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 "ui/gl/gl_bindings.h"
  21 #include "ui/gl/gl_share_group.h"
  22
  23 namespace content {
  24
  25 GpuChannelManager::GpuMemoryBufferOperation::GpuMemoryBufferOperation(
  26     int32 sync_point,
  27     base::Closure callback)
  28     : sync_point(sync_point), callback(callback) {
  29 }
  30
  31 GpuChannelManager::GpuMemoryBufferOperation::~GpuMemoryBufferOperation() {
  32 }
  33
  34 GpuChannelManager::GpuChannelManager(MessageRouter* router,
  35                                      GpuWatchdog* watchdog,
  36                                      base::MessageLoopProxy* io_message_loop,
  37                                      base::WaitableEvent* shutdown_event)
  38     : weak_factory_(this),
  39       io_message_loop_(io_message_loop),
  40       shutdown_event_(shutdown_event),
  41       router_(router),
  42       gpu_memory_manager_(
  43           this,
  44           GpuMemoryManager::kDefaultMaxSurfacesWithFrontbufferSoftLimit),
  45       watchdog_(watchdog),
  46       sync_point_manager_(new SyncPointManager),
  47       gpu_memory_buffer_factory_(GpuMemoryBufferFactory::Create()) {
  48   DCHECK(router_);
  49   DCHECK(io_message_loop);
  50   DCHECK(shutdown_event);
  51 }
  52
  53 GpuChannelManager::~GpuChannelManager() {
  54   gpu_channels_.clear();
  55   if (default_offscreen_surface_.get()) {
  56     default_offscreen_surface_->Destroy();
  57     default_offscreen_surface_ = NULL;
  58   }
  59   DCHECK(gpu_memory_buffer_operations_.empty());
  60 }
  61
  62 gpu::gles2::ProgramCache* GpuChannelManager::program_cache() {
  63   if (!program_cache_.get() &&
  64       (gfx::g_driver_gl.ext.b_GL_ARB_get_program_binary ||
  65        gfx::g_driver_gl.ext.b_GL_OES_get_program_binary) &&
  66       !CommandLine::ForCurrentProcess()->HasSwitch(
  67           switches::kDisableGpuProgramCache)) {
  68     program_cache_.reset(new gpu::gles2::MemoryProgramCache());
  69   }
  70   return program_cache_.get();
  71 }
  72
  73 gpu::gles2::ShaderTranslatorCache*
  74 GpuChannelManager::shader_translator_cache() {
  75   if (!shader_translator_cache_.get())
  76     shader_translator_cache_ = new gpu::gles2::ShaderTranslatorCache;
  77   return shader_translator_cache_.get();
  78 }
  79
  80 void GpuChannelManager::RemoveChannel(int client_id) {
  81   Send(new GpuHostMsg_DestroyChannel(client_id));
  82   gpu_channels_.erase(client_id);
  83 }
  84
  85 int GpuChannelManager::GenerateRouteID() {
  86   static int last_id = 0;
  87   return ++last_id;
  88 }
  89
  90 void GpuChannelManager::AddRoute(int32 routing_id, IPC::Listener* listener) {
  91   router_->AddRoute(routing_id, listener);
  92 }
  93
  94 void GpuChannelManager::RemoveRoute(int32 routing_id) {
  95   router_->RemoveRoute(routing_id);
  96 }
  97
  98 GpuChannel* GpuChannelManager::LookupChannel(int32 client_id) {
  99   GpuChannelMap::const_iterator iter = gpu_channels_.find(client_id);
 100   if (iter == gpu_channels_.end())
 101     return NULL;
 102   else
 103     return iter->second;
 104 }
 105
 106 bool GpuChannelManager::OnMessageReceived(const IPC::Message& msg) {
 107   bool handled = true;
 108   IPC_BEGIN_MESSAGE_MAP(GpuChannelManager, msg)
 109     IPC_MESSAGE_HANDLER(GpuMsg_EstablishChannel, OnEstablishChannel)
 110     IPC_MESSAGE_HANDLER(GpuMsg_CloseChannel, OnCloseChannel)
 111     IPC_MESSAGE_HANDLER(GpuMsg_CreateViewCommandBuffer,
 112                         OnCreateViewCommandBuffer)
 113     IPC_MESSAGE_HANDLER(GpuMsg_CreateGpuMemoryBuffer, OnCreateGpuMemoryBuffer)
 114     IPC_MESSAGE_HANDLER(GpuMsg_DestroyGpuMemoryBuffer, OnDestroyGpuMemoryBuffer)
 115     IPC_MESSAGE_HANDLER(GpuMsg_LoadedShader, OnLoadedShader)
 116     IPC_MESSAGE_UNHANDLED(handled = false)
 117   IPC_END_MESSAGE_MAP()
 118   return handled;
 119 }
 120
 121 bool GpuChannelManager::Send(IPC::Message* msg) { return router_->Send(msg); }
 122
 123 void GpuChannelManager::OnEstablishChannel(int client_id,
 124                                            bool share_context,
 125                                            bool allow_future_sync_points) {
 126   IPC::ChannelHandle channel_handle;
 127
 128   gfx::GLShareGroup* share_group = NULL;
 129   gpu::gles2::MailboxManager* mailbox_manager = NULL;
 130   if (share_context) {
 131     if (!share_group_.get()) {
 132       share_group_ = new gfx::GLShareGroup;
 133       DCHECK(!mailbox_manager_.get());
 134       mailbox_manager_ = new gpu::gles2::MailboxManager;
 135     }
 136     share_group = share_group_.get();
 137     mailbox_manager = mailbox_manager_.get();
 138   }
 139
 140   scoped_ptr<GpuChannel> channel(new GpuChannel(this,
 141                                                 watchdog_,
 142                                                 share_group,
 143                                                 mailbox_manager,
 144                                                 client_id,
 145                                                 false,
 146                                                 allow_future_sync_points));
 147   channel->Init(io_message_loop_.get(), shutdown_event_);
 148   channel_handle.name = channel->GetChannelName();
 149
 150 #if defined(OS_POSIX)
 151   // On POSIX, pass the renderer-side FD. Also mark it as auto-close so
 152   // that it gets closed after it has been sent.
 153   int renderer_fd = channel->TakeRendererFileDescriptor();
 154   DCHECK_NE(-1, renderer_fd);
 155   channel_handle.socket = base::FileDescriptor(renderer_fd, true);
 156 #endif
 157
 158   gpu_channels_.set(client_id, channel.Pass());
 159
 160   Send(new GpuHostMsg_ChannelEstablished(channel_handle));
 161 }
 162
 163 void GpuChannelManager::OnCloseChannel(
 164     const IPC::ChannelHandle& channel_handle) {
 165   for (GpuChannelMap::iterator iter = gpu_channels_.begin();
 166        iter != gpu_channels_.end(); ++iter) {
 167     if (iter->second->GetChannelName() == channel_handle.name) {
 168       gpu_channels_.erase(iter);
 169       return;
 170     }
 171   }
 172 }
 173
 174 void GpuChannelManager::OnCreateViewCommandBuffer(
 175     const gfx::GLSurfaceHandle& window,
 176     int32 surface_id,
 177     int32 client_id,
 178     const GPUCreateCommandBufferConfig& init_params,
 179     int32 route_id) {
 180   DCHECK(surface_id);
 181   CreateCommandBufferResult result = CREATE_COMMAND_BUFFER_FAILED;
 182
 183   GpuChannelMap::const_iterator iter = gpu_channels_.find(client_id);
 184   if (iter != gpu_channels_.end()) {
 185     result = iter->second->CreateViewCommandBuffer(
 186         window, surface_id, init_params, route_id);
 187   }
 188
 189   Send(new GpuHostMsg_CommandBufferCreated(result));
 190 }
 191
 192 void GpuChannelManager::CreateGpuMemoryBuffer(
 193     const gfx::GpuMemoryBufferHandle& handle,
 194     const gfx::Size& size,
 195     unsigned internalformat,
 196     unsigned usage) {
 197   Send(new GpuHostMsg_GpuMemoryBufferCreated(
 198       gpu_memory_buffer_factory_->CreateGpuMemoryBuffer(
 199           handle, size, internalformat, usage)));
 200 }
 201
 202 void GpuChannelManager::OnCreateGpuMemoryBuffer(
 203     const gfx::GpuMemoryBufferHandle& handle,
 204     const gfx::Size& size,
 205     unsigned internalformat,
 206     unsigned usage) {
 207   if (gpu_memory_buffer_operations_.empty()) {
 208     CreateGpuMemoryBuffer(handle, size, internalformat, usage);
 209   } else {
 210     gpu_memory_buffer_operations_.push_back(new GpuMemoryBufferOperation(
 211         0,
 212         base::Bind(&GpuChannelManager::CreateGpuMemoryBuffer,
 213                    base::Unretained(this),
 214                    handle,
 215                    size,
 216                    internalformat,
 217                    usage)));
 218   }
 219 }
 220
 221 void GpuChannelManager::DestroyGpuMemoryBuffer(
 222     const gfx::GpuMemoryBufferHandle& handle) {
 223   gpu_memory_buffer_factory_->DestroyGpuMemoryBuffer(handle);
 224 }
 225
 226 void GpuChannelManager::OnDestroyGpuMemoryBuffer(
 227     const gfx::GpuMemoryBufferHandle& handle,
 228     int32 sync_point) {
 229   if (!sync_point && gpu_memory_buffer_operations_.empty()) {
 230     DestroyGpuMemoryBuffer(handle);
 231   } else {
 232     gpu_memory_buffer_operations_.push_back(new GpuMemoryBufferOperation(
 233         sync_point,
 234         base::Bind(&GpuChannelManager::DestroyGpuMemoryBuffer,
 235                    base::Unretained(this),
 236                    handle)));
 237     if (sync_point) {
 238       sync_point_manager()->AddSyncPointCallback(
 239           sync_point,
 240           base::Bind(
 241               &GpuChannelManager::OnDestroyGpuMemoryBufferSyncPointRetired,
 242               base::Unretained(this),
 243               gpu_memory_buffer_operations_.back()));
 244     }
 245   }
 246 }
 247
 248 void GpuChannelManager::OnDestroyGpuMemoryBufferSyncPointRetired(
 249     GpuMemoryBufferOperation* gpu_memory_buffer_operation) {
 250   // Mark operation as no longer having a pending sync point.
 251   gpu_memory_buffer_operation->sync_point = 0;
 252
 253   // De-queue operations until we reach a pending sync point.
 254   while (!gpu_memory_buffer_operations_.empty()) {
 255     // Check if operation has a pending sync point.
 256     if (gpu_memory_buffer_operations_.front()->sync_point)
 257       break;
 258
 259     gpu_memory_buffer_operations_.front()->callback.Run();
 260     delete gpu_memory_buffer_operations_.front();
 261     gpu_memory_buffer_operations_.pop_front();
 262   }
 263 }
 264
 265 void GpuChannelManager::OnLoadedShader(std::string program_proto) {
 266   if (program_cache())
 267     program_cache()->LoadProgram(program_proto);
 268 }
 269
 270 bool GpuChannelManager::HandleMessagesScheduled() {
 271   for (GpuChannelMap::iterator iter = gpu_channels_.begin();
 272        iter != gpu_channels_.end(); ++iter) {
 273     if (iter->second->handle_messages_scheduled())
 274       return true;
 275   }
 276   return false;
 277 }
 278
 279 uint64 GpuChannelManager::MessagesProcessed() {
 280   uint64 messages_processed = 0;
 281
 282   for (GpuChannelMap::iterator iter = gpu_channels_.begin();
 283        iter != gpu_channels_.end(); ++iter) {
 284     messages_processed += iter->second->messages_processed();
 285   }
 286   return messages_processed;
 287 }
 288
 289 void GpuChannelManager::LoseAllContexts() {
 290   for (GpuChannelMap::iterator iter = gpu_channels_.begin();
 291        iter != gpu_channels_.end(); ++iter) {
 292     iter->second->MarkAllContextsLost();
 293   }
 294   base::MessageLoop::current()->PostTask(
 295       FROM_HERE,
 296       base::Bind(&GpuChannelManager::OnLoseAllContexts,
 297                  weak_factory_.GetWeakPtr()));
 298 }
 299
 300 void GpuChannelManager::OnLoseAllContexts() {
 301   gpu_channels_.clear();
 302 }
 303
 304 gfx::GLSurface* GpuChannelManager::GetDefaultOffscreenSurface() {
 305   if (!default_offscreen_surface_.get()) {
 306     default_offscreen_surface_ =
 307         gfx::GLSurface::CreateOffscreenGLSurface(gfx::Size());
 308   }
 309   return default_offscreen_surface_.get();
 310 }
 311
 312 }  // namespace content