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cache a chunk while cloning to increase performance (?)

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Former-commit-id: 69c1fa67b13a8de49f2c73e9526f548779e988c1
This commit is contained in:
sxv20_ 2019-05-11 20:32:41 +01:00 committed by Joshua Barretto
parent a5db1fd0a6
commit a23f9d90ea
1 changed files with 19 additions and 3 deletions
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22
common/src/volumes/vol_map.rs
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@ -82,13 +82,29 @@ impl<V: Vox + Clone, S: VolSize, M> SampleVol for VolMap<V, S, M> {
let mut sample = Dyna::filled(range.size().map(|e| e as u32).into(), V::empty(), ());
let mut last_chunk_pos = self.pos_key(range.min);
let mut last_chunk = self.get_key(last_chunk_pos);
for pos in sample.iter_positions() {
let new_chunk_pos = self.pos_key(range.min + pos);
if last_chunk_pos != new_chunk_pos {
last_chunk = self.get_key(new_chunk_pos);
last_chunk_pos = new_chunk_pos;
}
sample
.set(
pos,
self.get(range.min + pos)
.map(|v| v.clone())
.unwrap_or(V::empty()),
if let Some(chunk) = last_chunk {
chunk
.get(Self::chunk_offs(range.min + pos))
.map(|v| v.clone())
.unwrap_or(V::empty())
// Fallback in case the chunk doesn't exist
} else {
self.get(range.min + pos)
.map(|v| v.clone())
.unwrap_or(V::empty())
},
)
.map_err(|err| VolMapErr::DynaErr(err))?;
}