1 // Copyright 2018 The Dawn Authors 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 DAWNNATIVE_STAGINGBUFFER_H_ 16 #define DAWNNATIVE_STAGINGBUFFER_H_ 17 18 #include "dawn_native/Error.h" 19 20 namespace dawn_native { 21 22 class StagingBufferBase { 23 public: 24 StagingBufferBase(size_t size); 25 virtual ~StagingBufferBase() = default; 26 27 virtual MaybeError Initialize() = 0; 28 29 void* GetMappedPointer() const; 30 size_t GetSize() const; 31 32 protected: 33 void* mMappedPointer = nullptr; 34 35 private: 36 const size_t mBufferSize; 37 }; 38 39 } // namespace dawn_native 40 41 #endif // DAWNNATIVE_STAGINGBUFFER_H_ 42