Hey, On Wed, Jan 14, 2015 at 01:28:57PM +0100, Jaroslav Reznik wrote: > = Proposed Self Contained Change: Wine to use mesa Direct3D = > https://fedoraproject.org/wiki/Changes/Wine_to_use_mesa_Direct3D > > Change owner(s): Igor Gnatenko <ignatenkobrain@xxxxxxxxxxxxxxxxx> > > Enhancing mesa and wine with Direct3D9 support will increase performance and > reduce resource usage in applications which using D3D9 framework. > > == Detailed Description == > When playing d3d9 games on Wine, their d3d9 calls are translated to OpenGL. > This is complicated process, because you have to deal with different drivers > having different extensions available, and the fact that opengl and d3d9 don't > map perfectly together. Gallium Nine implements the d3d9 API with Gallium > internal API, which maps better to d3d9 than OpenGL. You remove some layers of > translation in the process which enables better performance. Gallium Nine is > not as mature as Wine OpenGL translation, and it is likely to have more bugs, > but when the games work, you can expect 5-10% improvement for gpu limited > games, or much more (sometimes 100%) for cpu limited games. > > what is Gallium: Gallium is an internal graphic driver abstraction of Mesa to > enable support of non-opengl languages more easily (it is used for vdpau and > vaapi on r600/radeonsi for example). It is used by nouveau and r300 up to > radeonsi for AMD. Intel OpenGL support doesn't use gallium, but a gallium > driver named ilo exists, but isn't sponsored by Intel. > > In practice, games have also smoother frame rate on Gallium Nine. Gallium Nine > has good DRI_PRIME support, and if you have a system with an iGPU+dGPU, you > can play without issues with the parameters DRI_PRIME=1 thread_submit=true > > https://wiki.ixit.cz/d3d9 > The wiki link doesn't seem to work.. Is it possible for the user to tell wine which backend to use? OpenGL or Gallium-Nine ? -- Pasi -- devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/devel Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct
