| 1 | /*
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| 2 | * Copyright 2002-2016 Drew Noakes
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| 3 | *
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| 4 | * Licensed under the Apache License, Version 2.0 (the "License");
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| 5 | * you may not use this file except in compliance with the License.
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| 6 | * You may obtain a copy of the License at
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| 7 | *
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| 8 | * http://www.apache.org/licenses/LICENSE-2.0
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| 9 | *
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| 10 | * Unless required by applicable law or agreed to in writing, software
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| 11 | * distributed under the License is distributed on an "AS IS" BASIS,
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| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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| 13 | * See the License for the specific language governing permissions and
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| 14 | * limitations under the License.
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| 15 | *
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| 16 | * More information about this project is available at:
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| 17 | *
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| 18 | * https://drewnoakes.com/code/exif/
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| 19 | * https://github.com/drewnoakes/metadata-extractor
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| 20 | */
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| 21 | package com.drew.imaging.tiff;
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| 22 |
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| 23 | import com.drew.lang.annotations.NotNull;
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| 24 | import com.drew.lang.annotations.Nullable;
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| 25 |
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| 26 | /**
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| 27 | * An enumeration of data formats used by the TIFF specification.
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| 28 | *
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| 29 | * @author Drew Noakes https://drewnoakes.com
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| 30 | */
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| 31 | public class TiffDataFormat
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| 32 | {
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| 33 | public static final int CODE_INT8_U = 1;
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| 34 | public static final int CODE_STRING = 2;
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| 35 | public static final int CODE_INT16_U = 3;
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| 36 | public static final int CODE_INT32_U = 4;
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| 37 | public static final int CODE_RATIONAL_U = 5;
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| 38 | public static final int CODE_INT8_S = 6;
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| 39 | public static final int CODE_UNDEFINED = 7;
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| 40 | public static final int CODE_INT16_S = 8;
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| 41 | public static final int CODE_INT32_S = 9;
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| 42 | public static final int CODE_RATIONAL_S = 10;
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| 43 | public static final int CODE_SINGLE = 11;
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| 44 | public static final int CODE_DOUBLE = 12;
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| 45 |
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| 46 | @NotNull public static final TiffDataFormat INT8_U = new TiffDataFormat("BYTE", CODE_INT8_U, 1);
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| 47 | @NotNull public static final TiffDataFormat STRING = new TiffDataFormat("STRING", CODE_STRING, 1);
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| 48 | @NotNull public static final TiffDataFormat INT16_U = new TiffDataFormat("USHORT", CODE_INT16_U, 2);
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| 49 | @NotNull public static final TiffDataFormat INT32_U = new TiffDataFormat("ULONG", CODE_INT32_U, 4);
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| 50 | @NotNull public static final TiffDataFormat RATIONAL_U = new TiffDataFormat("URATIONAL", CODE_RATIONAL_U, 8);
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| 51 | @NotNull public static final TiffDataFormat INT8_S = new TiffDataFormat("SBYTE", CODE_INT8_S, 1);
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| 52 | @NotNull public static final TiffDataFormat UNDEFINED = new TiffDataFormat("UNDEFINED", CODE_UNDEFINED, 1);
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| 53 | @NotNull public static final TiffDataFormat INT16_S = new TiffDataFormat("SSHORT", CODE_INT16_S, 2);
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| 54 | @NotNull public static final TiffDataFormat INT32_S = new TiffDataFormat("SLONG", CODE_INT32_S, 4);
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| 55 | @NotNull public static final TiffDataFormat RATIONAL_S = new TiffDataFormat("SRATIONAL", CODE_RATIONAL_S, 8);
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| 56 | @NotNull public static final TiffDataFormat SINGLE = new TiffDataFormat("SINGLE", CODE_SINGLE, 4);
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| 57 | @NotNull public static final TiffDataFormat DOUBLE = new TiffDataFormat("DOUBLE", CODE_DOUBLE, 8);
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| 58 |
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| 59 | @NotNull
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| 60 | private final String _name;
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| 61 | private final int _tiffFormatCode;
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| 62 | private final int _componentSizeBytes;
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| 63 |
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| 64 | @Nullable
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| 65 | public static TiffDataFormat fromTiffFormatCode(int tiffFormatCode)
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| 66 | {
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| 67 | switch (tiffFormatCode) {
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| 68 | case 1: return INT8_U;
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| 69 | case 2: return STRING;
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| 70 | case 3: return INT16_U;
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| 71 | case 4: return INT32_U;
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| 72 | case 5: return RATIONAL_U;
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| 73 | case 6: return INT8_S;
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| 74 | case 7: return UNDEFINED;
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| 75 | case 8: return INT16_S;
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| 76 | case 9: return INT32_S;
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| 77 | case 10: return RATIONAL_S;
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| 78 | case 11: return SINGLE;
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| 79 | case 12: return DOUBLE;
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| 80 | }
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| 81 | return null;
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| 82 | }
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| 83 |
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| 84 | private TiffDataFormat(@NotNull String name, int tiffFormatCode, int componentSizeBytes)
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| 85 | {
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| 86 | _name = name;
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| 87 | _tiffFormatCode = tiffFormatCode;
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| 88 | _componentSizeBytes = componentSizeBytes;
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| 89 | }
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| 90 |
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| 91 | public int getComponentSizeBytes()
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| 92 | {
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| 93 | return _componentSizeBytes;
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| 94 | }
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| 95 |
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| 96 | public int getTiffFormatCode()
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| 97 | {
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| 98 | return _tiffFormatCode;
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| 99 | }
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| 100 |
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| 101 | @Override
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| 102 | @NotNull
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| 103 | public String toString()
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| 104 | {
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| 105 | return _name;
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| 106 | }
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| 107 | }
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