[Mesa-dev] [PATCH 4/8] scons: Don't build osmesa.

[Jose Fonseca]

On 25/03/15 14:53, Emil Velikov wrote:
> On 24 March 2015 at 21:16, Jose Fonseca <jfonseca at vmware.com> wrote:
>> There doesn't seem much interest on osmesa on Windows, particularly classic osmesa.
>>
>> If there is indeed interest in osmesa on Windows, we should instead
>> integrate src/gallium/targets/osmesa into SCons.
> Afaict the Octave people still use it. There was a guy in #dri-devel
> who was having issues with the Windows build not too long ago [1]
>
> Iirc the VTK folk are were using osmesa, although I'm not sure if (how
> much) Windows support is a thing for them. Hence the presence of the
> scons build.
>
> All of that is more of jfyi rather than feeling sentimental about nuking it :)
> -Emil
>
> [1] https://urldefense.proofpoint.com/v2/url?u=http-3A__people.freedesktop.org_-7Ecbrill_dri-2Dlog_-3Fchannel-3Ddri-2Ddevel-26highlight-5Fnames-3Dandy1978-26date-3D2015-2D02-2D26&d=AwIBaQ&c=Sqcl0Ez6M0X8aeM67LKIiDJAXVeAw-YihVMNtXt-uEs&r=zfmBZnnVGHeYde45pMKNnVyzeaZbdIqVLprmZCM2zzE&m=0--RMUucqcy-hAGpX9G5a-U9MF5M607lG9i3Bm4eD2w&s=G-FQcwnoms56_DZd1eCFZAu3K6T9oDhuuqiIVGC7n6o&e=

Thanks for the info Emil.

The osmesa I removed from scons was the one with classic sw rasterizer.

The osmesa w/ softpipe/llvmpipe is in src/gallium/targets/osmesa , but 
was never integrated into scons build (just autotools.)

I'm OK adding support to build osmesa on Windows with llvmpipe/softpipe, 
but I don't think there's value in supporting the classic rasterizer -- 
less code that we need to worry about MSVC portability.  I might give it 
a go when I find some time.



For the record, there was a point in time where I wanted SCons to build 
most of Mesa in the hope of replacing autotools, which is why scons 
build more than just Windows.  But it's a loosing battle.  Nowadays I'm 
more interested in reducing the SCons scope as much as possible, so 
there's less stuff for me and everybody else to maintain.

(And if there's a build system that could really work across multiple 
platforms and make everybody happy, my bet would not be scons, but 
rather cmake.  But I doubt there will ever be agreement or time to take 
such enterprise anyway.)


Jose