public override Bitmap Draw(string filePath, Palette palette, BackgroundWorker worker)
{
if (palette.Colors.Count != 4)
{
throw new Exception("Palette mismatch.");
}
if (!File.Exists(filePath))
{
throw new Exception("File not found.");
}
if (new FileInfo(filePath).Length == 0)
{
return new Bitmap(0, 0);
}
byte[] bytes = File.ReadAllBytes(filePath);
byte[] twoBppValues = new byte[bytes.Length * 4];
bytes.Length.Times(i =>
{
twoBppValues[(i * 4)] = (byte)((bytes[i] & 0xC0) >> 6);
twoBppValues[(i * 4) + 1] = (byte)((bytes[i] & 0x30) >> 4);
twoBppValues[(i * 4) + 2] = (byte)((bytes[i] & 0x0C) >> 2);
twoBppValues[(i * 4) + 3] = (byte)((bytes[i] & 0x03));
});
TwoBppBitmap bitmap = new TwoBppBitmap(Drawer.GetImageSize(twoBppValues.Length), twoBppValues, palette.GetColor(0), palette.GetColor(1), palette.GetColor(2), palette.GetColor(3));
return bitmap.ToBitmap(worker);
}
public override Bitmap Draw(string filePath, Palette palette, BackgroundWorker worker)
{
if (palette.Colors.Count != 2)
{
throw new Exception("Palette mismatch.");
}
if (!File.Exists(filePath))
{
throw new Exception("File not found.");
}
if (new FileInfo(filePath).Length == 0)
{
return new Bitmap(0, 0);
}
BitArray bits = new BitArray(File.ReadAllBytes(filePath));
OneBppBitmap bitmap = new OneBppBitmap(Drawer.GetImageSize(bits.Length), bits, palette.GetColor(0), palette.GetColor(1));
return bitmap.ToBitmap(worker);
}