… | |
… | |
43 | |
43 | |
44 | OpenCL::Event objects are used to signal when something is complete. |
44 | OpenCL::Event objects are used to signal when something is complete. |
45 | |
45 | |
46 | =head2 HELPFUL RESOURCES |
46 | =head2 HELPFUL RESOURCES |
47 | |
47 | |
48 | The OpenCL spec used to develop this module (1.2 spec was available, but |
48 | The OpenCL specs used to develop this module - download these and keept |
49 | no implementation was available to me :). |
49 | hema round, they are required reference material: |
50 | |
50 | |
51 | http://www.khronos.org/registry/cl/specs/opencl-1.1.pdf |
51 | http://www.khronos.org/registry/cl/specs/opencl-1.1.pdf |
|
|
52 | http://www.khronos.org/registry/cl/specs/opencl-1.2.pdf |
|
|
53 | http://www.khronos.org/registry/cl/specs/opencl-1.2-extensions.pdf |
52 | |
54 | |
53 | OpenCL manpages: |
55 | OpenCL manpages: |
54 | |
56 | |
55 | http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/ |
57 | http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/ |
|
|
58 | http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/ |
56 | |
59 | |
57 | If you are into UML class diagrams, the following diagram might help - if |
60 | If you are into UML class diagrams, the following diagram might help - if |
58 | not, it will be mildly cobfusing: |
61 | not, it will be mildly confusing (also, the class hierarchy of this module |
|
|
62 | is much more fine-grained): |
59 | |
63 | |
60 | http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/classDiagram.html |
64 | http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/classDiagram.html |
61 | |
65 | |
62 | Here's a tutorial from AMD (very AMD-centric, too), not sure how useful it |
66 | 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: |
67 | is, but at least it's free of charge: |
64 | |
68 | |
65 | http://developer.amd.com/zones/OpenCLZone/courses/Documents/Introduction_to_OpenCL_Programming%20Training_Guide%20%28201005%29.pdf |
69 | http://developer.amd.com/zones/OpenCLZone/courses/Documents/Introduction_to_OpenCL_Programming%20Training_Guide%20%28201005%29.pdf |
… | |
… | |
138 | =head2 Create a buffer with some predefined data, read it back synchronously, |
142 | =head2 Create a buffer with some predefined data, read it back synchronously, |
139 | then asynchronously. |
143 | then asynchronously. |
140 | |
144 | |
141 | my $buf = $ctx->buffer_sv (OpenCL::MEM_COPY_HOST_PTR, "helmut"); |
145 | my $buf = $ctx->buffer_sv (OpenCL::MEM_COPY_HOST_PTR, "helmut"); |
142 | |
146 | |
143 | $queue->enqueue_read_buffer ($buf, 1, 1, 3, my $data); |
147 | $queue->read_buffer ($buf, 1, 1, 3, my $data); |
144 | print "$data\n"; |
148 | print "$data\n"; |
145 | |
149 | |
146 | my $ev = $queue->enqueue_read_buffer ($buf, 0, 1, 3, my $data); |
150 | my $ev = $queue->read_buffer ($buf, 0, 1, 3, my $data); |
147 | $ev->wait; |
151 | $ev->wait; |
148 | print "$data\n"; # prints "elm" |
152 | print "$data\n"; # prints "elm" |
149 | |
153 | |
150 | =head2 Create and build a program, then create a kernel out of one of its |
154 | =head2 Create and build a program, then create a kernel out of one of its |
151 | functions. |
155 | functions. |
… | |
… | |
171 | # set buffer |
175 | # set buffer |
172 | $kernel->set_buffer (0, $input); |
176 | $kernel->set_buffer (0, $input); |
173 | $kernel->set_buffer (1, $output); |
177 | $kernel->set_buffer (1, $output); |
174 | |
178 | |
175 | # execute it for all 4 numbers |
179 | # execute it for all 4 numbers |
176 | $queue->enqueue_nd_range_kernel ($kernel, undef, [4], undef); |
180 | $queue->nd_range_kernel ($kernel, undef, [4], undef); |
177 | |
181 | |
178 | # enqueue a synchronous read |
182 | # enqueue a synchronous read |
179 | $queue->enqueue_read_buffer ($output, 1, 0, OpenCL::SIZEOF_FLOAT * 4, my $data); |
183 | $queue->read_buffer ($output, 1, 0, OpenCL::SIZEOF_FLOAT * 4, my $data); |
180 | |
184 | |
181 | # print the results: |
185 | # print the results: |
182 | printf "%s\n", join ", ", unpack "f*", $data; |
186 | printf "%s\n", join ", ", unpack "f*", $data; |
183 | |
187 | |
184 | =head2 The same enqueue operations as before, but assuming an out-of-order queue, |
188 | =head2 The same enqueue operations as before, but assuming an out-of-order queue, |
185 | showing off barriers. |
189 | showing off barriers. |
186 | |
190 | |
187 | # execute it for all 4 numbers |
191 | # execute it for all 4 numbers |
188 | $queue->enqueue_nd_range_kernel ($kernel, undef, [4], undef); |
192 | $queue->nd_range_kernel ($kernel, undef, [4], undef); |
189 | |
193 | |
190 | # enqueue a barrier to ensure in-order execution |
194 | # enqueue a barrier to ensure in-order execution |
191 | $queue->enqueue_barrier; |
195 | $queue->barrier; |
192 | |
196 | |
193 | # enqueue an async read |
197 | # enqueue an async read |
194 | $queue->enqueue_read_buffer ($output, 0, 0, OpenCL::SIZEOF_FLOAT * 4, my $data); |
198 | $queue->read_buffer ($output, 0, 0, OpenCL::SIZEOF_FLOAT * 4, my $data); |
195 | |
199 | |
196 | # wait for all requests to finish |
200 | # wait for all requests to finish |
197 | $queue->finish; |
201 | $queue->finish; |
198 | |
202 | |
199 | =head2 The same enqueue operations as before, but assuming an out-of-order queue, |
203 | =head2 The same enqueue operations as before, but assuming an out-of-order queue, |
200 | showing off event objects and wait lists. |
204 | showing off event objects and wait lists. |
201 | |
205 | |
202 | # execute it for all 4 numbers |
206 | # execute it for all 4 numbers |
203 | my $ev = $queue->enqueue_nd_range_kernel ($kernel, undef, [4], undef); |
207 | my $ev = $queue->nd_range_kernel ($kernel, undef, [4], undef); |
204 | |
208 | |
205 | # enqueue an async read |
209 | # enqueue an async read |
206 | $ev = $queue->enqueue_read_buffer ($output, 0, 0, OpenCL::SIZEOF_FLOAT * 4, my $data, $ev); |
210 | $ev = $queue->read_buffer ($output, 0, 0, OpenCL::SIZEOF_FLOAT * 4, my $data, $ev); |
207 | |
211 | |
208 | # wait for the last event to complete |
212 | # wait for the last event to complete |
209 | $ev->wait; |
213 | $ev->wait; |
210 | |
214 | |
211 | =head2 Use the OpenGL module to share a texture between OpenCL and OpenGL and draw some julia |
215 | =head2 Use the OpenGL module to share a texture between OpenCL and OpenGL and draw some julia |
212 | set tunnel effect. |
216 | set flight effect. |
213 | |
217 | |
214 | This is quite a long example to get you going. |
218 | This is quite a long example to get you going - you can download it from |
|
|
219 | L<http://cvs.schmorp.de/OpenCL/examples/juliaflight>. |
215 | |
220 | |
216 | use OpenGL ":all"; |
221 | use OpenGL ":all"; |
217 | use OpenCL; |
222 | use OpenCL; |
218 | |
223 | |
|
|
224 | my $S = $ARGV[0] || 256; # window/texture size, smaller is faster |
|
|
225 | |
219 | # open a window and create a gl texture |
226 | # open a window and create a gl texture |
220 | OpenGL::glpOpenWindow width => 256, height => 256; |
227 | OpenGL::glpOpenWindow width => $S, height => $S; |
221 | my $texid = glGenTextures_p 1; |
228 | my $texid = glGenTextures_p 1; |
222 | glBindTexture GL_TEXTURE_2D, $texid; |
229 | glBindTexture GL_TEXTURE_2D, $texid; |
223 | glTexImage2D_c GL_TEXTURE_2D, 0, GL_RGBA8, 256, 256, 0, GL_RGBA, GL_UNSIGNED_BYTE, 0; |
230 | glTexImage2D_c GL_TEXTURE_2D, 0, GL_RGBA8, $S, $S, 0, GL_RGBA, GL_UNSIGNED_BYTE, 0; |
224 | |
231 | |
225 | # find and use the first opencl device that let's us get a shared opengl context |
232 | # find and use the first opencl device that let's us get a shared opengl context |
226 | my $platform; |
233 | my $platform; |
227 | my $dev; |
234 | my $dev; |
228 | my $ctx; |
235 | my $ctx; |
… | |
… | |
247 | # now the boring opencl code |
254 | # now the boring opencl code |
248 | my $src = <<EOF; |
255 | my $src = <<EOF; |
249 | kernel void |
256 | kernel void |
250 | juliatunnel (write_only image2d_t img, float time) |
257 | juliatunnel (write_only image2d_t img, float time) |
251 | { |
258 | { |
252 | float2 p = (float2)(get_global_id (0), get_global_id (1)) / 256.f * 2.f - 1.f; |
259 | int2 xy = (int2)(get_global_id (0), get_global_id (1)); |
|
|
260 | float2 p = convert_float2 (xy) / $S.f * 2.f - 1.f; |
253 | |
261 | |
254 | float2 m = (float2)(1.f, p.y) / fabs (p.x); |
262 | float2 m = (float2)(1.f, p.y) / fabs (p.x); // tunnel |
255 | m.x = fabs (fmod (m.x + time * 0.05f, 4.f)) - 2.f; |
263 | m.x = fabs (fmod (m.x + time * 0.05f, 4.f) - 2.f); |
256 | |
264 | |
257 | float2 z = m; |
265 | float2 z = m; |
258 | float2 c = (float2)(sin (time * 0.05005), cos (time * 0.06001)); |
266 | float2 c = (float2)(sin (time * 0.01133f), cos (time * 0.02521f)); |
259 | |
267 | |
260 | for (int i = 0; i < 25 && dot (z, z) < 4.f; ++i) |
268 | for (int i = 0; i < 25 && dot (z, z) < 4.f; ++i) // standard julia |
261 | z = (float2)(z.x * z.x - z.y * z.y, 2.f * z.x * z.y) + c; |
269 | z = (float2)(z.x * z.x - z.y * z.y, 2.f * z.x * z.y) + c; |
262 | |
270 | |
263 | float3 colour = (float3)(z.x, z.y, z.x * z.y); |
271 | float3 colour = (float3)(z.x, z.y, atan2 (z.y, z.x)); |
264 | write_imagef (img, (int2)(get_global_id (0), get_global_id (1)), (float4)(colour * p.x * p.x, 1.)); |
272 | write_imagef (img, xy, (float4)(colour * p.x * p.x, 1.)); |
265 | } |
273 | } |
266 | EOF |
274 | EOF |
267 | |
275 | |
268 | my $prog = $ctx->build_program ($src); |
276 | my $prog = $ctx->build_program ($src); |
269 | my $kernel = $prog->kernel ("juliatunnel"); |
277 | my $kernel = $prog->kernel ("juliatunnel"); |
270 | |
278 | |
271 | # program compiled, kernel ready, now draw and loop |
279 | # program compiled, kernel ready, now draw and loop |
272 | |
280 | |
273 | for (my $time; ; ++$time) { |
281 | for (my $time; ; ++$time) { |
274 | # acquire objects from opengl |
282 | # acquire objects from opengl |
275 | $queue->enqueue_acquire_gl_objects ([$tex]); |
283 | $queue->acquire_gl_objects ([$tex]); |
276 | |
284 | |
277 | # configure and run our kernel |
285 | # configure and run our kernel |
278 | $kernel->set_image2d (0, $tex); |
286 | $kernel->setf ("mf", $tex, $time*2); # mf = memory object, float |
279 | $kernel->set_float (1, $time); |
|
|
280 | $queue->enqueue_nd_range_kernel ($kernel, undef, [256, 256], undef); |
287 | $queue->nd_range_kernel ($kernel, undef, [$S, $S], undef); |
281 | |
288 | |
282 | # release objects to opengl again |
289 | # release objects to opengl again |
283 | $queue->enqueue_release_gl_objects ([$tex]); |
290 | $queue->release_gl_objects ([$tex]); |
284 | |
291 | |
285 | # wait |
292 | # wait |
286 | $queue->finish; |
293 | $queue->finish; |
287 | |
294 | |
288 | # now draw the texture, the defaults should be all right |
295 | # now draw the texture, the defaults should be all right |
… | |
… | |
298 | |
305 | |
299 | glXSwapBuffers; |
306 | glXSwapBuffers; |
300 | |
307 | |
301 | select undef, undef, undef, 1/60; |
308 | select undef, undef, undef, 1/60; |
302 | } |
309 | } |
|
|
310 | |
|
|
311 | =head2 How to modify the previous example to not rely on GL sharing. |
|
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312 | |
|
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313 | For those poor souls with only a sucky CPU OpenCL implementation, you |
|
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314 | currently have to read the image into some perl scalar, and then modify a |
|
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315 | texture or use glDrawPixels or so). |
|
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316 | |
|
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317 | First, when you don't need gl sharing, you can create the context much simpler: |
|
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318 | |
|
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319 | $ctx = $platform->context (undef, [$dev]) |
|
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320 | |
|
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321 | To use a texture, you would modify the above example by creating an |
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322 | OpenCL::Image manually instead of deriving it from a texture: |
|
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323 | |
|
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324 | my $tex = $ctx->image2d (OpenCL::MEM_WRITE_ONLY, OpenCL::RGBA, OpenCL::UNORM_INT8, $S, $S); |
|
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325 | |
|
|
326 | And in the draw loop, intead of acquire_gl_objects/release_gl_objects, you |
|
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327 | would read the image2d after the kernel has written it: |
|
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328 | |
|
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329 | $queue->read_image ($tex, 0, 0, 0, 0, $S, $S, 1, 0, 0, my $data); |
|
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330 | |
|
|
331 | And then you would upload the pixel data to the texture (or use glDrawPixels): |
|
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332 | |
|
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333 | glTexSubImage2D_s GL_TEXTURE_2D, 0, 0, 0, $S, $S, GL_RGBA, GL_UNSIGNED_BYTE, $data; |
|
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334 | |
|
|
335 | The fully modified example can be found at |
|
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336 | L<http://cvs.schmorp.de/OpenCL/examples/juliaflight-nosharing>. |
|
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337 | |
|
|
338 | =head2 Julia sets look soooo 80ies. |
|
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339 | |
|
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340 | Then colour them differently, e.g. using orbit traps! Replace the loop and |
|
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341 | colour calculation from the previous examples by this: |
|
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342 | |
|
|
343 | float2 dm = (float2)(1.f, 1.f); |
|
|
344 | |
|
|
345 | for (int i = 0; i < 25; ++i) |
|
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346 | { |
|
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347 | z = (float2)(z.x * z.x - z.y * z.y, 2.f * z.x * z.y) + c; |
|
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348 | dm = fmin (dm, (float2)(fabs (dot (z, z) - 1.f), fabs (z.x - 1.f))); |
|
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349 | } |
|
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350 | |
|
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351 | float3 colour = (float3)(dm.x * dm.y, dm.x * dm.y, dm.x); |
|
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352 | |
|
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353 | Also try C<-10.f> instead of C<-1.f>. |
303 | |
354 | |
304 | =head1 DOCUMENTATION |
355 | =head1 DOCUMENTATION |
305 | |
356 | |
306 | =head2 BASIC CONVENTIONS |
357 | =head2 BASIC CONVENTIONS |
307 | |
358 | |
… | |
… | |
376 | |
427 | |
377 | For this to work, the OpenGL library must be loaded, a GLX context must |
428 | For this to work, the OpenGL library must be loaded, a GLX context must |
378 | have been created and be made current, and C<dlsym> must be available and |
429 | have been created and be made current, and C<dlsym> must be available and |
379 | capable of finding the function via C<RTLD_DEFAULT>. |
430 | capable of finding the function via C<RTLD_DEFAULT>. |
380 | |
431 | |
|
|
432 | =head2 EVENT SYSTEM |
|
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433 | |
|
|
434 | OpenCL can generate a number of (potentially) asynchronous events, for |
|
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435 | example, after compiling a program, to signal a context-related error or, |
|
|
436 | perhaps most important, to signal completion of queued jobs (by setting |
|
|
437 | callbacks on OpenCL::Event objects). |
|
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438 | |
|
|
439 | The OpenCL module converts all these callbacks into events - you can |
|
|
440 | still register callbacks, but they are not executed when your OpenCL |
|
|
441 | implementation calls the actual callback, but only later. Therefore, none |
|
|
442 | of the limitations of OpenCL callbacks apply to the perl implementation: |
|
|
443 | it is perfectly safe to make blocking operations from event callbacks, and |
|
|
444 | enqueued operations don't need to be flushed. |
|
|
445 | |
|
|
446 | To facilitate this, this module maintains an event queue - each |
|
|
447 | time an asynchronous event happens, it is queued, and perl will be |
|
|
448 | interrupted. This is implemented via the L<Async::Interrupt> module. In |
|
|
449 | addition, this module has L<AnyEvent> support, so it can seamlessly |
|
|
450 | integrate itself into many event loops. |
|
|
451 | |
|
|
452 | Since L<Async::Interrupt> is a bit hard to understand, here are some case examples: |
|
|
453 | |
|
|
454 | =head3 Don't use callbacks. |
|
|
455 | |
|
|
456 | When your program never uses any callbacks, then there will never be any |
|
|
457 | notifications you need to take care of, and therefore no need to worry |
|
|
458 | about all this. |
|
|
459 | |
|
|
460 | You can achieve a great deal by explicitly waiting for events, or using |
|
|
461 | barriers and flush calls. In many programs, there is no need at all to |
|
|
462 | tinker with asynchronous events. |
|
|
463 | |
|
|
464 | =head3 Use AnyEvent |
|
|
465 | |
|
|
466 | This module automatically registers a watcher that invokes all outstanding |
|
|
467 | event callbacks when AnyEvent is initialised (and block asynchronous |
|
|
468 | interruptions). Using this mode of operations is the safest and most |
|
|
469 | recommended one. |
|
|
470 | |
|
|
471 | To use this, simply use AnyEvent and this module normally, make sure you |
|
|
472 | have an event loop running: |
|
|
473 | |
|
|
474 | use Gtk2 -init; |
|
|
475 | use AnyEvent; |
|
|
476 | |
|
|
477 | # initialise AnyEvent, by creating a watcher, or: |
|
|
478 | AnyEvent::detect; |
|
|
479 | |
|
|
480 | my $e = $queue->marker; |
|
|
481 | $e->cb (sub { |
|
|
482 | warn "opencl is finished\n"; |
|
|
483 | }) |
|
|
484 | |
|
|
485 | main Gtk2; |
|
|
486 | |
|
|
487 | Note that this module will not initialise AnyEvent for you. Before |
|
|
488 | AnyEvent is initialised, the module will asynchronously interrupt perl |
|
|
489 | instead. To avoid any surprises, it's best to explicitly initialise |
|
|
490 | AnyEvent. |
|
|
491 | |
|
|
492 | You can temporarily enable asynchronous interruptions (see next paragraph) |
|
|
493 | by calling C<$OpenCL::INTERRUPT->unblock> and disable them again by |
|
|
494 | calling C<$OpenCL::INTERRUPT->block>. |
|
|
495 | |
|
|
496 | =head3 Let yourself be interrupted at any time |
|
|
497 | |
|
|
498 | This mode is the default unless AnyEvent is loaded and initialised. In |
|
|
499 | this mode, OpenCL asynchronously interrupts a running perl program. The |
|
|
500 | emphasis is on both I<asynchronously> and I<running> here. |
|
|
501 | |
|
|
502 | Asynchronously means that perl might execute your callbacks at any |
|
|
503 | time. For example, in the following code (I<THAT YOU SHOULD NOT COPY>), |
|
|
504 | the C<until> loop following the marker call will be interrupted by the |
|
|
505 | callback: |
|
|
506 | |
|
|
507 | my $e = $queue->marker; |
|
|
508 | my $flag; |
|
|
509 | $e->cb (sub { $flag = 1 }); |
|
|
510 | 1 until $flag; |
|
|
511 | # $flag is now 1 |
|
|
512 | |
|
|
513 | The reason why you shouldn't blindly copy the above code is that |
|
|
514 | busy waiting is a really really bad thing, and really really bad for |
|
|
515 | performance. |
|
|
516 | |
|
|
517 | While at first this asynchronous business might look exciting, it can be |
|
|
518 | really hard, because you need to be prepared for the callback code to be |
|
|
519 | executed at any time, which limits the amount of things the callback code |
|
|
520 | can do safely. |
|
|
521 | |
|
|
522 | This can be mitigated somewhat by using C<< |
|
|
523 | $OpenCL::INTERRUPT->scope_block >> (see the L<Async::Interrupt> |
|
|
524 | documentation for details). |
|
|
525 | |
|
|
526 | The other problem is that your program must be actively I<running> to be |
|
|
527 | interrupted. When you calculate stuff, your program is running. When you |
|
|
528 | hang in some C functions or other block execution (by calling C<sleep>, |
|
|
529 | C<select>, running an event loop and so on), your program is waiting, not |
|
|
530 | running. |
|
|
531 | |
|
|
532 | One way around that would be to attach a read watcher to your event loop, |
|
|
533 | listening for events on C<< $OpenCL::INTERRUPT->pipe_fileno >>, using a |
|
|
534 | dummy callback (C<sub { }>) to temporarily execute some perl code. |
|
|
535 | |
|
|
536 | That is then awfully close to using the built-in AnyEvent support above, |
|
|
537 | though, so consider that one instead. |
|
|
538 | |
|
|
539 | =head3 Be creative |
|
|
540 | |
|
|
541 | OpenCL exports the L<Async::Interrupt> object it uses in the global |
|
|
542 | variable C<$OpenCL::INTERRUPT>. You can configure it in any way you like. |
|
|
543 | |
|
|
544 | So if you want to feel like a real pro, err, wait, if you feel no risk |
|
|
545 | menas no fun, you can experiment by implementing your own mode of |
|
|
546 | operations. |
|
|
547 | |
381 | =cut |
548 | =cut |
382 | |
549 | |
383 | package OpenCL; |
550 | package OpenCL; |
384 | |
551 | |
385 | use common::sense; |
552 | use common::sense; |
|
|
553 | use Carp (); |
|
|
554 | use Async::Interrupt (); |
|
|
555 | |
|
|
556 | our $POLL_FUNC; # set by XS |
386 | |
557 | |
387 | BEGIN { |
558 | BEGIN { |
388 | our $VERSION = '0.96'; |
559 | our $VERSION = '0.99'; |
389 | |
560 | |
390 | require XSLoader; |
561 | require XSLoader; |
391 | XSLoader::load (__PACKAGE__, $VERSION); |
562 | XSLoader::load (__PACKAGE__, $VERSION); |
392 | |
563 | |
393 | @OpenCL::Platform::ISA = |
564 | @OpenCL::Platform::ISA = |
… | |
… | |
398 | @OpenCL::Sampler::ISA = |
569 | @OpenCL::Sampler::ISA = |
399 | @OpenCL::Program::ISA = |
570 | @OpenCL::Program::ISA = |
400 | @OpenCL::Kernel::ISA = |
571 | @OpenCL::Kernel::ISA = |
401 | @OpenCL::Event::ISA = OpenCL::Object::; |
572 | @OpenCL::Event::ISA = OpenCL::Object::; |
402 | |
573 | |
|
|
574 | @OpenCL::SubDevice::ISA = OpenCL::Device::; |
|
|
575 | |
403 | @OpenCL::Buffer::ISA = |
576 | @OpenCL::Buffer::ISA = |
404 | @OpenCL::Image::ISA = OpenCL::Memory::; |
577 | @OpenCL::Image::ISA = OpenCL::Memory::; |
405 | |
578 | |
406 | @OpenCL::BufferObj::ISA = OpenCL::Buffer::; |
579 | @OpenCL::BufferObj::ISA = OpenCL::Buffer::; |
407 | |
580 | |
… | |
… | |
411 | @OpenCL::Image1D::ISA = |
584 | @OpenCL::Image1D::ISA = |
412 | @OpenCL::Image1DArray::ISA = |
585 | @OpenCL::Image1DArray::ISA = |
413 | @OpenCL::Image1DBuffer::ISA = OpenCL::Image::; |
586 | @OpenCL::Image1DBuffer::ISA = OpenCL::Image::; |
414 | |
587 | |
415 | @OpenCL::UserEvent::ISA = OpenCL::Event::; |
588 | @OpenCL::UserEvent::ISA = OpenCL::Event::; |
|
|
589 | |
|
|
590 | @OpenCL::MappedBuffer::ISA = |
|
|
591 | @OpenCL::MappedImage::ISA = OpenCL::Mapped::; |
416 | } |
592 | } |
417 | |
593 | |
418 | =head2 THE OpenCL PACKAGE |
594 | =head2 THE OpenCL PACKAGE |
419 | |
595 | |
420 | =over 4 |
596 | =over 4 |
… | |
… | |
422 | =item $int = OpenCL::errno |
598 | =item $int = OpenCL::errno |
423 | |
599 | |
424 | The last error returned by a function - it's only valid after an error occured |
600 | The last error returned by a function - it's only valid after an error occured |
425 | and before calling another OpenCL function. |
601 | and before calling another OpenCL function. |
426 | |
602 | |
427 | =item $str = OpenCL::err2str $errval |
603 | =item $str = OpenCL::err2str [$errval] |
428 | |
604 | |
429 | Comverts an error value into a human readable string. |
605 | Converts an error value into a human readable string. IF no error value is |
|
|
606 | given, then the last error will be used (as returned by OpenCL::errno). |
430 | |
607 | |
431 | =item $str = OpenCL::enum2str $enum |
608 | =item $str = OpenCL::enum2str $enum |
432 | |
609 | |
433 | Converts most enum values (of parameter names, image format constants, |
610 | Converts most enum values (of parameter names, image format constants, |
434 | object types, addressing and filter modes, command types etc.) into a |
611 | object types, addressing and filter modes, command types etc.) into a |
… | |
… | |
440 | |
617 | |
441 | Returns all available OpenCL::Platform objects. |
618 | Returns all available OpenCL::Platform objects. |
442 | |
619 | |
443 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetPlatformIDs.html> |
620 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetPlatformIDs.html> |
444 | |
621 | |
445 | =item $ctx = OpenCL::context_from_type $properties, $type = OpenCL::DEVICE_TYPE_DEFAULT, $notify = undef |
622 | =item $ctx = OpenCL::context_from_type $properties, $type = OpenCL::DEVICE_TYPE_DEFAULT, $callback->($err, $pvt) = $print_stderr |
446 | |
623 | |
447 | Tries to create a context from a default device and platform - never worked for me. |
624 | Tries to create a context from a default device and platform type - never worked for me. |
|
|
625 | |
|
|
626 | type: OpenCL::DEVICE_TYPE_DEFAULT, OpenCL::DEVICE_TYPE_CPU, OpenCL::DEVICE_TYPE_GPU, |
|
|
627 | OpenCL::DEVICE_TYPE_ACCELERATOR, OpenCL::DEVICE_TYPE_CUSTOM, OpenCL::DEVICE_TYPE_ALL. |
448 | |
628 | |
449 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateContextFromType.html> |
629 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateContextFromType.html> |
450 | |
630 | |
|
|
631 | =item $ctx = OpenCL::context $properties, \@devices, $callback->($err, $pvt) = $print_stderr) |
|
|
632 | |
|
|
633 | Create a new OpenCL::Context object using the given device object(s). This |
|
|
634 | function isn't implemented yet, use C<< $platform->context >> instead. |
|
|
635 | |
|
|
636 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateContext.html> |
|
|
637 | |
451 | =item OpenCL::wait_for_events $wait_events... |
638 | =item OpenCL::wait_for_events $wait_events... |
452 | |
639 | |
453 | Waits for all events to complete. |
640 | Waits for all events to complete. |
454 | |
641 | |
455 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clWaitForEvents.html> |
642 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clWaitForEvents.html> |
|
|
643 | |
|
|
644 | =item OpenCL::poll |
|
|
645 | |
|
|
646 | Checks if there are any outstanding events (see L<EVENT SYSTEM>) and |
|
|
647 | invokes their callbacks. |
|
|
648 | |
|
|
649 | =item $OpenCL::INTERRUPT |
|
|
650 | |
|
|
651 | The L<Async::Interrupt> object used to signal asynchronous events (see |
|
|
652 | L<EVENT SYSTEM>). |
|
|
653 | |
|
|
654 | =cut |
|
|
655 | |
|
|
656 | our $INTERRUPT = new Async::Interrupt c_cb => [$POLL_FUNC, 0]; |
|
|
657 | |
|
|
658 | &_eq_initialise ($INTERRUPT->signal_func); |
|
|
659 | |
|
|
660 | =item $OpenCL::WATCHER |
|
|
661 | |
|
|
662 | The L<AnyEvent> watcher object used to watch for asynchronous events (see |
|
|
663 | L<EVENT SYSTEM>). This variable is C<undef> until L<AnyEvent> has been |
|
|
664 | loaded I<and> initialised (e.g. by calling C<AnyEvent::detect>). |
|
|
665 | |
|
|
666 | =cut |
|
|
667 | |
|
|
668 | our $WATCHER; |
|
|
669 | |
|
|
670 | sub _init_anyevent { |
|
|
671 | $INTERRUPT->block; |
|
|
672 | $WATCHER = AE::io ($INTERRUPT->pipe_fileno, 0, sub { $INTERRUPT->handle }); |
|
|
673 | } |
|
|
674 | |
|
|
675 | if (defined $AnyEvent::MODEL) { |
|
|
676 | _init_anyevent; |
|
|
677 | } else { |
|
|
678 | push @AnyEvent::post_detect, \&_init_anyevent; |
|
|
679 | } |
456 | |
680 | |
457 | =back |
681 | =back |
458 | |
682 | |
459 | =head2 THE OpenCL::Object CLASS |
683 | =head2 THE OpenCL::Object CLASS |
460 | |
684 | |
… | |
… | |
472 | C<IV> type in your code and cast that to the correct type. |
696 | C<IV> type in your code and cast that to the correct type. |
473 | |
697 | |
474 | =cut |
698 | =cut |
475 | |
699 | |
476 | sub OpenCL::Object::id { |
700 | sub OpenCL::Object::id { |
|
|
701 | ref $_[0] eq "SCALAR" |
477 | ${$_[0]} |
702 | ? ${ $_[0] } |
|
|
703 | : $_[0][0] |
478 | } |
704 | } |
479 | |
705 | |
480 | =back |
706 | =back |
481 | |
707 | |
482 | =head2 THE OpenCL::Platform CLASS |
708 | =head2 THE OpenCL::Platform CLASS |
… | |
… | |
485 | |
711 | |
486 | =item @devices = $platform->devices ($type = OpenCL::DEVICE_TYPE_ALL) |
712 | =item @devices = $platform->devices ($type = OpenCL::DEVICE_TYPE_ALL) |
487 | |
713 | |
488 | Returns a list of matching OpenCL::Device objects. |
714 | Returns a list of matching OpenCL::Device objects. |
489 | |
715 | |
490 | =item $ctx = $platform->context_from_type ($properties, $type = OpenCL::DEVICE_TYPE_DEFAULT, $notify = undef) |
716 | =item $ctx = $platform->context_from_type ($properties, $type = OpenCL::DEVICE_TYPE_DEFAULT, $callback->($err, $pvt) = $print_stderr) |
491 | |
717 | |
492 | Tries to create a context. Never worked for me, and you need devices explicitly anyway. |
718 | Tries to create a context. Never worked for me, and you need devices explicitly anyway. |
493 | |
719 | |
494 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateContextFromType.html> |
720 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateContextFromType.html> |
495 | |
721 | |
496 | =item $ctx = $platform->context ($properties = undef, @$devices, $notify = undef) |
722 | =item $ctx = $platform->context ($properties, \@devices, $callback->($err, $pvt) = $print_stderr) |
497 | |
723 | |
498 | Create a new OpenCL::Context object using the given device object(s)- a |
724 | Create a new OpenCL::Context object using the given device object(s)- a |
499 | CL_CONTEXT_PLATFORM property is supplied automatically. |
725 | CL_CONTEXT_PLATFORM property is supplied automatically. |
500 | |
726 | |
501 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateContext.html> |
727 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateContext.html> |
… | |
… | |
520 | |
746 | |
521 | =for gengetinfo begin platform |
747 | =for gengetinfo begin platform |
522 | |
748 | |
523 | =item $string = $platform->profile |
749 | =item $string = $platform->profile |
524 | |
750 | |
525 | Calls C<clGetPlatformInfo> with C<CL_PLATFORM_PROFILE> and returns the result. |
751 | Calls C<clGetPlatformInfo> with C<OpenCL::PLATFORM_PROFILE> and returns the result. |
526 | |
752 | |
527 | =item $string = $platform->version |
753 | =item $string = $platform->version |
528 | |
754 | |
529 | Calls C<clGetPlatformInfo> with C<CL_PLATFORM_VERSION> and returns the result. |
755 | Calls C<clGetPlatformInfo> with C<OpenCL::PLATFORM_VERSION> and returns the result. |
530 | |
756 | |
531 | =item $string = $platform->name |
757 | =item $string = $platform->name |
532 | |
758 | |
533 | Calls C<clGetPlatformInfo> with C<CL_PLATFORM_NAME> and returns the result. |
759 | Calls C<clGetPlatformInfo> with C<OpenCL::PLATFORM_NAME> and returns the result. |
534 | |
760 | |
535 | =item $string = $platform->vendor |
761 | =item $string = $platform->vendor |
536 | |
762 | |
537 | Calls C<clGetPlatformInfo> with C<CL_PLATFORM_VENDOR> and returns the result. |
763 | Calls C<clGetPlatformInfo> with C<OpenCL::PLATFORM_VENDOR> and returns the result. |
538 | |
764 | |
539 | =item $string = $platform->extensions |
765 | =item $string = $platform->extensions |
540 | |
766 | |
541 | Calls C<clGetPlatformInfo> with C<CL_PLATFORM_EXTENSIONS> and returns the result. |
767 | Calls C<clGetPlatformInfo> with C<OpenCL::PLATFORM_EXTENSIONS> and returns the result. |
542 | |
768 | |
543 | =for gengetinfo end platform |
769 | =for gengetinfo end platform |
544 | |
770 | |
545 | =back |
771 | =back |
546 | |
772 | |
… | |
… | |
552 | |
778 | |
553 | See C<< $platform->info >> for details. |
779 | See C<< $platform->info >> for details. |
554 | |
780 | |
555 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetDeviceInfo.html> |
781 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetDeviceInfo.html> |
556 | |
782 | |
|
|
783 | =item @devices = $device->sub_devices (\@properties) |
|
|
784 | |
|
|
785 | Creates OpencL::SubDevice objects by partitioning an existing device. |
|
|
786 | |
|
|
787 | L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clCreateSubDevices.html> |
|
|
788 | |
557 | =for gengetinfo begin device |
789 | =for gengetinfo begin device |
558 | |
790 | |
559 | =item $device_type = $device->type |
791 | =item $device_type = $device->type |
560 | |
792 | |
561 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_TYPE> and returns the result. |
793 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_TYPE> and returns the result. |
562 | |
794 | |
563 | =item $uint = $device->vendor_id |
795 | =item $uint = $device->vendor_id |
564 | |
796 | |
565 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_VENDOR_ID> and returns the result. |
797 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_VENDOR_ID> and returns the result. |
566 | |
798 | |
567 | =item $uint = $device->max_compute_units |
799 | =item $uint = $device->max_compute_units |
568 | |
800 | |
569 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_COMPUTE_UNITS> and returns the result. |
801 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MAX_COMPUTE_UNITS> and returns the result. |
570 | |
802 | |
571 | =item $uint = $device->max_work_item_dimensions |
803 | =item $uint = $device->max_work_item_dimensions |
572 | |
804 | |
573 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_WORK_ITEM_DIMENSIONS> and returns the result. |
805 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MAX_WORK_ITEM_DIMENSIONS> and returns the result. |
574 | |
806 | |
575 | =item $int = $device->max_work_group_size |
807 | =item $int = $device->max_work_group_size |
576 | |
808 | |
577 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_WORK_GROUP_SIZE> and returns the result. |
809 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MAX_WORK_GROUP_SIZE> and returns the result. |
578 | |
810 | |
579 | =item @ints = $device->max_work_item_sizes |
811 | =item @ints = $device->max_work_item_sizes |
580 | |
812 | |
581 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_WORK_ITEM_SIZES> and returns the result. |
813 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MAX_WORK_ITEM_SIZES> and returns the result. |
582 | |
814 | |
583 | =item $uint = $device->preferred_vector_width_char |
815 | =item $uint = $device->preferred_vector_width_char |
584 | |
816 | |
585 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_PREFERRED_VECTOR_WIDTH_CHAR> and returns the result. |
817 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PREFERRED_VECTOR_WIDTH_CHAR> and returns the result. |
586 | |
818 | |
587 | =item $uint = $device->preferred_vector_width_short |
819 | =item $uint = $device->preferred_vector_width_short |
588 | |
820 | |
589 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_PREFERRED_VECTOR_WIDTH_SHORT> and returns the result. |
821 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PREFERRED_VECTOR_WIDTH_SHORT> and returns the result. |
590 | |
822 | |
591 | =item $uint = $device->preferred_vector_width_int |
823 | =item $uint = $device->preferred_vector_width_int |
592 | |
824 | |
593 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_PREFERRED_VECTOR_WIDTH_INT> and returns the result. |
825 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PREFERRED_VECTOR_WIDTH_INT> and returns the result. |
594 | |
826 | |
595 | =item $uint = $device->preferred_vector_width_long |
827 | =item $uint = $device->preferred_vector_width_long |
596 | |
828 | |
597 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_PREFERRED_VECTOR_WIDTH_LONG> and returns the result. |
829 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PREFERRED_VECTOR_WIDTH_LONG> and returns the result. |
598 | |
830 | |
599 | =item $uint = $device->preferred_vector_width_float |
831 | =item $uint = $device->preferred_vector_width_float |
600 | |
832 | |
601 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_PREFERRED_VECTOR_WIDTH_FLOAT> and returns the result. |
833 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PREFERRED_VECTOR_WIDTH_FLOAT> and returns the result. |
602 | |
834 | |
603 | =item $uint = $device->preferred_vector_width_double |
835 | =item $uint = $device->preferred_vector_width_double |
604 | |
836 | |
605 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_PREFERRED_VECTOR_WIDTH_DOUBLE> and returns the result. |
837 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PREFERRED_VECTOR_WIDTH_DOUBLE> and returns the result. |
606 | |
838 | |
607 | =item $uint = $device->max_clock_frequency |
839 | =item $uint = $device->max_clock_frequency |
608 | |
840 | |
609 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_CLOCK_FREQUENCY> and returns the result. |
841 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MAX_CLOCK_FREQUENCY> and returns the result. |
610 | |
842 | |
611 | =item $bitfield = $device->address_bits |
843 | =item $bitfield = $device->address_bits |
612 | |
844 | |
613 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_ADDRESS_BITS> and returns the result. |
845 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_ADDRESS_BITS> and returns the result. |
614 | |
846 | |
615 | =item $uint = $device->max_read_image_args |
847 | =item $uint = $device->max_read_image_args |
616 | |
848 | |
617 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_READ_IMAGE_ARGS> and returns the result. |
849 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MAX_READ_IMAGE_ARGS> and returns the result. |
618 | |
850 | |
619 | =item $uint = $device->max_write_image_args |
851 | =item $uint = $device->max_write_image_args |
620 | |
852 | |
621 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_WRITE_IMAGE_ARGS> and returns the result. |
853 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MAX_WRITE_IMAGE_ARGS> and returns the result. |
622 | |
854 | |
623 | =item $ulong = $device->max_mem_alloc_size |
855 | =item $ulong = $device->max_mem_alloc_size |
624 | |
856 | |
625 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_MEM_ALLOC_SIZE> and returns the result. |
857 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MAX_MEM_ALLOC_SIZE> and returns the result. |
626 | |
858 | |
627 | =item $int = $device->image2d_max_width |
859 | =item $int = $device->image2d_max_width |
628 | |
860 | |
629 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_IMAGE2D_MAX_WIDTH> and returns the result. |
861 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_IMAGE2D_MAX_WIDTH> and returns the result. |
630 | |
862 | |
631 | =item $int = $device->image2d_max_height |
863 | =item $int = $device->image2d_max_height |
632 | |
864 | |
633 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_IMAGE2D_MAX_HEIGHT> and returns the result. |
865 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_IMAGE2D_MAX_HEIGHT> and returns the result. |
634 | |
866 | |
635 | =item $int = $device->image3d_max_width |
867 | =item $int = $device->image3d_max_width |
636 | |
868 | |
637 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_IMAGE3D_MAX_WIDTH> and returns the result. |
869 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_IMAGE3D_MAX_WIDTH> and returns the result. |
638 | |
870 | |
639 | =item $int = $device->image3d_max_height |
871 | =item $int = $device->image3d_max_height |
640 | |
872 | |
641 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_IMAGE3D_MAX_HEIGHT> and returns the result. |
873 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_IMAGE3D_MAX_HEIGHT> and returns the result. |
642 | |
874 | |
643 | =item $int = $device->image3d_max_depth |
875 | =item $int = $device->image3d_max_depth |
644 | |
876 | |
645 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_IMAGE3D_MAX_DEPTH> and returns the result. |
877 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_IMAGE3D_MAX_DEPTH> and returns the result. |
646 | |
878 | |
647 | =item $uint = $device->image_support |
879 | =item $uint = $device->image_support |
648 | |
880 | |
649 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_IMAGE_SUPPORT> and returns the result. |
881 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_IMAGE_SUPPORT> and returns the result. |
650 | |
882 | |
651 | =item $int = $device->max_parameter_size |
883 | =item $int = $device->max_parameter_size |
652 | |
884 | |
653 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_PARAMETER_SIZE> and returns the result. |
885 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MAX_PARAMETER_SIZE> and returns the result. |
654 | |
886 | |
655 | =item $uint = $device->max_samplers |
887 | =item $uint = $device->max_samplers |
656 | |
888 | |
657 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_SAMPLERS> and returns the result. |
889 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MAX_SAMPLERS> and returns the result. |
658 | |
890 | |
659 | =item $uint = $device->mem_base_addr_align |
891 | =item $uint = $device->mem_base_addr_align |
660 | |
892 | |
661 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_MEM_BASE_ADDR_ALIGN> and returns the result. |
893 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MEM_BASE_ADDR_ALIGN> and returns the result. |
662 | |
894 | |
663 | =item $uint = $device->min_data_type_align_size |
895 | =item $uint = $device->min_data_type_align_size |
664 | |
896 | |
665 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_MIN_DATA_TYPE_ALIGN_SIZE> and returns the result. |
897 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MIN_DATA_TYPE_ALIGN_SIZE> and returns the result. |
666 | |
898 | |
667 | =item $device_fp_config = $device->single_fp_config |
899 | =item $device_fp_config = $device->single_fp_config |
668 | |
900 | |
669 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_SINGLE_FP_CONFIG> and returns the result. |
901 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_SINGLE_FP_CONFIG> and returns the result. |
670 | |
902 | |
671 | =item $device_mem_cache_type = $device->global_mem_cache_type |
903 | =item $device_mem_cache_type = $device->global_mem_cache_type |
672 | |
904 | |
673 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_GLOBAL_MEM_CACHE_TYPE> and returns the result. |
905 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_GLOBAL_MEM_CACHE_TYPE> and returns the result. |
674 | |
906 | |
675 | =item $uint = $device->global_mem_cacheline_size |
907 | =item $uint = $device->global_mem_cacheline_size |
676 | |
908 | |
677 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_GLOBAL_MEM_CACHELINE_SIZE> and returns the result. |
909 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_GLOBAL_MEM_CACHELINE_SIZE> and returns the result. |
678 | |
910 | |
679 | =item $ulong = $device->global_mem_cache_size |
911 | =item $ulong = $device->global_mem_cache_size |
680 | |
912 | |
681 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_GLOBAL_MEM_CACHE_SIZE> and returns the result. |
913 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_GLOBAL_MEM_CACHE_SIZE> and returns the result. |
682 | |
914 | |
683 | =item $ulong = $device->global_mem_size |
915 | =item $ulong = $device->global_mem_size |
684 | |
916 | |
685 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_GLOBAL_MEM_SIZE> and returns the result. |
917 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_GLOBAL_MEM_SIZE> and returns the result. |
686 | |
918 | |
687 | =item $ulong = $device->max_constant_buffer_size |
919 | =item $ulong = $device->max_constant_buffer_size |
688 | |
920 | |
689 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_CONSTANT_BUFFER_SIZE> and returns the result. |
921 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MAX_CONSTANT_BUFFER_SIZE> and returns the result. |
690 | |
922 | |
691 | =item $uint = $device->max_constant_args |
923 | =item $uint = $device->max_constant_args |
692 | |
924 | |
693 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_CONSTANT_ARGS> and returns the result. |
925 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MAX_CONSTANT_ARGS> and returns the result. |
694 | |
926 | |
695 | =item $device_local_mem_type = $device->local_mem_type |
927 | =item $device_local_mem_type = $device->local_mem_type |
696 | |
928 | |
697 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_LOCAL_MEM_TYPE> and returns the result. |
929 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_LOCAL_MEM_TYPE> and returns the result. |
698 | |
930 | |
699 | =item $ulong = $device->local_mem_size |
931 | =item $ulong = $device->local_mem_size |
700 | |
932 | |
701 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_LOCAL_MEM_SIZE> and returns the result. |
933 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_LOCAL_MEM_SIZE> and returns the result. |
702 | |
934 | |
703 | =item $boolean = $device->error_correction_support |
935 | =item $boolean = $device->error_correction_support |
704 | |
936 | |
705 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_ERROR_CORRECTION_SUPPORT> and returns the result. |
937 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_ERROR_CORRECTION_SUPPORT> and returns the result. |
706 | |
938 | |
707 | =item $int = $device->profiling_timer_resolution |
939 | =item $int = $device->profiling_timer_resolution |
708 | |
940 | |
709 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_PROFILING_TIMER_RESOLUTION> and returns the result. |
941 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PROFILING_TIMER_RESOLUTION> and returns the result. |
710 | |
942 | |
711 | =item $boolean = $device->endian_little |
943 | =item $boolean = $device->endian_little |
712 | |
944 | |
713 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_ENDIAN_LITTLE> and returns the result. |
945 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_ENDIAN_LITTLE> and returns the result. |
714 | |
946 | |
715 | =item $boolean = $device->available |
947 | =item $boolean = $device->available |
716 | |
948 | |
717 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_AVAILABLE> and returns the result. |
949 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_AVAILABLE> and returns the result. |
718 | |
950 | |
719 | =item $boolean = $device->compiler_available |
951 | =item $boolean = $device->compiler_available |
720 | |
952 | |
721 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_COMPILER_AVAILABLE> and returns the result. |
953 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_COMPILER_AVAILABLE> and returns the result. |
722 | |
954 | |
723 | =item $device_exec_capabilities = $device->execution_capabilities |
955 | =item $device_exec_capabilities = $device->execution_capabilities |
724 | |
956 | |
725 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_EXECUTION_CAPABILITIES> and returns the result. |
957 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_EXECUTION_CAPABILITIES> and returns the result. |
726 | |
958 | |
727 | =item $command_queue_properties = $device->properties |
959 | =item $command_queue_properties = $device->properties |
728 | |
960 | |
729 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_QUEUE_PROPERTIES> and returns the result. |
961 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_QUEUE_PROPERTIES> and returns the result. |
730 | |
962 | |
731 | =item $ = $device->platform |
963 | =item $ = $device->platform |
732 | |
964 | |
733 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_PLATFORM> and returns the result. |
965 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PLATFORM> and returns the result. |
734 | |
966 | |
735 | =item $string = $device->name |
967 | =item $string = $device->name |
736 | |
968 | |
737 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_NAME> and returns the result. |
969 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_NAME> and returns the result. |
738 | |
970 | |
739 | =item $string = $device->vendor |
971 | =item $string = $device->vendor |
740 | |
972 | |
741 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_VENDOR> and returns the result. |
973 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_VENDOR> and returns the result. |
742 | |
974 | |
743 | =item $string = $device->driver_version |
975 | =item $string = $device->driver_version |
744 | |
976 | |
745 | Calls C<clGetDeviceInfo> with C<CL_DRIVER_VERSION> and returns the result. |
977 | Calls C<clGetDeviceInfo> with C<OpenCL::DRIVER_VERSION> and returns the result. |
746 | |
978 | |
747 | =item $string = $device->profile |
979 | =item $string = $device->profile |
748 | |
980 | |
749 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_PROFILE> and returns the result. |
981 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PROFILE> and returns the result. |
750 | |
982 | |
751 | =item $string = $device->version |
983 | =item $string = $device->version |
752 | |
984 | |
753 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_VERSION> and returns the result. |
985 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_VERSION> and returns the result. |
754 | |
986 | |
755 | =item $string = $device->extensions |
987 | =item $string = $device->extensions |
756 | |
988 | |
757 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_EXTENSIONS> and returns the result. |
989 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_EXTENSIONS> and returns the result. |
758 | |
990 | |
759 | =item $uint = $device->preferred_vector_width_half |
991 | =item $uint = $device->preferred_vector_width_half |
760 | |
992 | |
761 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_PREFERRED_VECTOR_WIDTH_HALF> and returns the result. |
993 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PREFERRED_VECTOR_WIDTH_HALF> and returns the result. |
762 | |
994 | |
763 | =item $uint = $device->native_vector_width_char |
995 | =item $uint = $device->native_vector_width_char |
764 | |
996 | |
765 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_NATIVE_VECTOR_WIDTH_CHAR> and returns the result. |
997 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_NATIVE_VECTOR_WIDTH_CHAR> and returns the result. |
766 | |
998 | |
767 | =item $uint = $device->native_vector_width_short |
999 | =item $uint = $device->native_vector_width_short |
768 | |
1000 | |
769 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_NATIVE_VECTOR_WIDTH_SHORT> and returns the result. |
1001 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_NATIVE_VECTOR_WIDTH_SHORT> and returns the result. |
770 | |
1002 | |
771 | =item $uint = $device->native_vector_width_int |
1003 | =item $uint = $device->native_vector_width_int |
772 | |
1004 | |
773 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_NATIVE_VECTOR_WIDTH_INT> and returns the result. |
1005 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_NATIVE_VECTOR_WIDTH_INT> and returns the result. |
774 | |
1006 | |
775 | =item $uint = $device->native_vector_width_long |
1007 | =item $uint = $device->native_vector_width_long |
776 | |
1008 | |
777 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_NATIVE_VECTOR_WIDTH_LONG> and returns the result. |
1009 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_NATIVE_VECTOR_WIDTH_LONG> and returns the result. |
778 | |
1010 | |
779 | =item $uint = $device->native_vector_width_float |
1011 | =item $uint = $device->native_vector_width_float |
780 | |
1012 | |
781 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_NATIVE_VECTOR_WIDTH_FLOAT> and returns the result. |
1013 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_NATIVE_VECTOR_WIDTH_FLOAT> and returns the result. |
782 | |
1014 | |
783 | =item $uint = $device->native_vector_width_double |
1015 | =item $uint = $device->native_vector_width_double |
784 | |
1016 | |
785 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_NATIVE_VECTOR_WIDTH_DOUBLE> and returns the result. |
1017 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_NATIVE_VECTOR_WIDTH_DOUBLE> and returns the result. |
786 | |
1018 | |
787 | =item $uint = $device->native_vector_width_half |
1019 | =item $uint = $device->native_vector_width_half |
788 | |
1020 | |
789 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_NATIVE_VECTOR_WIDTH_HALF> and returns the result. |
1021 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_NATIVE_VECTOR_WIDTH_HALF> and returns the result. |
790 | |
1022 | |
791 | =item $device_fp_config = $device->double_fp_config |
1023 | =item $device_fp_config = $device->double_fp_config |
792 | |
1024 | |
793 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_DOUBLE_FP_CONFIG> and returns the result. |
1025 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_DOUBLE_FP_CONFIG> and returns the result. |
794 | |
1026 | |
795 | =item $device_fp_config = $device->half_fp_config |
1027 | =item $device_fp_config = $device->half_fp_config |
796 | |
1028 | |
797 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_HALF_FP_CONFIG> and returns the result. |
1029 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_HALF_FP_CONFIG> and returns the result. |
798 | |
1030 | |
799 | =item $boolean = $device->host_unified_memory |
1031 | =item $boolean = $device->host_unified_memory |
800 | |
1032 | |
801 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_HOST_UNIFIED_MEMORY> and returns the result. |
1033 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_HOST_UNIFIED_MEMORY> and returns the result. |
802 | |
1034 | |
803 | =item $device = $device->parent_device_ext |
1035 | =item $device = $device->parent_device_ext |
804 | |
1036 | |
805 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_PARENT_DEVICE_EXT> and returns the result. |
1037 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PARENT_DEVICE_EXT> and returns the result. |
806 | |
1038 | |
807 | =item @device_partition_property_exts = $device->partition_types_ext |
1039 | =item @device_partition_property_exts = $device->partition_types_ext |
808 | |
1040 | |
809 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_PARTITION_TYPES_EXT> and returns the result. |
1041 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PARTITION_TYPES_EXT> and returns the result. |
810 | |
1042 | |
811 | =item @device_partition_property_exts = $device->affinity_domains_ext |
1043 | =item @device_partition_property_exts = $device->affinity_domains_ext |
812 | |
1044 | |
813 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_AFFINITY_DOMAINS_EXT> and returns the result. |
1045 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_AFFINITY_DOMAINS_EXT> and returns the result. |
814 | |
1046 | |
815 | =item $uint = $device->reference_count_ext |
1047 | =item $uint = $device->reference_count_ext |
816 | |
1048 | |
817 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_REFERENCE_COUNT_EXT> and returns the result. |
1049 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_REFERENCE_COUNT_EXT> and returns the result. |
818 | |
1050 | |
819 | =item @device_partition_property_exts = $device->partition_style_ext |
1051 | =item @device_partition_property_exts = $device->partition_style_ext |
820 | |
1052 | |
821 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_PARTITION_STYLE_EXT> and returns the result. |
1053 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PARTITION_STYLE_EXT> and returns the result. |
822 | |
1054 | |
823 | =for gengetinfo end device |
1055 | =for gengetinfo end device |
824 | |
1056 | |
825 | =back |
1057 | =back |
826 | |
1058 | |
827 | =head2 THE OpenCL::Context CLASS |
1059 | =head2 THE OpenCL::Context CLASS |
|
|
1060 | |
|
|
1061 | An OpenCL::Context is basically a container, or manager, for a number of |
|
|
1062 | devices of a platform. It is used to create all sorts of secondary objects |
|
|
1063 | such as buffers, queues, programs and so on. |
|
|
1064 | |
|
|
1065 | All context creation functions and methods take a list of properties |
|
|
1066 | (type-value pairs). All property values can be specified as integers - |
|
|
1067 | some additionally support other types: |
|
|
1068 | |
|
|
1069 | =over 4 |
|
|
1070 | |
|
|
1071 | =item OpenCL::CONTEXT_PLATFORM |
|
|
1072 | |
|
|
1073 | Also accepts OpenCL::Platform objects. |
|
|
1074 | |
|
|
1075 | =item OpenCL::GLX_DISPLAY_KHR |
|
|
1076 | |
|
|
1077 | Also accepts C<undef>, in which case a deep and troubling hack is engaged |
|
|
1078 | to find the current glx display (see L<GLX SUPPORT>). |
|
|
1079 | |
|
|
1080 | =item OpenCL::GL_CONTEXT_KHR |
|
|
1081 | |
|
|
1082 | Also accepts C<undef>, in which case a deep and troubling hack is engaged |
|
|
1083 | to find the current glx context (see L<GLX SUPPORT>). |
|
|
1084 | |
|
|
1085 | =back |
828 | |
1086 | |
829 | =over 4 |
1087 | =over 4 |
830 | |
1088 | |
831 | =item $prog = $ctx->build_program ($program, $options = "") |
1089 | =item $prog = $ctx->build_program ($program, $options = "") |
832 | |
1090 | |
… | |
… | |
844 | my ($self, $prog, $options) = @_; |
1102 | my ($self, $prog, $options) = @_; |
845 | |
1103 | |
846 | $prog = $self->program_with_source ($prog) |
1104 | $prog = $self->program_with_source ($prog) |
847 | unless ref $prog; |
1105 | unless ref $prog; |
848 | |
1106 | |
|
|
1107 | eval { $prog->build (undef, $options); 1 } |
|
|
1108 | or errno == BUILD_PROGRAM_FAILURE |
|
|
1109 | or errno == INVALID_BINARY # workaround nvidia bug |
|
|
1110 | or Carp::croak "OpenCL::Context->build_program: " . err2str; |
|
|
1111 | |
|
|
1112 | # we check status for all devices |
849 | for my $dev ($self->devices) { |
1113 | for my $dev ($self->devices) { |
850 | eval { $prog->build ($dev, $options); 1 } |
1114 | $prog->build_status ($dev) == BUILD_SUCCESS |
851 | or Carp::croak "Building OpenCL program for device '" . $dev->name . "' failed:\n" |
1115 | or Carp::croak "Building OpenCL program for device '" . $dev->name . "' failed:\n" |
852 | . $prog->build_log ($dev); |
1116 | . $prog->build_log ($dev); |
853 | } |
1117 | } |
854 | |
1118 | |
855 | $prog |
1119 | $prog |
856 | } |
1120 | } |
857 | |
1121 | |
… | |
… | |
874 | =item $buf = $ctx->buffer ($flags, $len) |
1138 | =item $buf = $ctx->buffer ($flags, $len) |
875 | |
1139 | |
876 | Creates a new OpenCL::Buffer (actually OpenCL::BufferObj) object with the |
1140 | Creates a new OpenCL::Buffer (actually OpenCL::BufferObj) object with the |
877 | given flags and octet-size. |
1141 | given flags and octet-size. |
878 | |
1142 | |
|
|
1143 | flags: OpenCL::MEM_READ_WRITE, OpenCL::MEM_WRITE_ONLY, OpenCL::MEM_READ_ONLY, |
|
|
1144 | OpenCL::MEM_USE_HOST_PTR, OpenCL::MEM_ALLOC_HOST_PTR, OpenCL::MEM_COPY_HOST_PTR, |
|
|
1145 | OpenCL::MEM_HOST_WRITE_ONLY, OpenCL::MEM_HOST_READ_ONLY, OpenCL::MEM_HOST_NO_ACCESS. |
|
|
1146 | |
879 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateBuffer.html> |
1147 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateBuffer.html> |
880 | |
1148 | |
881 | =item $buf = $ctx->buffer_sv ($flags, $data) |
1149 | =item $buf = $ctx->buffer_sv ($flags, $data) |
882 | |
1150 | |
883 | Creates a new OpenCL::Buffer (actually OpenCL::BufferObj) object and |
1151 | Creates a new OpenCL::Buffer (actually OpenCL::BufferObj) object and |
884 | initialise it with the given data values. |
1152 | initialise it with the given data values. |
885 | |
1153 | |
886 | =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) |
1154 | =item $img = $ctx->image ($self, $flags, $channel_order, $channel_type, $type, $width, $height, $depth = 0, $array_size = 0, $row_pitch = 0, $slice_pitch = 0, $num_mip_level = 0, $num_samples = 0, $*data = &PL_sv_undef) |
887 | |
1155 | |
888 | Creates a new OpenCL::Image object and optionally initialises it with |
1156 | Creates a new OpenCL::Image object and optionally initialises it with |
889 | the given data values. |
1157 | the given data values. |
890 | |
1158 | |
|
|
1159 | channel_order: OpenCL::R, OpenCL::A, OpenCL::RG, OpenCL::RA, OpenCL::RGB, |
|
|
1160 | OpenCL::RGBA, OpenCL::BGRA, OpenCL::ARGB, OpenCL::INTENSITY, OpenCL::LUMINANCE, |
|
|
1161 | OpenCL::Rx, OpenCL::RGx, OpenCL::RGBx. |
|
|
1162 | |
|
|
1163 | channel_type: OpenCL::SNORM_INT8, OpenCL::SNORM_INT16, OpenCL::UNORM_INT8, |
|
|
1164 | OpenCL::UNORM_INT16, OpenCL::UNORM_SHORT_565, OpenCL::UNORM_SHORT_555, |
|
|
1165 | OpenCL::UNORM_INT_101010, OpenCL::SIGNED_INT8, OpenCL::SIGNED_INT16, |
|
|
1166 | OpenCL::SIGNED_INT32, OpenCL::UNSIGNED_INT8, OpenCL::UNSIGNED_INT16, |
|
|
1167 | OpenCL::UNSIGNED_INT32, OpenCL::HALF_FLOAT, OpenCL::FLOAT. |
|
|
1168 | |
|
|
1169 | |
|
|
1170 | type: OpenCL::MEM_OBJECT_BUFFER, OpenCL::MEM_OBJECT_IMAGE2D, |
|
|
1171 | OpenCL::MEM_OBJECT_IMAGE3D, OpenCL::MEM_OBJECT_IMAGE2D_ARRAY, |
|
|
1172 | OpenCL::MEM_OBJECT_IMAGE1D, OpenCL::MEM_OBJECT_IMAGE1D_ARRAY, |
|
|
1173 | OpenCL::MEM_OBJECT_IMAGE1D_BUFFER. |
|
|
1174 | |
891 | L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clCreateImage.html> |
1175 | L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clCreateImage.html> |
892 | |
1176 | |
893 | =item $img = $ctx->image2d ($flags, $channel_order, $channel_type, $width, $height, $row_pitch = 0, $data = undef) |
1177 | =item $img = $ctx->image2d ($flags, $channel_order, $channel_type, $width, $height, $row_pitch = 0, $data = undef) |
894 | |
1178 | |
895 | Creates a new OpenCL::Image2D object and optionally initialises it with |
1179 | Creates a new OpenCL::Image2D object and optionally initialises it with |
… | |
… | |
907 | =item $buffer = $ctx->gl_buffer ($flags, $bufobj) |
1191 | =item $buffer = $ctx->gl_buffer ($flags, $bufobj) |
908 | |
1192 | |
909 | Creates a new OpenCL::Buffer (actually OpenCL::BufferObj) object that refers to the given |
1193 | Creates a new OpenCL::Buffer (actually OpenCL::BufferObj) object that refers to the given |
910 | OpenGL buffer object. |
1194 | OpenGL buffer object. |
911 | |
1195 | |
|
|
1196 | flags: OpenCL::MEM_READ_WRITE, OpenCL::MEM_READ_ONLY, OpenCL::MEM_WRITE_ONLY. |
|
|
1197 | |
912 | http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateFromGLBuffer.html |
1198 | http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateFromGLBuffer.html |
913 | |
1199 | |
914 | =item $img = $ctx->gl_texture ($flags, $target, $miplevel, $texture) |
1200 | =item $img = $ctx->gl_texture ($flags, $target, $miplevel, $texture) |
915 | |
1201 | |
916 | Creates a new OpenCL::Image object that refers to the given OpenGL |
1202 | Creates a new OpenCL::Image object that refers to the given OpenGL |
917 | texture object or buffer. |
1203 | texture object or buffer. |
918 | |
1204 | |
|
|
1205 | target: GL_TEXTURE_1D, GL_TEXTURE_1D_ARRAY, GL_TEXTURE_BUFFER, |
|
|
1206 | GL_TEXTURE_2D, GL_TEXTURE_2D_ARRAY, GL_TEXTURE_3D, |
|
|
1207 | GL_TEXTURE_CUBE_MAP_POSITIVE_X, GL_TEXTURE_CUBE_MAP_POSITIVE_Y, |
|
|
1208 | GL_TEXTURE_CUBE_MAP_POSITIVE_Z, GL_TEXTURE_CUBE_MAP_NEGATIVE_X, |
|
|
1209 | GL_TEXTURE_CUBE_MAP_NEGATIVE_Y, GL_TEXTURE_CUBE_MAP_NEGATIVE_Z, |
|
|
1210 | GL_TEXTURE_RECTANGLE/GL_TEXTURE_RECTANGLE_ARB. |
|
|
1211 | |
919 | http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clCreateFromGLTexture.html |
1212 | http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clCreateFromGLTexture.html |
920 | |
1213 | |
921 | =item $img = $ctx->gl_texture2d ($flags, $target, $miplevel, $texture) |
1214 | =item $img = $ctx->gl_texture2d ($flags, $target, $miplevel, $texture) |
922 | |
1215 | |
923 | Creates a new OpenCL::Image2D object that refers to the given OpenGL |
1216 | Creates a new OpenCL::Image2D object that refers to the given OpenGL |
… | |
… | |
948 | |
1241 | |
949 | =item $sampler = $ctx->sampler ($normalized_coords, $addressing_mode, $filter_mode) |
1242 | =item $sampler = $ctx->sampler ($normalized_coords, $addressing_mode, $filter_mode) |
950 | |
1243 | |
951 | Creates a new OpenCL::Sampler object. |
1244 | Creates a new OpenCL::Sampler object. |
952 | |
1245 | |
|
|
1246 | addressing_mode: OpenCL::ADDRESS_NONE, OpenCL::ADDRESS_CLAMP_TO_EDGE, |
|
|
1247 | OpenCL::ADDRESS_CLAMP, OpenCL::ADDRESS_REPEAT, OpenCL::ADDRESS_MIRRORED_REPEAT. |
|
|
1248 | |
|
|
1249 | filter_mode: OpenCL::FILTER_NEAREST, OpenCL::FILTER_LINEAR. |
|
|
1250 | |
953 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateSampler.html> |
1251 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateSampler.html> |
954 | |
1252 | |
955 | =item $program = $ctx->program_with_source ($string) |
1253 | =item $program = $ctx->program_with_source ($string) |
956 | |
1254 | |
957 | Creates a new OpenCL::Program object from the given source code. |
1255 | Creates a new OpenCL::Program object from the given source code. |
958 | |
1256 | |
959 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateProgramWithSource.html> |
1257 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateProgramWithSource.html> |
960 | |
1258 | |
|
|
1259 | =item ($program, \@status) = $ctx->program_with_binary (\@devices, \@binaries) |
|
|
1260 | |
|
|
1261 | Creates a new OpenCL::Program object from the given binaries. |
|
|
1262 | |
|
|
1263 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateProgramWithBinary.html> |
|
|
1264 | |
|
|
1265 | Example: clone an existing program object that contains a successfully |
|
|
1266 | compiled program, no matter how useless this is. |
|
|
1267 | |
|
|
1268 | my $clone = $ctx->program_with_binary ([$prog->devices], [$prog->binaries]); |
|
|
1269 | |
|
|
1270 | =item $program = $ctx->program_with_built_in_kernels (\@devices, $kernel_names) |
|
|
1271 | |
|
|
1272 | Creates a new OpenCL::Program object from the given built-in kernel names. |
|
|
1273 | |
|
|
1274 | L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clCreateProgramWithBuiltInKernels.html> |
|
|
1275 | |
961 | =item $packed_value = $ctx->info ($name) |
1276 | =item $packed_value = $ctx->info ($name) |
962 | |
1277 | |
963 | See C<< $platform->info >> for details. |
1278 | See C<< $platform->info >> for details. |
964 | |
1279 | |
965 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetContextInfo.html> |
1280 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetContextInfo.html> |
966 | |
1281 | |
967 | =for gengetinfo begin context |
1282 | =for gengetinfo begin context |
968 | |
1283 | |
969 | =item $uint = $context->reference_count |
1284 | =item $uint = $context->reference_count |
970 | |
1285 | |
971 | Calls C<clGetContextInfo> with C<CL_CONTEXT_REFERENCE_COUNT> and returns the result. |
1286 | Calls C<clGetContextInfo> with C<OpenCL::CONTEXT_REFERENCE_COUNT> and returns the result. |
972 | |
1287 | |
973 | =item @devices = $context->devices |
1288 | =item @devices = $context->devices |
974 | |
1289 | |
975 | Calls C<clGetContextInfo> with C<CL_CONTEXT_DEVICES> and returns the result. |
1290 | Calls C<clGetContextInfo> with C<OpenCL::CONTEXT_DEVICES> and returns the result. |
976 | |
1291 | |
977 | =item @property_ints = $context->properties |
1292 | =item @property_ints = $context->properties |
978 | |
1293 | |
979 | Calls C<clGetContextInfo> with C<CL_CONTEXT_PROPERTIES> and returns the result. |
1294 | Calls C<clGetContextInfo> with C<OpenCL::CONTEXT_PROPERTIES> and returns the result. |
980 | |
1295 | |
981 | =item $uint = $context->num_devices |
1296 | =item $uint = $context->num_devices |
982 | |
1297 | |
983 | Calls C<clGetContextInfo> with C<CL_CONTEXT_NUM_DEVICES> and returns the result. |
1298 | Calls C<clGetContextInfo> with C<OpenCL::CONTEXT_NUM_DEVICES> and returns the result. |
984 | |
1299 | |
985 | =for gengetinfo end context |
1300 | =for gengetinfo end context |
986 | |
1301 | |
987 | =back |
1302 | =back |
988 | |
1303 | |
989 | =head2 THE OpenCL::Queue CLASS |
1304 | =head2 THE OpenCL::Queue CLASS |
990 | |
1305 | |
991 | An OpenCL::Queue represents an execution queue for OpenCL. You execute |
1306 | An OpenCL::Queue represents an execution queue for OpenCL. You execute |
992 | requests by calling their respective C<enqueue_xxx> method and waitinf for |
1307 | requests by calling their respective method and waiting for it to complete |
993 | it to complete in some way. |
1308 | in some way. |
994 | |
1309 | |
995 | All the enqueue methods return an event object that can be used to wait |
1310 | Most methods that enqueue some request return an event object that can |
996 | for completion, unless the method is called in void context, in which case |
1311 | be used to wait for completion (optionally using a callback), unless |
997 | no event object is created. |
1312 | the method is called in void context, in which case no event object is |
|
|
1313 | created. |
998 | |
1314 | |
999 | They also allow you to specify any number of other event objects that this |
1315 | They also allow you to specify any number of other event objects that this |
1000 | request has to wait for before it starts executing, by simply passing the |
1316 | request has to wait for before it starts executing, by simply passing the |
1001 | event objects as extra parameters to the enqueue methods. To simplify |
1317 | event objects as extra parameters to the enqueue methods. To simplify |
1002 | program design, this module ignores any C<undef> values in the list of |
1318 | program design, this module ignores any C<undef> values in the list of |
1003 | events. This makes it possible to code operations such as this, without |
1319 | events. This makes it possible to code operations such as this, without |
1004 | having to put a valid event object into C<$event> first: |
1320 | having to put a valid event object into C<$event> first: |
1005 | |
1321 | |
1006 | $event = $queue->enqueue_xxx (..., $event); |
1322 | $event = $queue->xxx (..., $event); |
1007 | |
1323 | |
1008 | Queues execute in-order by default, without any parallelism, so in most |
1324 | Queues execute in-order by default, without any parallelism, so in most |
1009 | cases (i.e. you use only one queue) it's not necessary to wait for or |
1325 | cases (i.e. you use only one queue) it's not necessary to wait for or |
1010 | create event objects, althoguh an our of order queue is often a bit |
1326 | create event objects, althoguh an our of order queue is often a bit |
1011 | faster. |
1327 | faster. |
1012 | |
1328 | |
1013 | =over 4 |
1329 | =over 4 |
1014 | |
1330 | |
1015 | =item $ev = $queue->enqueue_read_buffer ($buffer, $blocking, $offset, $len, $data, $wait_events...) |
1331 | =item $ev = $queue->read_buffer ($buffer, $blocking, $offset, $len, $data, $wait_events...) |
1016 | |
1332 | |
1017 | Reads data from buffer into the given string. |
1333 | Reads data from buffer into the given string. |
1018 | |
1334 | |
1019 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReadBuffer.html> |
1335 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReadBuffer.html> |
1020 | |
1336 | |
1021 | =item $ev = $queue->enqueue_write_buffer ($buffer, $blocking, $offset, $data, $wait_events...) |
1337 | =item $ev = $queue->write_buffer ($buffer, $blocking, $offset, $data, $wait_events...) |
1022 | |
1338 | |
1023 | Writes data to buffer from the given string. |
1339 | Writes data to buffer from the given string. |
1024 | |
1340 | |
1025 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWriteBuffer.html> |
1341 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWriteBuffer.html> |
1026 | |
1342 | |
1027 | =item $ev = $queue->enqueue_copy_buffer ($src, $dst, $src_offset, $dst_offset, $len, $wait_events...) |
1343 | =item $ev = $queue->copy_buffer ($src, $dst, $src_offset, $dst_offset, $len, $wait_events...) |
1028 | |
1344 | |
1029 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyBuffer.html> |
1345 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyBuffer.html> |
1030 | |
1346 | |
1031 | =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...) |
1347 | =item $ev = $queue->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...) |
1032 | |
1348 | |
1033 | http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReadBufferRect.html |
1349 | http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReadBufferRect.html |
1034 | |
1350 | |
1035 | =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...) |
1351 | =item $ev = $queue->write_buffer_rect (OpenCL::Memory buf, cl_bool blocking, $buf_x, $buf_y, $buf_z, $host_x, $host_y, $host_z, $width, $height, $depth, $buf_row_pitch, $buf_slice_pitch, $host_row_pitch, $host_slice_pitch, $data, $wait_events...) |
1036 | |
1352 | |
1037 | http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWriteBufferRect.html |
1353 | http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWriteBufferRect.html |
1038 | |
1354 | |
1039 | =item $ev = $queue->enqueue_read_image ($src, $blocking, $x, $y, $z, $width, $height, $depth, $row_pitch, $slice_pitch, $data, $wait_events...) |
|
|
1040 | |
|
|
1041 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyBufferRect.html> |
|
|
1042 | |
|
|
1043 | =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...) |
1355 | =item $ev = $queue->copy_buffer_to_image ($src_buffer, $dst_image, $src_offset, $dst_x, $dst_y, $dst_z, $width, $height, $depth, $wait_events...) |
|
|
1356 | |
|
|
1357 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyBufferToImage.html> |
|
|
1358 | |
|
|
1359 | =item $ev = $queue->read_image ($src, $blocking, $x, $y, $z, $width, $height, $depth, $row_pitch, $slice_pitch, $data, $wait_events...) |
|
|
1360 | |
|
|
1361 | C<$row_pitch> (and C<$slice_pitch>) can be C<0>, in which case the OpenCL |
|
|
1362 | module uses the image width (and height) to supply default values. |
1044 | |
1363 | |
1045 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReadImage.html> |
1364 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReadImage.html> |
1046 | |
1365 | |
1047 | =item $ev = $queue->enqueue_write_image ($src, $blocking, $x, $y, $z, $width, $height, $depth, $row_pitch, $slice_pitch, $data, $wait_events...) |
1366 | =item $ev = $queue->write_image ($src, $blocking, $x, $y, $z, $width, $height, $depth, $row_pitch, $slice_pitch, $data, $wait_events...) |
1048 | |
1367 | |
|
|
1368 | C<$row_pitch> (and C<$slice_pitch>) can be C<0>, in which case the OpenCL |
|
|
1369 | module uses the image width (and height) to supply default values. |
1049 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWriteImage.html> |
1370 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWriteImage.html> |
1050 | |
1371 | |
1051 | =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...) |
1372 | =item $ev = $queue->copy_image ($src_image, $dst_image, $src_x, $src_y, $src_z, $dst_x, $dst_y, $dst_z, $width, $height, $depth, $wait_events...) |
1052 | |
1373 | |
1053 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyImage.html> |
1374 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyImage.html> |
1054 | |
1375 | |
1055 | =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...) |
1376 | =item $ev = $queue->copy_image_to_buffer ($src_image, $dst_image, $src_x, $src_y, $src_z, $width, $height, $depth, $dst_offset, $wait_events...) |
1056 | |
1377 | |
1057 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyImageToBuffer.html> |
1378 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyImageToBuffer.html> |
1058 | |
1379 | |
1059 | =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...) |
1380 | =item $ev = $queue->copy_buffer_rect ($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...) |
1060 | |
1381 | |
1061 | Yeah. |
1382 | Yeah. |
1062 | |
1383 | |
1063 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyBufferToImage.html>. |
1384 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyBufferToImage.html>. |
1064 | |
1385 | |
1065 | =item $ev = $queue->enqueue_fill_buffer ($mem, $pattern, $offset, $size, ...) |
1386 | =item $ev = $queue->fill_buffer ($mem, $pattern, $offset, $size, ...) |
1066 | |
1387 | |
1067 | Fills the given buffer object with repeated applications of C<$pattern>, |
1388 | Fills the given buffer object with repeated applications of C<$pattern>, |
1068 | starting at C<$offset> for C<$size> octets. |
1389 | starting at C<$offset> for C<$size> octets. |
1069 | |
1390 | |
1070 | L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clEnqueueFillBuffer.html> |
1391 | L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clEnqueueFillBuffer.html> |
1071 | |
1392 | |
1072 | =item $ev = $queue->enqueue_fill_image ($img, $r, $g, $b, $a, $x, $y, $z, $width, $height, $depth, ...) |
1393 | =item $ev = $queue->fill_image ($img, $r, $g, $b, $a, $x, $y, $z, $width, $height, $depth, ...) |
1073 | |
1394 | |
1074 | Fills the given image area with the given rgba colour components. The |
1395 | Fills the given image area with the given rgba colour components. The |
1075 | components are normally floating point values between C<0> and C<1>, |
1396 | components are normally floating point values between C<0> and C<1>, |
1076 | except when the image channel data type is a signe dor unsigned |
1397 | except when the image channel data type is a signe dor unsigned |
1077 | unnormalised format, in which case the range is determined by the format. |
1398 | unnormalised format, in which case the range is determined by the format. |
1078 | |
1399 | |
1079 | L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clEnqueueFillImage.html> |
1400 | L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clEnqueueFillImage.html> |
1080 | |
1401 | |
1081 | =item $ev = $queue->enqueue_task ($kernel, $wait_events...) |
1402 | =item $ev = $queue->task ($kernel, $wait_events...) |
1082 | |
1403 | |
1083 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueTask.html> |
1404 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueTask.html> |
1084 | |
1405 | |
1085 | =item $ev = $queue->enqueue_nd_range_kernel ($kernel, @$global_work_offset, @$global_work_size, @$local_work_size, $wait_events...) |
1406 | =item $ev = $queue->nd_range_kernel ($kernel, \@global_work_offset, \@global_work_size, \@local_work_size, $wait_events...) |
1086 | |
1407 | |
1087 | Enqueues a kernel execution. |
1408 | Enqueues a kernel execution. |
1088 | |
1409 | |
1089 | @$global_work_size must be specified as a reference to an array of |
1410 | \@global_work_size must be specified as a reference to an array of |
1090 | integers specifying the work sizes (element counts). |
1411 | integers specifying the work sizes (element counts). |
1091 | |
1412 | |
1092 | @$global_work_offset must be either C<undef> (in which case all offsets |
1413 | \@global_work_offset must be either C<undef> (in which case all offsets |
1093 | are C<0>), or a reference to an array of work offsets, with the same number |
1414 | are C<0>), or a reference to an array of work offsets, with the same number |
1094 | of elements as @$global_work_size. |
1415 | of elements as \@global_work_size. |
1095 | |
1416 | |
1096 | @$local_work_size must be either C<undef> (in which case the |
1417 | \@local_work_size must be either C<undef> (in which case the |
1097 | implementation is supposed to choose good local work sizes), or a |
1418 | implementation is supposed to choose good local work sizes), or a |
1098 | reference to an array of local work sizes, with the same number of |
1419 | reference to an array of local work sizes, with the same number of |
1099 | elements as @$global_work_size. |
1420 | elements as \@global_work_size. |
1100 | |
1421 | |
1101 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueNDRangeKernel.html> |
1422 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueNDRangeKernel.html> |
1102 | |
1423 | |
|
|
1424 | =item $ev = $queue->migrate_mem_objects (\@mem_objects, $flags, $wait_events...) |
|
|
1425 | |
|
|
1426 | Migrates a number of OpenCL::Memory objects to or from the device. |
|
|
1427 | |
|
|
1428 | flags: OpenCL::MIGRATE_MEM_OBJECT_HOST, OpenCL::MIGRATE_MEM_OBJECT_CONTENT_UNDEFINED |
|
|
1429 | |
|
|
1430 | L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clEnqueueMigrateMemObjects.html> |
|
|
1431 | |
1103 | =item $ev = $queue->enqueue_acquire_gl_objects ([object, ...], $wait_events...) |
1432 | =item $ev = $queue->acquire_gl_objects ([object, ...], $wait_events...) |
1104 | |
1433 | |
1105 | Enqueues a list (an array-ref of OpenCL::Memory objects) to be acquired |
1434 | Enqueues a list (an array-ref of OpenCL::Memory objects) to be acquired |
1106 | for subsequent OpenCL usage. |
1435 | for subsequent OpenCL usage. |
1107 | |
1436 | |
1108 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueAcquireGLObjects.html> |
1437 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueAcquireGLObjects.html> |
1109 | |
1438 | |
1110 | =item $ev = $queue->enqueue_release_gl_objects ([object, ...], $wait_events...) |
1439 | =item $ev = $queue->release_gl_objects ([object, ...], $wait_events...) |
1111 | |
1440 | |
1112 | Enqueues a list (an array-ref of OpenCL::Memory objects) to be released |
1441 | Enqueues a list (an array-ref of OpenCL::Memory objects) to be released |
1113 | for subsequent OpenGL usage. |
1442 | for subsequent OpenGL usage. |
1114 | |
1443 | |
1115 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReleaseGLObjects.html> |
1444 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReleaseGLObjects.html> |
1116 | |
1445 | |
1117 | =item $ev = $queue->enqueue_wait_for_events ($wait_events...) |
1446 | =item $ev = $queue->wait_for_events ($wait_events...) |
1118 | |
1447 | |
1119 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWaitForEvents.html> |
1448 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWaitForEvents.html> |
1120 | |
1449 | |
1121 | =item $ev = $queue->enqueue_marker ($wait_events...) |
1450 | =item $ev = $queue->marker ($wait_events...) |
1122 | |
1451 | |
1123 | L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clEnqueueMarkerWithWaitList.html> |
1452 | L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clEnqueueMarkerWithWaitList.html> |
1124 | |
1453 | |
1125 | =item $ev = $queue->enqueue_barrier ($wait_events...) |
1454 | =item $ev = $queue->barrier ($wait_events...) |
1126 | |
1455 | |
1127 | L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clEnqueueBarrierWithWaitList.html> |
1456 | L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clEnqueueBarrierWithWaitList.html> |
1128 | |
1457 | |
1129 | =item $queue->flush |
1458 | =item $queue->flush |
1130 | |
1459 | |
… | |
… | |
1142 | |
1471 | |
1143 | =for gengetinfo begin command_queue |
1472 | =for gengetinfo begin command_queue |
1144 | |
1473 | |
1145 | =item $ctx = $command_queue->context |
1474 | =item $ctx = $command_queue->context |
1146 | |
1475 | |
1147 | Calls C<clGetCommandQueueInfo> with C<CL_QUEUE_CONTEXT> and returns the result. |
1476 | Calls C<clGetCommandQueueInfo> with C<OpenCL::QUEUE_CONTEXT> and returns the result. |
1148 | |
1477 | |
1149 | =item $device = $command_queue->device |
1478 | =item $device = $command_queue->device |
1150 | |
1479 | |
1151 | Calls C<clGetCommandQueueInfo> with C<CL_QUEUE_DEVICE> and returns the result. |
1480 | Calls C<clGetCommandQueueInfo> with C<OpenCL::QUEUE_DEVICE> and returns the result. |
1152 | |
1481 | |
1153 | =item $uint = $command_queue->reference_count |
1482 | =item $uint = $command_queue->reference_count |
1154 | |
1483 | |
1155 | Calls C<clGetCommandQueueInfo> with C<CL_QUEUE_REFERENCE_COUNT> and returns the result. |
1484 | Calls C<clGetCommandQueueInfo> with C<OpenCL::QUEUE_REFERENCE_COUNT> and returns the result. |
1156 | |
1485 | |
1157 | =item $command_queue_properties = $command_queue->properties |
1486 | =item $command_queue_properties = $command_queue->properties |
1158 | |
1487 | |
1159 | Calls C<clGetCommandQueueInfo> with C<CL_QUEUE_PROPERTIES> and returns the result. |
1488 | Calls C<clGetCommandQueueInfo> with C<OpenCL::QUEUE_PROPERTIES> and returns the result. |
1160 | |
1489 | |
1161 | =for gengetinfo end command_queue |
1490 | =for gengetinfo end command_queue |
|
|
1491 | |
|
|
1492 | =back |
|
|
1493 | |
|
|
1494 | =head3 MEMORY MAPPED BUFFERS |
|
|
1495 | |
|
|
1496 | OpenCL allows you to map buffers and images to host memory (read: perl |
|
|
1497 | scalars). This is done much like reading or copying a buffer, by enqueuing |
|
|
1498 | a map or unmap operation on the command queue. |
|
|
1499 | |
|
|
1500 | The map operations return an C<OpenCL::Mapped> object - see L<THE |
|
|
1501 | OpenCL::Mapped CLASS> section for details on what to do with these |
|
|
1502 | objects. |
|
|
1503 | |
|
|
1504 | The object will be unmapped automatically when the mapped object is |
|
|
1505 | destroyed (you can use a barrier to make sure the unmap has finished, |
|
|
1506 | before using the buffer in a kernel), but you can also enqueue an unmap |
|
|
1507 | operation manually. |
|
|
1508 | |
|
|
1509 | =over 4 |
|
|
1510 | |
|
|
1511 | =item $mapped_buffer = $queue->map_buffer ($buf, $blocking=1, $map_flags=OpenCL::MAP_READ|OpenCL::MAP_WRITE, $offset=0, $size=undef, $wait_events...) |
|
|
1512 | |
|
|
1513 | Maps the given buffer into host memory and returns an |
|
|
1514 | C<OpenCL::MappedBuffer> object. If C<$size> is specified as undef, then |
|
|
1515 | the map will extend to the end of the buffer. |
|
|
1516 | |
|
|
1517 | map_flags: OpenCL::MAP_READ, OpenCL::MAP_WRITE, OpenCL::MAP_WRITE_INVALIDATE_REGION. |
|
|
1518 | |
|
|
1519 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueMapBuffer.html> |
|
|
1520 | |
|
|
1521 | Example: map the buffer $buf fully and replace the first 4 bytes by "abcd", then unmap. |
|
|
1522 | |
|
|
1523 | { |
|
|
1524 | my $mapped = $queue->map_buffer ($buf, 1, OpenCL::MAP_WRITE); |
|
|
1525 | substr $$mapped, 0, 4, "abcd"; |
|
|
1526 | } # asynchronously unmap because $mapped is destroyed |
|
|
1527 | |
|
|
1528 | =item $mapped_image = $queue->map_image ($img, $blocking=1, $map_flags=OpenCL::MAP_READ|OpenCL::MAP_WRITE, $x=0, $y=0, $z=0, $width=undef, $height=undef, $depth=undef, $wait_events...) |
|
|
1529 | |
|
|
1530 | Maps the given image area into host memory and return an |
|
|
1531 | C<OpenCL::MappedImage> object. |
|
|
1532 | |
|
|
1533 | If any of C<$width>, C<$height> and/or C<$depth> are C<undef> then they |
|
|
1534 | will be replaced by the maximum possible value. |
|
|
1535 | |
|
|
1536 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueMapImage.html> |
|
|
1537 | |
|
|
1538 | Example: map an image (with OpenCL::UNSIGNED_INT8 channel type) and set |
|
|
1539 | the first channel of the leftmost column to 5, then explicitly unmap |
|
|
1540 | it. You are not necessarily meant to do it this way, this example just |
|
|
1541 | shows you the accessors to use :) |
|
|
1542 | |
|
|
1543 | my $mapped = $queue->map_image ($image, 1, OpenCL::MAP_WRITE); |
|
|
1544 | |
|
|
1545 | $mapped->set ($_ * $mapped->row_pitch, pack "C", 5) |
|
|
1546 | for 0..$image->height; |
|
|
1547 | |
|
|
1548 | $mapped->unmap;. |
|
|
1549 | $mapped->wait; # only needed for out of order queues normally |
|
|
1550 | |
|
|
1551 | =item $ev = $queue->unmap ($mapped, $wait_events...) |
|
|
1552 | |
|
|
1553 | Unmaps the data from host memory. You must not call any methods that |
|
|
1554 | modify the data, or modify the data scalar directly, after calling this |
|
|
1555 | method. |
|
|
1556 | |
|
|
1557 | The mapped event object will always be passed as part of the |
|
|
1558 | $wait_events. The mapped event object will be replaced by the new event |
|
|
1559 | object that this request creates. |
1162 | |
1560 | |
1163 | =back |
1561 | =back |
1164 | |
1562 | |
1165 | =head2 THE OpenCL::Memory CLASS |
1563 | =head2 THE OpenCL::Memory CLASS |
1166 | |
1564 | |
… | |
… | |
1177 | |
1575 | |
1178 | =for gengetinfo begin mem |
1576 | =for gengetinfo begin mem |
1179 | |
1577 | |
1180 | =item $mem_object_type = $mem->type |
1578 | =item $mem_object_type = $mem->type |
1181 | |
1579 | |
1182 | Calls C<clGetMemObjectInfo> with C<CL_MEM_TYPE> and returns the result. |
1580 | Calls C<clGetMemObjectInfo> with C<OpenCL::MEM_TYPE> and returns the result. |
1183 | |
1581 | |
1184 | =item $mem_flags = $mem->flags |
1582 | =item $mem_flags = $mem->flags |
1185 | |
1583 | |
1186 | Calls C<clGetMemObjectInfo> with C<CL_MEM_FLAGS> and returns the result. |
1584 | Calls C<clGetMemObjectInfo> with C<OpenCL::MEM_FLAGS> and returns the result. |
1187 | |
1585 | |
1188 | =item $int = $mem->size |
1586 | =item $int = $mem->size |
1189 | |
1587 | |
1190 | Calls C<clGetMemObjectInfo> with C<CL_MEM_SIZE> and returns the result. |
1588 | Calls C<clGetMemObjectInfo> with C<OpenCL::MEM_SIZE> and returns the result. |
1191 | |
1589 | |
1192 | =item $ptr_value = $mem->host_ptr |
1590 | =item $ptr_value = $mem->host_ptr |
1193 | |
1591 | |
1194 | Calls C<clGetMemObjectInfo> with C<CL_MEM_HOST_PTR> and returns the result. |
1592 | Calls C<clGetMemObjectInfo> with C<OpenCL::MEM_HOST_PTR> and returns the result. |
1195 | |
1593 | |
1196 | =item $uint = $mem->map_count |
1594 | =item $uint = $mem->map_count |
1197 | |
1595 | |
1198 | Calls C<clGetMemObjectInfo> with C<CL_MEM_MAP_COUNT> and returns the result. |
1596 | Calls C<clGetMemObjectInfo> with C<OpenCL::MEM_MAP_COUNT> and returns the result. |
1199 | |
1597 | |
1200 | =item $uint = $mem->reference_count |
1598 | =item $uint = $mem->reference_count |
1201 | |
1599 | |
1202 | Calls C<clGetMemObjectInfo> with C<CL_MEM_REFERENCE_COUNT> and returns the result. |
1600 | Calls C<clGetMemObjectInfo> with C<OpenCL::MEM_REFERENCE_COUNT> and returns the result. |
1203 | |
1601 | |
1204 | =item $ctx = $mem->context |
1602 | =item $ctx = $mem->context |
1205 | |
1603 | |
1206 | Calls C<clGetMemObjectInfo> with C<CL_MEM_CONTEXT> and returns the result. |
1604 | Calls C<clGetMemObjectInfo> with C<OpenCL::MEM_CONTEXT> and returns the result. |
1207 | |
1605 | |
1208 | =item $mem = $mem->associated_memobject |
1606 | =item $mem = $mem->associated_memobject |
1209 | |
1607 | |
1210 | Calls C<clGetMemObjectInfo> with C<CL_MEM_ASSOCIATED_MEMOBJECT> and returns the result. |
1608 | Calls C<clGetMemObjectInfo> with C<OpenCL::MEM_ASSOCIATED_MEMOBJECT> and returns the result. |
1211 | |
1609 | |
1212 | =item $int = $mem->offset |
1610 | =item $int = $mem->offset |
1213 | |
1611 | |
1214 | Calls C<clGetMemObjectInfo> with C<CL_MEM_OFFSET> and returns the result. |
1612 | Calls C<clGetMemObjectInfo> with C<OpenCL::MEM_OFFSET> and returns the result. |
1215 | |
1613 | |
1216 | =for gengetinfo end mem |
1614 | =for gengetinfo end mem |
1217 | |
1615 | |
1218 | =item ($type, $name) = $mem->gl_object_info |
1616 | =item ($type, $name) = $mem->gl_object_info |
1219 | |
1617 | |
… | |
… | |
1271 | |
1669 | |
1272 | =for gengetinfo begin image |
1670 | =for gengetinfo begin image |
1273 | |
1671 | |
1274 | =item $int = $image->element_size |
1672 | =item $int = $image->element_size |
1275 | |
1673 | |
1276 | Calls C<clGetImageInfo> with C<CL_IMAGE_ELEMENT_SIZE> and returns the result. |
1674 | Calls C<clGetImageInfo> with C<OpenCL::IMAGE_ELEMENT_SIZE> and returns the result. |
1277 | |
1675 | |
1278 | =item $int = $image->row_pitch |
1676 | =item $int = $image->row_pitch |
1279 | |
1677 | |
1280 | Calls C<clGetImageInfo> with C<CL_IMAGE_ROW_PITCH> and returns the result. |
1678 | Calls C<clGetImageInfo> with C<OpenCL::IMAGE_ROW_PITCH> and returns the result. |
1281 | |
1679 | |
1282 | =item $int = $image->slice_pitch |
1680 | =item $int = $image->slice_pitch |
1283 | |
1681 | |
1284 | Calls C<clGetImageInfo> with C<CL_IMAGE_SLICE_PITCH> and returns the result. |
1682 | Calls C<clGetImageInfo> with C<OpenCL::IMAGE_SLICE_PITCH> and returns the result. |
1285 | |
1683 | |
1286 | =item $int = $image->width |
1684 | =item $int = $image->width |
1287 | |
1685 | |
1288 | Calls C<clGetImageInfo> with C<CL_IMAGE_WIDTH> and returns the result. |
1686 | Calls C<clGetImageInfo> with C<OpenCL::IMAGE_WIDTH> and returns the result. |
1289 | |
1687 | |
1290 | =item $int = $image->height |
1688 | =item $int = $image->height |
1291 | |
1689 | |
1292 | Calls C<clGetImageInfo> with C<CL_IMAGE_HEIGHT> and returns the result. |
1690 | Calls C<clGetImageInfo> with C<OpenCL::IMAGE_HEIGHT> and returns the result. |
1293 | |
1691 | |
1294 | =item $int = $image->depth |
1692 | =item $int = $image->depth |
1295 | |
1693 | |
1296 | Calls C<clGetImageInfo> with C<CL_IMAGE_DEPTH> and returns the result. |
1694 | Calls C<clGetImageInfo> with C<OpenCL::IMAGE_DEPTH> and returns the result. |
1297 | |
1695 | |
1298 | =for gengetinfo end image |
1696 | =for gengetinfo end image |
1299 | |
1697 | |
1300 | =for gengetinfo begin gl_texture |
1698 | =for gengetinfo begin gl_texture |
1301 | |
1699 | |
1302 | =item $GLenum = $gl_texture->target |
1700 | =item $GLenum = $gl_texture->target |
1303 | |
1701 | |
1304 | Calls C<clGetGLTextureInfo> with C<CL_GL_TEXTURE_TARGET> and returns the result. |
1702 | Calls C<clGetGLTextureInfo> with C<OpenCL::GL_TEXTURE_TARGET> and returns the result. |
1305 | |
1703 | |
1306 | =item $GLint = $gl_texture->gl_mipmap_level |
1704 | =item $GLint = $gl_texture->gl_mipmap_level |
1307 | |
1705 | |
1308 | Calls C<clGetGLTextureInfo> with C<CL_GL_MIPMAP_LEVEL> and returns the result. |
1706 | Calls C<clGetGLTextureInfo> with C<OpenCL::GL_MIPMAP_LEVEL> and returns the result. |
1309 | |
1707 | |
1310 | =for gengetinfo end gl_texture |
1708 | =for gengetinfo end gl_texture |
1311 | |
1709 | |
1312 | =back |
1710 | =back |
1313 | |
1711 | |
… | |
… | |
1323 | |
1721 | |
1324 | =for gengetinfo begin sampler |
1722 | =for gengetinfo begin sampler |
1325 | |
1723 | |
1326 | =item $uint = $sampler->reference_count |
1724 | =item $uint = $sampler->reference_count |
1327 | |
1725 | |
1328 | Calls C<clGetSamplerInfo> with C<CL_SAMPLER_REFERENCE_COUNT> and returns the result. |
1726 | Calls C<clGetSamplerInfo> with C<OpenCL::SAMPLER_REFERENCE_COUNT> and returns the result. |
1329 | |
1727 | |
1330 | =item $ctx = $sampler->context |
1728 | =item $ctx = $sampler->context |
1331 | |
1729 | |
1332 | Calls C<clGetSamplerInfo> with C<CL_SAMPLER_CONTEXT> and returns the result. |
1730 | Calls C<clGetSamplerInfo> with C<OpenCL::SAMPLER_CONTEXT> and returns the result. |
1333 | |
1731 | |
1334 | =item $addressing_mode = $sampler->normalized_coords |
1732 | =item $addressing_mode = $sampler->normalized_coords |
1335 | |
1733 | |
1336 | Calls C<clGetSamplerInfo> with C<CL_SAMPLER_NORMALIZED_COORDS> and returns the result. |
1734 | Calls C<clGetSamplerInfo> with C<OpenCL::SAMPLER_NORMALIZED_COORDS> and returns the result. |
1337 | |
1735 | |
1338 | =item $filter_mode = $sampler->addressing_mode |
1736 | =item $filter_mode = $sampler->addressing_mode |
1339 | |
1737 | |
1340 | Calls C<clGetSamplerInfo> with C<CL_SAMPLER_ADDRESSING_MODE> and returns the result. |
1738 | Calls C<clGetSamplerInfo> with C<OpenCL::SAMPLER_ADDRESSING_MODE> and returns the result. |
1341 | |
1739 | |
1342 | =item $boolean = $sampler->filter_mode |
1740 | =item $boolean = $sampler->filter_mode |
1343 | |
1741 | |
1344 | Calls C<clGetSamplerInfo> with C<CL_SAMPLER_FILTER_MODE> and returns the result. |
1742 | Calls C<clGetSamplerInfo> with C<OpenCL::SAMPLER_FILTER_MODE> and returns the result. |
1345 | |
1743 | |
1346 | =for gengetinfo end sampler |
1744 | =for gengetinfo end sampler |
1347 | |
1745 | |
1348 | =back |
1746 | =back |
1349 | |
1747 | |
1350 | =head2 THE OpenCL::Program CLASS |
1748 | =head2 THE OpenCL::Program CLASS |
1351 | |
1749 | |
1352 | =over 4 |
1750 | =over 4 |
1353 | |
1751 | |
1354 | =item $program->build ($device, $options = "") |
1752 | =item $program->build (\@devices = undef, $options = "", $cb->($program) = undef) |
1355 | |
1753 | |
1356 | Tries to build the program with the given options. See also the |
1754 | Tries to build the program with the given options. See also the |
1357 | C<$ctx->build> convenience function. |
1755 | C<$ctx->build> convenience function. |
1358 | |
1756 | |
|
|
1757 | If a callback is specified, then it will be called when compilation is |
|
|
1758 | finished. Note that many OpenCL implementations block your program while |
|
|
1759 | compiling whether you use a callback or not. See C<build_async> if you |
|
|
1760 | want to make sure the build is done in the background. |
|
|
1761 | |
|
|
1762 | Note that some OpenCL implementations act up badly, and don't call the |
|
|
1763 | callback in some error cases (but call it in others). This implementation |
|
|
1764 | assumes the callback will always be called, and leaks memory if this is |
|
|
1765 | not so. So best make sure you don't pass in invalid values. |
|
|
1766 | |
|
|
1767 | Some implementations fail with C<OpenCL::INVALID_BINARY> when the |
|
|
1768 | compilation state is successful but some later stage fails. |
|
|
1769 | |
|
|
1770 | options: C<-D name>, C<-D name=definition>, C<-I dir>, |
|
|
1771 | C<-cl-single-precision-constant>, C<-cl-denorms-are-zero>, |
|
|
1772 | C<-cl-fp32-correctly-rounded-divide-sqrt>, C<-cl-opt-disable>, |
|
|
1773 | C<-cl-mad-enable>, C<-cl-no-signed-zeros>, C<-cl-unsafe-math-optimizations>, |
|
|
1774 | C<-cl-finite-math-only>, C<-cl-fast-relaxed-math>, |
|
|
1775 | C<-w>, C<-Werror>, C<-cl-std=CL1.1/CL1.2>, C<-cl-kernel-arg-info>, |
|
|
1776 | C<-create-library>, C<-enable-link-options>. |
|
|
1777 | |
1359 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clBuildProgram.html> |
1778 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clBuildProgram.html> |
|
|
1779 | |
|
|
1780 | =item $program->build_async (\@devices = undef, $options = "", $cb->($program) = undef) |
|
|
1781 | |
|
|
1782 | Similar to C<< ->build >>, except it starts a thread, and never fails (you |
|
|
1783 | need to check the compilation status form the callback, or by polling). |
|
|
1784 | |
|
|
1785 | build_status: OpenCL::BUILD_SUCCESS, OpenCL::BUILD_NONE, |
|
|
1786 | OpenCL::BUILD_ERROR, OpenCL::BUILD_IN_PROGRESS. |
1360 | |
1787 | |
1361 | =item $packed_value = $program->build_info ($device, $name) |
1788 | =item $packed_value = $program->build_info ($device, $name) |
1362 | |
1789 | |
1363 | Similar to C<< $platform->info >>, but returns build info for a previous |
1790 | Similar to C<< $platform->info >>, but returns build info for a previous |
1364 | build attempt for the given device. |
1791 | build attempt for the given device. |
… | |
… | |
1380 | |
1807 | |
1381 | =for gengetinfo begin program_build |
1808 | =for gengetinfo begin program_build |
1382 | |
1809 | |
1383 | =item $build_status = $program->build_status ($device) |
1810 | =item $build_status = $program->build_status ($device) |
1384 | |
1811 | |
1385 | Calls C<clGetProgramBuildInfo> with C<CL_PROGRAM_BUILD_STATUS> and returns the result. |
1812 | Calls C<clGetProgramBuildInfo> with C<OpenCL::PROGRAM_BUILD_STATUS> and returns the result. |
1386 | |
1813 | |
1387 | =item $string = $program->build_options ($device) |
1814 | =item $string = $program->build_options ($device) |
1388 | |
1815 | |
1389 | Calls C<clGetProgramBuildInfo> with C<CL_PROGRAM_BUILD_OPTIONS> and returns the result. |
1816 | Calls C<clGetProgramBuildInfo> with C<OpenCL::PROGRAM_BUILD_OPTIONS> and returns the result. |
1390 | |
1817 | |
1391 | =item $string = $program->build_log ($device) |
1818 | =item $string = $program->build_log ($device) |
1392 | |
1819 | |
1393 | Calls C<clGetProgramBuildInfo> with C<CL_PROGRAM_BUILD_LOG> and returns the result. |
1820 | Calls C<clGetProgramBuildInfo> with C<OpenCL::PROGRAM_BUILD_LOG> and returns the result. |
1394 | |
1821 | |
1395 | =for gengetinfo end program_build |
1822 | =for gengetinfo end program_build |
1396 | |
1823 | |
1397 | =item $packed_value = $program->info ($name) |
1824 | =item $packed_value = $program->info ($name) |
1398 | |
1825 | |
… | |
… | |
1402 | |
1829 | |
1403 | =for gengetinfo begin program |
1830 | =for gengetinfo begin program |
1404 | |
1831 | |
1405 | =item $uint = $program->reference_count |
1832 | =item $uint = $program->reference_count |
1406 | |
1833 | |
1407 | Calls C<clGetProgramInfo> with C<CL_PROGRAM_REFERENCE_COUNT> and returns the result. |
1834 | Calls C<clGetProgramInfo> with C<OpenCL::PROGRAM_REFERENCE_COUNT> and returns the result. |
1408 | |
1835 | |
1409 | =item $ctx = $program->context |
1836 | =item $ctx = $program->context |
1410 | |
1837 | |
1411 | Calls C<clGetProgramInfo> with C<CL_PROGRAM_CONTEXT> and returns the result. |
1838 | Calls C<clGetProgramInfo> with C<OpenCL::PROGRAM_CONTEXT> and returns the result. |
1412 | |
1839 | |
1413 | =item $uint = $program->num_devices |
1840 | =item $uint = $program->num_devices |
1414 | |
1841 | |
1415 | Calls C<clGetProgramInfo> with C<CL_PROGRAM_NUM_DEVICES> and returns the result. |
1842 | Calls C<clGetProgramInfo> with C<OpenCL::PROGRAM_NUM_DEVICES> and returns the result. |
1416 | |
1843 | |
1417 | =item @devices = $program->devices |
1844 | =item @devices = $program->devices |
1418 | |
1845 | |
1419 | Calls C<clGetProgramInfo> with C<CL_PROGRAM_DEVICES> and returns the result. |
1846 | Calls C<clGetProgramInfo> with C<OpenCL::PROGRAM_DEVICES> and returns the result. |
1420 | |
1847 | |
1421 | =item $string = $program->source |
1848 | =item $string = $program->source |
1422 | |
1849 | |
1423 | Calls C<clGetProgramInfo> with C<CL_PROGRAM_SOURCE> and returns the result. |
1850 | Calls C<clGetProgramInfo> with C<OpenCL::PROGRAM_SOURCE> and returns the result. |
1424 | |
1851 | |
1425 | =item @ints = $program->binary_sizes |
1852 | =item @ints = $program->binary_sizes |
1426 | |
1853 | |
1427 | Calls C<clGetProgramInfo> with C<CL_PROGRAM_BINARY_SIZES> and returns the result. |
1854 | Calls C<clGetProgramInfo> with C<OpenCL::PROGRAM_BINARY_SIZES> and returns the result. |
1428 | |
1855 | |
1429 | =for gengetinfo end program |
1856 | =for gengetinfo end program |
1430 | |
1857 | |
1431 | =item @blobs = $program->binaries |
1858 | =item @blobs = $program->binaries |
1432 | |
1859 | |
… | |
… | |
1453 | |
1880 | |
1454 | =for gengetinfo begin kernel |
1881 | =for gengetinfo begin kernel |
1455 | |
1882 | |
1456 | =item $string = $kernel->function_name |
1883 | =item $string = $kernel->function_name |
1457 | |
1884 | |
1458 | Calls C<clGetKernelInfo> with C<CL_KERNEL_FUNCTION_NAME> and returns the result. |
1885 | Calls C<clGetKernelInfo> with C<OpenCL::KERNEL_FUNCTION_NAME> and returns the result. |
1459 | |
1886 | |
1460 | =item $uint = $kernel->num_args |
1887 | =item $uint = $kernel->num_args |
1461 | |
1888 | |
1462 | Calls C<clGetKernelInfo> with C<CL_KERNEL_NUM_ARGS> and returns the result. |
1889 | Calls C<clGetKernelInfo> with C<OpenCL::KERNEL_NUM_ARGS> and returns the result. |
1463 | |
1890 | |
1464 | =item $uint = $kernel->reference_count |
1891 | =item $uint = $kernel->reference_count |
1465 | |
1892 | |
1466 | Calls C<clGetKernelInfo> with C<CL_KERNEL_REFERENCE_COUNT> and returns the result. |
1893 | Calls C<clGetKernelInfo> with C<OpenCL::KERNEL_REFERENCE_COUNT> and returns the result. |
1467 | |
1894 | |
1468 | =item $ctx = $kernel->context |
1895 | =item $ctx = $kernel->context |
1469 | |
1896 | |
1470 | Calls C<clGetKernelInfo> with C<CL_KERNEL_CONTEXT> and returns the result. |
1897 | Calls C<clGetKernelInfo> with C<OpenCL::KERNEL_CONTEXT> and returns the result. |
1471 | |
1898 | |
1472 | =item $program = $kernel->program |
1899 | =item $program = $kernel->program |
1473 | |
1900 | |
1474 | Calls C<clGetKernelInfo> with C<CL_KERNEL_PROGRAM> and returns the result. |
1901 | Calls C<clGetKernelInfo> with C<OpenCL::KERNEL_PROGRAM> and returns the result. |
1475 | |
1902 | |
1476 | =for gengetinfo end kernel |
1903 | =for gengetinfo end kernel |
1477 | |
1904 | |
1478 | =item $packed_value = $kernel->work_group_info ($device, $name) |
1905 | =item $packed_value = $kernel->work_group_info ($device, $name) |
1479 | |
1906 | |
1480 | See C<< $platform->info >> for details. |
1907 | See C<< $platform->info >> for details. |
1481 | |
1908 | |
1482 | The reason this method is not called C<info> is that there already is an |
|
|
1483 | C<< ->info >> method. |
|
|
1484 | |
|
|
1485 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetKernelWorkGroupInfo.html> |
1909 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetKernelWorkGroupInfo.html> |
1486 | |
1910 | |
1487 | =for gengetinfo begin kernel_work_group |
1911 | =for gengetinfo begin kernel_work_group |
1488 | |
1912 | |
1489 | =item $int = $kernel->work_group_size ($device) |
1913 | =item $int = $kernel->work_group_size ($device) |
1490 | |
1914 | |
1491 | Calls C<clGetKernelWorkGroupInfo> with C<CL_KERNEL_WORK_GROUP_SIZE> and returns the result. |
1915 | Calls C<clGetKernelWorkGroupInfo> with C<OpenCL::KERNEL_WORK_GROUP_SIZE> and returns the result. |
1492 | |
1916 | |
1493 | =item @ints = $kernel->compile_work_group_size ($device) |
1917 | =item @ints = $kernel->compile_work_group_size ($device) |
1494 | |
1918 | |
1495 | Calls C<clGetKernelWorkGroupInfo> with C<CL_KERNEL_COMPILE_WORK_GROUP_SIZE> and returns the result. |
1919 | Calls C<clGetKernelWorkGroupInfo> with C<OpenCL::KERNEL_COMPILE_WORK_GROUP_SIZE> and returns the result. |
1496 | |
1920 | |
1497 | =item $ulong = $kernel->local_mem_size ($device) |
1921 | =item $ulong = $kernel->local_mem_size ($device) |
1498 | |
1922 | |
1499 | Calls C<clGetKernelWorkGroupInfo> with C<CL_KERNEL_LOCAL_MEM_SIZE> and returns the result. |
1923 | Calls C<clGetKernelWorkGroupInfo> with C<OpenCL::KERNEL_LOCAL_MEM_SIZE> and returns the result. |
1500 | |
1924 | |
1501 | =item $int = $kernel->preferred_work_group_size_multiple ($device) |
1925 | =item $int = $kernel->preferred_work_group_size_multiple ($device) |
1502 | |
1926 | |
1503 | Calls C<clGetKernelWorkGroupInfo> with C<CL_KERNEL_PREFERRED_WORK_GROUP_SIZE_MULTIPLE> and returns the result. |
1927 | Calls C<clGetKernelWorkGroupInfo> with C<OpenCL::KERNEL_PREFERRED_WORK_GROUP_SIZE_MULTIPLE> and returns the result. |
1504 | |
1928 | |
1505 | =item $ulong = $kernel->private_mem_size ($device) |
1929 | =item $ulong = $kernel->private_mem_size ($device) |
1506 | |
1930 | |
1507 | Calls C<clGetKernelWorkGroupInfo> with C<CL_KERNEL_PRIVATE_MEM_SIZE> and returns the result. |
1931 | Calls C<clGetKernelWorkGroupInfo> with C<OpenCL::KERNEL_PRIVATE_MEM_SIZE> and returns the result. |
1508 | |
1932 | |
1509 | =for gengetinfo end kernel_work_group |
1933 | =for gengetinfo end kernel_work_group |
1510 | |
1934 | |
|
|
1935 | =item $packed_value = $kernel->arg_info ($idx, $name) |
|
|
1936 | |
|
|
1937 | See C<< $platform->info >> for details. |
|
|
1938 | |
|
|
1939 | L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clGetKernelArgInfo.html> |
|
|
1940 | |
|
|
1941 | =for gengetinfo begin kernel_arg |
|
|
1942 | |
|
|
1943 | =item $kernel_arg_address_qualifier = $kernel->arg_address_qualifier ($idx) |
|
|
1944 | |
|
|
1945 | Calls C<clGetKernelArgInfo> with C<OpenCL::KERNEL_ARG_ADDRESS_QUALIFIER> and returns the result. |
|
|
1946 | |
|
|
1947 | =item $kernel_arg_access_qualifier = $kernel->arg_access_qualifier ($idx) |
|
|
1948 | |
|
|
1949 | Calls C<clGetKernelArgInfo> with C<OpenCL::KERNEL_ARG_ACCESS_QUALIFIER> and returns the result. |
|
|
1950 | |
|
|
1951 | =item $string = $kernel->arg_type_name ($idx) |
|
|
1952 | |
|
|
1953 | Calls C<clGetKernelArgInfo> with C<OpenCL::KERNEL_ARG_TYPE_NAME> and returns the result. |
|
|
1954 | |
|
|
1955 | =item $kernel_arg_type_qualifier = $kernel->arg_type_qualifier ($idx) |
|
|
1956 | |
|
|
1957 | Calls C<clGetKernelArgInfo> with C<OpenCL::KERNEL_ARG_TYPE_QUALIFIER> and returns the result. |
|
|
1958 | |
|
|
1959 | =item $string = $kernel->arg_name ($idx) |
|
|
1960 | |
|
|
1961 | Calls C<clGetKernelArgInfo> with C<OpenCL::KERNEL_ARG_NAME> and returns the result. |
|
|
1962 | |
|
|
1963 | =for gengetinfo end kernel_arg |
|
|
1964 | |
|
|
1965 | =item $kernel->setf ($format, ...) |
|
|
1966 | |
|
|
1967 | Sets the arguments of a kernel. Since OpenCL 1.1 doesn't have a generic |
|
|
1968 | way to set arguments (and with OpenCL 1.2 it might be rather slow), you |
|
|
1969 | need to specify a format argument, much as with C<printf>, to tell OpenCL |
|
|
1970 | what type of argument it is. |
|
|
1971 | |
|
|
1972 | The format arguments are single letters: |
|
|
1973 | |
|
|
1974 | c char |
|
|
1975 | C unsigned char |
|
|
1976 | s short |
|
|
1977 | S unsigned short |
|
|
1978 | i int |
|
|
1979 | I unsigned int |
|
|
1980 | l long |
|
|
1981 | L unsigned long |
|
|
1982 | |
|
|
1983 | h half float (0..65535) |
|
|
1984 | f float |
|
|
1985 | d double |
|
|
1986 | |
|
|
1987 | z local (octet size) |
|
|
1988 | |
|
|
1989 | m memory object (buffer or image) |
|
|
1990 | a sampler |
|
|
1991 | e event |
|
|
1992 | |
|
|
1993 | Space characters in the format string are ignored. |
|
|
1994 | |
|
|
1995 | Example: set the arguments for a kernel that expects an int, two floats, a buffer and an image. |
|
|
1996 | |
|
|
1997 | $kernel->setf ("i ff mm", 5, 0.5, 3, $buffer, $image); |
|
|
1998 | |
1511 | =item $kernel->set_TYPE ($index, $value) |
1999 | =item $kernel->set_TYPE ($index, $value) |
1512 | |
2000 | |
|
|
2001 | =item $kernel->set_char ($index, $value) |
|
|
2002 | |
|
|
2003 | =item $kernel->set_uchar ($index, $value) |
|
|
2004 | |
|
|
2005 | =item $kernel->set_short ($index, $value) |
|
|
2006 | |
|
|
2007 | =item $kernel->set_ushort ($index, $value) |
|
|
2008 | |
|
|
2009 | =item $kernel->set_int ($index, $value) |
|
|
2010 | |
|
|
2011 | =item $kernel->set_uint ($index, $value) |
|
|
2012 | |
|
|
2013 | =item $kernel->set_long ($index, $value) |
|
|
2014 | |
|
|
2015 | =item $kernel->set_ulong ($index, $value) |
|
|
2016 | |
|
|
2017 | =item $kernel->set_half ($index, $value) |
|
|
2018 | |
|
|
2019 | =item $kernel->set_float ($index, $value) |
|
|
2020 | |
|
|
2021 | =item $kernel->set_double ($index, $value) |
|
|
2022 | |
|
|
2023 | =item $kernel->set_memory ($index, $value) |
|
|
2024 | |
|
|
2025 | =item $kernel->set_buffer ($index, $value) |
|
|
2026 | |
|
|
2027 | =item $kernel->set_image ($index, $value) |
|
|
2028 | |
|
|
2029 | =item $kernel->set_sampler ($index, $value) |
|
|
2030 | |
|
|
2031 | =item $kernel->set_local ($index, $value) |
|
|
2032 | |
|
|
2033 | =item $kernel->set_event ($index, $value) |
|
|
2034 | |
1513 | This is a family of methods to set the kernel argument with the number C<$index> to the give C<$value>. |
2035 | This is a family of methods to set the kernel argument with the number |
1514 | |
2036 | C<$index> to the give C<$value>. |
1515 | TYPE is one of C<char>, C<uchar>, C<short>, C<ushort>, C<int>, C<uint>, |
|
|
1516 | C<long>, C<ulong>, C<half>, C<float>, C<double>, C<memory>, C<buffer>, |
|
|
1517 | C<image2d>, C<image3d>, C<sampler>, C<local> or C<event>. |
|
|
1518 | |
2037 | |
1519 | Chars and integers (including the half type) are specified as integers, |
2038 | Chars and integers (including the half type) are specified as integers, |
1520 | float and double as floating point values, memory/buffer/image2d/image3d |
2039 | float and double as floating point values, memory/buffer/image must be |
1521 | must be an object of that type or C<undef>, local-memory arguments are |
2040 | an object of that type or C<undef>, local-memory arguments are set by |
1522 | set by specifying the size, and sampler and event must be objects of that |
2041 | specifying the size, and sampler and event must be objects of that type. |
1523 | type. |
2042 | |
|
|
2043 | Note that C<set_memory> works for all memory objects (all types of buffers |
|
|
2044 | and images) - the main purpose of the more specific C<set_TYPE> functions |
|
|
2045 | is type checking. |
1524 | |
2046 | |
1525 | Setting an argument for a kernel does NOT keep a reference to the object - |
2047 | Setting an argument for a kernel does NOT keep a reference to the object - |
1526 | for example, if you set an argument to some image object, free the image, |
2048 | for example, if you set an argument to some image object, free the image, |
1527 | and call the kernel, you will run into undefined behaviour. |
2049 | and call the kernel, you will run into undefined behaviour. |
1528 | |
2050 | |
… | |
… | |
1541 | |
2063 | |
1542 | Waits for the event to complete. |
2064 | Waits for the event to complete. |
1543 | |
2065 | |
1544 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clWaitForEvents.html> |
2066 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clWaitForEvents.html> |
1545 | |
2067 | |
|
|
2068 | =item $ev->cb ($exec_callback_type, $callback->($event, $event_command_exec_status)) |
|
|
2069 | |
|
|
2070 | Adds a callback to the callback stack for the given event type. There is |
|
|
2071 | no way to remove a callback again. |
|
|
2072 | |
|
|
2073 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clSetEventCallback.html> |
|
|
2074 | |
1546 | =item $packed_value = $ev->info ($name) |
2075 | =item $packed_value = $ev->info ($name) |
1547 | |
2076 | |
1548 | See C<< $platform->info >> for details. |
2077 | See C<< $platform->info >> for details. |
1549 | |
2078 | |
1550 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetEventInfo.html> |
2079 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetEventInfo.html> |
1551 | |
2080 | |
1552 | =for gengetinfo begin event |
2081 | =for gengetinfo begin event |
1553 | |
2082 | |
1554 | =item $queue = $event->command_queue |
2083 | =item $queue = $event->command_queue |
1555 | |
2084 | |
1556 | Calls C<clGetEventInfo> with C<CL_EVENT_COMMAND_QUEUE> and returns the result. |
2085 | Calls C<clGetEventInfo> with C<OpenCL::EVENT_COMMAND_QUEUE> and returns the result. |
1557 | |
2086 | |
1558 | =item $command_type = $event->command_type |
2087 | =item $command_type = $event->command_type |
1559 | |
2088 | |
1560 | Calls C<clGetEventInfo> with C<CL_EVENT_COMMAND_TYPE> and returns the result. |
2089 | Calls C<clGetEventInfo> with C<OpenCL::EVENT_COMMAND_TYPE> and returns the result. |
1561 | |
2090 | |
1562 | =item $uint = $event->reference_count |
2091 | =item $uint = $event->reference_count |
1563 | |
2092 | |
1564 | Calls C<clGetEventInfo> with C<CL_EVENT_REFERENCE_COUNT> and returns the result. |
2093 | Calls C<clGetEventInfo> with C<OpenCL::EVENT_REFERENCE_COUNT> and returns the result. |
1565 | |
2094 | |
1566 | =item $uint = $event->command_execution_status |
2095 | =item $uint = $event->command_execution_status |
1567 | |
2096 | |
1568 | Calls C<clGetEventInfo> with C<CL_EVENT_COMMAND_EXECUTION_STATUS> and returns the result. |
2097 | Calls C<clGetEventInfo> with C<OpenCL::EVENT_COMMAND_EXECUTION_STATUS> and returns the result. |
1569 | |
2098 | |
1570 | =item $ctx = $event->context |
2099 | =item $ctx = $event->context |
1571 | |
2100 | |
1572 | Calls C<clGetEventInfo> with C<CL_EVENT_CONTEXT> and returns the result. |
2101 | Calls C<clGetEventInfo> with C<OpenCL::EVENT_CONTEXT> and returns the result. |
1573 | |
2102 | |
1574 | =for gengetinfo end event |
2103 | =for gengetinfo end event |
1575 | |
2104 | |
1576 | =item $packed_value = $ev->profiling_info ($name) |
2105 | =item $packed_value = $ev->profiling_info ($name) |
1577 | |
2106 | |
… | |
… | |
1584 | |
2113 | |
1585 | =for gengetinfo begin profiling |
2114 | =for gengetinfo begin profiling |
1586 | |
2115 | |
1587 | =item $ulong = $event->profiling_command_queued |
2116 | =item $ulong = $event->profiling_command_queued |
1588 | |
2117 | |
1589 | Calls C<clGetEventProfilingInfo> with C<CL_PROFILING_COMMAND_QUEUED> and returns the result. |
2118 | Calls C<clGetEventProfilingInfo> with C<OpenCL::PROFILING_COMMAND_QUEUED> and returns the result. |
1590 | |
2119 | |
1591 | =item $ulong = $event->profiling_command_submit |
2120 | =item $ulong = $event->profiling_command_submit |
1592 | |
2121 | |
1593 | Calls C<clGetEventProfilingInfo> with C<CL_PROFILING_COMMAND_SUBMIT> and returns the result. |
2122 | Calls C<clGetEventProfilingInfo> with C<OpenCL::PROFILING_COMMAND_SUBMIT> and returns the result. |
1594 | |
2123 | |
1595 | =item $ulong = $event->profiling_command_start |
2124 | =item $ulong = $event->profiling_command_start |
1596 | |
2125 | |
1597 | Calls C<clGetEventProfilingInfo> with C<CL_PROFILING_COMMAND_START> and returns the result. |
2126 | Calls C<clGetEventProfilingInfo> with C<OpenCL::PROFILING_COMMAND_START> and returns the result. |
1598 | |
2127 | |
1599 | =item $ulong = $event->profiling_command_end |
2128 | =item $ulong = $event->profiling_command_end |
1600 | |
2129 | |
1601 | Calls C<clGetEventProfilingInfo> with C<CL_PROFILING_COMMAND_END> and returns the result. |
2130 | Calls C<clGetEventProfilingInfo> with C<OpenCL::PROFILING_COMMAND_END> and returns the result. |
1602 | |
2131 | |
1603 | =for gengetinfo end profiling |
2132 | =for gengetinfo end profiling |
1604 | |
2133 | |
1605 | =back |
2134 | =back |
1606 | |
2135 | |
… | |
… | |
1610 | |
2139 | |
1611 | =over 4 |
2140 | =over 4 |
1612 | |
2141 | |
1613 | =item $ev->set_status ($execution_status) |
2142 | =item $ev->set_status ($execution_status) |
1614 | |
2143 | |
|
|
2144 | Sets the execution status of the user event. Can only be called once, |
|
|
2145 | either with OpenCL::COMPLETE or a negative number as status. |
|
|
2146 | |
|
|
2147 | execution_status: OpenCL::COMPLETE or a negative integer. |
|
|
2148 | |
1615 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clSetUserEventStatus.html> |
2149 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clSetUserEventStatus.html> |
1616 | |
2150 | |
1617 | =back |
2151 | =back |
|
|
2152 | |
|
|
2153 | =head2 THE OpenCL::Mapped CLASS |
|
|
2154 | |
|
|
2155 | This class represents objects mapped into host memory. They are |
|
|
2156 | represented by a blessed string scalar. The string data is the mapped |
|
|
2157 | memory area, that is, if you read or write it, then the mapped object is |
|
|
2158 | accessed directly. |
|
|
2159 | |
|
|
2160 | You must only ever use operations that modify the string in-place - for |
|
|
2161 | example, a C<substr> that doesn't change the length, or maybe a regex that |
|
|
2162 | doesn't change the length. Any other operation might cause the data to be |
|
|
2163 | copied. |
|
|
2164 | |
|
|
2165 | When the object is destroyed it will enqueue an implicit unmap operation |
|
|
2166 | on the queue that was used to create it. |
|
|
2167 | |
|
|
2168 | Keep in mind that you I<need> to unmap (or destroy) mapped objects before |
|
|
2169 | OpenCL sees the changes, even if some implementations don't need this |
|
|
2170 | sometimes. |
|
|
2171 | |
|
|
2172 | Example, replace the first two floats in the mapped buffer by 1 and 2. |
|
|
2173 | |
|
|
2174 | my $mapped = $queue->map_buffer ($buf, ... |
|
|
2175 | $mapped->event->wait; # make sure it's there |
|
|
2176 | |
|
|
2177 | # now replace first 8 bytes by new data, which is exactly 8 bytes long |
|
|
2178 | # we blindly assume device endianness to equal host endianness |
|
|
2179 | # (and of course, we assume iee 754 single precision floats :) |
|
|
2180 | substr $$mapped, 0, 8, pack "f*", 1, 2; |
|
|
2181 | |
|
|
2182 | =over 4 |
|
|
2183 | |
|
|
2184 | =item $ev = $mapped->unmap ($wait_events...) |
|
|
2185 | |
|
|
2186 | Unmaps the mapped memory object, using the queue originally used to create |
|
|
2187 | it, quite similarly to C<< $queue->unmap ($mapped, ...) >>. |
|
|
2188 | |
|
|
2189 | =item $bool = $mapped->mapped |
|
|
2190 | |
|
|
2191 | Returns whether the object is still mapped - true before an C<unmap> is |
|
|
2192 | enqueued, false afterwards. |
|
|
2193 | |
|
|
2194 | =item $ev = $mapped->event |
|
|
2195 | |
|
|
2196 | Return the event object associated with the mapped object. Initially, this |
|
|
2197 | will be the event object created when mapping the object, and after an |
|
|
2198 | unmap, this will be the event object that the unmap operation created. |
|
|
2199 | |
|
|
2200 | =item $mapped->wait |
|
|
2201 | |
|
|
2202 | Same as C<< $mapped->event->wait >> - makes sure no operations on this |
|
|
2203 | mapped object are outstanding. |
|
|
2204 | |
|
|
2205 | =item $bytes = $mapped->size |
|
|
2206 | |
|
|
2207 | Returns the size of the mapped area, in bytes. Same as C<length $$mapped>. |
|
|
2208 | |
|
|
2209 | =item $ptr = $mapped->ptr |
|
|
2210 | |
|
|
2211 | Returns the raw memory address of the mapped area. |
|
|
2212 | |
|
|
2213 | =item $mapped->set ($offset, $data) |
|
|
2214 | |
|
|
2215 | Replaces the data at the given C<$offset> in the memory area by the new |
|
|
2216 | C<$data>. This method is safer than direct manipulation of C<$mapped> |
|
|
2217 | because it does bounds-checking, but also slower. |
|
|
2218 | |
|
|
2219 | =item $data = $mapped->get ($offset, $length) |
|
|
2220 | |
|
|
2221 | Returns (without copying) a scalar representing the data at the given |
|
|
2222 | C<$offset> and C<$length> in the mapped memory area. This is the same as |
|
|
2223 | the following substr, except much slower; |
|
|
2224 | |
|
|
2225 | $data = substr $$mapped, $offset, $length |
|
|
2226 | |
|
|
2227 | =cut |
|
|
2228 | |
|
|
2229 | sub OpenCL::Mapped::get { |
|
|
2230 | substr ${$_[0]}, $_[1], $_[2] |
|
|
2231 | } |
|
|
2232 | |
|
|
2233 | =back |
|
|
2234 | |
|
|
2235 | =head2 THE OpenCL::MappedBuffer CLASS |
|
|
2236 | |
|
|
2237 | This is a subclass of OpenCL::Mapped, representing mapped buffers. |
|
|
2238 | |
|
|
2239 | =head2 THE OpenCL::MappedImage CLASS |
|
|
2240 | |
|
|
2241 | This is a subclass of OpenCL::Mapped, representing mapped images. |
|
|
2242 | |
|
|
2243 | =over 4 |
|
|
2244 | |
|
|
2245 | =item $bytes = $mapped->row_pitch |
|
|
2246 | |
|
|
2247 | =item $bytes = $mapped->slice_pitch |
|
|
2248 | |
|
|
2249 | Return the row or slice pitch of the image that has been mapped. |
|
|
2250 | |
|
|
2251 | =back |
|
|
2252 | |
1618 | |
2253 | |
1619 | =cut |
2254 | =cut |
1620 | |
2255 | |
1621 | 1; |
2256 | 1; |
1622 | |
2257 | |