/// <summary>
/// Send a Bitmap as Byte Array to the Device
/// </summary>
/// <param name="scanLine">Int Pointer to the start of the Bytearray</param>
/// <param name="stride">Length of a ScanLine</param>
/// <param name="maxX">Max Pixels horizontal</param>
/// <param name="maxY">Max Pixels Vertical</param>
internal void SendBitmapToDevice(IntPtr scanLine, int stride, int maxX, int maxY)
{
var inputLine = new byte[stride];
var pixel = new ByteColor(0, 0, 0);
for (var y = 0; y < maxY; y++, scanLine += stride)
{
Marshal.Copy(scanLine, inputLine, 0, inputLine.Length);
var xPos = 0;
for (var x = 0; x < maxX; x++)
{
pixel.SetBGR(inputLine[xPos++], inputLine[xPos++], inputLine[xPos++], IsPalletMonochrome);
if (ColorBytesPerPixel > 3)
{
xPos += ColorBytesPerPixel - 3;
}
DisplayWriter.Write(GetColorIndex(pixel));
}
for (var x = maxX; x < Width; x++)
{
DisplayWriter.WriteBlankPixel();
}
}
// Write blank lines if image is smaller than display.
for (var y = maxY; y < Height; y++)
{
DisplayWriter.WriteBlankLine();
}
DisplayWriter.Finish();
}
/// <summary>
/// Adjust RGB values on a color. Clamping the values between 0 and 255.
/// </summary>
/// <param name="color">Color to adjust</param>
/// <param name="valueR">Red value to add</param>
/// <param name="valueG">Green value to add</param>
/// <param name="valueB">Blue value to add</param>
protected static void AdjustRgb(ref ByteColor color, int valueR, int valueG, int valueB)
{
var r = ConvertColorIntToByte(color.R + valueR);
var g = ConvertColorIntToByte(color.G + valueG);
var b = ConvertColorIntToByte(color.B + valueB);
color.SetBGR(b, g, r);
}
/// <summary>
/// Send a Dithered Bitmap as Byte Array to the Device
/// </summary>
/// <param name="scanLine">Int Pointer to the start of the Bytearray</param>
/// <param name="stride">Length of a ScanLine</param>
/// <param name="maxX">Max Pixels horizontal</param>
/// <param name="maxY">Max Pixels Vertical</param>
internal void SendDitheredBitmapToDevice(IntPtr scanLine, int stride, int maxX, int maxY)
{
var data = new ByteColor[Width, 2];
var currentLine = 0;
var previousLine = 1;
var inputLine = new byte[stride];
var pixel = new ByteColor(0, 0, 0);
var odd = false;
var dither = false;
for (var y = 0; y < maxY; y++, scanLine += stride)
{
if (odd)
{
previousLine = 0;
currentLine = 1;
odd = false;
dither = true;
}
else
{
previousLine = 1;
currentLine = 0;
odd = true;
}
Marshal.Copy(scanLine, inputLine, 0, inputLine.Length);
var xPos = 0;
for (var x = 0; x < maxX; x++)
{
pixel.SetBGR(inputLine[xPos++], inputLine[xPos++], inputLine[xPos++], IsPalletMonochrome);
if (ColorBytesPerPixel > 3)
{
xPos += ColorBytesPerPixel - 3;
}
data[x, currentLine] = pixel;
}
for (var x = maxX; x < Width; x++)
{
data[x, currentLine] = ByteColors.White;
}
if (dither)
{
DitherAndWrite(data, previousLine, currentLine, false);
}
}
// Finish last line
DitherAndWrite(data, currentLine, previousLine, true);
// Write blank lines if image is smaller than display.
for (var y = maxY; y < Height; y++)
{
DisplayWriter.WriteBlankLine();
}
DisplayWriter.Finish();
}