servicepoint/servicepoint-binding-c
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This commit is contained in:
Vinzenz Schroeter 2024-05-10 00:53:12 +02:00
commit 6b5fdca654
7 changed files with 112 additions and 105 deletions
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94
src/lib.rs
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@ -1,98 +1,18 @@
mod connection;
mod pixel_grid;
mod bit_vec;
mod packet;
mod command;
pub use crate::connection::*;
pub use crate::pixel_grid::*;
pub use crate::bit_vec::*;
pub use crate::connection::{Connection, ToPacket};
pub use crate::pixel_grid::{PixelGrid};
pub use crate::bit_vec::{BitVec};
pub use crate::packet::{Packet, Header, Payload};
pub use crate::command::{Command, Size, Origin, Window};
pub const TILE_SIZE: u16 = 8;
pub const TILE_WIDTH: u16 = 56;
pub const TILE_HEIGHT: u16 = 20;
pub const PIXEL_WIDTH: u16 = TILE_WIDTH * TILE_SIZE;
pub const PIXEL_HEIGHT: u16 = TILE_HEIGHT * TILE_SIZE;
pub const PIXEL_COUNT: usize = PIXEL_WIDTH as usize * PIXEL_HEIGHT as usize;
/// A window
#[derive(Debug)]
pub struct Window(pub Origin, pub Size);
/// An origin marks the top left position of the
/// data sent to the display.
/// A window
#[derive(Debug)]
pub struct Origin(pub u16, pub u16);
/// Size defines the width and height of a window
/// A window
#[derive(Debug)]
pub struct Size(pub u16, pub u16);
type Offset = u16;
type Brightness = u8;
type Packet = Vec<u8>;
#[derive(Debug)]
pub enum Command {
Clear,
HardReset,
FadeOut,
CharBrightness(Window, Vec<Brightness>),
Brightness(Brightness),
BitmapLinear(Offset, BitVec),
BitmapLinearAnd(Offset, BitVec),
BitmapLinearOr(Offset, BitVec),
BitmapLinearXor(Offset, BitVec),
Cp437Data(Window, Vec<u8>),
BitmapLinearWin(Window, PixelGrid),
}
fn offset_and_payload(command: u16, offset: Offset, payload: Vec<u8>) -> Packet {
let mut packet = vec!(0u8; 10 + payload.len());
packet[0..=1].copy_from_slice(&u16::to_be_bytes(command));
packet[2..=3].copy_from_slice(&u16::to_be_bytes(offset));
packet[4..=5].copy_from_slice(&u16::to_be_bytes(payload.len() as u16));
packet[6..=7].copy_from_slice(&[0x00, 0x00]); // subcommand 0 => no compression
packet[8..=9].copy_from_slice(&[0x00, 0x00]); // reserved
packet[10..].copy_from_slice(&*payload);
packet
}
fn window_and_payload(command: u16, window: Window, payload: Vec<u8>) -> Packet {
let Window(Origin(x, y), Size(w, h)) = window;
let mut packet = vec!(0u8; 10 + payload.len());
packet[0..=1].copy_from_slice(&u16::to_be_bytes(command));
packet[2..=3].copy_from_slice(&u16::to_be_bytes(x));
packet[4..=5].copy_from_slice(&u16::to_be_bytes(y));
packet[6..=7].copy_from_slice(&u16::to_be_bytes(w));
packet[8..=9].copy_from_slice(&u16::to_be_bytes(h));
packet[10..].copy_from_slice(&*payload);
packet
}
impl From<Command> for Packet {
fn from(value: Command) -> Self {
match value {
Command::Clear => vec!(0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00),
Command::CharBrightness(window, payload) => window_and_payload(0x0005, window, payload),
Command::Brightness(brightness) => vec!(0x00, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, brightness),
Command::HardReset => vec!(0x00, 0x0b, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00),
Command::FadeOut => vec!(0x00, 0x0d, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00),
Command::BitmapLinear(offset, payload) => offset_and_payload(0x0012, offset, payload.into()),
Command::BitmapLinearWin(window, payload) => window_and_payload(0x0013, window, payload.into()),
Command::BitmapLinearAnd(offset, payload) => offset_and_payload(0x0014, offset, payload.into()),
Command::BitmapLinearOr(offset, payload) => offset_and_payload(0x0015, offset, payload.into()),
Command::BitmapLinearXor(offset, payload) => offset_and_payload(0x0016, offset, payload.into()),
Command::Cp437Data(window, payload) => window_and_payload(0x0003, window, payload),
}
}
}