public image_sol(string filename, SharpDX.Direct2D1.RenderTarget d2d_render_target)
{
path = filename;
System.Security.Cryptography.RandomNumberGenerator rng = System.Security.Cryptography.RandomNumberGenerator.Create();
byte[] arr = new byte[16];
rng.GetNonZeroBytes(arr);
rand = new Random(BitConverter.ToInt32(arr, 0));
rng.Dispose();
points_count = 0;
try
{
using (FileStream fs = new FileStream(path, FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
{
BitmapFrame bmpFrame = BitmapFrame.Create(fs);
width = bmpFrame.PixelWidth;
height = bmpFrame.PixelHeight;
}
}
catch
{
width = 200;
height = 100;
path = "invalid";
}
bitmap = LoadFromFile(d2d_render_target, path);
ipts = new List <IPoint>();
}
protected override void Dispose(bool disposing)
{
if (disposing)
{
_rng.Dispose();
}
base.Dispose(disposing);
}
private int SecureRandomInt(int min, int max)
{
secureRand = System.Security.Cryptography.RandomNumberGenerator.Create();
//Store bytes of an integer
byte[] bytes = new byte[4];
//Generate bytes through the cryptographically secure RNG
secureRand.GetBytes(bytes);
//Convert the bytes we got to UInt32
UInt32 scale = BitConverter.ToUInt32(bytes, 0);
secureRand.Dispose();
//Calculate the number between min and max inclusive
return((int)(min + (max - min) * (scale / (uint.MaxValue + 1.0))));
}
public void FillBuffer()
{
if (IsLinux)
{
FileStream fs = File.OpenRead("/dev/random");
for (int i = 0; i < bufferSize; i++)
{
buffer[i] = (byte)fs.ReadByte();
}
fs.Close();
}
else
{
if (rng == null)
{
rng = System.Security.Cryptography.RandomNumberGenerator.Create();
}
rng.GetBytes(buffer);
rng.Dispose();
}
bufferIndex = 0;
}