{"id":86564,"date":"2020-06-27T01:42:06","date_gmt":"2020-06-26T23:42:06","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vulkan-drajver-radv-perevedyon-na-ispolzovanie-bekenda-kompilyaczii-shejderov-aco"},"modified":"2020-06-27T01:42:06","modified_gmt":"2020-06-26T23:42:06","slug":"vulkan-drajver-radv-perevedyon-na-ispolzovanie-bekenda-kompilyaczii-shejderov-aco","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sk\/blog\/news\/vulkan-drajver-radv-perevedyon-na-ispolzovanie-bekenda-kompilyaczii-shejderov-aco","title":{"rendered":"Vulkan ovl\u00e1da\u010d RADV pre\u0161iel na pou\u017e\u00edvanie backendu pre kompil\u00e1ciu shaderov ACO","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

V k\u00f3dovej b\u00e1ze, ktor\u00e1 sa pou\u017e\u00edva na vydanie Mesa 20.2, bolo realizovan\u00e9<\/a><\/noindex> prepn\u00fa\u0165 RADV, Vulkan ovl\u00e1da\u010d pre \u010dipy AMD na predvolen\u00e9 pou\u017e\u00edvanie backendu na kompil\u00e1ciu shaderov «ACO<\/a><\/noindex>«, ktor\u00fd vyv\u00edja spolo\u010dnos\u0165 Valve ako alternat\u00edvu ku kompil\u00e1toru shaderov LLVM. Uveden\u00e1 zmena povedie k zv\u00fd\u0161eniu v\u00fdkonu hier a skr\u00e1teniu ich na\u010d\u00edtania. Pre n\u00e1vrat ku star\u00e9mu backendu je k dispoz\u00edcii premenn\u00e1 prostredia «RADV_DEBUG=llvm».<\/p>\n

Prepn\u00fa\u0165 ovl\u00e1da\u010d RADV na nov\u00fd backend sa podarilo po dosiahnut\u00ed parity v ACO s funk\u010dnos\u0165ou star\u00e9ho backendu vyvinut\u00e9ho spolo\u010dnos\u0165ou AMD pre ovl\u00e1da\u010d AMDGPU, ktor\u00fd sa na\u010falej pou\u017e\u00edva v OpenGL ovl\u00e1da\u010di RadeonSI. Testovanie vykonan\u00e9 spolo\u010dnos\u0165ou Valve uk\u00e1zala<\/a><\/noindex>, ukazuje, \u017ee ACO takmer dvakr\u00e1t prevy\u0161uje kompil\u00e1tor shaderov AMDGPU z h\u013eadiska r\u00fdchlosti kompil\u00e1cie a demon\u0161truje zv\u00fd\u0161enie FPS v niektor\u00fdch hr\u00e1ch pri ich prev\u00e1dzke na syst\u00e9mov\u00fdch prostrediach s ovl\u00e1da\u010dom RADV.
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\"Vulkan<\/a><\/noindex><\/center>
\n
\"Vulkan<\/a><\/noindex><\/center><\/p>\n

Backend ACO sa zameriava na zabezpe\u010denie generovania k\u00f3du, ktor\u00fd je \u010do najviac optim\u00e1lny pre shadery hern\u00fdch aplik\u00e1ci\u00ed, ako aj na dosiahnutie ve\u013emi vysokej r\u00fdchlosti kompil\u00e1cie. ACO je nap\u00edsan\u00e9 v jazyku C++, vyv\u00edja sa s oh\u013eadom na mo\u017enos\u0165 pou\u017eitia pre JIT kompil\u00e1ciu a pou\u017e\u00edva r\u00fdchle \u0161trukt\u00fary \u00fadajov na preh\u013ead\u00e1vanie, pri\u010dom sa vyh\u00fdba \u0161trukt\u00faram zalo\u017een\u00fdm na ukazovate\u013eoch. Medzi\u013eahl\u00e9 reprezent\u00e1cie k\u00f3du s\u00fa \u00faplne zalo\u017een\u00e9 na SSA (Static Single Assignment) a umo\u017e\u0148uj\u00fa presn\u00e9 rozdelenie registrov v z\u00e1vislosti od shaderu. <\/p>\n

Doplnok: V s\u00fa\u010dasnosti ACO funguje iba pre Vulkan ovl\u00e1da\u010d Mesa RADV. Av\u0161ak v\u00fdvoj\u00e1ri ACO potvrdili<\/a><\/noindex>, \u017ee ich \u010fal\u0161\u00edm krokom bude za\u010da\u0165 pracova\u0165 na roz\u0161\u00edren\u00ed funkci\u00ed ACO s cie\u013eom zabezpe\u010di\u0165 podporu OpenGL ovl\u00e1da\u010da RadeonSI, aby v bud\u00facnosti mohol ACO nahradi\u0165 kompil\u00e1tor shaderov LLVM aj pre tento ovl\u00e1da\u010d.<\/p>\n

<\/a><\/noindex><\/p>\n

Zdroj: opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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