57 lines
1.5 KiB
C#
57 lines
1.5 KiB
C#
/*
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* Copyright 2023 Eduard Kargin <kargin.eduard@gmail.com>
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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using Ragon.Protocol;
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namespace Ragon.Client.Compressor;
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public class FloatCompressor
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{
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public float Min { get; private set; }
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public float Max { get; private set; }
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public float Precision { get; private set; }
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public int RequiredBits { get; private set; }
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private uint _mask;
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public FloatCompressor(float min = -1024.0f, float max = 1024.0f, float precision = 0.01f)
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{
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Min = min;
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Max = max;
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Precision = precision;
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RequiredBits = DeBruijn.Log2((uint)((Max - Min) * (1f / Precision) + 0.5f)) + 1;
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_mask = (uint)((1L << RequiredBits) - 1);
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}
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public uint Compress(float value)
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{
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return (uint)((value - Min) * 1f / Precision + 0.5f) & _mask;
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}
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public float Decompress(uint value)
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{
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var result = value * Precision + Min;
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if (result < Min)
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result = Min;
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else if (result > Max)
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result = Max;
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return result;
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}
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} |