LCMS: rename folder

Change-Id: I5f240cb0779648dc5427fecb5561086e7c0fb16a
Reviewed-on: https://pdfium-review.googlesource.com/10650
Reviewed-by: dsinclair <dsinclair@chromium.org>
Commit-Queue: Nicolás Peña <npm@chromium.org>

1 files changed, 1895 insertions, 0 deletions

diff --git a/third_party/lcms/src/cmsio0.c b/third_party/lcms/src/cmsio0.c
new file mode 100644
index 0000000000..3ed730a92a
--- /dev/null
+++ b/third_party/lcms/src/cmsio0.c
@@ -0,0 +1,1895 @@
+//---------------------------------------------------------------------------------
+//
+//  Little Color Management System
+//  Copyright (c) 1998-2012 Marti Maria Saguer
+//
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the "Software"),
+// to deal in the Software without restriction, including without limitation
+// the rights to use, copy, modify, merge, publish, distribute, sublicense,
+// and/or sell copies of the Software, and to permit persons to whom the Software
+// is furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO
+// THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+//
+//---------------------------------------------------------------------------------
+//
+#include "lcms2_internal.h"
+
+// Generic I/O, tag dictionary management, profile struct
+
+// IOhandlers are abstractions used by littleCMS to read from whatever file, stream,
+// memory block or any storage. Each IOhandler provides implementations for read,
+// write, seek and tell functions. LittleCMS code deals with IO across those objects.
+// In this way, is easier to add support for new storage media.
+
+// NULL stream, for taking care of used space -------------------------------------
+
+// NULL IOhandler basically does nothing but keep track on how many bytes have been
+// written. This is handy when creating profiles, where the file size is needed in the
+// header. Then, whole profile is serialized across NULL IOhandler and a second pass
+// writes the bytes to the pertinent IOhandler.
+
+typedef struct {
+    cmsUInt32Number Pointer;         // Points to current location
+} FILENULL;
+
+static
+cmsUInt32Number NULLRead(cmsIOHANDLER* iohandler, void *Buffer, cmsUInt32Number size, cmsUInt32Number count)
+{
+    FILENULL* ResData = (FILENULL*) iohandler ->stream;
+
+    cmsUInt32Number len = size * count;
+    ResData -> Pointer += len;
+    return count;
+
+    cmsUNUSED_PARAMETER(Buffer);
+}
+
+static
+cmsBool  NULLSeek(cmsIOHANDLER* iohandler, cmsUInt32Number offset)
+{
+    FILENULL* ResData = (FILENULL*) iohandler ->stream;
+
+    ResData ->Pointer = offset;
+    return TRUE;
+}
+
+static
+cmsUInt32Number NULLTell(cmsIOHANDLER* iohandler)
+{
+    FILENULL* ResData = (FILENULL*) iohandler ->stream;
+    return ResData -> Pointer;
+}
+
+static
+cmsBool  NULLWrite(cmsIOHANDLER* iohandler, cmsUInt32Number size, const void *Ptr)
+{
+    FILENULL* ResData = (FILENULL*) iohandler ->stream;
+
+    ResData ->Pointer += size;
+    if (ResData ->Pointer > iohandler->UsedSpace)
+        iohandler->UsedSpace = ResData ->Pointer;
+
+    return TRUE;
+
+    cmsUNUSED_PARAMETER(Ptr);
+}
+
+static
+cmsBool  NULLClose(cmsIOHANDLER* iohandler)
+{
+    FILENULL* ResData = (FILENULL*) iohandler ->stream;
+
+    _cmsFree(iohandler ->ContextID, ResData);
+    _cmsFree(iohandler ->ContextID, iohandler);
+    return TRUE;
+}
+
+// The NULL IOhandler creator
+cmsIOHANDLER*  CMSEXPORT cmsOpenIOhandlerFromNULL(cmsContext ContextID)
+{
+    struct _cms_io_handler* iohandler = NULL;
+    FILENULL* fm = NULL;
+
+    iohandler = (struct _cms_io_handler*) _cmsMallocZero(ContextID, sizeof(struct _cms_io_handler));
+    if (iohandler == NULL) return NULL;
+
+    fm = (FILENULL*) _cmsMallocZero(ContextID, sizeof(FILENULL));
+    if (fm == NULL) goto Error;
+
+    fm ->Pointer = 0;
+
+    iohandler ->ContextID = ContextID;
+    iohandler ->stream  = (void*) fm;
+    iohandler ->UsedSpace = 0;
+    iohandler ->ReportedSize = 0;
+    iohandler ->PhysicalFile[0] = 0;
+
+    iohandler ->Read    = NULLRead;
+    iohandler ->Seek    = NULLSeek;
+    iohandler ->Close   = NULLClose;
+    iohandler ->Tell    = NULLTell;
+    iohandler ->Write   = NULLWrite;
+
+    return iohandler;
+
+Error:    
+    if (iohandler) _cmsFree(ContextID, iohandler);
+    return NULL;
+
+}
+
+
+// Memory-based stream --------------------------------------------------------------
+
+// Those functions implements an iohandler which takes a block of memory as storage medium.
+
+typedef struct {
+    cmsUInt8Number* Block;    // Points to allocated memory
+    cmsUInt32Number Size;     // Size of allocated memory
+    cmsUInt32Number Pointer;  // Points to current location
+    int FreeBlockOnClose;     // As title
+
+} FILEMEM;
+
+static
+cmsUInt32Number MemoryRead(struct _cms_io_handler* iohandler, void *Buffer, cmsUInt32Number size, cmsUInt32Number count)
+{
+    FILEMEM* ResData = (FILEMEM*) iohandler ->stream;
+    cmsUInt8Number* Ptr;
+    cmsUInt32Number len = size * count;
+
+    if (ResData -> Pointer + len > ResData -> Size){
+
+        len = (ResData -> Size - ResData -> Pointer);
+        cmsSignalError(iohandler ->ContextID, cmsERROR_READ, "Read from memory error. Got %d bytes, block should be of %d bytes", len, count * size);
+        return 0;
+    }
+
+    Ptr  = ResData -> Block;
+    Ptr += ResData -> Pointer;
+    memmove(Buffer, Ptr, len);
+    ResData -> Pointer += len;
+
+    return count;
+}
+
+// SEEK_CUR is assumed
+static
+cmsBool  MemorySeek(struct _cms_io_handler* iohandler, cmsUInt32Number offset)
+{
+    FILEMEM* ResData = (FILEMEM*) iohandler ->stream;
+
+    if (offset > ResData ->Size) {
+        cmsSignalError(iohandler ->ContextID, cmsERROR_SEEK,  "Too few data; probably corrupted profile");
+        return FALSE;
+    }
+
+    ResData ->Pointer = offset;
+    return TRUE;
+}
+
+// Tell for memory
+static
+cmsUInt32Number MemoryTell(struct _cms_io_handler* iohandler)
+{
+    FILEMEM* ResData = (FILEMEM*) iohandler ->stream;
+
+    if (ResData == NULL) return 0;
+    return ResData -> Pointer;
+}
+
+
+// Writes data to memory, also keeps used space for further reference.
+static
+cmsBool MemoryWrite(struct _cms_io_handler* iohandler, cmsUInt32Number size, const void *Ptr)
+{
+    FILEMEM* ResData = (FILEMEM*) iohandler ->stream;
+
+    if (ResData == NULL) return FALSE; // Housekeeping
+
+    // Check for available space. Clip.
+    if (ResData->Pointer + size > ResData->Size) {
+        size = ResData ->Size - ResData->Pointer;
+    }
+      
+    if (size == 0) return TRUE;     // Write zero bytes is ok, but does nothing
+
+    memmove(ResData ->Block + ResData ->Pointer, Ptr, size);
+    ResData ->Pointer += size;
+
+    if (ResData ->Pointer > iohandler->UsedSpace)
+        iohandler->UsedSpace = ResData ->Pointer;
+
+    return TRUE;
+}
+
+
+static
+cmsBool  MemoryClose(struct _cms_io_handler* iohandler)
+{
+    FILEMEM* ResData = (FILEMEM*) iohandler ->stream;
+
+    if (ResData ->FreeBlockOnClose) {
+
+        if (ResData ->Block) _cmsFree(iohandler ->ContextID, ResData ->Block);
+    }
+
+    _cmsFree(iohandler ->ContextID, ResData);
+    _cmsFree(iohandler ->ContextID, iohandler);
+
+    return TRUE;
+}
+
+// Create a iohandler for memory block. AccessMode=='r' assumes the iohandler is going to read, and makes
+// a copy of the memory block for letting user to free the memory after invoking open profile. In write
+// mode ("w"), Buffere points to the begin of memory block to be written.
+cmsIOHANDLER* CMSEXPORT cmsOpenIOhandlerFromMem(cmsContext ContextID, void *Buffer, cmsUInt32Number size, const char* AccessMode)
+{
+    cmsIOHANDLER* iohandler = NULL;
+    FILEMEM* fm = NULL;
+
+    _cmsAssert(AccessMode != NULL);
+
+    iohandler = (cmsIOHANDLER*) _cmsMallocZero(ContextID, sizeof(cmsIOHANDLER));
+    if (iohandler == NULL) return NULL;
+
+    switch (*AccessMode) {
+
+    case 'r':
+        fm = (FILEMEM*) _cmsMallocZero(ContextID, sizeof(FILEMEM));
+        if (fm == NULL) goto Error;
+
+        if (Buffer == NULL) {
+            cmsSignalError(ContextID, cmsERROR_READ, "Couldn't read profile from NULL pointer");
+            goto Error;
+        }
+
+        fm ->Block = (cmsUInt8Number*) _cmsMalloc(ContextID, size);
+        if (fm ->Block == NULL) {
+
+            _cmsFree(ContextID, fm);
+            _cmsFree(ContextID, iohandler);
+            cmsSignalError(ContextID, cmsERROR_READ, "Couldn't allocate %ld bytes for profile", size);
+            return NULL;
+        }
+
+
+        memmove(fm->Block, Buffer, size);
+        fm ->FreeBlockOnClose = TRUE;
+        fm ->Size    = size;
+        fm ->Pointer = 0;
+        iohandler -> ReportedSize = size;
+        break;
+
+    case 'w':
+        fm = (FILEMEM*) _cmsMallocZero(ContextID, sizeof(FILEMEM));
+        if (fm == NULL) goto Error;
+
+        fm ->Block = (cmsUInt8Number*) Buffer;
+        fm ->FreeBlockOnClose = FALSE;
+        fm ->Size    = size;
+        fm ->Pointer = 0;
+        iohandler -> ReportedSize = 0;
+        break;
+
+    default:
+        cmsSignalError(ContextID, cmsERROR_UNKNOWN_EXTENSION, "Unknown access mode '%c'", *AccessMode);
+        return NULL;
+    }
+
+    iohandler ->ContextID = ContextID;
+    iohandler ->stream  = (void*) fm;
+    iohandler ->UsedSpace = 0;
+    iohandler ->PhysicalFile[0] = 0;
+
+    iohandler ->Read    = MemoryRead;
+    iohandler ->Seek    = MemorySeek;
+    iohandler ->Close   = MemoryClose;
+    iohandler ->Tell    = MemoryTell;
+    iohandler ->Write   = MemoryWrite;
+
+    return iohandler;
+
+Error:
+    if (fm) _cmsFree(ContextID, fm);
+    if (iohandler) _cmsFree(ContextID, iohandler);
+    return NULL;
+}
+
+// File-based stream -------------------------------------------------------
+
+// Read count elements of size bytes each. Return number of elements read
+static
+cmsUInt32Number FileRead(cmsIOHANDLER* iohandler, void *Buffer, cmsUInt32Number size, cmsUInt32Number count)
+{
+    cmsUInt32Number nReaded = (cmsUInt32Number) fread(Buffer, size, count, (FILE*) iohandler->stream);
+
+    if (nReaded != count) {
+            cmsSignalError(iohandler ->ContextID, cmsERROR_FILE, "Read error. Got %d bytes, block should be of %d bytes", nReaded * size, count * size);
+            return 0;
+    }
+
+    return nReaded;
+}
+
+// Postion file pointer in the file
+static
+cmsBool  FileSeek(cmsIOHANDLER* iohandler, cmsUInt32Number offset)
+{
+    if (fseek((FILE*) iohandler ->stream, (long) offset, SEEK_SET) != 0) {
+
+       cmsSignalError(iohandler ->ContextID, cmsERROR_FILE, "Seek error; probably corrupted file");
+       return FALSE;
+    }
+
+    return TRUE;
+}
+
+// Returns file pointer position
+static
+cmsUInt32Number FileTell(cmsIOHANDLER* iohandler)
+{
+    return (cmsUInt32Number) ftell((FILE*)iohandler ->stream);
+}
+
+// Writes data to stream, also keeps used space for further reference. Returns TRUE on success, FALSE on error
+static
+cmsBool  FileWrite(cmsIOHANDLER* iohandler, cmsUInt32Number size, const void* Buffer)
+{
+       if (size == 0) return TRUE;  // We allow to write 0 bytes, but nothing is written
+
+       iohandler->UsedSpace += size;
+       return (fwrite(Buffer, size, 1, (FILE*) iohandler->stream) == 1);
+}
+
+// Closes the file
+static
+cmsBool  FileClose(cmsIOHANDLER* iohandler)
+{
+    if (fclose((FILE*) iohandler ->stream) != 0) return FALSE;
+    _cmsFree(iohandler ->ContextID, iohandler);
+    return TRUE;
+}
+
+// Create a iohandler for disk based files.
+cmsIOHANDLER* CMSEXPORT cmsOpenIOhandlerFromFile(cmsContext ContextID, const char* FileName, const char* AccessMode)
+{
+    cmsIOHANDLER* iohandler = NULL;
+    FILE* fm = NULL;
+
+    _cmsAssert(FileName != NULL);
+    _cmsAssert(AccessMode != NULL);
+
+    iohandler = (cmsIOHANDLER*) _cmsMallocZero(ContextID, sizeof(cmsIOHANDLER));
+    if (iohandler == NULL) return NULL;
+
+    switch (*AccessMode) {
+
+    case 'r':
+        fm = fopen(FileName, "rb");
+        if (fm == NULL) {
+            _cmsFree(ContextID, iohandler);
+             cmsSignalError(ContextID, cmsERROR_FILE, "File '%s' not found", FileName);
+            return NULL;
+        }
+        iohandler -> ReportedSize = (cmsUInt32Number) cmsfilelength(fm);
+        break;
+
+    case 'w':
+        fm = fopen(FileName, "wb");
+        if (fm == NULL) {
+            _cmsFree(ContextID, iohandler);
+             cmsSignalError(ContextID, cmsERROR_FILE, "Couldn't create '%s'", FileName);
+            return NULL;
+        }
+        iohandler -> ReportedSize = 0;
+        break;
+
+    default:
+        _cmsFree(ContextID, iohandler);
+         cmsSignalError(ContextID, cmsERROR_FILE, "Unknown access mode '%c'", *AccessMode);
+        return NULL;
+    }
+
+    iohandler ->ContextID = ContextID;
+    iohandler ->stream = (void*) fm;
+    iohandler ->UsedSpace = 0;
+
+    // Keep track of the original file    
+    strncpy(iohandler -> PhysicalFile, FileName, sizeof(iohandler -> PhysicalFile)-1);
+    iohandler -> PhysicalFile[sizeof(iohandler -> PhysicalFile)-1] = 0;
+
+    iohandler ->Read    = FileRead;
+    iohandler ->Seek    = FileSeek;
+    iohandler ->Close   = FileClose;
+    iohandler ->Tell    = FileTell;
+    iohandler ->Write   = FileWrite;
+
+    return iohandler;
+}
+
+// Create a iohandler for stream based files
+cmsIOHANDLER* CMSEXPORT cmsOpenIOhandlerFromStream(cmsContext ContextID, FILE* Stream)
+{
+    cmsIOHANDLER* iohandler = NULL;
+
+    iohandler = (cmsIOHANDLER*) _cmsMallocZero(ContextID, sizeof(cmsIOHANDLER));
+    if (iohandler == NULL) return NULL;
+
+    iohandler -> ContextID = ContextID;
+    iohandler -> stream = (void*) Stream;
+    iohandler -> UsedSpace = 0;
+    iohandler -> ReportedSize = (cmsUInt32Number) cmsfilelength(Stream);
+    iohandler -> PhysicalFile[0] = 0;
+
+    iohandler ->Read    = FileRead;
+    iohandler ->Seek    = FileSeek;
+    iohandler ->Close   = FileClose;
+    iohandler ->Tell    = FileTell;
+    iohandler ->Write   = FileWrite;
+
+    return iohandler;
+}
+
+
+
+// Close an open IO handler
+cmsBool CMSEXPORT cmsCloseIOhandler(cmsIOHANDLER* io)
+{
+    return io -> Close(io);
+}
+
+// -------------------------------------------------------------------------------------------------------
+
+#ifdef _WIN32_WCE
+time_t wceex_time(time_t *timer);
+struct tm * wceex_gmtime(const time_t *timer);
+
+#define time wceex_time
+#define gmtime wceex_gmtime
+#endif
+
+// Creates an empty structure holding all required parameters
+cmsHPROFILE CMSEXPORT cmsCreateProfilePlaceholder(cmsContext ContextID)
+{
+    time_t now = time(NULL);
+    _cmsICCPROFILE* Icc = (_cmsICCPROFILE*) _cmsMallocZero(ContextID, sizeof(_cmsICCPROFILE));
+    if (Icc == NULL) return NULL;
+
+    Icc ->ContextID = ContextID;
+
+    // Set it to empty
+    Icc -> TagCount   = 0;
+
+    // Set default version
+    Icc ->Version =  0x02100000;
+
+    // Set creation date/time
+    memmove(&Icc ->Created, gmtime(&now), sizeof(Icc ->Created));
+
+    // Create a mutex if the user provided proper plugin. NULL otherwise
+    Icc ->UsrMutex = _cmsCreateMutex(ContextID);
+
+    // Return the handle
+    return (cmsHPROFILE) Icc;
+}
+
+cmsContext CMSEXPORT cmsGetProfileContextID(cmsHPROFILE hProfile)
+{
+     _cmsICCPROFILE* Icc = (_cmsICCPROFILE*) hProfile;
+
+    if (Icc == NULL) return NULL;
+    return Icc -> ContextID;
+}
+
+
+// Return the number of tags
+cmsInt32Number CMSEXPORT cmsGetTagCount(cmsHPROFILE hProfile)
+{
+    _cmsICCPROFILE* Icc = (_cmsICCPROFILE*) hProfile;
+    if (Icc == NULL) return -1;
+
+    return  Icc->TagCount;
+}
+
+// Return the tag signature of a given tag number
+cmsTagSignature CMSEXPORT cmsGetTagSignature(cmsHPROFILE hProfile, cmsUInt32Number n)
+{
+    _cmsICCPROFILE* Icc = (_cmsICCPROFILE*) hProfile;
+
+    if (n > Icc->TagCount) return (cmsTagSignature) 0;  // Mark as not available
+    if (n >= MAX_TABLE_TAG) return (cmsTagSignature) 0; // As double check
+
+    return Icc ->TagNames[n];
+}
+
+
+static
+int SearchOneTag(_cmsICCPROFILE* Profile, cmsTagSignature sig)
+{
+    cmsUInt32Number i;
+
+    for (i=0; i < Profile -> TagCount; i++) {
+
+        if (sig == Profile -> TagNames[i])
+            return i;
+    }
+
+    return -1;
+}
+
+// Search for a specific tag in tag dictionary. Returns position or -1 if tag not found.
+// If followlinks is turned on, then the position of the linked tag is returned
+int _cmsSearchTag(_cmsICCPROFILE* Icc, cmsTagSignature sig, cmsBool lFollowLinks)
+{
+    int n;
+    cmsTagSignature LinkedSig;
+
+    do {
+
+        // Search for given tag in ICC profile directory
+        n = SearchOneTag(Icc, sig);
+        if (n < 0)
+            return -1;        // Not found
+
+        if (!lFollowLinks)
+            return n;         // Found, don't follow links
+
+        // Is this a linked tag?
+        LinkedSig = Icc ->TagLinked[n];
+
+        // Yes, follow link
+        if (LinkedSig != (cmsTagSignature) 0) {
+			// fix bug mantis id#0055942
+			// assume that TRCTag and ColorantTag can't be linked.
+			// Xiaochuan Liu 2014-04-23
+			if ((sig == cmsSigRedTRCTag || sig == cmsSigGreenTRCTag || sig == cmsSigBlueTRCTag) && 
+				(LinkedSig == cmsSigRedColorantTag || LinkedSig == cmsSigGreenColorantTag || LinkedSig == cmsSigBlueColorantTag))
+			{
+				return n;
+			}
+            sig = LinkedSig;
+        }
+
+    } while (LinkedSig != (cmsTagSignature) 0);
+
+    return n;
+}
+
+// Deletes a tag entry
+
+static
+void _cmsDeleteTagByPos(_cmsICCPROFILE* Icc, int i)
+{
+    _cmsAssert(Icc != NULL);
+    _cmsAssert(i >= 0);
+
+   
+    if (Icc -> TagPtrs[i] != NULL) {
+
+        // Free previous version
+        if (Icc ->TagSaveAsRaw[i]) {
+            _cmsFree(Icc ->ContextID, Icc ->TagPtrs[i]);
+        }
+        else {
+            cmsTagTypeHandler* TypeHandler = Icc ->TagTypeHandlers[i];
+
+            if (TypeHandler != NULL) {
+
+                cmsTagTypeHandler LocalTypeHandler = *TypeHandler;
+                LocalTypeHandler.ContextID = Icc ->ContextID;              // As an additional parameter
+                LocalTypeHandler.ICCVersion = Icc ->Version;
+                LocalTypeHandler.FreePtr(&LocalTypeHandler, Icc -> TagPtrs[i]);
+                Icc ->TagPtrs[i] = NULL;
+            }
+        }
+
+    } 
+}
+
+
+// Creates a new tag entry
+static
+cmsBool _cmsNewTag(_cmsICCPROFILE* Icc, cmsTagSignature sig, int* NewPos)
+{
+    int i;
+
+    // Search for the tag
+    i = _cmsSearchTag(Icc, sig, FALSE);
+    if (i >= 0) {
+
+        // Already exists? delete it
+        _cmsDeleteTagByPos(Icc, i);
+        *NewPos = i;
+    }
+    else  {
+
+        // No, make a new one
+
+        if (Icc -> TagCount >= MAX_TABLE_TAG) {
+            cmsSignalError(Icc ->ContextID, cmsERROR_RANGE, "Too many tags (%d)", MAX_TABLE_TAG);
+            return FALSE;
+        }
+
+        *NewPos = Icc ->TagCount;
+        Icc -> TagCount++;
+    }
+
+    return TRUE;
+}
+
+
+// Check existance
+cmsBool CMSEXPORT cmsIsTag(cmsHPROFILE hProfile, cmsTagSignature sig)
+{
+       _cmsICCPROFILE*  Icc = (_cmsICCPROFILE*) (void*) hProfile;
+       return _cmsSearchTag(Icc, sig, FALSE) >= 0;
+}
+
+
+// Read profile header and validate it
+cmsBool _cmsReadHeader(_cmsICCPROFILE* Icc)
+{
+    cmsTagEntry Tag;
+    cmsICCHeader Header;
+    cmsUInt32Number i, j;
+    cmsUInt32Number HeaderSize;
+    cmsIOHANDLER* io = Icc ->IOhandler;
+    cmsUInt32Number TagCount;
+
+
+    // Read the header
+    if (io -> Read(io, &Header, sizeof(cmsICCHeader), 1) != 1) {
+        return FALSE;
+    }
+
+    // Validate file as an ICC profile
+    if (_cmsAdjustEndianess32(Header.magic) != cmsMagicNumber) {
+        cmsSignalError(Icc ->ContextID, cmsERROR_BAD_SIGNATURE, "not an ICC profile, invalid signature");
+        return FALSE;
+    }
+
+    // Adjust endianess of the used parameters
+    Icc -> DeviceClass     = (cmsProfileClassSignature) _cmsAdjustEndianess32(Header.deviceClass);
+    Icc -> ColorSpace      = (cmsColorSpaceSignature)   _cmsAdjustEndianess32(Header.colorSpace);
+    Icc -> PCS             = (cmsColorSpaceSignature)   _cmsAdjustEndianess32(Header.pcs);
+   
+    Icc -> RenderingIntent = _cmsAdjustEndianess32(Header.renderingIntent);
+    Icc -> flags           = _cmsAdjustEndianess32(Header.flags);
+    Icc -> manufacturer    = _cmsAdjustEndianess32(Header.manufacturer);
+    Icc -> model           = _cmsAdjustEndianess32(Header.model);
+    Icc -> creator         = _cmsAdjustEndianess32(Header.creator);
+    
+    _cmsAdjustEndianess64(&Icc -> attributes, &Header.attributes);
+    Icc -> Version         = _cmsAdjustEndianess32(Header.version);
+
+    // Get size as reported in header
+    HeaderSize = _cmsAdjustEndianess32(Header.size);
+
+    // Make sure HeaderSize is lower than profile size
+    if (HeaderSize >= Icc ->IOhandler ->ReportedSize)
+            HeaderSize = Icc ->IOhandler ->ReportedSize;
+
+
+    // Get creation date/time
+    _cmsDecodeDateTimeNumber(&Header.date, &Icc ->Created);
+
+    // The profile ID are 32 raw bytes
+    memmove(Icc ->ProfileID.ID32, Header.profileID.ID32, 16);
+
+
+    // Read tag directory
+    if (!_cmsReadUInt32Number(io, &TagCount)) return FALSE;
+    if (TagCount > MAX_TABLE_TAG) {
+
+        cmsSignalError(Icc ->ContextID, cmsERROR_RANGE, "Too many tags (%d)", TagCount);
+        return FALSE;
+    }
+
+
+    // Read tag directory
+    Icc -> TagCount = 0;
+    for (i=0; i < TagCount; i++) {
+
+        if (!_cmsReadUInt32Number(io, (cmsUInt32Number *) &Tag.sig)) return FALSE;
+        if (!_cmsReadUInt32Number(io, &Tag.offset)) return FALSE;
+        if (!_cmsReadUInt32Number(io, &Tag.size)) return FALSE;
+
+        // Perform some sanity check. Offset + size should fall inside file.
+        if (Tag.offset + Tag.size > HeaderSize ||
+            Tag.offset + Tag.size < Tag.offset)
+                  continue;
+
+        Icc -> TagNames[Icc ->TagCount]   = Tag.sig;
+        Icc -> TagOffsets[Icc ->TagCount] = Tag.offset;
+        Icc -> TagSizes[Icc ->TagCount]   = Tag.size;
+
+       // Search for links
+        for (j=0; j < Icc ->TagCount; j++) {
+
+            if ((Icc ->TagOffsets[j] == Tag.offset) &&
+                (Icc ->TagSizes[j]   == Tag.size) &&
+                (Icc ->TagNames[j]   == Tag.sig)) {
+
+                Icc ->TagLinked[Icc ->TagCount] = Icc ->TagNames[j];
+            }
+
+        }
+
+        Icc ->TagCount++;
+    }
+
+    return TRUE;
+}
+
+// Saves profile header
+cmsBool _cmsWriteHeader(_cmsICCPROFILE* Icc, cmsUInt32Number UsedSpace)
+{
+    cmsICCHeader Header;
+    cmsUInt32Number i;
+    cmsTagEntry Tag;
+    cmsInt32Number Count = 0;
+
+    Header.size        = _cmsAdjustEndianess32(UsedSpace);
+    Header.cmmId       = _cmsAdjustEndianess32(lcmsSignature);
+    Header.version     = _cmsAdjustEndianess32(Icc ->Version);
+
+    Header.deviceClass = (cmsProfileClassSignature) _cmsAdjustEndianess32(Icc -> DeviceClass);
+    Header.colorSpace  = (cmsColorSpaceSignature) _cmsAdjustEndianess32(Icc -> ColorSpace);
+    Header.pcs         = (cmsColorSpaceSignature) _cmsAdjustEndianess32(Icc -> PCS);
+
+    //   NOTE: in v4 Timestamp must be in UTC rather than in local time
+    _cmsEncodeDateTimeNumber(&Header.date, &Icc ->Created);
+
+    Header.magic       = _cmsAdjustEndianess32(cmsMagicNumber);
+
+#ifdef CMS_IS_WINDOWS_
+    Header.platform    = (cmsPlatformSignature) _cmsAdjustEndianess32(cmsSigMicrosoft);
+#else
+    Header.platform    = (cmsPlatformSignature) _cmsAdjustEndianess32(cmsSigMacintosh);
+#endif
+
+    Header.flags        = _cmsAdjustEndianess32(Icc -> flags);
+    Header.manufacturer = _cmsAdjustEndianess32(Icc -> manufacturer);
+    Header.model        = _cmsAdjustEndianess32(Icc -> model);
+
+    _cmsAdjustEndianess64(&Header.attributes, &Icc -> attributes);
+
+    // Rendering intent in the header (for embedded profiles)
+    Header.renderingIntent = _cmsAdjustEndianess32(Icc -> RenderingIntent);
+
+    // Illuminant is always D50
+    Header.illuminant.X = _cmsAdjustEndianess32(_cmsDoubleTo15Fixed16(cmsD50_XYZ()->X));
+    Header.illuminant.Y = _cmsAdjustEndianess32(_cmsDoubleTo15Fixed16(cmsD50_XYZ()->Y));
+    Header.illuminant.Z = _cmsAdjustEndianess32(_cmsDoubleTo15Fixed16(cmsD50_XYZ()->Z));
+
+    // Created by LittleCMS (that's me!)
+    Header.creator      = _cmsAdjustEndianess32(lcmsSignature);
+
+    memset(&Header.reserved, 0, sizeof(Header.reserved));
+
+    // Set profile ID. Endianess is always big endian
+    memmove(&Header.profileID, &Icc ->ProfileID, 16);
+
+    // Dump the header
+    if (!Icc -> IOhandler->Write(Icc->IOhandler, sizeof(cmsICCHeader), &Header)) return FALSE;
+
+    // Saves Tag directory
+
+    // Get true count
+    for (i=0;  i < Icc -> TagCount; i++) {
+        if (Icc ->TagNames[i] != 0)
+            Count++;
+    }
+
+    // Store number of tags
+    if (!_cmsWriteUInt32Number(Icc ->IOhandler, Count)) return FALSE;
+
+    for (i=0; i < Icc -> TagCount; i++) {
+
+        if (Icc ->TagNames[i] == 0) continue;   // It is just a placeholder
+
+        Tag.sig    = (cmsTagSignature) _cmsAdjustEndianess32((cmsInt32Number) Icc -> TagNames[i]);
+        Tag.offset = _cmsAdjustEndianess32((cmsInt32Number) Icc -> TagOffsets[i]);
+        Tag.size   = _cmsAdjustEndianess32((cmsInt32Number) Icc -> TagSizes[i]);
+
+        if (!Icc ->IOhandler -> Write(Icc-> IOhandler, sizeof(cmsTagEntry), &Tag)) return FALSE;
+    }
+
+    return TRUE;
+}
+
+// ----------------------------------------------------------------------- Set/Get several struct members
+
+
+cmsUInt32Number CMSEXPORT cmsGetHeaderRenderingIntent(cmsHPROFILE hProfile)
+{
+    _cmsICCPROFILE*  Icc = (_cmsICCPROFILE*) hProfile;
+    return Icc -> RenderingIntent;
+}
+
+void CMSEXPORT cmsSetHeaderRenderingIntent(cmsHPROFILE hProfile, cmsUInt32Number RenderingIntent)
+{
+    _cmsICCPROFILE*  Icc = (_cmsICCPROFILE*) hProfile;
+    Icc -> RenderingIntent = RenderingIntent;
+}
+
+cmsUInt32Number CMSEXPORT cmsGetHeaderFlags(cmsHPROFILE hProfile)
+{
+    _cmsICCPROFILE*  Icc = (_cmsICCPROFILE*) hProfile;
+    return (cmsUInt32Number) Icc -> flags;
+}
+
+void CMSEXPORT cmsSetHeaderFlags(cmsHPROFILE hProfile, cmsUInt32Number Flags)
+{
+    _cmsICCPROFILE*  Icc = (_cmsICCPROFILE*) hProfile;
+    Icc -> flags = (cmsUInt32Number) Flags;
+}
+
+cmsUInt32Number CMSEXPORT cmsGetHeaderManufacturer(cmsHPROFILE hProfile)
+{
+    _cmsICCPROFILE*  Icc = (_cmsICCPROFILE*) hProfile;
+    return Icc ->manufacturer;
+}
+
+void CMSEXPORT cmsSetHeaderManufacturer(cmsHPROFILE hProfile, cmsUInt32Number manufacturer)
+{
+    _cmsICCPROFILE*  Icc = (_cmsICCPROFILE*) hProfile;
+    Icc -> manufacturer = manufacturer;
+}
+
+cmsUInt32Number CMSEXPORT cmsGetHeaderCreator(cmsHPROFILE hProfile)
+{
+    _cmsICCPROFILE*  Icc = (_cmsICCPROFILE*) hProfile;
+    return Icc ->creator;
+}
+
+cmsUInt32Number CMSEXPORT cmsGetHeaderModel(cmsHPROFILE hProfile)
+{
+    _cmsICCPROFILE*  Icc = (_cmsICCPROFILE*) hProfile;
+    return Icc ->model;
+}
+
+void CMSEXPORT cmsSetHeaderModel(cmsHPROFILE hProfile, cmsUInt32Number model)
+{
+    _cmsICCPROFILE*  Icc = (_cmsICCPROFILE*) hProfile;
+    Icc -> model = model;
+}
+
+void CMSEXPORT cmsGetHeaderAttributes(cmsHPROFILE hProfile, cmsUInt64Number* Flags)
+{
+    _cmsICCPROFILE*  Icc = (_cmsICCPROFILE*) hProfile;
+    memmove(Flags, &Icc -> attributes, sizeof(cmsUInt64Number));
+}
+
+void CMSEXPORT cmsSetHeaderAttributes(cmsHPROFILE hProfile, cmsUInt64Number Flags)
+{
+    _cmsICCPROFILE*  Icc = (_cmsICCPROFILE*) hProfile;
+    memmove(&Icc -> attributes, &Flags, sizeof(cmsUInt64Number));
+}
+
+void CMSEXPORT cmsGetHeaderProfileID(cmsHPROFILE hProfile, cmsUInt8Number* ProfileID)
+{
+    _cmsICCPROFILE*  Icc = (_cmsICCPROFILE*) hProfile;
+    memmove(ProfileID, Icc ->ProfileID.ID8, 16);
+}
+
+void CMSEXPORT cmsSetHeaderProfileID(cmsHPROFILE hProfile, cmsUInt8Number* ProfileID)
+{
+    _cmsICCPROFILE*  Icc = (_cmsICCPROFILE*) hProfile;
+    memmove(&Icc -> ProfileID, ProfileID, 16);
+}
+
+cmsBool  CMSEXPORT cmsGetHeaderCreationDateTime(cmsHPROFILE hProfile, struct tm *Dest)
+{
+    _cmsICCPROFILE*  Icc = (_cmsICCPROFILE*) hProfile;
+    memmove(Dest, &Icc ->Created, sizeof(struct tm));
+    return TRUE;
+}
+
+cmsColorSpaceSignature CMSEXPORT cmsGetPCS(cmsHPROFILE hProfile)
+{
+    _cmsICCPROFILE*  Icc = (_cmsICCPROFILE*) hProfile;
+    return Icc -> PCS;
+}
+
+void CMSEXPORT cmsSetPCS(cmsHPROFILE hProfile, cmsColorSpaceSignature pcs)
+{
+    _cmsICCPROFILE*  Icc = (_cmsICCPROFILE*) hProfile;
+    Icc -> PCS = pcs;
+}
+
+cmsColorSpaceSignature CMSEXPORT cmsGetColorSpace(cmsHPROFILE hProfile)
+{
+    _cmsICCPROFILE*  Icc = (_cmsICCPROFILE*) hProfile;
+    return Icc -> ColorSpace;
+}
+
+void CMSEXPORT cmsSetColorSpace(cmsHPROFILE hProfile, cmsColorSpaceSignature sig)
+{
+    _cmsICCPROFILE*  Icc = (_cmsICCPROFILE*) hProfile;
+    Icc -> ColorSpace = sig;
+}
+
+cmsProfileClassSignature CMSEXPORT cmsGetDeviceClass(cmsHPROFILE hProfile)
+{
+    _cmsICCPROFILE*  Icc = (_cmsICCPROFILE*) hProfile;
+    return Icc -> DeviceClass;
+}
+
+void CMSEXPORT cmsSetDeviceClass(cmsHPROFILE hProfile, cmsProfileClassSignature sig)
+{
+    _cmsICCPROFILE*  Icc = (_cmsICCPROFILE*) hProfile;
+    Icc -> DeviceClass = sig;
+}
+
+cmsUInt32Number CMSEXPORT cmsGetEncodedICCversion(cmsHPROFILE hProfile)
+{
+    _cmsICCPROFILE*  Icc = (_cmsICCPROFILE*) hProfile;
+    return Icc -> Version;
+}
+
+void CMSEXPORT cmsSetEncodedICCversion(cmsHPROFILE hProfile, cmsUInt32Number Version)
+{
+    _cmsICCPROFILE*  Icc = (_cmsICCPROFILE*) hProfile;
+    Icc -> Version = Version;
+}
+
+// Get an hexadecimal number with same digits as v
+static
+cmsUInt32Number BaseToBase(cmsUInt32Number in, int BaseIn, int BaseOut)
+{
+    char Buff[100];
+    int i, len;
+    cmsUInt32Number out;
+
+    for (len=0; in > 0 && len < 100; len++) {
+
+        Buff[len] = (char) (in % BaseIn);
+        in /= BaseIn;
+    }
+
+    for (i=len-1, out=0; i >= 0; --i) {
+        out = out * BaseOut + Buff[i];
+    }
+
+    return out;
+}
+
+void  CMSEXPORT cmsSetProfileVersion(cmsHPROFILE hProfile, cmsFloat64Number Version)
+{
+    _cmsICCPROFILE*  Icc = (_cmsICCPROFILE*) hProfile;
+
+    // 4.2 -> 0x4200000
+
+    Icc -> Version = BaseToBase((cmsUInt32Number) floor(Version * 100.0 + 0.5), 10, 16) << 16;
+}
+
+cmsFloat64Number CMSEXPORT cmsGetProfileVersion(cmsHPROFILE hProfile)
+{
+    _cmsICCPROFILE*  Icc = (_cmsICCPROFILE*) hProfile;
+    cmsUInt32Number n = Icc -> Version >> 16;
+
+    return BaseToBase(n, 16, 10) / 100.0;
+}
+// --------------------------------------------------------------------------------------------------------------
+
+
+// Create profile from IOhandler
+cmsHPROFILE CMSEXPORT cmsOpenProfileFromIOhandlerTHR(cmsContext ContextID, cmsIOHANDLER* io)
+{
+    _cmsICCPROFILE* NewIcc;
+    cmsHPROFILE hEmpty = cmsCreateProfilePlaceholder(ContextID);
+
+    if (hEmpty == NULL) return NULL;
+
+    NewIcc = (_cmsICCPROFILE*) hEmpty;
+
+    NewIcc ->IOhandler = io;
+    if (!_cmsReadHeader(NewIcc)) goto Error;
+    return hEmpty;
+
+Error:
+    cmsCloseProfile(hEmpty);
+    return NULL;
+}
+
+// Create profile from IOhandler
+cmsHPROFILE CMSEXPORT cmsOpenProfileFromIOhandler2THR(cmsContext ContextID, cmsIOHANDLER* io, cmsBool write)
+{
+    _cmsICCPROFILE* NewIcc;
+    cmsHPROFILE hEmpty = cmsCreateProfilePlaceholder(ContextID);
+
+    if (hEmpty == NULL) return NULL;
+
+    NewIcc = (_cmsICCPROFILE*) hEmpty;
+
+    NewIcc ->IOhandler = io;
+    if (write) {
+
+        NewIcc -> IsWrite = TRUE;
+        return hEmpty;
+    }
+
+    if (!_cmsReadHeader(NewIcc)) goto Error;
+    return hEmpty;
+
+Error:
+    cmsCloseProfile(hEmpty);
+    return NULL;
+}
+
+
+// Create profile from disk file
+cmsHPROFILE CMSEXPORT cmsOpenProfileFromFileTHR(cmsContext ContextID, const char *lpFileName, const char *sAccess)
+{
+    _cmsICCPROFILE* NewIcc;
+    cmsHPROFILE hEmpty = cmsCreateProfilePlaceholder(ContextID);
+
+    if (hEmpty == NULL) return NULL;
+
+    NewIcc = (_cmsICCPROFILE*) hEmpty;
+
+    NewIcc ->IOhandler = cmsOpenIOhandlerFromFile(ContextID, lpFileName, sAccess);
+    if (NewIcc ->IOhandler == NULL) goto Error;
+
+    if (*sAccess == 'W' || *sAccess == 'w') {
+
+        NewIcc -> IsWrite = TRUE;
+
+        return hEmpty;
+    }
+
+    if (!_cmsReadHeader(NewIcc)) goto Error;
+    return hEmpty;
+
+Error:
+    cmsCloseProfile(hEmpty);
+    return NULL;
+}
+
+
+cmsHPROFILE CMSEXPORT cmsOpenProfileFromFile(const char *ICCProfile, const char *sAccess)
+{
+    return cmsOpenProfileFromFileTHR(NULL, ICCProfile, sAccess);
+}
+
+
+cmsHPROFILE  CMSEXPORT cmsOpenProfileFromStreamTHR(cmsContext ContextID, FILE* ICCProfile, const char *sAccess)
+{
+    _cmsICCPROFILE* NewIcc;
+    cmsHPROFILE hEmpty = cmsCreateProfilePlaceholder(ContextID);
+
+    if (hEmpty == NULL) return NULL;
+
+    NewIcc = (_cmsICCPROFILE*) hEmpty;
+
+    NewIcc ->IOhandler = cmsOpenIOhandlerFromStream(ContextID, ICCProfile);
+    if (NewIcc ->IOhandler == NULL) goto Error;
+
+    if (*sAccess == 'w') {
+
+        NewIcc -> IsWrite = TRUE;
+        return hEmpty;
+    }
+
+    if (!_cmsReadHeader(NewIcc)) goto Error;
+    return hEmpty;
+
+Error:
+    cmsCloseProfile(hEmpty);
+    return NULL;
+
+}
+
+cmsHPROFILE  CMSEXPORT cmsOpenProfileFromStream(FILE* ICCProfile, const char *sAccess)
+{
+    return cmsOpenProfileFromStreamTHR(NULL, ICCProfile, sAccess);
+}
+
+
+// Open from memory block
+cmsHPROFILE CMSEXPORT cmsOpenProfileFromMemTHR(cmsContext ContextID, const void* MemPtr, cmsUInt32Number dwSize)
+{
+    _cmsICCPROFILE* NewIcc;
+    cmsHPROFILE hEmpty;
+
+    hEmpty = cmsCreateProfilePlaceholder(ContextID);
+    if (hEmpty == NULL) return NULL;
+
+    NewIcc = (_cmsICCPROFILE*) hEmpty;
+
+    // Ok, in this case const void* is casted to void* just because open IO handler
+    // shares read and writting modes. Don't abuse this feature!
+    NewIcc ->IOhandler = cmsOpenIOhandlerFromMem(ContextID, (void*) MemPtr, dwSize, "r");
+    if (NewIcc ->IOhandler == NULL) goto Error;
+
+    if (!_cmsReadHeader(NewIcc)) goto Error;
+
+    return hEmpty;
+
+Error:
+    cmsCloseProfile(hEmpty);
+    return NULL;
+}
+
+cmsHPROFILE CMSEXPORT cmsOpenProfileFromMem(const void* MemPtr, cmsUInt32Number dwSize)
+{
+    return cmsOpenProfileFromMemTHR(NULL, MemPtr, dwSize);
+}
+
+
+
+// Dump tag contents. If the profile is being modified, untouched tags are copied from FileOrig
+static
+cmsBool SaveTags(_cmsICCPROFILE* Icc, _cmsICCPROFILE* FileOrig)
+{
+    cmsUInt8Number* Data;
+    cmsUInt32Number i;
+    cmsUInt32Number Begin;
+    cmsIOHANDLER* io = Icc ->IOhandler;
+    cmsTagDescriptor* TagDescriptor;
+    cmsTagTypeSignature TypeBase;
+    cmsTagTypeSignature Type;
+    cmsTagTypeHandler* TypeHandler;
+    cmsFloat64Number   Version = cmsGetProfileVersion((cmsHPROFILE) Icc);
+    cmsTagTypeHandler LocalTypeHandler;
+
+    for (i=0; i < Icc -> TagCount; i++) {
+
+        if (Icc ->TagNames[i] == 0) continue;
+
+        // Linked tags are not written
+        if (Icc ->TagLinked[i] != (cmsTagSignature) 0) continue;
+
+        Icc -> TagOffsets[i] = Begin = io ->UsedSpace;
+
+        Data = (cmsUInt8Number*)  Icc -> TagPtrs[i];
+
+        if (!Data) {
+
+            // Reach here if we are copying a tag from a disk-based ICC profile which has not been modified by user.
+            // In this case a blind copy of the block data is performed
+            if (FileOrig != NULL && Icc -> TagOffsets[i]) {
+
+                cmsUInt32Number TagSize   = FileOrig -> TagSizes[i];
+                cmsUInt32Number TagOffset = FileOrig -> TagOffsets[i];
+                void* Mem;
+
+                if (!FileOrig ->IOhandler->Seek(FileOrig ->IOhandler, TagOffset)) return FALSE;
+
+                Mem = _cmsMalloc(Icc ->ContextID, TagSize);
+                if (Mem == NULL) return FALSE;
+
+                if (FileOrig ->IOhandler->Read(FileOrig->IOhandler, Mem, TagSize, 1) != 1) return FALSE;
+                if (!io ->Write(io, TagSize, Mem)) return FALSE;
+                _cmsFree(Icc ->ContextID, Mem);
+
+                Icc -> TagSizes[i] = (io ->UsedSpace - Begin);
+
+
+                // Align to 32 bit boundary.
+                if (! _cmsWriteAlignment(io))
+                    return FALSE;
+            }
+
+            continue;
+        }
+
+
+        // Should this tag be saved as RAW? If so, tagsizes should be specified in advance (no further cooking is done)
+        if (Icc ->TagSaveAsRaw[i]) {
+
+            if (io -> Write(io, Icc ->TagSizes[i], Data) != 1) return FALSE;
+        }
+        else {
+
+            // Search for support on this tag
+            TagDescriptor = _cmsGetTagDescriptor(Icc-> ContextID, Icc -> TagNames[i]);
+            if (TagDescriptor == NULL) continue;                        // Unsupported, ignore it
+           
+            if (TagDescriptor ->DecideType != NULL) {
+
+                Type = TagDescriptor ->DecideType(Version, Data);
+            }
+            else {
+
+                Type = TagDescriptor ->SupportedTypes[0];
+            }
+
+            TypeHandler =  _cmsGetTagTypeHandler(Icc->ContextID, Type);
+
+            if (TypeHandler == NULL) {
+                cmsSignalError(Icc ->ContextID, cmsERROR_INTERNAL, "(Internal) no handler for tag %x", Icc -> TagNames[i]);
+                continue;
+            }
+
+            TypeBase = TypeHandler ->Signature;
+            if (!_cmsWriteTypeBase(io, TypeBase))
+                return FALSE;
+
+            LocalTypeHandler = *TypeHandler;
+            LocalTypeHandler.ContextID  = Icc ->ContextID;
+            LocalTypeHandler.ICCVersion = Icc ->Version;
+            if (!LocalTypeHandler.WritePtr(&LocalTypeHandler, io, Data, TagDescriptor ->ElemCount)) {
+
+                char String[5];
+
+                _cmsTagSignature2String(String, (cmsTagSignature) TypeBase);
+                cmsSignalError(Icc ->ContextID, cmsERROR_WRITE, "Couldn't write type '%s'", String);
+                return FALSE;
+            }
+        }
+
+
+        Icc -> TagSizes[i] = (io ->UsedSpace - Begin);
+
+        // Align to 32 bit boundary.
+        if (! _cmsWriteAlignment(io))
+            return FALSE;
+    }
+
+
+    return TRUE;
+}
+
+
+// Fill the offset and size fields for all linked tags
+static
+cmsBool SetLinks( _cmsICCPROFILE* Icc)
+{
+    cmsUInt32Number i;
+
+    for (i=0; i < Icc -> TagCount; i++) {
+
+        cmsTagSignature lnk = Icc ->TagLinked[i];
+        if (lnk != (cmsTagSignature) 0) {
+
+            int j = _cmsSearchTag(Icc, lnk, FALSE);
+            if (j >= 0) {
+
+                Icc ->TagOffsets[i] = Icc ->TagOffsets[j];
+                Icc ->TagSizes[i]   = Icc ->TagSizes[j];
+            }
+
+        }
+    }
+
+    return TRUE;
+}
+
+// Low-level save to IOHANDLER. It returns the number of bytes used to
+// store the profile, or zero on error. io may be NULL and in this case
+// no data is written--only sizes are calculated
+cmsUInt32Number CMSEXPORT cmsSaveProfileToIOhandler(cmsHPROFILE hProfile, cmsIOHANDLER* io)
+{
+    _cmsICCPROFILE* Icc = (_cmsICCPROFILE*) hProfile;
+    _cmsICCPROFILE Keep;
+    cmsIOHANDLER* PrevIO = NULL;
+    cmsUInt32Number UsedSpace;
+    cmsContext ContextID;
+
+    _cmsAssert(hProfile != NULL);
+
+    memmove(&Keep, Icc, sizeof(_cmsICCPROFILE));
+
+    ContextID = cmsGetProfileContextID(hProfile);
+    PrevIO = Icc ->IOhandler = cmsOpenIOhandlerFromNULL(ContextID);
+    if (PrevIO == NULL) return 0;
+
+    // Pass #1 does compute offsets
+
+    if (!_cmsWriteHeader(Icc, 0)) goto Error;
+    if (!SaveTags(Icc, &Keep)) goto Error;
+
+    UsedSpace = PrevIO ->UsedSpace;
+
+    // Pass #2 does save to iohandler
+
+    if (io != NULL) {
+
+        Icc ->IOhandler = io;
+        if (!SetLinks(Icc)) goto Error;
+        if (!_cmsWriteHeader(Icc, UsedSpace)) goto Error;
+        if (!SaveTags(Icc, &Keep)) goto Error;
+    }
+
+    memmove(Icc, &Keep, sizeof(_cmsICCPROFILE));
+    if (!cmsCloseIOhandler(PrevIO)) return 0;
+
+    return UsedSpace;
+
+
+Error:
+    cmsCloseIOhandler(PrevIO);
+    memmove(Icc, &Keep, sizeof(_cmsICCPROFILE));
+    return 0;
+}
+
+#ifdef _WIN32_WCE
+int wceex_unlink(const char *filename);
+#ifndef remove
+#	define remove wceex_unlink
+#endif
+#endif
+
+// Low-level save to disk.
+cmsBool  CMSEXPORT cmsSaveProfileToFile(cmsHPROFILE hProfile, const char* FileName)
+{
+    cmsContext ContextID = cmsGetProfileContextID(hProfile);
+    cmsIOHANDLER* io = cmsOpenIOhandlerFromFile(ContextID, FileName, "w");
+    cmsBool rc;
+
+    if (io == NULL) return FALSE;
+
+    rc = (cmsSaveProfileToIOhandler(hProfile, io) != 0);
+    rc &= cmsCloseIOhandler(io);
+
+    if (rc == FALSE) {          // remove() is C99 per 7.19.4.1
+            remove(FileName);   // We have to IGNORE return value in this case
+    }
+    return rc;
+}
+
+// Same as anterior, but for streams
+cmsBool CMSEXPORT cmsSaveProfileToStream(cmsHPROFILE hProfile, FILE* Stream)
+{
+    cmsBool rc;
+    cmsContext ContextID = cmsGetProfileContextID(hProfile);
+    cmsIOHANDLER* io = cmsOpenIOhandlerFromStream(ContextID, Stream);
+
+    if (io == NULL) return FALSE;
+
+    rc = (cmsSaveProfileToIOhandler(hProfile, io) != 0);
+    rc &= cmsCloseIOhandler(io);
+
+    return rc;
+}
+
+
+// Same as anterior, but for memory blocks. In this case, a NULL as MemPtr means calculate needed space only
+cmsBool CMSEXPORT cmsSaveProfileToMem(cmsHPROFILE hProfile, void *MemPtr, cmsUInt32Number* BytesNeeded)
+{
+    cmsBool rc;
+    cmsIOHANDLER* io;
+    cmsContext ContextID = cmsGetProfileContextID(hProfile);
+
+    _cmsAssert(BytesNeeded != NULL);
+
+    // Should we just calculate the needed space?
+    if (MemPtr == NULL) {
+
+           *BytesNeeded =  cmsSaveProfileToIOhandler(hProfile, NULL);
+            return (*BytesNeeded == 0) ? FALSE : TRUE;
+    }
+
+    // That is a real write operation
+    io =  cmsOpenIOhandlerFromMem(ContextID, MemPtr, *BytesNeeded, "w");
+    if (io == NULL) return FALSE;
+
+    rc = (cmsSaveProfileToIOhandler(hProfile, io) != 0);
+    rc &= cmsCloseIOhandler(io);
+
+    return rc;
+}
+
+
+
+// Closes a profile freeing any involved resources
+cmsBool  CMSEXPORT cmsCloseProfile(cmsHPROFILE hProfile)
+{
+    _cmsICCPROFILE* Icc = (_cmsICCPROFILE*) hProfile;
+    cmsBool  rc = TRUE;
+    cmsUInt32Number i;
+
+    if (!Icc) return FALSE;
+
+    // Was open in write mode?
+    if (Icc ->IsWrite) {
+
+        Icc ->IsWrite = FALSE;      // Assure no further writting
+        rc &= cmsSaveProfileToFile(hProfile, Icc ->IOhandler->PhysicalFile);
+    }
+
+    for (i=0; i < Icc -> TagCount; i++) {
+
+        if (Icc -> TagPtrs[i]) {
+
+            cmsTagTypeHandler* TypeHandler = Icc ->TagTypeHandlers[i];
+
+            if (TypeHandler != NULL) {
+                cmsTagTypeHandler LocalTypeHandler = *TypeHandler;
+
+                LocalTypeHandler.ContextID = Icc ->ContextID;              // As an additional parameters
+                LocalTypeHandler.ICCVersion = Icc ->Version;
+                LocalTypeHandler.FreePtr(&LocalTypeHandler, Icc -> TagPtrs[i]);
+            }
+            else
+                _cmsFree(Icc ->ContextID, Icc ->TagPtrs[i]);
+        }
+    }
+
+    if (Icc ->IOhandler != NULL) {
+        rc &= cmsCloseIOhandler(Icc->IOhandler);
+    }
+
+    _cmsDestroyMutex(Icc->ContextID, Icc->UsrMutex);
+
+    _cmsFree(Icc ->ContextID, Icc);   // Free placeholder memory
+
+    return rc;
+}
+
+
+// -------------------------------------------------------------------------------------------------------------------
+
+
+// Returns TRUE if a given tag is supported by a plug-in
+static
+cmsBool IsTypeSupported(cmsTagDescriptor* TagDescriptor, cmsTagTypeSignature Type)
+{
+    cmsUInt32Number i, nMaxTypes;
+
+    nMaxTypes = TagDescriptor->nSupportedTypes;
+    if (nMaxTypes >= MAX_TYPES_IN_LCMS_PLUGIN)
+        nMaxTypes = MAX_TYPES_IN_LCMS_PLUGIN;
+
+    for (i=0; i < nMaxTypes; i++) {
+        if (Type == TagDescriptor ->SupportedTypes[i]) return TRUE;
+    }
+
+    return FALSE;
+}
+
+
+// That's the main read function
+void* CMSEXPORT cmsReadTag(cmsHPROFILE hProfile, cmsTagSignature sig)
+{
+    _cmsICCPROFILE* Icc = (_cmsICCPROFILE*) hProfile;
+    cmsIOHANDLER* io = Icc ->IOhandler;
+    cmsTagTypeHandler* TypeHandler;
+    cmsTagTypeHandler LocalTypeHandler;
+    cmsTagDescriptor*  TagDescriptor;
+    cmsTagTypeSignature BaseType;
+    cmsUInt32Number Offset, TagSize;
+    cmsUInt32Number ElemCount;
+    int n;
+
+    if (!_cmsLockMutex(Icc->ContextID, Icc ->UsrMutex)) return NULL;
+
+    n = _cmsSearchTag(Icc, sig, TRUE);
+    if (n < 0) goto Error;               // Not found, return NULL
+
+
+    // If the element is already in memory, return the pointer
+    if (Icc -> TagPtrs[n]) {
+
+        if (Icc->TagTypeHandlers[n] == NULL) goto Error;
+
+        // Sanity check
+        BaseType = Icc->TagTypeHandlers[n]->Signature;
+        if (BaseType == 0) goto Error;
+
+        TagDescriptor = _cmsGetTagDescriptor(Icc->ContextID, sig);
+        if (TagDescriptor == NULL) goto Error;
+
+        if (!IsTypeSupported(TagDescriptor, BaseType)) goto Error;
+
+        if (Icc ->TagSaveAsRaw[n]) goto Error;  // We don't support read raw tags as cooked
+
+        _cmsUnlockMutex(Icc->ContextID, Icc ->UsrMutex);
+        return Icc -> TagPtrs[n];
+    }
+
+    // We need to read it. Get the offset and size to the file
+    Offset    = Icc -> TagOffsets[n];
+    TagSize   = Icc -> TagSizes[n];
+
+    // Seek to its location
+    if (!io -> Seek(io, Offset))
+        goto Error;
+
+    // Search for support on this tag
+    TagDescriptor = _cmsGetTagDescriptor(Icc-> ContextID, sig);
+    if (TagDescriptor == NULL) {
+
+        char String[5];
+
+        _cmsTagSignature2String(String, sig);
+
+        // An unknown element was found.
+        cmsSignalError(Icc ->ContextID, cmsERROR_UNKNOWN_EXTENSION, "Unknown tag type '%s' found.", String);
+        goto Error;     // Unsupported.
+    }
+
+    // if supported, get type and check if in list
+    BaseType = _cmsReadTypeBase(io);
+    if (BaseType == 0) goto Error;
+
+    if (!IsTypeSupported(TagDescriptor, BaseType)) goto Error;
+
+    TagSize  -= 8;                      // Alredy read by the type base logic
+
+    // Get type handler
+    TypeHandler = _cmsGetTagTypeHandler(Icc ->ContextID, BaseType);
+    if (TypeHandler == NULL) goto Error;
+    LocalTypeHandler = *TypeHandler;
+
+
+    // Read the tag
+    Icc -> TagTypeHandlers[n] = TypeHandler;
+
+    LocalTypeHandler.ContextID = Icc ->ContextID;
+    LocalTypeHandler.ICCVersion = Icc ->Version;
+    Icc -> TagPtrs[n] = LocalTypeHandler.ReadPtr(&LocalTypeHandler, io, &ElemCount, TagSize);
+
+    // The tag type is supported, but something wrong happend and we cannot read the tag.
+    // let know the user about this (although it is just a warning)
+    if (Icc -> TagPtrs[n] == NULL) {
+
+        char String[5];
+
+        _cmsTagSignature2String(String, sig);
+        cmsSignalError(Icc ->ContextID, cmsERROR_CORRUPTION_DETECTED, "Corrupted tag '%s'", String);
+        goto Error;
+    }
+
+    // This is a weird error that may be a symptom of something more serious, the number of
+    // stored item is actually less than the number of required elements.
+    if (ElemCount < TagDescriptor ->ElemCount) {
+
+        char String[5];
+
+        _cmsTagSignature2String(String, sig);
+        cmsSignalError(Icc ->ContextID, cmsERROR_CORRUPTION_DETECTED, "'%s' Inconsistent number of items: expected %d, got %d",
+            String, TagDescriptor ->ElemCount, ElemCount);
+    }
+
+
+    // Return the data
+    _cmsUnlockMutex(Icc->ContextID, Icc ->UsrMutex);
+    return Icc -> TagPtrs[n];
+
+
+    // Return error and unlock tha data
+Error:
+    _cmsUnlockMutex(Icc->ContextID, Icc ->UsrMutex);
+    return NULL;
+}
+
+
+// Get true type of data
+cmsTagTypeSignature _cmsGetTagTrueType(cmsHPROFILE hProfile, cmsTagSignature sig)
+{
+    _cmsICCPROFILE* Icc = (_cmsICCPROFILE*) hProfile;
+    cmsTagTypeHandler* TypeHandler;
+    int n;
+
+    // Search for given tag in ICC profile directory
+    n = _cmsSearchTag(Icc, sig, TRUE);
+    if (n < 0) return (cmsTagTypeSignature) 0;                // Not found, return NULL
+
+    // Get the handler. The true type is there
+    TypeHandler =  Icc -> TagTypeHandlers[n];
+    return TypeHandler ->Signature;
+}
+
+
+// Write a single tag. This just keeps track of the tak into a list of "to be written". If the tag is already
+// in that list, the previous version is deleted.
+cmsBool CMSEXPORT cmsWriteTag(cmsHPROFILE hProfile, cmsTagSignature sig, const void* data)
+{
+    _cmsICCPROFILE* Icc = (_cmsICCPROFILE*) hProfile;
+    cmsTagTypeHandler* TypeHandler = NULL;
+    cmsTagTypeHandler LocalTypeHandler;
+    cmsTagDescriptor* TagDescriptor = NULL;
+    cmsTagTypeSignature Type;
+    int i;
+    cmsFloat64Number Version;
+    char TypeString[5], SigString[5];
+
+    if (!_cmsLockMutex(Icc->ContextID, Icc ->UsrMutex)) return FALSE;
+
+    // To delete tags.
+    if (data == NULL) {
+
+         // Delete the tag
+         i = _cmsSearchTag(Icc, sig, FALSE);
+         if (i >= 0) {
+                
+             // Use zero as a mark of deleted 
+             _cmsDeleteTagByPos(Icc, i);
+             Icc ->TagNames[i] = (cmsTagSignature) 0;
+             _cmsUnlockMutex(Icc->ContextID, Icc ->UsrMutex);
+             return TRUE;
+         }
+         // Didn't find the tag
+        goto Error;
+    }
+
+    if (!_cmsNewTag(Icc, sig, &i)) goto Error;
+
+    // This is not raw
+    Icc ->TagSaveAsRaw[i] = FALSE;
+
+    // This is not a link
+    Icc ->TagLinked[i] = (cmsTagSignature) 0;
+
+    // Get information about the TAG.
+    TagDescriptor = _cmsGetTagDescriptor(Icc-> ContextID, sig);
+    if (TagDescriptor == NULL){
+         cmsSignalError(Icc ->ContextID, cmsERROR_UNKNOWN_EXTENSION, "Unsupported tag '%x'", sig);
+        goto Error;
+    }
+
+
+    // Now we need to know which type to use. It depends on the version.
+    Version = cmsGetProfileVersion(hProfile);
+
+    if (TagDescriptor ->DecideType != NULL) {
+
+        // Let the tag descriptor to decide the type base on depending on
+        // the data. This is useful for example on parametric curves, where
+        // curves specified by a table cannot be saved as parametric and needs
+        // to be casted to single v2-curves, even on v4 profiles.
+
+        Type = TagDescriptor ->DecideType(Version, data);
+    }
+    else {
+
+        Type = TagDescriptor ->SupportedTypes[0];
+    }
+
+    // Does the tag support this type?
+    if (!IsTypeSupported(TagDescriptor, Type)) {
+
+        _cmsTagSignature2String(TypeString, (cmsTagSignature) Type);
+        _cmsTagSignature2String(SigString,  sig);
+
+        cmsSignalError(Icc ->ContextID, cmsERROR_UNKNOWN_EXTENSION, "Unsupported type '%s' for tag '%s'", TypeString, SigString);
+        goto Error;
+    }
+
+    // Does we have a handler for this type?
+    TypeHandler =  _cmsGetTagTypeHandler(Icc->ContextID, Type);
+    if (TypeHandler == NULL) {
+
+        _cmsTagSignature2String(TypeString, (cmsTagSignature) Type);
+        _cmsTagSignature2String(SigString,  sig);
+
+        cmsSignalError(Icc ->ContextID, cmsERROR_UNKNOWN_EXTENSION, "Unsupported type '%s' for tag '%s'", TypeString, SigString);
+        goto Error;           // Should never happen
+    }
+
+
+    // Fill fields on icc structure
+    Icc ->TagTypeHandlers[i]  = TypeHandler;
+    Icc ->TagNames[i]         = sig;
+    Icc ->TagSizes[i]         = 0;
+    Icc ->TagOffsets[i]       = 0;
+
+    LocalTypeHandler = *TypeHandler;
+    LocalTypeHandler.ContextID  = Icc ->ContextID;
+    LocalTypeHandler.ICCVersion = Icc ->Version;
+    Icc ->TagPtrs[i]            = LocalTypeHandler.DupPtr(&LocalTypeHandler, data, TagDescriptor ->ElemCount);
+
+    if (Icc ->TagPtrs[i] == NULL)  {
+
+        _cmsTagSignature2String(TypeString, (cmsTagSignature) Type);
+        _cmsTagSignature2String(SigString,  sig);
+        cmsSignalError(Icc ->ContextID, cmsERROR_CORRUPTION_DETECTED, "Malformed struct in type '%s' for tag '%s'", TypeString, SigString);
+
+        goto Error;
+    }
+
+    _cmsUnlockMutex(Icc->ContextID, Icc ->UsrMutex);
+    return TRUE;
+
+Error:
+    _cmsUnlockMutex(Icc->ContextID, Icc ->UsrMutex);
+    return FALSE;
+
+}
+
+// Read and write raw data. The only way those function would work and keep consistence with normal read and write
+// is to do an additional step of serialization. That means, readRaw would issue a normal read and then convert the obtained
+// data to raw bytes by using the "write" serialization logic. And vice-versa. I know this may end in situations where
+// raw data written does not exactly correspond with the raw data proposed to cmsWriteRaw data, but this approach allows
+// to write a tag as raw data and the read it as handled.
+
+cmsInt32Number CMSEXPORT cmsReadRawTag(cmsHPROFILE hProfile, cmsTagSignature sig, void* data, cmsUInt32Number BufferSize)
+{
+    _cmsICCPROFILE* Icc = (_cmsICCPROFILE*) hProfile;
+    void *Object;
+    int i;
+    cmsIOHANDLER* MemIO;
+    cmsTagTypeHandler* TypeHandler = NULL;
+    cmsTagTypeHandler LocalTypeHandler;
+    cmsTagDescriptor* TagDescriptor = NULL;
+    cmsUInt32Number rc;
+    cmsUInt32Number Offset, TagSize;
+
+    if (!_cmsLockMutex(Icc->ContextID, Icc ->UsrMutex)) return 0;
+
+    // Search for given tag in ICC profile directory
+    i = _cmsSearchTag(Icc, sig, TRUE);
+    if (i < 0) goto Error;                 // Not found, 
+
+    // It is already read?
+    if (Icc -> TagPtrs[i] == NULL) {
+
+        // No yet, get original position
+        Offset   = Icc ->TagOffsets[i];
+        TagSize  = Icc ->TagSizes[i];
+
+        // read the data directly, don't keep copy
+        if (data != NULL) {
+
+            if (BufferSize < TagSize)
+                TagSize = BufferSize;
+
+            if (!Icc ->IOhandler ->Seek(Icc ->IOhandler, Offset)) goto Error;
+            if (!Icc ->IOhandler ->Read(Icc ->IOhandler, data, 1, TagSize)) goto Error;
+
+            _cmsUnlockMutex(Icc->ContextID, Icc ->UsrMutex);
+            return TagSize;
+        }
+
+        _cmsUnlockMutex(Icc->ContextID, Icc ->UsrMutex);
+        return Icc ->TagSizes[i];
+    }
+
+    // The data has been already read, or written. But wait!, maybe the user choosed to save as
+    // raw data. In this case, return the raw data directly
+    if (Icc ->TagSaveAsRaw[i]) {
+
+        if (data != NULL)  {
+
+            TagSize  = Icc ->TagSizes[i];
+            if (BufferSize < TagSize)
+                TagSize = BufferSize;
+
+            memmove(data, Icc ->TagPtrs[i], TagSize);
+
+            _cmsUnlockMutex(Icc->ContextID, Icc ->UsrMutex);
+            return TagSize;
+        }
+
+        _cmsUnlockMutex(Icc->ContextID, Icc ->UsrMutex);
+        return Icc ->TagSizes[i];
+    }
+
+    // Already readed, or previously set by cmsWriteTag(). We need to serialize that
+    // data to raw in order to maintain consistency.
+
+    _cmsUnlockMutex(Icc->ContextID, Icc ->UsrMutex);
+    Object = cmsReadTag(hProfile, sig);
+    if (!_cmsLockMutex(Icc->ContextID, Icc ->UsrMutex)) return 0;
+
+    if (Object == NULL) goto Error;
+
+    // Now we need to serialize to a memory block: just use a memory iohandler
+
+    if (data == NULL) {
+        MemIO = cmsOpenIOhandlerFromNULL(cmsGetProfileContextID(hProfile));
+    } else{
+        MemIO = cmsOpenIOhandlerFromMem(cmsGetProfileContextID(hProfile), data, BufferSize, "w");
+    }
+    if (MemIO == NULL) goto Error;
+
+    // Obtain type handling for the tag
+    TypeHandler = Icc ->TagTypeHandlers[i];
+    TagDescriptor = _cmsGetTagDescriptor(Icc-> ContextID, sig);
+    if (TagDescriptor == NULL) {
+        cmsCloseIOhandler(MemIO);
+        goto Error;
+    }
+    
+    if (TypeHandler == NULL) goto Error;
+
+    // Serialize
+    LocalTypeHandler = *TypeHandler;
+    LocalTypeHandler.ContextID  = Icc ->ContextID;
+    LocalTypeHandler.ICCVersion = Icc ->Version;
+
+    if (!_cmsWriteTypeBase(MemIO, TypeHandler ->Signature)) {
+        cmsCloseIOhandler(MemIO);
+        goto Error;
+    }
+
+    if (!LocalTypeHandler.WritePtr(&LocalTypeHandler, MemIO, Object, TagDescriptor ->ElemCount)) {
+        cmsCloseIOhandler(MemIO);
+        goto Error;
+    }
+
+    // Get Size and close
+    rc = MemIO ->Tell(MemIO);
+    cmsCloseIOhandler(MemIO);      // Ignore return code this time
+
+    _cmsUnlockMutex(Icc->ContextID, Icc ->UsrMutex);
+    return rc;
+
+Error:
+    _cmsUnlockMutex(Icc->ContextID, Icc ->UsrMutex);
+    return 0;
+}
+
+// Similar to the anterior. This function allows to write directly to the ICC profile any data, without
+// checking anything. As a rule, mixing Raw with cooked doesn't work, so writting a tag as raw and then reading
+// it as cooked without serializing does result into an error. If that is wha you want, you will need to dump
+// the profile to memry or disk and then reopen it.
+cmsBool CMSEXPORT cmsWriteRawTag(cmsHPROFILE hProfile, cmsTagSignature sig, const void* data, cmsUInt32Number Size)
+{
+    _cmsICCPROFILE* Icc = (_cmsICCPROFILE*) hProfile;
+    int i;
+
+    if (!_cmsLockMutex(Icc->ContextID, Icc ->UsrMutex)) return 0;
+
+    if (!_cmsNewTag(Icc, sig, &i)) {
+        _cmsUnlockMutex(Icc->ContextID, Icc ->UsrMutex);
+         return FALSE;
+    }
+
+    // Mark the tag as being written as RAW
+    Icc ->TagSaveAsRaw[i] = TRUE;
+    Icc ->TagNames[i]     = sig;
+    Icc ->TagLinked[i]    = (cmsTagSignature) 0;
+
+    // Keep a copy of the block
+    Icc ->TagPtrs[i]  = _cmsDupMem(Icc ->ContextID, data, Size);
+    Icc ->TagSizes[i] = Size;
+
+    _cmsUnlockMutex(Icc->ContextID, Icc ->UsrMutex);
+    return TRUE;
+}
+
+// Using this function you can collapse several tag entries to the same block in the profile
+cmsBool CMSEXPORT cmsLinkTag(cmsHPROFILE hProfile, cmsTagSignature sig, cmsTagSignature dest)
+{
+    _cmsICCPROFILE* Icc = (_cmsICCPROFILE*) hProfile;
+    int i;
+
+     if (!_cmsLockMutex(Icc->ContextID, Icc ->UsrMutex)) return FALSE;
+
+    if (!_cmsNewTag(Icc, sig, &i)) {
+        _cmsUnlockMutex(Icc->ContextID, Icc ->UsrMutex);
+        return FALSE;
+    }
+
+    // Keep necessary information
+    Icc ->TagSaveAsRaw[i] = FALSE;
+    Icc ->TagNames[i]     = sig;
+    Icc ->TagLinked[i]    = dest;
+
+    Icc ->TagPtrs[i]    = NULL;
+    Icc ->TagSizes[i]   = 0;
+    Icc ->TagOffsets[i] = 0;
+
+    _cmsUnlockMutex(Icc->ContextID, Icc ->UsrMutex);
+    return TRUE;
+}
+
+
+// Returns the tag linked to sig, in the case two tags are sharing same resource
+cmsTagSignature  CMSEXPORT cmsTagLinkedTo(cmsHPROFILE hProfile, cmsTagSignature sig)
+{
+    _cmsICCPROFILE* Icc = (_cmsICCPROFILE*) hProfile;
+    int i;
+
+    // Search for given tag in ICC profile directory
+    i = _cmsSearchTag(Icc, sig, FALSE);
+    if (i < 0) return (cmsTagSignature) 0;                 // Not found, return 0
+
+    return Icc -> TagLinked[i];
+}