4 files changed, 21 insertions, 5 deletions
diff --git a/wgpu/src/backend.rs b/wgpu/src/backend.rs
index 534c6cb7..783079f3 100644
--- a/wgpu/src/backend.rs
+++ b/wgpu/src/backend.rs
@@ -31,8 +31,13 @@ pub struct Backend {
 impl Backend {
     /// Creates a new [`Backend`].
     pub fn new(device: &wgpu::Device, settings: Settings) -> Self {
-        let text_pipeline =
-            text::Pipeline::new(device, settings.format, settings.default_font);
+        let text_pipeline = text::Pipeline::new(
+            device,
+            settings.format,
+            settings.default_font,
+            settings.text_multithreading,
+        );
+
         let quad_pipeline = quad::Pipeline::new(device, settings.format);
         let triangle_pipeline = triangle::Pipeline::new(
             device,
diff --git a/wgpu/src/image/vector.rs b/wgpu/src/image/vector.rs
index 8c7de617..cd511a45 100644
--- a/wgpu/src/image/vector.rs
+++ b/wgpu/src/image/vector.rs
@@ -75,8 +75,8 @@ impl Cache {
         let id = handle.id();
 
         let (width, height) = (
-            (scale * width).round() as u32,
-            (scale * height).round() as u32,
+            (scale * width).ceil() as u32,
+            (scale * height).ceil() as u32,
         );
 
         // TODO: Optimize!
@@ -122,6 +122,7 @@ impl Cache {
                     device,
                     encoder,
                 )?;
+                log::debug!("allocating {} {}x{}", id, width, height);
 
                 let _ = self.svg_hits.insert(id);
                 let _ = self.rasterized_hits.insert((id, width, height));
diff --git a/wgpu/src/settings.rs b/wgpu/src/settings.rs
index 6c97d895..9a7eed34 100644
--- a/wgpu/src/settings.rs
+++ b/wgpu/src/settings.rs
@@ -29,7 +29,15 @@ pub struct Settings {
     /// By default, it will be set to 20.
     pub default_text_size: u16,
 
+    /// If enabled, spread text workload in multiple threads when multiple cores
+    /// are available.
+    ///
+    /// By default, it is disabled.
+    pub text_multithreading: bool,
+
     /// The antialiasing strategy that will be used for triangle primitives.
+    ///
+    /// By default, it is `None`.
     pub antialiasing: Option<Antialiasing>,
 }
 
@@ -65,6 +73,7 @@ impl Default for Settings {
             internal_backend: wgpu::BackendBit::PRIMARY,
             default_font: None,
             default_text_size: 20,
+            text_multithreading: false,
             antialiasing: None,
         }
     }
diff --git a/wgpu/src/text.rs b/wgpu/src/text.rs
index 4d92d9e9..2b5b94c9 100644
--- a/wgpu/src/text.rs
+++ b/wgpu/src/text.rs
@@ -15,6 +15,7 @@ impl Pipeline {
         device: &wgpu::Device,
         format: wgpu::TextureFormat,
         default_font: Option<&[u8]>,
+        multithreading: bool,
     ) -> Self {
         let default_font = default_font.map(|slice| slice.to_vec());
 
@@ -46,7 +47,7 @@ impl Pipeline {
         let draw_brush =
             wgpu_glyph::GlyphBrushBuilder::using_font(font.clone())
                 .initial_cache_size((2048, 2048))
-                .draw_cache_multithread(false) // TODO: Expose as a configuration flag
+                .draw_cache_multithread(multithreading)
                 .build(device, format);
 
         let measure_brush =