cc/resources/sync_point_helper.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_RESOURCES_SYNC_POINT_HELPER_H_
   6 #define CC_RESOURCES_SYNC_POINT_HELPER_H_
   7
   8 #include "base/callback.h"
   9 #include "cc/base/cc_export.h"
  10
  11 namespace WebKit { class WebGraphicsContext3D; }
  12
  13 namespace cc {
  14
  15 class CC_EXPORT SyncPointHelper {
  16  public:
  17   // Requests a callback to |closure| when the |sync_point| is reached by the
  18   // |context3d|.
  19   //
  20   // If the |context3d| is destroyed or lost before the callback fires, then
  21   // AbortBecauseDidLoseOrDestroyContext() must be called to clean up the
  22   // callback's resources.
  23   static void SignalSyncPoint(
  24       WebKit::WebGraphicsContext3D* context3d,
  25       unsigned sync_point,
  26       const base::Closure& closure);
  27
  28  private:
  29   SyncPointHelper();
  30
  31   DISALLOW_COPY_AND_ASSIGN(SyncPointHelper);
  32 };
  33
  34 }  // namespace cc
  35
  36 #endif  // CC_RESOURCES_SYNC_POINT_HELPER_H_