public static void DrawBitmapToBuffer(Bitmap source, PixelsBuffer buffer)
{
//make sure we have a ABGR Bitmap, same as PixelFormat.Format32bppArgb
var bmp = ConvertConfig(source, Bitmap.Config.Argb8888);
//copy Bitmap's data to buffer
IntPtr ptr = bmp.LockPixels();
int size = bmp.RowBytes * bmp.Height;
byte[] tmpBuffer = new byte[bmp.Width * bmp.Height * 4];
System.Runtime.InteropServices.Marshal.Copy(ptr, tmpBuffer, 0, size);
bmp.UnlockPixels();
//copy to pixel buffer
buffer.FromBytes(tmpBuffer, PixelFormats.Bgra);
}
/// <summary>
/// Draw a gdi+ System.Drawing.Bitmap to the rendering buffer
/// </summary>
public static void DrawBitmapToBuffer(Image source, PixelsBuffer buffer)
{
//make sure we have a ABGR System.Drawing.Bitmap
Bitmap bmp = null;
bmp = new Bitmap(source.Width, source.Height, PixelFormat.Format32bppArgb);
Graphics g = Graphics.FromImage(bmp);
g.DrawImage(source, new Rectangle(0, 0, source.Width, source.Height));
g.Dispose();
//copy System.Drawing.Bitmap's data to buffer
Rectangle r = new Rectangle(0, 0, source.Width, source.Height);
BitmapData data = bmp.LockBits(r, ImageLockMode.ReadWrite, PixelFormat.Format32bppArgb);
IntPtr ptr = data.Scan0;
int size = data.Stride * bmp.Height;
byte[] tmpBuffer = new byte[bmp.Width * bmp.Height * 4];
System.Runtime.InteropServices.Marshal.Copy(ptr, tmpBuffer, 0, size);
bmp.UnlockBits(data);
//copy to pixel buffer
buffer.FromBytes(tmpBuffer, PixelFormats.Bgra);
}
