forked from UnlegitDqrk/unlegitlibrary
76 lines
2.4 KiB
Java
76 lines
2.4 KiB
Java
/*
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* Copyright (C) 2025 UnlegitDqrk - All Rights Reserved
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*
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* You are unauthorized to remove this copyright.
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* You have to give Credits to the Author in your project and link this GitHub site: https://github.com/UnlegitDqrk
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* See LICENSE-File if exists
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*/
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/*
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* Copyright (C) 2024 UnlegitDqrk - All Rights Reserved
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*
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* You are unauthorized to remove this copyright.
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* You have to give Credits to the Author in your project and link this GitHub site: https://github.com/UnlegitDqrk
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* See LICENSE-File if exists
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*/
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package dev.unlegitdqrk.unlegitlibrary.number.bit;
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public enum BitArrayVersion {
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V16(16, 2, null),
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V8(8, 4, V16),
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V6(6, 5, V8), // 2 bit padding
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V5(5, 6, V6), // 2 bit padding
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V4(4, 8, V5),
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V3(3, 10, V4), // 2 bit padding
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V2(2, 16, V3),
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V1(1, 32, V2);
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public final byte bits; //TODO: probably make this private again just because
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public final byte entriesPerWord; //TODO: probably make this private again just because
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public final int maxEntryValue; //TODO: probably make this private again just because
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private final BitArrayVersion next;
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BitArrayVersion(int bits, int entriesPerWord, BitArrayVersion next) {
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this.bits = (byte) bits;
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this.entriesPerWord = (byte) entriesPerWord;
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this.maxEntryValue = (1 << this.bits) - 1;
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this.next = next;
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}
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public static BitArrayVersion get(int version, boolean read) {
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for (BitArrayVersion ver : values())
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if ((!read && ver.entriesPerWord <= version) || (read && ver.bits == version)) return ver;
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return null;
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}
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public final BitArray createPalette(int size) {
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return this.createPalette(size, new int[this.getWordsForSize(size)]);
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}
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public final byte getId() {
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return bits;
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}
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public final int getWordsForSize(int size) {
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return (size / entriesPerWord) + (size % entriesPerWord == 0 ? 0 : 1);
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}
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public final int getMaxEntryValue() {
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return maxEntryValue;
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}
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public final BitArrayVersion next() {
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return next;
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}
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public final BitArray createPalette(int size, int[] words) {
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if (this == V3 || this == V5 || this == V6)
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// Padded palettes aren't able to use bitwise operations due to their padding.
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return new PaddedBitArray(this, size, words);
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else return new Pow2BitArray(this, size, words);
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}
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} |