CIccTagCurve Class Reference

#include <IccTagLut.h>

Inheritance diagram for CIccTagCurve:

Collaboration diagram for CIccTagCurve:

Public Member Functions
	CIccTagCurve (const CIccTagCurve &ITCurve)
	CIccTagCurve (int nSize=0)
virtual	~CIccTagCurve ()
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
icFloatNumber *	GetData (icUInt32Number index)
virtual IIccExtensionTag *	GetExtension ()
icUInt32Number	GetSize () 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
CIccTagCurve &	operator= (const CIccTagCurve &CurveTag)
icFloatNumber &	operator[] (icUInt32Number index)
virtual bool	Read (icUInt32Number size, CIccIO *pIO)
virtual bool	Read (icUInt32Number size, CIccIO *pIO, CIccProfile *pProfile)
virtual bool	ReadAll ()
bool	SetGamma (icFloatNumber gamma)
bool	SetSize (icUInt32Number nSize, icTagCurveSizeInit nSizeOpt=icInitZero)
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

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

Protected Attributes
icFloatNumber *	m_Curve
icUInt16Number	m_nMaxIndex
icUInt32Number	m_nSize

Detailed Description

Class: CIccTagCurve

Purpose: The curveType tag

Constructor & Destructor Documentation

CIccTagCurve() [1/2]

CIccTagCurve::CIccTagCurve

(

int

nSize = 0

)

Name: CIccTagCurve::CIccTagCurve

Purpose: Constructor

{
    m_nSize = nSize <0 ? 0 : nSize;
  if (m_nSize>0)
    m_Curve = (icFloatNumber*)calloc(nSize, sizeof(icFloatNumber));
  else
    m_Curve = NULL;
}

References m_Curve, and m_nSize.

Referenced by CDevLinkWriter::begin(), and main().

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CIccTagCurve() [2/2]

CIccTagCurve::CIccTagCurve

(

const CIccTagCurve &

ITCurve

)

Name: CIccTagCurve::CIccTagCurve

Purpose: Copy Constructor

Args: ITCurve = The CIccTagCurve object to be copied

{
  m_nSize = ITCurve.m_nSize;
  m_nMaxIndex = ITCurve.m_nMaxIndex;
 
  m_Curve = (icFloatNumber*)calloc(m_nSize, sizeof(icFloatNumber));
  memcpy(m_Curve, ITCurve.m_Curve, m_nSize*sizeof(icFloatNumber));
}

References m_Curve, m_nMaxIndex, and m_nSize.

Referenced by NewCopy().

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~CIccTagCurve()

CIccTagCurve::~CIccTagCurve ( )

virtual

Name: CIccTagCurve::~CIccTagCurve

Purpose: Destructor

{
  if (m_Curve)
    free(m_Curve);
}

References m_Curve.

Member Function Documentation

Apply()

icFloatNumber CIccTagCurve::Apply ( icFloatNumber  v ) const

virtual

Name: CIccTagCurve::Apply

Purpose: Applies the curve to the value passed.

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

Return: The value modified by the curve.

Reimplemented from CIccCurve.

{
  if(v<0.0) v = 0.0;
  else if(v>1.0) v = 1.0;
 
  icUInt32Number nIndex = (icUInt32Number)(v * m_nMaxIndex);
 
  if (!m_nSize) {
    return v;
  }
  if (m_nSize==1) {
    //Convert 0.0 to 1.0 float to 16bit and then convert from u8Fixed8Number
    icFloatNumber dGamma = (icFloatNumber)(m_Curve[0] * 65535.0 / 256.0);
    return (icFloatNumber)pow(v, dGamma);
  }
  if (nIndex == m_nMaxIndex) {
    return m_Curve[nIndex];
  }
  else {
    icFloatNumber nDif = v*m_nMaxIndex - nIndex;
    icFloatNumber p0 = m_Curve[nIndex];
 
    icFloatNumber rv = p0 + (m_Curve[nIndex+1]-p0)*nDif;
    if (rv>1.0)
      rv=1.0;
 
    return rv;
  }
}

References m_Curve, m_nMaxIndex, and m_nSize.

Referenced by CIccTagLut8::Write().

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Begin()

virtual void CIccTagCurve::Begin ( )

inlinevirtual

Reimplemented from CIccCurve.

{m_nMaxIndex = (icUInt16Number)m_nSize - 1;}

References m_nMaxIndex, and m_nSize.

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 CIccTagCurve::Describe ( std::string &  sDescription, int  nVerboseness  )

virtual

Name: CIccTagCurve::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], *ptr;
 
  if (!m_nSize) {
    sprintf(buf, "BEGIN_CURVE In_Out\n");
    sDescription += buf;
    sDescription += "Y = X\n";
  }
  else if (m_nSize==1) {
    icFloatNumber dGamma = (icFloatNumber)(m_Curve[0] * 256.0);
    sprintf(buf, "BEGIN_CURVE In_Out\n");
    sDescription += buf;
    sprintf(buf, "Y = X ^ %.4lf\n", dGamma);
    sDescription += buf;
  }
  else {
    int i;
 
    sprintf(buf, "BEGIN_LUT In_Out 1 1\n");
    sDescription += buf;
 
    if (nVerboseness > 75) {
      sDescription += "IN OUT\n";
 
      for (i=0; i<(int)m_nSize; i++) {
        ptr = buf;
 
        icColorValue(buf, (icFloatNumber)i/(m_nSize-1), icSigMCH1Data, 1);
        ptr += strlen(buf);
 
        strcpy(ptr, " ");
        ptr ++;
 
        icColorValue(ptr, m_Curve[i], icSigMCH1Data, 1);
 
        ptr += strlen(ptr);
 
        strcpy(ptr, "\n");
       sDescription += buf;
      }
    }
  }
}

References icColorValue(), icSigMCH1Data, m_Curve, and m_nSize.

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

virtual

Name: CIccTagCurve::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 LUT data, nIndex = the channel number of color space

Reimplemented from CIccCurve.

{
  icChar buf[128], *ptr;
 
  if (!m_nSize) {
    sprintf(buf, "BEGIN_CURVE %s\n", szName);
    sDescription += buf;
    sDescription += "Y = X\n";
  }
  else if (m_nSize==1) {
    icFloatNumber dGamma = (icFloatNumber)(m_Curve[0] * 256.0);
    sprintf(buf, "BEGIN_CURVE %s\n", szName);
    sDescription += buf;
    sprintf(buf, "Y = X ^ %.4lf\n", dGamma);
    sDescription += buf;
  }
  else {
    int i;
 
    sprintf(buf, "BEGIN_LUT %s 1 1\n", szName);
 
    if (nVerboseness > 75) {
      sDescription += buf;
      sDescription += "IN OUT\n";
 
      sDescription.reserve(sDescription.size() + m_nSize * 20);
 
      for (i=0; i<(int)m_nSize; i++) {
        ptr = buf;
 
        icColorValue(buf, (icFloatNumber)i/(m_nSize-1), csSig, nIndex);
        ptr += strlen(buf);
 
        strcpy(ptr, " ");
        ptr ++;
 
        icColorValue(ptr, m_Curve[i], csSig, nIndex);
 
        ptr += strlen(ptr);
 
        strcpy(ptr, "\n");
 
        sDescription += buf;
      }
    }
  }
}

References icColorValue(), m_Curve, and m_nSize.

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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 * CIccTagCurve::GetClassName ( ) const

inlinevirtual

Reimplemented from CIccTag.

Reimplemented in CIccTagXmlCurve.

{ return "CIccTagCurve"; }

GetData()

icFloatNumber * CIccTagCurve::GetData ( icUInt32Number  index )

inline

{return &m_Curve[index];}

References m_Curve.

Referenced by CIccTagXmlCurve::ParseXml().

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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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GetSize()

icUInt32Number CIccTagCurve::GetSize ( ) const

inline

{ return m_nSize; }

References m_nSize.

Referenced by CIccTagLut8::Validate(), CIccTagLut16::Validate(), CIccTagLut8::Write(), and CIccTagLut16::Write().

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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 CIccTagCurve::GetType ( ) const

inlinevirtual

Function: GetType()

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

Reimplemented from CIccTag.

{ return icSigCurveType; }

References icSigCurveType.

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 CIccTagCurve::IsIdentity ( )

virtual

Name: CIccTagCurve::IsIdentity

Purpose: Checks if this is an identity curve.

Return: true if the curve is an identity

Reimplemented from CIccCurve.

{
  if (!m_nSize) {
    return true;
  }
 
  if (m_nSize==1) {
    return  IsUnity(icFloatNumber(m_Curve[0]*65535.0/256.0));
  }
 
  icUInt32Number i;
  for (i=0; i<m_nSize; i++) {
    if (fabs(m_Curve[i]-((icFloatNumber)i/(icFloatNumber)m_nMaxIndex))>VERYSMALLNUM) {
      return false;
    }
  }
 
  return true;
}

References IsUnity(), m_Curve, m_nMaxIndex, m_nSize, and VERYSMALLNUM.

Referenced by CIccTagXmlCurve::ToXml().

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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 * CIccTagCurve::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 CIccTagCurve(*this);}

References CIccTagCurve().

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operator=()

CIccTagCurve & CIccTagCurve::operator=

(

const CIccTagCurve &

CurveTag

)

Name: CIccTagCurve::operator=

Purpose: Copy Operator

Args: CurveTag = The CIccTagCurve object to be copied

{
  if (&CurveTag == this)
    return *this;
 
  m_nSize = CurveTag.m_nSize;
  m_nMaxIndex = CurveTag.m_nMaxIndex;
 
  if (m_Curve)
    free(m_Curve);
  m_Curve = (icFloatNumber*)calloc(m_nSize, sizeof(icFloatNumber));
  memcpy(m_Curve, CurveTag.m_Curve, m_nSize*sizeof(icFloatNumber));
 
  return *this;
}

References m_Curve, m_nMaxIndex, and m_nSize.

operator[]()

icFloatNumber & CIccTagCurve::operator[] ( icUInt32Number  index )

inline

{return m_Curve[index];}

References m_Curve.

Referenced by main(), CIccTagLut8::Read(), CIccTagLut16::Read(), CIccTagLut8::Write(), and CIccTagLut16::Write().

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Read() [1/2]

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

virtual

Name: CIccTagCurve::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;
 
  icUInt32Number headerSize = sizeof(icTagTypeSignature) +
                              sizeof(icUInt32Number) +
                              sizeof(icUInt32Number);
  if (headerSize > size)
    return false;
 
  if (!pIO) {
    return false;
  }
 
  if (!pIO->Read32(&sig))
    return false;
 
  if (!pIO->Read32(&m_nReserved))
    return false;
 
  icUInt32Number nSize;
 
  if (!pIO->Read32(&nSize))
    return false;
 
  if (headerSize + (icUInt64Number)nSize * sizeof(icUInt16Number) > size)
    return false;
 
  if (!SetSize(nSize, icInitNone))
    return false;
 
  if (m_nSize) {
    if (pIO->ReadUInt16Float(m_Curve, m_nSize)!=(icInt32Number)m_nSize)
      return false;
  }
 
  return true;
}

References icInitNone, m_Curve, CIccTag::m_nReserved, m_nSize, CIccIO::Read32(), CIccIO::ReadUInt16Float(), and SetSize().

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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; }

SetGamma()

bool CIccTagCurve::SetGamma

(

icFloatNumber

gamma

)

Name: refIccMAX::CIccTagCurve::SetGamma

Purpose: Set the curve with a single gamma value.

Args: gamma - gamma value to use

{
  if (!SetSize(1, icInitNone))
    return false;
 
  icInt16Number whole = (icInt16Number)gamma;
  icFloatNumber frac = gamma - (icFloatNumber)whole;
 
  m_Curve[0] = (icFloatNumber)((whole * 256) + (frac*256.0)) / (icFloatNumber)65535.0; 
  return true;
}

References icInitNone, m_Curve, and SetSize().

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SetSize()

bool CIccTagCurve::SetSize	(	icUInt32Number	nSize,
		icTagCurveSizeInit	nSizeOpt = icInitZero
	)

Name: CIccTagCurve::SetSize

Purpose: Sets the size of the curve array.

Args: nSize - number of entries in the curve, nSizeOpt - flag to zero newly formed values

{
  if (nSize==m_nSize)
    return true;
 
  if (!nSize && m_Curve) {
    free(m_Curve);
    m_Curve = NULL;
  }
  else {
    if (!m_Curve)
      m_Curve = (icFloatNumber*)malloc(nSize*sizeof(icFloatNumber));
    else
      m_Curve = (icFloatNumber*)icRealloc(m_Curve, nSize*sizeof(icFloatNumber));
 
    if (!m_Curve) {
      m_nSize = 0;
      return false;
    }
 
    switch (nSizeOpt) {
    case icInitNone:
    default:
      break;
 
    case icInitZero:
      if (m_nSize < nSize) {
        memset(&m_Curve[m_nSize], 0, (nSize-m_nSize)*sizeof(icFloatNumber));
      }
      break;
 
    case icInitIdentity:
      if (nSize>1) {
        icUInt32Number i;
        icFloatNumber last = (icFloatNumber)(nSize-1);
 
        for (i=0; i<nSize; i++) {
          m_Curve[i] = (icFloatNumber)i/last;
        }
      }
      else if (nSize==1) {
        //Encode a gamma 1.0 u8Fixed8Number converted to 16 bit as a 0.0 to 1.0 float
        m_Curve[0] = (icFloatNumber)(0x0100) / (icFloatNumber)65535.0;
      }
      break;
    }
  }
  m_nSize = nSize;
  m_nMaxIndex = (icUInt16Number)(nSize - 1);
 
  return true;
}

References icInitIdentity, icInitNone, icInitZero, icRealloc(), m_Curve, m_nMaxIndex, and m_nSize.

Referenced by CIccTagXmlCurve::ParseXml(), Read(), CIccTagLut8::Read(), CIccTagLut16::Read(), CIccTagLut8::SetColorSpaces(), CIccTagLut16::SetColorSpaces(), and SetGamma().

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Validate()

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

virtual

Name: CIccTagCurve::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 (sig==icSigBlueTRCTag || sig==icSigRedTRCTag || sig==icSigGreenTRCTag || sig==icSigGrayTRCTag) {
    if (m_nSize>1) {
      if (m_Curve) {
        if (m_Curve[0]>0.0 || m_Curve[m_nSize-1]<1.0) {
          sReport += icMsgValidateWarning;
          sReport += sSigPathName;
          sReport += " - Curve cannot be accurately inverted.\n";
          rv = icMaxStatus(rv, icValidateWarning);
        }
      }
    }
  }
 
  return rv;
}

References CIccInfo::GetSigPathName(), icGetFirstSigPathSig(), icMaxStatus(), icMsgValidateWarning, icSigBlueTRCTag, icSigGrayTRCTag, icSigGreenTRCTag, icSigRedTRCTag, icValidateWarning, m_Curve, m_nSize, and CIccTag::Validate().

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Write()

bool CIccTagCurve::Write ( CIccIO *  pIO )

virtual

Name: CIccTagCurve::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 = GetType();
 
  if (!pIO)
    return false;
 
  if (!pIO->Write32(&sig))
    return false;
 
  if (!pIO->Write32(&m_nReserved))
    return false;
 
  if (!pIO->Write32(&m_nSize))
    return false;
 
  if (m_nSize)
    if (pIO->WriteUInt16Float(m_Curve, m_nSize)!=(icInt32Number)m_nSize)
      return false;
 
  pIO->Align32();
 
  return true;
}

References CIccIO::Align32(), GetType(), m_Curve, CIccTag::m_nReserved, m_nSize, CIccIO::Write32(), and CIccIO::WriteUInt16Float().

Here is the call graph for this function:

Field Documentation

m_Curve

icFloatNumber* CIccTagCurve::m_Curve

protected

Referenced by CIccTagCurve(), CIccTagCurve(), ~CIccTagCurve(), Apply(), Describe(), DumpLut(), GetData(), IsIdentity(), operator=(), operator[](), Read(), SetGamma(), SetSize(), CIccTagXmlCurve::ToXml(), Validate(), and Write().

m_nMaxIndex

icUInt16Number CIccTagCurve::m_nMaxIndex

protected

Referenced by CIccTagCurve(), Apply(), Begin(), IsIdentity(), operator=(), and SetSize().

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(), Read(), CIccTagParametricCurve::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(), Write(), CIccTagParametricCurve::Write(), CIccTagLutAtoB::Write(), CIccTagLut8::Write(), CIccTagLut16::Write(), CIccTagGamutBoundaryDesc::Write(), CIccTagMultiProcessElement::Write(), and CIccTagProfileSequenceId::Write().

m_nSize

icUInt32Number CIccTagCurve::m_nSize

protected

Referenced by CIccTagCurve(), CIccTagCurve(), Apply(), Begin(), Describe(), DumpLut(), GetSize(), IsIdentity(), operator=(), CIccTagXmlCurve::ParseXml(), Read(), SetSize(), CIccTagXmlCurve::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