// Copyright 2014 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 "cc/output/overlay_processor.h"

#include "cc/output/output_surface.h"
#include "cc/output/overlay_strategy_single_on_top.h"
#include "cc/output/overlay_strategy_underlay.h"
#include "ui/gfx/geometry/rect_conversions.h"
#include "ui/gfx/transform.h"

namespace cc {

OverlayProcessor::OverlayProcessor(OutputSurface* surface) : surface_(surface) {
}

void OverlayProcessor::Initialize() {
  DCHECK(surface_);

  OverlayCandidateValidator* candidates =
      surface_->GetOverlayCandidateValidator();
  if (candidates) {
    strategies_.push_back(
        scoped_ptr<Strategy>(new OverlayStrategySingleOnTop(candidates)));
    strategies_.push_back(
        scoped_ptr<Strategy>(new OverlayStrategyUnderlay(candidates)));
  }
}

OverlayProcessor::~OverlayProcessor() {}

void OverlayProcessor::ProcessForOverlays(
    RenderPassList* render_passes_in_draw_order,
    OverlayCandidateList* candidate_list) {
  for (StrategyList::iterator it = strategies_.begin(); it != strategies_.end();
       ++it) {
    if ((*it)->Attempt(render_passes_in_draw_order, candidate_list))
      return;
  }
}

}  // namespace cc