/// <summary>
/// Loads the binary data with given settings as an image
/// </summary>
/// <param name="bytes">Bytearray containing the binary image data</param>
/// <param name="settings">The settings determining the final image output</param>
/// <returns>Bitmap</returns>
public static Bitmap Load(byte[] bytes, ImageSettings settings)
{
int width = settings.Width, height = settings.Height;
var points = GetPointSequence(settings);
var bmp = new Bitmap(width, height);
var data = bmp.LockBits(new Rectangle(0, 0, width, height), ImageLockMode.WriteOnly, PixelFormat.Format32bppArgb);
unsafe
{
var ptr = (int *)data.Scan0;
foreach (var pair in points.Zip(settings.Format.Load(bytes), Tuple.Create))
{
int x = pair.Item1.X, y = pair.Item1.Y;
if (0 <= x && x < width && 0 <= y && y < height)
{
var color = pair.Item2;
if (settings.PixelShader != null)
{
color = settings.PixelShader(color);
}
ptr[data.Stride * y / 4 + x] = color.ToArgb();
}
}
}
bmp.UnlockBits(data);
return(bmp);
}
/// <summary>
/// Gives back a sequence of points, modified by Swizzles if applied
/// </summary>
static IEnumerable <Point> GetPointSequence(ImageSettings settings)
{
int strideWidth = (settings.Swizzle != null) ? settings.Swizzle.Width : settings.Width;
int strideHeight = (settings.Swizzle != null) ? settings.Swizzle.Height : settings.Height;
for (int i = 0; i < strideWidth * strideHeight; i++)
{
var point = new Point(i % strideWidth, i / strideWidth);
if (settings.Swizzle != null)
{
point = settings.Swizzle.Get(point);
}
yield return(point);
}
}
/// <summary>
/// Converts a given Bitmap, modified by given settings, in binary data
/// </summary>
/// <param name="bmp">The bitmap, which will be converted</param>
/// <param name="settings">Settings like Format, Dimensions and Swizzles</param>
/// <returns>byte[]</returns>
public static byte[] Save(Bitmap bmp, ImageSettings settings)
{
var points = GetPointSequence(settings);
var colors = new List <Color>();
foreach (var point in points)
{
int x = Clamp(point.X, 0, bmp.Width);
int y = Clamp(point.Y, 0, bmp.Height);
var color = bmp.GetPixel(x, y);
if (settings.PixelShader != null)
{
color = settings.PixelShader(color);
}
colors.Add(color);
}
return(settings.Format.Save(colors));
}
