CIccNullIO Class Reference

Type: Class. More...

#include <IccIO.h>

Inheritance diagram for CIccNullIO:

Collaboration diagram for CIccNullIO:

Public Member Functions
	CIccNullIO ()
virtual void	Close ()
virtual icInt32Number	GetLength ()
void	Open ()
virtual icInt32Number	Read8 (void *pBuf, icInt32Number nNum=1)
virtual icInt32Number	Seek (icInt32Number nOffset, icSeekVal pos)
virtual icInt32Number	Tell ()
virtual icInt32Number	Write8 (void *pBuf, icInt32Number nNum=1)
virtual	~CIccNullIO ()
Public Member Functions inherited from CIccIO
bool	Align32 ()
	Write operation to make sure that filelength is evenly divisible by 4.
icInt32Number	Read16 (void *pBuf16, icInt32Number nNum=1)
icInt32Number	Read32 (void *pBuf32, icInt32Number nNum=1)
icInt32Number	Read64 (void *pBuf64, icInt32Number nNum=1)
icInt32Number	ReadFloat16Float (void *pBufFloat, icInt32Number nNum=1)
icInt32Number	ReadFloat32Float (void *pBufFloat, icInt32Number nNum=1)
icInt32Number	ReadLine (void *pBuf8, icInt32Number nNum=256)
icInt32Number	ReadUInt16Float (void *pBufFloat, icInt32Number nNum=1)
icInt32Number	ReadUInt8Float (void *pBufFloat, icInt32Number nNum=1)
bool	Sync32 (icUInt32Number nOffset=0)
	Operation to make sure read position is evenly divisible by 4.
icInt32Number	Write16 (void *pBuf16, icInt32Number nNum=1)
icInt32Number	Write32 (void *pBuf32, icInt32Number nNum=1)
icInt32Number	Write64 (void *pBuf64, icInt32Number nNum=1)
icInt32Number	WriteFloat16Float (void *pBuf16, icInt32Number nNum=1)
icInt32Number	WriteFloat32Float (void *pBufFloat, icInt32Number nNum=1)
icInt32Number	WriteUInt16Float (void *pBuf16, icInt32Number nNum=1)
icInt32Number	WriteUInt8Float (void *pBuf16, icInt32Number nNum=1)
virtual	~CIccIO ()

Protected Attributes
icUInt32Number	m_nPos
icUInt32Number	m_nSize

Detailed Description

Type: Class.

Purpose: Handles simulated File IO

Definition at line 253 of file IccIO.h.

Constructor & Destructor Documentation

CIccNullIO()

CIccNullIO::CIccNullIO

(

)

Definition at line 814 of file IccIO.cpp.

                       : CIccIO()
{
  m_nSize = 0;
  m_nPos = 0;
}

References m_nPos, and m_nSize.

~CIccNullIO()

CIccNullIO::~CIccNullIO ( )

virtual

Definition at line 820 of file IccIO.cpp.

{
  Close();
}

References Close().

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Member Function Documentation

Close()

void CIccNullIO::Close ( )

virtual

Reimplemented from CIccIO.

Definition at line 833 of file IccIO.cpp.

{
}

Referenced by ~CIccNullIO().

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GetLength()

icInt32Number CIccNullIO::GetLength ( )

virtual

Reimplemented from CIccIO.

Definition at line 860 of file IccIO.cpp.

{
  return m_nSize;
}

References m_nSize.

Open()

void CIccNullIO::Open

(

)

Definition at line 826 of file IccIO.cpp.

{
  m_nPos = 0;
  m_nSize = 0;
}

References m_nPos, and m_nSize.

Read8()

icInt32Number CIccNullIO::Read8 ( void * pBuf, icInt32Number nNum = 1 )

virtual

Reimplemented from CIccIO.

Definition at line 838 of file IccIO.cpp.

{
  icInt32Number nLeft = m_nSize - m_nPos;
  icInt32Number nRead = (nNum <= (icInt32Number)nLeft) ? nNum : nLeft;
 
  memset(pBuf, 0, nRead);
  m_nPos += nRead;
 
  return nRead;
}

References m_nPos, and m_nSize.

Seek()

icInt32Number CIccNullIO::Seek ( icInt32Number nOffset, icSeekVal pos )

virtual

Reimplemented from CIccIO.

Definition at line 866 of file IccIO.cpp.

{
  icInt32Number nPos;
  switch(pos) {
  case icSeekSet:
    nPos = nOffset;
    break;
  case icSeekCur:
    nPos = (icInt32Number)m_nPos + nOffset;
    break;
  case icSeekEnd:
    nPos = (icInt32Number)m_nSize + nOffset;
    break;
  default:
    nPos = 0;
    break;
  }
 
  if (nPos < 0)
    return -1;
 
  m_nPos = (icUInt32Number)nPos;
 
  if (m_nPos>m_nSize)
    m_nSize = m_nPos;
 
  return nPos;
}

References icSeekCur, icSeekEnd, icSeekSet, m_nPos, and m_nSize.

Tell()

icInt32Number CIccNullIO::Tell ( )

virtual

Reimplemented from CIccIO.

Definition at line 896 of file IccIO.cpp.

{
  return (icInt32Number)m_nPos;
}

References m_nPos.

Write8()

icInt32Number CIccNullIO::Write8 ( void * pBuf, icInt32Number nNum = 1 )

virtual

Reimplemented from CIccIO.

Definition at line 850 of file IccIO.cpp.

{
  m_nPos += nNum;
  if (m_nPos > m_nSize)
    m_nSize = m_nPos;
  
  return nNum;
}

References m_nPos, and m_nSize.

Member Data Documentation

m_nPos

icUInt32Number CIccNullIO::m_nPos

protected

Definition at line 274 of file IccIO.h.

Referenced by CIccNullIO(), Open(), Read8(), Seek(), Tell(), and Write8().

m_nSize

icUInt32Number CIccNullIO::m_nSize

protected

Definition at line 273 of file IccIO.h.

Referenced by CIccNullIO(), GetLength(), Open(), Read8(), Seek(), and Write8().

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The documentation for this class was generated from the following files:

• IccProfLib/IccIO.h
• IccProfLib/IccIO.cpp