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// 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
#ifndef CORE_FPDFAPI_FPDF_PARSER_INCLUDE_CPDF_STREAM_H_
#define CORE_FPDFAPI_FPDF_PARSER_INCLUDE_CPDF_STREAM_H_
#include <set>
#include "core/fpdfapi/fpdf_parser/include/cpdf_dictionary.h"
#include "core/fpdfapi/fpdf_parser/include/cpdf_object.h"
#include "core/fxcrt/include/fx_stream.h"
class CPDF_Stream : public CPDF_Object {
public:
CPDF_Stream(uint8_t* pData, uint32_t size, CPDF_Dictionary* pDict);
// CPDF_Object.
Type GetType() const override;
CPDF_Object* Clone() const override;
CPDF_Dictionary* GetDict() const override;
CFX_WideString GetUnicodeText() const override;
bool IsStream() const override;
CPDF_Stream* AsStream() override;
const CPDF_Stream* AsStream() const override;
uint32_t GetRawSize() const { return m_dwSize; }
uint8_t* GetRawData() const { return m_pDataBuf; }
void SetData(const uint8_t* pData,
uint32_t size,
FX_BOOL bCompressed,
FX_BOOL bKeepBuf);
void InitStream(const uint8_t* pData, uint32_t size, CPDF_Dictionary* pDict);
void InitStreamFromFile(IFX_FileRead* pFile, CPDF_Dictionary* pDict);
FX_BOOL ReadRawData(FX_FILESIZE start_pos,
uint8_t* pBuf,
uint32_t buf_size) const;
bool IsMemoryBased() const { return m_GenNum == kMemoryBasedGenNum; }
protected:
static const uint32_t kMemoryBasedGenNum = (uint32_t)-1;
~CPDF_Stream() override;
CPDF_Object* CloneNonCyclic(
bool bDirect,
std::set<const CPDF_Object*>* pVisited) const override;
void InitStreamInternal(CPDF_Dictionary* pDict);
CPDF_Dictionary* m_pDict;
uint32_t m_dwSize;
uint32_t m_GenNum;
union {
uint8_t* m_pDataBuf;
IFX_FileRead* m_pFile;
};
};
#endif // CORE_FPDFAPI_FPDF_PARSER_INCLUDE_CPDF_STREAM_H_
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