public unsafe void CopyBlock(Rectangle block, ref byte[] dest)
{
int calc = 0;
int WidthSize = block.Width * Info.PixelSize;
int CopyOffset = 0;
int scan0 = Scan0.ToInt32();
int destSize = WidthSize * block.Height;
if (dest == null || dest.Length != destSize)
{
dest = new byte[destSize];
}
calc = (block.Y) * Info.Stride + block.X * Info.PixelSize;
fixed(byte *ptr = dest)
{
for (int i = 0; i < block.Height; i++)
{
NativeMethods.memcpy(new IntPtr(ptr + CopyOffset), new IntPtr(scan0 + calc), (uint)WidthSize);
calc += Info.Stride;
CopyOffset += WidthSize;
}
}
}
public void Lock()
{
if (Locked)
{
throw new Exception("Already locked");
}
lock (ProcessingLock)
{
bitmapData = bitMap.LockBits(new Rectangle(0, 0, bitMap.Width, bitMap.Height), ImageLockMode.ReadWrite, bitMap.PixelFormat);
Info = new SimpleBitmapInfo(bitmapData);
Scan0 = bitmapData.Scan0;
Scan0_int = Scan0.ToInt32();
}
}
