{"id":81072,"date":"2020-05-10T19:42:00","date_gmt":"2020-05-10T17:42:00","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/razrabotchiki-steka-shriftov-linux-otkazalis-ot-podderzhki-myagkogo-sglazhivaniya"},"modified":"2020-05-10T19:42:00","modified_gmt":"2020-05-10T17:42:00","slug":"razrabotchiki-steka-shriftov-linux-otkazalis-ot-podderzhki-myagkogo-sglazhivaniya","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sq\/blog\/news\/razrabotchiki-steka-shriftov-linux-otkazalis-ot-podderzhki-myagkogo-sglazhivaniya","title":{"rendered":"Zhvilluesit e stakut t\u00eb fonteve Linux kan\u00eb hequr dor\u00eb nga mb\u00ebshtetja p\u00ebr zbutjen e but\u00eb t\u00eb skajeve","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Disa disa p\u00ebrdorues q\u00eb p\u00ebrdorin metod\u00ebn e hintonit «hintfull», mund t\u00eb ken\u00eb v\u00ebn\u00eb re se kur kaluan nga versioni Pango 1.43 n\u00eb 1.44 kerning<\/a><\/noindex> disa familje fontesh ka degeneruar<\/a><\/noindex> ose plot\u00ebsisht<\/a><\/noindex> ka d\u00ebshtuar<\/a><\/noindex>.<\/p>\n

\"Zhvilluesit<\/a><\/noindex><\/center><\/p>\n

Problemi shkaktohet nga fakti se biblioteka Pango<\/a><\/noindex> ka kaluar nga p\u00ebrdorimi i FreeType<\/a><\/noindex> p\u00ebr t\u00eb marr\u00eb informacion mbi kerning (distanc\u00ebn midis glif\u00ebve) t\u00eb fonteve n\u00eb HarfBuzz<\/a><\/noindex>, dhe zhvilluesit e saj kan\u00eb vendosur t\u00eb mos mb\u00ebshtesin<\/a><\/noindex> rrug\u00ebn e zgjedhjes s\u00eb shkrimeve sipas metod\u00ebs «hintfull». V\u00ebrehet se n\u00eb ekranet me dend\u00ebsi t\u00eb lart\u00eb piksela (Hi-DPI) nuk ka probleme me shfaqjen e shkrimeve kur p\u00ebrdoren metoda t\u00eb hintonit, p\u00ebrve\u00e7 «hintfull».<\/p>\n

P\u00ebrgjigje<\/a><\/noindex> zhvilluesi i HarfBuzz (Behdad Esfahbod) nga diskutimi p\u00ebrkat\u00ebs n\u00eb lidhje me problemin:<\/p>\n

\n

Kam provuar t\u00eb p\u00ebrdor stile hintingu p\u00ebrve\u00e7 hintfull, por vet\u00ebm ai ofron paraqitjen e fonteve t\u00eb ngjashme me ClearType v2 n\u00eb Windows 7, e cila, sipas mendimit tim, ka renderimin m\u00eb t\u00eb mir\u00eb nga t\u00eb gjitha zgjidhjet ekzistuese.<\/i><\/p>\n

E v\u00ebrtet\u00eb. Prandaj ne vendos\u00ebm t\u00eb mos e mb\u00ebshtesim m\u00eb. Mund t\u00eb provoni t\u00eb s al\u0131\u015fni me renderimin «me sapun» ose t\u00eb p\u00ebrpiqeni t\u00eb gjeni di\u00e7ka tjet\u00ebr. Ju jeni duke p\u00ebrdorur Open Source, e kuptoni?<\/p><\/blockquote>\n<\/blockquote>\n

Nj\u00eb shtes\u00eb pas bisedave t\u00eb m\u00ebtejshme: <\/p>\n

N\u00eb komentet e m\u00ebvonshme, zhvilluesi shpjegoi<\/a><\/noindex>, q\u00eb software-i i lir\u00eb ofron mund\u00ebsin\u00eb e zgjedhjes dhe ata q\u00eb nuk jan\u00eb t\u00eb k\u00ebnaqur me gjendjen aktuale mund t\u00eb krijojn\u00eb nj\u00eb fork t\u00eb Pango. Zhvilluesit e HarfBuzz nuk mund t\u00eb ndikojn\u00eb n\u00eb mb\u00ebshtetje dhe vendimet q\u00eb merren n\u00eb t\u00eb. Behdad Esfahbod, mb\u00ebshtet\u00ebsi aktual i HarfBuzz, i cili \u00ebsht\u00eb n\u00eb vendin e par\u00eb p\u00ebr numrin e commit-ev<\/a><\/noindex>
\nka kaluar<\/a><\/noindex>, p\u00ebrmendi se ai nuk \u00ebsht\u00eb lidhur me Red Hat p\u00ebr m\u00eb shum\u00eb se 10 vjet dhe nuk \u00ebsht\u00eb mb\u00ebshtet\u00ebs i Pango. Q\u00eb nga viti 2010 ai kaloi n\u00eb Google dhe tani merret vet\u00ebm me HarfBuzz, i cili m\u00eb p\u00ebrpara ishte projekti i tij personal. HarfBuzz nuk kontrollon<\/a><\/noindex> procesin e vizatimit dhe Pango mund t\u00eb rishkruaj\u00eb modelet e k\u00ebrkuara t\u00eb hinting n\u00eb an\u00ebn e saj. <\/p>\n

Nj\u00eb zhvillues tjet\u00ebr i HarfBuzz theksoi<\/a><\/noindex>, ka th\u00ebn\u00eb se problemi \u00ebsht\u00eb n\u00eb an\u00ebn e Pango, pasi HarfBuzz nuk \u00ebsht\u00eb nj\u00eb sistem renderimi fontesh dhe nuk mb\u00ebshtet hinting p\u00ebr shkak t\u00eb arkitektur\u00ebs s\u00eb tij. N\u00ebse Pango ka nevoj\u00eb p\u00ebr ruajtjen e hinting-ut, at\u00ebher\u00eb kalimi n\u00eb HarfBuzz nuk \u00ebsht\u00eb zgjedhja q\u00eb mund t\u00eb pres\u00eb mb\u00ebshtetje. N\u00eb kapacitet<\/a><\/noindex> Shkaqet p\u00ebr t'u refuzuar implementimi i hinting n\u00eb HarfBuzz p\u00ebrfshijn\u00eb faktin se disa moda hinting shkaktojn\u00eb ndryshimin e gjer\u00ebsis\u00eb fillestare t\u00eb glifit dhe ky ndryshim varet nga madh\u00ebsia me piksel. M\u00eb par\u00eb, Pango kryente operacione t\u00eb tilla p\u00ebrmes FreeType, i cili p\u00ebrkrahte hinting, por m\u00eb pas kaloi n\u00eb HarfBuzz, i cili siguron p\u00ebrpunimin e glifave pa lidhje me madh\u00ebsin\u00eb e tyre. Prandaj, zgjidhja e problemeve q\u00eb lindin gjat\u00eb p\u00ebrdorimit t\u00eb Pango bie n\u00eb p\u00ebrgjegj\u00ebsin\u00eb e Pango dhe jo t\u00eb HarfBuzz.<\/p>\n

N\u00eb fund t\u00eb fundit Behdad Esfahbod publikoi<\/a><\/noindex> nj\u00eb retrospektiv\u00eb t\u00eb madhe t\u00eb zhvillimit t\u00eb stak\u00ebs s\u00eb font\u00ebve t\u00eb Linux. Pas largimit t\u00eb tij n\u00eb Google, bibliotekat Pango dhe Cairo u lan\u00eb praktikisht n\u00eb harres\u00eb dhe ran\u00eb n\u00eb stagnim. N\u00eb HarfBuzz puna u fokusua n\u00eb mb\u00ebshtetje t\u00eb font\u00ebve t\u00eb ndryshuesh\u00ebm (variable-font), nd\u00ebrsa Red Hat p\u00ebrqendroi v\u00ebmendjen kryesore n\u00eb GTK dhe Glib. Me kalimin e koh\u00ebs, punimet n\u00eb fush\u00ebn e font\u00ebve t\u00eb ndryshuesh\u00ebm u transferuan n\u00eb FreeType, fontconfig dhe Cairo, por mbet\u00ebn t\u00eb pap\u00ebrfunduar n\u00eb Pango p\u00ebr shkak t\u00eb munges\u00ebs s\u00eb zhvilluesve. Qasja n\u00eb API-t\u00eb e reja n\u00eb Pango u ofrua p\u00ebrmes abstraksionit FontMap dhe u mb\u00ebshtet vet\u00ebm p\u00ebr backend-et e bazuara n\u00eb FreeType. Backend-et p\u00ebr Windows dhe macOS p\u00ebr m\u00eb shum\u00eb se 10 vjet kan\u00eb qen\u00eb pa mb\u00ebshtetje. <\/p>\n

Pas zgjerimit t\u00eb pajisjeve mobile dhe shfletuesve, Microsoft ndali n\u00eb Windows 8 mb\u00ebshtetje p\u00ebr renderimin subpixele t\u00eb shkrimeve dhe renditjen n\u00eb stilin GDI. macOS gjithmon\u00eb e ka mb\u00ebshtetur renderimin q\u00eb n\u00eb k\u00ebt\u00eb diskutim quhet «i mjegullt». Q\u00eb nga viti 2018, disa zhvillues t\u00eb HarfBuzz p\u00ebrpiqen t\u00eb transferojn\u00eb mund\u00ebsit\u00eb q\u00eb jan\u00eb shtuar n\u00eb vitet e fundit nga HarfBuzz n\u00eb Pango. Paralelisht, gjat\u00eb zhvillimit t\u00eb GTK4 u realizua kalimi n\u00eb renderim mbi baz\u00ebn e OpenGL, q\u00eb n\u00ebnkupton p\u00ebrmasimin linear t\u00eb tekstit, duke akcentuar p\u00ebrballjen midis renderimit pikselor dhe renditjes s\u00eb shkall\u00ebzuar.<\/p>\n

LibreOffice, Chrome dhe Firefox kaluan n\u00eb p\u00ebrdorimin e HarfBuzz si nj\u00eb motor unifikues t\u00eb shaping, me \u00e7mimin e ndalimit t\u00eb mb\u00ebshtetjes p\u00ebr font\u00ebt raster dhe formatin Type1. P\u00ebr ata q\u00eb kan\u00eb nevoj\u00eb p\u00ebr font\u00ebt raster, u ofruan t\u00eb kthehen n\u00eb nj\u00eb kontejner OpenType. N\u00eb Adobe u d\u00ebrgua nj\u00eb k\u00ebrkes\u00eb p\u00ebr implementimin e Type1 p\u00ebr HarfBuzz, por ata u p\u00ebrgjigj\u00ebn se nuk ka kuptim, pasi vet\u00eb po ndalin mb\u00ebshtetjen p\u00ebr Type1 k\u00ebt\u00eb vit. <\/p>\n

P\u00ebr t\u00eb mbajtur ritmin me teknologjit\u00eb q\u00eb kan\u00eb avancuar, nj\u00eb zgjidhje e ngjashme p\u00ebr kalimin n\u00eb HarfBuzz u miratua gjithashtu p\u00ebr bibliotek\u00ebn Pango. Kostoja ishte ndalimi i mb\u00ebshtetjes p\u00ebr disa teknologji t\u00eb vjetra, 20 vjet t\u00eb vjetra. \u00cbsht\u00eb theksuar se, duke marr\u00eb parasysh burimet e kufizuara t\u00eb zhvilluesve, nuk ka mjaft duar p\u00ebr t\u00eb b\u00ebr\u00eb gjith\u00e7ka dhe ata q\u00eb jan\u00eb t\u00eb interesuar p\u00ebr ruajtjen e teknologjive t\u00eb vjetra mund t\u00eb p\u00ebrpiqen t\u00eb gjejn\u00eb dik\u00eb q\u00eb \u00ebsht\u00eb gati t\u00eb merret me mb\u00ebshtetje t\u00eb funksionaliteteve q\u00eb u mungojn\u00eb. Si nj\u00eb krahasim, p\u00ebrmendet GNOME3, pas shfaqjes s\u00eb t\u00eb cilit ata q\u00eb ishin t\u00eb pak\u00ebnaqur arrit\u00ebn t\u00eb vazhdojn\u00eb zhvillimin e teknologjive t\u00eb vjetra GNOME2 n\u00eb kuad\u00ebr t\u00eb projekteve Mate dhe Cinnamon. E nj\u00ebjta gj\u00eb vlen edhe p\u00ebr Pango, por deri tani nuk ka pasur t\u00eb preferuar.<\/p>\n

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

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

\u041d\u0435\u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u0438, \u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044e\u0442 \u043c\u0435\u0442\u043e\u0434 \u0445\u0438\u043d\u0442\u0438\u043d\u0433\u0430 «hintfull», \u043c\u043e\u0433\u043b\u0438 \u0437\u0430\u043c\u0435\u0442\u0438\u0442\u044c, \u0447\u0442\u043e \u043f\u0440\u0438 \u043f\u0435\u0440\u0435\u0445\u043e\u0434\u0435 \u0441 \u0432\u0435\u0440\u0441\u0438\u0438 Pango 1.43 \u043d\u0430 1.44 \u043a\u0451\u0440\u043d\u0438\u043d\u0433 \u043d\u0435\u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u0441\u0435\u043c\u0435\u0439\u0441\u0442\u0432 \u0448\u0440\u0438\u0444\u0442\u043e\u0432 \u0443\u0445\u0443\u0434\u0448\u0438\u043b\u0441\u044f \u0438\u043b\u0438 \u043f\u043e\u043b\u043d\u043e\u0441\u0442\u044c\u044e \u0441\u043b\u043e\u043c\u0430\u043b\u0441\u044f. \u041f\u0440\u043e\u0431\u043b\u0435\u043c\u0430 \u0432\u044b\u0437\u0432\u0430\u043d\u0430 \u0442\u0435\u043c, \u0447\u0442\u043e \u0431\u0438\u0431\u043b\u0438\u043e\u0442\u0435\u043a\u0430 Pango \u043f\u0435\u0440\u0435\u0448\u043b\u0430 \u043e\u0442 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u044f FreeType \u0434\u043b\u044f \u043f\u043e\u043b\u0443\u0447\u0435\u043d\u0438\u044f \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u0438 \u043e \u043a\u0451\u0440\u043d\u0438\u043d\u0433\u0435 (\u0440\u0430\u0441\u0441\u0442\u043e\u044f\u043d\u0438\u0438 \u043c\u0435\u0436\u0434\u0443 \u0433\u043b\u0438\u0444\u0430\u043c\u0438) \u0448\u0440\u0438\u0444\u0442\u043e\u0432 \u043a HarfBuzz, \u0430 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0438 \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0435\u0433\u043e \u043f\u0440\u0438\u043d\u044f\u043b\u0438 \u0440\u0435\u0448\u0435\u043d\u0438\u0435 \u043d\u0435 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u0442\u044c \u0441\u0433\u043b\u0430\u0436\u0438\u0432\u0430\u043d\u0438\u0435 […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":81073,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-81072","post","type-post","status-publish","format-standard","has-post-thumbnail","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\udd47Zhvilluesit e grupeve t\u00eb shkrimeve Linux hoq\u00ebn dor\u00eb nga mb\u00ebshtetje p\u00ebr antialiasing | ProHoster","description":"Disa p\u00ebrdorues q\u00eb p\u00ebrdorin metod\u00ebn e hintimit \"hintfull\" mund t\u00eb ken\u00eb v\u00ebn\u00eb re se kur kaluan nga versioni Pango 1.43 n\u00eb 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