private void _CreateFireGenerator()
{
lock (_fireGenLock)
{
BitmapSource image = Source;
if (image == null)
{
_fireGenerator = null;
return;
}
int imageSize = image.PixelWidth * image.PixelHeight;
int stride = image.PixelWidth * 4;
_fireGenerator = new FireGenerator(image.PixelWidth, image.PixelHeight);
byte[] baseImage = new byte[stride * image.PixelHeight];
image.CopyPixels(baseImage, stride, 0);
for (int i = 0; i < imageSize; i++)
{
_fireGenerator.BaseAlphaChannel[i] = baseImage[i * 4 + 3];
}
}
}
