async Task SaveToFile(SharpDX.WIC.Bitmap bitmap) // debugging helper method, remove when no longer needed.
{
var width = bitmap.Size.Width;
var height = bitmap.Size.Height;
var pixels = new SharpDX.ColorBGRA[bitmap.Size.Width * bitmap.Size.Height];
bitmap.CopyPixels(pixels);
var bytes = new byte[width * height * 4];
for (var i = 0; i < pixels.Length; ++i)
{
bytes[i * 4 + 0] = (byte)pixels[i].B;
bytes[i * 4 + 1] = (byte)pixels[i].G;
bytes[i * 4 + 2] = (byte)pixels[i].R;
bytes[i * 4 + 3] = (byte)pixels[i].A;
}
var folder = ApplicationData.Current.LocalFolder;
var file = await folder.CreateFileAsync("test.png", CreationCollisionOption.ReplaceExisting);
using (IRandomAccessStream stream = await file.OpenAsync(FileAccessMode.ReadWrite))
{
var encoder = await BitmapEncoder.CreateAsync(BitmapEncoder.PngEncoderId, stream);
encoder.SetPixelData(BitmapPixelFormat.Bgra8,
BitmapAlphaMode.Ignore,
(uint)bitmap.Size.Width, (uint)bitmap.Size.Height,
96, 96, bytes);
await encoder.FlushAsync();
}
}
private void CopyWicPixelsToBuffer(RawBox box)
{
if (_bitmap != null)
{
lock (_bitmapLock)
{
_bitmap.CopyPixels(box, _intBuffer);
}
}
}
/// <summary>
/// Returns a System.Drawing.Bitmap object that is a copy of the image stored in this
/// D2dWicGraphics object.</summary>
/// <returns>System.Drawing.Bitmap copy of image</returns>
public System.Drawing.Bitmap Copy()
{
var bitmap = new System.Drawing.Bitmap(m_wicBitmap.Size.Width, m_wicBitmap.Size.Height);
System.Drawing.Imaging.BitmapData data = bitmap.LockBits(new System.Drawing.Rectangle(0, 0, bitmap.Width, bitmap.Height),
System.Drawing.Imaging.ImageLockMode.WriteOnly, bitmap.PixelFormat);
m_wicBitmap.CopyPixels(data.Stride, data.Scan0, data.Height * data.Stride);
bitmap.UnlockBits(data);
return(bitmap);
}
public static Bitmap CopyWicBitmapToBitmap(WicBitmap wicBitmap, int width, int height, object wicBitmapLock)
{
var pixelData = new byte[width * height * 4];
lock (wicBitmapLock)
{
wicBitmap.CopyPixels(pixelData, width * 4);
}
var bitmap = new Bitmap(width, height);
var lockRectangle = new Rectangle(0, 0, width, height);
var pixelFormat = System.Drawing.Imaging.PixelFormat.Format32bppPArgb;
var lockFlags = ImageLockMode.WriteOnly;
var bitmapData = bitmap.LockBits(lockRectangle, lockFlags, pixelFormat);
Marshal.Copy(pixelData, 0, bitmapData.Scan0, pixelData.Length);
bitmap.UnlockBits(bitmapData);
return(bitmap);
}
public byte[] GetPixels()
{
if (bitmap == null)
{
throw new InvalidOperationException("Cannot GetPixels on SwapChain graphics");
}
var width = bitmap.Size.Width;
var numBytes = width * bitmap.Size.Height * 4;
var bytes = new byte[numBytes];
unsafe
{
fixed(byte *pb = bytes)
{
bitmap.CopyPixels(width * 4, new IntPtr(pb), numBytes);
}
}
return(bytes);
}
