[Mesa-dev] [PATCH] Revert "radeonsi: only set BC_OPTIMIZE_DISABLE when necessary"

[Marek Olšák]

I don't know. I couldn't find any useful info about it either.

Marek

On Wed, Jan 14, 2015 at 3:33 AM, Michel Dänzer <michel at daenzer.net> wrote:
> On 13.01.2015 19:11, Marek Olšák wrote:
>> This is weird. We only enable this optimization if the shader code
>> doesn't use CENTROID at all. This is the main flag:
>> sctx->ps_shader->info.uses_centroid.
>>
>> You can try to simplify the condition to:
>>
>> bc_optimize_disable = sctx->ps_shader->info.uses_centroid;
>>
>> That should avoid using the optimization even for the non-MSAA case if
>> CENTROID is used.
>
> That would probably fix the problem, but I wonder if the optimization
> has any effect then? What little description I've found of it sounds
> like it could only have an effect for shaders which use both centroid
> and center interpolation.
>
>
> --
> Earthling Michel Dänzer               |               http://www.amd.com
> Libre software enthusiast             |             Mesa and X developer