1 files changed, 89 insertions, 0 deletions
diff --git a/dom/canvas/XRWebGLLayer.h b/dom/canvas/XRWebGLLayer.h
new file mode 100644
index 0000000000..49d4c7e770
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+++ b/dom/canvas/XRWebGLLayer.h
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+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* 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/. */
+
+#ifndef mozilla_dom_XRWebGLLayer_h_
+#define mozilla_dom_XRWebGLLayer_h_
+
+#include "mozilla/DOMEventTargetHelper.h"
+#include "mozilla/dom/WebXRBinding.h"
+#include "mozilla/dom/XRSession.h"
+#include "nsICanvasRenderingContextInternal.h"
+#include "WebGLTypes.h"
+
+#include "gfxVR.h"
+
+namespace mozilla {
+class WebGLFramebufferJS;
+class ClientWebGLContext;
+namespace dom {
+class XRSession;
+class XRView;
+class XRViewport;
+class WebGLRenderingContextOrWebGL2RenderingContext;
+struct XRWebGLLayerInit;
+class XRWebGLLayer final : public nsWrapperCache {
+ public:
+  NS_INLINE_DECL_CYCLE_COLLECTING_NATIVE_REFCOUNTING(XRWebGLLayer)
+  NS_DECL_CYCLE_COLLECTION_NATIVE_WRAPPERCACHE_CLASS(XRWebGLLayer)
+
+  explicit XRWebGLLayer(
+      nsISupports* aParent, XRSession& aSession, bool aIgnoreDepthValues,
+      double aFramebufferScaleFactor,
+      RefPtr<mozilla::ClientWebGLContext> aWebGLContext,
+      RefPtr<WebGLFramebufferJS> aFramebuffer,
+      const Maybe<const webgl::OpaqueFramebufferOptions>& aOptions);
+
+  // WebIDL Boilerplate
+  JSObject* WrapObject(JSContext* aCx,
+                       JS::Handle<JSObject*> aGivenProto) override;
+  nsISupports* GetParentObject() const;
+
+  // WebIDL Members
+  static already_AddRefed<XRWebGLLayer> Constructor(
+      const GlobalObject& aGlobal, XRSession& aSession,
+      const WebGLRenderingContextOrWebGL2RenderingContext& aXRWebGLContext,
+      const XRWebGLLayerInit& aXRWebGLLayerInitDict, ErrorResult& aRv);
+  bool Depth();
+  bool Stencil();
+  bool Alpha();
+  bool Antialias();
+  bool IgnoreDepthValues();
+  WebGLFramebufferJS* GetFramebuffer();
+  uint32_t FramebufferWidth();
+  uint32_t FramebufferHeight();
+  already_AddRefed<XRViewport> GetViewport(const XRView& aView);
+  static double GetNativeFramebufferScaleFactor(const GlobalObject& aGlobal,
+                                                const XRSession& aSession);
+
+  // Non-WebIDL Members
+  void StartAnimationFrame();
+  void EndAnimationFrame();
+  HTMLCanvasElement* GetCanvas();
+  void SessionEnded();
+
+ private:
+  void DeleteFramebuffer();
+  virtual ~XRWebGLLayer();
+  nsCOMPtr<nsISupports> mParent;
+
+ public:
+  RefPtr<XRSession> mSession;
+  RefPtr<mozilla::ClientWebGLContext> mWebGL;
+  double mFramebufferScaleFactor;
+  bool mCompositionDisabled;
+
+ private:
+  bool mIgnoreDepthValues;
+  RefPtr<WebGLFramebufferJS> mFramebuffer;
+  RefPtr<XRViewport> mLeftViewport;
+  RefPtr<XRViewport> mRightViewport;
+  Maybe<const webgl::OpaqueFramebufferOptions> mFramebufferOptions;
+};
+
+}  // namespace dom
+}  // namespace mozilla
+
+#endif  // mozilla_dom_XRWebGLLayer_h_