OpenGL Atomic Counters Land For R600 Gallium3D
Written by Michael Larabel in Radeon on 10 November 2017 at 05:37 AM EST. 3 Comments
RADEON --
Support for atomic counters have landed within the R600 Gallium3D driver that continues to be used by pre-GCN graphics cards from the Radeon HD 2000 series through the Radeon HD 6000 series.

Landing by David Airlie for R600g is support for ARB_shader_atomic_counters as needed by OpenGL4.2 and ARB_shader_atomic_counter_ops as introduced for OpenGL 4.6. The ARB_shader_atomic_counters extension is also needed for OpenGL ES 3.1 support.

Those unfamiliar with atomic counters in the context of OpenGL can learn more via the OpenGL Wiki or spec registry.

That's it for now though on the R600g front. Most R600g class hardware remains bound to OpenGL 3.3 for now though until emulated/software-driven FP64 support lands.

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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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