| // Copyright 2019 The SwiftShader Authors. All Rights Reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #ifndef VK_SEMAPHORE_EXTERNAL_NONE_H_ |
| #define VK_SEMAPHORE_EXTERNAL_NONE_H_ |
| |
| namespace vk { |
| |
| // Empty external sempahore implementation. |
| class Semaphore::External |
| { |
| public: |
| // The type of external semaphore handle types supported by this implementation. |
| static const VkExternalSemaphoreHandleTypeFlags kExternalSemaphoreHandleType = 0; |
| |
| void init() {} |
| |
| void wait() {} |
| |
| bool tryWait() { return true; } |
| |
| void signal() {} |
| |
| private: |
| int dummy; |
| }; |
| |
| } // namespace vk |
| |
| #endif // VK_SEMAPHORE_EXTERNAL_NONE_H_ |
