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

Comparing OpenCL/OpenCL.pm (file contents):
Revision 1.7 by root, Wed Nov 16 00:44:41 2011 UTC vs.
Revision 1.18 by root, Thu Nov 17 06:22:29 2011 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::Buffers 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->info (OpenCL::PLATFORM_NAME);
30	warn $platform->info (OpenCL::PLATFORM_EXTENSIONS);	107	printf "extensions: %s\n", $platform->info (OpenCL::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->info (OpenCL::DEVICE_NAME);
33	my $ctx = $device->context_simple;	110	my $ctx = $device->context;
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 $prog->build_info ($dev, OpenCL::PROGRAM_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
…		…
145	=item * OpenCL uses CamelCase for function names (C<clGetPlatformInfo>),	231	=item * OpenCL uses CamelCase for function names (C<clGetPlatformInfo>),
146	while this module uses underscores as word separator and often leaves out	232	while this module uses underscores as word separator and often leaves out
147	prefixes (C<< $platform->info >>).	233	prefixes (C<< $platform->info >>).
148		234
149	=item * OpenCL often specifies fixed vector function arguments as short	235	=item * OpenCL often specifies fixed vector function arguments as short
150	arrays (C<size_t origin[3]>), while this module explicitly expects the	236	arrays (C<$origin[3]>), while this module explicitly expects the
151	components as separate arguments-	237	components as separate arguments-
152		238
		239	=item * Structures are often specified with their components, and returned
		240	as arrayrefs.
		241
153	=item * Where possible, the row_pitch value is calculated from the perl	242	=item * Where possible, one of the pitch values is calculated from the
154	scalar length and need not be specified.	243	perl scalar length and need not be specified.
155		244
156	=item * When enqueuing commands, the wait list is specified by adding	245	=item * When enqueuing commands, the wait list is specified by adding
157	extra arguments to the function - everywhere a C<$wait_events...> argument	246	extra arguments to the function - anywhere a C<$wait_events...> argument
158	is documented this can be any number of event objects.	247	is documented this can be any number of event objects.
159		248
160	=item * When enqueuing commands, if the enqueue method is called in void	249	=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	250	context, no event is created. In all other contexts an event is returned
162	by the method.	251	by the method.
…		…
167		256
168	=back	257	=back
169		258
170	=head2 PERL AND OPENCL TYPES	259	=head2 PERL AND OPENCL TYPES
171		260
172	This handy(?) table lists OpenCL types and their perl and pack/unpack	261	This handy(?) table lists OpenCL types and their perl, PDL and pack/unpack
173	format equivalents:	262	format equivalents:
174		263
175	OpenCL perl pack/unpack	264	OpenCL perl PDL pack/unpack
176	char IV c	265	char IV - c
177	uchar IV C	266	uchar IV byte C
178	short IV s	267	short IV short s
179	ushort IV S	268	ushort IV ushort S
180	int IV l	269	int IV long? l
181	uint IV L	270	uint IV - L
182	long IV q	271	long IV longlong q
183	ulong IV Q	272	ulong IV - Q
184	float NV f	273	float NV float f
185	half IV S	274	half IV ushort S
186	double NV d	275	double NV double d
187		276
188	=head2 THE OpenCL PACKAGE	277	=head2 THE OpenCL PACKAGE
189		278
190	=over 4	279	=over 4
191		280
192	=item $int = OpenCL::errno	281	=item $int = OpenCL::errno
193		282
194	The last error returned by a function - it's only changed on errors.	283	The last error returned by a function - it's only valid after an error occured
		284	and before calling another OpenCL function.
195		285
196	=item $str = OpenCL::err2str $errval	286	=item $str = OpenCL::err2str $errval
197		287
198	Comverts an error value into a human readable string.	288	Comverts an error value into a human readable string.
199		289
200	=item $str = OpenCL::err2str $enum	290	=item $str = OpenCL::enum2str $enum
201		291
202	Converts most enum values (inof parameter names, image format constants,	292	Converts most enum values (inof parameter names, image format constants,
203	object types, addressing and filter modes, command types etc.) into a	293	object types, addressing and filter modes, command types etc.) into a
204	human readbale string. When confronted with some random integer it can be	294	human readbale string. When confronted with some random integer it can be
205	very helpful to pass it through this function to maybe get some readable	295	very helpful to pass it through this function to maybe get some readable
…		…
209		299
210	Returns all available OpenCL::Platform objects.	300	Returns all available OpenCL::Platform objects.
211		301
212	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetPlatformIDs.html>	302	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetPlatformIDs.html>
213		303
214	=item $ctx = OpenCL::context_from_type_simple $type = OpenCL::DEVICE_TYPE_DEFAULT	304	=item $ctx = OpenCL::context_from_type $properties, $type = OpenCL::DEVICE_TYPE_DEFAULT, $notify = undef
215		305
216	Tries to create a context from a default device and platform - never worked for me.	306	Tries to create a context from a default device and platform - never worked for me.
217		307
218	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateContextFromType.html>	308	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateContextFromType.html>
219		309
…		…
239		329
240	=item @devices = $platform->devices ($type = OpenCL::DEVICE_TYPE_ALL)	330	=item @devices = $platform->devices ($type = OpenCL::DEVICE_TYPE_ALL)
241		331
242	Returns a list of matching OpenCL::Device objects.	332	Returns a list of matching OpenCL::Device objects.
243		333
244	=item $ctx = $platform->context_from_type_simple ($type = OpenCL::DEVICE_TYPE_DEFAULT)	334	=item $ctx = $platform->context_from_type ($properties, $type = OpenCL::DEVICE_TYPE_DEFAULT, $notify = undef)
245		335
246	Tries to create a context. Never worked for me.	336	Tries to create a context. Never worked for me, and you need devices explitly anyway.
247		337
248	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateContextFromType.html>	338	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateContextFromType.html>
249		339
		340	=item $ctx = $device->context ($properties = undef, @$devices, $notify = undef)
		341
		342	Create a new OpenCL::Context object using the given device object(s)- a
		343	CL_CONTEXT_PLATFORM property is supplied automatically.
		344
		345	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateContext.html>
		346
250	=back	347	=back
251		348
252	=head2 THE OpenCL::Device CLASS	349	=head2 THE OpenCL::Device CLASS
253		350
254	=over 4	351	=over 4
…		…
257		354
258	See C<< $platform->info >> for details.	355	See C<< $platform->info >> for details.
259		356
260	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetDeviceInfo.html>	357	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetDeviceInfo.html>
261		358
262	=item $ctx = $device->context_simple
263
264	Convenience function to create a new OpenCL::Context object.
265
266	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateContext.html>
267
268	=back	359	=back
269		360
270	=head2 THE OpenCL::Context CLASS	361	=head2 THE OpenCL::Context CLASS
271		362
272	=over 4	363	=over 4
…		…
275		366
276	See C<< $platform->info >> for details.	367	See C<< $platform->info >> for details.
277		368
278	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetContextInfo.html>	369	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetContextInfo.html>
279		370
280	=item $queue = $ctx->command_queue_simple ($device)	371	=item $queue = $ctx->queue ($device, $properties)
281		372
282	Convenience function to create a new OpenCL::Queue object from the context and the given device.	373	Create a new OpenCL::Queue object from the context and the given device.
283		374
284	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateCommandQueue.html>	375	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateCommandQueue.html>
285		376
286	=item $ev = $ctx->user_event	377	=item $ev = $ctx->user_event
287		378
…		…
297		388
298	=item $buf = $ctx->buffer_sv ($flags, $data)	389	=item $buf = $ctx->buffer_sv ($flags, $data)
299		390
300	Creates a new OpenCL::Buffer object and initialise it with the given data values.	391	Creates a new OpenCL::Buffer object and initialise it with the given data values.
301		392
302	=item $img = $ctx->image2d ($flags, $channel_order, $channel_type, $width, $height, $data)	393	=item $img = $ctx->image2d ($flags, $channel_order, $channel_type, $width, $height, $row_pitch = 0, $data = undef)
303		394
304	Creates a new OpenCL::Image2D object and optionally initialises it with the given data values.	395	Creates a new OpenCL::Image2D object and optionally initialises it with the given data values.
305		396
306	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateImage2D.html>	397	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateImage2D.html>
307		398
308	=item $img = $ctx->image3d ($flags, $channel_order, $channel_type, $width, $height, $depth, $slice_pitch, $data)	399	=item $img = $ctx->image3d ($flags, $channel_order, $channel_type, $width, $height, $depth, $row_pitch = 0, $slice_pitch = 0, $data = undef)
309		400
310	Creates a new OpenCL::Image3D object and optionally initialises it with the given data values.	401	Creates a new OpenCL::Image3D object and optionally initialises it with the given data values.
311		402
312	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateImage3D.html>	403	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateImage3D.html>
313		404
…		…
376		467
377	=item $ev = $queue->enqueue_read_image ($src, $blocking, $x, $y, $z, $width, $height, $depth, $row_pitch, $slice_pitch, $data, $wait_events...)	468	=item $ev = $queue->enqueue_read_image ($src, $blocking, $x, $y, $z, $width, $height, $depth, $row_pitch, $slice_pitch, $data, $wait_events...)
378		469
379	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReadImage.html>	470	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReadImage.html>
380		471
381	=item $ev = $queue->enqueue_write_image ($src, $blocking, $x, $y, $z, $width, $height, $depth, $row_pitch, $data, $wait_events...)	472	=item $ev = $queue->enqueue_write_image ($src, $blocking, $x, $y, $z, $width, $height, $depth, $row_pitch, $slice_pitch, $data, $wait_events...)
382		473
383	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWriteImage.html>	474	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWriteImage.html>
384		475
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...)	476	=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		477
387	Yeah.	478	Yeah.
388		479
389	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyBufferRect.html>	480	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyBufferRect.html>
390		481
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, ...)	482	=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...)
392		483
393	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyBufferToImage.html>.	484	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyBufferToImage.html>.
394		485
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, ...)	486	=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...)
396		487
397	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyImage.html>	488	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyImage.html>
398		489
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, ...)	490	=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...)
400		491
401	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyImageToBuffer.html>	492	L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyImageToBuffer.html>
402		493
403	=item $ev = $queue->enqueue_task ($kernel, $wait_events...)	494	=item $ev = $queue->enqueue_task ($kernel, $wait_events...)
404		495
…		…
569	package OpenCL;	660	package OpenCL;
570		661
571	use common::sense;	662	use common::sense;
572		663
573	BEGIN {	664	BEGIN {
574	our $VERSION = '0.03';	665	our $VERSION = '0.15';
575		666
576	require XSLoader;	667	require XSLoader;
577	XSLoader::load (__PACKAGE__, $VERSION);	668	XSLoader::load (__PACKAGE__, $VERSION);
578		669
579	@OpenCL::Buffer::ISA =	670	@OpenCL::Buffer::ISA =

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Comparing OpenCL/OpenCL.pm (file contents): Revision 1.7 by root, Wed Nov 16 00:44:41 2011 UTC vs. Revision 1.18 by root, Thu Nov 17 06:22:29 2011 UTC

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Comparing OpenCL/OpenCL.pm (file contents):
Revision 1.7 by root, Wed Nov 16 00:44:41 2011 UTC vs.
Revision 1.18 by root, Thu Nov 17 06:22:29 2011 UTC