public static void Encode(string fileName, FarbfeldImageData imageData)
{
if (string.IsNullOrEmpty(fileName))
{
throw new ArgumentNullException(nameof(fileName));
}
if (imageData == null)
{
throw new ArgumentNullException(nameof(imageData));
}
using (Stream stream = File.Create(fileName))
{
Encode(stream, imageData);
}
}
public static void Encode(Stream stream, FarbfeldImageData imageData)
{
if (stream == null)
{
throw new ArgumentNullException(nameof(imageData));
}
if (imageData == null)
{
throw new ArgumentNullException(nameof(imageData));
}
ushort[] data;
byte[] header;
byte[] buffer;
int width;
int height;
int rowLength;
int dataIndex;
width = imageData.Width;
height = imageData.Height;
data = imageData.GetData();
rowLength = width * Farbfeld.PixelDataLength;
dataIndex = 0;
header = new byte[8];
header[0] = (byte)'f';
header[1] = (byte)'a';
header[2] = (byte)'r';
header[3] = (byte)'b';
header[4] = (byte)'f';
header[5] = (byte)'e';
header[6] = (byte)'l';
header[7] = (byte)'d';
stream.Write(header, 0, 8);
stream.WriteBigEndian(width);
stream.WriteBigEndian(height);
buffer = new byte[rowLength];
for (int row = 0; row < height; row++)
{
for (int col = 0; col < width; col++)
{
int index;
ushort r;
ushort g;
ushort b;
ushort a;
index = col * Farbfeld.PixelDataLength;
r = data[dataIndex];
g = data[dataIndex + 1];
b = data[dataIndex + 2];
a = data[dataIndex + 3];
buffer[index] = (byte)(r >> 8);
buffer[index + 1] = (byte)r;
buffer[index + 2] = (byte)(g >> 8);
buffer[index + 3] = (byte)g;
buffer[index + 4] = (byte)(b >> 8);
buffer[index + 5] = (byte)b;
buffer[index + 6] = (byte)(a >> 8);
buffer[index + 7] = (byte)a;
dataIndex += 4;
}
stream.Write(buffer, 0, rowLength);
}
}
