Update OTS to revision a7a3b94

third_party/ots/src/prep.cc

 // Copyright (c) 2009 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "prep.h"
 
 // prep - Control Value Program
 // http://www.microsoft.com/typography/otspec/prep.htm
 
 #define TABLE_NAME "prep"
 
 namespace ots {
 
-bool ots_prep_parse(OpenTypeFile *file, const uint8_t *data, size_t length) {
+bool ots_prep_parse(Font *font, const uint8_t *data, size_t length) {
   Buffer table(data, length);
 
   OpenTypePREP *prep = new OpenTypePREP;
-  file->prep = prep;
+  font->prep = prep;
 
   if (length >= 128 * 1024u) {
     return OTS_FAILURE_MSG("table length %ld > 120K", length);  // almost all prep tables are less than 9k bytes.
   }
 
   if (!table.Skip(length)) {
     return OTS_FAILURE_MSG("Failed to read table of length %ld", length);
   }
 
   prep->data = data;
   prep->length = length;
   return true;
 }
 
-bool ots_prep_should_serialise(OpenTypeFile *file) {
-  if (!file->glyf) return false;  // this table is not for CFF fonts.
-  return file->prep != NULL;
+bool ots_prep_should_serialise(Font *font) {
+  if (!font->glyf) return false;  // this table is not for CFF fonts.
+  return font->prep != NULL;
 }
 
-bool ots_prep_serialise(OTSStream *out, OpenTypeFile *file) {
-  const OpenTypePREP *prep = file->prep;
+bool ots_prep_serialise(OTSStream *out, Font *font) {
+  const OpenTypePREP *prep = font->prep;
 
   if (!out->Write(prep->data, prep->length)) {
     return OTS_FAILURE_MSG("Failed to write table length");
   }
 
   return true;
 }
 
-void ots_prep_free(OpenTypeFile *file) {
-  delete file->prep;
+void ots_prep_reuse(Font *font, Font *other) {
+  font->prep = other->prep;
+  font->prep_reused = true;
+}
+
+void ots_prep_free(Font *font) {
+  delete font->prep;
 }
 
 }  // namespace ots
 
 #undef TABLE_NAME