IccUtil.h File Reference

File: IccUtil.h. More...

#include "IccDefs.h"
#include "IccProfLibConf.h"
#include <string>
#include <limits>

Include dependency graph for IccUtil.h:

This graph shows which files directly or indirectly include this file:

Go to the source code of this file.

Classes
class	CIccInfo
	Type: Class. More...
class	CIccPixelBuf
class	IIccCmmEnvVarLookup
	Type: Class. More...

Macros
#define	icDefaultPixelBufSize   100
	Type: Class.
#define	icNegInfinity   (-std::numeric_limits<icFloatNumber>::infinity())
#define	icNotANumber   (std::numeric_limits<icFloatNumber>::quiet_NaN())
#define	icNotZero(v)   ((v)>1.0e-8 || (v)<-1.0e-8)
#define	icPiNum   3.14159265358979323846
#define	icPosInfinity   (std::numeric_limits<icFloatNumber>::infinity())
#define	icSwab16(flt)   icSwab16Ptr(&flt)
#define	icSwab32(flt)   icSwab32Ptr(&flt)
#define	icSwab64(flt)   icSwab64Ptr(&flt)
#define	icUtf8StrCmp(x, y)   strcmp((const char*)x, (const char*)y)

Functions
icUInt8Number	icABtoU8 (icFloatNumber num)
void	icColorIndexName (icChar *szName, icColorSpaceSignature csSig, int nIndex, int nColors, const icChar *szUnknown)
void	icColorValue (icChar *szValue, icFloatNumber nValue, icColorSpaceSignature csSig, int nIndex, bool bUseLegacy=false)
icFloatNumber	icCubeth (icFloatNumber v)
icFloatNumber	icDeltaE (const icFloatNumber *Lab1, const icFloatNumber *Lab2)
void	icDeNormXYZ (icFloatNumber *XYZ, icFloatNumber *WhiteXYZ=NULL)
icS15Fixed16Number	icDtoF (icFloatNumber num)
icU8Fixed8Number	icDtoUCF (icFloatNumber num)
icU16Fixed16Number	icDtoUF (icFloatNumber num)
icU1Fixed15Number	icDtoUSF (icFloatNumber num)
icFloat32Number	icF16toF (icFloat16Number num)
icFloatNumber	icFtoD (icS15Fixed16Number num)
icFloat16Number	icFtoF16 (icFloat32Number num)
icUInt16Number	icFtoU16 (icFloatNumber num)
icUInt8Number	icFtoU8 (icFloatNumber num)
const icChar *	icGet16bitSig (icChar *pBuf, icUInt16Number sig, bool bGetHexVal=true)
const icChar *	icGetColorSig (icChar *pBuf, icUInt32Number sig, bool bGetHexVal=true)
const icChar *	icGetColorSigStr (icChar *pBuf, icUInt32Number nSig)
icSignature	icGetFirstSigPathSig (std::string sigPath)
icSignature	icGetLastSigPathSig (std::string sigPath)
icUInt32Number	icGetMaterialColorSpaceSamples (icMaterialColorSignature sig)
icSignature	icGetSecondSigPathSig (std::string sigPath)
const icChar *	icGetSig (icChar *pBuf, icUInt32Number sig, bool bGetHexVal=true)
std::string	icGetSigPath (icUInt32Number sig)
const icChar *	icGetSigStr (icChar *pBuf, icUInt32Number nSig)
icUInt32Number	icGetSigVal (const icChar *pBuf)
icUInt32Number	icGetSpaceSamples (icColorSpaceSignature sig)
icUInt32Number	icGetSpectralSpaceSamples (const icHeader *pHdr)
icUInt8Number	icGetStorageTypeBytes (icUInt16Number nStorageType)
icFloatNumber	icICubeth (icFloatNumber v)
icUInt32Number	icIntMax (icUInt32Number v1, icUInt32Number v2)
icUInt32Number	icIntMin (icUInt32Number v1, icUInt32Number v2)
bool	icIsIllumD50 (icXYZNumber xyz)
bool	icIsNear (icFloatNumber v1, icFloatNumber v2, icFloatNumber nearRange=1.0e-8)
	Name: icIsNear.
bool	icIsSpaceCLR (icColorSpaceSignature sig)
void	icLab2Lch (icFloatNumber *Lch, icFloatNumber *Lab=NULL)
void	icLabFromPcs (icFloatNumber *Lab)
	Floating point encoding of Lab in PCS is in range 0.0 to 1.0.
void	icLabToPcs (icFloatNumber *Lab)
void	icLabtoXYZ (icFloatNumber *XYZ, const icFloatNumber *Lab=NULL, const icFloatNumber *WhiteXYZ=NULL)
void	icLch2Lab (icFloatNumber *Lab, icFloatNumber *Lch=NULL)
void	icMatrixDump (std::string &sDump, icS15Fixed16Number *pMatrix)
bool	icMatrixInvert3x3 (icFloatNumber *matrix)
	Name: icMatrixInvert3x3.
void	icMatrixMultiply3x3 (icFloatNumber *result, const icFloatNumber *l, const icFloatNumber *r)
	Name: icMatrixMultiply3x3.
icFloatNumber	icMax (icFloatNumber v1, icFloatNumber v2)
icValidateStatus	icMaxStatus (icValidateStatus s1, icValidateStatus s2)
	Name: icMaxStatus.
void	icMemDump (std::string &sDump, void *pBuf, icUInt32Number nNum)
icFloatNumber	icMin (icFloatNumber v1, icFloatNumber v2)
void	icNormXYZ (icFloatNumber *XYZ, icFloatNumber *WhiteXYZ=NULL)
void *	icRealloc (void *ptr, size_t size)
	Name: icRealloc.
icFloatNumber	icRmsDif (const icFloatNumber *v1, const icFloatNumber *v2, icUInt32Number nSample)
double	icRoundOffset (double v)
	Name: icRoundOffset.
bool	icSameSpectralRange (const icSpectralRange &rng1, const icSpectralRange &rng2)
void	icSwab16Array (void *pVoid, int num)
void	icSwab16Ptr (void *pVoid)
void	icSwab32Array (void *pVoid, int num)
void	icSwab32Ptr (void *pVoid)
void	icSwab64Array (void *pVoid, int num)
void	icSwab64Ptr (void *pVoid)
icFloatNumber	icU16toF (icUInt16Number num)
icFloatNumber	icU8toAB (icUInt8Number num)
icFloatNumber	icU8toF (icUInt8Number num)
icFloatNumber	icUCFtoD (icU8Fixed8Number num)
icFloatNumber	icUFtoD (icU16Fixed16Number num)
icFloatNumber	icUSFtoD (icU1Fixed15Number num)
bool	icValidOverlap (const icPositionNumber &pos1, const icPositionNumber &pos2, bool bAllowSame=true)
	Name: icValidOverlap.
bool	icValidTagPos (const icPositionNumber &pos, icUInt32Number nTagHeaderSize, icUInt32Number nTagSize, bool bAllowEmpty=false)
	Name: icValidTagPos.
void	icVectorApplyMatrix3x3 (icFloatNumber *result, const icFloatNumber *m, const icFloatNumber *v)
	Name: icVectorApplyMatrix3x3.
void	icXyzFromPcs (icFloatNumber *XYZ)
	Floating point encoding of XYZ in PCS is in range 0.0 to 1.0 (Note: X=1.0 is encoded as about 0.5)
void	icXYZtoLab (icFloatNumber *Lab, const icFloatNumber *XYZ=NULL, const icFloatNumber *WhiteXYZ=NULL)
void	icXyzToPcs (icFloatNumber *XYZ)

Variables
icFloatNumber	icD50XYZ [3]
icFloatNumber	icD50XYZxx [3]
CIccInfo	icInfo
const char *	icMsgValidateCriticalError
const char *	icMsgValidateInformation
const char *	icMsgValidateNonCompliant
const char *	icMsgValidateWarning

Detailed Description

File: IccUtil.h.

Contains: Implementation of utility classes/functions

Version: V1

Copyright: � see ICC Software License

Definition in file IccUtil.h.

Macro Definition Documentation

icDefaultPixelBufSize

#define icDefaultPixelBufSize   100

Type: Class.

Purpose: This is a utility class which can be for pixel sample storage. It features constant allocation access time when the pixel buffer size is less thatn icDefaultPixelBufSize

Definition at line 373 of file IccUtil.h.

Referenced by CIccPixelBuf::CIccPixelBuf().

icNegInfinity

#define icNegInfinity   (-std::numeric_limits<icFloatNumber>::infinity())

Definition at line 87 of file IccUtil.h.

Referenced by CIccOpDefNegInfinity::Exec(), and CIccOpDefRealNumber::Exec().

icNotANumber

#define icNotANumber   (std::numeric_limits<icFloatNumber>::quiet_NaN())

Definition at line 88 of file IccUtil.h.

Referenced by CIccOpDefEqual::Exec(), CIccOpDefNotANumber::Exec(), CIccOpDefNotEqual::Exec(), and CIccOpDefRealNumber::Exec().

icNotZero

#define icNotZero

(

v

)

((v)>1.0e-8 || (v)<-1.0e-8)

Definition at line 89 of file IccUtil.h.

Referenced by CIccMpeMatrix::Begin(), CIccSparseMatrix::FillFromFullMatrix(), CIccTagSpectralViewingConditions::setIlluminant(), and CIccMpeXmlMatrix::ToXml().

icPiNum

#define icPiNum   3.14159265358979323846

Definition at line 85 of file IccUtil.h.

Referenced by CIccCamConverter::ab2chDeg(), CIccOpDefCartesianToPolar::Exec(), CIccOpDefPi::Exec(), CIccOpDefPolarToCartesian::Exec(), CIccCamConverter::JabToXYZ(), and CIccCamConverter::XYZToJab().

icPosInfinity

#define icPosInfinity   (std::numeric_limits<icFloatNumber>::infinity())

Definition at line 86 of file IccUtil.h.

Referenced by CIccOpDefPosInfinity::Exec(), and CIccOpDefRealNumber::Exec().

icSwab16

#define icSwab16

(

flt

)

icSwab16Ptr(&flt)

Definition at line 288 of file IccUtil.h.

Referenced by CIccIO::Write16().

icSwab32

#define icSwab32

(

flt

)

icSwab32Ptr(&flt)

Definition at line 289 of file IccUtil.h.

Referenced by CIccIO::Write32().

icSwab64

#define icSwab64

(

flt

)

icSwab64Ptr(&flt)

Definition at line 290 of file IccUtil.h.

Referenced by CIccIO::Write64().

icUtf8StrCmp

#define icUtf8StrCmp	(		x,
			y )   strcmp((const char*)x, (const char*)y)

Definition at line 188 of file IccUtil.h.

Function Documentation

icABtoU8()

icUInt8Number icABtoU8

(

icFloatNumber

num

)

Definition at line 766 of file IccUtil.cpp.

{
  icFloatNumber v = num + 128.0f;
  if (v<0)
    v=0;
  else if (v>255)
    v=255;
 
  return (icUInt8Number)(v + 0.5);
}

icColorIndexName()

void icColorIndexName	(	icChar *	szName,
		icColorSpaceSignature	csSig,
		int	nIndex,
		int	nColors,
		const icChar *	szUnknown )

Definition at line 295 of file IccUtil.cpp.

{
  icChar szSig[5] = {0};
  int i;
 
  if (csSig!=icSigUnknownData) {
    szSig[0] = (icChar)(csSig>>24);
    szSig[1] = (icChar)(csSig>>16);
    szSig[2] = (icChar)(csSig>>8);
    szSig[3] = (icChar)(csSig);
    szSig[4] = '\0';
 
    for (i=3; i>0; i--) {
      if (szSig[i]==' ')
        szSig[i]='\0';
    }
    if (nColors==1) {
      strcpy(szName, szSig);
    }
    else if ((size_t)nColors == strlen(szSig)) {
      sprintf(szName, "%s_%c", szSig, szSig[nIndex]);
    }
    else {
      sprintf(szName, "%s_%d", szSig, nIndex+1);
    }
  }
  else if (nColors==1) {
    strcpy(szName, szUnknown);
  }
  else {
    sprintf(szName, "%s_%d", szUnknown, nIndex+1);
  }
}

References icSigUnknownData, and szName.

Referenced by CIccMBB::Describe(), CIccTagNamedColor2::Describe(), and CIccCLUT::DumpLut().

Here is the caller graph for this function:

icColorValue()

void icColorValue	(	icChar *	szValue,
		icFloatNumber	nValue,
		icColorSpaceSignature	csSig,
		int	nIndex,
		bool	bUseLegacy = false )

Definition at line 330 of file IccUtil.cpp.

{
  if (csSig==icSigLabData) {
    if (!bUseLegacy) {
      if (!nIndex || nIndex>2)
        sprintf(szValue, "%7.3lf", nValue * 100.0);
      else
        sprintf(szValue, "%8.3lf", nValue * 255.0 - 128.0);
    }
    else {
      if (!nIndex || nIndex>2)
        sprintf(szValue, "%7.3lf", nValue * 100.0 * 65535.0 / 65280.0);
      else
        sprintf(szValue, "%8.3lf", nValue * 255.0 * 65535.0 / 65280.0 - 128.0);
    }
  }
  else if (csSig==icSigUnknownData) {
    sprintf(szValue, "%8.5lf", nValue);
  }
  else {
    sprintf(szValue, "%7.3lf", nValue * 100.0);
  }
}

References icSigLabData, and icSigUnknownData.

Referenced by CIccTagCurve::Describe(), CIccTagNamedColor2::Describe(), CIccCLUT::DumpLut(), CIccTagCurve::DumpLut(), and CIccCLUT::Iterate().

Here is the caller graph for this function:

icCubeth()

icFloatNumber icCubeth

(

icFloatNumber

v

)

Definition at line 805 of file IccUtil.cpp.

{
  if (v> 0.008856) {
    return (icFloatNumber)ICC_CBRTF(v);
  }
  else {
    return (icFloatNumber)(7.787037037037037037037037037037*v + 16.0/116.0);
  }
}

References ICC_CBRTF.

Referenced by CIccOpDefToLab::Exec(), and icXYZtoLab().

Here is the caller graph for this function:

icDeltaE()

icFloatNumber icDeltaE	(	const icFloatNumber *	Lab1,
		const icFloatNumber *	Lab2 )

Definition at line 527 of file IccUtil.cpp.

{
  return (icFloatNumber)sqrt(icSq(lab1[0]-lab2[0]) + icSq(lab1[1]-lab2[1]) + icSq(lab1[2]-lab2[2]));
}

References icSq().

Referenced by CIccMinMaxEval::Compare(), CIccPRMG::EvaluateProfile(), CIccTagNamedColor2::FindCachedPCSColor(), and CIccArrayNamedColor::FindPcsColor().

Here is the call graph for this function:

Here is the caller graph for this function:

icDeNormXYZ()

void icDeNormXYZ	(	icFloatNumber *	XYZ,
		icFloatNumber *	WhiteXYZ = NULL )

icDtoF()

icS15Fixed16Number icDtoF

(

icFloatNumber

num

)

Definition at line 545 of file IccUtil.cpp.

{
  icS15Fixed16Number rv;
 
  if (num<-32768.0)
    num = -32768.0;
  else if (num>32767.0)
    num = 32767.0;
 
  rv = (icS15Fixed16Number)icRoundOffset((double)num*65536.0);
 
  return rv;
}

References icRoundOffset().

Referenced by CIccTagLut16::CIccTagLut16(), CIccTagLut8::CIccTagLut8(), CIccDefaultEncProfileConverter::ConvertFromParams(), main(), CIccProfileXml::ParseBasic(), CIccTagXmlFixedNum< T, Tsig >::ParseXml(), CIccTagXmlMeasurement::ParseXml(), CIccTagXmlResponseCurveSet16::ParseXml(), CIccTagXmlViewingConditions::ParseXml(), CIccTagXmlXYZ::ParseXml(), CIccTagLut16::SetColorSpaces(), CIccTagLut8::SetColorSpaces(), CIccTagLut16::Write(), CIccTagLut8::Write(), CIccTagLutAtoB::Write(), and CIccTagParametricCurve::Write().

Here is the call graph for this function:

Here is the caller graph for this function:

icDtoUCF()

icU8Fixed8Number icDtoUCF

(

icFloatNumber

num

)

Definition at line 608 of file IccUtil.cpp.

{
  icU8Fixed8Number rv;
 
  if (num<0)
    num = 0;
  else if (num>255.0)
    num = 255.0;
 
  rv = (icU8Fixed8Number)icRoundOffset(num*256.0);
 
  return rv;
}

References icRoundOffset().

Here is the call graph for this function:

icDtoUF()

icU16Fixed16Number icDtoUF

(

icFloatNumber

num

)

Definition at line 566 of file IccUtil.cpp.

{
  icU16Fixed16Number rv;
 
  if (num<0)
    num = 0;
  else if (num>65535.0)
    num = 65535.0;
 
  rv = (icU16Fixed16Number)icRoundOffset((double)num*65536.0);
 
  return rv;
}

References icRoundOffset().

Referenced by CIccTagXmlChromaticity::ParseXml(), CIccTagXmlFixedNum< T, Tsig >::ParseXml(), and CIccTagChromaticity::Validate().

Here is the call graph for this function:

Here is the caller graph for this function:

icDtoUSF()

icU1Fixed15Number icDtoUSF

(

icFloatNumber

num

)

Definition at line 587 of file IccUtil.cpp.

{
  icU1Fixed15Number rv;
 
  if (num<0)
    num = 0;
  else if (num>65535.0/32768.0)
    num = 65535.0/32768.0;
 
  rv = (icU1Fixed15Number)icRoundOffset(num*32768.0);
 
  return rv;
}

References icRoundOffset().

Here is the call graph for this function:

icF16toF()

icFloat32Number icF16toF

(

icFloat16Number

num

)

Definition at line 629 of file IccUtil.cpp.

{
  icUInt16Number numsgn, numexp, nummnt;
  icUInt32Number rv, rvsgn, rvexp, rvmnt;
  icInt32Number tmpexp;
  icFloatNumber * rvfp, rvf;
  int exp;
 
  if (!(num & 0x7FFF)) {
    rv = ((icUInt32Number) num) << 16;
  } else {
    numsgn = num & 0x8000;
    numexp = num & 0x7C00;
    nummnt = num & 0x03FF;
    if (!numexp) {
      exp = -1;
      do {
        exp++;
        nummnt <<= 1;
      } while (!(nummnt & 0x0400)); // Shift until leading bit overflows into exponent bit
      rvsgn = ((icUInt32Number) numsgn) << 16;
      tmpexp = ((icUInt32Number) (numexp >> 10)) - 15 + 127 - exp;
      rvexp = (icUInt32Number) (tmpexp << 23);
      rvmnt = ((icUInt32Number) (nummnt & 0x03FFu)) << 13;
      rv = (rvsgn | rvexp | rvmnt);
    } else if (numexp == 0x7C00) {
      if (!nummnt) {
        rv = (((icUInt32Number) numsgn) << 16) | ((icUInt32Number) 0x7F800000);
      } else {
        rv = (icUInt32Number) 0xFFC00000;
      }
    } else {
      rvsgn = ((icUInt32Number) numsgn) << 16;
      tmpexp = ((icUInt32Number) (numexp >> 10)) - 15 + 127;
      rvexp = (icUInt32Number) (tmpexp << 23);
      rvmnt = ((icUInt32Number) nummnt) << 13;
      rv = (rvsgn | rvexp | rvmnt);
    }
  }
  rvfp = (icFloatNumber*)&rv;
  rvf = *rvfp;
  return rvf;
}

Referenced by CIccInfo::CheckData(), CIccMpeSpectralMatrix::Describe(), CIccMpeSpectralObserver::Describe(), CIccTagEmbeddedProfile::Describe(), CIccTagSpectralDataInfo::Describe(), CIccTagSpectralViewingConditions::Describe(), CIccSparseMatrixFloat16::get(), main(), main(), MyChild::MyChild(), CIccSampledCurveSegmentXml::ParseXml(), CIccSinglSampledeCurveXml::ParseXml(), CIccIO::ReadFloat16Float(), CIccMatrixMath::SetRange(), CIccMpeXmlEmissionCLUT::ToXml(), CIccMpeXmlEmissionMatrix::ToXml(), CIccMpeXmlEmissionObserver::ToXml(), CIccMpeXmlInvEmissionMatrix::ToXml(), CIccMpeXmlReflectanceCLUT::ToXml(), CIccMpeXmlReflectanceObserver::ToXml(), CIccTagXmlSpectralDataInfo::ToXml(), CIccTagXmlSpectralViewingConditions::ToXml(), and CIccProfileXml::ToXmlWithBlanks().

Here is the caller graph for this function:

icFtoD()

icFloatNumber icFtoD

(

icS15Fixed16Number

num

)

Definition at line 559 of file IccUtil.cpp.

{
  icFloatNumber rv = (icFloatNumber)((double)num / 65536.0);
 
  return rv;
}

Referenced by CIccResponseCurveStruct::Describe(), CIccTagEmbeddedProfile::Describe(), CIccTagFixedNum< T, Tsig >::Describe(), CIccTagMeasurement::Describe(), CIccTagViewingConditions::Describe(), CIccTagXYZ::Describe(), CIccTagFixedNum< T, Tsig >::GetValues(), icIsS15Fixed16NumberNear(), icMatrixDump(), CIccTagFixedNum< T, Tsig >::Interpolate(), main(), MyChild::MyChild(), CIccTagLutAtoB::Read(), CIccTagParametricCurve::Read(), CIccTagLut16::SetColorSpaces(), CIccTagLut8::SetColorSpaces(), CIccTagXmlFixedNum< T, Tsig >::ToXml(), CIccTagXmlMeasurement::ToXml(), CIccTagXmlResponseCurveSet16::ToXml(), CIccTagXmlViewingConditions::ToXml(), CIccTagXmlXYZ::ToXml(), CIccProfileXml::ToXmlWithBlanks(), and CIccTagFixedNum< T, Tsig >::ValuePos().

Here is the caller graph for this function:

icFtoF16()

icFloat16Number icFtoF16

(

icFloat32Number

num

)

Definition at line 673 of file IccUtil.cpp.

{
  icUInt16Number rv;
  icUInt16Number rvsgn, rvexp, rvmnt;
  icUInt32Number flt, *fltp, fltsgn, fltexp, fltmnt;
  int exp;
 
  fltp = (icUInt32Number*)#
  flt = *fltp;
  if (!(flt & 0x7FFFFFFF)) {
    rv = (icUInt16Number) (flt >> 16);
  } else { 
    fltsgn = flt & 0x80000000;
    fltexp = flt & 0x7F800000;
    fltmnt = flt & 0x007FFFFF;
    if (!fltexp) {
      rv = (icUInt16Number) (fltsgn >> 16);
    } else if (fltexp == 0x7F800000) {
      if (!fltmnt) {
        rv = (icUInt16Number) ((fltsgn >> 16) | 0x7C00); // Signed Inf
      } else {
        rv = (icUInt16Number) 0xFE00; // NaN
      }
    } else { // Normalized number
      rvsgn = (icUInt16Number) (fltsgn >> 16);
      exp = ((int)(fltexp >> 23)) - 127 + 15;
      if (exp >= 0x1F) {  // Overflow
        rv = (icUInt16Number) ((fltsgn >> 16) | 0x7C00); // Signed Inf
      } else if (exp <= 0) {  // Underflow
        if ((14 - exp) > 24) {
          rvmnt = (icUInt16Number) 0;  // Set mantissa to zero
        } else {
          fltmnt |= 0x00800000;  // Include hidden leading bit
          rvmnt = (icUInt16Number) (fltmnt >> (14 - exp));
          if ((fltmnt >> (13 - exp)) & 0x00000001) // Rounding?
            rvmnt += (icUInt16Number) 1;
        }
        rv = (rvsgn | rvmnt);
      } else {
        rvexp = (icUInt16Number) (exp << 10);
        rvmnt = (icUInt16Number) (fltmnt >> 13);
        if (fltmnt & 0x00001000) // Rounding?
          rv = (rvsgn | rvexp | rvmnt) + (icUInt16Number) 1; 
        else
          rv = (rvsgn | rvexp | rvmnt);
      }
    }
  }
  return rv;
}

Referenced by CIccProfileXml::ParseBasic(), CIccMpeXmlEmissionCLUT::ParseXml(), CIccMpeXmlEmissionMatrix::ParseXml(), CIccMpeXmlEmissionObserver::ParseXml(), CIccMpeXmlInvEmissionMatrix::ParseXml(), CIccMpeXmlReflectanceCLUT::ParseXml(), CIccMpeXmlReflectanceObserver::ParseXml(), CIccTagXmlSpectralDataInfo::ParseXml(), CIccTagXmlSpectralViewingConditions::ParseXml(), CIccSparseMatrixFloat16::set(), and CIccIO::WriteFloat16Float().

Here is the caller graph for this function:

icFtoU16()

icUInt16Number icFtoU16

(

icFloatNumber

num

)

Definition at line 745 of file IccUtil.cpp.

{
  icUInt16Number rv;
 
  if (num<0)
    num = 0;
  else if (num>1.0)
    num = 1.0;
 
  rv = (icUInt16Number)icRoundOffset(num*65535.0);
 
  return rv;
}

References icRoundOffset().

Referenced by CIccTagXmlColorantTable::ParseXml().

Here is the call graph for this function:

Here is the caller graph for this function:

icFtoU8()

icUInt8Number icFtoU8

(

icFloatNumber

num

)

Definition at line 724 of file IccUtil.cpp.

{
  icUInt8Number rv;
 
  if (num<0)
    num = 0;
  else if (num>1.0)
    num = 1.0;
 
  rv = (icUInt8Number)icRoundOffset(num*255.0);
 
  return rv;
}

References icRoundOffset().

Here is the call graph for this function:

icGet16bitSig()

const icChar * icGet16bitSig	(	icChar *	pBuf,
		icUInt16Number	sig,
		bool	bGetHexVal = true )

Definition at line 1000 of file IccUtil.cpp.

{
    icUInt16Number sig = nSig;
    icUInt8Number c;
 
    if (!nSig) {
        strcpy(pBuf, "NULL");
        return pBuf;
    }
 
    pBuf[0] = '\'';
    c = (icUInt8Number)(sig >> 8);
    if (!isprint(c))
        c = '?';
    pBuf[1] = c;
    c = (icUInt8Number)(sig & 0x00FF);
    if (!isprint(c))
        c = '?';
    pBuf[2] = c;
 
    if (bGetHexVal)
        sprintf(pBuf + 3, "' = %04X", nSig);
    else
        sprintf(pBuf + 3, "'");
 
    return pBuf;
}

References sig.

icGetColorSig()

const icChar * icGetColorSig	(	icChar *	pBuf,
		icUInt32Number	sig,
		bool	bGetHexVal = true )

Definition at line 1088 of file IccUtil.cpp.

{
  icUInt32Number sig=nSig;
 
  switch (icGetColorSpaceType(nSig)) {
    case icSigNChannelData:
    case icSigReflectanceSpectralData:
    case icSigTransmisionSpectralData:
    case icSigRadiantSpectralData:
    case icSigBiSpectralReflectanceData:
    case icSigSparseMatrixReflectanceData:
 
      pBuf[0]='\"';
      pBuf[1] = (icUInt8Number)(sig>>24);
      sig<<=8;
      pBuf[2] = (icUInt8Number)(sig>>24);
      sprintf(pBuf+3, "%04X\"", icNumColorSpaceChannels(nSig));
      return pBuf;
    
    default:
    {
 
      int i, j=-1;
      icUInt8Number c;
      bool bNeedHexVal = false;
 
      pBuf[0] = '\'';
      for (i=1; i<5; i++) {
        c=(icUInt8Number)(sig>>24);
        if (!isprint(c)) {
          c = '?';
          bNeedHexVal = true;
        }
        pBuf[i]=c;
        sig <<=8;
      }
 
      if (bGetHexVal)
        sprintf(pBuf+5, "' = %08X", nSig);
      else if (bNeedHexVal) {
        sprintf(pBuf, "%08Xh", nSig);
      }
      else
        sprintf(pBuf+5, "'");
    }
  }
 
  return pBuf;
}

References icGetColorSpaceType, icNumColorSpaceChannels, icSigBiSpectralReflectanceData, icSigNChannelData, icSigRadiantSpectralData, icSigReflectanceSpectralData, icSigSparseMatrixReflectanceData, icSigTransmisionSpectralData, and sig.

Referenced by CIccCfgColorData::toLegacy().

Here is the caller graph for this function:

icGetColorSigStr()

const icChar * icGetColorSigStr	(	icChar *	pBuf,
		icUInt32Number	nSig )

Definition at line 1139 of file IccUtil.cpp.

{
  icUInt32Number sig=nSig;
 
  switch (icGetColorSpaceType(nSig)) {
    case icSigNChannelData:
    case icSigReflectanceSpectralData:
    case icSigTransmisionSpectralData:
    case icSigRadiantSpectralData:
    case icSigBiSpectralReflectanceData:
    case icSigSparseMatrixReflectanceData:
 
      pBuf[0] = (icUInt8Number)(sig>>24);
      sig<<=8;
      pBuf[1] = (icUInt8Number)(sig>>24);
      sprintf(pBuf+2, "%04X", icNumColorSpaceChannels(nSig));
      return pBuf;
 
    default:
      {
 
        int i, j=-1;
        icUInt8Number c;
        bool bGetHexVal = false;
 
        for (i=0; i<4; i++) {
          c=(icUInt8Number)(sig>>24);
          if (!c) {
            j=i;
          }
          else if (j!=-1) {
            bGetHexVal = true;
          }
          else if (!isprint(c) ||c==':') {
            c='?';
            bGetHexVal = true;
          }
          pBuf[i]=c;
          sig <<=8;
        }
 
        if (bGetHexVal)
          sprintf(pBuf, "%08Xh", nSig);
        else
          pBuf[4] = '\0';
      }
  }
 
  return pBuf;
}

References icGetColorSpaceType, icNumColorSpaceChannels, icSigBiSpectralReflectanceData, icSigNChannelData, icSigRadiantSpectralData, icSigReflectanceSpectralData, icSigSparseMatrixReflectanceData, icSigTransmisionSpectralData, and sig.

Referenced by CIccTagSpectralDataInfo::Describe(), CIccCfgColorData::toJson(), CIccCfgDataApply::toJson(), CIccTagXmlSpectralDataInfo::ToXml(), and CIccProfileXml::ToXmlWithBlanks().

Here is the caller graph for this function:

icGetFirstSigPathSig()

icSignature icGetFirstSigPathSig

(

std::string

sigPath

)

Definition at line 1201 of file IccUtil.cpp.

{
  icSignature rv = 0;
  const char *ptr = sigPath.c_str();
  while(*ptr==':') {
    std::string sigStr;
    ptr++;
    while(*ptr && *ptr!=':') {
      sigStr += *ptr;
      ptr++;
    }
    rv = icGetSigVal(sigStr.c_str());
    //Skip embedded tag path entry
    if (rv != icSigEmbeddedV5ProfileTag)
      break;
  }
  return rv;
}

References icGetSigVal(), and icSigEmbeddedV5ProfileTag.

Referenced by CIccCLUT::Validate(), CIccMatrix::Validate(), CIccMBB::Validate(), CIccTagArray::Validate(), CIccTagColorantTable::Validate(), CIccTagCurve::Validate(), CIccTagFloatNum< T, Tsig >::Validate(), CIccTagLut16::Validate(), CIccTagLut8::Validate(), CIccTagLutAtoB::Validate(), CIccTagLutBtoA::Validate(), CIccTagMultiProcessElement::Validate(), CIccTagNum< T, Tsig >::Validate(), CIccTagParametricCurve::Validate(), CIccTagSignature::Validate(), CIccTagSparseMatrixArray::Validate(), CIccTagSpectralDataInfo::Validate(), and CIccTagText::Validate().

Here is the call graph for this function:

Here is the caller graph for this function:

icGetLastSigPathSig()

icSignature icGetLastSigPathSig

(

std::string

sigPath

)

Definition at line 1220 of file IccUtil.cpp.

{
  size_t n = sigPath.length();
  if (!n)
    return icGetSigVal(sigPath.c_str());
 
  const char *sig = sigPath.c_str();
 
  for (n = n - 1; n > 0; n--) {
    if (sig[n] == ':') {
      break;
    }
  }
  if (/* n >= 0 && */ sig[n] == ':')
    n++;
  return icGetSigVal(sig+n);
}

References icGetSigVal(), and sig.

Here is the call graph for this function:

icGetMaterialColorSpaceSamples()

icUInt32Number icGetMaterialColorSpaceSamples

(

icMaterialColorSignature

sig

)

Definition at line 1391 of file IccUtil.cpp.

{
  if (icGetColorSpaceType((icColorSpaceSignature)sig)!=icSigSrcMCSChannelData)
    return 0;
 
  return icNumColorSpaceChannels(sig);
}

References icGetColorSpaceType, icNumColorSpaceChannels, icSigSrcMCSChannelData, and sig.

Referenced by CIccTagArray::Validate(), CIccTagFloatNum< T, Tsig >::Validate(), CIccTagMultiProcessElement::Validate(), and CIccTagNum< T, Tsig >::Validate().

Here is the caller graph for this function:

icGetSecondSigPathSig()

icSignature icGetSecondSigPathSig

(

std::string

sigPath

)

Definition at line 1238 of file IccUtil.cpp.

{
  icSignature rv = 0;
  const char *ptr = sigPath.c_str();
  if(*ptr==':') {
    std::string sigStr;
    ptr++;
    ptr = strchr(ptr+1, ':');
    if (ptr) {
      ptr++;
      while(*ptr && *ptr!=':') {
        sigStr += *ptr;
        ptr++;
      }
      rv = icGetSigVal(sigStr.c_str());
    }
  }
  return rv;
}

References icGetSigVal().

Referenced by CIccTagSparseMatrixArray::Validate().

Here is the call graph for this function:

Here is the caller graph for this function:

icGetSig()

const icChar * icGetSig	(	icChar *	pBuf,
		icUInt32Number	sig,
		bool	bGetHexVal = true )

Definition at line 1028 of file IccUtil.cpp.

{
  int i;
  icUInt32Number sig=nSig;
  icUInt8Number c;
 
  if (!nSig) {
    strcpy(pBuf, "NULL");
    return pBuf;
  }
 
  pBuf[0] = '\'';
  for (i=1; i<5; i++) {
    c=(icUInt8Number)(sig>>24);
    if (!isprint(c))
      c='?';
    pBuf[i]=c;
    sig <<=8;
  }
 
  if (bGetHexVal)
    sprintf(pBuf+5, "' = %08X", nSig);
  else
    sprintf(pBuf+5, "'");
 
  return pBuf;
}

References sig.

Referenced by CIccMpeAcs::Describe(), CIccMpeUnknown::Describe(), CIccTagEmbeddedProfile::Describe(), CIccTagProfileSeqDesc::Describe(), SIccCalcOp::Describe(), DumpTag(), CIccBasicMpeFactory::GetElementSigName(), CIccInfo::GetUnknownName(), main(), MyChild::MyChild(), and CIccMpeUnknown::Validate().

Here is the caller graph for this function:

icGetSigPath()

std::string icGetSigPath

(

icUInt32Number

sig

)

Definition at line 1191 of file IccUtil.cpp.

{
  char buf[20];
  std::string rv = ":";
 
  rv += icGetSigStr(buf, nSig);
 
  return rv;
}

References icGetSigStr().

Referenced by CIccArrayColorantInfo::Validate(), CIccArrayUnknown::Validate(), CIccMpeCalculator::Validate(), CIccMpeCLUT::Validate(), CIccMpeCurveSet::Validate(), CIccMpeExtCLUT::Validate(), CIccMpeInvEmissionMatrix::Validate(), CIccMpeMatrix::Validate(), CIccMpeSpectralCLUT::Validate(), CIccMpeSpectralMatrix::Validate(), CIccMpeSpectralObserver::Validate(), CIccMpeTintArray::Validate(), CIccMpeToneMap::Validate(), CIccMultiProcessElement::Validate(), CIccSegmentedCurve::Validate(), CIccStructUnknown::Validate(), CIccTagArray::Validate(), CIccTagColorantOrder::Validate(), CIccTagLut16::Validate(), CIccTagLut8::Validate(), CIccTagLutAtoB::Validate(), CIccTagLutBtoA::Validate(), CIccTagMultiProcessElement::Validate(), CIccTagProfileSeqDesc::Validate(), CIccTagProfileSequenceId::Validate(), and CIccTagStruct::Validate().

Here is the call graph for this function:

Here is the caller graph for this function:

icGetSigStr()

const icChar * icGetSigStr	(	icChar *	pBuf,
		icUInt32Number	nSig )

Definition at line 1056 of file IccUtil.cpp.

{
  int i, j=-1;
  icUInt32Number sig=nSig;
  icUInt8Number c;
  bool bGetHexVal = false;
 
  for (i=0; i<4; i++) {
    c=(icUInt8Number)(sig>>24);
    if (!c) {
      j=i;
    }
    else if (j!=-1) {
      bGetHexVal = true;
    }
    else if (!isprint(c) ||c==':') {
      c='?';
      bGetHexVal = true;
    }
    pBuf[i]=c;
    sig <<=8;
  }
 
  if (bGetHexVal)
    sprintf(pBuf, "%08Xh", nSig);
  else
    pBuf[4] = '\0';
 
  return pBuf;
}

References sig.

Referenced by SIccCalcOp::Describe(), CIccBasicArrayFactory::GetArraySigName(), CIccBasicStructFactory::GetStructSigName(), icGetSigPath(), icProfDescToXml(), jsonFromEnvMap(), CIccMpeXmlBAcs::ToXml(), CIccMpeXmlEAcs::ToXml(), CIccMpeXmlTintArray::ToXml(), CIccMpeXmlUnknown::ToXml(), CIccTagXmlArray::ToXml(), CIccTagXmlDict::ToXml(), CIccTagXmlMultiLocalizedUnicode::ToXml(), CIccTagXmlProfileSequenceId::ToXml(), CIccTagXmlSignature::ToXml(), CIccTagXmlStruct::ToXml(), CIccTagXmlTextDescription::ToXml(), and CIccProfileXml::ToXmlWithBlanks().

Here is the caller graph for this function:

icGetSigVal()

icUInt32Number icGetSigVal

(

const icChar *

pBuf

)

Definition at line 1258 of file IccUtil.cpp.

{
  icUInt32Number v;
 
  switch(strlen(pBuf)) {
    case 0:
      return 0;
 
    case 1:
      return (icUInt32Number)((((unsigned long)pBuf[0])<<24) +
                              0x202020);
 
    case 2:
      return (icUInt32Number)((((unsigned long)pBuf[0])<<24) +
                              (((unsigned long)pBuf[1])<<16) +
                              0x2020);
 
    case 3:
      return (icUInt32Number)((((unsigned long)pBuf[0])<<24) +
                              (((unsigned long)pBuf[1])<<16) +
                              (((unsigned long)pBuf[2])<<8) +
                              0x20);
 
    case 4:
    default:
      return (icUInt32Number)((((unsigned long)pBuf[0])<<24) +
                              (((unsigned long)pBuf[1])<<16) +
                              (((unsigned long)pBuf[2])<<8) +
                              (((unsigned long)pBuf[3])));
 
    case 6:  //Channel based color signatures
      sscanf(pBuf+2, "%x", &v);
 
      return (icUInt32Number)((((unsigned long)pBuf[0])<<24) +
                              (((unsigned long)pBuf[1])<<16) +
                              v);
 
    case 8:
    case 9:
      sscanf(pBuf, "%x", &v);
      return v;
  }
}

Referenced by CIccCfgProfileSequence::fromArgs(), CIccCfgColorData::fromLegacy(), CIccInfo::GetSigPathName(), icGetFirstSigPathSig(), icGetLastSigPathSig(), icGetSecondSigPathSig(), icXmlGetChildSigVal(), icXmlStrToSig(), jsonToColorSpace(), jsonToValue(), main(), main(), CIccProfileXml::ParseTag(), CIccTagXmlStruct::ParseTag(), CIccMpeXmlTintArray::ParseXml(), CIccTagXmlArray::ParseXml(), CIccTagXmlDict::ParseXml(), CIccTagXmlMultiLocalizedUnicode::ParseXml(), CIccTagXmlProfileSequenceId::ParseXml(), CIccTagXmlSignature::ParseXml(), CIccTagXmlSpectralDataInfo::ParseXml(), CIccTagXmlStruct::ParseXml(), and CIccTagXmlUnknown::ParseXml().

Here is the caller graph for this function:

icGetSpaceSamples()

icUInt32Number icGetSpaceSamples

(

icColorSpaceSignature

sig

)

Definition at line 1303 of file IccUtil.cpp.

{
  switch(sig) {
  case icSigGrayData:
  case icSigGamutData:
    return 1;
 
  case icSig2colorData:
    return 2;
 
  case icSigXYZData:
  case icSigLabData:
  case icSigLuvData:
  case icSigYCbCrData:
  case icSigYxyData:
  case icSigRgbData:
  case icSigHsvData:
  case icSigHlsData:
  case icSigCmyData:
  case icSig3colorData:
  case icSigDevLabData:
  case icSigDevXYZData:
    return 3;
 
  case icSigCmykData:
  case icSig4colorData:
    return 4;
 
  default:
    switch (icGetColorSpaceType(sig)) {
      case icSigNChannelData:
      case icSigReflectanceSpectralData:
      case icSigTransmisionSpectralData:
      case icSigRadiantSpectralData:
      case icSigBiSpectralReflectanceData:
      case icSigSparseMatrixReflectanceData:
      case icSigSrcMCSChannelData:
        return icNumColorSpaceChannels(sig);
 
      default:
      {
        icChar szSig[5] = {0};
        szSig[0] = (icChar)(sig>>24);
        szSig[1] = (icChar)(sig>>16);
        szSig[2] = (icChar)(sig>>8);
        szSig[3] = (icChar)(sig);
        szSig[4] = '\0';
 
        if (!strcmp(szSig+1, "CLR")) {
          int d0 = icHexDigit(szSig[0]);
          if (d0>=0)
            return d0;
        }
        else if (!strncmp(szSig, "MCH", 3)) {  //Litte CMS multi-channel notation (not part of ICC specification)
          int d0 = icHexDigit(szSig[3]);
          if (d0>=0)
            return d0;
        }
      }
      return 0;
    }
  }
}

References icGetColorSpaceType, icHexDigit(), icNumColorSpaceChannels, icSig2colorData, icSig3colorData, icSig4colorData, icSigBiSpectralReflectanceData, icSigCmyData, icSigCmykData, icSigDevLabData, icSigDevXYZData, icSigGamutData, icSigGrayData, icSigHlsData, icSigHsvData, icSigLabData, icSigLuvData, icSigNChannelData, icSigRadiantSpectralData, icSigReflectanceSpectralData, icSigRgbData, icSigSparseMatrixReflectanceData, icSigSrcMCSChannelData, icSigTransmisionSpectralData, icSigXYZData, icSigYCbCrData, icSigYxyData, and sig.

Referenced by CIccCfgColorData::addFields(), CCubeWriter::begin(), CDevLinkWriter::begin(), CIccApplyBPC::calcSrcBlackPoint(), CIccEvalCompare::EvaluateProfile(), CIccCfgColorData::fromLegacy(), CIccInfo::GetColorSpaceSigName(), icGetSpectralSpaceSamples(), IsValidBitmapType(), IsValidColorType(), main(), main(), main(), CIccArrayNamedColor::SetColorSpaces(), CIccCfgColorData::spaceName(), CIccMBB::Validate(), CIccTagColorantOrder::Validate(), CIccTagColorantTable::Validate(), CIccTagLut16::Validate(), CIccTagLut8::Validate(), CIccTagLutAtoB::Validate(), CIccTagLutBtoA::Validate(), CIccTagMultiProcessElement::Validate(), CIccTagNamedColor2::Validate(), CIccTagResponseCurveSet16::Validate(), and CIccTagSparseMatrixArray::Validate().

Here is the call graph for this function:

Here is the caller graph for this function:

icGetSpectralSpaceSamples()

icUInt32Number icGetSpectralSpaceSamples

(

const icHeader *

pHdr

)

Definition at line 1367 of file IccUtil.cpp.

{
  if (pHdr->spectralPCS)
    return icGetSpaceSamples((icColorSpaceSignature)pHdr->spectralPCS);
  else
    return icGetSpaceSamples(pHdr->pcs);
}

References icGetSpaceSamples(), icHeader::pcs, and icHeader::spectralPCS.

Referenced by CIccTagMultiProcessElement::Validate().

Here is the call graph for this function:

Here is the caller graph for this function:

icGetStorageTypeBytes()

icUInt8Number icGetStorageTypeBytes

(

icUInt16Number

nStorageType

)

Definition at line 1375 of file IccUtil.cpp.

{
  switch (nStorageType) {
  case icValueTypeUInt8:
    return 1;
  case icValueTypeUInt16:
  case icValueTypeFloat16:
    return 2;
  case icValueTypeFloat32:
    return 4;
  default:
    return 0;
  }
}

References icValueTypeFloat16, icValueTypeFloat32, icValueTypeUInt16, and icValueTypeUInt8.

Referenced by CIccMpeExtCLUT::Read(), and CIccMpeSpectralCLUT::Read().

Here is the caller graph for this function:

icICubeth()

icFloatNumber icICubeth

(

icFloatNumber

v

)

Definition at line 815 of file IccUtil.cpp.

{
  if (v > 0.20689303448275862068965517241379)
    return v*v*v;
  else 
#ifndef SAMPLEICC_NOCLIPLABTOXYZ
  if (v>16.0/116.0)
#endif
    return (icFloatNumber)((v - 16.0 / 116.0) / 7.787037037037037037037037037037);
#ifndef SAMPLEICC_NOCLIPLABTOXYZ
  else
    return 0.0;
#endif
}

Referenced by CIccOpDefFromLab::Exec(), and icLabtoXYZ().

Here is the caller graph for this function:

icIntMax()

icUInt32Number icIntMax	(	icUInt32Number	v1,
		icUInt32Number	v2 )

Definition at line 913 of file IccUtil.cpp.

{
  return( v1 > v2 ? v1 : v2 );
}

Referenced by CIccCalculatorFunc::CheckUnderflowOverflow(), main(), and main().

Here is the caller graph for this function:

icIntMin()

icUInt32Number icIntMin	(	icUInt32Number	v1,
		icUInt32Number	v2 )

Definition at line 908 of file IccUtil.cpp.

{
  return( v1 < v2 ? v1 : v2 );
}

Referenced by CIccCalculatorFunc::CheckUnderflowOverflow(), CIccCalculatorFunc::DescribeSequence(), CIccMpeXmlCalculator::ParseXml(), CIccCalculatorFunc::SequenceNeedTempReset(), and CIccToneMapFunc::SetFunction().

Here is the caller graph for this function:

icIsIllumD50()

bool icIsIllumD50

(

icXYZNumber

xyz

)

Definition at line 363 of file IccUtil.cpp.

{
  return icIsS15Fixed16NumberNear(xyz.X, 0.9642f) && 
         icIsS15Fixed16NumberNear(xyz.Y, 1.0000f) && 
         icIsS15Fixed16NumberNear(xyz.Z, 0.8249f);
}

References icIsS15Fixed16NumberNear(), icXYZNumber::X, icXYZNumber::Y, and icXYZNumber::Z.

Here is the call graph for this function:

icIsNear()

bool icIsNear	(	icFloatNumber	v1,
		icFloatNumber	v2,
		icFloatNumber	nearRange )

Name: icIsNear.

Purpose: Checks if two numbers are close to each other in value

Args: v1 - first value v2 - second value range -

Return: true if v1 is near v2 within range

Definition at line 142 of file IccUtil.cpp.

{
  return fabs(v1 - v2) <= nearRange;
}

Referenced by CIccFormulaCurveSegment::Begin(), CCubeWriter::begin(), CDevLinkWriter::begin(), CIccFormulaCurveSegment::Describe(), CubeFile::isCustomInputRange(), and CIccTagSpectralViewingConditions::setIlluminant().

Here is the caller graph for this function:

icIsSpaceCLR()

bool icIsSpaceCLR

(

icColorSpaceSignature

sig

)

Definition at line 262 of file IccUtil.cpp.

{
  icChar szSig[5] = {0};
  szSig[0] = (icChar)(sig>>24);
  szSig[1] = (icChar)(sig>>16);
  szSig[2] = (icChar)(sig>>8);
  szSig[3] = (icChar)(sig);
  szSig[4] = '\0';
 
  int d0 = icHexDigit(szSig[0]);
 
  if (szSig[0]=='n' && szSig[1]=='c')
    return true;
  else if (!strcmp(szSig+1, "CLR")) {
    icInt32Number d0 = icHexDigit(szSig[0]);
    if (d0>=1)
      return true;
  }
  else if (!strcmp(szSig+2, "CL")) {
    icInt32Number d0 = icHexDigit(szSig[0]);
    icInt32Number d1 = icHexDigit(szSig[1]);
    
    if (d0>=0 && d1>=0) {
      icInt32Number n = (d0<<4) + d1;
 
      if (n>0xf)
        return true;
    }
  }
 
  return false;
}

References icHexDigit(), and sig.

Referenced by CDevLinkWriter::begin().

Here is the call graph for this function:

Here is the caller graph for this function:

icLab2Lch()

void icLab2Lch	(	icFloatNumber *	Lch,
		icFloatNumber *	Lab = NULL )

Definition at line 881 of file IccUtil.cpp.

{
  if (!Lab) {
    Lab = Lch;
  }
  else
    Lch[0] = Lab[0];
 
  icFloatNumber c = (icFloatNumber)sqrt((double)Lab[1]*Lab[1] + (double)Lab[2]*Lab[2]);
  icFloatNumber h = (icFloatNumber)(atan2(Lab[2], Lab[1]) * 180.0 / PI);
  while (h<0.0)
    h+=360.0;
 
  Lch[1] = c;
  Lch[2] = h;
}

References PI.

Referenced by CIccPRMG::InGamut().

Here is the caller graph for this function:

icLabFromPcs()

void icLabFromPcs

(

icFloatNumber *

Lab

)

Floating point encoding of Lab in PCS is in range 0.0 to 1.0.

Here are some conversion routines to convert to regular Lab encoding

Definition at line 919 of file IccUtil.cpp.

{
  Lab[0] *= 100.0;
  Lab[1] = (icFloatNumber)(Lab[1]*255.0 - 128.0);
  Lab[2] = (icFloatNumber)(Lab[2]*255.0 - 128.0);
}

Referenced by CIccTagColorantTable::Describe(), CIccEvalCompare::EvaluateProfile(), CIccPRMG::EvaluateProfile(), CIccTagNamedColor2::FindCachedPCSColor(), CIccTagNamedColor2::InitFindCachedPCSColor(), main(), CIccApplyBPC::pcs2lab(), CIccTagXmlColorantTable::ToXml(), and CIccTagXmlNamedColor2::ToXml().

Here is the caller graph for this function:

icLabToPcs()

void icLabToPcs

(

icFloatNumber *

Lab

)

Definition at line 927 of file IccUtil.cpp.

{
  Lab[0] /= 100.0;
  Lab[1] = (icFloatNumber)((Lab[1] + 128.0) / 255.0);
  Lab[2] = (icFloatNumber)((Lab[2] + 128.0) / 255.0);
}

Referenced by CIccApplyBPC::lab2pcs(), main(), CIccTagXmlColorantTable::ParseXml(), and CIccTagXmlNamedColor2::ParseXml().

Here is the caller graph for this function:

icLabtoXYZ()

void icLabtoXYZ	(	icFloatNumber *	XYZ,
		const icFloatNumber *	Lab = NULL,
		const icFloatNumber *	WhiteXYZ = NULL )

Definition at line 830 of file IccUtil.cpp.

{
  if (!Lab)
    Lab = XYZ;
 
  if (!WhiteXYZ)
    WhiteXYZ = icD50XYZ;
 
  icFloatNumber fy = (icFloatNumber)((Lab[0] + 16.0) / 116.0);
 
  XYZ[0] = icICubeth((icFloatNumber)(Lab[1]/500.0 + fy)) * WhiteXYZ[0];
  XYZ[1] = icICubeth(fy) * WhiteXYZ[1];
  XYZ[2] = icICubeth((icFloatNumber)(fy - Lab[2]/200.0)) * WhiteXYZ[2];
 
}

References icD50XYZ, and icICubeth().

Referenced by CIccApplyBPC::calcDstBlackPoint(), CIccApplyBPC::calcSrcBlackPoint(), CIccApplyBPC::lab2pcs(), and main().

Here is the call graph for this function:

Here is the caller graph for this function:

icLch2Lab()

void icLch2Lab	(	icFloatNumber *	Lab,
		icFloatNumber *	Lch = NULL )

Definition at line 866 of file IccUtil.cpp.

{
  if (!Lch) {
    Lch = Lab;
  }
  else
    Lab[0] = Lch[0];
 
  icFloatNumber a = (icFloatNumber)(Lch[1] * cos(Lch[2] * PI / 180.0));
  icFloatNumber b = (icFloatNumber)(Lch[1] * sin(Lch[2] * PI / 180.0));
 
  Lab[1] = a;
  Lab[2] = b;
}

References PI.

icMatrixDump()

void icMatrixDump	(	std::string &	sDump,
		icS15Fixed16Number *	pMatrix )

Definition at line 988 of file IccUtil.cpp.

{
  icChar buf[128];
 
  sprintf(buf, "%8.4lf %8.4lf %8.4lf\n", icFtoD(pMatrix[0]), icFtoD(pMatrix[1]), icFtoD(pMatrix[2]));
  sDump += buf;
  sprintf(buf, "%8.4lf %8.4lf %8.4lf\n", icFtoD(pMatrix[3]), icFtoD(pMatrix[4]), icFtoD(pMatrix[5]));
  sDump += buf;
  sprintf(buf, "%8.4lf %8.4lf %8.4lf\n", icFtoD(pMatrix[6]), icFtoD(pMatrix[7]), icFtoD(pMatrix[8]));
  sDump += buf;
}

References icFtoD().

Referenced by CIccTagFixedNum< T, Tsig >::Describe().

Here is the call graph for this function:

Here is the caller graph for this function:

icMatrixInvert3x3()

bool icMatrixInvert3x3

(

icFloatNumber *

M

)

Name: icMatrixInvert3x3.

Purpose: Inversion of a 3x3 matrix using the Adjoint Cofactor and the determinant of the 3x3 matrix.

Note: Matrix index positions: 0 1 2 3 4 5 6 7 8

Args: M = matrix to invert.

Return: true = matrix is invertible and stored back into M, false = matrix is not invertible.

Definition at line 391 of file IccUtil.cpp.

{
  const icFloatNumber epsilon = 1e-8f;
 
  icFloatNumber m48 = M[4]*M[8];
  icFloatNumber m75 = M[7]*M[5];
  icFloatNumber m38 = M[3]*M[8];
  icFloatNumber m65 = M[6]*M[5];
  icFloatNumber m37 = M[3]*M[7];
  icFloatNumber m64 = M[6]*M[4];
 
  icFloatNumber det = M[0]*(m48 - m75) - 
    M[1]*(m38 - m65) + 
    M[2]*(m37 - m64);
 
  if (det>-epsilon && det<epsilon)
    return false;
 
  icFloatNumber Co[9] = {0};
 
  Co[0] = +(m48 - m75);
  Co[1] = -(m38 - m65);
  Co[2] = +(m37 - m64);
 
  Co[3] = -(M[1]*M[8] - M[7]*M[2]);
  Co[4] = +(M[0]*M[8] - M[6]*M[2]);
  Co[5] = -(M[0]*M[7] - M[6]*M[1]);
 
  Co[6] = +(M[1]*M[5] - M[4]*M[2]);
  Co[7] = -(M[0]*M[5] - M[3]*M[2]);
  Co[8] = +(M[0]*M[4] - M[3]*M[1]);
 
  M[0] = Co[0] / det;
  M[1] = Co[3] / det;
  M[2] = Co[6] / det;
 
  M[3] = Co[1] / det;
  M[4] = Co[4] / det;
  M[5] = Co[7] / det;
 
  M[6] = Co[2] / det;
  M[7] = Co[5] / det;
  M[8] = Co[8] / det;
 
  return true;
}

Referenced by CIccDefaultEncProfileConverter::ConvertFromParams(), CIccMatrixMath::Invert(), CIccSimpleMatrixInverter::Invert(), and CIccSimpleMatrixSolver::Solve().

Here is the caller graph for this function:

icMatrixMultiply3x3()

void icMatrixMultiply3x3	(	icFloatNumber *	result,
		const icFloatNumber *	l,
		const icFloatNumber *	r )

Name: icMatrixMultiply3x3.

Purpose: Multiply two 3x3 matricies resulting in a 3x3 matrix.

Note: Matrix index positions: 0 1 2 3 4 5 6 7 8

Args: result = matrix to recieve result. l = left matrix to multiply (matrix multiplication is order dependent) r = right matrix to multiply (matrix multiplicaiton is order dependent)

Definition at line 457 of file IccUtil.cpp.

{
  const unsigned int e11 = 0;
  const unsigned int e12 = 1;
  const unsigned int e13 = 2;
  const unsigned int e21 = 3;
  const unsigned int e22 = 4;
  const unsigned int e23 = 5;
  const unsigned int e31 = 6;
  const unsigned int e32 = 7;
  const unsigned int e33 = 8;
  result[e11] = l[e11] * r[e11] + l[e12] * r[e21] + l[e13] * r[e31];
  result[e12] = l[e11] * r[e12] + l[e12] * r[e22] + l[e13] * r[e32];
  result[e13] = l[e11] * r[e13] + l[e12] * r[e23] + l[e13] * r[e33];
  result[e21] = l[e21] * r[e11] + l[e22] * r[e21] + l[e23] * r[e31];
  result[e22] = l[e21] * r[e12] + l[e22] * r[e22] + l[e23] * r[e32];
  result[e23] = l[e21] * r[e13] + l[e22] * r[e23] + l[e23] * r[e33];
  result[e31] = l[e31] * r[e11] + l[e32] * r[e21] + l[e33] * r[e31];
  result[e32] = l[e31] * r[e12] + l[e32] * r[e22] + l[e33] * r[e32];
  result[e33] = l[e31] * r[e13] + l[e32] * r[e23] + l[e33] * r[e33];
}

icMax()

icFloatNumber icMax	(	icFloatNumber	v1,
		icFloatNumber	v2 )

Definition at line 903 of file IccUtil.cpp.

{
  return( v1 > v2 ? v1 : v2 );
}

Referenced by CIccFormulaCurveSegment::Apply(), CIccOpDefMaximum::Exec(), and CIccOpDefVectorMaximum::Exec().

Here is the caller graph for this function:

icMaxStatus()

icValidateStatus icMaxStatus	(	icValidateStatus	s1,
		icValidateStatus	s2 )

Name: icMaxStatus.

Purpose: return worst status

Args: s1, s2

Return:

Definition at line 244 of file IccUtil.cpp.

{
  if (s1>s2)
    return s1;
  return s2;
}

Referenced by CIccInfo::CheckData(), CIccInfo::CheckData(), CIccInfo::CheckData(), CIccInfo::CheckData(), main(), MyDialog::MyDialog(), CIccArrayColorantInfo::Validate(), CIccArrayNamedColor::Validate(), CIccArrayUnknown::Validate(), CIccCLUT::Validate(), CIccFormulaCurveSegment::Validate(), CIccMBB::Validate(), CIccMpeCalculator::Validate(), CIccMpeCAM::Validate(), CIccMpeCurveSet::Validate(), CIccMpeInvEmissionMatrix::Validate(), CIccMpeSpectralCLUT::Validate(), CIccMpeSpectralMatrix::Validate(), CIccMpeSpectralObserver::Validate(), CIccMpeToneMap::Validate(), CIccResponseCurveStruct::Validate(), CIccSampledCalculatorCurve::Validate(), CIccSampledCurveSegment::Validate(), CIccSegmentedCurve::Validate(), CIccSingleSampledCurve::Validate(), CIccStructBRDF::Validate(), CIccStructColorantInfo::Validate(), CIccStructNamedColor::Validate(), CIccStructUnknown::Validate(), CIccTagArray::Validate(), CIccTagChromaticity::Validate(), CIccTagCicp::Validate(), CIccTagColorantOrder::Validate(), CIccTagColorantTable::Validate(), CIccTagCurve::Validate(), CIccTagData::Validate(), CIccTagDateTime::Validate(), CIccTagDict::Validate(), CIccTagEmbeddedHeightImage::Validate(), CIccTagEmbeddedNormalImage::Validate(), CIccTagEmbeddedProfile::Validate(), CIccTagFloatNum< T, Tsig >::Validate(), CIccTagGamutBoundaryDesc::Validate(), CIccTagLut16::Validate(), CIccTagLut8::Validate(), CIccTagLutAtoB::Validate(), CIccTagLutBtoA::Validate(), CIccTagMeasurement::Validate(), CIccTagMultiLocalizedUnicode::Validate(), CIccTagMultiProcessElement::Validate(), CIccTagNamedColor2::Validate(), CIccTagNum< T, Tsig >::Validate(), CIccTagParametricCurve::Validate(), CIccTagProfileSeqDesc::Validate(), CIccTagProfileSequenceId::Validate(), CIccTagResponseCurveSet16::Validate(), CIccTagSignature::Validate(), CIccTagSparseMatrixArray::Validate(), CIccTagSpectralDataInfo::Validate(), CIccTagSpectralViewingConditions::Validate(), CIccTagStruct::Validate(), CIccTagText::Validate(), CIccTagTextDescription::Validate(), CIccTagUtf16Text::Validate(), CIccTagUtf8Text::Validate(), CIccTagViewingConditions::Validate(), CIccTagXYZ::Validate(), CIccTagZipUtf8Text::Validate(), CIccToneMapFunc::Validate(), and ValidateIccProfile().

icMemDump()

void icMemDump	(	std::string &	sDump,
		void *	pBuf,
		icUInt32Number	nNum )

Definition at line 951 of file IccUtil.cpp.

{
  icUInt8Number *pData = (icUInt8Number *)pBuf;
  icChar buf[80] = {0};
  icChar num[10] = {0};
 
  icInt32Number i, j;
  icUInt8Number c;
 
  icInt32Number lines = (nNum + DUMPBYTESPERLINE - 1)/DUMPBYTESPERLINE;
  sDump.reserve(sDump.size() + lines*79);
 
  for (i=0; i<(icInt32Number)nNum; i++, pData++) {
    j=i%DUMPBYTESPERLINE;
    if (!j) {
      if (i) {
        sDump += (const icChar*)buf;
      }
      memset(buf, ' ', 76);
      buf[76] = ' ';
      buf[77] = '\n';
      buf[78] = '\0';
      sprintf(num, "%08X:", i);
      strncpy(buf, num, 9);
    }
 
    sprintf(num, "%02X", *pData);
    strncpy(buf+10+j*3, num, 2);
 
    c=*pData;
    if (!isprint(c))
      c='.';
    buf[10+16*3 + 1 + j] = c;
  }
  sDump += buf;
}

References DUMPBYTESPERLINE.

Referenced by CIccMpeAcs::Describe(), CIccMpeUnknown::Describe(), CIccTagData::Describe(), CIccTagUnknown::Describe(), CIccTagZipUtf8Text::Describe(), and MyTagDialog::MyTagDialog().

Here is the caller graph for this function:

icMin()

icFloatNumber icMin	(	icFloatNumber	v1,
		icFloatNumber	v2 )

Definition at line 898 of file IccUtil.cpp.

{
  return( v1 < v2 ? v1 : v2 );
}

Referenced by CIccEvalCompare::EvaluateProfile(), CIccOpDefMinimum::Exec(), and CIccOpDefVectorMinimum::Exec().

Here is the caller graph for this function:

icNormXYZ()

void icNormXYZ	(	icFloatNumber *	XYZ,
		icFloatNumber *	WhiteXYZ = NULL )

icRealloc()

void * icRealloc	(	void *	ptr,
		size_t	size )

Name: icRealloc.

Purpose: realloc memory allocated by malloc or calloc freeing old memory on failure.

Args: ptr - memory block to realloc size - new size of memory block

Return: pointer to reallocated memory block or NULL on failure. Old memory is released on error.

Definition at line 111 of file IccUtil.cpp.

{
  void *nptr;
  
  if (ptr)
    nptr = realloc(ptr, size);
  else
    nptr = malloc(size);
 
  if (!nptr && ptr)
    free(ptr);
 
  return nptr;
}

Referenced by CIccTagZipUtf8Text::AllocBuffer(), CIccUTF16String::FromUtf8(), CIccTagText::GetBuffer(), CIccTagTextDescription::GetBuffer(), CIccTagUtf16Text::GetBuffer(), CIccTagUtf8Text::GetBuffer(), CIccTagTextDescription::GetUnicodeBuffer(), CIccUTF16String::operator=(), CIccUTF16String::operator=(), CIccTagDict::Read(), CIccTagText::Release(), CIccTagTextDescription::Release(), CIccTagUtf16Text::Release(), CIccTagUtf8Text::Release(), CIccTagTextDescription::ReleaseUnicode(), CIccTagSparseMatrixArray::Reset(), CIccUTF16String::Resize(), CIccMpeCalculator::SetElem(), CIccLocalizedUnicode::SetSize(), CIccTagArray::SetSize(), CIccTagChromaticity::SetSize(), CIccTagColorantOrder::SetSize(), CIccTagColorantTable::SetSize(), CIccTagCurve::SetSize(), CIccTagData::SetSize(), CIccTagEmbeddedHeightImage::SetSize(), CIccTagEmbeddedNormalImage::SetSize(), CIccTagFixedNum< T, Tsig >::SetSize(), CIccTagFloatNum< T, Tsig >::SetSize(), CIccTagNum< T, Tsig >::SetSize(), and CIccTagXYZ::SetSize().

Here is the caller graph for this function:

icRmsDif()

icFloatNumber icRmsDif	(	const icFloatNumber *	v1,
		const icFloatNumber *	v2,
		icUInt32Number	nSample )

Definition at line 532 of file IccUtil.cpp.

{
  icFloatNumber sum=0;
  icUInt32Number i;
  for (i=0; i<nSample; i++) {
    sum += icSq(v1[i] - v2[i]);
  }
  if (nSample)
    sum /= nSample;
 
  return (icFloatNumber)sqrt(sum);
}

References icSq().

Referenced by CIccArrayNamedColor::FindSpectralColor().

Here is the call graph for this function:

Here is the caller graph for this function:

icRoundOffset()

double icRoundOffset

(

double

v

)

Name: icRoundOffset.

Purpose: Adds offset to floating point value for purposes of rounding by casting to and integer based value

Args: v - value to offset

Return: v with offset added - suitable for casting to some form of integer

Definition at line 223 of file IccUtil.cpp.

{
  if (v < 0.0) 
    return v - 0.5;
  else
    return v + 0.5;
}

Referenced by icDtoF(), icDtoUCF(), icDtoUF(), icDtoUSF(), icFtoU16(), and icFtoU8().

Here is the caller graph for this function:

icSameSpectralRange()

bool icSameSpectralRange	(	const icSpectralRange &	rng1,
		const icSpectralRange &	rng2 )

Definition at line 1399 of file IccUtil.cpp.

{
  return (rng1.start == rng2.start &&
          rng1.end == rng2.end &&
          rng1.steps == rng2.steps);
}

References icSpectralRange::end, icSpectralRange::start, and icSpectralRange::steps.

icSwab16Array()

void icSwab16Array ( void * pVoid, int num )

inline

Definition at line 218 of file IccUtil.h.

{
  icUInt8Number *ptr = (icUInt8Number*)pVoid;
  icUInt8Number tmp;
 
  while (num>0) {
    tmp = ptr[0]; ptr[0] = ptr[1]; ptr[1] = tmp;
    ptr += 2;
    num--;
  }
}

Referenced by CIccIO::Read16().

Here is the caller graph for this function:

icSwab16Ptr()

void icSwab16Ptr ( void * pVoid )

inline

Definition at line 210 of file IccUtil.h.

{
  icUInt8Number *ptr = (icUInt8Number*)pVoid;
  icUInt8Number tmp;
 
  tmp = ptr[0]; ptr[0] = ptr[1]; ptr[1] = tmp;
}

icSwab32Array()

void icSwab32Array ( void * pVoid, int num )

inline

Definition at line 239 of file IccUtil.h.

{
  icUInt8Number *ptr = (icUInt8Number*)pVoid;
  icUInt8Number tmp;
 
  while (num>0) {
    tmp = ptr[0]; ptr[0] = ptr[3]; ptr[3] = tmp;
    tmp = ptr[1]; ptr[1] = ptr[2]; ptr[2] = tmp;
    ptr += 4;
    num--;
  }
 
}

Referenced by CIccIO::Read32().

Here is the caller graph for this function:

icSwab32Ptr()

void icSwab32Ptr ( void * pVoid )

inline

Definition at line 230 of file IccUtil.h.

{
  icUInt8Number *ptr = (icUInt8Number*)pVoid;
  icUInt8Number tmp;
 
  tmp = ptr[0]; ptr[0] = ptr[3]; ptr[3] = tmp;
  tmp = ptr[1]; ptr[1] = ptr[2]; ptr[2] = tmp;
}

icSwab64Array()

void icSwab64Array ( void * pVoid, int num )

inline

Definition at line 264 of file IccUtil.h.

{
  icUInt8Number *ptr = (icUInt8Number*)pVoid;
  icUInt8Number tmp;
 
  while (num>0) {
    tmp = ptr[0]; ptr[0] = ptr[7]; ptr[7] = tmp;
    tmp = ptr[1]; ptr[1] = ptr[6]; ptr[6] = tmp;
    tmp = ptr[2]; ptr[2] = ptr[5]; ptr[5] = tmp;
    tmp = ptr[3]; ptr[3] = ptr[4]; ptr[4] = tmp;
    ptr += 8;
    num--;
  }
 
}

Referenced by CIccIO::Read64().

Here is the caller graph for this function:

icSwab64Ptr()

void icSwab64Ptr ( void * pVoid )

inline

Definition at line 253 of file IccUtil.h.

{
  icUInt8Number *ptr = (icUInt8Number*)pVoid;
  icUInt8Number tmp;
 
  tmp = ptr[0]; ptr[0] = ptr[7]; ptr[7] = tmp;
  tmp = ptr[1]; ptr[1] = ptr[6]; ptr[6] = tmp;
  tmp = ptr[2]; ptr[2] = ptr[5]; ptr[5] = tmp;
  tmp = ptr[3]; ptr[3] = ptr[4]; ptr[4] = tmp;
}

icU16toF()

icFloatNumber icU16toF

(

icUInt16Number

num

)

Definition at line 759 of file IccUtil.cpp.

{
  icFloatNumber rv = (icFloatNumber)((icFloatNumber)num / 65535.0);
 
  return rv;
}

Referenced by CIccTagColorantTable::Describe(), CIccTagNum< T, Tsig >::GetValues(), CIccTagNum< T, Tsig >::Interpolate(), CIccTagXmlColorantTable::ToXml(), and CIccTagNum< T, Tsig >::ValuePos().

Here is the caller graph for this function:

icU8toAB()

icFloatNumber icU8toAB

(

icUInt8Number

num

)

Definition at line 777 of file IccUtil.cpp.

{
  return (icFloatNumber)num - 128.0f;
}

icU8toF()

icFloatNumber icU8toF

(

icUInt8Number

num

)

Definition at line 738 of file IccUtil.cpp.

{
  icFloatNumber rv = (icFloatNumber)((icFloatNumber)num / 255.0);
 
  return rv;
}

Referenced by CIccTagNum< T, Tsig >::GetValues(), CIccTagNum< T, Tsig >::Interpolate(), and CIccTagNum< T, Tsig >::ValuePos().

Here is the caller graph for this function:

icUCFtoD()

icFloatNumber icUCFtoD

(

icU8Fixed8Number

num

)

Definition at line 622 of file IccUtil.cpp.

{
  icFloatNumber rv = (icFloatNumber)((icFloatNumber)num / 256.0);
 
  return rv;
}

icUFtoD()

icFloatNumber icUFtoD

(

icU16Fixed16Number

num

)

Definition at line 580 of file IccUtil.cpp.

{
  icFloatNumber rv = (icFloatNumber)((double)num / 65536.0);
 
  return rv;
}

Referenced by CIccTagChromaticity::Describe(), CIccTagFixedNum< T, Tsig >::Describe(), CIccTagFixedNum< T, Tsig >::GetValues(), CIccTagFixedNum< T, Tsig >::Interpolate(), CIccTagXmlChromaticity::ToXml(), CIccTagXmlFixedNum< T, Tsig >::ToXml(), and CIccTagFixedNum< T, Tsig >::ValuePos().

Here is the caller graph for this function:

icUSFtoD()

icFloatNumber icUSFtoD

(

icU1Fixed15Number

num

)

Definition at line 601 of file IccUtil.cpp.

{
  icFloatNumber rv = (icFloatNumber)((icFloatNumber)num / 32768.0);
 
  return rv;
}

Referenced by CIccTagColorantTable::Describe().

Here is the caller graph for this function:

icValidOverlap()

bool icValidOverlap	(	const icPositionNumber &	pos1,
		const icPositionNumber &	pos2,
		bool	bAllowSame )

Name: icValidOverlap.

Purpose: Checks if pos overlap is acceptable

Args: pos1 - first positionNumber pos2 - second positionNumber bAllowSame - allow to positions to cover the same area

Return: true if v1 is near v2 within range

Definition at line 195 of file IccUtil.cpp.

{
  if ((icUInt64Number)pos1.offset + pos1.size <= (icUInt64Number)pos2.offset ||
      (icUInt64Number)pos1.offset >= (icUInt64Number)pos2.offset + pos2.size)
    return true;
 
  if (bAllowSame && pos1.offset == pos2.offset || pos1.size == pos2.size)
    return true;
 
  return false;
}

References icPositionNumber::offset, and icPositionNumber::size.

Referenced by CIccMpeToneMap::Read().

Here is the caller graph for this function:

icValidTagPos()

bool icValidTagPos	(	const icPositionNumber &	pos,
		icUInt32Number	nTagHeaderSize,
		icUInt32Number	nTagSize,
		bool	bAllowEmpty )

Name: icValidTagPos.

Purpose: Checks if pos is valid for data within a tag

Args: pos - first value nTagHeaderSize - size of tag header nTagSize - total size of tag data

Return: true pos is valid

Definition at line 163 of file IccUtil.cpp.

{
  if (bAllowEmpty && !pos.size || !pos.offset)
    return true;
 
  if (pos.offset < nTagHeaderSize)
    return false;
  if ((icUInt64Number)pos.offset + pos.size > (icUInt64Number)nTagSize)
    return false;
 
  if (!pos.size && !bAllowEmpty)
    return false;
 
  return true;
}

References icPositionNumber::offset, and icPositionNumber::size.

Referenced by CIccMpeToneMap::Read().

Here is the caller graph for this function:

icVectorApplyMatrix3x3()

void icVectorApplyMatrix3x3	(	icFloatNumber *	result,
		const icFloatNumber *	m,
		const icFloatNumber *	v )

Name: icVectorApplyMatrix3x3.

Purpose: Applies a 3x3 matrix to a 3 element column vector.

Note: Matrix index positions: 0 1 2 3 4 5 6 7 8

Note: result = m x v

Args: result = vector to receive result. m = matrix to multiply v = vector to apply matrix to

Definition at line 502 of file IccUtil.cpp.

{
  const unsigned int e11 = 0;
  const unsigned int e12 = 1;
  const unsigned int e13 = 2;
  const unsigned int e21 = 3;
  const unsigned int e22 = 4;
  const unsigned int e23 = 5;
  const unsigned int e31 = 6;
  const unsigned int e32 = 7;
  const unsigned int e33 = 8;
  result[0] = m[e11] * v[0] + m[e12] * v[1] + m[e13] * v[2];
  result[1] = m[e21] * v[0] + m[e22] * v[1] + m[e23] * v[2];
  result[2] = m[e31] * v[0] + m[e32] * v[1] + m[e33] * v[2];
}

Referenced by CIccSimpleMatrixSolver::Solve().

Here is the caller graph for this function:

icXyzFromPcs()

void icXyzFromPcs

(

icFloatNumber *

XYZ

)

Floating point encoding of XYZ in PCS is in range 0.0 to 1.0 (Note: X=1.0 is encoded as about 0.5)

Here are some conversion routines to convert to regular XYZ encoding

Definition at line 934 of file IccUtil.cpp.

{
  XYZ[0] = (icFloatNumber)(XYZ[0] * 65535.0 / 32768.0);
  XYZ[1] = (icFloatNumber)(XYZ[1] * 65535.0 / 32768.0);
  XYZ[2] = (icFloatNumber)(XYZ[2] * 65535.0 / 32768.0);
}

Referenced by CIccTagNamedColor2::FindCachedPCSColor(), CIccTagNamedColor2::InitFindCachedPCSColor(), main(), CIccApplyBPC::pcs2lab(), and CIccTagXmlNamedColor2::ToXml().

Here is the caller graph for this function:

icXYZtoLab()

void icXYZtoLab	(	icFloatNumber *	Lab,
		const icFloatNumber *	XYZ = NULL,
		const icFloatNumber *	WhiteXYZ = NULL )

Definition at line 846 of file IccUtil.cpp.

{
  icFloatNumber Xn, Yn, Zn;
  
  if (!XYZ)
    XYZ = Lab;
 
  if (!WhiteXYZ)
    WhiteXYZ = icD50XYZ;
 
  Xn = icCubeth(XYZ[0] / WhiteXYZ[0]);
  Yn = icCubeth(XYZ[1] / WhiteXYZ[1]);
  Zn = icCubeth(XYZ[2] / WhiteXYZ[2]);
 
  Lab[0] = (icFloatNumber)(116.0 * Yn - 16.0);
  Lab[1] = (icFloatNumber)(500.0 * (Xn - Yn));
  Lab[2] = (icFloatNumber)(200.0 * (Yn - Zn));
 
}

References icCubeth(), and icD50XYZ.

Referenced by CIccMpeSpectralObserver::Apply(), CIccMpeEmissionCLUT::Begin(), CIccMpeReflectanceCLUT::Begin(), CIccApplyBPC::calcDstBlackPoint(), CIccTagNamedColor2::FindCachedPCSColor(), CIccArrayNamedColor::FindPcsColor(), CIccTagNamedColor2::InitFindCachedPCSColor(), main(), and CIccApplyBPC::pcs2lab().

Here is the call graph for this function:

Here is the caller graph for this function:

icXyzToPcs()

void icXyzToPcs

(

icFloatNumber *

XYZ

)

Definition at line 941 of file IccUtil.cpp.

{
  XYZ[0] = (icFloatNumber)(XYZ[0] * 32768.0 / 65535.0);
  XYZ[1] = (icFloatNumber)(XYZ[1] * 32768.0 / 65535.0);
  XYZ[2] = (icFloatNumber)(XYZ[2] * 32768.0 / 65535.0);
}

Referenced by CIccApplyBPC::CalcFactors(), CIccApplyBPC::lab2pcs(), main(), and CIccTagXmlNamedColor2::ParseXml().

Here is the caller graph for this function:

Variable Documentation

icD50XYZ

icFloatNumber icD50XYZ[3]

extern

Definition at line 782 of file IccUtil.cpp.

{ 0.9642f, 1.0000f, 0.8249f };

icD50XYZxx

icFloatNumber icD50XYZxx[3]

extern

Definition at line 783 of file IccUtil.cpp.

{ 96.42f, 100.00f, 82.49f };

icInfo

CIccInfo icInfo

extern

icMsgValidateCriticalError

const char* icMsgValidateCriticalError

extern

Definition at line 92 of file IccUtil.cpp.

Referenced by CIccCalculatorFunc::Validate(), CIccCLUT::Validate(), CIccFormulaCurveSegment::Validate(), CIccMBB::Validate(), CIccMpeCalculator::Validate(), CIccMpeCAM::Validate(), CIccMpeCLUT::Validate(), CIccMpeCurveSet::Validate(), CIccMpeExtCLUT::Validate(), CIccMpeInvEmissionMatrix::Validate(), CIccMpeMatrix::Validate(), CIccMpeSpectralCLUT::Validate(), CIccMpeSpectralMatrix::Validate(), CIccMpeSpectralObserver::Validate(), CIccMpeTintArray::Validate(), CIccMpeToneMap::Validate(), CIccMpeUnknown::Validate(), CIccSampledCalculatorCurve::Validate(), CIccSampledCurveSegment::Validate(), CIccSegmentedCurve::Validate(), CIccSingleSampledCurve::Validate(), CIccTagArray::Validate(), CIccTagChromaticity::Validate(), CIccTagEmbeddedProfile::Validate(), CIccTagFloatNum< T, Tsig >::Validate(), CIccTagLut16::Validate(), CIccTagLut8::Validate(), CIccTagLutAtoB::Validate(), CIccTagLutBtoA::Validate(), CIccTagMultiProcessElement::Validate(), CIccTagNum< T, Tsig >::Validate(), CIccTagParametricCurve::Validate(), CIccTagSparseMatrixArray::Validate(), CIccTagSpectralDataInfo::Validate(), CIccTagSpectralViewingConditions::Validate(), CIccToneMapFunc::Validate(), ValidateIccProfile(), and ValidateIccProfile().

icMsgValidateInformation

const char* icMsgValidateInformation

extern

Definition at line 93 of file IccUtil.cpp.

Referenced by CIccMpeToneMap::Validate().

icMsgValidateNonCompliant

const char* icMsgValidateNonCompliant

extern

Definition at line 91 of file IccUtil.cpp.

Referenced by CIccInfo::CheckData(), CIccInfo::CheckData(), CIccInfo::CheckData(), main(), MyDialog::MyDialog(), CIccCLUT::Validate(), CIccMatrix::Validate(), CIccMultiProcessElement::Validate(), CIccResponseCurveStruct::Validate(), CIccTag::Validate(), CIccTagChromaticity::Validate(), CIccTagCicp::Validate(), CIccTagColorantOrder::Validate(), CIccTagColorantTable::Validate(), CIccTagData::Validate(), CIccTagEmbeddedHeightImage::Validate(), CIccTagEmbeddedNormalImage::Validate(), CIccTagLutAtoB::Validate(), CIccTagLutBtoA::Validate(), CIccTagMeasurement::Validate(), CIccTagNamedColor2::Validate(), CIccTagParametricCurve::Validate(), CIccTagProfileSeqDesc::Validate(), CIccTagSignature::Validate(), CIccTagSparseMatrixArray::Validate(), CIccTagSpectralViewingConditions::Validate(), CIccTagText::Validate(), CIccTagTextDescription::Validate(), and CIccTagZipUtf8Text::Validate().

icMsgValidateWarning

const char* icMsgValidateWarning

extern

Definition at line 90 of file IccUtil.cpp.

Referenced by CIccInfo::CheckData(), CIccInfo::CheckLuminance(), main(), MyDialog::MyDialog(), CIccCalculatorFunc::Validate(), CIccFormulaCurveSegment::Validate(), CIccMBB::Validate(), CIccSampledCalculatorCurve::Validate(), CIccSampledCurveSegment::Validate(), CIccSegmentedCurve::Validate(), CIccSingleSampledCurve::Validate(), CIccStructBRDF::Validate(), CIccStructColorantInfo::Validate(), CIccStructNamedColor::Validate(), CIccTagColorantOrder::Validate(), CIccTagColorantTable::Validate(), CIccTagCurve::Validate(), CIccTagData::Validate(), CIccTagDict::Validate(), CIccTagEmbeddedProfile::Validate(), CIccTagGamutBoundaryDesc::Validate(), CIccTagLut16::Validate(), CIccTagLut8::Validate(), CIccTagLutBtoA::Validate(), CIccTagMultiLocalizedUnicode::Validate(), CIccTagMultiProcessElement::Validate(), CIccTagNamedColor2::Validate(), CIccTagParametricCurve::Validate(), CIccTagResponseCurveSet16::Validate(), CIccTagSparseMatrixArray::Validate(), CIccTagStruct::Validate(), CIccTagText::Validate(), CIccTagUtf16Text::Validate(), CIccTagUtf8Text::Validate(), CIccTagXYZ::Validate(), CIccTagZipUtf8Text::Validate(), and CIccToneMapFunc::Validate().