Re: [Dri-devel] Microsoft IP claims over OpenGL

2002-07-15 Thread Brian Paul

José Fonseca wrote:
 Microsoft has been progressively claiming IP ownership of parts of the
 OpenGL API. (See http://news.zdnet.co.uk/story/0,,t269-s2118968,00.html)
 
 Although the parts they claim are things like vertex programming -
 features that aren't present in older cards such as Mach64 -, it seems
 obvious that these are features very important in the current and next
 generation of graphics cards.

Vertex programming is in the latest Mesa code (I implemented
GL_NV_vertex program over the winter/spring).  It'll be available
to all DRI drivers when the DRI gets Mesa 4.1.

NVIDIA gave me permission to implement the extension in software only.
But since that time, NVIDIA has announced basically unrestricted
permission to implement GL_NV_vertex_program.  I'll have to talk to
them again someday regarding future DRI hardware implementations.


 I would like to know your opinion about the influence this may have for
 the DRI and Mesa3D projects in particular, and for the OpenGL API in 
 general.

I consider myself a programmer and not a spokesperson for open-source,
intellectual property, patent issues, or anything else.  It's something
I'd rather just avoid.  But I guess it's something that I have to deal
with to some extent.

I don't have any deep insight into what Microsoft's actions will mean
for OpenGL or Mesa.  Other people are much better at analyzing the
situation and deducing the potential impact.  My time is best spent
writing code.

But like everyone else, I'm worried about Microsoft's recent actions.
I love working with OpenGL and don't want to see it strangled by
anyone or anything.  OpenGL still has a HUGE user base spanning
everyone from ISVs, to researchers, to educators, to hobbyists.
If Microsoft really takes action to kill OpenGL I'd hope that the
uproar and ill-will generated by such a move would convince them
to back off.

-Brian



---
This sf.net email is sponsored by:ThinkGeek
Welcome to geek heaven.
http://thinkgeek.com/sf
___
Dri-devel mailing list
[EMAIL PROTECTED]
https://lists.sourceforge.net/lists/listinfo/dri-devel



Re: [Dri-devel] Microsoft IP claims over OpenGL

2002-07-15 Thread Brian Paul

[resending with corrected email address typo]

José Fonseca wrote:
 Microsoft has been progressively claiming IP ownership of parts of the
 OpenGL API. (See http://news.zdnet.co.uk/story/0,,t269-s2118968,00.html)
 
 Although the parts they claim are things like vertex programming -
 features that aren't present in older cards such as Mach64 -, it seems
 obvious that these are features very important in the current and next
 generation of graphics cards.

Vertex programming is in the latest Mesa code (I implemented
GL_NV_vertex program over the winter/spring).  It'll be available
to all DRI drivers when the DRI gets Mesa 4.1.

NVIDIA gave me permission to implement the extension in software only.
But since that time, NVIDIA has announced basically unrestricted
permission to implement GL_NV_vertex_program.  I'll have to talk to
them again someday regarding future DRI hardware implementations.


 I would like to know your opinion about the influence this may have for
 the DRI and Mesa3D projects in particular, and for the OpenGL API in general.

I consider myself a programmer and not a spokesperson for open-source,
intellectual property, patent issues, or anything else.  It's something
I'd rather just avoid.  But I guess it's something that I have to deal
with to some extent.

I don't have any deep insight into what Microsoft's actions will mean
for OpenGL or Mesa.  Other people are much better at analyzing the
situation and deducing the potential impact.  My time is best spent
writing code.

But like everyone else, I'm worried about Microsoft's recent actions.
I love working with OpenGL and don't want to see it strangled by
anyone or anything.  OpenGL still has a HUGE user base spanning
everyone from ISVs, to researchers, to educators, to hobbyists.
If Microsoft really takes action to kill OpenGL I'd hope that the
uproar and ill-will generated by such a move would convince them
to back off.

-Brian



---
This sf.net email is sponsored by:ThinkGeek
Welcome to geek heaven.
http://thinkgeek.com/sf
___
Dri-devel mailing list
[EMAIL PROTECTED]
https://lists.sourceforge.net/lists/listinfo/dri-devel



Re: [Mesa3d-dev] Re: [Dri-devel] Microsoft IP claims over OpenGL

2002-07-15 Thread Allen Akin

On Mon, Jul 15, 2002 at 02:10:06PM -0500, Stephen J Baker wrote:
| The deal though is that (presuming MS really do own these rights)
| they are talking in terms of LICENSING this IP to allow OpenGL
| to continue to exist.  Who would pay them to license it for
| Linux?

There may be ways to finesse this.  People are talking about the
possibilities, but I haven't seen a conclusion yet.

Allen


---
This sf.net email is sponsored by:ThinkGeek
Welcome to geek heaven.
http://thinkgeek.com/sf
___
Dri-devel mailing list
[EMAIL PROTECTED]
https://lists.sourceforge.net/lists/listinfo/dri-devel



[Dri-devel] Microsoft IP claims over OpenGL

2002-07-12 Thread José Fonseca

Microsoft has been progressively claiming IP ownership of parts of the
OpenGL API. (See http://news.zdnet.co.uk/story/0,,t269-s2118968,00.html)

Although the parts they claim are things like vertex programming -
features that aren't present in older cards such as Mach64 -, it seems
obvious that these are features very important in the current and next
generation of graphics cards.

I would like to know your opinion about the influence this may have for
the DRI and Mesa3D projects in particular, and for the OpenGL API in 
general.

José Fonseca


---
This sf.net email is sponsored by:ThinkGeek
Gadgets, caffeine, t-shirts, fun stuff.
http://thinkgeek.com/sf
___
Dri-devel mailing list
[EMAIL PROTECTED]
https://lists.sourceforge.net/lists/listinfo/dri-devel



[Dri-devel] Microsoft IP claims over OpenGL

2002-07-12 Thread mocm

=?iso-8859-1?Q?Jos=E9?= Fonseca writes:
  Microsoft has been progressively claiming IP ownership of parts of the
  OpenGL API. (See http://news.zdnet.co.uk/story/0,,t269-s2118968,00.html)
  
  Although the parts they claim are things like vertex programming -
  features that aren't present in older cards such as Mach64 -, it seems
  obvious that these are features very important in the current and next
  generation of graphics cards.
  
  I would like to know your opinion about the influence this may have for
  the DRI and Mesa3D projects in particular, and for the OpenGL API in 
  general.
  
  José Fonseca
  

The question is if those patents are US only or if they are valid in
the rest of the world. Since they are software patents, they might not
be. This would mean that development would have to be done outside the
US and drivers could not be offered inside the US, except for research
purposes of course.

Marcus

-- 
/\
| Dr. Marcus O.C. Metzler|   |
||---|
| [EMAIL PROTECTED]| http://www.metzlerbros.de/|
\/



---
This sf.net email is sponsored by:ThinkGeek
Gadgets, caffeine, t-shirts, fun stuff.
http://thinkgeek.com/sf
___
Dri-devel mailing list
[EMAIL PROTECTED]
https://lists.sourceforge.net/lists/listinfo/dri-devel



Re: [Dri-devel] Microsoft IP claims over OpenGL

2002-07-12 Thread Allen Akin

On Sat, Jul 13, 2002 at 12:36:53AM +0100, José Fonseca wrote:
| I would like to know your opinion about the influence this may have for
| the DRI and Mesa3D projects in particular, and for the OpenGL API in 
| general.

Of course Microsoft would love to see OpenGL disappear, and has been
working toward that for many years.  It's wise not to be naive about
Microsoft's intentions.

However, it's not clear yet whether this particular move represents a
new threat.  Vendors are required to notify the OpenGL ARB when they
believe they have intellectual property claims on any feature that's
being proposed to the ARB.  (This is intended to prevent vendors from
allowing a feature to be included in the standard, then blackmailing all
the other vendors after they've shipped it.)  At this point, that's all
Microsoft has done.  If they had a history of operating in good faith,
then there'd be no great reason for concern.

Unfortunately, the process of licensing intellectual property to other
ARB vendors is not well-defined by the ARB bylaws.  So Microsoft could
cause problems by (a) delaying the licensing process so as to halt
progress on new versions of OpenGL, (b) requiring unacceptable licensing
terms (high royalties, cross-licensing of other intellectual property,
use only under Windows, etc.), or (c) licensing to only a few selected
vendors (excluding open source vendors, for example).

So far Microsoft has been using tactic (a).  You'll know it's time to
worry when there are signs that Microsoft is using tactics (b) or (c).

Allen


---
This sf.net email is sponsored by:ThinkGeek
Gadgets, caffeine, t-shirts, fun stuff.
http://thinkgeek.com/sf
___
Dri-devel mailing list
[EMAIL PROTECTED]
https://lists.sourceforge.net/lists/listinfo/dri-devel