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// 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/gpu_channel_manager.h"
#include "base/bind.h"
#include "content/common/child_thread.h"
#include "content/common/gpu/gpu_channel.h"
#include "content/common/gpu/gpu_messages.h"
GpuChannelManager::GpuChannelManager(ChildThread* gpu_child_thread,
GpuWatchdog* watchdog,
base::MessageLoopProxy* io_message_loop,
base::WaitableEvent* shutdown_event)
: ALLOW_THIS_IN_INITIALIZER_LIST(weak_factory_(this)),
io_message_loop_(io_message_loop),
shutdown_event_(shutdown_event),
gpu_child_thread_(gpu_child_thread),
watchdog_(watchdog) {
DCHECK(gpu_child_thread);
DCHECK(io_message_loop);
DCHECK(shutdown_event);
}
GpuChannelManager::~GpuChannelManager() {
gpu_channels_.clear();
}
void GpuChannelManager::RemoveChannel(int client_id) {
gpu_channels_.erase(client_id);
}
int GpuChannelManager::GenerateRouteID() {
static int last_id = 0;
return ++last_id;
}
void GpuChannelManager::AddRoute(int32 routing_id,
IPC::Channel::Listener* listener) {
gpu_child_thread_->AddRoute(routing_id, listener);
}
void GpuChannelManager::RemoveRoute(int32 routing_id) {
gpu_child_thread_->RemoveRoute(routing_id);
}
GpuChannel* GpuChannelManager::LookupChannel(int32 client_id) {
GpuChannelMap::const_iterator iter = gpu_channels_.find(client_id);
if (iter == gpu_channels_.end())
return NULL;
else
return iter->second;
}
bool GpuChannelManager::OnMessageReceived(const IPC::Message& msg) {
bool msg_is_ok = true;
bool handled = true;
IPC_BEGIN_MESSAGE_MAP_EX(GpuChannelManager, msg, msg_is_ok)
IPC_MESSAGE_HANDLER(GpuMsg_EstablishChannel, OnEstablishChannel)
IPC_MESSAGE_HANDLER(GpuMsg_CloseChannel, OnCloseChannel)
IPC_MESSAGE_HANDLER(GpuMsg_CreateViewCommandBuffer,
OnCreateViewCommandBuffer)
IPC_MESSAGE_UNHANDLED(handled = false)
IPC_END_MESSAGE_MAP_EX()
return handled;
}
bool GpuChannelManager::Send(IPC::Message* msg) {
return gpu_child_thread_->Send(msg);
}
void GpuChannelManager::OnEstablishChannel(int client_id, int share_client_id) {
IPC::ChannelHandle channel_handle;
gfx::GLShareGroup* share_group = NULL;
if (share_client_id) {
GpuChannel* share_channel = gpu_channels_[share_client_id];
DCHECK(share_channel);
share_group = share_channel->share_group();
}
scoped_refptr<GpuChannel> channel = new GpuChannel(this,
watchdog_,
share_group,
client_id,
false);
if (channel->Init(io_message_loop_, shutdown_event_)) {
gpu_channels_[client_id] = channel;
channel_handle.name = channel->GetChannelName();
#if defined(OS_POSIX)
// On POSIX, pass the renderer-side FD. Also mark it as auto-close so
// that it gets closed after it has been sent.
int renderer_fd = channel->TakeRendererFileDescriptor();
// Check the validity of |renderer_fd| for bug investigation. Replace with
// normal error handling after bug fixed. See for details: crbug.com/95732.
CHECK_NE(-1, renderer_fd);
channel_handle.socket = base::FileDescriptor(renderer_fd, true);
#endif
}
Send(new GpuHostMsg_ChannelEstablished(channel_handle));
}
void GpuChannelManager::OnCloseChannel(
const IPC::ChannelHandle& channel_handle) {
for (GpuChannelMap::iterator iter = gpu_channels_.begin();
iter != gpu_channels_.end(); ++iter) {
if (iter->second->GetChannelName() == channel_handle.name) {
gpu_channels_.erase(iter);
return;
}
}
}
void GpuChannelManager::OnCreateViewCommandBuffer(
gfx::PluginWindowHandle window,
int32 surface_id,
int32 client_id,
const GPUCreateCommandBufferConfig& init_params) {
DCHECK(surface_id);
int32 route_id = MSG_ROUTING_NONE;
GpuChannelMap::const_iterator iter = gpu_channels_.find(client_id);
if (iter != gpu_channels_.end()) {
iter->second->CreateViewCommandBuffer(
window, surface_id, init_params, &route_id);
}
Send(new GpuHostMsg_CommandBufferCreated(route_id));
}
void GpuChannelManager::LoseAllContexts() {
MessageLoop::current()->PostTask(
FROM_HERE,
base::Bind(&GpuChannelManager::OnLoseAllContexts,
weak_factory_.GetWeakPtr()));
}
void GpuChannelManager::OnLoseAllContexts() {
gpu_channels_.clear();
}
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