From e74958b76cd8259bb5153f1cf1a40afd363f3bb2 Mon Sep 17 00:00:00 2001
From: Cristy <urban-warrior@imagemagick.org>
Date: Sat, 17 Mar 2018 15:26:13 -0400
Subject: [PATCH] ...

---
 MagickCore/cache.c          | 21 +++++++--------------
 MagickCore/image.c          |  6 +++++-
 MagickCore/thread-private.h |  2 +-
 3 files changed, 13 insertions(+), 16 deletions(-)

diff --git a/MagickCore/cache.c b/MagickCore/cache.c
index eeebb851e..928607e54 100644
--- a/MagickCore/cache.c
+++ b/MagickCore/cache.c
@@ -540,10 +540,8 @@ static MagickBooleanType ClonePixelCacheRepository(
 #define MaxCacheThreads  ((size_t) GetMagickResourceLimit(ThreadResource))
 #define cache_number_threads(source,destination,chunk,multithreaded) \
   num_threads((multithreaded) == 0 ? 1 : \
-    (((source)->type != MemoryCache) && \
-     ((source)->type != MapCache)) || \
-    (((destination)->type != MemoryCache) && \
-     ((destination)->type != MapCache)) ? \
+    (((source)->type != MemoryCache) && ((source)->type != MapCache)) || \
+    (((destination)->type != MemoryCache) && ((destination)->type != MapCache)) ? \
     MagickMax(MagickMin(GetMagickResourceLimit(ThreadResource),2),1) : \
     MagickMax(MagickMin((ssize_t) GetMagickResourceLimit(ThreadResource),(ssize_t) (chunk)/256),1))
 
@@ -647,8 +645,7 @@ static MagickBooleanType ClonePixelCacheRepository(
       clone_nexus[id],exception);
     if (pixels == (Quantum *) NULL)
       continue;
-    (void) memset(clone_nexus[id]->pixels,0,(size_t)
-      clone_nexus[id]->length);
+    (void) memset(clone_nexus[id]->pixels,0,(size_t) clone_nexus[id]->length);
     if (optimize != MagickFalse)
       (void) memcpy(clone_nexus[id]->pixels,cache_nexus[id]->pixels,length*
         sizeof(Quantum));
@@ -1783,10 +1780,8 @@ MagickExport MagickBooleanType GetOneAuthenticPixel(Image *image,
   cache_info=(CacheInfo *) image->cache;
   assert(cache_info->signature == MagickCoreSignature);
   (void) memset(pixel,0,MaxPixelChannels*sizeof(*pixel));
-  if (cache_info->methods.get_one_authentic_pixel_from_handler !=
-       (GetOneAuthenticPixelFromHandler) NULL)
-    return(cache_info->methods.get_one_authentic_pixel_from_handler(image,x,y,
-      pixel,exception));
+  if (cache_info->methods.get_one_authentic_pixel_from_handler != (GetOneAuthenticPixelFromHandler) NULL)
+    return(cache_info->methods.get_one_authentic_pixel_from_handler(image,x,y,pixel,exception));
   q=GetAuthenticPixelsCache(image,x,y,1UL,1UL,exception);
   return(CopyPixel(image,q,pixel));
 }
@@ -2746,8 +2741,7 @@ MagickPrivate const Quantum *GetVirtualPixelsFromNexus(const Image *image,
                 CacheError,"UnableToGetCacheNexus","`%s'",image->filename);
               return((const Quantum *) NULL);
             }
-          (void) memset(virtual_metacontent,0,
-            cache_info->metacontent_extent);
+          (void) memset(virtual_metacontent,0,cache_info->metacontent_extent);
         }
       switch (virtual_pixel_method)
       {
@@ -4759,8 +4753,7 @@ static inline MagickBooleanType AcquireCacheNexusPixels(
       nexus_info->cache=(Quantum *) MagickAssumeAligned(AcquireAlignedMemory(1,
         (size_t) nexus_info->length));
       if (nexus_info->cache != (Quantum *) NULL)
-        (void) memset(nexus_info->cache,0,(size_t)
-          nexus_info->length);
+        (void) memset(nexus_info->cache,0,(size_t) nexus_info->length);
     }
   else
     {
diff --git a/MagickCore/image.c b/MagickCore/image.c
index 3d42f6757..1f4e6eaed 100644
--- a/MagickCore/image.c
+++ b/MagickCore/image.c
@@ -2242,6 +2242,10 @@ MagickExport MagickBooleanType ResetImagePixels(Image *image,
   */
   status=MagickTrue;
   image_view=AcquireAuthenticCacheView(image,exception);
+#if defined(MAGICKCORE_OPENMP_SUPPORT)
+  #pragma omp parallel for schedule(static,4) shared(status) \
+    magick_number_threads(image,image,image->rows,1)
+#endif
   for (y=0; y < (ssize_t) image->rows; y++)
   {
     register Quantum
@@ -2260,7 +2264,7 @@ MagickExport MagickBooleanType ResetImagePixels(Image *image,
       }
     for (x=0; x < (ssize_t) image->columns; x++)
     {
-      memset(q,0,GetPixelChannels(image)*sizeof(Quantum));
+      (void) memset(q,0,GetPixelChannels(image)*sizeof(Quantum));
       q+=GetPixelChannels(image);
     }
     if (SyncCacheViewAuthenticPixels(image_view,exception) == MagickFalse)
diff --git a/MagickCore/thread-private.h b/MagickCore/thread-private.h
index bdd7be1fb..a4b757c78 100644
--- a/MagickCore/thread-private.h
+++ b/MagickCore/thread-private.h
@@ -38,7 +38,7 @@ extern "C" {
     ((GetImagePixelCacheType(destination) != MemoryCache) && \
      (GetImagePixelCacheType(destination) != MapCache)) ? \
     MagickMax(MagickMin(GetMagickResourceLimit(ThreadResource),2),1) : \
-    MagickMax(MagickMin((ssize_t) GetMagickResourceLimit(ThreadResource),(ssize_t) (chunk)/64),1))
+    MagickMax(MagickMin((ssize_t) GetMagickResourceLimit(ThreadResource),(ssize_t) (chunk)/256),1))
 
 #if defined(__clang__) || (__GNUC__ > 3) || ((__GNUC__ == 3) && (__GNUC_MINOR__ > 10))
 #define MagickCachePrefetch(address,mode,locality) \
-- 
2.40.0