public static PPMFrame ReadPPMFrame(this BinaryReader br)
{
PPMFrame frame = new PPMFrame();
frame._firstByteHeader = br.ReadByte();
if ((frame._firstByteHeader & 0x60) != 0)
{
frame._translateX = br.ReadSByte();
frame._translateY = br.ReadSByte();
}
frame.PaperColor = (PaperColor)(frame._firstByteHeader % 2);
frame.Layer1.PenColor = (PenColor)((frame._firstByteHeader >> 1) & 3);
frame.Layer2.PenColor = (PenColor)((frame._firstByteHeader >> 3) & 3);
frame.Layer1._linesEncoding = br.ReadBytes(0x30);
frame.Layer2._linesEncoding = br.ReadBytes(0x30);
for (int y = 0, yy; y < 192; y++)
{
yy = y << 5;
switch (frame.Layer1.LinesEncoding(y))
{
case 0:
break;
case (LineEncoding)1:
for (int x = 0; x < 32; x++)
{
frame.Layer1._layerData[yy + x] = 0x00;
}
byte b1 = br.ReadByte(), b2 = br.ReadByte(), b3 = br.ReadByte(), b4 = br.ReadByte();
uint bytes = ((uint)(b1 << 24)) + ((uint)(b2 << 16)) + ((uint)(b3 << 8)) + b4;
while (bytes != 0)
{
if ((bytes & 0x80000000) != 0)
{
frame.Layer1._layerData[yy] = br.ReadByte();
}
bytes <<= 1;
yy++;
}
break;
case (LineEncoding)2:
for (int x = 0; x < 32; x++)
{
frame.Layer1._layerData[yy + x] = 0xFF;
}
b1 = br.ReadByte(); b2 = br.ReadByte(); b3 = br.ReadByte(); b4 = br.ReadByte();
bytes = ((uint)(b1 << 24)) + ((uint)(b2 << 16)) + ((uint)(b3 << 8)) + b4;
while (bytes != 0)
{
if ((bytes & 0x80000000) != 0)
{
frame.Layer1._layerData[yy] = br.ReadByte();
}
bytes <<= 1;
yy++;
}
break;
case (LineEncoding)3:
for (int x = 0; x < 32; x++)
{
frame.Layer1._layerData[yy + x] = br.ReadByte();
}
break;
}
}
for (int y = 0, yy; y < 192; y++)
{
yy = y << 5;
switch (frame.Layer2.LinesEncoding(y))
{
case 0:
break;
case (LineEncoding)1:
for (int x = 0; x < 32; x++)
{
frame.Layer2._layerData[yy + x] = 0x00;
}
byte b1 = br.ReadByte(), b2 = br.ReadByte(), b3 = br.ReadByte(), b4 = br.ReadByte();
uint bytes = ((uint)(b1 << 24)) + ((uint)(b2 << 16)) + ((uint)(b3 << 8)) + b4;
while (bytes != 0)
{
if ((bytes & 0x80000000) != 0)
{
frame.Layer2._layerData[yy] = br.ReadByte();
}
bytes <<= 1;
yy++;
}
break;
case (LineEncoding)2:
for (int x = 0; x < 32; x++)
{
frame.Layer2._layerData[yy + x] = 0xFF;
}
b1 = br.ReadByte(); b2 = br.ReadByte(); b3 = br.ReadByte(); b4 = br.ReadByte();
bytes = ((uint)(b1 << 24)) + ((uint)(b2 << 16)) + ((uint)(b3 << 8)) + b4;
while (bytes != 0)
{
if ((bytes & 0x80000000) != 0)
{
frame.Layer2._layerData[yy] = br.ReadByte();
}
bytes <<= 1;
yy++;
}
break;
case (LineEncoding)3:
for (int x = 0; x < 32; x++)
{
frame.Layer2._layerData[yy + x] = br.ReadByte();
}
break;
}
}
return(frame);
}
public IEnumerable <PPMFrame> ThreeColorFrames(string Folder, PenColor color)
{
var images = Directory.GetFiles($"{Folder}", "*.png");
MathUtils.NumericalSort(images);
PPMFrame PreviousFrame = null;
for (int i = 0; i < images.Length; i++)
{
PPMFrame frame = new PPMFrame();
Rgba32 ColorBlue = Rgba32.ParseHex("#0000ff");
Rgba32 ColorRed = Rgba32.ParseHex("#FF0000");
Rgba32 ColorBlack = Rgba32.ParseHex("#000000");
Rgba32 ColorWhite = Rgba32.ParseHex("FFFFFF");
var ColorImage = (Image <Rgba32>)Image.Load($"{Folder}/frame_{i}.png");
int black = 0;
int white = 0;
for (int x = 0; x < 256; x++)
{
for (int y = 0; y < 192; y++)
{
frame.Layer1.SetLineEncoding(y, LineEncoding.CodedLine);
frame.Layer2.SetLineEncoding(y, LineEncoding.CodedLine);
var ColorPixel = ColorImage[x, y];
var ColorLuminance = (0.299 * ColorPixel.R + 0.587 * ColorPixel.G + 0.114 * ColorPixel.B) / 255;
var Red = ColorPixel == ColorRed;
var Blue = ColorPixel == ColorBlue;
var White = ColorPixel == ColorWhite;
var Black = ColorPixel == ColorBlack;
if (Red)
{
frame.Layer2[x, y] = true;
frame.Layer1[x, y] = false;
}
if (Blue)
{
frame.Layer2[x, y] = true;
frame.Layer1[x, y] = false;
}
if (White)
{
frame.Layer2[x, y] = false;
frame.Layer1[x, y] = false;
white++;
}
if (Black)
{
frame.Layer2[x, y] = false;
frame.Layer1[x, y] = true;
black++;
}
}
}
if (black > white)
{
for (int x = 0; x < 256; x++)
{
for (int y = 0; y < 192; y++)
{
var ColorPixel = ColorImage[x, y];
var ColorLuminance = (0.299 * ColorPixel.R + 0.587 * ColorPixel.G + 0.114 * ColorPixel.B) / 255;
var Red = ColorPixel == ColorRed;
var Blue = ColorPixel == ColorBlue;
var White = ColorPixel == ColorWhite;
var Black = ColorPixel == ColorBlack;
if (Red)
{
frame.Layer2[x, y] = true;
frame.Layer1[x, y] = false;
}
if (Blue)
{
frame.Layer2[x, y] = true;
frame.Layer1[x, y] = false;
}
if (White)
{
frame.Layer2[x, y] = false;
frame.Layer1[x, y] = true;
}
if (Black)
{
frame.Layer2[x, y] = false;
frame.Layer1[x, y] = false;
}
}
}
}
byte header = 0;
if (i == 0)
{
header |= 1 << 7; // no frame diffing
}
header |= (byte)(((int)color) << 3);
header |= (byte)(((int)PenColor.Inverted) << 1);
header |= (byte)(white > black ? 1 : 0);
frame._firstByteHeader = header;
frame.PaperColor = (PaperColor)(frame._firstByteHeader % 2);
frame.Layer1.PenColor = (PenColor)((frame._firstByteHeader >> 1) & 3);
frame.Layer2.PenColor = (PenColor)((frame._firstByteHeader >> 3) & 3);
if (i == 0)
{
PreviousFrame = frame;
yield return(frame);
}
else
{
var temp = frame.CreateDiff0(PreviousFrame);
PreviousFrame = frame;
yield return(temp);
}
}
}
public IEnumerable <PPMFrame> BlackWhiteFrames(string Folder)
{
var images = Directory.GetFiles($"{Folder}", "*.png");
MathUtils.NumericalSort(images);
Rgba32 ColorBlack = Rgba32.ParseHex("#000000");
Rgba32 ColorWhite = Rgba32.ParseHex("FFFFFF");
PPMFrame PreviousFrame = null;
for (int i = 0; i < images.Length; i++)
{
PPMFrame frame = new PPMFrame();
var ColorImage = (Image <Rgba32>)Image.Load($"{Folder}/frame_{i}.png");
int white = 0;
int black = 0;
for (int y = 0; y < 192; y++)
{
frame.Layer1.SetLineEncoding(y, LineEncoding.InvertedCodedLine);
frame.Layer2.SetLineEncoding(y, LineEncoding.SkipLine);
for (int x = 0; x < 256; x++)
{
var ColorPixel = ColorImage[x, y];
var Black = ColorPixel == ColorBlack;
if (Black)
{
frame.Layer1[x, y] = true;
black++;
}
else
{
frame.Layer1[x, y] = false;
white++;
}
}
}
if (black > white)
{
for (int y = 0; y < 192; y++)
{
for (int x = 0; x < 256; x++)
{
var ColorPixel = ColorImage[x, y];
var Black = ColorPixel == ColorBlack;
if (Black)
{
frame.Layer1[x, y] = false;
}
else
{
frame.Layer1[x, y] = true;
}
}
}
}
byte header = 0;
if (i == 0)
{
header |= 1 << 7; // no frame diffing
}
header |= (byte)(((int)PenColor.Red) << 3);
header |= (byte)(((int)PenColor.Inverted) << 1);
header |= (byte)((white > black ? 1 : 0) << 0);
frame._firstByteHeader = header;
if (i == 0)
{
PreviousFrame = frame;
yield return(frame);
}
else
{
var temp = frame.CreateDiff0(PreviousFrame);
PreviousFrame = frame;
yield return(temp);
}
}
}
public IEnumerable <PPMFrame> FullColorFrames(string Folder)
{
var images = Directory.GetFiles($"{Folder}", "*.png");
MathUtils.NumericalSort(images);
var PreviousColor = PenColor.Red;
PPMFrame PreviousFrame = null;
for (int i = 0; i < images.Length; i++)
{
PPMFrame frame = new PPMFrame();
int black = 0;
int white = 0;
Rgba32 ColorBlue = Rgba32.ParseHex("#0000ff");
Rgba32 ColorRed = Rgba32.ParseHex("#FF0000");
Rgba32 ColorBlack = Rgba32.ParseHex("#000000");
Rgba32 ColorWhite = Rgba32.ParseHex("FFFFFF");
var ColorImage = (Image <Rgba32>)Image.Load($"{Folder}/frame_{i}.png");
Image <Rgba32> GrayImage = null;
try
{
GrayImage = (Image <Rgba32>)Image.Load($"tmp/frame_{i}.png");
}
catch (Exception e)
{
GrayImage = (Image <Rgba32>)Image.Load($"tmp/frame_{i - 1}.png");
}
GrayImage.Mutate(x => x.BinaryThreshold(0.5f));
//Set all the funny pixels
for (int x = 0; x < 256; x++)
{
for (int y = 0; y < 192; y++)
{
frame.Layer1.SetLineEncoding(y, LineEncoding.CodedLine);
frame.Layer2.SetLineEncoding(y, LineEncoding.CodedLine);
var ColorPixel = ColorImage[x, y];
var ColorLuminance = (0.299 * ColorPixel.R + 0.587 * ColorPixel.G + 0.114 * ColorPixel.B) / 255;
var GrayPixel = GrayImage[x, y];
var GrayLuminance = (0.299 * GrayPixel.R + 0.587 * GrayPixel.G + 0.114 * GrayPixel.B) / 255;
var Red = ColorPixel == ColorRed;
var Blue = ColorPixel == ColorBlue;
var White = ColorPixel == ColorWhite;
var Black = ColorPixel == ColorBlack;
if (Red)
{
if (PreviousColor == PenColor.Blue)
{
if (GrayLuminance < 0.5f)
{
frame.Layer1[x, y] = true;
frame.Layer2[x, y] = false;
black++;
}
else
{
white++;
}
}
else
{
frame.Layer1[x, y] = false;
frame.Layer2[x, y] = true;
}
}
if (Blue)
{
if (PreviousColor == PenColor.Red)
{
if (GrayLuminance < 0.5f)
{
frame.Layer1[x, y] = true;
frame.Layer2[x, y] = false;
black++;
}
else
{
white++;
}
}
else
{
frame.Layer1[x, y] = false;
frame.Layer2[x, y] = true;
}
}
if (White)
{
frame.Layer1[x, y] = false;
frame.Layer2[x, y] = false;
white++;
}
if (Black)
{
frame.Layer1[x, y] = true;
frame.Layer2[x, y] = false;
black++;
}
}
}
byte header = 0;
if (i == 0)
{
header |= 1 << 7; // no frame diffing
}
if (PreviousColor == PenColor.Red)
{
header |= (byte)((int)PenColor.Red << 3);
PreviousColor = PenColor.Blue;
}
else
{
header |= (byte)((int)PenColor.Blue << 3);
PreviousColor = PenColor.Red;
}
header |= (byte)(((int)PenColor.Inverted) << 1);
header |= (byte)(white > black ? 1 : 0);
frame._firstByteHeader = header;
if (black > white)
{
for (int x = 0; x < 256; x++)
{
for (int y = 0; y < 192; y++)
{
var ColorPixel = ColorImage[x, y];
var ColorLuminance = (0.299 * ColorPixel.R + 0.587 * ColorPixel.G + 0.114 * ColorPixel.B) / 255;
var GrayPixel = GrayImage[x, y];
var GrayLuminance = (0.299 * GrayPixel.R + 0.587 * GrayPixel.G + 0.114 * GrayPixel.B) / 255;
var Red = ColorPixel == ColorRed;
var Blue = ColorPixel == ColorBlue;
var White = ColorPixel == ColorWhite;
var Black = ColorPixel == ColorBlack;
if (Red)
{
if (PreviousColor == PenColor.Red)
{
if (GrayLuminance > 0.5f)
{
frame.Layer1[x, y] = true;
frame.Layer2[x, y] = false;
black++;
}
else
{
frame.Layer1[x, y] = false;
frame.Layer2[x, y] = false;
}
}
else
{
frame.Layer1[x, y] = false;
frame.Layer2[x, y] = true;
}
}
if (Blue)
{
if (PreviousColor == PenColor.Blue)
{
if (GrayLuminance > 0.5f)
{
frame.Layer1[x, y] = true;
frame.Layer2[x, y] = false;
black++;
}
else
{
frame.Layer1[x, y] = false;
frame.Layer2[x, y] = false;
}
}
else
{
frame.Layer1[x, y] = false;
frame.Layer2[x, y] = true;
}
}
if (White)
{
frame.Layer1[x, y] = true;
frame.Layer2[x, y] = false;
}
if (Black)
{
frame.Layer1[x, y] = false;
frame.Layer2[x, y] = false;
}
}
}
}
frame.PaperColor = (PaperColor)(frame._firstByteHeader % 2);
frame.Layer1.PenColor = (PenColor)((frame._firstByteHeader >> 1) & 3);
frame.Layer2.PenColor = (PenColor)((frame._firstByteHeader >> 3) & 3);
if (i == 0)
{
PreviousFrame = frame;
yield return(frame);
}
else
{
var temp = frame.CreateDiff0(PreviousFrame);
PreviousFrame = frame;
yield return(temp);
}
}
}
