WritePixelCacheRegion 3512 magick/cache.c   count=WritePixelCacheRegion(cache_info,extent,1,(const unsigned char *) "");
WritePixelCacheRegion 5300 magick/cache.c         count=WritePixelCacheRegion(cache_info,cache_info->offset+extent*
WritePixelCacheRegion 5465 magick/cache.c         count=WritePixelCacheRegion(cache_info,cache_info->offset+offset*