[Dev] Building platform image with Mesa or Virtual driver in Tizen 3.0

Carsten Haitzler c.haitzler at samsung.com
Fri Jul 25 04:07:27 GMT 2014


On 07/25/2014 12:43 PM, Damian Hobson-Garcia wrote:
> Hi Sangwon,
>
> On 2014-07-25 12:10 PM, 하상원 wrote:
>> Hi Damian,
>>
>> I don't think all drivers being supported thru Mesa is a good idea.
>>
>> There are probably more GPU vendors who don't provide Mesa compatible drivers.
> I agree 100%
>
>> Anyway, I think there're two sides to consider: build-time and runtime requirements.
>>
>> For build-time, opengl-es-virtual-drv seems to be enough and being very lightweight,
>>
>> it wouldn't need any upkeep in terms of bugs and fixes.
> I agree here too.
>
>> Mesa could also be used during build time instead of the opegl-es-virtual-drv.
> Yes and no, I think.  There is the minor problem that the Mesa drivers
> provide a versioned libGLESv2.so.2, which all of the built packages will
> link to.  This means that if I want to install a driver (such as Mali or
> SGX) after the fact, I have to provide libGLESv2.so.2 to overwrite the
> Mesa driver. If Mesa changes its version number for some reason, now the
> Mali and SGX drivers must update their names as well.
> opegl-es-virtual-drv is nice because it is not versioned, so as long as
> there is a libGLESv2.so (or a link of that name) in the non floss
> drivers, everything works.

or just provide a symlink. far simpler a solution. drivers just ghave to
agree all to provide at least the same symlink to the real driver version

>> As for the glesv2 issue, we'll look into it and see if we can provide a nice 
>> solution.
> Thank you.
>
> Damian
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