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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/RenderRootStateManager.h"
#include "mozilla/layers/WebRenderBridgeChild.h"
#include "mozilla/layers/WebRenderLayerManager.h"
namespace mozilla {
namespace layers {
// RenderRootStateManager shares its ref count with the WebRenderLayerManager
// that created it. You can think of the two classes as being one unit, except
// there are multiple RenderRootStateManagers per WebRenderLayerManager. Since
// we need to reference the WebRenderLayerManager and it needs to reference us,
// this avoids us needing to involve the cycle collector.
void RenderRootStateManager::AddRef() { mLayerManager->AddRef(); }
void RenderRootStateManager::Release() { mLayerManager->Release(); }
WebRenderBridgeChild* RenderRootStateManager::WrBridge() const {
return mLayerManager->WrBridge();
}
WebRenderCommandBuilder& RenderRootStateManager::CommandBuilder() {
return mLayerManager->CommandBuilder();
}
RenderRootStateManager::WebRenderUserDataRefTable*
RenderRootStateManager::GetWebRenderUserDataTable() {
return mLayerManager->GetWebRenderUserDataTable();
}
wr::IpcResourceUpdateQueue& RenderRootStateManager::AsyncResourceUpdates() {
MOZ_ASSERT(NS_IsMainThread());
if (!mAsyncResourceUpdates) {
mAsyncResourceUpdates.emplace(WrBridge());
RefPtr<Runnable> task = NewRunnableMethod(
"RenderRootStateManager::FlushAsyncResourceUpdates", this,
&RenderRootStateManager::FlushAsyncResourceUpdates);
NS_DispatchToMainThread(task.forget());
}
return mAsyncResourceUpdates.ref();
}
void RenderRootStateManager::Destroy() {
ClearAsyncAnimations();
if (WrBridge()) {
// Just clear ImageKeys, they are deleted during WebRenderAPI destruction.
DiscardLocalImages();
// CompositorAnimations are cleared by WebRenderBridgeParent.
mDiscardedCompositorAnimationsIds.Clear();
}
mActiveCompositorAnimationIds.clear();
mDestroyed = true;
}
void RenderRootStateManager::FlushAsyncResourceUpdates() {
MOZ_ASSERT(NS_IsMainThread());
if (!mAsyncResourceUpdates) {
return;
}
if (!IsDestroyed() && WrBridge()) {
WrBridge()->UpdateResources(mAsyncResourceUpdates.ref());
}
mAsyncResourceUpdates.reset();
}
void RenderRootStateManager::AddImageKeyForDiscard(wr::ImageKey key) {
mImageKeysToDelete.AppendElement(key);
}
void RenderRootStateManager::AddBlobImageKeyForDiscard(wr::BlobImageKey key) {
mBlobImageKeysToDelete.AppendElement(key);
}
void RenderRootStateManager::DiscardImagesInTransaction(
wr::IpcResourceUpdateQueue& aResources) {
for (const auto& key : mImageKeysToDelete) {
aResources.DeleteImage(key);
}
for (const auto& key : mBlobImageKeysToDelete) {
aResources.DeleteBlobImage(key);
}
mImageKeysToDelete.Clear();
mBlobImageKeysToDelete.Clear();
}
void RenderRootStateManager::DiscardLocalImages() {
// Removes images but doesn't tell the parent side about them
// This is useful in empty / failed transactions where we created
// image keys but didn't tell the parent about them yet.
mImageKeysToDelete.Clear();
mBlobImageKeysToDelete.Clear();
}
void RenderRootStateManager::ClearCachedResources() {
mActiveCompositorAnimationIds.clear();
mDiscardedCompositorAnimationsIds.Clear();
}
void RenderRootStateManager::AddActiveCompositorAnimationId(uint64_t aId) {
// In layers-free mode we track the active compositor animation ids on the
// client side so that we don't try to discard the same animation id multiple
// times. We could just ignore the multiple-discard on the parent side, but
// checking on the content side reduces IPC traffic.
mActiveCompositorAnimationIds.insert(aId);
}
void RenderRootStateManager::AddCompositorAnimationsIdForDiscard(uint64_t aId) {
if (mActiveCompositorAnimationIds.erase(aId)) {
// For layers-free ensure we don't try to discard an animation id that
// wasn't active. We also remove it from mActiveCompositorAnimationIds so we
// don't discard it again unless it gets re-activated.
mDiscardedCompositorAnimationsIds.AppendElement(aId);
}
}
void RenderRootStateManager::DiscardCompositorAnimations() {
if (WrBridge()->IPCOpen() && !mDiscardedCompositorAnimationsIds.IsEmpty()) {
WrBridge()->SendDeleteCompositorAnimations(
mDiscardedCompositorAnimationsIds);
}
mDiscardedCompositorAnimationsIds.Clear();
}
void RenderRootStateManager::RegisterAsyncAnimation(
const wr::ImageKey& aKey, SharedSurfacesAnimation* aAnimation) {
mAsyncAnimations.insert(std::make_pair(wr::AsUint64(aKey), aAnimation));
}
void RenderRootStateManager::DeregisterAsyncAnimation(
const wr::ImageKey& aKey) {
mAsyncAnimations.erase(wr::AsUint64(aKey));
}
void RenderRootStateManager::ClearAsyncAnimations() {
for (const auto& i : mAsyncAnimations) {
i.second->Invalidate(this);
}
mAsyncAnimations.clear();
}
void RenderRootStateManager::WrReleasedImages(
const nsTArray<wr::ExternalImageKeyPair>& aPairs) {
// A SharedSurfaceAnimation object's lifetime is tied to its owning
// ImageContainer. When the ImageContainer is released,
// SharedSurfaceAnimation::Destroy is called which should ensure it is removed
// from the layer manager. Whenever the namespace for the
// WebRenderLayerManager itself is invalidated (e.g. we changed windows, or
// were destroyed ourselves), we callback into the SharedSurfaceAnimation
// object to remove its image key for us and any bound surfaces. If, for any
// reason, we somehow missed an WrReleasedImages call before the animation
// was bound to the layer manager, it will free those associated surfaces on
// the next ReleasePreviousFrame call.
for (const auto& pair : aPairs) {
auto i = mAsyncAnimations.find(wr::AsUint64(pair.key));
if (i != mAsyncAnimations.end()) {
i->second->ReleasePreviousFrame(this, pair.id);
}
}
}
void RenderRootStateManager::AddWebRenderParentCommand(
const WebRenderParentCommand& aCmd) {
WrBridge()->AddWebRenderParentCommand(aCmd);
}
void RenderRootStateManager::UpdateResources(
wr::IpcResourceUpdateQueue& aResources) {
WrBridge()->UpdateResources(aResources);
}
void RenderRootStateManager::AddPipelineIdForCompositable(
const wr::PipelineId& aPipelineId, const CompositableHandle& aHandle,
CompositableHandleOwner aOwner) {
WrBridge()->AddPipelineIdForCompositable(aPipelineId, aHandle, aOwner);
}
void RenderRootStateManager::RemovePipelineIdForCompositable(
const wr::PipelineId& aPipelineId) {
WrBridge()->RemovePipelineIdForCompositable(aPipelineId);
}
/// Release TextureClient that is bounded to ImageKey.
/// It is used for recycling TextureClient.
void RenderRootStateManager::ReleaseTextureOfImage(const wr::ImageKey& aKey) {
WrBridge()->ReleaseTextureOfImage(aKey);
}
Maybe<wr::FontInstanceKey> RenderRootStateManager::GetFontKeyForScaledFont(
gfx::ScaledFont* aScaledFont, wr::IpcResourceUpdateQueue& aResources) {
return WrBridge()->GetFontKeyForScaledFont(aScaledFont, aResources);
}
Maybe<wr::FontKey> RenderRootStateManager::GetFontKeyForUnscaledFont(
gfx::UnscaledFont* aUnscaledFont, wr::IpcResourceUpdateQueue& aResources) {
return WrBridge()->GetFontKeyForUnscaledFont(aUnscaledFont, aResources);
}
} // namespace layers
} // namespace mozilla
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