转换的.dds为.png格式：是真的XNA这令人费解？ [英] Converting .dds to .png: is XNA really this convoluted?

问题描述

我有一个文件的.dds，我想.png文件。虽然我已经发现了中的< A HREF =htt​​p://www.mastropaolo.com/devildotnet/相对=nofollow> DevIL.NET库，该API的设计有一个静态类不进行并行化，所以我希望能找到另一种方法。这使我XNA。

I have a .dds file and I want a .png file. Although I already found out about the DevIL.NET library, the API design there of one static class does not parallelize, so I am hoping to find another method. This led me to XNA.

不过，这里是多远我有这个想法了......

But, here's how far I got with that idea...

• 确定，它看起来像我希望这个的Texture2D 类;那么我可以叫 myTexture2D.SaveAsPng 。


• 可是我怎么得到那些从我的.dds文件的一个？那么文档似乎表明我想用 myContentManager.Load<的Texture2D方式>


• 呵呵废话，那是不是，这是某种形式的游戏内容管理系统。好了，我的搜索​​似乎已经变成了很多 myTexture2D.LoadFile 的用途;我会去试试。


• 呃我缺少的程序集引用的东西？哦，不，我明白了，他们去除了3.1和4.0，真棒之间的方法。好了，好了，这是一个有点讨厌，但 myTexture2D.LoadStream 不是一个真正的问题。


• 等待什么，现在是这样？它想要一个的GraphicsDevice ？嗯，它看起来像人们通常得到通过那些之一的 GraphicsDeviceManager ...哦，等等，我再也不走这路，没有更多的经理给我的。


• 我想我应该手动实例化这个事情。确定以及这是不是太难... VAR myGraphicsDevice =新的GraphicsDevice（GraphicsAdapter.DefaultAdapter，GraphicsProfile.HiDef，（嗯哦，这是什么 PresentationParameters 的事情以及确定我只是尝试新PresentationParameters（））;


• 嘛抛出一个例外。他们想要一个... DeviceWindowHandle 在我的 PresentationParameters ？但是我正在运行控制台APP！

• OK, it looks like I want this Texture2D class; then I can call myTexture2D.SaveAsPng.
• But how do I get one of those from my .dds file? Well the documentation seems to indicate I want to use myContentManager.Load<Texture2D>.
• Oh crap, that wasn't it, that's some kind of game content management system. Well, my searching seems to have turned up a lot of uses of myTexture2D.LoadFile; I'll go for that.
• Uh am I missing an assembly reference or something? Oh no, I get it, they removed that method between 3.1 and 4.0, awesome. OK, well, it's a bit more annoying, but myTexture2D.LoadStream isn't really a problem.
• Wait what's this now? It wants a GraphicsDevice? Hmm it looks like one usually gets one of those via a GraphicsDeviceManager... oh wait, I'm not going down that path again, no more Managers for me.
• I guess I'm supposed to instantiate this thing manually. OK well this isn't too hard... var myGraphicsDevice = new GraphicsDevice(GraphicsAdapter.DefaultAdapter, GraphicsProfile.HiDef, (uh oh what is this PresentationParameters thing well OK I'll just try new PresentationParameters());.
• Well that threw an exception. They want... a DeviceWindowHandle in my PresentationParameters? BUT I'M RUNNING A CONSOLE APP!!

所以我真的很希望有一个这样做的少令人费解的方式，也许某种违约的GraphicsDevice 我可以使用，感觉非常愚蠢创建一个整个窗口刚刚转换的.dds为.png格式。

So I'm really hoping there's a less convoluted way of doing this; perhaps some kind of default GraphicsDevice I could use. It feels pretty silly to create a whole window just to convert .dds to .png.

另类的建议，我想，虽然它很可能是值得理解如何使用在一般的非XNA代码XNA。

Alternative suggestions for my conversion problem welcome, I guess, although it would probably be worthwhile to understand how to use XNA from non-XNA code in general.

推荐答案

如果您有需要创建一个XNA图形设备，在这个答案应该有些帮助。

If you have a command line app that needs to create an XNA graphics device, the code in this answer should be of some assistance.

在简单地说，你需要一些从的WinForms样品类，以避免浪费时间创建一个图形设备服务等方面（尤其是类的ServiceContainer 和 GraphicsDeviceService ）。

In a nutshell, you need some of the classes from the WinForms sample to avoid having to mess around creating a graphics device services and so on (specifically the classes ServiceContainer and GraphicsDeviceService).

然后，你可以这样做：

Form form = new Form(); // Dummy form for creating a graphics device
GraphicsDeviceService gds = GraphicsDeviceService.AddRef(form.Handle,
        form.ClientSize.Width, form.ClientSize.Height);

ServiceContainer services = new ServiceContainer();
services.AddService<IGraphicsDeviceService>(gds);
content = new ContentManager(services, "Content");

田田 - 现在你有一个工作 ContentManager 你可以用它来装载什么东西。我相信你应该能够得到实际的的GraphicsDevice 从 GraphicsDeviceService 了。

Tada - now you have a working ContentManager that you can use to load stuff. I believe you should be able to get the actual GraphicsDevice from the GraphicsDeviceService, too.

永远不会显示您所创建的窗体。记住引用 System.Windows.Forms.dll中在您的项目

The form you create is never displayed. Remember to reference System.Windows.Forms.dll in your project.

免责声明：本是为XNA 3.1编写。我还没有在4.0测试过，但我怀疑它会很少或根本没有修改工作。

Disclaimer: This was written for XNA 3.1. I haven't tested it in 4.0, but I suspect it will work with little or no modification.

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