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79 lines
1.6 KiB
79 lines
1.6 KiB
4 years ago
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#pragma once
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#include <cstring>
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#include <fstream>
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#include <SDL_endian.h>
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#include "utils/endian.hpp"
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namespace devilution {
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template <typename T = uint8_t>
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T ReadByte(std::ifstream &stream)
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{
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static_assert(sizeof(T) == 1, "invalid argument");
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char buf;
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stream.read(&buf, 1);
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return static_cast<T>(buf);
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}
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template <typename T = uint16_t>
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T ReadLE16(std::ifstream &stream)
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{
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static_assert(sizeof(T) == 2, "invalid argument");
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char buf[2];
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stream.read(buf, 2);
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return static_cast<T>(LoadLE16(buf));
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}
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template <typename T = uint32_t>
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T ReadLE32(std::ifstream &stream)
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{
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static_assert(sizeof(T) == 4, "invalid argument");
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char buf[4];
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stream.read(buf, 4);
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return static_cast<T>(LoadLE32(buf));
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}
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inline float ReadLEFloat(std::ifstream &stream)
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{
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static_assert(sizeof(float) == sizeof(uint32_t), "invalid float size");
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const uint32_t val = ReadLE32(stream);
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float result;
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memcpy(&result, &val, sizeof(float));
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return result;
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}
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inline void WriteByte(std::ofstream &out, uint8_t val)
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{
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out.write(reinterpret_cast<const char *>(&val), 1);
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}
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inline void WriteLE16(std::ofstream &out, uint16_t val)
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{
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char data[2];
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WriteLE16(data, val);
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out.write(data, 2);
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}
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inline void WriteLE32(std::ofstream &out, uint32_t val)
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{
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char data[4];
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WriteLE32(data, val);
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out.write(data, 4);
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}
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inline void WriteLEFloat(std::ofstream &out, float val)
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{
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static_assert(sizeof(float) == sizeof(uint32_t), "invalid float size");
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uint32_t intVal;
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memcpy(&intVal, &val, sizeof(uint32_t));
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char data[4];
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WriteLE32(data, intVal);
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out.write(data, 4);
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}
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} // namespace devilution
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