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Keith Packard Outlines "DRI-Next" Plans

X.Org

Published on 29 September 2012 05:30 AM EDT
Written by Michael Larabel in X.Org
6 Comments

Keith Packard has outlined plans for "DRI-Next", the improvements to the Direct Rendering Infrastructure that were brewed earlier this month at XDC2012 N├╝rnberg.

As written about in an earlier Phoronix article in detail, "DRI3" was proposed during the development event last week. Keith Packard and Eric Anholt came up with some ideas while consuming some tasty Franconian beverages for improving DRI. There's also the video of the XDC2012 updated DRI presentation.

The problems they acknowledge with DRI2 is that there's potentially a damaged/torn frame when resizing an X window, no information about back-buffer contexts, unpurgable stale buffers, driver-specific buffers, and GEM flink has a lot of issues.

The proposed changes for DRI would come down to eliminating DRI/DRM magic-cookie based authentication, allocate all buffers in the application, present buffers through DMA-BUF, changing how buffer allocations are managed, notifying applocations of idle buffers, and releasing buffer memory.

At this time it's not known whether these DRI improvements would materialize as "DRI3" or would be left as DRI2, thus Keith is referring to it as "DRI-Next" for the time being.

The new DRI plans are formally outlined on Keith's blog.

About The Author
Michael Larabel is the principal author of Phoronix.com and founded the web-site in 2004 with a focus on enriching the Linux hardware experience and being the largest web-site devoted to Linux hardware reviews, particularly for products relevant to Linux gamers and enthusiasts but also commonly reviewing servers/workstations and embedded Linux devices. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics hardware drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated testing software. He can be followed via and or contacted via .
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