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ImfImageChannelRenaming.h
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34 
35 #ifndef INCLUDED_IMF_IMAGE_CHANNEL_RENAMING_H
36 #define INCLUDED_IMF_IMAGE_CHANNEL_RENAMING_H
37 
38 //----------------------------------------------------------------------------
39 //
40 // typedef RenamingMap,
41 // helper functions for image channel renaming.
42 //
43 //----------------------------------------------------------------------------
44 
45 #include <ImfNamespace.h>
46 #include <string>
47 #include <map>
48 
50 
51 
52 //
53 // Given a map from old channel names to new channel names,
54 // rename the channels in an image or image level.
55 // This function assumes that the channel old-to-new-names
56 // map has already been checked for collisions.
57 //
58 
59 typedef std::map <std::string, std::string> RenamingMap;
60 
61 template <class ChannelMap>
62 void
63 renameChannelsInMap (const RenamingMap oldToNewNames, ChannelMap &channels);
64 
65 
66 //-----------------------------------------------------------------------------
67 // Implementation
68 //-----------------------------------------------------------------------------
69 
70 template <class ChannelMap>
71 void
72 renameChannelsInMap (const RenamingMap oldToNewNames, ChannelMap &channels)
73 {
74  ChannelMap renamedChannels;
75 
76  for (typename ChannelMap::const_iterator i = channels.begin();
77  i != channels.end();
78  ++i)
79  {
80  RenamingMap::const_iterator j = oldToNewNames.find (i->first);
81  std::string newName = (j == oldToNewNames.end())? i->first: j->second;
82  renamedChannels[newName] = i->second;
83  }
84 
85  channels = renamedChannels;
86 }
87 
88 
89 
91 
92 #endif
void renameChannelsInMap(const RenamingMap oldToNewNames, ChannelMap &channels)
#define OPENEXR_IMF_INTERNAL_NAMESPACE_HEADER_EXIT
Definition: ImfNamespace.h:109
GLsizei const GLchar *const * string
Definition: glcorearb.h:813
png_uint_32 i
Definition: png.h:2877
OPENEXR_IMF_INTERNAL_NAMESPACE_HEADER_ENTER typedef std::map< std::string, std::string > RenamingMap
#define OPENEXR_IMF_INTERNAL_NAMESPACE_HEADER_ENTER
Definition: ImfNamespace.h:108