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1 /*
2  * Copyright 2016 Google Inc.
3  *
4  * Use of this source code is governed by a BSD-style license that can be
5  * found in the LICENSE file.
6  */
7 
8 #ifndef FenceSync_DEFINED
9 #define FenceSync_DEFINED
10 
11 #include "SkTypes.h"
12 
13 namespace sk_gpu_test {
14 
15 using PlatformFence = uint64_t;
16 static constexpr PlatformFence kInvalidFence = 0;
17 
18 /*
19  * This class provides an interface to interact with fence syncs. A fence sync is an object that the
20  * client can insert into the GPU command stream, and then at any future time, wait until all
21  * commands that were issued before the fence have completed.
22  */
23 class FenceSync {
24 public:
25     virtual PlatformFence SK_WARN_UNUSED_RESULT insertFence() const = 0;
26     virtual bool waitFence(PlatformFence) const = 0;
27     virtual void deleteFence(PlatformFence) const = 0;
28 
validate()29     virtual bool validate() const { return true; }
30 
~FenceSync()31     virtual ~FenceSync() {}
32 };
33 
34 }  // namespace sk_gpu_test
35 
36 #endif
37