/// <summary>
/// Encodes up to eight bitmap values into a byte. The values are stored from the most significant bit downward,
/// i.e. the leftmost value is stored in the most significant bit.
/// </summary>
/// <returns>The bitmap pixels encoded into a byte.</returns>
/// <param name="image">The image being encoded.</param>
/// <param name="pixels">The bitmap pixels to encode into a byte.</param>
/// <typeparam name="TPixelComponent">The type of the pixel component.</typeparam>
private byte EncodeBitmapValuesIntoByte <TPixelComponent>(NetpbmImage <TPixelComponent> image, IList <TPixelComponent> pixels)
{
Contract.Assert(pixels.Count > 0 && pixels.Count < 9);
byte theByte = 0;
// earliest value = most significant bit
for (int i = 0; i < 8; ++i)
{
if (!image.IsComponentValueZero(pixels[i]))
{
theByte |= (byte)(1 << (7 - i));
}
}
return(theByte);
}