>What is Amaya doing about languages needing shapers >like Thai? We're not yet so far...European languages (Polish, Russian, Greek), Hebrew, Yiddish is working, we're now integrating japanese.The big developpment done was our integration of "Bidi" edition / browsing mechanism.
>Amaya might be another customer for an integrated >Freetype, fontconfig, pango. We're already using Freetype 2 a rasterizer and Xft as a font selection mechanism that returns us filename and filepath. >Is Amaya using texture mapping with OpenGL for >anti-aliased fonts? FreeType 2 delivers a 256 level of gray bitmap of each character. We use the gray value as an opacity value associated to each pixel of that bitmap, and we get anti-aliasing.As the cost of transferring data is more important than the cost of building large bitmaps, we decided in our implementation to compose a bitmap word by word. This bitmap is then colored and displayed on the screen. As we needed to be fast on hardware and software OpenGL implementations (as Mesa), we use bitmap drawings (gldrawpixels), as texture mapping in software is just too slow. >Using the Freetype cache or >something else? We cache in our application only glyph used using our mechanism. (Transformation done on bitmap to invert it for opengl display cost too much to use the freetype caching system) (As it's fast enough we do not cache char index conversion and call FT_Get_Char_Index each time) > MahtML We used to compose MathML with symbol fonts, and specific drawing routines (radix, big parenthesis..) But I'm implementing a new code using of STIX fonts, as we can distribute them freely with Amaya. Each STIX has a specific charmap, unknow for all software (freetype, Xft). That's because as you can have the same character three times. The integral for one-line equation isn't the same that the one for three line equation. (Kformula (http://www.koffice.org/kformula/) and GtkMath (http://www.cs.unibo.it/helm/mml-widget/gtkmathview.html) use STIX fonts for correct render) http://www.ams.org/STIX/ and ftp://ftp.elsevier.nl/pub/styles/esstix/esstix.zip Amaya will be loading them by their filename, using a specific list in memory that permits to rely on <size, Unicode code, Character name, MathML Stix char code, Stix font, Amaya code.> (And I have to finish it before the MathML conference at the end of the month...) What are your plans using Opengl fonts ? -Paul http://www.w3.org/Amaya ps : You might be intersted by a C++ lib, FTGL (vector, texture, bitmap fonts with OpenGL) at http://homepages.paradise.net.nz/henryj/code/#FTGL _______________________________________________ Fonts mailing list [EMAIL PROTECTED] http://XFree86.Org/mailman/listinfo/fonts
