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/*
Copyright 2016-2023 melonDS team
This file is part of melonDS.
melonDS 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.
melonDS 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 melonDS. If not, see http://www.gnu.org/licenses/.
*/
#include "Utils.h"
#include <string.h>
namespace melonDS
{
std::pair<std::unique_ptr<u8[]>, u32> PadToPowerOf2(std::unique_ptr<u8[]>&& data, u32 len) noexcept
{
if (data == nullptr || len == 0)
return {nullptr, 0};
if ((len & (len - 1)) == 0)
return {std::move(data), len};
u32 newlen = 1;
while (newlen < len)
newlen <<= 1;
auto newdata = std::make_unique<u8[]>(newlen);
memcpy(newdata.get(), data.get(), len);
data = nullptr;
return {std::move(newdata), newlen};
}
std::pair<std::unique_ptr<u8[]>, u32> PadToPowerOf2(const u8* data, u32 len) noexcept
{
if (len == 0)
return {nullptr, 0};
u32 newlen = 1;
while (newlen < len)
newlen <<= 1;
auto newdata = std::make_unique<u8[]>(newlen);
memcpy(newdata.get(), data, len);
return {std::move(newdata), newlen};
}
std::unique_ptr<u8[]> CopyToUnique(const u8* data, u32 len) noexcept
{
if (data == nullptr || len == 0)
return nullptr;
auto newdata = std::make_unique<u8[]>(len);
memcpy(newdata.get(), data, len);
return newdata;
}
}
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