0N/A/*
3261N/A * Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved.
0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
0N/A *
0N/A * This code is free software; you can redistribute it and/or modify it
0N/A * under the terms of the GNU General Public License version 2 only, as
2362N/A * published by the Free Software Foundation. Oracle designates this
0N/A * particular file as subject to the "Classpath" exception as provided
2362N/A * by Oracle in the LICENSE file that accompanied this code.
0N/A *
0N/A * This code is distributed in the hope that it will be useful, but WITHOUT
0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
0N/A * version 2 for more details (a copy is included in the LICENSE file that
0N/A * accompanied this code).
0N/A *
0N/A * You should have received a copy of the GNU General Public License version
0N/A * 2 along with this work; if not, write to the Free Software Foundation,
0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
0N/A *
2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
2362N/A * or visit www.oracle.com if you need additional information or have any
2362N/A * questions.
0N/A */
0N/A
0N/Apackage com.sun.imageio.plugins.gif;
0N/A
0N/Aimport java.io.IOException;
0N/Aimport java.util.Locale;
0N/Aimport java.util.Iterator;
0N/Aimport javax.imageio.ImageReader;
0N/Aimport javax.imageio.metadata.IIOMetadataFormat;
0N/Aimport javax.imageio.metadata.IIOMetadataFormatImpl;
0N/Aimport javax.imageio.spi.ImageReaderSpi;
0N/Aimport javax.imageio.stream.ImageInputStream;
0N/A
0N/Apublic class GIFImageReaderSpi extends ImageReaderSpi {
0N/A
2850N/A private static final String vendorName = "Oracle Corporation";
0N/A
0N/A private static final String version = "1.0";
0N/A
0N/A private static final String[] names = { "gif", "GIF" };
0N/A
0N/A private static final String[] suffixes = { "gif" };
0N/A
0N/A private static final String[] MIMETypes = { "image/gif" };
0N/A
0N/A private static final String readerClassName =
0N/A "com.sun.imageio.plugins.gif.GIFImageReader";
0N/A
0N/A private static final String[] writerSpiNames = {
0N/A "com.sun.imageio.plugins.gif.GIFImageWriterSpi"
0N/A };
0N/A
0N/A public GIFImageReaderSpi() {
0N/A super(vendorName,
0N/A version,
0N/A names,
0N/A suffixes,
0N/A MIMETypes,
0N/A readerClassName,
1500N/A new Class[] { ImageInputStream.class },
0N/A writerSpiNames,
0N/A true,
0N/A GIFStreamMetadata.nativeMetadataFormatName,
0N/A "com.sun.imageio.plugins.gif.GIFStreamMetadataFormat",
0N/A null, null,
0N/A true,
0N/A GIFImageMetadata.nativeMetadataFormatName,
0N/A "com.sun.imageio.plugins.gif.GIFImageMetadataFormat",
0N/A null, null
0N/A );
0N/A }
0N/A
0N/A public String getDescription(Locale locale) {
0N/A return "Standard GIF image reader";
0N/A }
0N/A
0N/A public boolean canDecodeInput(Object input) throws IOException {
0N/A if (!(input instanceof ImageInputStream)) {
0N/A return false;
0N/A }
0N/A
0N/A ImageInputStream stream = (ImageInputStream)input;
0N/A byte[] b = new byte[6];
0N/A stream.mark();
0N/A stream.readFully(b);
0N/A stream.reset();
0N/A
0N/A return b[0] == 'G' && b[1] == 'I' && b[2] == 'F' && b[3] == '8' &&
0N/A (b[4] == '7' || b[4] == '9') && b[5] == 'a';
0N/A }
0N/A
0N/A public ImageReader createReaderInstance(Object extension) {
0N/A return new GIFImageReader(this);
0N/A }
0N/A
0N/A}