diff --git a/MagickCore/cache-private.h b/MagickCore/cache-private.h
index 5612e34..efdd39a 100644
--- a/MagickCore/cache-private.h
+++ b/MagickCore/cache-private.h
@@ -217,11 +217,13 @@
*GetVirtualPixelsNexus(const Cache,NexusInfo *);
extern MagickPrivate const void
+ *AcquirePixelCachePixels(const Image *,MagickSizeType *,ExceptionInfo *),
*GetVirtualMetacontentFromNexus(const Cache,NexusInfo *);
extern MagickPrivate MagickBooleanType
CacheComponentGenesis(void),
- SyncAuthenticPixelCacheNexus(Image *,NexusInfo *,ExceptionInfo *);
+ SyncAuthenticPixelCacheNexus(Image *,NexusInfo *,ExceptionInfo *),
+ SyncImagePixelCache(Image *,ExceptionInfo *);
extern MagickPrivate MagickSizeType
GetPixelCacheNexusExtent(const Cache,NexusInfo *);
@@ -240,10 +242,15 @@
extern MagickPrivate size_t
GetPixelCacheChannels(const Cache);
+extern MagickPrivate VirtualPixelMethod
+ GetPixelCacheVirtualMethod(const Image *),
+ SetPixelCacheVirtualMethod(const Image *,const VirtualPixelMethod);
+
extern MagickPrivate void
CacheComponentTerminus(void),
ClonePixelCacheMethods(Cache,const Cache),
*GetPixelCacheNexusMetacontent(const Cache,NexusInfo *),
+ *GetPixelCachePixels(Image *,MagickSizeType *,ExceptionInfo *),
GetPixelCacheTileSize(const Image *,size_t *,size_t *),
GetPixelCacheMethods(CacheMethods *),
SetPixelCacheMethods(Cache,CacheMethods *);