1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/layers/ipc/LayerTransactionChild.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,113 @@
1.4 +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
1.5 + * vim: sw=2 ts=8 et :
1.6 + */
1.7 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.8 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.9 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.10 +
1.11 +#include "LayerTransactionChild.h"
1.12 +#include "mozilla/layers/CompositableClient.h" // for CompositableChild
1.13 +#include "mozilla/layers/LayersSurfaces.h" // for PGrallocBufferChild
1.14 +#include "mozilla/layers/PCompositableChild.h" // for PCompositableChild
1.15 +#include "mozilla/layers/PLayerChild.h" // for PLayerChild
1.16 +#include "mozilla/mozalloc.h" // for operator delete, etc
1.17 +#include "nsDebug.h" // for NS_RUNTIMEABORT, etc
1.18 +#include "nsTArray.h" // for nsTArray
1.19 +#include "mozilla/layers/TextureClient.h"
1.20 +
1.21 +namespace mozilla {
1.22 +namespace layers {
1.23 +
1.24 +class PGrallocBufferChild;
1.25 +
1.26 +void
1.27 +LayerTransactionChild::Destroy()
1.28 +{
1.29 + NS_ABORT_IF_FALSE(0 == ManagedPLayerChild().Length(),
1.30 + "layers should have been cleaned up by now");
1.31 + PLayerTransactionChild::Send__delete__(this);
1.32 + // WARNING: |this| has gone to the great heap in the sky
1.33 +}
1.34 +
1.35 +PGrallocBufferChild*
1.36 +LayerTransactionChild::AllocPGrallocBufferChild(const IntSize&,
1.37 + const uint32_t&,
1.38 + const uint32_t&,
1.39 + MaybeMagicGrallocBufferHandle*)
1.40 +{
1.41 +#ifdef MOZ_HAVE_SURFACEDESCRIPTORGRALLOC
1.42 + return GrallocBufferActor::Create();
1.43 +#else
1.44 + NS_RUNTIMEABORT("No gralloc buffers for you");
1.45 + return nullptr;
1.46 +#endif
1.47 +}
1.48 +
1.49 +bool
1.50 +LayerTransactionChild::DeallocPGrallocBufferChild(PGrallocBufferChild* actor)
1.51 +{
1.52 +#ifdef MOZ_HAVE_SURFACEDESCRIPTORGRALLOC
1.53 + delete actor;
1.54 + return true;
1.55 +#else
1.56 + NS_RUNTIMEABORT("Um, how did we get here?");
1.57 + return false;
1.58 +#endif
1.59 +}
1.60 +
1.61 +PLayerChild*
1.62 +LayerTransactionChild::AllocPLayerChild()
1.63 +{
1.64 + // we always use the "power-user" ctor
1.65 + NS_RUNTIMEABORT("not reached");
1.66 + return nullptr;
1.67 +}
1.68 +
1.69 +bool
1.70 +LayerTransactionChild::DeallocPLayerChild(PLayerChild* actor)
1.71 +{
1.72 + delete actor;
1.73 + return true;
1.74 +}
1.75 +
1.76 +PCompositableChild*
1.77 +LayerTransactionChild::AllocPCompositableChild(const TextureInfo& aInfo)
1.78 +{
1.79 + return CompositableClient::CreateIPDLActor();
1.80 +}
1.81 +
1.82 +bool
1.83 +LayerTransactionChild::DeallocPCompositableChild(PCompositableChild* actor)
1.84 +{
1.85 + return CompositableClient::DestroyIPDLActor(actor);
1.86 +}
1.87 +
1.88 +void
1.89 +LayerTransactionChild::ActorDestroy(ActorDestroyReason why)
1.90 +{
1.91 +#ifdef MOZ_B2G
1.92 + // Due to poor lifetime management of gralloc (and possibly shmems) we will
1.93 + // crash at some point in the future when we get destroyed due to abnormal
1.94 + // shutdown. Its better just to crash here. On desktop though, we have a chance
1.95 + // of recovering.
1.96 + if (why == AbnormalShutdown) {
1.97 + NS_RUNTIMEABORT("ActorDestroy by IPC channel failure at LayerTransactionChild");
1.98 + }
1.99 +#endif
1.100 +}
1.101 +
1.102 +PTextureChild*
1.103 +LayerTransactionChild::AllocPTextureChild(const SurfaceDescriptor&,
1.104 + const TextureFlags&)
1.105 +{
1.106 + return TextureClient::CreateIPDLActor();
1.107 +}
1.108 +
1.109 +bool
1.110 +LayerTransactionChild::DeallocPTextureChild(PTextureChild* actor)
1.111 +{
1.112 + return TextureClient::DestroyIPDLActor(actor);
1.113 +}
1.114 +
1.115 +} // namespace layers
1.116 +} // namespace mozilla
