Collabora's Work On KMS_SWRAST For Android Graphics Fallback
Written by Michael Larabel in Mesa on 2 August 2018 at 03:07 AM EDT. Add A Comment
MESA --
Robert Foss at Collabora has recently been working on supporting the "kms_swrast" code under Android.

KMS_SWRAST is a Gallium component that supports utilizing DRM nodes for the memory allocation but for the actual OpenGL rendering still falls back to LLVMpipe (or Softpipe).

KMS_SWRAST has been around for a while but now is being worked on as a software fallback on the Android platform. Over the course of July, Robert sent out three rounds of patches for this Android kms_swrast support.

KMS_SWRAST doesn't do any actual GPU-based rendering but just deals with the DRM driver for memory allocations and then presenting the LLVMpipe/Softpipe-rendered image to the display.

If you are curious about it, Robert Foss has posted a very basic overview of the effort on the Collabora blog.
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Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter or contacted via MichaelLarabel.com.

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