gecko-dev/gfx/layers/ipc/UiCompositorControllerChild...

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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 "mozilla/layers/UiCompositorControllerChild.h"
#include "mozilla/dom/ContentChild.h"
#include "mozilla/layers/CompositorThread.h"
#include "mozilla/layers/UiCompositorControllerMessageTypes.h"
#include "mozilla/layers/UiCompositorControllerParent.h"
#include "mozilla/gfx/GPUProcessManager.h"
#include "mozilla/StaticPtr.h"
#include "nsBaseWidget.h"
#include "nsProxyRelease.h"
#include "nsThreadUtils.h"
#if defined(MOZ_WIDGET_ANDROID)
# include "mozilla/widget/AndroidUiThread.h"
static RefPtr<nsThread> GetUiThread() { return mozilla::GetAndroidUiThread(); }
#else
static RefPtr<nsThread> GetUiThread() {
MOZ_CRASH("Platform does not support UiCompositorController");
return nullptr;
}
#endif // defined(MOZ_WIDGET_ANDROID)
static bool IsOnUiThread() {
return GetUiThread()->SerialEventTarget()->IsOnCurrentThread();
}
namespace mozilla {
namespace layers {
// public:
/* static */
RefPtr<UiCompositorControllerChild>
UiCompositorControllerChild::CreateForSameProcess(
const LayersId& aRootLayerTreeId) {
RefPtr<UiCompositorControllerChild> child =
new UiCompositorControllerChild(0);
child->mParent = new UiCompositorControllerParent(aRootLayerTreeId);
GetUiThread()->Dispatch(
NewRunnableMethod(
"layers::UiCompositorControllerChild::OpenForSameProcess", child,
&UiCompositorControllerChild::OpenForSameProcess),
nsIThread::DISPATCH_NORMAL);
return child;
}
/* static */
RefPtr<UiCompositorControllerChild>
UiCompositorControllerChild::CreateForGPUProcess(
const uint64_t& aProcessToken,
Endpoint<PUiCompositorControllerChild>&& aEndpoint) {
RefPtr<UiCompositorControllerChild> child =
new UiCompositorControllerChild(aProcessToken);
RefPtr<nsIRunnable> task =
NewRunnableMethod<Endpoint<PUiCompositorControllerChild>&&>(
"layers::UiCompositorControllerChild::OpenForGPUProcess", child,
&UiCompositorControllerChild::OpenForGPUProcess,
std::move(aEndpoint));
GetUiThread()->Dispatch(task.forget(), nsIThread::DISPATCH_NORMAL);
return child;
}
bool UiCompositorControllerChild::Pause() {
if (!mIsOpen) {
return false;
}
return SendPause();
}
bool UiCompositorControllerChild::Resume() {
if (!mIsOpen) {
return false;
}
return SendResume();
}
bool UiCompositorControllerChild::ResumeAndResize(const int32_t& aX,
const int32_t& aY,
const int32_t& aWidth,
const int32_t& aHeight) {
if (!mIsOpen) {
mResize = Some(gfx::IntRect(aX, aY, aWidth, aHeight));
// Since we are caching these values, pretend the call succeeded.
return true;
}
return SendResumeAndResize(aX, aY, aWidth, aHeight);
}
bool UiCompositorControllerChild::InvalidateAndRender() {
if (!mIsOpen) {
return false;
}
return SendInvalidateAndRender();
}
bool UiCompositorControllerChild::SetMaxToolbarHeight(const int32_t& aHeight) {
if (!mIsOpen) {
mMaxToolbarHeight = Some(aHeight);
// Since we are caching this value, pretend the call succeeded.
return true;
}
return SendMaxToolbarHeight(aHeight);
}
bool UiCompositorControllerChild::SetFixedBottomOffset(int32_t aOffset) {
return SendFixedBottomOffset(aOffset);
}
bool UiCompositorControllerChild::SetPinned(const bool& aPinned,
const int32_t& aReason) {
if (!mIsOpen) {
return false;
}
return SendPinned(aPinned, aReason);
}
bool UiCompositorControllerChild::ToolbarAnimatorMessageFromUI(
const int32_t& aMessage) {
if (!mIsOpen) {
return false;
}
if (aMessage == IS_COMPOSITOR_CONTROLLER_OPEN) {
RecvToolbarAnimatorMessageFromCompositor(COMPOSITOR_CONTROLLER_OPEN);
return true;
}
return SendToolbarAnimatorMessageFromUI(aMessage);
}
bool UiCompositorControllerChild::SetDefaultClearColor(const uint32_t& aColor) {
if (!mIsOpen) {
mDefaultClearColor = Some(aColor);
// Since we are caching this value, pretend the call succeeded.
return true;
}
return SendDefaultClearColor(aColor);
}
bool UiCompositorControllerChild::RequestScreenPixels() {
if (!mIsOpen) {
return false;
}
return SendRequestScreenPixels();
}
bool UiCompositorControllerChild::EnableLayerUpdateNotifications(
const bool& aEnable) {
if (!mIsOpen) {
mLayerUpdateEnabled = Some(aEnable);
// Since we are caching this value, pretend the call succeeded.
return true;
}
return SendEnableLayerUpdateNotifications(aEnable);
}
bool UiCompositorControllerChild::ToolbarPixelsToCompositor(
Shmem& aMem, const ScreenIntSize& aSize) {
if (!mIsOpen) {
return false;
}
return SendToolbarPixelsToCompositor(std::move(aMem), aSize);
}
void UiCompositorControllerChild::Destroy() {
if (!IsOnUiThread()) {
GetUiThread()->Dispatch(
NewRunnableMethod("layers::UiCompositorControllerChild::Destroy", this,
&UiCompositorControllerChild::Destroy),
nsIThread::DISPATCH_SYNC);
return;
}
if (mWidget) {
// Dispatch mWidget to main thread to prevent it from being destructed by
// the ui thread.
RefPtr<nsIWidget> widget = std::move(mWidget);
NS_ReleaseOnMainThreadSystemGroup("UiCompositorControllerChild::mWidget",
widget.forget());
}
if (mIsOpen) {
// Close the underlying IPC channel.
PUiCompositorControllerChild::Close();
mIsOpen = false;
}
}
void UiCompositorControllerChild::SetBaseWidget(nsBaseWidget* aWidget) {
mWidget = aWidget;
}
bool UiCompositorControllerChild::AllocPixelBuffer(const int32_t aSize,
Shmem* aMem) {
MOZ_ASSERT(aSize > 0);
return AllocShmem(aSize, ipc::SharedMemory::TYPE_BASIC, aMem);
}
bool UiCompositorControllerChild::DeallocPixelBuffer(Shmem& aMem) {
return DeallocShmem(aMem);
}
// protected:
void UiCompositorControllerChild::ActorDestroy(ActorDestroyReason aWhy) {
mIsOpen = false;
mParent = nullptr;
if (mProcessToken) {
gfx::GPUProcessManager::Get()->NotifyRemoteActorDestroyed(mProcessToken);
mProcessToken = 0;
}
}
void UiCompositorControllerChild::ActorDealloc() {
if (mParent) {
mParent = nullptr;
}
Release();
}
void UiCompositorControllerChild::ProcessingError(Result aCode,
const char* aReason) {
if (aCode != MsgDropped) {
gfxDevCrash(gfx::LogReason::ProcessingError)
<< "Processing error in UiCompositorControllerChild: " << int(aCode);
}
}
void UiCompositorControllerChild::HandleFatalError(const char* aMsg) const {
dom::ContentChild::FatalErrorIfNotUsingGPUProcess(aMsg, OtherPid());
}
mozilla::ipc::IPCResult
UiCompositorControllerChild::RecvToolbarAnimatorMessageFromCompositor(
const int32_t& aMessage) {
#if defined(MOZ_WIDGET_ANDROID)
if (mWidget) {
mWidget->RecvToolbarAnimatorMessageFromCompositor(aMessage);
}
#endif // defined(MOZ_WIDGET_ANDROID)
return IPC_OK();
}
mozilla::ipc::IPCResult UiCompositorControllerChild::RecvRootFrameMetrics(
const ScreenPoint& aScrollOffset, const CSSToScreenScale& aZoom) {
#if defined(MOZ_WIDGET_ANDROID)
if (mWidget) {
mWidget->UpdateRootFrameMetrics(aScrollOffset, aZoom);
}
#endif // defined(MOZ_WIDGET_ANDROID)
return IPC_OK();
}
mozilla::ipc::IPCResult UiCompositorControllerChild::RecvScreenPixels(
ipc::Shmem&& aMem, const ScreenIntSize& aSize) {
#if defined(MOZ_WIDGET_ANDROID)
if (mWidget) {
mWidget->RecvScreenPixels(std::move(aMem), aSize);
}
#endif // defined(MOZ_WIDGET_ANDROID)
return IPC_OK();
}
// private:
UiCompositorControllerChild::UiCompositorControllerChild(
const uint64_t& aProcessToken)
: mIsOpen(false), mProcessToken(aProcessToken), mWidget(nullptr) {}
UiCompositorControllerChild::~UiCompositorControllerChild() = default;
void UiCompositorControllerChild::OpenForSameProcess() {
MOZ_ASSERT(IsOnUiThread());
mIsOpen = Open(mParent->GetIPCChannel(),
mozilla::layers::CompositorThreadHolder::Loop(),
mozilla::ipc::ChildSide);
if (!mIsOpen) {
mParent = nullptr;
return;
}
mParent->InitializeForSameProcess();
AddRef();
SendCachedValues();
// Let Ui thread know the connection is open;
RecvToolbarAnimatorMessageFromCompositor(COMPOSITOR_CONTROLLER_OPEN);
}
void UiCompositorControllerChild::OpenForGPUProcess(
Endpoint<PUiCompositorControllerChild>&& aEndpoint) {
MOZ_ASSERT(IsOnUiThread());
mIsOpen = aEndpoint.Bind(this);
if (!mIsOpen) {
// The GPU Process Manager might be gone if we receive ActorDestroy very
// late in shutdown.
if (gfx::GPUProcessManager* gpm = gfx::GPUProcessManager::Get()) {
gpm->NotifyRemoteActorDestroyed(mProcessToken);
}
return;
}
AddRef();
SendCachedValues();
// Let Ui thread know the connection is open;
RecvToolbarAnimatorMessageFromCompositor(COMPOSITOR_CONTROLLER_OPEN);
}
void UiCompositorControllerChild::SendCachedValues() {
MOZ_ASSERT(mIsOpen);
if (mResize) {
SendResumeAndResize(mResize.ref().x, mResize.ref().y, mResize.ref().width,
mResize.ref().height);
mResize.reset();
}
if (mMaxToolbarHeight) {
SendMaxToolbarHeight(mMaxToolbarHeight.ref());
mMaxToolbarHeight.reset();
}
if (mDefaultClearColor) {
SendDefaultClearColor(mDefaultClearColor.ref());
mDefaultClearColor.reset();
}
if (mLayerUpdateEnabled) {
SendEnableLayerUpdateNotifications(mLayerUpdateEnabled.ref());
mLayerUpdateEnabled.reset();
}
}
} // namespace layers
} // namespace mozilla