[WebGPU] validate polygon mode (#4196)

gfx-rs · Oct 4, 2023 · 7d1005f · 7d1005f
1 parent 32b761a
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -161,6 +161,7 @@ By @teoxoy in [#4185](https://github.com/gfx-rs/wgpu/pull/4185)
 #### WebGPU
 
 - Ensure that limit requests and reporting is done correctly. By @OptimisticPeach in [#4107](https://github.com/gfx-rs/wgpu/pull/4107)
+- Validate usage of polygon mode. By @teoxoy in [#4196](https://github.com/gfx-rs/wgpu/pull/4196)
 
 #### Testing
 

diff --git a/wgpu/src/backend/web.rs b/wgpu/src/backend/web.rs
@@ -343,6 +343,18 @@ fn map_primitive_state(primitive: &wgt::PrimitiveState) -> web_sys::GpuPrimitive
     //TODO:
     //mapped.unclipped_depth(primitive.unclipped_depth);
 
+    match primitive.polygon_mode {
+        wgt::PolygonMode::Fill => {}
+        wgt::PolygonMode::Line => panic!(
+            "{:?} is not enabled for this backend",
+            wgt::Features::POLYGON_MODE_LINE
+        ),
+        wgt::PolygonMode::Point => panic!(
+            "{:?} is not enabled for this backend",
+            wgt::Features::POLYGON_MODE_POINT
+        ),
+    }
+
     mapped
 }