| // Copyright 2020 The Dawn & Tint Authors | |
| // | |
| // Redistribution and use in source and binary forms, with or without | |
| // modification, are permitted provided that the following conditions are met: | |
| // | |
| // 1. Redistributions of source code must retain the above copyright notice, this | |
| // list of conditions and the following disclaimer. | |
| // | |
| // 2. Redistributions in binary form must reproduce the above copyright notice, | |
| // this list of conditions and the following disclaimer in the documentation | |
| // and/or other materials provided with the distribution. | |
| // | |
| // 3. Neither the name of the copyright holder nor the names of its | |
| // contributors may be used to endorse or promote products derived from | |
| // this software without specific prior written permission. | |
| // | |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | |
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| #ifndef SRC_DAWN_NATIVE_ENUMCLASSBITMASKS_H_ | |
| #define SRC_DAWN_NATIVE_ENUMCLASSBITMASKS_H_ | |
| #include <bit> | |
| #include "webgpu/webgpu_enum_class_bitmasks.h" | |
| namespace dawn::native { | |
| // The operators of webgpu_enum_class_bitmasks.h are in the wgpu:: namespace, | |
| // and need to be imported into this namespace for Argument Dependent Lookup. | |
| WGPU_IMPORT_BITMASK_OPERATORS | |
| // Specify this for usage with EnumMaskIterator | |
| template <typename T> | |
| struct EnumBitmaskSize { | |
| static constexpr unsigned value = 0; | |
| }; | |
| template <typename T> | |
| constexpr bool HasOneBit(T value) { | |
| using Integral = typename std::underlying_type<T>::type; | |
| return std::has_single_bit(static_cast<Integral>(value)); | |
| } | |
| } // namespace dawn::native | |
| #endif // SRC_DAWN_NATIVE_ENUMCLASSBITMASKS_H_ |