1use std::marker::PhantomData;
  2
  3use crate::{
  4    alloc_aligned,
  5    layouts::{Backend, Data, DataMut, DataRef, DataView, DataViewMut, ZnxInfos, ZnxView},
  6    oep::VmpPMatAllocBytesImpl,
  7};
  8
  9#[derive(PartialEq, Eq)]
 10pub struct VmpPMat<D: Data, B: Backend> {
 11    data: D,
 12    n: usize,
 13    size: usize,
 14    rows: usize,
 15    cols_in: usize,
 16    cols_out: usize,
 17    _phantom: PhantomData<B>,
 18}
 19
 20impl<D: DataRef, B: Backend> ZnxView for VmpPMat<D, B> {
 21    type Scalar = B::ScalarPrep;
 22}
 23
 24impl<D: Data, B: Backend> ZnxInfos for VmpPMat<D, B> {
 25    fn cols(&self) -> usize {
 26        self.cols_in
 27    }
 28
 29    fn rows(&self) -> usize {
 30        self.rows
 31    }
 32
 33    fn n(&self) -> usize {
 34        self.n
 35    }
 36
 37    fn size(&self) -> usize {
 38        self.size
 39    }
 40}
 41
 42impl<D: Data, B: Backend> DataView for VmpPMat<D, B> {
 43    type D = D;
 44    fn data(&self) -> &Self::D {
 45        &self.data
 46    }
 47}
 48
 49impl<D: Data, B: Backend> DataViewMut for VmpPMat<D, B> {
 50    fn data_mut(&mut self) -> &mut Self::D {
 51        &mut self.data
 52    }
 53}
 54
 55impl<D: Data, B: Backend> VmpPMat<D, B> {
 56    pub fn cols_in(&self) -> usize {
 57        self.cols_in
 58    }
 59
 60    pub fn cols_out(&self) -> usize {
 61        self.cols_out
 62    }
 63}
 64
 65impl<D: DataRef + From<Vec<u8>>, B: Backend> VmpPMat<D, B>
 66where
 67    B: VmpPMatAllocBytesImpl<B>,
 68{
 69    pub fn alloc(n: usize, rows: usize, cols_in: usize, cols_out: usize, size: usize) -> Self {
 70        let data: Vec<u8> = alloc_aligned(B::vmp_pmat_alloc_bytes_impl(
 71            n, rows, cols_in, cols_out, size,
 72        ));
 73        Self {
 74            data: data.into(),
 75            n,
 76            size,
 77            rows,
 78            cols_in,
 79            cols_out,
 80            _phantom: PhantomData,
 81        }
 82    }
 83
 84    pub fn from_bytes(n: usize, rows: usize, cols_in: usize, cols_out: usize, size: usize, bytes: impl Into<Vec<u8>>) -> Self {
 85        let data: Vec<u8> = bytes.into();
 86        assert!(data.len() == B::vmp_pmat_alloc_bytes_impl(n, rows, cols_in, cols_out, size));
 87        Self {
 88            data: data.into(),
 89            n,
 90            size,
 91            rows,
 92            cols_in,
 93            cols_out,
 94            _phantom: PhantomData,
 95        }
 96    }
 97}
 98
 99pub type VmpPMatOwned<B> = VmpPMat<Vec<u8>, B>;
100pub type VmpPMatRef<'a, B> = VmpPMat<&'a [u8], B>;
101
102pub trait VmpPMatToRef<B: Backend> {
103    fn to_ref(&self) -> VmpPMat<&[u8], B>;
104}
105
106impl<D: DataRef, B: Backend> VmpPMatToRef<B> for VmpPMat<D, B> {
107    fn to_ref(&self) -> VmpPMat<&[u8], B> {
108        VmpPMat {
109            data: self.data.as_ref(),
110            n: self.n,
111            rows: self.rows,
112            cols_in: self.cols_in,
113            cols_out: self.cols_out,
114            size: self.size,
115            _phantom: std::marker::PhantomData,
116        }
117    }
118}
119
120pub trait VmpPMatToMut<B: Backend> {
121    fn to_mut(&mut self) -> VmpPMat<&mut [u8], B>;
122}
123
124impl<D: DataMut, B: Backend> VmpPMatToMut<B> for VmpPMat<D, B> {
125    fn to_mut(&mut self) -> VmpPMat<&mut [u8], B> {
126        VmpPMat {
127            data: self.data.as_mut(),
128            n: self.n,
129            rows: self.rows,
130            cols_in: self.cols_in,
131            cols_out: self.cols_out,
132            size: self.size,
133            _phantom: std::marker::PhantomData,
134        }
135    }
136}
137
138impl<D: Data, B: Backend> VmpPMat<D, B> {
139    pub fn from_data(data: D, n: usize, rows: usize, cols_in: usize, cols_out: usize, size: usize) -> Self {
140        Self {
141            data,
142            n,
143            rows,
144            cols_in,
145            cols_out,
146            size,
147            _phantom: PhantomData,
148        }
149    }
150}