caudio/cAudio/src/cFileSource.cpp

83 lines
1.6 KiB
C++

// Copyright (c) 2008-2011 Raynaldo (Wildicv) Rivera, Joshua (Dark_Kilauea) Jones, Murat (wolfmanfx) Sari
// This file is part of the "cAudio Engine"
// For conditions of distribution and use, see copyright notice in cAudio.h
#include "cFileSource.h"
#include "cUtils.h"
#if CAUDIO_COMPILE_WITH_FILE_SOURCE == 1
#include <cstring>
namespace cAudio
{
cFileSource::cFileSource(const char* filename) : pFile(NULL), Valid(false), Filesize(0)
{
cAudioString safeFilename = fromUTF8(filename);
if(safeFilename.length() != 0)
{
pFile = fopen(toUTF8(safeFilename),"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);
}
bool cFileSource::isValid()
{
return Valid;
}
int cFileSource::getCurrentPos()
{
return ftell(pFile);
}
int cFileSource::getSize()
{
return Filesize;
}
int cFileSource::read(void* output, int size)
{
return fread(output, sizeof(char), size, pFile);
}
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;
}
};
#endif