diff options
Diffstat (limited to 'third_party/lcms2-2.6/src/cmsio0.c')
| -rw-r--r-- | third_party/lcms2-2.6/src/cmsio0.c | 1883 |
1 files changed, 1883 insertions, 0 deletions
diff --git a/third_party/lcms2-2.6/src/cmsio0.c b/third_party/lcms2-2.6/src/cmsio0.c new file mode 100644 index 0000000000..6549d15d9e --- /dev/null +++ b/third_party/lcms2-2.6/src/cmsio0.c @@ -0,0 +1,1883 @@ +//--------------------------------------------------------------------------------- +// +// 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 ->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 ->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]; +} |