gfx/ipc/InProcessCompositorSession.cpp
author Dave Townsend <dtownsend@oxymoronical.com>
Mon, 10 Dec 2018 11:05:01 -0800
changeset 449725 c8d6599f45706bf05bebe60c068f8027f69baaee
parent 448947 6f3709b3878117466168c40affa7bca0b60cf75b
child 461889 5b5e6a9942777d6faee07db57fd6b14d465b3ab3
permissions -rw-r--r--
Bug 1513036: Ignore files generated in the source tree by lalrpop. r=ted

/* -*- 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 "InProcessCompositorSession.h"

#include "mozilla/layers/IAPZCTreeManager.h"
#include "nsBaseWidget.h"

namespace mozilla {
namespace layers {

InProcessCompositorSession::InProcessCompositorSession(
    widget::CompositorWidget* aWidget, nsBaseWidget* baseWidget,
    CompositorBridgeChild* aChild, CompositorBridgeParent* aParent)
    : CompositorSession(aWidget->AsDelegate(), aChild,
                        aParent->RootLayerTreeId()),
      mWidget(baseWidget),
      mCompositorBridgeParent(aParent),
      mCompositorWidget(aWidget) {
  GPUProcessManager::Get()->RegisterInProcessSession(this);
}

/* static */ RefPtr<InProcessCompositorSession>
InProcessCompositorSession::Create(
    nsBaseWidget* aWidget, LayerManager* aLayerManager,
    const LayersId& aRootLayerTreeId, CSSToLayoutDeviceScale aScale,
    const CompositorOptions& aOptions, bool aUseExternalSurfaceSize,
    const gfx::IntSize& aSurfaceSize, uint32_t aNamespace) {
  CompositorWidgetInitData initData;
  aWidget->GetCompositorWidgetInitData(&initData);

  RefPtr<CompositorWidget> widget =
      CompositorWidget::CreateLocal(initData, aOptions, aWidget);
  RefPtr<CompositorBridgeParent> parent =
      CompositorManagerParent::CreateSameProcessWidgetCompositorBridge(
          aScale, aOptions, aUseExternalSurfaceSize, aSurfaceSize);
  MOZ_ASSERT(parent);
  parent->InitSameProcess(widget, aRootLayerTreeId);

  RefPtr<CompositorBridgeChild> child =
      CompositorManagerChild::CreateSameProcessWidgetCompositorBridge(
          aLayerManager, aNamespace);
  MOZ_ASSERT(child);

  return new InProcessCompositorSession(widget, aWidget, child, parent);
}

void InProcessCompositorSession::NotifySessionLost() {
  mWidget->NotifyCompositorSessionLost(this);
}

CompositorBridgeParent* InProcessCompositorSession::GetInProcessBridge() const {
  return mCompositorBridgeParent;
}

void InProcessCompositorSession::SetContentController(
    GeckoContentController* aController) {
  mCompositorBridgeParent->SetControllerForLayerTree(mRootLayerTreeId,
                                                     aController);
}

RefPtr<IAPZCTreeManager> InProcessCompositorSession::GetAPZCTreeManager()
    const {
  return mCompositorBridgeParent->GetAPZCTreeManager(mRootLayerTreeId);
}

nsIWidget* InProcessCompositorSession::GetWidget() const { return mWidget; }

void InProcessCompositorSession::Shutdown() {
  // Destroy will synchronously wait for the parent to acknowledge shutdown,
  // at which point CBP will defer a Release on the compositor thread. We
  // can safely release our reference now, and let the destructor run on either
  // thread.
#if defined(MOZ_WIDGET_ANDROID)
  if (mUiCompositorControllerChild) {
    mUiCompositorControllerChild->Destroy();
    mUiCompositorControllerChild = nullptr;
  }
#endif  // defined(MOZ_WIDGET_ANDROID)
  mCompositorBridgeChild->Destroy();
  mCompositorBridgeChild = nullptr;
  mCompositorBridgeParent = nullptr;
  mCompositorWidget = nullptr;
  GPUProcessManager::Get()->UnregisterInProcessSession(this);
}

}  // namespace layers
}  // namespace mozilla