metaforce/hecl/include/HECL.hpp

159 lines
4.3 KiB
C++

#ifndef HECL_HPP
#define HECL_HPP
#include <functional>
namespace HECL
{
#include "../extern/blowfish/blowfish.h"
/**
* @brief Severity of a log event
*/
enum LogType
{
LOG_INFO,
LOG_WARN,
LOG_ERROR
};
/**
* @brief Logger callback type
*/
typedef std::function<void(LogType, std::string&)> TLogger;
/**
* @brief FourCC representation used within HECL's database
*
* FourCCs are efficient, mnemonic four-char-sequences used to represent types
* while fitting comfortably in a 32-bit word. HECL uses a four-char array
* to remain endian-independent.
*/
class FourCC
{
union
{
char fcc[4];
uint32_t num;
};
public:
FourCC() /* Sentinel FourCC */
: num(0) {}
FourCC(const char* name)
: num(*(uint32_t*)name) {}
inline bool operator==(FourCC& other) {return num == other.num;}
inline bool operator!=(FourCC& other) {return num != other.num;}
inline std::string toString() {return std::string(fcc, 4);}
};
/**
* @brief Hash representation used for all storable and comparable objects
*
* Hashes are used within HECL to avoid redundant storage of objects;
* providing a rapid mechanism to compare for equality.
*/
class ObjectHash
{
int64_t hash;
public:
ObjectHash(const void* buf, size_t len)
: hash(Blowfish_hash(buf, len)) {}
ObjectHash(int64_t hashin)
: hash(hashin) {}
inline bool operator==(ObjectHash& other) {return hash == other.hash;}
inline bool operator!=(ObjectHash& other) {return hash != other.hash;}
inline bool operator<(ObjectHash& other) {return hash < other.hash;}
inline bool operator>(ObjectHash& other) {return hash > other.hash;}
inline bool operator<=(ObjectHash& other) {return hash <= other.hash;}
inline bool operator>=(ObjectHash& other) {return hash >= other.hash;}
};
inline int16_t bswap(int16_t val)
{
#if __GNUC__
return __builtin_bswap16(val);
#elif _WIN32
return _byteswap_ushort(val);
#else
return (val = (val << 8) | ((val >> 8) & 0xFF));
#endif
}
inline uint16_t bswap(uint16_t val)
{
#if __GNUC__
return __builtin_bswap16(val);
#elif _WIN32
return _byteswap_ushort(val);
#else
return (val = (val << 8) | ((val >> 8) & 0xFF));
#endif
}
inline int32_t bswap(int32_t val)
{
#if __GNUC__
return __builtin_bswap32(val);
#elif _WIN32
return _byteswap_ulong(val);
#else
val = (val & 0x0000FFFF) << 16 | (val & 0xFFFF0000) >> 16;
val = (val & 0x00FF00FF) << 8 | (val & 0xFF00FF00) >> 8;
return val;
#endif
}
inline uint32_t bswap(uint32_t val)
{
#if __GNUC__
return __builtin_bswap32(val);
#elif _WIN32
return _byteswap_ulong(val);
#else
val = (val & 0x0000FFFF) << 16 | (val & 0xFFFF0000) >> 16;
val = (val & 0x00FF00FF) << 8 | (val & 0xFF00FF00) >> 8;
return val;
#endif
}
inline int64_t bswap(int64_t val)
{
#if __GNUC__
return __builtin_bswap64(val);
#elif _WIN32
return _byteswap_uint64(val);
#else
return (val = ((atInt64)((((atInt64)(val) & 0xFF00000000000000ULL) >> 56) |
(((atInt64)(val) & 0x00FF000000000000ULL) >> 40) |
(((atInt64)(val) & 0x0000FF0000000000ULL) >> 24) |
(((atInt64)(val) & 0x000000FF00000000ULL) >> 8) |
(((atInt64)(val) & 0x00000000FF000000ULL) << 8) |
(((atInt64)(val) & 0x0000000000FF0000ULL) << 24) |
(((atInt64)(val) & 0x000000000000FF00ULL) << 40) |
(((atInt64)(val) & 0x00000000000000FFULL) << 56))));
#endif
}
inline uint64_t bswap(uint64_t val)
{
#if __GNUC__
return __builtin_bswap64(val);
#elif _WIN32
return _byteswap_uint64(val);
#else
return (val = ((atInt64)((((atInt64)(val) & 0xFF00000000000000ULL) >> 56) |
(((atInt64)(val) & 0x00FF000000000000ULL) >> 40) |
(((atInt64)(val) & 0x0000FF0000000000ULL) >> 24) |
(((atInt64)(val) & 0x000000FF00000000ULL) >> 8) |
(((atInt64)(val) & 0x00000000FF000000ULL) << 8) |
(((atInt64)(val) & 0x0000000000FF0000ULL) << 24) |
(((atInt64)(val) & 0x000000000000FF00ULL) << 40) |
(((atInt64)(val) & 0x00000000000000FFULL) << 56))));
#endif
}
}
#endif // HECL_HPP