Re: [PATCH] drm/fourcc: add LINEAR modifiers with an exact pitch alignment

2025-01-20 Thread Laurent Pinchart
oes this seem like something worth pursuing to others? I've been trying > to decide how to best move the allocation constraints efforts forward, > so it's potentially something I could put some time into this year. It's a fairly interesting idea I hadn't thought of. My limited experience with all the graphics protocols and their history means I have had limited exposure to the pain that communicating modifiers everywhere has generated. As a result, I would have (perhaps naively) tried to design a new mechanism. Using modifiers as a transport mechanism is clearly a hack, but it may be a clever one. It seems worth experimenting with it at least. After reading the whole thread, I however wonder if this will be backward compatible. If two devices expose a constraint that ends up being encoded in the same binary form in a modifier (let's say for instance the same pitch alignment), isn't there a risk that an application not aware of this new scheme will pick that common modifier when intersecting the modifiers list as done today, without realizing it's not a real modifier ? -- Regards, Laurent Pinchart

Re: [PATCH] drm/fourcc: add LINEAR modifiers with an exact pitch alignment

2025-01-20 Thread Laurent Pinchart
agree with your concern in general, AFAIK there's no other > solution for this even on the horizon, after years of talking about > it. The solution proposed here seems like an acceptable stop gap, > assuming it won't result in a gazillion linear modifiers. Flipping that argument, the reason why we still have no solution is because we've constantly accepted stop-gap measures. Maybe it's time to stop. It may feel a bit unfair to Marek that everybody until know got away with hacks, but I don't think he would be left alone designing a proper solution. -- Regards, Laurent Pinchart

Re: [PATCH] drm/fourcc: add LINEAR modifiers with an exact pitch alignment

2025-01-20 Thread Laurent Pinchart
t that to be the majority case, but I can't rule it out either. There's also the issue that, even if the devices support configurable pitches, the drivers may not implement it. That's fixable, but hardcoding the pitch to 256 bytes without fixing that would be a regression. -- Regards, Laurent Pinchart

Re: 2024 X.Org Foundation Membership deadline for voting in the election

2024-04-02 Thread Laurent Pinchart
I know for sure of one other person falling > for the same. Make that two. Thanks for the notice. > Now, the members page for this year says "Application for the period: > 02/2024-02/2025". Thanks to the people adding the month to reduce > confusion. -- Regards, Laurent Pinchart

Re: 2023 X.Org Foundation Membership deadline for voting in the election

2023-04-17 Thread Laurent Pinchart
the > > upcoming election is 26 March 2023 at 23:59 UTC. > > > > If you are interested in joining the X.Org Foundation or in renewing > > your membership, please visit the membership system site at: > > https://members.x.org/ > > > > Ricardo Garcia, on behalf of the X.Org elections committee -- Regards, Laurent Pinchart

Re: [Mesa-dev] Plumbing explicit synchronization through the Linux ecosystem

2020-03-16 Thread Laurent Pinchart
Hi Jason, On Mon, Mar 16, 2020 at 10:06:07AM -0500, Jason Ekstrand wrote: > On Mon, Mar 16, 2020 at 5:20 AM Laurent Pinchart wrote: > > On Wed, Mar 11, 2020 at 04:18:55PM -0400, Nicolas Dufresne wrote: > >> (I know I'm going to be spammed by so many mailing list ...) > &

Re: [Mesa-dev] Plumbing explicit synchronization through the Linux ecosystem

2020-03-16 Thread Laurent Pinchart
rantee on the order in which buffers will be used. I'm aware this wouldn't be compatible with explicit synchronization, and that's my point: camera hardware may not always support explicit synchronization. As long as we can fall back to not using fences then we should be fine. -- Regards, Laurent Pinchart ___ mesa-dev mailing list mesa-dev@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/mesa-dev

Re: [Mesa-dev] Plumbing explicit synchronization through the Linux ecosystem

2020-03-16 Thread Laurent Pinchart
ould like to break things apart. Towards that end, I have > > > an actual proposal. > > > > > > A couple weeks ago, I sent a series of patches to the dri-devel > > > mailing list which adds a pair of new ioctls to dma-buf which allow > > &

[Mesa-dev] CFP for Graphics and Display uConf at LPC 2013

2013-07-17 Thread Laurent Pinchart
t the microconference, please feel free to contact us. Looking forward to seeing everyone in New Orleans. -- Thanks in advance, Jesse Barker (jesse 'dot' barker 'at' arm 'dot' com) Laurent Pinchart (laurent 'dot' pinchart 'at' ideasonboard 'dot