/// <summary>
/// Specific create and store method for huge distance fields, uses threading to speed up the process
/// but the overhead might be to large for small field.
/// </summary>
/// <param name="interpolationMode"></param>
/// <param name="width"></param>
/// <param name="height"></param>
/// <param name="scale"></param>
/// <param name="filename"></param>
/// <param name="buffer"></param>
public static void CreateAndStoreBigDistanceField(InterpolationMode interpolationMode, int width, int height, int scale, string filename, uint[] buffer, int spreadFactor = -1)
{
ThreadPool.QueueUserWorkItem(new WaitCallback((object o) =>
{
Grid g1, g2;
Grid.FromBitmap(out g1, out g2, width, height, buffer);
int completionCounter = 0;
ThreadPool.QueueUserWorkItem(new WaitCallback((object k) =>
{
g1.Generate();
if (Interlocked.Add(ref completionCounter, 1) == 2)
{
Grid.ToBitmap(g1, g2, scale, interpolationMode, spreadFactor).Save(filename);
}
}));
ThreadPool.QueueUserWorkItem(new WaitCallback((object j) =>
{
g2.Generate();
if (Interlocked.Add(ref completionCounter, 1) == 2)
{
Grid.ToBitmap(g1, g2, scale, interpolationMode, spreadFactor).Save(filename);
}
}));
}));
}
public static Bitmap CreateBigDistanceField(InterpolationMode interpolation, int width, int height, int scale, uint[] buffer, int spreadFactor = -1)
{
Bitmap output = new Bitmap(width >> scale, height >> scale);
Grid g1, g2;
Grid.FromBitmap(out g1, out g2, width, height, buffer);
Debug.Print(
"Generating distance field: W:" + width.ToString() +
" H:" + height.ToString() +
" Spread: " + spreadFactor.ToString() +
" Scale Factor: " + scale.ToString()
);
Thread g1t, g2t, bitmapT;
g1t = new Thread(() =>
{
g1.Generate();
Debug.Print("Grid 1 generated.");
});
g2t = new Thread(() =>
{
g2.Generate();
Debug.Print("Grid 2 generated.");
});
g1t.Start();
g2t.Start();
g1t.Join();
g2t.Join();
output = Grid.ToBitmap(g1, g2, scale, interpolation, spreadFactor);
return(output);
}
public static Bitmap CreateDistanceField(InterpolationMode interpolation, int width, int height, int scale, uint[] buffer)
{
Grid g1, g2;
Grid.FromBitmap(out g1, out g2, width, height, buffer);
g1.Generate();
g2.Generate();
return(Grid.ToBitmap(g1, g2, scale, interpolation));
}
