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FileInputStream.cpp
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118 lines (99 loc) · 2.93 KB
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////////////////////////////////////////////////////////////
//
// SFML - Simple and Fast Multimedia Library
// Copyright (C) 2007-2015 Laurent Gomila ([email protected])
//
// This software is provided 'as-is', without any express or implied warranty.
// In no event will the authors be held liable for any damages arising from the use of this software.
//
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it freely,
// subject to the following restrictions:
//
// 1. The origin of this software must not be misrepresented;
// you must not claim that you wrote the original software.
// If you use this software in a product, an acknowledgment
// in the product documentation would be appreciated but is not required.
//
// 2. Altered source versions must be plainly marked as such,
// and must not be misrepresented as being the original software.
//
// 3. This notice may not be removed or altered from any source distribution.
//
////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////
// Headers
////////////////////////////////////////////////////////////
#include <cpp3ds/System/FileInputStream.hpp>
namespace cpp3ds
{
////////////////////////////////////////////////////////////
FileInputStream::FileInputStream()
: m_file(NULL)
{
}
////////////////////////////////////////////////////////////
FileInputStream::~FileInputStream()
{
if (m_file)
std::fclose(m_file);
}
////////////////////////////////////////////////////////////
bool FileInputStream::open(const std::string& filename)
{
if (m_file)
std::fclose(m_file);
#ifdef EMULATION
std::string rel_filename = "res/sdmc/" + filename;
m_file = std::fopen(rel_filename.c_str(), "rb");
#else
m_file = std::fopen(filename.c_str(), "rb");
#endif
return m_file != NULL;
}
////////////////////////////////////////////////////////////
Int64 FileInputStream::read(void* data, Int64 size)
{
if (m_file)
return std::fread(data, 1, static_cast<std::size_t>(size), m_file);
else
return -1;
}
////////////////////////////////////////////////////////////
Int64 FileInputStream::seek(Int64 position)
{
if (m_file)
{
std::fseek(m_file, static_cast<std::size_t>(position), SEEK_SET);
return tell();
}
else
{
return -1;
}
}
////////////////////////////////////////////////////////////
Int64 FileInputStream::tell()
{
if (m_file)
return std::ftell(m_file);
else
return -1;
}
////////////////////////////////////////////////////////////
Int64 FileInputStream::getSize()
{
if (m_file)
{
cpp3ds::Int64 position = tell();
std::fseek(m_file, 0, SEEK_END);
cpp3ds::Int64 size = tell();
seek(position);
return size;
}
else
{
return -1;
}
}
} // namespace cpp3ds