1 files changed, 40 insertions, 0 deletions
diff --git a/dom/webgpu/Utility.h b/dom/webgpu/Utility.h
new file mode 100644
index 0000000000..7d2b82484d
--- /dev/null
+++ b/dom/webgpu/Utility.h
@@ -0,0 +1,40 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef GPU_UTIL_H_
+#define GPU_UTIL_H_
+
+#include "mozilla/dom/WebGPUBinding.h"
+
+namespace mozilla {
+class ErrorResult;
+
+namespace dom {
+struct GPUComputePassDescriptor;
+template <typename T>
+class Sequence;
+using GPUExtent3D = RangeEnforcedUnsignedLongSequenceOrGPUExtent3DDict;
+using OwningGPUExtent3D =
+    OwningRangeEnforcedUnsignedLongSequenceOrGPUExtent3DDict;
+}  // namespace dom
+namespace webgpu {
+namespace ffi {
+struct WGPUExtent3d;
+}  // namespace ffi
+
+void ConvertExtent3DToFFI(const dom::GPUExtent3D& aExtent,
+                          ffi::WGPUExtent3d* aExtentFFI);
+
+void ConvertExtent3DToFFI(const dom::OwningGPUExtent3D& aExtent,
+                          ffi::WGPUExtent3d* aExtentFFI);
+
+ffi::WGPUExtent3d ConvertExtent(const dom::GPUExtent3D& aExtent);
+
+ffi::WGPUExtent3d ConvertExtent(const dom::OwningGPUExtent3D& aExtent);
+
+}  // namespace webgpu
+}  // namespace mozilla
+
+#endif  // GPU_UTIL_H_