CPGreyBmp.java

/*
	ChibiPaint
    Copyright (c) 2006-2008 Marc Schefer

    This file is part of ChibiPaint.

    ChibiPaint is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    ChibiPaint is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with ChibiPaint. If not, see <http://www.gnu.org/licenses/>.

 */

package com.chibipaint.engine;

public class CPGreyBmp extends CPBitmap {

	public byte[] data;

	// Allocates a new bitmap
	public CPGreyBmp(int width, int height) {
		super(width, height);
		data = new byte[width * height];
	}

	public CPGreyBmp(CPGreyBmp original) {
		super(original.width, original.height);
		data = new byte[width * height];

		System.arraycopy(original.data, 0, data, 0, width * height);
	}

	public void inverse() {
		for (int i = 0, size = width * height; i < size; i++)
			data[i] = (byte) (255 - data[i]);
	}

	public void mirrorHorizontally() {
		byte[] newData = new byte[width * height];

		for (int j = 0; j < height; j++)
			for (int i = 0; i < width; i++)
				newData[j * width + i] = data[j * width + width - i - 1];

		data = newData;
	}

	public void applyLUT(CPLookUpTable lut) {
		for (int i = 0, size = width * height; i < size; i++)
			data[i] = (byte) lut.table[data[i] & 0xff];
	}

}