make a deep copy of a BufferedImage, fastest - Java 2D Graphics

Java examples for 2D Graphics:BufferedImage Create

  1. HOME
  2. Java
  3. 2D Graphics
  4. BufferedImage Create

Description

make a deep copy of a BufferedImage, fastest

Demo Code

/*/*w  w w . j a va 2 s.  c  o  m*/
 * Copyright Yi Xiao. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification, are
 * permitted provided that the following conditions are met:
 *
 * - Redistributions of source code must retain the above copyright notice, this list
 *   of conditions and the following disclaimer.
 *
 * - Redistributions in binary form must reproduce the above copyright notice, this
 *   list of conditions and the following disclaimer listed in this license in the
 *   documentation and/or other materials provided with the distribution.
 *
 * - Neither the name of the copyright holders nor the names of its contributors may
 *   be used to endorse or promote products derived from this software without specific
 *   prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
 * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
 * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
//package com.java2s;

import java.awt.image.BufferedImage;

import java.awt.image.DataBufferInt;

public class Main {
    /**
     * make a deep copy of a BufferedImage, fastest
     */
    public static BufferedImage copyBufferedImage(BufferedImage src) {
        int width = src.getWidth();
        int height = src.getHeight();
        BufferedImage copy = new BufferedImage(width, height,
                BufferedImage.TYPE_INT_RGB);
        int[] srcbuf = ((DataBufferInt) src.getRaster().getDataBuffer())
                .getData();
        int[] dstbuf = ((DataBufferInt) copy.getRaster().getDataBuffer())
                .getData();

        for (int y = 0, srcoffs = 0, dstoffs = 0; y < height; y++, dstoffs += width, srcoffs += width) {
            System.arraycopy(srcbuf, srcoffs, dstbuf, dstoffs, width);
        }
        return copy;
    }
}

Related Tutorials