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author | dsinclair <dsinclair@chromium.org> | 2016-10-04 11:55:50 -0700 |
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committer | Commit bot <commit-bot@chromium.org> | 2016-10-04 11:55:51 -0700 |
commit | 488b7ad845d6de212d89cd957303b294ecfa5922 (patch) | |
tree | adfdd2327724bd3597a1a7614bbe29a01a0c8dc0 /core/fpdfapi/parser/cpdf_stream_acc.cpp | |
parent | 41872fa5ac7448a50f66ad56d7bde8d1aa77db4b (diff) | |
download | pdfium-488b7ad845d6de212d89cd957303b294ecfa5922.tar.xz |
Move core/fpdfapi/fpdf_parser to core/fpdfapi/parser
BUG=pdfium:603
Review-Url: https://codereview.chromium.org/2392603004
Diffstat (limited to 'core/fpdfapi/parser/cpdf_stream_acc.cpp')
-rw-r--r-- | core/fpdfapi/parser/cpdf_stream_acc.cpp | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/core/fpdfapi/parser/cpdf_stream_acc.cpp b/core/fpdfapi/parser/cpdf_stream_acc.cpp new file mode 100644 index 0000000000..e8bf6d7e15 --- /dev/null +++ b/core/fpdfapi/parser/cpdf_stream_acc.cpp @@ -0,0 +1,91 @@ +// Copyright 2016 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/parser/cpdf_stream_acc.h" + +#include "core/fpdfapi/parser/fpdf_parser_decode.h" + +CPDF_StreamAcc::CPDF_StreamAcc() + : m_pData(nullptr), + m_dwSize(0), + m_bNewBuf(FALSE), + m_pImageParam(nullptr), + m_pStream(nullptr), + m_pSrcData(nullptr) {} + +void CPDF_StreamAcc::LoadAllData(const CPDF_Stream* pStream, + FX_BOOL bRawAccess, + uint32_t estimated_size, + FX_BOOL bImageAcc) { + if (!pStream) + return; + + m_pStream = pStream; + if (pStream->IsMemoryBased() && + (!pStream->GetDict()->KeyExist("Filter") || bRawAccess)) { + m_dwSize = pStream->GetRawSize(); + m_pData = pStream->GetRawData(); + return; + } + uint8_t* pSrcData; + uint32_t dwSrcSize = pStream->GetRawSize(); + if (dwSrcSize == 0) + return; + + if (!pStream->IsMemoryBased()) { + pSrcData = m_pSrcData = FX_Alloc(uint8_t, dwSrcSize); + if (!pStream->ReadRawData(0, pSrcData, dwSrcSize)) + return; + } else { + pSrcData = pStream->GetRawData(); + } + if (!pStream->GetDict()->KeyExist("Filter") || bRawAccess) { + m_pData = pSrcData; + m_dwSize = dwSrcSize; + } else { + FX_BOOL bRet = PDF_DataDecode(pSrcData, dwSrcSize, m_pStream->GetDict(), + m_pData, m_dwSize, m_ImageDecoder, + m_pImageParam, estimated_size, bImageAcc); + if (!bRet) { + m_pData = pSrcData; + m_dwSize = dwSrcSize; + } + } + if (pSrcData != pStream->GetRawData() && pSrcData != m_pData) + FX_Free(pSrcData); + m_pSrcData = nullptr; + m_bNewBuf = m_pData != pStream->GetRawData(); +} + +CPDF_StreamAcc::~CPDF_StreamAcc() { + if (m_bNewBuf) + FX_Free(m_pData); + FX_Free(m_pSrcData); +} + +const uint8_t* CPDF_StreamAcc::GetData() const { + if (m_bNewBuf) + return m_pData; + return m_pStream ? m_pStream->GetRawData() : nullptr; +} + +uint32_t CPDF_StreamAcc::GetSize() const { + if (m_bNewBuf) + return m_dwSize; + return m_pStream ? m_pStream->GetRawSize() : 0; +} + +uint8_t* CPDF_StreamAcc::DetachData() { + if (m_bNewBuf) { + uint8_t* p = m_pData; + m_pData = nullptr; + m_dwSize = 0; + return p; + } + uint8_t* p = FX_Alloc(uint8_t, m_dwSize); + FXSYS_memcpy(p, m_pData, m_dwSize); + return p; +} |