public static bool FastCompare(int offset, int size, int ptr1, int ptr2, SimpleBitmapInfo sharedInfo)
{
if (NativeMethods.memcmp((byte *)(ptr1 + offset), (byte *)(ptr2 + offset), (uint)size) != 0)
{
return(false);
}
return(true);
}
public SimpleBitmap()
{
Scan0 = IntPtr.Zero;
bitmapData = null;
bitMap = null;
Info = new SimpleBitmapInfo();
}
public static bool Compare(int y, int rowsize, int ptr1, int ptr2, SimpleBitmapInfo sharedInfo)
{
int calc = 0;
int Size = sharedInfo.Width * sharedInfo.PixelSize * rowsize;
calc = y * sharedInfo.Stride;
if (NativeMethods.memcmp((byte *)(ptr1 + calc), (byte *)(ptr2 + calc), (uint)Size) != 0)
{
return(false);
}
return(true);
}
public static bool Compare(Rectangle block, int ptr1, int ptr2, SimpleBitmapInfo sharedInfo)
{
int calc = 0;
int WidthSize = block.Width * sharedInfo.PixelSize;
calc = (block.Y) * sharedInfo.Stride + block.X * sharedInfo.PixelSize;
for (int i = 0; i < block.Height; i++)
{
if (NativeMethods.memcmp((byte *)(ptr1 + calc), (byte *)(ptr2 + calc), (uint)WidthSize) != 0)
{
return(false);
}
calc += sharedInfo.Stride;
}
return(true);
}
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();
}
}
