Graphics: Mesa, Wayland/Weston, Radeon
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"Soft" FP64/INT64 Implementations Merged To Mesa, Intel Driver Already Making Use
For those with older graphics processors, rejoice as with the upcoming Mesa 19.0 driver release it might now be possible to have OpenGL 4.0 thanks to software-based implementations of ARB_gpu_shader_int64 and ARB_gpu_shader_fp64 finally being merged to mainline. The FP64 one is most notable with that being a requirement for OpenGL 4.0 but some older GPUs lacking that capability for bumping past OpenGL 3.3.
Going back to the summer of 2016 was a Google Summer of Code project by Elie Tournier to implement "soft" FP64 support using GLSL to help out older GPUs that otherwise couldn't expose OpenGL 4.0 due to not supporting ARB_gpu_shader_fp64. Elie Tournier has since gone on to work for Collabora but getting this code merged has taken quite some time.
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Intel Developer Working On Adding HDR Display Support To Wayland / Weston
While the Linux desktop's display stack has largely reached parity with Windows and macOS in recent years (most recently, the DRM core properties hitting Linux 5.0 around Adaptive-Sync / VRR), but one of the areas that has remained elusive has been for full HDR display support. We've seen NVIDIA working on nursing the X.Org-based display stack for HDR while now Intel appears to be working on the necessary Wayland changes.
Back in 2016 is when NVIDIA began looking at the Linux shortcomings for HDR display support and ended up proposing the DeepColor X11 extension (still yet to be merged) and other efforts for an HDR Linux desktop compared to traditional SDR content. Now with Intel's Icelake processors coming out later in the year with "Gen 11" graphics and their Xe discrete graphics potentially coming next year, HDR display support is now on the minds of their open-source driver developers.
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The Expected Linux Driver State For The Radeon VII
With yesterday's surprise announcement of the Radeon VII "Radeon 7" as a new $699 7nm second-generation Vega consumer graphics card launching in early February, you may be wondering about the open-source Linux driver support state. While nothing official has come down the wire yet, here is what appears to be the state for this new Vega graphics card on Linux.
AMD hasn't communicated yet about the Linux driver support for Radeon VII, I don't have any review sample or the like at this time, but given the number of questions since yesterday about Linux support, here's what I know based off my close monitoring of the AMD open-source Linux driver development.
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