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Structured roadmap for RPCS3 development

This is a non-exhaustive list of current goals made possible with the support of our generous patrons.

Short term goals

  • Investigate game specific bugs like the overly bright bloom in Persona 5 or the overly dark lighting in Demon’s Souls.
  • Improve performance and compatibility of all renderers.
  • Enable Vulkan on Linux, which will bring a tremendous performance improvement for some games.
  • Implement missing functionality that will fix various bugs in different games. For example, the broken shadows in many games including Demon’s Souls depend on this task.
  • Automatically add disc games running from external locations to the game list.
  • Parse .eh_frame section in PPU analyser and use this information in LLVM recompiler.
  • Configure a buildbot to automatically upload Linux binaries.
  • Investigate Linux specific bugs. Avoid using executable dir completely.
  • Start to improve compatibility by fixing bugs and missing functionality.

Medium term goals

  • GUI: Use Qt instead of wxWidgets. (#2645)
  • Properly support some PS3 features like MSAA that are lacking at the moment.
  • Implement RSX reports which are missing at the moment.
  • Improve audio and video decoders for better speed and compatibility.
  • Improve controller support. This includes emulated controllers (with mouse or keyboard) and real controllers as well.
  • Add low-latency ASIO audio backend for Windows. With ASIO4ALL, it will work great on most modern hardware.
  • Implement LLVM recompiler backend for SPU. This is actually a tremendous amount of work to make it useful, but it will also give the very important speed improvement (unless the SPU is not used at all).
  • Improve LLVM flexibility. For example, it could scan game folder for all executables and SPRX modules and recompile them ahead of time.
  • Implement PPU executable chain-loading.
  • Improve solution structure, move and rename some files.
  • Improve SPRX loading and unloading. This increases compatibility a lot.
  • Implement missing syscalls. Allow to LLE more system modules.
  • Write automatic tests to minimize bugs.
  • Implement savedata manager. Currently it doesn't have user interface.
  • Implement precise PPU interpreter.
  • Enable hardware acceleration for decryption (AES-NI). (#2457)

Long term goals

  • Enable higher rendering resolution to play games at any resolution, for example 4k instead of 720p in Demon’s Souls or Persona 5.
  • Enable extra graphics options to support extra rendering features, such as custom anti-aliasing modes.
  • Support booting from original game discs.
  • Implement user manager.
  • Support mic, camera, USB peripherals, etc.
  • Implement network functionality.
  • Implement every system module in the emulator. This will allow the emulator to work without the PS3 firmware.
  • Continue to improve speed, accuracy, and compatibility. This is a never-ending goal.

For developers

  • Implement MFC_DMA_TAG_CMD_STALL_NOTIFY_EVENT and other SPU events.
  • Return error_code from syscalls and functions to enable error reporting.
  • Improve embedded debugging tools (CPU, RSX, Kernel Explorer).
  • Implement simple thread pool (Thread.cpp)
  • Implement BPIP for synchronization primitives.
  • Implement minimalistic YAML adaptor in "C++11" style which preserves map element order.

Completed goals

  • Implemented priority-based scheduler for PPU threads. This is an important core change, fixing various crashes and freezes. (#2349)
  • Implemented PS3 firmware installer. Users only need to provide correct PS3UPDAT.PUP file and it is automatically unpacked into /dev_flash. (#2386, #2398)
  • Implemented SPRX decryption on the fly (#2367).
  • Fixed early crashes on Linux. Now also creates dev_hdd0 and other dirs. (#2423)
  • Cache compiled LLVM modules. You shouldn't recompile the same executable twice. (#2432)
  • Implemented "Automatic LLE configuration" option (enabled by default). This picks the most appropriate system modules (SPRX files). It may be hard to pick them manually. (#2459)
  • Implemented MSELF and SDAT decryption on the fly. No more temporary files and additional steps. Before some games silently failed to boot due to the presence of encrypted SDAT files. (#2468)
  • Added ALSA core audio backend for Linux. (#2654)
  • Controller support: DualShock 4 native support. (#2733, #2792)