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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /gfx/vr/ipc/VRLayerChild.cpp
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
Diffstat (limited to 'gfx/vr/ipc/VRLayerChild.cpp')
-rw-r--r--gfx/vr/ipc/VRLayerChild.cpp86
1 files changed, 86 insertions, 0 deletions
diff --git a/gfx/vr/ipc/VRLayerChild.cpp b/gfx/vr/ipc/VRLayerChild.cpp
new file mode 100644
index 000000000..cffe9c1f1
--- /dev/null
+++ b/gfx/vr/ipc/VRLayerChild.cpp
@@ -0,0 +1,86 @@
+/* -*- Mode: C++; tab-width: 2; 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 "VRLayerChild.h"
+#include "GLScreenBuffer.h"
+#include "mozilla/layers/TextureClientSharedSurface.h"
+#include "SharedSurface.h" // for SharedSurface
+#include "SharedSurfaceGL.h" // for SharedSurface
+#include "mozilla/layers/LayersMessages.h" // for TimedTexture
+#include "nsICanvasRenderingContextInternal.h"
+#include "mozilla/dom/HTMLCanvasElement.h"
+
+namespace mozilla {
+namespace gfx {
+
+VRLayerChild::VRLayerChild(uint32_t aVRDisplayID, VRManagerChild* aVRManagerChild)
+ : mVRDisplayID(aVRDisplayID)
+ , mCanvasElement(nullptr)
+ , mShSurfClient(nullptr)
+ , mFront(nullptr)
+{
+ MOZ_COUNT_CTOR(VRLayerChild);
+}
+
+VRLayerChild::~VRLayerChild()
+{
+ if (mCanvasElement) {
+ mCanvasElement->StopVRPresentation();
+ }
+
+ ClearSurfaces();
+
+ MOZ_COUNT_DTOR(VRLayerChild);
+}
+
+void
+VRLayerChild::Initialize(dom::HTMLCanvasElement* aCanvasElement)
+{
+ MOZ_ASSERT(aCanvasElement);
+ mCanvasElement = aCanvasElement;
+ mCanvasElement->StartVRPresentation();
+
+ VRManagerChild *vrmc = VRManagerChild::Get();
+ vrmc->RunFrameRequestCallbacks();
+}
+
+void
+VRLayerChild::SubmitFrame()
+{
+ if (!mCanvasElement) {
+ return;
+ }
+
+ mShSurfClient = mCanvasElement->GetVRFrame();
+ if (!mShSurfClient) {
+ return;
+ }
+
+ gl::SharedSurface* surf = mShSurfClient->Surf();
+ if (surf->mType == gl::SharedSurfaceType::Basic) {
+ gfxCriticalError() << "SharedSurfaceType::Basic not supported for WebVR";
+ return;
+ }
+
+ mFront = mShSurfClient;
+ mShSurfClient = nullptr;
+
+ mFront->SetAddedToCompositableClient();
+ VRManagerChild* vrmc = VRManagerChild::Get();
+ mFront->SyncWithObject(vrmc->GetSyncObject());
+ MOZ_ALWAYS_TRUE(mFront->InitIPDLActor(vrmc));
+
+ SendSubmitFrame(mFront->GetIPDLActor());
+}
+
+void
+VRLayerChild::ClearSurfaces()
+{
+ mFront = nullptr;
+ mShSurfClient = nullptr;
+}
+
+} // namespace gfx
+} // namespace mozilla