| // Copyright 2014 The PDFium Authors |
| // 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 <stddef.h> |
| #include <stdint.h> |
| |
| #include <vector> |
| |
| #include "core/fxcodec/jbig2/JBig2_Define.h" |
| |
| class CJBig2_BitStream; |
| |
| class CJBig2_HuffmanTable { |
| public: |
| explicit CJBig2_HuffmanTable(size_t idx); |
| explicit CJBig2_HuffmanTable(CJBig2_BitStream* pStream); |
| ~CJBig2_HuffmanTable(); |
| |
| bool IsHTOOB() const { return HTOOB; } |
| uint32_t Size() const { return NTEMP; } |
| const std::vector<JBig2HuffmanCode>& GetCODES() const { return CODES; } |
| const std::vector<int>& GetRANGELEN() const { return RANGELEN; } |
| const std::vector<int>& GetRANGELOW() const { return RANGELOW; } |
| bool IsOK() const { return m_bOK; } |
| |
| constexpr static size_t kNumHuffmanTables = 16; |
| |
| private: |
| bool ParseFromStandardTable(size_t table_idx); |
| bool ParseFromCodedBuffer(CJBig2_BitStream* pStream); |
| void ExtendBuffers(bool increment); |
| |
| bool m_bOK; |
| bool HTOOB; |
| uint32_t NTEMP; |
| std::vector<JBig2HuffmanCode> CODES; |
| std::vector<int> RANGELEN; |
| std::vector<int> RANGELOW; |
| }; |
| |
| #endif // CORE_FXCODEC_JBIG2_JBIG2_HUFFMANTABLE_H_ |