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      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/memory/ref_counted.h"
      8 #include "base/message_loop/message_loop.h"
      9 #include "base/time/time.h"
     10 #include "cc/output/compositor_frame.h"
     11 #include "cc/output/software_output_device.h"
     12 #include "content/browser/compositor/browser_compositor_output_surface_proxy.h"
     13 #include "content/browser/renderer_host/render_widget_host_impl.h"
     14 #include "ui/events/latency_info.h"
     15 #include "ui/gfx/vsync_provider.h"
     16 
     17 namespace content {
     18 
     19 SoftwareBrowserCompositorOutputSurface::SoftwareBrowserCompositorOutputSurface(
     20     scoped_refptr<BrowserCompositorOutputSurfaceProxy> surface_proxy,
     21     scoped_ptr<cc::SoftwareOutputDevice> software_device,
     22     int surface_id,
     23     IDMap<BrowserCompositorOutputSurface>* output_surface_map,
     24     const scoped_refptr<ui::CompositorVSyncManager>& vsync_manager)
     25     : BrowserCompositorOutputSurface(software_device.Pass(),
     26                                      surface_id,
     27                                      output_surface_map,
     28                                      vsync_manager),
     29       output_surface_proxy_(surface_proxy) {}
     30 
     31 SoftwareBrowserCompositorOutputSurface::
     32     ~SoftwareBrowserCompositorOutputSurface() {}
     33 
     34 void SoftwareBrowserCompositorOutputSurface::SwapBuffers(
     35     cc::CompositorFrame* frame) {
     36   for (size_t i = 0; i < frame->metadata.latency_info.size(); i++) {
     37     frame->metadata.latency_info[i].AddLatencyNumber(
     38         ui::INPUT_EVENT_LATENCY_TERMINATED_FRAME_SWAP_COMPONENT, 0, 0);
     39   }
     40   base::MessageLoop::current()->PostTask(
     41       FROM_HERE,
     42       base::Bind(
     43           &RenderWidgetHostImpl::CompositorFrameDrawn,
     44           frame->metadata.latency_info));
     45 
     46   gfx::VSyncProvider* vsync_provider = software_device()->GetVSyncProvider();
     47   if (vsync_provider) {
     48     vsync_provider->GetVSyncParameters(
     49         base::Bind(&BrowserCompositorOutputSurfaceProxy::
     50                         OnUpdateVSyncParametersOnCompositorThread,
     51                    output_surface_proxy_,
     52                    surface_id_));
     53   }
     54 }
     55 
     56 }  // namespace content
     57