>is WinSys the final element required to get Gallium's 3D drivers working on Amiga OS?
No in fact it seems to be the first step :-/
(just my point of view : I am not an os4 dev)
WinSys manage screen & textures allocation on the video card
So porting Gallium3D (even as software-only) need to have a screen to render
Mesa/Gallium3D with software rendering only has been reported to already exist on OS4 ... I suppose it is too slow to be available
(just my point of view : I am not an os4 dev)
31 march 2013
http://blog.hyperion-entertainment.biz/?p=863"•Gallium : bumped to Mesa 9.1, i.e. OpenGL 3.1. Software renderer already implemented, work on hardware accelerated drivers within the framework of Gallium will benefit substantially by the experience gained developing Warp3D drivers for the AMD Radeon Evergreen range (Radeon HD 5xxx/6xxx)."
About WinSys functions more infos here ("pipe" mean "Gallium3D") :
http://dri.freedesktop.org/doxygen/ga ... 663c77af5281412f554de5e52Alain Thellier