cc/trees/layer_tree_host_single_thread_client.h

   1 // Copyright 2013 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_TREES_LAYER_TREE_HOST_SINGLE_THREAD_CLIENT_H_
   6 #define CC_TREES_LAYER_TREE_HOST_SINGLE_THREAD_CLIENT_H_
   7
   8 namespace cc {
   9
  10 class LayerTreeHostSingleThreadClient {
  11  public:
  12   // Request that the client schedule a composite.
  13   virtual void ScheduleComposite() {}
  14   // Request that the client schedule a composite now, and calculate appropriate
  15   // delay for potential future frame.
  16   virtual void ScheduleAnimation() {}
  17
  18   // Called whenever the compositor posts a SwapBuffers (either full or
  19   // partial). After DidPostSwapBuffers(), exactly one of
  20   // DidCompleteSwapBuffers() or DidAbortSwapBuffers() will be called, thus
  21   // these functions can be used to keep track of pending swap buffers calls for
  22   // rate limiting.
  23   virtual void DidPostSwapBuffers() = 0;
  24   virtual void DidCompleteSwapBuffers() = 0;
  25   virtual void DidAbortSwapBuffers() = 0;
  26
  27  protected:
  28   virtual ~LayerTreeHostSingleThreadClient() {}
  29 };
  30
  31 }  // namespace cc
  32
  33 #endif  // CC_TREES_LAYER_TREE_HOST_SINGLE_THREAD_CLIENT_H_