A Bunch Of New Code Merged Into Mesa 19.1: Intel ANV, Iris, Softpipe, Virgl
Written by Michael Larabel in Mesa on 9 April 2019 at 06:16 AM EDT. 8 Comments
MESA --
Mesa developers have been off to a busy start this week with a lot of new code merged affecting multiple drivers.

Among the new code merged to Mesa 19.1 over the past day or so has included:

- Support for ARB_multi_draw_indirect within the Virgl code for guest VM acceleration. ARB_multi_draw_indirect is one of the required extensions by OpenGL 4.3.

- Also merged to Virgl was ARB_indirect_parameters, an extension mandated by OpenGL 4.6.

- The Softpipe reference driver meanwhile now supports geometry shaders with multiple streams and enables ARB_gpu_shader5 vertex streams for this driver.

- Softpipe also picked up support for indexed queries.

- Intel's new Iris Gallium3D driver meanwhile added support for NV_compute_shader_derivatives. That extension allows for using derivatives within compute shaders. The i965 driver also received similar support.

- Meanwhile the Intel ANV Vulkan driver has wired up VK_NV_compute_shader_derivatives, which is the Vulkan equivalent of the OpenGL compute shader derivatives extension.

- Also new to the Intel Vulkan driver is VK_KHR_swapchain support.

These changes and more will be part of the Mesa 19.1 quarterly feature release that should debut around the end of May.

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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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