gecko-dev/gfx/thebes/VsyncSource.cpp

/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
 * 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 "VsyncSource.h"
#include "gfxPlatform.h"
#include "mozilla/TimeStamp.h"
#include "mozilla/VsyncDispatcher.h"

using namespace mozilla;
using namespace mozilla::gfx;

void
VsyncSource::AddVsyncDispatcher(VsyncDispatcher* aVsyncDispatcher)
{
  MOZ_ASSERT(NS_IsMainThread());
  GetGlobalDisplay().AddVsyncDispatcher(aVsyncDispatcher);
}

void
VsyncSource::RemoveVsyncDispatcher(VsyncDispatcher* aVsyncDispatcher)
{
  MOZ_ASSERT(NS_IsMainThread());
  GetGlobalDisplay().RemoveVsyncDispatcher(aVsyncDispatcher);
}

VsyncSource::Display&
VsyncSource::FindDisplay(VsyncDispatcher* aVsyncDispatcher)
{
  return GetGlobalDisplay();
}

void
VsyncSource::Display::NotifyVsync(TimeStamp aVsyncTimestamp)
{
  // Called on the hardware vsync thread
  for (size_t i = 0; i < mVsyncDispatchers.Length(); i++) {
    mVsyncDispatchers[i]->NotifyVsync(aVsyncTimestamp);
  }
}

VsyncSource::Display::Display()
{
  MOZ_ASSERT(NS_IsMainThread());
}

VsyncSource::Display::~Display()
{
  MOZ_ASSERT(NS_IsMainThread());
  mVsyncDispatchers.Clear();
}

void
VsyncSource::Display::AddVsyncDispatcher(VsyncDispatcher* aVsyncDispatcher)
{
  MOZ_ASSERT(NS_IsMainThread());
  mVsyncDispatchers.AppendElement(aVsyncDispatcher);
}

void
VsyncSource::Display::RemoveVsyncDispatcher(VsyncDispatcher* aVsyncDispatcher)
{
  MOZ_ASSERT(NS_IsMainThread());
  mVsyncDispatchers.RemoveElement(aVsyncDispatcher);
}