Validate buffer view offset on bind groups

src/backend/BindGroup.cpp

@@ -19,6 +19,7 @@
 #include "backend/Device.h"
 #include "backend/Texture.h"
 #include "common/Assert.h"
+#include "common/Math.h"
 
 namespace backend {
 
@@ -130,6 +131,11 @@ namespace backend {
                 HandleError("Buffer needs to allow the correct usage bit");
                 return;
             }
+
+            if (!IsAligned(bufferViews[i]->GetOffset(), 256)) {
+                HandleError("Buffer view offset for bind group needs to be 256-byte aligned");
+                return;
+            }
         }
 
         SetBindingsBase(start, count, reinterpret_cast<RefCounted* const *>(bufferViews));