//Color coding
private void colorCodingToolStripMenuItem_Click(object sender, EventArgs e)
{
if (globalFrmEncode == null)
{
globalFrmEncode = new FrmEncode();
globalFrmEncode.MdiParent = this;
globalFrmEncode.Show();
}
}
public void Plot(ref byte[] fileBufferArray, int fileSize, float[] frequency, int offset, FrmEncode frmEncode, FrmMain frmMain) {
int columns = pictureBox1.Width;
int rows = pictureBox1.Height;
int position = offset;
byte currentByte;
globalFrmMain = frmMain;
globalOffset = offset;
globalFileSize = fileSize;
globalColumns = columns;
Bitmap b = new Bitmap(columns, rows, PixelFormat.Format24bppRgb);
BitmapData bmd = b.LockBits(new Rectangle(0, 0, columns, rows), ImageLockMode.ReadWrite, b.PixelFormat); //PixelFormat.Format24bppRgb
// The unsafe code block is necessary to operate directly on the image
// memory vs. setpixel. About 250-300x faster
unsafe {
for (int j = 0; j < rows; j++) {
byte* row = (byte*)bmd.Scan0 + (j * bmd.Stride);
for (int i = 0; i < columns; i++) {
currentByte = 0;
if (position < fileSize) {
currentByte = fileBufferArray[j * columns + i + offset];
position++;
//color coding
if (FrmEncode.colorMode == 0) { //normal
row[i * 3 + 1] = currentByte;
} else if (FrmEncode.colorMode == 1) {//ASCII
if ((currentByte >= 32) && (currentByte <= 127)) {
row[i * 3] = 255; //blue
} else {
row[i * 3] = 32; //gray
row[i * 3 + 1] = 32;
row[i * 3 + 2] = 32;
}
} else if (FrmEncode.colorMode == 2) {//Frequency
if (frequency[currentByte]>.375){
row[i * 3+2] = 255; //red
}
if (frequency[currentByte] <.01) {
row[i * 3] = 255; //blue
}
if ((frequency[currentByte] >= .01)&&(frequency[currentByte]<=.375))
{
row[i * 3] = 64; //gray
row[i * 3 + 1] = 64;
row[i * 3 + 2] = 64;
}
}
if (FrmEncode.invert == 1) {
row[i * 3] = (byte)(255 - row[i * 3]);
row[i * 3 + 1] = (byte)(255 - row[i * 3+1]);
row[i * 3 + 2] = (byte)(255 - row[i * 3+2]);
}
}
}
}
b.UnlockBits(bmd);
pictureBox1.Image = b;
// Invert(b);
} //unsafe
}
public void Plot(ref byte[] fileBufferArray, int fileSize, float[] frequency, int offset, FrmEncode frmEncode, FrmMain frmMain)
{
int columns = pictureBox1.Width;
int rows = pictureBox1.Height;
int position = offset;
byte currentByte;
globalFrmMain = frmMain;
globalOffset = offset;
globalFileSize = fileSize;
globalColumns = columns;
Bitmap b = new Bitmap(columns, rows, PixelFormat.Format24bppRgb);
BitmapData bmd = b.LockBits(new Rectangle(0, 0, columns, rows), ImageLockMode.ReadWrite, b.PixelFormat); //PixelFormat.Format24bppRgb
// The unsafe code block is necessary to operate directly on the image
// memory vs. setpixel. About 250-300x faster
unsafe {
for (int j = 0; j < rows; j++)
{
byte *row = (byte *)bmd.Scan0 + (j * bmd.Stride);
for (int i = 0; i < columns; i++)
{
currentByte = 0;
if (position < fileSize)
{
currentByte = fileBufferArray[j * columns + i + offset];
position++;
//color coding
if (FrmEncode.colorMode == 0) //normal
{
row[i * 3 + 1] = currentByte;
}
else if (FrmEncode.colorMode == 1) //ASCII
{
if ((currentByte >= 32) && (currentByte <= 127))
{
row[i * 3] = 255; //blue
}
else
{
row[i * 3] = 32; //gray
row[i * 3 + 1] = 32;
row[i * 3 + 2] = 32;
}
}
else if (FrmEncode.colorMode == 2) //Frequency
{
if (frequency[currentByte] > .375)
{
row[i * 3 + 2] = 255; //red
}
if (frequency[currentByte] < .01)
{
row[i * 3] = 255; //blue
}
if ((frequency[currentByte] >= .01) && (frequency[currentByte] <= .375))
{
row[i * 3] = 64; //gray
row[i * 3 + 1] = 64;
row[i * 3 + 2] = 64;
}
}
if (FrmEncode.invert == 1)
{
row[i * 3] = (byte)(255 - row[i * 3]);
row[i * 3 + 1] = (byte)(255 - row[i * 3 + 1]);
row[i * 3 + 2] = (byte)(255 - row[i * 3 + 2]);
}
}
}
}
b.UnlockBits(bmd);
pictureBox1.Image = b;
// Invert(b);
} //unsafe
}
//Color coding
private void colorCodingToolStripMenuItem_Click(object sender, EventArgs e)
{
if (globalFrmEncode == null)
{
globalFrmEncode = new FrmEncode();
globalFrmEncode.MdiParent = this;
globalFrmEncode.Show();
}
}
