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/*
* Copyright 2019-2021 Diligent Graphics LLC
* Copyright 2015-2019 Egor Yusov
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* In no event and under no legal theory, whether in tort (including negligence),
* contract, or otherwise, unless required by applicable law (such as deliberate
* and grossly negligent acts) or agreed to in writing, shall any Contributor be
* liable for any damages, including any direct, indirect, special, incidental,
* or consequential damages of any character arising as a result of this License or
* out of the use or inability to use the software (including but not limited to damages
* for loss of goodwill, work stoppage, computer failure or malfunction, or any and
* all other commercial damages or losses), even if such Contributor has been advised
* of the possibility of such damages.
*/
#pragma once
#include <sstream>
#include <iomanip>
namespace Diligent
{
template <typename SSType>
void FormatStrSS(SSType& ss)
{
}
template <typename SSType, typename ArgType>
void FormatStrSS(SSType& ss, const ArgType& Arg)
{
ss << Arg;
}
template <typename SSType, typename FirstArgType, typename... RestArgsType>
void FormatStrSS(SSType& ss, const FirstArgType& FirstArg, const RestArgsType&... RestArgs)
{
FormatStrSS(ss, FirstArg);
FormatStrSS(ss, RestArgs...); // recursive call using pack expansion syntax
}
template <typename... RestArgsType>
std::string FormatString(const RestArgsType&... Args)
{
std::stringstream ss;
FormatStrSS(ss, Args...);
return ss.str();
}
template <typename Type>
struct MemorySizeFormatter
{
MemorySizeFormatter(Type _size, int _precision, Type _ref_size) :
size{_size},
precision{_precision},
ref_size{_ref_size}
{}
Type size = 0;
int precision = 0;
Type ref_size = 0;
};
template <typename Type>
MemorySizeFormatter<Type> FormatMemorySize(Type _size, int _precision = 0, Type _ref_size = 0)
{
return MemorySizeFormatter<Type>{_size, _precision, _ref_size};
}
template <typename SSType, typename Type>
void FormatStrSS(SSType& ss, const MemorySizeFormatter<Type>& Arg)
{
auto ref_size = Arg.ref_size != 0 ? Arg.ref_size : Arg.size;
if (ref_size >= (1 << 30))
{
ss << std::fixed << std::setprecision(Arg.precision) << static_cast<double>(Arg.size) / double{1 << 30} << " GB";
}
else if (ref_size >= (1 << 20))
{
ss << std::fixed << std::setprecision(Arg.precision) << static_cast<double>(Arg.size) / double{1 << 20} << " MB";
}
else if (ref_size >= (1 << 10))
{
ss << std::fixed << std::setprecision(Arg.precision) << static_cast<double>(Arg.size) / double{1 << 10} << " KB";
}
else
{
ss << Arg.size << (((Arg.size & 0x01) == 0x01) ? " Byte" : " Bytes");
}
}
} // namespace Diligent
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