// 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/resources/tile_task_runner.h"

#include <algorithm>

namespace cc {

TileTask::TileTask() : did_schedule_(false), did_complete_(false) {
}

TileTask::~TileTask() {
  // Debugging CHECKs to help track down a use-after-free.
  CHECK(!did_schedule_);
  CHECK(!did_run_ || did_complete_);
}

ImageDecodeTask* TileTask::AsImageDecodeTask() {
  return NULL;
}

RasterTask* TileTask::AsRasterTask() {
  return NULL;
}

void TileTask::WillSchedule() {
  DCHECK(!did_schedule_);
}

void TileTask::DidSchedule() {
  did_schedule_ = true;
  did_complete_ = false;
}

bool TileTask::HasBeenScheduled() const {
  return did_schedule_;
}

void TileTask::WillComplete() {
  DCHECK(!did_complete_);
}

void TileTask::DidComplete() {
  DCHECK(did_schedule_);
  DCHECK(!did_complete_);
  did_schedule_ = false;
  did_complete_ = true;
}

bool TileTask::HasCompleted() const {
  return did_complete_;
}

ImageDecodeTask::ImageDecodeTask() {
}

ImageDecodeTask::~ImageDecodeTask() {
}

ImageDecodeTask* ImageDecodeTask::AsImageDecodeTask() {
  return this;
}

RasterTask::RasterTask(const Resource* resource,
                       ImageDecodeTask::Vector* dependencies)
    : resource_(resource) {
  dependencies_.swap(*dependencies);
}

RasterTask::~RasterTask() {
}

RasterTask* RasterTask::AsRasterTask() {
  return this;
}

TileTaskQueue::Item::Item(RasterTask* task, const TaskSetCollection& task_sets)
    : task(task), task_sets(task_sets) {
  DCHECK(task_sets.any());
}

TileTaskQueue::Item::~Item() {
}

TileTaskQueue::TileTaskQueue() {
}

TileTaskQueue::~TileTaskQueue() {
}

void TileTaskQueue::Swap(TileTaskQueue* other) {
  items.swap(other->items);
}

void TileTaskQueue::Reset() {
  items.clear();
}

}  // namespace cc