Traits reduction, file + structs renaming

poulpy-core/src/layouts/gglwe.rs

@@ -0,0 +1,331 @@
+use poulpy_hal::{
+    layouts::{Data, DataMut, DataRef, FillUniform, MatZnx, MatZnxToMut, MatZnxToRef, ReaderFrom, WriterTo, ZnxInfos},
+    source::Source,
+};
+
+use crate::layouts::{Base2K, Degree, Dnum, Dsize, GLWE, GLWEInfos, LWEInfos, Rank, TorusPrecision};
+use byteorder::{LittleEndian, ReadBytesExt, WriteBytesExt};
+
+use std::fmt;
+
+pub trait GGLWEInfos
+where
+    Self: GLWEInfos,
+{
+    fn dnum(&self) -> Dnum;
+    fn dsize(&self) -> Dsize;
+    fn rank_in(&self) -> Rank;
+    fn rank_out(&self) -> Rank;
+    fn gglwe_layout(&self) -> GGLWELayout {
+        GGLWELayout {
+            n: self.n(),
+            base2k: self.base2k(),
+            k: self.k(),
+            rank_in: self.rank_in(),
+            rank_out: self.rank_out(),
+            dsize: self.dsize(),
+            dnum: self.dnum(),
+        }
+    }
+}
+
+pub trait SetGGLWEInfos {
+    fn set_dsize(&mut self, dsize: usize);
+}
+
+#[derive(PartialEq, Eq, Copy, Clone, Debug)]
+pub struct GGLWELayout {
+    pub n: Degree,
+    pub base2k: Base2K,
+    pub k: TorusPrecision,
+    pub rank_in: Rank,
+    pub rank_out: Rank,
+    pub dnum: Dnum,
+    pub dsize: Dsize,
+}
+
+impl LWEInfos for GGLWELayout {
+    fn base2k(&self) -> Base2K {
+        self.base2k
+    }
+
+    fn k(&self) -> TorusPrecision {
+        self.k
+    }
+
+    fn n(&self) -> Degree {
+        self.n
+    }
+}
+
+impl GLWEInfos for GGLWELayout {
+    fn rank(&self) -> Rank {
+        self.rank_out
+    }
+}
+
+impl GGLWEInfos for GGLWELayout {
+    fn rank_in(&self) -> Rank {
+        self.rank_in
+    }
+
+    fn dsize(&self) -> Dsize {
+        self.dsize
+    }
+
+    fn rank_out(&self) -> Rank {
+        self.rank_out
+    }
+
+    fn dnum(&self) -> Dnum {
+        self.dnum
+    }
+}
+
+#[derive(PartialEq, Eq, Clone)]
+pub struct GGLWE<D: Data> {
+    pub(crate) data: MatZnx<D>,
+    pub(crate) k: TorusPrecision,
+    pub(crate) base2k: Base2K,
+    pub(crate) dsize: Dsize,
+}
+
+impl<D: Data> LWEInfos for GGLWE<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 GGLWE<D> {
+    fn rank(&self) -> Rank {
+        self.rank_out()
+    }
+}
+
+impl<D: Data> GGLWEInfos for GGLWE<D> {
+    fn rank_in(&self) -> Rank {
+        Rank(self.data.cols_in() as u32)
+    }
+
+    fn rank_out(&self) -> Rank {
+        Rank(self.data.cols_out() as u32 - 1)
+    }
+
+    fn dsize(&self) -> Dsize {
+        self.dsize
+    }
+
+    fn dnum(&self) -> Dnum {
+        Dnum(self.data.rows() as u32)
+    }
+}
+
+impl<D: DataRef> GGLWE<D> {
+    pub fn data(&self) -> &MatZnx<D> {
+        &self.data
+    }
+}
+
+impl<D: DataMut> GGLWE<D> {
+    pub fn data_mut(&mut self) -> &mut MatZnx<D> {
+        &mut self.data
+    }
+}
+
+impl<D: DataRef> fmt::Debug for GGLWE<D> {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        write!(f, "{self}")
+    }
+}
+
+impl<D: DataMut> FillUniform for GGLWE<D> {
+    fn fill_uniform(&mut self, log_bound: usize, source: &mut Source) {
+        self.data.fill_uniform(log_bound, source);
+    }
+}
+
+impl<D: DataRef> fmt::Display for GGLWE<D> {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        write!(
+            f,
+            "(GGLWE: k={} base2k={} dsize={}) {}",
+            self.k().0,
+            self.base2k().0,
+            self.dsize().0,
+            self.data
+        )
+    }
+}
+
+impl<D: DataRef> GGLWE<D> {
+    pub fn at(&self, row: usize, col: usize) -> GLWE<&[u8]> {
+        GLWE {
+            k: self.k,
+            base2k: self.base2k,
+            data: self.data.at(row, col),
+        }
+    }
+}
+
+impl<D: DataMut> GGLWE<D> {
+    pub fn at_mut(&mut self, row: usize, col: usize) -> GLWE<&mut [u8]> {
+        GLWE {
+            k: self.k,
+            base2k: self.base2k,
+            data: self.data.at_mut(row, col),
+        }
+    }
+}
+
+impl GGLWE<Vec<u8>> {
+    pub fn alloc_from_infos<A>(infos: &A) -> Self
+    where
+        A: GGLWEInfos,
+    {
+        Self::alloc(
+            infos.n(),
+            infos.base2k(),
+            infos.k(),
+            infos.rank_in(),
+            infos.rank_out(),
+            infos.dnum(),
+            infos.dsize(),
+        )
+    }
+
+    pub fn alloc(n: Degree, base2k: Base2K, k: TorusPrecision, rank_in: Rank, rank_out: Rank, dnum: Dnum, dsize: Dsize) -> Self {
+        let size: usize = k.0.div_ceil(base2k.0) as usize;
+        debug_assert!(
+            size as u32 > dsize.0,
+            "invalid gglwe: ceil(k/base2k): {size} <= dsize: {}",
+            dsize.0
+        );
+
+        assert!(
+            dnum.0 * dsize.0 <= size as u32,
+            "invalid gglwe: dnum: {} * dsize:{} > ceil(k/base2k): {size}",
+            dnum.0,
+            dsize.0,
+        );
+
+        GGLWE {
+            data: MatZnx::alloc(
+                n.into(),
+                dnum.into(),
+                rank_in.into(),
+                (rank_out + 1).into(),
+                k.0.div_ceil(base2k.0) as usize,
+            ),
+            k,
+            base2k,
+            dsize,
+        }
+    }
+
+    pub fn bytes_of_from_infos<A>(infos: &A) -> usize
+    where
+        A: GGLWEInfos,
+    {
+        Self::bytes_of(
+            infos.n(),
+            infos.base2k(),
+            infos.k(),
+            infos.rank_in(),
+            infos.rank_out(),
+            infos.dnum(),
+            infos.dsize(),
+        )
+    }
+
+    pub fn bytes_of(
+        n: Degree,
+        base2k: Base2K,
+        k: TorusPrecision,
+        rank_in: Rank,
+        rank_out: Rank,
+        dnum: Dnum,
+        dsize: Dsize,
+    ) -> usize {
+        let size: usize = k.0.div_ceil(base2k.0) as usize;
+        debug_assert!(
+            size as u32 > dsize.0,
+            "invalid gglwe: ceil(k/base2k): {size} <= dsize: {}",
+            dsize.0
+        );
+
+        assert!(
+            dnum.0 * dsize.0 <= size as u32,
+            "invalid gglwe: dnum: {} * dsize:{} > ceil(k/base2k): {size}",
+            dnum.0,
+            dsize.0,
+        );
+
+        MatZnx::bytes_of(
+            n.into(),
+            dnum.into(),
+            rank_in.into(),
+            (rank_out + 1).into(),
+            k.0.div_ceil(base2k.0) as usize,
+        )
+    }
+}
+
+pub trait GGLWEToMut {
+    fn to_mut(&mut self) -> GGLWE<&mut [u8]>;
+}
+
+impl<D: DataMut> GGLWEToMut for GGLWE<D> {
+    fn to_mut(&mut self) -> GGLWE<&mut [u8]> {
+        GGLWE {
+            k: self.k(),
+            base2k: self.base2k(),
+            dsize: self.dsize(),
+            data: self.data.to_mut(),
+        }
+    }
+}
+
+pub trait GGLWEToRef {
+    fn to_ref(&self) -> GGLWE<&[u8]>;
+}
+
+impl<D: DataRef> GGLWEToRef for GGLWE<D> {
+    fn to_ref(&self) -> GGLWE<&[u8]> {
+        GGLWE {
+            k: self.k(),
+            base2k: self.base2k(),
+            dsize: self.dsize(),
+            data: self.data.to_ref(),
+        }
+    }
+}
+
+impl<D: DataMut> ReaderFrom for GGLWE<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.dsize = Dsize(reader.read_u32::<LittleEndian>()?);
+        self.data.read_from(reader)
+    }
+}
+
+impl<D: DataRef> WriterTo for GGLWE<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)?;
+        writer.write_u32::<LittleEndian>(self.dsize.0)?;
+        self.data.write_to(writer)
+    }
+}