Graphics: AMD, Mesa, VESA and More
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AMD Moving Forward In Their RadeonSI Support For ARB_gl_spirv
AMD open-source developer Nicolai Hähnle has spent the past few months working on the ARB_gl_spirv extension as mandated by OpenGL 4.6. Some of the prep work for supporting that extension has landed in Mesa 17.4-dev Git.
ARB_gl_spirv is about bringing SPIR-V support to OpenGL drivers, the IR shared by Vulkan and OpenCL 2.1+. ARB_gl_spirv allows for loading SPIR-V modules into OpenGL programs and allows for GLSL to be a source language in creating SPIR-V modules. This is basically for creating better interoperability between OpenGL and Vulkan/SPIR-V.
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Mesa Glthread Gets Adds Another Game, AMDGPU Winsys Gets Performance Workaround
This week has started off to being another busy time in Mesa Git just ahead of the holidays.
First up, Mount & Blade: Warband is the latest game to be white-listed by the Mesa glthread functionality for enabling OpenGL threading on this Steam Linux game. Mount & Blade: Warband was actually whitelisted back in July but then disabled a few days later as it turned out not to be working.
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VESA Rolls Out DisplayHDR As Its Latest Standard
VESA has rolled out DisplayHDR 1.0 as its newest standard. As implied by the name, the standard is in regards to specifying HDR (High Dynamic Range) quality for displays.
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VC5 OpenGL & Vulkan Driver Advancing
Broadcom developer Eric Anholt has offered an update on the state of the VC5 Gallium3D driver for OpenGL support as well as the work being done on the "BCMV" Vulkan driver. Additionally, the VC4 Gallium3D driver for existing Raspberry Pi devices continues to get better.
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Initial Tessellation Shader Support For RadeonSI NIR
The RadeonSI Gallium3D driver's NIR back-end is moving one step closer to feature parity with the existing OpenGL capabilities of this AMD GCN graphics driver.
Timothy Arceri working for Valve has been focusing on the NIR back-end recently for RadeonSI. This NIR intermediate representation handling is being driven in order to add SPIR-V ingestion support to RadeonSI with code sharing for RADV's existing NIR-based infrastructure.
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