diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /gfx/ots/src/prep.cc | |
parent | Initial commit. (diff) | |
download | firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'gfx/ots/src/prep.cc')
-rw-r--r-- | gfx/ots/src/prep.cc | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/gfx/ots/src/prep.cc b/gfx/ots/src/prep.cc new file mode 100644 index 0000000000..943bb45b91 --- /dev/null +++ b/gfx/ots/src/prep.cc @@ -0,0 +1,43 @@ +// Copyright (c) 2009-2017 The OTS 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 + +namespace ots { + +bool OpenTypePREP::Parse(const uint8_t *data, size_t length) { + Buffer table(data, length); + + if (length >= 128 * 1024u) { + // almost all prep tables are less than 9k bytes. + return Error("Table length %ld > 120K", length); + } + + if (!table.Skip(length)) { + return Error("Failed to read table of length %ld", length); + } + + this->m_data = data; + this->m_length = length; + return true; +} + +bool OpenTypePREP::Serialize(OTSStream *out) { + if (!out->Write(this->m_data, this->m_length)) { + return Error("Failed to write table length"); + } + + return true; +} + +bool OpenTypePREP::ShouldSerialize() { + return Table::ShouldSerialize() && + // this table is not for CFF fonts. + GetFont()->GetTable(OTS_TAG_GLYF) != NULL; +} + +} // namespace ots |