unsafe bool CheckBlock(int i, short *next_point, short *point)
{
Metablock block = blocks[i];
int endX = block.x + block.width;
int endY = block.y + block.height;
int dist = 0;
for (int x = block.x; x < endX; x += 2)
{
for (int y = block.y; y < endY; y += 2)
{
dist += Math.Abs(point[y * width + x] - next_point[y * width + x]);
}
}
return(dist == 0);
}
void CreateMetaclocks()
{
for (int x = 0; x < width; x += rect_size)
{
for (int y = 0; y < height; y += rect_size)
{
Metablock block = new Metablock
{
x = x,
y = y,
width = Math.Min(x + rect_size, width) - x,
height = Math.Min(y + rect_size, height) - y
};
blocks.Add(block);
}
}
}
public Bitmap LoadFromStr(Stream str)
{
Bitmap next = new Bitmap(width, height);
BitmapData next_data = next.LockBits(new Rectangle(0, 0, width, height), ImageLockMode.WriteOnly, PixelFormat.Format16bppRgb565);
unsafe
{
//pos один расчет положения в циклах
int pos;
short *next_point = (short *)next_data.Scan0.ToPointer();
short *point = (short *)data.Scan0.ToPointer();
byte * b_point = (byte *)point;
while (str.Position < str.Length)
{
Message m = (Message)formatter.Deserialize(str);
Metablock block = blocks[m.blockIndex];
int endX = block.x + block.width;
int endY = block.y + block.height;
for (int y = block.y; y < endY; y++)
{
for (int x = block.x; x < endX; x++)
{
pos = (y * width + x) * 2;
b_point[pos] = (byte)str.ReadByte();
b_point[pos + 1] = (byte)str.ReadByte();
}
}
}
for (int y = 0; y < height; y++)
{
for (int x = 0; x < width; x++)
{
next_point[y * width + x] = point[y * width + x];
}
}
}
next.UnlockBits(next_data);
return(next);
}
