Latest compatible version of Classicube from the original GitHub repository (https://github.com/ClassiCube/ClassiCube) that can be compiled on Classicube for PowerMac PPC running Mac OS X 10.4.

misc/bitmap_font_gen.cs

@@ -0,0 +1,41 @@
+void Main()
+{
+	Console.WriteLine("static cc_uint8 font_bitmap[][8] = {");
+	using (Bitmap bmp = new Bitmap(@"C:\classicube-dev\default.png"))
+	{
+		for (int CY = 0; CY < 16; CY++)
+			for (int CX = 0; CX < 16; CX++)
+				DecodeTile(bmp, CX, CY);
+	}
+	Console.WriteLine("}");
+}
+
+static void DecodeTile(Bitmap bmp, int cx, int cy) {
+	int c = (cy << 4) | cx;
+	if (c <= 32 || c >= 127) return;
+	
+	int X = cx * 8, Y = cy * 8;
+	
+	Console.Write("\t{ ");
+	
+	for (int y = Y; y < Y + 8; y++) {
+		uint mask = 0;
+		int shift = 0;
+		
+		for (int x = X; x < X + 8; x++, shift++) {
+			Color P = bmp.GetPixel(x, y);
+			
+			if (P.A == 0) {
+				mask |= 0u << shift;
+			} else if (P.R == 255 && P.G == 255 && P.B == 255 && P.A == 255) {
+				mask |= 1u << shift;
+			} else { 
+				throw new InvalidOperationException("unsupported colour" + P); 
+			}
+		}
+		
+		string suffix = y == Y + 7 ? " " : ",";
+		Console.Write("0x" + mask.ToString("X2") + suffix);
+	}
+	Console.WriteLine("}, /* " + (char)c + " */");
+}