normalize.h (1301B)
1 /* Copyright 2013 Google Inc. All Rights Reserved. 2 3 Distributed under MIT license. 4 See file LICENSE for detail or copy at https://opensource.org/licenses/MIT 5 */ 6 7 /* Functions for normalizing fonts. Since the WOFF 2.0 decoder creates font 8 files in normalized form, the WOFF 2.0 conversion is guaranteed to be 9 lossless (in a bitwise sense) only for normalized font files. */ 10 11 #ifndef WOFF2_NORMALIZE_H_ 12 #define WOFF2_NORMALIZE_H_ 13 14 namespace woff2 { 15 16 struct Font; 17 struct FontCollection; 18 19 // Changes the offset fields of the table headers so that the data for the 20 // tables will be written in order of increasing tag values, without any gaps 21 // other than the 4-byte padding. 22 bool NormalizeOffsets(Font* font); 23 24 // Changes the checksum fields of the table headers and the checksum field of 25 // the head table so that it matches the current data. 26 bool FixChecksums(Font* font); 27 28 // Parses each of the glyphs in the font and writes them again to the glyf 29 // table in normalized form, as defined by the StoreGlyph() function. Changes 30 // the loca table accordigly. 31 bool NormalizeGlyphs(Font* font); 32 33 // Performs all of the normalization steps above. 34 bool NormalizeFont(Font* font); 35 bool NormalizeFontCollection(FontCollection* font_collection); 36 37 } // namespace woff2 38 39 #endif // WOFF2_NORMALIZE_H_