protected virtual Bitmap OnNonLinearTransfromNeeded()
{
Bitmap bmp = null;
if (ctrlBmp == null)
{
return(null);
}
if (NonLinearTransfromNeeded == null)
{
if (!animation.IsNonLinearTransformNeeded)
{
return(ctrlBmp);
}
}
try
{
bmp = (Bitmap)ctrlBmp.Clone();
const int bytesPerPixel = 4;
PixelFormat pxf = PixelFormat.Format32bppArgb;
Rectangle rect = new Rectangle(0, 0, bmp.Width, bmp.Height);
BitmapData bmpData = bmp.LockBits(rect, ImageLockMode.ReadWrite, pxf);
IntPtr ptr = bmpData.Scan0;
int numBytes = bmp.Width * bmp.Height * bytesPerPixel;
byte[] argbValues = new byte[numBytes];
System.Runtime.InteropServices.Marshal.Copy(ptr, argbValues, 0, numBytes);
var e = new NonLinearTransfromNeededEventArg()
{
CurrentTime = CurrentTime, ClientRectangle = DoubleBitmap.ClientRectangle, Pixels = argbValues, Stride = bmpData.Stride
};
if (NonLinearTransfromNeeded != null)
{
NonLinearTransfromNeeded(this, e);
}
else
{
e.UseDefaultTransform = true;
}
if (e.UseDefaultTransform)
{
TransfromHelper.DoBlind(e, animation);
TransfromHelper.DoMosaic(e, animation, ref buffer, ref pixelsBuffer);
TransfromHelper.DoTransparent(e, animation);
TransfromHelper.DoLeaf(e, animation);
}
System.Runtime.InteropServices.Marshal.Copy(argbValues, 0, ptr, numBytes);
bmp.UnlockBits(bmpData);
}
catch
{
}
return(bmp);
}