caudio/Source/cFileSource.cpp

78 lines
1.4 KiB
C++

#include "../Headers/cFileSource.h"
#include <cstring>
namespace cAudio
{
//!Init Takes a string for file name
cFileSource::cFileSource(const std::string& filename) : pFile(NULL), Valid(false), Filesize(0)
{
if(filename.length() != 0)
{
pFile = fopen(filename.c_str(),"rb");
if(pFile)
Valid = true;
}
if(Valid)
{
fseek(pFile, 0, SEEK_END);
Filesize = ftell(pFile);
fseek(pFile, 0, SEEK_SET);
}
}
cFileSource::~cFileSource()
{
if(pFile)
fclose(pFile);
}
//!Returns true if the FileSource is valid
bool cFileSource::isValid()
{
return Valid;
}
//!Returns the current position of the file stream.
int cFileSource::getCurrentPos()
{
return ftell(pFile);
}
//!Returns the file size
int cFileSource::getSize()
{
return Filesize;
}
//!Read current FileSource Data
int cFileSource::read(void* output, int size)
{
return fread(output, sizeof(char), size, pFile);
}
//!Seek the file stream
bool cFileSource::seek(int amount, bool relative)
{
if(relative == true)
{
int oldamount = ftell(pFile);
fseek(pFile, amount, SEEK_CUR);
//check against the absolute position
if(oldamount+amount != ftell(pFile))
return false;
}
else
{
fseek(pFile, amount, SEEK_SET);
if(amount != ftell(pFile))
return false;
}
return true;
}
};