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author | Nicolas Pena <npm@chromium.org> | 2017-05-15 14:49:44 -0400 |
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committer | Chromium commit bot <commit-bot@chromium.org> | 2017-05-15 19:23:54 +0000 |
commit | 4b78b18a87210d2d7550aa6c097f54ebf2c95e02 (patch) | |
tree | f04efca1ee7e0f2d8fb5752b8911fdb9fd0cac11 /core/fpdfapi/edit/cpdf_objectstream.cpp | |
parent | c4722a7a3b3274fb066c2aac4eb3717e648b3004 (diff) | |
download | pdfium-4b78b18a87210d2d7550aa6c097f54ebf2c95e02.tar.xz |
Remove unused flags from CPDF_Creator
The only user of CPDF_Creator is FPDF_Doc_Save, and it only uses flags 1
or 2 when calling Create. Thus, the other two flags will never be set.
Change-Id: Ib2eb0ce5585469c7749f0ab350855f1c6a2bba08
Reviewed-on: https://pdfium-review.googlesource.com/5491
Reviewed-by: Lei Zhang <thestig@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>
Commit-Queue: Nicolás Peña <npm@chromium.org>
Diffstat (limited to 'core/fpdfapi/edit/cpdf_objectstream.cpp')
-rw-r--r-- | core/fpdfapi/edit/cpdf_objectstream.cpp | 87 |
1 files changed, 0 insertions, 87 deletions
diff --git a/core/fpdfapi/edit/cpdf_objectstream.cpp b/core/fpdfapi/edit/cpdf_objectstream.cpp deleted file mode 100644 index 208adacf47..0000000000 --- a/core/fpdfapi/edit/cpdf_objectstream.cpp +++ /dev/null @@ -1,87 +0,0 @@ -// Copyright 2017 PDFium Authors. All rights reserved. -// Use of this source code is governed by a BSD-style license that can be -// found in the LICENSE file. - -// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com - -#include "core/fpdfapi/edit/cpdf_objectstream.h" - -#include "core/fpdfapi/edit/cpdf_creator.h" -#include "core/fpdfapi/edit/cpdf_encryptor.h" -#include "core/fpdfapi/edit/cpdf_flateencoder.h" -#include "core/fpdfapi/parser/fpdf_parser_utility.h" - -namespace { - -const int kObjectStreamMaxLength = 256 * 1024; - -} // namespace - -CPDF_ObjectStream::CPDF_ObjectStream() : m_dwObjNum(0), m_index(0) {} - -CPDF_ObjectStream::~CPDF_ObjectStream() {} - -bool CPDF_ObjectStream::IsNotFull() const { - return m_Buffer.GetLength() < kObjectStreamMaxLength; -} - -void CPDF_ObjectStream::Start() { - m_Items.clear(); - m_Buffer.Clear(); - m_dwObjNum = 0; - m_index = 0; -} - -void CPDF_ObjectStream::CompressIndirectObject(uint32_t dwObjNum, - const CPDF_Object* pObj) { - m_Items.push_back({dwObjNum, m_Buffer.GetLength()}); - m_Buffer << pObj; -} - -void CPDF_ObjectStream::CompressIndirectObject(uint32_t dwObjNum, - const uint8_t* pBuffer, - uint32_t dwSize) { - m_Items.push_back({dwObjNum, m_Buffer.GetLength()}); - m_Buffer.AppendBlock(pBuffer, dwSize); -} - -FX_FILESIZE CPDF_ObjectStream::End(CPDF_Creator* pCreator) { - ASSERT(pCreator); - - if (m_Items.empty()) - return 0; - - IFX_ArchiveStream* archive = pCreator->GetArchive(); - FX_FILESIZE ObjOffset = archive->CurrentOffset(); - if (!m_dwObjNum) - m_dwObjNum = pCreator->GetNextObjectNumber(); - - CFX_ByteTextBuf tempBuffer; - for (const auto& pair : m_Items) - tempBuffer << pair.objnum << " " << pair.offset << " "; - - if (!archive->WriteDWord(m_dwObjNum) || - !archive->WriteString(" 0 obj\r\n<</Type /ObjStm /N ") || - !archive->WriteDWord(pdfium::CollectionSize<uint32_t>(m_Items)) || - !archive->WriteString("/First ") || - !archive->WriteDWord(static_cast<uint32_t>(tempBuffer.GetLength())) || - !archive->WriteString("/Length ")) { - return -1; - } - tempBuffer << m_Buffer; - - CPDF_FlateEncoder encoder(tempBuffer.GetBuffer(), tempBuffer.GetLength(), - true, false); - CPDF_Encryptor encryptor(pCreator->GetCryptoHandler(), m_dwObjNum, - encoder.GetData(), encoder.GetSize()); - - if (!archive->WriteDWord(encryptor.GetSize()) || - !archive->WriteString("/Filter /FlateDecode") || - !archive->WriteString(">>stream\r\n") || - !archive->WriteBlock(encryptor.GetData(), encryptor.GetSize()) || - !archive->WriteString("\r\nendstream\r\nendobj\r\n")) { - return -1; - } - - return ObjOffset; -} |