Move compression helpers to common_net::msg::compression and experiment with more image formats at more site kinds.

Cargo.lock

@@ -5718,6 +5718,7 @@ dependencies = [
  "bincode",
  "flate2",
  "hashbrown",
+ "image",
  "serde",
  "specs",
  "specs-idvs",

common/net/Cargo.toml

@@ -16,6 +16,7 @@ common = {package = "veloren-common", path = "../../common"}
 
 bincode = "1.3.3"
 flate2 = "1.0.20"
+image = { version = "0.23.12", default-features = false, features = ["png", "jpeg"] }
 sum_type = "0.2.0"
 vek = { version = "=0.14.1", features = ["serde"] }
 tracing = { version = "0.1", default-features = false }

common/net/src/msg/compression.rs

@@ -0,0 +1,407 @@
+use common::{
+    terrain::{chonk::Chonk, Block, BlockKind, SpriteKind},
+    vol::{BaseVol, IntoVolIterator, ReadVol, RectVolSize, SizedVol, WriteVol},
+    volumes::vol_grid_2d::VolGrid2d,
+};
+use hashbrown::HashMap;
+use serde::{Deserialize, Serialize};
+use std::{
+    fmt::Debug,
+    io::{Read, Write},
+    marker::PhantomData,
+};
+use tracing::trace;
+use vek::*;
+
+/// Wrapper for compressed, serialized data (for stuff that doesn't use the
+/// default lz4 compression)
+#[derive(Clone, Debug, Serialize, Deserialize)]
+pub struct CompressedData<T> {
+    pub data: Vec<u8>,
+    compressed: bool,
+    _phantom: PhantomData<T>,
+}
+
+impl<T: Serialize> CompressedData<T> {
+    pub fn compress(t: &T, level: u32) -> Self {
+        use flate2::{write::DeflateEncoder, Compression};
+        let uncompressed = bincode::serialize(t)
+            .expect("bincode serialization can only fail if a byte limit is set");
+
+        if uncompressed.len() >= 32 {
+            const EXPECT_MSG: &str =
+                "compression only fails for fallible Read/Write impls (which Vec<u8> is not)";
+
+            let mut encoder = DeflateEncoder::new(Vec::new(), Compression::new(level));
+            encoder.write_all(&*uncompressed).expect(EXPECT_MSG);
+            let compressed = encoder.finish().expect(EXPECT_MSG);
+            trace!(
+                "compressed {}, uncompressed {}, ratio {}",
+                compressed.len(),
+                uncompressed.len(),
+                compressed.len() as f32 / uncompressed.len() as f32
+            );
+            CompressedData {
+                data: compressed,
+                compressed: true,
+                _phantom: PhantomData,
+            }
+        } else {
+            CompressedData {
+                data: uncompressed,
+                compressed: false,
+                _phantom: PhantomData,
+            }
+        }
+    }
+}
+
+impl<T: for<'a> Deserialize<'a>> CompressedData<T> {
+    pub fn decompress(&self) -> Option<T> {
+        if self.compressed {
+            let mut uncompressed = Vec::new();
+            flate2::read::DeflateDecoder::new(&*self.data)
+                .read_to_end(&mut uncompressed)
+                .ok()?;
+            bincode::deserialize(&*uncompressed).ok()
+        } else {
+            bincode::deserialize(&*self.data).ok()
+        }
+    }
+}
+
+/// Formula for packing voxel data into a 2d array
+pub trait PackingFormula {
+    fn dimensions(&self, dims: Vec3<u32>) -> (u32, u32);
+    fn index(&self, dims: Vec3<u32>, x: u32, y: u32, z: u32) -> (u32, u32);
+}
+
+/// A tall, thin image, with no wasted space, but which most image viewers don't
+/// handle well. Z levels increase from top to bottom, xy-slices are stacked
+/// vertically.
+pub struct TallPacking {
+    /// Making the borders go back and forth based on z-parity preserves spatial
+    /// locality better, but is more confusing to look at
+    pub flip_y: bool,
+}
+
+impl PackingFormula for TallPacking {
+    fn dimensions(&self, dims: Vec3<u32>) -> (u32, u32) { (dims.x, dims.y * dims.z) }
+
+    fn index(&self, dims: Vec3<u32>, x: u32, y: u32, z: u32) -> (u32, u32) {
+        let i = x;
+        let j0 = if self.flip_y {
+            if z % 2 == 0 { y } else { dims.y - y - 1 }
+        } else {
+            y
+        };
+        let j = z * dims.y + j0;
+        (i, j)
+    }
+}
+
+/// A grid of the z levels, left to right, top to bottom, like English prose.
+/// Convenient for visualizing terrain, but wastes space if the number of z
+/// levels isn't a perfect square.
+pub struct GridLtrPacking;
+
+impl PackingFormula for GridLtrPacking {
+    fn dimensions(&self, dims: Vec3<u32>) -> (u32, u32) {
+        let rootz = (dims.z as f64).sqrt().ceil() as u32;
+        (dims.x * rootz, dims.y * rootz)
+    }
+
+    fn index(&self, dims: Vec3<u32>, x: u32, y: u32, z: u32) -> (u32, u32) {
+        let rootz = (dims.z as f64).sqrt().ceil() as u32;
+        let i = x + (z % rootz) * dims.x;
+        let j = y + (z / rootz) * dims.y;
+        (i, j)
+    }
+}
+
+pub trait VoxelImageEncoding {
+    type Workspace;
+    type Output;
+    fn create(width: u32, height: u32) -> Self::Workspace;
+    fn put_solid(ws: &mut Self::Workspace, x: u32, y: u32, kind: BlockKind, rgb: Rgb<u8>);
+    fn put_sprite(ws: &mut Self::Workspace, x: u32, y: u32, kind: BlockKind, sprite: SpriteKind, ori: Option<u8>);
+    fn finish(ws: &Self::Workspace) -> Self::Output;
+}
+
+pub struct PngEncoding;
+
+impl VoxelImageEncoding for PngEncoding {
+    type Output = Vec<u8>;
+    type Workspace = image::ImageBuffer<image::Rgba<u8>, Vec<u8>>;
+
+    fn create(width: u32, height: u32) -> Self::Workspace {
+        use image::{ImageBuffer, Rgba};
+        ImageBuffer::<Rgba<u8>, Vec<u8>>::new(width, height)
+    }
+
+    fn put_solid(ws: &mut Self::Workspace, x: u32, y: u32, kind: BlockKind, rgb: Rgb<u8>) {
+        ws.put_pixel(x, y, image::Rgba([rgb.r, rgb.g, rgb.b, 255 - kind as u8]));
+    }
+
+    fn put_sprite(ws: &mut Self::Workspace, x: u32, y: u32, kind: BlockKind, sprite: SpriteKind, ori: Option<u8>) {
+        ws.put_pixel(x, y, image::Rgba([kind as u8, sprite as u8, ori.unwrap_or(0), 255]));
+    }
+
+    fn finish(ws: &Self::Workspace) -> Self::Output {
+        use image::codecs::png::{CompressionType, FilterType};
+        let mut buf = Vec::new();
+        let png = image::codecs::png::PngEncoder::new_with_quality(
+            &mut buf,
+            CompressionType::Fast,
+            FilterType::Up,
+        );
+        png.encode(
+            &*ws.as_raw(),
+            ws.width(),
+            ws.height(),
+            image::ColorType::Rgba8,
+        )
+        .unwrap();
+        buf
+    }
+}
+
+pub struct JpegEncoding;
+
+impl VoxelImageEncoding for JpegEncoding {
+    type Output = Vec<u8>;
+    type Workspace = image::ImageBuffer<image::Rgba<u8>, Vec<u8>>;
+
+    fn create(width: u32, height: u32) -> Self::Workspace {
+        use image::{ImageBuffer, Rgba};
+        ImageBuffer::<Rgba<u8>, Vec<u8>>::new(width, height)
+    }
+
+    fn put_solid(ws: &mut Self::Workspace, x: u32, y: u32, kind: BlockKind, rgb: Rgb<u8>) {
+        ws.put_pixel(x, y, image::Rgba([rgb.r, rgb.g, rgb.b, 255 - kind as u8]));
+    }
+
+    fn put_sprite(ws: &mut Self::Workspace, x: u32, y: u32, kind: BlockKind, sprite: SpriteKind, _: Option<u8>) {
+        ws.put_pixel(x, y, image::Rgba([kind as u8, sprite as u8, 255, 255]));
+    }
+
+    fn finish(ws: &Self::Workspace) -> Self::Output {
+        let mut buf = Vec::new();
+        let mut jpeg = image::codecs::jpeg::JpegEncoder::new_with_quality(&mut buf, 1);
+        jpeg.encode_image(ws).unwrap();
+        buf
+    }
+}
+
+pub struct MixedEncoding;
+
+impl VoxelImageEncoding for MixedEncoding {
+    type Output = (Vec<u8>, [usize; 3]);
+    type Workspace = (
+        image::ImageBuffer<image::Luma<u8>, Vec<u8>>,
+        image::ImageBuffer<image::Luma<u8>, Vec<u8>>,
+        image::ImageBuffer<image::Luma<u8>, Vec<u8>>,
+        image::ImageBuffer<image::Rgb<u8>, Vec<u8>>,
+    );
+
+    fn create(width: u32, height: u32) -> Self::Workspace {
+        use image::ImageBuffer;
+        (
+            ImageBuffer::new(width, height),
+            ImageBuffer::new(width, height),
+            ImageBuffer::new(width, height),
+            ImageBuffer::new(width, height),
+        )
+    }
+
+    fn put_solid(ws: &mut Self::Workspace, x: u32, y: u32, kind: BlockKind, rgb: Rgb<u8>) {
+        ws.0.put_pixel(x, y, image::Luma([kind as u8]));
+        ws.1.put_pixel(x, y, image::Luma([0]));
+        ws.2.put_pixel(x, y, image::Luma([0]));
+        ws.3.put_pixel(x, y, image::Rgb([rgb.r, rgb.g, rgb.b]));
+    }
+
+    fn put_sprite(ws: &mut Self::Workspace, x: u32, y: u32, kind: BlockKind, sprite: SpriteKind, ori: Option<u8>) {
+        ws.0.put_pixel(x, y, image::Luma([kind as u8]));
+        ws.1.put_pixel(x, y, image::Luma([sprite as u8]));
+        ws.2.put_pixel(x, y, image::Luma([ori.unwrap_or(0)]));
+        ws.3.put_pixel(x, y, image::Rgb([0; 3]));
+    }
+
+    fn finish(ws: &Self::Workspace) -> Self::Output {
+        let mut buf = Vec::new();
+        use image::codecs::png::{CompressionType, FilterType};
+        let mut indices = [0; 3];
+        let mut f = |x: &image::ImageBuffer<_, Vec<u8>>, i| {
+            let png = image::codecs::png::PngEncoder::new_with_quality(
+                &mut buf,
+                CompressionType::Fast,
+                FilterType::Up,
+            );
+            png.encode(
+                &*x.as_raw(),
+                x.width(),
+                x.height(),
+                image::ColorType::L8,
+            )
+            .unwrap();
+            indices[i] = buf.len();
+        };
+        f(&ws.0, 0);
+        f(&ws.1, 1);
+        f(&ws.2, 2);
+
+        let mut jpeg = image::codecs::jpeg::JpegEncoder::new_with_quality(&mut buf, 1);
+        jpeg.encode_image(&ws.3).unwrap();
+        (buf, indices)
+    }
+}
+
+pub fn image_terrain_chonk<S: RectVolSize, M: Clone, P: PackingFormula, VIE: VoxelImageEncoding>(
+    vie: VIE,
+    packing: P,
+    chonk: &Chonk<Block, S, M>,
+) -> VIE::Output {
+    image_terrain(
+        vie,
+        packing,
+        chonk,
+        Vec3::new(0, 0, chonk.get_min_z() as u32),
+        Vec3::new(S::RECT_SIZE.x, S::RECT_SIZE.y, chonk.get_max_z() as u32),
+    )
+}
+
+pub fn image_terrain_volgrid<
+    S: RectVolSize + Debug,
+    M: Clone + Debug,
+    P: PackingFormula,
+    VIE: VoxelImageEncoding,
+>(
+    vie: VIE,
+    packing: P,
+    volgrid: &VolGrid2d<Chonk<Block, S, M>>,
+) -> VIE::Output {
+    let mut lo = Vec3::broadcast(i32::MAX);
+    let mut hi = Vec3::broadcast(i32::MIN);
+    for (pos, chonk) in volgrid.iter() {
+        lo.x = lo.x.min(pos.x * S::RECT_SIZE.x as i32);
+        lo.y = lo.y.min(pos.y * S::RECT_SIZE.y as i32);
+        lo.z = lo.z.min(chonk.get_min_z());
+
+        hi.x = hi.x.max((pos.x + 1) * S::RECT_SIZE.x as i32);
+        hi.y = hi.y.max((pos.y + 1) * S::RECT_SIZE.y as i32);
+        hi.z = hi.z.max(chonk.get_max_z());
+    }
+
+    image_terrain(vie, packing, volgrid, lo.as_(), hi.as_())
+}
+
+pub fn image_terrain<
+    V: BaseVol<Vox = Block> + ReadVol,
+    P: PackingFormula,
+    VIE: VoxelImageEncoding,
+>(
+    _: VIE,
+    packing: P,
+    vol: &V,
+    lo: Vec3<u32>,
+    hi: Vec3<u32>,
+) -> VIE::Output {
+    let dims = hi - lo;
+
+    let (width, height) = packing.dimensions(dims);
+    let mut image = VIE::create(width, height);
+    for z in 0..dims.z {
+        for y in 0..dims.y {
+            for x in 0..dims.x {
+                let (i, j) = packing.index(dims, x, y, z);
+
+                let block = *vol
+                    .get(Vec3::new(x + lo.x, y + lo.y, z + lo.z).as_())
+                    .unwrap_or(&Block::empty());
+                match (block.get_color(), block.get_sprite()) {
+                    (Some(rgb), None) => {
+                        VIE::put_solid(&mut image, i, j, *block, rgb);
+                    },
+                    (None, Some(sprite)) => {
+                        VIE::put_sprite(&mut image, i, j, *block, sprite, block.get_ori());
+                    },
+                    _ => panic!(
+                        "attr being used for color vs sprite is mutually exclusive (and that's \
+                         required for this translation to be lossless), but there's no way to \
+                         guarantee that at the type level with Block's public API"
+                    ),
+                }
+            }
+        }
+    }
+
+    VIE::finish(&image)
+}
+
+pub struct MixedEncodingDenseSprites;
+
+impl VoxelImageEncoding for MixedEncodingDenseSprites {
+    type Output = (Vec<u8>, [usize; 3]);
+    type Workspace = (
+        image::ImageBuffer<image::Luma<u8>, Vec<u8>>,
+        Vec<u8>,
+        Vec<u8>,
+        image::ImageBuffer<image::Rgb<u8>, Vec<u8>>,
+    );
+
+    fn create(width: u32, height: u32) -> Self::Workspace {
+        use image::ImageBuffer;
+        (
+            ImageBuffer::new(width, height),
+            Vec::new(),
+            Vec::new(),
+            ImageBuffer::new(width, height),
+        )
+    }
+
+    fn put_solid(ws: &mut Self::Workspace, x: u32, y: u32, kind: BlockKind, rgb: Rgb<u8>) {
+        ws.0.put_pixel(x, y, image::Luma([kind as u8]));
+        ws.3.put_pixel(x, y, image::Rgb([rgb.r, rgb.g, rgb.b]));
+    }
+
+    fn put_sprite(ws: &mut Self::Workspace, x: u32, y: u32, kind: BlockKind, sprite: SpriteKind, ori: Option<u8>) {
+        ws.0.put_pixel(x, y, image::Luma([kind as u8]));
+        ws.1.push(sprite as u8);
+        ws.2.push(ori.unwrap_or(0));
+        ws.3.put_pixel(x, y, image::Rgb([0; 3]));
+    }
+
+    fn finish(ws: &Self::Workspace) -> Self::Output {
+        let mut buf = Vec::new();
+        use image::codecs::png::{CompressionType, FilterType};
+        let mut indices = [0; 3];
+        let mut f = |x: &image::ImageBuffer<_, Vec<u8>>, i| {
+            let png = image::codecs::png::PngEncoder::new_with_quality(
+                &mut buf,
+                CompressionType::Fast,
+                FilterType::Up,
+            );
+            png.encode(
+                &*x.as_raw(),
+                x.width(),
+                x.height(),
+                image::ColorType::L8,
+            )
+            .unwrap();
+            indices[i] = buf.len();
+        };
+        f(&ws.0, 0);
+        let mut g = |x: &[u8], i| {
+            buf.extend_from_slice(&*CompressedData::compress(&x, 4).data);
+            indices[i] = buf.len();
+        };
+
+        g(&ws.1, 1);
+        g(&ws.2, 2);
+
+        let mut jpeg = image::codecs::jpeg::JpegEncoder::new_with_quality(&mut buf, 1);
+        jpeg.encode_image(&ws.3).unwrap();
+        (buf, indices)
+    }
+}

common/net/src/msg/mod.rs

@@ -1,4 +1,5 @@
 pub mod client;
+pub mod compression;
 pub mod ecs_packet;
 pub mod server;
 pub mod world_msg;
@@ -6,6 +7,10 @@ pub mod world_msg;
 // Reexports
 pub use self::{
     client::{ClientGeneral, ClientMsg, ClientRegister, ClientType},
+    compression::{
+        CompressedData, GridLtrPacking, JpegEncoding, MixedEncoding, PackingFormula, PngEncoding,
+        TallPacking, VoxelImageEncoding,
+    },
     ecs_packet::EcsCompPacket,
     server::{
         CharacterInfo, DisconnectReason, InviteAnswer, Notification, PlayerInfo, PlayerListUpdate,
@@ -15,8 +20,6 @@ pub use self::{
 };
 use common::character::CharacterId;
 use serde::{Deserialize, Serialize};
-use std::marker::PhantomData;
-use tracing::trace;
 
 #[derive(Debug, Clone, Copy, PartialEq, Serialize, Deserialize)]
 pub enum PresenceKind {
@@ -44,60 +47,3 @@ pub fn validate_chat_msg(msg: &str) -> Result<(), ChatMsgValidationError> {
         Err(ChatMsgValidationError::TooLong)
     }
 }
-
-/// Wrapper for compressed, serialized data (for stuff that doesn't use the
-/// default lz4 compression)
-#[derive(Clone, Debug, Serialize, Deserialize)]
-pub struct CompressedData<T> {
-    pub data: Vec<u8>,
-    compressed: bool,
-    _phantom: PhantomData<T>,
-}
-
-impl<T: Serialize + for<'a> Deserialize<'a>> CompressedData<T> {
-    pub fn compress(t: &T, level: u32) -> Self {
-        use flate2::{write::DeflateEncoder, Compression};
-        use std::io::Write;
-        let uncompressed = bincode::serialize(t)
-            .expect("bincode serialization can only fail if a byte limit is set");
-
-        if uncompressed.len() >= 32 {
-            const EXPECT_MSG: &str =
-                "compression only fails for fallible Read/Write impls (which Vec<u8> is not)";
-
-            let mut encoder = DeflateEncoder::new(Vec::new(), Compression::new(level));
-            encoder.write_all(&*uncompressed).expect(EXPECT_MSG);
-            let compressed = encoder.finish().expect(EXPECT_MSG);
-            trace!(
-                "compressed {}, uncompressed {}, ratio {}",
-                compressed.len(),
-                uncompressed.len(),
-                compressed.len() as f32 / uncompressed.len() as f32
-            );
-            CompressedData {
-                data: compressed,
-                compressed: true,
-                _phantom: PhantomData,
-            }
-        } else {
-            CompressedData {
-                data: uncompressed,
-                compressed: false,
-                _phantom: PhantomData,
-            }
-        }
-    }
-
-    pub fn decompress(&self) -> Option<T> {
-        use std::io::Read;
-        if self.compressed {
-            let mut uncompressed = Vec::new();
-            flate2::read::DeflateDecoder::new(&*self.data)
-                .read_to_end(&mut uncompressed)
-                .ok()?;
-            bincode::deserialize(&*uncompressed).ok()
-        } else {
-            bincode::deserialize(&*self.data).ok()
-        }
-    }
-}

world/src/bin/chunk_compression_benchmarks.rs

@@ -7,9 +7,13 @@ use common::{
         vol_grid_2d::VolGrid2d,
     },
 };
+use common_net::msg::compression::{
+    image_terrain, image_terrain_chonk, image_terrain_volgrid, CompressedData, GridLtrPacking,
+    JpegEncoding, MixedEncoding, MixedEncodingDenseSprites, PackingFormula, PngEncoding,
+    TallPacking, VoxelImageEncoding,
+};
 use hashbrown::HashMap;
 use std::{
-    fmt::Debug,
     io::{Read, Write},
     sync::Arc,
     time::Instant,
@@ -17,6 +21,7 @@ use std::{
 use tracing::{debug, trace};
 use vek::*;
 use veloren_world::{
+    civ::SiteKind,
     sim::{FileOpts, WorldOpts, DEFAULT_WORLD_MAP},
     World,
 };
@@ -115,136 +120,18 @@ fn channelize_dyna<M: Clone, A: Access>(
     (blocks, r, g, b, sprites)
 }
 
-/// Formula for packing voxel data into a 2d array
-pub trait PackingFormula {
-    fn dimensions(&self, dims: Vec3<u32>) -> (u32, u32);
-    fn index(&self, dims: Vec3<u32>, x: u32, y: u32, z: u32) -> (u32, u32);
-}
+pub struct MixedEncodingSparseSprites;
 
-/// A tall, thin image, with no wasted space, but which most image viewers don't
-/// handle well. Z levels increase from top to bottom, xy-slices are stacked
-/// vertically.
-pub struct TallPacking {
-    /// Making the borders go back and forth based on z-parity preserves spatial
-    /// locality better, but is more confusing to look at
-    pub flip_y: bool,
-}
-
-impl PackingFormula for TallPacking {
-    fn dimensions(&self, dims: Vec3<u32>) -> (u32, u32) { (dims.x, dims.y * dims.z) }
-
-    fn index(&self, dims: Vec3<u32>, x: u32, y: u32, z: u32) -> (u32, u32) {
-        let i = x;
-        let j0 = if self.flip_y {
-            if z % 2 == 0 { y } else { dims.y - y - 1 }
-        } else {
-            y
-        };
-        let j = z * dims.y + j0;
-        (i, j)
-    }
-}
-
-/// A grid of the z levels, left to right, top to bottom, like English prose.
-/// Convenient for visualizing terrain, but wastes space if the number of z
-/// levels isn't a perfect square.
-pub struct GridLtrPacking;
-
-impl PackingFormula for GridLtrPacking {
-    fn dimensions(&self, dims: Vec3<u32>) -> (u32, u32) {
-        let rootz = (dims.z as f64).sqrt().ceil() as u32;
-        (dims.x * rootz, dims.y * rootz)
-    }
-
-    fn index(&self, dims: Vec3<u32>, x: u32, y: u32, z: u32) -> (u32, u32) {
-        let rootz = (dims.z as f64).sqrt().ceil() as u32;
-        let i = x + (z % rootz) * dims.x;
-        let j = y + (z / rootz) * dims.y;
-        (i, j)
-    }
-}
-
-pub trait VoxelImageEncoding {
-    type Workspace;
-    type Output;
-    fn create(width: u32, height: u32) -> Self::Workspace;
-    fn put_solid(ws: &mut Self::Workspace, x: u32, y: u32, kind: BlockKind, rgb: Rgb<u8>);
-    fn put_sprite(ws: &mut Self::Workspace, x: u32, y: u32, kind: BlockKind, sprite: SpriteKind);
-    fn finish(ws: &Self::Workspace) -> Self::Output;
-}
-
-pub struct PngEncoding;
-
-impl VoxelImageEncoding for PngEncoding {
-    type Output = Vec<u8>;
-    type Workspace = image::ImageBuffer<image::Rgba<u8>, Vec<u8>>;
-
-    fn create(width: u32, height: u32) -> Self::Workspace {
-        use image::{ImageBuffer, Rgba};
-        ImageBuffer::<Rgba<u8>, Vec<u8>>::new(width, height)
-    }
-
-    fn put_solid(ws: &mut Self::Workspace, x: u32, y: u32, kind: BlockKind, rgb: Rgb<u8>) {
-        ws.put_pixel(x, y, image::Rgba([rgb.r, rgb.g, rgb.b, 255 - kind as u8]));
-    }
-
-    fn put_sprite(ws: &mut Self::Workspace, x: u32, y: u32, kind: BlockKind, sprite: SpriteKind) {
-        ws.put_pixel(x, y, image::Rgba([kind as u8, sprite as u8, 255, 255]));
-    }
-
-    fn finish(ws: &Self::Workspace) -> Self::Output {
-        use image::codecs::png::{CompressionType, FilterType};
-        let mut buf = Vec::new();
-        let png = image::codecs::png::PngEncoder::new_with_quality(
-            &mut buf,
-            CompressionType::Fast,
-            FilterType::Up,
-        );
-        png.encode(
-            &*ws.as_raw(),
-            ws.width(),
-            ws.height(),
-            image::ColorType::Rgba8,
-        )
-        .unwrap();
-        buf
-    }
-}
-
-pub struct JpegEncoding;
-
-impl VoxelImageEncoding for JpegEncoding {
-    type Output = Vec<u8>;
-    type Workspace = image::ImageBuffer<image::Rgba<u8>, Vec<u8>>;
-
-    fn create(width: u32, height: u32) -> Self::Workspace {
-        use image::{ImageBuffer, Rgba};
-        ImageBuffer::<Rgba<u8>, Vec<u8>>::new(width, height)
-    }
-
-    fn put_solid(ws: &mut Self::Workspace, x: u32, y: u32, kind: BlockKind, rgb: Rgb<u8>) {
-        ws.put_pixel(x, y, image::Rgba([rgb.r, rgb.g, rgb.b, 255 - kind as u8]));
-    }
-
-    fn put_sprite(ws: &mut Self::Workspace, x: u32, y: u32, kind: BlockKind, sprite: SpriteKind) {
-        ws.put_pixel(x, y, image::Rgba([kind as u8, sprite as u8, 255, 255]));
-    }
-
-    fn finish(ws: &Self::Workspace) -> Self::Output {
-        let mut buf = Vec::new();
-        let mut jpeg = image::codecs::jpeg::JpegEncoder::new_with_quality(&mut buf, 1);
-        jpeg.encode_image(ws).unwrap();
-        buf
-    }
-}
-
-pub struct MixedEncoding;
-
-impl VoxelImageEncoding for MixedEncoding {
-    type Output = (Vec<u8>, usize);
+impl VoxelImageEncoding for MixedEncodingSparseSprites {
+    type Output = (
+        Vec<u8>,
+        usize,
+        CompressedData<HashMap<Vec2<u32>, (SpriteKind, u8)>>,
+    );
     type Workspace = (
-        image::ImageBuffer<image::LumaA<u8>, Vec<u8>>,
+        image::ImageBuffer<image::Luma<u8>, Vec<u8>>,
         image::ImageBuffer<image::Rgb<u8>, Vec<u8>>,
+        HashMap<Vec2<u32>, (SpriteKind, u8)>,
     );
 
     fn create(width: u32, height: u32) -> Self::Workspace {
@@ -252,17 +139,26 @@ impl VoxelImageEncoding for MixedEncoding {
         (
             ImageBuffer::new(width, height),
             ImageBuffer::new(width, height),
+            HashMap::new(),
         )
     }
 
     fn put_solid(ws: &mut Self::Workspace, x: u32, y: u32, kind: BlockKind, rgb: Rgb<u8>) {
-        ws.0.put_pixel(x, y, image::LumaA([kind as u8, 0]));
+        ws.0.put_pixel(x, y, image::Luma([kind as u8]));
         ws.1.put_pixel(x, y, image::Rgb([rgb.r, rgb.g, rgb.b]));
     }
 
-    fn put_sprite(ws: &mut Self::Workspace, x: u32, y: u32, kind: BlockKind, sprite: SpriteKind) {
-        ws.0.put_pixel(x, y, image::LumaA([kind as u8, sprite as u8]));
+    fn put_sprite(
+        ws: &mut Self::Workspace,
+        x: u32,
+        y: u32,
+        kind: BlockKind,
+        sprite: SpriteKind,
+        ori: Option<u8>,
+    ) {
+        ws.0.put_pixel(x, y, image::Luma([kind as u8]));
         ws.1.put_pixel(x, y, image::Rgb([0; 3]));
+        ws.2.insert(Vec2::new(x, y), (sprite, ori.unwrap_or(0)));
     }
 
     fn finish(ws: &Self::Workspace) -> Self::Output {
@@ -277,92 +173,16 @@ impl VoxelImageEncoding for MixedEncoding {
             &*ws.0.as_raw(),
             ws.0.width(),
             ws.0.height(),
-            image::ColorType::La8,
+            image::ColorType::L8,
         )
         .unwrap();
         let index = buf.len();
         let mut jpeg = image::codecs::jpeg::JpegEncoder::new_with_quality(&mut buf, 1);
         jpeg.encode_image(&ws.1).unwrap();
-        //println!("Mixed {} {}", index, buf.len());
-        (buf, index)
+        (buf, index, CompressedData::compress(&ws.2, 4))
     }
 }
 
-fn image_terrain_chonk<S: RectVolSize, M: Clone, P: PackingFormula, VIE: VoxelImageEncoding>(
-    vie: VIE,
-    packing: P,
-    chonk: &Chonk<Block, S, M>,
-) -> VIE::Output {
-    image_terrain(
-        vie,
-        packing,
-        chonk,
-        Vec3::new(0, 0, chonk.get_min_z() as u32),
-        Vec3::new(S::RECT_SIZE.x, S::RECT_SIZE.y, chonk.get_max_z() as u32),
-    )
-}
-
-fn image_terrain_volgrid<
-    S: RectVolSize + Debug,
-    M: Clone + Debug,
-    P: PackingFormula,
-    VIE: VoxelImageEncoding,
->(
-    vie: VIE,
-    packing: P,
-    volgrid: &VolGrid2d<Chonk<Block, S, M>>,
-) -> VIE::Output {
-    let mut lo = Vec3::broadcast(i32::MAX);
-    let mut hi = Vec3::broadcast(i32::MIN);
-    for (pos, chonk) in volgrid.iter() {
-        lo.x = lo.x.min(pos.x * S::RECT_SIZE.x as i32);
-        lo.y = lo.y.min(pos.y * S::RECT_SIZE.y as i32);
-        lo.z = lo.z.min(chonk.get_min_z());
-
-        hi.x = hi.x.max((pos.x + 1) * S::RECT_SIZE.x as i32);
-        hi.y = hi.y.max((pos.y + 1) * S::RECT_SIZE.y as i32);
-        hi.z = hi.z.max(chonk.get_max_z());
-    }
-    println!("{:?} {:?}", lo, hi);
-
-    image_terrain(vie, packing, volgrid, lo.as_(), hi.as_())
-}
-
-fn image_terrain<V: BaseVol<Vox = Block> + ReadVol, P: PackingFormula, VIE: VoxelImageEncoding>(
-    _: VIE,
-    packing: P,
-    vol: &V,
-    lo: Vec3<u32>,
-    hi: Vec3<u32>,
-) -> VIE::Output {
-    let dims = hi - lo;
-
-    let (width, height) = packing.dimensions(dims);
-    let mut image = VIE::create(width, height);
-    //println!("jpeg dims: {:?}", dims);
-    for z in 0..dims.z {
-        for y in 0..dims.y {
-            for x in 0..dims.x {
-                let (i, j) = packing.index(dims, x, y, z);
-                //println!("{:?} {:?}", (x, y, z), (i, j));
-
-                let block = *vol
-                    .get(Vec3::new(x + lo.x, y + lo.y, z + lo.z).as_())
-                    .unwrap_or(&Block::empty());
-                //println!("{} {} {} {:?}", x, y, z, block);
-                if let Some(rgb) = block.get_color() {
-                    VIE::put_solid(&mut image, i, j, *block, rgb);
-                } else {
-                    let sprite = block.get_sprite().unwrap();
-                    VIE::put_sprite(&mut image, i, j, *block, sprite);
-                }
-            }
-        }
-    }
-
-    VIE::finish(&image)
-}
-
 fn histogram_to_dictionary(histogram: &HashMap<Vec<u8>, usize>, dictionary: &mut Vec<u8>) {
     let mut tmp: Vec<(Vec<u8>, usize)> = histogram.iter().map(|(k, v)| (k.clone(), *v)).collect();
     tmp.sort_by_key(|(_, count)| *count);
@@ -389,192 +209,295 @@ fn main() {
         ..WorldOpts::default()
     });
     println!("Loaded world");
+    const HISTOGRAMS: bool = false;
     let mut histogram: HashMap<Vec<u8>, usize> = HashMap::new();
     let mut histogram2: HashMap<Vec<u8>, usize> = HashMap::new();
     let mut dictionary = vec![0xffu8; 1 << 16];
     let mut dictionary2 = vec![0xffu8; 1 << 16];
     let k = 32;
     let sz = world.sim().get_size();
-    let mut totals = [0.0; 10];
-    let mut total_timings = [0.0; 7];
-    let mut count = 0;
-    let mut volgrid = VolGrid2d::new().unwrap();
-    for (i, (x, y)) in Spiral2d::new()
-        .radius(20)
-        .map(|v| (v.x + sz.x as i32 / 2, v.y + sz.y as i32 / 2))
-        .enumerate()
-    {
-        let chunk = world.generate_chunk(index.as_index_ref(), Vec2::new(x as _, y as _), || false);
-        if let Ok((chunk, _)) = chunk {
-            let uncompressed = bincode::serialize(&chunk).unwrap();
-            for w in uncompressed.windows(k) {
-                *histogram.entry(w.to_vec()).or_default() += 1;
-            }
-            if i % 128 == 0 {
-                histogram_to_dictionary(&histogram, &mut dictionary);
-            }
-            let lz4chonk_pre = Instant::now();
-            let lz4_chonk = lz4_with_dictionary(&bincode::serialize(&chunk).unwrap(), &[]);
-            let lz4chonk_post = Instant::now();
-            //let lz4_dict_chonk = SerializedTerrainChunk::from_chunk(&chunk,
-            // &*dictionary);
 
-            let deflatechonk_pre = Instant::now();
-            let deflate_chonk = do_deflate_flate2(&bincode::serialize(&chunk).unwrap());
-            let deflatechonk_post = Instant::now();
+    let mut sites = Vec::new();
 
-            let dyna: Dyna<_, _, ColumnAccess> = chonk_to_dyna(&chunk, Block::empty());
-            let ser_dyna = bincode::serialize(&dyna).unwrap();
-            for w in ser_dyna.windows(k) {
-                *histogram2.entry(w.to_vec()).or_default() += 1;
-            }
-            if i % 128 == 0 {
-                histogram_to_dictionary(&histogram2, &mut dictionary2);
-            }
-            let lz4_dyna = lz4_with_dictionary(&*ser_dyna, &[]);
-            //let lz4_dict_dyna = lz4_with_dictionary(&*ser_dyna, &dictionary2);
-            let deflate_dyna = do_deflate(&*ser_dyna);
-            let deflate_channeled_dyna =
-                do_deflate_flate2(&bincode::serialize(&channelize_dyna(&dyna)).unwrap());
+    sites.push(("center", sz / 2));
+    sites.push((
+        "dungeon",
+        world
+            .civs()
+            .sites()
+            .find(|s| s.is_dungeon())
+            .map(|s| s.center.as_())
+            .unwrap(),
+    ));
+    sites.push((
+        "town",
+        world
+            .civs()
+            .sites()
+            .find(|s| s.is_settlement())
+            .map(|s| s.center.as_())
+            .unwrap(),
+    ));
+    sites.push((
+        "castle",
+        world
+            .civs()
+            .sites()
+            .find(|s| s.is_castle())
+            .map(|s| s.center.as_())
+            .unwrap(),
+    ));
+    sites.push((
+        "tree",
+        world
+            .civs()
+            .sites()
+            .find(|s| matches!(s.kind, SiteKind::Tree))
+            .map(|s| s.center.as_())
+            .unwrap(),
+    ));
 
-            let jpegchonkgrid_pre = Instant::now();
-            let jpegchonkgrid = image_terrain_chonk(JpegEncoding, GridLtrPacking, &chunk);
-            let jpegchonkgrid_post = Instant::now();
-
-            if false {
-                use std::fs::File;
-                let mut f = File::create(&format!("chonkjpegs/tmp_{}_{}.jpg", x, y)).unwrap();
-                f.write_all(&*jpegchonkgrid).unwrap();
-            }
-
-            let jpegchonktall_pre = Instant::now();
-            let jpegchonktall =
-                image_terrain_chonk(JpegEncoding, TallPacking { flip_y: false }, &chunk);
-            let jpegchonktall_post = Instant::now();
-
-            let jpegchonkflip_pre = Instant::now();
-            let jpegchonkflip =
-                image_terrain_chonk(JpegEncoding, TallPacking { flip_y: true }, &chunk);
-            let jpegchonkflip_post = Instant::now();
-
-            let mixedchonk_pre = Instant::now();
-            let mixedchonk =
-                image_terrain_chonk(MixedEncoding, TallPacking { flip_y: true }, &chunk);
-            let mixedchonk_post = Instant::now();
-
-            let pngchonk_pre = Instant::now();
-            let pngchonk = image_terrain_chonk(PngEncoding, GridLtrPacking, &chunk);
-            let pngchonk_post = Instant::now();
-
-            let n = uncompressed.len();
-            let sizes = [
-                lz4_chonk.len() as f32 / n as f32,
-                deflate_chonk.len() as f32 / n as f32,
-                lz4_dyna.len() as f32 / n as f32,
-                deflate_dyna.len() as f32 / n as f32,
-                deflate_channeled_dyna.len() as f32 / n as f32,
-                jpegchonkgrid.len() as f32 / n as f32,
-                jpegchonktall.len() as f32 / n as f32,
-                jpegchonkflip.len() as f32 / n as f32,
-                mixedchonk.0.len() as f32 / n as f32,
-                pngchonk.len() as f32 / n as f32,
-            ];
-            let best_idx = sizes
-                .iter()
-                .enumerate()
-                .fold((1.0, 0), |(best, i), (j, ratio)| {
-                    if ratio < &best {
-                        (*ratio, j)
-                    } else {
-                        (best, i)
+    for (sitename, sitepos) in sites.iter() {
+        let mut totals = [0.0; 12];
+        let mut total_timings = [0.0; 9];
+        let mut count = 0;
+        let mut volgrid = VolGrid2d::new().unwrap();
+        for (i, spiralpos) in Spiral2d::new()
+            .radius(7)
+            .map(|v| v + sitepos.as_())
+            .enumerate()
+        {
+            let chunk = world.generate_chunk(index.as_index_ref(), spiralpos, || false);
+            if let Ok((chunk, _)) = chunk {
+                let uncompressed = bincode::serialize(&chunk).unwrap();
+                if HISTOGRAMS {
+                    for w in uncompressed.windows(k) {
+                        *histogram.entry(w.to_vec()).or_default() += 1;
                     }
-                })
-                .1;
-            let timings = [
-                (lz4chonk_post - lz4chonk_pre).subsec_nanos(),
-                (deflatechonk_post - deflatechonk_pre).subsec_nanos(),
-                (jpegchonkgrid_post - jpegchonkgrid_pre).subsec_nanos(),
-                (jpegchonktall_post - jpegchonktall_pre).subsec_nanos(),
-                (jpegchonkflip_post - jpegchonkflip_pre).subsec_nanos(),
-                (mixedchonk_post - mixedchonk_pre).subsec_nanos(),
-                (pngchonk_post - pngchonk_pre).subsec_nanos(),
-            ];
-            trace!(
-                "{} {}: uncompressed: {}, {:?} {} {:?}",
-                x,
-                y,
-                n,
-                sizes,
-                best_idx,
-                timings
-            );
-            for j in 0..totals.len() {
-                totals[j] += sizes[j];
-            }
-            for j in 0..total_timings.len() {
-                total_timings[j] += timings[j] as f32;
-            }
-            count += 1;
-            let _ = volgrid.insert(Vec2::new(x, y), Arc::new(chunk));
+                    if i % 128 == 0 {
+                        histogram_to_dictionary(&histogram, &mut dictionary);
+                    }
+                }
+                let lz4chonk_pre = Instant::now();
+                let lz4_chonk = lz4_with_dictionary(&bincode::serialize(&chunk).unwrap(), &[]);
+                let lz4chonk_post = Instant::now();
+                //let lz4_dict_chonk = SerializedTerrainChunk::from_chunk(&chunk,
+                // &*dictionary);
 
-            if (1usize..10)
-                .into_iter()
-                .any(|i| (2 * i + 1) * (2 * i + 1) == count)
-            {
-                use std::fs::File;
-                let mut f = File::create(&format!("chonkjpegs/volgrid_{}.jpg", count)).unwrap();
-                let jpeg_volgrid = image_terrain_volgrid(JpegEncoding, GridLtrPacking, &volgrid);
-                f.write_all(&*jpeg_volgrid).unwrap();
+                let deflatechonk_pre = Instant::now();
+                let deflate_chonk = do_deflate_flate2(&bincode::serialize(&chunk).unwrap());
+                let deflatechonk_post = Instant::now();
+
+                let dyna: Dyna<_, _, ColumnAccess> = chonk_to_dyna(&chunk, Block::empty());
+                let ser_dyna = bincode::serialize(&dyna).unwrap();
+                if HISTOGRAMS {
+                    for w in ser_dyna.windows(k) {
+                        *histogram2.entry(w.to_vec()).or_default() += 1;
+                    }
+                    if i % 128 == 0 {
+                        histogram_to_dictionary(&histogram2, &mut dictionary2);
+                    }
+                }
+                let lz4_dyna = lz4_with_dictionary(&*ser_dyna, &[]);
+                //let lz4_dict_dyna = lz4_with_dictionary(&*ser_dyna, &dictionary2);
+                let deflate_dyna = do_deflate(&*ser_dyna);
+                let deflate_channeled_dyna =
+                    do_deflate_flate2(&bincode::serialize(&channelize_dyna(&dyna)).unwrap());
+
+                let jpegchonkgrid_pre = Instant::now();
+                let jpegchonkgrid = image_terrain_chonk(JpegEncoding, GridLtrPacking, &chunk);
+                let jpegchonkgrid_post = Instant::now();
+
+                if false {
+                    use std::fs::File;
+                    let mut f = File::create(&format!(
+                        "chonkjpegs/tmp_{}_{}.jpg",
+                        spiralpos.x, spiralpos.y
+                    ))
+                    .unwrap();
+                    f.write_all(&*jpegchonkgrid).unwrap();
+                }
+
+                let jpegchonktall_pre = Instant::now();
+                let jpegchonktall =
+                    image_terrain_chonk(JpegEncoding, TallPacking { flip_y: false }, &chunk);
+                let jpegchonktall_post = Instant::now();
+
+                let jpegchonkflip_pre = Instant::now();
+                let jpegchonkflip =
+                    image_terrain_chonk(JpegEncoding, TallPacking { flip_y: true }, &chunk);
+                let jpegchonkflip_post = Instant::now();
+
+                let mixedchonk_pre = Instant::now();
+                let mixedchonk =
+                    image_terrain_chonk(MixedEncoding, TallPacking { flip_y: true }, &chunk);
+                let mixedchonk_post = Instant::now();
+
+                let mixeddeflate = CompressedData::compress(&mixedchonk, 1);
+                let mixeddeflate_post = Instant::now();
+
+                let mixeddense_pre = Instant::now();
+                let mixeddense =
+                    image_terrain_chonk(MixedEncodingDenseSprites, TallPacking { flip_y: true }, &chunk);
+                let mixeddense_post = Instant::now();
+
+                let pngchonk_pre = Instant::now();
+                let pngchonk = image_terrain_chonk(PngEncoding, GridLtrPacking, &chunk);
+                let pngchonk_post = Instant::now();
+
+                let n = uncompressed.len();
+                let sizes = [
+                    lz4_chonk.len() as f32 / n as f32,
+                    deflate_chonk.len() as f32 / n as f32,
+                    lz4_dyna.len() as f32 / n as f32,
+                    deflate_dyna.len() as f32 / n as f32,
+                    deflate_channeled_dyna.len() as f32 / n as f32,
+                    jpegchonkgrid.len() as f32 / n as f32,
+                    jpegchonktall.len() as f32 / n as f32,
+                    jpegchonkflip.len() as f32 / n as f32,
+                    mixedchonk.0.len() as f32 / n as f32,
+                    mixeddeflate.data.len() as f32 / n as f32,
+                    mixeddense.0.len() as f32 / n as f32,
+                    pngchonk.len() as f32 / n as f32,
+                ];
+                let best_idx = sizes
+                    .iter()
+                    .enumerate()
+                    .fold((1.0, 0), |(best, i), (j, ratio)| {
+                        if ratio < &best {
+                            (*ratio, j)
+                        } else {
+                            (best, i)
+                        }
+                    })
+                    .1;
+                let timings = [
+                    (lz4chonk_post - lz4chonk_pre).subsec_nanos(),
+                    (deflatechonk_post - deflatechonk_pre).subsec_nanos(),
+                    (jpegchonkgrid_post - jpegchonkgrid_pre).subsec_nanos(),
+                    (jpegchonktall_post - jpegchonktall_pre).subsec_nanos(),
+                    (jpegchonkflip_post - jpegchonkflip_pre).subsec_nanos(),
+                    (mixedchonk_post - mixedchonk_pre).subsec_nanos(),
+                    (mixeddeflate_post - mixedchonk_pre).subsec_nanos(),
+                    (mixeddense_post - mixeddense_pre).subsec_nanos(),
+                    (pngchonk_post - pngchonk_pre).subsec_nanos(),
+                ];
+                trace!(
+                    "{} {}: uncompressed: {}, {:?} {} {:?}",
+                    spiralpos.x,
+                    spiralpos.y,
+                    n,
+                    sizes,
+                    best_idx,
+                    timings
+                );
+                for j in 0..totals.len() {
+                    totals[j] += sizes[j];
+                }
+                for j in 0..total_timings.len() {
+                    total_timings[j] += timings[j] as f32;
+                }
+                count += 1;
+                let _ = volgrid.insert(spiralpos, Arc::new(chunk));
+
+                if (1usize..20)
+                    .into_iter()
+                    .any(|i| (2 * i + 1) * (2 * i + 1) == count)
+                {
+                    use std::fs::File;
+                    let mut f =
+                        File::create(&format!("chonkjpegs/{}_{}.jpg", sitename, count)).unwrap();
+                    let jpeg_volgrid =
+                        image_terrain_volgrid(JpegEncoding, GridLtrPacking, &volgrid);
+                    f.write_all(&*jpeg_volgrid).unwrap();
+
+                    let mixedgrid_pre = Instant::now();
+                    let (mixed_volgrid, indices) =
+                        image_terrain_volgrid(MixedEncoding, GridLtrPacking, &volgrid);
+                    let mixedgrid_post = Instant::now();
+                    let seconds = (mixedgrid_post - mixedgrid_pre).as_secs_f64();
+                    println!(
+                        "Generated mixed_volgrid in {} seconds for {} chunks ({} avg)",
+                        seconds,
+                        count,
+                        seconds / count as f64,
+                    );
+                    for i in 0..4 {
+                        const FMT: [&str; 4] = ["png", "png", "png", "jpg"];
+                        let ranges: [_; 4] = [
+                            0..indices[0],
+                            indices[0]..indices[1],
+                            indices[1]..indices[2],
+                            indices[2]..mixed_volgrid.len(),
+                        ];
+                        let mut f = File::create(&format!(
+                            "chonkmixed/{}_{}_{}.{}",
+                            sitename, count, i, FMT[i]
+                        ))
+                        .unwrap();
+                        f.write_all(&mixed_volgrid[ranges[i].clone()]).unwrap();
+                    }
+                }
+            }
+            if count % 64 == 0 {
+                println!("Chunks processed ({}): {}\n", sitename, count);
+                println!("Average lz4_chonk: {}", totals[0] / count as f32);
+                println!("Average deflate_chonk: {}", totals[1] / count as f32);
+                println!("Average lz4_dyna: {}", totals[2] / count as f32);
+                println!("Average deflate_dyna: {}", totals[3] / count as f32);
+                println!(
+                    "Average deflate_channeled_dyna: {}",
+                    totals[4] / count as f32
+                );
+                println!("Average jpeggridchonk: {}", totals[5] / count as f32);
+                println!("Average jpegtallchonk: {}", totals[6] / count as f32);
+                println!("Average jpegflipchonk: {}", totals[7] / count as f32);
+                println!("Average mixedchonk: {}", totals[8] / count as f32);
+                println!("Average mixeddeflate: {}", totals[9] / count as f32);
+                println!("Average mixeddense: {}", totals[10] / count as f32);
+                println!("Average pngchonk: {}", totals[11] / count as f32);
+                println!("");
+                println!(
+                    "Average lz4_chonk nanos    : {:02}",
+                    total_timings[0] / count as f32
+                );
+                println!(
+                    "Average deflate_chonk nanos: {:02}",
+                    total_timings[1] / count as f32
+                );
+                println!(
+                    "Average jpeggridchonk nanos: {:02}",
+                    total_timings[2] / count as f32
+                );
+                println!(
+                    "Average jpegtallchonk nanos: {:02}",
+                    total_timings[3] / count as f32
+                );
+                println!(
+                    "Average jpegflipchonk nanos: {:02}",
+                    total_timings[4] / count as f32
+                );
+                println!(
+                    "Average mixedchonk nanos: {:02}",
+                    total_timings[5] / count as f32
+                );
+                println!(
+                    "Average mixeddeflate nanos: {:02}",
+                    total_timings[6] / count as f32
+                );
+                println!(
+                    "Average mixeddense nanos: {:02}",
+                    total_timings[7] / count as f32
+                );
+                println!(
+                    "Average pngchonk nanos: {:02}",
+                    total_timings[8] / count as f32
+                );
+                println!("-----");
+            }
+            if i % 256 == 0 {
+                histogram.clear();
             }
-        }
-        if i % 64 == 0 {
-            println!("Chunks processed: {}\n", count);
-            println!("Average lz4_chonk: {}", totals[0] / count as f32);
-            println!("Average deflate_chonk: {}", totals[1] / count as f32);
-            println!("Average lz4_dyna: {}", totals[2] / count as f32);
-            println!("Average deflate_dyna: {}", totals[3] / count as f32);
-            println!(
-                "Average deflate_channeled_dyna: {}",
-                totals[4] / count as f32
-            );
-            println!("Average jpeggridchonk: {}", totals[5] / count as f32);
-            println!("Average jpegtallchonk: {}", totals[6] / count as f32);
-            println!("Average jpegflipchonk: {}", totals[7] / count as f32);
-            println!("Average mixedchonk: {}", totals[8] / count as f32);
-            println!("Average pngchonk: {}", totals[9] / count as f32);
-            println!("");
-            println!(
-                "Average lz4_chonk nanos    : {:02}",
-                total_timings[0] / count as f32
-            );
-            println!(
-                "Average deflate_chonk nanos: {:02}",
-                total_timings[1] / count as f32
-            );
-            println!(
-                "Average jpeggridchonk nanos: {:02}",
-                total_timings[2] / count as f32
-            );
-            println!(
-                "Average jpegtallchonk nanos: {:02}",
-                total_timings[3] / count as f32
-            );
-            println!(
-                "Average jpegflipchonk nanos: {:02}",
-                total_timings[4] / count as f32
-            );
-            println!(
-                "Average mixedchonk nanos: {:02}",
-                total_timings[5] / count as f32
-            );
-            println!(
-                "Average pngchonk nanos: {:02}",
-                total_timings[6] / count as f32
-            );
-            println!("-----");
-        }
-        if i % 256 == 0 {
-            histogram.clear();
         }
     }
 }