openjpeg/thirdparty/liblcms2/src/cmserr.c

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//---------------------------------------------------------------------------------
//
// Little Color Management System
// Copyright (c) 1998-2016 Marti Maria Saguer
//
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// 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:
//
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// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
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// 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"
// This function is here to help applications to prevent mixing lcms versions on header and shared objects.
int CMSEXPORT cmsGetEncodedCMMversion(void)
{
return LCMS_VERSION;
}
// I am so tired about incompatibilities on those functions that here are some replacements
// that hopefully would be fully portable.
// compare two strings ignoring case
int CMSEXPORT cmsstrcasecmp(const char* s1, const char* s2)
{
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register const unsigned char *us1 = (const unsigned char *)s1,
*us2 = (const unsigned char *)s2;
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while (toupper(*us1) == toupper(*us2++))
if (*us1++ == '\0')
return 0;
return (toupper(*us1) - toupper(*--us2));
}
// long int because C99 specifies ftell in such way (7.19.9.2)
long int CMSEXPORT cmsfilelength(FILE* f)
{
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long int p , n;
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p = ftell(f); // register current file position
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if (fseek(f, 0, SEEK_END) != 0) {
return -1;
}
n = ftell(f);
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fseek(f, p, SEEK_SET); // file position restored
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return n;
}
// Memory handling ------------------------------------------------------------------
//
// This is the interface to low-level memory management routines. By default a simple
// wrapping to malloc/free/realloc is provided, although there is a limit on the max
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// amount of memoy that can be reclaimed. This is mostly as a safety feature to prevent
// bogus or evil code to allocate huge blocks that otherwise lcms would never need.
#define MAX_MEMORY_FOR_ALLOC ((cmsUInt32Number)(1024U*1024U*512U))
// User may override this behaviour by using a memory plug-in, which basically replaces
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// the default memory management functions. In this case, no check is performed and it
// is up to the plug-in writter to keep in the safe side. There are only three functions
// required to be implemented: malloc, realloc and free, although the user may want to
// replace the optional mallocZero, calloc and dup as well.
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cmsBool _cmsRegisterMemHandlerPlugin(cmsContext ContextID, cmsPluginBase* Plugin);
// *********************************************************************************
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// This is the default memory allocation function. It does a very coarse
// check of amout of memory, just to prevent exploits
static
void* _cmsMallocDefaultFn(cmsContext ContextID, cmsUInt32Number size)
{
if (size > MAX_MEMORY_FOR_ALLOC) return NULL; // Never allow over maximum
return (void*) malloc(size);
cmsUNUSED_PARAMETER(ContextID);
}
// Generic allocate & zero
static
void* _cmsMallocZeroDefaultFn(cmsContext ContextID, cmsUInt32Number size)
{
void *pt = _cmsMalloc(ContextID, size);
if (pt == NULL) return NULL;
memset(pt, 0, size);
return pt;
}
// The default free function. The only check proformed is against NULL pointers
static
void _cmsFreeDefaultFn(cmsContext ContextID, void *Ptr)
{
// free(NULL) is defined a no-op by C99, therefore it is safe to
// avoid the check, but it is here just in case...
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if (Ptr) free(Ptr);
cmsUNUSED_PARAMETER(ContextID);
}
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// The default realloc function. Again it checks for exploits. If Ptr is NULL,
// realloc behaves the same way as malloc and allocates a new block of size bytes.
static
void* _cmsReallocDefaultFn(cmsContext ContextID, void* Ptr, cmsUInt32Number size)
{
if (size > MAX_MEMORY_FOR_ALLOC) return NULL; // Never realloc over 512Mb
return realloc(Ptr, size);
cmsUNUSED_PARAMETER(ContextID);
}
// The default calloc function. Allocates an array of num elements, each one of size bytes
// all memory is initialized to zero.
static
void* _cmsCallocDefaultFn(cmsContext ContextID, cmsUInt32Number num, cmsUInt32Number size)
{
cmsUInt32Number Total = num * size;
// Preserve calloc behaviour
if (Total == 0) return NULL;
// Safe check for overflow.
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if (num >= UINT_MAX / size) return NULL;
// Check for overflow
if (Total < num || Total < size) {
return NULL;
}
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if (Total > MAX_MEMORY_FOR_ALLOC) return NULL; // Never alloc over 512Mb
return _cmsMallocZero(ContextID, Total);
}
// Generic block duplication
static
void* _cmsDupDefaultFn(cmsContext ContextID, const void* Org, cmsUInt32Number size)
{
void* mem;
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if (size > MAX_MEMORY_FOR_ALLOC) return NULL; // Never dup over 512Mb
mem = _cmsMalloc(ContextID, size);
if (mem != NULL && Org != NULL)
memmove(mem, Org, size);
return mem;
}
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// Pointers to memory manager functions in Context0
_cmsMemPluginChunkType _cmsMemPluginChunk = { _cmsMallocDefaultFn, _cmsMallocZeroDefaultFn, _cmsFreeDefaultFn,
_cmsReallocDefaultFn, _cmsCallocDefaultFn, _cmsDupDefaultFn
};
// Reset and duplicate memory manager
void _cmsAllocMemPluginChunk(struct _cmsContext_struct* ctx, const struct _cmsContext_struct* src)
{
_cmsAssert(ctx != NULL);
if (src != NULL) {
// Duplicate
ctx ->chunks[MemPlugin] = _cmsSubAllocDup(ctx ->MemPool, src ->chunks[MemPlugin], sizeof(_cmsMemPluginChunkType));
}
else {
// To reset it, we use the default allocators, which cannot be overriden
ctx ->chunks[MemPlugin] = &ctx ->DefaultMemoryManager;
}
}
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// Auxiliary to fill memory management functions from plugin (or context 0 defaults)
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void _cmsInstallAllocFunctions(cmsPluginMemHandler* Plugin, _cmsMemPluginChunkType* ptr)
{
if (Plugin == NULL) {
memcpy(ptr, &_cmsMemPluginChunk, sizeof(_cmsMemPluginChunk));
}
else {
ptr ->MallocPtr = Plugin -> MallocPtr;
ptr ->FreePtr = Plugin -> FreePtr;
ptr ->ReallocPtr = Plugin -> ReallocPtr;
// Make sure we revert to defaults
ptr ->MallocZeroPtr= _cmsMallocZeroDefaultFn;
ptr ->CallocPtr = _cmsCallocDefaultFn;
ptr ->DupPtr = _cmsDupDefaultFn;
if (Plugin ->MallocZeroPtr != NULL) ptr ->MallocZeroPtr = Plugin -> MallocZeroPtr;
if (Plugin ->CallocPtr != NULL) ptr ->CallocPtr = Plugin -> CallocPtr;
if (Plugin ->DupPtr != NULL) ptr ->DupPtr = Plugin -> DupPtr;
}
}
// Plug-in replacement entry
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cmsBool _cmsRegisterMemHandlerPlugin(cmsContext ContextID, cmsPluginBase *Data)
{
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cmsPluginMemHandler* Plugin = (cmsPluginMemHandler*) Data;
_cmsMemPluginChunkType* ptr;
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// NULL forces to reset to defaults. In this special case, the defaults are stored in the context structure.
// Remaining plug-ins does NOT have any copy in the context structure, but this is somehow special as the
// context internal data should be malloce'd by using those functions.
if (Data == NULL) {
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struct _cmsContext_struct* ctx = ( struct _cmsContext_struct*) ContextID;
// Return to the default allocators
if (ContextID != NULL) {
ctx->chunks[MemPlugin] = (void*) &ctx->DefaultMemoryManager;
}
return TRUE;
}
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// Check for required callbacks
if (Plugin -> MallocPtr == NULL ||
Plugin -> FreePtr == NULL ||
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Plugin -> ReallocPtr == NULL) return FALSE;
// Set replacement functions
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ptr = (_cmsMemPluginChunkType*) _cmsContextGetClientChunk(ContextID, MemPlugin);
if (ptr == NULL)
return FALSE;
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_cmsInstallAllocFunctions(Plugin, ptr);
return TRUE;
}
// Generic allocate
void* CMSEXPORT _cmsMalloc(cmsContext ContextID, cmsUInt32Number size)
{
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_cmsMemPluginChunkType* ptr = (_cmsMemPluginChunkType*) _cmsContextGetClientChunk(ContextID, MemPlugin);
return ptr ->MallocPtr(ContextID, size);
}
// Generic allocate & zero
void* CMSEXPORT _cmsMallocZero(cmsContext ContextID, cmsUInt32Number size)
{
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_cmsMemPluginChunkType* ptr = (_cmsMemPluginChunkType*) _cmsContextGetClientChunk(ContextID, MemPlugin);
return ptr->MallocZeroPtr(ContextID, size);
}
// Generic calloc
void* CMSEXPORT _cmsCalloc(cmsContext ContextID, cmsUInt32Number num, cmsUInt32Number size)
{
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_cmsMemPluginChunkType* ptr = (_cmsMemPluginChunkType*) _cmsContextGetClientChunk(ContextID, MemPlugin);
return ptr->CallocPtr(ContextID, num, size);
}
// Generic reallocate
void* CMSEXPORT _cmsRealloc(cmsContext ContextID, void* Ptr, cmsUInt32Number size)
{
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_cmsMemPluginChunkType* ptr = (_cmsMemPluginChunkType*) _cmsContextGetClientChunk(ContextID, MemPlugin);
return ptr->ReallocPtr(ContextID, Ptr, size);
}
// Generic free memory
void CMSEXPORT _cmsFree(cmsContext ContextID, void* Ptr)
{
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if (Ptr != NULL) {
_cmsMemPluginChunkType* ptr = (_cmsMemPluginChunkType*) _cmsContextGetClientChunk(ContextID, MemPlugin);
ptr ->FreePtr(ContextID, Ptr);
}
}
// Generic block duplication
void* CMSEXPORT _cmsDupMem(cmsContext ContextID, const void* Org, cmsUInt32Number size)
{
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_cmsMemPluginChunkType* ptr = (_cmsMemPluginChunkType*) _cmsContextGetClientChunk(ContextID, MemPlugin);
return ptr ->DupPtr(ContextID, Org, size);
}
// ********************************************************************************************
// Sub allocation takes care of many pointers of small size. The memory allocated in
// this way have be freed at once. Next function allocates a single chunk for linked list
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// I prefer this method over realloc due to the big inpact on xput realloc may have if
// memory is being swapped to disk. This approach is safer (although that may not be true on all platforms)
static
_cmsSubAllocator_chunk* _cmsCreateSubAllocChunk(cmsContext ContextID, cmsUInt32Number Initial)
{
_cmsSubAllocator_chunk* chunk;
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// 20K by default
if (Initial == 0)
Initial = 20*1024;
// Create the container
chunk = (_cmsSubAllocator_chunk*) _cmsMallocZero(ContextID, sizeof(_cmsSubAllocator_chunk));
if (chunk == NULL) return NULL;
// Initialize values
chunk ->Block = (cmsUInt8Number*) _cmsMalloc(ContextID, Initial);
if (chunk ->Block == NULL) {
// Something went wrong
_cmsFree(ContextID, chunk);
return NULL;
}
chunk ->BlockSize = Initial;
chunk ->Used = 0;
chunk ->next = NULL;
return chunk;
}
// The suballocated is nothing but a pointer to the first element in the list. We also keep
// the thread ID in this structure.
_cmsSubAllocator* _cmsCreateSubAlloc(cmsContext ContextID, cmsUInt32Number Initial)
{
_cmsSubAllocator* sub;
// Create the container
sub = (_cmsSubAllocator*) _cmsMallocZero(ContextID, sizeof(_cmsSubAllocator));
if (sub == NULL) return NULL;
sub ->ContextID = ContextID;
sub ->h = _cmsCreateSubAllocChunk(ContextID, Initial);
if (sub ->h == NULL) {
_cmsFree(ContextID, sub);
return NULL;
}
return sub;
}
// Get rid of whole linked list
void _cmsSubAllocDestroy(_cmsSubAllocator* sub)
{
_cmsSubAllocator_chunk *chunk, *n;
for (chunk = sub ->h; chunk != NULL; chunk = n) {
n = chunk->next;
if (chunk->Block != NULL) _cmsFree(sub ->ContextID, chunk->Block);
_cmsFree(sub ->ContextID, chunk);
}
// Free the header
_cmsFree(sub ->ContextID, sub);
}
// Get a pointer to small memory block.
void* _cmsSubAlloc(_cmsSubAllocator* sub, cmsUInt32Number size)
{
cmsUInt32Number Free = sub -> h ->BlockSize - sub -> h -> Used;
cmsUInt8Number* ptr;
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size = _cmsALIGNMEM(size);
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// Check for memory. If there is no room, allocate a new chunk of double memory size.
if (size > Free) {
_cmsSubAllocator_chunk* chunk;
cmsUInt32Number newSize;
newSize = sub -> h ->BlockSize * 2;
if (newSize < size) newSize = size;
chunk = _cmsCreateSubAllocChunk(sub -> ContextID, newSize);
if (chunk == NULL) return NULL;
// Link list
chunk ->next = sub ->h;
sub ->h = chunk;
}
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ptr = sub -> h ->Block + sub -> h ->Used;
sub -> h -> Used += size;
return (void*) ptr;
}
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// Duplicate in pool
void* _cmsSubAllocDup(_cmsSubAllocator* s, const void *ptr, cmsUInt32Number size)
{
void *NewPtr;
// Dup of null pointer is also NULL
if (ptr == NULL)
return NULL;
NewPtr = _cmsSubAlloc(s, size);
if (ptr != NULL && NewPtr != NULL) {
memcpy(NewPtr, ptr, size);
}
return NewPtr;
}
// Error logging ******************************************************************
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// There is no error handling at all. When a function fails, it returns proper value.
// For example, all create functions does return NULL on failure. Other return FALSE
// It may be interesting, for the developer, to know why the function is failing.
// for that reason, lcms2 does offer a logging function. This function does recive
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// a ENGLISH string with some clues on what is going wrong. You can show this
// info to the end user, or just create some sort of log.
// The logging function should NOT terminate the program, as this obviously can leave
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// resources. It is the programmer's responsibility to check each function return code
// to make sure it didn't fail.
// Error messages are limited to MAX_ERROR_MESSAGE_LEN
#define MAX_ERROR_MESSAGE_LEN 1024
// ---------------------------------------------------------------------------------------------------------
// This is our default log error
static void DefaultLogErrorHandlerFunction(cmsContext ContextID, cmsUInt32Number ErrorCode, const char *Text);
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// Context0 storage, which is global
_cmsLogErrorChunkType _cmsLogErrorChunk = { DefaultLogErrorHandlerFunction };
// Allocates and inits error logger container for a given context. If src is NULL, only initializes the value
// to the default. Otherwise, it duplicates the value. The interface is standard across all context clients
void _cmsAllocLogErrorChunk(struct _cmsContext_struct* ctx,
const struct _cmsContext_struct* src)
{
static _cmsLogErrorChunkType LogErrorChunk = { DefaultLogErrorHandlerFunction };
void* from;
if (src != NULL) {
from = src ->chunks[Logger];
}
else {
from = &LogErrorChunk;
}
ctx ->chunks[Logger] = _cmsSubAllocDup(ctx ->MemPool, from, sizeof(_cmsLogErrorChunkType));
}
// The default error logger does nothing.
static
void DefaultLogErrorHandlerFunction(cmsContext ContextID, cmsUInt32Number ErrorCode, const char *Text)
{
// fprintf(stderr, "[lcms]: %s\n", Text);
// fflush(stderr);
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cmsUNUSED_PARAMETER(ContextID);
cmsUNUSED_PARAMETER(ErrorCode);
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cmsUNUSED_PARAMETER(Text);
}
// Change log error, context based
void CMSEXPORT cmsSetLogErrorHandlerTHR(cmsContext ContextID, cmsLogErrorHandlerFunction Fn)
{
_cmsLogErrorChunkType* lhg = (_cmsLogErrorChunkType*) _cmsContextGetClientChunk(ContextID, Logger);
if (lhg != NULL) {
if (Fn == NULL)
lhg -> LogErrorHandler = DefaultLogErrorHandlerFunction;
else
lhg -> LogErrorHandler = Fn;
}
}
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// Change log error, legacy
void CMSEXPORT cmsSetLogErrorHandler(cmsLogErrorHandlerFunction Fn)
{
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cmsSetLogErrorHandlerTHR(NULL, Fn);
}
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// Log an error
// ErrorText is a text holding an english description of error.
void CMSEXPORT cmsSignalError(cmsContext ContextID, cmsUInt32Number ErrorCode, const char *ErrorText, ...)
{
va_list args;
char Buffer[MAX_ERROR_MESSAGE_LEN];
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_cmsLogErrorChunkType* lhg;
va_start(args, ErrorText);
vsnprintf(Buffer, MAX_ERROR_MESSAGE_LEN-1, ErrorText, args);
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va_end(args);
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// Check for the context, if specified go there. If not, go for the global
lhg = (_cmsLogErrorChunkType*) _cmsContextGetClientChunk(ContextID, Logger);
if (lhg ->LogErrorHandler) {
lhg ->LogErrorHandler(ContextID, ErrorCode, Buffer);
}
}
// Utility function to print signatures
void _cmsTagSignature2String(char String[5], cmsTagSignature sig)
{
cmsUInt32Number be;
// Convert to big endian
be = _cmsAdjustEndianess32((cmsUInt32Number) sig);
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// Move chars
memmove(String, &be, 4);
// Make sure of terminator
String[4] = 0;
}
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//--------------------------------------------------------------------------------------------------
static
void* defMtxCreate(cmsContext id)
{
_cmsMutex* ptr_mutex = (_cmsMutex*) _cmsMalloc(id, sizeof(_cmsMutex));
_cmsInitMutexPrimitive(ptr_mutex);
return (void*) ptr_mutex;
}
static
void defMtxDestroy(cmsContext id, void* mtx)
{
_cmsDestroyMutexPrimitive((_cmsMutex *) mtx);
_cmsFree(id, mtx);
}
static
cmsBool defMtxLock(cmsContext id, void* mtx)
{
cmsUNUSED_PARAMETER(id);
return _cmsLockPrimitive((_cmsMutex *) mtx) == 0;
}
static
void defMtxUnlock(cmsContext id, void* mtx)
{
cmsUNUSED_PARAMETER(id);
_cmsUnlockPrimitive((_cmsMutex *) mtx);
}
// Pointers to memory manager functions in Context0
_cmsMutexPluginChunkType _cmsMutexPluginChunk = { defMtxCreate, defMtxDestroy, defMtxLock, defMtxUnlock };
// Allocate and init mutex container.
void _cmsAllocMutexPluginChunk(struct _cmsContext_struct* ctx,
const struct _cmsContext_struct* src)
{
static _cmsMutexPluginChunkType MutexChunk = {defMtxCreate, defMtxDestroy, defMtxLock, defMtxUnlock };
void* from;
if (src != NULL) {
from = src ->chunks[MutexPlugin];
}
else {
from = &MutexChunk;
}
ctx ->chunks[MutexPlugin] = _cmsSubAllocDup(ctx ->MemPool, from, sizeof(_cmsMutexPluginChunkType));
}
// Register new ways to transform
cmsBool _cmsRegisterMutexPlugin(cmsContext ContextID, cmsPluginBase* Data)
{
cmsPluginMutex* Plugin = (cmsPluginMutex*) Data;
_cmsMutexPluginChunkType* ctx = ( _cmsMutexPluginChunkType*) _cmsContextGetClientChunk(ContextID, MutexPlugin);
if (Data == NULL) {
// No lock routines
ctx->CreateMutexPtr = NULL;
ctx->DestroyMutexPtr = NULL;
ctx->LockMutexPtr = NULL;
ctx ->UnlockMutexPtr = NULL;
return TRUE;
}
// Factory callback is required
if (Plugin ->CreateMutexPtr == NULL || Plugin ->DestroyMutexPtr == NULL ||
Plugin ->LockMutexPtr == NULL || Plugin ->UnlockMutexPtr == NULL) return FALSE;
ctx->CreateMutexPtr = Plugin->CreateMutexPtr;
ctx->DestroyMutexPtr = Plugin ->DestroyMutexPtr;
ctx ->LockMutexPtr = Plugin ->LockMutexPtr;
ctx ->UnlockMutexPtr = Plugin ->UnlockMutexPtr;
// All is ok
return TRUE;
}
// Generic Mutex fns
void* CMSEXPORT _cmsCreateMutex(cmsContext ContextID)
{
_cmsMutexPluginChunkType* ptr = (_cmsMutexPluginChunkType*) _cmsContextGetClientChunk(ContextID, MutexPlugin);
if (ptr ->CreateMutexPtr == NULL) return NULL;
return ptr ->CreateMutexPtr(ContextID);
}
void CMSEXPORT _cmsDestroyMutex(cmsContext ContextID, void* mtx)
{
_cmsMutexPluginChunkType* ptr = (_cmsMutexPluginChunkType*) _cmsContextGetClientChunk(ContextID, MutexPlugin);
if (ptr ->DestroyMutexPtr != NULL) {
ptr ->DestroyMutexPtr(ContextID, mtx);
}
}
cmsBool CMSEXPORT _cmsLockMutex(cmsContext ContextID, void* mtx)
{
_cmsMutexPluginChunkType* ptr = (_cmsMutexPluginChunkType*) _cmsContextGetClientChunk(ContextID, MutexPlugin);
if (ptr ->LockMutexPtr == NULL) return TRUE;
return ptr ->LockMutexPtr(ContextID, mtx);
}
void CMSEXPORT _cmsUnlockMutex(cmsContext ContextID, void* mtx)
{
_cmsMutexPluginChunkType* ptr = (_cmsMutexPluginChunkType*) _cmsContextGetClientChunk(ContextID, MutexPlugin);
if (ptr ->UnlockMutexPtr != NULL) {
ptr ->UnlockMutexPtr(ContextID, mtx);
}
}