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This commit is contained in:
Vinzenz Schroeter 2024-05-28 21:55:03 +02:00
commit 69d4cff0bf
34 changed files with 1338 additions and 203 deletions
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1
.envrc Normal file
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@ -0,0 +1 @@
use nix

6
Cargo.lock generated
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@ -540,7 +540,7 @@ dependencies = [
[[package]]
name = "servicepoint"
version = "0.5.0"
version = "0.5.1"
dependencies = [
"bzip2",
"clap 4.5.4",
@ -553,7 +553,7 @@ dependencies = [
[[package]]
name = "servicepoint_binding_c"
version = "0.5.0"
version = "0.5.1"
dependencies = [
"cbindgen",
"servicepoint",
@ -561,7 +561,7 @@ dependencies = [
[[package]]
name = "servicepoint_binding_cs"
version = "0.5.0"
version = "0.5.1"
dependencies = [
"csbindgen",
"servicepoint",

5
Cargo.toml
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@ -8,4 +8,7 @@ members = [
]
[workspace.package]
version = "0.5.0"
version = "0.5.1"
[workspace.lints.rust]
missing-docs = "warn"

5
crates/servicepoint/Cargo.toml
View file

@ -30,4 +30,7 @@ all_compressions = ["compression_zlib", "compression_bzip2", "compression_lzma",
[dev-dependencies]
# for examples
clap = { version = "4.5", features = ["derive"] }
rand = "0.8"
rand = "0.8"
[lints]
workspace = true

4
crates/servicepoint/README.md
View file

@ -18,7 +18,7 @@ fn main() {
.expect("connection failed");
// clear screen content
connection.send(servicepoint::Command::Clear.into())
connection.send(servicepoint::Command::Clear)
.expect("send failed");
}
```
@ -46,7 +46,7 @@ In the likely case you only need one of them, you can include that one specifica
```toml
[dependencies]
servicepoint = { version = "0.5.0", default-features = false, features = ["compression-bz"] }
servicepoint = { version = "0.5.1", default-features = false, features = ["compression-bz"] }
```
## Everything else

2
crates/servicepoint/examples/announce.rs
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@ -1,3 +1,5 @@
//! An example for how to send text to the display.
use clap::Parser;
use servicepoint::{ByteGrid, Command, Connection, Grid, Origin};

2
crates/servicepoint/examples/game_of_life.rs
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@ -1,3 +1,5 @@
//! A simple game of life implementation to show how to render graphics to the display.
use std::thread;
use clap::Parser;

2
crates/servicepoint/examples/moving_line.rs
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@ -1,3 +1,5 @@
//! A simple example for how to send pixel data to the display.
use std::thread;
use clap::Parser;

3
crates/servicepoint/examples/random_brightness.rs
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@ -1,3 +1,6 @@
//! A simple example for how to set brightnesses for tiles on the screen.
//! Continuously changes the tiles in a random window to random brightnesses.
use std::time::Duration;
use clap::Parser;

1
crates/servicepoint/examples/wiping_clear.rs
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@ -1,3 +1,4 @@
//! An example on how to modify the image on screen without knowing the current content.
use std::thread;
use std::time::Duration;

18
crates/servicepoint/src/bit_vec.rs
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@ -1,6 +1,6 @@
use crate::DataRef;
/// A vector of bits
/// A fixed-size vector of bits
#[derive(Debug, Clone, PartialEq)]
pub struct BitVec {
size: usize,
@ -8,17 +8,17 @@ pub struct BitVec {
}
impl BitVec {
/// Create a new bit vector.
/// Create a new `BitVec`.
///
/// # Arguments
///
/// * `size`: size in bits. Must be dividable by 8.
/// * `size`: size in bits.
///
/// returns: bit vector with all bits set to false.
/// returns: `BitVec` with all bits set to false.
///
/// # Panics
///
/// When size is not a multiple of 8.
/// When `size` is not divisible by 8.
#[must_use]
pub fn new(size: usize) -> BitVec {
assert_eq!(size % 8, 0);
@ -36,6 +36,10 @@ impl BitVec {
/// * `value`: the value to set the bit to
///
/// returns: old value of the bit
///
/// # Panics
///
/// When accessing `index` out of bounds.
pub fn set(&mut self, index: usize, value: bool) -> bool {
let (byte_index, bit_mask) = self.get_indexes(index);
@ -58,6 +62,10 @@ impl BitVec {
/// * `index`: the bit index to read
///
/// returns: value of the bit
///
/// # Panics
///
/// When accessing `index` out of bounds.
#[must_use]
pub fn get(&self, index: usize) -> bool {
let (byte_index, bit_mask) = self.get_indexes(index);

21
crates/servicepoint/src/byte_grid.rs
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@ -52,6 +52,18 @@ impl Grid<u8> for ByteGrid {
}
}
/// Sets the value of the cell at the specified position in the `ByteGrid.
///
/// # Arguments
///
/// * `x` and `y`: position of the cell
/// * `value`: the value to write to the cell
///
/// returns: old value of the cell.
///
/// # Panics
///
/// When accessing `x` or `y` out of bounds.
fn set(&mut self, x: usize, y: usize, value: u8) -> u8 {
self.check_indexes(x, y);
let pos = &mut self.data[x + y * self.width];
@ -60,6 +72,15 @@ impl Grid<u8> for ByteGrid {
old_val
}
/// Gets the current value at the specified position.
///
/// # Arguments
///
/// * `x` and `y`: position of the cell to read
///
/// # Panics
///
/// When accessing `x` or `y` out of bounds.
fn get(&self, x: usize, y: usize) -> u8 {
self.check_indexes(x, y);
self.data[x + y * self.width]

5
crates/servicepoint/src/compression_code.rs
View file

@ -2,14 +2,19 @@
#[repr(u16)]
#[derive(Debug, Clone, Copy, PartialEq)]
pub enum CompressionCode {
/// no compression
Uncompressed = 0x0,
#[cfg(feature = "compression_zlib")]
/// compress using flate2 with zlib header
Zlib = 0x677a,
#[cfg(feature = "compression_bzip2")]
/// compress using bzip2
Bzip2 = 0x627a,
#[cfg(feature = "compression_lzma")]
/// compress using lzma
Lzma = 0x6c7a,
#[cfg(feature = "compression_zstd")]
/// compress using Zstandard
Zstd = 0x7a73,
}

9
crates/servicepoint/src/grid.rs
View file

@ -1,5 +1,14 @@
/// A two-dimensional grid of `T`
pub trait Grid<T> {
#[must_use]
/// Creates a new Grid with the specified dimensions.
///
/// # Arguments
///
/// - width: size in x-direction
/// - height: size in y-direction
///
/// returns: Grid with all cells initialized to default state.
fn new(width: usize, height: usize) -> Self;
/// Sets the value at the specified position

7
crates/servicepoint/src/lib.rs
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@ -1,3 +1,5 @@
//! Abstractions for the UDP protocol of the CCCB servicepoint display.
use std::time::Duration;
pub use crate::bit_vec::BitVec;
@ -42,3 +44,8 @@ pub const PIXEL_COUNT: usize = PIXEL_WIDTH * PIXEL_HEIGHT;
/// Actual hardware limit is around 28-29ms/frame. Rounded up for less dropped packets.
pub const FRAME_PACING: Duration = Duration::from_millis(30);
// include README.md in doctest
#[doc = include_str!("../README.md")]
#[cfg(doctest)]
pub struct ReadmeDocTests;

27
crates/servicepoint/src/pixel_grid.rs
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@ -75,15 +75,42 @@ impl Grid<bool> for PixelGrid {
}
}
/// Sets the value of the specified position in the `PixelGrid`.
///
/// # Arguments
///
/// * `x` and `y`: position of the cell
/// * `value`: the value to write to the cell
///
/// returns: old value of the cell
///
/// # Panics
///
/// When accessing `x` or `y` out of bounds.
fn set(&mut self, x: usize, y: usize, value: bool) -> bool {
self.check_indexes(x, y);
self.bit_vec.set(x + y * self.width, value)
}
/// Gets the current value at the specified position.
///
/// # Arguments
///
/// * `x` and `y`: position of the cell to read
///
/// # Panics
///
/// When accessing `x` or `y` out of bounds.
fn get(&self, x: usize, y: usize) -> bool {
self.bit_vec.get(x + y * self.width)
}
/// Sets the state of all pixels in the `PixelGrid`.
///
/// # Arguments
///
/// * `this`: instance to write to
/// * `value`: the value to set all pixels to
fn fill(&mut self, value: bool) {
self.bit_vec.fill(value);
}

9
crates/servicepoint_binding_c/Cargo.toml
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@ -1,11 +1,11 @@
[package]
name = "servicepoint_binding_c"
version.workspace = true
publish = false
publish = true
edition = "2021"
license = "GPL-3.0-or-later"
description = "C bindings for the servicepoint crate."
homepage = "https://docs.rs/crate/servicepoint"
homepage = "https://docs.rs/crate/servicepoint_binding_c"
repository = "https://github.com/cccb/servicepoint"
readme = "README.md"
links = "servicepoint"
@ -17,6 +17,9 @@ crate-type = ["staticlib", "cdylib", "rlib"]
cbindgen = "0.26.0"
[dependencies.servicepoint]
version = "0.5.0"
version = "0.5.1"
path = "../servicepoint"
features = ["all_compressions"]
[lints]
workspace = true

5
crates/servicepoint_binding_c/README.md
View file

@ -5,8 +5,9 @@
[![docs.rs](https://img.shields.io/docsrs/servicepoint_binding_c)](https://docs.rs/servicepoint/latest/servicepoint/)
[![GPLv3 licensed](https://img.shields.io/crates/l/servicepoint_binding_c)](../../LICENSE)
In [CCCB](https://berlin.ccc.de/), there is a big pixel matrix hanging on the wall. It is called "Service Point
Display" or "Airport Display".
In [CCCB](https://berlin.ccc.de/), there is a big pixel matrix hanging on the wall.
It is called "Service Point Display" or "Airport Display".
This crate contains C bindings for the `servicepoint` library, enabling users to parse, encode and send packets to this display via UDP.
## Examples

6
crates/servicepoint_binding_c/build.rs
View file

@ -1,3 +1,9 @@
//! Build script generating the header for the `servicepoint` C library.
//!
//! When the environment variable `SERVICEPOINT_HEADER_OUT` is set, the header is copied there from
//! the out directory. This can be used to use the build script as a command line tool from other
//! build tools.
use std::{env, fs::copy};
use cbindgen::{generate_with_config, Config};

2
crates/servicepoint_binding_c/examples/lang_c/Makefile
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@ -1,7 +1,7 @@
CC := gcc
THIS_DIR := $(dir $(realpath $(lastword $(MAKEFILE_LIST))))
REPO_ROOT := $(THIS_DIR)/../..
REPO_ROOT := $(THIS_DIR)/../../../..
build: out/lang_c

640
crates/servicepoint_binding_c/examples/lang_c/include/servicepoint.h
View file

@ -44,10 +44,25 @@ enum sp_CompressionCode
: uint16_t
#endif // __cplusplus
{
/**
* no compression
*/
Uncompressed = 0,
/**
* compress using flate2 with zlib header
*/
Zlib = 26490,
/**
* compress using bzip2
*/
Bzip2 = 25210,
/**
* compress using lzma
*/
Lzma = 27770,
/**
* compress using Zstandard
*/
Zstd = 31347,
};
#ifndef __cplusplus
@ -55,7 +70,7 @@ typedef uint16_t sp_CompressionCode;
#endif // __cplusplus
/**
* A vector of bits
* A fixed-size vector of bits
*/
typedef struct sp_BitVec sp_BitVec;
@ -87,7 +102,13 @@ typedef struct sp_PixelGrid sp_PixelGrid;
/**
* Represents a span of memory (`&mut [u8]` ) as a struct usable by C code.
*
* Usage of this type is inherently unsafe.
* # Safety
*
* The caller has to make sure that:
*
* - accesses to the memory pointed to with `start` is never accessed outside `length`
* - the lifetime of the `CByteSlice` does not outlive the memory it points to, as described in
* the function returning this type.
*/
typedef struct sp_CByteSlice {
/**
@ -116,51 +137,150 @@ extern "C" {
/**
* Clones a `BitVec`.
* The returned instance has to be freed with `bit_vec_dealloc`.
*
* # Safety
*
* The caller has to make sure that:
*
* - `this` points to a valid `BitVec`
* - `this` is not written to concurrently
* - the returned instance is freed in some way, either by using a consuming function or
* by explicitly calling `sp_bit_vec_dealloc`.
*/
struct sp_BitVec *sp_bit_vec_clone(const struct sp_BitVec *this_);
/**
* Deallocates a `BitVec`.
*
* Note: do not call this if the grid has been consumed in another way, e.g. to create a command.
* # Safety
*
* The caller has to make sure that:
*
* - `this` points to a valid `BitVec`
* - `this` is not used concurrently or after this call
* - `this` was not passed to another consuming function, e.g. to create a `Command`
*/
void sp_bit_vec_dealloc(struct sp_BitVec *this_);
/**
* Sets the value of all bits in the `BitVec`.
*
* # Arguments
*
* * `value`: the value to set all bits to
*
* # Safety
*
* The caller has to make sure that:
*
* - `this` points to a valid `BitVec`
* - `this` is not written to or read from concurrently
*/
void sp_bit_vec_fill(struct sp_BitVec *this_, bool value);
/**
* Gets the value of a bit from the `BitVec`.
*
* # Arguments
*
* * `this`: instance to read from
* * `index`: the bit index to read
*
* returns: value of the bit
*
* # Panics
*
* When accessing `index` out of bounds.
*
* # Safety
*
* The caller has to make sure that:
*
* - `this` points to a valid `BitVec`
* - `this` is not written to concurrently
*/
bool sp_bit_vec_get(const struct sp_BitVec *this_, size_t index);
/**
* Returns true if length is 0.
*
* # Safety
*
* The caller has to make sure that:
*
* - `this` points to a valid `BitVec`
*/
bool sp_bit_vec_is_empty(const struct sp_BitVec *this_);
/**
* Gets the length of the `BitVec` in bits.
*
* # Safety
*
* The caller has to make sure that:
*
* - `this` points to a valid `BitVec`
*/
size_t sp_bit_vec_len(const struct sp_BitVec *this_);
/**
* Loads a `BitVec` from the provided data.
* The returned instance has to be freed with `bit_vec_dealloc`.
* Interpret the data as a series of bits and load then into a new `BitVec` instance.
*
* # Safety
*
* The caller has to make sure that:
*
* - `data` points to a valid memory location of at least `data_length`
* bytes in size.
* - the returned instance is freed in some way, either by using a consuming function or
* by explicitly calling `sp_bit_vec_dealloc`.
*/
struct sp_BitVec *sp_bit_vec_load(const uint8_t *data, size_t data_length);
struct sp_BitVec *sp_bit_vec_load(const uint8_t *data,
size_t data_length);
/**
* Creates a new `BitVec` instance.
* The returned instance has to be freed with `bit_vec_dealloc`.
*
* # Arguments
*
* * `size`: size in bits.
*
* returns: `BitVec` with all bits set to false.
*
* # Panics
*
* When `size` is not divisible by 8.
*
* # Safety
*
* The caller has to make sure that:
*
* - the returned instance is freed in some way, either by using a consuming function or
* by explicitly calling `sp_bit_vec_dealloc`.
*/
struct sp_BitVec *sp_bit_vec_new(size_t size);
/**
* Sets the value of a bit in the `BitVec`.
*
* # Arguments
*
* * `this`: instance to write to
* * `index`: the bit index to edit
* * `value`: the value to set the bit to
*
* returns: old value of the bit
*
* # Panics
*
* When accessing `index` out of bounds.
*
* # Safety
*
* The caller has to make sure that:
*
* - `this` points to a valid `BitVec`
* - `this` is not written to or read from concurrently
*/
bool sp_bit_vec_set(struct sp_BitVec *this_, size_t index, bool value);
@ -169,45 +289,109 @@ bool sp_bit_vec_set(struct sp_BitVec *this_, size_t index, bool value);
*
* ## Safety
*
* The caller has to make sure to never access the returned memory after the `BitVec`
* instance has been consumed or manually deallocated.
* The caller has to make sure that:
*
* Reading and writing concurrently to either the original instance or the returned data will
* result in undefined behavior.
* - `this` points to a valid `BitVec`
* - the returned memory range is never accessed after the passed `BitVec` has been freed
* - the returned memory range is never accessed concurrently, either via the `BitVec` or directly
*/
struct sp_CByteSlice sp_bit_vec_unsafe_data_ref(struct sp_BitVec *this_);
/**
* Clones a `ByteGrid`.
* The returned instance has to be freed with `byte_grid_dealloc`.
*
* # Safety
*
* The caller has to make sure that:
*
* - `this` points to a valid `ByteGrid`
* - `this` is not written to concurrently
* - the returned instance is freed in some way, either by using a consuming function or
* by explicitly calling `sp_byte_grid_dealloc`.
*/
struct sp_ByteGrid *sp_byte_grid_clone(const struct sp_ByteGrid *this_);
/**
* Deallocates a `ByteGrid`.
*
* Note: do not call this if the grid has been consumed in another way, e.g. to create a command.
* # Safety
*
* The caller has to make sure that:
*
* - `this` points to a valid `ByteGrid`
* - `this` is not used concurrently or after this call
* - `this` was not passed to another consuming function, e.g. to create a `Command`
*/
void sp_byte_grid_dealloc(struct sp_ByteGrid *this_);
/**
* Fills the whole `ByteGrid` with the specified value
* Sets the value of all cells in the `ByteGrid`.
*
* # Arguments
*
* * `this`: instance to write to
* * `value`: the value to set all cells to
*
* # Safety
*
* The caller has to make sure that:
*
* - `this` points to a valid `ByteGrid`
* - `this` is not written to or read from concurrently
*/
void sp_byte_grid_fill(struct sp_ByteGrid *this_, uint8_t value);
/**
* Get the current value at the specified position
* Gets the current value at the specified position.
*
* # Arguments
*
* * `this`: instance to read from
* * `x` and `y`: position of the cell to read
*
* # Panics
*
* When accessing `x` or `y` out of bounds.
*
* # Safety
*
* The caller has to make sure that:
*
* - `this` points to a valid `ByteGrid`
* - `this` is not written to concurrently
*/
uint8_t sp_byte_grid_get(const struct sp_ByteGrid *this_, size_t x, size_t y);
/**
* Gets the height in pixels of the `ByteGrid` instance.
* Gets the height of the `ByteGrid` instance.
*
* # Arguments
*
* * `this`: instance to read from
*
* # Safety
*
* The caller has to make sure that:
*
* - `this` points to a valid `ByteGrid`
*/
size_t sp_byte_grid_height(const struct sp_ByteGrid *this_);
/**
* Loads a `ByteGrid` with the specified dimensions from the provided data.
* The returned instance has to be freed with `byte_grid_dealloc`.
*
* # Panics
*
* When the provided `data_length` is not sufficient for the `height` and `width`
*
* # Safety
*
* The caller has to make sure that:
*
* - `data` points to a valid memory location of at least `data_length`
* bytes in size.
* - the returned instance is freed in some way, either by using a consuming function or
* by explicitly calling `sp_byte_grid_dealloc`.
*/
struct sp_ByteGrid *sp_byte_grid_load(size_t width,
size_t height,
@ -215,13 +399,41 @@ struct sp_ByteGrid *sp_byte_grid_load(size_t width,
size_t data_length);
/**
* Creates a new `ByteGrid` instance.
* The returned instance has to be freed with `byte_grid_dealloc`.
* Creates a new `ByteGrid` with the specified dimensions.
*
* returns: `ByteGrid` initialized to 0.
*
* # Safety
*
* The caller has to make sure that:
*
* - the returned instance is freed in some way, either by using a consuming function or
* by explicitly calling `sp_byte_grid_dealloc`.
*/
struct sp_ByteGrid *sp_byte_grid_new(size_t width, size_t height);
struct sp_ByteGrid *sp_byte_grid_new(size_t width,
size_t height);
/**
* Sets the current value at the specified position
* Sets the value of the specified position in the `ByteGrid`.
*
* # Arguments
*
* * `this`: instance to write to
* * `x` and `y`: position of the cell
* * `value`: the value to write to the cell
*
* returns: old value of the cell
*
* # Panics
*
* When accessing `x` or `y` out of bounds.
*
* # Safety
*
* The caller has to make sure that:
*
* - `this` points to a valid `BitVec`
* - `this` is not written to or read from concurrently
*/
void sp_byte_grid_set(struct sp_ByteGrid *this_,
size_t x,
@ -233,22 +445,42 @@ void sp_byte_grid_set(struct sp_ByteGrid *this_,
*
* ## Safety
*
* The caller has to make sure to never access the returned memory after the `ByteGrid`
* instance has been consumed or manually deallocated.
* The caller has to make sure that:
*
* Reading and writing concurrently to either the original instance or the returned data will
* result in undefined behavior.
* - `this` points to a valid `ByteGrid`
* - the returned memory range is never accessed after the passed `ByteGrid` has been freed
* - the returned memory range is never accessed concurrently, either via the `ByteGrid` or directly
*/
struct sp_CByteSlice sp_byte_grid_unsafe_data_ref(struct sp_ByteGrid *this_);
/**
* Gets the width in pixels of the `ByteGrid` instance.
* Gets the width of the `ByteGrid` instance.
*
* # Arguments
*
* * `this`: instance to read from
*
* # Safety
*
* The caller has to make sure that:
*
* - `this` points to a valid `ByteGrid`
*/
size_t sp_byte_grid_width(const struct sp_ByteGrid *this_);
/**
* Allocates a new `Command::BitmapLinear` instance.
* The passed `BitVec` gets deallocated in the process.
* The passed `BitVec` gets consumed.
*
* # Safety
*
* The caller has to make sure that:
*
* - `bit_vec` points to a valid instance of `BitVec`
* - `bit_vec` is not used concurrently or after this call
* - `compression` matches one of the allowed enum values
* - the returned `Command` instance is freed in some way, either by using a consuming function or
* by explicitly calling `sp_command_dealloc`.
*/
struct sp_Command *sp_command_bitmap_linear(sp_Offset offset,
struct sp_BitVec *bit_vec,
@ -256,7 +488,17 @@ struct sp_Command *sp_command_bitmap_linear(sp_Offset offset,
/**
* Allocates a new `Command::BitmapLinearAnd` instance.
* The passed `BitVec` gets deallocated in the process.
* The passed `BitVec` gets consumed.
*
* # Safety
*
* The caller has to make sure that:
*
* - `bit_vec` points to a valid instance of `BitVec`
* - `bit_vec` is not used concurrently or after this call
* - `compression` matches one of the allowed enum values
* - the returned `Command` instance is freed in some way, either by using a consuming function or
* by explicitly calling `sp_command_dealloc`.
*/
struct sp_Command *sp_command_bitmap_linear_and(sp_Offset offset,
struct sp_BitVec *bit_vec,
@ -264,7 +506,17 @@ struct sp_Command *sp_command_bitmap_linear_and(sp_Offset offset,
/**
* Allocates a new `Command::BitmapLinearOr` instance.
* The passed `BitVec` gets deallocated in the process.
* The passed `BitVec` gets consumed.
*
* # Safety
*
* The caller has to make sure that:
*
* - `bit_vec` points to a valid instance of `BitVec`
* - `bit_vec` is not used concurrently or after this call
* - `compression` matches one of the allowed enum values
* - the returned `Command` instance is freed in some way, either by using a consuming function or
* by explicitly calling `sp_command_dealloc`.
*/
struct sp_Command *sp_command_bitmap_linear_or(sp_Offset offset,
struct sp_BitVec *bit_vec,
@ -272,95 +524,213 @@ struct sp_Command *sp_command_bitmap_linear_or(sp_Offset offset,
/**
* Allocates a new `Command::BitmapLinearWin` instance.
* The passed `PixelGrid` gets deallocated in the process.
* The passed `PixelGrid` gets consumed.
*
* # Safety
*
* The caller has to make sure that:
*
* - `pixel_grid` points to a valid instance of `PixelGrid`
* - `pixel_grid` is not used concurrently or after this call
* - `compression` matches one of the allowed enum values
* - the returned `Command` instance is freed in some way, either by using a consuming function or
* by explicitly calling `sp_command_dealloc`.
*/
struct sp_Command *sp_command_bitmap_linear_win(size_t x,
size_t y,
struct sp_PixelGrid *byte_grid,
struct sp_PixelGrid *pixel_grid,
sp_CompressionCode compression_code);
/**
* Allocates a new `Command::BitmapLinearXor` instance.
* The passed `BitVec` gets deallocated in the process.
* The passed `BitVec` gets consumed.
*
* # Safety
*
* The caller has to make sure that:
*
* - `bit_vec` points to a valid instance of `BitVec`
* - `bit_vec` is not used concurrently or after this call
* - `compression` matches one of the allowed enum values
* - the returned `Command` instance is freed in some way, either by using a consuming function or
* by explicitly calling `sp_command_dealloc`.
*/
struct sp_Command *sp_command_bitmap_linear_xor(sp_Offset offset,
struct sp_BitVec *bit_vec,
sp_CompressionCode compression);
/**
* Allocates a new `Command::Brightness` instance
* Allocates a new `Command::Brightness` instance.
*
* # Safety
*
* The caller has to make sure that:
*
* - the returned `Command` instance is freed in some way, either by using a consuming function or
* by explicitly calling `sp_command_dealloc`.
*/
struct sp_Command *sp_command_brightness(sp_Brightness brightness);
/**
* Allocates a new `Command::CharBrightness` instance.
* The passed `ByteGrid` gets deallocated in the process.
* The passed `ByteGrid` gets consumed.
*
* # Safety
*
* The caller has to make sure that:
*
* - `byte_grid` points to a valid instance of `ByteGrid`
* - `byte_grid` is not used concurrently or after this call
* - the returned `Command` instance is freed in some way, either by using a consuming function or
* by explicitly calling `sp_command_dealloc`.
*/
struct sp_Command *sp_command_char_brightness(size_t x,
size_t y,
struct sp_ByteGrid *byte_grid);
/**
* Allocates a new `Command::Clear` instance
* Allocates a new `Command::Clear` instance.
*
* # Safety
*
* The caller has to make sure that:
*
* - the returned `Command` instance is freed in some way, either by using a consuming function or
* by explicitly calling `sp_command_dealloc`.
*/
struct sp_Command *sp_command_clear(void);
/**
* Clones a `Command` instance
* Clones a `Command` instance.
*
* # Safety
*
* The caller has to make sure that:
*
* - `this` points to a valid instance of `Command`
* - `this` is not written to concurrently
* - the returned `Command` instance is freed in some way, either by using a consuming function or
* by explicitly calling `sp_command_dealloc`.
*/
struct sp_Command *sp_command_clone(const struct sp_Command *original);
/**
* Allocates a new `Command::Cp437Data` instance.
* The passed `ByteGrid` gets deallocated in the process.
* The passed `ByteGrid` gets consumed.
*
* # Safety
*
* The caller has to make sure that:
*
* - `byte_grid` points to a valid instance of `ByteGrid`
* - `byte_grid` is not used concurrently or after this call
* - the returned `Command` instance is freed in some way, either by using a consuming function or
* by explicitly calling `sp_command_dealloc`.
*/
struct sp_Command *sp_command_cp437_data(size_t x,
size_t y,
struct sp_ByteGrid *byte_grid);
/**
* Deallocates a `Command`. Note that connection_send does this implicitly, so you only need
* to do this if you use the library for parsing commands.
* Deallocates a `Command`.
*
* # Safety
*
* The caller has to make sure that:
*
* - `this` points to a valid `Command`
* - `this` is not used concurrently or after this call
* - `this` was not passed to another consuming function, e.g. to create a `Packet`
*/
void sp_command_dealloc(struct sp_Command *ptr);
/**
* Allocates a new `Command::FadeOut` instance
* Allocates a new `Command::FadeOut` instance.
*
* # Safety
*
* The caller has to make sure that:
*
* - the returned `Command` instance is freed in some way, either by using a consuming function or
* by explicitly calling `sp_command_dealloc`.
*/
struct sp_Command *sp_command_fade_out(void);
/**
* Allocates a new `Command::HardReset` instance
* Allocates a new `Command::HardReset` instance.
*
* # Safety
*
* The caller has to make sure that:
*
* - the returned `Command` instance is freed in some way, either by using a consuming function or
* by explicitly calling `sp_command_dealloc`.
*/
struct sp_Command *sp_command_hard_reset(void);
/**
* Tries to turn a `Packet` into a `Command`. The packet is gets deallocated in the process.
* Tries to turn a `Packet` into a `Command`. The packet is deallocated in the process.
*
* Returns: pointer to command or NULL
* Returns: pointer to new `Command` instance or NULL
*
* # Safety
*
* The caller has to make sure that:
*
* - `packet` points to a valid instance of `Packet`
* - `packet` is not used concurrently or after this call
* - the result is checked for NULL
* - the returned `Command` instance is freed in some way, either by using a consuming function or
* by explicitly calling `sp_command_dealloc`.
*/
struct sp_Command *sp_command_try_from_packet(struct sp_Packet *packet);
/**
* Closes and deallocates a connection instance
* Closes and deallocates a `Connection`.
*
* # Safety
*
* The caller has to make sure that:
*
* - `this` points to a valid `Connection`
* - `this` is not used concurrently or after this call
*/
void sp_connection_dealloc(struct sp_Connection *ptr);
/**
* Creates a new instance of Connection.
* The returned instance has to be deallocated with `connection_dealloc`.
* Creates a new instance of `Connection`.
*
* returns: NULL if connection fails or connected instance
* returns: NULL if connection fails, or connected instance
*
* Panics: bad string encoding
* # Panics
*
* Bad string encoding
*
* # Safety
*
* The caller has to make sure that:
*
* - the returned instance is freed in some way, either by using a consuming function or
* by explicitly calling `sp_connection_dealloc`.
*/
struct sp_Connection *sp_connection_open(const char *host);
/**
* Sends the command instance. The instance is consumed / destroyed and cannot be used after this call.
* Sends a `Packet` to the display using the `Connection`.
* The passed `Packet` gets consumed.
*
* returns: true in case of success
*
* # Safety
*
* The caller has to make sure that:
*
* - `connection` points to a valid instance of `Connection`
* - `packet` points to a valid instance of `Packet`
* - `packet` is not used concurrently or after this call
*/
bool sp_connection_send(const struct sp_Connection *connection,
struct sp_Packet *command_ptr);
struct sp_Packet *packet);
/**
* Deallocates a `Packet`.
@ -370,7 +740,17 @@ bool sp_connection_send(const struct sp_Connection *connection,
void sp_packet_dealloc(struct sp_Packet *this_);
/**
* Turns a `Command` into a `Packet`. The command gets deallocated in the process.
* Turns a `Command` into a `Packet`.
* The `Command` gets consumed.
*
* # Safety
*
* The caller has to make sure that:
*
* - `command` points to a valid instance of `Command`
* - `command` is not used concurrently or after this call
* - the returned `Packet` instance is freed in some way, either by using a consuming function or
* by explicitly calling `sp_packet_dealloc`.
*/
struct sp_Packet *sp_packet_from_command(struct sp_Command *command);
@ -378,40 +758,121 @@ struct sp_Packet *sp_packet_from_command(struct sp_Command *command);
* Tries to load a `Packet` from the passed array with the specified length.
*
* returns: NULL in case of an error, pointer to the allocated packet otherwise
*
* # Safety
*
* The caller has to make sure that:
*
* - `data` points to a valid memory region of at least `length` bytes
* - `data` is not written to concurrently
* - the returned `Packet` instance is freed in some way, either by using a consuming function or
* by explicitly calling `sp_packet_dealloc`.
*/
struct sp_Packet *sp_packet_try_load(const uint8_t *data, size_t length);
struct sp_Packet *sp_packet_try_load(const uint8_t *data,
size_t length);
/**
* Clones a `PixelGrid`.
* The returned instance has to be freed with `pixel_grid_dealloc`.
*
* # Safety
*
* The caller has to make sure that:
*
* - `this` points to a valid `PixelGrid`
* - `this` is not written to concurrently
* - the returned instance is freed in some way, either by using a consuming function or
* by explicitly calling `sp_pixel_grid_dealloc`.
*/
struct sp_PixelGrid *sp_pixel_grid_clone(const struct sp_PixelGrid *this_);
/**
* Deallocates a `PixelGrid`.
*
* Note: do not call this if the grid has been consumed in another way, e.g. to create a command.
* # Safety
*
* The caller has to make sure that:
*
* - `this` points to a valid `PixelGrid`
* - `this` is not used concurrently or after this call
* - `this` was not passed to another consuming function, e.g. to create a `Command`
*/
void sp_pixel_grid_dealloc(struct sp_PixelGrid *this_);
/**
* Fills the whole `PixelGrid` with the specified value
* Sets the state of all pixels in the `PixelGrid`.
*
* # Arguments
*
* * `this`: instance to write to
* * `value`: the value to set all pixels to
*
* # Safety
*
* The caller has to make sure that:
*
* - `this` points to a valid `PixelGrid`
* - `this` is not written to or read from concurrently
*/
void sp_pixel_grid_fill(struct sp_PixelGrid *this_, bool value);
/**
* Get the current value at the specified position
* Gets the current value at the specified position in the `PixelGrid`.
*
* # Arguments
*
* * `this`: instance to read from
* * `x` and `y`: position of the cell to read
*
* # Panics
*
* When accessing `x` or `y` out of bounds.
*
* # Safety
*
* The caller has to make sure that:
*
* - `this` points to a valid `PixelGrid`
* - `this` is not written to concurrently
*/
bool sp_pixel_grid_get(const struct sp_PixelGrid *this_, size_t x, size_t y);
/**
* Gets the height in pixels of the `PixelGrid` instance.
*
* # Arguments
*
* * `this`: instance to read from
*
* # Safety
*
* The caller has to make sure that:
*
* - `this` points to a valid `PixelGrid`
*/
size_t sp_pixel_grid_height(const struct sp_PixelGrid *this_);
/**
* Loads a `PixelGrid` with the specified dimensions from the provided data.
* The returned instance has to be freed with `pixel_grid_dealloc`.
*
* # Arguments
*
* * `width`: size in pixels in x-direction
* * `height`: size in pixels in y-direction
*
* returns: `PixelGrid` that contains a copy of the provided data
*
* # Panics
*
* - when the dimensions and data size do not match exactly.
* - when the width is not dividable by 8
*
* # Safety
*
* The caller has to make sure that:
*
* - `data` points to a valid memory location of at least `data_length` bytes in size.
* - the returned instance is freed in some way, either by using a consuming function or
* by explicitly calling `sp_pixel_grid_dealloc`.
*/
struct sp_PixelGrid *sp_pixel_grid_load(size_t width,
size_t height,
@ -419,13 +880,50 @@ struct sp_PixelGrid *sp_pixel_grid_load(size_t width,
size_t data_length);
/**
* Creates a new `PixelGrid` instance.
* The returned instance has to be freed with `pixel_grid_dealloc`.
* Creates a new `PixelGrid` with the specified dimensions.
*
* # Arguments
*
* * `width`: size in pixels in x-direction
* * `height`: size in pixels in y-direction
*
* returns: `PixelGrid` initialized to all pixels off
*
* # Panics
*
* - when the width is not dividable by 8
*
* # Safety
*
* The caller has to make sure that:
*
* - the returned instance is freed in some way, either by using a consuming function or
* by explicitly calling `sp_pixel_grid_dealloc`.
*/
struct sp_PixelGrid *sp_pixel_grid_new(size_t width, size_t height);
struct sp_PixelGrid *sp_pixel_grid_new(size_t width,
size_t height);
/**
* Sets the current value at the specified position
* Sets the value of the specified position in the `PixelGrid`.
*
* # Arguments
*
* * `this`: instance to write to
* * `x` and `y`: position of the cell
* * `value`: the value to write to the cell
*
* returns: old value of the cell
*
* # Panics
*
* When accessing `x` or `y` out of bounds.
*
* # Safety
*
* The caller has to make sure that:
*
* - `this` points to a valid `PixelGrid`
* - `this` is not written to or read from concurrently
*/
void sp_pixel_grid_set(struct sp_PixelGrid *this_,
size_t x,
@ -437,16 +935,26 @@ void sp_pixel_grid_set(struct sp_PixelGrid *this_,
*
* ## Safety
*
* The caller has to make sure to never access the returned memory after the `PixelGrid`
* instance has been consumed or manually deallocated.
* The caller has to make sure that:
*
* Reading and writing concurrently to either the original instance or the returned data will
* result in undefined behavior.
* - `this` points to a valid `PixelGrid`
* - the returned memory range is never accessed after the passed `PixelGrid` has been freed
* - the returned memory range is never accessed concurrently, either via the `PixelGrid` or directly
*/
struct sp_CByteSlice sp_pixel_grid_unsafe_data_ref(struct sp_PixelGrid *this_);
/**
* Gets the width in pixels of the `PixelGrid` instance.
*
* # Arguments
*
* * `this`: instance to read from
*
* # Safety
*
* The caller has to make sure that:
*
* - `this` points to a valid `PixelGrid`
*/
size_t sp_pixel_grid_width(const struct sp_PixelGrid *this_);

116
crates/servicepoint_binding_c/src/bit_vec.rs
View file

@ -4,14 +4,38 @@ use servicepoint::DataRef;
use crate::c_slice::CByteSlice;
/// Creates a new `BitVec` instance.
/// The returned instance has to be freed with `bit_vec_dealloc`.
///
/// # Arguments
///
/// * `size`: size in bits.
///
/// returns: `BitVec` with all bits set to false.
///
/// # Panics
///
/// When `size` is not divisible by 8.
///
/// # Safety
///
/// The caller has to make sure that:
///
/// - the returned instance is freed in some way, either by using a consuming function or
/// by explicitly calling `sp_bit_vec_dealloc`.
#[no_mangle]
pub unsafe extern "C" fn sp_bit_vec_new(size: usize) -> *mut BitVec {
Box::into_raw(Box::new(BitVec::new(size)))
}
/// Loads a `BitVec` from the provided data.
/// The returned instance has to be freed with `bit_vec_dealloc`.
/// Interpret the data as a series of bits and load then into a new `BitVec` instance.
///
/// # Safety
///
/// The caller has to make sure that:
///
/// - `data` points to a valid memory location of at least `data_length`
/// bytes in size.
/// - the returned instance is freed in some way, either by using a consuming function or
/// by explicitly calling `sp_bit_vec_dealloc`.
#[no_mangle]
pub unsafe extern "C" fn sp_bit_vec_load(
data: *const u8,
@ -22,7 +46,15 @@ pub unsafe extern "C" fn sp_bit_vec_load(
}
/// Clones a `BitVec`.
/// The returned instance has to be freed with `bit_vec_dealloc`.
///
/// # Safety
///
/// The caller has to make sure that:
///
/// - `this` points to a valid `BitVec`
/// - `this` is not written to concurrently
/// - the returned instance is freed in some way, either by using a consuming function or
/// by explicitly calling `sp_bit_vec_dealloc`.
#[no_mangle]
pub unsafe extern "C" fn sp_bit_vec_clone(this: *const BitVec) -> *mut BitVec {
Box::into_raw(Box::new((*this).clone()))
@ -30,13 +62,37 @@ pub unsafe extern "C" fn sp_bit_vec_clone(this: *const BitVec) -> *mut BitVec {
/// Deallocates a `BitVec`.
///
/// Note: do not call this if the grid has been consumed in another way, e.g. to create a command.
/// # Safety
///
/// The caller has to make sure that:
///
/// - `this` points to a valid `BitVec`
/// - `this` is not used concurrently or after this call
/// - `this` was not passed to another consuming function, e.g. to create a `Command`
#[no_mangle]
pub unsafe extern "C" fn sp_bit_vec_dealloc(this: *mut BitVec) {
_ = Box::from_raw(this);
}
/// Gets the value of a bit from the `BitVec`.
///
/// # Arguments
///
/// * `this`: instance to read from
/// * `index`: the bit index to read
///
/// returns: value of the bit
///
/// # Panics
///
/// When accessing `index` out of bounds.
///
/// # Safety
///
/// The caller has to make sure that:
///
/// - `this` points to a valid `BitVec`
/// - `this` is not written to concurrently
#[no_mangle]
pub unsafe extern "C" fn sp_bit_vec_get(
this: *const BitVec,
@ -46,6 +102,25 @@ pub unsafe extern "C" fn sp_bit_vec_get(
}
/// Sets the value of a bit in the `BitVec`.
///
/// # Arguments
///
/// * `this`: instance to write to
/// * `index`: the bit index to edit
/// * `value`: the value to set the bit to
///
/// returns: old value of the bit
///
/// # Panics
///
/// When accessing `index` out of bounds.
///
/// # Safety
///
/// The caller has to make sure that:
///
/// - `this` points to a valid `BitVec`
/// - `this` is not written to or read from concurrently
#[no_mangle]
pub unsafe extern "C" fn sp_bit_vec_set(
this: *mut BitVec,
@ -56,18 +131,41 @@ pub unsafe extern "C" fn sp_bit_vec_set(
}
/// Sets the value of all bits in the `BitVec`.
///
/// # Arguments
///
/// * `value`: the value to set all bits to
///
/// # Safety
///
/// The caller has to make sure that:
///
/// - `this` points to a valid `BitVec`
/// - `this` is not written to or read from concurrently
#[no_mangle]
pub unsafe extern "C" fn sp_bit_vec_fill(this: *mut BitVec, value: bool) {
(*this).fill(value)
}
/// Gets the length of the `BitVec` in bits.
///
/// # Safety
///
/// The caller has to make sure that:
///
/// - `this` points to a valid `BitVec`
#[no_mangle]
pub unsafe extern "C" fn sp_bit_vec_len(this: *const BitVec) -> usize {
(*this).len()
}
/// Returns true if length is 0.
///
/// # Safety
///
/// The caller has to make sure that:
///
/// - `this` points to a valid `BitVec`
#[no_mangle]
pub unsafe extern "C" fn sp_bit_vec_is_empty(this: *const BitVec) -> bool {
(*this).is_empty()
@ -77,11 +175,11 @@ pub unsafe extern "C" fn sp_bit_vec_is_empty(this: *const BitVec) -> bool {
///
/// ## Safety
///
/// The caller has to make sure to never access the returned memory after the `BitVec`
/// instance has been consumed or manually deallocated.
/// The caller has to make sure that:
///
/// Reading and writing concurrently to either the original instance or the returned data will
/// result in undefined behavior.
/// - `this` points to a valid `BitVec`
/// - the returned memory range is never accessed after the passed `BitVec` has been freed
/// - the returned memory range is never accessed concurrently, either via the `BitVec` or directly
#[no_mangle]
pub unsafe extern "C" fn sp_bit_vec_unsafe_data_ref(
this: *mut BitVec,

129
crates/servicepoint_binding_c/src/byte_grid.rs
View file

@ -3,8 +3,16 @@ use servicepoint::{DataRef, Grid};
use crate::c_slice::CByteSlice;
/// Creates a new `ByteGrid` instance.
/// The returned instance has to be freed with `byte_grid_dealloc`.
/// Creates a new `ByteGrid` with the specified dimensions.
///
/// returns: `ByteGrid` initialized to 0.
///
/// # Safety
///
/// The caller has to make sure that:
///
/// - the returned instance is freed in some way, either by using a consuming function or
/// by explicitly calling `sp_byte_grid_dealloc`.
#[no_mangle]
pub unsafe extern "C" fn sp_byte_grid_new(
width: usize,
@ -14,7 +22,19 @@ pub unsafe extern "C" fn sp_byte_grid_new(
}
/// Loads a `ByteGrid` with the specified dimensions from the provided data.
/// The returned instance has to be freed with `byte_grid_dealloc`.
///
/// # Panics
///
/// When the provided `data_length` is not sufficient for the `height` and `width`
///
/// # Safety
///
/// The caller has to make sure that:
///
/// - `data` points to a valid memory location of at least `data_length`
/// bytes in size.
/// - the returned instance is freed in some way, either by using a consuming function or
/// by explicitly calling `sp_byte_grid_dealloc`.
#[no_mangle]
pub unsafe extern "C" fn sp_byte_grid_load(
width: usize,
@ -27,7 +47,15 @@ pub unsafe extern "C" fn sp_byte_grid_load(
}
/// Clones a `ByteGrid`.
/// The returned instance has to be freed with `byte_grid_dealloc`.
///
/// # Safety
///
/// The caller has to make sure that:
///
/// - `this` points to a valid `ByteGrid`
/// - `this` is not written to concurrently
/// - the returned instance is freed in some way, either by using a consuming function or
/// by explicitly calling `sp_byte_grid_dealloc`.
#[no_mangle]
pub unsafe extern "C" fn sp_byte_grid_clone(
this: *const ByteGrid,
@ -37,13 +65,35 @@ pub unsafe extern "C" fn sp_byte_grid_clone(
/// Deallocates a `ByteGrid`.
///
/// Note: do not call this if the grid has been consumed in another way, e.g. to create a command.
/// # Safety
///
/// The caller has to make sure that:
///
/// - `this` points to a valid `ByteGrid`
/// - `this` is not used concurrently or after this call
/// - `this` was not passed to another consuming function, e.g. to create a `Command`
#[no_mangle]
pub unsafe extern "C" fn sp_byte_grid_dealloc(this: *mut ByteGrid) {
_ = Box::from_raw(this);
}
/// Get the current value at the specified position
/// Gets the current value at the specified position.
///
/// # Arguments
///
/// * `this`: instance to read from
/// * `x` and `y`: position of the cell to read
///
/// # Panics
///
/// When accessing `x` or `y` out of bounds.
///
/// # Safety
///
/// The caller has to make sure that:
///
/// - `this` points to a valid `ByteGrid`
/// - `this` is not written to concurrently
#[no_mangle]
pub unsafe extern "C" fn sp_byte_grid_get(
this: *const ByteGrid,
@ -53,7 +103,26 @@ pub unsafe extern "C" fn sp_byte_grid_get(
(*this).get(x, y)
}
/// Sets the current value at the specified position
/// Sets the value of the specified position in the `ByteGrid`.
///
/// # Arguments
///
/// * `this`: instance to write to
/// * `x` and `y`: position of the cell
/// * `value`: the value to write to the cell
///
/// returns: old value of the cell
///
/// # Panics
///
/// When accessing `x` or `y` out of bounds.
///
/// # Safety
///
/// The caller has to make sure that:
///
/// - `this` points to a valid `BitVec`
/// - `this` is not written to or read from concurrently
#[no_mangle]
pub unsafe extern "C" fn sp_byte_grid_set(
this: *mut ByteGrid,
@ -64,19 +133,51 @@ pub unsafe extern "C" fn sp_byte_grid_set(
(*this).set(x, y, value);
}
/// Fills the whole `ByteGrid` with the specified value
/// Sets the value of all cells in the `ByteGrid`.
///
/// # Arguments
///
/// * `this`: instance to write to
/// * `value`: the value to set all cells to
///
/// # Safety
///
/// The caller has to make sure that:
///
/// - `this` points to a valid `ByteGrid`
/// - `this` is not written to or read from concurrently
#[no_mangle]
pub unsafe extern "C" fn sp_byte_grid_fill(this: *mut ByteGrid, value: u8) {
(*this).fill(value);
}
/// Gets the width in pixels of the `ByteGrid` instance.
/// Gets the width of the `ByteGrid` instance.
///
/// # Arguments
///
/// * `this`: instance to read from
///
/// # Safety
///
/// The caller has to make sure that:
///
/// - `this` points to a valid `ByteGrid`
#[no_mangle]
pub unsafe extern "C" fn sp_byte_grid_width(this: *const ByteGrid) -> usize {
(*this).width()
}
/// Gets the height in pixels of the `ByteGrid` instance.
/// Gets the height of the `ByteGrid` instance.
///
/// # Arguments
///
/// * `this`: instance to read from
///
/// # Safety
///
/// The caller has to make sure that:
///
/// - `this` points to a valid `ByteGrid`
#[no_mangle]
pub unsafe extern "C" fn sp_byte_grid_height(this: *const ByteGrid) -> usize {
(*this).height()
@ -86,11 +187,11 @@ pub unsafe extern "C" fn sp_byte_grid_height(this: *const ByteGrid) -> usize {
///
/// ## Safety
///
/// The caller has to make sure to never access the returned memory after the `ByteGrid`
/// instance has been consumed or manually deallocated.
/// The caller has to make sure that:
///
/// Reading and writing concurrently to either the original instance or the returned data will
/// result in undefined behavior.
/// - `this` points to a valid `ByteGrid`
/// - the returned memory range is never accessed after the passed `ByteGrid` has been freed
/// - the returned memory range is never accessed concurrently, either via the `ByteGrid` or directly
#[no_mangle]
pub unsafe extern "C" fn sp_byte_grid_unsafe_data_ref(
this: *mut ByteGrid,

8
crates/servicepoint_binding_c/src/c_slice.rs
View file

@ -1,7 +1,13 @@
#[repr(C)]
/// Represents a span of memory (`&mut [u8]` ) as a struct usable by C code.
///
/// Usage of this type is inherently unsafe.
/// # Safety
///
/// The caller has to make sure that:
///
/// - accesses to the memory pointed to with `start` is never accessed outside `length`
/// - the lifetime of the `CByteSlice` does not outlive the memory it points to, as described in
/// the function returning this type.
pub struct CByteSlice {
/// The start address of the memory
pub start: *mut u8,

158
crates/servicepoint_binding_c/src/command.rs
View file

@ -5,9 +5,19 @@ use servicepoint::{
};
pub use servicepoint::{Brightness, Command, Offset};
/// Tries to turn a `Packet` into a `Command`. The packet is gets deallocated in the process.
/// Tries to turn a `Packet` into a `Command`. The packet is deallocated in the process.
///
/// Returns: pointer to command or NULL
/// Returns: pointer to new `Command` instance or NULL
///
/// # Safety
///
/// The caller has to make sure that:
///
/// - `packet` points to a valid instance of `Packet`
/// - `packet` is not used concurrently or after this call
/// - the result is checked for NULL
/// - the returned `Command` instance is freed in some way, either by using a consuming function or
/// by explicitly calling `sp_command_dealloc`.
#[no_mangle]
pub unsafe extern "C" fn sp_command_try_from_packet(
packet: *mut Packet,
@ -19,7 +29,16 @@ pub unsafe extern "C" fn sp_command_try_from_packet(
}
}
/// Clones a `Command` instance
/// Clones a `Command` instance.
///
/// # Safety
///
/// The caller has to make sure that:
///
/// - `this` points to a valid instance of `Command`
/// - `this` is not written to concurrently
/// - the returned `Command` instance is freed in some way, either by using a consuming function or
/// by explicitly calling `sp_command_dealloc`.
#[no_mangle]
pub unsafe extern "C" fn sp_command_clone(
original: *const Command,
@ -27,25 +46,53 @@ pub unsafe extern "C" fn sp_command_clone(
Box::into_raw(Box::new((*original).clone()))
}
/// Allocates a new `Command::Clear` instance
/// Allocates a new `Command::Clear` instance.
///
/// # Safety
///
/// The caller has to make sure that:
///
/// - the returned `Command` instance is freed in some way, either by using a consuming function or
/// by explicitly calling `sp_command_dealloc`.
#[no_mangle]
pub unsafe extern "C" fn sp_command_clear() -> *mut Command {
Box::into_raw(Box::new(Command::Clear))
}
/// Allocates a new `Command::HardReset` instance
/// Allocates a new `Command::HardReset` instance.
///
/// # Safety
///
/// The caller has to make sure that:
///
/// - the returned `Command` instance is freed in some way, either by using a consuming function or
/// by explicitly calling `sp_command_dealloc`.
#[no_mangle]
pub unsafe extern "C" fn sp_command_hard_reset() -> *mut Command {
Box::into_raw(Box::new(Command::HardReset))
}
/// Allocates a new `Command::FadeOut` instance
/// Allocates a new `Command::FadeOut` instance.
///
/// # Safety
///
/// The caller has to make sure that:
///
/// - the returned `Command` instance is freed in some way, either by using a consuming function or
/// by explicitly calling `sp_command_dealloc`.
#[no_mangle]
pub unsafe extern "C" fn sp_command_fade_out() -> *mut Command {
Box::into_raw(Box::new(Command::FadeOut))
}
/// Allocates a new `Command::Brightness` instance
/// Allocates a new `Command::Brightness` instance.
///
/// # Safety
///
/// The caller has to make sure that:
///
/// - the returned `Command` instance is freed in some way, either by using a consuming function or
/// by explicitly calling `sp_command_dealloc`.
#[no_mangle]
pub unsafe extern "C" fn sp_command_brightness(
brightness: Brightness,
@ -54,7 +101,16 @@ pub unsafe extern "C" fn sp_command_brightness(
}
/// Allocates a new `Command::CharBrightness` instance.
/// The passed `ByteGrid` gets deallocated in the process.
/// The passed `ByteGrid` gets consumed.
///
/// # Safety
///
/// The caller has to make sure that:
///
/// - `byte_grid` points to a valid instance of `ByteGrid`
/// - `byte_grid` is not used concurrently or after this call
/// - the returned `Command` instance is freed in some way, either by using a consuming function or
/// by explicitly calling `sp_command_dealloc`.
#[no_mangle]
pub unsafe extern "C" fn sp_command_char_brightness(
x: usize,
@ -66,7 +122,17 @@ pub unsafe extern "C" fn sp_command_char_brightness(
}
/// Allocates a new `Command::BitmapLinear` instance.
/// The passed `BitVec` gets deallocated in the process.
/// The passed `BitVec` gets consumed.
///
/// # Safety
///
/// The caller has to make sure that:
///
/// - `bit_vec` points to a valid instance of `BitVec`
/// - `bit_vec` is not used concurrently or after this call
/// - `compression` matches one of the allowed enum values
/// - the returned `Command` instance is freed in some way, either by using a consuming function or
/// by explicitly calling `sp_command_dealloc`.
#[no_mangle]
pub unsafe extern "C" fn sp_command_bitmap_linear(
offset: Offset,
@ -82,7 +148,17 @@ pub unsafe extern "C" fn sp_command_bitmap_linear(
}
/// Allocates a new `Command::BitmapLinearAnd` instance.
/// The passed `BitVec` gets deallocated in the process.
/// The passed `BitVec` gets consumed.
///
/// # Safety
///
/// The caller has to make sure that:
///
/// - `bit_vec` points to a valid instance of `BitVec`
/// - `bit_vec` is not used concurrently or after this call
/// - `compression` matches one of the allowed enum values
/// - the returned `Command` instance is freed in some way, either by using a consuming function or
/// by explicitly calling `sp_command_dealloc`.
#[no_mangle]
pub unsafe extern "C" fn sp_command_bitmap_linear_and(
offset: Offset,
@ -98,7 +174,17 @@ pub unsafe extern "C" fn sp_command_bitmap_linear_and(
}
/// Allocates a new `Command::BitmapLinearOr` instance.
/// The passed `BitVec` gets deallocated in the process.
/// The passed `BitVec` gets consumed.
///
/// # Safety
///
/// The caller has to make sure that:
///
/// - `bit_vec` points to a valid instance of `BitVec`
/// - `bit_vec` is not used concurrently or after this call
/// - `compression` matches one of the allowed enum values
/// - the returned `Command` instance is freed in some way, either by using a consuming function or
/// by explicitly calling `sp_command_dealloc`.
#[no_mangle]
pub unsafe extern "C" fn sp_command_bitmap_linear_or(
offset: Offset,
@ -114,7 +200,17 @@ pub unsafe extern "C" fn sp_command_bitmap_linear_or(
}
/// Allocates a new `Command::BitmapLinearXor` instance.
/// The passed `BitVec` gets deallocated in the process.
/// The passed `BitVec` gets consumed.
///
/// # Safety
///
/// The caller has to make sure that:
///
/// - `bit_vec` points to a valid instance of `BitVec`
/// - `bit_vec` is not used concurrently or after this call
/// - `compression` matches one of the allowed enum values
/// - the returned `Command` instance is freed in some way, either by using a consuming function or
/// by explicitly calling `sp_command_dealloc`.
#[no_mangle]
pub unsafe extern "C" fn sp_command_bitmap_linear_xor(
offset: Offset,
@ -130,7 +226,16 @@ pub unsafe extern "C" fn sp_command_bitmap_linear_xor(
}
/// Allocates a new `Command::Cp437Data` instance.
/// The passed `ByteGrid` gets deallocated in the process.
/// The passed `ByteGrid` gets consumed.
///
/// # Safety
///
/// The caller has to make sure that:
///
/// - `byte_grid` points to a valid instance of `ByteGrid`
/// - `byte_grid` is not used concurrently or after this call
/// - the returned `Command` instance is freed in some way, either by using a consuming function or
/// by explicitly calling `sp_command_dealloc`.
#[no_mangle]
pub unsafe extern "C" fn sp_command_cp437_data(
x: usize,
@ -142,15 +247,25 @@ pub unsafe extern "C" fn sp_command_cp437_data(
}
/// Allocates a new `Command::BitmapLinearWin` instance.
/// The passed `PixelGrid` gets deallocated in the process.
/// The passed `PixelGrid` gets consumed.
///
/// # Safety
///
/// The caller has to make sure that:
///
/// - `pixel_grid` points to a valid instance of `PixelGrid`
/// - `pixel_grid` is not used concurrently or after this call
/// - `compression` matches one of the allowed enum values
/// - the returned `Command` instance is freed in some way, either by using a consuming function or
/// by explicitly calling `sp_command_dealloc`.
#[no_mangle]
pub unsafe extern "C" fn sp_command_bitmap_linear_win(
x: usize,
y: usize,
byte_grid: *mut PixelGrid,
pixel_grid: *mut PixelGrid,
compression_code: CompressionCode,
) -> *mut Command {
let byte_grid = *Box::from_raw(byte_grid);
let byte_grid = *Box::from_raw(pixel_grid);
Box::into_raw(Box::new(Command::BitmapLinearWin(
Origin(x, y),
byte_grid,
@ -158,8 +273,15 @@ pub unsafe extern "C" fn sp_command_bitmap_linear_win(
)))
}
/// Deallocates a `Command`. Note that connection_send does this implicitly, so you only need
/// to do this if you use the library for parsing commands.
/// Deallocates a `Command`.
///
/// # Safety
///
/// The caller has to make sure that:
///
/// - `this` points to a valid `Command`
/// - `this` is not used concurrently or after this call
/// - `this` was not passed to another consuming function, e.g. to create a `Packet`
#[no_mangle]
pub unsafe extern "C" fn sp_command_dealloc(ptr: *mut Command) {
_ = Box::from_raw(ptr);

42
crates/servicepoint_binding_c/src/connection.rs
View file

@ -4,12 +4,20 @@ use std::ptr::null_mut;
pub use servicepoint::Connection;
use servicepoint::Packet;
/// Creates a new instance of Connection.
/// The returned instance has to be deallocated with `connection_dealloc`.
/// Creates a new instance of `Connection`.
///
/// returns: NULL if connection fails or connected instance
/// returns: NULL if connection fails, or connected instance
///
/// Panics: bad string encoding
/// # Panics
///
/// Bad string encoding
///
/// # Safety
///
/// The caller has to make sure that:
///
/// - the returned instance is freed in some way, either by using a consuming function or
/// by explicitly calling `sp_connection_dealloc`.
#[no_mangle]
pub unsafe extern "C" fn sp_connection_open(
host: *const c_char,
@ -23,17 +31,35 @@ pub unsafe extern "C" fn sp_connection_open(
Box::into_raw(Box::new(connection))
}
/// Sends the command instance. The instance is consumed / destroyed and cannot be used after this call.
/// Sends a `Packet` to the display using the `Connection`.
/// The passed `Packet` gets consumed.
///
/// returns: true in case of success
///
/// # Safety
///
/// The caller has to make sure that:
///
/// - `connection` points to a valid instance of `Connection`
/// - `packet` points to a valid instance of `Packet`
/// - `packet` is not used concurrently or after this call
#[no_mangle]
pub unsafe extern "C" fn sp_connection_send(
connection: *const Connection,
command_ptr: *mut Packet,
packet: *mut Packet,
) -> bool {
let packet = Box::from_raw(command_ptr);
let packet = Box::from_raw(packet);
(*connection).send(*packet).is_ok()
}
/// Closes and deallocates a connection instance
/// Closes and deallocates a `Connection`.
///
/// # Safety
///
/// The caller has to make sure that:
///
/// - `this` points to a valid `Connection`
/// - `this` is not used concurrently or after this call
#[no_mangle]
pub unsafe extern "C" fn sp_connection_dealloc(ptr: *mut Connection) {
_ = Box::from_raw(ptr);

31
crates/servicepoint_binding_c/src/lib.rs
View file

@ -1,14 +1,43 @@
//! C API wrapper for the `servicepoint` crate.
pub use servicepoint::{
CompressionCode, PIXEL_COUNT, PIXEL_HEIGHT, PIXEL_WIDTH, TILE_HEIGHT,
TILE_SIZE, TILE_WIDTH,
};
pub use crate::c_slice::CByteSlice;
/// C functions for interacting with `BitVec`s
///
/// prefix `sp_bit_vec_`
pub mod bit_vec;
/// C functions for interacting with `ByteGrid`s
///
/// prefix `sp_byte_grid_`
pub mod byte_grid;
pub mod c_slice;
/// C functions for interacting with `Command`s
///
/// prefix `sp_command_`
pub mod command;
/// C functions for interacting with `Connection`s
///
/// prefix `sp_connection_`
pub mod connection;
/// C functions for interacting with `Packet`s
///
/// prefix `sp_packet_`
pub mod packet;
/// C functions for interacting with `PixelGrid`s
///
/// prefix `sp_pixel_grid_`
pub mod pixel_grid;
/// The minimum time needed for the display to refresh the screen in ms.
pub const FRAME_PACING_MS: u32 = servicepoint::FRAME_PACING.as_millis() as u32;
mod c_slice;

21
crates/servicepoint_binding_c/src/packet.rs
View file

@ -3,7 +3,17 @@ use std::ptr::null_mut;
use servicepoint::Command;
pub use servicepoint::Packet;
/// Turns a `Command` into a `Packet`. The command gets deallocated in the process.
/// Turns a `Command` into a `Packet`.
/// The `Command` gets consumed.
///
/// # Safety
///
/// The caller has to make sure that:
///
/// - `command` points to a valid instance of `Command`
/// - `command` is not used concurrently or after this call
/// - the returned `Packet` instance is freed in some way, either by using a consuming function or
/// by explicitly calling `sp_packet_dealloc`.
#[no_mangle]
pub unsafe extern "C" fn sp_packet_from_command(
command: *mut Command,
@ -16,6 +26,15 @@ pub unsafe extern "C" fn sp_packet_from_command(
/// Tries to load a `Packet` from the passed array with the specified length.
///
/// returns: NULL in case of an error, pointer to the allocated packet otherwise
///
/// # Safety
///
/// The caller has to make sure that:
///
/// - `data` points to a valid memory region of at least `length` bytes
/// - `data` is not written to concurrently
/// - the returned `Packet` instance is freed in some way, either by using a consuming function or
/// by explicitly calling `sp_packet_dealloc`.
#[no_mangle]
pub unsafe extern "C" fn sp_packet_try_load(
data: *const u8,

141
crates/servicepoint_binding_c/src/pixel_grid.rs
View file

@ -2,8 +2,25 @@ use servicepoint::{DataRef, Grid, PixelGrid};
use crate::c_slice::CByteSlice;
/// Creates a new `PixelGrid` instance.
/// The returned instance has to be freed with `pixel_grid_dealloc`.
/// Creates a new `PixelGrid` with the specified dimensions.
///
/// # Arguments
///
/// * `width`: size in pixels in x-direction
/// * `height`: size in pixels in y-direction
///
/// returns: `PixelGrid` initialized to all pixels off
///
/// # Panics
///
/// - when the width is not dividable by 8
///
/// # Safety
///
/// The caller has to make sure that:
///
/// - the returned instance is freed in some way, either by using a consuming function or
/// by explicitly calling `sp_pixel_grid_dealloc`.
#[no_mangle]
pub unsafe extern "C" fn sp_pixel_grid_new(
width: usize,
@ -13,7 +30,26 @@ pub unsafe extern "C" fn sp_pixel_grid_new(
}
/// Loads a `PixelGrid` with the specified dimensions from the provided data.
/// The returned instance has to be freed with `pixel_grid_dealloc`.
///
/// # Arguments
///
/// * `width`: size in pixels in x-direction
/// * `height`: size in pixels in y-direction
///
/// returns: `PixelGrid` that contains a copy of the provided data
///
/// # Panics
///
/// - when the dimensions and data size do not match exactly.
/// - when the width is not dividable by 8
///
/// # Safety
///
/// The caller has to make sure that:
///
/// - `data` points to a valid memory location of at least `data_length` bytes in size.
/// - the returned instance is freed in some way, either by using a consuming function or
/// by explicitly calling `sp_pixel_grid_dealloc`.
#[no_mangle]
pub unsafe extern "C" fn sp_pixel_grid_load(
width: usize,
@ -26,7 +62,15 @@ pub unsafe extern "C" fn sp_pixel_grid_load(
}
/// Clones a `PixelGrid`.
/// The returned instance has to be freed with `pixel_grid_dealloc`.
///
/// # Safety
///
/// The caller has to make sure that:
///
/// - `this` points to a valid `PixelGrid`
/// - `this` is not written to concurrently
/// - the returned instance is freed in some way, either by using a consuming function or
/// by explicitly calling `sp_pixel_grid_dealloc`.
#[no_mangle]
pub unsafe extern "C" fn sp_pixel_grid_clone(
this: *const PixelGrid,
@ -36,13 +80,35 @@ pub unsafe extern "C" fn sp_pixel_grid_clone(
/// Deallocates a `PixelGrid`.
///
/// Note: do not call this if the grid has been consumed in another way, e.g. to create a command.
/// # Safety
///
/// The caller has to make sure that:
///
/// - `this` points to a valid `PixelGrid`
/// - `this` is not used concurrently or after this call
/// - `this` was not passed to another consuming function, e.g. to create a `Command`
#[no_mangle]
pub unsafe extern "C" fn sp_pixel_grid_dealloc(this: *mut PixelGrid) {
_ = Box::from_raw(this);
}
/// Get the current value at the specified position
/// Gets the current value at the specified position in the `PixelGrid`.
///
/// # Arguments
///
/// * `this`: instance to read from
/// * `x` and `y`: position of the cell to read
///
/// # Panics
///
/// When accessing `x` or `y` out of bounds.
///
/// # Safety
///
/// The caller has to make sure that:
///
/// - `this` points to a valid `PixelGrid`
/// - `this` is not written to concurrently
#[no_mangle]
pub unsafe extern "C" fn sp_pixel_grid_get(
this: *const PixelGrid,
@ -52,7 +118,26 @@ pub unsafe extern "C" fn sp_pixel_grid_get(
(*this).get(x, y)
}
/// Sets the current value at the specified position
/// Sets the value of the specified position in the `PixelGrid`.
///
/// # Arguments
///
/// * `this`: instance to write to
/// * `x` and `y`: position of the cell
/// * `value`: the value to write to the cell
///
/// returns: old value of the cell
///
/// # Panics
///
/// When accessing `x` or `y` out of bounds.
///
/// # Safety
///
/// The caller has to make sure that:
///
/// - `this` points to a valid `PixelGrid`
/// - `this` is not written to or read from concurrently
#[no_mangle]
pub unsafe extern "C" fn sp_pixel_grid_set(
this: *mut PixelGrid,
@ -63,19 +148,51 @@ pub unsafe extern "C" fn sp_pixel_grid_set(
(*this).set(x, y, value);
}
/// Fills the whole `PixelGrid` with the specified value
/// Sets the state of all pixels in the `PixelGrid`.
///
/// # Arguments
///
/// * `this`: instance to write to
/// * `value`: the value to set all pixels to
///
/// # Safety
///
/// The caller has to make sure that:
///
/// - `this` points to a valid `PixelGrid`
/// - `this` is not written to or read from concurrently
#[no_mangle]
pub unsafe extern "C" fn sp_pixel_grid_fill(this: *mut PixelGrid, value: bool) {
(*this).fill(value);
}
/// Gets the width in pixels of the `PixelGrid` instance.
///
/// # Arguments
///
/// * `this`: instance to read from
///
/// # Safety
///
/// The caller has to make sure that:
///
/// - `this` points to a valid `PixelGrid`
#[no_mangle]
pub unsafe extern "C" fn sp_pixel_grid_width(this: *const PixelGrid) -> usize {
(*this).width()
}
/// Gets the height in pixels of the `PixelGrid` instance.
///
/// # Arguments
///
/// * `this`: instance to read from
///
/// # Safety
///
/// The caller has to make sure that:
///
/// - `this` points to a valid `PixelGrid`
#[no_mangle]
pub unsafe extern "C" fn sp_pixel_grid_height(this: *const PixelGrid) -> usize {
(*this).height()
@ -85,11 +202,11 @@ pub unsafe extern "C" fn sp_pixel_grid_height(this: *const PixelGrid) -> usize {
///
/// ## Safety
///
/// The caller has to make sure to never access the returned memory after the `PixelGrid`
/// instance has been consumed or manually deallocated.
/// The caller has to make sure that:
///
/// Reading and writing concurrently to either the original instance or the returned data will
/// result in undefined behavior.
/// - `this` points to a valid `PixelGrid`
/// - the returned memory range is never accessed after the passed `PixelGrid` has been freed
/// - the returned memory range is never accessed concurrently, either via the `PixelGrid` or directly
#[no_mangle]
pub unsafe extern "C" fn sp_pixel_grid_unsafe_data_ref(
this: *mut PixelGrid,

7
crates/servicepoint_binding_cs/Cargo.toml
View file

@ -13,5 +13,8 @@ test = false
csbindgen = "1.8.0"
[dependencies]
servicepoint_binding_c = { version = "0.5.0", path = "../servicepoint_binding_c" }
servicepoint = { version = "0.5.0", path = "../servicepoint" }
servicepoint_binding_c = { version = "0.5.1", path = "../servicepoint_binding_c" }
servicepoint = { version = "0.5.1", path = "../servicepoint" }
[lints]
workspace = true

102
crates/servicepoint_binding_cs/ServicePoint/BindGen/ServicePoint.g.cs
View file

@ -19,204 +19,204 @@ namespace ServicePoint.BindGen
public const nuint TILE_HEIGHT = 20;
/// <summary>Creates a new `BitVec` instance. The returned instance has to be freed with `bit_vec_dealloc`.</summary>
/// <summary>Creates a new `BitVec` instance. # Arguments * `size`: size in bits. returns: `BitVec` with all bits set to false. # Panics When `size` is not divisible by 8. # Safety The caller has to make sure that: - the returned instance is freed in some way, either by using a consuming function or by explicitly calling `sp_bit_vec_dealloc`.</summary>
[DllImport(__DllName, EntryPoint = "sp_bit_vec_new", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
public static extern BitVec* sp_bit_vec_new(nuint size);
/// <summary>Loads a `BitVec` from the provided data. The returned instance has to be freed with `bit_vec_dealloc`.</summary>
/// <summary>Interpret the data as a series of bits and load then into a new `BitVec` instance. # Safety The caller has to make sure that: - `data` points to a valid memory location of at least `data_length` bytes in size. - the returned instance is freed in some way, either by using a consuming function or by explicitly calling `sp_bit_vec_dealloc`.</summary>
[DllImport(__DllName, EntryPoint = "sp_bit_vec_load", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
public static extern BitVec* sp_bit_vec_load(byte* data, nuint data_length);
/// <summary>Clones a `BitVec`. The returned instance has to be freed with `bit_vec_dealloc`.</summary>
/// <summary>Clones a `BitVec`. # Safety The caller has to make sure that: - `this` points to a valid `BitVec` - `this` is not written to concurrently - the returned instance is freed in some way, either by using a consuming function or by explicitly calling `sp_bit_vec_dealloc`.</summary>
[DllImport(__DllName, EntryPoint = "sp_bit_vec_clone", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
public static extern BitVec* sp_bit_vec_clone(BitVec* @this);
/// <summary>Deallocates a `BitVec`. Note: do not call this if the grid has been consumed in another way, e.g. to create a command.</summary>
/// <summary>Deallocates a `BitVec`. # Safety The caller has to make sure that: - `this` points to a valid `BitVec` - `this` is not used concurrently or after this call - `this` was not passed to another consuming function, e.g. to create a `Command`</summary>
[DllImport(__DllName, EntryPoint = "sp_bit_vec_dealloc", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
public static extern void sp_bit_vec_dealloc(BitVec* @this);
/// <summary>Gets the value of a bit from the `BitVec`.</summary>
/// <summary>Gets the value of a bit from the `BitVec`. # Arguments * `this`: instance to read from * `index`: the bit index to read returns: value of the bit # Panics When accessing `index` out of bounds. # Safety The caller has to make sure that: - `this` points to a valid `BitVec` - `this` is not written to concurrently</summary>
[DllImport(__DllName, EntryPoint = "sp_bit_vec_get", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
[return: MarshalAs(UnmanagedType.U1)]
public static extern bool sp_bit_vec_get(BitVec* @this, nuint index);
/// <summary>Sets the value of a bit in the `BitVec`.</summary>
/// <summary>Sets the value of a bit in the `BitVec`. # Arguments * `this`: instance to write to * `index`: the bit index to edit * `value`: the value to set the bit to returns: old value of the bit # Panics When accessing `index` out of bounds. # Safety The caller has to make sure that: - `this` points to a valid `BitVec` - `this` is not written to or read from concurrently</summary>
[DllImport(__DllName, EntryPoint = "sp_bit_vec_set", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
[return: MarshalAs(UnmanagedType.U1)]
public static extern bool sp_bit_vec_set(BitVec* @this, nuint index, [MarshalAs(UnmanagedType.U1)] bool value);
/// <summary>Sets the value of all bits in the `BitVec`.</summary>
/// <summary>Sets the value of all bits in the `BitVec`. # Arguments * `value`: the value to set all bits to # Safety The caller has to make sure that: - `this` points to a valid `BitVec` - `this` is not written to or read from concurrently</summary>
[DllImport(__DllName, EntryPoint = "sp_bit_vec_fill", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
public static extern void sp_bit_vec_fill(BitVec* @this, [MarshalAs(UnmanagedType.U1)] bool value);
/// <summary>Gets the length of the `BitVec` in bits.</summary>
/// <summary>Gets the length of the `BitVec` in bits. # Safety The caller has to make sure that: - `this` points to a valid `BitVec`</summary>
[DllImport(__DllName, EntryPoint = "sp_bit_vec_len", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
public static extern nuint sp_bit_vec_len(BitVec* @this);
/// <summary>Returns true if length is 0.</summary>
/// <summary>Returns true if length is 0. # Safety The caller has to make sure that: - `this` points to a valid `BitVec`</summary>
[DllImport(__DllName, EntryPoint = "sp_bit_vec_is_empty", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
[return: MarshalAs(UnmanagedType.U1)]
public static extern bool sp_bit_vec_is_empty(BitVec* @this);
/// <summary>Gets an unsafe reference to the data of the `BitVec` instance. ## Safety The caller has to make sure to never access the returned memory after the `BitVec` instance has been consumed or manually deallocated. Reading and writing concurrently to either the original instance or the returned data will result in undefined behavior.</summary>
/// <summary>Gets an unsafe reference to the data of the `BitVec` instance. ## Safety The caller has to make sure that: - `this` points to a valid `BitVec` - the returned memory range is never accessed after the passed `BitVec` has been freed - the returned memory range is never accessed concurrently, either via the `BitVec` or directly</summary>
[DllImport(__DllName, EntryPoint = "sp_bit_vec_unsafe_data_ref", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
public static extern CByteSlice sp_bit_vec_unsafe_data_ref(BitVec* @this);
/// <summary>Creates a new `ByteGrid` instance. The returned instance has to be freed with `byte_grid_dealloc`.</summary>
/// <summary>Creates a new `ByteGrid` with the specified dimensions. returns: `ByteGrid` initialized to 0. # Safety The caller has to make sure that: - the returned instance is freed in some way, either by using a consuming function or by explicitly calling `sp_byte_grid_dealloc`.</summary>
[DllImport(__DllName, EntryPoint = "sp_byte_grid_new", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
public static extern ByteGrid* sp_byte_grid_new(nuint width, nuint height);
/// <summary>Loads a `ByteGrid` with the specified dimensions from the provided data. The returned instance has to be freed with `byte_grid_dealloc`.</summary>
/// <summary>Loads a `ByteGrid` with the specified dimensions from the provided data. # Panics When the provided `data_length` is not sufficient for the `height` and `width` # Safety The caller has to make sure that: - `data` points to a valid memory location of at least `data_length` bytes in size. - the returned instance is freed in some way, either by using a consuming function or by explicitly calling `sp_byte_grid_dealloc`.</summary>
[DllImport(__DllName, EntryPoint = "sp_byte_grid_load", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
public static extern ByteGrid* sp_byte_grid_load(nuint width, nuint height, byte* data, nuint data_length);
/// <summary>Clones a `ByteGrid`. The returned instance has to be freed with `byte_grid_dealloc`.</summary>
/// <summary>Clones a `ByteGrid`. # Safety The caller has to make sure that: - `this` points to a valid `ByteGrid` - `this` is not written to concurrently - the returned instance is freed in some way, either by using a consuming function or by explicitly calling `sp_byte_grid_dealloc`.</summary>
[DllImport(__DllName, EntryPoint = "sp_byte_grid_clone", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
public static extern ByteGrid* sp_byte_grid_clone(ByteGrid* @this);
/// <summary>Deallocates a `ByteGrid`. Note: do not call this if the grid has been consumed in another way, e.g. to create a command.</summary>
/// <summary>Deallocates a `ByteGrid`. # Safety The caller has to make sure that: - `this` points to a valid `ByteGrid` - `this` is not used concurrently or after this call - `this` was not passed to another consuming function, e.g. to create a `Command`</summary>
[DllImport(__DllName, EntryPoint = "sp_byte_grid_dealloc", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
public static extern void sp_byte_grid_dealloc(ByteGrid* @this);
/// <summary>Get the current value at the specified position</summary>
/// <summary>Gets the current value at the specified position. # Arguments * `this`: instance to read from * `x` and `y`: position of the cell to read # Panics When accessing `x` or `y` out of bounds. # Safety The caller has to make sure that: - `this` points to a valid `ByteGrid` - `this` is not written to concurrently</summary>
[DllImport(__DllName, EntryPoint = "sp_byte_grid_get", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
public static extern byte sp_byte_grid_get(ByteGrid* @this, nuint x, nuint y);
/// <summary>Sets the current value at the specified position</summary>
/// <summary>Sets the value of the specified position in the `ByteGrid`. # Arguments * `this`: instance to write to * `x` and `y`: position of the cell * `value`: the value to write to the cell returns: old value of the cell # Panics When accessing `x` or `y` out of bounds. # Safety The caller has to make sure that: - `this` points to a valid `BitVec` - `this` is not written to or read from concurrently</summary>
[DllImport(__DllName, EntryPoint = "sp_byte_grid_set", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
public static extern void sp_byte_grid_set(ByteGrid* @this, nuint x, nuint y, byte value);
/// <summary>Fills the whole `ByteGrid` with the specified value</summary>
/// <summary>Sets the value of all cells in the `ByteGrid`. # Arguments * `this`: instance to write to * `value`: the value to set all cells to # Safety The caller has to make sure that: - `this` points to a valid `ByteGrid` - `this` is not written to or read from concurrently</summary>
[DllImport(__DllName, EntryPoint = "sp_byte_grid_fill", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
public static extern void sp_byte_grid_fill(ByteGrid* @this, byte value);
/// <summary>Gets the width in pixels of the `ByteGrid` instance.</summary>
/// <summary>Gets the width of the `ByteGrid` instance. # Arguments * `this`: instance to read from # Safety The caller has to make sure that: - `this` points to a valid `ByteGrid`</summary>
[DllImport(__DllName, EntryPoint = "sp_byte_grid_width", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
public static extern nuint sp_byte_grid_width(ByteGrid* @this);
/// <summary>Gets the height in pixels of the `ByteGrid` instance.</summary>
/// <summary>Gets the height of the `ByteGrid` instance. # Arguments * `this`: instance to read from # Safety The caller has to make sure that: - `this` points to a valid `ByteGrid`</summary>
[DllImport(__DllName, EntryPoint = "sp_byte_grid_height", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
public static extern nuint sp_byte_grid_height(ByteGrid* @this);
/// <summary>Gets an unsafe reference to the data of the `ByteGrid` instance. ## Safety The caller has to make sure to never access the returned memory after the `ByteGrid` instance has been consumed or manually deallocated. Reading and writing concurrently to either the original instance or the returned data will result in undefined behavior.</summary>
/// <summary>Gets an unsafe reference to the data of the `ByteGrid` instance. ## Safety The caller has to make sure that: - `this` points to a valid `ByteGrid` - the returned memory range is never accessed after the passed `ByteGrid` has been freed - the returned memory range is never accessed concurrently, either via the `ByteGrid` or directly</summary>
[DllImport(__DllName, EntryPoint = "sp_byte_grid_unsafe_data_ref", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
public static extern CByteSlice sp_byte_grid_unsafe_data_ref(ByteGrid* @this);
/// <summary>Tries to turn a `Packet` into a `Command`. The packet is gets deallocated in the process. Returns: pointer to command or NULL</summary>
/// <summary>Tries to turn a `Packet` into a `Command`. The packet is deallocated in the process. Returns: pointer to new `Command` instance or NULL # Safety The caller has to make sure that: - `packet` points to a valid instance of `Packet` - `packet` is not used concurrently or after this call - the result is checked for NULL - the returned `Command` instance is freed in some way, either by using a consuming function or by explicitly calling `sp_command_dealloc`.</summary>
[DllImport(__DllName, EntryPoint = "sp_command_try_from_packet", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
public static extern Command* sp_command_try_from_packet(Packet* packet);
/// <summary>Clones a `Command` instance</summary>
/// <summary>Clones a `Command` instance. # Safety The caller has to make sure that: - `this` points to a valid instance of `Command` - `this` is not written to concurrently - the returned `Command` instance is freed in some way, either by using a consuming function or by explicitly calling `sp_command_dealloc`.</summary>
[DllImport(__DllName, EntryPoint = "sp_command_clone", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
public static extern Command* sp_command_clone(Command* original);
/// <summary>Allocates a new `Command::Clear` instance</summary>
/// <summary>Allocates a new `Command::Clear` instance. # Safety The caller has to make sure that: - the returned `Command` instance is freed in some way, either by using a consuming function or by explicitly calling `sp_command_dealloc`.</summary>
[DllImport(__DllName, EntryPoint = "sp_command_clear", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
public static extern Command* sp_command_clear();
/// <summary>Allocates a new `Command::HardReset` instance</summary>
/// <summary>Allocates a new `Command::HardReset` instance. # Safety The caller has to make sure that: - the returned `Command` instance is freed in some way, either by using a consuming function or by explicitly calling `sp_command_dealloc`.</summary>
[DllImport(__DllName, EntryPoint = "sp_command_hard_reset", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
public static extern Command* sp_command_hard_reset();
/// <summary>Allocates a new `Command::FadeOut` instance</summary>
/// <summary>Allocates a new `Command::FadeOut` instance. # Safety The caller has to make sure that: - the returned `Command` instance is freed in some way, either by using a consuming function or by explicitly calling `sp_command_dealloc`.</summary>
[DllImport(__DllName, EntryPoint = "sp_command_fade_out", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
public static extern Command* sp_command_fade_out();
/// <summary>Allocates a new `Command::Brightness` instance</summary>
/// <summary>Allocates a new `Command::Brightness` instance. # Safety The caller has to make sure that: - the returned `Command` instance is freed in some way, either by using a consuming function or by explicitly calling `sp_command_dealloc`.</summary>
[DllImport(__DllName, EntryPoint = "sp_command_brightness", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
public static extern Command* sp_command_brightness(byte brightness);
/// <summary>Allocates a new `Command::CharBrightness` instance. The passed `ByteGrid` gets deallocated in the process.</summary>
/// <summary>Allocates a new `Command::CharBrightness` instance. The passed `ByteGrid` gets consumed. # Safety The caller has to make sure that: - `byte_grid` points to a valid instance of `ByteGrid` - `byte_grid` is not used concurrently or after this call - the returned `Command` instance is freed in some way, either by using a consuming function or by explicitly calling `sp_command_dealloc`.</summary>
[DllImport(__DllName, EntryPoint = "sp_command_char_brightness", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
public static extern Command* sp_command_char_brightness(nuint x, nuint y, ByteGrid* byte_grid);
/// <summary>Allocates a new `Command::BitmapLinear` instance. The passed `BitVec` gets deallocated in the process.</summary>
/// <summary>Allocates a new `Command::BitmapLinear` instance. The passed `BitVec` gets consumed. # Safety The caller has to make sure that: - `bit_vec` points to a valid instance of `BitVec` - `bit_vec` is not used concurrently or after this call - `compression` matches one of the allowed enum values - the returned `Command` instance is freed in some way, either by using a consuming function or by explicitly calling `sp_command_dealloc`.</summary>
[DllImport(__DllName, EntryPoint = "sp_command_bitmap_linear", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
public static extern Command* sp_command_bitmap_linear(nuint offset, BitVec* bit_vec, CompressionCode compression);
/// <summary>Allocates a new `Command::BitmapLinearAnd` instance. The passed `BitVec` gets deallocated in the process.</summary>
/// <summary>Allocates a new `Command::BitmapLinearAnd` instance. The passed `BitVec` gets consumed. # Safety The caller has to make sure that: - `bit_vec` points to a valid instance of `BitVec` - `bit_vec` is not used concurrently or after this call - `compression` matches one of the allowed enum values - the returned `Command` instance is freed in some way, either by using a consuming function or by explicitly calling `sp_command_dealloc`.</summary>
[DllImport(__DllName, EntryPoint = "sp_command_bitmap_linear_and", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
public static extern Command* sp_command_bitmap_linear_and(nuint offset, BitVec* bit_vec, CompressionCode compression);
/// <summary>Allocates a new `Command::BitmapLinearOr` instance. The passed `BitVec` gets deallocated in the process.</summary>
/// <summary>Allocates a new `Command::BitmapLinearOr` instance. The passed `BitVec` gets consumed. # Safety The caller has to make sure that: - `bit_vec` points to a valid instance of `BitVec` - `bit_vec` is not used concurrently or after this call - `compression` matches one of the allowed enum values - the returned `Command` instance is freed in some way, either by using a consuming function or by explicitly calling `sp_command_dealloc`.</summary>
[DllImport(__DllName, EntryPoint = "sp_command_bitmap_linear_or", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
public static extern Command* sp_command_bitmap_linear_or(nuint offset, BitVec* bit_vec, CompressionCode compression);
/// <summary>Allocates a new `Command::BitmapLinearXor` instance. The passed `BitVec` gets deallocated in the process.</summary>
/// <summary>Allocates a new `Command::BitmapLinearXor` instance. The passed `BitVec` gets consumed. # Safety The caller has to make sure that: - `bit_vec` points to a valid instance of `BitVec` - `bit_vec` is not used concurrently or after this call - `compression` matches one of the allowed enum values - the returned `Command` instance is freed in some way, either by using a consuming function or by explicitly calling `sp_command_dealloc`.</summary>
[DllImport(__DllName, EntryPoint = "sp_command_bitmap_linear_xor", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
public static extern Command* sp_command_bitmap_linear_xor(nuint offset, BitVec* bit_vec, CompressionCode compression);
/// <summary>Allocates a new `Command::Cp437Data` instance. The passed `ByteGrid` gets deallocated in the process.</summary>
/// <summary>Allocates a new `Command::Cp437Data` instance. The passed `ByteGrid` gets consumed. # Safety The caller has to make sure that: - `byte_grid` points to a valid instance of `ByteGrid` - `byte_grid` is not used concurrently or after this call - the returned `Command` instance is freed in some way, either by using a consuming function or by explicitly calling `sp_command_dealloc`.</summary>
[DllImport(__DllName, EntryPoint = "sp_command_cp437_data", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
public static extern Command* sp_command_cp437_data(nuint x, nuint y, ByteGrid* byte_grid);
/// <summary>Allocates a new `Command::BitmapLinearWin` instance. The passed `PixelGrid` gets deallocated in the process.</summary>
/// <summary>Allocates a new `Command::BitmapLinearWin` instance. The passed `PixelGrid` gets consumed. # Safety The caller has to make sure that: - `pixel_grid` points to a valid instance of `PixelGrid` - `pixel_grid` is not used concurrently or after this call - `compression` matches one of the allowed enum values - the returned `Command` instance is freed in some way, either by using a consuming function or by explicitly calling `sp_command_dealloc`.</summary>
[DllImport(__DllName, EntryPoint = "sp_command_bitmap_linear_win", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
public static extern Command* sp_command_bitmap_linear_win(nuint x, nuint y, PixelGrid* byte_grid, CompressionCode compression_code);
public static extern Command* sp_command_bitmap_linear_win(nuint x, nuint y, PixelGrid* pixel_grid, CompressionCode compression_code);
/// <summary>Deallocates a `Command`. Note that connection_send does this implicitly, so you only need to do this if you use the library for parsing commands.</summary>
/// <summary>Deallocates a `Command`. # Safety The caller has to make sure that: - `this` points to a valid `Command` - `this` is not used concurrently or after this call - `this` was not passed to another consuming function, e.g. to create a `Packet`</summary>
[DllImport(__DllName, EntryPoint = "sp_command_dealloc", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
public static extern void sp_command_dealloc(Command* ptr);
/// <summary>Creates a new instance of Connection. The returned instance has to be deallocated with `connection_dealloc`. returns: NULL if connection fails or connected instance Panics: bad string encoding</summary>
/// <summary>Creates a new instance of `Connection`. returns: NULL if connection fails, or connected instance # Panics Bad string encoding # Safety The caller has to make sure that: - the returned instance is freed in some way, either by using a consuming function or by explicitly calling `sp_connection_dealloc`.</summary>
[DllImport(__DllName, EntryPoint = "sp_connection_open", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
public static extern Connection* sp_connection_open(byte* host);
/// <summary>Sends the command instance. The instance is consumed / destroyed and cannot be used after this call.</summary>
/// <summary>Sends a `Packet` to the display using the `Connection`. The passed `Packet` gets consumed. returns: true in case of success # Safety The caller has to make sure that: - `connection` points to a valid instance of `Connection` - `packet` points to a valid instance of `Packet` - `packet` is not used concurrently or after this call</summary>
[DllImport(__DllName, EntryPoint = "sp_connection_send", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
[return: MarshalAs(UnmanagedType.U1)]
public static extern bool sp_connection_send(Connection* connection, Packet* command_ptr);
public static extern bool sp_connection_send(Connection* connection, Packet* packet);
/// <summary>Closes and deallocates a connection instance</summary>
/// <summary>Closes and deallocates a `Connection`. # Safety The caller has to make sure that: - `this` points to a valid `Connection` - `this` is not used concurrently or after this call</summary>
[DllImport(__DllName, EntryPoint = "sp_connection_dealloc", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
public static extern void sp_connection_dealloc(Connection* ptr);
/// <summary>Creates a new `PixelGrid` instance. The returned instance has to be freed with `pixel_grid_dealloc`.</summary>
/// <summary>Creates a new `PixelGrid` with the specified dimensions. # Arguments * `width`: size in pixels in x-direction * `height`: size in pixels in y-direction returns: `PixelGrid` initialized to all pixels off # Panics - when the width is not dividable by 8 # Safety The caller has to make sure that: - the returned instance is freed in some way, either by using a consuming function or by explicitly calling `sp_pixel_grid_dealloc`.</summary>
[DllImport(__DllName, EntryPoint = "sp_pixel_grid_new", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
public static extern PixelGrid* sp_pixel_grid_new(nuint width, nuint height);
/// <summary>Loads a `PixelGrid` with the specified dimensions from the provided data. The returned instance has to be freed with `pixel_grid_dealloc`.</summary>
/// <summary>Loads a `PixelGrid` with the specified dimensions from the provided data. # Arguments * `width`: size in pixels in x-direction * `height`: size in pixels in y-direction returns: `PixelGrid` that contains a copy of the provided data # Panics - when the dimensions and data size do not match exactly. - when the width is not dividable by 8 # Safety The caller has to make sure that: - `data` points to a valid memory location of at least `data_length` bytes in size. - the returned instance is freed in some way, either by using a consuming function or by explicitly calling `sp_pixel_grid_dealloc`.</summary>
[DllImport(__DllName, EntryPoint = "sp_pixel_grid_load", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
public static extern PixelGrid* sp_pixel_grid_load(nuint width, nuint height, byte* data, nuint data_length);
/// <summary>Clones a `PixelGrid`. The returned instance has to be freed with `pixel_grid_dealloc`.</summary>
/// <summary>Clones a `PixelGrid`. # Safety The caller has to make sure that: - `this` points to a valid `PixelGrid` - `this` is not written to concurrently - the returned instance is freed in some way, either by using a consuming function or by explicitly calling `sp_pixel_grid_dealloc`.</summary>
[DllImport(__DllName, EntryPoint = "sp_pixel_grid_clone", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
public static extern PixelGrid* sp_pixel_grid_clone(PixelGrid* @this);
/// <summary>Deallocates a `PixelGrid`. Note: do not call this if the grid has been consumed in another way, e.g. to create a command.</summary>
/// <summary>Deallocates a `PixelGrid`. # Safety The caller has to make sure that: - `this` points to a valid `PixelGrid` - `this` is not used concurrently or after this call - `this` was not passed to another consuming function, e.g. to create a `Command`</summary>
[DllImport(__DllName, EntryPoint = "sp_pixel_grid_dealloc", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
public static extern void sp_pixel_grid_dealloc(PixelGrid* @this);
/// <summary>Get the current value at the specified position</summary>
/// <summary>Gets the current value at the specified position in the `PixelGrid`. # Arguments * `this`: instance to read from * `x` and `y`: position of the cell to read # Panics When accessing `x` or `y` out of bounds. # Safety The caller has to make sure that: - `this` points to a valid `PixelGrid` - `this` is not written to concurrently</summary>
[DllImport(__DllName, EntryPoint = "sp_pixel_grid_get", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
[return: MarshalAs(UnmanagedType.U1)]
public static extern bool sp_pixel_grid_get(PixelGrid* @this, nuint x, nuint y);
/// <summary>Sets the current value at the specified position</summary>
/// <summary>Sets the value of the specified position in the `PixelGrid`. # Arguments * `this`: instance to write to * `x` and `y`: position of the cell * `value`: the value to write to the cell returns: old value of the cell # Panics When accessing `x` or `y` out of bounds. # Safety The caller has to make sure that: - `this` points to a valid `PixelGrid` - `this` is not written to or read from concurrently</summary>
[DllImport(__DllName, EntryPoint = "sp_pixel_grid_set", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
public static extern void sp_pixel_grid_set(PixelGrid* @this, nuint x, nuint y, [MarshalAs(UnmanagedType.U1)] bool value);
/// <summary>Fills the whole `PixelGrid` with the specified value</summary>
/// <summary>Sets the state of all pixels in the `PixelGrid`. # Arguments * `this`: instance to write to * `value`: the value to set all pixels to # Safety The caller has to make sure that: - `this` points to a valid `PixelGrid` - `this` is not written to or read from concurrently</summary>
[DllImport(__DllName, EntryPoint = "sp_pixel_grid_fill", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
public static extern void sp_pixel_grid_fill(PixelGrid* @this, [MarshalAs(UnmanagedType.U1)] bool value);
/// <summary>Gets the width in pixels of the `PixelGrid` instance.</summary>
/// <summary>Gets the width in pixels of the `PixelGrid` instance. # Arguments * `this`: instance to read from # Safety The caller has to make sure that: - `this` points to a valid `PixelGrid`</summary>
[DllImport(__DllName, EntryPoint = "sp_pixel_grid_width", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
public static extern nuint sp_pixel_grid_width(PixelGrid* @this);
/// <summary>Gets the height in pixels of the `PixelGrid` instance.</summary>
/// <summary>Gets the height in pixels of the `PixelGrid` instance. # Arguments * `this`: instance to read from # Safety The caller has to make sure that: - `this` points to a valid `PixelGrid`</summary>
[DllImport(__DllName, EntryPoint = "sp_pixel_grid_height", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
public static extern nuint sp_pixel_grid_height(PixelGrid* @this);
/// <summary>Gets an unsafe reference to the data of the `PixelGrid` instance. ## Safety The caller has to make sure to never access the returned memory after the `PixelGrid` instance has been consumed or manually deallocated. Reading and writing concurrently to either the original instance or the returned data will result in undefined behavior.</summary>
/// <summary>Gets an unsafe reference to the data of the `PixelGrid` instance. ## Safety The caller has to make sure that: - `this` points to a valid `PixelGrid` - the returned memory range is never accessed after the passed `PixelGrid` has been freed - the returned memory range is never accessed concurrently, either via the `PixelGrid` or directly</summary>
[DllImport(__DllName, EntryPoint = "sp_pixel_grid_unsafe_data_ref", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
public static extern CByteSlice sp_pixel_grid_unsafe_data_ref(PixelGrid* @this);
/// <summary>Turns a `Command` into a `Packet`. The command gets deallocated in the process.</summary>
/// <summary>Turns a `Command` into a `Packet`. The `Command` gets consumed. # Safety The caller has to make sure that: - `command` points to a valid instance of `Command` - `command` is not used concurrently or after this call - the returned `Packet` instance is freed in some way, either by using a consuming function or by explicitly calling `sp_packet_dealloc`.</summary>
[DllImport(__DllName, EntryPoint = "sp_packet_from_command", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
public static extern Packet* sp_packet_from_command(Command* command);
/// <summary>Tries to load a `Packet` from the passed array with the specified length. returns: NULL in case of an error, pointer to the allocated packet otherwise</summary>
/// <summary>Tries to load a `Packet` from the passed array with the specified length. returns: NULL in case of an error, pointer to the allocated packet otherwise # Safety The caller has to make sure that: - `data` points to a valid memory region of at least `length` bytes - `data` is not written to concurrently - the returned `Packet` instance is freed in some way, either by using a consuming function or by explicitly calling `sp_packet_dealloc`.</summary>
[DllImport(__DllName, EntryPoint = "sp_packet_try_load", CallingConvention = CallingConvention.Cdecl, ExactSpelling = true)]
public static extern Packet* sp_packet_try_load(byte* data, nuint length);

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crates/servicepoint_binding_cs/ServicePoint/ServicePoint.csproj
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@ -12,7 +12,7 @@
<PropertyGroup>
<PackageId>ServicePoint</PackageId>
<Version>0.5.0</Version>
<Version>0.5.1</Version>
<Authors>Repository Authors</Authors>
<Company>None</Company>
<Product>ServicePoint</Product>

2
crates/servicepoint_binding_cs/build.rs
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@ -1,3 +1,5 @@
//! Build script generating the C# code needed to call methods from the `servicepoint` C library.
fn main() {
println!("cargo:rerun-if-changed=../servicepoint_binding_c/src");
println!("cargo:rerun-if-changed=build.rs");

2
crates/servicepoint_binding_cs/src/lib.rs
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@ -1 +1 @@
//! This crate is intentionally left empty. Only the build script is relevant here.