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1
7
8 package com.sun.imageio.plugins.bmp;
9
10 import java.util.Locale  ;
11 import javax.imageio.spi.ImageReaderSpi ;
12 import javax.imageio.stream.ImageInputStream ;
13 import javax.imageio.spi.IIORegistry ;
14 import javax.imageio.spi.ServiceRegistry ;
15 import java.io.IOException ;
16 import javax.imageio.ImageReader ;
17 import javax.imageio.IIOException ;
18
19 public class BMPImageReaderSpi extends ImageReaderSpi {
20
21 private static String [] writerSpiNames =
22 {"com.sun.imageio.plugins.bmp.BMPImageWriterSpi"};
23 private static String [] formatNames = {"bmp", "BMP"};
24 private static String [] entensions = {"bmp"};
25 private static String [] mimeType = {"image/bmp"};
26
27 private boolean registered = false;
28
29 public BMPImageReaderSpi() {
30 super("Sun Microsystems, Inc.",
31 "1.0",
32 formatNames,
33 entensions,
34 mimeType,
35 "com.sun.imageio.plugins.bmp.BMPImageReader",
36 STANDARD_INPUT_TYPE,
37 writerSpiNames,
38 false,
39 null, null, null, null,
40 true,
41 BMPMetadata.nativeMetadataFormatName,
42 "com.sun.imageio.plugins.bmp.BMPMetadataFormat",
43 null, null);
44 }
45
46 public void onRegistration(ServiceRegistry registry,
47 Class <?> category) {
48 if (registered) {
49 return;
50 }
51 registered = true;
52 }
53
54 public String getDescription(Locale locale) {
55 return "Standard BMP Image Reader";
56 }
57
58 public boolean canDecodeInput(Object source) throws IOException {
59 if (!(source instanceof ImageInputStream )) {
60 return false;
61 }
62
63 ImageInputStream stream = (ImageInputStream )source;
64 byte[] b = new byte[2];
65 stream.mark();
66 stream.readFully(b);
67 stream.reset();
68
69 return (b[0] == 0x42) && (b[1] == 0x4d);
70 }
71
72 public ImageReader createReaderInstance(Object extension)
73 throws IIOException {
74 return new BMPImageReader(this);
75 }
76 }
77
78 |
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