protected Raster(Buffer.Sized buffer, global::Cairo.Surface backend, Geometry2D.Integer.Size size) :
base(backend, size)
{
this.Buffer = buffer;
}
public static Image AsImage(this System.Drawing.Bitmap me)
{
Image result = null;
if (me.NotNull())
{
if (me.PixelFormat != System.Drawing.Imaging.PixelFormat.Format24bppRgb &&
me.PixelFormat != System.Drawing.Imaging.PixelFormat.Format32bppArgb)
{ // Bitmap data that we don't support we draw upon a ARGB bitmap and use that instead.
System.Drawing.Bitmap newBitmap = new System.Drawing.Bitmap(me.Width, me.Height);
using (System.Drawing.Graphics canvas = System.Drawing.Graphics.FromImage(newBitmap))
canvas.DrawImageUnscaled(me, 0, 0);
me.Dispose();
me = newBitmap;
}
System.Drawing.Imaging.BitmapData data = me.LockBits(new System.Drawing.Rectangle(0, 0, me.Width, me.Height), System.Drawing.Imaging.ImageLockMode.ReadOnly, me.PixelFormat);
Buffer.Sized buffer = new Buffer.Sized(data.Scan0, data.Stride * data.Height, (pointer) =>
{
if (me.NotNull())
me.Dispose();
});
switch (me.PixelFormat)
{
case System.Drawing.Imaging.PixelFormat.Format24bppRgb:
result = new Bgr(buffer, new Geometry2D.Integer.Size(me.Width, me.Height));
break;
case System.Drawing.Imaging.PixelFormat.Format32bppArgb:
result = new Bgra(buffer, new Geometry2D.Integer.Size(me.Width, me.Height));
break;
}
}
return result;
}
