thindx 0.0.0-unsound.5

Thin DirectX wrappers
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38

use crate::*;
use crate::xinput::*;

use winapi::um::xinput::*;



/// \[[docs.microsoft.com](https://docs.microsoft.com/en-us/windows/win32/api/xinput/nf-xinput-xinputsetstate)\]
/// XInputSetState
///
/// Control the vibration of a controller.
///
/// ### Errors
/// *   [ERROR::BAD_ARGUMENTS]          - Invalid [`User`] or [`User::Any`]
/// *   [ERROR::DEVICE_NOT_CONNECTED]   - [`User`] is not connected
pub fn set_state(user_index: impl Into<User>, mut vibration: Vibration) -> Result<(), MethodError> {
    // SAFETY: ✔️
    //  * fuzzed        in `fuzz-xinput.rs`
    //  * tested        in `d3d9-02-xinput.rs`
    //  * `user_index`  is well tested from 0 ..= 255 (but retest if the type of `user_index` expands to allow `u32`!)
    //  * `vibration`   is never null, fixed size, no `cbSize` field, all bit patterns are valid and reasonable
    let code = unsafe { XInputSetState(user_index.into().into(), &mut vibration as *mut _ as *mut _) };
    check_error_success("XInputSetState", code)
}

#[test] fn test_valid_params() {
    let v = Vibration::default();
    if let Err(err) = set_state(User::Zero,  v) { assert_eq!(err.kind(), ERROR::DEVICE_NOT_CONNECTED); }
    if let Err(err) = set_state(User::Three, v) { assert_eq!(err.kind(), ERROR::DEVICE_NOT_CONNECTED); }
    if let Err(err) = set_state(User::Zero,  v) { assert_eq!(err.kind(), ERROR::DEVICE_NOT_CONNECTED); }
    if let Err(err) = set_state(User::Three, v) { assert_eq!(err.kind(), ERROR::DEVICE_NOT_CONNECTED); }
}

#[test] fn test_bad_arguments() {
    let v = Vibration::default();
    assert_eq!(ERROR::BAD_ARGUMENTS, set_state(User::Any,               v));
    assert_eq!(ERROR::BAD_ARGUMENTS, set_state(User::from_unchecked(4), v));
}