1 /////////////////////////////////////////////////////////////////////////// 2 // 3 // Copyright (c) 2004, Industrial Light & Magic, a division of Lucas 4 // Digital Ltd. LLC 5 // 6 // All rights reserved. 7 // 8 // Redistribution and use in source and binary forms, with or without 9 // modification, are permitted provided that the following conditions are 10 // met: 11 // * Redistributions of source code must retain the above copyright 12 // notice, this list of conditions and the following disclaimer. 13 // * Redistributions in binary form must reproduce the above 14 // copyright notice, this list of conditions and the following disclaimer 15 // in the documentation and/or other materials provided with the 16 // distribution. 17 // * Neither the name of Industrial Light & Magic nor the names of 18 // its contributors may be used to endorse or promote products derived 19 // from this software without specific prior written permission. 20 // 21 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 22 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 23 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 24 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 25 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 26 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 27 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 28 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 29 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 31 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 // 33 /////////////////////////////////////////////////////////////////////////// 34 35 36 #ifndef INCLUDED_IMF_TILE_OFFSETS_H 37 #define INCLUDED_IMF_TILE_OFFSETS_H 38 39 //----------------------------------------------------------------------------- 40 // 41 // class TileOffsets 42 // 43 //----------------------------------------------------------------------------- 44 45 #include <ImfTileDescription.h> 46 #include <ImfInt64.h> 47 #include <vector> 48 49 namespace Imf { 50 51 class IStream; 52 class OStream; 53 54 55 class TileOffsets 56 { 57 public: 58 59 TileOffsets (LevelMode mode = ONE_LEVEL, 60 int numXLevels = 0, 61 int numYLevels = 0, 62 const int *numXTiles = 0, 63 const int *numYTiles = 0); 64 65 // -------- 66 // File I/O 67 // -------- 68 69 void readFrom (IStream &is, bool &complete); 70 Int64 writeTo (OStream &os) const; 71 72 73 //----------------------------------------------------------- 74 // Test if the tileOffsets array is empty (all entries are 0) 75 //----------------------------------------------------------- 76 77 bool isEmpty () const; 78 79 80 //----------------------- 81 // Access to the elements 82 //----------------------- 83 84 Int64 & operator () (int dx, int dy, int lx, int ly); 85 Int64 & operator () (int dx, int dy, int l); 86 const Int64 & operator () (int dx, int dy, int lx, int ly) const; 87 const Int64 & operator () (int dx, int dy, int l) const; 88 89 private: 90 91 void findTiles (IStream &is); 92 void reconstructFromFile (IStream &is); 93 bool readTile (IStream &is); 94 bool anyOffsetsAreInvalid () const; 95 bool isValidTile (int dx, int dy, int lx, int ly) const; 96 97 LevelMode _mode; 98 int _numXLevels; 99 int _numYLevels; 100 101 std::vector<std::vector<std::vector <Int64> > > _offsets; 102 }; 103 104 105 } // namespace Imf 106 107 #endif 108