IccProfile.cpp File Reference

File: IccProfile.cpp. More...

#include <ctime>
#include <cstring>
#include <cmath>
#include "IccProfile.h"
#include "IccTag.h"
#include "IccArrayBasic.h"
#include "IccIO.h"
#include "IccUtil.h"
#include "IccMatrixMath.h"
#include "IccMD5.h"

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Functions
void	CalcProfileID (CIccIO *pIO, icProfileID *pProfileID)
	Name: CalcProfileID.
bool	CalcProfileID (const icChar *szFilename, icProfileID *pProfileID)
	Name: CalcProfileID.
static bool	compare_float (double x, double y, double eps=0.0000001f)
static bool	compare_float (float x, float y, float eps=0.01f)
CIccProfile *	OpenIccProfile (const icChar *szFilename, bool bUseSubProfile)
	Name: OpenIccProfile.
CIccProfile *	OpenIccProfile (const icUInt8Number *pMem, icUInt32Number nSize, bool bUseSubProfile)
	Name: OpenIccProfile.
CIccProfile *	ReadIccProfile (const icChar *szFilename, bool bUseSubProfile)
	Name: ReadIccProfile.
CIccProfile *	ReadIccProfile (const icUInt8Number *pMem, icUInt32Number nSize, bool bUseSubProfile)
	Name: ReadIccProfile.
bool	SaveIccProfile (const icChar *szFilename, CIccProfile *pIcc, icProfileIDSaveMethod nWriteId)
	Name: SaveIccProfile.
bool	SaveIccProfile (FILE *f, CIccProfile *pIcc, icProfileIDSaveMethod nWriteId)
	Name: SaveIccProfile.
CIccProfile *	ValidateIccProfile (CIccIO *pIO, std::string &sReport, icValidateStatus &nStatus)
	Name: ValidateIccProfile.
CIccProfile *	ValidateIccProfile (const icChar *szFilename, std::string &sReport, icValidateStatus &nStatus)
	Name: ValidateIccProfile.

Detailed Description

File: IccProfile.cpp.

Contains: Implementation of the CIccProfile class.

Version: V1

Copyright: � see ICC Software License

Definition in file IccProfile.cpp.

Function Documentation

CalcProfileID() [1/2]

void CalcProfileID	(	CIccIO *	pIO,
		icProfileID *	pProfileID )

Name: CalcProfileID.

Purpose: Calculate the Profile ID using MD5 Fingerprinting method.

Args: pIO = The CIccIO object, pProfileID = array where the profileID will be stored

Definition at line 3724 of file IccProfile.cpp.

{
  icUInt32Number len, num, nBlock, pos;
  MD5_CTX context;
  icUInt8Number buffer[1024] = {0};
 
  //remember where we are
  pos = pIO->Tell();
 
  //Get length and set up to read entire file
  len = pIO->GetLength();
  pIO->Seek(0, icSeekSet);
 
  //read file updating checksum as we go
  icMD5Init(&context);
  nBlock = 0;
  while(len) {
    num = pIO->Read8(&buffer[0],1024);
    if (!nBlock) {  // Zero out 3 header contents in Profile ID calculation
      memset(buffer+44, 0, 4); //Profile flags
      memset(buffer+64, 0, 4);  //Rendering Intent
      memset(buffer+84, 0, 16); //Profile Id
    }
    icMD5Update(&context,buffer,num);
    nBlock++;
    len -=num;
  }
  icMD5Final(&pProfileID->ID8[0],&context);
 
  //go back where we were
  pIO->Seek(pos, icSeekSet);
}

References context, CIccIO::GetLength(), icMD5Final(), icMD5Init(), icMD5Update(), icSeekSet, icProfileID::ID8, CIccIO::Read8(), CIccIO::Seek(), and CIccIO::Tell().

Referenced by CalcProfileID().

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CalcProfileID() [2/2]

bool CalcProfileID	(	const icChar *	szFilename,
		icProfileID *	pProfileID )

Name: CalcProfileID.

Purpose: Calculate the Profile ID using MD5 Fingerprinting method.

Args: szFileName = name of the file whose profile ID has to be calculated, pProfileID = array where the profileID will be stored

Definition at line 3768 of file IccProfile.cpp.

{
  CIccFileIO FileIO;
 
  if (!FileIO.Open(szFilename, "rb")) {
    memset(pProfileID, 0, sizeof(icProfileID));
    return false;
  }
 
  CalcProfileID(&FileIO, pProfileID);
  return true;
}

References CalcProfileID(), and CIccFileIO::Open().

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compare_float() [1/2]

static bool compare_float ( double x, double y, double eps = 0.0000001f )

inlinestatic

Definition at line 1333 of file IccProfile.cpp.

                                                                            {
    return (fabs(x-y)<eps);
}

compare_float() [2/2]

static bool compare_float ( float x, float y, float eps = 0.01f )

inlinestatic

Definition at line 1329 of file IccProfile.cpp.

                                                                    {
    return (fabsf(x-y)<eps);
}

OpenIccProfile() [1/2]

CIccProfile * OpenIccProfile	(	const icChar *	szFilename,
		bool	bUseSubProfile )

Name: OpenIccProfile.

Purpose: Open an ICC profile file. This will only read the profile header and tag directory. Loading of actual tags will be deferred until the tags are actually referenced by FindTag().

Args: szFilename - zero terminated string with filename of ICC profile to read bUseSubProfile - will attempt to open a subprofile if present

Return: Pointer to icc profile object, or NULL on failure

Definition at line 3386 of file IccProfile.cpp.

{
  CIccFileIO *pFileIO = new CIccFileIO;
 
  if (!pFileIO->Open(szFilename, "rb")) {
    delete pFileIO;
    return NULL;
  }
 
  CIccProfile *pIcc = new CIccProfile;
 
  if (!pIcc->Attach(pFileIO, bUseSubProfile)) {
    delete pIcc;
    delete pFileIO;
    return NULL;
  }
 
  return pIcc;
}

References CIccFileIO::Open().

Referenced by CIccDefaultEncProfileCacheHandler::GetEncodingProfile(), GetProfileFromBuf(), IccProfileOpenHandle(), main(), main(), main(), main(), and MyFrame::OpenFile().

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OpenIccProfile() [2/2]

CIccProfile * OpenIccProfile	(	const icUInt8Number *	pMem,
		icUInt32Number	nSize,
		bool	bUseSubProfile )

Name: OpenIccProfile.

Purpose: Open an ICC profile file. This will only read the profile header and tag directory. Loading of actual tags will be deferred until the tags are actually referenced by FindTag().

Args: pMem = pointer to memory containing profile data nSize = size of memory related to profile

Return: Pointer to icc profile object, or NULL on failure

Definition at line 3460 of file IccProfile.cpp.

{
  CIccMemIO *pMemIO = new CIccMemIO;
 
  if (!pMemIO->Attach((icUInt8Number*)pMem, nSize)) {
    delete pMemIO;
    return NULL;
  }
 
  CIccProfile *pIcc = new CIccProfile;
 
  if (!pIcc->Attach(pMemIO, bUseSubProfile)) {
    delete pIcc;
    delete pMemIO;
    return NULL;
  }
 
  return pIcc;
}

References CIccMemIO::Attach().

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ReadIccProfile() [1/2]

CIccProfile * ReadIccProfile	(	const icChar *	szFilename,
		bool	bUseSubProfile )

Name: ReadIccProfile.

Purpose: Read an ICC profile file.

Args: szFilename - zero terminated string with filename of ICC profile to read bUseSubProfile - will attempt to open a subprofile if present

Return: Pointer to ICC profile object, or NULL on failure

Definition at line 3273 of file IccProfile.cpp.

{
  CIccFileIO *pFileIO = new CIccFileIO;
 
  if (!pFileIO->Open(szFilename, "rb")) {
    delete pFileIO;
    return NULL;
  }
 
  CIccProfile *pIcc = new CIccProfile;
 
  if (!pIcc->Read(pFileIO, bUseSubProfile)) {
    delete pIcc;
    delete pFileIO;
    return NULL;
  }
  delete pFileIO;
 
  return pIcc;
}

References CIccFileIO::Open().

Referenced by CIccEvalCompare::EvaluateProfile(), CIccPRMG::EvaluateProfile(), getIccProfLibProfileFromColorsyncProfile(), IccProfileReadHandle(), main(), and main().

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ReadIccProfile() [2/2]

CIccProfile * ReadIccProfile	(	const icUInt8Number *	pMem,
		icUInt32Number	nSize,
		bool	bUseSubProfile )

Name: ReadIccProfile.

Purpose: Read an ICC profile file.

Args: pMem = pointer to memory containing profile data nSize = size of memory related to profile bUseSubProfile - will attempt to open a subprofile if present

Return: Pointer to icc profile object, or NULL on failure

Definition at line 3348 of file IccProfile.cpp.

{
  CIccMemIO *pMemIO = new CIccMemIO();
 
  if (!pMemIO->Attach((icUInt8Number*)pMem, nSize)) {
    delete pMemIO;
    return NULL;
  }
 
  CIccProfile *pIcc = new CIccProfile;
 
  if (!pIcc->Read(pMemIO)) {
    delete pIcc;
    delete pMemIO;
    return NULL;
  }
  delete pMemIO;
 
  return pIcc;
}

References CIccMemIO::Attach().

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SaveIccProfile() [1/2]

bool SaveIccProfile	(	const icChar *	szFilename,
		CIccProfile *	pIcc,
		icProfileIDSaveMethod	nWriteId )

Name: SaveIccProfile.

Purpose: Save an ICC profile file.

Args: szFilename - zero terminated string with filename of ICC profile to create

Return: true = success, false = failure

Definition at line 3628 of file IccProfile.cpp.

{
  CIccFileIO FileIO;
 
  if (!pIcc)
    return false;
 
  if (!FileIO.Open(szFilename, "w+b")) {
    return false;
  }
 
  if (!pIcc->Write(&FileIO, nWriteId)) {
    return false;
  }
 
  return true;
}

References CIccFileIO::Open().

Referenced by CIccDefaultEncProfileConverter::ConvertFromParams(), CDevLinkWriter::finish(), and main().

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SaveIccProfile() [2/2]

bool SaveIccProfile	(	FILE *	f,
		CIccProfile *	pIcc,
		icProfileIDSaveMethod	nWriteId )

Name: SaveIccProfile.

Purpose: Save an ICC profile file.

Args: f - handle to file io stream (closed outside of this function)

Return: true = success, false = failure

Definition at line 3659 of file IccProfile.cpp.

{
  CIccFileIO FileIO;
 
  if (!pIcc)
    return false;
 
  if (!FileIO.Attach(f)) {
    return false;
  }
 
  if (!pIcc->Write(&FileIO, nWriteId)) {
    return false;
  }
 
  FileIO.Detach();
 
  return true;
}

References CIccFileIO::Attach(), and CIccFileIO::Detach().

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ValidateIccProfile() [1/2]

CIccProfile * ValidateIccProfile	(	CIccIO *	pIO,
		std::string &	sReport,
		icValidateStatus &	nStatus )

Name: ValidateIccProfile.

Purpose: Open an ICC profile file. This will only read the profile header and tag directory. Loading of actual tags will be deferred until the tags are actually referenced by FindTag().

Args: pIO - Handle to IO access object (Not ValidateIccProfile assumes ownership of this object) sReport - std::string to put report into nStatus - return status value

Return: Pointer to icc profile object, or NULL on failure

Definition at line 3497 of file IccProfile.cpp.

{
  if (!pIO) {
    sReport = icMsgValidateCriticalError;
    sReport += " - ";
    sReport += "- Invalid I/O Handle\n";
    delete pIO;
    return NULL;
  }
 
  CIccProfile *pIcc = new CIccProfile;
 
  if (!pIcc) {
    delete pIO;
    return NULL;
  }
 
  nStatus = pIcc->ReadValidate(pIO, sReport);
 
  if (nStatus>=icValidateCriticalError) {
    delete pIcc;
    delete pIO;
    return NULL;
  }
 
  delete pIO;
 
  nStatus = pIcc->Validate(sReport);
 
  return pIcc;
}

References icMsgValidateCriticalError, and icValidateCriticalError.

Referenced by main(), and MyDialog::MyDialog().

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ValidateIccProfile() [2/2]

CIccProfile * ValidateIccProfile	(	const icChar *	szFilename,
		std::string &	sReport,
		icValidateStatus &	nStatus )

Name: ValidateIccProfile.

Purpose: Open an ICC profile file. This will only read the profile header and tag directory. Loading of actual tags will be deferred until the tags are actually referenced by FindTag().

Args: szFilename - zero terminated string with filename of ICC profile to read sReport - std::string to put report into nStatus - return status value

Return: Pointer to icc profile object, or NULL on failure

Definition at line 3578 of file IccProfile.cpp.

{
  CIccFileIO *pFileIO = new CIccFileIO;
 
  if (!pFileIO->Open(szFilename, "rb")) {
    sReport = icMsgValidateCriticalError;
    sReport += " - ";
    sReport += szFilename;
    sReport += "- Invalid Filename\n";
    delete pFileIO;
    return NULL;
  }
 
  CIccProfile *pIcc = new CIccProfile;
 
  if (!pIcc) {
    delete pFileIO;
    return NULL;
  }
 
  nStatus = pIcc->ReadValidate(pFileIO, sReport);
 
  if (nStatus>=icValidateCriticalError) {
    delete pIcc;
    delete pFileIO;
    return NULL;
  }
 
  delete pFileIO;
 
  nStatus = icMaxStatus(nStatus, pIcc->Validate(sReport));
 
  return pIcc;
}

References icMaxStatus(), icMsgValidateCriticalError, icValidateCriticalError, and CIccFileIO::Open().

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