150 lines
6.8 KiB
Markdown
150 lines
6.8 KiB
Markdown
Xenia - Xbox 360 Emulator Research Project
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==========================================
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Xenia is an experimental emulator for the Xbox 360.
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Pull requests are welcome but the code is in a very high churn state and may not
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be accepted, so ask in IRC before taking on anything big. Contributions are
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awesome but the focus of the developers is on writing new code, not teaching
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programming or answering questions. If you'd like to casually help out it may
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be better to wait a bit until things calm down and more of the code is documented.
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Come chat with us **about development topics** in [#xenia @ irc.freenode.net](http://webchat.freenode.net?channels=%23xenia&uio=MTE9NzIaa).
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## Status
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Buildbot:
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[](https://buildkite.com/benvanik/xenia)
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Project tracker:
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[](http://waffle.io/benvanik/xenia)
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[](http://waffle.io/benvanik/xenia)
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Some real games run. Most don't. Don't ask if GTA or whatever runs. [Game compatibility list](https://github.com/xenia-project/game-compatibility/issues).
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Watch A-Train HX running at ~60fps (check YouTube playback quality setting):
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[](http://www.youtube.com/watch?v=vE32Z9ytbgU)
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## Disclaimer
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The goal of this project is to experiment, research, and educate on the topic
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of emulation of modern devices and operating systems. **It is not for enabling
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illegal activity**. All information is obtained via reverse engineering of
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legally purchased devices and games and information made public on the internet
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(you'd be surprised what's indexed on Google...).
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## Quickstart
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Windows 8.1+ with Python 2.7 and Visual Studio 2015 installed:
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# Launch the 'Developer Command Prompt for VS2015' command environment
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> git clone https://github.com/benvanik/xenia.git
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> cd xenia
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> xb setup
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# Build on command line:
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> xb build
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# Open Visual Studio (run the 'xenia' project):
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> xb edit
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When fetching updates use `xb pull` to automatically fetch everything and
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update gyp files/etc.
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## Building
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See [building](docs/building.md) for setup and information about the
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`xb` script. When writing code, check the [style guide](docs/style_guide.md)
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and be sure to run clang-format!
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## Contributors Wanted!
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Have some spare time, know advanced C++, and want to write an emulator?
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Contribute! There's a ton of work that needs to be done, a lot of which
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is wide open greenfield fun.
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Fixes and optimizations are always welcome (please!), but in addition to
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that there are some major work areas still untouched:
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* Help work through missing functionality/bugs in game [compat](https://github.com/benvanik/xenia/issues?labels=compat)
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* Add input drivers for [PS4 controllers](https://github.com/benvanik/xenia/issues/60) (or anything else)
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See more projects [good for contributors](https://github.com/benvanik/xenia/issues?labels=good+for+contributors&page=1&state=open). It's a good idea to ask on IRC/the bugs before beginning work
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on something.
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## FAQ
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### Can I get an exe?
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**NO**. I am not releasing binaries - at least not for awhile. Don't be an
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idiot and download a binary claiming to be of this project. In fact, don't
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be an idiot and download *any* binary claiming to be an Xbox 360 or PS3
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emulator from *any* source, especially not YouTube videos and shady websites.
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Come on people. Jeez.
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### What kind of machine do I need to run this?
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You'll need 64-bit Windows 8.1 or 10 with a processor supporting at least AVX -
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in other words, Intel Sandy Bridge or newer. In general if you have to ask
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if your machine is good enough to run games at a decent speed the answer is no.
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### What about Linux/OSX?
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The project is designed to support non-Windows platforms but until it's running
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games it's not worth the maintenance burden. OSX will likely remain unsupported
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until Apple supports OpenGL 4.3 or higher.
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### What kind of GPU do I need?
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OpenGL 4.5 support and drivers are required. This includes Nvidia's GeForce 400
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series and above, and AMD's 5000 series and above.
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To get full speed and compatibility Vulkan/D3D12 may eventually be required.
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### Have you heard of LLVM/asmjit/jitasm/luajit/etc?
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I get asked this about once a day. Yes, I have heard of them. In fact, I spent
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a long time trying them out:
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[LLVM](https://github.com/benvanik/xenia/tree/85bdbd24d1b5923cfb104f45194a96e7ac57026e/src/xenia/cpu/codegen),
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[libjit](https://github.com/benvanik/xenia/tree/eee856be0499a4bc721b6097f5f2b9446929f2cc/src/xenia/cpu/libjit),
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[asmjit](https://github.com/benvanik/xenia/tree/ca208fa60a0285d396409743064784cc2320c094/src/xenia/cpu/x64).
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They don't work for this purpose. I understand if you disagree, but please
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understand that I've spent a significant amount of time on this problem.
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### Why did you do X? Why not just use Y? You should use Y. NIH NIH NIH!
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Trust that I either have a good reason for what I did or have absolutely no
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reason for what I did. This is a large project that I've been working on
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for almost 4 years and in that time new compilers and language specs have
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been released, libraries have been created and died, and I've learned a lot.
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Insulting me will get you ignored.
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### Hey I'm going to go modify every file in the project, ok?
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I welcome contributions, but please try to understand that I cannot accept
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changes that radically alter the structure or content of the code, especially
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if they are aesthetic and even more so if they are from someone who has not
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contributed before. This may seem like common sense, but apparently it isn't.
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If a pull request of this nature is denied that doesn't necessarily mean your
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help is not wanted, just that it may need to be more carefully applied.
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### I have a copy of the XDK. Do you want it?
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No.
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### (some argument over an unimportant technical choice)
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In general: 'I don't care.'
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That means I either really don't care and something is they way it is because
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that was convienient (such as GYP, which I am familiar with), or that
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I don't care because it's not material to the goal of the project. There are
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a million important things that need to be done to get games running and
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going back and forth about unimportant orthogonal issues does not help.
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If you really do have a better way of doing something and can show it, do so.
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Here's a short list of common ones:
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* 'Why Python 2.7? 3 is awesome!' -- agreed, but git-clang-format needs 2.7.
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* 'Why this xb stuff?' -- I like it, it helps me. If you want to
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manually execute commands have fun, nothing is stopping you.
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* 'Why not just take the code from project X?' -- the point of this project
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is to build something better than previous emulator projects, and learn while
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doing it. The easy way is almost never the best way, and is never as fun.
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