Thu, 15 Jan 2015 21:03:48 +0100
Integrate friendly tips from Tor colleagues to make (or not) 4.5 alpha 3;
This includes removal of overloaded (but unused) methods, and addition of
a overlooked call to DataStruct::SetData(nsISupports, uint32_t, bool.)
1 // Copyright (c) 2009 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #include "prep.h"
7 // prep - Control Value Program
8 // http://www.microsoft.com/typography/otspec/prep.htm
10 #define TABLE_NAME "prep"
12 namespace ots {
14 bool ots_prep_parse(OpenTypeFile *file, const uint8_t *data, size_t length) {
15 Buffer table(data, length);
17 OpenTypePREP *prep = new OpenTypePREP;
18 file->prep = prep;
20 if (length >= 128 * 1024u) {
21 return OTS_FAILURE_MSG("table length %ld > 120K", length); // almost all prep tables are less than 9k bytes.
22 }
24 if (!table.Skip(length)) {
25 return OTS_FAILURE_MSG("Failed to read table of length %ld", length);
26 }
28 prep->data = data;
29 prep->length = length;
30 return true;
31 }
33 bool ots_prep_should_serialise(OpenTypeFile *file) {
34 if (!file->glyf) return false; // this table is not for CFF fonts.
35 return g_transcode_hints && file->prep;
36 }
38 bool ots_prep_serialise(OTSStream *out, OpenTypeFile *file) {
39 const OpenTypePREP *prep = file->prep;
41 if (!out->Write(prep->data, prep->length)) {
42 return OTS_FAILURE_MSG("Failed to write table length");
43 }
45 return true;
46 }
48 void ots_prep_free(OpenTypeFile *file) {
49 delete file->prep;
50 }
52 } // namespace ots