1 /****************************************************************************** 2 * 3 * Purpose: Block directory API. 4 * 5 ****************************************************************************** 6 * Copyright (c) 2011 7 * PCI Geomatics, 90 Allstate Parkway, Markham, Ontario, Canada. 8 * 9 * Permission is hereby granted, free of charge, to any person obtaining a 10 * copy of this software and associated documentation files (the "Software"), 11 * to deal in the Software without restriction, including without limitation 12 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 13 * and/or sell copies of the Software, and to permit persons to whom the 14 * Software is furnished to do so, subject to the following conditions: 15 * 16 * The above copyright notice and this permission notice shall be included 17 * in all copies or substantial portions of the Software. 18 * 19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 20 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 21 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 22 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 23 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 24 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 25 * DEALINGS IN THE SOFTWARE. 26 ****************************************************************************/ 27 28 #ifndef PCIDSK_BINARY_TILE_DIR_H 29 #define PCIDSK_BINARY_TILE_DIR_H 30 31 #include "blockdir/blocktiledir.h" 32 33 namespace PCIDSK 34 { 35 36 class BinaryTileLayer; 37 38 /************************************************************************/ 39 /* class BinaryTileDir */ 40 /************************************************************************/ 41 42 /** 43 * Class used to manage a binary block tile directory. 44 * 45 * @see BlockTileDir 46 */ 47 class PCIDSK_DLL BinaryTileDir : public BlockTileDir 48 { 49 public: 50 #pragma pack(push, 1) 51 52 /// The block directory info. 53 struct BlockDirInfo 54 { 55 uint32 nLayerCount; 56 uint32 nBlockSize; 57 }; 58 59 #pragma pack(pop) 60 61 protected: 62 // The block directory info. 63 BlockDirInfo msBlockDir; 64 65 size_t GetDirSize(void) const; 66 67 void InitBlockList(BinaryTileLayer * poLayer); 68 69 virtual void ReadLayerBlocks(uint32 iLayer) override; 70 virtual void ReadFreeBlockLayer(void) override; 71 virtual void WriteDir(void) override; 72 73 virtual BlockLayer *_CreateLayer(uint16 nLayerType, uint32 iLayer) override; 74 virtual void _DeleteLayer(uint32 iLayer) override; 75 76 virtual std::string GetDataSegmentName(void) const override; 77 virtual std::string GetDataSegmentDesc(void) const override; 78 79 void SwapBlockDir(BlockDirInfo * psBlockDir); 80 81 public: 82 static uint32 GetOptimizedBlockSize(BlockFile * poFile); 83 static size_t GetOptimizedDirSize(BlockFile * poFile); 84 85 BinaryTileDir(BlockFile * poFile, uint16 nSegment); 86 BinaryTileDir(BlockFile * poFile, uint16 nSegment, uint32 nBlockSize); 87 88 BinaryTileLayer * GetTileLayer(uint32 iLayer); 89 90 virtual uint32 GetBlockSize(void) const override; 91 }; 92 93 } // namespace PCIDSK 94 95 #endif 96