PlayStation 4 emulator for Windows, Linux and macOS written in C++
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Lander Gallastegi f9bbde9c79
video_core: Implement DMA. (#2819)
* Import memory

* 64K pages and fix memory mapping

* Queue coverage

* Buffer syncing, faulted readback adn BDA in Buffer

* Base DMA implementation

* Preparations for implementing SPV DMA access

* Base impl (pending 16K pages and getbuffersize)

* 16K pages and stack overflow fix

* clang-format

* clang-format but for real this time

* Try to fix macOS build

* Correct decltype

* Add testing log

* Fix stride and patch phi node blocks

* No need to check if it is a deleted buffer

* Clang format once more

* Offset in bytes

* Removed host buffers (may do it in another PR)

Also some random barrier fixes

* Add IR dumping from my read-const branch

* clang-format

* Correct size insteed of end

* Fix incorrect assert

* Possible fix for NieR deadlock

* Copy to avoid deadlock

* Use 2 mutexes insteed of copy

* Attempt to range sync error

* Revert "Attempt to range sync error"

This reverts commit dd287b48682b50f215680bb0956e39c2809bf3fe.

* Fix size truncated when syncing range

And memory barrier

* Some fixes (and async testing (doesn't work))

* Use compute to parse fault buffer

* Process faults on submit

* Only sync in the first time we see a readconst

Thsi is partialy wrong. We need to save the state into the submission context itself, not the rasterizer since we can yield and process another sumission (if im not understanding wrong).

* Use spec const and 32 bit atomic

* 32 bit counter

* Fix store_index

* Better sync (WIP, breaks PR now)

* Fixes for better sync

* Better sync

* Remove memory coveragte logic

* Point sirit to upstream

* Less waiting and barriers

* Correctly checkout moltenvk

* Bring back applying pending operations in wait

* Sync the whole buffer insteed of only the range

* Implement recursive shared/scoped locks

* Iterators

* Faster syncing with ranges

* Some alignment fixes

* fixed clang format

* Fix clang-format again

* Port page_manager from readbacks-poc

* clang-format

* Defer memory protect

* Remove RENDERER_TRACE

* Experiment: only sync on first readconst

* Added profiling (will be removed)

* Don't sync entire buffers

* Added logging for testing

* Updated temporary workaround to use 4k pages

* clang.-format

* Cleanup part 1

* Make ReadConst a SPIR-V function

---------

Co-authored-by: georgemoralis <giorgosmrls@gmail.com>
2025-05-22 21:00:15 +03:00
.ci Bump to Clang 19 (#2434) 2025-02-18 15:55:13 +02:00
.github ci: Use mold linker for Linux builds (#2847) 2025-04-27 20:34:59 -07:00
cmake cmake: fix system libusb discovery (#2731) 2025-03-31 22:29:52 +03:00
dist tagged 0.9.0 release 2025-05-22 18:52:44 +03:00
documents build: Target x86-64-v3 CPU architecture (#2934) 2025-05-14 10:37:16 -07:00
externals video_core: Implement DMA. (#2819) 2025-05-22 21:00:15 +03:00
LICENSES audio: Accurate audio output timing. (#1986) 2024-12-31 12:38:52 +02:00
scripts Rewrite Save Data & Impl Save Data Dialog (#824) 2024-09-20 12:34:19 +03:00
src video_core: Implement DMA. (#2819) 2025-05-22 21:00:15 +03:00
.gitignore misc: Add JetBrains build directories to gitignore. (#1573) 2024-11-22 17:36:31 +02:00
.gitmodules externals: Remove winpthreads. (#2932) 2025-05-15 13:59:34 -07:00
CMakeLists.txt video_core: Implement DMA. (#2819) 2025-05-22 21:00:15 +03:00
CMakeSettings.json fix VS intellisense (#1104) 2024-09-27 09:03:42 +03:00
CONTRIBUTING.md Fix typo in CONTRIBUTING.md comment 2024-08-23 18:29:00 -07:00
crowdin.yml Update Crowdin configuration file 2025-02-13 14:50:02 +02:00
LICENSE Initial commit 2022-10-24 12:48:38 +03:00
README.md Discord logo fix on the README. (#2811) 2025-04-19 17:51:59 +03:00
REUSE.toml misc: Few small fixes. (#2780) 2025-04-13 12:10:24 -07:00
shell.nix Update linux build docs (#2474) 2025-02-19 13:29:31 +02:00



shadPS4

General information

shadPS4 is an early PlayStation 4 emulator for Windows, Linux and macOS written in C++.

If you encounter problems or have doubts, do not hesitate to look at the Quickstart.
To verify that a game works, you can look at shadPS4 Game Compatibility.
To discuss shadPS4 development, suggest ideas or to ask for help, join our Discord server.
To get the latest news, go to our X (Twitter) or our website.
For those who'd like to donate to the project, we now have a Kofi page!

Status

Important

shadPS4 is early in development, don't expect a flawless experience.

Currently, the emulator can successfully run games like Bloodborne, Dark Souls Remastered, Red Dead Redemption and many other games.

Why

This project began as a fun project. Given our limited free time, it may take some time before shadPS4 can run more complex games, but we're committed to making small, regular updates.

Building

Important

If you want to use shadPS4 to play your games, you don't have to follow the build instructions, you can simply download the emulator from either the release tab or the action tab.

Windows

Check the build instructions for Windows.

Linux

Check the build instructions for Linux.

macOS

Check the build instructions for macOS.

Important

macOS users need at least macOS 15.4 to run shadPS4. Due to GPU issues there are currently heavy bugs on Intel Macs.

Debugging and reporting issues

For more information on how to test, debug and report issues with the emulator or games, read the Debugging documentation.

Keyboard and Mouse Mappings

Note

Some keyboards may also require you to hold the Fn key to use the F* keys. Mac users should use the Command key instead of Control, and need to use Command+F11 for full screen to avoid conflicting with system key bindings.

Button Function
F10 FPS Counter
Ctrl+F10 Video Debug Info
F11 Fullscreen
F12 Trigger RenderDoc Capture

Note

Xbox and DualShock controllers work out of the box.

Controller button Keyboard equivalent
LEFT AXIS UP W
LEFT AXIS DOWN S
LEFT AXIS LEFT A
LEFT AXIS RIGHT D
RIGHT AXIS UP I
RIGHT AXIS DOWN K
RIGHT AXIS LEFT J
RIGHT AXIS RIGHT L
TRIANGLE Numpad 8 or C
CIRCLE Numpad 6 or B
CROSS Numpad 2 or N
SQUARE Numpad 4 or V
PAD UP UP
PAD DOWN DOWN
PAD LEFT LEFT
PAD RIGHT RIGHT
OPTIONS RETURN
BACK BUTTON / TOUCH PAD SPACE
L1 Q
R1 U
L2 E
R2 O
L3 X
R3 M

Keyboard and mouse inputs can be customized in the settings menu by clicking the Controller button, and further details and help on controls are also found there. Custom bindings are saved per-game. Inputs support up to three keys per binding, mouse buttons, mouse movement mapped to joystick input, and more.

Firmware files

shadPS4 can load some PlayStation 4 firmware files, these must be dumped from your legally owned PlayStation 4 console.
The following firmware modules are supported and must be placed in shadPS4's user/sys_modules folder.

Modules Modules Modules Modules
libSceCesCs.sprx libSceFont.sprx libSceFontFt.sprx libSceFreeTypeOt.sprx
libSceJson.sprx libSceJson2.sprx libSceLibcInternal.sprx libSceNgs2.sprx
libSceRtc.sprx libSceUlt.sprx

Caution

The above modules are required to run the games properly and must be extracted from your PlayStation 4.
We do not provide any information or support on how to do this.

Main team

Logo is done by Xphalnos

Contributing

If you want to contribute, please look the CONTRIBUTING.md file.
Open a PR and we'll check it :)

Translations

If you want to translate shadPS4 to your language we use Crowdin.

Contributors

Special Thanks

A few noteworthy teams/projects who've helped us along the way are:

  • Panda3DS: A multiplatform 3DS emulator from our co-author wheremyfoodat. They have been incredibly helpful in understanding and solving problems that came up from natively executing the x64 code of PS4 binaries

  • fpPS4: The fpPS4 team has assisted massively with understanding some of the more complex parts of the PS4 operating system and libraries, by helping with reverse engineering work and research.

  • yuzu: Our shader compiler has been designed with yuzu's Hades compiler as a blueprint. This allowed us to focus on the challenges of emulating a modern AMD GPU while having a high-quality optimizing shader compiler implementation as a base.

  • felix86: A new x86-64 → RISC-V Linux userspace emulator

License