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(source code of AROS port 1.0) The library is fast, AmigaOS friendly TrueType render engine. It has nothing to do with Amiga outline font system. This system has a lot of limitations which make it useless for high speed and quality text output. If someone wants an integration of TrueType with AmigaOS bullet.library like outline font system, should consider using ttf.library. Ttengine.library opens TrueType font by itself and renders high quality glyphs directly into any RastPort. The render engine of the library is based on FreeType2 project (http://www.freetype.org). This version of ttengine.library uses 2.1.3 FreeType build. See http://amiga.pl/ttengine for news, downloads, online autodoc and programming tutorial. CHANGES (last three versions) v 7.2 (22.12.2005) - Final version of direct rendering callback for BGRA32 screenmode. - Added handling of fonts with MS Symbol names encoding (Marlett). - Fixed possible hits in the database parser. v 7.1 (15.03.2005) - Native AmigaOS 4 version compiled by Andreas Falkenhahn. - Mask and render buffers are now allocated for every RastPort, no more global. It fixes problems with multiple processes accessing TTEngine simultaneously (trashes instead of text). v 7.0 (12.01.2005) - Realtime font preview in the font requester. - Introduced new metrics mode designed for text-oriented applications, especially using JAM2 drawmode. Mode is turned on by specifying TT_DiskFontMetrics, TRUE in TT_SetAttrs(). In this mode filled JAM2 area has always height equal to TT_FontHeight (which is a sum of TT_FontMaxTop and TT_FontMaxBottom). Horizontally JAM2 area is set to cursor advance (it creates continuous filling even if TT_Text is called char-by-char). - New metrics attributes: TT_FontHeight (sum of TT_FontMaxTop and TT_FontMaxBottom), TT_FontBaseline (alias for TT_FontMaxTop) and TT_FontWidth (cursor advance, only for monospaced fonts). - TTEngine now distincts monospaced fonts. TT_FontFixedWidth can be specified for TT_OpenFont(), function will fail on proportional font. The attribute is also gettable with TT_GetAttrs(). TTRQ_FixedWidthOnly attribute may be passed to TT_Request() to filter proportional fonts out. - TTEManager 1.2: cache size and global gamma settings. Fixed font window refresh deadlock under MorphOS. - New API functions: TT_ObtainFamilyListA(), TT_FreeFamilyList. FEATURES The library expands FreeType functionality making usage of TrueType fonts easy and comfortable. Below you can find key features: - renders whole strings (not single glyphs) with kerning. - antialiasing to any (not neccesarily uniform color) background. - user adjustable gamma correction. - optional text transparency. - system compatible output to any (including planar) RastPort. - supports JAM1. JAM2, INVERSVID, COMPLEMENT RastPort modes. - supports 8-bit to Unicode mapping with "ENV:ttfcodepage" table compatible with ttf.library. - allows for direct 16/32-bit Unicode string rendering. - supports ISO-8859 and UTF-8 text encodings. - easy to use, graphics.library like API. - efficient system-wide glyph cache system. - font database system allows flexible font files storage and advanced faces classification.
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