mirror of
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91 lines
3.6 KiB
Markdown
91 lines
3.6 KiB
Markdown
# ServicePoint
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In [CCCB](https://berlin.ccc.de/), there is a big pixel matrix hanging on the wall. It is called "Service Point
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Display" or "Airport Display".
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This crate contains bindings for multiple programming languages, enabling non-rust-developers to use the library.
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Also take a look at the main project [README](https://github.com/cccb/servicepoint/blob/main/README.md) for more
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information.
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## Note on stability
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This library is still in early development.
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You can absolutely use it, and it works, but expect minor breaking changes with every version bump.
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## Notes on differences to rust library
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- Performance will not be as good as the rust version:
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- most objects are reference counted.
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- objects with mutating methods will also have a MRSW lock
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- You will not get rust backtraces in release builds of the native code
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- Panic messages will work (PanicException)
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## Supported languages
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| Language | Support level | Notes |
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|-----------|---------------|-------------------------------------------------------------------------------------------------|
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| .NET (C#) | Full | see dedicated section |
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| Ruby | Working | LD_LIBRARY_PATH has to be set, see example project |
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| Python | Tested once | Required project file not included. The shared library will be loaded from the script location. |
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| Go | untested | |
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| Kotlin | untested | |
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| Swift | untested | |
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## Installation
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Including this repository as a submodule and building from source is the recommended way of using the library.
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```bash
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git submodule add https://github.com/cccb/servicepoint.git
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git commit -m "add servicepoint submodule"
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```
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Run `generate-bindings.sh` to regenerate all bindings. This will also build `libservicepoint.so` (or equivalent on your
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platform).
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For languages not fully supported, there will be no project file for the library, just the naked source file(s).
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If you successfully use a language, please open an issue or PR to add the missing ones.
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## .NET (C#)
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This is the best supported language.
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F# is not tested. If there are usability or functionality problems, please open an issue.
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Currently, the project file is hard-coded for Linux and will need tweaks for other platforms (e.g. `.dylib` instead of `.so`).
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You do not have to compile or copy the rust crate manually, as building `ServicePoint.csproj` also builds it.
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### Example
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```csharp
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using System.Threading;
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using ServicePoint;
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var connection = new Connection("127.0.0.1:2342");
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connection.Send(Command.Clear());
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connection.Send(Command.Brightness(5));
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var pixels = Bitmap.NewMaxSized();
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for (ulong offset = 0; offset < ulong.MaxValue; offset++)
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{
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pixels.Fill(false);
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for (ulong y = 0; y < pixels.Height(); y++)
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pixels.Set((y + offset) % pixels.Width(), y, true);
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connection.Send(Command.BitmapLinearWin(0, 0, pixels));
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Thread.Sleep(14);
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}
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```
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A full example including project files is available as part of this crate.
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### Why is there no NuGet-Package?
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NuGet packages are not a good way to distribute native
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binaries ([relevant issue](https://github.com/dotnet/sdk/issues/33845)).
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Because of that, there is no NuGet package you can use directly.
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