{"id":183809,"date":"2026-10-13T16:53:22","date_gmt":"2026-10-13T14:53:22","guid":{"rendered":"https:\/\/prohoster.info\/blog\/news\/reliz-shriftovogo-dvizhka-freetype-2-15"},"modified":"2026-10-13T16:53:27","modified_gmt":"2026-10-13T14:53:27","slug":"freetype-2-15-font-engine-released","status":"publish","type":"post","link":"https:\/\/prohoster.info\/da\/blog\/news\/freetype-2-15-font-engine-released","title":{"rendered":"Release of the FreeType font engine 2.15","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Efter et \u00e5rs udvikling er FreeType 2.15.0, en modul\u00e6r skrifttype-motor, blevet frigivet, som tilbyder et ensartet API til standardisering af behandling og output af skrifttypedata i forskellige vektor- og rasterformater. Projektkoden er skrevet i C og distribueres under en BSD-lignende licens for FreeType. <\/p>\n<p>Blandt \u00e6ndringerne:<\/p>\n<ul>\n<li class=\"l\"> Underst\u00f8ttelse af den femte udgave af ISO Open Font-formatet (ISO\/IEC 14496-22:2026) er blevet tilf\u00f8jet, portet ved hj\u00e6lp af AI fra HarfBuzz-glyph layoutbiblioteket og andre implementeringer. I mods\u00e6tning til fjerde udgave, der blev udgivet i 2019, er der i den nye version af Open Font-formatet mulighed for at inkludere over 65536 glyphs; der er tilf\u00f8jet en &#171;GLYF&#187;-tabel til konturer, der kombinerer kubiske og koniske segmenter; der er foresl\u00e5et en mere kompakt version af &#171;VARC&#187;-tabellen, som g\u00f8r det muligt at reducere st\u00f8rrelsen p\u00e5 variable skrifttyper med tegn med 90%.\n<li class=\"l\"> I rasterisereren, der sikrer antialiasing, er ydeevnen ved rendering af glyphs over 40 ppem v\u00e6sentligt forbedret takket v\u00e6re dynamisk hukommelsesallokering til store glyphs.\n<li class=\"l\"> En eksperimentel driver til HVF (Hierarchical Variation Font) skrifttyper er tilf\u00f8jet, leveret af Apple og fungerer i \u00f8jeblikket kun p\u00e5 macOS.\n<li class=\"l\"> I TrueType-formatfortolkeren er der blevet udvidet st\u00f8tte til ClearType-teknologien, som har forbedret kvaliteten af renderingen af skrifttyper som &#8216;Comic Sans MS&#8217;, &#8216;Segoe UI&#8217;, &#8216;Calibri&#8217;, &#8216;Corbel&#8217;, &#8216;Constantia&#8217;, &#8216;Malgun Gothic&#8217; og &#8216;SimSun&#8217;. Der er sikret brug af data fra gasp-tabellen (Grid-fitting and Scan-conversion Procedure) til glatning og justering til pixelskabelonen, forbedret efterligning af horisontal ClearType-hinting, forbedret behandling af glyph-rundingsinstruktionen (ROUND) og anvendelse af kontrolv\u00e6rdier (CVT &#8212; Control Value Table).\n<li class=\"l\"> En port til operativsystemet Plan 9 er tilf\u00f8jet.\n<li class=\"l\"> S\u00e5rbarheder er blevet rettet: CVE-2026-95512 &#8212; hukommelsesudmattelse og h\u00f8j CPU-belastning ved behandling af specielt formaterede CID-skrifttyper; CVE-2026-50811 &#8212; l\u00e6sning uden for bufferet ved brug af funktionerne TT_Get_Var_Design og T_Get_Var_Design_Coordinates; CVE-2026-27171 &#8212; s\u00e5rbarhed i gammel indbygget kode fra zlib, som f\u00f8rer til uendelig l\u00f8kke.\n<\/ul>\n<p>Kilde: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=66454\">opennet.ru<\/a> 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