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| -rw-r--r-- | Text TV BornHack/2026/pixelflut/closeup.webp | bin | 0 -> 156026 bytes | |||
| -rw-r--r-- | Text TV BornHack/2026/pixelflut/pixelflut.webp | bin | 0 -> 135240 bytes | |||
| -rw-r--r-- | Text TV BornHack/2026/web/error.webp | bin | 0 -> 32764 bytes | |||
| -rw-r--r-- | Text TV BornHack/2026/web/speakers_tent.webp | bin | 0 -> 120852 bytes | |||
| -rw-r--r-- | Text TV BornHack/index.md | 73 | ||||
| -rw-r--r-- | Text TV BornHack/pango_cairo/Anti aliased text.png (renamed from Text TV BornHack/Anti aliased text.png) | bin | 2489 -> 2489 bytes | |||
| -rw-r--r-- | Text TV BornHack/pango_cairo/Anti aliasing turned off.png (renamed from Text TV BornHack/Anti aliasing turned off.png) | bin | 1781 -> 1781 bytes |
7 files changed, 52 insertions, 21 deletions
diff --git a/Text TV BornHack/2026/pixelflut/closeup.webp b/Text TV BornHack/2026/pixelflut/closeup.webp Binary files differnew file mode 100644 index 0000000..806f10d --- /dev/null +++ b/Text TV BornHack/2026/pixelflut/closeup.webp diff --git a/Text TV BornHack/2026/pixelflut/pixelflut.webp b/Text TV BornHack/2026/pixelflut/pixelflut.webp Binary files differnew file mode 100644 index 0000000..49baa04 --- /dev/null +++ b/Text TV BornHack/2026/pixelflut/pixelflut.webp diff --git a/Text TV BornHack/2026/web/error.webp b/Text TV BornHack/2026/web/error.webp Binary files differnew file mode 100644 index 0000000..2a3aa3b --- /dev/null +++ b/Text TV BornHack/2026/web/error.webp diff --git a/Text TV BornHack/2026/web/speakers_tent.webp b/Text TV BornHack/2026/web/speakers_tent.webp Binary files differnew file mode 100644 index 0000000..4187bde --- /dev/null +++ b/Text TV BornHack/2026/web/speakers_tent.webp diff --git a/Text TV BornHack/index.md b/Text TV BornHack/index.md index 84b34eb..0631f06 100644 --- a/Text TV BornHack/index.md +++ b/Text TV BornHack/index.md @@ -1,47 +1,44 @@ --- -description: Website imitating teletext aka *Tekst-TV* featuring schedule +description: Screens showing the schedule at BornHack created: 2024-07-07 --- [TOC] -## --> [text-tv.bornhack.node5.net](https://text-tv.bornhack.node5.net/) <-- +Link to web version: [text-tv.bornhack.node5.net](https://text-tv.bornhack.node5.net/) + +## 2024 - -  -## Idea +BornHack 2024 featured an even cooler pixelflut screen, inspiring me to make something for it. -This years BornHack (2024) will feature an even cooler Pixelflut setup, which inspired me to make something for it. -An important goal was to have something with a low barrier of entry to interact with it. -My first idea involved a keyboard presented at the Pixelflut setup, -allowing one to type messages to be displayed on screen. -Then later i got the idea to make it Text TV themed, this works well with the nerdy culture, and allows me to add a -schedule, and get user interaction through a "news" section. +### Idea + +My initial aspiration was to make something with a low barrier of entry for people to interact with the pixelflut. +I got the idea to make a text-tv themed setup with a news section and a schedule. The news section was later scrapped, +honing in on the main focus displaying the schedule, which was nowhere to find physically at the event, only online. ### Mock up +  -### Inspiration +#### Inspiration <iframe src="https://www.dr.dk/cgi-bin/fttv1.exe/100" style="border:none;height:490px;width:320px" title="Tekst TV - dr.dk"></iframe> --- -## Renderer coding +### Pixelflut client -### Text rendering in C using pango & cairo +A fellow hacker sent me a project to get me started written in C with Pango/Cairo, which can render images and text rather easily, but it was anti-aliased, making it look horrible in the small format. -Based on a cairo pixel flut code sample from a fellow hacker, which i could expand to import and image, rather easily, -and render text, which worked, but it was anti aliased, making it look horible in the small format. - - + Top is gimp mock up text, bottom is pango cairo rendered text -### Turning off anti aliasing +#### Turning off anti aliasing This was annoying, because `cairo_set_antialias(cr, CAIRO_ANTIALIAS_NONE);` didn't work, it had to be done in pango context. @@ -125,7 +122,7 @@ Here's a code sample: Which renderes non-anti-aliased text - + Again, top is gimp mock up text, bottom is pango cairo rendered text @@ -133,4 +130,38 @@ bottom is pango cairo rendered text --- So 2024 Bornhack happened, sadly the pixel flut screen died, so i shifted from pixel flut to a website. -Which was featured at the bar in 2024 and in our village in 2025 + +## 2025 + + + +The web version was displayed in out village, and the pixel flut client was setup pretty late. +Setup was too hacky to easily deploy. + +## 2026 + +This time i come prepared, I've got time leading up to the event to do it right. +It's all about making it easy once you arrive at the event. +I've setup all the services with nix, allowing me to declare the setup. + +### Web + +The web client got an upgrade from refreshing the entire page to using JavaScript `fetch` as to not make the page flash. +Furthermore, should an error arrise it will be displayed on the top bar in red, and it will retain the last state, +allowing me to fix it, whilst remaining useful to the users. +The screen was up before the first event. + +The utility of it was presumably great, i saw lots of people check what events were comming up. + + + + +### Pixelflut + + + + +I had everything ready, i even had the pixelflut client self reported its IP on boot, allowing me to reach it. + +The client ran for about a week at about 900 Megabits/s that's 68 Tera**Bytes** of data 🫪 wowe +`(0.9 * 60 * 60 * 24 * 7 / 1000 / 8)` diff --git a/Text TV BornHack/Anti aliased text.png b/Text TV BornHack/pango_cairo/Anti aliased text.png Binary files differindex 739c551..739c551 100644 --- a/Text TV BornHack/Anti aliased text.png +++ b/Text TV BornHack/pango_cairo/Anti aliased text.png diff --git a/Text TV BornHack/Anti aliasing turned off.png b/Text TV BornHack/pango_cairo/Anti aliasing turned off.png Binary files differindex 628d80c..628d80c 100644 --- a/Text TV BornHack/Anti aliasing turned off.png +++ b/Text TV BornHack/pango_cairo/Anti aliasing turned off.png |
