1 files changed, 86 insertions, 0 deletions
diff --git a/testing/web-platform/mozilla/tests/webgpu/common/util/navigator_gpu.js b/testing/web-platform/mozilla/tests/webgpu/common/util/navigator_gpu.js
new file mode 100644
index 0000000000..d5db9f936e
--- /dev/null
+++ b/testing/web-platform/mozilla/tests/webgpu/common/util/navigator_gpu.js
@@ -0,0 +1,86 @@
+/**
+* AUTO-GENERATED - DO NOT EDIT. Source: https://github.com/gpuweb/cts
+**/ /// <reference types="@webgpu/types" />
+
+import { ErrorWithExtra, assert, objectEquals } from './util.js';
+
+/**
+ * Finds and returns the `navigator.gpu` object (or equivalent, for non-browser implementations).
+ * Throws an exception if not found.
+ */
+function defaultGPUProvider() {
+  assert(
+    typeof navigator !== 'undefined' && navigator.gpu !== undefined,
+    'No WebGPU implementation found'
+  );
+  return navigator.gpu;
+}
+
+/**
+ * GPUProvider is a function that creates and returns a new GPU instance.
+ * May throw an exception if a GPU cannot be created.
+ */
+
+
+let gpuProvider = defaultGPUProvider;
+
+/**
+ * Sets the function to create and return a new GPU instance.
+ */
+export function setGPUProvider(provider) {
+  assert(impl === undefined, 'setGPUProvider() should not be after getGPU()');
+  gpuProvider = provider;
+}
+
+let impl = undefined;
+
+let defaultRequestAdapterOptions;
+
+export function setDefaultRequestAdapterOptions(options) {
+  // It's okay to call this if you don't change the options
+  if (objectEquals(options, defaultRequestAdapterOptions)) {
+    return;
+  }
+  if (impl) {
+    throw new Error('must call setDefaultRequestAdapterOptions before getGPU');
+  }
+  defaultRequestAdapterOptions = { ...options };
+}
+
+export function getDefaultRequestAdapterOptions() {
+  return defaultRequestAdapterOptions;
+}
+
+/**
+ * Finds and returns the `navigator.gpu` object (or equivalent, for non-browser implementations).
+ * Throws an exception if not found.
+ */
+export function getGPU(recorder) {
+  if (impl) {
+    return impl;
+  }
+
+  impl = gpuProvider();
+
+  if (defaultRequestAdapterOptions) {
+
+    const oldFn = impl.requestAdapter;
+    impl.requestAdapter = function (
+    options)
+    {
+      const promise = oldFn.call(this, { ...defaultRequestAdapterOptions, ...options });
+      if (recorder) {
+        void promise.then(async (adapter) => {
+          if (adapter) {
+            const info = await adapter.requestAdapterInfo();
+            const infoString = `Adapter: ${info.vendor} / ${info.architecture} / ${info.device}`;
+            recorder.debug(new ErrorWithExtra(infoString, () => ({ adapterInfo: info })));
+          }
+        });
+      }
+      return promise;
+    };
+  }
+
+  return impl;
+}
+\ No newline at end of file