[Mesa-dev] [PATCH 8/8] radeonsi: Add DCC for multisampled textures.

[Marek Olšák]

On Thu, Sep 24, 2015 at 2:44 AM, Marek Olšák <maraeo at gmail.com> wrote:
> On Fri, Sep 4, 2015 at 9:47 PM, Bas Nieuwenhuizen
> <bas at basnieuwenhuizen.nl> wrote:
>> The DCC fast clear for multisampled textures is still disabled
>> as that does not work correctly yet.
>
> Maybe it will work after my comments from the previous patches are applied.

I take that back. The MSAA DCC fast clear is more complicated.

You can try fast clear if nr_samples <= SAMPLE_SPLIT, which you can
get from si_tile_mode_array and that should work fine. I think
SAMPLE_SPLIT is set to 2 on most chips, which should allow fast clear
with 2x MSAA. It's more complicated with higher AA modes.

Marek