Nouveau NV50 Gallium3D Gains A Bit More Of GL 4.0
Written by Michael Larabel in Nouveau on 26 February 2014 at 12:08 AM EST. 8 Comments
The open-source Radeon driver isn't the only Gallium3D driver gaining more OpenGL 4 support this week but the Nouveau "NV50" Gallium3D driver has also seen some needed love.

Ilia Mirkin, an increasingly prolific contributor to Nouveau, committed support on Tuesday for allowing the NV50 Gallium3D driver to support the GL_ARB_texture_cube_map_array and GL_ARB_texture_gather. These two extensions are mandated by the OpenGL 4.0 core specification. The ARB_texture_cube_map_array extension was already supported by the "NVC0" driver for Fermi/Kepler GPUs while the newer Gallium3D driver has yet to see proper ARB_texture_gather support. The Nouveau NV50 Gallium3D driver is what supports from NVIDIA's GeForce 8 series through the GeForce 300 series.

These two OpenGL 4.0 extensions for Nouveau NV50 Gallium3D landed via a set of commits that will be found in the Mesa 10.2 release in a few months time.

Among other work, the Nouveau code still needs to work on its support for GLSL 4.0, GL_ARB_texture_query_lod, GL_ARB_draw_indirect, GL_ARB_gpu_shader5, GL_ARB_gpu_shader_fp64, GL_ARB_sample_shading, GL_ARB_shader_subroutine, GL_ARB_tessellation_shader, and other work before the NV50/NVC0 drivers can officially advertise OpenGL 4.0 compliance. It will come as a big surprise if this open-source NVIDIA Linux graphics driver can officially support OpenGL 4.0 in 2014 with only OpenGL 3.3 support officially being reached with the Mesa 10.1 version that is being released as stable on Friday.
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Michael Larabel is the principal author of Phoronix.com and founded the web-site in 2004 with a focus on enriching the Linux hardware experience and being the largest web-site devoted to Linux hardware reviews, particularly for products relevant to Linux gamers and enthusiasts but also commonly reviewing servers/workstations and embedded Linux devices. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics hardware drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated testing software. He can be followed via Twitter or contacted via MichaelLarabel.com.

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