C<clGetImageInfo> with C<CL_IMAGE_WIDTH> and returns the result.
		1043
		1044	=item $int = $image->height
		1045
		1046	Calls C<clGetImageInfo> with C<CL_IMAGE_HEIGHT> and returns the result.
		1047
		1048	=item $int = $image->depth
		1049
		1050	Calls C<clGetImageInfo> with C<CL_IMAGE_DEPTH> and returns the result.
		1051
		1052	=for gengetinfo end image
		1053
		1054	=for gengetinfo begin gl_texture
		1055
		1056	=item $GLenum = $gl_texture->target
		1057
		1058	Calls C<clGetGlTextureInfo> with C<CL_GL_TEXTURE_TARGET> and returns the result.
		1059
		1060	=item $GLint = $gl_texture->gl_mipmap_level
		1061
		1062	Calls C<clGetGlTextureInfo> with C<CL_GL_MIPMAP_LEVEL> and returns the result.
		1063
		1064	=for gengetinfo end gl_texture
		1065
		1066	=back
		1067
445	=head2 THE OpenCL::Sampler CLASS	1068	=head2 THE OpenCL::Sampler CLASS
446		1069
447	=over 4	1070	=over 4
448		1071
449	=item $packed_value = $sampler->info ($name)	1072	=item $packed_value = $sampler->info ($name)
450		1073
451	See C<< $platform->info >> for details.	1074	See C<< $platform->info >> for details.
452		1075
453	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetSamplerInfo.html>	1076	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetSamplerInfo.html>
454		1077
		1078	=for gengetinfo begin sampler
		1079
		1080	=item $uint = $sampler->reference_count
		1081
		1082	Calls C<clGetSamplerInfo> with C<CL_SAMPLER_REFERENCE_COUNT> and returns the result.
		1083
		1084	=item $ctx = $sampler->context
		1085
		1086	Calls C<clGetSamplerInfo> with C<CL_SAMPLER_CONTEXT> and returns the result.
		1087
		1088	=item $addressing_mode = $sampler->normalized_coords
		1089
		1090	Calls C<clGetSamplerInfo> with C<CL_SAMPLER_NORMALIZED_COORDS> and returns the result.
		1091
		1092	=item $filter_mode = $sampler->addressing_mode
		1093
		1094	Calls C<clGetSamplerInfo> with C<CL_SAMPLER_ADDRESSING_MODE> and returns the result.
		1095
		1096	=item $boolean = $sampler->filter_mode
		1097
		1098	Calls C<clGetSamplerInfo> with C<CL_SAMPLER_FILTER_MODE> and returns the result.
		1099
		1100	=for gengetinfo end sampler
		1101
455	=back	1102	=back
456		1103
457	=head2 THE OpenCL::Program CLASS	1104	=head2 THE OpenCL::Program CLASS
458		1105
459	=over 4	1106	=over 4
460
461	=item $packed_value = $program->info ($name)
462
463	See C<< $platform->info >> for details.
464
465	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetProgramInfo.html>
466		1107
467	=item $program->build ($device, $options = "")	1108	=item $program->build ($device, $options = "")
468		1109
469	Tries to build the program with the givne options.	1110	Tries to build the program with the givne options.
470		1111
…		…
482	Creates an OpenCL::Kernel object out of the named C<__kernel> function in	1123	Creates an OpenCL::Kernel object out of the named C<__kernel> function in
483	the program.	1124	the program.
484		1125
485	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateKernel.html>	1126	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateKernel.html>
486		1127
		1128	=for gengetinfo begin program_build
		1129
		1130	=item $build_status = $program->build_status ($device)
		1131
		1132	Calls C<clGetProgramBuildInfo> with C<CL_PROGRAM_BUILD_STATUS> and returns the result.
		1133
		1134	=item $string = $program->build_options ($device)
		1135
		1136	Calls C<clGetProgramBuildInfo> with C<CL_PROGRAM_BUILD_OPTIONS> and returns the result.
		1137
		1138	=item $string = $program->build_log ($device)
		1139
		1140	Calls C<clGetProgramBuildInfo> with C<CL_PROGRAM_BUILD_LOG> and returns the result.
		1141
		1142	=for gengetinfo end program_build
		1143
		1144	=item $packed_value = $program->info ($name)
		1145
		1146	See C<< $platform->info >> for details.
		1147
		1148	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetProgramInfo.html>
		1149
		1150	=for gengetinfo begin program
		1151
		1152	=item $uint = $program->reference_count
		1153
		1154	Calls C<clGetProgramInfo> with C<CL_PROGRAM_REFERENCE_COUNT> and returns the result.
		1155
		1156	=item $ctx = $program->context
		1157
		1158	Calls C<clGetProgramInfo> with C<CL_PROGRAM_CONTEXT> and returns the result.
		1159
		1160	=item $uint = $program->num_devices
		1161
		1162	Calls C<clGetProgramInfo> with C<CL_PROGRAM_NUM_DEVICES> and returns the result.
		1163
		1164	=item @devices = $program->devices
		1165
		1166	Calls C<clGetProgramInfo> with C<CL_PROGRAM_DEVICES> and returns the result.
		1167
		1168	=item $string = $program->source
		1169
		1170	Calls C<clGetProgramInfo> with C<CL_PROGRAM_SOURCE> and returns the result.
		1171
		1172	=item @ints = $program->binary_sizes
		1173
		1174	Calls C<clGetProgramInfo> with C<CL_PROGRAM_BINARY_SIZES> and returns the result.
		1175
		1176	=for gengetinfo end program
		1177
		1178	=item @blobs = $program->binaries
		1179
		1180	Returns a string for the compiled binary for every device associated with
		1181	the program, empty strings indicate missing programs, and an empty result
		1182	means no program binaries are available.
		1183
		1184	These "binaries" are often, in fact, informative low-level assembly
		1185	sources.
		1186
		1187	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetProgramInfo.html>
		1188
487	=back	1189	=back
488		1190
489	=head2 THE OpenCL::Kernel CLASS	1191	=head2 THE OpenCL::Kernel CLASS
490		1192
491	=over 4	1193	=over 4
…		…
493	=item $packed_value = $kernel->info ($name)	1195	=item $packed_value = $kernel->info ($name)
494		1196
495	See C<< $platform->info >> for details.	1197	See C<< $platform->info >> for details.
496		1198
497	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetKernelInfo.html>	1199	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetKernelInfo.html>
		1200
		1201	=for gengetinfo begin kernel
		1202
		1203	=item $string = $kernel->function_name
		1204
		1205	Calls C<clGetKernelInfo> with C<CL_KERNEL_FUNCTION_NAME> and returns the result.
		1206
		1207	=item $uint = $kernel->num_args
		1208
		1209	Calls C<clGetKernelInfo> with C<CL_KERNEL_NUM_ARGS> and returns the result.
		1210
		1211	=item $uint = $kernel->reference_count
		1212
		1213	Calls C<clGetKernelInfo> with C<CL_KERNEL_REFERENCE_COUNT> and returns the result.
		1214
		1215	=item $ctx = $kernel->context
		1216
		1217	Calls C<clGetKernelInfo> with C<CL_KERNEL_CONTEXT> and returns the result.
		1218
		1219	=item $program = $kernel->program
		1220
		1221	Calls C<clGetKernelInfo> with C<CL_KERNEL_PROGRAM> and returns the result.
		1222
		1223	=for gengetinfo end kernel
		1224
		1225	=item $packed_value = $kernel->work_group_info ($device, $name)
		1226
		1227	See C<< $platform->info >> for details.
		1228
		1229	The reason this method is not called C<info> is that there already is an
		1230	C<< ->info >> method.
		1231
		1232	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetKernelWorkGroupInfo.html>
		1233
		1234	=for gengetinfo begin kernel_work_group
		1235
		1236	=item $int = $kernel->work_group_size ($device)
		1237
		1238	Calls C<clGetKernelWorkGroupInfo> with C<CL_KERNEL_WORK_GROUP_SIZE> and returns the result.
		1239
		1240	=item @ints = $kernel->compile_work_group_size ($device)
		1241
		1242	Calls C<clGetKernelWorkGroupInfo> with C<CL_KERNEL_COMPILE_WORK_GROUP_SIZE> and returns the result.
		1243
		1244	=item $ulong = $kernel->local_mem_size ($device)
		1245
		1246	Calls C<clGetKernelWorkGroupInfo> with C<CL_KERNEL_LOCAL_MEM_SIZE> and returns the result.
		1247
		1248	=item $int = $kernel->preferred_work_group_size_multiple ($device)
		1249
		1250	Calls C<clGetKernelWorkGroupInfo> with C<CL_KERNEL_PREFERRED_WORK_GROUP_SIZE_MULTIPLE> and returns the result.
		1251
		1252	=item $ulong = $kernel->private_mem_size ($device)
		1253
		1254	Calls C<clGetKernelWorkGroupInfo> with C<CL_KERNEL_PRIVATE_MEM_SIZE> and returns the result.
		1255
		1256	=for gengetinfo end kernel_work_group
498		1257
499	=item $kernel->set_TYPE ($index, $value)	1258	=item $kernel->set_TYPE ($index, $value)
500		1259
501	This is a family of methods to set the kernel argument with the number C<$index> to the give C<$value>.	1260	This is a family of methods to set the kernel argument with the number C<$index> to the give C<$value>.
502		1261
…		…
518	This is the superclass for all event objects (including OpenCL::UserEvent	1277	This is the superclass for all event objects (including OpenCL::UserEvent
519	objects).	1278	objects).
520		1279
521	=over 4	1280	=over 4
522		1281
		1282	=item $ev->wait
		1283
		1284	Waits for the event to complete.
		1285
		1286	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clWaitForEvents.html>
		1287
523	=item $packed_value = $ev->info ($name)	1288	=item $packed_value = $ev->info ($name)
524		1289
525	See C<< $platform->info >> for details.	1290	See C<< $platform->info >> for details.
526		1291
527	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetEventInfo.html>	1292	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetEventInfo.html>
528		1293
529	=item $ev->wait	1294	=for gengetinfo begin event
530		1295
531	Waits for the event to complete.	1296	=item $queue = $event->command_queue
532		1297
		1298	Calls C<clGetEventInfo> with C<CL_EVENT_COMMAND_QUEUE> and returns the result.
		1299
		1300	=item $command_type = $event->command_type
		1301
		1302	Calls C<clGetEventInfo> with C<CL_EVENT_COMMAND_TYPE> and returns the result.
		1303
		1304	=item $uint = $event->reference_count
		1305
		1306	Calls C<clGetEventInfo> with C<CL_EVENT_REFERENCE_COUNT> and returns the result.
		1307
		1308	=item $uint = $event->command_execution_status
		1309
		1310	Calls C<clGetEventInfo> with C<CL_EVENT_COMMAND_EXECUTION_STATUS> and returns the result.
		1311
		1312	=item $ctx = $event->context
		1313
		1314	Calls C<clGetEventInfo> with C<CL_EVENT_CONTEXT> and returns the result.
		1315
		1316	=for gengetinfo end event
		1317
		1318	=item $packed_value = $ev->profiling_info ($name)
		1319
		1320	See C<< $platform->info >> for details.
		1321
		1322	The reason this method is not called C<info> is that there already is an
		1323	C<< ->info >> method.
		1324
533	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clWaitForEvents.html>	1325	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetProfilingInfo.html>
		1326
		1327	=for gengetinfo begin profiling
		1328
		1329	=item $ulong = $event->profiling_command_queued
		1330
		1331	Calls C<clGetEventProfilingInfo> with C<CL_PROFILING_COMMAND_QUEUED> and returns the result.
		1332
		1333	=item $ulong = $event->profiling_command_submit
		1334
		1335	Calls C<clGetEventProfilingInfo> with C<CL_PROFILING_COMMAND_SUBMIT> and returns the result.
		1336
		1337	=item $ulong = $event->profiling_command_start
		1338
		1339	Calls C<clGetEventProfilingInfo> with C<CL_PROFILING_COMMAND_START> and returns the result.
		1340
		1341	=item $ulong = $event->profiling_command_end
		1342
		1343	Calls C<clGetEventProfilingInfo> with C<CL_PROFILING_COMMAND_END> and returns the result.
		1344
		1345	=for gengetinfo end profiling
534		1346
535	=back	1347	=back
536		1348
537	=head2 THE OpenCL::UserEvent CLASS	1349	=head2 THE OpenCL::UserEvent CLASS
538		1350
…		…
551	package OpenCL;	1363	package OpenCL;
552		1364
553	use common::sense;	1365	use common::sense;
554		1366
555	BEGIN {	1367	BEGIN {
556	our $VERSION = '0.03';	1368	our $VERSION = '0.92';
557		1369
558	require XSLoader;	1370	require XSLoader;
559	XSLoader::load (__PACKAGE__, $VERSION);	1371	XSLoader::load (__PACKAGE__, $VERSION);
560		1372
561	@OpenCL::Buffer::ISA =	1373	@OpenCL::Buffer::ISA =
562	@OpenCL::Image::ISA = OpenCL::Memory::;	1374	@OpenCL::Image::ISA = OpenCL::Memory::;
563		1375
		1376	@OpenCL::BufferObj::ISA = OpenCL::Buffer::;
		1377
564	@OpenCL::Image2D::ISA =	1378	@OpenCL::Image2D::ISA =
565	@OpenCL::Image3D::ISA = OpenCL::Image::;	1379	@OpenCL::Image3D::ISA = OpenCL::Image::;
566		1380
567	@OpenCL::UserEvent::ISA = OpenCL::Event::;	1381	@OpenCL::UserEvent::ISA = OpenCL::Event::;
568	}	1382	}
569		1383
570	1;	1384	1;
571		1385
572	=head1 AUTHOR	1386	=head1 AUTHOR

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Comparing OpenCL/OpenCL.pm (file contents): Revision 1.6 by root, Wed Nov 16 00:36:40 2011 UTC vs. Revision 1.35 by root, Thu Apr 19 13:18:31 2012 UTC

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Comparing OpenCL/OpenCL.pm (file contents):
Revision 1.6 by root, Wed Nov 16 00:36:40 2011 UTC vs.
Revision 1.35 by root, Thu Apr 19 13:18:31 2012 UTC