private void Prehash(string dir, WorkWindow wwin, string fname)
{
IEnumerable <string> files =
Directory.EnumerateFiles(dir, "*", SearchOption.AllDirectories)
.Where(file => file.EndsWith(".png") || file.EndsWith(".jpg") || file.EndsWith(".jpeg"));
ParallelOptions opts = new ParallelOptions()
{
MaxDegreeOfParallelism = Environment.ProcessorCount - 1
};
int idx = 0;
int total = files.Count();
Parallel.ForEach(files, opts, (file) =>
{
wwin.SetPBarScore(idx, total);
wwin.SetSecondaryMessage($"BUILDING CACHE...\n [{idx}] out of [{files.Count()}]");
BitmapComparer.CacheDiff(file);
idx++;
});
BitmapComparer.SaveDiffCacheToDisk(fname);
}