Re: [Dri-devel] S3TC

2002-12-19 Thread Dieter Nützel
Am Donnerstag, 19. Dezember 2002 05:10 schrieb Linus Torvalds: > On Wed, 18 Dec 2002, magenta wrote: > > By implementing S3TC without a patent license, the DRI team would be > > opening the DRI project up for potential litigation. > > On the other hand, by being too timid, the DRI team can also eve

Re: [Dri-devel] S3TC

2002-12-19 Thread Dieter Nützel
Am Donnerstag, 19. Dezember 2002 16:32 schrieb Thomas Dodd: > Nicholas Leippe wrote: > >On Wednesday 18 December 2002 11:20 pm, you wrote: > >>On Wed, Dec 18, 2002 at 08:10:30PM -0800, Linus Torvalds wrote: > >>>You have to balance things out. Yes, the US is litiginous, and clearly > >>> way too mu

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2002-12-19 Thread C. Brewer
I would like to beg for the inclusion of #define PCIGART_ENABLED in radeon_dri.c, radeon_cp.c and the applied ring buffer tweak to the XFree86 CVS. The pci changes shouldnt affect any other system and do allow rather stable 3D accelerated environment, with a properly configured XF86Config-4 file

[Dri-devel] Re: DRM: possible DoS for vblank signals

2002-12-19 Thread Michel Dänzer
On Don, 2002-12-19 at 14:39, Michel Dänzer wrote: > Currently, an arbitrary number of signals can be scheduled, potentially > exhausting kernel memory and/or causing lots of useless list traversal > in the interrupt handler. I guess the number of pending signals needs to > be limited, or is there a

Re: [Dri-devel] S3TC

2002-12-19 Thread magenta
On Thu, Dec 19, 2002 at 12:43:48PM -0800, Andy Ross wrote: > magenta wrote: > > But they're not transferring the license to others, they're just > > providing a reference implementation. nVidia themselves wouldn't be > > sued for it, but someone releasing new software using that > > implementa

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Re: [Dri-devel] S3TC

2002-12-19 Thread Damien Miller
Geoffrey Antos wrote: I believe that it is safe to go ahead and implement S3TC texture decompression code in DRI. I don't understand why it is not possible for DRI to support S3TC on hardware that implements it. In this case the DRI wouldn't be *implementing* S3TC, just handing over pre-compre

Re: [Dri-devel] S3TC

2002-12-19 Thread Andy Ross
Ian Romanick wrote: > Andy Ross wrote: > > And there is no one involved with DRI with assets to pay such an > > award anyway. > > Except all the distros. How is that an argument against DRI implementing S3TC? If the distribution vendors don't want to ship it because of liability concerns, then th

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Re: [Dri-devel] S3TC

2002-12-19 Thread magenta
On Thu, Dec 19, 2002 at 11:32:02AM -0800, Linus Torvalds wrote: > > On Thu, 19 Dec 2002, Ian Romanick wrote: > > > > On Thu, Dec 19, 2002 at 10:59:24AM -0800, Andy Ross wrote: > > > And there is no one involved with DRI with assets to > > > pay such an award anyway. > > > > Except all the distros

Re: [Dri-devel] S3TC

2002-12-19 Thread Andy Ross
magenta wrote: > But they're not transferring the license to others, they're just > providing a reference implementation. nVidia themselves wouldn't be > sued for it, but someone releasing new software using that > implementation could be. By that same logic, DRI can't be sued for providing the c

Re: [Dri-devel] S3TC

2002-12-19 Thread Brian Paul
Thomas Dodd wrote: Nicholas Leippe wrote: On Wednesday 18 December 2002 11:20 pm, you wrote: On Wed, Dec 18, 2002 at 08:10:30PM -0800, Linus Torvalds wrote: You have to balance things out. Yes, the US is litiginous, and clearly way too much so. Is the answer to just cower in a hole and

Re: [Dri-devel] S3TC

2002-12-19 Thread Linus Torvalds
On Thu, 19 Dec 2002, Ian Romanick wrote: > > On Thu, Dec 19, 2002 at 10:59:24AM -0800, Andy Ross wrote: > > And there is no one involved with DRI with assets to > > pay such an award anyway. > > Except all the distros. I think that even wilful patent infringement only means "triple damages" (p

Re: [Dri-devel] S3TC

2002-12-19 Thread magenta
On Thu, Dec 19, 2002 at 10:59:24AM -0800, Andy Ross wrote: > magenta wrote: > > You don't understand how patents work, do you? All of those people > > (except OpenIL, anyway) have licensed the algorithm itself. The > > algorithm is freely-available (it's even part of the patent > > documents)

Re: [Dri-devel] S3TC

2002-12-19 Thread Ian Romanick
On Thu, Dec 19, 2002 at 10:59:24AM -0800, Andy Ross wrote: > And there is no one involved with DRI with assets to > pay such an award anyway. Except all the distros. -- Smile! http://antwrp.gsfc.nasa.gov/apod/ap990315.html --- This SF.NET em

Re: [Dri-devel] S3TC

2002-12-19 Thread Andy Ross
magenta wrote: > You don't understand how patents work, do you? All of those people > (except OpenIL, anyway) have licensed the algorithm itself. The > algorithm is freely-available (it's even part of the patent > documents). The problem is that S3 haven't released the patent to the > public dom

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Re: [Dri-devel] S3TC

2002-12-19 Thread D. Hageman
On Wed, 18 Dec 2002, Linus Torvalds wrote: > On Wed, 18 Dec 2002, magenta wrote: > > > > By implementing S3TC without a patent license, the DRI team would be > > opening the DRI project up for potential litigation. > > On the other hand, by being too timid, the DRI team can also eventually > doom

Re: [Dri-devel] S3TC

2002-12-19 Thread Thomas Dodd
Nicholas Leippe wrote: On Wednesday 18 December 2002 11:20 pm, you wrote: On Wed, Dec 18, 2002 at 08:10:30PM -0800, Linus Torvalds wrote: You have to balance things out. Yes, the US is litiginous, and clearly way too much so. Is the answer to just cower in a hole and hope it passes? May

Re: [Dri-devel] S3TC

2002-12-19 Thread Linus Torvalds
On Wed, 18 Dec 2002, magenta wrote: > > Also, what about doing hardware-only support, and just breaking for > software fallback? Then it'd be up to the hardware (which ostensibly has a > license) to implement the algorithm. That sounds like a good approach (and almost certainly acceptable for g

[Dri-devel] [Fwd: [Xpert]DRM: possible DoS for vblank signals]

2002-12-19 Thread Michel Dänzer
Had to change my mail setup to get this to sf.net... -- Earthling Michel Dänzer (MrCooper)/ Debian GNU/Linux (powerpc) developer XFree86 and DRI project member / CS student, Free Software enthusiast --- Begin Message --- Currently, an arbitrary number of signals can be scheduled, potentiall

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Re: [Dri-devel] S3TC

2002-12-19 Thread Nicholas Leippe
On Wednesday 18 December 2002 11:20 pm, you wrote: > On Wed, Dec 18, 2002 at 08:10:30PM -0800, Linus Torvalds wrote: > > > > You have to balance things out. Yes, the US is litiginous, and clearly way > > too much so. Is the answer to just cower in a hole and hope it passes? > > Maybe. And maybe no