remove redundant infos
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Vinzenz Schroeter 2025-02-16 18:24:05 +01:00
parent 335127b219
commit dcf8d12a8a
4 changed files with 6 additions and 48 deletions

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@ -5,9 +5,6 @@ Display" or "Airport Display".
This crate contains C# bindings for the [servicepoint](https://git.berlin.ccc.de/servicepoint/servicepoint) library based on [servicepoint-binding-uniffi](https://git.berlin.ccc.de/servicepoint/servicepoint-binding-uniffi). This crate contains C# bindings for the [servicepoint](https://git.berlin.ccc.de/servicepoint/servicepoint) library based on [servicepoint-binding-uniffi](https://git.berlin.ccc.de/servicepoint/servicepoint-binding-uniffi).
Also take a look at the main project [README](https://git.berlin.ccc.de/servicepoint/servicepoint/src/branch/main/README.md) for more
information.
F# is not tested. If there are usability or functionality problems, please open an issue. F# is not tested. If there are usability or functionality problems, please open an issue.
## Note on stability ## Note on stability
@ -82,3 +79,9 @@ Because of that, there is no NuGet package you can use directly.
Run `./generate-binding.sh` to regenerate the base library. Run `./generate-binding.sh` to regenerate the base library.
The generated source file is checked in. The generated source file is checked in.
The CI enforces that generated bindings do not change. The CI enforces that generated bindings do not change.
## Everything else
Look at the main project [README](https://git.berlin.ccc.de/servicepoint/servicepoint/src/branch/main/README.md) for
further information.

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# About the display
- Resolution: 352x160=56,320 pixels
- Pixels are grouped into 44x20=880 tiles (8x8=64 pixels each)
- Smallest addressable unit: row of pixels inside of a tile (8 pixels = 1 byte)
- The brightness can only be set per tile
- Screen content can be changed using a simple UDP protocol
- Between each row of tiles, there is a gap of around 4 pixels size. This gap changes the aspect ratio of the display.
### Binary format
A UDP package sent to the display has a header size of 10 bytes.
Each header value has a size of two bytes (unsigned 16 bit integer).
Depending on the command, there can be a payload following the header.
To change screen contents, these commands are the most relevant:
1. Clear screen
- command: `0x0002`
- (rest does not matter)
2. Send CP437 data: render specified text into rectangular region
- command: `0x0003`
- top left tile x
- top left tile y
- width in tiles
- height in tiles
- payload: (width in tiles * height in tiles) bytes
- 1 byte = 1 character
- each character is rendered into one tile (mono-spaced)
- characters are encoded using code page 437
3. Send bitmap window: set pixel states for a rectangular region
- command: `0x0013`
- top left tile x
- top left _pixel_ y
- width in tiles
- height in _pixels_
- payload: (width in tiles * height in pixels) bytes
- network byte order
- 1 bit = 1 pixel
There are other commands implemented as well, e.g. for changing the brightness.

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max_width = 80

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[package] [package]
name = "uniffi-bindgen-cs" name = "uniffi-bindgen-cs"
version = "0.13.1"
publish = false publish = false
edition = "2021" edition = "2021"
license = "GPL-3.0-or-later" license = "GPL-3.0-or-later"
#readme = "README.md"
keywords = ["cccb", "cccb-servicepoint", "uniffi"]
[dependencies.uniffi-bindgen-cs] [dependencies.uniffi-bindgen-cs]
git = "https://github.com/NordSecurity/uniffi-bindgen-cs" git = "https://github.com/NordSecurity/uniffi-bindgen-cs"