1 // Copyright 2020 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_ENUMCLASSBITMASK_H_ 16 #define DAWNNATIVE_ENUMCLASSBITMASK_H_ 17 18 #include "dawn/EnumClassBitmasks.h" 19 20 namespace dawn_native { 21 22 // EnumClassBitmmasks is a helper in the dawn:: namespace. 23 // Re-export it in the dawn_native namespace. 24 DAWN_IMPORT_BITMASK_OPERATORS 25 26 // Specify this for usage with EnumMaskIterator 27 template <typename T> 28 struct EnumBitmaskSize { 29 static constexpr unsigned value = 0; 30 }; 31 32 template <typename T> HasOneBit(T value)33 constexpr bool HasOneBit(T value) { 34 return HasZeroOrOneBits(value) && value != T(0); 35 } 36 37 } // namespace dawn_native 38 39 #endif // DAWNNATIVE_ENUMCLASSBITMASK_H_ 40