1 files changed, 17 insertions, 0 deletions
diff --git a/components/script/dom/webidls/GPUCanvasContext.webidl b/components/script/dom/webidls/GPUCanvasContext.webidl
new file mode 100644
index 00000000000..5e19f1467e6
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+++ b/components/script/dom/webidls/GPUCanvasContext.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/#gpucanvascontext
+[Exposed=(Window, DedicatedWorker), Pref="dom.webgpu.enabled"]
+interface GPUCanvasContext {
+    GPUSwapChain configureSwapChain(GPUSwapChainDescriptor descriptor);
+
+    //Promise<GPUTextureFormat> getSwapChainPreferredFormat(GPUDevice device);
+};
+
+dictionary GPUSwapChainDescriptor : GPUObjectDescriptorBase {
+    required GPUDevice device;
+    required GPUTextureFormat format;
+    GPUTextureUsageFlags usage = 0x10;  // GPUTextureUsage.OUTPUT_ATTACHMENT
+};