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00001 00002 // 00003 // Copyright (c) 2004, Industrial Light & Magic, a division of Lucas 00004 // Digital Ltd. LLC 00005 // 00006 // All rights reserved. 00007 // 00008 // Redistribution and use in source and binary forms, with or without 00009 // modification, are permitted provided that the following conditions are 00010 // met: 00011 // * Redistributions of source code must retain the above copyright 00012 // notice, this list of conditions and the following disclaimer. 00013 // * Redistributions in binary form must reproduce the above 00014 // copyright notice, this list of conditions and the following disclaimer 00015 // in the documentation and/or other materials provided with the 00016 // distribution. 00017 // * Neither the name of Industrial Light & Magic nor the names of 00018 // its contributors may be used to endorse or promote products derived 00019 // from this software without specific prior written permission. 00020 // 00021 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 00022 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 00023 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 00024 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 00025 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 00026 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 00027 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 00028 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 00029 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 00030 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 00031 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00032 // 00034 00035 00036 #ifndef INCLUDED_IMF_TILE_OFFSETS_H 00037 #define INCLUDED_IMF_TILE_OFFSETS_H 00038 00039 //----------------------------------------------------------------------------- 00040 // 00041 // class TileOffsets 00042 // 00043 //----------------------------------------------------------------------------- 00044 00045 #include <ImfTileDescription.h> 00046 #include <ImfInt64.h> 00047 #include <vector> 00048 00049 namespace Imf { 00050 00051 class IStream; 00052 class OStream; 00053 00054 00055 class TileOffsets 00056 { 00057 public: 00058 00059 TileOffsets (LevelMode mode = ONE_LEVEL, 00060 int numXLevels = 0, 00061 int numYLevels = 0, 00062 const int *numXTiles = 0, 00063 const int *numYTiles = 0); 00064 00065 // -------- 00066 // File I/O 00067 // -------- 00068 00069 void readFrom (IStream &is, bool &complete); 00070 Int64 writeTo (OStream &os) const; 00071 00072 00073 //----------------------------------------------------------- 00074 // Test if the tileOffsets array is empty (all entries are 0) 00075 //----------------------------------------------------------- 00076 00077 bool isEmpty () const; 00078 00079 00080 //----------------------- 00081 // Access to the elements 00082 //----------------------- 00083 00084 Int64 & operator () (int dx, int dy, int lx, int ly); 00085 Int64 & operator () (int dx, int dy, int l); 00086 const Int64 & operator () (int dx, int dy, int lx, int ly) const; 00087 const Int64 & operator () (int dx, int dy, int l) const; 00088 00089 private: 00090 00091 void findTiles (IStream &is); 00092 void reconstructFromFile (IStream &is); 00093 bool readTile (IStream &is); 00094 bool anyOffsetsAreInvalid () const; 00095 bool isValidTile (int dx, int dy, int lx, int ly) const; 00096 00097 LevelMode _mode; 00098 int _numXLevels; 00099 int _numYLevels; 00100 00101 std::vector<std::vector<std::vector <Int64> > > _offsets; 00102 }; 00103 00104 00105 } // namespace Imf 00106 00107 #endif