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extern/draco/dracoenc/src/draco/core/bit_utils.cc
- This file was added.
| // Copyright 2017 The Draco 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 "draco/core/bit_utils.h" | |||||
| namespace draco { | |||||
| void ConvertSignedIntsToSymbols(const int32_t *in, int in_values, | |||||
| uint32_t *out) { | |||||
| // Convert the quantized values into a format more suitable for entropy | |||||
| // encoding. | |||||
| // Put the sign bit into LSB pos and shift the rest one bit left. | |||||
| for (int i = 0; i < in_values; ++i) { | |||||
| out[i] = ConvertSignedIntToSymbol(in[i]); | |||||
| } | |||||
| } | |||||
| void ConvertSymbolsToSignedInts(const uint32_t *in, int in_values, | |||||
| int32_t *out) { | |||||
| for (int i = 0; i < in_values; ++i) { | |||||
| out[i] = ConvertSymbolToSignedInt(in[i]); | |||||
| } | |||||
| } | |||||
| } // namespace draco | |||||