{"id":94546,"date":"2020-09-18T13:42:07","date_gmt":"2020-09-18T11:42:07","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/biblioteki-szhatiya-lzham-i-crunch-perevedeny-v-obshhestvennoe-dostoyanie"},"modified":"2020-09-18T13:42:07","modified_gmt":"2020-09-18T11:42:07","slug":"biblioteki-szhatiya-lzham-i-crunch-perevedeny-v-obshhestvennoe-dostoyanie","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pl\/blog\/news\/biblioteki-szhatiya-lzham-i-crunch-perevedeny-v-obshhestvennoe-dostoyanie","title":{"rendered":"Biblioteki kompresji LZHAM i Crunch zosta\u0142y przekazane do domeny publicznej.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Rich Geldreich przet\u0142umaczy\u0142<\/a><\/noindex> opracowane przez niego biblioteki kompresji LZHAM<\/a><\/noindex> i Crunch<\/a><\/noindex> w kategorii d\u00f3br publicznych<\/a><\/noindex> (Public Domain), tj. ca\u0142kowicie zrezygnowa\u0142 z maj\u0105tkowych praw autorskich i umo\u017cliwi\u0142 dystrybucj\u0119 oraz wykorzystanie w dowolnej formie przez wszystkich bez ogranicze\u0144. Dla jurysdykcji, w kt\u00f3rych kategoria d\u00f3br publicznych nie jest uznawana, pozostawione odpowiednie zastrze\u017cenia. Wcze\u015bniej projekty by\u0142y dystrybuowane na licencjach MIT i ZLIB.<\/p>\n

Biblioteka Crunch zapewnia \u015brodki do kompresji i transkodowania tekstur bez utraty jako\u015bci przy u\u017cyciu algorytm\u00f3w DXTn<\/a><\/noindex>. Crunch wspiera formaty tekstur DXT1\/5\/N i 3DC oraz mo\u017ce zapisywa\u0107 wyniki w formatach DDS, CRN i KTX. <\/p>\n

LZHAM dostarcza algorytm kompresji zoptymalizowany do pakowania zasob\u00f3w dostarczanych wraz z aplikacjami gier. Obs\u0142uguje API kompatybilne z Zlib. Do cech LZHAM nale\u017cy mo\u017cliwo\u015b\u0107
\nu\u017cywania tablic mapowania (o rozmiarze do 64 kB), s\u0142ownik\u00f3w (do 500 MB), rozdzielania operacji na wiele w\u0105tk\u00f3w oraz stosowania zmian delta, co pozwala na dystrybuowanie zmian bez ponownego pakowania ju\u017c skompresowanych plik\u00f3w.<\/p>\n

Pod wzgl\u0119dem poziomu kompresji i szybko\u015bci pakowania, implementacja LZHAM jest por\u00f3wnywalna z LZMA, ale w zakresie pr\u0119dko\u015bci dekompresji przewy\u017csza LZMA od 1,5 do 8 razy (jednak jest wolniejsza od zlib). W por\u00f3wnaniu do ZSTD, LZHAM przewy\u017csza ten algorytm pod wzgl\u0119dem efektywno\u015bci kompresji, ale niemal o rz\u0105d pozostaje w tyle pod wzgl\u0119dem szybko\u015bci kodowania i nieznacznie zostaje w tyle pod wzgl\u0119dem szybko\u015bci dekodowania.<\/p>\n

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

\u0179r\u00f3d\u0142o: opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0420\u0438\u0447 \u0413\u0435\u043b\u0434\u0440\u0438\u0445 (Rich Geldreich) \u043f\u0435\u0440\u0435\u0432\u0451\u043b \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0430\u043d\u043d\u044b\u0435 \u0438\u043c \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0438 \u0441\u0436\u0430\u0442\u0438\u044f LZHAM \u0438 Crunch \u0432 \u043a\u0430\u0442\u0435\u0433\u043e\u0440\u0438\u044e \u043e\u0431\u0449\u0435\u0441\u0442\u0432\u0435\u043d\u043d\u043e\u0433\u043e \u0434\u043e\u0441\u0442\u043e\u044f\u043d\u0438\u044f (Public Domain), \u0442.\u0435. \u043f\u043e\u043b\u043d\u043e\u0441\u0442\u044c\u044e \u043e\u0442\u043a\u0430\u0437\u0430\u043b\u0441\u044f \u043e\u0442 \u0438\u043c\u0443\u0449\u0435\u0441\u0442\u0432\u0435\u043d\u043d\u044b\u0445 \u0430\u0432\u0442\u043e\u0440\u0441\u043a\u0438\u0445 \u043f\u0440\u0430\u0432 \u0438 \u043f\u0440\u0435\u0434\u043e\u0441\u0442\u0430\u0432\u0438\u043b \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u044c \u0440\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044f \u0438 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u044f \u0432 \u043b\u044e\u0431\u043e\u0439 \u0444\u043e\u0440\u043c\u0435 \u0432\u0441\u0435\u043c\u0438 \u0431\u0435\u0437 \u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0435\u043d\u0438\u0439. \u0414\u043b\u044f \u044e\u0440\u0438\u0441\u0434\u0438\u043a\u0446\u0438\u0439, \u0433\u0434\u0435 \u043a\u0430\u0442\u0435\u0433\u043e\u0440\u0438\u044f \u043e\u0431\u0449\u0435\u0441\u0442\u0432\u0435\u043d\u043d\u043e\u0433\u043e \u0434\u043e\u0441\u0442\u043e\u044f\u043d\u0438\u044f \u043d\u0435 \u043f\u0440\u0438\u0437\u043d\u0430\u0451\u0442\u0441\u044f, \u043e\u0441\u0442\u0430\u0432\u043b\u0435\u043d\u044b \u0441\u043e\u043e\u0442\u0432\u0435\u0442\u0441\u0442\u0432\u0443\u044e\u0449\u0438\u0435 \u043e\u0433\u043e\u0432\u043e\u0440\u043a\u0438. \u0420\u0430\u043d\u0435\u0435 \u043f\u0440\u043e\u0435\u043a\u0442\u044b \u0440\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u044f\u043b\u0438\u0441\u044c \u043f\u043e\u0434 \u043b\u0438\u0446\u0435\u043d\u0437\u0438\u044f\u043c\u0438 MIT \u0438 […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-94546","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47Biblioteki kompresji LZHAM i Crunch zosta\u0142y przekazane do domeny publicznej | ProHoster","description":"Rich Geldreich przet\u0142umaczy\u0142 opracowane przez siebie biblioteki 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