diff options
Diffstat (limited to 'third_party/lcms/src/cmserr.c')
| -rw-r--r-- | third_party/lcms/src/cmserr.c | 318 |
1 files changed, 65 insertions, 253 deletions
diff --git a/third_party/lcms/src/cmserr.c b/third_party/lcms/src/cmserr.c index f9adc3824a..3c3848b2a2 100644 --- a/third_party/lcms/src/cmserr.c +++ b/third_party/lcms/src/cmserr.c @@ -1,7 +1,7 @@ //--------------------------------------------------------------------------------- // // Little Color Management System -// Copyright (c) 1998-2012 Marti Maria Saguer +// Copyright (c) 1998-2016 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"), @@ -25,6 +25,15 @@ #include "lcms2_internal.h" +#include "core/fxcrt/fx_memory.h" +#include "core/fxcrt/fx_system.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. @@ -58,123 +67,59 @@ long int CMSEXPORT cmsfilelength(FILE* f) return n; } -#if 0 -// 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 -// 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 -// 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. - -cmsBool _cmsRegisterMemHandlerPlugin(cmsContext ContextID, cmsPluginBase* Plugin); - -// ********************************************************************************* - -// 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) +cmsBool _cmsRegisterMemHandlerPlugin(cmsContext ContextID, cmsPluginBase* Plugin) { - if (size > MAX_MEMORY_FOR_ALLOC) return NULL; // Never allow over maximum - - return (void*) malloc(size); + return TRUE; +} - cmsUNUSED_PARAMETER(ContextID); +// Generic allocate +void* CMSEXPORT _cmsMalloc(cmsContext ContextID, cmsUInt32Number size) +{ + return FXMEM_DefaultAlloc(size, 1); } // Generic allocate & zero -static -void* _cmsMallocZeroDefaultFn(cmsContext ContextID, cmsUInt32Number size) +void* CMSEXPORT _cmsMallocZero(cmsContext ContextID, cmsUInt32Number size) { - void *pt = _cmsMalloc(ContextID, size); - if (pt == NULL) return NULL; - - memset(pt, 0, size); - return pt; + void* p = FXMEM_DefaultAlloc(size, 1); + if (p) memset(p, 0, size); + return p; } - -// The default free function. The only check proformed is against NULL pointers -static -void _cmsFreeDefaultFn(cmsContext ContextID, void *Ptr) +// Generic calloc +void* CMSEXPORT _cmsCalloc(cmsContext ContextID, cmsUInt32Number num, cmsUInt32Number size) { - // free(NULL) is defined a no-op by C99, therefore it is safe to - // avoid the check, but it is here just in case... - - if (Ptr) free(Ptr); + cmsUInt32Number total = num * size; + if (total == 0 || total / size != num || total >= 512 * 1024 * 1024) + return NULL; - cmsUNUSED_PARAMETER(ContextID); + return _cmsMallocZero(ContextID, num * size); } -// 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) +// Generic reallocate +void* CMSEXPORT _cmsRealloc(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); + return FXMEM_DefaultRealloc(Ptr, size, 1); } - -// 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) +// Generic free memory +void CMSEXPORT _cmsFree(cmsContext ContextID, void* Ptr) { - cmsUInt32Number Total = num * size; - - // Preserve calloc behaviour - if (Total == 0) return NULL; - - // Safe check for overflow. - if (num >= UINT_MAX / size) return NULL; - - // Check for overflow - if (Total < num || Total < size) { - return NULL; - } - - if (Total > MAX_MEMORY_FOR_ALLOC) return NULL; // Never alloc over 512Mb - - return _cmsMallocZero(ContextID, Total); + if (Ptr != NULL) FXMEM_DefaultFree(Ptr, 0); } // Generic block duplication -static -void* _cmsDupDefaultFn(cmsContext ContextID, const void* Org, cmsUInt32Number size) +void* CMSEXPORT _cmsDupMem(cmsContext ContextID, const void* Org, cmsUInt32Number size) { - void* mem; - - 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; + void* p = FXMEM_DefaultAlloc(size, 1); + memmove(p, Org, size); + return p; } - -// Pointers to memory manager functions in Context0 -_cmsMemPluginChunkType _cmsMemPluginChunk = { _cmsMallocDefaultFn, _cmsMallocZeroDefaultFn, _cmsFreeDefaultFn, - _cmsReallocDefaultFn, _cmsCallocDefaultFn, _cmsDupDefaultFn +_cmsMemPluginChunkType _cmsMemPluginChunk = {_cmsMalloc, _cmsMallocZero, _cmsFree, + _cmsRealloc, _cmsCalloc, _cmsDupMem }; - -// Reset and duplicate memory manager void _cmsAllocMemPluginChunk(struct _cmsContext_struct* ctx, const struct _cmsContext_struct* src) { _cmsAssert(ctx != NULL); @@ -191,7 +136,6 @@ void _cmsAllocMemPluginChunk(struct _cmsContext_struct* ctx, const struct _cmsCo } } -// Auxiliar to fill memory management functions from plugin (or context 0 defaults) void _cmsInstallAllocFunctions(cmsPluginMemHandler* Plugin, _cmsMemPluginChunkType* ptr) { if (Plugin == NULL) { @@ -205,9 +149,9 @@ void _cmsInstallAllocFunctions(cmsPluginMemHandler* Plugin, _cmsMemPluginChunkTy ptr ->ReallocPtr = Plugin -> ReallocPtr; // Make sure we revert to defaults - ptr ->MallocZeroPtr= _cmsMallocZeroDefaultFn; - ptr ->CallocPtr = _cmsCallocDefaultFn; - ptr ->DupPtr = _cmsDupDefaultFn; + ptr ->MallocZeroPtr= _cmsMallocZero; + ptr ->CallocPtr = _cmsCalloc; + ptr ->DupPtr = _cmsDupMem; if (Plugin ->MallocZeroPtr != NULL) ptr ->MallocZeroPtr = Plugin -> MallocZeroPtr; if (Plugin ->CallocPtr != NULL) ptr ->CallocPtr = Plugin -> CallocPtr; @@ -216,138 +160,6 @@ void _cmsInstallAllocFunctions(cmsPluginMemHandler* Plugin, _cmsMemPluginChunkTy } } - -// Plug-in replacement entry -cmsBool _cmsRegisterMemHandlerPlugin(cmsContext ContextID, cmsPluginBase *Data) -{ - cmsPluginMemHandler* Plugin = (cmsPluginMemHandler*) Data; - _cmsMemPluginChunkType* ptr; - - // 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) { - - struct _cmsContext_struct* ctx = ( struct _cmsContext_struct*) ContextID; - - // Return to the default allocators - if (ContextID != NULL) { - ctx->chunks[MemPlugin] = (void*) &ctx->DefaultMemoryManager; - } - return TRUE; - } - - // Check for required callbacks - if (Plugin -> MallocPtr == NULL || - Plugin -> FreePtr == NULL || - Plugin -> ReallocPtr == NULL) return FALSE; - - // Set replacement functions - ptr = (_cmsMemPluginChunkType*) _cmsContextGetClientChunk(ContextID, MemPlugin); - if (ptr == NULL) - return FALSE; - - _cmsInstallAllocFunctions(Plugin, ptr); - return TRUE; -} -#else -#include "core/fxcrt/fx_memory.h" -#include "core/fxcrt/fx_system.h" - -cmsBool _cmsRegisterMemHandlerPlugin(cmsContext ContextID, cmsPluginBase* Plugin) -{ - return TRUE; -} - -// Generic allocate -void* CMSEXPORT _cmsMalloc(cmsContext ContextID, cmsUInt32Number size) -{ - return FXMEM_DefaultAlloc(size, 1); -} - -// Generic allocate & zero -void* CMSEXPORT _cmsMallocZero(cmsContext ContextID, cmsUInt32Number size) -{ - void* p = FXMEM_DefaultAlloc(size, 1); - if (p) memset(p, 0, size); - return p; -} - -// Generic calloc -void* CMSEXPORT _cmsCalloc(cmsContext ContextID, cmsUInt32Number num, cmsUInt32Number size) -{ - cmsUInt32Number total = num * size; - if (total == 0 || total / size != num || total >= 512 * 1024 * 1024) - return NULL; - - return _cmsMallocZero(ContextID, num * size); -} - -// Generic reallocate -void* CMSEXPORT _cmsRealloc(cmsContext ContextID, void* Ptr, cmsUInt32Number size) -{ - return FXMEM_DefaultRealloc(Ptr, size, 1); -} - -// Generic free memory -void CMSEXPORT _cmsFree(cmsContext ContextID, void* Ptr) -{ - if (Ptr != NULL) FXMEM_DefaultFree(Ptr, 0); -} - -// Generic block duplication -void* CMSEXPORT _cmsDupMem(cmsContext ContextID, const void* Org, cmsUInt32Number size) -{ - void* p = FXMEM_DefaultAlloc(size, 1); - memmove(p, Org, size); - return p; -} - -_cmsMemPluginChunkType _cmsMemPluginChunk = {_cmsMalloc, _cmsMallocZero, _cmsFree, - _cmsRealloc, _cmsCalloc, _cmsDupMem - }; - -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; - } -} - -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= _cmsMallocZero; - ptr ->CallocPtr = _cmsCalloc; - ptr ->DupPtr = _cmsDupMem; - - if (Plugin ->MallocZeroPtr != NULL) ptr ->MallocZeroPtr = Plugin -> MallocZeroPtr; - if (Plugin ->CallocPtr != NULL) ptr ->CallocPtr = Plugin -> CallocPtr; - if (Plugin ->DupPtr != NULL) ptr ->DupPtr = Plugin -> DupPtr; - - } -} -#endif - // ******************************************************************************************** // Sub allocation takes care of many pointers of small size. The memory allocated in @@ -458,7 +270,7 @@ void* _cmsSubAlloc(_cmsSubAllocator* sub, cmsUInt32Number size) void* _cmsSubAllocDup(_cmsSubAllocator* s, const void *ptr, cmsUInt32Number size) { void *NewPtr; - + // Dup of null pointer is also NULL if (ptr == NULL) return NULL; @@ -476,14 +288,14 @@ void* _cmsSubAllocDup(_cmsSubAllocator* s, const void *ptr, cmsUInt32Number size // Error logging ****************************************************************** -// There is no error handling at all. When a funtion fails, it returns proper value. +// 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 // 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 -// resources. It is the programmer's responsability to check each function return code +// 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 @@ -500,20 +312,20 @@ _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, +void _cmsAllocLogErrorChunk(struct _cmsContext_struct* ctx, const struct _cmsContext_struct* src) -{ +{ static _cmsLogErrorChunkType LogErrorChunk = { DefaultLogErrorHandlerFunction }; void* from; - + if (src != NULL) { - from = src ->chunks[Logger]; + from = src ->chunks[Logger]; } else { from = &LogErrorChunk; } - - ctx ->chunks[Logger] = _cmsSubAllocDup(ctx ->MemPool, from, sizeof(_cmsLogErrorChunkType)); + + ctx ->chunks[Logger] = _cmsSubAllocDup(ctx ->MemPool, from, sizeof(_cmsLogErrorChunkType)); } // The default error logger does nothing. @@ -545,7 +357,7 @@ void CMSEXPORT cmsSetLogErrorHandlerTHR(cmsContext ContextID, cmsLogErrorHandler // Change log error, legacy void CMSEXPORT cmsSetLogErrorHandler(cmsLogErrorHandlerFunction Fn) { - cmsSetLogErrorHandlerTHR(NULL, Fn); + cmsSetLogErrorHandlerTHR(NULL, Fn); } // Log an error @@ -565,7 +377,7 @@ void CMSEXPORT cmsSignalError(cmsContext ContextID, cmsUInt32Number ErrorCode, c lhg = (_cmsLogErrorChunkType*) _cmsContextGetClientChunk(ContextID, Logger); if (lhg ->LogErrorHandler) { lhg ->LogErrorHandler(ContextID, ErrorCode, Buffer); - } + } } // Utility function to print signatures @@ -591,13 +403,13 @@ void* defMtxCreate(cmsContext id) { _cmsMutex* ptr_mutex = (_cmsMutex*) _cmsMalloc(id, sizeof(_cmsMutex)); _cmsInitMutexPrimitive(ptr_mutex); - return (void*) ptr_mutex; + return (void*) ptr_mutex; } static void defMtxDestroy(cmsContext id, void* mtx) { - _cmsDestroyMutexPrimitive((_cmsMutex *) mtx); + _cmsDestroyMutexPrimitive((_cmsMutex *) mtx); _cmsFree(id, mtx); } @@ -605,14 +417,14 @@ static cmsBool defMtxLock(cmsContext id, void* mtx) { cmsUNUSED_PARAMETER(id); - return _cmsLockPrimitive((_cmsMutex *) mtx) == 0; + return _cmsLockPrimitive((_cmsMutex *) mtx) == 0; } static void defMtxUnlock(cmsContext id, void* mtx) { cmsUNUSED_PARAMETER(id); - _cmsUnlockPrimitive((_cmsMutex *) mtx); + _cmsUnlockPrimitive((_cmsMutex *) mtx); } @@ -621,20 +433,20 @@ void defMtxUnlock(cmsContext id, void* mtx) _cmsMutexPluginChunkType _cmsMutexPluginChunk = { defMtxCreate, defMtxDestroy, defMtxLock, defMtxUnlock }; // Allocate and init mutex container. -void _cmsAllocMutexPluginChunk(struct _cmsContext_struct* ctx, +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]; + from = src ->chunks[MutexPlugin]; } else { from = &MutexChunk; } - - ctx ->chunks[MutexPlugin] = _cmsSubAllocDup(ctx ->MemPool, from, sizeof(_cmsMutexPluginChunkType)); + + ctx ->chunks[MutexPlugin] = _cmsSubAllocDup(ctx ->MemPool, from, sizeof(_cmsMutexPluginChunkType)); } // Register new ways to transform @@ -646,15 +458,15 @@ cmsBool _cmsRegisterMutexPlugin(cmsContext ContextID, cmsPluginBase* Data) if (Data == NULL) { // No lock routines - ctx->CreateMutexPtr = NULL; - ctx->DestroyMutexPtr = NULL; + 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 || + if (Plugin ->CreateMutexPtr == NULL || Plugin ->DestroyMutexPtr == NULL || Plugin ->LockMutexPtr == NULL || Plugin ->UnlockMutexPtr == NULL) return FALSE; |