1 /* BMPImageReaderSpi.java -- 2 Copyright (C) 2005 Free Software Foundation, Inc. 3 4 This file is part of GNU Classpath. 5 6 GNU Classpath is free software; you can redistribute it and/or modify 7 it under the terms of the GNU General Public License as published by 8 the Free Software Foundation; either version 2, or (at your option) 9 any later version. 10 11 GNU Classpath is distributed in the hope that it will be useful, but 12 WITHOUT ANY WARRANTY; without even the implied warranty of 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 General Public License for more details. 15 16 You should have received a copy of the GNU General Public License 17 along with GNU Classpath; see the file COPYING. If not, write to the 18 Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 19 02110-1301 USA. 20 21 Linking this library statically or dynamically with other modules is 22 making a combined work based on this library. Thus, the terms and 23 conditions of the GNU General Public License cover the whole 24 combination. 25 26 As a special exception, the copyright holders of this library give you 27 permission to link this library with independent modules to produce an 28 executable, regardless of the license terms of these independent 29 modules, and to copy and distribute the resulting executable under 30 terms of your choice, provided that you also meet, for each linked 31 independent module, the terms and conditions of the license of that 32 module. An independent module is a module which is not derived from 33 or based on this library. If you modify this library, you may extend 34 this exception to your version of the library, but you are not 35 obligated to do so. If you do not wish to do so, delete this 36 exception statement from your version. */ 37 38 package gnu.javax.imageio.bmp; 39 40 import java.io.IOException; 41 import java.util.Locale; 42 import javax.imageio.ImageReader; 43 import javax.imageio.spi.ImageReaderSpi; 44 import javax.imageio.stream.ImageInputStream; 45 46 public class BMPImageReaderSpi extends ImageReaderSpi { 47 48 static final String vendorName = "GNU"; 49 static final String version = "0.1"; 50 static final String readerClassName = 51 "gnu.javax.imageio.bmp.BMPImageReader"; 52 static final String[] names = { "Microsoft Windows BMP" }; 53 static final String[] suffixes = { ".bmp", ".bm" }; 54 static final String[] MIMETypes = { 55 "image/bmp", 56 "image/x-windows-bmp"}; 57 static final String[] writerSpiNames = 58 { "gnu.javax.imageio.bmp.BMPImageWriterSpi" }; 59 60 static final boolean supportsStandardStreamMetadataFormat = false; 61 static final String nativeStreamMetadataFormatName = null; 62 static final String nativeStreamMetadataFormatClassName = null; 63 static final String[] extraStreamMetadataFormatNames = null; 64 static final String[] extraStreamMetadataFormatClassNames = null; 65 static final boolean supportsStandardImageMetadataFormat = false; 66 static final String nativeImageMetadataFormatName = null; 67 static final String nativeImageMetadataFormatClassName = null; 68 static final String[] extraImageMetadataFormatNames = null; 69 static final String[] extraImageMetadataFormatClassNames = null; 70 BMPImageReaderSpi()71 public BMPImageReaderSpi() { 72 super(vendorName, version, 73 names, suffixes, MIMETypes, 74 readerClassName, 75 STANDARD_INPUT_TYPE, // Accept ImageInputStreams 76 writerSpiNames, 77 supportsStandardStreamMetadataFormat, 78 nativeStreamMetadataFormatName, 79 nativeStreamMetadataFormatClassName, 80 extraStreamMetadataFormatNames, 81 extraStreamMetadataFormatClassNames, 82 supportsStandardImageMetadataFormat, 83 nativeImageMetadataFormatName, 84 nativeImageMetadataFormatClassName, 85 extraImageMetadataFormatNames, 86 extraImageMetadataFormatClassNames); 87 } 88 getDescription(Locale locale)89 public String getDescription(Locale locale) { 90 return "Microsoft BMP v3"; 91 } 92 canDecodeInput(Object input)93 public boolean canDecodeInput(Object input) 94 throws IOException { 95 if (!(input instanceof ImageInputStream)) 96 return false; 97 98 ImageInputStream in = (ImageInputStream)input; 99 boolean retval; 100 101 in.mark(); 102 try { 103 new BMPFileHeader(in); 104 retval = true; 105 } catch(BMPException e){ 106 retval = false; 107 } 108 in.reset(); 109 110 return retval; 111 } 112 createReaderInstance(Object extension)113 public ImageReader createReaderInstance(Object extension) { 114 return new BMPImageReader(this); 115 } 116 } 117