[Mesa-dev] [PATCH v3 06/29] glsl: add ARB_gpu_shader_fp64 to the glsl extensions. (v2)

[Dave Airlie]

On 9 February 2015 at 08:44, Aditya Avinash <adityaavinash1 at gmail.com> wrote:
> Ya. I just want to know that part "only some r600".
> I believe some of the nv0 cards doesn't support double. You have any ideas
> or suggestions to make it possible?

For AMD
http://en.wikipedia.org/wiki/List_of_AMD_graphics_processing_units

has what cards directly support double precision for r600/700/evergreen

The plan is to implement a soffloat library like the fglrx drivers do for the
GPUs that don't do doubles just to satisfy the GL4.0 requirement.

Whether we implement this in GLSL, NIR or in the backends is currently
an open question.

Not sure what the nvidia limitations are if any.

Dave.