CIccTagParametricCurve Class Reference

#include <IccTagLut.h>

Inheritance diagram for CIccTagParametricCurve:

Collaboration diagram for CIccTagParametricCurve:

Public Member Functions
	CIccTagParametricCurve ()
	CIccTagParametricCurve (const CIccTagParametricCurve &ITPC)
virtual	~CIccTagParametricCurve ()
virtual icFloatNumber	Apply (icFloatNumber v) const
virtual void	Begin ()
virtual void	Describe (std::string &sDescription, int nVerboseness)
virtual void	DetachIO ()
virtual void	DumpLut (std::string &sDescription, const icChar *szName, icColorSpaceSignature csSig, int nIndex, int nVerboseness)
icFloatNumber	Find (icFloatNumber v)
virtual const icChar *	GetClassName () const
virtual IIccExtensionTag *	GetExtension ()
icUInt16Number	GetFunctionType () const
icUInt16Number	GetNumParam () const
icFloatNumber *	GetParams () const
virtual icArraySignature	GetTagArrayType () const
virtual icStructSignature	GetTagStructType () const
virtual icTagTypeSignature	GetType () const
virtual bool	IsArrayType ()
virtual bool	IsIdentity ()
virtual bool	IsMBBType ()
virtual bool	IsNumArrayType () const
virtual bool	IsSupported ()
virtual CIccTag *	NewCopy () const
CIccTagParametricCurve &	operator= (const CIccTagParametricCurve &ParamCurveTag)
icFloatNumber &	operator[] (int index)
icFloatNumber	Param (int index) const
virtual bool	Read (icUInt32Number size, CIccIO *pIO)
virtual bool	Read (icUInt32Number size, CIccIO *pIO, CIccProfile *pProfile)
virtual bool	ReadAll ()
bool	SetFunctionType (icUInt16Number nFunctionType)
virtual icValidateStatus	Validate (std::string sigPath, std::string &sReport, const CIccProfile *pProfile=NULL) const
virtual bool	Write (CIccIO *pIO)

Static Public Member Functions
static CIccTag *	Create (icTagTypeSignature sig)

Data Fields
icUInt32Number	m_nReserved
icUInt16Number	m_nReserved2

Protected Member Functions
icFloatNumber	Find (icFloatNumber v, icFloatNumber p0, icFloatNumber v0, icFloatNumber p1, icFloatNumber v1)

Protected Attributes
icFloatNumber *	m_dParam
icUInt16Number	m_nFunctionType
icUInt16Number	m_nNumParam

Detailed Description

Class: CIccTagParametricCurve

Purpose: The parametric curve type tag

Constructor & Destructor Documentation

CIccTagParametricCurve() [1/2]

CIccTagParametricCurve::CIccTagParametricCurve

(

)

Name: CIccTagParametricCurve::CIccTagParametricCurve

Purpose: Constructor

{
  m_nFunctionType = 0xffff;
  m_nNumParam = 0;
  m_dParam = NULL;
  m_nReserved2 = 0;
}

References m_dParam, m_nFunctionType, m_nNumParam, and m_nReserved2.

CIccTagParametricCurve() [2/2]

CIccTagParametricCurve::CIccTagParametricCurve

(

const CIccTagParametricCurve &

ITPC

)

Name: CIccTagParametricCurve::CIccTagParametricCurve

Purpose: Copy Constructor

Args: ITPC = The CIccTagParametricCurve object to be copied

{
  m_nFunctionType = ITPC.m_nFunctionType;
  m_nNumParam = ITPC.m_nNumParam;
  m_nReserved2 = 0;
 
  m_dParam = new icFloatNumber[m_nNumParam];
  memcpy(m_dParam, ITPC.m_dParam, m_nNumParam*sizeof(icFloatNumber));  
}

References m_dParam, m_nFunctionType, m_nNumParam, and m_nReserved2.

Referenced by NewCopy().

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~CIccTagParametricCurve()

CIccTagParametricCurve::~CIccTagParametricCurve ( )

virtual

Name: CIccTagParametricCurve::~CIccTagParametricCurve

Purpose: Destructor

{
  if (m_dParam)
    delete [] m_dParam;
}

References m_dParam.

Member Function Documentation

Apply()

icFloatNumber CIccTagParametricCurve::Apply ( icFloatNumber  X ) const

virtual

Name: CIccTagParametricCurve::Apply

Purpose: Applies the curve to the value passed.

Args: x = value to be passed through the curve.

Return: The value modified by the curve.

Reimplemented from CIccCurve.

{
  double a, b;
 
  switch(m_nFunctionType) {
    case 0x0000:
      return (icFloatNumber)pow(X, m_dParam[0]);
 
    case 0x0001:
      a=m_dParam[1];
      b=m_dParam[2];
 
      if (X >= -b/a) {
        return (icFloatNumber)pow((double)a*X + b, (double)m_dParam[0]);
      }
      else {
        return 0;
      }
 
    case 0x0002:
      a=m_dParam[1];
      b=m_dParam[2];
 
      if (X >= -b/a) {
        return (icFloatNumber)pow((double)a*X + b, (double)m_dParam[0]) + m_dParam[3];
      }
      else {
        return m_dParam[3];
      }
 
    case 0x0003:
      if (X >= m_dParam[4]) {
        return (icFloatNumber)pow((double)m_dParam[1]*X + m_dParam[2], (double)m_dParam[0]);
      }
      else {
        return m_dParam[3]*X;
      }
 
    case 0x0004:
      if (X >= m_dParam[4]) {
        return (icFloatNumber)pow((double)m_dParam[1]*X + m_dParam[2], (double)m_dParam[0]) + m_dParam[5];
      }
      else {
        return m_dParam[3]*X + m_dParam[6];
      }
 
    default:
      return X;
  }
}

References m_dParam, and m_nFunctionType.

Referenced by Validate().

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Begin()

virtual void CIccCurve::Begin ( )

inlinevirtualinherited

Reimplemented in CIccTagCurve, and CIccTagSegmentedCurve.

{}

Create()

CIccTag * CIccTag::Create ( icTagTypeSignature  sig )

staticinherited

Name: CIccTag::Create

Purpose: This is a static tag creator based upon tag signature type

Args: sig = tag type signature

Return: Pointer to Allocated tag

{
  return CIccTagCreator::CreateTag(sig);
}

References CIccTagCreator::CreateTag().

Referenced by CIccDefaultEncProfileConverter::ConvertFromParams(), CIccTagStruct::LoadElem(), CIccProfileXml::ParseTag(), CIccTagXmlStruct::ParseTag(), CIccMpeXmlTintArray::ParseXml(), CIccTagXmlArray::ParseXml(), CIccMpeTintArray::Read(), CIccTagLutAtoB::Read(), CIccTagLut8::Read(), CIccTagLut16::Read(), CIccTagLut8::SetColorSpaces(), CIccTagLut16::SetColorSpaces(), and CIccProfileDescText::SetType().

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Describe()

void CIccTagParametricCurve::Describe ( std::string &  sDescription, int  nVerboseness  )

virtual

Name: CIccTagParametricCurve::Describe

Purpose: Dump data associated with the tag to a string

Args: sDescription - string to concatenate tag dump to

Reimplemented from CIccTag.

{
  icChar buf[128];
 
  sprintf(buf, "FunctionType: %04Xh\n", m_nFunctionType);
  sDescription += buf;
 
  switch(m_nFunctionType) {
case 0x0000:
  sprintf(buf, "Y = X ^ %.4lf\n", m_dParam[0]);
  sDescription += buf;
  return;
 
case 0x0001:
  sprintf(buf, "Y = 0 when (X < %.4lf / %.4lf)\n",
    -m_dParam[2], m_dParam[1]);
  sDescription += buf;
 
  sprintf(buf, "Y = (%.4lf * X + %.4lf) ^ %.4lf   when (X >= %.4lf / %.4lf)\n",
    m_dParam[1], m_dParam[2], m_dParam[0],
    m_dParam[2], m_dParam[1]);
  sDescription += buf;
  return;
 
case 0x0002:
  sprintf(buf, "Y = %.4lf   when (X < %.4lf / %.4lf)\n", m_dParam[3],
    -m_dParam[2], m_dParam[1]);
  sDescription += buf;
 
  sprintf(buf, "Y = (%.4lf * X + %.4lf) ^ %.4lf + %.4lf   when (X >= %.4lf / %.4lf)\n",
    m_dParam[1], m_dParam[2], m_dParam[0],
    m_dParam[3],
    -m_dParam[2], m_dParam[1]);
  sDescription += buf;
  return;
 
case 0x0003:
  sprintf(buf, "Y = %lf * X   when (X < %.4lf)\n",
    m_dParam[3], m_dParam[4]);
  sDescription += buf;
 
  sprintf(buf, "Y = (%.4lf * X + %.4lf) ^ %.4lf   when (X >= %.4lf)\n",
    m_dParam[1], m_dParam[2], m_dParam[0],
    m_dParam[4]);
  sDescription += buf;
  return;
 
case 0x0004:
  sprintf(buf, "Y = %lf * X + %.4lf  when (X < %.4lf)\n",
    m_dParam[3], m_dParam[6], m_dParam[4]);
  sDescription += buf;
 
  sprintf(buf, "Y = (%.4lf * X + %.4lf) ^ %.4lf + %.4lf  when (X >= %.4lf)\n",
    m_dParam[1], m_dParam[2], m_dParam[0],
    m_dParam[5], m_dParam[4]);
  sDescription += buf;
  return;
 
default:
  int i;
  sprintf(buf, "Unknown Function with %d parameters:\n", m_nNumParam);
  sDescription += buf;
 
  for (i=0; i<m_nNumParam; i++) {
    sprintf(buf, "Param[%d] = %.4lf\n", i, m_dParam[i]);
    sDescription += buf;
  }
  }
}

References m_dParam, m_nFunctionType, and m_nNumParam.

Referenced by DumpLut().

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DetachIO()

virtual void CIccTag::DetachIO ( )

inlinevirtualinherited

Function: ReadAll() - Read All sub data for tag from file. Called by CIccProfile::ReadAll() to read all sub data for tag

Returns true if ReadAll is successful.

{}

DumpLut()

void CIccTagParametricCurve::DumpLut ( std::string &  sDescription, const icChar *  szName, icColorSpaceSignature  csSig, int  nIndex, int  nVerboseness  )

virtual

Name: CIccTagParametricCurve::DumpLut

Purpose: Dump data associated with the tag to a string. Basically has the same function as Describe()

Args: sDescription = string to concatenate tag dump to, szName = name of the curve to be printed, csSig = color space signature of the curve data, nIndex = the channel number of color space

Reimplemented from CIccCurve.

{
  icChar buf[128];
 
  sprintf(buf, "BEGIN_CURVE %s\n", szName);
  sDescription += buf;
  Describe(sDescription, nVerboseness);
}

References Describe().

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Find() [1/2]

icFloatNumber CIccCurve::Find ( icFloatNumber  v )

inlineinherited

{ return Find(v, 0, Apply(0), 1.0, Apply(1.0)); }

References CIccCurve::Apply(), and CIccCurve::Find().

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Find() [2/2]

icFloatNumber CIccCurve::Find ( icFloatNumber  v, icFloatNumber  p0, icFloatNumber  v0, icFloatNumber  p1, icFloatNumber  v1  )

protectedinherited

Name: CIccCurve::Find

Purpose: Read in the tag contents into a data block

Args: v = index to be searched, v0 = index less than/equal to v, p0 = the value at index v0, v1 = index greater than/equal to v, p1 = value at index v1

Return: The value at the requested index

{
  if (v<=v0)
    return p0;
  if (v>=v1)
    return p1;
 
  if (p1-p0 <= 0.00001) {
    icFloatNumber d0 = (icFloatNumber)fabs(v-v0);
    icFloatNumber d1 = (icFloatNumber)fabs(v1-v);
 
    if (d0<d1)
      return p0;
    return p1;
  }
 
  icFloatNumber np = (icFloatNumber)((p0 + p1)/2.0);
  icFloatNumber nv = Apply(np);
 
  if (v<=nv) {
    return Find(v, p0, v0, np, nv);
  }
  return Find(v, np, nv, p1, v1);
}

References CIccCurve::Apply(), and CIccCurve::Find().

Referenced by CIccCurve::Find(), and CIccCurve::Find().

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GetClassName()

virtual const icChar * CIccTagParametricCurve::GetClassName ( ) const

inlinevirtual

Reimplemented from CIccTag.

Reimplemented in CIccTagXmlParametricCurve.

{ return "CIccTagParametricCurve"; }

GetExtension()

virtual IIccExtensionTag * CIccTag::GetExtension ( )

inlinevirtualinherited

Reimplemented in CIccTagXmlUnknown, CIccTagXmlText, CIccTagXmlUtf8Text, CIccTagXmlZipUtf8Text, CIccTagXmlZipXml, CIccTagXmlUtf16Text, CIccTagXmlTextDescription, CIccTagXmlSignature, CIccTagXmlNamedColor2, CIccTagXmlXYZ, CIccTagXmlChromaticity, CIccTagXmlCicp, CIccTagXmlSparseMatrixArray, CIccTagXmlFixedNum< T, Tsig >, CIccTagXmlNum< T, A, Tsig >, CIccTagXmlFloatNum< T, A, Tsig >, CIccTagXmlMeasurement, CIccTagXmlMultiLocalizedUnicode, CIccTagXmlTagData, CIccTagXmlDateTime, CIccTagXmlColorantOrder, CIccTagXmlColorantTable, CIccTagXmlViewingConditions, CIccTagXmlSpectralDataInfo, CIccTagXmlSpectralViewingConditions, CIccTagXmlProfileSeqDesc, CIccTagXmlResponseCurveSet16, CIccTagXmlCurve, CIccTagXmlParametricCurve, CIccTagXmlSegmentedCurve, CIccTagXmlLutAtoB, CIccTagXmlLutBtoA, CIccTagXmlLut8, CIccTagXmlLut16, CIccTagXmlMultiProcessElement, CIccTagXmlProfileSequenceId, CIccTagXmlDict, CIccTagXmlStruct, CIccTagXmlArray, CIccTagXmlGamutBoundaryDesc, CIccTagXmlEmbeddedHeightImage, CIccTagXmlEmbeddedNormalImage, and CIccTagXmlEmbeddedProfile.

{return NULL;}

Referenced by icCurvesFromXml(), icCurvesToXml(), icProfDescToXml(), icXmlParseProfDesc(), CIccProfileXml::ParseTag(), CIccTagXmlStruct::ParseTag(), CIccMpeXmlTintArray::ParseXml(), CIccTagXmlArray::ParseXml(), CIccMpeXmlTintArray::ToXml(), CIccTagXmlStruct::ToXml(), CIccTagXmlArray::ToXml(), and CIccProfileXml::ToXmlWithBlanks().

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GetFunctionType()

icUInt16Number CIccTagParametricCurve::GetFunctionType ( ) const

inline

{return m_nFunctionType; }

References m_nFunctionType.

GetNumParam()

icUInt16Number CIccTagParametricCurve::GetNumParam ( ) const

inline

{ return m_nNumParam; }

References m_nNumParam.

Referenced by CIccTagXmlParametricCurve::ParseXml().

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GetParams()

icFloatNumber * CIccTagParametricCurve::GetParams ( ) const

inline

{ return m_dParam; }

References m_dParam.

Referenced by CIccTagXmlParametricCurve::ParseXml().

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GetTagArrayType()

virtual icArraySignature CIccTag::GetTagArrayType ( ) const

inlinevirtualinherited

Reimplemented in CIccTagArray.

{ return icSigUndefinedArray; }

References icSigUndefinedArray.

Referenced by icGetTagArrayHandlerOfType(), and CIccProfileXml::ParseTag().

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GetTagStructType()

virtual icStructSignature CIccTag::GetTagStructType ( ) const

inlinevirtualinherited

Reimplemented in CIccTagStruct.

{ return icSigUndefinedStruct; }

References icSigUndefinedStruct.

Referenced by icGetTagStructHandlerOfType(), CIccArrayColorantInfo::Validate(), and CIccArrayNamedColor::Validate().

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GetType()

virtual icTagTypeSignature CIccTagParametricCurve::GetType ( ) const

inlinevirtual

Function: GetType()

Purpose: Get Tag Type. Each derived tag will implement it's own GetType() function.

Reimplemented from CIccTag.

{ return icSigParametricCurveType; }

References icSigParametricCurveType.

Referenced by Write().

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IsArrayType()

virtual bool CIccTag::IsArrayType ( )

inlinevirtualinherited

Reimplemented in CIccTagXYZ, CIccTagChromaticity, CIccTagSparseMatrixArray, CIccTagFixedNum< T, Tsig >, CIccTagNum< T, Tsig >, CIccTagFloatNum< T, Tsig >, and CIccTagData.

{ return false; }

Referenced by MyTagDialog::MyTagDialog(), and DumpTag().

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IsIdentity()

bool CIccTagParametricCurve::IsIdentity ( )

virtual

Name: CIccTagParametricCurve::IsIdentity

Purpose: Checks if this is an identity curve.

Return: true if the curve is an identity

Reimplemented from CIccCurve.

{
  switch(m_nFunctionType) {
    case 0x0000:
      return IsUnity(m_dParam[0]);
 
    case 0x0001:
    case 0x0002:
    case 0x0003:
    case 0x0004:
      return false;
 
    default:
      return true;
  }
}

References IsUnity(), m_dParam, and m_nFunctionType.

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IsMBBType()

virtual bool CIccTag::IsMBBType ( )

inlinevirtualinherited

Reimplemented in CIccMBB.

{ return false; } //If true then CIccTag can be cast as an CIccMBB 

Referenced by CIccProfileXml::ParseTag().

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IsNumArrayType()

virtual bool CIccTag::IsNumArrayType ( ) const

inlinevirtualinherited

Reimplemented in CIccTagSparseMatrixArray, CIccTagFixedNum< T, Tsig >, CIccTagNum< T, Tsig >, and CIccTagFloatNum< T, Tsig >.

{ return false;} //If true then CIccTag can be cast as a CIccTagNumArray

Referenced by CIccArrayNamedColor::FindDeviceColor(), CIccArrayNamedColor::FindPcsColor(), CIccArrayNamedColor::FindSpectralColor(), CIccTagStruct::GetElemNumberValue(), CIccStructNamedColor::GetNumArray(), CIccMpeXmlTintArray::ParseXml(), and CIccMpeTintArray::Read().

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IsSupported()

virtual bool CIccTag::IsSupported ( )

inlinevirtualinherited

Function: IsSupported(size, pIO) - Check if tag fully supported for apply purposes. By Default inherited classes are supported. Unknown tag types are not supported.

Returns true if tag type is supported.

Reimplemented in CIccTagUnknown, CIccTagEmbeddedProfile, and CIccTagMultiProcessElement.

{ return true; }

NewCopy()

virtual CIccTag * CIccTagParametricCurve::NewCopy ( ) const

inlinevirtual

Function: NewCopy(sDescription) Each derived tag will implement it's own NewCopy() function.

Parameter(s): none

Returns a new CIccTag object that is a copy of this object.

Reimplemented from CIccCurve.

{ return new CIccTagParametricCurve(*this);}

References CIccTagParametricCurve().

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operator=()

CIccTagParametricCurve & CIccTagParametricCurve::operator=

(

const CIccTagParametricCurve &

ParamCurveTag

)

Name: CIccTagParametricCurve::operator=

Purpose: Copy Operator

Args: ParamCurveTag = The CIccTagParametricCurve object to be copied

{
  if (&ParamCurveTag == this)
    return *this;
 
  m_nFunctionType = ParamCurveTag.m_nFunctionType;
  m_nNumParam = ParamCurveTag.m_nNumParam;
 
  if (m_dParam)
    delete [] m_dParam;
    m_dParam = new icFloatNumber[m_nNumParam];
    memcpy(m_dParam, ParamCurveTag.m_dParam, m_nNumParam*sizeof(icFloatNumber));
 
  return *this;
}

References m_dParam, m_nFunctionType, and m_nNumParam.

operator[]()

icFloatNumber & CIccTagParametricCurve::operator[] ( int  index )

inline

{ return m_dParam[index]; }

References m_dParam.

Param()

icFloatNumber CIccTagParametricCurve::Param ( int  index ) const

inline

{ return m_dParam[index]; }

References m_dParam.

Read() [1/2]

bool CIccTagParametricCurve::Read ( icUInt32Number  size, CIccIO *  pIO  )

virtual

Name: CIccTagParametricCurve::Read

Purpose: Read in the tag contents into a data block

Args: size - # of bytes in tag, pIO - IO object to read tag from

Return: true = successful, false = failure

Reimplemented from CIccTag.

{
  icTagTypeSignature sig;
  icUInt16Number nFunctionType;
 
  icUInt32Number nHdrSize = sizeof(icTagTypeSignature) + 
    sizeof(icUInt32Number) + 
    2*sizeof(icUInt16Number);
 
  if ( nHdrSize > size)
    return false;
 
  if (!pIO) {
    return false;
  }
 
  if (!pIO->Read32(&sig) ||
    !pIO->Read32(&m_nReserved) ||
    !pIO->Read16(&nFunctionType) ||
    !pIO->Read16(&m_nReserved2))
    return false;
 
  SetFunctionType(nFunctionType);
 
  if (!m_nNumParam) {
    m_nNumParam = (icUInt16Number)((size-nHdrSize) / sizeof(icS15Fixed16Number));
    m_dParam = new icFloatNumber[m_nNumParam];
  }
 
  if (m_nNumParam) {
    int i;
    if (nHdrSize + m_nNumParam*sizeof(icS15Fixed16Number) > size)
      return false;
 
    for (i=0; i<m_nNumParam; i++) {
      icS15Fixed16Number num;
      if (!pIO->Read32(&num, 1))
        return false;
      m_dParam[i]=icFtoD(num);
    }
  }
 
  return true;
}

References icFtoD(), m_dParam, m_nNumParam, CIccTag::m_nReserved, m_nReserved2, CIccIO::Read16(), CIccIO::Read32(), and SetFunctionType().

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Read() [2/2]

virtual bool CIccTag::Read ( icUInt32Number  size, CIccIO *  pIO, CIccProfile *  pProfile  )

inlinevirtualinherited

Function: Read(size, pIO) - Read tag from file. Each derived tag will implement it's own Read() function.

Parameter(s): size - number of bytes in tag including the type signature. pIO - IO object used to read in tag. The IO object should already be initialized to point to the begining of the tag.

Returns true if Read is successful.

Reimplemented in CIccTagEmbeddedProfile.

{ return Read(size, pIO); }

References CIccTag::Read().

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ReadAll()

virtual bool CIccTag::ReadAll ( )

inlinevirtualinherited

Function: ReadAll() - Read All sub data for tag from file. Called by CIccProfile::ReadAll() to read all sub data for tag

Returns true if ReadAll is successful.

Reimplemented in CIccTagEmbeddedProfile.

{ return true; }

SetFunctionType()

bool CIccTagParametricCurve::SetFunctionType

(

icUInt16Number

nFunctionType

)

Name: CIccTagParametricCurve::SetFunctionType

Purpose: Sets the type of the function the Parametric curve represents

Args: nFunctionType = the type of the function encoded as 0-4

Return: always true!!

{
  icUInt16Number nNumParam;
 
  switch(nFunctionType) {
    case 0x0000:
      nNumParam = 1;
      break;
 
    case 0x0001:
      nNumParam = 3;
      break;
 
    case 0x0002:
      nNumParam = 4;
      break;
 
    case 0x0003:
      nNumParam = 5;
      break;
 
    case 0x0004:
      nNumParam = 7;
      break;
 
    default:
      nNumParam = 0;
  }
 
  if (m_dParam)
    delete m_dParam;
  m_nNumParam = nNumParam;
  m_nFunctionType = nFunctionType;
 
  if (m_nNumParam)
    m_dParam = new icFloatNumber[m_nNumParam];
  else
    m_dParam = NULL;
 
  return true;
}

References m_dParam, m_nFunctionType, and m_nNumParam.

Referenced by CIccTagXmlParametricCurve::ParseXml(), and Read().

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Validate()

icValidateStatus CIccTagParametricCurve::Validate ( std::string  sigPath, std::string &  sReport, const CIccProfile *  pProfile = NULL  ) const

virtual

Name: CIccTagParametricCurve::Validate

Purpose: Check tag data validity.

Args: sig = signature of tag being validated, sReport = String to add report information to

Return: icValidateStatusOK if valid, or other error status.

Reimplemented from CIccTag.

{
  icValidateStatus rv = CIccTag::Validate(sigPath, sReport, pProfile);
 
  CIccInfo Info;
  std::string sSigPathName = Info.GetSigPathName(sigPath);
  icSignature sig = icGetFirstSigPathSig(sigPath);
 
  if (m_nReserved2!=0) {
    sReport += icMsgValidateNonCompliant;
    sReport += sSigPathName;
    sReport += " - Reserved Value must be zero.\n";
 
    rv = icMaxStatus(rv, icValidateNonCompliant);
  }
 
  switch(m_nFunctionType) {
case 0x0000:
  if (m_nNumParam!=1) {
    sReport += icMsgValidateCriticalError;
    sReport += sSigPathName;
    sReport += " - Number of parameters inconsistent with function type.\n";
    rv = icMaxStatus(rv, icValidateCriticalError);
  }
  break;
 
case 0x0001:
  if (m_nNumParam!=3) {
    sReport += icMsgValidateCriticalError;
    sReport += sSigPathName;
    sReport += " - Number of parameters inconsistent with function type.\n";
    rv = icMaxStatus(rv, icValidateCriticalError);
  }
  break;
 
case 0x0002:
  if (m_nNumParam!=4) {
    sReport += icMsgValidateCriticalError;
    sReport += sSigPathName;
    sReport += " - Number of parameters inconsistent with function type.\n";
    rv = icMaxStatus(rv, icValidateCriticalError);
  }
  break;
 
case 0x0003:
  if (m_nNumParam!=5) {
    sReport += icMsgValidateCriticalError;
    sReport += sSigPathName;
    sReport += " - Number of parameters inconsistent with function type.\n";
    rv = icMaxStatus(rv, icValidateCriticalError);
  }
  break;
 
case 0x0004:
  if (m_nNumParam!=7) {
    sReport += icMsgValidateCriticalError;
    sReport += sSigPathName;
    sReport += " - Number of parameters inconsistent with function type.\n";
    rv = icMaxStatus(rv, icValidateCriticalError);
  }
  break;
 
default:
  sReport += icMsgValidateCriticalError;
  sReport += sSigPathName;
  sReport += " - Unknown function type.\n";
  rv = icMaxStatus(rv, icValidateCriticalError);
  }
 
  if (sig==icSigBlueTRCTag || sig==icSigRedTRCTag || sig==icSigGreenTRCTag || sig==icSigGrayTRCTag) {
    icFloatNumber lval = Apply(0.0);
    icFloatNumber uval = Apply(1.0);
    if (lval>0.0 || uval<1.0) {
      sReport += icMsgValidateWarning;
      sReport += sSigPathName;
      sReport += " - Curve cannot be accurately inverted.\n";
      rv = icMaxStatus(rv, icValidateWarning);
    }
  }
 
  return rv;
}

References Apply(), CIccInfo::GetSigPathName(), icGetFirstSigPathSig(), icMaxStatus(), icMsgValidateCriticalError, icMsgValidateNonCompliant, icMsgValidateWarning, icSigBlueTRCTag, icSigGrayTRCTag, icSigGreenTRCTag, icSigRedTRCTag, icValidateCriticalError, icValidateNonCompliant, icValidateWarning, m_nFunctionType, m_nNumParam, m_nReserved2, and CIccTag::Validate().

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Write()

bool CIccTagParametricCurve::Write ( CIccIO *  pIO )

virtual

Name: CIccTagParametricCurve::Write

Purpose: Write the tag to a file

Args: pIO - The IO object to write tag to.

Return: true = succesful, false = failure

Reimplemented from CIccTag.

{
  icTagTypeSignature sig;
 
  if (!pIO) {
    return false;
  }
 
  sig = GetType();
 
  if (!pIO->Write32(&sig) ||
    !pIO->Write32(&m_nReserved) ||
    !pIO->Write16(&m_nFunctionType) ||
    !pIO->Write16(&m_nReserved2))
    return false;
 
  if (m_nNumParam) {
    int i;
    for (i=0; i<m_nNumParam; i++) {
      icS15Fixed16Number num = icDtoF(m_dParam[i]);
      if (!pIO->Write32(&num, 1))
        return false;
    }
  }
 
  if (!pIO->Align32())
    return false;
 
  return true;
}

References CIccIO::Align32(), GetType(), icDtoF(), m_dParam, m_nFunctionType, m_nNumParam, CIccTag::m_nReserved, m_nReserved2, CIccIO::Write16(), and CIccIO::Write32().

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Field Documentation

m_dParam

icFloatNumber* CIccTagParametricCurve::m_dParam

protected

Referenced by CIccTagParametricCurve(), CIccTagParametricCurve(), ~CIccTagParametricCurve(), Apply(), Describe(), GetParams(), IsIdentity(), operator=(), operator[](), Param(), Read(), SetFunctionType(), CIccTagXmlParametricCurve::ToXml(), and Write().

m_nFunctionType

icUInt16Number CIccTagParametricCurve::m_nFunctionType

protected

Referenced by CIccTagParametricCurve(), CIccTagParametricCurve(), Apply(), Describe(), GetFunctionType(), IsIdentity(), operator=(), SetFunctionType(), CIccTagXmlParametricCurve::ToXml(), Validate(), and Write().

m_nNumParam

icUInt16Number CIccTagParametricCurve::m_nNumParam

protected

Referenced by CIccTagParametricCurve(), CIccTagParametricCurve(), Describe(), GetNumParam(), operator=(), Read(), SetFunctionType(), CIccTagXmlParametricCurve::ToXml(), Validate(), and Write().

m_nReserved

icUInt32Number CIccTag::m_nReserved

inherited

Referenced by CIccTag::CIccTag(), CIccTagMultiProcessElement::CIccTagMultiProcessElement(), CIccTagMultiProcessElement::CIccTagMultiProcessElement(), CIccTagMultiProcessElement::operator=(), CIccProfileXml::ParseTag(), CIccTagXmlStruct::ParseTag(), CIccMpeXmlTintArray::ParseXml(), CIccTagXmlArray::ParseXml(), CIccTagText::Read(), CIccTagUtf8Text::Read(), CIccTagZipUtf8Text::Read(), CIccTagUtf16Text::Read(), CIccTagTextDescription::Read(), CIccTagSignature::Read(), CIccTagNamedColor2::Read(), CIccTagXYZ::Read(), CIccTagChromaticity::Read(), CIccTagCicp::Read(), CIccTagSparseMatrixArray::Read(), CIccTagFixedNum< T, Tsig >::Read(), CIccTagNum< T, Tsig >::Read(), CIccTagFloatNum< T, Tsig >::Read(), CIccTagMeasurement::Read(), CIccTagMultiLocalizedUnicode::Read(), CIccTagData::Read(), CIccTagDateTime::Read(), CIccTagColorantOrder::Read(), CIccTagColorantTable::Read(), CIccTagViewingConditions::Read(), CIccTagProfileSeqDesc::Read(), CIccTagResponseCurveSet16::Read(), CIccTagSpectralDataInfo::Read(), CIccTagSpectralViewingConditions::Read(), CIccTagEmbeddedHeightImage::Read(), CIccTagEmbeddedNormalImage::Read(), CIccTagStruct::Read(), CIccTagArray::Read(), CIccTagDict::Read(), CIccTagCurve::Read(), Read(), CIccTagLutAtoB::Read(), CIccTagLut8::Read(), CIccTagLut16::Read(), CIccTagGamutBoundaryDesc::Read(), CIccTagMultiProcessElement::Read(), CIccTagProfileSequenceId::Read(), CIccTagEmbeddedProfile::Read(), CIccTag::Validate(), CIccTagText::Write(), CIccTagUtf8Text::Write(), CIccTagZipUtf8Text::Write(), CIccTagUtf16Text::Write(), CIccTagTextDescription::Write(), CIccTagSignature::Write(), CIccTagNamedColor2::Write(), CIccTagXYZ::Write(), CIccTagChromaticity::Write(), CIccTagCicp::Write(), CIccTagSparseMatrixArray::Write(), CIccTagFixedNum< T, Tsig >::Write(), CIccTagNum< T, Tsig >::Write(), CIccTagFloatNum< T, Tsig >::Write(), CIccTagMeasurement::Write(), CIccTagMultiLocalizedUnicode::Write(), CIccTagData::Write(), CIccTagDateTime::Write(), CIccTagColorantOrder::Write(), CIccTagColorantTable::Write(), CIccTagViewingConditions::Write(), CIccTagProfileSeqDesc::Write(), CIccTagResponseCurveSet16::Write(), CIccTagSpectralDataInfo::Write(), CIccTagSpectralViewingConditions::Write(), CIccTagEmbeddedHeightImage::Write(), CIccTagEmbeddedNormalImage::Write(), CIccTagStruct::Write(), CIccTagArray::Write(), CIccTagDict::Write(), CIccTagEmbeddedProfile::Write(), CIccTagCurve::Write(), Write(), CIccTagLutAtoB::Write(), CIccTagLut8::Write(), CIccTagLut16::Write(), CIccTagGamutBoundaryDesc::Write(), CIccTagMultiProcessElement::Write(), and CIccTagProfileSequenceId::Write().

m_nReserved2

icUInt16Number CIccTagParametricCurve::m_nReserved2

Referenced by CIccTagParametricCurve(), CIccTagParametricCurve(), CIccTagXmlParametricCurve::ParseXml(), Read(), CIccTagXmlParametricCurve::ToXml(), Validate(), and Write().

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

• IccProfLib/IccTagLut.h
• IccProfLib/IccTagLut.cpp