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// 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 "sile.h"
namespace ots {
bool OpenTypeSILE::Parse(const uint8_t* data, size_t length) {
if (GetFont()->dropped_graphite) {
return Drop("Skipping Graphite table");
}
Buffer table(data, length);
if (!table.ReadU32(&this->version) || this->version >> 16 != 1) {
return DropGraphite("Failed to read valid version");
}
if (!table.ReadU32(&this->checksum)) {
return DropGraphite("Failed to read checksum");
}
if (!table.ReadU32(&this->createTime[0]) ||
!table.ReadU32(&this->createTime[1])) {
return DropGraphite("Failed to read createTime");
}
if (!table.ReadU32(&this->modifyTime[0]) ||
!table.ReadU32(&this->modifyTime[1])) {
return DropGraphite("Failed to read modifyTime");
}
if (!table.ReadU16(&this->fontNameLength)) {
return DropGraphite("Failed to read fontNameLength");
}
//this->fontName.resize(this->fontNameLength);
for (unsigned i = 0; i < this->fontNameLength; ++i) {
this->fontName.emplace_back();
if (!table.ReadU16(&this->fontName[i])) {
return DropGraphite("Failed to read fontName[%u]", i);
}
}
if (!table.ReadU16(&this->fontFileLength)) {
return DropGraphite("Failed to read fontFileLength");
}
//this->baseFile.resize(this->fontFileLength);
for (unsigned i = 0; i < this->fontFileLength; ++i) {
this->baseFile.emplace_back();
if (!table.ReadU16(&this->baseFile[i])) {
return DropGraphite("Failed to read baseFile[%u]", i);
}
}
if (table.remaining()) {
return Warning("%zu bytes unparsed", table.remaining());
}
return true;
}
bool OpenTypeSILE::Serialize(OTSStream* out) {
if (!out->WriteU32(this->version) ||
!out->WriteU32(this->checksum) ||
!out->WriteU32(this->createTime[0]) ||
!out->WriteU32(this->createTime[1]) ||
!out->WriteU32(this->modifyTime[0]) ||
!out->WriteU32(this->modifyTime[1]) ||
!out->WriteU16(this->fontNameLength) ||
!SerializeParts(this->fontName, out) ||
!out->WriteU16(this->fontFileLength) ||
!SerializeParts(this->baseFile, out)) {
return Error("Failed to write table");
}
return true;
}
} // namespace ots
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