mmdeploy/csrc/core/utils/formatter.h

120 lines
2.9 KiB
C++

// Copyright (c) OpenMMLab. All rights reserved.
#ifndef MMDEPLOY_SRC_UTILS_FORMATTER_H_
#define MMDEPLOY_SRC_UTILS_FORMATTER_H_
#include <ostream>
#include <utility>
#include "core/logger.h"
#include "core/types.h"
#include "spdlog/fmt/ostr.h"
#if FMT_VERSION >= 50000
#include "spdlog/fmt/bundled/ostream.h"
#include "spdlog/fmt/bundled/ranges.h"
#else
#include <type_traits>
#endif
namespace mmdeploy {
class Value;
MMDEPLOY_API std::string format_value(const Value& value);
inline std::string to_string(PixelFormat format) {
switch (format) {
case PixelFormat::kBGR:
return "BGR";
case PixelFormat::kRGB:
return "RGB";
case PixelFormat::kGRAYSCALE:
return "GRAYSCALE";
case PixelFormat::kNV12:
return "NV12";
case PixelFormat::kNV21:
return "NV21";
case PixelFormat::kBGRA:
return "BGRA";
default:
return "invalid_format_enum";
}
}
inline std::string to_string(DataType type) {
switch (type) {
case DataType::kFLOAT:
return "FLOAT";
case DataType::kHALF:
return "HALF";
case DataType::kINT8:
return "INT8";
case DataType::kINT32:
return "INT32";
case DataType::kINT64:
return "INT64";
default:
return "invalid_data_type_enum";
}
}
inline std::ostream& operator<<(std::ostream& os, PixelFormat format) {
return os << to_string(format);
}
inline std::ostream& operator<<(std::ostream& os, DataType type) { return os << to_string(type); }
} // namespace mmdeploy
namespace fmt {
#if FMT_VERSION >= 50000
// `Value` maybe an incomplete type at this point, making `operator<<` not usable
template <>
struct formatter<mmdeploy::Value> {
constexpr auto parse(format_parse_context& ctx) { return ctx.begin(); }
template <typename Context>
auto format(const mmdeploy::Value& value, Context& ctx) {
return format_to(ctx.out(), "{}", mmdeploy::format_value(value));
}
};
#else
inline void format_arg(BasicFormatter<char>& f, const char*, const mmdeploy::Value& d) {
f.writer() << mmdeploy::format_value(d);
}
template <typename T>
auto format_arg(BasicFormatter<char>& f, const char*, const T& v)
-> std::void_t<decltype(begin(v), end(v))> {
f.writer() << "[";
bool first = true;
for (const auto& x : v) {
f.writer() << (first ? "" : ", ") << fmt::format("{}", x);
first = false;
}
f.writer() << "]";
}
template <class Tuple, size_t... Is>
void format_tuple_impl(BasicFormatter<char>& f, const Tuple& t, std::index_sequence<Is...>) {
constexpr int last = sizeof...(Is) - 1;
f.writer() << "(";
((f.writer() << fmt::format("{}", std::get<Is>(t)) << (Is != last ? ", " : "")), ...);
f.writer() << ")";
}
template <typename... Ts>
void format_arg(BasicFormatter<char>& f, const char*, const std::tuple<Ts...>& t) {
format_tuple_impl(f, t, std::index_sequence_for<Ts...>{});
}
#endif
} // namespace fmt
#endif // MMDEPLOY_SRC_UTILS_FORMATTER_H_