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// 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.
//
#ifndef DRACO_COMPRESSION_ATTRIBUTES_SEQUENTIAL_QUANTIZATION_ATTRIBUTE_DECODER_H_
#define DRACO_COMPRESSION_ATTRIBUTES_SEQUENTIAL_QUANTIZATION_ATTRIBUTE_DECODER_H_
#include "draco/compression/attributes/sequential_integer_attribute_decoder.h"
#include "draco/draco_features.h"
namespace draco {
// Decoder for attribute values encoded with the
// SequentialQuantizationAttributeEncoder.
class SequentialQuantizationAttributeDecoder
: public SequentialIntegerAttributeDecoder {
public:
SequentialQuantizationAttributeDecoder();
bool Init(PointCloudDecoder *decoder, int attribute_id) override;
protected:
bool DecodeIntegerValues(const std::vector<PointIndex> &point_ids,
DecoderBuffer *in_buffer) override;
bool DecodeDataNeededByPortableTransform(
const std::vector<PointIndex> &point_ids,
DecoderBuffer *in_buffer) override;
bool StoreValues(uint32_t num_points) override;
// Decodes data necessary for dequantizing the encoded values.
virtual bool DecodeQuantizedDataInfo();
// Dequantizes all values and stores them into the output attribute.
virtual bool DequantizeValues(uint32_t num_values);
private:
// Max number of quantization bits used to encode each component of the
// attribute.
int32_t quantization_bits_;
std::unique_ptr<float[]> min_value_;
float max_value_dif_;
};
} // namespace draco
#endif // DRACO_COMPRESSION_ATTRIBUTES_SEQUENTIAL_QUANTIZATION_ATTRIBUTE_DECODER_H_
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