[gentoo-user] Who can tell me relationship among dri,glx,mesa,xorg?

[gentoo-user] Who can tell me relationship among dri,glx,mesa,xorg?

[Lavender]

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Now I'm totally confused, I can't find helpful information from Internet.
I know mesa is a open source implementation of OpenGL, obviously
mesa will afford OpenGL API. DRI is short for Direct Rendering Infrastructure,
I have chosen options like:
Device Drivers --->
  Graphics support --->
  <*>  Direct Rendering Manager --->
  <*>    ATI Radeon
  [*]      Enable modesetting on radeon by default

Does this mean that DRI libraries are built into kernel? If not, who contains DRI?
Also who affords GLX libraries? Mesa or Xorg?


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Re: [gentoo-user] Who can tell me relationship among dri,glx,mesa,xorg?

[Andrés Becerra Sandoval]

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2011/12/14 Lavender <lavender_matrix@163.com>

> Now I'm totally confused, I can't find helpful information from Internet.
> I know mesa is a open source implementation of OpenGL, obviously
> mesa will afford OpenGL API. DRI is short for Direct Rendering
> Infrastructure,
> I have chosen options like:
>
> Device Drivers --->
>   Graphics support --->
>   <*>  Direct Rendering Manager --->
>   <*>    ATI Radeon
>   [*]      Enable modesetting on radeon by default
>
> Does this mean that DRI libraries are built into kernel? If not, who contains DRI?
>
> Also who affords GLX libraries? Mesa or Xorg?
>
>
>
About Mesa:
http://www.mesa3d.org/intro.html

About DRI:
http://dri.freedesktop.org/wiki/



-- 
  Andrés Becerra Sandoval

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Re: [gentoo-user] Who can tell me relationship among dri,glx,mesa,xorg?

[Michael Schreckenbauer]

Am Mittwoch, 14. Dezember 2011, 14:22:47 schrieb Lavender:
> Now I'm totally confused, I can't find helpful information from Internet.
> I know mesa is a open source implementation of OpenGL, obviously
> mesa will afford OpenGL API. DRI is short for Direct Rendering
> Infrastructure, I have chosen options like:
> Device Drivers --->
>   Graphics support --->
>   <*>  Direct Rendering Manager --->

this is DRM. This one manages allocation of memory for video devices.

>   <*>    ATI Radeon
>   [*]      Enable modesetting on radeon by default
> 
> Does this mean that DRI libraries are built into kernel? 

No.

> If not, who
> contains DRI? Also who affords GLX libraries? Mesa or Xorg?

DRI is part of mesa. Mesa also provides the GLX libraries.

Best,
Michael

Re:Re: [gentoo-user] Who can tell me relationship among dri,glx,mesa,xorg?

[Lavender]

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At 2011-12-15 03:24:20,"Michael Schreckenbauer" <grimlog@gmx.de> wrote:
>Am Mittwoch, 14. Dezember 2011, 14:22:47 schrieb Lavender:
>> Now I'm totally confused, I can't find helpful information from Internet.
>> I know mesa is a open source implementation of OpenGL, obviously
>> mesa will afford OpenGL API. DRI is short for Direct Rendering
>> Infrastructure, I have chosen options like:
>> Device Drivers --->
>>   Graphics support --->
>>   <*>  Direct Rendering Manager --->
>
>this is DRM. This one manages allocation of memory for video devices.
>
>>   <*>    ATI Radeon
>>   [*]      Enable modesetting on radeon by default
>> 
>> Does this mean that DRI libraries are built into kernel? 
>
>No.
>
>> If not, who
>> contains DRI? Also who affords GLX libraries? Mesa or Xorg?
>
>DRI is part of mesa. Mesa also provides the GLX libraries.
>
>Best,
>Michael
>
Thanks and  I wish you could help answer this question.Now I know Mesa provides DRI and GLX, when I installed xorg-server,there're also libraries named like libdri.so and libglx.so in /etc/X11/....(somewhere).What I don't understand is, why Xorg-server still provides its own DRI and GLX while Mesahas done this already?

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Re: [gentoo-user] Who can tell me relationship among dri,glx,mesa,xorg?

[Michael Schreckenbauer]

Am Donnerstag, 15. Dezember 2011, 18:29:14 schrieb Lavender:
> At 2011-12-15 03:24:20,"Michael Schreckenbauer" <grimlog@gmx.de> wrote:
> >Am Mittwoch, 14. Dezember 2011, 14:22:47 schrieb Lavender:
> >> Now I'm totally confused, I can't find helpful information from
> >> Internet. I know mesa is a open source implementation of OpenGL,
> >> obviously mesa will afford OpenGL API. DRI is short for Direct
> >> Rendering
> >> Infrastructure, I have chosen options like:
> >> Device Drivers --->
> >> 
> >>   Graphics support --->
> >>   <*>  Direct Rendering Manager --->
> >
> >this is DRM. This one manages allocation of memory for video devices.
> >
> >>   <*>    ATI Radeon
> >>   [*]      Enable modesetting on radeon by default
> >> 
> >> Does this mean that DRI libraries are built into kernel?
> >
> >No.
> >
> >> If not, who
> >> contains DRI? Also who affords GLX libraries? Mesa or Xorg?
> >
> >DRI is part of mesa. Mesa also provides the GLX libraries.
> >
> >Best,
> >Michael
> 
> Thanks and  I wish you could help answer this question.Now I know Mesa
> provides DRI and GLX, when I installed xorg-server,there're also libraries
> named like libdri.so and libglx.so in /etc/X11/....(somewhere).

Yeah, I was wrong :) libglx and libdri are part of xorg-server.

Best,
Michael

Re: [gentoo-user] Who can tell me relationship among dri,glx,mesa,xorg?

[Adam Carter]

> Yeah, I was wrong :) libglx and libdri are part of xorg-server.

libglx can also be provided by driver packages. You can select the
xorg one or others via eselect;

proxy adam # eselect opengl list
Available OpenGL implementations:
  [1]   ati *
  [2]   xorg-x11

Also, I imagine those kernel options supply an interface for the DRM/DRI driver.

Re:Re: [gentoo-user] Who can tell me relationship among dri,glx,mesa,xorg?

[Lavender]

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>libglx can also be provided by driver packages. You can select the
>xorg one or others via eselect;
>
>proxy adam # eselect opengl list
>Available OpenGL implementations:
>  [1]   ati *
>  [2]   xorg-x11
>
>Also, I imagine those kernel options supply an interface for the DRM/DRI driver.
>
Thank you very much ! I think I worked it out :)

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Re:Re: [gentoo-user] Who can tell me relationship among dri,glx,mesa,xorg?

[Lavender]

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About Mesa:
http://www.mesa3d.org/intro.html



About DRI:

http://dri.freedesktop.org/wiki/





--
  Andrés Becerra Sandoval


Thanks, the web pages you provided I have already read before, these don't seem to provide helpful issues for my questions.

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