ClassiCube/misc/macOS/mac_icon_gen.cs

using System.Drawing.Imaging;
using System.Drawing;
using System.IO;

namespace test 
{
	public static class Program 
	{
		const string src = "CCicon.ico";
		const string dst = "_CCIcon_mac.h";
		
		static void DumpIcon(StreamWriter sw, int width, int height) {
			using (Icon icon = new Icon(src, width, height)) {
				using (Bitmap bmp = icon.ToBitmap()) {
					for (int y = 0; y < bmp.Height; y++) {
						for (int x = 0; x < bmp.Width; x++) {
							Color c = bmp.GetPixel(x, y);
							
							int r = c.R * c.A / 255;
							int g = c.G * c.A / 255;
							int b = c.B * c.A / 255;
							int p = (r << 24) | (g << 16) | (b << 8) | c.A;
							sw.Write("0x" + ((uint)p).ToString("X8") + ",");
						}
						sw.WriteLine();
					}
				}
			}
		}
		
		public static void Main(string[] args) {
			using (StreamWriter sw = new StreamWriter(dst)) {
				sw.WriteLine("/* Generated using misc/macOS/mac_icon_gen.cs */");
				sw.WriteLine("");
				sw.WriteLine("static const unsigned int CCIcon_Data[] = {");
				DumpIcon(sw, 64, 64);
				sw.WriteLine("};");
				sw.WriteLine("static const int CCIcon_Width  = 64;");
				sw.WriteLine("static const int CCIcon_Height = 64;");
			}
		}
	}
}