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| 1 // Copyright 2016 PDFium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com | |
| 6 | |
| 7 #ifndef CORE_FPDFAPI_FPDF_PARSER_INCLUDE_CPDF_STREAM_H_ | |
| 8 #define CORE_FPDFAPI_FPDF_PARSER_INCLUDE_CPDF_STREAM_H_ | |
| 9 | |
| 10 #include <memory> | |
| 11 #include <set> | |
| 12 | |
| 13 #include "core/fpdfapi/fpdf_parser/include/cpdf_dictionary.h" | |
| 14 #include "core/fpdfapi/fpdf_parser/include/cpdf_object.h" | |
| 15 #include "core/fxcrt/include/fx_basic.h" | |
| 16 | |
| 17 class CPDF_Stream : public CPDF_Object { | |
| 18 public: | |
| 19 CPDF_Stream(); | |
| 20 | |
| 21 // Takes ownership of |pData| and |pDict|. | |
| 22 CPDF_Stream(uint8_t* pData, uint32_t size, CPDF_Dictionary* pDict); | |
| 23 | |
| 24 // CPDF_Object. | |
| 25 Type GetType() const override; | |
| 26 CPDF_Object* Clone() const override; | |
| 27 CPDF_Dictionary* GetDict() const override; | |
| 28 CFX_WideString GetUnicodeText() const override; | |
| 29 bool IsStream() const override; | |
| 30 CPDF_Stream* AsStream() override; | |
| 31 const CPDF_Stream* AsStream() const override; | |
| 32 | |
| 33 uint32_t GetRawSize() const { return m_dwSize; } | |
| 34 uint8_t* GetRawData() const { return m_pDataBuf.get(); } | |
| 35 | |
| 36 // Does not takes onwership of |pData|, copies into internally-owned buffer. | |
| 37 void SetData(const uint8_t* pData, uint32_t size); | |
| 38 | |
| 39 void InitStream(const uint8_t* pData, uint32_t size, CPDF_Dictionary* pDict); | |
| 40 void InitStreamFromFile(IFX_FileRead* pFile, CPDF_Dictionary* pDict); | |
| 41 | |
| 42 FX_BOOL ReadRawData(FX_FILESIZE start_pos, | |
| 43 uint8_t* pBuf, | |
| 44 uint32_t buf_size) const; | |
| 45 | |
| 46 bool IsMemoryBased() const { return m_bMemoryBased; } | |
| 47 | |
| 48 protected: | |
| 49 ~CPDF_Stream() override; | |
| 50 CPDF_Object* CloneNonCyclic( | |
| 51 bool bDirect, | |
| 52 std::set<const CPDF_Object*>* pVisited) const override; | |
| 53 | |
| 54 std::unique_ptr<CPDF_Dictionary, ReleaseDeleter<CPDF_Dictionary>> m_pDict; | |
| 55 bool m_bMemoryBased = true; | |
| 56 uint32_t m_dwSize = 0; | |
| 57 std::unique_ptr<uint8_t, FxFreeDeleter> m_pDataBuf; | |
| 58 IFX_FileRead* m_pFile = nullptr; | |
| 59 }; | |
| 60 | |
| 61 #endif // CORE_FPDFAPI_FPDF_PARSER_INCLUDE_CPDF_STREAM_H_ | |
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