140 lines
6.7 KiB
Plaintext
140 lines
6.7 KiB
Plaintext
This file contains a list of various font formats. It gives the
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reference document and whether it is supported in FreeType 2.
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file type:
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The only special case is `MAC'; on older Mac OS versions, a `file'
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is stored as a data and a resource fork, this is, within two
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separate data chunks. In all other cases, the font data is stored
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in a single file.
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wrapper format:
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The format used to represent the font data. In the table below it
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is used only if the font format differs. Possible values are
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`SFNT' (binary), `PS' (a text header, followed by binary or text
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data), and `LZW' (compressed with either `gzip' or `compress').
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font format:
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How the font is to be accessed, possibly after converting the file
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type and wrapper format into a generic form. Bitmap formats are
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`BDF', `PCF', and one form of `WINFNT'; all others are vector
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formats.
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font type:
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Sub-formats of the font format. `SBIT' and `MACSBIT' are bitmap
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formats, `MM' and `VAR' support optical axes.
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glyph access:
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If not specified, the glyph access is `standard' to the font
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format. Values are `CID' for CID-keyed fonts, `SYNTHETIC' for
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fonts which are modified versions of other fonts by means of a
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transformation matrix, `COLLECTION' for collecting multiple fonts
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(sharing most of the data) into a single file, and `TYPE_0' for PS
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fonts which are to be accessed in a tree-like structure.
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FreeType driver:
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The module in the FreeType library which handles the specific font
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format. A missing entry means that FreeType doesn't support the
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font format (yet).
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Please send additions and/or corrections to wl@gnu.org or to the
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FreeType developer's list at devel@freetype (for subscribers only). If
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you can provide a font example for a format which isn't supported yet
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please send a mail too.
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file wrapper font font glyph FreeType reference
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type format format type access driver documents
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----------------------------------------------------------------------------
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--- --- BDF --- --- bdf 5005.BDF_Spec.pdf, X11
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--- SFNT PS TYPE_1 --- --- Type 1 GX Font Format
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(for the Mac)
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MAC SFNT PS TYPE_1 --- --- Type 1 GX Font Format
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(for the Mac)
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--- SFNT PS TYPE_1 CID --- 5180.sfnt.pdf (for the Mac)
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MAC SFNT PS TYPE_1 CID --- 5180.sfnt.pdf (for the Mac)
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--- SFNT PS CFF --- cff OT spec, 5176.CFF.pdf
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(`OTTO' format)
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MAC SFNT PS CFF --- cff OT spec, 5176.CFF.pdf
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(`OTTO' format)
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--- SFNT PS CFF CID cff OT spec, 5176.CFF.pdf
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MAC SFNT PS CFF CID cff OT spec, 5176.CFF.pdf
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--- SFNT PS CFF SYNTHETIC --- OT spec, 5176.CFF.pdf
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MAC SFNT PS CFF SYNTHETIC --- OT spec, 5176.CFF.pdf
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--- SFNT TT SBIT --- --- XFree86? (bitmaps only;
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`head' table)
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--- SFNT TT MACSBIT --- sfnt OT spec (for the Mac;
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bitmaps only; `bhed' table)
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MAC SFNT TT MACSBIT --- sfnt OT spec (for the Mac;
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bitmaps only; `bhed' table)
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--- SFNT TT --- --- truetype OT spec (`normal' TT font)
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MAC SFNT TT --- --- truetype OT spec (`normal' TT font)
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MAC SFNT TT VAR --- truetype GX spec (`?var' tables)
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--- SFNT TT --- COLLECTION truetype OT spec (this can't be CFF)
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MAC SFNT TT --- COLLECTION truetype OT spec (this can't be CFF)
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--- --- PS TYPE_1 --- type1 T1_SPEC.pdf
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(`normal' Type 1 font)
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MAC --- PS TYPE_1 --- type1 T1_SPEC.pdf
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(`normal' Type 1 font)
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--- --- PS TYPE_1 CID cid PLRM.pdf (CID Font Type 0;
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Type 9 font)
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--- --- PS MM --- type1 5015.Type1_Supp.pdf
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(Multiple Masters)
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--- --- PS CFF --- cff 5176.CFF.pdf (`pure' CFF)
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--- --- PS CFF CID cff 5176.CFF.pdf (`pure' CFF)
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--- --- PS CFF SYNTHETIC --- 5176.CFF.pdf (`pure' CFF)
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--- PS PS CFF --- --- PLRM.pdf (Type 2) [1]
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--- PS PS CFF CID --- PLRM.pdf (Type 2) [1]
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--- PS PS CFF SYNTHETIC --- PLRM.pdf (Type 2) [1]
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--- --- PS --- TYPE_0 --- PLRM.pdf
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--- --- PS TYPE_3 --- --- PLRM.pdf (never supported)
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--- --- PS TYPE_3 CID --- PLRM.pdf (CID Font Type 1;
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Type 10 font; never supported)
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--- PS PS TYPE_14 --- --- PLRM.pdf (Chameleon font;
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Type 14 font; never supported?)
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--- --- PS TYPE_32 CID --- PLRM.pdf (CID Font Type 4;
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Type 32 font; never supported?)
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--- PS TT --- --- type42 5012.Type42_Spec.pdf
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(Type 42 font)
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--- PS TT --- CID --- PLRM.pdf (CID Font Type 2;
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Type 11 font)
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--- ? ? CEF ? cff ?
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--- --- PCF --- --- pcf X11
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--- LZW PCF --- --- pcf X11
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--- --- PFR PFR0 --- pfr [2]
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--- --- PFR PFR1 --- --- (undocumented, proprietary;
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probably never supported)
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--- --- WINFNT --- --- winfonts MS Windows 3 Developer's Notes
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--- --- WINFNT VECTOR --- --- MS Windows 3 Developer's Notes
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[1] Support should be rather simple since this is identical to `CFF'
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but in a PS wrapper.
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[2] Official PFR specification:
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http://www.bitstream.com/categories/developer/truedoc/pfrspec.html
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http://www.bitstream.com/categories/developer/truedoc/pfrspec1.2.pdf
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The syntax of the auxiliary data is not defined there, but is partially
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defined in MHP 1.0.3 (also called ETSI TS 101812 V1.3.1) section 7.4.
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http://www.etsi.org/
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http://webapp.etsi.org/workprogram/Report_WorkItem.asp?WKI_ID=18799
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(free registration required).
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