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ImfDeepImageState.h
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34 
35 
36 #ifndef INCLUDED_IMF_DEEPIMAGESTATE_H
37 #define INCLUDED_IMF_DEEPIMAGESTATE_H
38 
39 //-----------------------------------------------------------------------------
40 //
41 // enum DeepImageState -- describes how orderly the pixel data
42 // in a deep image are
43 //
44 // The samples in a deep image pixel may be sorted according to
45 // depth, and the sample depths or depth ranges may or may not
46 // overlap each other. A pixel is
47 //
48 // - SORTED if for every i and j with i < j
49 //
50 // (Z[i] < Z[j]) || (Z[i] == Z[j] && ZBack[i] < ZBack[j]),
51 //
52 // - NON_OVERLAPPING if for every i and j with i != j
53 //
54 // (Z[i] < Z[j] && ZBack[i] <= Z[j]) ||
55 // (Z[j] < Z[i] && ZBack[j] <= Z[i]) ||
56 // (Z[i] == Z[j] && ZBack[i] <= Z[i] & ZBack[j] > Z[j]) ||
57 // (Z[i] == Z[j] && ZBack[j] <= Z[j] & ZBack[i] > Z[i]),
58 //
59 // - TIDY if it is SORTED and NON_OVERLAPPING,
60 //
61 // - MESSY if it is neither SORTED nor NON_OVERLAPPING.
62 //
63 // A deep image is
64 //
65 // - MESSY if at least one of its pixels is MESSY,
66 // - SORTED if all of its pixels are SORTED,
67 // - NON_OVERLAPPING if all of its pixels are NON_OVERLAPPING,
68 // - TIDY if all of its pixels are TIDY.
69 //
70 // Note: the rather complicated definition of NON_OVERLAPPING prohibits
71 // overlapping volume samples, coincident point samples and point samples
72 // in the middle of a volume sample, but it does allow point samples at
73 // the front or back of a volume sample.
74 //
75 //-----------------------------------------------------------------------------
76 
77 #include "ImfNamespace.h"
78 #include "ImfExport.h"
79 
80 
82 
84 {
85  DIS_MESSY = 0,
88  DIS_TIDY = 3,
89 
90  DIS_NUMSTATES // Number of different image states
91 };
92 
94 
95 
96 #endif
#define OPENEXR_IMF_INTERNAL_NAMESPACE_HEADER_EXIT
Definition: ImfNamespace.h:109
DeepImageState
#define OPENEXR_IMF_INTERNAL_NAMESPACE_HEADER_ENTER
Definition: ImfNamespace.h:108