40 lines
1.3 KiB
C++
40 lines
1.3 KiB
C++
/* Copyright 2013 Google Inc. All Rights Reserved.
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Distributed under MIT license.
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See file LICENSE for detail or copy at https://opensource.org/licenses/MIT
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*/
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/* Functions for normalizing fonts. Since the WOFF 2.0 decoder creates font
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files in normalized form, the WOFF 2.0 conversion is guaranteed to be
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lossless (in a bitwise sense) only for normalized font files. */
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#ifndef WOFF2_NORMALIZE_H_
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#define WOFF2_NORMALIZE_H_
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namespace woff2 {
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struct Font;
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struct FontCollection;
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// Changes the offset fields of the table headers so that the data for the
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// tables will be written in order of increasing tag values, without any gaps
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// other than the 4-byte padding.
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bool NormalizeOffsets(Font* font);
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// Changes the checksum fields of the table headers and the checksum field of
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// the head table so that it matches the current data.
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bool FixChecksums(Font* font);
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// Parses each of the glyphs in the font and writes them again to the glyf
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// table in normalized form, as defined by the StoreGlyph() function. Changes
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// the loca table accordigly.
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bool NormalizeGlyphs(Font* font);
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// Performs all of the normalization steps above.
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bool NormalizeFont(Font* font);
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bool NormalizeFontCollection(FontCollection* font_collection);
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} // namespace woff2
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#endif // WOFF2_NORMALIZE_H_
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