{"id":584,"date":"2016-10-20T15:41:26","date_gmt":"2016-10-20T07:41:26","guid":{"rendered":"http:\/\/blog.sorayuki.net\/?p=584"},"modified":"2017-03-21T01:00:28","modified_gmt":"2017-03-20T17:00:28","slug":"%e7%94%a8opencl%e9%80%a0gpu%e5%8a%a0%e9%80%9f%e7%9a%84avisynth%e6%bb%a4%e9%95%9c","status":"publish","type":"post","link":"https:\/\/blog.sorayuki.net\/?p=584","title":{"rendered":"\u7528OpenCL\u9020GPU\u52a0\u901f\u7684AviSynth\u6ee4\u955c"},"content":{"rendered":"

\u8fd9\u4e00\u5b63\u5ea6\u6709\u4e2a\u53eb\u300a\u6708\u66dc\u65e5\u306e\u305f\u308f\u308f\u300b\u7684\u52a8\u753b\u7247\u3002\u539f\u4f5c\u662f\u6bd4\u6751\u5947\u77f3\u7684\u6f2b\u753b\uff0c\u8fd9\u4e2a\u4f5c\u8005\u7684\u6f2b\u753b\u6709\u4e00\u4e2a\u7279\u70b9\uff0c\u548c\u5176\u4ed6\u7528\u9ed1\u767d\u6765\u8868\u73b0\u4eae\u5ea6\u7684\u6f2b\u753b\u4e0d\u540c\uff0c\u6bd4\u6751\u7528\u7684\u662f\u84dd\u767d\u8272\u8c03\u8868\u73b0\u3002\u770b\u5230\u8fd9\u4e2a\u52a8\u753b\u7684\u65f6\u5019\uff0c\u6211\u5728\u8003\u8651\uff0c\u80fd\u4e0d\u80fd\u7528\u4e00\u79cd\u5904\u7406\u65b9\u5f0f\uff0c\u628a\u52a8\u753b\u505a\u6210\u6f2b\u753b\u90a3\u79cd\u8272\u8c03\u7684\u6548\u679c\u3002<\/p>\n

\u601d\u8def\u662f\u5f88\u7b80\u5355\u7684\uff0c\u5148\u62ff\u6bd4\u6751\u5947\u77f3\u7684\u6f2b\u753b\u539f\u4f5c\u6765\u5206\u6790\uff0c\u5047\u8bbe\u8868\u793a\u540c\u4e00\u4eae\u5ea6\u7684\u50cf\u7d20\u7684 RGB \u503c\u662f\u4e00\u6837\u7684\uff0c\u8fd9\u6837\u5c31\u80fd\u5f97\u5230\u4e00\u4e2a\u4ece YUV \u7684 Y \u901a\u9053\u5230 RGB \u7684\u6620\u5c04\u3002\u7ed3\u679c\u5927\u6982\u662f\u8fd9\u6837\uff08Y \u548c RGB \u7684\u8303\u56f4\u90fd\u662f 0 \u5230 255\uff09\uff1a<\/p>\n

R = Y > 85 ? ((Y - 85) \/ 255 * 340) : 0;
\nG = Y;
\nB = Y > 135 ? 255 : Y + 120;<\/p>\n

\u7136\u540e\u8981\u5bf9\u6bcf\u4e2a\u50cf\u7d20\u90fd\u5904\u7406\u3002\u4e5f\u5c31\u662f\u4e00\u4e2a\u5f88\u5927\u7684\u5faa\u73af\uff0c\u7136\u540e 1920x1080 \u4e2a\u50cf\u7d20\u5168\u90e8\u6309\u7167\u4e0a\u9762\u7684\u7b97\u4e00\u6b21\u3002\u53ea\u662f\u89e3\u7801\u7136\u540e\u8f6c\u6210 RGB \u8fdb\u884c\u4e0a\u9762\u7684\u5904\u7406\u518d\u8f6c\u56de YV12\uff08\u4e0d\u5305\u542b\u62ff\u53bb\u7f16\u7801\uff09\uff0c\u901f\u5ea6\u4e0d\u523030\u5e27\u6bcf\u79d2\uff08\u6ca1\u6709\u4f7f\u7528 SIMD \u6307\u4ee4\u96c6\uff09\u3002<\/p>\n

\u56e0\u4e3a\u5904\u7406\u8fc7\u7a0b\u6bcf\u4e2a\u50cf\u7d20\u4e92\u4e0d\u5f71\u54cd\uff0c\u5982\u679c\u80fd\u4ee5\u975e\u5e38\u591a\u7684\u7ebf\u7a0b\u540c\u65f6\u8fd0\u884c\uff0c\u90a3\u4e48\u53ef\u4ee5\u5927\u5927\u52a0\u5feb\u901f\u5ea6\u3002\u8fd9\u79cd\u4e8b\u60c5\u662fGPU\u64c5\u957f\u7684\uff0c\u6240\u4ee5\u5c31\u601d\u8003\u7740\u7528 OpenCL \u505a\u8fd9\u6837\u7684\u8fd0\u7b97\uff0c\u770b\u770b\u80fd\u6709\u591a\u5757\u7684\u901f\u5ea6\u3002<\/p>\n

OpenCL \u539f\u59cb\u63a5\u53e3\u5b9e\u5728\u662f\u592a\u9ebb\u70e6\u4e86\uff0c\u770b\u7740\u5c31\u8ba9\u4eba\u63d0\u4e0d\u8d77\u5e72\u52b2\u3002\u4e8e\u662f\u5f80\u4e0a\u641c\u4e86\u4e00\u5708\uff0c\u627e\u4e86\u4e00\u4e2a\u53eb\u505a EasyCL \u7684\u5e93\u6765\u3002\u5b83\u5bf9 OpenCL \u539f\u59cb\u63a5\u53e3\u8fdb\u884c\u5c01\u88c5\uff0c\u7136\u540e\u5c31\u80fd\u4ee5\u7b80\u6d01\u5f97\u591a\u7684\u65b9\u5f0f\u6765\u8c03\u7528 OpenCL\u3002EasyCL \u5728\u7f16\u8bd1\u8fc7\u7a0b\u4e2d\u9700\u8981 OpenCL \u7684\u5934\u6587\u4ef6\u548c\u5e93\u3002\u5230 Intel\u3001Nvidia\u3001AMD \u7f51\u7ad9\u770b\u4e86\u4e00\u5708\uff0c\u611f\u89c9 SDK \u90fd\u597d\u5927\u597d\u9ebb\u70e6\u3002\u7136\u800c\u6211\u5728\u81ea\u5df1\u7cfb\u7edf\u6587\u4ef6\u5939\u4e0b\u770b\u5230\u4e86 OpenCL.DLL\uff0c\u5b83\u7684\u5bfc\u51fa\u51fd\u6570\u4e5f\u548c\u5934\u6587\u4ef6\u91cc\u80fd\u5bf9\u5e94\u4e0a\u3002\u4e8e\u662f\u5c31\u5230 GitHub \u4e0a\u76f4\u63a5\u627e KhronosGroup \u53d1\u7684 OpenCL \u7684\u5934\u6587\u4ef6\uff08\u8fd9\u91cc\uff1ahttps:\/\/github.com\/KhronosGroup\/OpenCL-Headers\uff09\uff0c\u4e0b\u4e0b\u6765\u4ee5\u540e\u7f16\u8bd1\u80fd\u8fc7\u4e86\u3002LIB \u6587\u4ef6\u5c31\u901a\u8fc7\u94fe\u63a5\u7684\u65f6\u5019\u62a5\u9519\u4fe1\u606f\u4e2d\u627e\u4e0d\u5230\u7684\u90a3\u4e9b\u7b26\u53f7\uff0c\u81ea\u5df1\u9020\u4e00\u4e2a\uff08\u7528\u8fd9\u4e2a\u6587\u7ae0<\/a>\u91cc\u63d0\u5230\u7684\u81ea\u5236\u5de5\u5177\uff09\u3002\u901a\u8fc7\u4e86\u94fe\u63a5\u4ee5\u540e\uff0c\u5f97\u5230\u4e86 EasyCL.DLL \u548c EasyCL.LIB\u3002<\/p>\n

\u7136\u540e\u5229\u7528\u4ee5\u4e0b\u7b80\u5355\u7684\u51fd\u6570\u5c31\u80fd\u8c03\u7528 OpenCL \u8fdb\u884c\u8fd0\u7b97\u4e86\uff1a<\/p>\n

EasyCL::isOpenCLAvailable() \u53ef\u4ee5\u5224\u65ad\u7cfb\u7edf\u80fd\u4e0d\u80fd\u8c03\u7528 OpenCL
\nEasyCL::createForFirstGpu() \u53ef\u4ee5\u521b\u5efa\u4e00\u4e2a CL \u5bf9\u8c61
\nEasyCL::buildKernelFromString() \u53ef\u4ee5\u4ece\u6e90\u4ee3\u7801\u5b57\u7b26\u4e32\u521b\u5efa\u4e00\u4e2a CL \u7a0b\u5e8f\uff0c\u9700\u8981\u6307\u5b9a\u5165\u53e3\u51fd\u6570\u540d\uff0cOption \u662f\u5e72\u561b\u7528\u7684\u4e0d\u77e5\u9053\u4e0d\u8fc7\u53ef\u4ee5\u9001\u4e00\u4e2a\u7a7a\u5b57\u7b26\u4e32\u8fdb\u53bb
\nCLKernel::in() \u53ef\u4ee5\u9001\u4ece\u5185\u5b58\u62f7\u5230\u663e\u5b58\u7684\u53c2\u6570\u8fdb\u53bb
\nCLKernel::out() \u53ef\u4ee5\u9001\u4ece\u663e\u5b58\u62f7\u5230\u5185\u5b58\u7684\u53c2\u6570\u8fdb\u53bb\uff0c\u8fd9\u4e24\u4e2a\u9001\u53c2\u6570\u7684\u51fd\u6570\uff0c\u6709\u4e9b\u7c7b\u578b\u662f\u4e0d\u652f\u6301\u7684\u3002\u4e0d\u8fc7\u65e2\u7136\u90fd\u662f\u6307\u9488\uff0c\u53ef\u4ee5\u8f6c\u6210\u5b83\u8ba4\u7684\u90a3\u79cd\u6307\u9488\u9001\u8fdb\u53bb\uff08\u6570\u7ec4\u5927\u5c0f\u8bb0\u5f97\u4e5f\u8981\u6839\u636e\u7c7b\u578b\u7684\u53d8\u5316\u800c\u53d8\u5316\uff09
\nCLKernel::run_1d() \u53ef\u4ee5\u8fd0\u884c\u7a0b\u5e8f\u3002\u4e24\u4e2a\u53c2\u6570\u5206\u522b\u662f\u4e00\u5171\u6709\u591a\u5c11\u4efb\u52a1\uff0c\u7136\u540e\u4e00\u6b21\u8fd0\u884c\u591a\u5c11\u4e2a\u4efb\u52a1\u3002\u524d\u8005\u8981\u662f\u540e\u8005\u7684\u500d\u6570\u5426\u5219\u5b83\u8981\u62a5\u9519<\/strong>\uff0c\u4e00\u6b21\u6700\u591a\u80fd\u8fd0\u884c\u591a\u5c11\u4efb\u52a1\u53ef\u4ee5\u901a\u8fc7 EasyCL::getMaxWorkgroupSize() \u6765\u83b7\u53d6\u3002<\/p>\n

\u89e3\u91ca\u4e00\u4e0b\u4ec0\u4e48\u53eb\u201c\u4e00\u5171\u591a\u5c11\u4efb\u52a1\u3001\u4e00\u6b21\u8fd0\u884c\u591a\u5c11\u4efb\u52a1\u201d\u3002\u6bd4\u5982\u8fd9\u4e2a\u89c6\u9891\u662f 1920x1080 \u7684\uff0c\u90a3\u4e48\u4e00\u5171\u6709 2073600 \u4e2a\u50cf\u7d20\u70b9\uff0c\u6bcf\u4e2a\u50cf\u7d20\u5904\u7406\u4e00\u6b21\u7684\u8bdd\u5c31\u4e00\u5171\u6709 2073600 \u4e2a\u4efb\u52a1\u3002\u901a\u8fc7\u8c03\u7528\u51fd\u6570\u5f97\u77e5\u4e00\u6b21\u80fd\u8fd0\u884c 1024 \u4e2a\u4efb\u52a1\uff0c\u90a3\u4e48\u5c31\u53ef\u4ee5\u9001 2073600 \u548c 1024 \u4f5c\u4e3a\u53c2\u6570\u5230 run_1d \u51fd\u6570\u91cc\u53bb\uff08\u56e0\u4e3a 2073600\u00f71024 \u80fd\u6574\u9664\u3001\u6ca1\u6709\u4f59\u6570\uff09\u3002\u7136\u540e\u5728 OpenCL \u4ee3\u7801\u91cc\u7528\u00a0get_global_id(0) \u83b7\u53d6\u5f53\u524d\u662f\u7b2c\u51e0\u4e2a\u4efb\u52a1\uff0c\u6839\u636e\u4efb\u52a1\u7684\u7f16\u53f7\u6765\u51b3\u5b9a\u8981\u505a\u4ec0\u4e48\u4efb\u52a1\u3002\uff08\u5728\u672c\u6587\u4e2d\uff0c\u7f16\u53f7\u5c31\u662f\u201c\u7b2c\u51e0\u4e2a\u50cf\u7d20\u201d\uff09<\/p>\n

\u8fd9\u4e2a\u5e93\u5728\u51fa\u73b0\u9519\u8bef\u7684\u65f6\u5019\uff0c\u4f1a\u629b\u5f02\u5e38\u7ed9\u4f60\u800c\u4e0d\u662f\u8fd4\u56de\u9519\u8bef\u7801\u6216\u8005\u4ec0\u4e48\u7684\u3002\u6240\u4ee5\u8981\u505a\u597d\u5f02\u5e38\u6355\u6349\uff0c\u4e0d\u7136\u5f02\u5e38\u629b\u51fa\u6765\u7a0b\u5e8f\u6ca1\u6355\u6349\u3001\u7a0b\u5e8f\u5c31\u5d29\u4e86\u3002<\/p>\n

\u6539\u6210\u7528 GPU \u5904\u7406\u4e4b\u540e\uff0c\u5904\u7406\u901f\u5ea6\u4ece\u539f\u6765\u7684\u6bcf\u79d2 30 \u5e27\u4e0d\u5230\u53d8\u6210\u4e86\u73b0\u5728\u63a5\u8fd1 90 \u5e27\u3002\u6548\u679c\u8fd8\u662f\u5f88\u660e\u663e\u7684\u3002<\/p>\n

P.S. \u4eceQQ\u7fa4\u5185\u804a\u5929\u5f97\u77e5\uff0c\u5fae\u8f6f\u6709\u4e2a DirectCompute \u80fd\u505a\u7c7b\u4f3c\u7684\u4e8b\u60c5\u3002\u8fd8\u6709\u4e2a\u5173\u952e\u5b57\u662f C++ AMP\uff0c\u53ef\u4ee5\u76f4\u63a5\u5728\u7f16\u8bd1\u65f6\u751f\u6210\u62ff\u5230 GPU \u4e0a\u8dd1\u7684\u4ee3\u7801\uff0c\u9700\u8981 DirectX 11 \u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u8fd9\u4e00\u5b63\u5ea6\u6709\u4e2a\u53eb\u300a\u6708\u66dc\u65e5\u306e\u305f\u308f\u308f\u300b\u7684\u52a8\u753b\u7247\u3002\u539f\u4f5c\u662f\u6bd4\u6751\u5947\u77f3\u7684\u6f2b\u753b\uff0c\u8fd9\u4e2a\u4f5c\u8005\u7684\u6f2b\u753b\u6709\u4e00\u4e2a\u7279\u70b9\uff0c\u548c\u5176\u4ed6\u7528\u9ed1\u767d\u6765\u8868\u73b0\u4eae … \u7ee7\u7eed\u9605\u8bfb\u7528OpenCL\u9020GPU\u52a0\u901f\u7684AviSynth\u6ee4\u955c<\/span> →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22],"tags":[],"class_list":["post-584","post","type-post","status-publish","format-standard","hentry","category-22"],"_links":{"self":[{"href":"https:\/\/blog.sorayuki.net\/index.php?rest_route=\/wp\/v2\/posts\/584","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.sorayuki.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.sorayuki.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.sorayuki.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.sorayuki.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=584"}],"version-history":[{"count":0,"href":"https:\/\/blog.sorayuki.net\/index.php?rest_route=\/wp\/v2\/posts\/584\/revisions"}],"wp:attachment":[{"href":"https:\/\/blog.sorayuki.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=584"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.sorayuki.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=584"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.sorayuki.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=584"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}