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Video Support Still Brewing For GLAMOR Acceleration

X.Org

Published on 16 July 2013 12:47 PM EDT
Written by Michael Larabel in X.Org
2 Comments

Video acceleration support for the GLAMOR library, the open-source way of accelerating 2D X.Org operations via the 3D engine, is still coming and is being worked on by a student this summer.

One of the 2013 X.Org GSoC projects is adding X-Video support to GLAMOR. GLAMOR is the 2D acceleration library required by the AMD Radeon HD 7000 series GPUs with the RadeonSI driver stack while it can optionally be used for older Radeon GPUs or Intel hardware too.

The plans for this X-Video GLAMOR support are laid out in this blog post by Chuan He, the student working on this code and being mentored by Nouveau's Arthur Huillet and AMD's Alex Deucher.

The plan for this X-Video support comes down to stubbing out X-Video for GLAMOR and then writing OpenGL and GLSL shaders for doing YUV conversions and other color adjustments for video playback. This would be a generic way of improving the video playback process a bit, but still not obviously as good as tapping AMD's UVD or NVIDIA's PureVideo engines for full video encode/decode acceleration over VDPAU.

At the end of June, Chuan He shared a status update for X-Video GLAMOR support (only now is it coming across the FreeDesktop.org Planet), but there isn't too much to share. In a post last week the student developer was hitting corruption within a GLAMOR dispatch function and presently debugging the issue.

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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