cc/output/overlay_candidate_validator.h

   1 // Copyright 2014 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_OUTPUT_OVERLAY_CANDIDATE_VALIDATOR_H_
   6 #define CC_OUTPUT_OVERLAY_CANDIDATE_VALIDATOR_H_
   7
   8 #include <vector>
   9
  10 #include "base/basictypes.h"
  11 #include "cc/base/cc_export.h"
  12 #include "cc/output/overlay_candidate.h"
  13 #include "cc/resources/resource_format.h"
  14 #include "ui/gfx/geometry/rect.h"
  15
  16 namespace cc {
  17
  18 // This class that can be used to answer questions about possible overlay
  19 // configurations for a particular output device.
  20 class CC_EXPORT OverlayCandidateValidator {
  21  public:
  22   // A list of possible overlay candidates is presented to this function.
  23   // The expected result is that those candidates that can be in a separate
  24   // plane are marked with |overlay_handled| set to true, otherwise they are
  25   // to be traditionally composited.
  26   virtual void CheckOverlaySupport(OverlayCandidateList* surfaces) = 0;
  27
  28   virtual ~OverlayCandidateValidator() {}
  29 };
  30
  31 }  // namespace cc
  32
  33 #endif  // CC_OUTPUT_OVERLAY_CANDIDATE_VALIDATOR_H_