1use poulpy_hal::layouts::{Backend, Data, DataMut, DataRef, Module, Scratch};
  2
  3use crate::layouts::{
  4    Base2K, Degree, Dnum, Dsize, GGLWEInfos, GLWEInfos, LWEInfos, LWESwitchingKeyToRef, Rank, TorusPrecision,
  5    prepared::{
  6        GLWESwitchingKeyPrepare, GLWESwitchingKeyPrepared, GLWESwitchingKeyPreparedAlloc, GLWESwitchingKeyPreparedToMut,
  7        GLWESwitchingKeyPreparedToRef,
  8    },
  9};
 10
 11#[derive(PartialEq, Eq)]
 12pub struct LWESwitchingKeyPrepared<D: Data, B: Backend>(pub(crate) GLWESwitchingKeyPrepared<D, B>);
 13
 14impl<D: Data, B: Backend> LWEInfos for LWESwitchingKeyPrepared<D, B> {
 15    fn base2k(&self) -> Base2K {
 16        self.0.base2k()
 17    }
 18
 19    fn k(&self) -> TorusPrecision {
 20        self.0.k()
 21    }
 22
 23    fn n(&self) -> Degree {
 24        self.0.n()
 25    }
 26
 27    fn size(&self) -> usize {
 28        self.0.size()
 29    }
 30}
 31impl<D: Data, B: Backend> GLWEInfos for LWESwitchingKeyPrepared<D, B> {
 32    fn rank(&self) -> Rank {
 33        self.rank_out()
 34    }
 35}
 36
 37impl<D: Data, B: Backend> GGLWEInfos for LWESwitchingKeyPrepared<D, B> {
 38    fn dsize(&self) -> Dsize {
 39        self.0.dsize()
 40    }
 41
 42    fn rank_in(&self) -> Rank {
 43        self.0.rank_in()
 44    }
 45
 46    fn rank_out(&self) -> Rank {
 47        self.0.rank_out()
 48    }
 49
 50    fn dnum(&self) -> Dnum {
 51        self.0.dnum()
 52    }
 53}
 54
 55pub trait LWESwitchingKeyPreparedAlloc<B: Backend>
 56where
 57    Self: GLWESwitchingKeyPreparedAlloc<B>,
 58{
 59    fn lwe_switching_key_prepared_alloc(
 60        &self,
 61        base2k: Base2K,
 62        k: TorusPrecision,
 63        dnum: Dnum,
 64    ) -> LWESwitchingKeyPrepared<Vec<u8>, B> {
 65        LWESwitchingKeyPrepared(self.glwe_switching_key_prepared_alloc(base2k, k, Rank(1), Rank(1), dnum, Dsize(1)))
 66    }
 67
 68    fn lwe_switching_key_prepared_alloc_from_infos<A>(&self, infos: &A) -> LWESwitchingKeyPrepared<Vec<u8>, B>
 69    where
 70        A: GGLWEInfos,
 71    {
 72        debug_assert_eq!(
 73            infos.dsize().0,
 74            1,
 75            "dsize > 1 is not supported for LWESwitchingKey"
 76        );
 77        debug_assert_eq!(
 78            infos.rank_in().0,
 79            1,
 80            "rank_in > 1 is not supported for LWESwitchingKey"
 81        );
 82        debug_assert_eq!(
 83            infos.rank_out().0,
 84            1,
 85            "rank_out > 1 is not supported for LWESwitchingKey"
 86        );
 87        self.lwe_switching_key_prepared_alloc(infos.base2k(), infos.k(), infos.dnum())
 88    }
 89
 90    fn lwe_switching_key_prepared_alloc_bytes(&self, base2k: Base2K, k: TorusPrecision, dnum: Dnum) -> usize {
 91        self.glwe_switching_key_prepared_alloc_bytes(base2k, k, Rank(1), Rank(1), dnum, Dsize(1))
 92    }
 93
 94    fn lwe_switching_key_prepared_alloc_bytes_from_infos<A>(&self, infos: &A) -> usize
 95    where
 96        A: GGLWEInfos,
 97    {
 98        debug_assert_eq!(
 99            infos.dsize().0,
100            1,
101            "dsize > 1 is not supported for LWESwitchingKey"
102        );
103        debug_assert_eq!(
104            infos.rank_in().0,
105            1,
106            "rank_in > 1 is not supported for LWESwitchingKey"
107        );
108        debug_assert_eq!(
109            infos.rank_out().0,
110            1,
111            "rank_out > 1 is not supported for LWESwitchingKey"
112        );
113        self.lwe_switching_key_prepared_alloc_bytes(infos.base2k(), infos.k(), infos.dnum())
114    }
115}
116
117impl<B: Backend> LWESwitchingKeyPreparedAlloc<B> for Module<B> where Self: GLWESwitchingKeyPreparedAlloc<B> {}
118
119impl<B: Backend> LWESwitchingKeyPrepared<Vec<u8>, B>
120where
121    Module<B>: LWESwitchingKeyPreparedAlloc<B>,
122{
123    pub fn alloc_from_infos<A>(module: &Module<B>, infos: &A) -> Self
124    where
125        A: GGLWEInfos,
126    {
127        module.lwe_switching_key_prepared_alloc_from_infos(infos)
128    }
129
130    pub fn alloc(module: &Module<B>, base2k: Base2K, k: TorusPrecision, dnum: Dnum) -> Self {
131        module.lwe_switching_key_prepared_alloc(base2k, k, dnum)
132    }
133
134    pub fn alloc_bytes_from_infos<A>(module: &Module<B>, infos: &A) -> usize
135    where
136        A: GGLWEInfos,
137    {
138        module.lwe_switching_key_prepared_alloc_bytes_from_infos(infos)
139    }
140
141    pub fn alloc_bytes(module: &Module<B>, base2k: Base2K, k: TorusPrecision, dnum: Dnum) -> usize {
142        module.lwe_switching_key_prepared_alloc_bytes(base2k, k, dnum)
143    }
144}
145
146pub trait LWESwitchingKeyPrepare<B: Backend>
147where
148    Self: GLWESwitchingKeyPrepare<B>,
149{
150    fn lwe_switching_key_prepare_tmp_bytes<A>(&self, infos: &A)
151    where
152        A: GGLWEInfos,
153    {
154        self.glwe_switching_key_prepare_tmp_bytes(infos);
155    }
156    fn lwe_switching_key_prepare<R, O>(&self, res: &mut R, other: &O, scratch: &mut Scratch<B>)
157    where
158        R: LWESwitchingKeyPreparedToMut<B>,
159        O: LWESwitchingKeyToRef,
160    {
161        self.glwe_switching_prepare(&mut res.to_mut().0, &other.to_ref().0, scratch);
162    }
163}
164
165impl<B: Backend> LWESwitchingKeyPrepare<B> for Module<B> where Self: GLWESwitchingKeyPrepare<B> {}
166
167impl<B: Backend> LWESwitchingKeyPrepared<Vec<u8>, B> {
168    pub fn prepare_tmp_bytes<A>(&self, module: &Module<B>, infos: &A)
169    where
170        A: GGLWEInfos,
171        Module<B>: LWESwitchingKeyPrepare<B>,
172    {
173        module.lwe_switching_key_prepare_tmp_bytes(infos);
174    }
175}
176
177impl<D: DataMut, B: Backend> LWESwitchingKeyPrepared<D, B> {
178    fn prepare<O>(&mut self, module: &Module<B>, other: &O, scratch: &mut Scratch<B>)
179    where
180        O: LWESwitchingKeyToRef,
181        Module<B>: LWESwitchingKeyPrepare<B>,
182    {
183        module.lwe_switching_key_prepare(self, other, scratch);
184    }
185}
186
187pub trait LWESwitchingKeyPreparedToRef<B: Backend> {
188    fn to_ref(&self) -> LWESwitchingKeyPrepared<&[u8], B>;
189}
190
191impl<D: DataRef, B: Backend> LWESwitchingKeyPreparedToRef<B> for LWESwitchingKeyPrepared<D, B>
192where
193    GLWESwitchingKeyPrepared<D, B>: GLWESwitchingKeyPreparedToRef<B>,
194{
195    fn to_ref(&self) -> LWESwitchingKeyPrepared<&[u8], B> {
196        LWESwitchingKeyPrepared(self.0.to_ref())
197    }
198}
199
200pub trait LWESwitchingKeyPreparedToMut<B: Backend> {
201    fn to_mut(&mut self) -> LWESwitchingKeyPrepared<&mut [u8], B>;
202}
203
204impl<D: DataMut, B: Backend> LWESwitchingKeyPreparedToMut<B> for LWESwitchingKeyPrepared<D, B>
205where
206    GLWESwitchingKeyPrepared<D, B>: GLWESwitchingKeyPreparedToMut<B>,
207{
208    fn to_mut(&mut self) -> LWESwitchingKeyPrepared<&mut [u8], B> {
209        LWESwitchingKeyPrepared(self.0.to_mut())
210    }
211}