using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using SDL2;
using testdrid.SdlWrapper;

namespace SDL2Demo.SdlWrapper
{
    internal class GlContext : IDisposable
    {
        private GlContext() {}

        public static GlContext Create(Window window)
        {
            GlContext child = new GlContext();
            child.Pointer = SDL2.SDL.SDL_GL_CreateContext(window.Pointer);
            if (child.Pointer == IntPtr.Zero)
                throw SdlException.GenerateException();

            SDL.SDL_GL_MakeCurrent(window.Pointer, child.Pointer);
            SDL.SDL_GL_SetSwapInterval(1);
            SDL.SDL_GL_SwapWindow(window.Pointer);

            return child;
        }

        public IntPtr Pointer { get; private set; }

        public void Dispose()
        {
            SDL.SDL_GL_DeleteContext(Pointer);
        }
    }
}