entailz/wry
1
0
Fork 0
forked from wry/wry
Code Pull requests Activity

implement wlr-gamma-control-unstable-v1

Browse source
This commit is contained in:
khyperia 2026-01-24 20:26:51 +01:00 • committed by Julian Orth
parent 11b3f08514
commit b1db715a90
26 changed files with 475 additions and 21 deletions
Download patch file Download diff file Expand all files Collapse all files

16
src/clientmem.rs
View file

@ -16,7 +16,7 @@ use {
},
thiserror::Error,
uapi::{
OwnedFd,
OwnedFd, Pod,
c::{self, raise},
ftruncate,
},
@ -30,6 +30,8 @@ pub enum ClientMemError {
Sigbus,
#[error("mmap failed")]
MmapFailed(#[source] crate::utils::oserror::OsError),
#[error("Length was not a multiple of the data element size")]
InvalidLength,
}
pub struct ClientMem {
@ -182,13 +184,17 @@ impl ClientMemOffset {
}
}
pub fn read(&self, dst: &mut Vec<u8>) -> Result<(), ClientMemError> {
pub fn read<T: Pod>(&self, dst: &mut Vec<T>) -> Result<(), ClientMemError> {
if self.data.len().checked_rem(std::mem::size_of::<T>()) != Some(0) {
return Err(ClientMemError::InvalidLength);
}
self.access(|v| {
dst.reserve(v.len());
let (_, unused) = dst.split_at_spare_mut_ext();
let len_elements = v.len() / std::mem::size_of::<T>();
dst.reserve(len_elements);
let (_, unused) = dst.split_at_spare_mut_bytes_ext();
unused[..v.len()].copy_from_slice(uapi::as_maybe_uninit_bytes(v));
unsafe {
dst.set_len(dst.len() + v.len());
dst.set_len(dst.len() + len_elements);
}
})
}