third_party/lcms/0027-changes-from-beginning-of-time.patch

diff --git a/third_party/lcms/src/cmscgats.c b/third_party/lcms/src/cmscgats.c
index a0c25c024..55f74ede8 100644
--- a/third_party/lcms/src/cmscgats.c
+++ b/third_party/lcms/src/cmscgats.c
@@ -38,7 +38,10 @@
 #define DEFAULT_DBL_FORMAT  "%.10g" // Double formatting
 
 #ifdef CMS_IS_WINDOWS_
-#    include <io.h>
+//sunliang.liu modified 2010426 for wince error
+# ifndef _WIN32_WCE
+#   include <io.h>
+# endif
 #    define DIR_CHAR    '\\'
 #else
 #    define DIR_CHAR    '/'
diff --git a/third_party/lcms/src/cmsgamma.c b/third_party/lcms/src/cmsgamma.c
index eb3dd881c..6e36cf462 100644
--- a/third_party/lcms/src/cmsgamma.c
+++ b/third_party/lcms/src/cmsgamma.c
@@ -749,14 +749,19 @@ void CMSEXPORT cmsFreeToneCurve(cmsToneCurve* Curve)
 {
     cmsContext ContextID;
 
-    if (Curve == NULL) return;
+    // added by Xiaochuan Liu
+    // Curve->InterpParams may be null
+    if (Curve == NULL || Curve->InterpParams == NULL) return;
 
     ContextID = Curve ->InterpParams->ContextID;
 
     _cmsFreeInterpParams(Curve ->InterpParams);
+    Curve ->InterpParams = NULL;
 
-    if (Curve -> Table16)
+    if (Curve -> Table16) {
         _cmsFree(ContextID, Curve ->Table16);
+        Curve ->Table16 = NULL;
+    }
 
     if (Curve ->Segments) {
 
@@ -766,20 +771,30 @@ void CMSEXPORT cmsFreeToneCurve(cmsToneCurve* Curve)
 
             if (Curve ->Segments[i].SampledPoints) {
                 _cmsFree(ContextID, Curve ->Segments[i].SampledPoints);
+                Curve ->Segments[i].SampledPoints = NULL;
             }
 
-            if (Curve ->SegInterp[i] != 0)
+            if (Curve ->SegInterp[i] != 0) {
                 _cmsFreeInterpParams(Curve->SegInterp[i]);
+                Curve->SegInterp[i] = NULL;
+            }
         }
 
         _cmsFree(ContextID, Curve ->Segments);
+        Curve ->Segments = NULL;
         _cmsFree(ContextID, Curve ->SegInterp);
+        Curve ->SegInterp = NULL;
     }
 
-    if (Curve -> Evals)
+    if (Curve -> Evals) {
         _cmsFree(ContextID, Curve -> Evals);
+        Curve -> Evals = NULL;
+    }
 
-    if (Curve) _cmsFree(ContextID, Curve);
+    if (Curve) {
+        _cmsFree(ContextID, Curve);
+        Curve = NULL;
+    }
 }
 
 // Utility function, free 3 gamma tables
@@ -799,7 +814,10 @@ void CMSEXPORT cmsFreeToneCurveTriple(cmsToneCurve* Curve[3])
 // Duplicate a gamma table
 cmsToneCurve* CMSEXPORT cmsDupToneCurve(const cmsToneCurve* In)
 {
-    if (In == NULL || In ->Segments == NULL || In ->Table16 == NULL) return NULL;
+    // Xiaochuan Liu
+    // fix openpdf bug(mantis id:0055683, google id:360198)
+    // the function CurveSetElemTypeFree in cmslut.c also needs to check pointer
+    if (In == NULL || In ->InterpParams == NULL || In ->Segments == NULL || In ->Table16 == NULL) return NULL;
 
     return  AllocateToneCurveStruct(In ->InterpParams ->ContextID, In ->nEntries, In ->nSegments, In ->Segments, In ->Table16);
 }
diff --git a/third_party/lcms/src/cmsio0.c b/third_party/lcms/src/cmsio0.c
index 1b026488d..cc5f89064 100644
--- a/third_party/lcms/src/cmsio0.c
+++ b/third_party/lcms/src/cmsio0.c
@@ -479,6 +479,14 @@ cmsIOHANDLER* CMSEXPORT cmsGetProfileIOhandler(cmsHPROFILE hProfile)
        return Icc->IOhandler;
 }
 
+#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)
 {
@@ -570,6 +578,14 @@ int _cmsSearchTag(_cmsICCPROFILE* Icc, cmsTagSignature sig, cmsBool lFollowLinks
 
         // 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;
         }
 
@@ -1363,6 +1379,12 @@ Error:
     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)
diff --git a/third_party/lcms/src/cmsio1.c b/third_party/lcms/src/cmsio1.c
index 364741c9e..4b12ae18e 100644
--- a/third_party/lcms/src/cmsio1.c
+++ b/third_party/lcms/src/cmsio1.c
@@ -201,7 +201,11 @@ cmsPipeline* BuildGrayInputMatrixPipeline(cmsHPROFILE hProfile)
     return Lut;
 
 Error:
-    cmsFreeToneCurve(GrayTRC);
+    // memory pointed by GrayTRC is not a new malloc memory, so don't free it here, 
+    // memory pointed by GrayTRC will be freed when hProfile is closed.
+    // test file :0047776_Pocket Medicine_ The Massachusetts General Hospital Handbook of Internal Medicine-2.pdf
+    // Xiaochuan Liu, 20140421
+    //cmsFreeToneCurve(GrayTRC);
     cmsPipelineFree(Lut);
     return NULL;
 }