我正在加载图像，并且内存增加了大约 10 倍于文件大小。
这是下面代码的输出
加载最初为 513kb 的文件 img_6.jpg
图像 img_6.jpg 的内存为 63704kb (124.12x)
谢谢！
这是我用来加载的代码
string filename = "img_6.jpg";
Directory.SetCurrentDirectory(@"C:\Users\Admin\Desktop\isolated images");
Helpers.membefore(filename);
BitmapImage bitmap = new BitmapImage();
//using (Stream stream = new FileStream(filepath, FileMode.Open))
{
bitmap.BeginInit();
//bitmap.StreamSource = stream;
bitmap.CreateOptions = BitmapCreateOptions.IgnoreImageCache;
bitmap.CacheOption = BitmapCacheOption.OnLoad;
bitmap.UriSource = new Uri(filename, UriKind.Relative);
bitmap.EndInit();
}
ImageBrush ib = new ImageBrush() { ImageSource = bitmap };
Helpers.memafter(ib);
这些是内存日志助手
public static void memafter(object result)
{
//debugging
if (result.GetType() == typeof(ImageBrush) && (result as ImageBrush).ImageSource != null)
{
var after = Process.GetCurrentProcess().VirtualMemorySize64;
string factor = ((double)(after - before) / (double)len).ToString("N") ;
string source = (result as ImageBrush).ImageSource.ToString();
Console.WriteLine(String.Format("Memory for image {0} is {1}kb ({2}x)",
source,
(after - before) / 1024,
factor.ToString()));
string s = result.ToString();
}
}
public static void membefore(string xaml)
{
FileInfo fi = new FileInfo(xaml);
len = fi.Length;
Console.WriteLine(string.Format("Loading file {0} with originally {1}kb", xaml, fi.Length / 1024));
if (xaml.Contains("ico") || xaml.Contains("jpg") || xaml.Contains("bmp") || xaml.Contains("png"))
{
before = Process.GetCurrentProcess().VirtualMemorySize64;
}
}
private static long len = 0;
static long before = 0;