public override Image ReadImageData(IPnmDataReader dr, int width, int height)
{
Image image;
try
{
Bitmap bitmap = new Bitmap(width, height, System.Drawing.Imaging.PixelFormat.Format24bppRgb);
System.Drawing.Imaging.BitmapData bitmapdata = bitmap.LockBits(new Rectangle(0, 0, width, height), System.Drawing.Imaging.ImageLockMode.WriteOnly, System.Drawing.Imaging.PixelFormat.Format24bppRgb);
byte[] data = new byte[height * bitmapdata.Stride];
for (int i = 0; i < height; i++)
{
dr.Read(data, i * bitmapdata.Stride, width * 3);
}
System.Runtime.InteropServices.Marshal.Copy(data, 0, bitmapdata.Scan0, data.Length);
bitmap.UnlockBits(bitmapdata);
image = bitmap;
}
catch
{
throw;
}
finally
{
dr.Close();
}
return(image);
}
public override Image ReadImageData(IPnmDataReader dr, int width, int height)
{
Image image;
try
{
int count = (dr is ASCIIDataReader) ? width : ((int)Math.Ceiling((double)(((double)width) / 8.0)));
Bitmap bitmap = new Bitmap(width, height, System.Drawing.Imaging.PixelFormat.Format8bppIndexed);
System.Drawing.Imaging.BitmapData bitmapdata = bitmap.LockBits(new Rectangle(0, 0, width, height), System.Drawing.Imaging.ImageLockMode.WriteOnly, System.Drawing.Imaging.PixelFormat.Format8bppIndexed);
System.Drawing.Imaging.ColorPalette palette = bitmap.Palette;
palette.Entries[0] = Color.Black;
palette.Entries[1] = Color.White;
bitmap.Palette = palette;
byte[] data = new byte[height * bitmapdata.Stride];
for (int i = 0; i < height; i++)
{
dr.Read(data, i * bitmapdata.Stride, count);
}
System.Runtime.InteropServices.Marshal.Copy(data, 0, bitmapdata.Scan0, data.Length);
bitmap.UnlockBits(bitmapdata);
image = bitmap;
}
catch
{
throw;
}
finally
{
dr.Close();
}
return(image);
}
public override Image ReadImageData(IPnmDataReader dr, int width, int height)
{
Image image;
try
{
Bitmap bitmap = new Bitmap(width, height, System.Drawing.Imaging.PixelFormat.Format8bppIndexed);
System.Drawing.Imaging.BitmapData bitmapdata = bitmap.LockBits(new Rectangle(0, 0, width, height), System.Drawing.Imaging.ImageLockMode.WriteOnly, System.Drawing.Imaging.PixelFormat.Format8bppIndexed);
System.Drawing.Imaging.ColorPalette palette = bitmap.Palette;
for (int i = 0; i < palette.Entries.Length; i++)
{
palette.Entries[i] = Color.FromArgb(i, i, i);
}
bitmap.Palette = palette;
byte[] data = new byte[height * bitmapdata.Stride];
for (int j = 0; j < height; j++)
{
dr.Read(data, j * bitmapdata.Stride, width);
}
System.Runtime.InteropServices.Marshal.Copy(data, 0, bitmapdata.Scan0, data.Length);
bitmap.UnlockBits(bitmapdata);
image = bitmap;
}
catch
{
throw;
}
finally
{
dr.Close();
}
return(image);
}
public static Image ReadPnm(Stream inputStream)
{
char ch;
string str;
string magicWord = ((char)inputStream.ReadByte()).ToString() + ((char)inputStream.ReadByte()).ToString();
inputStream.ReadByte();
PnmEncoding pNMEncoding = PnmFactory.GetPNMEncoding(magicWord);
IPnmDataReader iPNMDataReader = PnmFactory.GetIPNMDataReader(inputStream, pNMEncoding);
if (iPNMDataReader == null)
{
throw new Exception("Currently only Binary and ASCII encoding is supported");
}
IPnmReader iPNMReader = PnmFactory.GetIPNMReader(PnmFactory.GetPNMType(magicWord));
if (iPNMReader == null)
{
throw new Exception("Currently only PBM, PGM and PNM Image Types are supported");
}
do
{
str = iPNMDataReader.ReadLine();
if (str.Length == 0)
{
ch = '#';
}
else
{
ch = str.Substring(0, 1).ToCharArray(0, 1)[0];
}
}while (ch == '#');
string[] strArray = str.Split(new char[] { ' ' });
int width = int.Parse(strArray[0]);
int height = int.Parse(strArray[1]);
if (magicWord != "P1")
{
do
{
str = iPNMDataReader.ReadLine();
if (str.Length == 0)
{
ch = '#';
}
else
{
ch = str.Substring(0, 1).ToCharArray(0, 1)[0];
}
}while (ch == '#');
if (int.Parse(str) != 0xff)
{
Console.WriteLine("Warning, max value for pixels in this image is not 255");
}
}
return(iPNMReader.ReadImageData(iPNMDataReader, width, height));
}
public abstract Image ReadImageData(IPnmDataReader dr, int width, int height);
public override Image ReadImageData(IPnmDataReader dr, int width, int height)
{
Image image;
try
{
Bitmap bitmap = new Bitmap(width, height, System.Drawing.Imaging.PixelFormat.Format24bppRgb);
System.Drawing.Imaging.BitmapData bitmapdata = bitmap.LockBits(new Rectangle(0, 0, width, height), System.Drawing.Imaging.ImageLockMode.WriteOnly, System.Drawing.Imaging.PixelFormat.Format24bppRgb);
byte[] data = new byte[height * bitmapdata.Stride];
for (int i = 0; i < height; i++)
{
dr.Read(data, i * bitmapdata.Stride, width * 3);
}
System.Runtime.InteropServices.Marshal.Copy(data, 0, bitmapdata.Scan0, data.Length);
bitmap.UnlockBits(bitmapdata);
image = bitmap;
}
catch
{
throw;
}
finally
{
dr.Close();
}
return image;
}
public override Image ReadImageData(IPnmDataReader dr, int width, int height)
{
Image image;
try
{
Bitmap bitmap = new Bitmap(width, height, System.Drawing.Imaging.PixelFormat.Format8bppIndexed);
System.Drawing.Imaging.BitmapData bitmapdata = bitmap.LockBits(new Rectangle(0, 0, width, height), System.Drawing.Imaging.ImageLockMode.WriteOnly, System.Drawing.Imaging.PixelFormat.Format8bppIndexed);
System.Drawing.Imaging.ColorPalette palette = bitmap.Palette;
for (int i = 0; i < palette.Entries.Length; i++)
{
palette.Entries[i] = Color.FromArgb(i, i, i);
}
bitmap.Palette = palette;
byte[] data = new byte[height * bitmapdata.Stride];
for (int j = 0; j < height; j++)
{
dr.Read(data, j * bitmapdata.Stride, width);
}
System.Runtime.InteropServices.Marshal.Copy(data, 0, bitmapdata.Scan0, data.Length);
bitmap.UnlockBits(bitmapdata);
image = bitmap;
}
catch
{
throw;
}
finally
{
dr.Close();
}
return image;
}
public override Image ReadImageData(IPnmDataReader dr, int width, int height)
{
Image image;
try
{
int count = (dr is ASCIIDataReader) ? width : ((int)Math.Ceiling((double)(((double)width) / 8.0)));
Bitmap bitmap = new Bitmap(width, height, System.Drawing.Imaging.PixelFormat.Format8bppIndexed);
System.Drawing.Imaging.BitmapData bitmapdata = bitmap.LockBits(new Rectangle(0, 0, width, height), System.Drawing.Imaging.ImageLockMode.WriteOnly, System.Drawing.Imaging.PixelFormat.Format8bppIndexed);
System.Drawing.Imaging.ColorPalette palette = bitmap.Palette;
palette.Entries[0] = Color.Black;
palette.Entries[1] = Color.White;
bitmap.Palette = palette;
byte[] data = new byte[height * bitmapdata.Stride];
for (int i = 0; i < height; i++)
{
dr.Read(data, i * bitmapdata.Stride, count);
}
System.Runtime.InteropServices.Marshal.Copy(data, 0, bitmapdata.Scan0, data.Length);
bitmap.UnlockBits(bitmapdata);
image = bitmap;
}
catch
{
throw;
}
finally
{
dr.Close();
}
return image;
}
public abstract Image ReadImageData(IPnmDataReader dr, int width, int height);
