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Marek Files 22 Gallium3D / R600g Improvements

Mesa

Published on 10 July 2012 11:42 AM EDT
Written by Michael Larabel in Mesa
10 Comments

Just days after making a number of improvements to Mesa/Gallium3D, Marek is back this week so far with 22 patches to improve Gallium3D and specifically to benefit the AMD Radeon "R600g" graphics driver.

Marek Olšák on Monday sent to the Mesa mailing list a set of 22 patches under Gallium and R600 improvements. This follows his recent OpenGL 4.0 transform feedback work and another important patch-set from last week. His mailing list message says:
Patches 1-12 are Mesa/Gallium improvements. Most importantly, this adds acceleration of stencil copying (including glBlitFramebuffer) using the shader stencil export functionality. I am afraid r600g and radeonsi are the only drivers which can make use of it at the moment. There is also acceleration for depth texture mipmap generation.

Patches 13-22 are R600 improvements. There is a new derived state for the CB registers which kept cumulating in the draw_vbo function, and some improvements for depth-stencil flushing and uploading. My changes to the CB_TARGET_MASK emission in the compute code (patch #13) might need some review from somebody working on compute.
These patches touch around 1,000 lines of code and fixes 23 depth-stencil Piglit regression tests on r600g.

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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