1 // Copyright 2019 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_TOGGLES_H_ 16 #define DAWNNATIVE_TOGGLES_H_ 17 18 #include <bitset> 19 20 #include "dawn_native/DawnNative.h" 21 22 namespace dawn_native { 23 24 enum class Toggle { 25 EmulateStoreAndMSAAResolve, 26 NonzeroClearResourcesOnCreationForTesting, 27 AlwaysResolveIntoZeroLevelAndLayer, 28 LazyClearResourceOnFirstUse, 29 30 EnumCount, 31 InvalidEnum = EnumCount, 32 }; 33 34 // A wrapper of the bitset to store if a toggle is enabled or not. This wrapper provides the 35 // convenience to convert the enums of enum class Toggle to the indices of a bitset. 36 struct TogglesSet { 37 std::bitset<static_cast<size_t>(Toggle::EnumCount)> toggleBitset; 38 SetToggleTogglesSet39 void SetToggle(Toggle toggle, bool enabled) { 40 ASSERT(toggle != Toggle::InvalidEnum); 41 const size_t toggleIndex = static_cast<size_t>(toggle); 42 toggleBitset.set(toggleIndex, enabled); 43 } 44 IsEnabledTogglesSet45 bool IsEnabled(Toggle toggle) const { 46 ASSERT(toggle != Toggle::InvalidEnum); 47 const size_t toggleIndex = static_cast<size_t>(toggle); 48 return toggleBitset.test(toggleIndex); 49 } 50 }; 51 52 } // namespace dawn_native 53 54 #endif // DAWNNATIVE_TOGGLES_H_ 55