protected void UpdateMap()
{
BitMap.Lock();
unsafe {
var pbuff = (byte *)BitMap.BackBuffer.ToPointer();
var bpp = BitMap.Format.BitsPerPixel / 8;
var h = BitMap.Height;
var w = BitMap.Width;
var s = BitMap.BackBufferStride;
var neurons = network.Layers[0].Neurons;
var i = 0;
var v = Convert.ToInt32(DisplayChannels.ShowRed) + Convert.ToInt32(DisplayChannels.ShowGreen) + Convert.ToInt32(DisplayChannels.ShowBlue);
var f = 1d / v;
for (var y = 0; y < h; y++)
{
for (var x = 0; x < w; x++, i++)
{
var loc = y * s + x * bpp;
var weights = neurons[i].InputWeights;
var r = DisplayChannels.ShowRed ? weights[0] * 255 : 0;
var g = DisplayChannels.ShowGreen ? weights[1] * 255 : 0;
var b = DisplayChannels.ShowBlue ? weights[2] * 255 : 0;
if (DisplayChannels.ShowGrayscale)
{
var gray = (byte)(f * r + f * g + f * b);
pbuff[loc] = gray;
pbuff[loc + 1] = gray;
pbuff[loc + 2] = gray;
}
else
{
pbuff[loc] = (byte)r;
pbuff[loc + 1] = (byte)g;
pbuff[loc + 2] = (byte)b;
}
}
}
}
BitMap.AddDirtyRect(new Int32Rect(0, 0, (int)BitMap.Width, (int)BitMap.Height));
BitMap.Unlock();
}
