8f7f7dc6ad
add xe::clear_lowest_bit, use it in place of shift-andnot in some bit iteration code make is_allocated_ and is_enabled_ volatile in xma_context preallocate avpacket buffer in XMAContext::Setup, the reallocations of the buffer in ffmpeg were showing up on profiles check is_enabled and is_allocated BEFORE locking an xmacontext. XMA worker was spending most of its time locking and unlocking contexts Removed XeDMAC, dma:: namespace. It was a bad idea and I couldn't make it work in the end. Kept vastcpy and moved it to the memory namespace instead Made the rest of global_critical_region's members static. They never needed an instance. Removed ifdef'ed out code from ring_buffer.h Added EventInfo struct to threading, added Event::Query to aid with implementing NtQueryEvent. Removed vector from WaitMultiple, instead use a fixed array of 64 handles that we populate. WaitForMultipleObjects cannot handle more than 64 objects. Remove XE_MSVC_OPTIMIZE_SMALL() use in x64_sequences, x64 backend is now always size optimized because of premake Make global_critical_region_ static constexpr in shared_memory.h to get rid of wasteage of 8 bytes (empty class=1byte, +alignment for next member=8) Move trace-related data to the tail of SharedMemory to keep more important data together In IssueDraw build an array of fetch constant addresses/sizes, then pre-lock the global lock before doing requestrange for each instead of individually locking within requestrange for each of them Consistent access specifier protected for pm4_command_processor_declare Devirtualize WriteOneRegisterFromRing. Move ExecutePacket and ExecutePrimaryBuffer to pm4_command_buffer_x Remove many redundant header inclusions access xenia-gpu Minor microoptimization of ExecutePacketType0 Add TextureCache::RequestTextures for batch invocation of LoadTexturesData Add TextureCache::LoadTexturesData for reducing the number of times we release and reacquire the global lock. Ideally you should hold the global lock for as little time as possible, but if you are constantly acquiring and releasing it you are actually more likely to have contention Add already_locked param to ObjectTable::LookupObject to help with reducing lock acquire/release pairs Add missing checks to XAudioRegisterRenderDriverClient_entry. this is unlikely to fix anything, it was just an easy thing to do Add NtQueryEvent system call implementation. I don't actually know of any games that need it. Instead of using std::vector + push_back in KeWaitForMultipleObjects and xeNtWaitForMultipleObjectsEx use a fixed size array of 64 and track the count. More than 64 objects is not permitted by the kernel. The repeated reallocations from push_back were appearing unusually high on the profiler, but were masked until now by waitformultipleobjects natural overhead Pre-lock the global lock before looking up each handle for xeNtWaitForMultipleObjectsEx and KeWaitForMultipleObjects. Pre-lock before looking up the signal and waiter in NtSignalAndWaitForSingleObjectEx add missing checks to NtWaitForMultipleObjectsEx Support pre-locking in XObject::GetNativeObject |
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|---|---|---|
| .github | ||
| android/android_studio_project | ||
| assets | ||
| docs | ||
| src/xenia | ||
| third_party | ||
| tools | ||
| .appveyor.yml | ||
| .azure-pipelines.yml | ||
| .clang-format | ||
| .drone.star | ||
| .gdbinit | ||
| .gitattributes | ||
| .gitignore | ||
| .gitmodules | ||
| LICENSE | ||
| README.md | ||
| premake5.lua | ||
| xb | ||
| xb.bat | ||
| xb.ps1 | ||
| xenia-build | ||
| xeniarc | ||
README.md
Xenia - Xbox 360 Emulator
Xenia is an experimental emulator for the Xbox 360. For more information, see the main Xenia wiki.
Interested in supporting the core contributors? Visit Xenia Project on Patreon.
Come chat with us about emulator-related topics on Discord.
For developer chat join #dev but stay on topic. Lurking is not only fine, but encouraged!
Please check the FAQ page before asking questions.
We've got jobs/lives/etc, so don't expect instant answers.
Discussing illegal activities will get you banned.
Status
| Buildbot | Status | Releases |
|---|---|---|
| Windows | Latest ◦ All | |
| Linux |  |
Quite a few real games run. Quite a few don't. See the Game compatibility list for currently tracked games, and feel free to contribute your own updates, screenshots, and information there following the existing conventions.
Disclaimer
The goal of this project is to experiment, research, and educate on the topic of emulation of modern devices and operating systems. It is not for enabling illegal activity. All information is obtained via reverse engineering of legally purchased devices and games and information made public on the internet (you'd be surprised what's indexed on Google...).
Quickstart
See the Quickstart page.
Building
See building.md for setup and information about the
xb script. When writing code, check the style guide
and be sure to run clang-format!
Contributors Wanted!
Have some spare time, know advanced C++, and want to write an emulator? Contribute! There's a ton of work that needs to be done, a lot of which is wide open greenfield fun.
For general rules and guidelines please see CONTRIBUTING.md.
Fixes and optimizations are always welcome (please!), but in addition to that there are some major work areas still untouched:
- Help work through missing functionality/bugs in games
- Reduce the size of Xenia's huge log files
- Skilled with Linux? A strong contributor is needed to help with porting
See more projects good for contributors. It's a good idea to ask on Discord and check the issues page before beginning work on something.
FAQ
See the frequently asked questions page.