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_OBJECTBASE_H_ 16 #define DAWNNATIVE_OBJECTBASE_H_ 17 18 #include "dawn_native/RefCounted.h" 19 20 namespace dawn_native { 21 22 class DeviceBase; 23 24 class ObjectBase : public RefCounted { 25 public: 26 struct ErrorTag {}; 27 static constexpr ErrorTag kError = {}; 28 29 ObjectBase(DeviceBase* device); 30 ObjectBase(DeviceBase* device, ErrorTag tag); 31 virtual ~ObjectBase(); 32 33 DeviceBase* GetDevice() const; 34 bool IsError() const; 35 36 private: 37 DeviceBase* mDevice; 38 // TODO(cwallez@chromium.org): This most likely adds 4 bytes to most Dawn objects, see if 39 // that bit can be hidden in the refcount once it is a single 64bit refcount. 40 // See https://bugs.chromium.org/p/dawn/issues/detail?id=105 41 bool mIsError; 42 }; 43 44 } // namespace dawn_native 45 46 #endif // DAWNNATIVE_OBJECTBASE_H_ 47