1use std::marker::PhantomData;
  2
  3use crate::{
  4    alloc_aligned,
  5    api::{DataView, DataViewMut, ZnxInfos, ZnxView},
  6    layouts::{Backend, Data, DataMut, DataRef},
  7    oep::VmpPMatAllocBytesImpl,
  8};
  9
 10#[derive(PartialEq, Eq)]
 11pub struct VmpPMat<D: Data, B: Backend> {
 12    data: D,
 13    n: usize,
 14    size: usize,
 15    rows: usize,
 16    cols_in: usize,
 17    cols_out: usize,
 18    _phantom: PhantomData<B>,
 19}
 20
 21impl<D: DataRef, B: Backend> ZnxView for VmpPMat<D, B> {
 22    type Scalar = B::ScalarPrep;
 23}
 24
 25impl<D: Data, B: Backend> ZnxInfos for VmpPMat<D, B> {
 26    fn cols(&self) -> usize {
 27        self.cols_in
 28    }
 29
 30    fn rows(&self) -> usize {
 31        self.rows
 32    }
 33
 34    fn n(&self) -> usize {
 35        self.n
 36    }
 37
 38    fn size(&self) -> usize {
 39        self.size
 40    }
 41}
 42
 43impl<D: Data, B: Backend> DataView for VmpPMat<D, B> {
 44    type D = D;
 45    fn data(&self) -> &Self::D {
 46        &self.data
 47    }
 48}
 49
 50impl<D: Data, B: Backend> DataViewMut for VmpPMat<D, B> {
 51    fn data_mut(&mut self) -> &mut Self::D {
 52        &mut self.data
 53    }
 54}
 55
 56impl<D: Data, B: Backend> VmpPMat<D, B> {
 57    pub fn cols_in(&self) -> usize {
 58        self.cols_in
 59    }
 60
 61    pub fn cols_out(&self) -> usize {
 62        self.cols_out
 63    }
 64}
 65
 66impl<D: DataRef + From<Vec<u8>>, B: Backend> VmpPMat<D, B>
 67where
 68    B: VmpPMatAllocBytesImpl<B>,
 69{
 70    pub fn alloc(n: usize, rows: usize, cols_in: usize, cols_out: usize, size: usize) -> Self {
 71        let data: Vec<u8> = alloc_aligned(B::vmp_pmat_alloc_bytes_impl(
 72            n, rows, cols_in, cols_out, size,
 73        ));
 74        Self {
 75            data: data.into(),
 76            n,
 77            size,
 78            rows,
 79            cols_in,
 80            cols_out,
 81            _phantom: PhantomData,
 82        }
 83    }
 84
 85    pub fn from_bytes(n: usize, rows: usize, cols_in: usize, cols_out: usize, size: usize, bytes: impl Into<Vec<u8>>) -> Self {
 86        let data: Vec<u8> = bytes.into();
 87        assert!(data.len() == B::vmp_pmat_alloc_bytes_impl(n, rows, cols_in, cols_out, size));
 88        Self {
 89            data: data.into(),
 90            n,
 91            size,
 92            rows,
 93            cols_in,
 94            cols_out,
 95            _phantom: PhantomData,
 96        }
 97    }
 98}
 99
100pub type VmpPMatOwned<B> = VmpPMat<Vec<u8>, B>;
101pub type VmpPMatRef<'a, B> = VmpPMat<&'a [u8], B>;
102
103pub trait VmpPMatToRef<B: Backend> {
104    fn to_ref(&self) -> VmpPMat<&[u8], B>;
105}
106
107impl<D: DataRef, B: Backend> VmpPMatToRef<B> for VmpPMat<D, B> {
108    fn to_ref(&self) -> VmpPMat<&[u8], B> {
109        VmpPMat {
110            data: self.data.as_ref(),
111            n: self.n,
112            rows: self.rows,
113            cols_in: self.cols_in,
114            cols_out: self.cols_out,
115            size: self.size,
116            _phantom: std::marker::PhantomData,
117        }
118    }
119}
120
121pub trait VmpPMatToMut<B: Backend> {
122    fn to_mut(&mut self) -> VmpPMat<&mut [u8], B>;
123}
124
125impl<D: DataMut, B: Backend> VmpPMatToMut<B> for VmpPMat<D, B> {
126    fn to_mut(&mut self) -> VmpPMat<&mut [u8], B> {
127        VmpPMat {
128            data: self.data.as_mut(),
129            n: self.n,
130            rows: self.rows,
131            cols_in: self.cols_in,
132            cols_out: self.cols_out,
133            size: self.size,
134            _phantom: std::marker::PhantomData,
135        }
136    }
137}
138
139impl<D: Data, B: Backend> VmpPMat<D, B> {
140    pub fn from_data(data: D, n: usize, rows: usize, cols_in: usize, cols_out: usize, size: usize) -> Self {
141        Self {
142            data,
143            n,
144            rows,
145            cols_in,
146            cols_out,
147            size,
148            _phantom: PhantomData,
149        }
150    }
151}