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Tetsuo

@ Tetsuo @jlai.lu

Posts
0
Comments
490
Joined
3 yr. ago

  • PNG has been updated for the first time in 22 years — new spec supports HDR and animation

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  • I did check some of the references.

    What I dont understand is why you would perceive this content as more trustworthy if I didn't say it's AI.

    Nobody should trust blindly some anonymous comment on a forum. I have to check what the AI blurbs out but you can just gobble the comment of some stranger without exercising yourself some critical thinking?

    As long as I'm transparent on the source and especially since I did check some of it to be sure it's not some kind of hallucination...

    There shouldn't be any difference of trust between some random comment on a social network and what some AI model thinks on a subject.

    Also it's not like this is some important topic with societal implications. It's just a technical question that I had (and still doesn't) that doesn't mandate researching. None of my work depends on that lib. So before my comment there was no information on compatibility. Now there is but you have to look at it critically and decide if you want to verify or trust it.

    That's why I regret this kind of stubborn downvoting where people just assume the worse instead of checking the actual data.

    Sometime I really wonder if I'm the only one supposed to check my data? Aren't everybody here capable of verifying the AI output if they think it's worth the time and effort?

    Basically, downvoting here is choosing "no information" rather than "information I have to verify because it's AI generated".

    Edit: Also I could have just summarized the AI output myself and not mention AI. What then? Would you have checked the accuracy of that data? Critical thinking is not something you use "sometimes" or just "on some comments".

  • The EU initiative for Stop Killing Games has reached the goal of 1 million signatures!!

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  • To be clear... If you have already signed, thank you but do not sign again.

    (I know that's not what you wanted to say, I just want to make sure it's not misunderstood).

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  • I'm not sure.

    If I was him I suppose I would want to get revenge by getting to be their boss and firing them or training them until they change their behavior.

    I think the solution is pretty straightforward you have to get rid of the racist/corrupt cops it's not like a stern word will change people like Williams (the cop that kept on getting fired and reinstated).

    So I dont think he is forgiving anybody here. He is on a mission to eliminate the issue from the top. And when it comes to mafia like structures like in Boston the only person that can effectively deconstruct that is at the very top of the hierarchy.

    At least that's what I'm hoping for. Also I thought the person that elected him is known to be fighting against police brutality and racism.

  • PNG has been updated for the first time in 22 years — new spec supports HDR and animation

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  • As you can see it's irrelevant apparently. If it's AI generated it will be downvoted.

  • PNG has been updated for the first time in 22 years — new spec supports HDR and animation

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  • I'm probably gonna be massively downvoted for saying the forbidden word but I asked AI to do a summary with references of the forward and backward compatibility of PNG's new version:

    !

    Based on recent search results, the new PNG specification (Third Edition) and its reference library (libpng) maintain strong backward compatibility while introducing modern features. Here's a detailed compatibility analysis:

    🔄 1. Backward Compatibility (Viewing Old PNGs with New Lib)

    • Full Support: The new libpng (1.6.49+) and PNG Third Edition fully support legacy PNG files. Existing PNGs (conforming to the 2003/2004 spec) will render correctly without changes .
    • Implementation Stability: Libpng's API evolution (e.g., hiding png_struct/png_info internals since 1.5.0) ensures older apps using png_get_*/png_set_* functions remain compatible. Direct struct access, deprecated since 1.4.x, may break in libpng 2.0.x (C99-only) .
    • Security Enhancements: Critical vulnerabilities (e.g., CVE-2019-7317 in png_image_free()) were patched in libpng 1.6.37+, making the new lib safer for decoding old files .

    ⚠️ 2. Forward Compatibility (Viewing New PNGs with Old Lib)

    • Basic Support: Older libpng versions (pre-1.6.37) can decode new PNGs if they avoid new features. Core chunks like IHDR or IDAT remain unchanged .
    • New Feature Limitations:
      • HDR Imagery: Requires libpng 1.6.45+ and apps supporting the mDCv chunk. Older libs ignore HDR data, falling back to SDR, which may cause color inaccuracies .
      • APNG Animation: Officially standardized in PNG Third Edition. Older libs (e.g., <1.6) treat APNG as static images, showing only the first frame .
      • EXIF Metadata: New eXIf chunks are ignored by legacy decoders, losing metadata like GPS or copyright info .

    • Security Risks: Older libs (e.g., ≤1.6.36) contain unpatched vulnerabilities (e.g., CVE-2015-8126). Parsing malicious new PNGs could exploit these flaws .

    📊 Compatibility Summary

    🔧 3. Implementation and Industry Adoption

    • Broad Support: Major browsers (Chrome, Safari, Firefox), OSs (iOS, macOS), and tools (Photoshop, DaVinci Resolve) already support the new spec .
    • Progressive Enhancement: New features like HDR use optional chunks, ensuring graceful degradation in older software .
    • Future-Proofing: Work on PNG Fourth Edition (HDR/SDR interoperability) and Fifth Edition (better compression) is underway .

    💎 Conclusion

    • Upgrade Recommended: New libpng (1.6.49+) ensures security and full compatibility with legacy files.
    • Test Workflows: Verify critical tools handle new features (e.g., APNG animation in browsers).
    • Fallbacks for Old Systems: For environments stuck with outdated libs, convert new PNGs to legacy format (e.g., strip HDR/APNG) .

    For developers: Use png_get_valid(png_ptr, info_ptr, PNG_INFO_mDCv) to check HDR support and provide fallbacks .

    !<

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  • Forgiving or trying to fix a corruption problem from the top?

  • Stop Killing Games - EU Initiative 1 MILLION ACHIEVED! + More signatures needed

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  • I have signed the petition but wasn't ever asked for an ID.

    So in countries like mine (FR) how are they gonna check my signature?

  • Food.

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  • How are those surprlus "solving world hunger"?

    There is nothing really saying that in the wikipedia page. Just because a country has surplus at one point doesn't mean it will fill the belly of someone at the other side of the world.

    Sorry but this seems like a massive simplification.

  • 413524 Gang, rise up!

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  • 24135 would result in an incomplete star...

  • Insert Title

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  • Can't wait for the "Insert meme" entry on knowyourmeme.

  • "Y'all are pathetic": Dune: Awakening players are using sandworms to kill their rivals in PvE-only areas, proving once more that nowhere on Arrakis is safe

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  • Shouldn't be too difficult to fix for the devs. At least until the griefers invent a new strategy.

    The game is young though it's not like it's surprising or unusual that there is bug and exploits still active.

  • Which behaviour of your cat you hate most?

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  • My cat just puts all the litter at the very back of the litter box. Then pees right at the entrance of the litter box. Then puts her paws thoroughly in pee and starts a nice stroll all around my flat.

    I mean she is definitely smarter than other cats for certain stuffs (opening doors, drawers is easy for her) but she is really bad at using the litter box. And I have tried all types of litter and various amount of it but she almost always does that.

  • big catch

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  • Roger that.

    No dick pics with pavement as background.

  • Was surprised by these stats

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  • At the same time ?

    Challenge accepted.

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  • Also Andy Yen :

    https://x.com/andyyen/status/1864436449942110660

    I know it's quite irrelevant but I'm still very very cautious about proton since this comment. If at the head of the proton foundation you have a Trumpist it doesn't bod well for the future.

    CEO of proton think Trump of all things is what we need to combat the big tech. Trump, elected with a bunch of his big tech billionaires.

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  • What a bunch of cowards.

    They clearly are afraid of doing one too many fact checking and offending one of Trump's minions.

  • Rematch review

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  • I'm tempted to try it out as an avid Rocket League player.

    I'm just not sure there is something in Rematch that I cannot already get somehow in Rocket League.

  • It's sound logic

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  • So... did it work?

  • Dune game

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  • How grindy is the game?

    I have multiple friends that told me that Conan exile was quite grindy and that they are not convinced by Dune because of that.

    It's too bad because I think they would appreciate the game but are too concerned by the fact that it would take a lot of time to get good stuff.

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  • It was called the stone age for a reason...