1 files changed, 20 insertions, 0 deletions
diff --git a/components/script/dom/webidls/GPUBufferUsage.webidl b/components/script/dom/webidls/GPUBufferUsage.webidl
new file mode 100644
index 00000000000..6db1d029f18
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+++ b/components/script/dom/webidls/GPUBufferUsage.webidl
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+/* 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 https://mozilla.org/MPL/2.0/. */
+
+// https://gpuweb.github.io/gpuweb/#buffer-usage
+[Exposed=(Window, DedicatedWorker), Pref="dom.webgpu.enabled"]
+interface GPUBufferUsage {
+    const GPUBufferUsageFlags MAP_READ      = 0x0001;
+    const GPUBufferUsageFlags MAP_WRITE     = 0x0002;
+    const GPUBufferUsageFlags COPY_SRC      = 0x0004;
+    const GPUBufferUsageFlags COPY_DST      = 0x0008;
+    const GPUBufferUsageFlags INDEX         = 0x0010;
+    const GPUBufferUsageFlags VERTEX        = 0x0020;
+    const GPUBufferUsageFlags UNIFORM       = 0x0040;
+    const GPUBufferUsageFlags STORAGE       = 0x0080;
+    const GPUBufferUsageFlags INDIRECT      = 0x0100;
+    const GPUBufferUsageFlags QUERY_RESOLVE = 0x0200;
+};
+
+typedef [EnforceRange] unsigned long GPUBufferUsageFlags;