Traits reduction, file + structs renaming

poulpy-core/src/layouts/glwe.rs

@@ -0,0 +1,218 @@
+use poulpy_hal::{
+    layouts::{
+        Data, DataMut, DataRef, FillUniform, ReaderFrom, ToOwnedDeep, VecZnx, VecZnxToMut, VecZnxToRef, WriterTo, ZnxInfos,
+    },
+    source::Source,
+};
+
+use crate::layouts::{Base2K, Degree, LWEInfos, Rank, TorusPrecision};
+use byteorder::{LittleEndian, ReadBytesExt, WriteBytesExt};
+use std::fmt;
+
+pub trait GLWEInfos
+where
+    Self: LWEInfos,
+{
+    fn rank(&self) -> Rank;
+    fn glwe_layout(&self) -> GLWELayout {
+        GLWELayout {
+            n: self.n(),
+            base2k: self.base2k(),
+            k: self.k(),
+            rank: self.rank(),
+        }
+    }
+}
+
+pub trait SetGLWEInfos {
+    fn set_k(&mut self, k: TorusPrecision);
+    fn set_base2k(&mut self, base2k: Base2K);
+}
+
+#[derive(PartialEq, Eq, Copy, Clone, Debug)]
+pub struct GLWELayout {
+    pub n: Degree,
+    pub base2k: Base2K,
+    pub k: TorusPrecision,
+    pub rank: Rank,
+}
+
+impl LWEInfos for GLWELayout {
+    fn n(&self) -> Degree {
+        self.n
+    }
+
+    fn base2k(&self) -> Base2K {
+        self.base2k
+    }
+
+    fn k(&self) -> TorusPrecision {
+        self.k
+    }
+}
+
+impl GLWEInfos for GLWELayout {
+    fn rank(&self) -> Rank {
+        self.rank
+    }
+}
+
+#[derive(PartialEq, Eq, Clone)]
+pub struct GLWE<D: Data> {
+    pub(crate) data: VecZnx<D>,
+    pub(crate) base2k: Base2K,
+    pub(crate) k: TorusPrecision,
+}
+
+impl<D: DataMut> SetGLWEInfos for GLWE<D> {
+    fn set_base2k(&mut self, base2k: Base2K) {
+        self.base2k = base2k
+    }
+
+    fn set_k(&mut self, k: TorusPrecision) {
+        self.k = k
+    }
+}
+
+impl<D: DataRef> GLWE<D> {
+    pub fn data(&self) -> &VecZnx<D> {
+        &self.data
+    }
+}
+
+impl<D: DataMut> GLWE<D> {
+    pub fn data_mut(&mut self) -> &mut VecZnx<D> {
+        &mut self.data
+    }
+}
+
+impl<D: Data> LWEInfos for GLWE<D> {
+    fn base2k(&self) -> Base2K {
+        self.base2k
+    }
+
+    fn k(&self) -> TorusPrecision {
+        self.k
+    }
+
+    fn n(&self) -> Degree {
+        Degree(self.data.n() as u32)
+    }
+
+    fn size(&self) -> usize {
+        self.data.size()
+    }
+}
+
+impl<D: Data> GLWEInfos for GLWE<D> {
+    fn rank(&self) -> Rank {
+        Rank(self.data.cols() as u32 - 1)
+    }
+}
+
+impl<D: DataRef> ToOwnedDeep for GLWE<D> {
+    type Owned = GLWE<Vec<u8>>;
+    fn to_owned_deep(&self) -> Self::Owned {
+        GLWE {
+            data: self.data.to_owned_deep(),
+            k: self.k,
+            base2k: self.base2k,
+        }
+    }
+}
+
+impl<D: DataRef> fmt::Debug for GLWE<D> {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        write!(f, "{self}")
+    }
+}
+
+impl<D: DataRef> fmt::Display for GLWE<D> {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        write!(
+            f,
+            "GLWE: base2k={} k={}: {}",
+            self.base2k().0,
+            self.k().0,
+            self.data
+        )
+    }
+}
+
+impl<D: DataMut> FillUniform for GLWE<D> {
+    fn fill_uniform(&mut self, log_bound: usize, source: &mut Source) {
+        self.data.fill_uniform(log_bound, source);
+    }
+}
+
+impl GLWE<Vec<u8>> {
+    pub fn alloc_from_infos<A>(infos: &A) -> Self
+    where
+        A: GLWEInfos,
+    {
+        Self::alloc(infos.n(), infos.base2k(), infos.k(), infos.rank())
+    }
+
+    pub fn alloc(n: Degree, base2k: Base2K, k: TorusPrecision, rank: Rank) -> Self {
+        GLWE {
+            data: VecZnx::alloc(n.into(), (rank + 1).into(), k.0.div_ceil(base2k.0) as usize),
+            base2k,
+            k,
+        }
+    }
+
+    pub fn bytes_of_from_infos<A>(infos: &A) -> usize
+    where
+        A: GLWEInfos,
+    {
+        Self::bytes_of(infos.n(), infos.base2k(), infos.k(), infos.rank())
+    }
+
+    pub fn bytes_of(n: Degree, base2k: Base2K, k: TorusPrecision, rank: Rank) -> usize {
+        VecZnx::bytes_of(n.into(), (rank + 1).into(), k.0.div_ceil(base2k.0) as usize)
+    }
+}
+
+impl<D: DataMut> ReaderFrom for GLWE<D> {
+    fn read_from<R: std::io::Read>(&mut self, reader: &mut R) -> std::io::Result<()> {
+        self.k = TorusPrecision(reader.read_u32::<LittleEndian>()?);
+        self.base2k = Base2K(reader.read_u32::<LittleEndian>()?);
+        self.data.read_from(reader)
+    }
+}
+
+impl<D: DataRef> WriterTo for GLWE<D> {
+    fn write_to<W: std::io::Write>(&self, writer: &mut W) -> std::io::Result<()> {
+        writer.write_u32::<LittleEndian>(self.k.0)?;
+        writer.write_u32::<LittleEndian>(self.base2k.0)?;
+        self.data.write_to(writer)
+    }
+}
+
+pub trait GLWEToRef {
+    fn to_ref(&self) -> GLWE<&[u8]>;
+}
+
+impl<D: DataRef> GLWEToRef for GLWE<D> {
+    fn to_ref(&self) -> GLWE<&[u8]> {
+        GLWE {
+            k: self.k,
+            base2k: self.base2k,
+            data: self.data.to_ref(),
+        }
+    }
+}
+
+pub trait GLWEToMut {
+    fn to_mut(&mut self) -> GLWE<&mut [u8]>;
+}
+
+impl<D: DataMut> GLWEToMut for GLWE<D> {
+    fn to_mut(&mut self) -> GLWE<&mut [u8]> {
+        GLWE {
+            k: self.k,
+            base2k: self.base2k,
+            data: self.data.to_mut(),
+        }
+    }
+}