Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 39 insertions, 0 deletions

diff --git a/modules/woff2/src/normalize.h b/modules/woff2/src/normalize.h
new file mode 100644
index 0000000000..c6fee74db6
--- /dev/null
+++ b/modules/woff2/src/normalize.h
@@ -0,0 +1,39 @@
+/* Copyright 2013 Google Inc. All Rights Reserved.
+
+   Distributed under MIT license.
+   See file LICENSE for detail or copy at https://opensource.org/licenses/MIT
+*/
+
+/* Functions for normalizing fonts. Since the WOFF 2.0 decoder creates font
+   files in normalized form, the WOFF 2.0 conversion is guaranteed to be
+   lossless (in a bitwise sense) only for normalized font files. */
+
+#ifndef WOFF2_NORMALIZE_H_
+#define WOFF2_NORMALIZE_H_
+
+namespace woff2 {
+
+struct Font;
+struct FontCollection;
+
+// Changes the offset fields of the table headers so that the data for the
+// tables will be written in order of increasing tag values, without any gaps
+// other than the 4-byte padding.
+bool NormalizeOffsets(Font* font);
+
+// Changes the checksum fields of the table headers and the checksum field of
+// the head table so that it matches the current data.
+bool FixChecksums(Font* font);
+
+// Parses each of the glyphs in the font and writes them again to the glyf
+// table in normalized form, as defined by the StoreGlyph() function. Changes
+// the loca table accordigly.
+bool NormalizeGlyphs(Font* font);
+
+// Performs all of the normalization steps above.
+bool NormalizeFont(Font* font);
+bool NormalizeFontCollection(FontCollection* font_collection);
+
+} // namespace woff2
+
+#endif  // WOFF2_NORMALIZE_H_