diff options
Diffstat (limited to 'core/fxcodec/jbig2/JBig2_HuffmanTable.h')
-rw-r--r-- | core/fxcodec/jbig2/JBig2_HuffmanTable.h | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/core/fxcodec/jbig2/JBig2_HuffmanTable.h b/core/fxcodec/jbig2/JBig2_HuffmanTable.h new file mode 100644 index 0000000000..892c19e9d6 --- /dev/null +++ b/core/fxcodec/jbig2/JBig2_HuffmanTable.h @@ -0,0 +1,50 @@ +// Copyright 2014 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 + +#ifndef CORE_FXCODEC_JBIG2_JBIG2_HUFFMANTABLE_H_ +#define CORE_FXCODEC_JBIG2_JBIG2_HUFFMANTABLE_H_ + +#include <vector> + +#include "core/include/fxcrt/fx_system.h" + +class CJBig2_BitStream; +struct JBig2TableLine; + +class CJBig2_HuffmanTable { + public: + CJBig2_HuffmanTable(const JBig2TableLine* pTable, + FX_DWORD nLines, + bool bHTOOB); + + explicit CJBig2_HuffmanTable(CJBig2_BitStream* pStream); + + ~CJBig2_HuffmanTable(); + + bool IsHTOOB() const { return HTOOB; } + FX_DWORD Size() const { return NTEMP; } + const std::vector<int>& GetCODES() const { return CODES; } + const std::vector<int>& GetPREFLEN() const { return PREFLEN; } + const std::vector<int>& GetRANGELEN() const { return RANGELEN; } + const std::vector<int>& GetRANGELOW() const { return RANGELOW; } + bool IsOK() const { return m_bOK; } + + private: + void ParseFromStandardTable(const JBig2TableLine* pTable); + bool ParseFromCodedBuffer(CJBig2_BitStream* pStream); + void InitCodes(); + void ExtendBuffers(bool increment); + + bool m_bOK; + bool HTOOB; + FX_DWORD NTEMP; + std::vector<int> CODES; + std::vector<int> PREFLEN; + std::vector<int> RANGELEN; + std::vector<int> RANGELOW; +}; + +#endif // CORE_FXCODEC_JBIG2_JBIG2_HUFFMANTABLE_H_ |