mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-06 00:55:37 +00:00
131 lines
3.9 KiB
C++
131 lines
3.9 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
|
|
* vim: sw=2 ts=8 et :
|
|
*/
|
|
/* 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 "LayerTransactionChild.h"
|
|
#include "mozilla/layers/CompositableClient.h" // for CompositableChild
|
|
#include "mozilla/layers/PCompositableChild.h" // for PCompositableChild
|
|
#include "mozilla/layers/PLayerChild.h" // for PLayerChild
|
|
#include "mozilla/layers/ShadowLayers.h" // for ShadowLayerForwarder
|
|
#include "mozilla/mozalloc.h" // for operator delete, etc
|
|
#include "nsDebug.h" // for NS_RUNTIMEABORT, etc
|
|
#include "nsTArray.h" // for nsTArray
|
|
#include "mozilla/layers/TextureClient.h"
|
|
|
|
namespace mozilla {
|
|
namespace layers {
|
|
|
|
|
|
void
|
|
LayerTransactionChild::Destroy()
|
|
{
|
|
if (!IPCOpen() || mDestroyed) {
|
|
return;
|
|
}
|
|
// mDestroyed is used to prevent calling Send__delete__() twice.
|
|
// When this function is called from CompositorChild::Destroy(),
|
|
// under Send__delete__() call, this function is called from
|
|
// ShadowLayerForwarder's destructor.
|
|
// When it happens, IPCOpen() is still true.
|
|
// See bug 1004191.
|
|
mDestroyed = true;
|
|
NS_ABORT_IF_FALSE(0 == ManagedPLayerChild().Length(),
|
|
"layers should have been cleaned up by now");
|
|
PLayerTransactionChild::Send__delete__(this);
|
|
}
|
|
|
|
|
|
PLayerChild*
|
|
LayerTransactionChild::AllocPLayerChild()
|
|
{
|
|
// we always use the "power-user" ctor
|
|
NS_RUNTIMEABORT("not reached");
|
|
return nullptr;
|
|
}
|
|
|
|
bool
|
|
LayerTransactionChild::DeallocPLayerChild(PLayerChild* actor)
|
|
{
|
|
delete actor;
|
|
return true;
|
|
}
|
|
|
|
PCompositableChild*
|
|
LayerTransactionChild::AllocPCompositableChild(const TextureInfo& aInfo)
|
|
{
|
|
return CompositableClient::CreateIPDLActor();
|
|
}
|
|
|
|
bool
|
|
LayerTransactionChild::DeallocPCompositableChild(PCompositableChild* actor)
|
|
{
|
|
return CompositableClient::DestroyIPDLActor(actor);
|
|
}
|
|
|
|
bool
|
|
LayerTransactionChild::RecvParentAsyncMessage(const InfallibleTArray<AsyncParentMessageData>& aMessages)
|
|
{
|
|
for (AsyncParentMessageArray::index_type i = 0; i < aMessages.Length(); ++i) {
|
|
const AsyncParentMessageData& message = aMessages[i];
|
|
|
|
switch (message.type()) {
|
|
case AsyncParentMessageData::TOpDeliverFence: {
|
|
const OpDeliverFence& op = message.get_OpDeliverFence();
|
|
FenceHandle fence = op.fence();
|
|
PTextureChild* child = op.textureChild();
|
|
|
|
RefPtr<TextureClient> texture = TextureClient::AsTextureClient(child);
|
|
if (texture) {
|
|
texture->SetReleaseFenceHandle(fence);
|
|
}
|
|
if (mForwarder) {
|
|
mForwarder->HoldTransactionsToRespond(op.transactionId());
|
|
} else {
|
|
// Send back a response.
|
|
InfallibleTArray<AsyncChildMessageData> replies;
|
|
replies.AppendElement(OpReplyDeliverFence(op.transactionId()));
|
|
SendChildAsyncMessages(replies);
|
|
}
|
|
break;
|
|
}
|
|
default:
|
|
NS_ERROR("unknown AsyncParentMessageData type");
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
void
|
|
LayerTransactionChild::ActorDestroy(ActorDestroyReason why)
|
|
{
|
|
#ifdef MOZ_B2G
|
|
// Due to poor lifetime management of gralloc (and possibly shmems) we will
|
|
// crash at some point in the future when we get destroyed due to abnormal
|
|
// shutdown. Its better just to crash here. On desktop though, we have a chance
|
|
// of recovering.
|
|
if (why == AbnormalShutdown) {
|
|
NS_RUNTIMEABORT("ActorDestroy by IPC channel failure at LayerTransactionChild");
|
|
}
|
|
#endif
|
|
}
|
|
|
|
PTextureChild*
|
|
LayerTransactionChild::AllocPTextureChild(const SurfaceDescriptor&,
|
|
const TextureFlags&)
|
|
{
|
|
return TextureClient::CreateIPDLActor();
|
|
}
|
|
|
|
bool
|
|
LayerTransactionChild::DeallocPTextureChild(PTextureChild* actor)
|
|
{
|
|
return TextureClient::DestroyIPDLActor(actor);
|
|
}
|
|
|
|
} // namespace layers
|
|
} // namespace mozilla
|