// Copyright 2013 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/aura/software_browser_compositor_output_surface.h"

#include "base/memory/ref_counted.h"
#include "base/message_loop/message_loop.h"
#include "base/time/time.h"
#include "cc/output/compositor_frame.h"
#include "cc/output/software_output_device.h"
#include "content/browser/aura/browser_compositor_output_surface_proxy.h"
#include "content/browser/renderer_host/render_widget_host_impl.h"
#include "ui/events/latency_info.h"
#include "ui/gfx/vsync_provider.h"

namespace content {

SoftwareBrowserCompositorOutputSurface::SoftwareBrowserCompositorOutputSurface(
    scoped_refptr<BrowserCompositorOutputSurfaceProxy> surface_proxy,
    scoped_ptr<cc::SoftwareOutputDevice> software_device,
    int surface_id,
    IDMap<BrowserCompositorOutputSurface>* output_surface_map,
    base::MessageLoopProxy* compositor_message_loop,
    base::WeakPtr<ui::Compositor> compositor)
    : BrowserCompositorOutputSurface(software_device.Pass(),
                                     surface_id,
                                     output_surface_map,
                                     compositor_message_loop,
                                     compositor),
      output_surface_proxy_(surface_proxy) {}

SoftwareBrowserCompositorOutputSurface::
    ~SoftwareBrowserCompositorOutputSurface() {}

void SoftwareBrowserCompositorOutputSurface::SwapBuffers(
    cc::CompositorFrame* frame) {
  // TODO(miletus) : Convert RenderWidgetHostImpl::CompositorFrameDrawn() to
  // take std::vector<ui::LatencyInfo> directly so we only post the task once.
  for (size_t i = 0; i < frame->metadata.latency_info.size(); i++) {
    frame->metadata.latency_info[i].AddLatencyNumber(
        ui::INPUT_EVENT_LATENCY_TERMINATED_FRAME_SWAP_COMPONENT, 0, 0);
    base::MessageLoop::current()->PostTask(
        FROM_HERE,
        base::Bind(
            &RenderWidgetHostImpl::CompositorFrameDrawn,
            frame->metadata.latency_info[i]));
  }

  gfx::VSyncProvider* vsync_provider = software_device()->GetVSyncProvider();
  if (vsync_provider) {
    vsync_provider->GetVSyncParameters(
        base::Bind(&BrowserCompositorOutputSurfaceProxy::
                        OnUpdateVSyncParametersOnCompositorThread,
                   output_surface_proxy_,
                   surface_id_));
  }
}

}  // namespace content