Make the slicer generic allowing slicing into different formats

common/src/image.rs

@@ -39,8 +39,8 @@ impl Image {
         let half_kernel_size = kernel_size / 2;
 
         let mut kernel = vec![0.0; kernel_size];
-        for x in 0..kernel_size {
-            kernel[x] = gaussian((x - half_kernel_size) as f32, sigma);
+        for (i, e) in kernel.iter_mut().enumerate().take(kernel_size) {
+            *e = gaussian((i - half_kernel_size) as f32, sigma);
         }
 
         // Blur image horizontally
@@ -104,6 +104,6 @@ impl Image {
 }
 
 fn gaussian(x: f32, sigma: f32) -> f32 {
-    const ROOT_TWO_PI: f32 = 2.50662827463100050242;
+    const ROOT_TWO_PI: f32 = 2.506_628_3;
     (x.powi(2) / (2.0 * sigma.powi(2))).exp() / (sigma * ROOT_TWO_PI)
 }

common/src/misc.rs

@@ -1,11 +1,19 @@
-use crate::{config::SliceConfig, image::Image};
+use crate::config::SliceConfig;
 
-pub struct SliceResult<'a> {
-    pub layers: Vec<Image>,
+pub struct SliceResult<'a, Layer> {
+    pub layers: Vec<Layer>,
     pub slice_config: &'a SliceConfig,
 }
 
 pub struct Run {
     pub length: u64,
     pub value: u8,
 }
+
+pub trait EncodableLayer {
+    type Output: Send;
+
+    fn new() -> Self;
+    fn add_run(&mut self, length: u64, value: u8);
+    fn finish(self, layer: usize, config: &SliceConfig) -> Self::Output;
+}

goo_format/src/encoded_layer.rs

@@ -1,6 +1,9 @@
-use common::misc::Run;
+use common::{
+    config::SliceConfig,
+    misc::{EncodableLayer, Run},
+};
 
-use crate::layer_content::calculate_checksum;
+use crate::{layer_content::calculate_checksum, LayerContent};
 
 pub struct LayerEncoder {
     data: Vec<u8>,
@@ -102,6 +105,41 @@ impl LayerEncoder {
     }
 }
 
+impl EncodableLayer for LayerEncoder {
+    type Output = LayerContent;
+
+    fn new() -> Self {
+        Self::new()
+    }
+
+    fn add_run(&mut self, length: u64, value: u8) {
+        self.add_run(length, value);
+    }
+
+    fn finish(self, layer: usize, slice_config: &SliceConfig) -> Self::Output {
+        let (data, checksum) = self.finish();
+        let layer_exposure = if (layer as u32) < slice_config.first_layers {
+            &slice_config.first_exposure_config
+        } else {
+            &slice_config.exposure_config
+        };
+
+        LayerContent {
+            data,
+            checksum,
+            layer_position_z: slice_config.slice_height * (layer + 1) as f32,
+
+            layer_exposure_time: layer_exposure.exposure_time,
+            lift_distance: layer_exposure.lift_distance,
+            lift_speed: layer_exposure.lift_speed,
+            retract_distance: layer_exposure.retract_distance,
+            retract_speed: layer_exposure.retract_speed,
+            pause_position_z: slice_config.platform_size.z,
+            ..Default::default()
+        }
+    }
+}
+
 impl<'a> LayerDecoder<'a> {
     pub fn new(data: &'a [u8]) -> Self {
         Self {

goo_format/src/file.rs

@@ -5,7 +5,7 @@ use common::{
     serde::{Deserializer, Serializer},
 };
 
-use crate::{HeaderInfo, LayerContent, LayerEncoder, ENDING_STRING};
+use crate::{HeaderInfo, LayerContent, ENDING_STRING};
 
 pub struct File {
     pub header: HeaderInfo,
@@ -17,41 +17,11 @@ impl File {
         Self { header, layers }
     }
 
-    pub fn from_slice_result(result: SliceResult) -> Self {
-        let slice_config = result.slice_config;
-        let layers = result
-            .layers
-            .into_iter()
-            .enumerate()
-            .map(|(idx, layer)| {
-                let mut encoder = LayerEncoder::new();
-
-                for run in layer.runs() {
-                    encoder.add_run(run.length, run.value);
-                }
-
-                let (data, checksum) = encoder.finish();
-                let layer_exposure = if (idx as u32) < slice_config.first_layers {
-                    &slice_config.first_exposure_config
-                } else {
-                    &slice_config.exposure_config
-                };
-
-                LayerContent {
-                    data,
-                    checksum,
-                    layer_position_z: slice_config.slice_height * (idx + 1) as f32,
-
-                    layer_exposure_time: layer_exposure.exposure_time,
-                    lift_distance: layer_exposure.lift_distance,
-                    lift_speed: layer_exposure.lift_speed,
-                    retract_distance: layer_exposure.retract_distance,
-                    retract_speed: layer_exposure.retract_speed,
-                    pause_position_z: slice_config.platform_size.z,
-                    ..Default::default()
-                }
-            })
-            .collect::<Vec<_>>();
+    pub fn from_slice_result(result: SliceResult<LayerContent>) -> Self {
+        let SliceResult {
+            layers,
+            slice_config,
+        } = result;
 
         let layer_time = slice_config.exposure_config.exposure_time
             + slice_config.exposure_config.lift_distance / slice_config.exposure_config.lift_speed;

mslicer/src/app.rs

@@ -21,7 +21,7 @@ use crate::{
     windows::{self, Windows},
 };
 use common::config::{ExposureConfig, SliceConfig};
-use goo_format::File as GooFile;
+use goo_format::{File as GooFile, LayerEncoder};
 
 pub struct App {
     pub camera: Camera,
@@ -84,7 +84,7 @@ impl App {
         self.slice_progress = Some(slicer.progress());
 
         thread::spawn(clone!([{ self.slice_result } as slice_result], move || {
-            let goo = GooFile::from_slice_result(slicer.slice());
+            let goo = GooFile::from_slice_result(slicer.slice::<LayerEncoder>());
             slice_result.lock().unwrap().replace(SliceResult {
                 goo,
                 slice_preview_layer: 0,

slicer/src/main.rs

@@ -12,7 +12,7 @@ use common::{
     config::{ExposureConfig, SliceConfig},
     serde::DynamicSerializer,
 };
-use goo_format::File as GooFile;
+use goo_format::{File as GooFile, LayerEncoder};
 use slicer::{mesh::load_mesh, slicer::Slicer, Pos};
 
 fn main() -> Result<()> {
@@ -66,7 +66,7 @@ fn main() -> Result<()> {
     let slicer = Slicer::new(slice_config.clone(), mesh);
     let progress = slicer.progress();
 
-    let goo = thread::spawn(move || GooFile::from_slice_result(slicer.slice()));
+    let goo = thread::spawn(move || GooFile::from_slice_result(slicer.slice::<LayerEncoder>()));
 
     let mut completed = 0;
     while completed < progress.total() {

slicer/src/slicer.rs

@@ -6,7 +6,10 @@ use std::{
     },
 };
 
-use common::{config::SliceConfig, image::Image, misc::SliceResult};
+use common::{
+    config::SliceConfig,
+    misc::{EncodableLayer, SliceResult},
+};
 use ordered_float::OrderedFloat;
 use rayon::iter::{IntoParallelIterator, ParallelIterator};
 
@@ -58,7 +61,7 @@ impl Slicer {
         self.progress.clone()
     }
 
-    pub fn slice(&self) -> SliceResult {
+    pub fn slice<Layer: EncodableLayer>(&self) -> SliceResult<Layer::Output> {
         let (slice_config, model) = (&self.slice_config, &self.model);
         let layers = (0..self.progress.total)
             .into_par_iter()
@@ -98,23 +101,25 @@ impl Slicer {
                     }
                 }
 
-                let mut image = Image::blank(
-                    self.slice_config.platform_resolution.x as usize,
-                    self.slice_config.platform_resolution.y as usize,
-                );
+                // let mut image = Image::blank(
+                //     self.slice_config.platform_resolution.x as usize,
+                //     self.slice_config.platform_resolution.y as usize,
+                // );
+
+                let mut encoder = Layer::new();
 
                 let mut last = 0;
                 for (start, end) in out {
                     if start > last {
-                        image.add_run((start - last) as usize, 0);
+                        encoder.add_run(start - last, 0);
                     }
 
                     assert!(end >= start, "End precedes start in layer {layer}");
-                    image.add_run((end - start) as usize, 255);
+                    encoder.add_run(end - start, 255);
                     last = end;
                 }
 
-                image
+                encoder.finish(layer as usize, slice_config)
             })
             .collect::<Vec<_>>();