content/common/gpu/gpu_channel_manager.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "content/common/gpu/gpu_channel_manager.h"
   6
   7 #include "base/bind.h"
   8 #include "base/command_line.h"
   9 #include "base/location.h"
  10 #include "base/single_thread_task_runner.h"
  11 #include "base/thread_task_runner_handle.h"
  12 #include "content/common/gpu/gpu_channel.h"
  13 #include "content/common/gpu/gpu_memory_buffer_factory.h"
  14 #include "content/common/gpu/gpu_memory_manager.h"
  15 #include "content/common/gpu/gpu_messages.h"
  16 #include "content/common/message_router.h"
  17 #include "gpu/command_buffer/common/value_state.h"
  18 #include "gpu/command_buffer/service/feature_info.h"
  19 #include "gpu/command_buffer/service/gpu_switches.h"
  20 #include "gpu/command_buffer/service/mailbox_manager.h"
  21 #include "gpu/command_buffer/service/memory_program_cache.h"
  22 #include "gpu/command_buffer/service/shader_translator_cache.h"
  23 #include "gpu/command_buffer/service/sync_point_manager.h"
  24 #include "ipc/message_filter.h"
  25 #include "ui/gl/gl_bindings.h"
  26 #include "ui/gl/gl_share_group.h"
  27
  28 namespace content {
  29
  30 GpuChannelManager::GpuChannelManager(
  31     MessageRouter* router,
  32     GpuWatchdog* watchdog,
  33     base::SingleThreadTaskRunner* io_task_runner,
  34     base::WaitableEvent* shutdown_event,
  35     IPC::SyncChannel* channel,
  36     IPC::AttachmentBroker* broker,
  37     gpu::SyncPointManager* sync_point_manager,
  38     GpuMemoryBufferFactory* gpu_memory_buffer_factory)
  39     : io_task_runner_(io_task_runner),
  40       shutdown_event_(shutdown_event),
  41       router_(router),
  42       gpu_memory_manager_(
  43           this,
  44           GpuMemoryManager::kDefaultMaxSurfacesWithFrontbufferSoftLimit),
  45       watchdog_(watchdog),
  46       sync_point_manager_(sync_point_manager),
  47       gpu_memory_buffer_factory_(gpu_memory_buffer_factory),
  48       channel_(channel),
  49       attachment_broker_(broker),
  50       weak_factory_(this) {
  51   DCHECK(router_);
  52   DCHECK(io_task_runner);
  53   DCHECK(shutdown_event);
  54 }
  55
  56 GpuChannelManager::~GpuChannelManager() {
  57   gpu_channels_.clear();
  58   if (default_offscreen_surface_.get()) {
  59     default_offscreen_surface_->Destroy();
  60     default_offscreen_surface_ = NULL;
  61   }
  62 }
  63
  64 gpu::gles2::ProgramCache* GpuChannelManager::program_cache() {
  65   if (!program_cache_.get() &&
  66       (gfx::g_driver_gl.ext.b_GL_ARB_get_program_binary ||
  67        gfx::g_driver_gl.ext.b_GL_OES_get_program_binary) &&
  68       !base::CommandLine::ForCurrentProcess()->HasSwitch(
  69           switches::kDisableGpuProgramCache)) {
  70     program_cache_.reset(new gpu::gles2::MemoryProgramCache());
  71   }
  72   return program_cache_.get();
  73 }
  74
  75 gpu::gles2::ShaderTranslatorCache*
  76 GpuChannelManager::shader_translator_cache() {
  77   if (!shader_translator_cache_.get())
  78     shader_translator_cache_ = new gpu::gles2::ShaderTranslatorCache;
  79   return shader_translator_cache_.get();
  80 }
  81
  82 void GpuChannelManager::RemoveChannel(int client_id) {
  83   Send(new GpuHostMsg_DestroyChannel(client_id));
  84   gpu_channels_.erase(client_id);
  85 }
  86
  87 int GpuChannelManager::GenerateRouteID() {
  88   static int last_id = 0;
  89   return ++last_id;
  90 }
  91
  92 void GpuChannelManager::AddRoute(int32 routing_id, IPC::Listener* listener) {
  93   router_->AddRoute(routing_id, listener);
  94 }
  95
  96 void GpuChannelManager::RemoveRoute(int32 routing_id) {
  97   router_->RemoveRoute(routing_id);
  98 }
  99
 100 GpuChannel* GpuChannelManager::LookupChannel(int32 client_id) {
 101   GpuChannelMap::const_iterator iter = gpu_channels_.find(client_id);
 102   if (iter == gpu_channels_.end())
 103     return NULL;
 104   else
 105     return iter->second;
 106 }
 107
 108 bool GpuChannelManager::OnMessageReceived(const IPC::Message& msg) {
 109   bool handled = true;
 110   IPC_BEGIN_MESSAGE_MAP(GpuChannelManager, msg)
 111     IPC_MESSAGE_HANDLER(GpuMsg_EstablishChannel, OnEstablishChannel)
 112     IPC_MESSAGE_HANDLER(GpuMsg_CloseChannel, OnCloseChannel)
 113     IPC_MESSAGE_HANDLER(GpuMsg_CreateViewCommandBuffer,
 114                         OnCreateViewCommandBuffer)
 115     IPC_MESSAGE_HANDLER(GpuMsg_DestroyGpuMemoryBuffer, OnDestroyGpuMemoryBuffer)
 116     IPC_MESSAGE_HANDLER(GpuMsg_LoadedShader, OnLoadedShader)
 117     IPC_MESSAGE_HANDLER(GpuMsg_Finalize, OnFinalize)
 118     IPC_MESSAGE_HANDLER(GpuMsg_UpdateValueState, OnUpdateValueState)
 119     IPC_MESSAGE_UNHANDLED(handled = false)
 120   IPC_END_MESSAGE_MAP()
 121   return handled;
 122 }
 123
 124 bool GpuChannelManager::Send(IPC::Message* msg) { return router_->Send(msg); }
 125
 126 void GpuChannelManager::OnEstablishChannel(int client_id,
 127                                            uint64_t client_tracing_id,
 128                                            bool share_context,
 129                                            bool allow_future_sync_points) {
 130   IPC::ChannelHandle channel_handle;
 131
 132   gfx::GLShareGroup* share_group = NULL;
 133   gpu::gles2::MailboxManager* mailbox_manager = NULL;
 134   if (share_context) {
 135     if (!share_group_.get()) {
 136       share_group_ = new gfx::GLShareGroup;
 137       DCHECK(!mailbox_manager_.get());
 138       mailbox_manager_ = gpu::gles2::MailboxManager::Create();
 139     }
 140     share_group = share_group_.get();
 141     mailbox_manager = mailbox_manager_.get();
 142   }
 143
 144   scoped_ptr<GpuChannel> channel(new GpuChannel(this,
 145                                                 watchdog_,
 146                                                 share_group,
 147                                                 mailbox_manager,
 148                                                 client_id,
 149                                                 client_tracing_id,
 150                                                 false,
 151                                                 allow_future_sync_points));
 152   channel->Init(io_task_runner_.get(), shutdown_event_, attachment_broker_);
 153   channel_handle.name = channel->GetChannelName();
 154
 155 #if defined(OS_POSIX)
 156   // On POSIX, pass the renderer-side FD. Also mark it as auto-close so
 157   // that it gets closed after it has been sent.
 158   base::ScopedFD renderer_fd = channel->TakeRendererFileDescriptor();
 159   DCHECK(renderer_fd.is_valid());
 160   channel_handle.socket = base::FileDescriptor(renderer_fd.Pass());
 161 #endif
 162
 163   gpu_channels_.set(client_id, channel.Pass());
 164
 165   Send(new GpuHostMsg_ChannelEstablished(channel_handle));
 166 }
 167
 168 void GpuChannelManager::OnCloseChannel(
 169     const IPC::ChannelHandle& channel_handle) {
 170   for (GpuChannelMap::iterator iter = gpu_channels_.begin();
 171        iter != gpu_channels_.end(); ++iter) {
 172     if (iter->second->GetChannelName() == channel_handle.name) {
 173       gpu_channels_.erase(iter);
 174       return;
 175     }
 176   }
 177 }
 178
 179 void GpuChannelManager::OnCreateViewCommandBuffer(
 180     const gfx::GLSurfaceHandle& window,
 181     int32 surface_id,
 182     int32 client_id,
 183     const GPUCreateCommandBufferConfig& init_params,
 184     int32 route_id) {
 185   DCHECK(surface_id);
 186   CreateCommandBufferResult result = CREATE_COMMAND_BUFFER_FAILED;
 187
 188   GpuChannelMap::const_iterator iter = gpu_channels_.find(client_id);
 189   if (iter != gpu_channels_.end()) {
 190     result = iter->second->CreateViewCommandBuffer(
 191         window, surface_id, init_params, route_id);
 192   }
 193
 194   Send(new GpuHostMsg_CommandBufferCreated(result));
 195 }
 196
 197 void GpuChannelManager::DestroyGpuMemoryBuffer(
 198     gfx::GpuMemoryBufferId id,
 199     int client_id) {
 200   io_task_runner_->PostTask(
 201       FROM_HERE, base::Bind(&GpuChannelManager::DestroyGpuMemoryBufferOnIO,
 202                             base::Unretained(this), id, client_id));
 203 }
 204
 205 void GpuChannelManager::DestroyGpuMemoryBufferOnIO(
 206     gfx::GpuMemoryBufferId id,
 207     int client_id) {
 208   gpu_memory_buffer_factory_->DestroyGpuMemoryBuffer(id, client_id);
 209 }
 210
 211 void GpuChannelManager::OnDestroyGpuMemoryBuffer(
 212     gfx::GpuMemoryBufferId id,
 213     int client_id,
 214     int32 sync_point) {
 215   if (!sync_point) {
 216     DestroyGpuMemoryBuffer(id, client_id);
 217   } else {
 218     sync_point_manager()->AddSyncPointCallback(
 219         sync_point,
 220         base::Bind(&GpuChannelManager::DestroyGpuMemoryBuffer,
 221                    base::Unretained(this),
 222                    id,
 223                    client_id));
 224   }
 225 }
 226
 227 void GpuChannelManager::OnUpdateValueState(
 228     int client_id, unsigned int target, const gpu::ValueState& state) {
 229   // Only pass updated state to the channel corresponding to the
 230   // render_widget_host where the event originated.
 231   GpuChannelMap::const_iterator iter = gpu_channels_.find(client_id);
 232   if (iter != gpu_channels_.end()) {
 233     iter->second->HandleUpdateValueState(target, state);
 234   }
 235 }
 236
 237 void GpuChannelManager::OnLoadedShader(std::string program_proto) {
 238   if (program_cache())
 239     program_cache()->LoadProgram(program_proto);
 240 }
 241
 242 bool GpuChannelManager::HandleMessagesScheduled() {
 243   for (GpuChannelMap::iterator iter = gpu_channels_.begin();
 244        iter != gpu_channels_.end(); ++iter) {
 245     if (iter->second->handle_messages_scheduled())
 246       return true;
 247   }
 248   return false;
 249 }
 250
 251 uint64 GpuChannelManager::MessagesProcessed() {
 252   uint64 messages_processed = 0;
 253
 254   for (GpuChannelMap::iterator iter = gpu_channels_.begin();
 255        iter != gpu_channels_.end(); ++iter) {
 256     messages_processed += iter->second->messages_processed();
 257   }
 258   return messages_processed;
 259 }
 260
 261 void GpuChannelManager::LoseAllContexts() {
 262   for (GpuChannelMap::iterator iter = gpu_channels_.begin();
 263        iter != gpu_channels_.end(); ++iter) {
 264     iter->second->MarkAllContextsLost();
 265   }
 266   base::ThreadTaskRunnerHandle::Get()->PostTask(
 267       FROM_HERE, base::Bind(&GpuChannelManager::OnLoseAllContexts,
 268                             weak_factory_.GetWeakPtr()));
 269 }
 270
 271 void GpuChannelManager::OnLoseAllContexts() {
 272   gpu_channels_.clear();
 273 }
 274
 275 gfx::GLSurface* GpuChannelManager::GetDefaultOffscreenSurface() {
 276   if (!default_offscreen_surface_.get()) {
 277     default_offscreen_surface_ =
 278         gfx::GLSurface::CreateOffscreenGLSurface(gfx::Size());
 279   }
 280   return default_offscreen_surface_.get();
 281 }
 282
 283 void GpuChannelManager::OnFinalize() {
 284   // Quit the GPU process
 285   base::MessageLoop::current()->Quit();
 286 }
 287
 288 }  // namespace content