blob: d056e6cf784ca22112072a2193cca135c6632f13 [file] [log] [blame]
David 'Digit' Turner7c4d0a02019-09-03 17:00:02 +02001// Copyright 2019 The SwiftShader Authors. All Rights Reserved.
2//
3// Licensed under the Apache License, Version 2.0 (the "License");
4// you may not use this file except in compliance with the License.
5// You may obtain a copy of the License at
6//
7// http://www.apache.org/licenses/LICENSE-2.0
8//
9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS,
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14
15#ifndef VK_SEMAPHORE_EXTERNAL_NONE_H_
16#define VK_SEMAPHORE_EXTERNAL_NONE_H_
17
18namespace vk
19{
20
21// Empty external sempahore implementation.
22class Semaphore::External {
23public:
24 // The type of external semaphore handle types supported by this implementation.
25 static const VkExternalSemaphoreHandleTypeFlags kExternalSemaphoreHandleType = 0;
26
27 void init() {}
28
29 void wait() {}
30
31 bool tryWait() { return true; }
32
33 void signal() {}
34
35private:
36 int dummy;
37};
38
39} // namespace vk
40
41#endif // VK_SEMAPHORE_EXTERNAL_NONE_H_