Trying to do RGBA->RGB conversion with AVX. Yes, it is trivial task. No, I don't get speedup over trivial code.

Camera ISP: Does denoise come before or after debayer? I see "illogical" order in the paper, and I believe that logical order should also be easier to implement...

@martijnbraam I see you are doing a lot of work on dng processing. I'm trying to do raw processing on GPU to enable video recording. Do you have any good pointers on dng processing? Did you do or do you plan to play with video recording?

I'd like to do command-line application that uses GPU to do some some computation with graphics. (Debayer, maybe more). Need it to work on old systems (Debian 11, PinePhone). What libraries/frameworks should I look at?

libcamera is normally built with -O0. Now I understand first version of debayer algorithm...

"Creative society" aka "AllatRa" tried to spam me with their nonsense about some kind of infinite energy source again today. They are millenial sect, quite popular in Czech republic :-(. https://cs.wikipedia.org/wiki/AllatRa With hundreds of members, intensive trolling, I believe they should have article on english wikipedia, too, but so far I was not able to accomplish that. If someone can help...

Bad thing about Li-ion batteries is that each phone seems to have its own size. I have interesting/mystery Firefox OS phone, that came without battery and refuses to turn on. But there's a good thing, too. There are so many Li-ion powered devices that you may have "compatbile" battery, already. I did. Battery from Winner WG8 seems to fit inside mystery phone case. Ok, it needs a lot of padding... but I may be able to try the phone out. Not sure if trying to charge it in it is good idea, but...

RGB888 in libcamera is same as BGR24 in SDL. Of course, RGB24 _and_ RGB888 exist in SDL, too... they are just different.

Outside, there's a heap of snow, and more is falling. It's not great for riding, so I opt for cross-country skis. At the last minute, I realize I don't have any snacks, so I grab two apples. I encounter a family, and they ask if I'm taking the horse for a ski ride. I say yes. A little later, we pass by them, and they mention they "expected the horse to pull me." Alright then, I grab onto the mane, and Zlutak starts trotting. They have to admit that it's pulling me, but half of the apple is gone. We repeat the exercise, and the other half of the apple disappears into the horse's mouth. I'll save the rest for the way back...

We turn around, and I probably won't need the lead anymore, so I turn it into a loop around its neck so I don't have to pull on the mane. Zlutak looks excited, so we go... Interestingly, he somehow manages to understand what I want from it, even when I'm pulling on the same piece of rope I'm trying to steer with. He's just clever. We stop with a verbal command, and it deserves a piece of apple... well, except the apple disappears entirely. For a moment, I consider that maybe he just wants to go home, so if I just stick to... but no, that would be unfair.

Now I have an excited horse and no snacks. I stand in front of him, and surprisingly... the horse seems to understand that the lesson is over and follows me without much fuss. Great!

Venku je kupa snehu, a dalsi pada. Na jezdeni to... no moc neni, tak beru bezky. Na posledni chvili si uvedomuju, ze nemam zadny pamlsky, tak beru aspon dve jablka. Potkavam nejakou rodinku, jestli pry beru kone z bezkama.. a ja ze jo. Za chvili jdem kolem nich, a ze pry "cekali ze kun potahne me". No tak jo, chytam se za hrivu a zlutej jde do klusu. Musi uznat ze me tahne, ale pul jablka je pryc. Opakujem cviceni, a v konovi mizi i druha pulka. Zbytek posetrim na cestu zpet...
Otacime to, a voditko uz nejspis nebudu potrebovat, tak z nej delam smycku okolo krku abych ho nemusel tahat za hrivu. A kun vypada nadsene, tak jedem... Zajimavy je, ze nejak zvlada poznat co po nem chci, a to i kdyz me tahne za stejnej kus spagatu kterym se snazim ridit. Je proste sikovnej. Zastavujem na slovni povel, zaslouzi si kus jablka ... no jenze jablko v nem mizi cely. Chvili uvazuju, ze on domu proste chce, takze kdyz se proste budu drzet... ale ne, to by bylo nefer.
Jenze ted mam nadsenyho kone a zadny pamlsky. Radim se pred nej a kupodivu... kun nejak pochopil ze to je konec lekce, a bez vetsiho spechu me nasleduje. Fajn!
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@caleb
@cas I'd really like to see a small phone. Ideally something like Nokia 6230 -- less than 100g, can do calls, connect something else if you want to browse the web. Espruino + serial modem should do the trick. Can help with the software parts. Probably could hack together the boards, too, but case would be harder for me and this is really project for a group. (Currently using Geeksphone in this role).

Facebook's "give us your many or your personal data" choice seemed very wrong to me. I'm glad I was not the only one. https://www.seznamzpravy.cz/clanek/ekonomika-meta-celi-obvineni-ze-v-evrope-pouziva-nekale-obchodni-praktiky-240700

"Bad Apple" is like "Hello world" but with dancing girls. I need one for my watch.

The #Linux on #Mobile stand will be at #FOSDEM once again this year!

We're looking forward to showing off devices running #SailfishOS, #postmarketOS, #Mobian, #PureOS, #UBports, #Droidian and #CalyxOS as well as devices from #MNT Research.

What a line up!

Last year we got a phenomenal response. We're hoping this year will be even bigger and better.

https://www.flypig.co.uk/fosdem24-lom/

FOSDEM'24 is in Brussels 3-4 February 2024. Looking forward to seeing you there!

https://fosdem.org/2024/

Is it possible to run web server inside web browser with appropriate permissions? I'd like to do that on FirefoxOS.

RP2040 has a ROM. That was somehow expected. But software on the boad actually calls the ROM during runtime, because it would be shame to have unused space in 16KB ROM. Wow, I did not expect that one.

Got qemu to emulate Original Espruino. That was easy but rp2040 may be a lot (or too much) work. https://gitlab.com/tui/qemu/-/tree/devel?ref_type=heads

I believe rp2040 needs to be supported by qemu... but this is my first encounter with qemu. Hints would be welcome. I can't believe I'm first one to need it.

Venkovni teplomer ukazuje -34.7Celsia. Hadam, ze problem neni ve spatne umistenem teplomeru... a teda trochu se bojim vystrcit nos :-).

Got Geeksphone Keon to play with (thanks!). It is interesting little device. 120 grams, old and cheap, but should do wifi tether and is good size. Not replacing my droid 4 anytime soon, but it may get its SIM card.