Move content/common/gpu/client to gpu/ipc/client

content/common/gpu/client/gpu_channel_host.cc

Index: content/common/gpu/client/gpu_channel_host.cc
diff --git a/content/common/gpu/client/gpu_channel_host.cc b/content/common/gpu/client/gpu_channel_host.cc
deleted file mode 100644
index 9c8e09f570f529af66b6a6a1df0df3d75a3cdc3b..0000000000000000000000000000000000000000
--- a/content/common/gpu/client/gpu_channel_host.cc
+++ /dev/null
@@ -1,481 +0,0 @@
-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "content/common/gpu/client/gpu_channel_host.h"
-
-#include <algorithm>
-#include <utility>
-
-#include "base/atomic_sequence_num.h"
-#include "base/bind.h"
-#include "base/location.h"
-#include "base/posix/eintr_wrapper.h"
-#include "base/profiler/scoped_tracker.h"
-#include "base/single_thread_task_runner.h"
-#include "base/thread_task_runner_handle.h"
-#include "base/threading/thread_restrictions.h"
-#include "base/trace_event/trace_event.h"
-#include "build/build_config.h"
-#include "content/common/gpu/client/command_buffer_proxy_impl.h"
-#include "gpu/ipc/common/gpu_messages.h"
-#include "gpu/ipc/common/gpu_param_traits_macros.h"
-#include "ipc/ipc_sync_message_filter.h"
-#include "url/gurl.h"
-
-using base::AutoLock;
-
-namespace content {
-namespace {
-
-// Global atomic to generate unique transfer buffer IDs.
-base::StaticAtomicSequenceNumber g_next_transfer_buffer_id;
-
-}  // namespace
-
-GpuChannelHost::StreamFlushInfo::StreamFlushInfo()
-    : next_stream_flush_id(1),
-      flushed_stream_flush_id(0),
-      verified_stream_flush_id(0),
-      flush_pending(false),
-      route_id(MSG_ROUTING_NONE),
-      put_offset(0),
-      flush_count(0),
-      flush_id(0) {}
-
-GpuChannelHost::StreamFlushInfo::StreamFlushInfo(const StreamFlushInfo& other) =
-    default;
-
-GpuChannelHost::StreamFlushInfo::~StreamFlushInfo() {}
-
-// static
-scoped_refptr<GpuChannelHost> GpuChannelHost::Create(
-    GpuChannelHostFactory* factory,
-    int channel_id,
-    const gpu::GPUInfo& gpu_info,
-    const IPC::ChannelHandle& channel_handle,
-    base::WaitableEvent* shutdown_event,
-    gpu::GpuMemoryBufferManager* gpu_memory_buffer_manager) {
-  DCHECK(factory->IsMainThread());
-  scoped_refptr<GpuChannelHost> host =
-      new GpuChannelHost(factory, channel_id, gpu_info,
-                         gpu_memory_buffer_manager);
-  host->Connect(channel_handle, shutdown_event);
-  return host;
-}
-
-GpuChannelHost::GpuChannelHost(
-    GpuChannelHostFactory* factory,
-    int channel_id,
-    const gpu::GPUInfo& gpu_info,
-    gpu::GpuMemoryBufferManager* gpu_memory_buffer_manager)
-    : factory_(factory),
-      channel_id_(channel_id),
-      gpu_info_(gpu_info),
-      gpu_memory_buffer_manager_(gpu_memory_buffer_manager) {
-  next_image_id_.GetNext();
-  next_route_id_.GetNext();
-  next_stream_id_.GetNext();
-}
-
-void GpuChannelHost::Connect(const IPC::ChannelHandle& channel_handle,
-                             base::WaitableEvent* shutdown_event) {
-  DCHECK(factory_->IsMainThread());
-  // Open a channel to the GPU process. We pass nullptr as the main listener
-  // here since we need to filter everything to route it to the right thread.
-  scoped_refptr<base::SingleThreadTaskRunner> io_task_runner =
-      factory_->GetIOThreadTaskRunner();
-  channel_ = IPC::SyncChannel::Create(channel_handle, IPC::Channel::MODE_CLIENT,
-                                      nullptr, io_task_runner.get(), true,
-                                      shutdown_event);
-
-  sync_filter_ = channel_->CreateSyncMessageFilter();
-
-  channel_filter_ = new MessageFilter();
-
-  // Install the filter last, because we intercept all leftover
-  // messages.
-  channel_->AddFilter(channel_filter_.get());
-}
-
-bool GpuChannelHost::Send(IPC::Message* msg) {
-  // Callee takes ownership of message, regardless of whether Send is
-  // successful. See IPC::Sender.
-  scoped_ptr<IPC::Message> message(msg);
-  // The GPU process never sends synchronous IPCs so clear the unblock flag to
-  // preserve order.
-  message->set_unblock(false);
-
-  // Currently we need to choose between two different mechanisms for sending.
-  // On the main thread we use the regular channel Send() method, on another
-  // thread we use SyncMessageFilter. We also have to be careful interpreting
-  // IsMainThread() since it might return false during shutdown,
-  // impl we are actually calling from the main thread (discard message then).
-  //
-  // TODO: Can we just always use sync_filter_ since we setup the channel
-  //       without a main listener?
-  if (factory_->IsMainThread()) {
-    // channel_ is only modified on the main thread, so we don't need to take a
-    // lock here.
-    if (!channel_) {
-      DVLOG(1) << "GpuChannelHost::Send failed: Channel already destroyed";
-      return false;
-    }
-    // http://crbug.com/125264
-    base::ThreadRestrictions::ScopedAllowWait allow_wait;
-    bool result = channel_->Send(message.release());
-    if (!result)
-      DVLOG(1) << "GpuChannelHost::Send failed: Channel::Send failed";
-    return result;
-  }
-
-  bool result = sync_filter_->Send(message.release());
-  return result;
-}
-
-uint32_t GpuChannelHost::OrderingBarrier(
-    int32_t route_id,
-    int32_t stream_id,
-    int32_t put_offset,
-    uint32_t flush_count,
-    const std::vector<ui::LatencyInfo>& latency_info,
-    bool put_offset_changed,
-    bool do_flush) {
-  AutoLock lock(context_lock_);
-  StreamFlushInfo& flush_info = stream_flush_info_[stream_id];
-  if (flush_info.flush_pending && flush_info.route_id != route_id)
-    InternalFlush(&flush_info);
-
-  if (put_offset_changed) {
-    const uint32_t flush_id = flush_info.next_stream_flush_id++;
-    flush_info.flush_pending = true;
-    flush_info.route_id = route_id;
-    flush_info.put_offset = put_offset;
-    flush_info.flush_count = flush_count;
-    flush_info.flush_id = flush_id;
-    flush_info.latency_info.insert(flush_info.latency_info.end(),
-                                   latency_info.begin(), latency_info.end());
-
-    if (do_flush)
-      InternalFlush(&flush_info);
-
-    return flush_id;
-  }
-  return 0;
-}
-
-void GpuChannelHost::FlushPendingStream(int32_t stream_id) {
-  AutoLock lock(context_lock_);
-  auto flush_info_iter = stream_flush_info_.find(stream_id);
-  if (flush_info_iter == stream_flush_info_.end())
-    return;
-
-  StreamFlushInfo& flush_info = flush_info_iter->second;
-  if (flush_info.flush_pending)
-    InternalFlush(&flush_info);
-}
-
-void GpuChannelHost::InternalFlush(StreamFlushInfo* flush_info) {
-  context_lock_.AssertAcquired();
-  DCHECK(flush_info);
-  DCHECK(flush_info->flush_pending);
-  DCHECK_LT(flush_info->flushed_stream_flush_id, flush_info->flush_id);
-  Send(new GpuCommandBufferMsg_AsyncFlush(
-      flush_info->route_id, flush_info->put_offset, flush_info->flush_count,
-      flush_info->latency_info));
-  flush_info->latency_info.clear();
-  flush_info->flush_pending = false;
-
-  flush_info->flushed_stream_flush_id = flush_info->flush_id;
-}
-
-scoped_ptr<CommandBufferProxyImpl> GpuChannelHost::CreateCommandBuffer(
-    gpu::SurfaceHandle surface_handle,
-    const gfx::Size& size,
-    CommandBufferProxyImpl* share_group,
-    int32_t stream_id,
-    gpu::GpuStreamPriority stream_priority,
-    const std::vector<int32_t>& attribs,
-    const GURL& active_url,
-    gfx::GpuPreference gpu_preference) {
-  DCHECK(!share_group || (stream_id == share_group->stream_id()));
-  TRACE_EVENT1("gpu", "GpuChannelHost::CreateViewCommandBuffer",
-               "surface_handle", surface_handle);
-
-  GPUCreateCommandBufferConfig init_params;
-  init_params.share_group_id =
-      share_group ? share_group->route_id() : MSG_ROUTING_NONE;
-  init_params.stream_id = stream_id;
-  init_params.stream_priority = stream_priority;
-  init_params.attribs = attribs;
-  init_params.active_url = active_url;
-  init_params.gpu_preference = gpu_preference;
-
-  int32_t route_id = GenerateRouteID();
-
-  // TODO(vadimt): Remove ScopedTracker below once crbug.com/125248 is fixed.
-  tracked_objects::ScopedTracker tracking_profile(
-      FROM_HERE_WITH_EXPLICIT_FUNCTION(
-          "125248 GpuChannelHost::CreateCommandBuffer"));
-
-  // We're blocking the UI thread, which is generally undesirable.
-  // In this case we need to wait for this before we can show any UI /anyway/,
-  // so it won't cause additional jank.
-  // TODO(piman): Make this asynchronous (http://crbug.com/125248).
-
-  bool succeeded = false;
-  if (!Send(new GpuChannelMsg_CreateCommandBuffer(
-          surface_handle, size, init_params, route_id, &succeeded))) {
-    LOG(ERROR) << "Failed to send GpuChannelMsg_CreateCommandBuffer.";
-    return nullptr;
-  }
-
-  if (!succeeded) {
-    LOG(ERROR) << "GpuChannelMsg_CreateCommandBuffer returned failure.";
-    return nullptr;
-  }
-
-  scoped_ptr<CommandBufferProxyImpl> command_buffer =
-      make_scoped_ptr(new CommandBufferProxyImpl(this, route_id, stream_id));
-  AddRoute(route_id, command_buffer->AsWeakPtr());
-
-  return command_buffer;
-}
-
-void GpuChannelHost::DestroyCommandBuffer(
-    CommandBufferProxyImpl* command_buffer) {
-  TRACE_EVENT0("gpu", "GpuChannelHost::DestroyCommandBuffer");
-
-  int32_t route_id = command_buffer->route_id();
-  int32_t stream_id = command_buffer->stream_id();
-  Send(new GpuChannelMsg_DestroyCommandBuffer(route_id));
-  RemoveRoute(route_id);
-
-  AutoLock lock(context_lock_);
-  StreamFlushInfo& flush_info = stream_flush_info_[stream_id];
-  if (flush_info.flush_pending && flush_info.route_id == route_id)
-    flush_info.flush_pending = false;
-}
-
-void GpuChannelHost::DestroyChannel() {
-  DCHECK(factory_->IsMainThread());
-  AutoLock lock(context_lock_);
-  channel_.reset();
-}
-
-void GpuChannelHost::AddRoute(
-    int route_id, base::WeakPtr<IPC::Listener> listener) {
-  AddRouteWithTaskRunner(route_id, listener,
-                         base::ThreadTaskRunnerHandle::Get());
-}
-
-void GpuChannelHost::AddRouteWithTaskRunner(
-    int route_id,
-    base::WeakPtr<IPC::Listener> listener,
-    scoped_refptr<base::SingleThreadTaskRunner> task_runner) {
-  scoped_refptr<base::SingleThreadTaskRunner> io_task_runner =
-      factory_->GetIOThreadTaskRunner();
-  io_task_runner->PostTask(
-      FROM_HERE,
-      base::Bind(&GpuChannelHost::MessageFilter::AddRoute,
-                 channel_filter_.get(), route_id, listener, task_runner));
-}
-
-void GpuChannelHost::RemoveRoute(int route_id) {
-  scoped_refptr<base::SingleThreadTaskRunner> io_task_runner =
-      factory_->GetIOThreadTaskRunner();
-  io_task_runner->PostTask(
-      FROM_HERE, base::Bind(&GpuChannelHost::MessageFilter::RemoveRoute,
-                            channel_filter_.get(), route_id));
-}
-
-base::SharedMemoryHandle GpuChannelHost::ShareToGpuProcess(
-    base::SharedMemoryHandle source_handle) {
-  if (IsLost())
-    return base::SharedMemory::NULLHandle();
-
-  return base::SharedMemory::DuplicateHandle(source_handle);
-}
-
-int32_t GpuChannelHost::ReserveTransferBufferId() {
-  // 0 is a reserved value.
-  return g_next_transfer_buffer_id.GetNext() + 1;
-}
-
-gfx::GpuMemoryBufferHandle GpuChannelHost::ShareGpuMemoryBufferToGpuProcess(
-    const gfx::GpuMemoryBufferHandle& source_handle,
-    bool* requires_sync_point) {
-  switch (source_handle.type) {
-    case gfx::SHARED_MEMORY_BUFFER: {
-      gfx::GpuMemoryBufferHandle handle;
-      handle.type = gfx::SHARED_MEMORY_BUFFER;
-      handle.handle = ShareToGpuProcess(source_handle.handle);
-      handle.offset = source_handle.offset;
-      handle.stride = source_handle.stride;
-      *requires_sync_point = false;
-      return handle;
-    }
-    case gfx::IO_SURFACE_BUFFER:
-    case gfx::SURFACE_TEXTURE_BUFFER:
-    case gfx::OZONE_NATIVE_PIXMAP:
-      *requires_sync_point = true;
-      return source_handle;
-    default:
-      NOTREACHED();
-      return gfx::GpuMemoryBufferHandle();
-  }
-}
-
-int32_t GpuChannelHost::ReserveImageId() {
-  return next_image_id_.GetNext();
-}
-
-int32_t GpuChannelHost::GenerateRouteID() {
-  return next_route_id_.GetNext();
-}
-
-int32_t GpuChannelHost::GenerateStreamID() {
-  const int32_t stream_id = next_stream_id_.GetNext();
-  DCHECK_NE(0, stream_id);
-  DCHECK_NE(kDefaultStreamId, stream_id);
-  return stream_id;
-}
-
-uint32_t GpuChannelHost::ValidateFlushIDReachedServer(int32_t stream_id,
-                                                      bool force_validate) {
-  // Store what flush ids we will be validating for all streams.
-  base::hash_map<int32_t, uint32_t> validate_flushes;
-  uint32_t flushed_stream_flush_id = 0;
-  uint32_t verified_stream_flush_id = 0;
-  {
-    AutoLock lock(context_lock_);
-    for (const auto& iter : stream_flush_info_) {
-      const int32_t iter_stream_id = iter.first;
-      const StreamFlushInfo& flush_info = iter.second;
-      if (iter_stream_id == stream_id) {
-        flushed_stream_flush_id = flush_info.flushed_stream_flush_id;
-        verified_stream_flush_id = flush_info.verified_stream_flush_id;
-      }
-
-      if (flush_info.flushed_stream_flush_id >
-          flush_info.verified_stream_flush_id) {
-        validate_flushes.insert(
-            std::make_pair(iter_stream_id, flush_info.flushed_stream_flush_id));
-      }
-    }
-  }
-
-  if (!force_validate && flushed_stream_flush_id == verified_stream_flush_id) {
-    // Current stream has no unverified flushes.
-    return verified_stream_flush_id;
-  }
-
-  if (Send(new GpuChannelMsg_Nop())) {
-    // Update verified flush id for all streams.
-    uint32_t highest_flush_id = 0;
-    AutoLock lock(context_lock_);
-    for (const auto& iter : validate_flushes) {
-      const int32_t validated_stream_id = iter.first;
-      const uint32_t validated_flush_id = iter.second;
-      StreamFlushInfo& flush_info = stream_flush_info_[validated_stream_id];
-      if (flush_info.verified_stream_flush_id < validated_flush_id) {
-        flush_info.verified_stream_flush_id = validated_flush_id;
-      }
-
-      if (validated_stream_id == stream_id)
-        highest_flush_id = flush_info.verified_stream_flush_id;
-    }
-
-    return highest_flush_id;
-  }
-
-  return 0;
-}
-
-uint32_t GpuChannelHost::GetHighestValidatedFlushID(int32_t stream_id) {
-  AutoLock lock(context_lock_);
-  StreamFlushInfo& flush_info = stream_flush_info_[stream_id];
-  return flush_info.verified_stream_flush_id;
-}
-
-GpuChannelHost::~GpuChannelHost() {
-#if DCHECK_IS_ON()
-  AutoLock lock(context_lock_);
-  DCHECK(!channel_)
-      << "GpuChannelHost::DestroyChannel must be called before destruction.";
-#endif
-}
-
-GpuChannelHost::MessageFilter::ListenerInfo::ListenerInfo() {}
-
-GpuChannelHost::MessageFilter::ListenerInfo::ListenerInfo(
-    const ListenerInfo& other) = default;
-
-GpuChannelHost::MessageFilter::ListenerInfo::~ListenerInfo() {}
-
-GpuChannelHost::MessageFilter::MessageFilter()
-    : lost_(false) {
-}
-
-GpuChannelHost::MessageFilter::~MessageFilter() {}
-
-void GpuChannelHost::MessageFilter::AddRoute(
-    int32_t route_id,
-    base::WeakPtr<IPC::Listener> listener,
-    scoped_refptr<base::SingleThreadTaskRunner> task_runner) {
-  DCHECK(listeners_.find(route_id) == listeners_.end());
-  DCHECK(task_runner);
-  ListenerInfo info;
-  info.listener = listener;
-  info.task_runner = task_runner;
-  listeners_[route_id] = info;
-}
-
-void GpuChannelHost::MessageFilter::RemoveRoute(int32_t route_id) {
-  listeners_.erase(route_id);
-}
-
-bool GpuChannelHost::MessageFilter::OnMessageReceived(
-    const IPC::Message& message) {
-  // Never handle sync message replies or we will deadlock here.
-  if (message.is_reply())
-    return false;
-
-  auto it = listeners_.find(message.routing_id());
-  if (it == listeners_.end())
-    return false;
-
-  const ListenerInfo& info = it->second;
-  info.task_runner->PostTask(
-      FROM_HERE,
-      base::Bind(base::IgnoreResult(&IPC::Listener::OnMessageReceived),
-                 info.listener, message));
-  return true;
-}
-
-void GpuChannelHost::MessageFilter::OnChannelError() {
-  // Set the lost state before signalling the proxies. That way, if they
-  // themselves post a task to recreate the context, they will not try to re-use
-  // this channel host.
-  {
-    AutoLock lock(lock_);
-    lost_ = true;
-  }
-
-  // Inform all the proxies that an error has occurred. This will be reported
-  // via OpenGL as a lost context.
-  for (const auto& kv : listeners_) {
-    const ListenerInfo& info = kv.second;
-    info.task_runner->PostTask(
-        FROM_HERE, base::Bind(&IPC::Listener::OnChannelError, info.listener));
-  }
-
-  listeners_.clear();
-}
-
-bool GpuChannelHost::MessageFilter::IsLost() const {
-  AutoLock lock(lock_);
-  return lost_;
-}
-
-}  // namespace content