src/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.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   virtual void OnFilterAdded(IPC::Sender* sender) OVERRIDE {
  35     DCHECK(!sender_);
  36     sender_ = sender;
  37   }
  38
  39   virtual void OnFilterRemoved() OVERRIDE {
  40     DCHECK(sender_);
  41     sender_ = NULL;
  42   }
  43
  44   virtual 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   virtual ~GpuChannelManagerMessageFilter() {}
  56
  57   void OnCreateGpuMemoryBuffer(const gfx::GpuMemoryBufferHandle& handle,
  58                                const gfx::Size& size,
  59                                unsigned internalformat,
  60                                unsigned usage) {
  61     TRACE_EVENT2("gpu",
  62                  "GpuChannelManagerMessageFilter::OnCreateGpuMemoryBuffer",
  63                  "primary_id",
  64                  handle.global_id.primary_id,
  65                  "secondary_id",
  66                  handle.global_id.secondary_id);
  67     sender_->Send(new GpuHostMsg_GpuMemoryBufferCreated(
  68         gpu_memory_buffer_factory_->CreateGpuMemoryBuffer(
  69             handle, size, internalformat, usage)));
  70   }
  71
  72   IPC::Sender* sender_;
  73   GpuMemoryBufferFactory* gpu_memory_buffer_factory_;
  74 };
  75
  76 }  // namespace
  77
  78 GpuChannelManager::GpuChannelManager(MessageRouter* router,
  79                                      GpuWatchdog* watchdog,
  80                                      base::MessageLoopProxy* io_message_loop,
  81                                      base::WaitableEvent* shutdown_event,
  82                                      IPC::SyncChannel* channel)
  83     : io_message_loop_(io_message_loop),
  84       shutdown_event_(shutdown_event),
  85       router_(router),
  86       gpu_memory_manager_(
  87           this,
  88           GpuMemoryManager::kDefaultMaxSurfacesWithFrontbufferSoftLimit),
  89       watchdog_(watchdog),
  90       sync_point_manager_(new SyncPointManager),
  91       gpu_memory_buffer_factory_(GpuMemoryBufferFactory::Create()),
  92       channel_(channel),
  93       filter_(new GpuChannelManagerMessageFilter(
  94           gpu_memory_buffer_factory_.get())),
  95       weak_factory_(this) {
  96   DCHECK(router_);
  97   DCHECK(io_message_loop);
  98   DCHECK(shutdown_event);
  99   channel_->AddFilter(filter_.get());
 100 }
 101
 102 GpuChannelManager::~GpuChannelManager() {
 103   gpu_channels_.clear();
 104   if (default_offscreen_surface_.get()) {
 105     default_offscreen_surface_->Destroy();
 106     default_offscreen_surface_ = NULL;
 107   }
 108 }
 109
 110 gpu::gles2::ProgramCache* GpuChannelManager::program_cache() {
 111   if (!program_cache_.get() &&
 112       (gfx::g_driver_gl.ext.b_GL_ARB_get_program_binary ||
 113        gfx::g_driver_gl.ext.b_GL_OES_get_program_binary) &&
 114       !CommandLine::ForCurrentProcess()->HasSwitch(
 115           switches::kDisableGpuProgramCache)) {
 116     program_cache_.reset(new gpu::gles2::MemoryProgramCache());
 117   }
 118   return program_cache_.get();
 119 }
 120
 121 gpu::gles2::ShaderTranslatorCache*
 122 GpuChannelManager::shader_translator_cache() {
 123   if (!shader_translator_cache_.get())
 124     shader_translator_cache_ = new gpu::gles2::ShaderTranslatorCache;
 125   return shader_translator_cache_.get();
 126 }
 127
 128 void GpuChannelManager::RemoveChannel(int client_id) {
 129   Send(new GpuHostMsg_DestroyChannel(client_id));
 130   gpu_channels_.erase(client_id);
 131 }
 132
 133 int GpuChannelManager::GenerateRouteID() {
 134   static int last_id = 0;
 135   return ++last_id;
 136 }
 137
 138 void GpuChannelManager::AddRoute(int32 routing_id, IPC::Listener* listener) {
 139   router_->AddRoute(routing_id, listener);
 140 }
 141
 142 void GpuChannelManager::RemoveRoute(int32 routing_id) {
 143   router_->RemoveRoute(routing_id);
 144 }
 145
 146 GpuChannel* GpuChannelManager::LookupChannel(int32 client_id) {
 147   GpuChannelMap::const_iterator iter = gpu_channels_.find(client_id);
 148   if (iter == gpu_channels_.end())
 149     return NULL;
 150   else
 151     return iter->second;
 152 }
 153
 154 bool GpuChannelManager::OnMessageReceived(const IPC::Message& msg) {
 155   bool handled = true;
 156   IPC_BEGIN_MESSAGE_MAP(GpuChannelManager, msg)
 157     IPC_MESSAGE_HANDLER(GpuMsg_EstablishChannel, OnEstablishChannel)
 158     IPC_MESSAGE_HANDLER(GpuMsg_CloseChannel, OnCloseChannel)
 159     IPC_MESSAGE_HANDLER(GpuMsg_CreateViewCommandBuffer,
 160                         OnCreateViewCommandBuffer)
 161     IPC_MESSAGE_HANDLER(GpuMsg_DestroyGpuMemoryBuffer, OnDestroyGpuMemoryBuffer)
 162     IPC_MESSAGE_HANDLER(GpuMsg_LoadedShader, OnLoadedShader)
 163     IPC_MESSAGE_UNHANDLED(handled = false)
 164   IPC_END_MESSAGE_MAP()
 165   return handled;
 166 }
 167
 168 bool GpuChannelManager::Send(IPC::Message* msg) { return router_->Send(msg); }
 169
 170 void GpuChannelManager::OnEstablishChannel(int client_id,
 171                                            bool share_context,
 172                                            bool allow_future_sync_points) {
 173   IPC::ChannelHandle channel_handle;
 174
 175   gfx::GLShareGroup* share_group = NULL;
 176   gpu::gles2::MailboxManager* mailbox_manager = NULL;
 177   if (share_context) {
 178     if (!share_group_.get()) {
 179       share_group_ = new gfx::GLShareGroup;
 180       DCHECK(!mailbox_manager_.get());
 181       mailbox_manager_ = new gpu::gles2::MailboxManager;
 182     }
 183     share_group = share_group_.get();
 184     mailbox_manager = mailbox_manager_.get();
 185   }
 186
 187   scoped_ptr<GpuChannel> channel(new GpuChannel(this,
 188                                                 watchdog_,
 189                                                 share_group,
 190                                                 mailbox_manager,
 191                                                 client_id,
 192                                                 false,
 193                                                 allow_future_sync_points));
 194   channel->Init(io_message_loop_.get(), shutdown_event_);
 195   channel_handle.name = channel->GetChannelName();
 196
 197 #if defined(OS_POSIX)
 198   // On POSIX, pass the renderer-side FD. Also mark it as auto-close so
 199   // that it gets closed after it has been sent.
 200   int renderer_fd = channel->TakeRendererFileDescriptor();
 201   DCHECK_NE(-1, renderer_fd);
 202   channel_handle.socket = base::FileDescriptor(renderer_fd, true);
 203 #endif
 204
 205   gpu_channels_.set(client_id, channel.Pass());
 206
 207   Send(new GpuHostMsg_ChannelEstablished(channel_handle));
 208 }
 209
 210 void GpuChannelManager::OnCloseChannel(
 211     const IPC::ChannelHandle& channel_handle) {
 212   for (GpuChannelMap::iterator iter = gpu_channels_.begin();
 213        iter != gpu_channels_.end(); ++iter) {
 214     if (iter->second->GetChannelName() == channel_handle.name) {
 215       gpu_channels_.erase(iter);
 216       return;
 217     }
 218   }
 219 }
 220
 221 void GpuChannelManager::OnCreateViewCommandBuffer(
 222     const gfx::GLSurfaceHandle& window,
 223     int32 surface_id,
 224     int32 client_id,
 225     const GPUCreateCommandBufferConfig& init_params,
 226     int32 route_id) {
 227   DCHECK(surface_id);
 228   CreateCommandBufferResult result = CREATE_COMMAND_BUFFER_FAILED;
 229
 230   GpuChannelMap::const_iterator iter = gpu_channels_.find(client_id);
 231   if (iter != gpu_channels_.end()) {
 232     result = iter->second->CreateViewCommandBuffer(
 233         window, surface_id, init_params, route_id);
 234   }
 235
 236   Send(new GpuHostMsg_CommandBufferCreated(result));
 237 }
 238 void GpuChannelManager::DestroyGpuMemoryBuffer(
 239     const gfx::GpuMemoryBufferHandle& handle) {
 240   io_message_loop_->PostTask(
 241       FROM_HERE,
 242       base::Bind(&GpuChannelManager::DestroyGpuMemoryBufferOnIO,
 243                  base::Unretained(this),
 244                  handle));
 245 }
 246
 247 void GpuChannelManager::DestroyGpuMemoryBufferOnIO(
 248     const gfx::GpuMemoryBufferHandle& handle) {
 249   gpu_memory_buffer_factory_->DestroyGpuMemoryBuffer(handle);
 250 }
 251
 252 void GpuChannelManager::OnDestroyGpuMemoryBuffer(
 253     const gfx::GpuMemoryBufferHandle& handle,
 254     int32 sync_point) {
 255   if (!sync_point) {
 256     DestroyGpuMemoryBuffer(handle);
 257   } else {
 258     sync_point_manager()->AddSyncPointCallback(
 259         sync_point,
 260         base::Bind(&GpuChannelManager::DestroyGpuMemoryBuffer,
 261                    base::Unretained(this),
 262                    handle));
 263   }
 264 }
 265
 266 void GpuChannelManager::OnLoadedShader(std::string program_proto) {
 267   if (program_cache())
 268     program_cache()->LoadProgram(program_proto);
 269 }
 270
 271 bool GpuChannelManager::HandleMessagesScheduled() {
 272   for (GpuChannelMap::iterator iter = gpu_channels_.begin();
 273        iter != gpu_channels_.end(); ++iter) {
 274     if (iter->second->handle_messages_scheduled())
 275       return true;
 276   }
 277   return false;
 278 }
 279
 280 uint64 GpuChannelManager::MessagesProcessed() {
 281   uint64 messages_processed = 0;
 282
 283   for (GpuChannelMap::iterator iter = gpu_channels_.begin();
 284        iter != gpu_channels_.end(); ++iter) {
 285     messages_processed += iter->second->messages_processed();
 286   }
 287   return messages_processed;
 288 }
 289
 290 void GpuChannelManager::LoseAllContexts() {
 291   for (GpuChannelMap::iterator iter = gpu_channels_.begin();
 292        iter != gpu_channels_.end(); ++iter) {
 293     iter->second->MarkAllContextsLost();
 294   }
 295   base::MessageLoop::current()->PostTask(
 296       FROM_HERE,
 297       base::Bind(&GpuChannelManager::OnLoseAllContexts,
 298                  weak_factory_.GetWeakPtr()));
 299 }
 300
 301 void GpuChannelManager::OnLoseAllContexts() {
 302   gpu_channels_.clear();
 303 }
 304
 305 gfx::GLSurface* GpuChannelManager::GetDefaultOffscreenSurface() {
 306   if (!default_offscreen_surface_.get()) {
 307     default_offscreen_surface_ =
 308         gfx::GLSurface::CreateOffscreenGLSurface(gfx::Size());
 309   }
 310   return default_offscreen_surface_.get();
 311 }
 312
 313 }  // namespace content