Get rid of virtual Display::CreateScheduler.

content/browser/compositor/gpu_process_transport_factory.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/browser/compositor/gpu_process_transport_factory.h"
 
 #include <string>
 #include <utility>
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/location.h"
 #include "base/metrics/histogram.h"
 #include "base/profiler/scoped_tracker.h"
 #include "base/single_thread_task_runner.h"
 #include "base/threading/simple_thread.h"
 #include "base/threading/thread.h"
 #include "base/threading/thread_task_runner_handle.h"
 #include "build/build_config.h"
 #include "cc/base/histograms.h"
 #include "cc/output/compositor_frame.h"
 #include "cc/output/output_surface.h"
+#include "cc/output/texture_mailbox_deleter.h"
 #include "cc/output/vulkan_in_process_context_provider.h"
 #include "cc/raster/single_thread_task_graph_runner.h"
 #include "cc/raster/task_graph_runner.h"
+#include "cc/scheduler/begin_frame_source.h"
+#include "cc/scheduler/delay_based_time_source.h"
 #include "cc/surfaces/display.h"
+#include "cc/surfaces/display_scheduler.h"
 #include "cc/surfaces/surface_display_output_surface.h"
 #include "cc/surfaces/surface_manager.h"
 #include "components/display_compositor/compositor_overlay_candidate_validator.h"
 #include "components/display_compositor/gl_helper.h"
 #include "content/browser/compositor/browser_compositor_output_surface.h"
 #include "content/browser/compositor/gpu_browser_compositor_output_surface.h"
 #include "content/browser/compositor/gpu_surfaceless_browser_compositor_output_surface.h"
 #include "content/browser/compositor/offscreen_browser_compositor_output_surface.h"
 #include "content/browser/compositor/reflector_impl.h"
 #include "content/browser/compositor/software_browser_compositor_output_surface.h"
@@ skipping 108 matching lines @@
 }
 #endif
 
 }  // namespace
 
 namespace content {
 
 struct GpuProcessTransportFactory::PerCompositorData {
   gpu::SurfaceHandle surface_handle = gpu::kNullSurfaceHandle;
   BrowserCompositorOutputSurface* display_output_surface = nullptr;
+  cc::SyntheticBeginFrameSource* begin_frame_source = nullptr;
   ReflectorImpl* reflector = nullptr;
   std::unique_ptr<cc::Display> display;
   bool output_is_secure = false;
 };
 
 GpuProcessTransportFactory::GpuProcessTransportFactory()
     : next_surface_id_namespace_(1u),
       task_graph_runner_(new cc::SingleThreadTaskGraphRunner),
       callback_factory_(this) {
   cc::SetClientNameForMetrics("Browser");
@@ skipping 107 matching lines @@
 void GpuProcessTransportFactory::CreateOutputSurface(
     base::WeakPtr<ui::Compositor> compositor) {
   DCHECK(!!compositor);
   PerCompositorData* data = per_compositor_data_[compositor.get()];
   if (!data) {
     data = CreatePerCompositorData(compositor.get());
   } else {
     // TODO(danakj): We can destroy the |data->display| here when the compositor
     // destroys its OutputSurface before calling back here.
     data->display_output_surface = nullptr;
+    data->begin_frame_source = nullptr;
   }
 
 #if defined(OS_WIN)
   gfx::RenderingWindowManager::GetInstance()->UnregisterParent(
       compositor->widget());
 #endif
 
   const bool use_vulkan = static_cast<bool>(SharedVulkanContextProvider());
 
   const bool create_gpu_output_surface =
@@ skipping 121 matching lines @@
       // Try again.
       BrowserGpuChannelHostFactory::instance()->EstablishGpuChannel(
           CAUSE_FOR_GPU_LAUNCH_SHARED_WORKER_THREAD_CONTEXT,
           base::Bind(&GpuProcessTransportFactory::EstablishedGpuChannel,
                      callback_factory_.GetWeakPtr(), compositor,
                      create_gpu_output_surface, num_attempts + 1));
       return;
     }
   }
 
+  std::unique_ptr<cc::SyntheticBeginFrameSource> begin_frame_source;
+  if (!compositor->GetRendererSettings().disable_display_vsync) {
+    begin_frame_source.reset(new cc::DelayBasedBeginFrameSource(
+        base::MakeUnique<cc::DelayBasedTimeSource>(
+            compositor->task_runner().get())));
+  } else {
+    begin_frame_source.reset(new cc::BackToBackBeginFrameSource(
+        base::MakeUnique<cc::DelayBasedTimeSource>(
+            compositor->task_runner().get())));
+  }
+
   std::unique_ptr<BrowserCompositorOutputSurface> display_output_surface;
 #if defined(ENABLE_VULKAN)
   std::unique_ptr<VulkanBrowserCompositorOutputSurface> vulkan_surface;
   if (vulkan_context_provider) {
     vulkan_surface.reset(new VulkanBrowserCompositorOutputSurface(
         vulkan_context_provider, compositor->vsync_manager(),
         compositor->task_runner().get()));
     if (!vulkan_surface->Initialize(compositor.get()->widget())) {
       vulkan_surface->Destroy();
       vulkan_surface.reset();
     } else {
       display_output_surface = std::move(vulkan_surface);
     }
   }
 #endif
 
   if (!display_output_surface) {
     if (!create_gpu_output_surface) {
       display_output_surface =
           base::WrapUnique(new SoftwareBrowserCompositorOutputSurface(
               CreateSoftwareOutputDevice(compositor.get()),
-              compositor->vsync_manager(), compositor->task_runner().get()));
+              compositor->vsync_manager(), begin_frame_source.get()));
     } else {
       DCHECK(context_provider);
       const auto& capabilities = context_provider->ContextCapabilities();
       if (data->surface_handle == gpu::kNullSurfaceHandle) {
         display_output_surface =
             base::WrapUnique(new OffscreenBrowserCompositorOutputSurface(
                 context_provider, compositor->vsync_manager(),
-                compositor->task_runner().get(),
+                begin_frame_source.get(),
                 std::unique_ptr<display_compositor::
                                     CompositorOverlayCandidateValidator>()));
       } else if (capabilities.surfaceless) {
 #if defined(OS_MACOSX)
         display_output_surface = base::WrapUnique(new GpuOutputSurfaceMac(
             context_provider, data->surface_handle, compositor->vsync_manager(),
-            compositor->task_runner().get(),
+            begin_frame_source.get(),
             CreateOverlayCandidateValidator(compositor->widget()),
             BrowserGpuMemoryBufferManager::current()));
 #else
         display_output_surface =
             base::WrapUnique(new GpuSurfacelessBrowserCompositorOutputSurface(
                 context_provider, data->surface_handle,
-                compositor->vsync_manager(), compositor->task_runner().get(),
+                compositor->vsync_manager(), begin_frame_source.get(),
                 CreateOverlayCandidateValidator(compositor->widget()),
                 GL_TEXTURE_2D, GL_RGB,
                 BrowserGpuMemoryBufferManager::current()));
 #endif
       } else {
         std::unique_ptr<display_compositor::CompositorOverlayCandidateValidator>
             validator;
 #if !defined(OS_MACOSX)
         // Overlays are only supported on surfaceless output surfaces on Mac.
         validator = CreateOverlayCandidateValidator(compositor->widget());
 #endif
         display_output_surface =
             base::WrapUnique(new GpuBrowserCompositorOutputSurface(
                 context_provider, compositor->vsync_manager(),
-                compositor->task_runner().get(), std::move(validator)));
+                begin_frame_source.get(), std::move(validator)));
       }
     }
   }
 
   data->display_output_surface = display_output_surface.get();
+  data->begin_frame_source = begin_frame_source.get();
   if (data->reflector)
     data->reflector->OnSourceSurfaceReady(data->display_output_surface);
 
 #if defined(OS_WIN)
   gfx::RenderingWindowManager::GetInstance()->DoSetParentOnChild(
       compositor->widget());
 #endif
 
+  std::unique_ptr<cc::DisplayScheduler> scheduler(new cc::DisplayScheduler(
+      begin_frame_source.get(), compositor->task_runner().get(),
+      display_output_surface->capabilities().max_frames_pending));
+
   // The Display owns and uses the |display_output_surface| created above.
   data->display = base::MakeUnique<cc::Display>(
       surface_manager_.get(), HostSharedBitmapManager::current(),
       BrowserGpuMemoryBufferManager::current(),
       compositor->GetRendererSettings(),
       compositor->surface_id_allocator()->id_namespace(),
-      compositor->task_runner().get(), std::move(display_output_surface));
+      std::move(begin_frame_source), std::move(display_output_surface),
+      std::move(scheduler), base::MakeUnique<cc::TextureMailboxDeleter>(
+                                compositor->task_runner().get()));
 
   // The |delegated_output_surface| is given back to the compositor, it
   // delegates to the Display as its root surface. Importantly, it shares the
   // same ContextProvider as the Display's output surface.
   std::unique_ptr<cc::SurfaceDisplayOutputSurface> delegated_output_surface(
       vulkan_context_provider
           ? new cc::SurfaceDisplayOutputSurface(
                 surface_manager_.get(), compositor->surface_id_allocator(),
                 data->display.get(),
                 static_cast<scoped_refptr<cc::VulkanContextProvider>>(
@@ skipping 112 matching lines @@
 }
 
 void GpuProcessTransportFactory::SetAuthoritativeVSyncInterval(
     ui::Compositor* compositor,
     base::TimeDelta interval) {
   PerCompositorDataMap::iterator it = per_compositor_data_.find(compositor);
   if (it == per_compositor_data_.end())
     return;
   PerCompositorData* data = it->second;
   DCHECK(data);
-  if (data->display_output_surface) {
-    data->display_output_surface->begin_frame_source()
-        ->SetAuthoritativeVSyncInterval(interval);
-  }
+  if (data->begin_frame_source)
+    data->begin_frame_source->SetAuthoritativeVSyncInterval(interval);
 }
 
 void GpuProcessTransportFactory::SetOutputIsSecure(ui::Compositor* compositor,
                                                    bool secure) {
   PerCompositorDataMap::iterator it = per_compositor_data_.find(compositor);
   if (it == per_compositor_data_.end())
     return;
   PerCompositorData* data = it->second;
   DCHECK(data);
   data->output_is_secure = secure;
@@ skipping 135 matching lines @@
       shared_vulkan_context_provider_ =
           cc::VulkanInProcessContextProvider::Create();
     }
 
     shared_vulkan_context_provider_initialized_ = true;
   }
   return shared_vulkan_context_provider_;
 }
 
 }  // namespace content