public static void Main(string[] args) { FastBitmap bmp = new FastBitmap(args[0]); bmp.Lock(); Console.WriteLine("Opened {0} with size {1}({3})x{2}", Path.GetFileName(args[0]), bmp.Width, bmp.Height, bmp.Subwidth); ScriptEngine script = new ScriptEngine(); script.Register(new RandomGaps()); script.Register(new BitDepth()); script.Register(new ChromaShift()); script.Register(new RandomBytes()); script.Register(new Saturation()); script.Register(new ScanLines()); script.Register(new PngFiltered()); Default = script.Parse(File.ReadAllText(args[1])); Default.Apply(bmp); bmp.Save(args[0] + "-glitched.png"); }
public static FastBitmap Decode(FastBitmap input, FilterType[] filters, FastBitmap output = null) { if (output == null) { output = new FastBitmap(input.Width, input.Height); output.Lock(); } // .NET's Bitmap.Width/Height isn't thread-safe int width = input.Width; int height = input.Height; // decode the first line with zero subtype for (int x = 0; x < width; x++) { output.SetPixel(x, 0, input.GetPixel(x, 0)); } for (int y = 1; y < height; y++) { FilterType type = filters[y]; switch (type) { case FilterType.None: for (int x = 0; x < width; x++) { output.SetPixel(x, y, input.GetPixel(x, y)); } break; case FilterType.Sub: output.SetPixel(0, y, input.GetPixel(0, y)); for (int x = 1; x < width; x++) { Color original = input.GetPixel(x, y); Color left = output.GetPixel(x - 1, y); Color delta = ColorHelpers.OverflowingAdd(original, left); output.SetPixel(x, y, delta); } break; case FilterType.Up: for (int x = 0; x < width; x++) { Color original = input.GetPixel(x, y); Color up = output.GetPixel(x, y - 1); Color delta = ColorHelpers.OverflowingAdd(up, original); output.SetPixel(x, y, delta); } break; case FilterType.Average: output.SetPixel(0, y, input.GetPixel(0, y)); for (int x = 1; x < width; x++) { Color original = input.GetPixel(x, y); Color left = output.GetPixel(x - 1, y); Color up = output.GetPixel(x, y - 1); Color avg = ColorHelpers.Average(left, up); Color delta = ColorHelpers.OverflowingAdd(avg, original); output.SetPixel(x, y, delta); } break; case FilterType.Paeth: output.SetPixel(0, y, input.GetPixel(0, y)); for (int x = 1; x < width; x++) { Color original = input.GetPixel(x, y); Color left = output.GetPixel(x - 1, y); Color up = output.GetPixel(x, y - 1); Color diagonal = output.GetPixel(x - 1, y - 1); Color paeth = ColorHelpers.PickPaeth(left, up, diagonal); Color delta = ColorHelpers.OverflowingAdd(paeth, original); output.SetPixel(x, y, delta); } break; default: throw new Exception("This should never ever happen"); } } return(output); }
public static FastBitmap Encode(FastBitmap input, FilterType[] filters) { FastBitmap ret = new FastBitmap(input.Width, input.Height); ret.Lock(); // .NET's Bitmap.Width/Height isn't thread-safe int width = input.Width; int height = input.Height; // encode the first line with zero subtype for (int x = 0; x < width; x++) { ret.SetPixel(x, 0, input.GetPixel(x, 0)); } Parallel.For(1, input.Height, y => { FilterType type = filters[y]; switch (type) { case FilterType.None: for (int x = 0; x < width; x++) { ret.SetPixel(x, y, input.GetPixel(x, y)); } break; case FilterType.Sub: ret.SetPixel(0, y, input.GetPixel(0, y)); for (int x = 1; x < width; x++) { Color original = input.GetPixel(x, y); Color left = input.GetPixel(x - 1, y); Color delta = ColorHelpers.Delta(original, left); ret.SetPixel(x, y, delta); } break; case FilterType.Up: for (int x = 0; x < width; x++) { Color original = input.GetPixel(x, y); Color up = input.GetPixel(x, y - 1); Color delta = ColorHelpers.Delta(original, up); ret.SetPixel(x, y, delta); } break; case FilterType.Average: ret.SetPixel(0, y, input.GetPixel(0, y)); for (int x = 1; x < width; x++) { Color original = input.GetPixel(x, y); Color left = input.GetPixel(x - 1, y); Color up = input.GetPixel(x, y - 1); Color avg = ColorHelpers.Average(left, up); Color delta = ColorHelpers.Delta(original, avg); ret.SetPixel(x, y, delta); } break; case FilterType.Paeth: ret.SetPixel(0, y, input.GetPixel(0, y)); for (int x = 1; x < width; x++) { Color original = input.GetPixel(x, y); Color left = input.GetPixel(x - 1, y); Color up = input.GetPixel(x, y - 1); Color diagonal = input.GetPixel(x - 1, y - 1); Color paeth = ColorHelpers.PickPaeth(left, up, diagonal); Color delta = ColorHelpers.Delta(original, paeth); ret.SetPixel(x, y, delta); } break; default: throw new Exception("This should never ever happen"); } }); return(ret); }
public static void TestColor(FastBitmap bmp, int x, int y) { Color clr = bmp.GetPixel(x, y); Console.WriteLine("({0},{1}) is {2}, {3}, {4}", x, y, clr.R, clr.G, clr.B); }