Experimental wgpu WebGL backend support

- Added missing `draw_cache_align_4x4` call for `brush_glyph` on wasm32 target
- Added WebGL support to `integratio_wgpu` example
- Fixed test.yml CI workflow
- Removed spir-v shader in `integration_wgpu`; Fixed formatting
- Removed redundant `BoxStream` typedef

1 files changed, 8 insertions, 4 deletions

diff --git a/glow/src/text.rs b/glow/src/text.rs
index 3b6f3bf5..834e7902 100644
--- a/glow/src/text.rs
+++ b/glow/src/text.rs
@@ -46,11 +46,15 @@ impl Pipeline {
                     .expect("Load fallback font")
             });
 
-        let draw_brush =
-            glow_glyph::GlyphBrushBuilder::using_font(font.clone())
+        let draw_brush_builder =
+            wgpu_glyph::GlyphBrushBuilder::using_font(font.clone())
                 .initial_cache_size((2048, 2048))
-                .draw_cache_multithread(multithreading)
-                .build(&gl);
+                .draw_cache_multithread(multithreading);
+
+        #[cfg(target_arch = "wasm32")]
+        let draw_brush_builder = draw_brush_builder.draw_cache_align_4x4(true);
+
+        let draw_brush = draw_brush_builder.build(&gl);
 
         let measure_brush =
             glyph_brush::GlyphBrushBuilder::using_font(font).build();