private void loadBackgroundImage(String filename)
{
if (File.Exists(filename))
{
Bitmap background = new Bitmap(filename);
Byte[] back_bmp = new Byte[background.Width * background.Height * 3];
BitmapArrayConversions.updatebitmapslow(background, back_bmp);
background_bmp = new Byte[global_variables.standard_width * global_variables.standard_height * 3];
int n = 0;
for (int y = 0; y < global_variables.standard_height; y++)
{
int yy = y * background.Height / global_variables.standard_height;
for (int x = 0; x < global_variables.standard_width; x++)
{
int xx = x * background.Width / global_variables.standard_width;
int n2 = ((yy * background.Width) + xx) * 3;
for (int c = 0; c < 3; c++)
{
background_bmp[n] = back_bmp[n2 + c];
n++;
}
}
}
}
}