Graphics: X.Org Server and Mesa
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X.Org Server To See New CI-Driven Automated Release Cycles, Big Version Numbers
There hasn't been a major release of the X.Org Server now in 17 months... Not because there haven't been any changes (in fact, a lot of GLAMOR and XWayland work among other fixing) but because no one has stepped up as release manager to get the next version out the door. But to workaround that, developers are looking at moving the X.Org Server to purely time-based releases and letting their continuous integration testing be the deciding factor on if a release is ready to ship.
Adam Jackson of Red Hat proposed at last week's XDC2019 the idea of having these new, effectively automated X.Org Server releases. The xorg-server releases would get back on to their six-month release cadence and be largely autonomous with sticking to the release timeframe and just ensuring the testing gets done by way of their CI system to ensure the X.Org Server is in good shape for releasing.
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Tons Of The Intel Tiger Lake "Gen 12" Graphics Compiler Code Just Landed In Mesa 19.3
A lot of the Tiger Lake "Gen 12" graphics compiler infrastructure changes to Mesa for Intel's open-source OpenGL and Vulkan Linux drivers were just merged into the Mesa 19.3 code-base.
These compiler changes have been public and under review for several weeks now but have just been merged to Mesa 19.3-devel this Friday afternoon. The changes for Tigerlake/Gen12 represent the biggest changes to Intel's graphics ISA going back to the original i965. As explained last month,
nearly every instruction field, opcode, and register type is updated and the hardware register scoreboard logic has been punted into software with now leaving it up to the compiler now for ensuring data coherency between register reads/writes and a new sync hardware instruction. -
Raspberry Pi 4's V3D Mesa Driver Nearing OpenGL ES 3.1
Back during the summer Eric Anholt who had been the lead developer of Broadcom's VC4/V3D graphics driver stack most notably used by Raspberry Pi boards left the company to join Google. In his place, the Raspberry Pi Foundation is working with consulting firm Igalia to continue work on the DRM/KMS kernel driver and Gallium3D drivers for this open-source graphics driver support.
Igalia has been working recently on V3D shader compiler improvements with implementing more pieces of NIR as well as addressing test case failures / bugs. One of the areas they have been working on a lot is OpenGL transform feedback.
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