… | |
… | |
28 | specific device ("compiling and linking"), also binary programs. For each |
28 | specific device ("compiling and linking"), also binary programs. For each |
29 | kernel function in a program you can then create an OpenCL::Kernel object |
29 | kernel function in a program you can then create an OpenCL::Kernel object |
30 | which represents basically a function call with argument values. |
30 | which represents basically a function call with argument values. |
31 | |
31 | |
32 | OpenCL::Memory objects of various flavours: OpenCL::Buffer objects (flat |
32 | OpenCL::Memory objects of various flavours: OpenCL::Buffer objects (flat |
33 | memory areas, think arrays or structs) and OpenCL::Image objects (think 2d |
33 | memory areas, think arrays or structs) and OpenCL::Image objects (think 2D |
34 | or 3d array) for bulk data and input and output for kernels. |
34 | or 3D array) for bulk data and input and output for kernels. |
35 | |
35 | |
36 | OpenCL::Sampler objects, which are kind of like texture filter modes in |
36 | OpenCL::Sampler objects, which are kind of like texture filter modes in |
37 | OpenGL. |
37 | OpenGL. |
38 | |
38 | |
39 | OpenCL::Queue objects - command queues, which allow you to submit memory |
39 | OpenCL::Queue objects - command queues, which allow you to submit memory |
… | |
… | |
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. |
… | |
… | |
157 | $id = get_global_id (0); |
161 | $id = get_global_id (0); |
158 | output [id] = input [id] * input [id]; |
162 | output [id] = input [id] * input [id]; |
159 | } |
163 | } |
160 | '; |
164 | '; |
161 | |
165 | |
162 | my $prog = $ctx->program_with_source ($src); |
166 | my $prog = $ctx->build_program ($src); |
163 | |
|
|
164 | # build croaks on compile errors, so catch it and print the compile errors |
|
|
165 | eval { $prog->build ($dev, "-cl-fast-relaxed-math"); 1 } |
|
|
166 | or die $prog->build_log; |
|
|
167 | |
|
|
168 | my $kernel = $prog->kernel ("squareit"); |
167 | my $kernel = $prog->kernel ("squareit"); |
169 | |
168 | |
170 | =head2 Create some input and output float buffers, then call the |
169 | =head2 Create some input and output float buffers, then call the |
171 | 'squareit' kernel on them. |
170 | 'squareit' kernel on them. |
172 | |
171 | |
… | |
… | |
176 | # set buffer |
175 | # set buffer |
177 | $kernel->set_buffer (0, $input); |
176 | $kernel->set_buffer (0, $input); |
178 | $kernel->set_buffer (1, $output); |
177 | $kernel->set_buffer (1, $output); |
179 | |
178 | |
180 | # execute it for all 4 numbers |
179 | # execute it for all 4 numbers |
181 | $queue->enqueue_nd_range_kernel ($kernel, undef, [4], undef); |
180 | $queue->nd_range_kernel ($kernel, undef, [4], undef); |
182 | |
181 | |
183 | # enqueue a synchronous read |
182 | # enqueue a synchronous read |
184 | $queue->enqueue_read_buffer ($output, 1, 0, OpenCL::SIZEOF_FLOAT * 4, my $data); |
183 | $queue->read_buffer ($output, 1, 0, OpenCL::SIZEOF_FLOAT * 4, my $data); |
185 | |
184 | |
186 | # print the results: |
185 | # print the results: |
187 | printf "%s\n", join ", ", unpack "f*", $data; |
186 | printf "%s\n", join ", ", unpack "f*", $data; |
188 | |
187 | |
189 | =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, |
190 | showing off barriers. |
189 | showing off barriers. |
191 | |
190 | |
192 | # execute it for all 4 numbers |
191 | # execute it for all 4 numbers |
193 | $queue->enqueue_nd_range_kernel ($kernel, undef, [4], undef); |
192 | $queue->nd_range_kernel ($kernel, undef, [4], undef); |
194 | |
193 | |
195 | # enqueue a barrier to ensure in-order execution |
194 | # enqueue a barrier to ensure in-order execution |
196 | $queue->enqueue_barrier; |
195 | $queue->barrier; |
197 | |
196 | |
198 | # enqueue an async read |
197 | # enqueue an async read |
199 | $queue->enqueue_read_buffer ($output, 0, 0, OpenCL::SIZEOF_FLOAT * 4, my $data); |
198 | $queue->read_buffer ($output, 0, 0, OpenCL::SIZEOF_FLOAT * 4, my $data); |
200 | |
199 | |
201 | # wait for all requests to finish |
200 | # wait for all requests to finish |
202 | $queue->finish; |
201 | $queue->finish; |
203 | |
202 | |
204 | =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, |
205 | showing off event objects and wait lists. |
204 | showing off event objects and wait lists. |
206 | |
205 | |
207 | # execute it for all 4 numbers |
206 | # execute it for all 4 numbers |
208 | my $ev = $queue->enqueue_nd_range_kernel ($kernel, undef, [4], undef); |
207 | my $ev = $queue->nd_range_kernel ($kernel, undef, [4], undef); |
209 | |
208 | |
210 | # enqueue an async read |
209 | # enqueue an async read |
211 | $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); |
212 | |
211 | |
213 | # wait for the last event to complete |
212 | # wait for the last event to complete |
214 | $ev->wait; |
213 | $ev->wait; |
215 | |
214 | |
216 | =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 |
217 | set tunnel effect. |
216 | set flight effect. |
218 | |
217 | |
219 | This is quite a long example to get you going. |
218 | This is quite a long example to get you going - you can also download it |
|
|
219 | from L<http://cvs.schmorp.de/OpenCL/examples/juliaflight>. |
220 | |
220 | |
221 | use OpenGL ":all"; |
221 | use OpenGL ":all"; |
222 | use OpenCL; |
222 | use OpenCL; |
223 | |
223 | |
|
|
224 | my $S = $ARGV[0] || 256; # window/texture size, smaller is faster |
|
|
225 | |
224 | # open a window and create a gl texture |
226 | # open a window and create a gl texture |
225 | OpenGL::glpOpenWindow width => 256, height => 256; |
227 | OpenGL::glpOpenWindow width => $S, height => $S; |
226 | my $texid = glGenTextures_p 1; |
228 | my $texid = glGenTextures_p 1; |
227 | glBindTexture GL_TEXTURE_2D, $texid; |
229 | glBindTexture GL_TEXTURE_2D, $texid; |
228 | 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; |
229 | |
231 | |
230 | # 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 |
231 | my $platform; |
233 | my $platform; |
232 | my $dev; |
234 | my $dev; |
233 | my $ctx; |
235 | my $ctx; |
234 | |
236 | |
|
|
237 | sub get_context { |
235 | for (OpenCL::platforms) { |
238 | for (OpenCL::platforms) { |
236 | $platform = $_; |
239 | $platform = $_; |
237 | for ($platform->devices) { |
240 | for ($platform->devices) { |
238 | $dev = $_; |
241 | $dev = $_; |
239 | $ctx = $platform->context ([OpenCL::GLX_DISPLAY_KHR, undef, OpenCL::GL_CONTEXT_KHR, undef], [$dev]) |
242 | $ctx = eval { $platform->context ([OpenCL::GLX_DISPLAY_KHR, undef, OpenCL::GL_CONTEXT_KHR, undef], [$dev]) } |
240 | and last; |
243 | and return; |
|
|
244 | } |
241 | } |
245 | } |
|
|
246 | |
|
|
247 | die "cannot find suitable OpenCL device\n"; |
242 | } |
248 | } |
243 | |
249 | |
244 | $ctx |
250 | get_context; |
245 | or die "cannot find suitable OpenCL device\n"; |
|
|
246 | |
251 | |
247 | my $queue = $ctx->queue ($dev); |
252 | my $queue = $ctx->queue ($dev); |
248 | |
253 | |
249 | # now attach an opencl image2d object to the opengl texture |
254 | # now attach an opencl image2d object to the opengl texture |
250 | my $tex = $ctx->gl_texture2d (OpenCL::MEM_WRITE_ONLY, GL_TEXTURE_2D, 0, $texid); |
255 | my $tex = $ctx->gl_texture2d (OpenCL::MEM_WRITE_ONLY, GL_TEXTURE_2D, 0, $texid); |
… | |
… | |
252 | # now the boring opencl code |
257 | # now the boring opencl code |
253 | my $src = <<EOF; |
258 | my $src = <<EOF; |
254 | kernel void |
259 | kernel void |
255 | juliatunnel (write_only image2d_t img, float time) |
260 | juliatunnel (write_only image2d_t img, float time) |
256 | { |
261 | { |
257 | float2 p = (float2)(get_global_id (0), get_global_id (1)) / 256.f * 2.f - 1.f; |
262 | int2 xy = (int2)(get_global_id (0), get_global_id (1)); |
|
|
263 | float2 p = convert_float2 (xy) / $S.f * 2.f - 1.f; |
258 | |
264 | |
259 | float2 m = (float2)(1.f, p.y) / fabs (p.x); |
265 | float2 m = (float2)(1.f, p.y) / fabs (p.x); // tunnel |
260 | m.x = fabs (fmod (m.x + time * 0.05f, 4.f)) - 2.f; |
266 | m.x = fabs (fmod (m.x + time * 0.05f, 4.f) - 2.f); |
261 | |
267 | |
262 | float2 z = m; |
268 | float2 z = m; |
263 | float2 c = (float2)(sin (time * 0.05005), cos (time * 0.06001)); |
269 | float2 c = (float2)(sin (time * 0.01133f), cos (time * 0.02521f)); |
264 | |
270 | |
265 | for (int i = 0; i < 25 && dot (z, z) < 4.f; ++i) |
271 | for (int i = 0; i < 25 && dot (z, z) < 4.f; ++i) // standard julia |
266 | z = (float2)(z.x * z.x - z.y * z.y, 2.f * z.x * z.y) + c; |
272 | z = (float2)(z.x * z.x - z.y * z.y, 2.f * z.x * z.y) + c; |
267 | |
273 | |
268 | float3 colour = (float3)(z.x, z.y, z.x * z.y); |
274 | float3 colour = (float3)(z.x, z.y, atan2 (z.y, z.x)); |
269 | write_imagef (img, (int2)(get_global_id (0), get_global_id (1)), (float4)(colour * p.x * p.x, 1.)); |
275 | write_imagef (img, xy, (float4)(colour * p.x * p.x, 1.)); |
270 | } |
276 | } |
271 | EOF |
277 | EOF |
|
|
278 | |
272 | my $prog = $ctx->program_with_source ($src); |
279 | my $prog = $ctx->build_program ($src); |
273 | eval { $prog->build ($dev); 1 } |
|
|
274 | or die $prog->build_log ($dev); |
|
|
275 | |
|
|
276 | my $kernel = $prog->kernel ("juliatunnel"); |
280 | my $kernel = $prog->kernel ("juliatunnel"); |
277 | |
281 | |
278 | # program compiled, kernel ready, now draw and loop |
282 | # program compiled, kernel ready, now draw and loop |
279 | |
283 | |
280 | for (my $time; ; ++$time) { |
284 | for (my $time; ; ++$time) { |
281 | # acquire objects from opengl |
285 | # acquire objects from opengl |
282 | $queue->enqueue_acquire_gl_objects ([$tex]); |
286 | $queue->acquire_gl_objects ([$tex]); |
283 | |
287 | |
284 | # configure and run our kernel |
288 | # configure and run our kernel |
285 | $kernel->set_image2d (0, $tex); |
289 | $kernel->setf ("mf", $tex, $time*2); # mf = memory object, float |
286 | $kernel->set_float (1, $time); |
|
|
287 | $queue->enqueue_nd_range_kernel ($kernel, undef, [256, 256], undef); |
290 | $queue->nd_range_kernel ($kernel, undef, [$S, $S], undef); |
288 | |
291 | |
289 | # release objects to opengl again |
292 | # release objects to opengl again |
290 | $queue->enqueue_release_gl_objects ([$tex]); |
293 | $queue->release_gl_objects ([$tex]); |
291 | |
294 | |
292 | # wait |
295 | # wait |
293 | $queue->finish; |
296 | $queue->finish; |
294 | |
297 | |
295 | # now draw the texture, the defaults should be all right |
298 | # now draw the texture, the defaults should be all right |
… | |
… | |
306 | glXSwapBuffers; |
309 | glXSwapBuffers; |
307 | |
310 | |
308 | select undef, undef, undef, 1/60; |
311 | select undef, undef, undef, 1/60; |
309 | } |
312 | } |
310 | |
313 | |
|
|
314 | =head2 How to modify the previous example to not rely on GL sharing. |
|
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315 | |
|
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316 | For those poor souls with only a sucky CPU OpenCL implementation, you |
|
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317 | currently have to read the image into some perl scalar, and then modify a |
|
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318 | texture or use glDrawPixels or so). |
|
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319 | |
|
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320 | First, when you don't need gl sharing, you can create the context much simpler: |
|
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321 | |
|
|
322 | $ctx = $platform->context (undef, [$dev]) |
|
|
323 | |
|
|
324 | To use a texture, you would modify the above example by creating an |
|
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325 | OpenCL::Image manually instead of deriving it from a texture: |
|
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326 | |
|
|
327 | my $tex = $ctx->image2d (OpenCL::MEM_WRITE_ONLY, OpenCL::RGBA, OpenCL::UNORM_INT8, $S, $S); |
|
|
328 | |
|
|
329 | And in the draw loop, intead of acquire_gl_objects/release_gl_objects, you |
|
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330 | would read the image2d after the kernel has written it: |
|
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331 | |
|
|
332 | $queue->read_image ($tex, 0, 0, 0, 0, $S, $S, 1, 0, 0, my $data); |
|
|
333 | |
|
|
334 | And then you would upload the pixel data to the texture (or use glDrawPixels): |
|
|
335 | |
|
|
336 | glTexSubImage2D_s GL_TEXTURE_2D, 0, 0, 0, $S, $S, GL_RGBA, GL_UNSIGNED_BYTE, $data; |
|
|
337 | |
|
|
338 | The fully modified example can be found at |
|
|
339 | L<http://cvs.schmorp.de/OpenCL/examples/juliaflight-nosharing>. |
|
|
340 | |
|
|
341 | =head2 Julia sets look soooo 80ies. |
|
|
342 | |
|
|
343 | Then colour them differently, e.g. using orbit traps! Replace the loop and |
|
|
344 | colour calculation from the previous examples by this: |
|
|
345 | |
|
|
346 | float2 dm = (float2)(1.f, 1.f); |
|
|
347 | |
|
|
348 | for (int i = 0; i < 25; ++i) |
|
|
349 | { |
|
|
350 | z = (float2)(z.x * z.x - z.y * z.y, 2.f * z.x * z.y) + c; |
|
|
351 | dm = fmin (dm, (float2)(fabs (dot (z, z) - 1.f), fabs (z.x - 1.f))); |
|
|
352 | } |
|
|
353 | |
|
|
354 | float3 colour = (float3)(dm.x * dm.y, dm.x * dm.y, dm.x); |
|
|
355 | |
|
|
356 | Also try C<-10.f> instead of C<-1.f>. |
|
|
357 | |
311 | =head1 DOCUMENTATION |
358 | =head1 DOCUMENTATION |
312 | |
359 | |
313 | =head2 BASIC CONVENTIONS |
360 | =head2 BASIC CONVENTIONS |
314 | |
361 | |
315 | This is not a one-to-one C-style translation of OpenCL to Perl - instead |
362 | This is not a one-to-one C-style translation of OpenCL to Perl - instead |
… | |
… | |
336 | =item * Structures are often specified by flattening out their components |
383 | =item * Structures are often specified by flattening out their components |
337 | as with short vectors, and returned as arrayrefs. |
384 | as with short vectors, and returned as arrayrefs. |
338 | |
385 | |
339 | =item * When enqueuing commands, the wait list is specified by adding |
386 | =item * When enqueuing commands, the wait list is specified by adding |
340 | extra arguments to the function - anywhere a C<$wait_events...> argument |
387 | extra arguments to the function - anywhere a C<$wait_events...> argument |
341 | is documented this can be any number of event objects. |
388 | is documented this can be any number of event objects. As an extsnion |
|
|
389 | implemented by this module, C<undef> values will be ignored in the event |
|
|
390 | list. |
342 | |
391 | |
343 | =item * When enqueuing commands, if the enqueue method is called in void |
392 | =item * When enqueuing commands, if the enqueue method is called in void |
344 | context, no event is created. In all other contexts an event is returned |
393 | context, no event is created. In all other contexts an event is returned |
345 | by the method. |
394 | by the method. |
346 | |
395 | |
347 | =item * This module expects all functions to return C<CL_SUCCESS>. If any |
396 | =item * This module expects all functions to return C<OpenCL::SUCCESS>. If any |
348 | other status is returned the function will throw an exception, so you |
397 | other status is returned the function will throw an exception, so you |
349 | don't normally have to to any error checking. |
398 | don't normally have to to any error checking. |
350 | |
399 | |
351 | =back |
400 | =back |
|
|
401 | |
|
|
402 | =head2 CONSTANTS |
|
|
403 | |
|
|
404 | All C<CL_xxx> constants that this module supports are always available |
|
|
405 | in the C<OpenCL> namespace as C<OpenCL::xxx> (i.e. without the C<CL_> |
|
|
406 | prefix). Constants which are not defined in the header files used during |
|
|
407 | compilation, or otherwise are not available, will have the value C<0> (in |
|
|
408 | some cases, this will make them indistinguishable from real constants, |
|
|
409 | sorry). |
|
|
410 | |
|
|
411 | The latest version of this module knows and exports the constants |
|
|
412 | listed in L<http://cvs.schmorp.de/OpenCL/constiv.h>. |
|
|
413 | |
|
|
414 | =head2 OPENCL 1.1 VS. OPENCL 1.2 |
|
|
415 | |
|
|
416 | This module supports both OpenCL version 1.1 and 1.2, although the OpenCL |
|
|
417 | 1.2 interface hasn't been tested much for lack of availability of an |
|
|
418 | actual implementation. |
|
|
419 | |
|
|
420 | Every function or method in this manual page that interfaces to a |
|
|
421 | particular OpenCL function has a link to the its C manual page. |
|
|
422 | |
|
|
423 | If the link contains a F<1.1>, then this function is an OpenCL 1.1 |
|
|
424 | function. Most but not all also exist in OpenCL 1.2, and this module |
|
|
425 | tries to emulate the missing ones for you, when told to do so at |
|
|
426 | compiletime. You can check whether a function was removed in OpenCL 1.2 by |
|
|
427 | replacing the F<1.1> component in the URL by F<1.2>. |
|
|
428 | |
|
|
429 | If the link contains a F<1.2>, then this is a OpenCL 1.2-only |
|
|
430 | function. Even if the module was compiled with OpenCL 1.2 header files |
|
|
431 | and has an 1.2 OpenCL library, calling such a function on a platform that |
|
|
432 | doesn't implement 1.2 causes undefined behaviour, usually a crash (But |
|
|
433 | this is not guaranteed). |
|
|
434 | |
|
|
435 | You can find out whether this module was compiled to prefer 1.1 |
|
|
436 | functionality by ooking at C<OpenCL::PREFER_1_1> - if it is true, then |
|
|
437 | 1.1 functions generally are implemented using 1.1 OpenCL functions. If it |
|
|
438 | is false, then 1.1 functions missing from 1.2 are emulated by calling 1.2 |
|
|
439 | fucntions. |
|
|
440 | |
|
|
441 | This is a somewhat sorry state of affairs, but the Khronos group choose to |
|
|
442 | make every release of OpenCL source and binary incompatible with previous |
|
|
443 | releases. |
352 | |
444 | |
353 | =head2 PERL AND OPENCL TYPES |
445 | =head2 PERL AND OPENCL TYPES |
354 | |
446 | |
355 | This handy(?) table lists OpenCL types and their perl, PDL and pack/unpack |
447 | This handy(?) table lists OpenCL types and their perl, PDL and pack/unpack |
356 | format equivalents: |
448 | format equivalents: |
… | |
… | |
381 | |
473 | |
382 | For this to work, the OpenGL library must be loaded, a GLX context must |
474 | For this to work, the OpenGL library must be loaded, a GLX context must |
383 | have been created and be made current, and C<dlsym> must be available and |
475 | have been created and be made current, and C<dlsym> must be available and |
384 | capable of finding the function via C<RTLD_DEFAULT>. |
476 | capable of finding the function via C<RTLD_DEFAULT>. |
385 | |
477 | |
|
|
478 | =head2 EVENT SYSTEM |
|
|
479 | |
|
|
480 | OpenCL can generate a number of (potentially) asynchronous events, for |
|
|
481 | example, after compiling a program, to signal a context-related error or, |
|
|
482 | perhaps most important, to signal completion of queued jobs (by setting |
|
|
483 | callbacks on OpenCL::Event objects). |
|
|
484 | |
|
|
485 | The OpenCL module converts all these callbacks into events - you can |
|
|
486 | still register callbacks, but they are not executed when your OpenCL |
|
|
487 | implementation calls the actual callback, but only later. Therefore, none |
|
|
488 | of the limitations of OpenCL callbacks apply to the perl implementation: |
|
|
489 | it is perfectly safe to make blocking operations from event callbacks, and |
|
|
490 | enqueued operations don't need to be flushed. |
|
|
491 | |
|
|
492 | To facilitate this, this module maintains an event queue - each |
|
|
493 | time an asynchronous event happens, it is queued, and perl will be |
|
|
494 | interrupted. This is implemented via the L<Async::Interrupt> module. In |
|
|
495 | addition, this module has L<AnyEvent> support, so it can seamlessly |
|
|
496 | integrate itself into many event loops. |
|
|
497 | |
|
|
498 | Since L<Async::Interrupt> is a bit hard to understand, here are some case examples: |
|
|
499 | |
|
|
500 | =head3 Don't use callbacks. |
|
|
501 | |
|
|
502 | When your program never uses any callbacks, then there will never be any |
|
|
503 | notifications you need to take care of, and therefore no need to worry |
|
|
504 | about all this. |
|
|
505 | |
|
|
506 | You can achieve a great deal by explicitly waiting for events, or using |
|
|
507 | barriers and flush calls. In many programs, there is no need at all to |
|
|
508 | tinker with asynchronous events. |
|
|
509 | |
|
|
510 | =head3 Use AnyEvent |
|
|
511 | |
|
|
512 | This module automatically registers a watcher that invokes all outstanding |
|
|
513 | event callbacks when AnyEvent is initialised (and block asynchronous |
|
|
514 | interruptions). Using this mode of operations is the safest and most |
|
|
515 | recommended one. |
|
|
516 | |
|
|
517 | To use this, simply use AnyEvent and this module normally, make sure you |
|
|
518 | have an event loop running: |
|
|
519 | |
|
|
520 | use Gtk2 -init; |
|
|
521 | use AnyEvent; |
|
|
522 | |
|
|
523 | # initialise AnyEvent, by creating a watcher, or: |
|
|
524 | AnyEvent::detect; |
|
|
525 | |
|
|
526 | my $e = $queue->marker; |
|
|
527 | $e->cb (sub { |
|
|
528 | warn "opencl is finished\n"; |
|
|
529 | }) |
|
|
530 | |
|
|
531 | main Gtk2; |
|
|
532 | |
|
|
533 | Note that this module will not initialise AnyEvent for you. Before |
|
|
534 | AnyEvent is initialised, the module will asynchronously interrupt perl |
|
|
535 | instead. To avoid any surprises, it's best to explicitly initialise |
|
|
536 | AnyEvent. |
|
|
537 | |
|
|
538 | You can temporarily enable asynchronous interruptions (see next paragraph) |
|
|
539 | by calling C<$OpenCL::INTERRUPT->unblock> and disable them again by |
|
|
540 | calling C<$OpenCL::INTERRUPT->block>. |
|
|
541 | |
|
|
542 | =head3 Let yourself be interrupted at any time |
|
|
543 | |
|
|
544 | This mode is the default unless AnyEvent is loaded and initialised. In |
|
|
545 | this mode, OpenCL asynchronously interrupts a running perl program. The |
|
|
546 | emphasis is on both I<asynchronously> and I<running> here. |
|
|
547 | |
|
|
548 | Asynchronously means that perl might execute your callbacks at any |
|
|
549 | time. For example, in the following code (I<THAT YOU SHOULD NOT COPY>), |
|
|
550 | the C<until> loop following the marker call will be interrupted by the |
|
|
551 | callback: |
|
|
552 | |
|
|
553 | my $e = $queue->marker; |
|
|
554 | my $flag; |
|
|
555 | $e->cb (sub { $flag = 1 }); |
|
|
556 | 1 until $flag; |
|
|
557 | # $flag is now 1 |
|
|
558 | |
|
|
559 | The reason why you shouldn't blindly copy the above code is that |
|
|
560 | busy waiting is a really really bad thing, and really really bad for |
|
|
561 | performance. |
|
|
562 | |
|
|
563 | While at first this asynchronous business might look exciting, it can be |
|
|
564 | really hard, because you need to be prepared for the callback code to be |
|
|
565 | executed at any time, which limits the amount of things the callback code |
|
|
566 | can do safely. |
|
|
567 | |
|
|
568 | This can be mitigated somewhat by using C<< |
|
|
569 | $OpenCL::INTERRUPT->scope_block >> (see the L<Async::Interrupt> |
|
|
570 | documentation for details). |
|
|
571 | |
|
|
572 | The other problem is that your program must be actively I<running> to be |
|
|
573 | interrupted. When you calculate stuff, your program is running. When you |
|
|
574 | hang in some C functions or other block execution (by calling C<sleep>, |
|
|
575 | C<select>, running an event loop and so on), your program is waiting, not |
|
|
576 | running. |
|
|
577 | |
|
|
578 | One way around that would be to attach a read watcher to your event loop, |
|
|
579 | listening for events on C<< $OpenCL::INTERRUPT->pipe_fileno >>, using a |
|
|
580 | dummy callback (C<sub { }>) to temporarily execute some perl code. |
|
|
581 | |
|
|
582 | That is then awfully close to using the built-in AnyEvent support above, |
|
|
583 | though, so consider that one instead. |
|
|
584 | |
|
|
585 | =head3 Be creative |
|
|
586 | |
|
|
587 | OpenCL exports the L<Async::Interrupt> object it uses in the global |
|
|
588 | variable C<$OpenCL::INTERRUPT>. You can configure it in any way you like. |
|
|
589 | |
|
|
590 | So if you want to feel like a real pro, err, wait, if you feel no risk |
|
|
591 | menas no fun, you can experiment by implementing your own mode of |
|
|
592 | operations. |
|
|
593 | |
|
|
594 | =cut |
|
|
595 | |
|
|
596 | package OpenCL; |
|
|
597 | |
|
|
598 | use common::sense; |
|
|
599 | use Carp (); |
|
|
600 | use Async::Interrupt (); |
|
|
601 | |
|
|
602 | our $POLL_FUNC; # set by XS |
|
|
603 | |
|
|
604 | BEGIN { |
|
|
605 | our $VERSION = '1.01'; |
|
|
606 | |
|
|
607 | require XSLoader; |
|
|
608 | XSLoader::load (__PACKAGE__, $VERSION); |
|
|
609 | |
|
|
610 | @OpenCL::Platform::ISA = |
|
|
611 | @OpenCL::Device::ISA = |
|
|
612 | @OpenCL::Context::ISA = |
|
|
613 | @OpenCL::Queue::ISA = |
|
|
614 | @OpenCL::Memory::ISA = |
|
|
615 | @OpenCL::Sampler::ISA = |
|
|
616 | @OpenCL::Program::ISA = |
|
|
617 | @OpenCL::Kernel::ISA = |
|
|
618 | @OpenCL::Event::ISA = OpenCL::Object::; |
|
|
619 | |
|
|
620 | @OpenCL::SubDevice::ISA = OpenCL::Device::; |
|
|
621 | |
|
|
622 | @OpenCL::Buffer::ISA = |
|
|
623 | @OpenCL::Image::ISA = OpenCL::Memory::; |
|
|
624 | |
|
|
625 | @OpenCL::BufferObj::ISA = OpenCL::Buffer::; |
|
|
626 | |
|
|
627 | @OpenCL::Image2D::ISA = |
|
|
628 | @OpenCL::Image3D::ISA = |
|
|
629 | @OpenCL::Image2DArray::ISA = |
|
|
630 | @OpenCL::Image1D::ISA = |
|
|
631 | @OpenCL::Image1DArray::ISA = |
|
|
632 | @OpenCL::Image1DBuffer::ISA = OpenCL::Image::; |
|
|
633 | |
|
|
634 | @OpenCL::UserEvent::ISA = OpenCL::Event::; |
|
|
635 | |
|
|
636 | @OpenCL::MappedBuffer::ISA = |
|
|
637 | @OpenCL::MappedImage::ISA = OpenCL::Mapped::; |
|
|
638 | } |
|
|
639 | |
386 | =head2 THE OpenCL PACKAGE |
640 | =head2 THE OpenCL PACKAGE |
387 | |
641 | |
388 | =over 4 |
642 | =over 4 |
389 | |
643 | |
390 | =item $int = OpenCL::errno |
644 | =item $int = OpenCL::errno |
391 | |
645 | |
392 | The last error returned by a function - it's only valid after an error occured |
646 | The last error returned by a function - it's only valid after an error occured |
393 | and before calling another OpenCL function. |
647 | and before calling another OpenCL function. |
394 | |
648 | |
395 | =item $str = OpenCL::err2str $errval |
649 | =item $str = OpenCL::err2str [$errval] |
396 | |
650 | |
397 | Comverts an error value into a human readable string. |
651 | Converts an error value into a human readable string. If no error value is |
|
|
652 | given, then the last error will be used (as returned by OpenCL::errno). |
|
|
653 | |
|
|
654 | The latest version of this module knows the error constants |
|
|
655 | listed in L<http://cvs.schmorp.de/OpenCL/errstr.h>. |
398 | |
656 | |
399 | =item $str = OpenCL::enum2str $enum |
657 | =item $str = OpenCL::enum2str $enum |
400 | |
658 | |
401 | Converts most enum values (of parameter names, image format constants, |
659 | Converts most enum values (of parameter names, image format constants, |
402 | object types, addressing and filter modes, command types etc.) into a |
660 | object types, addressing and filter modes, command types etc.) into a |
403 | human readable string. When confronted with some random integer it can be |
661 | human readable string. When confronted with some random integer it can be |
404 | very helpful to pass it through this function to maybe get some readable |
662 | very helpful to pass it through this function to maybe get some readable |
405 | string out of it. |
663 | string out of it. |
406 | |
664 | |
|
|
665 | The latest version of this module knows the enumaration constants |
|
|
666 | listed in L<http://cvs.schmorp.de/OpenCL/enumstr.h>. |
|
|
667 | |
407 | =item @platforms = OpenCL::platforms |
668 | =item @platforms = OpenCL::platforms |
408 | |
669 | |
409 | Returns all available OpenCL::Platform objects. |
670 | Returns all available OpenCL::Platform objects. |
410 | |
671 | |
411 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetPlatformIDs.html> |
672 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetPlatformIDs.html> |
412 | |
673 | |
413 | =item $ctx = OpenCL::context_from_type $properties, $type = OpenCL::DEVICE_TYPE_DEFAULT, $notify = undef |
674 | =item $ctx = OpenCL::context_from_type $properties, $type = OpenCL::DEVICE_TYPE_DEFAULT, $callback->($err, $pvt) = $print_stderr |
414 | |
675 | |
415 | Tries to create a context from a default device and platform - never worked for me. |
676 | Tries to create a context from a default device and platform type - never worked for me. |
|
|
677 | Consider using C<< $platform->context_from_type >> instead. |
|
|
678 | |
|
|
679 | type: OpenCL::DEVICE_TYPE_DEFAULT, OpenCL::DEVICE_TYPE_CPU, OpenCL::DEVICE_TYPE_GPU, |
|
|
680 | OpenCL::DEVICE_TYPE_ACCELERATOR, OpenCL::DEVICE_TYPE_CUSTOM, OpenCL::DEVICE_TYPE_ALL. |
416 | |
681 | |
417 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateContextFromType.html> |
682 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateContextFromType.html> |
418 | |
683 | |
|
|
684 | =item $ctx = OpenCL::context $properties, \@devices, $callback->($err, $pvt) = $print_stderr) |
|
|
685 | |
|
|
686 | Create a new OpenCL::Context object using the given device object(s). |
|
|
687 | Consider using C<< $platform->context >> instead. |
|
|
688 | |
|
|
689 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateContext.html> |
|
|
690 | |
419 | =item OpenCL::wait_for_events $wait_events... |
691 | =item OpenCL::wait_for_events $wait_events... |
420 | |
692 | |
421 | Waits for all events to complete. |
693 | Waits for all events to complete. |
422 | |
694 | |
423 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clWaitForEvents.html> |
695 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clWaitForEvents.html> |
424 | |
696 | |
|
|
697 | =item OpenCL::poll |
|
|
698 | |
|
|
699 | Checks if there are any outstanding events (see L<EVENT SYSTEM>) and |
|
|
700 | invokes their callbacks. |
|
|
701 | |
|
|
702 | =item $OpenCL::INTERRUPT |
|
|
703 | |
|
|
704 | The L<Async::Interrupt> object used to signal asynchronous events (see |
|
|
705 | L<EVENT SYSTEM>). |
|
|
706 | |
|
|
707 | =cut |
|
|
708 | |
|
|
709 | our $INTERRUPT = new Async::Interrupt c_cb => [$POLL_FUNC, 0]; |
|
|
710 | |
|
|
711 | &_eq_initialise ($INTERRUPT->signal_func); |
|
|
712 | |
|
|
713 | =item $OpenCL::WATCHER |
|
|
714 | |
|
|
715 | The L<AnyEvent> watcher object used to watch for asynchronous events (see |
|
|
716 | L<EVENT SYSTEM>). This variable is C<undef> until L<AnyEvent> has been |
|
|
717 | loaded I<and> initialised (e.g. by calling C<AnyEvent::detect>). |
|
|
718 | |
|
|
719 | =cut |
|
|
720 | |
|
|
721 | our $WATCHER; |
|
|
722 | |
|
|
723 | sub _init_anyevent { |
|
|
724 | $INTERRUPT->block; |
|
|
725 | $WATCHER = AE::io ($INTERRUPT->pipe_fileno, 0, sub { $INTERRUPT->handle }); |
|
|
726 | } |
|
|
727 | |
|
|
728 | if (defined $AnyEvent::MODEL) { |
|
|
729 | _init_anyevent; |
|
|
730 | } else { |
|
|
731 | push @AnyEvent::post_detect, \&_init_anyevent; |
|
|
732 | } |
|
|
733 | |
425 | =back |
734 | =back |
426 | |
735 | |
|
|
736 | =head2 THE OpenCL::Object CLASS |
|
|
737 | |
|
|
738 | This is the base class for all objects in the OpenCL module. The only |
|
|
739 | method it implements is the C<id> method, which is only useful if you want |
|
|
740 | to interface to OpenCL on the C level. |
|
|
741 | |
|
|
742 | =over 4 |
|
|
743 | |
|
|
744 | =item $iv = $obj->id |
|
|
745 | |
|
|
746 | OpenCL objects are represented by pointers or integers on the C level. If |
|
|
747 | you want to interface to an OpenCL object directly on the C level, then |
|
|
748 | you need this value, which is returned by this method. You should use an |
|
|
749 | C<IV> type in your code and cast that to the correct type. |
|
|
750 | |
|
|
751 | =cut |
|
|
752 | |
|
|
753 | sub OpenCL::Object::id { |
|
|
754 | ref $_[0] eq "SCALAR" |
|
|
755 | ? ${ $_[0] } |
|
|
756 | : $_[0][0] |
|
|
757 | } |
|
|
758 | |
|
|
759 | =back |
|
|
760 | |
427 | =head2 THE OpenCL::Platform CLASS |
761 | =head2 THE OpenCL::Platform CLASS |
428 | |
762 | |
429 | =over 4 |
763 | =over 4 |
430 | |
764 | |
431 | =item @devices = $platform->devices ($type = OpenCL::DEVICE_TYPE_ALL) |
765 | =item @devices = $platform->devices ($type = OpenCL::DEVICE_TYPE_ALL) |
432 | |
766 | |
433 | Returns a list of matching OpenCL::Device objects. |
767 | Returns a list of matching OpenCL::Device objects. |
434 | |
768 | |
435 | =item $ctx = $platform->context_from_type ($properties, $type = OpenCL::DEVICE_TYPE_DEFAULT, $notify = undef) |
769 | =item $ctx = $platform->context_from_type ($properties, $type = OpenCL::DEVICE_TYPE_DEFAULT, $callback->($err, $pvt) = $print_stderr) |
436 | |
770 | |
437 | Tries to create a context. Never worked for me, and you need devices explicitly anyway. |
771 | Tries to create a context. Never worked for me, and you need devices explicitly anyway. |
438 | |
772 | |
439 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateContextFromType.html> |
773 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateContextFromType.html> |
440 | |
774 | |
441 | =item $ctx = $platform->context ($properties = undef, @$devices, $notify = undef) |
775 | =item $ctx = $platform->context ($properties, \@devices, $callback->($err, $pvt) = $print_stderr) |
442 | |
776 | |
443 | Create a new OpenCL::Context object using the given device object(s)- a |
777 | Create a new OpenCL::Context object using the given device object(s)- a |
444 | CL_CONTEXT_PLATFORM property is supplied automatically. |
778 | OpenCL::CONTEXT_PLATFORM property is supplied automatically. |
445 | |
779 | |
446 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateContext.html> |
780 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateContext.html> |
447 | |
781 | |
448 | =item $packed_value = $platform->info ($name) |
782 | =item $packed_value = $platform->info ($name) |
449 | |
783 | |
… | |
… | |
454 | It's best to avoid this method and use one of the following convenience |
788 | It's best to avoid this method and use one of the following convenience |
455 | wrappers. |
789 | wrappers. |
456 | |
790 | |
457 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetPlatformInfo.html> |
791 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetPlatformInfo.html> |
458 | |
792 | |
|
|
793 | =item $platform->unload_compiler |
|
|
794 | |
|
|
795 | Attempts to unload the compiler for this platform, for endless |
|
|
796 | profit. Does nothing on OpenCL 1.1. |
|
|
797 | |
|
|
798 | L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clUnloadPlatformCompiler.html> |
|
|
799 | |
459 | =for gengetinfo begin platform |
800 | =for gengetinfo begin platform |
460 | |
801 | |
461 | =item $string = $platform->profile |
802 | =item $string = $platform->profile |
462 | |
803 | |
463 | Calls C<clGetPlatformInfo> with C<CL_PLATFORM_PROFILE> and returns the result. |
804 | Calls C<clGetPlatformInfo> with C<OpenCL::PLATFORM_PROFILE> and returns the result. |
464 | |
805 | |
465 | =item $string = $platform->version |
806 | =item $string = $platform->version |
466 | |
807 | |
467 | Calls C<clGetPlatformInfo> with C<CL_PLATFORM_VERSION> and returns the result. |
808 | Calls C<clGetPlatformInfo> with C<OpenCL::PLATFORM_VERSION> and returns the result. |
468 | |
809 | |
469 | =item $string = $platform->name |
810 | =item $string = $platform->name |
470 | |
811 | |
471 | Calls C<clGetPlatformInfo> with C<CL_PLATFORM_NAME> and returns the result. |
812 | Calls C<clGetPlatformInfo> with C<OpenCL::PLATFORM_NAME> and returns the result. |
472 | |
813 | |
473 | =item $string = $platform->vendor |
814 | =item $string = $platform->vendor |
474 | |
815 | |
475 | Calls C<clGetPlatformInfo> with C<CL_PLATFORM_VENDOR> and returns the result. |
816 | Calls C<clGetPlatformInfo> with C<OpenCL::PLATFORM_VENDOR> and returns the result. |
476 | |
817 | |
477 | =item $string = $platform->extensions |
818 | =item $string = $platform->extensions |
478 | |
819 | |
479 | Calls C<clGetPlatformInfo> with C<CL_PLATFORM_EXTENSIONS> and returns the result. |
820 | Calls C<clGetPlatformInfo> with C<OpenCL::PLATFORM_EXTENSIONS> and returns the result. |
480 | |
821 | |
481 | =for gengetinfo end platform |
822 | =for gengetinfo end platform |
482 | |
823 | |
483 | =back |
824 | =back |
484 | |
825 | |
… | |
… | |
488 | |
829 | |
489 | =item $packed_value = $device->info ($name) |
830 | =item $packed_value = $device->info ($name) |
490 | |
831 | |
491 | See C<< $platform->info >> for details. |
832 | See C<< $platform->info >> for details. |
492 | |
833 | |
|
|
834 | type: OpenCL::DEVICE_TYPE_DEFAULT, OpenCL::DEVICE_TYPE_CPU, |
|
|
835 | OpenCL::DEVICE_TYPE_GPU, OpenCL::DEVICE_TYPE_ACCELERATOR, |
|
|
836 | OpenCL::DEVICE_TYPE_CUSTOM, OpenCL::DEVICE_TYPE_ALL. |
|
|
837 | |
|
|
838 | fp_config: OpenCL::FP_DENORM, OpenCL::FP_INF_NAN, OpenCL::FP_ROUND_TO_NEAREST, |
|
|
839 | OpenCL::FP_ROUND_TO_ZERO, OpenCL::FP_ROUND_TO_INF, OpenCL::FP_FMA, |
|
|
840 | OpenCL::FP_SOFT_FLOAT, OpenCL::FP_CORRECTLY_ROUNDED_DIVIDE_SQRT. |
|
|
841 | |
|
|
842 | mem_cache_type: OpenCL::NONE, OpenCL::READ_ONLY_CACHE, OpenCL::READ_WRITE_CACHE. |
|
|
843 | |
|
|
844 | local_mem_type: OpenCL::LOCAL, OpenCL::GLOBAL. |
|
|
845 | |
|
|
846 | exec_capabilities: OpenCL::EXEC_KERNEL, OpenCL::EXEC_NATIVE_KERNEL. |
|
|
847 | |
|
|
848 | command_queue_properties: OpenCL::QUEUE_OUT_OF_ORDER_EXEC_MODE_ENABLE, |
|
|
849 | OpenCL::QUEUE_PROFILING_ENABLE. |
|
|
850 | |
|
|
851 | partition_properties: OpenCL::DEVICE_PARTITION_EQUALLY, |
|
|
852 | OpenCL::DEVICE_PARTITION_BY_COUNTS, OpenCL::DEVICE_PARTITION_BY_COUNTS_LIST_END, |
|
|
853 | OpenCL::DEVICE_PARTITION_BY_AFFINITY_DOMAIN. |
|
|
854 | |
|
|
855 | affinity_domain: OpenCL::DEVICE_AFFINITY_DOMAIN_NUMA, |
|
|
856 | OpenCL::DEVICE_AFFINITY_DOMAIN_L4_CACHE, OpenCL::DEVICE_AFFINITY_DOMAIN_L3_CACHE, |
|
|
857 | OpenCL::DEVICE_AFFINITY_DOMAIN_L2_CACHE, OpenCL::DEVICE_AFFINITY_DOMAIN_L1_CACHE, |
|
|
858 | OpenCL::DEVICE_AFFINITY_DOMAIN_NEXT_PARTITIONABLE. |
|
|
859 | |
493 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetDeviceInfo.html> |
860 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetDeviceInfo.html> |
494 | |
861 | |
|
|
862 | =item @devices = $device->sub_devices (\@properties) |
|
|
863 | |
|
|
864 | Creates OpencL::SubDevice objects by partitioning an existing device. |
|
|
865 | |
|
|
866 | L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clCreateSubDevices.html> |
|
|
867 | |
495 | =for gengetinfo begin device |
868 | =for gengetinfo begin device |
496 | |
869 | |
497 | =item $device_type = $device->type |
870 | =item $device_type = $device->type |
498 | |
871 | |
499 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_TYPE> and returns the result. |
872 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_TYPE> and returns the result. |
500 | |
873 | |
501 | =item $uint = $device->vendor_id |
874 | =item $uint = $device->vendor_id |
502 | |
875 | |
503 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_VENDOR_ID> and returns the result. |
876 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_VENDOR_ID> and returns the result. |
504 | |
877 | |
505 | =item $uint = $device->max_compute_units |
878 | =item $uint = $device->max_compute_units |
506 | |
879 | |
507 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_COMPUTE_UNITS> and returns the result. |
880 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MAX_COMPUTE_UNITS> and returns the result. |
508 | |
881 | |
509 | =item $uint = $device->max_work_item_dimensions |
882 | =item $uint = $device->max_work_item_dimensions |
510 | |
883 | |
511 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_WORK_ITEM_DIMENSIONS> and returns the result. |
884 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MAX_WORK_ITEM_DIMENSIONS> and returns the result. |
512 | |
885 | |
513 | =item $int = $device->max_work_group_size |
886 | =item $int = $device->max_work_group_size |
514 | |
887 | |
515 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_WORK_GROUP_SIZE> and returns the result. |
888 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MAX_WORK_GROUP_SIZE> and returns the result. |
516 | |
889 | |
517 | =item @ints = $device->max_work_item_sizes |
890 | =item @ints = $device->max_work_item_sizes |
518 | |
891 | |
519 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_WORK_ITEM_SIZES> and returns the result. |
892 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MAX_WORK_ITEM_SIZES> and returns the result. |
520 | |
893 | |
521 | =item $uint = $device->preferred_vector_width_char |
894 | =item $uint = $device->preferred_vector_width_char |
522 | |
895 | |
523 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_PREFERRED_VECTOR_WIDTH_CHAR> and returns the result. |
896 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PREFERRED_VECTOR_WIDTH_CHAR> and returns the result. |
524 | |
897 | |
525 | =item $uint = $device->preferred_vector_width_short |
898 | =item $uint = $device->preferred_vector_width_short |
526 | |
899 | |
527 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_PREFERRED_VECTOR_WIDTH_SHORT> and returns the result. |
900 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PREFERRED_VECTOR_WIDTH_SHORT> and returns the result. |
528 | |
901 | |
529 | =item $uint = $device->preferred_vector_width_int |
902 | =item $uint = $device->preferred_vector_width_int |
530 | |
903 | |
531 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_PREFERRED_VECTOR_WIDTH_INT> and returns the result. |
904 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PREFERRED_VECTOR_WIDTH_INT> and returns the result. |
532 | |
905 | |
533 | =item $uint = $device->preferred_vector_width_long |
906 | =item $uint = $device->preferred_vector_width_long |
534 | |
907 | |
535 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_PREFERRED_VECTOR_WIDTH_LONG> and returns the result. |
908 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PREFERRED_VECTOR_WIDTH_LONG> and returns the result. |
536 | |
909 | |
537 | =item $uint = $device->preferred_vector_width_float |
910 | =item $uint = $device->preferred_vector_width_float |
538 | |
911 | |
539 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_PREFERRED_VECTOR_WIDTH_FLOAT> and returns the result. |
912 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PREFERRED_VECTOR_WIDTH_FLOAT> and returns the result. |
540 | |
913 | |
541 | =item $uint = $device->preferred_vector_width_double |
914 | =item $uint = $device->preferred_vector_width_double |
542 | |
915 | |
543 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_PREFERRED_VECTOR_WIDTH_DOUBLE> and returns the result. |
916 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PREFERRED_VECTOR_WIDTH_DOUBLE> and returns the result. |
544 | |
917 | |
545 | =item $uint = $device->max_clock_frequency |
918 | =item $uint = $device->max_clock_frequency |
546 | |
919 | |
547 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_CLOCK_FREQUENCY> and returns the result. |
920 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MAX_CLOCK_FREQUENCY> and returns the result. |
548 | |
921 | |
549 | =item $bitfield = $device->address_bits |
922 | =item $bitfield = $device->address_bits |
550 | |
923 | |
551 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_ADDRESS_BITS> and returns the result. |
924 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_ADDRESS_BITS> and returns the result. |
552 | |
925 | |
553 | =item $uint = $device->max_read_image_args |
926 | =item $uint = $device->max_read_image_args |
554 | |
927 | |
555 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_READ_IMAGE_ARGS> and returns the result. |
928 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MAX_READ_IMAGE_ARGS> and returns the result. |
556 | |
929 | |
557 | =item $uint = $device->max_write_image_args |
930 | =item $uint = $device->max_write_image_args |
558 | |
931 | |
559 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_WRITE_IMAGE_ARGS> and returns the result. |
932 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MAX_WRITE_IMAGE_ARGS> and returns the result. |
560 | |
933 | |
561 | =item $ulong = $device->max_mem_alloc_size |
934 | =item $ulong = $device->max_mem_alloc_size |
562 | |
935 | |
563 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_MEM_ALLOC_SIZE> and returns the result. |
936 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MAX_MEM_ALLOC_SIZE> and returns the result. |
564 | |
937 | |
565 | =item $int = $device->image2d_max_width |
938 | =item $int = $device->image2d_max_width |
566 | |
939 | |
567 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_IMAGE2D_MAX_WIDTH> and returns the result. |
940 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_IMAGE2D_MAX_WIDTH> and returns the result. |
568 | |
941 | |
569 | =item $int = $device->image2d_max_height |
942 | =item $int = $device->image2d_max_height |
570 | |
943 | |
571 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_IMAGE2D_MAX_HEIGHT> and returns the result. |
944 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_IMAGE2D_MAX_HEIGHT> and returns the result. |
572 | |
945 | |
573 | =item $int = $device->image3d_max_width |
946 | =item $int = $device->image3d_max_width |
574 | |
947 | |
575 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_IMAGE3D_MAX_WIDTH> and returns the result. |
948 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_IMAGE3D_MAX_WIDTH> and returns the result. |
576 | |
949 | |
577 | =item $int = $device->image3d_max_height |
950 | =item $int = $device->image3d_max_height |
578 | |
951 | |
579 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_IMAGE3D_MAX_HEIGHT> and returns the result. |
952 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_IMAGE3D_MAX_HEIGHT> and returns the result. |
580 | |
953 | |
581 | =item $int = $device->image3d_max_depth |
954 | =item $int = $device->image3d_max_depth |
582 | |
955 | |
583 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_IMAGE3D_MAX_DEPTH> and returns the result. |
956 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_IMAGE3D_MAX_DEPTH> and returns the result. |
584 | |
957 | |
585 | =item $uint = $device->image_support |
958 | =item $uint = $device->image_support |
586 | |
959 | |
587 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_IMAGE_SUPPORT> and returns the result. |
960 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_IMAGE_SUPPORT> and returns the result. |
588 | |
961 | |
589 | =item $int = $device->max_parameter_size |
962 | =item $int = $device->max_parameter_size |
590 | |
963 | |
591 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_PARAMETER_SIZE> and returns the result. |
964 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MAX_PARAMETER_SIZE> and returns the result. |
592 | |
965 | |
593 | =item $uint = $device->max_samplers |
966 | =item $uint = $device->max_samplers |
594 | |
967 | |
595 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_SAMPLERS> and returns the result. |
968 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MAX_SAMPLERS> and returns the result. |
596 | |
969 | |
597 | =item $uint = $device->mem_base_addr_align |
970 | =item $uint = $device->mem_base_addr_align |
598 | |
971 | |
599 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_MEM_BASE_ADDR_ALIGN> and returns the result. |
972 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MEM_BASE_ADDR_ALIGN> and returns the result. |
600 | |
973 | |
601 | =item $uint = $device->min_data_type_align_size |
974 | =item $uint = $device->min_data_type_align_size |
602 | |
975 | |
603 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_MIN_DATA_TYPE_ALIGN_SIZE> and returns the result. |
976 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MIN_DATA_TYPE_ALIGN_SIZE> and returns the result. |
604 | |
977 | |
605 | =item $device_fp_config = $device->single_fp_config |
978 | =item $device_fp_config = $device->single_fp_config |
606 | |
979 | |
607 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_SINGLE_FP_CONFIG> and returns the result. |
980 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_SINGLE_FP_CONFIG> and returns the result. |
608 | |
981 | |
609 | =item $device_mem_cache_type = $device->global_mem_cache_type |
982 | =item $device_mem_cache_type = $device->global_mem_cache_type |
610 | |
983 | |
611 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_GLOBAL_MEM_CACHE_TYPE> and returns the result. |
984 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_GLOBAL_MEM_CACHE_TYPE> and returns the result. |
612 | |
985 | |
613 | =item $uint = $device->global_mem_cacheline_size |
986 | =item $uint = $device->global_mem_cacheline_size |
614 | |
987 | |
615 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_GLOBAL_MEM_CACHELINE_SIZE> and returns the result. |
988 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_GLOBAL_MEM_CACHELINE_SIZE> and returns the result. |
616 | |
989 | |
617 | =item $ulong = $device->global_mem_cache_size |
990 | =item $ulong = $device->global_mem_cache_size |
618 | |
991 | |
619 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_GLOBAL_MEM_CACHE_SIZE> and returns the result. |
992 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_GLOBAL_MEM_CACHE_SIZE> and returns the result. |
620 | |
993 | |
621 | =item $ulong = $device->global_mem_size |
994 | =item $ulong = $device->global_mem_size |
622 | |
995 | |
623 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_GLOBAL_MEM_SIZE> and returns the result. |
996 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_GLOBAL_MEM_SIZE> and returns the result. |
624 | |
997 | |
625 | =item $ulong = $device->max_constant_buffer_size |
998 | =item $ulong = $device->max_constant_buffer_size |
626 | |
999 | |
627 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_CONSTANT_BUFFER_SIZE> and returns the result. |
1000 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MAX_CONSTANT_BUFFER_SIZE> and returns the result. |
628 | |
1001 | |
629 | =item $uint = $device->max_constant_args |
1002 | =item $uint = $device->max_constant_args |
630 | |
1003 | |
631 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_MAX_CONSTANT_ARGS> and returns the result. |
1004 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_MAX_CONSTANT_ARGS> and returns the result. |
632 | |
1005 | |
633 | =item $device_local_mem_type = $device->local_mem_type |
1006 | =item $device_local_mem_type = $device->local_mem_type |
634 | |
1007 | |
635 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_LOCAL_MEM_TYPE> and returns the result. |
1008 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_LOCAL_MEM_TYPE> and returns the result. |
636 | |
1009 | |
637 | =item $ulong = $device->local_mem_size |
1010 | =item $ulong = $device->local_mem_size |
638 | |
1011 | |
639 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_LOCAL_MEM_SIZE> and returns the result. |
1012 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_LOCAL_MEM_SIZE> and returns the result. |
640 | |
1013 | |
641 | =item $boolean = $device->error_correction_support |
1014 | =item $boolean = $device->error_correction_support |
642 | |
1015 | |
643 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_ERROR_CORRECTION_SUPPORT> and returns the result. |
1016 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_ERROR_CORRECTION_SUPPORT> and returns the result. |
644 | |
1017 | |
645 | =item $int = $device->profiling_timer_resolution |
1018 | =item $int = $device->profiling_timer_resolution |
646 | |
1019 | |
647 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_PROFILING_TIMER_RESOLUTION> and returns the result. |
1020 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PROFILING_TIMER_RESOLUTION> and returns the result. |
648 | |
1021 | |
649 | =item $boolean = $device->endian_little |
1022 | =item $boolean = $device->endian_little |
650 | |
1023 | |
651 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_ENDIAN_LITTLE> and returns the result. |
1024 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_ENDIAN_LITTLE> and returns the result. |
652 | |
1025 | |
653 | =item $boolean = $device->available |
1026 | =item $boolean = $device->available |
654 | |
1027 | |
655 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_AVAILABLE> and returns the result. |
1028 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_AVAILABLE> and returns the result. |
656 | |
1029 | |
657 | =item $boolean = $device->compiler_available |
1030 | =item $boolean = $device->compiler_available |
658 | |
1031 | |
659 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_COMPILER_AVAILABLE> and returns the result. |
1032 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_COMPILER_AVAILABLE> and returns the result. |
660 | |
1033 | |
661 | =item $device_exec_capabilities = $device->execution_capabilities |
1034 | =item $device_exec_capabilities = $device->execution_capabilities |
662 | |
1035 | |
663 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_EXECUTION_CAPABILITIES> and returns the result. |
1036 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_EXECUTION_CAPABILITIES> and returns the result. |
664 | |
1037 | |
665 | =item $command_queue_properties = $device->properties |
1038 | =item $command_queue_properties = $device->properties |
666 | |
1039 | |
667 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_QUEUE_PROPERTIES> and returns the result. |
1040 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_QUEUE_PROPERTIES> and returns the result. |
668 | |
1041 | |
669 | =item $ = $device->platform |
1042 | =item $ = $device->platform |
670 | |
1043 | |
671 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_PLATFORM> and returns the result. |
1044 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PLATFORM> and returns the result. |
672 | |
1045 | |
673 | =item $string = $device->name |
1046 | =item $string = $device->name |
674 | |
1047 | |
675 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_NAME> and returns the result. |
1048 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_NAME> and returns the result. |
676 | |
1049 | |
677 | =item $string = $device->vendor |
1050 | =item $string = $device->vendor |
678 | |
1051 | |
679 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_VENDOR> and returns the result. |
1052 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_VENDOR> and returns the result. |
680 | |
1053 | |
681 | =item $string = $device->driver_version |
1054 | =item $string = $device->driver_version |
682 | |
1055 | |
683 | Calls C<clGetDeviceInfo> with C<CL_DRIVER_VERSION> and returns the result. |
1056 | Calls C<clGetDeviceInfo> with C<OpenCL::DRIVER_VERSION> and returns the result. |
684 | |
1057 | |
685 | =item $string = $device->profile |
1058 | =item $string = $device->profile |
686 | |
1059 | |
687 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_PROFILE> and returns the result. |
1060 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PROFILE> and returns the result. |
688 | |
1061 | |
689 | =item $string = $device->version |
1062 | =item $string = $device->version |
690 | |
1063 | |
691 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_VERSION> and returns the result. |
1064 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_VERSION> and returns the result. |
692 | |
1065 | |
693 | =item $string = $device->extensions |
1066 | =item $string = $device->extensions |
694 | |
1067 | |
695 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_EXTENSIONS> and returns the result. |
1068 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_EXTENSIONS> and returns the result. |
696 | |
1069 | |
697 | =item $uint = $device->preferred_vector_width_half |
1070 | =item $uint = $device->preferred_vector_width_half |
698 | |
1071 | |
699 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_PREFERRED_VECTOR_WIDTH_HALF> and returns the result. |
1072 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PREFERRED_VECTOR_WIDTH_HALF> and returns the result. |
700 | |
1073 | |
701 | =item $uint = $device->native_vector_width_char |
1074 | =item $uint = $device->native_vector_width_char |
702 | |
1075 | |
703 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_NATIVE_VECTOR_WIDTH_CHAR> and returns the result. |
1076 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_NATIVE_VECTOR_WIDTH_CHAR> and returns the result. |
704 | |
1077 | |
705 | =item $uint = $device->native_vector_width_short |
1078 | =item $uint = $device->native_vector_width_short |
706 | |
1079 | |
707 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_NATIVE_VECTOR_WIDTH_SHORT> and returns the result. |
1080 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_NATIVE_VECTOR_WIDTH_SHORT> and returns the result. |
708 | |
1081 | |
709 | =item $uint = $device->native_vector_width_int |
1082 | =item $uint = $device->native_vector_width_int |
710 | |
1083 | |
711 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_NATIVE_VECTOR_WIDTH_INT> and returns the result. |
1084 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_NATIVE_VECTOR_WIDTH_INT> and returns the result. |
712 | |
1085 | |
713 | =item $uint = $device->native_vector_width_long |
1086 | =item $uint = $device->native_vector_width_long |
714 | |
1087 | |
715 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_NATIVE_VECTOR_WIDTH_LONG> and returns the result. |
1088 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_NATIVE_VECTOR_WIDTH_LONG> and returns the result. |
716 | |
1089 | |
717 | =item $uint = $device->native_vector_width_float |
1090 | =item $uint = $device->native_vector_width_float |
718 | |
1091 | |
719 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_NATIVE_VECTOR_WIDTH_FLOAT> and returns the result. |
1092 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_NATIVE_VECTOR_WIDTH_FLOAT> and returns the result. |
720 | |
1093 | |
721 | =item $uint = $device->native_vector_width_double |
1094 | =item $uint = $device->native_vector_width_double |
722 | |
1095 | |
723 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_NATIVE_VECTOR_WIDTH_DOUBLE> and returns the result. |
1096 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_NATIVE_VECTOR_WIDTH_DOUBLE> and returns the result. |
724 | |
1097 | |
725 | =item $uint = $device->native_vector_width_half |
1098 | =item $uint = $device->native_vector_width_half |
726 | |
1099 | |
727 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_NATIVE_VECTOR_WIDTH_HALF> and returns the result. |
1100 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_NATIVE_VECTOR_WIDTH_HALF> and returns the result. |
728 | |
1101 | |
729 | =item $device_fp_config = $device->double_fp_config |
1102 | =item $device_fp_config = $device->double_fp_config |
730 | |
1103 | |
731 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_DOUBLE_FP_CONFIG> and returns the result. |
1104 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_DOUBLE_FP_CONFIG> and returns the result. |
732 | |
1105 | |
733 | =item $device_fp_config = $device->half_fp_config |
1106 | =item $device_fp_config = $device->half_fp_config |
734 | |
1107 | |
735 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_HALF_FP_CONFIG> and returns the result. |
1108 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_HALF_FP_CONFIG> and returns the result. |
736 | |
1109 | |
737 | =item $boolean = $device->host_unified_memory |
1110 | =item $boolean = $device->host_unified_memory |
738 | |
1111 | |
739 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_HOST_UNIFIED_MEMORY> and returns the result. |
1112 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_HOST_UNIFIED_MEMORY> and returns the result. |
740 | |
1113 | |
741 | =item $device = $device->parent_device_ext |
1114 | =item $device = $device->parent_device_ext |
742 | |
1115 | |
743 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_PARENT_DEVICE_EXT> and returns the result. |
1116 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PARENT_DEVICE_EXT> and returns the result. |
744 | |
1117 | |
745 | =item @device_partition_property_exts = $device->partition_types_ext |
1118 | =item @device_partition_property_exts = $device->partition_types_ext |
746 | |
1119 | |
747 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_PARTITION_TYPES_EXT> and returns the result. |
1120 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PARTITION_TYPES_EXT> and returns the result. |
748 | |
1121 | |
749 | =item @device_partition_property_exts = $device->affinity_domains_ext |
1122 | =item @device_partition_property_exts = $device->affinity_domains_ext |
750 | |
1123 | |
751 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_AFFINITY_DOMAINS_EXT> and returns the result. |
1124 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_AFFINITY_DOMAINS_EXT> and returns the result. |
752 | |
1125 | |
753 | =item $uint = $device->reference_count_ext |
1126 | =item $uint = $device->reference_count_ext |
754 | |
1127 | |
755 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_REFERENCE_COUNT_EXT > and returns the result. |
1128 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_REFERENCE_COUNT_EXT> and returns the result. |
756 | |
1129 | |
757 | =item @device_partition_property_exts = $device->partition_style_ext |
1130 | =item @device_partition_property_exts = $device->partition_style_ext |
758 | |
1131 | |
759 | Calls C<clGetDeviceInfo> with C<CL_DEVICE_PARTITION_STYLE_EXT> and returns the result. |
1132 | Calls C<clGetDeviceInfo> with C<OpenCL::DEVICE_PARTITION_STYLE_EXT> and returns the result. |
760 | |
1133 | |
761 | =for gengetinfo end device |
1134 | =for gengetinfo end device |
762 | |
1135 | |
763 | =back |
1136 | =back |
764 | |
1137 | |
765 | =head2 THE OpenCL::Context CLASS |
1138 | =head2 THE OpenCL::Context CLASS |
766 | |
1139 | |
|
|
1140 | An OpenCL::Context is basically a container, or manager, for a number of |
|
|
1141 | devices of a platform. It is used to create all sorts of secondary objects |
|
|
1142 | such as buffers, queues, programs and so on. |
|
|
1143 | |
|
|
1144 | All context creation functions and methods take a list of properties |
|
|
1145 | (type-value pairs). All property values can be specified as integers - |
|
|
1146 | some additionally support other types: |
|
|
1147 | |
767 | =over 4 |
1148 | =over 4 |
768 | |
1149 | |
|
|
1150 | =item OpenCL::CONTEXT_PLATFORM |
|
|
1151 | |
|
|
1152 | Also accepts OpenCL::Platform objects. |
|
|
1153 | |
|
|
1154 | =item OpenCL::GLX_DISPLAY_KHR |
|
|
1155 | |
|
|
1156 | Also accepts C<undef>, in which case a deep and troubling hack is engaged |
|
|
1157 | to find the current glx display (see L<GLX SUPPORT>). |
|
|
1158 | |
|
|
1159 | =item OpenCL::GL_CONTEXT_KHR |
|
|
1160 | |
|
|
1161 | Also accepts C<undef>, in which case a deep and troubling hack is engaged |
|
|
1162 | to find the current glx context (see L<GLX SUPPORT>). |
|
|
1163 | |
|
|
1164 | =back |
|
|
1165 | |
|
|
1166 | =over 4 |
|
|
1167 | |
|
|
1168 | =item $prog = $ctx->build_program ($program, $options = "") |
|
|
1169 | |
|
|
1170 | This convenience function tries to build the program on all devices in |
|
|
1171 | the context. If the build fails, then the function will C<croak> with the |
|
|
1172 | build log. Otherwise ti returns the program object. |
|
|
1173 | |
|
|
1174 | The C<$program> can either be a C<OpenCL::Program> object or a string |
|
|
1175 | containing the program. In the latter case, a program objetc will be |
|
|
1176 | created automatically. |
|
|
1177 | |
|
|
1178 | =cut |
|
|
1179 | |
|
|
1180 | sub OpenCL::Context::build_program { |
|
|
1181 | my ($self, $prog, $options) = @_; |
|
|
1182 | |
|
|
1183 | $prog = $self->program_with_source ($prog) |
|
|
1184 | unless ref $prog; |
|
|
1185 | |
|
|
1186 | eval { $prog->build (undef, $options); 1 } |
|
|
1187 | or errno == BUILD_PROGRAM_FAILURE |
|
|
1188 | or errno == INVALID_BINARY # workaround nvidia bug |
|
|
1189 | or Carp::croak "OpenCL::Context->build_program: " . err2str; |
|
|
1190 | |
|
|
1191 | # we check status for all devices |
|
|
1192 | for my $dev ($self->devices) { |
|
|
1193 | $prog->build_status ($dev) == BUILD_SUCCESS |
|
|
1194 | or Carp::croak "Building OpenCL program for device '" . $dev->name . "' failed:\n" |
|
|
1195 | . $prog->build_log ($dev); |
|
|
1196 | } |
|
|
1197 | |
|
|
1198 | $prog |
|
|
1199 | } |
|
|
1200 | |
769 | =item $queue = $ctx->queue ($device, $properties) |
1201 | =item $queue = $ctx->queue ($device, $properties) |
770 | |
1202 | |
771 | Create a new OpenCL::Queue object from the context and the given device. |
1203 | Create a new OpenCL::Queue object from the context and the given device. |
772 | |
1204 | |
773 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateCommandQueue.html> |
1205 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateCommandQueue.html> |
|
|
1206 | |
|
|
1207 | Example: create an out-of-order queue. |
|
|
1208 | |
|
|
1209 | $queue = $ctx->queue ($device, OpenCL::QUEUE_OUT_OF_ORDER_EXEC_MODE_ENABLE); |
774 | |
1210 | |
775 | =item $ev = $ctx->user_event |
1211 | =item $ev = $ctx->user_event |
776 | |
1212 | |
777 | Creates a new OpenCL::UserEvent object. |
1213 | Creates a new OpenCL::UserEvent object. |
778 | |
1214 | |
… | |
… | |
781 | =item $buf = $ctx->buffer ($flags, $len) |
1217 | =item $buf = $ctx->buffer ($flags, $len) |
782 | |
1218 | |
783 | Creates a new OpenCL::Buffer (actually OpenCL::BufferObj) object with the |
1219 | Creates a new OpenCL::Buffer (actually OpenCL::BufferObj) object with the |
784 | given flags and octet-size. |
1220 | given flags and octet-size. |
785 | |
1221 | |
|
|
1222 | flags: OpenCL::MEM_READ_WRITE, OpenCL::MEM_WRITE_ONLY, OpenCL::MEM_READ_ONLY, |
|
|
1223 | OpenCL::MEM_USE_HOST_PTR, OpenCL::MEM_ALLOC_HOST_PTR, OpenCL::MEM_COPY_HOST_PTR, |
|
|
1224 | OpenCL::MEM_HOST_WRITE_ONLY, OpenCL::MEM_HOST_READ_ONLY, OpenCL::MEM_HOST_NO_ACCESS. |
|
|
1225 | |
786 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateBuffer.html> |
1226 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateBuffer.html> |
|
|
1227 | |
|
|
1228 | A somewhat informative thread on the flags is: |
|
|
1229 | |
|
|
1230 | L<http://www.khronos.org/message_boards/viewtopic.php?f=28&t=2440> |
787 | |
1231 | |
788 | =item $buf = $ctx->buffer_sv ($flags, $data) |
1232 | =item $buf = $ctx->buffer_sv ($flags, $data) |
789 | |
1233 | |
790 | Creates a new OpenCL::Buffer (actually OpenCL::BufferObj) object and |
1234 | Creates a new OpenCL::Buffer (actually OpenCL::BufferObj) object and |
791 | initialise it with the given data values. |
1235 | initialise it with the given data values. |
792 | |
1236 | |
|
|
1237 | =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) |
|
|
1238 | |
|
|
1239 | Creates a new OpenCL::Image object and optionally initialises it with |
|
|
1240 | the given data values. |
|
|
1241 | |
|
|
1242 | channel_order: OpenCL::R, OpenCL::A, OpenCL::RG, OpenCL::RA, OpenCL::RGB, |
|
|
1243 | OpenCL::RGBA, OpenCL::BGRA, OpenCL::ARGB, OpenCL::INTENSITY, OpenCL::LUMINANCE, |
|
|
1244 | OpenCL::Rx, OpenCL::RGx, OpenCL::RGBx. |
|
|
1245 | |
|
|
1246 | channel_type: OpenCL::SNORM_INT8, OpenCL::SNORM_INT16, OpenCL::UNORM_INT8, |
|
|
1247 | OpenCL::UNORM_INT16, OpenCL::UNORM_SHORT_565, OpenCL::UNORM_SHORT_555, |
|
|
1248 | OpenCL::UNORM_INT_101010, OpenCL::SIGNED_INT8, OpenCL::SIGNED_INT16, |
|
|
1249 | OpenCL::SIGNED_INT32, OpenCL::UNSIGNED_INT8, OpenCL::UNSIGNED_INT16, |
|
|
1250 | OpenCL::UNSIGNED_INT32, OpenCL::HALF_FLOAT, OpenCL::FLOAT. |
|
|
1251 | |
|
|
1252 | type: OpenCL::MEM_OBJECT_BUFFER, OpenCL::MEM_OBJECT_IMAGE2D, |
|
|
1253 | OpenCL::MEM_OBJECT_IMAGE3D, OpenCL::MEM_OBJECT_IMAGE2D_ARRAY, |
|
|
1254 | OpenCL::MEM_OBJECT_IMAGE1D, OpenCL::MEM_OBJECT_IMAGE1D_ARRAY, |
|
|
1255 | OpenCL::MEM_OBJECT_IMAGE1D_BUFFER. |
|
|
1256 | |
|
|
1257 | L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clCreateImage.html> |
|
|
1258 | |
793 | =item $img = $ctx->image2d ($flags, $channel_order, $channel_type, $width, $height, $row_pitch = 0, $data = undef) |
1259 | =item $img = $ctx->image2d ($flags, $channel_order, $channel_type, $width, $height, $row_pitch = 0, $data = undef) |
794 | |
1260 | |
795 | Creates a new OpenCL::Image2D object and optionally initialises it with |
1261 | Creates a new OpenCL::Image2D object and optionally initialises it with |
796 | the given data values. |
1262 | the given data values. |
797 | |
1263 | |
… | |
… | |
807 | =item $buffer = $ctx->gl_buffer ($flags, $bufobj) |
1273 | =item $buffer = $ctx->gl_buffer ($flags, $bufobj) |
808 | |
1274 | |
809 | Creates a new OpenCL::Buffer (actually OpenCL::BufferObj) object that refers to the given |
1275 | Creates a new OpenCL::Buffer (actually OpenCL::BufferObj) object that refers to the given |
810 | OpenGL buffer object. |
1276 | OpenGL buffer object. |
811 | |
1277 | |
|
|
1278 | flags: OpenCL::MEM_READ_WRITE, OpenCL::MEM_READ_ONLY, OpenCL::MEM_WRITE_ONLY. |
|
|
1279 | |
812 | http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateFromGLBuffer.html |
1280 | http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateFromGLBuffer.html |
813 | |
1281 | |
|
|
1282 | =item $img = $ctx->gl_texture ($flags, $target, $miplevel, $texture) |
|
|
1283 | |
|
|
1284 | Creates a new OpenCL::Image object that refers to the given OpenGL |
|
|
1285 | texture object or buffer. |
|
|
1286 | |
|
|
1287 | target: GL_TEXTURE_1D, GL_TEXTURE_1D_ARRAY, GL_TEXTURE_BUFFER, |
|
|
1288 | GL_TEXTURE_2D, GL_TEXTURE_2D_ARRAY, GL_TEXTURE_3D, |
|
|
1289 | GL_TEXTURE_CUBE_MAP_POSITIVE_X, GL_TEXTURE_CUBE_MAP_POSITIVE_Y, |
|
|
1290 | GL_TEXTURE_CUBE_MAP_POSITIVE_Z, GL_TEXTURE_CUBE_MAP_NEGATIVE_X, |
|
|
1291 | GL_TEXTURE_CUBE_MAP_NEGATIVE_Y, GL_TEXTURE_CUBE_MAP_NEGATIVE_Z, |
|
|
1292 | GL_TEXTURE_RECTANGLE/GL_TEXTURE_RECTANGLE_ARB. |
|
|
1293 | |
|
|
1294 | http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clCreateFromGLTexture.html |
|
|
1295 | |
814 | =item $ctx->gl_texture2d ($flags, $target, $miplevel, $texture) |
1296 | =item $img = $ctx->gl_texture2d ($flags, $target, $miplevel, $texture) |
815 | |
1297 | |
816 | Creates a new OpenCL::Image2D object that refers to the given OpenGL |
1298 | Creates a new OpenCL::Image2D object that refers to the given OpenGL |
817 | 2D texture object. |
1299 | 2D texture object. |
818 | |
1300 | |
819 | http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateFromGLTexture2D.html |
1301 | http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateFromGLTexture2D.html |
820 | |
1302 | |
821 | =item $ctx->gl_texture3d ($flags, $target, $miplevel, $texture) |
1303 | =item $img = $ctx->gl_texture3d ($flags, $target, $miplevel, $texture) |
822 | |
1304 | |
823 | Creates a new OpenCL::Image3D object that refers to the given OpenGL |
1305 | Creates a new OpenCL::Image3D object that refers to the given OpenGL |
824 | 3D texture object. |
1306 | 3D texture object. |
825 | |
1307 | |
826 | http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateFromGLTexture3D.html |
1308 | http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateFromGLTexture3D.html |
… | |
… | |
841 | |
1323 | |
842 | =item $sampler = $ctx->sampler ($normalized_coords, $addressing_mode, $filter_mode) |
1324 | =item $sampler = $ctx->sampler ($normalized_coords, $addressing_mode, $filter_mode) |
843 | |
1325 | |
844 | Creates a new OpenCL::Sampler object. |
1326 | Creates a new OpenCL::Sampler object. |
845 | |
1327 | |
|
|
1328 | addressing_mode: OpenCL::ADDRESS_NONE, OpenCL::ADDRESS_CLAMP_TO_EDGE, |
|
|
1329 | OpenCL::ADDRESS_CLAMP, OpenCL::ADDRESS_REPEAT, OpenCL::ADDRESS_MIRRORED_REPEAT. |
|
|
1330 | |
|
|
1331 | filter_mode: OpenCL::FILTER_NEAREST, OpenCL::FILTER_LINEAR. |
|
|
1332 | |
846 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateSampler.html> |
1333 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateSampler.html> |
847 | |
1334 | |
848 | =item $program = $ctx->program_with_source ($string) |
1335 | =item $program = $ctx->program_with_source ($string) |
849 | |
1336 | |
850 | Creates a new OpenCL::Program object from the given source code. |
1337 | Creates a new OpenCL::Program object from the given source code. |
851 | |
1338 | |
852 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateProgramWithSource.html> |
1339 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateProgramWithSource.html> |
853 | |
1340 | |
|
|
1341 | =item ($program, \@status) = $ctx->program_with_binary (\@devices, \@binaries) |
|
|
1342 | |
|
|
1343 | Creates a new OpenCL::Program object from the given binaries. |
|
|
1344 | |
|
|
1345 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateProgramWithBinary.html> |
|
|
1346 | |
|
|
1347 | Example: clone an existing program object that contains a successfully |
|
|
1348 | compiled program, no matter how useless this is. |
|
|
1349 | |
|
|
1350 | my $clone = $ctx->program_with_binary ([$prog->devices], [$prog->binaries]); |
|
|
1351 | |
|
|
1352 | =item $program = $ctx->program_with_built_in_kernels (\@devices, $kernel_names) |
|
|
1353 | |
|
|
1354 | Creates a new OpenCL::Program object from the given built-in kernel names. |
|
|
1355 | |
|
|
1356 | L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clCreateProgramWithBuiltInKernels.html> |
|
|
1357 | |
|
|
1358 | =item $program = $ctx->link_program (\@devices, $options, \@programs, $cb->($program) = undef) |
|
|
1359 | |
|
|
1360 | Links all (already compiled) program objects specified in C<@programs> |
|
|
1361 | together and returns a new OpenCL::Program object with the result. |
|
|
1362 | |
|
|
1363 | L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clLinkProgram.html> |
|
|
1364 | |
854 | =item $packed_value = $ctx->info ($name) |
1365 | =item $packed_value = $ctx->info ($name) |
855 | |
1366 | |
856 | See C<< $platform->info >> for details. |
1367 | See C<< $platform->info >> for details. |
857 | |
1368 | |
858 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetContextInfo.html> |
1369 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetContextInfo.html> |
859 | |
1370 | |
860 | =for gengetinfo begin context |
1371 | =for gengetinfo begin context |
861 | |
1372 | |
862 | =item $uint = $context->reference_count |
1373 | =item $uint = $context->reference_count |
863 | |
1374 | |
864 | Calls C<clGetContextInfo> with C<CL_CONTEXT_REFERENCE_COUNT> and returns the result. |
1375 | Calls C<clGetContextInfo> with C<OpenCL::CONTEXT_REFERENCE_COUNT> and returns the result. |
865 | |
1376 | |
866 | =item @devices = $context->devices |
1377 | =item @devices = $context->devices |
867 | |
1378 | |
868 | Calls C<clGetContextInfo> with C<CL_CONTEXT_DEVICES> and returns the result. |
1379 | Calls C<clGetContextInfo> with C<OpenCL::CONTEXT_DEVICES> and returns the result. |
869 | |
1380 | |
870 | =item @property_ints = $context->properties |
1381 | =item @property_ints = $context->properties |
871 | |
1382 | |
872 | Calls C<clGetContextInfo> with C<CL_CONTEXT_PROPERTIES> and returns the result. |
1383 | Calls C<clGetContextInfo> with C<OpenCL::CONTEXT_PROPERTIES> and returns the result. |
873 | |
1384 | |
874 | =item $uint = $context->num_devices |
1385 | =item $uint = $context->num_devices |
875 | |
1386 | |
876 | Calls C<clGetContextInfo> with C<CL_CONTEXT_NUM_DEVICES> and returns the result. |
1387 | Calls C<clGetContextInfo> with C<OpenCL::CONTEXT_NUM_DEVICES> and returns the result. |
877 | |
1388 | |
878 | =for gengetinfo end context |
1389 | =for gengetinfo end context |
879 | |
1390 | |
880 | =back |
1391 | =back |
881 | |
1392 | |
882 | =head2 THE OpenCL::Queue CLASS |
1393 | =head2 THE OpenCL::Queue CLASS |
883 | |
1394 | |
884 | An OpenCL::Queue represents an execution queue for OpenCL. You execute |
1395 | An OpenCL::Queue represents an execution queue for OpenCL. You execute |
885 | requests by calling their respective C<enqueue_xxx> method and waitinf for |
1396 | requests by calling their respective method and waiting for it to complete |
886 | it to complete in some way. |
1397 | in some way. |
887 | |
1398 | |
888 | All the enqueue methods return an event object that can be used to wait |
1399 | Most methods that enqueue some request return an event object that can |
889 | for completion, unless the method is called in void context, in which case |
1400 | be used to wait for completion (optionally using a callback), unless |
890 | no event object is created. |
1401 | the method is called in void context, in which case no event object is |
|
|
1402 | created. |
891 | |
1403 | |
892 | They also allow you to specify any number of other event objects that this |
1404 | They also allow you to specify any number of other event objects that this |
893 | request has to wait for before it starts executing, by simply passing the |
1405 | request has to wait for before it starts executing, by simply passing the |
894 | event objects as extra parameters to the enqueue methods. |
1406 | event objects as extra parameters to the enqueue methods. To simplify |
|
|
1407 | program design, this module ignores any C<undef> values in the list of |
|
|
1408 | events. This makes it possible to code operations such as this, without |
|
|
1409 | having to put a valid event object into C<$event> first: |
|
|
1410 | |
|
|
1411 | $event = $queue->xxx (..., $event); |
895 | |
1412 | |
896 | Queues execute in-order by default, without any parallelism, so in most |
1413 | Queues execute in-order by default, without any parallelism, so in most |
897 | cases (i.e. you use only one queue) it's not necessary to wait for or |
1414 | cases (i.e. you use only one queue) it's not necessary to wait for or |
898 | create event objects. |
1415 | create event objects, althoguh an our of order queue is often a bit |
|
|
1416 | faster. |
899 | |
1417 | |
900 | =over 4 |
1418 | =over 4 |
901 | |
1419 | |
902 | =item $ev = $queue->enqueue_read_buffer ($buffer, $blocking, $offset, $len, $data, $wait_events...) |
1420 | =item $ev = $queue->read_buffer ($buffer, $blocking, $offset, $len, $data, $wait_events...) |
903 | |
1421 | |
904 | Reads data from buffer into the given string. |
1422 | Reads data from buffer into the given string. |
905 | |
1423 | |
906 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReadBuffer.html> |
1424 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReadBuffer.html> |
907 | |
1425 | |
908 | =item $ev = $queue->enqueue_write_buffer ($buffer, $blocking, $offset, $data, $wait_events...) |
1426 | =item $ev = $queue->write_buffer ($buffer, $blocking, $offset, $data, $wait_events...) |
909 | |
1427 | |
910 | Writes data to buffer from the given string. |
1428 | Writes data to buffer from the given string. |
911 | |
1429 | |
912 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWriteBuffer.html> |
1430 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWriteBuffer.html> |
913 | |
1431 | |
914 | =item $ev = $queue->enqueue_copy_buffer ($src, $dst, $src_offset, $dst_offset, $len, $wait_events...) |
1432 | =item $ev = $queue->copy_buffer ($src, $dst, $src_offset, $dst_offset, $len, $wait_events...) |
915 | |
1433 | |
916 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyBuffer.html> |
1434 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyBuffer.html> |
917 | |
1435 | |
918 | =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...) |
1436 | $eue->read_buffer_rect ($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...) |
919 | |
1437 | |
920 | http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReadBufferRect.html |
1438 | http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReadBufferRect.html |
921 | |
1439 | |
922 | =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...) |
1440 | =item $ev = $queue->write_buffer_rect ($buf, $blocking, $buf_y, $host_x, $host_z, $height, $buf_row_pitch, $host_row_pitch, $data, $wait_events...) |
923 | |
1441 | |
924 | http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWriteBufferRect.html |
1442 | http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWriteBufferRect.html |
925 | |
1443 | |
926 | =item $ev = $queue->enqueue_read_image ($src, $blocking, $x, $y, $z, $width, $height, $depth, $row_pitch, $slice_pitch, $data, $wait_events...) |
|
|
927 | |
|
|
928 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyBufferRect.html> |
|
|
929 | |
|
|
930 | =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...) |
1444 | =item $ev = $queue->copy_buffer_to_image ($src_buffer, $dst_image, $src_offset, $dst_x, $dst_y, $dst_z, $width, $height, $depth, $wait_events...) |
|
|
1445 | |
|
|
1446 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyBufferToImage.html> |
|
|
1447 | |
|
|
1448 | =item $ev = $queue->read_image ($src, $blocking, $x, $y, $z, $width, $height, $depth, $row_pitch, $slice_pitch, $data, $wait_events...) |
|
|
1449 | |
|
|
1450 | C<$row_pitch> (and C<$slice_pitch>) can be C<0>, in which case the OpenCL |
|
|
1451 | module uses the image width (and height) to supply default values. |
931 | |
1452 | |
932 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReadImage.html> |
1453 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReadImage.html> |
933 | |
1454 | |
934 | =item $ev = $queue->enqueue_write_image ($src, $blocking, $x, $y, $z, $width, $height, $depth, $row_pitch, $slice_pitch, $data, $wait_events...) |
1455 | =item $ev = $queue->write_image ($src, $blocking, $x, $y, $z, $width, $height, $depth, $row_pitch, $slice_pitch, $data, $wait_events...) |
935 | |
1456 | |
|
|
1457 | C<$row_pitch> (and C<$slice_pitch>) can be C<0>, in which case the OpenCL |
|
|
1458 | module uses the image width (and height) to supply default values. |
936 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWriteImage.html> |
1459 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWriteImage.html> |
937 | |
1460 | |
938 | =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...) |
1461 | =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...) |
939 | |
1462 | |
940 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyImage.html> |
1463 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyImage.html> |
941 | |
1464 | |
942 | =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...) |
1465 | =item $ev = $queue->copy_image_to_buffer ($src_image, $dst_image, $src_x, $src_y, $src_z, $width, $height, $depth, $dst_offset, $wait_events...) |
943 | |
1466 | |
944 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyImageToBuffer.html> |
1467 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyImageToBuffer.html> |
945 | |
1468 | |
946 | =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...) |
1469 | =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...) |
947 | |
1470 | |
948 | Yeah. |
1471 | Yeah. |
949 | |
1472 | |
950 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyBufferToImage.html>. |
1473 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyBufferToImage.html>. |
951 | |
1474 | |
|
|
1475 | =item $ev = $queue->fill_buffer ($mem, $pattern, $offset, $size, ...) |
|
|
1476 | |
|
|
1477 | Fills the given buffer object with repeated applications of C<$pattern>, |
|
|
1478 | starting at C<$offset> for C<$size> octets. |
|
|
1479 | |
|
|
1480 | L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clEnqueueFillBuffer.html> |
|
|
1481 | |
|
|
1482 | =item $ev = $queue->fill_image ($img, $r, $g, $b, $a, $x, $y, $z, $width, $height, $depth, ...) |
|
|
1483 | |
|
|
1484 | Fills the given image area with the given rgba colour components. The |
|
|
1485 | components are normally floating point values between C<0> and C<1>, |
|
|
1486 | except when the image channel data type is a signe dor unsigned |
|
|
1487 | unnormalised format, in which case the range is determined by the format. |
|
|
1488 | |
|
|
1489 | L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clEnqueueFillImage.html> |
|
|
1490 | |
952 | =item $ev = $queue->enqueue_task ($kernel, $wait_events...) |
1491 | =item $ev = $queue->task ($kernel, $wait_events...) |
953 | |
1492 | |
954 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueTask.html> |
1493 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueTask.html> |
955 | |
1494 | |
956 | =item $ev = $queue->enqueue_nd_range_kernel ($kernel, @$global_work_offset, @$global_work_size, @$local_work_size, $wait_events...) |
1495 | =item $ev = $queue->nd_range_kernel ($kernel, \@global_work_offset, \@global_work_size, \@local_work_size, $wait_events...) |
957 | |
1496 | |
958 | Enqueues a kernel execution. |
1497 | Enqueues a kernel execution. |
959 | |
1498 | |
960 | @$global_work_size must be specified as a reference to an array of |
1499 | \@global_work_size must be specified as a reference to an array of |
961 | integers specifying the work sizes (element counts). |
1500 | integers specifying the work sizes (element counts). |
962 | |
1501 | |
963 | @$global_work_offset must be either C<undef> (in which case all offsets |
1502 | \@global_work_offset must be either C<undef> (in which case all offsets |
964 | are C<0>), or a reference to an array of work offsets, with the same number |
1503 | are C<0>), or a reference to an array of work offsets, with the same number |
965 | of elements as @$global_work_size. |
1504 | of elements as \@global_work_size. |
966 | |
1505 | |
967 | @$local_work_size must be either C<undef> (in which case the |
1506 | \@local_work_size must be either C<undef> (in which case the |
968 | implementation is supposed to choose good local work sizes), or a |
1507 | implementation is supposed to choose good local work sizes), or a |
969 | reference to an array of local work sizes, with the same number of |
1508 | reference to an array of local work sizes, with the same number of |
970 | elements as @$global_work_size. |
1509 | elements as \@global_work_size. |
971 | |
1510 | |
972 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueNDRangeKernel.html> |
1511 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueNDRangeKernel.html> |
973 | |
1512 | |
974 | =item $ev = $queue->enqueue_marker ($wait_events...) |
1513 | =item $ev = $queue->migrate_mem_objects (\@mem_objects, $flags, $wait_events...) |
975 | |
1514 | |
|
|
1515 | Migrates a number of OpenCL::Memory objects to or from the device. |
|
|
1516 | |
|
|
1517 | flags: OpenCL::MIGRATE_MEM_OBJECT_HOST, OpenCL::MIGRATE_MEM_OBJECT_CONTENT_UNDEFINED |
|
|
1518 | |
976 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueMarker.html> |
1519 | L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clEnqueueMigrateMemObjects.html> |
977 | |
1520 | |
978 | =item $ev = $queue->enqueue_acquire_gl_objects ([object, ...], $wait_events...) |
1521 | =item $ev = $queue->acquire_gl_objects ([object, ...], $wait_events...) |
979 | |
1522 | |
980 | Enqueues a list (an array-ref of OpenCL::Memory objects) to be acquired |
1523 | Enqueues a list (an array-ref of OpenCL::Memory objects) to be acquired |
981 | for subsequent OpenCL usage. |
1524 | for subsequent OpenCL usage. |
982 | |
1525 | |
983 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueAcquireGLObjects.html> |
1526 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueAcquireGLObjects.html> |
984 | |
1527 | |
985 | =item $ev = $queue->enqueue_release_gl_objects ([object, ...], $wait_events...) |
1528 | =item $ev = $queue->release_gl_objects ([object, ...], $wait_events...) |
986 | |
1529 | |
987 | Enqueues a list (an array-ref of OpenCL::Memory objects) to be released |
1530 | Enqueues a list (an array-ref of OpenCL::Memory objects) to be released |
988 | for subsequent OpenGL usage. |
1531 | for subsequent OpenGL usage. |
989 | |
1532 | |
990 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReleaseGLObjects.html> |
1533 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReleaseGLObjects.html> |
991 | |
1534 | |
992 | =item $ev = $queue->enqueue_wait_for_events ($wait_events...) |
1535 | =item $ev = $queue->wait_for_events ($wait_events...) |
993 | |
1536 | |
994 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWaitForEvents.html> |
1537 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWaitForEvents.html> |
995 | |
1538 | |
996 | =item $queue->enqueue_barrier |
1539 | =item $ev = $queue->marker ($wait_events...) |
997 | |
1540 | |
|
|
1541 | L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clEnqueueMarkerWithWaitList.html> |
|
|
1542 | |
|
|
1543 | =item $ev = $queue->barrier ($wait_events...) |
|
|
1544 | |
998 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueBarrier.html> |
1545 | L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clEnqueueBarrierWithWaitList.html> |
999 | |
1546 | |
1000 | =item $queue->flush |
1547 | =item $queue->flush |
1001 | |
1548 | |
1002 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clFlush.html> |
1549 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clFlush.html> |
1003 | |
1550 | |
… | |
… | |
1013 | |
1560 | |
1014 | =for gengetinfo begin command_queue |
1561 | =for gengetinfo begin command_queue |
1015 | |
1562 | |
1016 | =item $ctx = $command_queue->context |
1563 | =item $ctx = $command_queue->context |
1017 | |
1564 | |
1018 | Calls C<clGetCommandQueueInfo> with C<CL_QUEUE_CONTEXT> and returns the result. |
1565 | Calls C<clGetCommandQueueInfo> with C<OpenCL::QUEUE_CONTEXT> and returns the result. |
1019 | |
1566 | |
1020 | =item $device = $command_queue->device |
1567 | =item $device = $command_queue->device |
1021 | |
1568 | |
1022 | Calls C<clGetCommandQueueInfo> with C<CL_QUEUE_DEVICE> and returns the result. |
1569 | Calls C<clGetCommandQueueInfo> with C<OpenCL::QUEUE_DEVICE> and returns the result. |
1023 | |
1570 | |
1024 | =item $uint = $command_queue->reference_count |
1571 | =item $uint = $command_queue->reference_count |
1025 | |
1572 | |
1026 | Calls C<clGetCommandQueueInfo> with C<CL_QUEUE_REFERENCE_COUNT> and returns the result. |
1573 | Calls C<clGetCommandQueueInfo> with C<OpenCL::QUEUE_REFERENCE_COUNT> and returns the result. |
1027 | |
1574 | |
1028 | =item $command_queue_properties = $command_queue->properties |
1575 | =item $command_queue_properties = $command_queue->properties |
1029 | |
1576 | |
1030 | Calls C<clGetCommandQueueInfo> with C<CL_QUEUE_PROPERTIES> and returns the result. |
1577 | Calls C<clGetCommandQueueInfo> with C<OpenCL::QUEUE_PROPERTIES> and returns the result. |
1031 | |
1578 | |
1032 | =for gengetinfo end command_queue |
1579 | =for gengetinfo end command_queue |
|
|
1580 | |
|
|
1581 | =back |
|
|
1582 | |
|
|
1583 | =head3 MEMORY MAPPED BUFFERS |
|
|
1584 | |
|
|
1585 | OpenCL allows you to map buffers and images to host memory (read: perl |
|
|
1586 | scalars). This is done much like reading or copying a buffer, by enqueuing |
|
|
1587 | a map or unmap operation on the command queue. |
|
|
1588 | |
|
|
1589 | The map operations return an C<OpenCL::Mapped> object - see L<THE |
|
|
1590 | OpenCL::Mapped CLASS> section for details on what to do with these |
|
|
1591 | objects. |
|
|
1592 | |
|
|
1593 | The object will be unmapped automatically when the mapped object is |
|
|
1594 | destroyed (you can use a barrier to make sure the unmap has finished, |
|
|
1595 | before using the buffer in a kernel), but you can also enqueue an unmap |
|
|
1596 | operation manually. |
|
|
1597 | |
|
|
1598 | =over 4 |
|
|
1599 | |
|
|
1600 | =item $mapped_buffer = $queue->map_buffer ($buf, $blocking=1, $map_flags=OpenCL::MAP_READ|OpenCL::MAP_WRITE, $offset=0, $size=undef, $wait_events...) |
|
|
1601 | |
|
|
1602 | Maps the given buffer into host memory and returns an |
|
|
1603 | C<OpenCL::MappedBuffer> object. If C<$size> is specified as undef, then |
|
|
1604 | the map will extend to the end of the buffer. |
|
|
1605 | |
|
|
1606 | map_flags: OpenCL::MAP_READ, OpenCL::MAP_WRITE, OpenCL::MAP_WRITE_INVALIDATE_REGION. |
|
|
1607 | |
|
|
1608 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueMapBuffer.html> |
|
|
1609 | |
|
|
1610 | Example: map the buffer $buf fully and replace the first 4 bytes by "abcd", then unmap. |
|
|
1611 | |
|
|
1612 | { |
|
|
1613 | my $mapped = $queue->map_buffer ($buf, 1, OpenCL::MAP_WRITE); |
|
|
1614 | substr $$mapped, 0, 4, "abcd"; |
|
|
1615 | } # asynchronously unmap because $mapped is destroyed |
|
|
1616 | |
|
|
1617 | =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...) |
|
|
1618 | |
|
|
1619 | Maps the given image area into host memory and return an |
|
|
1620 | C<OpenCL::MappedImage> object. |
|
|
1621 | |
|
|
1622 | If any of C<$width>, C<$height> and/or C<$depth> are C<undef> then they |
|
|
1623 | will be replaced by the maximum possible value. |
|
|
1624 | |
|
|
1625 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueMapImage.html> |
|
|
1626 | |
|
|
1627 | Example: map an image (with OpenCL::UNSIGNED_INT8 channel type) and set |
|
|
1628 | the first channel of the leftmost column to 5, then explicitly unmap |
|
|
1629 | it. You are not necessarily meant to do it this way, this example just |
|
|
1630 | shows you the accessors to use :) |
|
|
1631 | |
|
|
1632 | my $mapped = $queue->map_image ($image, 1, OpenCL::MAP_WRITE); |
|
|
1633 | |
|
|
1634 | $mapped->write ($_ * $mapped->row_pitch, pack "C", 5) |
|
|
1635 | for 0 .. $mapped->height - 1; |
|
|
1636 | |
|
|
1637 | $mapped->unmap;. |
|
|
1638 | $mapped->wait; # only needed for out of order queues normally |
|
|
1639 | |
|
|
1640 | =item $ev = $queue->unmap ($mapped, $wait_events...) |
|
|
1641 | |
|
|
1642 | Unmaps the data from host memory. You must not call any methods that |
|
|
1643 | modify the data, or modify the data scalar directly, after calling this |
|
|
1644 | method. |
|
|
1645 | |
|
|
1646 | The mapped event object will always be passed as part of the |
|
|
1647 | $wait_events. The mapped event object will be replaced by the new event |
|
|
1648 | object that this request creates. |
1033 | |
1649 | |
1034 | =back |
1650 | =back |
1035 | |
1651 | |
1036 | =head2 THE OpenCL::Memory CLASS |
1652 | =head2 THE OpenCL::Memory CLASS |
1037 | |
1653 | |
… | |
… | |
1044 | |
1660 | |
1045 | See C<< $platform->info >> for details. |
1661 | See C<< $platform->info >> for details. |
1046 | |
1662 | |
1047 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetMemObjectInfo.html> |
1663 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetMemObjectInfo.html> |
1048 | |
1664 | |
|
|
1665 | =item $memory->destructor_callback ($cb->()) |
|
|
1666 | |
|
|
1667 | Sets a callback that will be invoked after the memory object is destructed. |
|
|
1668 | |
|
|
1669 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clSetMemObjectDestructorCallback.html> |
|
|
1670 | |
1049 | =for gengetinfo begin mem |
1671 | =for gengetinfo begin mem |
1050 | |
1672 | |
1051 | =item $mem_object_type = $mem->type |
1673 | =item $mem_object_type = $mem->type |
1052 | |
1674 | |
1053 | Calls C<clGetMemObjectInfo> with C<CL_MEM_TYPE> and returns the result. |
1675 | Calls C<clGetMemObjectInfo> with C<OpenCL::MEM_TYPE> and returns the result. |
1054 | |
1676 | |
1055 | =item $mem_flags = $mem->flags |
1677 | =item $mem_flags = $mem->flags |
1056 | |
1678 | |
1057 | Calls C<clGetMemObjectInfo> with C<CL_MEM_FLAGS> and returns the result. |
1679 | Calls C<clGetMemObjectInfo> with C<OpenCL::MEM_FLAGS> and returns the result. |
1058 | |
1680 | |
1059 | =item $int = $mem->size |
1681 | =item $int = $mem->size |
1060 | |
1682 | |
1061 | Calls C<clGetMemObjectInfo> with C<CL_MEM_SIZE> and returns the result. |
1683 | Calls C<clGetMemObjectInfo> with C<OpenCL::MEM_SIZE> and returns the result. |
1062 | |
1684 | |
1063 | =item $ptr_value = $mem->host_ptr |
1685 | =item $ptr_value = $mem->host_ptr |
1064 | |
1686 | |
1065 | Calls C<clGetMemObjectInfo> with C<CL_MEM_HOST_PTR> and returns the result. |
1687 | Calls C<clGetMemObjectInfo> with C<OpenCL::MEM_HOST_PTR> and returns the result. |
1066 | |
1688 | |
1067 | =item $uint = $mem->map_count |
1689 | =item $uint = $mem->map_count |
1068 | |
1690 | |
1069 | Calls C<clGetMemObjectInfo> with C<CL_MEM_MAP_COUNT> and returns the result. |
1691 | Calls C<clGetMemObjectInfo> with C<OpenCL::MEM_MAP_COUNT> and returns the result. |
1070 | |
1692 | |
1071 | =item $uint = $mem->reference_count |
1693 | =item $uint = $mem->reference_count |
1072 | |
1694 | |
1073 | Calls C<clGetMemObjectInfo> with C<CL_MEM_REFERENCE_COUNT> and returns the result. |
1695 | Calls C<clGetMemObjectInfo> with C<OpenCL::MEM_REFERENCE_COUNT> and returns the result. |
1074 | |
1696 | |
1075 | =item $ctx = $mem->context |
1697 | =item $ctx = $mem->context |
1076 | |
1698 | |
1077 | Calls C<clGetMemObjectInfo> with C<CL_MEM_CONTEXT> and returns the result. |
1699 | Calls C<clGetMemObjectInfo> with C<OpenCL::MEM_CONTEXT> and returns the result. |
1078 | |
1700 | |
1079 | =item $mem = $mem->associated_memobject |
1701 | =item $mem = $mem->associated_memobject |
1080 | |
1702 | |
1081 | Calls C<clGetMemObjectInfo> with C<CL_MEM_ASSOCIATED_MEMOBJECT> and returns the result. |
1703 | Calls C<clGetMemObjectInfo> with C<OpenCL::MEM_ASSOCIATED_MEMOBJECT> and returns the result. |
1082 | |
1704 | |
1083 | =item $int = $mem->offset |
1705 | =item $int = $mem->offset |
1084 | |
1706 | |
1085 | Calls C<clGetMemObjectInfo> with C<CL_MEM_OFFSET> and returns the result. |
1707 | Calls C<clGetMemObjectInfo> with C<OpenCL::MEM_OFFSET> and returns the result. |
1086 | |
1708 | |
1087 | =for gengetinfo end mem |
1709 | =for gengetinfo end mem |
1088 | |
1710 | |
1089 | =item ($type, $name) = $mem->gl_object_info |
1711 | =item ($type, $name) = $mem->gl_object_info |
1090 | |
1712 | |
… | |
… | |
1110 | =over 4 |
1732 | =over 4 |
1111 | |
1733 | |
1112 | =item $subbuf = $buf_obj->sub_buffer_region ($flags, $origin, $size) |
1734 | =item $subbuf = $buf_obj->sub_buffer_region ($flags, $origin, $size) |
1113 | |
1735 | |
1114 | Creates an OpenCL::Buffer objects from this buffer and returns it. The |
1736 | Creates an OpenCL::Buffer objects from this buffer and returns it. The |
1115 | C<buffer_create_type> is assumed to be C<CL_BUFFER_CREATE_TYPE_REGION>. |
1737 | C<buffer_create_type> is assumed to be C<OpenCL::BUFFER_CREATE_TYPE_REGION>. |
1116 | |
1738 | |
1117 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateSubBuffer.html> |
1739 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateSubBuffer.html> |
1118 | |
1740 | |
1119 | =back |
1741 | =back |
1120 | |
1742 | |
1121 | =head2 THE OpenCL::Image CLASS |
1743 | =head2 THE OpenCL::Image CLASS |
1122 | |
1744 | |
1123 | This is the superclass of all image objects - OpenCL::Image2D and OpenCL::Image3D. |
1745 | This is the superclass of all image objects - OpenCL::Image1D, |
|
|
1746 | OpenCL::Image1DArray, OpenCL::Image1DBuffer, OpenCL::Image2D, |
|
|
1747 | OpenCL::Image2DArray and OpenCL::Image3D. |
1124 | |
1748 | |
1125 | =over 4 |
1749 | =over 4 |
1126 | |
1750 | |
1127 | =item $packed_value = $ev->image_info ($name) |
1751 | =item $packed_value = $image->image_info ($name) |
1128 | |
1752 | |
1129 | See C<< $platform->info >> for details. |
1753 | See C<< $platform->info >> for details. |
1130 | |
1754 | |
1131 | The reason this method is not called C<info> is that there already is an |
1755 | The reason this method is not called C<info> is that there already is an |
1132 | C<< ->info >> method inherited from C<OpenCL::Memory>. |
1756 | C<< ->info >> method inherited from C<OpenCL::Memory>. |
1133 | |
1757 | |
1134 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetImageInfo.html> |
1758 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetImageInfo.html> |
1135 | |
1759 | |
|
|
1760 | =item ($channel_order, $channel_data_type) = $image->format |
|
|
1761 | |
|
|
1762 | Returns the channel order and type used to create the image by calling |
|
|
1763 | C<clGetImageInfo> with C<OpenCL::IMAGE_FORMAT>. |
|
|
1764 | |
1136 | =for gengetinfo begin image |
1765 | =for gengetinfo begin image |
1137 | |
1766 | |
1138 | =item $int = $image->element_size |
1767 | =item $int = $image->element_size |
1139 | |
1768 | |
1140 | Calls C<clGetImageInfo> with C<CL_IMAGE_ELEMENT_SIZE> and returns the result. |
1769 | Calls C<clGetImageInfo> with C<OpenCL::IMAGE_ELEMENT_SIZE> and returns the result. |
1141 | |
1770 | |
1142 | =item $int = $image->row_pitch |
1771 | =item $int = $image->row_pitch |
1143 | |
1772 | |
1144 | Calls C<clGetImageInfo> with C<CL_IMAGE_ROW_PITCH> and returns the result. |
1773 | Calls C<clGetImageInfo> with C<OpenCL::IMAGE_ROW_PITCH> and returns the result. |
1145 | |
1774 | |
1146 | =item $int = $image->slice_pitch |
1775 | =item $int = $image->slice_pitch |
1147 | |
1776 | |
1148 | Calls C<clGetImageInfo> with C<CL_IMAGE_SLICE_PITCH> and returns the result. |
1777 | Calls C<clGetImageInfo> with C<OpenCL::IMAGE_SLICE_PITCH> and returns the result. |
1149 | |
1778 | |
1150 | =item $int = $image->width |
1779 | =item $int = $image->width |
1151 | |
1780 | |
1152 | Calls C<clGetImageInfo> with C<CL_IMAGE_WIDTH> and returns the result. |
1781 | Calls C<clGetImageInfo> with C<OpenCL::IMAGE_WIDTH> and returns the result. |
1153 | |
1782 | |
1154 | =item $int = $image->height |
1783 | =item $int = $image->height |
1155 | |
1784 | |
1156 | Calls C<clGetImageInfo> with C<CL_IMAGE_HEIGHT> and returns the result. |
1785 | Calls C<clGetImageInfo> with C<OpenCL::IMAGE_HEIGHT> and returns the result. |
1157 | |
1786 | |
1158 | =item $int = $image->depth |
1787 | =item $int = $image->depth |
1159 | |
1788 | |
1160 | Calls C<clGetImageInfo> with C<CL_IMAGE_DEPTH> and returns the result. |
1789 | Calls C<clGetImageInfo> with C<OpenCL::IMAGE_DEPTH> and returns the result. |
1161 | |
1790 | |
1162 | =for gengetinfo end image |
1791 | =for gengetinfo end image |
1163 | |
1792 | |
1164 | =for gengetinfo begin gl_texture |
1793 | =for gengetinfo begin gl_texture |
1165 | |
1794 | |
1166 | =item $GLenum = $gl_texture->target |
1795 | =item $GLenum = $gl_texture->target |
1167 | |
1796 | |
1168 | Calls C<clGetGLTextureInfo> with C<CL_GL_TEXTURE_TARGET> and returns the result. |
1797 | Calls C<clGetGLTextureInfo> with C<OpenCL::GL_TEXTURE_TARGET> and returns the result. |
1169 | |
1798 | |
1170 | =item $GLint = $gl_texture->gl_mipmap_level |
1799 | =item $GLint = $gl_texture->gl_mipmap_level |
1171 | |
1800 | |
1172 | Calls C<clGetGLTextureInfo> with C<CL_GL_MIPMAP_LEVEL> and returns the result. |
1801 | Calls C<clGetGLTextureInfo> with C<OpenCL::GL_MIPMAP_LEVEL> and returns the result. |
1173 | |
1802 | |
1174 | =for gengetinfo end gl_texture |
1803 | =for gengetinfo end gl_texture |
1175 | |
1804 | |
1176 | =back |
1805 | =back |
1177 | |
1806 | |
… | |
… | |
1187 | |
1816 | |
1188 | =for gengetinfo begin sampler |
1817 | =for gengetinfo begin sampler |
1189 | |
1818 | |
1190 | =item $uint = $sampler->reference_count |
1819 | =item $uint = $sampler->reference_count |
1191 | |
1820 | |
1192 | Calls C<clGetSamplerInfo> with C<CL_SAMPLER_REFERENCE_COUNT> and returns the result. |
1821 | Calls C<clGetSamplerInfo> with C<OpenCL::SAMPLER_REFERENCE_COUNT> and returns the result. |
1193 | |
1822 | |
1194 | =item $ctx = $sampler->context |
1823 | =item $ctx = $sampler->context |
1195 | |
1824 | |
1196 | Calls C<clGetSamplerInfo> with C<CL_SAMPLER_CONTEXT> and returns the result. |
1825 | Calls C<clGetSamplerInfo> with C<OpenCL::SAMPLER_CONTEXT> and returns the result. |
1197 | |
1826 | |
1198 | =item $addressing_mode = $sampler->normalized_coords |
1827 | =item $addressing_mode = $sampler->normalized_coords |
1199 | |
1828 | |
1200 | Calls C<clGetSamplerInfo> with C<CL_SAMPLER_NORMALIZED_COORDS> and returns the result. |
1829 | Calls C<clGetSamplerInfo> with C<OpenCL::SAMPLER_NORMALIZED_COORDS> and returns the result. |
1201 | |
1830 | |
1202 | =item $filter_mode = $sampler->addressing_mode |
1831 | =item $filter_mode = $sampler->addressing_mode |
1203 | |
1832 | |
1204 | Calls C<clGetSamplerInfo> with C<CL_SAMPLER_ADDRESSING_MODE> and returns the result. |
1833 | Calls C<clGetSamplerInfo> with C<OpenCL::SAMPLER_ADDRESSING_MODE> and returns the result. |
1205 | |
1834 | |
1206 | =item $boolean = $sampler->filter_mode |
1835 | =item $boolean = $sampler->filter_mode |
1207 | |
1836 | |
1208 | Calls C<clGetSamplerInfo> with C<CL_SAMPLER_FILTER_MODE> and returns the result. |
1837 | Calls C<clGetSamplerInfo> with C<OpenCL::SAMPLER_FILTER_MODE> and returns the result. |
1209 | |
1838 | |
1210 | =for gengetinfo end sampler |
1839 | =for gengetinfo end sampler |
1211 | |
1840 | |
1212 | =back |
1841 | =back |
1213 | |
1842 | |
1214 | =head2 THE OpenCL::Program CLASS |
1843 | =head2 THE OpenCL::Program CLASS |
1215 | |
1844 | |
1216 | =over 4 |
1845 | =over 4 |
1217 | |
1846 | |
1218 | =item $program->build ($device, $options = "") |
1847 | =item $program->build (\@devices = undef, $options = "", $cb->($program) = undef) |
1219 | |
1848 | |
1220 | Tries to build the program with the givne options. |
1849 | Tries to build the program with the given options. See also the |
|
|
1850 | C<$ctx->build> convenience function. |
|
|
1851 | |
|
|
1852 | If a callback is specified, then it will be called when compilation is |
|
|
1853 | finished. Note that many OpenCL implementations block your program while |
|
|
1854 | compiling whether you use a callback or not. See C<build_async> if you |
|
|
1855 | want to make sure the build is done in the background. |
|
|
1856 | |
|
|
1857 | Note that some OpenCL implementations act up badly, and don't call the |
|
|
1858 | callback in some error cases (but call it in others). This implementation |
|
|
1859 | assumes the callback will always be called, and leaks memory if this is |
|
|
1860 | not so. So best make sure you don't pass in invalid values. |
|
|
1861 | |
|
|
1862 | Some implementations fail with C<OpenCL::INVALID_BINARY> when the |
|
|
1863 | compilation state is successful but some later stage fails. |
|
|
1864 | |
|
|
1865 | options: C<-D name>, C<-D name=definition>, C<-I dir>, |
|
|
1866 | C<-cl-single-precision-constant>, C<-cl-denorms-are-zero>, |
|
|
1867 | C<-cl-fp32-correctly-rounded-divide-sqrt>, C<-cl-opt-disable>, |
|
|
1868 | C<-cl-mad-enable>, C<-cl-no-signed-zeros>, C<-cl-unsafe-math-optimizations>, |
|
|
1869 | C<-cl-finite-math-only>, C<-cl-fast-relaxed-math>, |
|
|
1870 | C<-w>, C<-Werror>, C<-cl-std=CL1.1/CL1.2>, C<-cl-kernel-arg-info>, |
|
|
1871 | C<-create-library>, C<-enable-link-options>. |
|
|
1872 | |
|
|
1873 | build_status: OpenCL::BUILD_SUCCESS, OpenCL::BUILD_NONE, |
|
|
1874 | OpenCL::BUILD_ERROR, OpenCL::BUILD_IN_PROGRESS. |
1221 | |
1875 | |
1222 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clBuildProgram.html> |
1876 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clBuildProgram.html> |
|
|
1877 | |
|
|
1878 | =item $program->build_async (\@devices = undef, $options = "", $cb->($program) = undef) |
|
|
1879 | |
|
|
1880 | Similar to C<< ->build >>, except it starts a thread, and never fails (you |
|
|
1881 | need to check the compilation status form the callback, or by polling). |
|
|
1882 | |
|
|
1883 | =item $program->compile (\@devices = undef, $options = "", \%headers = undef, $cb->($program) = undef) |
|
|
1884 | |
|
|
1885 | Compiles the given program for the given devices (or all devices if |
|
|
1886 | undef). If C<$headers> is given, it must be a hashref with include name => |
|
|
1887 | OpenCL::Program pairs. |
|
|
1888 | |
|
|
1889 | L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clCompileProgram.html> |
1223 | |
1890 | |
1224 | =item $packed_value = $program->build_info ($device, $name) |
1891 | =item $packed_value = $program->build_info ($device, $name) |
1225 | |
1892 | |
1226 | Similar to C<< $platform->info >>, but returns build info for a previous |
1893 | Similar to C<< $platform->info >>, but returns build info for a previous |
1227 | build attempt for the given device. |
1894 | build attempt for the given device. |
1228 | |
1895 | |
|
|
1896 | binary_type: OpenCL::PROGRAM_BINARY_TYPE_NONE, |
|
|
1897 | OpenCL::PROGRAM_BINARY_TYPE_COMPILED_OBJECT, |
|
|
1898 | OpenCL::PROGRAM_BINARY_TYPE_LIBRARY, |
|
|
1899 | OpenCL::PROGRAM_BINARY_TYPE_EXECUTABLE. |
|
|
1900 | |
1229 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetBuildInfo.html> |
1901 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetBuildInfo.html> |
1230 | |
1902 | |
1231 | =item $kernel = $program->kernel ($function_name) |
1903 | =item $kernel = $program->kernel ($function_name) |
1232 | |
1904 | |
1233 | Creates an OpenCL::Kernel object out of the named C<__kernel> function in |
1905 | Creates an OpenCL::Kernel object out of the named C<__kernel> function in |
1234 | the program. |
1906 | the program. |
1235 | |
1907 | |
1236 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateKernel.html> |
1908 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateKernel.html> |
1237 | |
1909 | |
|
|
1910 | =item @kernels = $program->kernels_in_program |
|
|
1911 | |
|
|
1912 | Returns all kernels successfully compiled for all devices in program. |
|
|
1913 | |
|
|
1914 | http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateKernelsInProgram.html |
|
|
1915 | |
1238 | =for gengetinfo begin program_build |
1916 | =for gengetinfo begin program_build |
1239 | |
1917 | |
1240 | =item $build_status = $program->build_status ($device) |
1918 | =item $build_status = $program->build_status ($device) |
1241 | |
1919 | |
1242 | Calls C<clGetProgramBuildInfo> with C<CL_PROGRAM_BUILD_STATUS> and returns the result. |
1920 | Calls C<clGetProgramBuildInfo> with C<OpenCL::PROGRAM_BUILD_STATUS> and returns the result. |
1243 | |
1921 | |
1244 | =item $string = $program->build_options ($device) |
1922 | =item $string = $program->build_options ($device) |
1245 | |
1923 | |
1246 | Calls C<clGetProgramBuildInfo> with C<CL_PROGRAM_BUILD_OPTIONS> and returns the result. |
1924 | Calls C<clGetProgramBuildInfo> with C<OpenCL::PROGRAM_BUILD_OPTIONS> and returns the result. |
1247 | |
1925 | |
1248 | =item $string = $program->build_log ($device) |
1926 | =item $string = $program->build_log ($device) |
1249 | |
1927 | |
1250 | Calls C<clGetProgramBuildInfo> with C<CL_PROGRAM_BUILD_LOG> and returns the result. |
1928 | Calls C<clGetProgramBuildInfo> with C<OpenCL::PROGRAM_BUILD_LOG> and returns the result. |
|
|
1929 | |
|
|
1930 | =item $binary_type = $program->binary_type ($device) |
|
|
1931 | |
|
|
1932 | Calls C<clGetProgramBuildInfo> with C<OpenCL::PROGRAM_BINARY_TYPE> and returns the result. |
1251 | |
1933 | |
1252 | =for gengetinfo end program_build |
1934 | =for gengetinfo end program_build |
1253 | |
1935 | |
1254 | =item $packed_value = $program->info ($name) |
1936 | =item $packed_value = $program->info ($name) |
1255 | |
1937 | |
… | |
… | |
1259 | |
1941 | |
1260 | =for gengetinfo begin program |
1942 | =for gengetinfo begin program |
1261 | |
1943 | |
1262 | =item $uint = $program->reference_count |
1944 | =item $uint = $program->reference_count |
1263 | |
1945 | |
1264 | Calls C<clGetProgramInfo> with C<CL_PROGRAM_REFERENCE_COUNT> and returns the result. |
1946 | Calls C<clGetProgramInfo> with C<OpenCL::PROGRAM_REFERENCE_COUNT> and returns the result. |
1265 | |
1947 | |
1266 | =item $ctx = $program->context |
1948 | =item $ctx = $program->context |
1267 | |
1949 | |
1268 | Calls C<clGetProgramInfo> with C<CL_PROGRAM_CONTEXT> and returns the result. |
1950 | Calls C<clGetProgramInfo> with C<OpenCL::PROGRAM_CONTEXT> and returns the result. |
1269 | |
1951 | |
1270 | =item $uint = $program->num_devices |
1952 | =item $uint = $program->num_devices |
1271 | |
1953 | |
1272 | Calls C<clGetProgramInfo> with C<CL_PROGRAM_NUM_DEVICES> and returns the result. |
1954 | Calls C<clGetProgramInfo> with C<OpenCL::PROGRAM_NUM_DEVICES> and returns the result. |
1273 | |
1955 | |
1274 | =item @devices = $program->devices |
1956 | =item @devices = $program->devices |
1275 | |
1957 | |
1276 | Calls C<clGetProgramInfo> with C<CL_PROGRAM_DEVICES> and returns the result. |
1958 | Calls C<clGetProgramInfo> with C<OpenCL::PROGRAM_DEVICES> and returns the result. |
1277 | |
1959 | |
1278 | =item $string = $program->source |
1960 | =item $string = $program->source |
1279 | |
1961 | |
1280 | Calls C<clGetProgramInfo> with C<CL_PROGRAM_SOURCE> and returns the result. |
1962 | Calls C<clGetProgramInfo> with C<OpenCL::PROGRAM_SOURCE> and returns the result. |
1281 | |
1963 | |
1282 | =item @ints = $program->binary_sizes |
1964 | =item @ints = $program->binary_sizes |
1283 | |
1965 | |
1284 | Calls C<clGetProgramInfo> with C<CL_PROGRAM_BINARY_SIZES> and returns the result. |
1966 | Calls C<clGetProgramInfo> with C<OpenCL::PROGRAM_BINARY_SIZES> and returns the result. |
1285 | |
1967 | |
1286 | =for gengetinfo end program |
1968 | =for gengetinfo end program |
1287 | |
1969 | |
1288 | =item @blobs = $program->binaries |
1970 | =item @blobs = $program->binaries |
1289 | |
1971 | |
… | |
… | |
1310 | |
1992 | |
1311 | =for gengetinfo begin kernel |
1993 | =for gengetinfo begin kernel |
1312 | |
1994 | |
1313 | =item $string = $kernel->function_name |
1995 | =item $string = $kernel->function_name |
1314 | |
1996 | |
1315 | Calls C<clGetKernelInfo> with C<CL_KERNEL_FUNCTION_NAME> and returns the result. |
1997 | Calls C<clGetKernelInfo> with C<OpenCL::KERNEL_FUNCTION_NAME> and returns the result. |
1316 | |
1998 | |
1317 | =item $uint = $kernel->num_args |
1999 | =item $uint = $kernel->num_args |
1318 | |
2000 | |
1319 | Calls C<clGetKernelInfo> with C<CL_KERNEL_NUM_ARGS> and returns the result. |
2001 | Calls C<clGetKernelInfo> with C<OpenCL::KERNEL_NUM_ARGS> and returns the result. |
1320 | |
2002 | |
1321 | =item $uint = $kernel->reference_count |
2003 | =item $uint = $kernel->reference_count |
1322 | |
2004 | |
1323 | Calls C<clGetKernelInfo> with C<CL_KERNEL_REFERENCE_COUNT> and returns the result. |
2005 | Calls C<clGetKernelInfo> with C<OpenCL::KERNEL_REFERENCE_COUNT> and returns the result. |
1324 | |
2006 | |
1325 | =item $ctx = $kernel->context |
2007 | =item $ctx = $kernel->context |
1326 | |
2008 | |
1327 | Calls C<clGetKernelInfo> with C<CL_KERNEL_CONTEXT> and returns the result. |
2009 | Calls C<clGetKernelInfo> with C<OpenCL::KERNEL_CONTEXT> and returns the result. |
1328 | |
2010 | |
1329 | =item $program = $kernel->program |
2011 | =item $program = $kernel->program |
1330 | |
2012 | |
1331 | Calls C<clGetKernelInfo> with C<CL_KERNEL_PROGRAM> and returns the result. |
2013 | Calls C<clGetKernelInfo> with C<OpenCL::KERNEL_PROGRAM> and returns the result. |
1332 | |
2014 | |
1333 | =for gengetinfo end kernel |
2015 | =for gengetinfo end kernel |
1334 | |
2016 | |
1335 | =item $packed_value = $kernel->work_group_info ($device, $name) |
2017 | =item $packed_value = $kernel->work_group_info ($device, $name) |
|
|
2018 | |
|
|
2019 | See C<< $platform->info >> for details. |
|
|
2020 | |
|
|
2021 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetKernelWorkGroupInfo.html> |
|
|
2022 | |
|
|
2023 | =for gengetinfo begin kernel_work_group |
|
|
2024 | |
|
|
2025 | =item $int = $kernel->work_group_size ($device) |
|
|
2026 | |
|
|
2027 | Calls C<clGetKernelWorkGroupInfo> with C<OpenCL::KERNEL_WORK_GROUP_SIZE> and returns the result. |
|
|
2028 | |
|
|
2029 | =item @ints = $kernel->compile_work_group_size ($device) |
|
|
2030 | |
|
|
2031 | Calls C<clGetKernelWorkGroupInfo> with C<OpenCL::KERNEL_COMPILE_WORK_GROUP_SIZE> and returns the result. |
|
|
2032 | |
|
|
2033 | =item $ulong = $kernel->local_mem_size ($device) |
|
|
2034 | |
|
|
2035 | Calls C<clGetKernelWorkGroupInfo> with C<OpenCL::KERNEL_LOCAL_MEM_SIZE> and returns the result. |
|
|
2036 | |
|
|
2037 | =item $int = $kernel->preferred_work_group_size_multiple ($device) |
|
|
2038 | |
|
|
2039 | Calls C<clGetKernelWorkGroupInfo> with C<OpenCL::KERNEL_PREFERRED_WORK_GROUP_SIZE_MULTIPLE> and returns the result. |
|
|
2040 | |
|
|
2041 | =item $ulong = $kernel->private_mem_size ($device) |
|
|
2042 | |
|
|
2043 | Calls C<clGetKernelWorkGroupInfo> with C<OpenCL::KERNEL_PRIVATE_MEM_SIZE> and returns the result. |
|
|
2044 | |
|
|
2045 | =for gengetinfo end kernel_work_group |
|
|
2046 | |
|
|
2047 | =item $packed_value = $kernel->arg_info ($idx, $name) |
|
|
2048 | |
|
|
2049 | See C<< $platform->info >> for details. |
|
|
2050 | |
|
|
2051 | L<http://www.khronos.org/registry/cl/sdk/1.2/docs/man/xhtml/clGetKernelArgInfo.html> |
|
|
2052 | |
|
|
2053 | =for gengetinfo begin kernel_arg |
|
|
2054 | |
|
|
2055 | =item $kernel_arg_address_qualifier = $kernel->arg_address_qualifier ($idx) |
|
|
2056 | |
|
|
2057 | Calls C<clGetKernelArgInfo> with C<OpenCL::KERNEL_ARG_ADDRESS_QUALIFIER> and returns the result. |
|
|
2058 | |
|
|
2059 | =item $kernel_arg_access_qualifier = $kernel->arg_access_qualifier ($idx) |
|
|
2060 | |
|
|
2061 | Calls C<clGetKernelArgInfo> with C<OpenCL::KERNEL_ARG_ACCESS_QUALIFIER> and returns the result. |
|
|
2062 | |
|
|
2063 | =item $string = $kernel->arg_type_name ($idx) |
|
|
2064 | |
|
|
2065 | Calls C<clGetKernelArgInfo> with C<OpenCL::KERNEL_ARG_TYPE_NAME> and returns the result. |
|
|
2066 | |
|
|
2067 | =item $kernel_arg_type_qualifier = $kernel->arg_type_qualifier ($idx) |
|
|
2068 | |
|
|
2069 | Calls C<clGetKernelArgInfo> with C<OpenCL::KERNEL_ARG_TYPE_QUALIFIER> and returns the result. |
|
|
2070 | |
|
|
2071 | =item $string = $kernel->arg_name ($idx) |
|
|
2072 | |
|
|
2073 | Calls C<clGetKernelArgInfo> with C<OpenCL::KERNEL_ARG_NAME> and returns the result. |
|
|
2074 | |
|
|
2075 | =for gengetinfo end kernel_arg |
|
|
2076 | |
|
|
2077 | =item $kernel->setf ($format, ...) |
|
|
2078 | |
|
|
2079 | Sets the arguments of a kernel. Since OpenCL 1.1 doesn't have a generic |
|
|
2080 | way to set arguments (and with OpenCL 1.2 it might be rather slow), you |
|
|
2081 | need to specify a format argument, much as with C<printf>, to tell OpenCL |
|
|
2082 | what type of argument it is. |
|
|
2083 | |
|
|
2084 | The format arguments are single letters: |
|
|
2085 | |
|
|
2086 | c char |
|
|
2087 | C unsigned char |
|
|
2088 | s short |
|
|
2089 | S unsigned short |
|
|
2090 | i int |
|
|
2091 | I unsigned int |
|
|
2092 | l long |
|
|
2093 | L unsigned long |
|
|
2094 | |
|
|
2095 | h half float (0..65535) |
|
|
2096 | f float |
|
|
2097 | d double |
|
|
2098 | |
|
|
2099 | z local (octet size) |
|
|
2100 | |
|
|
2101 | m memory object (buffer or image) |
|
|
2102 | a sampler |
|
|
2103 | e event |
|
|
2104 | |
|
|
2105 | Space characters in the format string are ignored. |
|
|
2106 | |
|
|
2107 | Example: set the arguments for a kernel that expects an int, two floats, a buffer and an image. |
|
|
2108 | |
|
|
2109 | $kernel->setf ("i ff mm", 5, 0.5, 3, $buffer, $image); |
|
|
2110 | |
|
|
2111 | =item $kernel->set_TYPE ($index, $value) |
|
|
2112 | |
|
|
2113 | =item $kernel->set_char ($index, $value) |
|
|
2114 | |
|
|
2115 | =item $kernel->set_uchar ($index, $value) |
|
|
2116 | |
|
|
2117 | =item $kernel->set_short ($index, $value) |
|
|
2118 | |
|
|
2119 | =item $kernel->set_ushort ($index, $value) |
|
|
2120 | |
|
|
2121 | =item $kernel->set_int ($index, $value) |
|
|
2122 | |
|
|
2123 | =item $kernel->set_uint ($index, $value) |
|
|
2124 | |
|
|
2125 | =item $kernel->set_long ($index, $value) |
|
|
2126 | |
|
|
2127 | =item $kernel->set_ulong ($index, $value) |
|
|
2128 | |
|
|
2129 | =item $kernel->set_half ($index, $value) |
|
|
2130 | |
|
|
2131 | =item $kernel->set_float ($index, $value) |
|
|
2132 | |
|
|
2133 | =item $kernel->set_double ($index, $value) |
|
|
2134 | |
|
|
2135 | =item $kernel->set_memory ($index, $value) |
|
|
2136 | |
|
|
2137 | =item $kernel->set_buffer ($index, $value) |
|
|
2138 | |
|
|
2139 | =item $kernel->set_image ($index, $value) |
|
|
2140 | |
|
|
2141 | =item $kernel->set_sampler ($index, $value) |
|
|
2142 | |
|
|
2143 | =item $kernel->set_local ($index, $value) |
|
|
2144 | |
|
|
2145 | =item $kernel->set_event ($index, $value) |
|
|
2146 | |
|
|
2147 | This is a family of methods to set the kernel argument with the number |
|
|
2148 | C<$index> to the give C<$value>. |
|
|
2149 | |
|
|
2150 | Chars and integers (including the half type) are specified as integers, |
|
|
2151 | float and double as floating point values, memory/buffer/image must be |
|
|
2152 | an object of that type or C<undef>, local-memory arguments are set by |
|
|
2153 | specifying the size, and sampler and event must be objects of that type. |
|
|
2154 | |
|
|
2155 | Note that C<set_memory> works for all memory objects (all types of buffers |
|
|
2156 | and images) - the main purpose of the more specific C<set_TYPE> functions |
|
|
2157 | is type checking. |
|
|
2158 | |
|
|
2159 | Setting an argument for a kernel does NOT keep a reference to the object - |
|
|
2160 | for example, if you set an argument to some image object, free the image, |
|
|
2161 | and call the kernel, you will run into undefined behaviour. |
|
|
2162 | |
|
|
2163 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clSetKernelArg.html> |
|
|
2164 | |
|
|
2165 | =back |
|
|
2166 | |
|
|
2167 | =head2 THE OpenCL::Event CLASS |
|
|
2168 | |
|
|
2169 | This is the superclass for all event objects (including OpenCL::UserEvent |
|
|
2170 | objects). |
|
|
2171 | |
|
|
2172 | =over 4 |
|
|
2173 | |
|
|
2174 | =item $ev->wait |
|
|
2175 | |
|
|
2176 | Waits for the event to complete. |
|
|
2177 | |
|
|
2178 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clWaitForEvents.html> |
|
|
2179 | |
|
|
2180 | =item $ev->cb ($exec_callback_type, $callback->($event, $event_command_exec_status)) |
|
|
2181 | |
|
|
2182 | Adds a callback to the callback stack for the given event type. There is |
|
|
2183 | no way to remove a callback again. |
|
|
2184 | |
|
|
2185 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clSetEventCallback.html> |
|
|
2186 | |
|
|
2187 | =item $packed_value = $ev->info ($name) |
|
|
2188 | |
|
|
2189 | See C<< $platform->info >> for details. |
|
|
2190 | |
|
|
2191 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetEventInfo.html> |
|
|
2192 | |
|
|
2193 | =for gengetinfo begin event |
|
|
2194 | |
|
|
2195 | =item $queue = $event->command_queue |
|
|
2196 | |
|
|
2197 | Calls C<clGetEventInfo> with C<OpenCL::EVENT_COMMAND_QUEUE> and returns the result. |
|
|
2198 | |
|
|
2199 | =item $command_type = $event->command_type |
|
|
2200 | |
|
|
2201 | Calls C<clGetEventInfo> with C<OpenCL::EVENT_COMMAND_TYPE> and returns the result. |
|
|
2202 | |
|
|
2203 | =item $uint = $event->reference_count |
|
|
2204 | |
|
|
2205 | Calls C<clGetEventInfo> with C<OpenCL::EVENT_REFERENCE_COUNT> and returns the result. |
|
|
2206 | |
|
|
2207 | =item $uint = $event->command_execution_status |
|
|
2208 | |
|
|
2209 | Calls C<clGetEventInfo> with C<OpenCL::EVENT_COMMAND_EXECUTION_STATUS> and returns the result. |
|
|
2210 | |
|
|
2211 | =item $ctx = $event->context |
|
|
2212 | |
|
|
2213 | Calls C<clGetEventInfo> with C<OpenCL::EVENT_CONTEXT> and returns the result. |
|
|
2214 | |
|
|
2215 | =for gengetinfo end event |
|
|
2216 | |
|
|
2217 | =item $packed_value = $ev->profiling_info ($name) |
1336 | |
2218 | |
1337 | See C<< $platform->info >> for details. |
2219 | See C<< $platform->info >> for details. |
1338 | |
2220 | |
1339 | The reason this method is not called C<info> is that there already is an |
2221 | The reason this method is not called C<info> is that there already is an |
1340 | C<< ->info >> method. |
2222 | C<< ->info >> method. |
1341 | |
2223 | |
1342 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetKernelWorkGroupInfo.html> |
|
|
1343 | |
|
|
1344 | =for gengetinfo begin kernel_work_group |
|
|
1345 | |
|
|
1346 | =item $int = $kernel->work_group_size ($device) |
|
|
1347 | |
|
|
1348 | Calls C<clGetKernelWorkGroupInfo> with C<CL_KERNEL_WORK_GROUP_SIZE> and returns the result. |
|
|
1349 | |
|
|
1350 | =item @ints = $kernel->compile_work_group_size ($device) |
|
|
1351 | |
|
|
1352 | Calls C<clGetKernelWorkGroupInfo> with C<CL_KERNEL_COMPILE_WORK_GROUP_SIZE> and returns the result. |
|
|
1353 | |
|
|
1354 | =item $ulong = $kernel->local_mem_size ($device) |
|
|
1355 | |
|
|
1356 | Calls C<clGetKernelWorkGroupInfo> with C<CL_KERNEL_LOCAL_MEM_SIZE> and returns the result. |
|
|
1357 | |
|
|
1358 | =item $int = $kernel->preferred_work_group_size_multiple ($device) |
|
|
1359 | |
|
|
1360 | Calls C<clGetKernelWorkGroupInfo> with C<CL_KERNEL_PREFERRED_WORK_GROUP_SIZE_MULTIPLE> and returns the result. |
|
|
1361 | |
|
|
1362 | =item $ulong = $kernel->private_mem_size ($device) |
|
|
1363 | |
|
|
1364 | Calls C<clGetKernelWorkGroupInfo> with C<CL_KERNEL_PRIVATE_MEM_SIZE> and returns the result. |
|
|
1365 | |
|
|
1366 | =for gengetinfo end kernel_work_group |
|
|
1367 | |
|
|
1368 | =item $kernel->set_TYPE ($index, $value) |
|
|
1369 | |
|
|
1370 | This is a family of methods to set the kernel argument with the number C<$index> to the give C<$value>. |
|
|
1371 | |
|
|
1372 | TYPE is one of C<char>, C<uchar>, C<short>, C<ushort>, C<int>, C<uint>, |
|
|
1373 | C<long>, C<ulong>, C<half>, C<float>, C<double>, C<memory>, C<buffer>, |
|
|
1374 | C<image2d>, C<image3d>, C<sampler>, C<local> or C<event>. |
|
|
1375 | |
|
|
1376 | Chars and integers (including the half type) are specified as integers, |
|
|
1377 | float and double as floating point values, memory/buffer/image2d/image3d |
|
|
1378 | must be an object of that type or C<undef>, local-memory arguments are |
|
|
1379 | set by specifying the size, and sampler and event must be objects of that |
|
|
1380 | type. |
|
|
1381 | |
|
|
1382 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clSetKernelArg.html> |
2224 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetProfilingInfo.html> |
|
|
2225 | |
|
|
2226 | =for gengetinfo begin profiling |
|
|
2227 | |
|
|
2228 | =item $ulong = $event->profiling_command_queued |
|
|
2229 | |
|
|
2230 | Calls C<clGetEventProfilingInfo> with C<OpenCL::PROFILING_COMMAND_QUEUED> and returns the result. |
|
|
2231 | |
|
|
2232 | =item $ulong = $event->profiling_command_submit |
|
|
2233 | |
|
|
2234 | Calls C<clGetEventProfilingInfo> with C<OpenCL::PROFILING_COMMAND_SUBMIT> and returns the result. |
|
|
2235 | |
|
|
2236 | =item $ulong = $event->profiling_command_start |
|
|
2237 | |
|
|
2238 | Calls C<clGetEventProfilingInfo> with C<OpenCL::PROFILING_COMMAND_START> and returns the result. |
|
|
2239 | |
|
|
2240 | =item $ulong = $event->profiling_command_end |
|
|
2241 | |
|
|
2242 | Calls C<clGetEventProfilingInfo> with C<OpenCL::PROFILING_COMMAND_END> and returns the result. |
|
|
2243 | |
|
|
2244 | =for gengetinfo end profiling |
1383 | |
2245 | |
1384 | =back |
2246 | =back |
1385 | |
2247 | |
1386 | =head2 THE OpenCL::Event CLASS |
2248 | =head2 THE OpenCL::UserEvent CLASS |
1387 | |
2249 | |
1388 | This is the superclass for all event objects (including OpenCL::UserEvent |
2250 | This is a subclass of OpenCL::Event. |
1389 | objects). |
|
|
1390 | |
2251 | |
1391 | =over 4 |
2252 | =over 4 |
1392 | |
2253 | |
1393 | =item $ev->wait |
2254 | =item $ev->set_status ($execution_status) |
1394 | |
2255 | |
1395 | Waits for the event to complete. |
2256 | Sets the execution status of the user event. Can only be called once, |
|
|
2257 | either with OpenCL::COMPLETE or a negative number as status. |
1396 | |
2258 | |
|
|
2259 | execution_status: OpenCL::COMPLETE or a negative integer. |
|
|
2260 | |
1397 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clWaitForEvents.html> |
2261 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clSetUserEventStatus.html> |
1398 | |
|
|
1399 | =item $packed_value = $ev->info ($name) |
|
|
1400 | |
|
|
1401 | See C<< $platform->info >> for details. |
|
|
1402 | |
|
|
1403 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetEventInfo.html> |
|
|
1404 | |
|
|
1405 | =for gengetinfo begin event |
|
|
1406 | |
|
|
1407 | =item $queue = $event->command_queue |
|
|
1408 | |
|
|
1409 | Calls C<clGetEventInfo> with C<CL_EVENT_COMMAND_QUEUE> and returns the result. |
|
|
1410 | |
|
|
1411 | =item $command_type = $event->command_type |
|
|
1412 | |
|
|
1413 | Calls C<clGetEventInfo> with C<CL_EVENT_COMMAND_TYPE> and returns the result. |
|
|
1414 | |
|
|
1415 | =item $uint = $event->reference_count |
|
|
1416 | |
|
|
1417 | Calls C<clGetEventInfo> with C<CL_EVENT_REFERENCE_COUNT> and returns the result. |
|
|
1418 | |
|
|
1419 | =item $uint = $event->command_execution_status |
|
|
1420 | |
|
|
1421 | Calls C<clGetEventInfo> with C<CL_EVENT_COMMAND_EXECUTION_STATUS> and returns the result. |
|
|
1422 | |
|
|
1423 | =item $ctx = $event->context |
|
|
1424 | |
|
|
1425 | Calls C<clGetEventInfo> with C<CL_EVENT_CONTEXT> and returns the result. |
|
|
1426 | |
|
|
1427 | =for gengetinfo end event |
|
|
1428 | |
|
|
1429 | =item $packed_value = $ev->profiling_info ($name) |
|
|
1430 | |
|
|
1431 | See C<< $platform->info >> for details. |
|
|
1432 | |
|
|
1433 | The reason this method is not called C<info> is that there already is an |
|
|
1434 | C<< ->info >> method. |
|
|
1435 | |
|
|
1436 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clGetProfilingInfo.html> |
|
|
1437 | |
|
|
1438 | =for gengetinfo begin profiling |
|
|
1439 | |
|
|
1440 | =item $ulong = $event->profiling_command_queued |
|
|
1441 | |
|
|
1442 | Calls C<clGetEventProfilingInfo> with C<CL_PROFILING_COMMAND_QUEUED> and returns the result. |
|
|
1443 | |
|
|
1444 | =item $ulong = $event->profiling_command_submit |
|
|
1445 | |
|
|
1446 | Calls C<clGetEventProfilingInfo> with C<CL_PROFILING_COMMAND_SUBMIT> and returns the result. |
|
|
1447 | |
|
|
1448 | =item $ulong = $event->profiling_command_start |
|
|
1449 | |
|
|
1450 | Calls C<clGetEventProfilingInfo> with C<CL_PROFILING_COMMAND_START> and returns the result. |
|
|
1451 | |
|
|
1452 | =item $ulong = $event->profiling_command_end |
|
|
1453 | |
|
|
1454 | Calls C<clGetEventProfilingInfo> with C<CL_PROFILING_COMMAND_END> and returns the result. |
|
|
1455 | |
|
|
1456 | =for gengetinfo end profiling |
|
|
1457 | |
2262 | |
1458 | =back |
2263 | =back |
1459 | |
2264 | |
1460 | =head2 THE OpenCL::UserEvent CLASS |
2265 | =head2 THE OpenCL::Mapped CLASS |
1461 | |
2266 | |
1462 | This is a subclass of OpenCL::Event. |
2267 | This class represents objects mapped into host memory. They are |
|
|
2268 | represented by a blessed string scalar. The string data is the mapped |
|
|
2269 | memory area, that is, if you read or write it, then the mapped object is |
|
|
2270 | accessed directly. |
|
|
2271 | |
|
|
2272 | You must only ever use operations that modify the string in-place - for |
|
|
2273 | example, a C<substr> that doesn't change the length, or maybe a regex that |
|
|
2274 | doesn't change the length. Any other operation might cause the data to be |
|
|
2275 | copied. |
|
|
2276 | |
|
|
2277 | When the object is destroyed it will enqueue an implicit unmap operation |
|
|
2278 | on the queue that was used to create it. |
|
|
2279 | |
|
|
2280 | Keep in mind that you I<need> to unmap (or destroy) mapped objects before |
|
|
2281 | OpenCL sees the changes, even if some implementations don't need this |
|
|
2282 | sometimes. |
|
|
2283 | |
|
|
2284 | Example, replace the first two floats in the mapped buffer by 1 and 2. |
|
|
2285 | |
|
|
2286 | my $mapped = $queue->map_buffer ($buf, ... |
|
|
2287 | $mapped->event->wait; # make sure it's there |
|
|
2288 | |
|
|
2289 | # now replace first 8 bytes by new data, which is exactly 8 bytes long |
|
|
2290 | # we blindly assume device endianness to equal host endianness |
|
|
2291 | # (and of course, we assume iee 754 single precision floats :) |
|
|
2292 | substr $$mapped, 0, 8, pack "f*", 1, 2; |
1463 | |
2293 | |
1464 | =over 4 |
2294 | =over 4 |
1465 | |
2295 | |
1466 | =item $ev->set_status ($execution_status) |
2296 | =item $ev = $mapped->unmap ($wait_events...) |
1467 | |
2297 | |
1468 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clSetUserEventStatus.html> |
2298 | Unmaps the mapped memory object, using the queue originally used to create |
|
|
2299 | it, quite similarly to C<< $queue->unmap ($mapped, ...) >>. |
|
|
2300 | |
|
|
2301 | =item $bool = $mapped->mapped |
|
|
2302 | |
|
|
2303 | Returns whether the object is still mapped - true before an C<unmap> is |
|
|
2304 | enqueued, false afterwards. |
|
|
2305 | |
|
|
2306 | =item $ev = $mapped->event |
|
|
2307 | |
|
|
2308 | Return the event object associated with the mapped object. Initially, this |
|
|
2309 | will be the event object created when mapping the object, and after an |
|
|
2310 | unmap, this will be the event object that the unmap operation created. |
|
|
2311 | |
|
|
2312 | =item $mapped->wait |
|
|
2313 | |
|
|
2314 | Same as C<< $mapped->event->wait >> - makes sure no operations on this |
|
|
2315 | mapped object are outstanding. |
|
|
2316 | |
|
|
2317 | =item $bytes = $mapped->size |
|
|
2318 | |
|
|
2319 | Returns the size of the mapped area, in bytes. Same as C<length $$mapped>. |
|
|
2320 | |
|
|
2321 | =item $ptr = $mapped->ptr |
|
|
2322 | |
|
|
2323 | Returns the raw memory address of the mapped area. |
|
|
2324 | |
|
|
2325 | =item $mapped->set ($offset, $data) |
|
|
2326 | |
|
|
2327 | Replaces the data at the given C<$offset> in the memory area by the new |
|
|
2328 | C<$data>. This method is safer than direct manipulation of C<$mapped> |
|
|
2329 | because it does bounds-checking, but also slower. |
|
|
2330 | |
|
|
2331 | =item $data = $mapped->get ($offset, $length) |
|
|
2332 | |
|
|
2333 | Returns (without copying) a scalar representing the data at the given |
|
|
2334 | C<$offset> and C<$length> in the mapped memory area. This is the same as |
|
|
2335 | the following substr, except much slower; |
|
|
2336 | |
|
|
2337 | $data = substr $$mapped, $offset, $length |
|
|
2338 | |
|
|
2339 | =cut |
|
|
2340 | |
|
|
2341 | sub OpenCL::Mapped::get { |
|
|
2342 | substr ${$_[0]}, $_[1], $_[2] |
|
|
2343 | } |
1469 | |
2344 | |
1470 | =back |
2345 | =back |
1471 | |
2346 | |
|
|
2347 | =head2 THE OpenCL::MappedBuffer CLASS |
|
|
2348 | |
|
|
2349 | This is a subclass of OpenCL::Mapped, representing mapped buffers. |
|
|
2350 | |
|
|
2351 | =head2 THE OpenCL::MappedImage CLASS |
|
|
2352 | |
|
|
2353 | This is a subclass of OpenCL::Mapped, representing mapped images. |
|
|
2354 | |
|
|
2355 | =over 4 |
|
|
2356 | |
|
|
2357 | =item $pixels = $mapped->width |
|
|
2358 | |
|
|
2359 | =item $pixels = $mapped->height |
|
|
2360 | |
|
|
2361 | =item $pixels = $mapped->depth |
|
|
2362 | |
|
|
2363 | Return the width/height/depth of the mapped image region, in pixels. |
|
|
2364 | |
|
|
2365 | =item $bytes = $mapped->row_pitch |
|
|
2366 | |
|
|
2367 | =item $bytes = $mapped->slice_pitch |
|
|
2368 | |
|
|
2369 | Return the row or slice pitch of the image that has been mapped. |
|
|
2370 | |
|
|
2371 | =item $bytes = $mapped->element_size |
|
|
2372 | |
|
|
2373 | Return the size of a single pixel. |
|
|
2374 | |
|
|
2375 | =item $data = $mapped->get_row ($count, $x=0, $y=0, $z=0) |
|
|
2376 | |
|
|
2377 | Return C<$count> pixels from the given coordinates. The pixel data must |
|
|
2378 | be completely contained within a single row. |
|
|
2379 | |
|
|
2380 | If C<$count> is C<undef>, then all the remaining pixels in that row are |
|
|
2381 | returned. |
|
|
2382 | |
|
|
2383 | =item $mapped->set_row ($data, $x=0, $y=0, $z=0) |
|
|
2384 | |
|
|
2385 | Write the given pixel data at the given coordinate. The pixel data must |
|
|
2386 | be completely contained within a single row. |
|
|
2387 | |
|
|
2388 | =back |
|
|
2389 | |
1472 | =cut |
2390 | =cut |
1473 | |
|
|
1474 | package OpenCL; |
|
|
1475 | |
|
|
1476 | use common::sense; |
|
|
1477 | |
|
|
1478 | BEGIN { |
|
|
1479 | our $VERSION = '0.96'; |
|
|
1480 | |
|
|
1481 | require XSLoader; |
|
|
1482 | XSLoader::load (__PACKAGE__, $VERSION); |
|
|
1483 | |
|
|
1484 | @OpenCL::Buffer::ISA = |
|
|
1485 | @OpenCL::Image::ISA = OpenCL::Memory::; |
|
|
1486 | |
|
|
1487 | @OpenCL::BufferObj::ISA = OpenCL::Buffer::; |
|
|
1488 | |
|
|
1489 | @OpenCL::Image2D::ISA = |
|
|
1490 | @OpenCL::Image3D::ISA = OpenCL::Image::; |
|
|
1491 | |
|
|
1492 | @OpenCL::UserEvent::ISA = OpenCL::Event::; |
|
|
1493 | } |
|
|
1494 | |
2391 | |
1495 | 1; |
2392 | 1; |
1496 | |
2393 | |
1497 | =head1 AUTHOR |
2394 | =head1 AUTHOR |
1498 | |
2395 | |