8d25f0766a
record goes. I added a new function to read a continued record body. I added code in the existing ReadRecord routine to peek ahead for a CONTINUATION_OP if the current record could possibly be continued. opcodes.h -- Besides adding the opcode for CONTINUATION_OP, I also added new 15.8 opcodes. I labeled opcodes as "ignored" if I could easily discern that our loader wasn't doing anything with them. For historical reasons, I added all obsolete opcodes, prefixed with "OBS_". LocalVertexPoolRecord.h, LocalVertexPoolRecord.cpp -- This is one of three types of records that can be continued with a CONTINUATION_OP record. I removed all invalid assertions that assumed the record length would always be less than 65535. I replaced the "vertex size" calculation with a more efficient method based on caching the size from attribute bits, rather than taking the length of the record and dividing it by numVerts (which would have been incorrect if the record had been continued)."
113 lines
2.1 KiB
C++
113 lines
2.1 KiB
C++
#ifndef __FLT_INPUT_H
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#define __FLT_INPUT_H
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#include "Record.h"
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#include <map>
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#include <list>
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#include <string>
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#include "stdio.h"
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namespace osg {
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class Object;
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class Image;
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class Node;
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};
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namespace flt {
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class Record;
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class FltFile;
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class Input
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{
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public:
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Input() {}
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virtual SRecHeader* readRecord() = 0;
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virtual bool eof() = 0;
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virtual bool rewindLast() = 0;
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virtual long offset() = 0;
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Record* readCreateRecord(FltFile* pFltFile);
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protected:
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/** disallow creation of Objects on the stack.*/
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virtual ~Input() {}
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private:
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virtual bool _readHeader(SRecHeader* pHdr) = 0;
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virtual bool _readBody(SRecHeader* pData) = 0;
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virtual bool _readContinuedBody(char* pData, int nBytes) = 0;
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};
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/** Class for managing the reading of binary .flt files.*/
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class FileInput : public Input
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{
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public:
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FileInput();
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virtual ~FileInput();
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bool open(const std::string& fileName);
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void close();
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virtual bool eof();
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virtual bool rewindLast();
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virtual long offset();
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virtual SRecHeader* readRecord();
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private:
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virtual bool _readHeader(SRecHeader* pHdr);
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virtual bool _readBody(SRecHeader* pData);
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virtual bool _readContinuedBody(char* pData, int nBytes);
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void _init();
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size_t _read(void *buffer, size_t size);
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FILE* _file;
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bool _eof;
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long _lRecOffset;
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};
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class MemInput : public Input
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{
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public:
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MemInput();
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virtual ~MemInput();
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bool open(SRecHeader* pHdr);
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void close();
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virtual bool eof();
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virtual bool rewindLast();
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virtual long offset();
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virtual SRecHeader* readRecord();
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private:
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virtual bool _readHeader(SRecHeader* pHdr);
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virtual bool _readBody(SRecHeader* pData);
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virtual bool _readContinuedBody(char* pData, int nBytes);
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void _init();
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size_t _read(void *buffer, size_t size);
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bool _eof;
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long _lRecOffset;
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};
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}; // end namespace flt
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#endif // __FLT_INPUT_H
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