[how-to] 3d hardware acc with ati open source driver.

[DaggyStyle]

I gave up and gone layman. works.
_________________
Only two things are infinite, the universe and human stupidity and I'm not sure about the former - Albert Einstein

[jasn]

Using the x11 overlay most recent mesa live ebuild I've noticed that there are a number of USE flags, both old and new, and I'd like to ask for comments as to their use. The following are the current mesa USE flags and definitions from the Gentoo Linux Use Variable Descriptions page;

classic - Build drivers based on the classic architecture
egl - Enable EGL support
gallium - Build drivers based on Gallium3D, the new architecture for 3D graphics drivers
gbm - Enable the Graphics Buffer Manager for EGL on KMS
gles - Enable GLES support
llvm - Enable LLVM backend for Gallium3D
openvg - Enable the OpenVG 2D acceleration API for Gallium3D
pax_kernel - Enable if the user plans to run the package under a pax enabled hardened kernel
pic - disable optimized assembly code that is not PIC friendly
shared-dricore - Enable sharing of common code for classic DRI drivers
shared-glapi - Enable sharing of common code for the OpenGL API

and here are the USE flags from the x11 overlay mesa live ebuild, that are not yet documented;

d3d
g3dvl
gles1
gles2
osmesa
xvmc - (must be) Enable support for XVideo Motion Compensation (accelerated mpeg playback)
vdpau
wayland

The d3d USE flag appears to provide Windows Direct3D support, and have app-emulation/wine has a dependency. Also if the xvmc USE flag is enabled, then the g3dvl USE flag is also required to be enabled. The vdpau USE flag has been previously discussed in this thread as providing VDPAU support, and the wayland USE flag appears to provide wayland support, and has x11-base/wayland, (which is available as a live ebuild in the x11 overlay, but not in portage yet), as a dependency.

My system uses an ATI 6970M GPU, and I was reading somewhere that it's a good idea, if you're using r600 GPUs, to build mesa without the classic USE flag enabled and with the gallium USE flag enabled, (and with only the R600 VIDEO_CARD set). Looking for any related comments to that, or any of the other USE flags. My current configuration is;

[Ant P.]

DRI1 support has been removed in mesa git, so you can't build with +classic anyway.

[jasn]

Well I was able to emerge the x11 overlay mesa live ebuild with the classic USE flag enabled, but it may do nothing now. (I've since added -classic to my mesa USE flags). I expect they'll remove the USE flag at some point.

Thanks..