Ian Romanick writes:
>> To fix that this patch makes it use interpolateAtOffset in the blit
>> shader whenever 16x MSAA is used and the GL_ARB_gpu_shader5 extension
>> is available. This forces it to interpolate the texture coordinates at
>> the pixel center to avoid these problematic positions.
On 09/29/2015 07:57 AM, Neil Roberts wrote:
> Previously there was a problem in i965 where if 16x MSAA is used then
> some of the sample positions are exactly on the 0 x or y axis. When
> the MSAA copy blit shader interpolates the texture coordinates at
> these sample positions it was possible that
Bump. Does anybody have some time to review this patch? I think it's the
only one holding up landing 16x MSAA support.
The following three only have an ack-by but I'm hoping it is reasonable
to just push the branch with that.
i965/meta: Support 16x MSAA in the meta stencil blit
http://patchwork.f
Previously there was a problem in i965 where if 16x MSAA is used then
some of the sample positions are exactly on the 0 x or y axis. When
the MSAA copy blit shader interpolates the texture coordinates at
these sample positions it was possible that it would jump to a
neighboring texel due to roundin
