dingusppc/utils/imgfile_sdl.cpp

68 lines
1.7 KiB
C++

/*
DingusPPC - The Experimental PowerPC Macintosh emulator
Copyright (C) 2018-23 divingkatae and maximum
(theweirdo) spatium
(Contact divingkatae#1017 or powermax#2286 on Discord for more info)
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include <utils/imgfile.h>
#include <fstream>
class ImgFile::Impl {
public:
std::fstream stream;
};
ImgFile::ImgFile(): impl(std::make_unique<Impl>())
{
}
ImgFile::~ImgFile() = default;
bool ImgFile::open(const std::string &img_path)
{
impl->stream.open(img_path, std::ios::in | std::ios::out | std::ios::binary);
return !impl->stream.fail();
}
void ImgFile::close()
{
impl->stream.close();
}
size_t ImgFile::size() const
{
impl->stream.seekg(0, impl->stream.end);
return impl->stream.tellg();
}
size_t ImgFile::read(void* buf, off_t offset, size_t length) const
{
impl->stream.seekg(offset, std::ios::beg);
impl->stream.read((char *)buf, length);
return impl->stream.gcount();
}
size_t ImgFile::write(const void* buf, off_t offset, size_t length)
{
impl->stream.seekg(offset, std::ios::beg);
impl->stream.write((const char *)buf, length);
return impl->stream.gcount();
}