Mesh shaders - initial wgpu hal changes

wgpu-hal/src/dx12/command.rs

@@ -1177,6 +1177,14 @@ impl crate::CommandEncoder for super::CommandEncoder {
             )
         }
     }
+    unsafe fn draw_mesh_tasks(
+        &mut self,
+        _group_count_x: u32,
+        _group_count_y: u32,
+        _group_count_z: u32,
+    ) {
+        unreachable!()
+    }
     unsafe fn draw_indirect(
         &mut self,
         buffer: &super::Buffer,
@@ -1213,6 +1221,14 @@ impl crate::CommandEncoder for super::CommandEncoder {
             )
         }
     }
+    unsafe fn draw_mesh_tasks_indirect(
+        &mut self,
+        _buffer: &<Self::A as crate::Api>::Buffer,
+        _offset: wgt::BufferAddress,
+        _draw_count: u32,
+    ) {
+        unreachable!()
+    }
     unsafe fn draw_indirect_count(
         &mut self,
         buffer: &super::Buffer,
@@ -1253,6 +1269,16 @@ impl crate::CommandEncoder for super::CommandEncoder {
             )
         }
     }
+    unsafe fn draw_mesh_tasks_indirect_count(
+        &mut self,
+        _buffer: &<Self::A as crate::Api>::Buffer,
+        _offset: wgt::BufferAddress,
+        _count_buffer: &<Self::A as crate::Api>::Buffer,
+        _count_offset: wgt::BufferAddress,
+        _max_count: u32,
+    ) {
+        unreachable!()
+    }
 
     // compute
 

wgpu-hal/src/dx12/device.rs

@@ -1881,6 +1881,18 @@ impl crate::Device for super::Device {
             vertex_strides,
         })
     }
+
+    unsafe fn create_mesh_pipeline(
+        &self,
+        _desc: &crate::MeshPipelineDescriptor<
+            <Self::A as crate::Api>::PipelineLayout,
+            <Self::A as crate::Api>::ShaderModule,
+            <Self::A as crate::Api>::PipelineCache,
+        >,
+    ) -> Result<<Self::A as crate::Api>::RenderPipeline, crate::PipelineError> {
+        unreachable!()
+    }
+
     unsafe fn destroy_render_pipeline(&self, _pipeline: super::RenderPipeline) {
         self.counters.render_pipelines.sub(1);
     }