cc/resource_update_queue.h

   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 #ifndef CC_RESOURCE_UPDATE_QUEUE_H_
   6 #define CC_RESOURCE_UPDATE_QUEUE_H_
   7
   8 #include "base/basictypes.h"
   9 #include "cc/cc_export.h"
  10 #include "cc/resource_update.h"
  11 #include "cc/texture_copier.h"
  12 #include <deque>
  13
  14 namespace cc {
  15
  16 class CC_EXPORT ResourceUpdateQueue {
  17 public:
  18     ResourceUpdateQueue();
  19     virtual ~ResourceUpdateQueue();
  20
  21     void appendFullUpload(const ResourceUpdate&);
  22     void appendPartialUpload(const ResourceUpdate&);
  23     void appendCopy(TextureCopier::Parameters);
  24
  25     void clearUploadsToEvictedResources();
  26
  27     ResourceUpdate takeFirstFullUpload();
  28     ResourceUpdate takeFirstPartialUpload();
  29     TextureCopier::Parameters takeFirstCopy();
  30
  31     size_t fullUploadSize() const { return m_fullEntries.size(); }
  32     size_t partialUploadSize() const { return m_partialEntries.size(); }
  33     size_t copySize() const { return m_copyEntries.size(); }
  34
  35     bool hasMoreUpdates() const;
  36
  37 private:
  38     void clearUploadsToEvictedResources(std::deque<ResourceUpdate>& entryQueue);
  39     std::deque<ResourceUpdate> m_fullEntries;
  40     std::deque<ResourceUpdate> m_partialEntries;
  41     std::deque<TextureCopier::Parameters> m_copyEntries;
  42
  43     DISALLOW_COPY_AND_ASSIGN(ResourceUpdateQueue);
  44 };
  45
  46 }
  47
  48 #endif  // CC_RESOURCE_UPDATE_QUEUE_H_