| // Copyright 2020 The Tint Authors. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #include "src/tint/lang/spirv/writer/common/operand.h" |
| |
| namespace tint::spirv::writer { |
| |
| uint32_t OperandLength(const Operand& o) { |
| if (auto* str = std::get_if<std::string>(&o)) { |
| // SPIR-V always nul-terminates strings. The length is rounded up to a |
| // multiple of 4 bytes with 0 bytes padding the end. Accounting for the |
| // nul terminator is why '+ 4u' is used here instead of '+ 3u'. |
| return static_cast<uint32_t>((str->length() + 4u) >> 2); |
| } |
| return 1; |
| } |
| |
| } // namespace tint::spirv::writer |
