1 | /*****************************************************************************/ |
2 | // Copyright 2006-2011 Adobe Systems Incorporated |
3 | // All Rights Reserved. |
4 | // |
5 | // NOTICE: Adobe permits you to use, modify, and distribute this file in |
6 | // accordance with the terms of the Adobe license agreement accompanying it. |
7 | /*****************************************************************************/ |
8 | |
9 | /* $Id: //mondo/dng_sdk_1_4/dng_sdk/source/dng_info.h#1 $ */ |
10 | /* $DateTime: 2012/05/30 13:28:51 $ */ |
11 | /* $Change: 832332 $ */ |
12 | /* $Author: tknoll $ */ |
13 | |
14 | /** \file |
15 | * Class for holding top-level information about a DNG image. |
16 | */ |
17 | |
18 | /*****************************************************************************/ |
19 | |
20 | #ifndef __dng_info__ |
21 | #define __dng_info__ |
22 | |
23 | /*****************************************************************************/ |
24 | |
25 | #include "dng_classes.h" |
26 | #include "dng_ifd.h" |
27 | #include "dng_exif.h" |
28 | #include "dng_shared.h" |
29 | #include "dng_errors.h" |
30 | #include "dng_sdk_limits.h" |
31 | #include "dng_auto_ptr.h" |
32 | |
33 | /*****************************************************************************/ |
34 | |
35 | /// \brief Top-level structure of DNG file with access to metadata. |
36 | /// |
37 | /// See \ref spec_dng "DNG 1.1.0 specification" for information on member fields of this class. |
38 | |
39 | class dng_info |
40 | { |
41 | |
42 | public: |
43 | |
44 | uint64 fTIFFBlockOffset; |
45 | |
46 | uint64 fTIFFBlockOriginalOffset; |
47 | |
48 | bool fBigEndian; |
49 | |
50 | uint32 fMagic; |
51 | |
52 | AutoPtr<dng_exif> fExif; |
53 | |
54 | AutoPtr<dng_shared> fShared; |
55 | |
56 | int32 fMainIndex; |
57 | |
58 | int32 fMaskIndex; |
59 | |
60 | uint32 fIFDCount; |
61 | |
62 | AutoPtr<dng_ifd> fIFD [kMaxSubIFDs + 1]; |
63 | |
64 | uint32 fChainedIFDCount; |
65 | |
66 | AutoPtr<dng_ifd> fChainedIFD [kMaxChainedIFDs]; |
67 | |
68 | protected: |
69 | |
70 | uint32 fMakerNoteNextIFD; |
71 | |
72 | public: |
73 | |
74 | dng_info (); |
75 | |
76 | virtual ~dng_info (); |
77 | |
78 | /// Read dng_info from a dng_stream |
79 | /// \param host DNG host used for progress updating, abort testing, buffer allocation, etc. |
80 | /// \param stream Stream to read DNG data from. |
81 | |
82 | virtual void Parse (dng_host &host, |
83 | dng_stream &stream); |
84 | |
85 | /// Must be called immediately after a successful Parse operation. |
86 | |
87 | virtual void PostParse (dng_host &host); |
88 | |
89 | /// Test validity of DNG data. |
90 | /// \retval true if stream provided a valid DNG. |
91 | |
92 | virtual bool IsValidDNG (); |
93 | |
94 | protected: |
95 | |
96 | virtual void ValidateMagic (); |
97 | |
98 | virtual void ParseTag (dng_host &host, |
99 | dng_stream &stream, |
100 | dng_exif *exif, |
101 | dng_shared *shared, |
102 | dng_ifd *ifd, |
103 | uint32 parentCode, |
104 | uint32 tagCode, |
105 | uint32 tagType, |
106 | uint32 tagCount, |
107 | uint64 tagOffset, |
108 | int64 offsetDelta); |
109 | |
110 | virtual bool ValidateIFD (dng_stream &stream, |
111 | uint64 ifdOffset, |
112 | int64 offsetDelta); |
113 | |
114 | virtual void ParseIFD (dng_host &host, |
115 | dng_stream &stream, |
116 | dng_exif *exif, |
117 | dng_shared *shared, |
118 | dng_ifd *ifd, |
119 | uint64 ifdOffset, |
120 | int64 offsetDelta, |
121 | uint32 parentCode); |
122 | |
123 | virtual bool ParseMakerNoteIFD (dng_host &host, |
124 | dng_stream &stream, |
125 | uint64 ifdSize, |
126 | uint64 ifdOffset, |
127 | int64 offsetDelta, |
128 | uint64 minOffset, |
129 | uint64 maxOffset, |
130 | uint32 parentCode); |
131 | |
132 | virtual void ParseMakerNote (dng_host &host, |
133 | dng_stream &stream, |
134 | uint32 makerNoteCount, |
135 | uint64 makerNoteOffset, |
136 | int64 offsetDelta, |
137 | uint64 minOffset, |
138 | uint64 maxOffset); |
139 | |
140 | virtual void ParseSonyPrivateData (dng_host &host, |
141 | dng_stream &stream, |
142 | uint64 count, |
143 | uint64 oldOffset, |
144 | uint64 newOffset); |
145 | |
146 | virtual void ParseDNGPrivateData (dng_host &host, |
147 | dng_stream &stream); |
148 | |
149 | private: |
150 | |
151 | // Hidden copy constructor and assignment operator. |
152 | |
153 | dng_info (const dng_info &info); |
154 | |
155 | dng_info & operator= (const dng_info &info); |
156 | |
157 | }; |
158 | |
159 | /*****************************************************************************/ |
160 | |
161 | #endif |
162 | |
163 | /*****************************************************************************/ |
164 | |