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/* -*- 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/gfx/Logging.h"
#include "mozilla/layers/CompositableChild.h"
#include "mozilla/layers/PCompositableChild.h" // for PCompositableChild
#include "mozilla/layers/PLayerChild.h" // for PLayerChild
#include "mozilla/layers/PImageContainerChild.h"
#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()) {
return;
}
// mDestroyed is used to prevent calling Send__delete__() twice.
// When this function is called from CompositorBridgeChild::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;
SendShutdown();
}
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)
{
MOZ_ASSERT(!mDestroyed);
return CompositableChild::CreateActor();
}
bool
LayerTransactionChild::DeallocPCompositableChild(PCompositableChild* actor)
{
CompositableChild::DestroyActor(actor);
return true;
}
void
LayerTransactionChild::ActorDestroy(ActorDestroyReason why)
{
mDestroyed = true;
#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
}
} // namespace layers
} // namespace mozilla
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