[Mesa-dev] [RFC PATCH 1/1] st/dri: add a new driconf option override_glsl_version for ARK games

[Samuel Pitoiset]

On 02/06/2017 04:45 PM, Eero Tamminen wrote:
> Hi,
>
> On 05.02.2017 15:19, Samuel Pitoiset wrote:
>> On 02/03/2017 07:48 PM, Bas Nieuwenhuizen wrote:
>>> As far as I can see[1], when the game detects GL 4.3+, the engine tries
>>> to load a different set of shaders from disk, but the game developers
>>> have not enabled the right flag during building, so the shaders for
>>> GL4.3+ are not actually distributed with the game, which results in a
>>> failure to load the game. From my POV this is entirely the fault of the
>>> game.
>>
>> I can confirm that these ARK games fail to start with a 4.3+ context.
>> But from my point of view, I'm not really *sure* it's a game fault
>> because as you said in the related ticket, the game starts correctly
>> with AMDGPU-pro because it returns the right context. Maybe we should
>> just do the same?
>>
>>>
>>> That said, the bug contains a report from someone else that it works on
>>> intel with GL4.3+.
>
> That was me.  The game is still early access and has been updated many
> times since.
>
>
>>> I never got to test that or look deeper into this, so
>>> it could very well be that I overlooked something during this analysis.
>>
>> It would be interesting to get a confirmation, but I don't have any
>> intel hw here.
>
> Results from quick try on Ubuntu 16.04 with today's version of the game
> (ARK: Survival Evolved)...
>
> With (Ubuntu 16.04 default) Mesa 11.2, game starts to the game main
> menu, but when one starts from that a single player campaign, it will
> crash before the real game begins, after few minutes of loading (when
> game RAM resident set size has grown to ~10 GB):
> ------------------------
> Thread 1 "ShooterGame" received signal SIGSEGV, Segmentation fault.
> 0x0000000001369f9b in _start ()
> (gdb) bt
> #0  0x0000000001369f9b in _start ()
> ------------------------
>
> With latest Mesa (with or without the patch), game will just show a
> small dialog with few garbage characters and exit.  I have no idea what
> it wants to complain about.

That patch is actually wrong for intel (it doesn't override anything).

Maybe you can try this one?

https://cgit.freedesktop.org/~hakzsam/mesa/log/?h=override_glsl_version_v2

Thanks.

>
>
>     - Eero
>
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