Rob Clark has provided a status update on Freedreno
, his reverse-engineered ARM open-source graphics driver for the Qualcomm Snapdragon / Adreno hardware.
The latest update on Freedreno came on Tuesday via his blog
. Aside from getting the stencil buffer working and fixing batching problems in the 2D driver, Rob has also begun eyeing a Gallium3D-based driver and he's already implemented DRI2 support within the xf86-video-freedreno DDX driver.
Rob Clark has already written a libdrm_freedreno DRM module for interfacing with the kernel driver. This libdrm can be used by the xf86-video-freedreno DDX as well as the eventual Gallium3D driver. "Eventually we will need a proper DRM kernel driver, but libdrm_freedreno abstracts this well enough that I can concentrate on the 2d/3d userspace parts. The eventually plan is that when there is a proper DRM kernel driver (supporting a pushbuffer type interface, and synchronization between 2d and 3d pipes), libdrm_freedreno will be the point where we support talking to either the new driver or the existing QCOM kernel driver."
It will likely be a while before there's a fully-working Gallium3D driver for Qualcomm's ARM SoC, but at least Rob Clark is making much progress in the reverse-engineering and driver writing process, which he is doing purely in his spare time.