[Mesa-dev] [PATCH 00/10] i965: add ARB_shader_texture_image_samples support

[Ilia Mirkin]

On Fri, Aug 28, 2015 at 6:58 AM, Francisco Jerez <currojerez at riseup.net> wrote:
> Ilia Mirkin <imirkin at alum.mit.edu> writes:
>
>> This should include everything. I sent a test for textureSamples to
>> piglit a while ago, not sure how to test imageSamples -- apparently ms
>> images aren't entirely supported on i965? But I'm not sure via what
>> feat that happens.
>>
> i965 doesn't support MS images because on Gen7-8 it would involve either
> converting all MS textures to UMS on the fly or implementing the
> compressed MS layout in software, which would be even more madness.  On
> Gen9 and up though it's supported natively by the hardware and it
> shouldn't be too difficult to implement, I just haven't had the chance
> to do the work yet.

Yeah, I've heard that before, but... what exactly prevents one from
using a 2DMS image? I didn't see anything that checked if the images
were MS.

  -ilia