{"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\/it\/blog\/novosti-interneta\/biblioteki-szhatiya-lzham-i-crunch-perevedeny-v-obshhestvennoe-dostoyanie","title":{"rendered":"Le librerie di compressione LZHAM e Crunch sono state trasferite nel dominio pubblico","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Rich Geldreich ha tradotto<\/a><\/noindex> le librerie di compressione da lui sviluppate LZHAM<\/a><\/noindex> e Crunch<\/a><\/noindex> nella categoria pubblico dominio<\/a><\/noindex> (Public Domain), ovvero ha rinunciato completamente ai diritti d'autore e ha consentito la distribuzione e l'uso in qualsiasi forma senza restrizioni. Per le giurisdizioni in cui la categoria di pubblico dominio non \u00e8 riconosciuta, sono state lasciate idonee clausole. I progetti precedenti erano distribuiti sotto le licenze MIT e ZLIB.<\/p>\n

La libreria Crunch fornisce strumenti per la compressione e la riconversione delle texture senza perdita di qualit\u00e0 utilizzando algoritmi DXTn<\/a><\/noindex>. Crunch supporta i formati di texture DXT1\/5\/N e 3DC e pu\u00f2 salvare il risultato nei formati DDS, CRN e KTX. <\/p>\n

LZHAM offre un algoritmo di compressione ottimizzato per l'imballaggio delle risorse fornite all'interno delle applicazioni di gioco. Supporta un'API compatibile con Zlib. Tra le caratteristiche di LZHAM si segnala la possibilit\u00e0
\ndi utilizzare tabelle di corrispondenza (fino a 64 KB), dizionari (fino a 500 MB), parallelizzazione delle operazioni su pi\u00f9 thread e applicazione di modifiche delta, consentendo di distribuire aggiornamenti senza la necessit\u00e0 di ricompattare i file gi\u00e0 compressi.<\/p>\n

Per livello di compressione e velocit\u00e0 di imballaggio, l'implementazione di LZHAM \u00e8 comparabile a LZMA, ma per velocit\u00e0 di decompressione supera LZMA da 1.5 a 8 volte (ma \u00e8 pi\u00f9 lenta di zlib). Rispetto a ZSTD, LZHAM supera questo algoritmo in termini di efficienza di compressione, ma \u00e8 quasi un ordine di grandezza pi\u00f9 lento nella velocit\u00e0 di codifica e leggermente pi\u00f9 lento nella velocit\u00e0 di decodifica.<\/p>\n

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

Fonte: 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-novosti-interneta"],"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\udd47Le librerie di compressione LZHAM e Crunch sono state trasferite nel pubblico dominio | ProHoster","description":"Rich Geldreich ha trasferito le librerie di compressione LZHAM e Crunch da lui sviluppate nella categoria del pubblico dominio (Public Domain), cio\u00e8 ha completamente rinunciato ai diritti d'autore e ha fornito la possibilit\u00e0 di distribuzione e utilizzo in qualsiasi forma da parte di tutti senza restrizioni. 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