Proton to Help to Launch Windows Games on Linux

Valve gave Linux users the opportunity to play more games
23 August 2018   1966

Valve announced the beta version of the Steam Play service with a modified version of Wine, called Proton. It allows you to run Windows games on Linux.

The goal of the project is to provide Linux users with access to more games. Also, the company wants to remove developers from the task of porting games to other platforms, so that they spend more time improving the game process.

Proton features:

  • Launch games directly through the Steam client for Linux with Steamworks and OpenVR support;
  • Support for games using DirectX 11 and 12 without sacrificing performance thanks to the Vulkan API;
  • Support for full-screen mode by stretching the image;
  • Support of all controllers supported by the Windows version of Steam;
  • Increase the performance of multi-threaded games through the collection of patches esync.

The company announced full support for 26 games, including Fallout Shelter and PAYDAY: The Heist. To run games, you must become a beta-testing participant and install the latest versions of NVIDIA 396.51 or Mesa 18.2.0 drivers for AMD and Intel video cards.

Enthusiasts can try to start any game by turning on the Enable Steam Play for all titles option in the settings. Successful and unsuccessful attempts to run are recorded in an online document. Proton's source code is published on GitHub, so users can create their own builds with bug fixes. Proton is written on C++.

Together with attempts to expand the library of games on other platforms, Valve gets rid of the support of old systems. In June 2018, the company announced the end of support for Windows XP and Vista.

LLVM 10.0.0 to be Released

New version of the popular development toolkit brings, among other things, support for the C++ Concepts
26 March 2020   957

After six months of development, the release of the LLVM 10.0 project, a GCC-compatible toolkit (compilers, optimizers, and code generators), compiling programs into an intermediate bitcode of RISC-like virtual instructions (a low-level virtual machine with a multi-level optimization system), is presented. The generated pseudo-code can be converted using the JIT compiler into machine instructions directly at the time of program execution.

Among the new features of LLVM 10.0, there are support for C ++ Concepts (C ++ Concepts), termination of the launch of Clang in the form of a separate process, support for CFG checks (control flow guard) for Windows, and support for new CPU features.

The main innovations of LLVM 10.0:

  • New interprocedural optimizations and analyzers have been added to the Attributor framework. The prediction of the state of 19 different attributes, including 12 attributes of 12 LLVM IR and 7 abstract attributes such as liveness, is provided.
  • New built-in compiler matrix mathematical functions (Intrinsics) have been added, which, when compiled, are replaced by effective vector instructions.
  • Numerous improvements to the backends for the X86, AArch64, ARM, SystemZ, MIPS, AMDGPU, and PowerPC architectures. Added support for Cortex-A65, Cortex-A65AE, Neoverse E1 and Neoverse N1 CPUs. For ARMv8.1-M, ​​the code generation process has been optimized (for example, support for loops with minimal overhead has appeared) and support for auto-vectorization using the MVE extension has been added. Improved support for CPU MIPS Octeon. PowerPC includes vectorization of mathematical routines using the MASSV (Mathematical Acceleration SubSystem) library, improved code generation, and optimized memory access from loops. For x86, the processing of vector types v2i32, v4i16, v2i16, v8i8, v4i8 and v2i8 has been changed.
  • Improved code generator for WebAssembly. Added support for TLS (Thread-Local Storage) and atomic.fence instructions. Significantly expanded support for SIMD. WebAssembly object files added the ability to use function signatures with multiple values.
  • When processing cycles, the MemorySSA analyzer is used to determine the dependencies between different memory operations. MemorySSA can reduce compilation and execution time, or can be used instead of AliasSetTracker without sacrificing performance.
  • The LLDB debugger has significantly improved support for the DWARF v5 format. Improved build support with MinGW and added the initial ability to debug Windows executable files for ARM and ARM64 architectures. Added descriptions of options offered when autocompleting input by pressing tabs.
  • Enhanced LLD Linker Features. Improved support for the ELF format, including full compatibility of glob templates with the GNU linker, added support for the compressed debug sections ".zdebug", added the PT_GNU_PROPERTY property to determine the section (can be used in future Linux kernels), implemented modes "-z noseparate-code", "-z separate-code" and "-z separate-loadable-segments". Improved support for MinGW and WebAssembly.

Get more at the release notes.