| --- Log opened Sun Feb 21 00:00:24 2016 |
| 02:43 | <~Vornicus> | man. path mesh in lua tables format: 16kB |
| 02:43 | <&McMartin> | Yikes |
| 02:50 | <~Vornicus> | to be fair fully half of that is field titles. 55 items, each with 3-7 references to other items, 3-6 numbers, and two booleans. |
| 03:16 | <&Derakon> | I'm reminded of one of our automated tests at work. |
| 03:16 | <&Derakon> | It loads a data file, verifies the contents, saves the file, then re-loads it and verifies it again. |
| 03:16 | <&Derakon> | (Testing load/save logic) |
| 03:16 | <&Derakon> | The data file is 41MB uncompressed, or 100kB compressed. |
| 03:26 | < [R]> | I'm guessing it's mostly text to have that kind of compression. |
| 03:29 | <~Vornicus> | Nah, that's Very Boring Images. |
| 03:30 | < [R]> | Derakon's thing? |
| 03:30 | <~Vornicus> | yeah. |
| 03:33 | <~Vornicus> | english text only crushes down about 80%. images with very little in them - I just made one that's 1024x1024 but the only thing in it is the bottom half is black and the top half is white -- would be 3MB in standard bmp, but it's under 3kB as a png. |
| 03:34 | <&McMartin> | Then there's XML. :( |
| 03:35 | < [R]> | HTML and SVG are also the same. |
| 03:35 | <~Vornicus> | those are, of course, also xml |
| 03:35 | < [R]> | HTML isn't. |
| 03:36 | <&McMartin> | SGML and XML have similar compression profiles, I would expect. |
| 03:36 | < [R]> | XML and HTML share an ancestor though. |
| 03:37 | <~Vornicus> | (I'm also not kidding with under 3kB: 2,930 bytes, as saved from paint.net) |
| 03:39 | <~Vornicus> | (paths.lua, zipped, is 1,593 bytes. Structured data of this sort - with field tags, etc - compresses very well, but still not as well as boring images) |
| 03:45 | <@macdjord> | Derakon: Bah. 41MB down to 100kB? I once compressed 4 GB of logfiles into a 1 MB archive! |
| 03:48 | | * Derakon readsup. |
| 03:48 | <&Derakon> | Yeah, those were TIFF images with some very large and repetitive metadata fields. |
| 03:49 | <&Derakon> | The actual images were 64x64 grayscale, with values varying sinusoidally, but they represent a vanishingly small portion of that 41MB. |
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| 04:56 | <&McMartin> | Success! https://hkn.eecs.berkeley.edu/~mcmartin/screenshots/FLEyesore.png |
| 04:58 | <~Vornicus> | If that is considered success |
| 04:58 | <&McMartin> | I do still need to test this on real hardware |
| 04:58 | <&McMartin> | But I am being extremely unkind to a VIC-II there. |
| 04:59 | <&McMartin> | (This is that "16 colors in one character" trick from a while back, scaled up to the entire screen, or as much of it as can be rendered. It turns out there's a region at the bottom that can't.) |
| 05:01 | | * McMartin walks over to the Commodore 128, pops the datacard out of its drive, hooks it into his laptop to transfer the programs over. HOW COOL IS THAT, SERIOUSLY. |
| 05:07 | | Derakon is now known as Derakon[AFK] |
| 05:09 | <&McMartin> | Yep, all the results check out on real hardware, including the wacky anomaly |
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| 06:03 | <~Vornicus> | I can't wait to read this article |
| 06:03 | <&McMartin> | I've already reworked it like three times, since I'm turning into the thing I hated back when I started doing this |
| 06:07 | <~Vornicus> | which is... some sort of demoscene magician, doing the old-school stuff in an old-school way and and not bringing in the new knowledge to show how it works? |
| 06:10 | <&McMartin> | More specifically, "assuming that everyone's totally internalized everything about the mechanics I'm exploiting" |
| 06:11 | <&McMartin> | I think the right way to go about this is to start with "let's do something fun" and not with "let's actually put the partial rescan trick to good use" |
| 06:11 | <~Vornicus> | Likely. |
| 06:13 | <&McMartin> | Then I'm thinking two articles: one for the single-character case, and then one where I expand that to the full screen. |
| 06:13 | <&McMartin> | ... this is really The Last Trick |
| 06:13 | <&McMartin> | Everything else is being clever with the tricks you have. |
| 06:17 | | * Vornicus args, fiddles with his data structure to make it a little less fraught to actually do things |
| 06:18 | <&McMartin> | Vornicus: Incidentally, the stack writeups are now updated through the present day |
| 06:19 | <&McMartin> | So, Axiom Verge and Ultima 1 |
| 06:22 | | * Vornicus then tries to figure out how to get the excel sheet to produce it that way. |
| 06:24 | | * jerith tries to figure out how to write the tests he wants to write in F#. |
| 06:24 | <&McMartin> | Oh, are you using F# for a full-scale project? |
| 06:24 | | * McMartin has never had the excuse, and has been curious about how it has evolved from its origins as a plaything of OCaml fans within MS. |
| 06:25 | <&jerith> | I'm playing with it because I want to play with Unity3D but I don't really want C# or their JS variant. |
| 06:26 | <&jerith> | I got as far as "follow a couple of blog posts to get some game objects drawn", then "set up a moderately sane dev environment", and now "write a maze generator so there's something to build a game around". |
| 06:26 | <&jerith> | It's not really a full-scale project yet. |
| 06:27 | <&jerith> | My experience with OCaml has left me able to write F# code pretty easily once I figure out what functions I want. |
| 06:27 | <&jerith> | It's also left me somewhat unsatisfied with the standard libraries. |
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| 08:20 | | * McMartin starts writing a new Bumbershoot article. |
| 08:20 | <&McMartin> | Tentative opening sentence: "Man, it has been, like, five months since we've made an old computer do something that it was never intended to be able to do." |
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| 10:57 | <&ToxicFrog> | McMartin: so, for future reference, the gazp7 is based on the Clevo W25AES chassis, which is also used in the Sager NP3260 and a few other things. |
| 10:57 | <&ToxicFrog> | This makes it a lot easier to search for. Unfortunately it looks like Clevo never released any firmware updates for it. |
| 10:59 | <&ToxicFrog> | Maybe I should just switch to syslinux or LILO~ |
| 11:08 | <&ToxicFrog> | Actually, the more I think about it the more appealing switching to syslinux is. |
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| 16:55 | < [R]> | Syslinux is god |
| 16:55 | < [R]> | Only issue I could see people having is lack of UEFI support. But that's coming. |
| 16:58 | < [R]> | It's almost as easy to install as lilo (IE: one command with a single argument) and easier to maintain that grub. Bonus points for sharing configuration format with isolinux and pxelinux (due to them being part of the same project). |
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| 17:18 | <&jerith> | Whee! I have my F# Unity3D maze generation thing working. |
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| 18:22 | <&ToxicFrog> | [R]: this system won't boot in UEFI mode or I'd dispense with bootloaders entirely and just use EFISTUB |
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| --- Log closed Mon Feb 22 00:00:40 2016 |