Intel's Windows Driver Now Supports OpenGL 4.4, Linux Driver Still With OpenGL 3.3
Written by Michael Larabel in Intel on 20 April 2015 at 12:13 PM EDT. 23 Comments
The Intel Windows driver is up to supporting the OpenGL 4.4 specification while the company's open-source Linux graphics driver still doesn't yet fully support OpenGL 4.0.

A Phoronix reader pointed out today that with the new Intel Windows driver there's now OpenGL 4.4.0 compliance with GLSL 4.40. This GL 4.4 support is working for at least Broadwell graphics and presumably Haswell too, but as of writing there's been no official release announcement of this new Windows driver on Intel's web-site.

The state of Mesa and Intel's driver support for GL 4.x can be found via the Mesa documentation. Still blocking the OpenGL 4.0 compliance is incomplete GL_ARB_shader_subroutine and GL_ARB_tessellation_shader support. For OpenGL 4.1 there's still work to be done on GL_ARB_shader_precision and GL_ARB_vertex_attrib_64bit and for OpenGL 4.2 there's work to be done on GL_ARB_shader_image_load_storage. Mesa's support of OpenGL 4.3 and 4.4 remains much less complete. OpenGL 4.0~4.2 compliance should still happen this calendar year but it's doubtful that OpenGL 4.3~4.4 will get wrapped up in 2015.
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