{"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\/da\/blog\/news\/biblioteki-szhatiya-lzham-i-crunch-perevedeny-v-obshhestvennoe-dostoyanie","title":{"rendered":"Bibliotekerne til komprimering LZHAM og Crunch er blevet oversat til det offentlige dom\u00e6ne","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Rich Geldreich oversat<\/a><\/noindex> de compressionsbiblioteker udviklet af ham LZHAM<\/a><\/noindex> og Crunch<\/a><\/noindex> til kategorien offentlig dom\u00e6ne<\/a><\/noindex> (Public Domain), dvs. han har helt opgivet de materielle ophavsretter og givet mulighed for distribution og brug i enhver form af alle uden begr\u00e6nsninger. For jurisdiktioner, hvor offentlig dom\u00e6ne ikke anerkendes, er der givet de relevante forbehold. Tidligere blev projekterne distribueret under MIT- og ZLIB-licenser.<\/p>\n

Crunch-biblioteket tilbyder midler til komprimering og rekodning af teksturer uden tab af kvalitet ved brug af algoritmerne DXTn<\/a><\/noindex>. Crunch underst\u00f8tter teksturformaterne DXT1\/5\/N og 3DC og kan gemme output i formaterne DDS, CRN og KTX. <\/p>\n

LZHAM leverer en komprimeringsalgoritme, der er optimeret til pakning af ressourcer leveret som en del af spilapplikationer. Der underst\u00f8ttes et API, der er kompatibelt med Zlib. Blandt LZHAM's funktioner er muligheden for
\nat bruge op til 64 KB mappingskaber, ordb\u00f8ger (op til 500 MB), parallelisering af operationer i flere tr\u00e5de og anvendelse af delta\u00e6ndringer, der muligg\u00f8r distribution af \u00e6ndringer uden at repacke allerede komprimerede filer.<\/p>\n

N\u00e5r man ser p\u00e5 komprimeringsniveau og pakkefart, er LZHAM's implementation sammenlignelig med LZMA, men n\u00e5r det g\u00e6lder hastigheden af dekomprimering, sl\u00e5r det LZMA med 1,5-8 gange (men langsommere end zlib). I sammenligning med ZSTD er LZHAM mere effektiv med hensyn til komprimering, men n\u00e6sten en orden langsommere i kodning og lidt langsommere i dekodning.<\/p>\n

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

Kilde: 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 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