[Mesa-dev] Check the compilation problems in mesa-user

[Brian Paul]

On 07/25/2012 09:01 AM, Matt Turner wrote:
> On Wed, Jul 25, 2012 at 6:57 AM, Brian Paul<brianp at vmware.com>  wrote:
>>> Several days passed and no software renderer.
>>> I rather would like to test the llvmpipe
>>> than fix the compiler...
>>>
>>> What is the status with OSMesa and llvmpipe?
>>
>>
>> OSMesa only works with the legacy swrast driver, not llvmpipe.  One thing on
>> my to-do list is to write a gallium state tracker to implement OSMesa for
>> gallium drivers.  But I don't know when I'll get to that.
>
> OSMesa does software offscreen rendering? Why wouldn't developers just
> use FBOs these days? Beyond not depending on OSMesa, they'd have
> hardware acceleration.

I think it's mostly legacay apps that use OSMesa.  But some OSMesa 
apps do unusual things like directly touching the color/depth buffer 
values to avoid glRead/DrawPixels (see the
OSMesaGetDepth/ColorBuffer() functions).

-Brian