1 /* 2 bParse 3 Copyright (c) 2006-2009 Charlie C & Erwin Coumans http://gamekit.googlecode.com 4 5 This software is provided 'as-is', without any express or implied warranty. 6 In no event will the authors be held liable for any damages arising from the use of this software. 7 Permission is granted to anyone to use this software for any purpose, 8 including commercial applications, and to alter it and redistribute it freely, 9 subject to the following restrictions: 10 11 1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required. 12 2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software. 13 3. This notice may not be removed or altered from any source distribution. 14 */ 15 16 #ifndef __BFILE_H__ 17 #define __BFILE_H__ 18 19 #include "b3Common.h" 20 #include "b3Chunk.h" 21 #include <stdio.h> 22 23 namespace bParse 24 { 25 // ----------------------------------------------------- // 26 enum bFileFlags 27 { 28 FD_INVALID = 0, 29 FD_OK = 1, 30 FD_VOID_IS_8 = 2, 31 FD_ENDIAN_SWAP = 4, 32 FD_FILE_64 = 8, 33 FD_BITS_VARIES = 16, 34 FD_VERSION_VARIES = 32, 35 FD_DOUBLE_PRECISION = 64, 36 FD_BROKEN_DNA = 128 37 }; 38 39 enum bFileVerboseMode 40 { 41 FD_VERBOSE_EXPORT_XML = 1, 42 FD_VERBOSE_DUMP_DNA_TYPE_DEFINITIONS = 2, 43 FD_VERBOSE_DUMP_CHUNKS = 4, 44 FD_VERBOSE_DUMP_FILE_INFO = 8, 45 }; 46 // ----------------------------------------------------- // 47 class bFile 48 { 49 protected: 50 char m_headerString[7]; 51 52 bool mOwnsBuffer; 53 char *mFileBuffer; 54 int mFileLen; 55 int mVersion; 56 57 bPtrMap mLibPointers; 58 59 int mDataStart; 60 bDNA *mFileDNA; 61 bDNA *mMemoryDNA; 62 63 b3AlignedObjectArray<char *> m_pointerFixupArray; 64 b3AlignedObjectArray<char *> m_pointerPtrFixupArray; 65 66 b3AlignedObjectArray<bChunkInd> m_chunks; 67 b3HashMap<b3HashPtr, bChunkInd> m_chunkPtrPtrMap; 68 69 // 70 71 bPtrMap mDataPointers; 72 73 int mFlags; 74 75 // //////////////////////////////////////////////////////////////////////////// 76 77 // buffer offset util 78 int getNextBlock(bChunkInd *dataChunk, const char *dataPtr, const int flags); 79 void safeSwapPtr(char *dst, const char *src); 80 81 virtual void parseHeader(); 82 83 virtual void parseData() = 0; 84 85 void resolvePointersMismatch(); 86 void resolvePointersChunk(const bChunkInd &dataChunk, int verboseMode); 87 88 int resolvePointersStructRecursive(char *strcPtr, int old_dna, int verboseMode, int recursion); 89 //void swapPtr(char *dst, char *src); 90 91 void parseStruct(char *strcPtr, char *dtPtr, int old_dna, int new_dna, bool fixupPointers); 92 void getMatchingFileDNA(short *old, const char *lookupName, const char *lookupType, char *strcData, char *data, bool fixupPointers); 93 char *getFileElement(short *firstStruct, char *lookupName, char *lookupType, char *data, short **foundPos); 94 95 void swap(char *head, class bChunkInd &ch, bool ignoreEndianFlag); 96 void swapData(char *data, short type, int arraySize, bool ignoreEndianFlag); 97 void swapStruct(int dna_nr, char *data, bool ignoreEndianFlag); 98 void swapLen(char *dataPtr); 99 void swapDNA(char *ptr); 100 101 char *readStruct(char *head, class bChunkInd &chunk); 102 char *getAsString(int code); 103 104 void parseInternal(int verboseMode, char *memDna, int memDnaLength); 105 106 public: 107 bFile(const char *filename, const char headerString[7]); 108 109 //todo: make memoryBuffer const char 110 //bFile( const char *memoryBuffer, int len); 111 bFile(char *memoryBuffer, int len, const char headerString[7]); 112 virtual ~bFile(); 113 getFileDNA()114 bDNA *getFileDNA() 115 { 116 return mFileDNA; 117 } 118 119 virtual void addDataBlock(char *dataBlock) = 0; 120 getFlags()121 int getFlags() const 122 { 123 return mFlags; 124 } 125 getLibPointers()126 bPtrMap &getLibPointers() 127 { 128 return mLibPointers; 129 } 130 131 void *findLibPointer(void *ptr); 132 133 bool ok(); 134 135 virtual void parse(int verboseMode) = 0; 136 137 virtual int write(const char *fileName, bool fixupPointers = false) = 0; 138 139 virtual void writeChunks(FILE *fp, bool fixupPointers); 140 141 virtual void writeDNA(FILE *fp) = 0; 142 143 void updateOldPointers(); 144 void resolvePointers(int verboseMode); 145 146 void dumpChunks(bDNA *dna); 147 getVersion()148 int getVersion() const 149 { 150 return mVersion; 151 } 152 //pre-swap the endianness, so that data loaded on a target with different endianness doesn't need to be swapped 153 void preSwap(); 154 void writeFile(const char *fileName); 155 }; 156 } // namespace bParse 157 158 #endif //__BFILE_H__ 159