| 1 | /////////////////////////////////////////////////////////////////////////// |
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| 2 | // |
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| 3 | // Copyright (c) 2013, Industrial Light & Magic, a division of Lucas |
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| 4 | // Digital Ltd. LLC |
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| 5 | // |
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| 6 | // All rights reserved. |
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| 7 | // |
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| 8 | // Redistribution and use in source and binary forms, with or without |
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| 9 | // modification, are permitted provided that the following conditions are |
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| 10 | // met: |
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| 11 | // * Redistributions of source code must retain the above copyright |
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| 12 | // notice, this list of conditions and the following disclaimer. |
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| 13 | // * Redistributions in binary form must reproduce the above |
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| 14 | // copyright notice, this list of conditions and the following disclaimer |
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| 15 | // in the documentation and/or other materials provided with the |
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| 16 | // distribution. |
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| 17 | // * Neither the name of Industrial Light & Magic nor the names of |
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| 18 | // its contributors may be used to endorse or promote products derived |
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| 19 | // from this software without specific prior written permission. |
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| 20 | // |
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| 21 | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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| 22 | // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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| 23 | // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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| 24 | // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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| 25 | // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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| 26 | // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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| 27 | // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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| 28 | // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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| 29 | // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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| 30 | // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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| 31 | // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| 32 | // |
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| 33 | /////////////////////////////////////////////////////////////////////////// |
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| 34 | |
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| 35 | |
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| 36 | #ifndef INCLUDED_IMF_DEEPIMAGESTATE_H |
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| 37 | #define INCLUDED_IMF_DEEPIMAGESTATE_H |
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| 38 | |
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| 39 | //----------------------------------------------------------------------------- |
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| 40 | // |
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| 41 | // enum DeepImageState -- describes how orderly the pixel data |
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| 42 | // in a deep image are |
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| 43 | // |
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| 44 | // The samples in a deep image pixel may be sorted according to |
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| 45 | // depth, and the sample depths or depth ranges may or may not |
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| 46 | // overlap each other. A pixel is |
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| 47 | // |
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| 48 | // - SORTED if for every i and j with i < j |
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| 49 | // |
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| 50 | // (Z[i] < Z[j]) || (Z[i] == Z[j] && ZBack[i] < ZBack[j]), |
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| 51 | // |
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| 52 | // - NON_OVERLAPPING if for every i and j with i != j |
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| 53 | // |
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| 54 | // (Z[i] < Z[j] && ZBack[i] <= Z[j]) || |
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| 55 | // (Z[j] < Z[i] && ZBack[j] <= Z[i]) || |
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| 56 | // (Z[i] == Z[j] && ZBack[i] <= Z[i] & ZBack[j] > Z[j]) || |
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| 57 | // (Z[i] == Z[j] && ZBack[j] <= Z[j] & ZBack[i] > Z[i]), |
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| 58 | // |
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| 59 | // - TIDY if it is SORTED and NON_OVERLAPPING, |
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| 60 | // |
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| 61 | // - MESSY if it is neither SORTED nor NON_OVERLAPPING. |
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| 62 | // |
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| 63 | // A deep image is |
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| 64 | // |
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| 65 | // - MESSY if at least one of its pixels is MESSY, |
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| 66 | // - SORTED if all of its pixels are SORTED, |
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| 67 | // - NON_OVERLAPPING if all of its pixels are NON_OVERLAPPING, |
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| 68 | // - TIDY if all of its pixels are TIDY. |
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| 69 | // |
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| 70 | // Note: the rather complicated definition of NON_OVERLAPPING prohibits |
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| 71 | // overlapping volume samples, coincident point samples and point samples |
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| 72 | // in the middle of a volume sample, but it does allow point samples at |
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| 73 | // the front or back of a volume sample. |
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| 74 | // |
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| 75 | //----------------------------------------------------------------------------- |
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| 76 | |
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| 77 | #include "ImfNamespace.h" |
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| 78 | #include "ImfExport.h" |
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| 79 | |
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| 80 | |
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| 81 | OPENEXR_IMF_INTERNAL_NAMESPACE_HEADER_ENTER |
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| 82 | |
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| 83 | enum DeepImageState |
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| 84 | { |
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| 85 | DIS_MESSY = 0, |
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| 86 | DIS_SORTED = 1, |
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| 87 | DIS_NON_OVERLAPPING = 2, |
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| 88 | DIS_TIDY = 3, |
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| 89 | |
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| 90 | DIS_NUMSTATES // Number of different image states |
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| 91 | }; |
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| 92 | |
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| 93 | OPENEXR_IMF_INTERNAL_NAMESPACE_HEADER_EXIT |
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| 94 | |
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| 95 | |
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| 96 | #endif |
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| 97 | |
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