1 files changed, 51 insertions, 0 deletions
diff --git a/dom/webgpu/SwapChain.cpp b/dom/webgpu/SwapChain.cpp
new file mode 100644
index 0000000000..96061689bf
--- /dev/null
+++ b/dom/webgpu/SwapChain.cpp
@@ -0,0 +1,51 @@
+/* -*- 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 "SwapChain.h"
+#include "Texture.h"
+#include "mozilla/dom/WebGPUBinding.h"
+#include "ipc/WebGPUChild.h"
+
+namespace mozilla {
+namespace webgpu {
+
+GPU_IMPL_CYCLE_COLLECTION(SwapChain, mParent, mTexture)
+GPU_IMPL_JS_WRAP(SwapChain)
+
+SwapChain::SwapChain(const dom::GPUSwapChainDescriptor& aDesc,
+                     const dom::GPUExtent3DDict& aExtent3D,
+                     wr::ExternalImageId aExternalImageId,
+                     gfx::SurfaceFormat aFormat)
+    : ChildOf(aDesc.mDevice),
+      mFormat(aFormat),
+      mTexture(aDesc.mDevice->InitSwapChain(aDesc, aExtent3D, aExternalImageId,
+                                            aFormat)) {}
+
+SwapChain::~SwapChain() { Cleanup(); }
+
+void SwapChain::Cleanup() {
+  if (mValid) {
+    mValid = false;
+  }
+}
+
+WebGPUChild* SwapChain::GetGpuBridge() const {
+  return mParent ? mParent->GetBridge().get() : nullptr;
+}
+
+void SwapChain::Destroy(wr::ExternalImageId aExternalImageId) {
+  if (mValid && mParent && mParent->GetBridge()) {
+    mValid = false;
+    auto bridge = mParent->GetBridge();
+    if (bridge && bridge->IsOpen()) {
+      bridge->SendSwapChainDestroy(aExternalImageId);
+    }
+  }
+}
+
+RefPtr<Texture> SwapChain::GetCurrentTexture() { return mTexture; }
+
+}  // namespace webgpu
+}  // namespace mozilla