OAG Library (OpenGL) Part 1 - Setting Up the Library for an MFC Application

//#include "rglModelPCH.h"

#include <stdlib.h>
#include "..\include\DefaultIOSystem.h"


#ifdef __unix__
#include <sys/param.h>
#include <stdlib.h>
#endif


// ------------------------------------------------------------------------------------------------
// Constructor. 
DefaultIOSystem::DefaultIOSystem()
{
	// nothing to do here
}

// ------------------------------------------------------------------------------------------------
// Destructor. 
DefaultIOSystem::~DefaultIOSystem()
{
	// nothing to do here
}

// ------------------------------------------------------------------------------------------------
// Tests for the existence of a file at the given path.
bool DefaultIOSystem::Exists( const char* pFile) const
{
	FILE* file = ::fopen( pFile, "rb");
	if( !file)
		return false;

	::fclose( file);
	return true;
}



// ------------------------------------------------------------------------------------------------
// Closes the given file and releases all resources associated with it.
void DefaultIOSystem::Close( IOStream* pFile)
{
	delete pFile;
}

// ------------------------------------------------------------------------------------------------
// Returns the operation specific directory separator
char DefaultIOSystem::getOsSeparator() const
{
#ifndef _WIN32
	return '/';
#else
	return '\\';
#endif
}

// this should be sufficient for all platforms :D -- not really :->
#define PATHLIMIT 4096 

// ------------------------------------------------------------------------------------------------
// Convert a relative path into an absolute path
inline void MakeAbsolutePath (const char* in, char* _out)
{
#ifdef _WIN32
	::_fullpath(_out, in,PATHLIMIT);
#else
    // use realpath
    realpath(in, _out);
#endif    
}


#undef PATHLIMIT