Core Mesa Now Implements OpenGL 4.0, Nearly At OpenGL 4.1~4.2
Written by Michael Larabel in Mesa on 23 July 2015 at 07:34 AM EDT. 24 Comments
MESA --
Wow, it's like a dream... Waking up to find that Mesa Git now supports all of the necessary GL extensions to claim OpenGL 4.0 compliance by core Mesa. It took more than five years, but it's finally materializing and OpenGL 4.1~4.2 isn't too far behind.

Last night Mesa received OpenGL 4.0's tessellation support for RadeonSI. Since that last article on Phoronix, Ilia Mirkin has been landing some tessellation-related work for the Nouveau (NVC0) Gallium3D driver.

Meanwhile, David Airlie added the shader sub-routine support! ARB_shader_subroutine was the last extension needed by core Mesa for OpenGL 4.0.

While core Mesa claims OpenGL 4.0 compliance now, the state of the individual drivers do vary. Nouveau's NVC0 Fermi/Kepler driver is in great shape followed by the Intel i965 DRI driver with Haswell or better, and then the RadeonSI / R600 drivers. For Nouveau NV50, LLVMpipe, Softpipe, and the other niche drivers there is still much more work left.

We're now just one extension away from having OpenGL 4.1 compliance too, which is for the GL_ARB_shader_precision extension. There are already patches public for that and it's possible the work could land soon for the next Mesa release. Blocking OpenGL 4.2 compliance is ARB_shader_image_load_store, which there are patches for too.

It looks like Mesa 10.7 will end up being renamed to Mesa 11.0 for its release in September. Some discussion about this monumental milestone is already happening in this forum thread.

UPDATE: More details here.
About The Author
Author picture

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.

Related Mesa News
Popular News This Week