Once the Mesa 21.1 work settles down, I'll be through with more benchmarks - in case you missed it, prior Zink mainline benchmarks from January.The Khronos Group today announced the immediate release of the OpenGL 4.3 specification, bringing the very latest graphics functionality to the most advanced and widely adopted cross-platform 2D and 3D graphics API (application programming interface). We'll also see if Zink ends up going through the formal OpenGL conformance/CTS process for those latest revisions with The Khronos Group.Īside from finishing up the OpenGL extension work, we are also eager to see what performance optimizations may get upstreamed still for the Mesa 21.1 cycle. So it's possible we could see that happen for the Q2'2021 release while there are five extensions left for GL 4.5 and even more for GL 4.6, so those latest GL versions may take longer. For OpenGL 4.4 there is just ARB_buffer_storag, ARB_enhanced_layouts, and ARB_query_buffer_object still left to be finished up for Zink. Now to see if OpenGL 4.4 could be reached for Mesa 21.1. OpenGL 4.3 brings ARB_compute_shader as most notable but also other extensions like KHR_debug, ARB_arrays_of_arrays, ARB_framebuffer_no_attachments ARB_multi_draw_indirect, ARB_texture_view, and others. Having OpenGL 4.3 support should allow a few more games to now work on Zink. The latest patches were from Mike Blumenkrantz. With "the ol' bumperoo", Zink is now hitting OpenGL 4.3 with Mesa Git that over some two dozen patches finished up the OpenGL 4.3 support.
But now for next quarter's Mesa 21.1 will be at least OpenGL 4.3 after that was crossed off the list on Tuesday. With the soon-to-be-released Mesa 21.0 there is OpenGL 4.1 for Zink as a major milestone and the first stable release with GL4 class support.
Now with Mesa 21.1, we are up to OpenGL 4.3. In the months since and especially after Mike Blumenkrantz was hired by Valve, the upstreaming effort kicked into higher gear. Going back to last summer there have been patches for getting OpenGL 4.6 with the Zink GL on Vulkan implementation but were considered experimental and not for immediate upstreaming.
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