public static Icon Parse(Stream stream)
{
if (stream is null)
{
throw new ArgumentNullException(nameof(stream));
}
UnsafeEx.SkipInitIfPossible(out ICONDIR icondir); // 6 bytes
stream.SafeRead(UnsafeEx.AsBytes(ref icondir));
if (icondir.idCount < 0)
{
ThrowHelper.ThrowFormatException();
}
using var entries = new UnsafeRawArray <ICONDIRENTRY>(icondir.idCount, false);
stream.SafeRead(entries.AsBytes());
return(Icon.Create(icondir.idCount, (stream, entries), static (images, state) =>
{
var(stream, entries) = state;
for (int i = 0; i < images.Length; i++)
{
images[i] = ParseImage(stream, entries[i]);
}
}));
}