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 49namespace Imf { 50 51class IStream; 52class OStream; 53 54 55class 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