diff options
Diffstat (limited to 'xfa/src/fgas/src/crt/fx_stream.h')
| -rw-r--r-- | xfa/src/fgas/src/crt/fx_stream.h | 405 |
1 files changed, 405 insertions, 0 deletions
diff --git a/xfa/src/fgas/src/crt/fx_stream.h b/xfa/src/fgas/src/crt/fx_stream.h new file mode 100644 index 0000000000..630a0fb77f --- /dev/null +++ b/xfa/src/fgas/src/crt/fx_stream.h @@ -0,0 +1,405 @@ +// 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 _FX_STREAM_IMP
+#define _FX_STREAM_IMP
+class CFX_StreamImp;
+class CFX_FileStreamImp;
+class CFX_BufferStreamImp;
+class CFX_FileReadStreamImp;
+class CFX_BufferReadStreamImp;
+class CFX_FileWriteStreamImp;
+class CFX_Stream;
+class CFX_TextStream;
+class CFX_FileRead;
+class CFX_FileWrite;
+class CFX_BufferAccImp;
+class CFX_StreamImp : public CFX_ThreadLock, public CFX_Object
+{
+public:
+ virtual void Release()
+ {
+ delete this;
+ }
+ virtual FX_DWORD GetAccessModes() const
+ {
+ return m_dwAccess;
+ }
+ virtual FX_INT32 GetLength() const = 0;
+ virtual FX_INT32 Seek(FX_STREAMSEEK eSeek, FX_INT32 iOffset) = 0;
+ virtual FX_INT32 GetPosition() = 0;
+ virtual FX_BOOL IsEOF() const = 0;
+ virtual FX_INT32 ReadData(FX_LPBYTE pBuffer, FX_INT32 iBufferSize) = 0;
+ virtual FX_INT32 ReadString(FX_LPWSTR pStr, FX_INT32 iMaxLength, FX_BOOL &bEOS) = 0;
+ virtual FX_INT32 WriteData(FX_LPCBYTE pBuffer, FX_INT32 iBufferSize) = 0;
+ virtual FX_INT32 WriteString(FX_LPCWSTR pStr, FX_INT32 iLength) = 0;
+ virtual void Flush() = 0;
+ virtual FX_BOOL SetLength(FX_INT32 iLength) = 0;
+protected:
+ CFX_StreamImp();
+ virtual ~CFX_StreamImp() {}
+ FX_DWORD m_dwAccess;
+};
+class CFX_FileStreamImp : public CFX_StreamImp
+{
+public:
+ CFX_FileStreamImp();
+ virtual ~CFX_FileStreamImp();
+ FX_BOOL LoadFile(FX_LPCWSTR pszSrcFileName, FX_DWORD dwAccess);
+ virtual FX_INT32 GetLength() const;
+ virtual FX_INT32 Seek(FX_STREAMSEEK eSeek, FX_INT32 iOffset);
+ virtual FX_INT32 GetPosition();
+ virtual FX_BOOL IsEOF() const;
+ virtual FX_INT32 ReadData(FX_LPBYTE pBuffer, FX_INT32 iBufferSize);
+ virtual FX_INT32 ReadString(FX_LPWSTR pStr, FX_INT32 iMaxLength, FX_BOOL &bEOS);
+ virtual FX_INT32 WriteData(FX_LPCBYTE pBuffer, FX_INT32 iBufferSize);
+ virtual FX_INT32 WriteString(FX_LPCWSTR pStr, FX_INT32 iLength);
+ virtual void Flush();
+ virtual FX_BOOL SetLength(FX_INT32 iLength);
+protected:
+ FXSYS_FILE *m_hFile;
+ FX_INT32 m_iLength;
+};
+class CFX_BufferStreamImp : public CFX_StreamImp
+{
+public:
+ CFX_BufferStreamImp();
+ virtual ~CFX_BufferStreamImp() {}
+ FX_BOOL LoadBuffer(FX_LPBYTE pData, FX_INT32 iTotalSize, FX_DWORD dwAccess);
+ virtual FX_INT32 GetLength() const;
+ virtual FX_INT32 Seek(FX_STREAMSEEK eSeek, FX_INT32 iOffset);
+ virtual FX_INT32 GetPosition();
+ virtual FX_BOOL IsEOF() const;
+ virtual FX_INT32 ReadData(FX_LPBYTE pBuffer, FX_INT32 iBufferSize);
+ virtual FX_INT32 ReadString(FX_LPWSTR pStr, FX_INT32 iMaxLength, FX_BOOL &bEOS);
+ virtual FX_INT32 WriteData(FX_LPCBYTE pBuffer, FX_INT32 iBufferSize);
+ virtual FX_INT32 WriteString(FX_LPCWSTR pStr, FX_INT32 iLength);
+ virtual void Flush() {}
+ virtual FX_BOOL SetLength(FX_INT32 iLength)
+ {
+ return FALSE;
+ }
+protected:
+ FX_LPBYTE m_pData;
+ FX_INT32 m_iTotalSize;
+ FX_INT32 m_iPosition;
+ FX_INT32 m_iLength;
+};
+class CFX_FileReadStreamImp : public CFX_StreamImp
+{
+public:
+ CFX_FileReadStreamImp();
+ virtual ~CFX_FileReadStreamImp() {}
+ FX_BOOL LoadFileRead(IFX_FileRead *pFileRead, FX_DWORD dwAccess);
+ virtual FX_INT32 GetLength() const;
+ virtual FX_INT32 Seek(FX_STREAMSEEK eSeek, FX_INT32 iOffset);
+ virtual FX_INT32 GetPosition()
+ {
+ return m_iPosition;
+ }
+ virtual FX_BOOL IsEOF() const;
+
+ virtual FX_INT32 ReadData(FX_LPBYTE pBuffer, FX_INT32 iBufferSize);
+ virtual FX_INT32 ReadString(FX_LPWSTR pStr, FX_INT32 iMaxLength, FX_BOOL &bEOS);
+ virtual FX_INT32 WriteData(FX_LPCBYTE pBuffer, FX_INT32 iBufferSize)
+ {
+ return 0;
+ }
+ virtual FX_INT32 WriteString(FX_LPCWSTR pStr, FX_INT32 iLength)
+ {
+ return 0;
+ }
+ virtual void Flush() {}
+ virtual FX_BOOL SetLength(FX_INT32 iLength)
+ {
+ return FALSE;
+ }
+protected:
+ IFX_FileRead *m_pFileRead;
+ FX_INT32 m_iPosition;
+ FX_INT32 m_iLength;
+};
+class CFX_BufferReadStreamImp : public CFX_StreamImp
+{
+public:
+ CFX_BufferReadStreamImp();
+ ~CFX_BufferReadStreamImp();
+ FX_BOOL LoadBufferRead(IFX_BufferRead *pBufferRead, FX_INT32 iFileSize, FX_DWORD dwAccess, FX_BOOL bReleaseBufferRead);
+
+ virtual FX_INT32 GetLength() const;
+ virtual FX_INT32 Seek(FX_STREAMSEEK eSeek, FX_INT32 iOffset);
+ virtual FX_INT32 GetPosition()
+ {
+ return m_iPosition;
+ }
+ virtual FX_BOOL IsEOF() const;
+
+ virtual FX_INT32 ReadData(FX_LPBYTE pBuffer, FX_INT32 iBufferSize);
+ virtual FX_INT32 ReadString(FX_LPWSTR pStr, FX_INT32 iMaxLength, FX_BOOL &bEOS);
+ virtual FX_INT32 WriteData(FX_LPCBYTE pBuffer, FX_INT32 iBufferSize)
+ {
+ return 0;
+ }
+ virtual FX_INT32 WriteString(FX_LPCWSTR pStr, FX_INT32 iLength)
+ {
+ return 0;
+ }
+ virtual void Flush() {}
+ virtual FX_BOOL SetLength(FX_INT32 iLength)
+ {
+ return FALSE;
+ }
+private:
+ IFX_BufferRead *m_pBufferRead;
+ FX_BOOL m_bReleaseBufferRead;
+ FX_INT32 m_iPosition;
+ FX_INT32 m_iBufferSize;
+};
+class CFX_FileWriteStreamImp : public CFX_StreamImp
+{
+public:
+ CFX_FileWriteStreamImp();
+ virtual ~CFX_FileWriteStreamImp() {}
+ FX_BOOL LoadFileWrite(IFX_FileWrite *pFileWrite, FX_DWORD dwAccess);
+ virtual FX_INT32 GetLength() const;
+ virtual FX_INT32 Seek(FX_STREAMSEEK eSeek, FX_INT32 iOffset);
+ virtual FX_INT32 GetPosition()
+ {
+ return m_iPosition;
+ }
+ virtual FX_BOOL IsEOF() const;
+ virtual FX_INT32 ReadData(FX_LPBYTE pBuffer, FX_INT32 iBufferSize)
+ {
+ return 0;
+ }
+ virtual FX_INT32 ReadString(FX_LPWSTR pStr, FX_INT32 iMaxLength, FX_BOOL &bEOS)
+ {
+ return 0;
+ }
+ virtual FX_INT32 WriteData(FX_LPCBYTE pBuffer, FX_INT32 iBufferSize);
+ virtual FX_INT32 WriteString(FX_LPCWSTR pStr, FX_INT32 iLength);
+ virtual void Flush();
+ virtual FX_BOOL SetLength(FX_INT32 iLength)
+ {
+ return FALSE;
+ }
+protected:
+ IFX_FileWrite *m_pFileWrite;
+ FX_INT32 m_iPosition;
+};
+enum FX_STREAMTYPE {
+ FX_SREAMTYPE_Unknown = 0,
+ FX_STREAMTYPE_File ,
+ FX_STREAMTYPE_Buffer ,
+ FX_STREAMTYPE_Stream ,
+ FX_STREAMTYPE_BufferRead ,
+};
+class CFX_Stream : public IFX_Stream, public CFX_ThreadLock, public CFX_Object
+{
+public:
+ CFX_Stream();
+ ~CFX_Stream();
+ FX_BOOL LoadFile(FX_LPCWSTR pszSrcFileName, FX_DWORD dwAccess);
+ FX_BOOL LoadBuffer(FX_LPBYTE pData, FX_INT32 iTotalSize, FX_DWORD dwAccess);
+ FX_BOOL LoadFileRead(IFX_FileRead *pFileRead, FX_DWORD dwAccess);
+ FX_BOOL LoadFileWrite(IFX_FileWrite *pFileWrite, FX_DWORD dwAccess);
+ FX_BOOL LoadBufferRead(IFX_BufferRead *pBufferRead, FX_INT32 iFileSize, FX_DWORD dwAccess, FX_BOOL bReleaseBufferRead);
+ virtual void Release();
+ virtual IFX_Stream* Retain();
+ virtual FX_DWORD GetAccessModes() const
+ {
+ return m_dwAccess;
+ }
+ virtual FX_INT32 GetLength() const;
+ virtual FX_INT32 Seek(FX_STREAMSEEK eSeek, FX_INT32 iOffset);
+ virtual FX_INT32 GetPosition();
+ virtual FX_BOOL IsEOF() const;
+ virtual FX_INT32 ReadData(FX_LPBYTE pBuffer, FX_INT32 iBufferSize);
+ virtual FX_INT32 ReadString(FX_LPWSTR pStr, FX_INT32 iMaxLength, FX_BOOL &bEOS, FX_INT32 const *pByteSize = NULL);
+ virtual FX_INT32 WriteData(FX_LPCBYTE pBuffer, FX_INT32 iBufferSize);
+ virtual FX_INT32 WriteString(FX_LPCWSTR pStr, FX_INT32 iLength);
+ virtual void Flush();
+ virtual FX_BOOL SetLength(FX_INT32 iLength);
+ virtual FX_INT32 GetBOM(FX_BYTE bom[4]) const;
+ virtual FX_WORD GetCodePage() const;
+ virtual FX_WORD SetCodePage(FX_WORD wCodePage);
+ virtual void Lock()
+ {
+ CFX_ThreadLock::Lock();
+ }
+ virtual void Unlock()
+ {
+ CFX_ThreadLock::Unlock();
+ }
+ virtual IFX_Stream* CreateSharedStream(FX_DWORD dwAccess, FX_INT32 iOffset, FX_INT32 iLength);
+protected:
+ FX_STREAMTYPE m_eStreamType;
+ CFX_StreamImp *m_pStreamImp;
+ FX_DWORD m_dwAccess;
+ FX_INT32 m_iTotalSize;
+ FX_INT32 m_iPosition;
+ FX_INT32 m_iStart;
+ FX_INT32 m_iLength;
+ FX_INT32 m_iRefCount;
+};
+class CFX_TextStream : public IFX_Stream, public CFX_ThreadLock, public CFX_Object
+{
+public:
+ CFX_TextStream(IFX_Stream *pStream, FX_BOOL bDelStream);
+ ~CFX_TextStream();
+ virtual void Release();
+ virtual IFX_Stream* Retain();
+
+ virtual FX_DWORD GetAccessModes() const;
+ virtual FX_INT32 GetLength() const;
+ virtual FX_INT32 Seek(FX_STREAMSEEK eSeek, FX_INT32 iOffset);
+ virtual FX_INT32 GetPosition();
+ virtual FX_BOOL IsEOF() const;
+
+ virtual FX_INT32 ReadData(FX_LPBYTE pBuffer, FX_INT32 iBufferSize);
+ virtual FX_INT32 ReadString(FX_LPWSTR pStr, FX_INT32 iMaxLength, FX_BOOL &bEOS, FX_INT32 const *pByteSize = NULL);
+ virtual FX_INT32 WriteData(FX_LPCBYTE pBuffer, FX_INT32 iBufferSize);
+ virtual FX_INT32 WriteString(FX_LPCWSTR pStr, FX_INT32 iLength);
+ virtual void Flush();
+ virtual FX_BOOL SetLength(FX_INT32 iLength);
+
+ virtual FX_INT32 GetBOM(FX_BYTE bom[4]) const;
+ virtual FX_WORD GetCodePage() const;
+ virtual FX_WORD SetCodePage(FX_WORD wCodePage);
+
+ virtual void Lock()
+ {
+ CFX_ThreadLock::Lock();
+ }
+ virtual void Unlock()
+ {
+ CFX_ThreadLock::Unlock();
+ }
+
+ virtual IFX_Stream* CreateSharedStream(FX_DWORD dwAccess, FX_INT32 iOffset, FX_INT32 iLength);
+protected:
+ FX_WORD m_wCodePage;
+ FX_WORD m_wBOMLength;
+ FX_DWORD m_dwBOM;
+ FX_LPBYTE m_pBuf;
+ FX_INT32 m_iBufSize;
+ FX_BOOL m_bDelStream;
+ IFX_Stream *m_pStreamImp;
+ FX_INT32 m_iRefCount;
+ void InitStream();
+};
+#ifdef FX_FILESIZE
+class CFGAS_FileRead : public IFX_FileRead, public CFX_Object
+{
+public:
+ CFGAS_FileRead(IFX_Stream *pStream, FX_BOOL bReleaseStream);
+ virtual ~CFGAS_FileRead();
+ virtual void Release()
+ {
+ delete this;
+ }
+ virtual FX_FILESIZE GetSize();
+ virtual FX_BOOL ReadBlock(void* buffer, FX_FILESIZE offset, size_t size);
+protected:
+ FX_BOOL m_bReleaseStream;
+ IFX_Stream *m_pStream;
+};
+#else
+class CFGAS_FileRead : public IFX_FileRead, public CFX_Object
+{
+public:
+ CFGAS_FileRead(IFX_Stream *pStream, FX_BOOL bReleaseStream);
+ virtual ~CFGAS_FileRead();
+
+ virtual void Release()
+ {
+ delete this;
+ }
+ virtual FX_DWORD GetSize();
+ virtual FX_BOOL ReadBlock(void* buffer, FX_DWORD offset, FX_DWORD size);
+
+protected:
+ FX_BOOL m_bReleaseStream;
+ IFX_Stream *m_pStream;
+};
+#endif
+#ifdef FX_FILESIZE
+class CFX_BufferAccImp : public IFX_FileRead, public CFX_Object
+{
+public:
+ CFX_BufferAccImp(IFX_BufferRead *pBufferRead, FX_FILESIZE iFileSize, FX_BOOL bReleaseStream);
+ virtual ~CFX_BufferAccImp();
+ virtual void Release()
+ {
+ delete this;
+ }
+ virtual FX_FILESIZE GetSize();
+ virtual FX_BOOL ReadBlock(void* buffer, FX_FILESIZE offset, size_t size);
+protected:
+ IFX_BufferRead *m_pBufferRead;
+ FX_BOOL m_bReleaseStream;
+ FX_FILESIZE m_iBufSize;
+};
+#else
+class CFX_BufferAccImp : public IFX_FileRead, public CFX_Object
+{
+public:
+ CFX_BufferAccImp(IFX_BufferRead *pBufferRead, FX_INT32 iFileSize, FX_BOOL bReleaseStream);
+ virtual ~CFX_BufferAccImp();
+
+ virtual void Release()
+ {
+ delete this;
+ }
+ virtual FX_DWORD GetSize();
+ virtual FX_BOOL ReadBlock(void* buffer, FX_DWORD offset, FX_DWORD size);
+
+protected:
+ IFX_BufferRead *m_pBufferRead;
+ FX_BOOL m_bReleaseStream;
+ FX_INT32 m_iBufSize;
+};
+#endif
+#ifdef FX_FILESIZE
+class CFGAS_FileWrite : public IFX_FileWrite, public CFX_Object
+{
+public:
+ CFGAS_FileWrite(IFX_Stream *pStream, FX_BOOL bReleaseStream);
+ virtual ~CFGAS_FileWrite();
+ virtual void Release()
+ {
+ delete this;
+ }
+ virtual FX_FILESIZE GetSize();
+ virtual FX_BOOL Flush();
+ virtual FX_BOOL WriteBlock(const void* pData, size_t size);
+ virtual FX_BOOL WriteBlock(const void* pData, FX_FILESIZE offset, size_t size);
+protected:
+ IFX_Stream *m_pStream;
+ FX_BOOL m_bReleaseStream;
+};
+#else
+class CFGAS_FileWrite : public IFX_FileWrite, public CFX_Object
+{
+public:
+ CFGAS_FileWrite(IFX_Stream *pStream, FX_BOOL bReleaseStream);
+ virtual ~CFGAS_FileWrite();
+
+ virtual void Release()
+ {
+ delete this;
+ }
+ virtual FX_DWORD GetSize();
+ virtual FX_DWORD Flush();
+ virtual FX_BOOL WriteBlock(const void* pData, FX_DWORD size);
+ virtual FX_BOOL WriteBlock(const void* pData, FX_DWORD offset, FX_DWORD size);
+
+protected:
+ IFX_Stream *m_pStream;
+ FX_BOOL m_bReleaseStream;
+};
+#endif
+#endif
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