content/browser/android/in_process/synchronous_compositor_factory_impl.cc

   1 // Copyright 2014 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/browser/android/in_process/synchronous_compositor_factory_impl.h"
   6
   7 #include "base/command_line.h"
   8 #include "base/observer_list.h"
   9 #include "base/sys_info.h"
  10 #include "base/thread_task_runner_handle.h"
  11 #include "content/browser/android/in_process/context_provider_in_process.h"
  12 #include "content/browser/android/in_process/synchronous_compositor_external_begin_frame_source.h"
  13 #include "content/browser/android/in_process/synchronous_compositor_impl.h"
  14 #include "content/browser/android/in_process/synchronous_compositor_output_surface.h"
  15 #include "content/browser/gpu/browser_gpu_memory_buffer_manager.h"
  16 #include "content/common/gpu/client/context_provider_command_buffer.h"
  17 #include "content/common/gpu/client/gpu_channel_host.h"
  18 #include "content/common/gpu/client/webgraphicscontext3d_command_buffer_impl.h"
  19 #include "content/gpu/in_process_gpu_thread.h"
  20 #include "content/public/browser/browser_thread.h"
  21 #include "content/public/browser/gpu_data_manager.h"
  22 #include "content/renderer/gpu/frame_swap_message_queue.h"
  23 #include "content/renderer/render_thread_impl.h"
  24 #include "gpu/blink/webgraphicscontext3d_in_process_command_buffer_impl.h"
  25 #include "gpu/command_buffer/client/gl_in_process_context.h"
  26 #include "gpu/command_buffer/common/gles2_cmd_utils.h"
  27 #include "gpu/command_buffer/service/gpu_switches.h"
  28 #include "ui/gl/android/surface_texture.h"
  29 #include "ui/gl/gl_surface.h"
  30 #include "ui/gl/gl_surface_stub.h"
  31
  32 using cc_blink::ContextProviderWebContext;
  33 using gpu_blink::WebGraphicsContext3DImpl;
  34 using gpu_blink::WebGraphicsContext3DInProcessCommandBufferImpl;
  35
  36 namespace content {
  37
  38 namespace {
  39
  40 struct ContextHolder {
  41   scoped_ptr<WebGraphicsContext3DInProcessCommandBufferImpl> command_buffer;
  42   gpu::GLInProcessContext* gl_in_process_context;
  43 };
  44
  45 blink::WebGraphicsContext3D::Attributes GetDefaultAttribs() {
  46   blink::WebGraphicsContext3D::Attributes attributes;
  47   attributes.antialias = false;
  48   attributes.depth = false;
  49   attributes.stencil = false;
  50   attributes.shareResources = true;
  51   attributes.noAutomaticFlushes = true;
  52
  53   return attributes;
  54 }
  55
  56 ContextHolder CreateContextHolder(
  57     const blink::WebGraphicsContext3D::Attributes& attributes,
  58     scoped_refptr<gpu::InProcessCommandBuffer::Service> service,
  59     const gpu::GLInProcessContextSharedMemoryLimits& mem_limits,
  60     bool is_offscreen) {
  61   gpu::gles2::ContextCreationAttribHelper in_process_attribs;
  62   WebGraphicsContext3DImpl::ConvertAttributes(attributes, &in_process_attribs);
  63   in_process_attribs.lose_context_when_out_of_memory = true;
  64
  65   scoped_ptr<gpu::GLInProcessContext> context(gpu::GLInProcessContext::Create(
  66       service, NULL /* surface */, is_offscreen, gfx::kNullAcceleratedWidget,
  67       gfx::Size(1, 1), NULL /* share_context */, attributes.shareResources,
  68       in_process_attribs, gfx::PreferDiscreteGpu, mem_limits,
  69       BrowserGpuMemoryBufferManager::current(), nullptr));
  70
  71   gpu::GLInProcessContext* context_ptr = context.get();
  72
  73   ContextHolder holder;
  74   holder.command_buffer =
  75       scoped_ptr<WebGraphicsContext3DInProcessCommandBufferImpl>(
  76           WebGraphicsContext3DInProcessCommandBufferImpl::WrapContext(
  77               context.Pass(), attributes));
  78   holder.gl_in_process_context = context_ptr;
  79
  80   return holder;
  81 }
  82
  83 scoped_ptr<WebGraphicsContext3DCommandBufferImpl> CreateContext3D(
  84     const blink::WebGraphicsContext3D::Attributes& attributes,
  85     const content::WebGraphicsContext3DCommandBufferImpl::SharedMemoryLimits&
  86         mem_limits) {
  87   DCHECK(RenderThreadImpl::current());
  88   CauseForGpuLaunch cause =
  89       CAUSE_FOR_GPU_LAUNCH_WEBGRAPHICSCONTEXT3DCOMMANDBUFFERIMPL_INITIALIZE;
  90   scoped_refptr<GpuChannelHost> gpu_channel_host(
  91       RenderThreadImpl::current()->EstablishGpuChannelSync(cause));
  92   CHECK(gpu_channel_host.get());
  93
  94   int surface_id = 0;
  95   bool lose_context_when_out_of_memory = true;
  96   return make_scoped_ptr(new WebGraphicsContext3DCommandBufferImpl(
  97       surface_id, GURL(), gpu_channel_host.get(), attributes,
  98       lose_context_when_out_of_memory, mem_limits, NULL));
  99 }
 100
 101 }  // namespace
 102
 103 class SynchronousCompositorFactoryImpl::VideoContextProvider
 104     : public StreamTextureFactorySynchronousImpl::ContextProvider {
 105  public:
 106   VideoContextProvider(
 107       scoped_refptr<cc::ContextProvider> context_provider,
 108       gpu::GLInProcessContext* gl_in_process_context)
 109       : context_provider_(context_provider),
 110         gl_in_process_context_(gl_in_process_context) {
 111     context_provider_->BindToCurrentThread();
 112   }
 113
 114   scoped_refptr<gfx::SurfaceTexture> GetSurfaceTexture(
 115       uint32 stream_id) override {
 116     return gl_in_process_context_->GetSurfaceTexture(stream_id);
 117   }
 118
 119   gpu::gles2::GLES2Interface* ContextGL() override {
 120     return context_provider_->ContextGL();
 121   }
 122
 123   void AddObserver(StreamTextureFactoryContextObserver* obs) override {
 124     observer_list_.AddObserver(obs);
 125   }
 126
 127   void RemoveObserver(StreamTextureFactoryContextObserver* obs) override {
 128     observer_list_.RemoveObserver(obs);
 129   }
 130
 131   void RestoreContext() {
 132     FOR_EACH_OBSERVER(StreamTextureFactoryContextObserver,
 133                       observer_list_,
 134                       ResetStreamTextureProxy());
 135   }
 136
 137  private:
 138   friend class base::RefCountedThreadSafe<VideoContextProvider>;
 139   ~VideoContextProvider() override {}
 140
 141   scoped_refptr<cc::ContextProvider> context_provider_;
 142   gpu::GLInProcessContext* gl_in_process_context_;
 143   base::ObserverList<StreamTextureFactoryContextObserver> observer_list_;
 144
 145   DISALLOW_COPY_AND_ASSIGN(VideoContextProvider);
 146 };
 147
 148 SynchronousCompositorFactoryImpl::SynchronousCompositorFactoryImpl()
 149     : record_full_layer_(true),
 150       use_ipc_command_buffer_(false),
 151       num_hardware_compositors_(0) {
 152   SynchronousCompositorFactory::SetInstance(this);
 153 }
 154
 155 SynchronousCompositorFactoryImpl::~SynchronousCompositorFactoryImpl() {}
 156
 157 scoped_refptr<base::SingleThreadTaskRunner>
 158 SynchronousCompositorFactoryImpl::GetCompositorTaskRunner() {
 159   return BrowserThread::GetMessageLoopProxyForThread(BrowserThread::UI);
 160 }
 161
 162 bool
 163 SynchronousCompositorFactoryImpl::RecordFullLayer() {
 164   return record_full_layer_;
 165 }
 166
 167 scoped_ptr<cc::OutputSurface>
 168 SynchronousCompositorFactoryImpl::CreateOutputSurface(
 169     int routing_id,
 170     scoped_refptr<content::FrameSwapMessageQueue> frame_swap_message_queue) {
 171   scoped_refptr<cc::ContextProvider> onscreen_context =
 172       CreateContextProviderForCompositor(RENDER_COMPOSITOR_CONTEXT);
 173   scoped_refptr<cc::ContextProvider> worker_context =
 174       CreateContextProviderForCompositor(RENDER_WORKER_CONTEXT);
 175
 176   return make_scoped_ptr(new SynchronousCompositorOutputSurface(
 177       onscreen_context, worker_context, routing_id, frame_swap_message_queue));
 178 }
 179
 180 InputHandlerManagerClient*
 181 SynchronousCompositorFactoryImpl::GetInputHandlerManagerClient() {
 182   return synchronous_input_event_filter();
 183 }
 184
 185 scoped_ptr<cc::BeginFrameSource>
 186 SynchronousCompositorFactoryImpl::CreateExternalBeginFrameSource(
 187     int routing_id) {
 188   return make_scoped_ptr(
 189              new SynchronousCompositorExternalBeginFrameSource(routing_id));
 190 }
 191
 192 bool SynchronousCompositorFactoryImpl::OverrideWithFactory() {
 193   return !use_ipc_command_buffer_;
 194 }
 195
 196 scoped_refptr<ContextProviderWebContext>
 197 SynchronousCompositorFactoryImpl::CreateOffscreenContextProvider(
 198     const blink::WebGraphicsContext3D::Attributes& attributes,
 199     const std::string& debug_name) {
 200   DCHECK(!use_ipc_command_buffer_);
 201   ContextHolder holder =
 202       CreateContextHolder(attributes, GpuThreadService(),
 203                           gpu::GLInProcessContextSharedMemoryLimits(), true);
 204   return ContextProviderInProcess::Create(holder.command_buffer.Pass(),
 205                                           debug_name);
 206 }
 207
 208 scoped_refptr<cc::ContextProvider>
 209 SynchronousCompositorFactoryImpl::CreateContextProviderForCompositor(
 210     CommandBufferContextType type) {
 211   // This is half of what RenderWidget uses because synchronous compositor
 212   // pipeline is only one frame deep. But twice of half for low end here
 213   // because 16bit texture is not supported.
 214   unsigned int mapped_memory_reclaim_limit =
 215       (base::SysInfo::IsLowEndDevice() ? 2 : 6) * 1024 * 1024;
 216   blink::WebGraphicsContext3D::Attributes attributes = GetDefaultAttribs();
 217
 218   if (use_ipc_command_buffer_) {
 219     WebGraphicsContext3DCommandBufferImpl::SharedMemoryLimits mem_limits;
 220     mem_limits.mapped_memory_reclaim_limit = mapped_memory_reclaim_limit;
 221     scoped_ptr<WebGraphicsContext3DCommandBufferImpl> context =
 222         CreateContext3D(GetDefaultAttribs(), mem_limits);
 223     return ContextProviderCommandBuffer::Create(context.Pass(), type);
 224   }
 225
 226   gpu::GLInProcessContextSharedMemoryLimits mem_limits;
 227   mem_limits.mapped_memory_reclaim_limit = mapped_memory_reclaim_limit;
 228   ContextHolder holder =
 229       CreateContextHolder(attributes, GpuThreadService(), mem_limits, true);
 230   return ContextProviderInProcess::Create(holder.command_buffer.Pass(),
 231                                           "Child-Compositor");
 232 }
 233
 234 scoped_refptr<StreamTextureFactory>
 235 SynchronousCompositorFactoryImpl::CreateStreamTextureFactory(int frame_id) {
 236   scoped_refptr<StreamTextureFactorySynchronousImpl> factory(
 237       StreamTextureFactorySynchronousImpl::Create(
 238           base::Bind(
 239               &SynchronousCompositorFactoryImpl::TryCreateStreamTextureFactory,
 240               base::Unretained(this)),
 241           frame_id));
 242   return factory;
 243 }
 244
 245 WebGraphicsContext3DInProcessCommandBufferImpl*
 246 SynchronousCompositorFactoryImpl::CreateOffscreenGraphicsContext3D(
 247     const blink::WebGraphicsContext3D::Attributes& attributes) {
 248   DCHECK(!use_ipc_command_buffer_);
 249   ContextHolder holder =
 250       CreateContextHolder(attributes, GpuThreadService(),
 251                           gpu::GLInProcessContextSharedMemoryLimits(), true);
 252   return holder.command_buffer.release();
 253 }
 254
 255 gpu::GPUInfo SynchronousCompositorFactoryImpl::GetGPUInfo() const {
 256   DCHECK(!use_ipc_command_buffer_);
 257   return content::GpuDataManager::GetInstance()->GetGPUInfo();
 258 }
 259
 260 void SynchronousCompositorFactoryImpl::CompositorInitializedHardwareDraw() {
 261   base::AutoLock lock(num_hardware_compositor_lock_);
 262   num_hardware_compositors_++;
 263   if (num_hardware_compositors_ == 1 && main_thread_task_runner_.get()) {
 264     main_thread_task_runner_->PostTask(
 265         FROM_HERE,
 266         base::Bind(
 267             &SynchronousCompositorFactoryImpl::RestoreContextOnMainThread,
 268             base::Unretained(this)));
 269   }
 270 }
 271
 272 void SynchronousCompositorFactoryImpl::CompositorReleasedHardwareDraw() {
 273   base::AutoLock lock(num_hardware_compositor_lock_);
 274   DCHECK_GT(num_hardware_compositors_, 0u);
 275   num_hardware_compositors_--;
 276 }
 277
 278 void SynchronousCompositorFactoryImpl::RestoreContextOnMainThread() {
 279   if (CanCreateMainThreadContext() && video_context_provider_.get())
 280     video_context_provider_->RestoreContext();
 281 }
 282
 283 bool SynchronousCompositorFactoryImpl::CanCreateMainThreadContext() {
 284   base::AutoLock lock(num_hardware_compositor_lock_);
 285   return num_hardware_compositors_ > 0;
 286 }
 287
 288 scoped_refptr<StreamTextureFactorySynchronousImpl::ContextProvider>
 289 SynchronousCompositorFactoryImpl::TryCreateStreamTextureFactory() {
 290   {
 291     base::AutoLock lock(num_hardware_compositor_lock_);
 292     main_thread_task_runner_ = base::ThreadTaskRunnerHandle::Get();
 293   }
 294
 295   // Always fail creation even if |video_context_provider_| is not NULL.
 296   // This is to avoid synchronous calls that may deadlock. Setting
 297   // |video_context_provider_| to null is also not safe since it makes
 298   // synchronous destruction uncontrolled and possibly deadlock.
 299   if (!CanCreateMainThreadContext()) {
 300     return
 301         scoped_refptr<StreamTextureFactorySynchronousImpl::ContextProvider>();
 302   }
 303
 304   if (!video_context_provider_.get()) {
 305     DCHECK(android_view_service_.get());
 306
 307     blink::WebGraphicsContext3D::Attributes attributes = GetDefaultAttribs();
 308     attributes.shareResources = false;
 309     // This needs to run in on-screen |android_view_service_| context due to
 310     // SurfaceTexture limitations.
 311     ContextHolder holder =
 312         CreateContextHolder(attributes, android_view_service_,
 313                             gpu::GLInProcessContextSharedMemoryLimits(), false);
 314     video_context_provider_ = new VideoContextProvider(
 315         ContextProviderInProcess::Create(holder.command_buffer.Pass(),
 316                                          "Video-Offscreen-main-thread"),
 317         holder.gl_in_process_context);
 318   }
 319   return video_context_provider_;
 320 }
 321
 322 void SynchronousCompositorFactoryImpl::SetDeferredGpuService(
 323     scoped_refptr<gpu::InProcessCommandBuffer::Service> service) {
 324   DCHECK(!android_view_service_.get());
 325   android_view_service_ = service;
 326 }
 327
 328 base::Thread* SynchronousCompositorFactoryImpl::CreateInProcessGpuThread(
 329     const InProcessChildThreadParams& params) {
 330   DCHECK(android_view_service_.get());
 331   return new InProcessGpuThread(params,
 332                                 android_view_service_->sync_point_manager());
 333 }
 334
 335 scoped_refptr<gpu::InProcessCommandBuffer::Service>
 336 SynchronousCompositorFactoryImpl::GpuThreadService() {
 337   DCHECK(android_view_service_.get());
 338   // Create thread lazily on first use.
 339   if (!gpu_thread_service_.get()) {
 340     gpu_thread_service_ = new gpu::GpuInProcessThread(
 341         android_view_service_->sync_point_manager());
 342   }
 343   return gpu_thread_service_;
 344 }
 345
 346 void SynchronousCompositorFactoryImpl::SetRecordFullDocument(
 347     bool record_full_document) {
 348   record_full_layer_ = record_full_document;
 349 }
 350
 351 void SynchronousCompositorFactoryImpl::SetUseIpcCommandBuffer() {
 352   use_ipc_command_buffer_ = true;
 353 }
 354
 355 }  // namespace content