private async Task PrintBitmap(Bitmap bimg, bool dither = true)
{
if (dither)
{
logger.Trace("Dithering input bitmap");
bimg = Grayscale.CommonAlgorithms.Y.Apply(bimg);
OrderedDithering f = new
OrderedDithering(bayer4);
bimg = f.Apply(bimg);
logger.Debug("Dithered Bitmap");
}
bimg = CopyToBpp(bimg);
logger.Debug("Converted Bitmap to 1-bit");
int hSzImg = bimg.Height;
byte[] iimg = new byte[hSzImg * mmj.Printer.LineWidth];
byte[] img;
using (MemoryStream s = new MemoryStream()) {
bimg.Save(s, ImageFormat.Bmp);
img = s.ToArray();
}
logger.Debug("Got bitmap's bytes");
bimg.Dispose();
logger.Debug("Disposed of Bitmap");
int startoffset = img.Length - (hSzImg * mmj.Printer.LineWidth);
logger.Debug("Processing bytes with offset " + startoffset);
for (int h = 0; h < hSzImg; h++)
{
for (int w = 0; w < mmj.Printer.LineWidth; w++)
{
iimg[(mmj.Printer.LineWidth * (hSzImg - 1 - h)) + (mmj.Printer.LineWidth - 1 - w)] = (byte)~
img[startoffset + (mmj.Printer.LineWidth * h) + (mmj.Printer.LineWidth - 1 - w)];
}
}
logger.Debug($"Have {img.Length} bytes of print data ({mmj.Printer.LineWidth * 8}x{hSzImg}@1bpp)");
await mmj.PrintBytesAsync(iimg, false);
}
