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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::Buffers objects (flat |
32 | OpenCL::Memory objects of various flavours: OpenCL::Buffers objects (flat |
33 | memory areas, think array) and OpenCL::Image objects (think 2d or 3d |
33 | memory areas, think arrays or structs) and OpenCL::Image objects (think 2d |
34 | 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 |
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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 | |
52 | |
53 | OpenCL manpages: |
53 | OpenCL manpages: |
54 | |
54 | |
55 | http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/ |
55 | http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/ |
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56 | |
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57 | If you are into UML class diagrams, the following diagram might help - if |
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58 | not, it will be mildly cobfusing: |
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59 | |
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60 | http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/classDiagram.html |
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61 | |
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62 | Here's a tutorial from AMD (very AMD-centric, too), not sure how useful it |
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63 | is, but at least it's free of charge: |
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64 | |
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65 | http://developer.amd.com/zones/OpenCLZone/courses/Documents/Introduction_to_OpenCL_Programming%20Training_Guide%20%28201005%29.pdf |
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66 | |
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67 | And here's NVIDIA's OpenCL Best Practises Guide: |
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68 | |
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69 | http://developer.download.nvidia.com/compute/cuda/3_2/toolkit/docs/OpenCL_Best_Practices_Guide.pdf |
56 | |
70 | |
57 | =head1 BASIC WORKFLOW |
71 | =head1 BASIC WORKFLOW |
58 | |
72 | |
59 | To get something done, you basically have to do this once (refer to the |
73 | To get something done, you basically have to do this once (refer to the |
60 | examples below for actual code, this is just a high-level description): |
74 | examples below for actual code, this is just a high-level description): |
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374 | |
388 | |
375 | =item $buf = $ctx->buffer_sv ($flags, $data) |
389 | =item $buf = $ctx->buffer_sv ($flags, $data) |
376 | |
390 | |
377 | Creates a new OpenCL::Buffer object and initialise it with the given data values. |
391 | Creates a new OpenCL::Buffer object and initialise it with the given data values. |
378 | |
392 | |
379 | =item $img = $ctx->image2d ($flags, $channel_order, $channel_type, $width, $height, $data) |
393 | =item $img = $ctx->image2d ($flags, $channel_order, $channel_type, $width, $height, $row_pitch = 0, $data = undef) |
380 | |
394 | |
381 | Creates a new OpenCL::Image2D object and optionally initialises it with the given data values. |
395 | Creates a new OpenCL::Image2D object and optionally initialises it with the given data values. |
382 | |
396 | |
383 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateImage2D.html> |
397 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateImage2D.html> |
384 | |
398 | |
385 | =item $img = $ctx->image3d ($flags, $channel_order, $channel_type, $width, $height, $depth, $slice_pitch, $data) |
399 | =item $img = $ctx->image3d ($flags, $channel_order, $channel_type, $width, $height, $depth, $row_pitch = 0, $slice_pitch = 0, $data = undef) |
386 | |
400 | |
387 | Creates a new OpenCL::Image3D object and optionally initialises it with the given data values. |
401 | Creates a new OpenCL::Image3D object and optionally initialises it with the given data values. |
388 | |
402 | |
389 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateImage3D.html> |
403 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clCreateImage3D.html> |
390 | |
404 | |
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453 | |
467 | |
454 | =item $ev = $queue->enqueue_read_image ($src, $blocking, $x, $y, $z, $width, $height, $depth, $row_pitch, $slice_pitch, $data, $wait_events...) |
468 | =item $ev = $queue->enqueue_read_image ($src, $blocking, $x, $y, $z, $width, $height, $depth, $row_pitch, $slice_pitch, $data, $wait_events...) |
455 | |
469 | |
456 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReadImage.html> |
470 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueReadImage.html> |
457 | |
471 | |
458 | =item $ev = $queue->enqueue_write_image ($src, $blocking, $x, $y, $z, $width, $height, $depth, $row_pitch, $data, $wait_events...) |
472 | =item $ev = $queue->enqueue_write_image ($src, $blocking, $x, $y, $z, $width, $height, $depth, $row_pitch, $slice_pitch, $data, $wait_events...) |
459 | |
473 | |
460 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWriteImage.html> |
474 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueWriteImage.html> |
461 | |
475 | |
462 | =item $ev = $queue->enqueue_copy_buffer_rect ($src, $dst, $src_x, $src_y, $src_z, $dst_x, $dst_y, $dst_z, $width, $height, $depth, $src_row_pitch, $src_slice_pitch, 4dst_row_pitch, $dst_slice_pitch, $wait_event...) |
476 | =item $ev = $queue->enqueue_copy_buffer_rect ($src, $dst, $src_x, $src_y, $src_z, $dst_x, $dst_y, $dst_z, $width, $height, $depth, $src_row_pitch, $src_slice_pitch, $dst_row_pitch, $dst_slice_pitch, $wait_event...) |
463 | |
477 | |
464 | Yeah. |
478 | Yeah. |
465 | |
479 | |
466 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyBufferRect.html> |
480 | L<http://www.khronos.org/registry/cl/sdk/1.1/docs/man/xhtml/clEnqueueCopyBufferRect.html> |
467 | |
481 | |
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646 | package OpenCL; |
660 | package OpenCL; |
647 | |
661 | |
648 | use common::sense; |
662 | use common::sense; |
649 | |
663 | |
650 | BEGIN { |
664 | BEGIN { |
651 | our $VERSION = '0.14'; |
665 | our $VERSION = '0.15'; |
652 | |
666 | |
653 | require XSLoader; |
667 | require XSLoader; |
654 | XSLoader::load (__PACKAGE__, $VERSION); |
668 | XSLoader::load (__PACKAGE__, $VERSION); |
655 | |
669 | |
656 | @OpenCL::Buffer::ISA = |
670 | @OpenCL::Buffer::ISA = |