cc/resources/resource_update_queue.cc

   1 // Copyright 2012 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/resources/resource_update_queue.h"
   6
   7 #include "cc/resources/prioritized_resource.h"
   8
   9 namespace cc {
  10
  11 ResourceUpdateQueue::ResourceUpdateQueue() {}
  12
  13 ResourceUpdateQueue::~ResourceUpdateQueue() {}
  14
  15 void ResourceUpdateQueue::AppendFullUpload(const ResourceUpdate& upload) {
  16   full_entries_.push_back(upload);
  17 }
  18
  19 void ResourceUpdateQueue::AppendPartialUpload(const ResourceUpdate& upload) {
  20   partial_entries_.push_back(upload);
  21 }
  22
  23 void ResourceUpdateQueue::ClearUploadsToEvictedResources() {
  24   ClearUploadsToEvictedResources(&full_entries_);
  25   ClearUploadsToEvictedResources(&partial_entries_);
  26 }
  27
  28 void ResourceUpdateQueue::ClearUploadsToEvictedResources(
  29     std::deque<ResourceUpdate>* entry_queue) {
  30   std::deque<ResourceUpdate> temp;
  31   entry_queue->swap(temp);
  32   while (temp.size()) {
  33     ResourceUpdate upload = temp.front();
  34     temp.pop_front();
  35     if (!upload.texture->BackingResourceWasEvicted())
  36       entry_queue->push_back(upload);
  37   }
  38 }
  39
  40 ResourceUpdate ResourceUpdateQueue::TakeFirstFullUpload() {
  41   ResourceUpdate first = full_entries_.front();
  42   full_entries_.pop_front();
  43   return first;
  44 }
  45
  46 ResourceUpdate ResourceUpdateQueue::TakeFirstPartialUpload() {
  47   ResourceUpdate first = partial_entries_.front();
  48   partial_entries_.pop_front();
  49   return first;
  50 }
  51
  52 bool ResourceUpdateQueue::HasMoreUpdates() const {
  53   return !full_entries_.empty() || !partial_entries_.empty();
  54 }
  55
  56 }  // namespace cc