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-rw-r--r--dom/webgpu/Utility.cpp53
1 files changed, 53 insertions, 0 deletions
diff --git a/dom/webgpu/Utility.cpp b/dom/webgpu/Utility.cpp
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+++ b/dom/webgpu/Utility.cpp
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+/* -*- 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/. */
+
+#include "Utility.h"
+#include "mozilla/dom/WebGPUBinding.h"
+#include "mozilla/webgpu/ffi/wgpu.h"
+#include "mozilla/webgpu/WebGPUTypes.h"
+
+namespace mozilla::webgpu {
+
+template <typename E>
+void ConvertToExtent3D(const E& aExtent, ffi::WGPUExtent3d* aExtentFFI) {
+ *aExtentFFI = {};
+ if (aExtent.IsRangeEnforcedUnsignedLongSequence()) {
+ const auto& seq = aExtent.GetAsRangeEnforcedUnsignedLongSequence();
+ aExtentFFI->width = seq.Length() > 0 ? seq[0] : 0;
+ aExtentFFI->height = seq.Length() > 1 ? seq[1] : 1;
+ aExtentFFI->depth_or_array_layers = seq.Length() > 2 ? seq[2] : 1;
+ } else if (aExtent.IsGPUExtent3DDict()) {
+ const auto& dict = aExtent.GetAsGPUExtent3DDict();
+ aExtentFFI->width = dict.mWidth;
+ aExtentFFI->height = dict.mHeight;
+ aExtentFFI->depth_or_array_layers = dict.mDepthOrArrayLayers;
+ } else {
+ MOZ_CRASH("Unexpected extent type");
+ }
+}
+
+void ConvertExtent3DToFFI(const dom::GPUExtent3D& aExtent,
+ ffi::WGPUExtent3d* aExtentFFI) {
+ ConvertToExtent3D(aExtent, aExtentFFI);
+}
+
+void ConvertExtent3DToFFI(const dom::OwningGPUExtent3D& aExtent,
+ ffi::WGPUExtent3d* aExtentFFI) {
+ ConvertToExtent3D(aExtent, aExtentFFI);
+}
+
+ffi::WGPUExtent3d ConvertExtent(const dom::GPUExtent3D& aExtent) {
+ ffi::WGPUExtent3d extent = {};
+ ConvertToExtent3D(aExtent, &extent);
+ return extent;
+}
+
+ffi::WGPUExtent3d ConvertExtent(const dom::OwningGPUExtent3D& aExtent) {
+ ffi::WGPUExtent3d extent = {};
+ ConvertToExtent3D(aExtent, &extent);
+ return extent;
+}
+
+} // namespace mozilla::webgpu