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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/. */
#include "RemoteCompositorSession.h"
#include "gfxPlatform.h"
#include "mozilla/VsyncDispatcher.h"
#include "mozilla/gfx/GPUProcessManager.h"
#include "mozilla/layers/APZChild.h"
#include "mozilla/layers/APZCTreeManagerChild.h"
#include "mozilla/layers/CompositorBridgeChild.h"
#include "mozilla/layers/GeckoContentController.h"
#include "mozilla/Unused.h"
#include "nsBaseWidget.h"
#if defined(MOZ_WIDGET_ANDROID)
# include "mozilla/layers/UiCompositorControllerChild.h"
#endif // defined(MOZ_WIDGET_ANDROID)
namespace mozilla {
namespace layers {
using namespace gfx;
using namespace widget;
RemoteCompositorSession::RemoteCompositorSession(
nsBaseWidget* aWidget, CompositorBridgeChild* aChild,
CompositorWidgetDelegate* aWidgetDelegate, APZCTreeManagerChild* aAPZ,
const LayersId& aRootLayerTreeId)
: CompositorSession(aWidget, aWidgetDelegate, aChild, aRootLayerTreeId),
mAPZ(aAPZ) {
MOZ_ASSERT(!gfxPlatform::IsHeadless());
GPUProcessManager::Get()->RegisterRemoteProcessSession(this);
if (mAPZ) {
mAPZ->SetCompositorSession(this);
}
}
RemoteCompositorSession::~RemoteCompositorSession() {
// This should have been shutdown first.
MOZ_ASSERT(!mCompositorBridgeChild);
#if defined(MOZ_WIDGET_ANDROID)
MOZ_ASSERT(!mUiCompositorControllerChild);
#endif // defined(MOZ_WIDGET_ANDROID)
}
void RemoteCompositorSession::NotifySessionLost() {
// Hold a reference to mWidget since NotifyCompositorSessionLost may
// release the last reference mid-execution.
RefPtr<nsBaseWidget> widget(mWidget);
// Re-entrancy should be impossible: when we are being notified of a lost
// session, we have by definition not shut down yet. We will shutdown, but
// then will be removed from the notification list.
widget->NotifyCompositorSessionLost(this);
}
CompositorBridgeParent* RemoteCompositorSession::GetInProcessBridge() const {
return nullptr;
}
void RemoteCompositorSession::SetContentController(
GeckoContentController* aController) {
mContentController = aController;
mCompositorBridgeChild->SendPAPZConstructor(new APZChild(aController),
LayersId{0});
}
GeckoContentController* RemoteCompositorSession::GetContentController() {
return mContentController.get();
}
nsIWidget* RemoteCompositorSession::GetWidget() const { return mWidget; }
RefPtr<IAPZCTreeManager> RemoteCompositorSession::GetAPZCTreeManager() const {
return mAPZ;
}
void RemoteCompositorSession::Shutdown() {
mContentController = nullptr;
if (mAPZ) {
mAPZ->SetCompositorSession(nullptr);
mAPZ->Destroy();
}
if (mCompositorBridgeChild) {
mCompositorBridgeChild->Destroy();
mCompositorBridgeChild = nullptr;
}
mCompositorWidgetDelegate = nullptr;
mWidget = nullptr;
#if defined(MOZ_WIDGET_ANDROID)
if (mUiCompositorControllerChild) {
mUiCompositorControllerChild->Destroy();
mUiCompositorControllerChild = nullptr;
}
#endif // defined(MOZ_WIDGET_ANDROID)
GPUProcessManager::Get()->UnregisterRemoteProcessSession(this);
}
} // namespace layers
} // namespace mozilla
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