//
// Little cms
// Copyright (C) 1998-2007 Marti Maria
//
// 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.
//
// Generic I/O, tag dictionary management, profile struct
#include "lcms.h"
// Memory-based stream ---------------------------------------------------
typedef struct {
LPBYTE Block; // Points to allocated memory
size_t Size; // Size of allocated memory
int Pointer; // Points to current location
int FreeBlockOnClose; // As title
} FILEMEM;
static
LPVOID MemoryOpen(LPBYTE Block, size_t Size, char Mode)
{
FILEMEM* fm = (FILEMEM*) _cmsMalloc(sizeof(FILEMEM));
if (fm == NULL) return NULL;
ZeroMemory(fm, sizeof(FILEMEM));
if (Mode == 'r') {
fm ->Block = (LPBYTE) _cmsMalloc(Size);
if (fm ->Block == NULL) {
_cmsFree(fm);
return NULL;
}
CopyMemory(fm->Block, Block, Size);
fm ->FreeBlockOnClose = TRUE;
}
else {
fm ->Block = Block;
fm ->FreeBlockOnClose = FALSE;
}
fm ->Size = Size;
fm ->Pointer = 0;
return (LPVOID) fm;
}
static
size_t MemoryRead(LPVOID buffer, size_t size, size_t count, struct _lcms_iccprofile_struct* Icc)
{
FILEMEM* ResData = (FILEMEM*) Icc ->stream;
LPBYTE Ptr;
size_t len = size * count;
if (ResData -> Pointer + len > ResData -> Size){
len = (ResData -> Size - ResData -> Pointer);
cmsSignalError(LCMS_ERRC_ABORTED, "Read from memory error. Got %d bytes, block should be of %d bytes", len * size, count * size);
return 0;
}
Ptr = ResData -> Block;
Ptr += ResData -> Pointer;
CopyMemory(buffer, Ptr, len);
ResData -> Pointer += (int) len;
return count;
}
// SEEK_CUR is assumed
static
LCMSBOOL MemorySeek(struct _lcms_iccprofile_struct* Icc, size_t offset)
{
FILEMEM* ResData = (FILEMEM*) Icc ->stream;
if (offset > ResData ->Size) {
cmsSignalError(LCMS_ERRC_ABORTED, "Pointer error; probably corrupted file");
return TRUE;
}
ResData ->Pointer = (DWORD) offset;
return FALSE;
}
// FTell
static
size_t MemoryTell(struct _lcms_iccprofile_struct* Icc)
{
FILEMEM* ResData = (FILEMEM*) Icc ->stream;
return ResData -> Pointer;
}
// Writes data to memory, also keeps used space for further reference. NO CHECK IS PERFORMED
static
LCMSBOOL MemoryWrite(struct _lcms_iccprofile_struct* Icc, size_t size, void *Ptr)
{
FILEMEM* ResData = (FILEMEM*) Icc ->stream;
if (size == 0) return TRUE;
if (ResData != NULL)
CopyMemory(ResData ->Block + Icc ->UsedSpace, Ptr, size);
Icc->UsedSpace += size;
return TRUE;
}
static
LCMSBOOL MemoryClose(struct _lcms_iccprofile_struct* Icc)
{
FILEMEM* ResData = (FILEMEM*) Icc ->stream;
if (ResData ->FreeBlockOnClose) {
if (ResData ->Block) _cmsFree(ResData ->Block);
}
_cmsFree(ResData);
return 0;
}
// File-based stream -------------------------------------------------------
static
LPVOID FileOpen(const char* filename)
{
return (void*) fopen(filename, "rb");
}
static
size_t FileRead(void *buffer, size_t size, size_t count, struct _lcms_iccprofile_struct* Icc)
{
size_t nReaded = fread(buffer, size, count, (FILE*) Icc->stream);
if (nReaded != count) {
cmsSignalError(LCMS_ERRC_ABORTED, "Read error. Got %d bytes, block should be of %d bytes", nReaded * size, count * size);
return 0;
}
return nReaded;
}
static
LCMSBOOL FileSeek(struct _lcms_iccprofile_struct* Icc, size_t offset)
{
if (fseek((FILE*) Icc ->stream, (long) offset, SEEK_SET) != 0) {
cmsSignalError(LCMS_ERRC_ABORTED, "Seek error; probably corrupted file");
return TRUE;
}
return FALSE;
}
static
size_t FileTell(struct _lcms_iccprofile_struct* Icc)
{
return ftell((FILE*) Icc ->stream);
}
// Writes data to stream, also keeps used space for further reference
static
LCMSBOOL FileWrite(struct _lcms_iccprofile_struct* Icc, size_t size, LPVOID Ptr)
{
if (size == 0) return TRUE;
Icc->UsedSpace += size;
if (Icc->stream == NULL) {
return TRUE;
}
return (fwrite(Ptr, size, 1, (FILE*) Icc->stream) == 1);
}
static
LCMSBOOL FileClose(struct _lcms_iccprofile_struct* Icc)
{
return fclose((FILE*) Icc ->stream);
}
// ----------------------------------------------------------------------------------------------------
// Creates an empty structure holding all required parameters
cmsHPROFILE _cmsCreateProfilePlaceholder(void)
{
LPLCMSICCPROFILE Icc = (LPLCMSICCPROFILE) _cmsMalloc(sizeof(LCMSICCPROFILE));
if (Icc == NULL) return NULL;
// Empty values
ZeroMemory(Icc, sizeof(LCMSICCPROFILE));
// Make sure illuminant is correct
Icc ->Illuminant = *cmsD50_XYZ();
// Set it to empty
Icc -> TagCount = 0;
// Return the handle
return (cmsHPROFILE) Icc;
}
// Return the number of tags
icInt32Number LCMSEXPORT cmsGetTagCount(cmsHPROFILE hProfile)
{
LPLCMSICCPROFILE Icc = (LPLCMSICCPROFILE) hProfile;
return Icc->TagCount;
}
// Return the tag signature of a given tag number
icTagSignature LCMSEXPORT cmsGetTagSignature(cmsHPROFILE hProfile, icInt32Number n)
{
LPLCMSICCPROFILE Icc = (LPLCMSICCPROFILE) hProfile;
if (n < 0 || n > Icc->TagCount) return (icTagSignature) 0; // Mark as not available
return Icc ->TagNames[n];
}
// Search for a specific tag in tag dictionary
// Returns position or -1 if tag not found
icInt32Number _cmsSearchTag(LPLCMSICCPROFILE Profile, icTagSignature sig, LCMSBOOL lSignalError)
{
icInt32Number i;
if (sig == 0) return -1; // 0 identifies a special tag holding raw memory.
for (i=0; i < Profile -> TagCount; i++) {
if (sig == Profile -> TagNames[i])
return i;
}
if (lSignalError)
cmsSignalError(LCMS_ERRC_ABORTED, "Tag '%lx' not found", sig);
return -1;
}
// Check existance
LCMSBOOL LCMSEXPORT cmsIsTag(cmsHPROFILE hProfile, icTagSignature sig)
{
LPLCMSICCPROFILE Icc = (LPLCMSICCPROFILE) (LPSTR) hProfile;
return _cmsSearchTag(Icc, sig, FALSE) >= 0;
}
// Search for a particular tag, replace if found or add new one else
LPVOID _cmsInitTag(LPLCMSICCPROFILE Icc, icTagSignature sig, size_t size, const void* Init)
{
LPVOID Ptr;
icInt32Number i;
i = _cmsSearchTag(Icc, sig, FALSE);
if (i >=0) {
if (Icc -> TagPtrs[i]) _cmsFree(Icc -> TagPtrs[i]);
}
else {
i = Icc -> TagCount;
Icc -> TagCount++;
if (Icc ->TagCount >= MAX_TABLE_TAG) {
cmsSignalError(LCMS_ERRC_ABORTED, "Too many tags (%d)", MAX_TABLE_TAG);
Icc ->TagCount = MAX_TABLE_TAG-1;
return NULL;
}
}
Ptr = _cmsMalloc(size);
if (Ptr == NULL) return NULL;
CopyMemory(Ptr, Init, size);
Icc ->TagNames[i] = sig;
Icc ->TagSizes[i] = size;
Icc ->TagPtrs[i] = Ptr;
return Ptr;
}
// Creates a profile from file read placeholder
LPLCMSICCPROFILE _cmsCreateProfileFromFilePlaceholder(const char* FileName)
{
LPLCMSICCPROFILE NewIcc;
LPVOID ICCfile = FileOpen(FileName);
if (ICCfile == NULL) {
cmsSignalError(LCMS_ERRC_ABORTED, "File '%s' not found", FileName);
return NULL;
}
NewIcc = (LPLCMSICCPROFILE) _cmsCreateProfilePlaceholder();
if (NewIcc == NULL) return NULL;
strncpy(NewIcc -> PhysicalFile, FileName, MAX_PATH-1);
NewIcc -> PhysicalFile[MAX_PATH-1] = 0;
NewIcc ->stream = ICCfile;
NewIcc ->Read = FileRead;
NewIcc ->Seek = FileSeek;
NewIcc ->Tell = FileTell;
NewIcc ->Close = FileClose;
NewIcc ->Write = NULL;
NewIcc ->IsWrite = FALSE;
return NewIcc;
}
// Creates a profile from memory read placeholder
LPLCMSICCPROFILE _cmsCreateProfileFromMemPlaceholder(LPVOID MemPtr, DWORD dwSize)
{
LPLCMSICCPROFILE NewIcc;
LPVOID ICCfile = MemoryOpen((LPBYTE) MemPtr, (size_t) dwSize, 'r');
if (ICCfile == NULL) {
cmsSignalError(LCMS_ERRC_ABORTED, "Couldn't allocate %ld bytes for profile", dwSize);
return NULL;
}
NewIcc = (LPLCMSICCPROFILE) _cmsCreateProfilePlaceholder();
if (NewIcc == NULL) return NULL;
NewIcc -> PhysicalFile[0] = 0;
NewIcc ->stream = ICCfile;
NewIcc ->Read = MemoryRead;
NewIcc ->Seek = MemorySeek;
NewIcc ->Tell = MemoryTell;
NewIcc ->Close = MemoryClose;
NewIcc ->Write = NULL;
NewIcc ->IsWrite = FALSE;
return NewIcc;
}
// Turn a placeholder into file writter
void _cmsSetSaveToDisk(LPLCMSICCPROFILE Icc, const char* FileName)
{
if (FileName == NULL) {
Icc ->stream = NULL;
}
else {
Icc ->stream = fopen(FileName, "wb");
if (Icc ->stream == NULL)
cmsSignalError(LCMS_ERRC_ABORTED, "Couldn't write to file '%s'", FileName);
}
Icc ->Write = FileWrite; // Save to disk
Icc ->Close = FileClose;
}
// Turn a placeholder into memory writter
void _cmsSetSaveToMemory(LPLCMSICCPROFILE Icc, LPVOID MemPtr, size_t dwSize)
{
if (MemPtr == NULL) {
Icc ->stream = NULL;
}
else {
Icc ->stream = (FILEMEM*) MemoryOpen((LPBYTE) MemPtr, dwSize, 'w');
if (Icc ->stream == NULL)
cmsSignalError(LCMS_ERRC_ABORTED, "Couldn't write to memory");
}
Icc ->Write = MemoryWrite;
Icc ->Close = MemoryClose;
}
// ----------------------------------------------------------------------- Set/Get several struct members
LCMSBOOL LCMSEXPORT cmsTakeMediaWhitePoint(LPcmsCIEXYZ Dest, cmsHPROFILE hProfile)
{
LPLCMSICCPROFILE Icc = (LPLCMSICCPROFILE) hProfile;
*Dest = Icc -> MediaWhitePoint;
return TRUE;
}
LCMSBOOL LCMSEXPORT cmsTakeMediaBlackPoint(LPcmsCIEXYZ Dest, cmsHPROFILE hProfile)
{
LPLCMSICCPROFILE Icc = (LPLCMSICCPROFILE) hProfile;
*Dest = Icc -> MediaBlackPoint;
return TRUE;
}
LCMSBOOL LCMSEXPORT cmsTakeIluminant(LPcmsCIEXYZ Dest, cmsHPROFILE hProfile)
{
LPLCMSICCPROFILE Icc = (LPLCMSICCPROFILE) hProfile;
*Dest = Icc -> Illuminant;
return TRUE;
}
int LCMSEXPORT cmsTakeRenderingIntent(cmsHPROFILE hProfile)
{
LPLCMSICCPROFILE Icc = (LPLCMSICCPROFILE) hProfile;
return (int) Icc -> RenderingIntent;
}
void LCMSEXPORT cmsSetRenderingIntent(cmsHPROFILE hProfile, int RenderingIntent)
{
LPLCMSICCPROFILE Icc = (LPLCMSICCPROFILE) hProfile;
Icc -> RenderingIntent = (icRenderingIntent) RenderingIntent;
}
DWORD LCMSEXPORT cmsTakeHeaderFlags(cmsHPROFILE hProfile)
{
LPLCMSICCPROFILE Icc = (LPLCMSICCPROFILE) hProfile;
return (DWORD) Icc -> flags;
}
void LCMSEXPORT cmsSetHeaderFlags(cmsHPROFILE hProfile, DWORD Flags)
{
LPLCMSICCPROFILE Icc = (LPLCMSICCPROFILE) hProfile;
Icc -> flags = (icUInt32Number) Flags;
}
DWORD LCMSEXPORT cmsTakeHeaderAttributes(cmsHPROFILE hProfile)
{
LPLCMSICCPROFILE Icc = (LPLCMSICCPROFILE) hProfile;
return (DWORD) Icc -> attributes;
}
void LCMSEXPORT cmsSetHeaderAttributes(cmsHPROFILE hProfile, DWORD Flags)
{
LPLCMSICCPROFILE Icc = (LPLCMSICCPROFILE) hProfile;
Icc -> attributes = (icUInt32Number) Flags;
}
const BYTE* LCMSEXPORT cmsTakeProfileID(cmsHPROFILE hProfile)
{
LPLCMSICCPROFILE Icc = (LPLCMSICCPROFILE) hProfile;
return Icc ->ProfileID;
}
void LCMSEXPORT cmsSetProfileID(cmsHPROFILE hProfile, LPBYTE ProfileID)
{
LPLCMSICCPROFILE Icc = (LPLCMSICCPROFILE) hProfile;
CopyMemory(Icc -> ProfileID, ProfileID, 16);
}
LCMSBOOL LCMSEXPORT cmsTakeCreationDateTime(struct tm *Dest, cmsHPROFILE hProfile)
{
LPLCMSICCPROFILE Icc = (LPLCMSICCPROFILE) (LPSTR) hProfile;
CopyMemory(Dest, &Icc ->Created, sizeof(struct tm));
return TRUE;
}
icColorSpaceSignature LCMSEXPORT cmsGetPCS(cmsHPROFILE hProfile)
{
LPLCMSICCPROFILE Icc = (LPLCMSICCPROFILE) hProfile;
return Icc -> PCS;
}
void LCMSEXPORT cmsSetPCS(cmsHPROFILE hProfile, icColorSpaceSignature pcs)
{
LPLCMSICCPROFILE Icc = (LPLCMSICCPROFILE) hProfile;
Icc -> PCS = pcs;
}
icColorSpaceSignature LCMSEXPORT cmsGetColorSpace(cmsHPROFILE hProfile)
{
LPLCMSICCPROFILE Icc = (LPLCMSICCPROFILE) hProfile;
return Icc -> ColorSpace;
}
void LCMSEXPORT cmsSetColorSpace(cmsHPROFILE hProfile, icColorSpaceSignature sig)
{
LPLCMSICCPROFILE Icc = (LPLCMSICCPROFILE) hProfile;
Icc -> ColorSpace = sig;
}
icProfileClassSignature LCMSEXPORT cmsGetDeviceClass(cmsHPROFILE hProfile)
{
LPLCMSICCPROFILE Icc = (LPLCMSICCPROFILE) hProfile;
return Icc -> DeviceClass;
}
DWORD LCMSEXPORT cmsGetProfileICCversion(cmsHPROFILE hProfile)
{
LPLCMSICCPROFILE Icc = (LPLCMSICCPROFILE) hProfile;
return (DWORD) Icc -> Version;
}
void LCMSEXPORT cmsSetProfileICCversion(cmsHPROFILE hProfile, DWORD Version)
{
LPLCMSICCPROFILE Icc = (LPLCMSICCPROFILE) hProfile;
Icc -> Version = Version;
}
void LCMSEXPORT cmsSetDeviceClass(cmsHPROFILE hProfile, icProfileClassSignature sig)
{
LPLCMSICCPROFILE Icc = (LPLCMSICCPROFILE) hProfile;
Icc -> DeviceClass = sig;
}
// --------------------------------------------------------------------------------------------------------------
static
int SizeOfGammaTab(LPGAMMATABLE In)
{
return sizeof(GAMMATABLE) + (In -> nEntries - 1)*sizeof(WORD);
}
// Creates a phantom tag holding a memory block
static
LPVOID DupBlock(LPLCMSICCPROFILE Icc, LPVOID Block, size_t size)
{
if (Block != NULL && size > 0)
return _cmsInitTag(Icc, (icTagSignature) 0, size, Block);
else
return NULL;
}
// This is tricky, since LUT structs does have pointers
LCMSBOOL LCMSEXPORT _cmsAddLUTTag(cmsHPROFILE hProfile, icTagSignature sig, const void* lut)
{
LPLCMSICCPROFILE Icc = (LPLCMSICCPROFILE) (LPSTR) hProfile;
LPLUT Orig, Stored;
unsigned int i;
// The struct itself
Orig = (LPLUT) lut;
Stored = (LPLUT) _cmsInitTag(Icc, (icTagSignature) sig, sizeof(LUT), lut);
// dup' the memory blocks
for (i=0; i < Orig ->InputChan; i++)
Stored -> L1[i] = (LPWORD) DupBlock(Icc, (LPWORD) Orig ->L1[i],
sizeof(WORD) * Orig ->In16params.nSamples);
for (i=0; i < Orig ->OutputChan; i++)
Stored -> L2[i] = (LPWORD) DupBlock(Icc, (LPWORD) Orig ->L2[i],
sizeof(WORD) * Orig ->Out16params.nSamples);
Stored -> T = (LPWORD) DupBlock(Icc, (LPWORD) Orig ->T, Orig -> Tsize);
// Zero any additional pointer
Stored ->CLut16params.p8 = NULL;
return TRUE;
}
LCMSBOOL LCMSEXPORT _cmsAddXYZTag(cmsHPROFILE hProfile, icTagSignature sig, const cmsCIEXYZ* XYZ)
{
LPLCMSICCPROFILE Icc = (LPLCMSICCPROFILE) (LPSTR) hProfile;
_cmsInitTag(Icc, sig, sizeof(cmsCIEXYZ), XYZ);
return TRUE;
}
LCMSBOOL LCMSEXPORT _cmsAddTextTag(cmsHPROFILE hProfile, icTagSignature sig, const char* Text)
{
LPLCMSICCPROFILE Icc = (LPLCMSICCPROFILE) (LPSTR) hProfile;
_cmsInitTag(Icc, sig, strlen(Text)+1, (LPVOID) Text);
return TRUE;
}
LCMSBOOL LCMSEXPORT _cmsAddGammaTag(cmsHPROFILE hProfile, icTagSignature sig, LPGAMMATABLE TransferFunction)
{
LPLCMSICCPROFILE Icc = (LPLCMSICCPROFILE) (LPSTR) hProfile;
_cmsInitTag(Icc, sig, SizeOfGammaTab(TransferFunction), TransferFunction);
return TRUE;
}
LCMSBOOL LCMSEXPORT _cmsAddChromaticityTag(cmsHPROFILE hProfile, icTagSignature sig, LPcmsCIExyYTRIPLE Chrm)
{
LPLCMSICCPROFILE Icc = (LPLCMSICCPROFILE) (LPSTR) hProfile;
_cmsInitTag(Icc, sig, sizeof(cmsCIExyYTRIPLE), Chrm);
return TRUE;
}
LCMSBOOL LCMSEXPORT _cmsAddSequenceDescriptionTag(cmsHPROFILE hProfile, icTagSignature sig, LPcmsSEQ pseq)
{
LPLCMSICCPROFILE Icc = (LPLCMSICCPROFILE) (LPSTR) hProfile;
_cmsInitTag(Icc, sig, sizeof(int) + pseq -> n * sizeof(cmsPSEQDESC), pseq);
return TRUE;
}
LCMSBOOL LCMSEXPORT _cmsAddNamedColorTag(cmsHPROFILE hProfile, icTagSignature sig, LPcmsNAMEDCOLORLIST nc)
{
LPLCMSICCPROFILE Icc = (LPLCMSICCPROFILE) (LPSTR) hProfile;
_cmsInitTag(Icc, sig, sizeof(cmsNAMEDCOLORLIST) + (nc ->nColors - 1) * sizeof(cmsNAMEDCOLOR), nc);
return TRUE;
}
LCMSBOOL LCMSEXPORT _cmsAddDateTimeTag(cmsHPROFILE hProfile, icTagSignature sig, struct tm *DateTime)
{
LPLCMSICCPROFILE Icc = (LPLCMSICCPROFILE) (LPSTR) hProfile;
_cmsInitTag(Icc, sig, sizeof(struct tm), DateTime);
return TRUE;
}
LCMSBOOL LCMSEXPORT _cmsAddColorantTableTag(cmsHPROFILE hProfile, icTagSignature sig, LPcmsNAMEDCOLORLIST nc)
{
LPLCMSICCPROFILE Icc = (LPLCMSICCPROFILE) (LPSTR) hProfile;
_cmsInitTag(Icc, sig, sizeof(cmsNAMEDCOLORLIST) + (nc ->nColors - 1) * sizeof(cmsNAMEDCOLOR), nc);
return TRUE;
}
LCMSBOOL LCMSEXPORT _cmsAddChromaticAdaptationTag(cmsHPROFILE hProfile, icTagSignature sig, const cmsCIEXYZ* mat)
{
LPLCMSICCPROFILE Icc = (LPLCMSICCPROFILE) (LPSTR) hProfile;
_cmsInitTag(Icc, sig, 3*sizeof(cmsCIEXYZ), mat);
return TRUE;
}
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