改变分辨率在XNA -屏幕只是黑色之后

我正在用最新的XNA (c#)编写一款2D游戏。我正在对旧代码进行一些修改，并刚刚放回按钮以更改分辨率。然而，在切换全屏模式或更改窗口大小/分辨率后，屏幕永远是黑色的(我的清晰屏幕呼叫的颜色)，尽管游戏仍然运行，因为我可以通过按键退出它。这在我以前的版本中没有发生-它都工作得很好-但是我能找到的相关代码没有区别。然而，我确实重做了我的图形加载，使用我自己的纹理加载器而不是内容加载器-这可能是问题吗?

如果没有其他选择，是否有一种简单的方法使游戏重新启动，因为图像是ok的，并在重新启动后的选定格式?

 public override void Click()
    {
        base.Click();
        Settings.Default.screenWidth = resolution[0];
        Settings.Default.screenHeight = resolution[1];
        Settings.Default.Save();
        Variables.screenWidth = Settings.Default.screenWidth;
        Variables.screenHeight = Settings.Default.screenHeight;
        Game1.graphics.PreferredBackBufferWidth = Variables.screenWidth;
        Game1.graphics.PreferredBackBufferHeight = Variables.screenHeight;
        Game1.graphics.ApplyChanges();
    }

谢谢!

编辑:我的纹理加载代码-加载包含在enum中的名称的所有文件texture2d ..

public static void LoadAll(string subFolder)
    {
        List<string> s = Directory.GetFiles(path + "''" + subFolder, "*.png", SearchOption.AllDirectories).ToList<string>();
        foreach (string S in s)
        {
            if (Enum.IsDefined(typeof(T), Path.GetFileNameWithoutExtension(S)))
            {
                FileStream stream = new FileStream(S, FileMode.Open);
                Texture2D t = Texture2D.FromStream(Game1.graphics.GraphicsDevice, stream);
                RenderTarget2D result = null;
                //Setup a render target to hold our final texture which will have premulitplied alpha values
                result = new RenderTarget2D(Game1.graphics.GraphicsDevice, t.Width, t.Height);
                Game1.graphics.GraphicsDevice.SetRenderTarget(result);
                Game1.graphics.GraphicsDevice.Clear(Microsoft.Xna.Framework.Color.Black);
                //Multiply each color by the source alpha, and write in just the color values into the final texture
                BlendState blendColor = new BlendState();
                blendColor.ColorWriteChannels = ColorWriteChannels.Red | ColorWriteChannels.Green | ColorWriteChannels.Blue;
                blendColor.AlphaDestinationBlend = Blend.Zero;
                blendColor.ColorDestinationBlend = Blend.Zero;
                blendColor.AlphaSourceBlend = Blend.SourceAlpha;
                blendColor.ColorSourceBlend = Blend.SourceAlpha;

                Game1.spriteBatch.Begin(SpriteSortMode.Immediate, blendColor);
                Game1.spriteBatch.Draw(t, t.Bounds, Microsoft.Xna.Framework.Color.White);
                Game1.spriteBatch.End();
                //Now copy over the alpha values from the PNG source texture to the final one, without multiplying them
                BlendState blendAlpha = new BlendState();
                blendAlpha.ColorWriteChannels = ColorWriteChannels.Alpha;
                blendAlpha.AlphaDestinationBlend = Blend.Zero;
                blendAlpha.ColorDestinationBlend = Blend.Zero;
                blendAlpha.AlphaSourceBlend = Blend.One;
                blendAlpha.ColorSourceBlend = Blend.One;
                Game1.spriteBatch.Begin(SpriteSortMode.Immediate, blendAlpha);
                Game1.spriteBatch.Draw(t, t.Bounds, Microsoft.Xna.Framework.Color.White);
                Game1.spriteBatch.End();
                //Release the GPU back to drawing to the screen
                Game1.graphics.GraphicsDevice.SetRenderTarget(null);

                t = result;
                textureDictionary.Add(Path.GetFileNameWithoutExtension(S), t);
            }
           // else
            //  Console.WriteLine("Did not load -- " + Path.GetFileNameWithoutExtension(S) + " -- (add to enum to enable loading)");
        }
    }

编辑:以下建议的工作代码-可能不是最有效的，但它工作!

public static void LoadAll(string subFolder)
    {
        List<string> s = Directory.GetFiles(path + "''" + subFolder, "*.png", SearchOption.AllDirectories).ToList<string>();
        foreach (string S in s)
        {
            if (Enum.IsDefined(typeof(T), Path.GetFileNameWithoutExtension(S)))
            {
                FileStream stream = new FileStream(S, FileMode.Open);
                Texture2D t = Texture2D.FromStream(Game1.graphics.GraphicsDevice, stream);
                RenderTarget2D result = null;
                Texture2D resultTexture;
                //Setup a render target to hold our final texture which will have premulitplied alpha values
                result = new RenderTarget2D(Game1.graphics.GraphicsDevice, t.Width, t.Height);
                Game1.graphics.GraphicsDevice.SetRenderTarget(result);
                Game1.graphics.GraphicsDevice.Clear(Microsoft.Xna.Framework.Color.Black);
                //Multiply each color by the source alpha, and write in just the color values into the final texture
                BlendState blendColor = new BlendState();
                blendColor.ColorWriteChannels = ColorWriteChannels.Red | ColorWriteChannels.Green | ColorWriteChannels.Blue;
                blendColor.AlphaDestinationBlend = Blend.Zero;
                blendColor.ColorDestinationBlend = Blend.Zero;
                blendColor.AlphaSourceBlend = Blend.SourceAlpha;
                blendColor.ColorSourceBlend = Blend.SourceAlpha;

                Game1.spriteBatch.Begin(SpriteSortMode.Immediate, blendColor);
                Game1.spriteBatch.Draw(t, t.Bounds, Microsoft.Xna.Framework.Color.White);
                Game1.spriteBatch.End();
                //Now copy over the alpha values from the PNG source texture to the final one, without multiplying them
                BlendState blendAlpha = new BlendState();
                blendAlpha.ColorWriteChannels = ColorWriteChannels.Alpha;
                blendAlpha.AlphaDestinationBlend = Blend.Zero;
                blendAlpha.ColorDestinationBlend = Blend.Zero;
                blendAlpha.AlphaSourceBlend = Blend.One;
                blendAlpha.ColorSourceBlend = Blend.One;
                Game1.spriteBatch.Begin(SpriteSortMode.Immediate, blendAlpha);
                Game1.spriteBatch.Draw(t, t.Bounds, Microsoft.Xna.Framework.Color.White);
                Game1.spriteBatch.End();
                //Release the GPU back to drawing to the screen
                Game1.graphics.GraphicsDevice.SetRenderTarget(null);
                resultTexture = new Texture2D(Game1.graphics.GraphicsDevice, result.Width, result.Height);
                Color[] data = new Color[result.Height * result.Width];
                Color[] textureColor = new Color[result.Height * result.Width];
                result.GetData<Color>(textureColor);
                resultTexture.SetData(textureColor);
                textureDictionary.Add(Path.GetFileNameWithoutExtension(S), resultTexture);
            }
           // else
            //  Console.WriteLine("Did not load -- " + Path.GetFileNameWithoutExtension(S) + " -- (add to enum to enable loading)");
        }
    }