37e9e9935c
Prefer not to have edgy references to child sexual assault in our tools. Consider that victims of such violence may well grow up to become ROM hackers just as often as the rest of us. Let's not be rude to them!
150 lines
No EOL
3 KiB
Java
150 lines
No EOL
3 KiB
Java
/*
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*
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* Copyright (C) 2003 Kent Hansen.
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*
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* This file is part of Tile Mangler.
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*
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* Tile Mangler is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* Tile Mangler is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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package tm.tilecodecs;
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/**
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*
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* Abstract class for 8x8 ("atomic") tile codecs.
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* To add a new tile format, simply extend this class and implement decode() and encode().
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*
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**/
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public abstract class TileCodec {
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public static final int MODE_1D=1;
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public static final int MODE_2D=2;
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private String id;
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private String description;
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protected int[] pixels; // destination for DEcoded tile data
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protected int bitsPerPixel;
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protected int bytesPerRow; // row = 8 pixels
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protected long colorCount;
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protected int tileSize; // size of one encoded tile
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/**
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*
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* Constructor. Every subclass must call this with argument bitsPerPixel.
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*
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* @param bitsPerPixel Duh!
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*
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**/
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public TileCodec(String id, int bitsPerPixel, String description) {
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this.id = id;
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this.bitsPerPixel = bitsPerPixel;
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this.description = description;
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bytesPerRow = bitsPerPixel; // because (bitsPerPixel*8)/8 = bitsPerPixel
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tileSize = bytesPerRow*8;
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colorCount = 1 << bitsPerPixel;
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pixels = new int[8*8];
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}
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/**
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*
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* Decodes a tile.
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*
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* @param bits An array of encoded tile data
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* @param ofs Start offset of tile in bits array
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*
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**/
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public abstract int[] decode(byte[] bits, int ofs, int stride);
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/**
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*
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* Encodes a tile.
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*
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* @param pixels An array of decoded tile data
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*
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**/
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public abstract void encode(int[] pixels, byte[] bits, int ofs, int stride);
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/**
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*
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* Gets the # of bits per pixel for the tile format.
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*
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**/
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public int getBitsPerPixel() {
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return bitsPerPixel;
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}
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/**
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*
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* Gets the # of bytes per row (8 pixels) for the tile format.
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*
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**/
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public int getBytesPerRow() {
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return bytesPerRow;
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}
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/**
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*
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*
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*
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**/
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/*
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public long getColorCount() {
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return colorCount;
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}
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*/
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// TEMP!!!!!!!!!!
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public int getColorCount() {
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if (bitsPerPixel < 8) return (1 << bitsPerPixel);
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return 256;
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}
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/**
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*
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* Gets the size in bytes of one tile encoded in this format.
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*
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**/
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public int getTileSize() {
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return tileSize;
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}
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/**
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*
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* Gets the description of the codec.
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*
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**/
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public String getDescription() {
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return description;
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}
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/**
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*
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* Gets the codec id.
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*
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**/
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public String getID() {
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return id;
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}
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public String toString() {
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return description;
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}
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} |