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extern/draco/dracoenc/src/draco/core/quantization_utils.cc
- This file was added.
| // Copyright 2016 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/quantization_utils.h" | |||||
| namespace draco { | |||||
| Quantizer::Quantizer() : inverse_delta_(1.f) {} | |||||
| void Quantizer::Init(float range, int32_t max_quantized_value) { | |||||
| inverse_delta_ = static_cast<float>(max_quantized_value) / range; | |||||
| } | |||||
| void Quantizer::Init(float delta) { inverse_delta_ = 1.f / delta; } | |||||
| Dequantizer::Dequantizer() : delta_(1.f) {} | |||||
| bool Dequantizer::Init(float range, int32_t max_quantized_value) { | |||||
| if (max_quantized_value <= 0) | |||||
| return false; | |||||
| delta_ = range / static_cast<float>(max_quantized_value); | |||||
| return true; | |||||
| } | |||||
| bool Dequantizer::Init(float delta) { | |||||
| delta_ = delta; | |||||
| return true; | |||||
| } | |||||
| } // namespace draco | |||||