Merge from Artifex branchlcms2.6rc0

2 files changed, 85 insertions, 18 deletions

diff --git a/include/lcms2.h b/include/lcms2.h
index c801409..c993a4b 100644
--- a/include/lcms2.h
+++ b/include/lcms2.h
@@ -23,7 +23,7 @@
 //
 //---------------------------------------------------------------------------------
 //
-// Version 2.6b
+// Version 2.6
 //
 
 #ifndef _lcms2_H
@@ -55,6 +55,10 @@
 // Uncomment to get rid of the tables for "half" float support
 // #define CMS_NO_HALF_SUPPORT 1
 
+// Uncomment to get cmsContext legacy behavior: just a void pointer passed through. 
+// DON'T USE UNLESS STRICTLY NECESSARY!
+// #define CMS_CONTEXT_IN_LEGACY_MODE 1
+
 // ********** End of configuration toggles ******************************
 
 // Needed for streams
@@ -173,10 +177,6 @@ typedef int                  cmsBool;
 // Try to detect big endian platforms. This list can be endless, so only some checks are performed over here.
 // you can pass this toggle to the compiler by using -DCMS_USE_BIG_ENDIAN or something similar
 
-#if defined(_HOST_BIG_ENDIAN) || defined(__BIG_ENDIAN__) || defined(WORDS_BIGENDIAN)
-#   define CMS_USE_BIG_ENDIAN      1
-#endif
-
 #if defined(__sgi__) || defined(__sgi) || defined(sparc)
 #   define CMS_USE_BIG_ENDIAN      1
 #endif
@@ -193,14 +193,18 @@ typedef int                  cmsBool;
 
 #if defined(__powerpc__) || defined(__ppc__) || defined(TARGET_CPU_PPC)
 #   define CMS_USE_BIG_ENDIAN   1
-#   if defined (__GNUC__) 
-#           if ( __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__)
-#                // Don't use big endian for PowerPC little endian mode
+#   if defined (__GNUC__) && defined(__BYTE_ORDER) && defined(__LITTLE_ENDIAN)
+#       if __BYTE_ORDER  == __LITTLE_ENDIAN
+//               // Don't use big endian for PowerPC little endian mode
 #                undef CMS_USE_BIG_ENDIAN
-#           endif
+#       endif
 #   endif
 #endif
 
+// WORDS_BIGENDIAN takes precedence
+#if defined(_HOST_BIG_ENDIAN) || defined(__BIG_ENDIAN__) || defined(WORDS_BIGENDIAN)
+#   define CMS_USE_BIG_ENDIAN      1
+#endif
 
 #ifdef macintosh
 # ifdef __BIG_ENDIAN__
@@ -624,7 +628,6 @@ typedef struct {
 
 // Little CMS specific typedefs
 
-typedef void* cmsContext;              // Context identifier for multithreaded environments
 typedef void* cmsHANDLE ;              // Generic handle
 typedef void* cmsHPROFILE;             // Opaque typedefs to hide internals
 typedef void* cmsHTRANSFORM;
@@ -994,11 +997,29 @@ typedef struct {
 CMSAPI int               CMSEXPORT cmsstrcasecmp(const char* s1, const char* s2);
 CMSAPI long int          CMSEXPORT cmsfilelength(FILE* f);
 
-// Plug-In registering  ---------------------------------------------------------------------------------------------------
+
+// Context handling --------------------------------------------------------------------------------------------------------
+
+// Each context holds its owns globals and its own plug-ins. There is a global context with the id = 0 for lecacy compatibility
+// though using the global context is not recomended. Proper context handling makes lcms more thread-safe.
+
+#ifdef CMS_CONTEXT_IN_LEGACY_MODE
+    typedef void* cmsContext;
+#else
+    typedef struct _cmsContext_struct* cmsContext;
+#endif
+
+CMSAPI cmsContext       CMSEXPORT cmsCreateContext(void* Plugin, void* UserData);
+CMSAPI void             CMSEXPORT cmsDeleteContext(cmsContext ContexID);
+CMSAPI cmsContext       CMSEXPORT cmsDupContext(cmsContext ContextID, void* NewUserData);
+CMSAPI void*            CMSEXPORT cmsGetContextUserData(cmsContext ContextID);
+
+// Plug-In registering  --------------------------------------------------------------------------------------------------
 
 CMSAPI cmsBool           CMSEXPORT cmsPlugin(void* Plugin);
 CMSAPI cmsBool           CMSEXPORT cmsPluginTHR(cmsContext ContextID, void* Plugin);
 CMSAPI void              CMSEXPORT cmsUnregisterPlugins(void);
+CMSAPI void              CMSEXPORT cmsUnregisterPluginsTHR(cmsContext ContextID);
 
 // Error logging ----------------------------------------------------------------------------------------------------------
 
@@ -1035,6 +1056,7 @@ typedef void  (* cmsLogErrorHandlerFunction)(cmsContext ContextID, cmsUInt32Numb
 
 // Allows user to set any specific logger
 CMSAPI void              CMSEXPORT cmsSetLogErrorHandler(cmsLogErrorHandlerFunction Fn);
+CMSAPI void              CMSEXPORT cmsSetLogErrorHandlerTHR(cmsContext ContextID, cmsLogErrorHandlerFunction Fn);
 
 // Conversions --------------------------------------------------------------------------------------------------------------
 
@@ -1587,6 +1609,7 @@ CMSAPI cmsHPROFILE      CMSEXPORT cmsTransform2DeviceLink(cmsHTRANSFORM hTransfo
 
 // Call with NULL as parameters to get the intent count
 CMSAPI cmsUInt32Number  CMSEXPORT cmsGetSupportedIntents(cmsUInt32Number nMax, cmsUInt32Number* Codes, char** Descriptions);
+CMSAPI cmsUInt32Number  CMSEXPORT cmsGetSupportedIntentsTHR(cmsContext ContextID, cmsUInt32Number nMax, cmsUInt32Number* Codes, char** Descriptions);
 
 // Flags
 
@@ -1698,11 +1721,22 @@ CMSAPI void             CMSEXPORT cmsDoTransformStride(cmsHTRANSFORM Transform,
                                                  cmsUInt32Number Stride);
 
 
-CMSAPI void             CMSEXPORT cmsSetAlarmCodes(cmsUInt16Number NewAlarm[cmsMAXCHANNELS]);
+CMSAPI void             CMSEXPORT cmsSetAlarmCodes(const cmsUInt16Number NewAlarm[cmsMAXCHANNELS]);
 CMSAPI void             CMSEXPORT cmsGetAlarmCodes(cmsUInt16Number NewAlarm[cmsMAXCHANNELS]);
 
+
+CMSAPI void             CMSEXPORT cmsSetAlarmCodesTHR(cmsContext ContextID, 
+                                                          const cmsUInt16Number AlarmCodes[cmsMAXCHANNELS]);
+CMSAPI void             CMSEXPORT cmsGetAlarmCodesTHR(cmsContext ContextID, 
+                                                          cmsUInt16Number AlarmCodes[cmsMAXCHANNELS]);
+
+
+
 // Adaptation state for absolute colorimetric intent
 CMSAPI cmsFloat64Number CMSEXPORT cmsSetAdaptationState(cmsFloat64Number d);
+CMSAPI cmsFloat64Number CMSEXPORT cmsSetAdaptationStateTHR(cmsContext ContextID, cmsFloat64Number d);
+
+
 
 // Grab the ContextID from an open transform. Returns NULL if a NULL transform is passed
 CMSAPI cmsContext       CMSEXPORT cmsGetTransformContextID(cmsHTRANSFORM hTransform);
diff --git a/include/lcms2_plugin.h b/include/lcms2_plugin.h
index 10e61cb..0c95d1f 100644
--- a/include/lcms2_plugin.h
+++ b/include/lcms2_plugin.h
@@ -202,6 +202,7 @@ typedef void*    (* _cmsDupUserDataFn)(cmsContext ContextID, const void* Data);
 #define cmsPluginMultiProcessElementSig      0x6D706548     // 'mpeH'
 #define cmsPluginOptimizationSig             0x6F707448     // 'optH'
 #define cmsPluginTransformSig                0x7A666D48     // 'xfmH'
+#define cmsPluginMutexSig                    0x6D747A48     // 'mtxH'
 
 typedef struct _cmsPluginBaseStruct {
 
@@ -218,19 +219,28 @@ typedef struct _cmsPluginBaseStruct {
 //----------------------------------------------------------------------------------------------------------
 
 // Memory handler. Each new plug-in type replaces current behaviour
+
+typedef void* (* _cmsMallocFnPtrType)(cmsContext ContextID, cmsUInt32Number size); 
+typedef void  (* _cmsFreeFnPtrType)(cmsContext ContextID, void *Ptr);
+typedef void* (* _cmsReallocFnPtrType)(cmsContext ContextID, void* Ptr, cmsUInt32Number NewSize);
+
+typedef void* (* _cmsMalloZerocFnPtrType)(cmsContext ContextID, cmsUInt32Number size); 
+typedef void* (* _cmsCallocFnPtrType)(cmsContext ContextID, cmsUInt32Number num, cmsUInt32Number size);
+typedef void* (* _cmsDupFnPtrType)(cmsContext ContextID, const void* Org, cmsUInt32Number size);
+
 typedef struct {
 
         cmsPluginBase base;
 
         // Required
-        void * (* MallocPtr)(cmsContext ContextID, cmsUInt32Number size);
-        void   (* FreePtr)(cmsContext ContextID, void *Ptr);
-        void * (* ReallocPtr)(cmsContext ContextID, void* Ptr, cmsUInt32Number NewSize);
+        _cmsMallocFnPtrType  MallocPtr;
+        _cmsFreeFnPtrType    FreePtr;
+        _cmsReallocFnPtrType ReallocPtr;
 
         // Optional
-        void * (* MallocZeroPtr)(cmsContext ContextID, cmsUInt32Number size);
-        void * (* CallocPtr)(cmsContext ContextID, cmsUInt32Number num, cmsUInt32Number size);
-        void * (* DupPtr)(cmsContext ContextID, const void* Org, cmsUInt32Number size);
+       _cmsMalloZerocFnPtrType MallocZeroPtr;
+       _cmsCallocFnPtrType     CallocPtr;
+       _cmsDupFnPtrType        DupPtr;
 
 } cmsPluginMemHandler;
 
@@ -593,6 +603,29 @@ typedef struct {
 
 }  cmsPluginTransform;
 
+//----------------------------------------------------------------------------------------------------------
+// Mutex 
+
+typedef void*    (* _cmsCreateMutexFnPtrType)(cmsContext ContextID);
+typedef void     (* _cmsDestroyMutexFnPtrType)(cmsContext ContextID, void* mtx);
+typedef cmsBool  (* _cmsLockMutexFnPtrType)(cmsContext ContextID, void* mtx);
+typedef void     (* _cmsUnlockMutexFnPtrType)(cmsContext ContextID, void* mtx);
+
+typedef struct {
+      cmsPluginBase     base;
+
+     _cmsCreateMutexFnPtrType  CreateMutexPtr;
+     _cmsDestroyMutexFnPtrType DestroyMutexPtr;
+     _cmsLockMutexFnPtrType    LockMutexPtr;
+     _cmsUnlockMutexFnPtrType  UnlockMutexPtr;
+
+}  cmsPluginMutex;
+
+CMSAPI void*   CMSEXPORT _cmsCreateMutex(cmsContext ContextID);
+CMSAPI void    CMSEXPORT _cmsDestroyMutex(cmsContext ContextID, void* mtx);
+CMSAPI cmsBool CMSEXPORT _cmsLockMutex(cmsContext ContextID, void* mtx);
+CMSAPI void    CMSEXPORT _cmsUnlockMutex(cmsContext ContextID, void* mtx);
+
 
 #ifndef CMS_USE_CPP_API
 #   ifdef __cplusplus