75 lines
1.9 KiB
C++
75 lines
1.9 KiB
C++
///////////////////////////////////////////////////////////////////////////////
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// Name: FilePacker.cpp
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///////////////////////////////////////////////////////////////////////////////
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#include "pmdexp_types.h"
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#include "FilePacker.h"
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#include <stdio.h>
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////////////////////////////////////////////////////////////////////////////////////////
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// CFilePacker constructor
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CFilePacker::CFilePacker()
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{
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}
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////////////////////////////////////////////////////////////////////////////////////////
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// Write: write out any packed data to file, using given version and magic bits
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void CFilePacker::Write(const char* filename,u32 version,const char magicstr[4])
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{
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FILE* fp=fopen(filename,"wb");
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if (!fp) {
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throw CFileOpenError();
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}
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// write magic bits
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if (fwrite(magicstr,sizeof(char)*4,1,fp)!=1) {
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fclose(fp);
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throw CFileWriteError();
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}
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// write version
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if (fwrite(&version,sizeof(version),1,fp)!=1) {
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fclose(fp);
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throw CFileWriteError();
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}
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// get size of data
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u32 datasize=(u32)m_Data.size();
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if (fwrite(&datasize,sizeof(datasize),1,fp)!=1) {
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fclose(fp);
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throw CFileWriteError();
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}
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// write out one big chunk of data
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if (fwrite(&m_Data[0],datasize,1,fp)!=1) {
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fclose(fp);
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throw CFileWriteError();
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}
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// all done
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fclose(fp);
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}
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////////////////////////////////////////////////////////////////////////////////////////
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// PackRaw: pack given number of bytes onto the end of the data stream
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void CFilePacker::PackRaw(const void* rawdata,u32 rawdatalen)
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{
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u32 start=(u32)m_Data.size();
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m_Data.resize(m_Data.size()+rawdatalen);
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memcpy(&m_Data[start],rawdata,rawdatalen);
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}
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////////////////////////////////////////////////////////////////////////////////////////
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// PackString: pack a string onto the end of the data stream
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void CFilePacker::PackString(const char* str)
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{
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u32 len=(u32)strlen(str);
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PackRaw(&len,sizeof(len));
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PackRaw((const char*) str,len);
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}
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