Show newer

So what's going on here, audio-wise? (pt. 4) 

FLAC is also a conceptually simple-enough format to decode, when it comes down to it. The high-level design of nayuki.io/res/simple-flac-impl was my reference while writing the Rust version of the decoder, and as you can see it isn't too terribly complex.

However, that "restore_linear_prediction" function that's only two lines long in the Python code? Unrolling that became a ~500-line behemoth of handwritten inline ARMv4 assembly. Rockbox has a hand-optimized ARMv4 version of that function as well, and I haven't tested this to know for sure, but I'm pretty sure mine's a fair bit faster due to my version taking advantage of having the previous multiplied sums sitting in registers already to compute the next ones before writing them all to the output buffer. ARM has about 13 actually-usable general-purpose registers, and I use pretty much all of them here.

Show thread

Cosmopolitan C Library: "build-once run-anywhere c without devops"

justine.lol/cosmopolitan/index

Purports to create small ~40kb executables that run on Linux, Mac, Windows, FreeBSD, and OpenBSD. In the same binary.

Back in 1995 I sent an online friend a photo of a ferret plush "using" my computer.

And she sent me back the same thing.

Back then you had to take a photo on film, get it developed, and physically mail it. So this meant a lot more than it would now.

IT WAS SO CUTE DAMNIT.

How much funding did you take? $0

What's your marketing budget then? $0

You must have a great sales strategy? We don't do sales

You must use tons of sneaky website elements to trick people? None

You can grow without being annoying and without supporting the adtech.

fosstodon.org/@plausible/10538

politics, covid, bigtech 

@aperezdc The funniest thing is that the tech giants share their tracking data with governments.

Also related: microG has an implementation of the exposure notification API nowadays, which also uses the plain Bluetooth API itself, ad far as my little understanding goes after some grepping: github.com/microg/GmsCore/comm

Show thread

Today, in Tech Megacorps Suck: developer writes a proof of concept application showing that the normal Bluetooth API was always enough to do contact tracking, and that there was no need for Google to add new API to Android (which potentially can be another point where to tap to collect more user data). Result: developer gets application banned from Play Store: github.com/marq24/UUID0xFD6FTr

politics, covid, bigtech 

Amusing how the very same people who think their government will track then using “something” in the COVID19 vaccines does not seem to have any problem at all with tech giants (Facebook, Google, Amazon, etc.) doing that already 🤷

4M Docker images analyzed, over 50% have critical vulnerabilities, plenty include malicious stuff.

Why am I not surprised? The premise of Docker is to run the app in whatever version of the stack works at dev time.

Updating packages is time-consuming.

securityweek.com/analysis-4-mi

Am I the only one annoyed when a new version of a font slightly changes some metrics and suddenly many things are off by one or two pixels?

breadposting, happy face 

Today's bread is as happy as ヅ

There is something wrong when an assembler for 8-bit CPUs has a docker container and the first line of that Dockerfile is "FROM ubuntu".

So you're running a full linux OS on top of a full linux OS to run a 200K binary for an 8-bit 6502 with probably 64K of RAM.

@nolan I have only been on one side of this complexity madness, mostly having stayed away from the JS ecosystem.

When we choose Google's tools without being anywhere close to Google's scale of operations, we still have to pay for the complexity of tools created for a scale several orders of magnitude higher.

Kubernetes drives up the complexity of your infrastructure a lot, even more so when using it with AWS EKS. Most teams don't need it, and don't realize that they don't need it.

It seems that I forgot to mention here that this year I am also trying to do the and my solutions are going to be pushed now and then to git.sr.ht/~aperezdc/aoc2020

This year I'm trying out janet-lang.org for the fun of it and so far I'm finding its PEG module quite enjoyable for parsing text input. I might switch languages anytime, though. Mostly depending on the time I have each day and what could be more appropriate for each task.

Gah! The horror!

dtinth.github.io/comic-mono-fo

(Though I am sure there are people who would actually _think_ that they like it.)

the two unsolved problems in computer science: localization, time, and off by one errors

Show older
Mastodon

Server run by the main developers of the project 🐘 It is not focused on any particular niche interest - everyone is welcome as long as you follow our code of conduct!

<svg xmlns="http://www.w3.org/2000/svg"><symbol id="mastodon-svg-logo" viewBox="0 0 216.4144 232.00976"><path d="M107.86523 0C78.203984.2425 49.672422 3.4535937 33.044922 11.089844c0 0-32.97656262 14.752031-32.97656262 65.082031 0 11.525-.224375 25.306175.140625 39.919925 1.19750002 49.22 9.02375002 97.72843 54.53124962 109.77343 20.9825 5.55375 38.99711 6.71547 53.505856 5.91797 26.31125-1.45875 41.08203-9.38867 41.08203-9.38867l-.86914-19.08984s-18.80171 5.92758-39.91796 5.20508c-20.921254-.7175-43.006879-2.25516-46.390629-27.94141-.3125-2.25625-.46875-4.66938-.46875-7.20313 0 0 20.536953 5.0204 46.564449 6.21289 15.915.73001 30.8393-.93343 45.99805-2.74218 29.07-3.47125 54.38125-21.3818 57.5625-37.74805 5.0125-25.78125 4.59961-62.916015 4.59961-62.916015 0-50.33-32.97461-65.082031-32.97461-65.082031C166.80539 3.4535938 138.255.2425 108.59375 0h-.72852zM74.296875 39.326172c12.355 0 21.710234 4.749297 27.896485 14.248047l6.01367 10.080078 6.01563-10.080078c6.185-9.49875 15.54023-14.248047 27.89648-14.248047 10.6775 0 19.28156 3.753672 25.85156 11.076172 6.36875 7.3225 9.53907 17.218828 9.53907 29.673828v60.941408h-24.14454V81.869141c0-12.46875-5.24453-18.798829-15.73828-18.798829-11.6025 0-17.41797 7.508516-17.41797 22.353516v32.375002H96.207031V85.423828c0-14.845-5.815468-22.353515-17.417969-22.353516-10.49375 0-15.740234 6.330079-15.740234 18.798829v59.148439H38.904297V80.076172c0-12.455 3.171016-22.351328 9.541015-29.673828 6.568751-7.3225 15.172813-11.076172 25.851563-11.076172z" /></symbol></svg> <svg xmlns="http://www.w3.org/2000/svg"><symbol id="mastodon-svg-logo-full" viewBox="0 0 713.35878 175.8678"><path d="M160.55476 105.43125c-2.4125 12.40625-21.5975 25.9825-43.63375 28.61375-11.49125 1.3725-22.80375 2.63125-34.8675 2.07875-19.73-.90375-35.2975-4.71-35.2975-4.71 0 1.92125.11875 3.75.355 5.46 2.565 19.47 19.3075 20.6375 35.16625 21.18125 16.00625.5475 30.2575-3.9475 30.2575-3.9475l.65875 14.4725s-11.19625 6.01125-31.14 7.11625c-10.99875.605-24.65375-.27625-40.56-4.485C6.99851 162.08 1.06601 125.31.15851 88-.11899 76.9225.05226 66.47625.05226 57.74125c0-38.1525 24.99625-49.335 24.99625-49.335C37.65226 2.6175 59.27976.18375 81.76351 0h.5525c22.48375.18375 44.125 2.6175 56.72875 8.40625 0 0 24.99625 11.1825 24.99625 49.335 0 0 .3125 28.1475-3.48625 47.69" fill="#3088d4"/><path d="M34.65751 48.494c0-5.55375 4.5025-10.055 10.055-10.055 5.55375 0 10.055 4.50125 10.055 10.055 0 5.5525-4.50125 10.055-10.055 10.055-5.5525 0-10.055-4.5025-10.055-10.055M178.86476 60.69975v46.195h-18.30125v-44.8375c0-9.4525-3.9775-14.24875-11.9325-14.24875-8.79375 0-13.2025 5.69125-13.2025 16.94375V89.2935h-18.19375V64.75225c0-11.2525-4.40875-16.94375-13.2025-16.94375-7.955 0-11.9325 4.79625-11.9325 14.24875v44.8375H73.79851v-46.195c0-9.44125 2.40375-16.94375 7.2325-22.495 4.98-5.55 11.50125-8.395 19.595-8.395 9.36625 0 16.45875 3.59875 21.14625 10.79875l4.56 7.6425 4.55875-7.6425c4.68875-7.2 11.78-10.79875 21.1475-10.79875 8.09375 0 14.61375 2.845 19.59375 8.395 4.82875 5.55125 7.2325 13.05375 7.2325 22.495M241.91276 83.663625c3.77625-3.99 5.595-9.015 5.595-15.075 0-6.06-1.81875-11.085-5.595-14.9275-3.63625-3.99125-8.25375-5.91125-13.84875-5.91125-5.59625 0-10.2125 1.92-13.84875 5.91125-3.6375 3.8425-5.45625 8.8675-5.45625 14.9275 0 6.06 1.81875 11.085 5.45625 15.075 3.63625 3.8425 8.2525 5.76375 13.84875 5.76375 5.595 0 10.2125-1.92125 13.84875-5.76375m5.595-52.025h18.04625v73.9h-18.04625v-8.72125c-5.455 7.2425-13.01 10.79-22.80125 10.79-9.3725 0-17.34625-3.695-24.06125-11.23375-6.57375-7.5375-9.93125-16.84875-9.93125-27.785 0-10.78875 3.3575-20.10125 9.93125-27.63875 6.715-7.5375 14.68875-11.38 24.06125-11.38 9.79125 0 17.34625 3.5475 22.80125 10.78875v-8.72zM326.26951 67.258625c5.315 3.99 7.97375 9.60625 7.83375 16.7 0 7.53875-2.65875 13.45-8.11375 17.58875-5.45625 3.99125-12.03 6.06-20.00375 6.06-14.40875 0-24.20125-5.9125-29.3775-17.58875l15.66875-9.31c2.0975 6.35375 6.71375 9.60625 13.70875 9.60625 6.43375 0 9.6525-2.07 9.6525-6.35625 0-3.10375-4.1975-5.91125-12.73-8.1275-3.21875-.8875-5.87625-1.77375-7.97375-2.51375-2.9375-1.18125-5.455-2.5125-7.55375-4.1375-5.17625-3.99-7.83375-9.3125-7.83375-16.11 0-7.2425 2.5175-13.00625 7.55375-17.145 5.17625-4.28625 11.47-6.355 19.025-6.355 12.03 0 20.84375 5.1725 26.5775 15.66625l-15.38625 8.8675c-2.23875-5.02375-6.015-7.53625-11.19125-7.53625-5.45625 0-8.11375 2.06875-8.11375 6.05875 0 3.10375 4.19625 5.91125 12.73 8.12875 6.575 1.4775 11.75 3.695 15.5275 6.50375M383.626635 49.966125h-15.8075v30.7425c0 3.695 1.4 5.91125 4.0575 6.945 1.95875.74 5.875.8875 11.75.59125v17.29375c-12.16875 1.4775-20.9825.295-26.15875-3.69625-5.175-3.8425-7.69375-10.93625-7.69375-21.13375v-30.7425h-12.17v-18.3275h12.17v-14.9275l18.045-5.76375v20.69125h15.8075v18.3275zM441.124885 83.2205c3.6375-3.84375 5.455-8.72125 5.455-14.6325 0-5.91125-1.8175-10.78875-5.455-14.63125-3.6375-3.84375-8.11375-5.76375-13.57-5.76375-5.455 0-9.93125 1.92-13.56875 5.76375-3.4975 3.99-5.31625 8.8675-5.31625 14.63125 0 5.765 1.81875 10.6425 5.31625 14.6325 3.6375 3.8425 8.11375 5.76375 13.56875 5.76375 5.45625 0 9.9325-1.92125 13.57-5.76375m-39.86875 13.15375c-7.13375-7.5375-10.63125-16.70125-10.63125-27.78625 0-10.9375 3.4975-20.1 10.63125-27.6375 7.13375-7.5375 15.9475-11.38 26.29875-11.38 10.3525 0 19.165 3.8425 26.3 11.38 7.135 7.5375 10.77125 16.84875 10.77125 27.6375 0 10.9375-3.63625 20.24875-10.77125 27.78625-7.135 7.53875-15.8075 11.2325-26.3 11.2325-10.49125 0-19.165-3.69375-26.29875-11.2325M524.92126 83.663625c3.6375-3.99 5.455-9.015 5.455-15.075 0-6.06-1.8175-11.085-5.455-14.9275-3.63625-3.99125-8.25375-5.91125-13.84875-5.91125-5.59625 0-10.2125 1.92-13.98875 5.91125-3.63625 3.8425-5.45625 8.8675-5.45625 14.9275 0 6.06 1.82 11.085 5.45625 15.075 3.77625 3.8425 8.5325 5.76375 13.98875 5.76375 5.595 0 10.2125-1.92125 13.84875-5.76375m5.455-81.585h18.04625v103.46h-18.04625v-8.72125c-5.315 7.2425-12.87 10.79-22.66125 10.79-9.3725 0-17.485-3.695-24.2-11.23375-6.575-7.5375-9.9325-16.84875-9.9325-27.785 0-10.78875 3.3575-20.10125 9.9325-27.63875 6.715-7.5375 14.8275-11.38 24.2-11.38 9.79125 0 17.34625 3.5475 22.66125 10.78875v-38.28zM611.79626 83.2205c3.63625-3.84375 5.455-8.72125 5.455-14.6325 0-5.91125-1.81875-10.78875-5.455-14.63125-3.6375-3.84375-8.11375-5.76375-13.57-5.76375-5.455 0-9.9325 1.92-13.56875 5.76375-3.49875 3.99-5.31625 8.8675-5.31625 14.63125 0 5.765 1.8175 10.6425 5.31625 14.6325 3.63625 3.8425 8.11375 5.76375 13.56875 5.76375 5.45625 0 9.9325-1.92125 13.57-5.76375m-39.86875 13.15375c-7.135-7.5375-10.63125-16.70125-10.63125-27.78625 0-10.9375 3.49625-20.1 10.63125-27.6375 7.135-7.5375 15.9475-11.38 26.29875-11.38 10.3525 0 19.165 3.8425 26.3 11.38 7.135 7.5375 10.77125 16.84875 10.77125 27.6375 0 10.9375-3.63625 20.24875-10.77125 27.78625-7.135 7.53875-15.8075 11.2325-26.3 11.2325-10.49125 0-19.16375-3.69375-26.29875-11.2325M713.35876 60.163875v45.37375h-18.04625v-43.00875c0-4.8775-1.25875-8.5725-3.77625-11.38-2.37875-2.5125-5.73625-3.84375-10.0725-3.84375-10.2125 0-15.3875 6.06-15.3875 18.3275v39.905h-18.04625v-73.89875h18.04625v8.27625c4.33625-6.94625 11.19-10.345 20.84375-10.345 7.69375 0 13.98875 2.66 18.885 8.12875 5.035 5.46875 7.55375 12.85875 7.55375 22.465"/></symbol></svg>