DDraceNetwork - developer

DDraceNetwork

Development / developer

Development discussion. Logged to https://ddnet.tw/irclogs/ Connected with DDNet's IRC channel, Matrix room and GitHub repositories — IRC: #ddnet on Quakenet | Matrix: #ddnet-developer:matrix.org GitHub: https://github.com/ddnet

Between 2022-07-04 00:00:00Z and 2022-07-05 00:00:00Z

[ddnet/ddnet] Pull request opened: #5552 Update simplified_chinese.txt

rephrase old translation to match new patch

Checklist

[ ] Tested the change ingame
[ ] Provided screenshots if it is a visual change
[ ] Tested in combination with possibly related configuration options
[ ] Written a unit test if it works standalone, system.c especially
[ ] Considered possible null pointers and out of bounds array indexing
[ ] Changed no physics that affect existing maps
[ ] Tested the change with [ASan+UBSan or valgrind's memcheck](https://github...

GitHub

Click to see attachment 🖼️

@deen hope you can merge it before release 16.2, just realise i uploaded wrong translate file which have 1 translation error

Patiga

@Jupstar ✪ its this time of the month again!

^^ very hard mystery solved

https://www.reddit.com/r/ProgrammerHumor/comments/vqrv2m/when_i_execute_my_sql_query_and_realize_i_forgot/

r/ProgrammerHumor - When I execute my SQL query and realize I forgo...

9,290 votes and 278 comments so far on Reddit

[ddnet:master] 2 new commits

f469c43 Update simplified_chinese.txt - Cheeser0613 7dc0c98 Merge #5552 - bors[bot]

07:41

[ddnet/ddnet] Pull request closed: #5552 Update simplified_chinese.txt

https://hackaday.com/2022/07/04/need-a-linux-kernel-module-scratch-that/

Need A Linux Kernel Module? Scratch That

If you have been for (or against) Rust in the Linux kernel, get ready for a Linux kernel module written in… Scratch. That’s right. Scratch, the MIT-developed language with blocks popula…

10:06

sueur

10:07

U can now teach ur boy to make kernel modules

deen

And someone is still redirecting http://ddrace.info/ to us

I do

10:22

@Jupstar ✪ the one definition rule also applies to non-member static stuff?

louis

in case there are large skips in a map

I guess the only reason for this is if parts of a map can be done out of order. But skips would normally only lead to checkpoints with higher number but not to lower, then higher again. But if nobody has concerns about it I can implement it. (edited)

10:41

That would also help, if mappers accidentally placed the checkpoints in wrong order.

that's probably mitigated by the testing process

10:41

but yes, I also see no concerns to allow checkpoints out of order

Does anyone know if pdfs can be encoded with anything else than utf8

11:15

Implementing a parser in rust with nom atm

wdym, utf8 encoding in pdfs?

11:29

the text parts?

11:30

the pdf objects themselves can be compressed and definitely aren't valid utf-8 anymore in that case

heinrich5991

@Jupstar ✪ the one definition rule also applies to non-member static stuff?

Only if u do jumbo builds

I mean the strings for example

11:41

Ik streams can be anything

haven't found a good source; it seems you can have encodings different from utf-8, I haven't found that you can actually use utf-8

11:45

"MacRomanEncoding", "WinAnsiEncoding"

cheeser0613

@deen hope you can merge it before release 16.2, just realise i uploaded wrong translate file which have 1 translation error

sure

Image attachment

12:48

PDF supports one fundamental string object (see 7.3.4, "String Objects"). The string object shall be further qualified as a text string, a PDFDocEncoded string, ASCII string, or byte string. The further qualification reflects the encoding used to represent the characters or glyphs described by the string

12:48

all encodings should burn in hell and only utf8 exist thanks for coming to my ted talk

12:49

Sadge

Quickly delete it or someone will come tell you about the benefits of utf32 and how ram is cheap

The #server-bridge channel on my server contains over 5 million messages, and if I try to search anything in there, it wont show newer results than 06.06.2022 :D

13:25

It seems to be very broken, lol

13:27

Even without any filter, it does only show messages up to 06.06.

Image attachment

the internet forgets

[ddnet/ddnet] Pull request opened: #5553 Fix skindownload by only allowing move assignments

fixes #5551

Checklist

[x] Tested the change ingame
[ ] Provided screenshots if it is a visual change
[ ] Tested in combination with possibly related configuration options
[ ] Written a unit test if it works standalone, system.c especially
[ ] Considered possible null pointers and out of bounds array indexing
[ ] Changed no physics that affect existing maps
[ ] Tested the change with [ASan+UBSan or valgrind's memcheck](https://github.com/ddnet/ddnet/#using-addresss...

[ddnet:master] 2 new commits

edc79e4 Fix skindownload by only allowing move assignments - Jupeyy b955d68 Merge #5553 - bors[bot]

16:46

[ddnet/ddnet] Issue closed: #5551 Skins aren't downloading anymore

16:46

[ddnet/ddnet] Pull request closed: #5553 Fix skindownload by only allowing move assignments

ReiTW

https://hackaday.com/2022/07/04/need-a-linux-kernel-module-scratch-that/

finally, something that i CAN do

xD

ive been using scratch since forever, so thats like, my only fluent coding language

GitHub

Click to see attachment 🖼️

Rule of Three, learned something new. Thanks for the fix. @Jupstar ✪ (edited)

ReiTW

sueur

is that Manuel Valls?

i gave up on making a pdf parser

19:12

too much work and too little time

19:13

but nom the library is rly gud

Chairn

is that Manuel Valls?

YES

Learath2

Quickly delete it or someone will come tell you about the benefits of utf32 and how ram is cheap

utf8 & utf16 are best, #5490 & #4348 & #4111 & #3938 & #3331 & #3285 & #2742 & #2724 & #2534 & #1423 & #1396 & #231 agree sry for github spam, you can ban me now

19:22

nice github ignores

19:23

lets just force english only

19:23

and do no encoding

"no encoding"

19:23

you mean ascii

19:23

that's pretty widely supported, yes

My initial message actually had s/someone/jupstar/

and I think those issues rather speak volumes to the bad encoding support of C/C++, not UTF-8

I know my audience

i only saw it bcs ryozuki talked about a PDF parser

19:24

well variable lengthed stuff simply sucks to deal with

utf-32 doesn't help you with that

19:25

you have combining accents etc.

yeah if you pro enough to respect it xD

19:25

we dont do it

But not using a billion tb of ram simply rocks

our game still works

Jupstar ✪

yeah if you pro enough to respect it xD

I think you still need to atleast skip that

Learath2

But not using a billion tb of ram simply rocks

xDDD

Learath2

I think you still need to atleast skip that

not really

19:26

its one by one codepoints

what do you gain from that?

from what

having codepoints one by one in an array

its fixed length

you say that like it's some directly desirable goal

19:27

I don't see that

You can't even index into that properly either, no? Chopping utf32 at the end accidentally still breaks strings too

rust also cannot handle grapheme clusters, i dunno what we talk about rn

@Jupstar ✪ there's a grapheme clusters crate

Learath2

You can't even index into that properly either, no? Chopping utf32 at the end accidentally still breaks strings too

but why also dont support it rn

yes, but why is utf-32 beneficial?

bcs u know the str length directly

19:29

u can access code points directly

string length doesn't exist, unless you specify what you mean by it

Do you? I think accents break that too

I don't know a single use case for 'direct code point access'

only grapheme clusters

19:29

we dont use them

19:30

the characters also exists as "normal" character

19:30

single code point

only those that were also present in legacy encodings

19:30

AFAIK

i mean if we want smiley support maybe

but you haven't told us yet what access to 'number of codepoints' helps

?

[9:28 PM] heinrich5991: yes, but why is utf-32 beneficial? [9:29 PM] Jupstar: bcs u know the str length directly [9:29 PM] Jupstar: u can access code points directly

yes

these don't sound like end goals, so what do they enable? (edited)

performance ez

okay, tell me a thing where they enable more performance

u dont need to decode

19:32

just pass to freetype

you need to decode at some point. why is 'string rendering' a bad place for it?

freetype accepts utf32 codepoints

yes. you need to encode your string into utf32 at some point

19:33

why is 'string rendering' a bad place for that?

what do you want to encode?, our rendering still doesnt support multiple characters

you said you need to encode your string into utf32 to pass it to freetype

19:34

so at some point in the program that needs to happen

19:34

why is 'string rendering' a bad place for it?

well but we only support single codepoints and they fit into utf32 without encoding

19:34

have u seen utf32 code in our code?

we seem to be talking massively past each other

19:35

freetype accepts strings as utf-32, according to you, right?

yes and our utf8 decode results in exactly the same value

okay, so we need to perform the string conversion into utf-32 (that we currently also perform) at some point in our program

no

do we currently perform a string conversion into utf-32?

well only once at IO level

so yes

if we dont make the IO also use utf32

19:36

yeah but whats faster, once or every frame?

I don't actually know

RAM is free af xd

depends on the cache effects of strings being 4 times as large

well cache, what cache, L3?

19:37

l1 wont fit most strings anyway

19:37

also not utf8

but it'll fit up to 4 times as many strings

yeah, but teeworlds is no text editor

19:38

take 1000 chat msg

19:39

and u are still around 1MByte only

but you just claimed that using more cache for strings makes the program faster than decoding them on-the-fly

19:39

how is 'teeworlds is no text editor' a retort to this?

i mean with that, its not using like 3000000 lines of code or smth

19:40

u know its not an hard edge case

yes

but go ahead do benchmarks, i bet against utf8

great, then we'll just do what most programs do and use utf-8

19:40

since we're not an edge case

so we do what most programs do and use a software renderer?

19:41

or console rendering? xd

19:42

well anyway, i only trust benchmarks, and discussing such topics is annoying.

you started it ^^

19:42

you proclaimed that using utf-32 would be faster

and safer

19:43

yes

(I haven't seen a benchmark, but I'm googling)

Jupstar ✪

and safer

"i only strust benchmarks"

19:43

where's your benchmark?

the issues i posted

where does it say that utf-8 is slower?

slower in coding right stuff

19:43

and concentrate into improving vulkan afterwards

okay, so you didn't intend to make a call about runtime performance

for more fps

fine

well i did obviously, code correctness is always top prio

19:44

without that your performance is not worth it

I don't understand

19:44

are you making a claim about runtime performance?

yeah sure

if so, where's the benchmark?

i bet its faster for us

you claimed you only trust benchmarks

yes, have i implemented utf32 yet?

okay, so that's a claim without a benchmark

19:45

I see

i have no benchmarks, i say i bet against utf8

19:45

no

19:45

i said that

Jupstar ✪

but go ahead do benchmarks, i bet against utf8

here

19:46

bet != proof

[9:42 PM] Jupstar: well anyway, i only trust benchmarks, and discussing such topics is annoying. [9:42 PM] heinrich5991: you started it ^^ [9:42 PM] heinrich5991: you proclaimed that using utf-32 would be faster [9:42 PM] Jupstar: and safer

yeah i still claim it, but i cannot proof the claim

19:47

i am not saying it's a MUST

okay

19:53

I was probably too confrontative. sorry @Jupstar ✪

utf8 is the best

20:03

>

The number of code units per Unicode character is variable, because not all characters are in the BMP. Until emoji became popular, this didn't affect many apps in day-to-day use. These days, certainly for messaging apps and the like, developers using UTF-16 really need to know about surrogate pairs.

>

For plain ASCII (which a lot of text is, at least in the west) it takes twice the space of the equivalent UTF-8 encoded text.

when utf-64 ?

21:05

is that even enough for all diacritic combination ?

21:05

not even sure

utf128 we can use vector instructions

have you already forgotten about the blessed mmx instruction set

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