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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 "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 "cc/quads/draw_quad.h"
10 #include "cc/quads/texture_draw_quad.h"
11 #include "ui/gfx/rect_conversions.h"
12 #include "ui/gfx/transform.h"
13 
14 namespace cc {
15 
OverlayProcessor(OutputSurface * surface,ResourceProvider * resource_provider)16 OverlayProcessor::OverlayProcessor(OutputSurface* surface,
17                                    ResourceProvider* resource_provider)
18     : surface_(surface), resource_provider_(resource_provider) {}
19 
Initialize()20 void OverlayProcessor::Initialize() {
21   DCHECK(surface_);
22   if (!resource_provider_)
23     return;
24 
25   OverlayCandidateValidator* candidates =
26       surface_->overlay_candidate_validator();
27   if (candidates) {
28     strategies_.push_back(scoped_ptr<Strategy>(
29         new OverlayStrategySingleOnTop(candidates, resource_provider_)));
30   }
31 }
32 
~OverlayProcessor()33 OverlayProcessor::~OverlayProcessor() {}
34 
ProcessForOverlays(RenderPassList * render_passes_in_draw_order,OverlayCandidateList * candidate_list)35 void OverlayProcessor::ProcessForOverlays(
36     RenderPassList* render_passes_in_draw_order,
37     OverlayCandidateList* candidate_list) {
38   for (StrategyList::iterator it = strategies_.begin(); it != strategies_.end();
39        ++it) {
40     if ((*it)->Attempt(render_passes_in_draw_order, candidate_list))
41       return;
42   }
43 }
44 
45 }  // namespace cc
46