content/browser/compositor/software_browser_compositor_output_surface.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/compositor/software_browser_compositor_output_surface.h"
   6
   7 #include "base/location.h"
   8 #include "base/memory/ref_counted.h"
   9 #include "base/single_thread_task_runner.h"
  10 #include "base/thread_task_runner_handle.h"
  11 #include "base/time/time.h"
  12 #include "cc/output/compositor_frame.h"
  13 #include "cc/output/output_surface_client.h"
  14 #include "cc/output/software_output_device.h"
  15 #include "content/browser/renderer_host/render_widget_host_impl.h"
  16 #include "ui/events/latency_info.h"
  17 #include "ui/gfx/vsync_provider.h"
  18
  19 namespace content {
  20
  21 SoftwareBrowserCompositorOutputSurface::SoftwareBrowserCompositorOutputSurface(
  22     scoped_ptr<cc::SoftwareOutputDevice> software_device,
  23     const scoped_refptr<ui::CompositorVSyncManager>& vsync_manager)
  24     : BrowserCompositorOutputSurface(software_device.Pass(),
  25                                      vsync_manager),
  26       weak_factory_(this) {
  27 }
  28
  29 SoftwareBrowserCompositorOutputSurface::
  30     ~SoftwareBrowserCompositorOutputSurface() {
  31 }
  32
  33 void SoftwareBrowserCompositorOutputSurface::SwapBuffers(
  34     cc::CompositorFrame* frame) {
  35   base::TimeTicks swap_time = base::TimeTicks::Now();
  36   for (auto& latency : frame->metadata.latency_info) {
  37     latency.AddLatencyNumberWithTimestamp(
  38         ui::INPUT_EVENT_GPU_SWAP_BUFFER_COMPONENT, 0, 0, swap_time, 1);
  39     latency.AddLatencyNumberWithTimestamp(
  40         ui::INPUT_EVENT_LATENCY_TERMINATED_FRAME_SWAP_COMPONENT, 0, 0,
  41         swap_time, 1);
  42   }
  43   base::ThreadTaskRunnerHandle::Get()->PostTask(
  44       FROM_HERE, base::Bind(&RenderWidgetHostImpl::CompositorFrameDrawn,
  45                             frame->metadata.latency_info));
  46
  47   gfx::VSyncProvider* vsync_provider = software_device()->GetVSyncProvider();
  48   if (vsync_provider) {
  49     vsync_provider->GetVSyncParameters(base::Bind(
  50         &BrowserCompositorOutputSurface::OnUpdateVSyncParametersFromGpu,
  51         weak_factory_.GetWeakPtr()));
  52   }
  53   PostSwapBuffersComplete();
  54   client_->DidSwapBuffers();
  55 }
  56
  57 #if defined(OS_MACOSX)
  58 void SoftwareBrowserCompositorOutputSurface::OnSurfaceDisplayed() {
  59   // See GpuBrowserCompositorOutputSurface for when and how this is used.
  60   NOTREACHED() << "Not expected for software surfaces.";
  61 }
  62
  63 void SoftwareBrowserCompositorOutputSurface::SetSurfaceSuspendedForRecycle(
  64     bool suspended) {
  65 }
  66
  67 bool SoftwareBrowserCompositorOutputSurface::
  68     SurfaceShouldNotShowFramesAfterSuspendForRecycle() const {
  69   return false;
  70 }
  71 #endif
  72
  73 }  // namespace content