This commit is contained in:
Vinzenz Schroeter 2024-11-10 14:01:53 +01:00
commit 89e391f846
8 changed files with 642 additions and 0 deletions

1
.envrc Normal file
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use flake

3
.gitignore vendored Normal file
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/target
.direnv
.idea

323
Cargo.lock generated Normal file
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# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
version = 3
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"windows_x86_64_gnu",
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dependencies = [
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Cargo.toml Normal file
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[package]
name = "servicepoint-ttwhy"
version = "0.1.0"
edition = "2021"
[dependencies]
servicepoint = { version = "0.10.0", features = ["cp437"] }
clap = { version = "4.5.20", features = ["derive"] }

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README.md Normal file
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# servicepoint-ttwhy
Pipe text to the servicepoint-display.
For more information, see (here)[https://github.com/cccb/servicepoint].
```shell
dmesg --follow > servicepoint-tty
```
## Running
With nix: `nix run github:kaesaecracker/servicepoint-ttwhy`
Without nix: checkout the repository and execute `cargo run`

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flake.lock Normal file
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{
"nodes": {
"naersk": {
"inputs": {
"nixpkgs": [
"nixpkgs"
]
},
"locked": {
"lastModified": 1721727458,
"narHash": "sha256-r/xppY958gmZ4oTfLiHN0ZGuQ+RSTijDblVgVLFi1mw=",
"owner": "nix-community",
"repo": "naersk",
"rev": "3fb418eaf352498f6b6c30592e3beb63df42ef11",
"type": "github"
},
"original": {
"owner": "nix-community",
"repo": "naersk",
"type": "github"
}
},
"naersk_2": {
"inputs": {
"nixpkgs": [
"servicepoint",
"nixpkgs"
]
},
"locked": {
"lastModified": 1721727458,
"narHash": "sha256-r/xppY958gmZ4oTfLiHN0ZGuQ+RSTijDblVgVLFi1mw=",
"owner": "nix-community",
"repo": "naersk",
"rev": "3fb418eaf352498f6b6c30592e3beb63df42ef11",
"type": "github"
},
"original": {
"owner": "nix-community",
"repo": "naersk",
"type": "github"
}
},
"nixpkgs": {
"locked": {
"lastModified": 1730963269,
"narHash": "sha256-rz30HrFYCHiWEBCKHMffHbMdWJ35hEkcRVU0h7ms3x0=",
"owner": "nixos",
"repo": "nixpkgs",
"rev": "83fb6c028368e465cd19bb127b86f971a5e41ebc",
"type": "github"
},
"original": {
"owner": "nixos",
"ref": "nixos-24.05",
"repo": "nixpkgs",
"type": "github"
}
},
"root": {
"inputs": {
"naersk": "naersk",
"nixpkgs": "nixpkgs",
"servicepoint": "servicepoint"
}
},
"servicepoint": {
"inputs": {
"naersk": "naersk_2",
"nixpkgs": [
"nixpkgs"
]
},
"locked": {
"lastModified": 1731233440,
"narHash": "sha256-xg6UxGKR+8W0eDctyskbWPO7xZ8rjxWQGso+InllIew=",
"owner": "cccb",
"repo": "servicepoint",
"rev": "c7dc935984b76bff55221f89f8b9b806e9cd2e46",
"type": "github"
},
"original": {
"owner": "cccb",
"repo": "servicepoint",
"type": "github"
}
}
},
"root": "root",
"version": 7
}

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flake.nix Normal file
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{
description = "Flake for servicepoint-ttwhy";
inputs = {
nixpkgs.url = "github:nixos/nixpkgs/nixos-24.05";
naersk = {
url = "github:nix-community/naersk";
inputs.nixpkgs.follows = "nixpkgs";
};
servicepoint = {
url = "github:cccb/servicepoint";
inputs.nixpkgs.follows = "nixpkgs";
};
};
outputs =
inputs@{
self,
nixpkgs,
naersk,
servicepoint,
}:
let
lib = nixpkgs.lib;
supported-systems = [
"x86_64-linux"
"aarch64-linux"
"aarch64-darwin"
"x86_64-darwin"
];
forAllSystems = lib.genAttrs supported-systems;
make-rust-toolchain-core =
pkgs:
pkgs.symlinkJoin {
name = "rust-toolchain-core";
paths = with pkgs; [
rustc
cargo
rustPlatform.rustcSrc
];
};
in
rec {
packages = forAllSystems (
system:
let
pkgs = nixpkgs.legacyPackages."${system}";
rust-toolchain-core = make-rust-toolchain-core pkgs;
naersk' = pkgs.callPackage naersk {
cargo = rust-toolchain-core;
rustc = rust-toolchain-core;
};
in
rec {
servicepoint-ttwhy = naersk'.buildPackage rec {
src = ./.;
nativeBuildInputs = with pkgs; [
pkg-config
makeWrapper
];
strictDeps = true;
buildInputs = with pkgs; [ lzma ];
};
default = servicepoint-ttwhy;
}
);
legacyPackages = packages;
devShells = forAllSystems (
system:
let
pkgs = nixpkgs.legacyPackages."${system}";
rust-toolchain = pkgs.symlinkJoin {
name = "rust-toolchain";
paths = with pkgs; [
(make-rust-toolchain-core pkgs)
rustfmt
clippy
cargo-expand
];
};
in
{
default = pkgs.mkShell rec {
inputsFrom = [ servicepoint.packages.${system}.servicepoint ];
packages = [ rust-toolchain ];
LD_LIBRARY_PATH = "${pkgs.lib.makeLibraryPath (builtins.concatMap (d: d.buildInputs) inputsFrom)}";
RUST_SRC_PATH = "${pkgs.rust.packages.stable.rustPlatform.rustLibSrc}";
};
}
);
formatter = forAllSystems (system: nixpkgs.legacyPackages."${system}".nixfmt-rfc-style);
};
}

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src/main.rs Normal file
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use clap::Parser;
use servicepoint::cp437::char_to_cp437;
use servicepoint::{
CharGrid, Command, Connection, Cp437Grid, DataRef, Grid, Origin, FRAME_PACING, TILE_HEIGHT,
TILE_WIDTH,
};
use std::io::Read;
use std::thread::sleep;
#[derive(Parser, Debug)]
struct Args {
#[arg(
short,
long,
default_value = "localhost:2342",
help = "Address of the display"
)]
destination: String,
}
struct App {
connection: Connection,
mirror: CharGrid,
x: usize,
y: usize,
}
impl App {
fn new(connection: Connection) -> Self {
Self {
connection,
mirror: CharGrid::new(TILE_WIDTH, TILE_HEIGHT),
x: 0,
y: 0,
}
}
fn run(&mut self) {
for byte in std::io::stdin().bytes() {
let byte = match byte {
Err(err) => {
panic!("could not read from stdin: {}", err)
}
Ok(val) => val,
};
let char = byte as char;
self.handle_char(char);
}
}
fn shift_rows(&mut self) {
let data = self.mirror.data_ref_mut();
data.rotate_left(TILE_WIDTH);
data.last_chunk_mut()
.map(move |row: &mut [char; TILE_WIDTH]| row.fill(' '));
}
fn handle_char(&mut self, char: char) {
match char {
'\n' => self.handle_newline(),
char => {
if self.x < self.mirror.width() {
self.mirror.set(self.x, self.y, char);
let grid = Cp437Grid::load(1, 1, &[char_to_cp437(char)]);
self.connection
.send(Command::Cp437Data(Origin::new(self.x, self.y), grid))
.unwrap();
sleep(FRAME_PACING);
}
self.x += 1;
}
}
}
fn handle_newline(&mut self) {
self.x = 0;
if self.y + 1 == self.mirror.height() {
self.shift_rows();
self.send_mirror();
} else {
self.y += 1;
}
}
fn send_mirror(&self) {
self.connection
.send(Command::Cp437Data(
Origin::ZERO,
Cp437Grid::from(&self.mirror),
))
.unwrap();
sleep(FRAME_PACING);
}
}
fn main() {
let args = Args::parse();
let connection = Connection::open(&args.destination).unwrap();
connection.send(Command::Clear).unwrap();
App::new(connection).run()
}