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 "content/common/gpu/gpu_channel.h"
  10 #include "content/common/gpu/gpu_memory_buffer_factory.h"
  11 #include "content/common/gpu/gpu_memory_manager.h"
  12 #include "content/common/gpu/gpu_messages.h"
  13 #include "content/common/gpu/sync_point_manager.h"
  14 #include "content/common/message_router.h"
  15 #include "gpu/command_buffer/service/feature_info.h"
  16 #include "gpu/command_buffer/service/gpu_switches.h"
  17 #include "gpu/command_buffer/service/mailbox_manager_impl.h"
  18 #include "gpu/command_buffer/service/memory_program_cache.h"
  19 #include "gpu/command_buffer/service/shader_translator_cache.h"
  20 #include "ipc/message_filter.h"
  21 #include "ui/gl/gl_bindings.h"
  22 #include "ui/gl/gl_share_group.h"
  23
  24 namespace content {
  25
  26 namespace {
  27
  28 class GpuChannelManagerMessageFilter : public IPC::MessageFilter {
  29  public:
  30   GpuChannelManagerMessageFilter(
  31       GpuMemoryBufferFactory* gpu_memory_buffer_factory)
  32       : sender_(NULL), gpu_memory_buffer_factory_(gpu_memory_buffer_factory) {}
  33
  34   void OnFilterAdded(IPC::Sender* sender) override {
  35     DCHECK(!sender_);
  36     sender_ = sender;
  37   }
  38
  39   void OnFilterRemoved() override {
  40     DCHECK(sender_);
  41     sender_ = NULL;
  42   }
  43
  44   bool OnMessageReceived(const IPC::Message& message) override {
  45     DCHECK(sender_);
  46     bool handled = true;
  47     IPC_BEGIN_MESSAGE_MAP(GpuChannelManagerMessageFilter, message)
  48       IPC_MESSAGE_HANDLER(GpuMsg_CreateGpuMemoryBuffer, OnCreateGpuMemoryBuffer)
  49       IPC_MESSAGE_UNHANDLED(handled = false)
  50     IPC_END_MESSAGE_MAP()
  51     return handled;
  52   }
  53
  54  protected:
  55   ~GpuChannelManagerMessageFilter() override {}
  56
  57   void OnCreateGpuMemoryBuffer(
  58       const GpuMsg_CreateGpuMemoryBuffer_Params& params) {
  59     TRACE_EVENT2("gpu",
  60                  "GpuChannelManagerMessageFilter::OnCreateGpuMemoryBuffer",
  61                  "id",
  62                  params.id,
  63                  "client_id",
  64                  params.client_id);
  65     sender_->Send(new GpuHostMsg_GpuMemoryBufferCreated(
  66         gpu_memory_buffer_factory_->CreateGpuMemoryBuffer(params.type,
  67                                                           params.id,
  68                                                           params.size,
  69                                                           params.format,
  70                                                           params.usage,
  71                                                           params.client_id)));
  72   }
  73
  74   IPC::Sender* sender_;
  75   GpuMemoryBufferFactory* gpu_memory_buffer_factory_;
  76 };
  77
  78 }  // namespace
  79
  80 GpuChannelManager::GpuChannelManager(MessageRouter* router,
  81                                      GpuWatchdog* watchdog,
  82                                      base::MessageLoopProxy* io_message_loop,
  83                                      base::WaitableEvent* shutdown_event,
  84                                      IPC::SyncChannel* channel)
  85     : io_message_loop_(io_message_loop),
  86       shutdown_event_(shutdown_event),
  87       router_(router),
  88       gpu_memory_manager_(
  89           this,
  90           GpuMemoryManager::kDefaultMaxSurfacesWithFrontbufferSoftLimit),
  91       watchdog_(watchdog),
  92       sync_point_manager_(new SyncPointManager),
  93       gpu_memory_buffer_factory_(GpuMemoryBufferFactory::Create()),
  94       channel_(channel),
  95       filter_(new GpuChannelManagerMessageFilter(
  96           gpu_memory_buffer_factory_.get())),
  97       weak_factory_(this) {
  98   DCHECK(router_);
  99   DCHECK(io_message_loop);
 100   DCHECK(shutdown_event);
 101   channel_->AddFilter(filter_.get());
 102 }
 103
 104 GpuChannelManager::~GpuChannelManager() {
 105   gpu_channels_.clear();
 106   if (default_offscreen_surface_.get()) {
 107     default_offscreen_surface_->Destroy();
 108     default_offscreen_surface_ = NULL;
 109   }
 110 }
 111
 112 gpu::gles2::ProgramCache* GpuChannelManager::program_cache() {
 113   if (!program_cache_.get() &&
 114       (gfx::g_driver_gl.ext.b_GL_ARB_get_program_binary ||
 115        gfx::g_driver_gl.ext.b_GL_OES_get_program_binary) &&
 116       !CommandLine::ForCurrentProcess()->HasSwitch(
 117           switches::kDisableGpuProgramCache)) {
 118     program_cache_.reset(new gpu::gles2::MemoryProgramCache());
 119   }
 120   return program_cache_.get();
 121 }
 122
 123 gpu::gles2::ShaderTranslatorCache*
 124 GpuChannelManager::shader_translator_cache() {
 125   if (!shader_translator_cache_.get())
 126     shader_translator_cache_ = new gpu::gles2::ShaderTranslatorCache;
 127   return shader_translator_cache_.get();
 128 }
 129
 130 void GpuChannelManager::RemoveChannel(int client_id) {
 131   Send(new GpuHostMsg_DestroyChannel(client_id));
 132   gpu_channels_.erase(client_id);
 133 }
 134
 135 int GpuChannelManager::GenerateRouteID() {
 136   static int last_id = 0;
 137   return ++last_id;
 138 }
 139
 140 void GpuChannelManager::AddRoute(int32 routing_id, IPC::Listener* listener) {
 141   router_->AddRoute(routing_id, listener);
 142 }
 143
 144 void GpuChannelManager::RemoveRoute(int32 routing_id) {
 145   router_->RemoveRoute(routing_id);
 146 }
 147
 148 GpuChannel* GpuChannelManager::LookupChannel(int32 client_id) {
 149   GpuChannelMap::const_iterator iter = gpu_channels_.find(client_id);
 150   if (iter == gpu_channels_.end())
 151     return NULL;
 152   else
 153     return iter->second;
 154 }
 155
 156 bool GpuChannelManager::OnMessageReceived(const IPC::Message& msg) {
 157   bool handled = true;
 158   IPC_BEGIN_MESSAGE_MAP(GpuChannelManager, msg)
 159     IPC_MESSAGE_HANDLER(GpuMsg_EstablishChannel, OnEstablishChannel)
 160     IPC_MESSAGE_HANDLER(GpuMsg_CloseChannel, OnCloseChannel)
 161     IPC_MESSAGE_HANDLER(GpuMsg_CreateViewCommandBuffer,
 162                         OnCreateViewCommandBuffer)
 163     IPC_MESSAGE_HANDLER(GpuMsg_DestroyGpuMemoryBuffer, OnDestroyGpuMemoryBuffer)
 164     IPC_MESSAGE_HANDLER(GpuMsg_LoadedShader, OnLoadedShader)
 165     IPC_MESSAGE_UNHANDLED(handled = false)
 166   IPC_END_MESSAGE_MAP()
 167   return handled;
 168 }
 169
 170 bool GpuChannelManager::Send(IPC::Message* msg) { return router_->Send(msg); }
 171
 172 void GpuChannelManager::OnEstablishChannel(int client_id,
 173                                            bool share_context,
 174                                            bool allow_future_sync_points) {
 175   IPC::ChannelHandle channel_handle;
 176
 177   gfx::GLShareGroup* share_group = NULL;
 178   gpu::gles2::MailboxManager* mailbox_manager = NULL;
 179   if (share_context) {
 180     if (!share_group_.get()) {
 181       share_group_ = new gfx::GLShareGroup;
 182       DCHECK(!mailbox_manager_.get());
 183       mailbox_manager_ = new gpu::gles2::MailboxManagerImpl;
 184     }
 185     share_group = share_group_.get();
 186     mailbox_manager = mailbox_manager_.get();
 187   }
 188
 189   scoped_ptr<GpuChannel> channel(new GpuChannel(this,
 190                                                 watchdog_,
 191                                                 share_group,
 192                                                 mailbox_manager,
 193                                                 client_id,
 194                                                 false,
 195                                                 allow_future_sync_points));
 196   channel->Init(io_message_loop_.get(), shutdown_event_);
 197   channel_handle.name = channel->GetChannelName();
 198
 199 #if defined(OS_POSIX)
 200   // On POSIX, pass the renderer-side FD. Also mark it as auto-close so
 201   // that it gets closed after it has been sent.
 202   base::ScopedFD renderer_fd = channel->TakeRendererFileDescriptor();
 203   DCHECK(renderer_fd.is_valid());
 204   channel_handle.socket = base::FileDescriptor(renderer_fd.Pass());
 205 #endif
 206
 207   gpu_channels_.set(client_id, channel.Pass());
 208
 209   Send(new GpuHostMsg_ChannelEstablished(channel_handle));
 210 }
 211
 212 void GpuChannelManager::OnCloseChannel(
 213     const IPC::ChannelHandle& channel_handle) {
 214   for (GpuChannelMap::iterator iter = gpu_channels_.begin();
 215        iter != gpu_channels_.end(); ++iter) {
 216     if (iter->second->GetChannelName() == channel_handle.name) {
 217       gpu_channels_.erase(iter);
 218       return;
 219     }
 220   }
 221 }
 222
 223 void GpuChannelManager::OnCreateViewCommandBuffer(
 224     const gfx::GLSurfaceHandle& window,
 225     int32 surface_id,
 226     int32 client_id,
 227     const GPUCreateCommandBufferConfig& init_params,
 228     int32 route_id) {
 229   DCHECK(surface_id);
 230   CreateCommandBufferResult result = CREATE_COMMAND_BUFFER_FAILED;
 231
 232   GpuChannelMap::const_iterator iter = gpu_channels_.find(client_id);
 233   if (iter != gpu_channels_.end()) {
 234     result = iter->second->CreateViewCommandBuffer(
 235         window, surface_id, init_params, route_id);
 236   }
 237
 238   Send(new GpuHostMsg_CommandBufferCreated(result));
 239 }
 240
 241 void GpuChannelManager::DestroyGpuMemoryBuffer(
 242     gfx::GpuMemoryBufferType type,
 243     gfx::GpuMemoryBufferId id,
 244     int client_id) {
 245   io_message_loop_->PostTask(
 246       FROM_HERE,
 247       base::Bind(&GpuChannelManager::DestroyGpuMemoryBufferOnIO,
 248                  base::Unretained(this),
 249                  type,
 250                  id,
 251                  client_id));
 252 }
 253
 254 void GpuChannelManager::DestroyGpuMemoryBufferOnIO(
 255     gfx::GpuMemoryBufferType type,
 256     gfx::GpuMemoryBufferId id,
 257     int client_id) {
 258   gpu_memory_buffer_factory_->DestroyGpuMemoryBuffer(type, id, client_id);
 259 }
 260
 261 void GpuChannelManager::OnDestroyGpuMemoryBuffer(
 262     gfx::GpuMemoryBufferType type,
 263     gfx::GpuMemoryBufferId id,
 264     int client_id,
 265     int32 sync_point) {
 266   if (!sync_point) {
 267     DestroyGpuMemoryBuffer(type, id, client_id);
 268   } else {
 269     sync_point_manager()->AddSyncPointCallback(
 270         sync_point,
 271         base::Bind(&GpuChannelManager::DestroyGpuMemoryBuffer,
 272                    base::Unretained(this),
 273                    type,
 274                    id,
 275                    client_id));
 276   }
 277 }
 278
 279 void GpuChannelManager::OnLoadedShader(std::string program_proto) {
 280   if (program_cache())
 281     program_cache()->LoadProgram(program_proto);
 282 }
 283
 284 bool GpuChannelManager::HandleMessagesScheduled() {
 285   for (GpuChannelMap::iterator iter = gpu_channels_.begin();
 286        iter != gpu_channels_.end(); ++iter) {
 287     if (iter->second->handle_messages_scheduled())
 288       return true;
 289   }
 290   return false;
 291 }
 292
 293 uint64 GpuChannelManager::MessagesProcessed() {
 294   uint64 messages_processed = 0;
 295
 296   for (GpuChannelMap::iterator iter = gpu_channels_.begin();
 297        iter != gpu_channels_.end(); ++iter) {
 298     messages_processed += iter->second->messages_processed();
 299   }
 300   return messages_processed;
 301 }
 302
 303 void GpuChannelManager::LoseAllContexts() {
 304   for (GpuChannelMap::iterator iter = gpu_channels_.begin();
 305        iter != gpu_channels_.end(); ++iter) {
 306     iter->second->MarkAllContextsLost();
 307   }
 308   base::MessageLoop::current()->PostTask(
 309       FROM_HERE,
 310       base::Bind(&GpuChannelManager::OnLoseAllContexts,
 311                  weak_factory_.GetWeakPtr()));
 312 }
 313
 314 void GpuChannelManager::OnLoseAllContexts() {
 315   gpu_channels_.clear();
 316 }
 317
 318 gfx::GLSurface* GpuChannelManager::GetDefaultOffscreenSurface() {
 319   if (!default_offscreen_surface_.get()) {
 320     default_offscreen_surface_ =
 321         gfx::GLSurface::CreateOffscreenGLSurface(gfx::Size());
 322   }
 323   return default_offscreen_surface_.get();
 324 }
 325
 326 }  // namespace content