updated repo for publishing (#74)

poulpy-core/src/layouts/gglwe_tsk.rs

@@ -0,0 +1,148 @@
+use poulpy_backend::hal::{
+    api::{FillUniform, Reset},
+    layouts::{Data, DataMut, DataRef, MatZnx, ReaderFrom, WriterTo},
+    source::Source,
+};
+
+use crate::layouts::{GGLWESwitchingKey, Infos};
+use byteorder::{LittleEndian, ReadBytesExt, WriteBytesExt};
+
+use std::fmt;
+
+#[derive(PartialEq, Eq, Clone)]
+pub struct GGLWETensorKey<D: Data> {
+    pub(crate) keys: Vec<GGLWESwitchingKey<D>>,
+}
+
+impl<D: DataRef> fmt::Debug for GGLWETensorKey<D> {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        write!(f, "{}", self)
+    }
+}
+
+impl<D: DataMut> FillUniform for GGLWETensorKey<D> {
+    fn fill_uniform(&mut self, source: &mut Source) {
+        self.keys
+            .iter_mut()
+            .for_each(|key: &mut GGLWESwitchingKey<D>| key.fill_uniform(source))
+    }
+}
+
+impl<D: DataMut> Reset for GGLWETensorKey<D>
+where
+    MatZnx<D>: Reset,
+{
+    fn reset(&mut self) {
+        self.keys
+            .iter_mut()
+            .for_each(|key: &mut GGLWESwitchingKey<D>| key.reset())
+    }
+}
+
+impl<D: DataRef> fmt::Display for GGLWETensorKey<D> {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        writeln!(f, "(GLWETensorKey)",)?;
+        for (i, key) in self.keys.iter().enumerate() {
+            write!(f, "{}: {}", i, key)?;
+        }
+        Ok(())
+    }
+}
+
+impl GGLWETensorKey<Vec<u8>> {
+    pub fn alloc(n: usize, basek: usize, k: usize, rows: usize, digits: usize, rank: usize) -> Self {
+        let mut keys: Vec<GGLWESwitchingKey<Vec<u8>>> = Vec::new();
+        let pairs: usize = (((rank + 1) * rank) >> 1).max(1);
+        (0..pairs).for_each(|_| {
+            keys.push(GGLWESwitchingKey::alloc(n, basek, k, rows, digits, 1, rank));
+        });
+        Self { keys }
+    }
+
+    pub fn bytes_of(n: usize, basek: usize, k: usize, rows: usize, digits: usize, rank: usize) -> usize {
+        let pairs: usize = (((rank + 1) * rank) >> 1).max(1);
+        pairs * GGLWESwitchingKey::<Vec<u8>>::bytes_of(n, basek, k, rows, digits, 1, rank)
+    }
+}
+
+impl<D: Data> Infos for GGLWETensorKey<D> {
+    type Inner = MatZnx<D>;
+
+    fn inner(&self) -> &Self::Inner {
+        self.keys[0].inner()
+    }
+
+    fn basek(&self) -> usize {
+        self.keys[0].basek()
+    }
+
+    fn k(&self) -> usize {
+        self.keys[0].k()
+    }
+}
+
+impl<D: Data> GGLWETensorKey<D> {
+    pub fn rank(&self) -> usize {
+        self.keys[0].rank()
+    }
+
+    pub fn rank_in(&self) -> usize {
+        self.keys[0].rank_in()
+    }
+
+    pub fn rank_out(&self) -> usize {
+        self.keys[0].rank_out()
+    }
+
+    pub fn digits(&self) -> usize {
+        self.keys[0].digits()
+    }
+}
+
+impl<D: DataMut> GGLWETensorKey<D> {
+    // Returns a mutable reference to GLWESwitchingKey_{s}(s[i] * s[j])
+    pub fn at_mut(&mut self, mut i: usize, mut j: usize) -> &mut GGLWESwitchingKey<D> {
+        if i > j {
+            std::mem::swap(&mut i, &mut j);
+        };
+        let rank: usize = self.rank();
+        &mut self.keys[i * rank + j - (i * (i + 1) / 2)]
+    }
+}
+
+impl<D: DataRef> GGLWETensorKey<D> {
+    // Returns a reference to GLWESwitchingKey_{s}(s[i] * s[j])
+    pub fn at(&self, mut i: usize, mut j: usize) -> &GGLWESwitchingKey<D> {
+        if i > j {
+            std::mem::swap(&mut i, &mut j);
+        };
+        let rank: usize = self.rank();
+        &self.keys[i * rank + j - (i * (i + 1) / 2)]
+    }
+}
+
+impl<D: DataMut> ReaderFrom for GGLWETensorKey<D> {
+    fn read_from<R: std::io::Read>(&mut self, reader: &mut R) -> std::io::Result<()> {
+        let len: usize = reader.read_u64::<LittleEndian>()? as usize;
+        if self.keys.len() != len {
+            return Err(std::io::Error::new(
+                std::io::ErrorKind::InvalidData,
+                format!("self.keys.len()={} != read len={}", self.keys.len(), len),
+            ));
+        }
+        for key in &mut self.keys {
+            key.read_from(reader)?;
+        }
+        Ok(())
+    }
+}
+
+impl<D: DataRef> WriterTo for GGLWETensorKey<D> {
+    fn write_to<W: std::io::Write>(&self, writer: &mut W) -> std::io::Result<()> {
+        writer.write_u64::<LittleEndian>(self.keys.len() as u64)?;
+        for key in &self.keys {
+            key.write_to(writer)?;
+        }
+        Ok(())
+    }
+}