dolphin/Source/Core/Common/MinizipUtil.h

42 lines
1.0 KiB
C++

// Copyright 2019 Dolphin Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#pragma once
#include <algorithm>
#include <mz_compat.h>
#include "Common/CommonTypes.h"
#include "Common/ScopeGuard.h"
namespace Common
{
// Reads all of the current file. destination must be big enough to fit the whole file.
template <typename ContiguousContainer>
bool ReadFileFromZip(unzFile file, ContiguousContainer* destination)
{
const u32 MAX_BUFFER_SIZE = 65535;
if (unzOpenCurrentFile(file) != UNZ_OK)
return false;
Common::ScopeGuard guard{[&] { unzCloseCurrentFile(file); }};
u32 bytes_to_go = static_cast<u32>(destination->size());
while (bytes_to_go > 0)
{
const int bytes_read =
unzReadCurrentFile(file, &(*destination)[destination->size() - bytes_to_go],
std::min(bytes_to_go, MAX_BUFFER_SIZE));
if (bytes_read < 0)
return false;
bytes_to_go -= static_cast<u32>(bytes_read);
}
return true;
}
} // namespace Common