1 files changed, 113 insertions, 0 deletions
diff --git a/Bitmap.cs b/Bitmap.cs
new file mode 100644
index 0000000..e508d3d
--- /dev/null
+++ b/Bitmap.cs
@@ -0,0 +1,113 @@
+using System.Buffers.Binary;
+using System.IO.Compression;
+using Raylib_cs;
+
+namespace OnekoOnline;
+
+class Bitmap : IDisposable
+{
+    public readonly int Width;
+    public readonly int Height;
+    public readonly Texture2D Texture;
+
+    readonly byte[] SerializedData;
+
+    public Bitmap(Image img)
+    {
+        Width = img.Width;
+        Height = img.Height;
+        Texture = Raylib.LoadTextureFromImage(img);
+
+        //Get Data for Serialization
+        Color[] colors = new Color[Width*Height];
+        int i = 0;
+        for (int x = 0; x < Width; x++) {
+            for (int y = 0; y < Height; y++) {
+                colors[i] = Raylib.GetImageColor(img, x, y);
+                i++;
+            }
+        }
+
+        byte[] data = new byte[(colors.Length*4) + (sizeof(short)*2)];
+        BinaryPrimitives.WriteInt16LittleEndian(data.AsSpan(0, sizeof(short)), (short)Width);
+        BinaryPrimitives.WriteInt16LittleEndian(data.AsSpan(sizeof(short), sizeof(short)), (short)Height);
+        int position = sizeof(short)*2;
+        for (int c = 0; c < colors.Length; c++) {
+            data[position] = colors[c].R;
+            data[position+1] = colors[c].G;
+            data[position+2] = colors[c].B;
+            data[position+3] = colors[c].A;
+            position += 4;
+        }
+
+        using MemoryStream stream = new();
+        using DeflateStream compressor = new(stream, CompressionLevel.Optimal);
+        compressor.Write(data);
+        compressor.Close();
+        SerializedData = stream.ToArray();
+
+        Raylib.UnloadImage(img);
+    }
+
+    Bitmap(Image img, byte[] serializedData)
+    {
+        Width = img.Width;
+        Height = img.Height;
+        SerializedData = serializedData;
+
+        Texture = Raylib.LoadTextureFromImage(img);
+        Raylib.UnloadImage(img);
+    }
+
+    public static Bitmap FromFile(string path)
+    {
+        if (!File.Exists(path) || new FileInfo(path).Length > 40000 || !path.Contains(".png"))
+        return new Bitmap(Raylib.GenImageChecked(32, 32, 4, 4, Color.BLACK, Color.PINK));
+
+        byte[] memory = File.ReadAllBytes(path);
+        return FromPNGMemory(memory);
+    }
+
+    public static Bitmap FromPNGMemory(byte[] memory)
+    {
+        return new Bitmap(Raylib.LoadImageFromMemory(".png", memory));
+    }
+
+    public static Bitmap Deserialize(ReadOnlySpan<byte> span)
+    {
+        byte[] compressed = span.ToArray();
+        byte[] data;
+        {
+            using MemoryStream input = new(compressed);
+            using MemoryStream output = new();
+            using DeflateStream decompressor = new(input, CompressionMode.Decompress);
+            decompressor.CopyTo(output);
+            data = output.ToArray();
+        }
+
+        int width = BinaryPrimitives.ReadInt16LittleEndian(data.AsSpan(0, sizeof(short)));
+        int height = BinaryPrimitives.ReadInt16LittleEndian(data.AsSpan(sizeof(short), sizeof(short)));
+        Image img = Raylib.GenImageChecked(width, height, 4, 4, Color.PINK, Color.BLACK);
+
+        int i = sizeof(short)*2;
+        for (int x = 0; x < width; x++) {
+            for (int y = 0; y < height; y++) {
+                Color color = new(data[i], data[i+1], data[i+2], data[i+3]);
+                Raylib.ImageDrawPixel(ref img, x, y, color);
+                i += 4;
+            }
+        }
+
+        return new Bitmap(img, compressed);
+    }
+
+    public byte[] Serialize()
+    {
+        return SerializedData;
+    }
+
+    public void Dispose()
+    {
+        Raylib.UnloadTexture(Texture);
+    }
+}
+\ No newline at end of file