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 "cc/output/overlay_processor.h"
6
7#include "cc/output/output_surface.h"
8#include "cc/output/overlay_strategy_single_on_top.h"
9#include "ui/gfx/geometry/rect_conversions.h"
10#include "ui/gfx/transform.h"
11
12namespace cc {
13
14OverlayProcessor::OverlayProcessor(OutputSurface* surface,
15                                   ResourceProvider* resource_provider)
16    : surface_(surface), resource_provider_(resource_provider) {}
17
18void OverlayProcessor::Initialize() {
19  DCHECK(surface_);
20  if (!resource_provider_)
21    return;
22
23  OverlayCandidateValidator* candidates =
24      surface_->overlay_candidate_validator();
25  if (candidates) {
26    strategies_.push_back(scoped_ptr<Strategy>(
27        new OverlayStrategySingleOnTop(candidates, resource_provider_)));
28  }
29}
30
31OverlayProcessor::~OverlayProcessor() {}
32
33void OverlayProcessor::ProcessForOverlays(
34    RenderPassList* render_passes_in_draw_order,
35    OverlayCandidateList* candidate_list) {
36  for (StrategyList::iterator it = strategies_.begin(); it != strategies_.end();
37       ++it) {
38    if ((*it)->Attempt(render_passes_in_draw_order, candidate_list))
39      return;
40  }
41}
42
43}  // namespace cc
44