Projektet lsfg-vk har udviklet en uofficiel port af v\u00e6rkt\u00f8jet Lossless Scalings Frame Generation (LSFG) til Linux-platformen, der bruger DXVK og grafik-API'en Vulkan. Koden til projektet er skrevet i C++ og frigivet under MIT-licensen. Udviklingen er udf\u00f8rt af en uafh\u00e6ngig entusiast, der har genskabt funktionaliteterne fra den propriet\u00e6re LSFG via reverse engineering af Windows-biblioteker. <\/p>\n
Anvendelsen g\u00f8r det muligt at skalere output fra spilapplikationer, der er designet til at k\u00f8re i et vindue, for at vise dem i fuldsk\u00e6rms-tilstand. V\u00e6rkt\u00f8jet kan ogs\u00e5 v\u00e6re n\u00f8dvendigt for at fjerne sl\u00f8rede billeder ved skalering med den almindelige grafiske subsystem eller for at omg\u00e5 begr\u00e6nsninger i spil, der er knyttet til faste sk\u00e6rmopl\u00f8sninger. Derudover er der mulighed for at forbedre glidningen og \u00f8ge billedfrekvensen i spil, der ikke er designet til h\u00f8j FPS, ved at inds\u00e6tte ekstra billeder skabt p\u00e5 baggrund af interpolation af nabo-billeder. <\/p>\n
Til at genskabe manglende detaljer og skalering i LSFG kan b\u00e5de egne originale algoritmer og eksisterende teknologier baseret p\u00e5 maskinl\u00e6ring, s\u00e5som AMD FidelityFX Super Resolution og NVIDIA Image Scaling, anvendes. Valget af algoritme afh\u00e6nger af typen af spilapplikationer. For moderne spil anbefales det at bruge den egenudviklede algoritme LS1 eller teknologien til supersampling AMD FSR. For \u00e6ldre spil med pixelgrafik tilbydes algoritmerne Integer Scaling og xBR, mens algoritmen Anime4K er tilg\u00e6ngelig for spil i tegneserie- og anime-stil. Udover spil kan output-modifikationen ogs\u00e5 anvendes til emulatorer til at k\u00f8re retro-spil og konsol-spil. <\/p>\n
Skalering og billedinds\u00e6ttelse foreg\u00e5r on-the-fly og kr\u00e6ver ikke \u00e6ndringer i spillene. I versionen til Linux bruges et tilslutningshandler i form af et ekstra Vulkan-lag til billedinds\u00e6ttelse og indgriben i spillets output, ved hj\u00e6lp af hvilket eksisterende Vulkan-funktioner fanges, udf\u00f8res og modificeres. For at bruge lsfg-vk er det tilstr\u00e6kkeligt at installere biblioteket liblsfg-vk.so og konfigurere dets parametre via milj\u00f8variable. <\/p>\n
Den originale LSFG er en kompilering af en applikation til Windows baseret p\u00e5 D3D11 API. For at genskabe LSFG-funktionaliteten i Linux er implementeringen blevet oversat til en version, der bruger Vulkan API. For at overf\u00f8re shaderne blev der tilf\u00f8jet en behandler, der opfanger D3D11 kald og gemmer shaderne p\u00e5 disken samt en parser til dynamisk at udtr\u00e6kke shaderne fra k\u00f8rende filer i PE (Portable Executable) format. For at overf\u00f8re den grafiske pipeline, der styrer shaderudf\u00f8relsen, blev komponenter baseret p\u00e5 D3D11 isoleret fra applikationen, og ved hj\u00e6lp af DXVK blev deres funktionalitet sikret i Linux. Efter at have f\u00e5et en fungerende version baseret p\u00e5 D3D11 og DXVK, blev der med debuggeren RenderDoc udarbejdet en pr\u00e6cis layout af Vulkan kald, som l\u00e5 til grund for den endelige version, der bruger Vulkan API direkte. \u041f\u0440\u043e\u0435\u043a\u0442\u043e\u043c lsfg-vk \u043f\u043e\u0434\u0433\u043e\u0442\u043e\u0432\u043b\u0435\u043d \u043d\u0435\u043e\u0444\u0438\u0446\u0438\u0430\u043b\u044c\u043d\u044b\u0439 \u043f\u043e\u0440\u0442 \u0443\u0442\u0438\u043b\u0438\u0442\u044b Lossless Scalings Frame Generation (LSFG) \u0434\u043b\u044f \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u044b Linux, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044e\u0449\u0438\u0439 DXVK \u0438 \u0433\u0440\u0430\u0444\u0438\u0447\u0435\u0441\u043a\u0438\u0439 API Vulkan. \u041a\u043e\u0434 \u043f\u0440\u043e\u0435\u043a\u0442\u0430 \u043d\u0430\u043f\u0438\u0441\u0430\u043d \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 C++ \u0438 \u0440\u0430\u0437\u043c\u0435\u0449\u0451\u043d \u043f\u043e\u0434 \u043b\u0438\u0446\u0435\u043d\u0437\u0438\u0435\u0439 MIT. \u0420\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0430 \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0430 \u0441\u0442\u043e\u0440\u043e\u043d\u043d\u0438\u043c \u044d\u043d\u0442\u0443\u0437\u0438\u0430\u0441\u0442\u043e\u043c, \u0432\u043e\u0441\u0441\u043e\u0437\u0434\u0430\u0432\u0448\u0438\u043c \u0444\u0443\u043d\u043a\u0446\u0438\u043e\u043d\u0430\u043b\u044c\u043d\u043e\u0441\u0442\u044c \u043f\u0440\u043e\u043f\u0440\u0438\u0435\u0442\u0430\u0440\u043d\u043e\u0433\u043e LSFG \u0447\u0435\u0440\u0435\u0437 \u043e\u0431\u0440\u0430\u0442\u043d\u044b\u0439 \u0438\u043d\u0436\u0438\u043d\u0438\u0440\u0438\u043d\u0433 Windows-\u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a. \u041f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0435 \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u043c\u0430\u0441\u0448\u0442\u0430\u0431\u0438\u0440\u043e\u0432\u0430\u0442\u044c \u0432\u044b\u0432\u043e\u0434 \u0438\u0433\u0440\u043e\u0432\u044b\u0445 \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0439, \u0440\u0430\u0441\u0441\u0447\u0438\u0442\u0430\u043d\u043d\u044b\u0445 \u043d\u0430 \u0437\u0430\u043f\u0443\u0441\u043a \u0432 \u043e\u0442\u0434\u0435\u043b\u044c\u043d\u043e\u043c \u043e\u043a\u043d\u0435, 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Kilde: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"