// internal static void
public void calcFrequency(int fileLength, ref int[] byteCount, ref byte[] fileBufferArray, ref float[] frequency, FrmMain frmMainHandle)
{
FrmProgressBar fpb = new FrmProgressBar("calculating byte frequency...");
//Console.WriteLine(this.ParentForm.ToString());
fpb.MdiParent = frmMainHandle;
fpb.Start(0, fileLength);
fpb.Show();
for (int i = 0; i < fileLength; i++)
{
byteCount[fileBufferArray[i]]++;
if (i % 10000 == 0)
{
fpb.Update(i);
Application.DoEvents();
}
}
for (int j = 0; j <= 255; j++)
{
frequency[j] = (float)byteCount[j] / fileLength; //dividing int by int is integer division, must cast to float
//Console.WriteLine(j + " " + byteCount[j]+ " " + fileLength + " " + frequency[j]);
}
fpb.Hide();
}
//open file
private void openToolStripMenuItem_Click(object sender, EventArgs e)
{
int BytesRead = 0;
var ofd = new OpenFileDialog();
ofd.ShowDialog();
if (ofd.FileName != "")
{
FileStream fs = File.OpenRead(ofd.FileName);
var br = new BinaryReader(fs);
fileLength = (int)fs.Length; // This limits the maximum file size to ~2GB due to maxint
fileBufferArray = new byte[fileLength];
var fpb = new FrmProgressBar("loading file...");
fpb.MdiParent = this;
fpb.Start(0, fileLength);
fpb.Show();
while (BytesRead < fileLength)
{
fileBufferArray[BytesRead] = br.ReadByte();
if (BytesRead % 10000 == 0)
{
fpb.Update(BytesRead);
Application.DoEvents();
}
BytesRead++;
}
fpb.Close();
br.Close();
Text = "BinVis " + ofd.FileName;
//FrmFrequency.calcFrequency(fileLength, ref byteCount, ref fileBufferArray, ref frequency);
globalFrmFrequency.calcFrequency(fileLength, ref byteCount, ref fileBufferArray, ref frequency, this);
processMemory.Process(fileLength, ref fileBufferArray);
globalFrmNavigator.init(fileLength, ref fileBufferArray);
globalFrmNavigator.MdiParent = this;
globalFrmNavigator.Show();
}
}
//open file
private void openToolStripMenuItem_Click(object sender, EventArgs e)
{
int BytesRead = 0;
var ofd = new OpenFileDialog();
ofd.ShowDialog();
if (ofd.FileName != "")
{
FileStream fs = File.OpenRead(ofd.FileName);
var br = new BinaryReader(fs);
fileLength = (int) fs.Length; // This limits the maximum file size to ~2GB due to maxint
fileBufferArray = new byte[fileLength];
var fpb = new FrmProgressBar("loading file...");
fpb.MdiParent = this;
fpb.Start(0, fileLength);
fpb.Show();
while (BytesRead < fileLength)
{
fileBufferArray[BytesRead] = br.ReadByte();
if (BytesRead%10000 == 0)
{
fpb.Update(BytesRead);
Application.DoEvents();
}
BytesRead++;
}
fpb.Close();
br.Close();
Text = "BinVis " + ofd.FileName;
//FrmFrequency.calcFrequency(fileLength, ref byteCount, ref fileBufferArray, ref frequency);
globalFrmFrequency.calcFrequency(fileLength, ref byteCount, ref fileBufferArray, ref frequency, this);
processMemory.Process(fileLength, ref fileBufferArray);
globalFrmNavigator.init(fileLength, ref fileBufferArray);
globalFrmNavigator.MdiParent = this;
globalFrmNavigator.Show();
}
}
// internal static void
public void calcFrequency(int fileLength, ref int[] byteCount, ref byte[] fileBufferArray, ref float[] frequency, FrmMain frmMainHandle)
{
FrmProgressBar fpb = new FrmProgressBar("calculating byte frequency...");
//Console.WriteLine(this.ParentForm.ToString());
fpb.MdiParent = frmMainHandle;
fpb.Start(0, fileLength);
fpb.Show();
for (int i = 0; i < fileLength; i++) {
byteCount[fileBufferArray[i]]++;
if (i % 10000 == 0)
{
fpb.Update(i);
Application.DoEvents();
}
}
for (int j = 0; j <= 255; j++) {
frequency[j] = (float)byteCount[j] / fileLength; //dividing int by int is integer division, must cast to float
//Console.WriteLine(j + " " + byteCount[j]+ " " + fileLength + " " + frequency[j]);
}
fpb.Hide();
}
