594 lines
15 KiB
C++
594 lines
15 KiB
C++
// Copyright (c) 2012- PPSSPP Project / Dolphin Project.
|
|
|
|
// This program 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, version 2.0 or later versions.
|
|
|
|
// This program 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 2.0 for more details.
|
|
|
|
// A copy of the GPL 2.0 should have been included with the program.
|
|
// If not, see http://www.gnu.org/licenses/
|
|
|
|
// Official git repository and contact information can be found at
|
|
// https://github.com/hrydgard/ppsspp and http://www.ppsspp.org/.
|
|
|
|
#pragma once
|
|
|
|
#if defined(_MSC_VER)
|
|
#include <cstdlib>
|
|
#elif defined(__linux__)
|
|
#include <byteswap.h>
|
|
#elif defined(__FreeBSD__)
|
|
#include <sys/endian.h>
|
|
#endif
|
|
|
|
#include <cstring>
|
|
|
|
#include "common/common_types.h"
|
|
|
|
// GCC 4.6+
|
|
#if __GNUC__ >= 5 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)
|
|
|
|
#if __BYTE_ORDER__ && (__BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) && !defined(COMMON_LITTLE_ENDIAN)
|
|
#define COMMON_LITTLE_ENDIAN 1
|
|
#elif __BYTE_ORDER__ && (__BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) && !defined(COMMON_BIG_ENDIAN)
|
|
#define COMMON_BIG_ENDIAN 1
|
|
#endif
|
|
|
|
// LLVM/clang
|
|
#elif __clang__
|
|
|
|
#if __LITTLE_ENDIAN__ && !defined(COMMON_LITTLE_ENDIAN)
|
|
#define COMMON_LITTLE_ENDIAN 1
|
|
#elif __BIG_ENDIAN__ && !defined(COMMON_BIG_ENDIAN)
|
|
#define COMMON_BIG_ENDIAN 1
|
|
#endif
|
|
|
|
// MSVC
|
|
#elif defined(_MSC_VER) && !defined(COMMON_BIG_ENDIAN) && !defined(COMMON_LITTLE_ENDIAN)
|
|
|
|
#define COMMON_LITTLE_ENDIAN 1
|
|
#endif
|
|
|
|
// Worst case, default to little endian.
|
|
#if !COMMON_BIG_ENDIAN && !COMMON_LITTLE_ENDIAN
|
|
#define COMMON_LITTLE_ENDIAN 1
|
|
#endif
|
|
|
|
namespace Common {
|
|
|
|
#ifdef _MSC_VER
|
|
inline u16 swap16(u16 _data) {return _byteswap_ushort(_data);}
|
|
inline u32 swap32(u32 _data) {return _byteswap_ulong (_data);}
|
|
inline u64 swap64(u64 _data) {return _byteswap_uint64(_data);}
|
|
#elif _M_ARM
|
|
inline u16 swap16 (u16 _data) { u32 data = _data; __asm__ ("rev16 %0, %1\n" : "=l" (data) : "l" (data)); return (u16)data;}
|
|
inline u32 swap32 (u32 _data) {__asm__ ("rev %0, %1\n" : "=l" (_data) : "l" (_data)); return _data;}
|
|
inline u64 swap64(u64 _data) {return ((u64)swap32(_data) << 32) | swap32(_data >> 32);}
|
|
#elif __linux__
|
|
inline u16 swap16(u16 _data) {return bswap_16(_data);}
|
|
inline u32 swap32(u32 _data) {return bswap_32(_data);}
|
|
inline u64 swap64(u64 _data) {return bswap_64(_data);}
|
|
#elif __APPLE__
|
|
inline __attribute__((always_inline)) u16 swap16(u16 _data)
|
|
{return (_data >> 8) | (_data << 8);}
|
|
inline __attribute__((always_inline)) u32 swap32(u32 _data)
|
|
{return __builtin_bswap32(_data);}
|
|
inline __attribute__((always_inline)) u64 swap64(u64 _data)
|
|
{return __builtin_bswap64(_data);}
|
|
#elif __FreeBSD__
|
|
inline u16 swap16(u16 _data) {return bswap16(_data);}
|
|
inline u32 swap32(u32 _data) {return bswap32(_data);}
|
|
inline u64 swap64(u64 _data) {return bswap64(_data);}
|
|
#else
|
|
// Slow generic implementation.
|
|
inline u16 swap16(u16 data) {return (data >> 8) | (data << 8);}
|
|
inline u32 swap32(u32 data) {return (swap16(data) << 16) | swap16(data >> 16);}
|
|
inline u64 swap64(u64 data) {return ((u64)swap32(data) << 32) | swap32(data >> 32);}
|
|
#endif
|
|
|
|
inline float swapf(float f) {
|
|
static_assert(sizeof(u32) == sizeof(float),
|
|
"float must be the same size as uint32_t.");
|
|
|
|
u32 value;
|
|
std::memcpy(&value, &f, sizeof(u32));
|
|
|
|
value = swap32(value);
|
|
std::memcpy(&f, &value, sizeof(u32));
|
|
|
|
return f;
|
|
}
|
|
|
|
inline double swapd(double f) {
|
|
static_assert(sizeof(u64) == sizeof(double),
|
|
"double must be the same size as uint64_t.");
|
|
|
|
u64 value;
|
|
std::memcpy(&value, &f, sizeof(u64));
|
|
|
|
value = swap64(value);
|
|
std::memcpy(&f, &value, sizeof(u64));
|
|
|
|
return f;
|
|
}
|
|
|
|
} // Namespace Common
|
|
|
|
|
|
template <typename T, typename F>
|
|
struct swap_struct_t {
|
|
typedef swap_struct_t<T, F> swapped_t;
|
|
|
|
protected:
|
|
T value = T();
|
|
|
|
static T swap(T v) {
|
|
return F::swap(v);
|
|
}
|
|
public:
|
|
T const swap() const {
|
|
return swap(value);
|
|
|
|
}
|
|
swap_struct_t() = default;
|
|
swap_struct_t(const T &v): value(swap(v)) {}
|
|
|
|
template <typename S>
|
|
swapped_t& operator=(const S &source) {
|
|
value = swap((T)source);
|
|
return *this;
|
|
}
|
|
|
|
operator s8() const { return (s8)swap(); }
|
|
operator u8() const { return (u8)swap(); }
|
|
operator s16() const { return (s16)swap(); }
|
|
operator u16() const { return (u16)swap(); }
|
|
operator s32() const { return (s32)swap(); }
|
|
operator u32() const { return (u32)swap(); }
|
|
operator s64() const { return (s64)swap(); }
|
|
operator u64() const { return (u64)swap(); }
|
|
operator float() const { return (float)swap(); }
|
|
operator double() const { return (double)swap(); }
|
|
|
|
// +v
|
|
swapped_t operator +() const {
|
|
return +swap();
|
|
}
|
|
// -v
|
|
swapped_t operator -() const {
|
|
return -swap();
|
|
}
|
|
|
|
// v / 5
|
|
swapped_t operator/(const swapped_t &i) const {
|
|
return swap() / i.swap();
|
|
}
|
|
template <typename S>
|
|
swapped_t operator/(const S &i) const {
|
|
return swap() / i;
|
|
}
|
|
|
|
// v * 5
|
|
swapped_t operator*(const swapped_t &i) const {
|
|
return swap() * i.swap();
|
|
}
|
|
template <typename S>
|
|
swapped_t operator*(const S &i) const {
|
|
return swap() * i;
|
|
}
|
|
|
|
// v + 5
|
|
swapped_t operator+(const swapped_t &i) const {
|
|
return swap() + i.swap();
|
|
}
|
|
template <typename S>
|
|
swapped_t operator+(const S &i) const {
|
|
return swap() + (T)i;
|
|
}
|
|
// v - 5
|
|
swapped_t operator-(const swapped_t &i) const {
|
|
return swap() - i.swap();
|
|
}
|
|
template <typename S>
|
|
swapped_t operator-(const S &i) const {
|
|
return swap() - (T)i;
|
|
}
|
|
|
|
// v += 5
|
|
swapped_t& operator+=(const swapped_t &i) {
|
|
value = swap(swap() + i.swap());
|
|
return *this;
|
|
}
|
|
template <typename S>
|
|
swapped_t& operator+=(const S &i) {
|
|
value = swap(swap() + (T)i);
|
|
return *this;
|
|
}
|
|
// v -= 5
|
|
swapped_t& operator-=(const swapped_t &i) {
|
|
value = swap(swap() - i.swap());
|
|
return *this;
|
|
}
|
|
template <typename S>
|
|
swapped_t& operator-=(const S &i) {
|
|
value = swap(swap() - (T)i);
|
|
return *this;
|
|
}
|
|
|
|
// ++v
|
|
swapped_t& operator++() {
|
|
value = swap(swap()+1);
|
|
return *this;
|
|
}
|
|
// --v
|
|
swapped_t& operator--() {
|
|
value = swap(swap()-1);
|
|
return *this;
|
|
}
|
|
|
|
// v++
|
|
swapped_t operator++(int) {
|
|
swapped_t old = *this;
|
|
value = swap(swap()+1);
|
|
return old;
|
|
}
|
|
// v--
|
|
swapped_t operator--(int) {
|
|
swapped_t old = *this;
|
|
value = swap(swap()-1);
|
|
return old;
|
|
}
|
|
// Comparaison
|
|
// v == i
|
|
bool operator==(const swapped_t &i) const {
|
|
return swap() == i.swap();
|
|
}
|
|
template <typename S>
|
|
bool operator==(const S &i) const {
|
|
return swap() == i;
|
|
}
|
|
|
|
// v != i
|
|
bool operator!=(const swapped_t &i) const {
|
|
return swap() != i.swap();
|
|
}
|
|
template <typename S>
|
|
bool operator!=(const S &i) const {
|
|
return swap() != i;
|
|
}
|
|
|
|
// v > i
|
|
bool operator>(const swapped_t &i) const {
|
|
return swap() > i.swap();
|
|
}
|
|
template <typename S>
|
|
bool operator>(const S &i) const {
|
|
return swap() > i;
|
|
}
|
|
|
|
// v < i
|
|
bool operator<(const swapped_t &i) const {
|
|
return swap() < i.swap();
|
|
}
|
|
template <typename S>
|
|
bool operator<(const S &i) const {
|
|
return swap() < i;
|
|
}
|
|
|
|
// v >= i
|
|
bool operator>=(const swapped_t &i) const {
|
|
return swap() >= i.swap();
|
|
}
|
|
template <typename S>
|
|
bool operator>=(const S &i) const {
|
|
return swap() >= i;
|
|
}
|
|
|
|
// v <= i
|
|
bool operator<=(const swapped_t &i) const {
|
|
return swap() <= i.swap();
|
|
}
|
|
template <typename S>
|
|
bool operator<=(const S &i) const {
|
|
return swap() <= i;
|
|
}
|
|
|
|
// logical
|
|
swapped_t operator !() const {
|
|
return !swap();
|
|
}
|
|
|
|
// bitmath
|
|
swapped_t operator ~() const {
|
|
return ~swap();
|
|
}
|
|
|
|
swapped_t operator &(const swapped_t &b) const {
|
|
return swap() & b.swap();
|
|
}
|
|
template <typename S>
|
|
swapped_t operator &(const S &b) const {
|
|
return swap() & b;
|
|
}
|
|
swapped_t& operator &=(const swapped_t &b) {
|
|
value = swap(swap() & b.swap());
|
|
return *this;
|
|
}
|
|
template <typename S>
|
|
swapped_t& operator &=(const S b) {
|
|
value = swap(swap() & b);
|
|
return *this;
|
|
}
|
|
|
|
swapped_t operator |(const swapped_t &b) const {
|
|
return swap() | b.swap();
|
|
}
|
|
template <typename S>
|
|
swapped_t operator |(const S &b) const {
|
|
return swap() | b;
|
|
}
|
|
swapped_t& operator |=(const swapped_t &b) {
|
|
value = swap(swap() | b.swap());
|
|
return *this;
|
|
}
|
|
template <typename S>
|
|
swapped_t& operator |=(const S &b) {
|
|
value = swap(swap() | b);
|
|
return *this;
|
|
}
|
|
|
|
swapped_t operator ^(const swapped_t &b) const {
|
|
return swap() ^ b.swap();
|
|
}
|
|
template <typename S>
|
|
swapped_t operator ^(const S &b) const {
|
|
return swap() ^ b;
|
|
}
|
|
swapped_t& operator ^=(const swapped_t &b) {
|
|
value = swap(swap() ^ b.swap());
|
|
return *this;
|
|
}
|
|
template <typename S>
|
|
swapped_t& operator ^=(const S &b) {
|
|
value = swap(swap() ^ b);
|
|
return *this;
|
|
}
|
|
|
|
template <typename S>
|
|
swapped_t operator <<(const S &b) const {
|
|
return swap() << b;
|
|
}
|
|
template <typename S>
|
|
swapped_t& operator <<=(const S &b) const {
|
|
value = swap(swap() << b);
|
|
return *this;
|
|
}
|
|
|
|
template <typename S>
|
|
swapped_t operator >>(const S &b) const {
|
|
return swap() >> b;
|
|
}
|
|
template <typename S>
|
|
swapped_t& operator >>=(const S &b) const {
|
|
value = swap(swap() >> b);
|
|
return *this;
|
|
}
|
|
|
|
// Member
|
|
/** todo **/
|
|
|
|
|
|
// Arithmetics
|
|
template <typename S, typename T2, typename F2>
|
|
friend S operator+(const S &p, const swapped_t v);
|
|
|
|
template <typename S, typename T2, typename F2>
|
|
friend S operator-(const S &p, const swapped_t v);
|
|
|
|
template <typename S, typename T2, typename F2>
|
|
friend S operator/(const S &p, const swapped_t v);
|
|
|
|
template <typename S, typename T2, typename F2>
|
|
friend S operator*(const S &p, const swapped_t v);
|
|
|
|
template <typename S, typename T2, typename F2>
|
|
friend S operator%(const S &p, const swapped_t v);
|
|
|
|
// Arithmetics + assignements
|
|
template <typename S, typename T2, typename F2>
|
|
friend S operator+=(const S &p, const swapped_t v);
|
|
|
|
template <typename S, typename T2, typename F2>
|
|
friend S operator-=(const S &p, const swapped_t v);
|
|
|
|
// Bitmath
|
|
template <typename S, typename T2, typename F2>
|
|
friend S operator&(const S &p, const swapped_t v);
|
|
|
|
// Comparison
|
|
template <typename S, typename T2, typename F2>
|
|
friend bool operator<(const S &p, const swapped_t v);
|
|
|
|
template <typename S, typename T2, typename F2>
|
|
friend bool operator>(const S &p, const swapped_t v);
|
|
|
|
template <typename S, typename T2, typename F2>
|
|
friend bool operator<=(const S &p, const swapped_t v);
|
|
|
|
template <typename S, typename T2, typename F2>
|
|
friend bool operator>=(const S &p, const swapped_t v);
|
|
|
|
template <typename S, typename T2, typename F2>
|
|
friend bool operator!=(const S &p, const swapped_t v);
|
|
|
|
template <typename S, typename T2, typename F2>
|
|
friend bool operator==(const S &p, const swapped_t v);
|
|
};
|
|
|
|
|
|
// Arithmetics
|
|
template <typename S, typename T, typename F>
|
|
S operator+(const S &i, const swap_struct_t<T, F> v) {
|
|
return i + v.swap();
|
|
}
|
|
|
|
template <typename S, typename T, typename F>
|
|
S operator-(const S &i, const swap_struct_t<T, F> v) {
|
|
return i - v.swap();
|
|
}
|
|
|
|
template <typename S, typename T, typename F>
|
|
S operator/(const S &i, const swap_struct_t<T, F> v) {
|
|
return i / v.swap();
|
|
}
|
|
|
|
template <typename S, typename T, typename F>
|
|
S operator*(const S &i, const swap_struct_t<T, F> v) {
|
|
return i * v.swap();
|
|
}
|
|
|
|
template <typename S, typename T, typename F>
|
|
S operator%(const S &i, const swap_struct_t<T, F> v) {
|
|
return i % v.swap();
|
|
}
|
|
|
|
// Arithmetics + assignements
|
|
template <typename S, typename T, typename F>
|
|
S &operator+=(S &i, const swap_struct_t<T, F> v) {
|
|
i += v.swap();
|
|
return i;
|
|
}
|
|
|
|
template <typename S, typename T, typename F>
|
|
S &operator-=(S &i, const swap_struct_t<T, F> v) {
|
|
i -= v.swap();
|
|
return i;
|
|
}
|
|
|
|
// Logical
|
|
template <typename S, typename T, typename F>
|
|
S operator&(const S &i, const swap_struct_t<T, F> v) {
|
|
return i & v.swap();
|
|
}
|
|
|
|
template <typename S, typename T, typename F>
|
|
S operator&(const swap_struct_t<T, F> v, const S &i) {
|
|
return (S)(v.swap() & i);
|
|
}
|
|
|
|
|
|
// Comparaison
|
|
template <typename S, typename T, typename F>
|
|
bool operator<(const S &p, const swap_struct_t<T, F> v) {
|
|
return p < v.swap();
|
|
}
|
|
template <typename S, typename T, typename F>
|
|
bool operator>(const S &p, const swap_struct_t<T, F> v) {
|
|
return p > v.swap();
|
|
}
|
|
template <typename S, typename T, typename F>
|
|
bool operator<=(const S &p, const swap_struct_t<T, F> v) {
|
|
return p <= v.swap();
|
|
}
|
|
template <typename S, typename T, typename F>
|
|
bool operator>=(const S &p, const swap_struct_t<T, F> v) {
|
|
return p >= v.swap();
|
|
}
|
|
template <typename S, typename T, typename F>
|
|
bool operator!=(const S &p, const swap_struct_t<T, F> v) {
|
|
return p != v.swap();
|
|
}
|
|
template <typename S, typename T, typename F>
|
|
bool operator==(const S &p, const swap_struct_t<T, F> v) {
|
|
return p == v.swap();
|
|
}
|
|
|
|
template <typename T>
|
|
struct swap_64_t {
|
|
static T swap(T x) {
|
|
return (T)Common::swap64(*(u64 *)&x);
|
|
}
|
|
};
|
|
|
|
template <typename T>
|
|
struct swap_32_t {
|
|
static T swap(T x) {
|
|
return (T)Common::swap32(*(u32 *)&x);
|
|
}
|
|
};
|
|
|
|
template <typename T>
|
|
struct swap_16_t {
|
|
static T swap(T x) {
|
|
return (T)Common::swap16(*(u16 *)&x);
|
|
}
|
|
};
|
|
|
|
template <typename T>
|
|
struct swap_float_t {
|
|
static T swap(T x) {
|
|
return (T)Common::swapf(*(float *)&x);
|
|
}
|
|
};
|
|
|
|
template <typename T>
|
|
struct swap_double_t {
|
|
static T swap(T x) {
|
|
return (T)Common::swapd(*(double *)&x);
|
|
}
|
|
};
|
|
|
|
#if COMMON_LITTLE_ENDIAN
|
|
typedef u32 u32_le;
|
|
typedef u16 u16_le;
|
|
typedef u64 u64_le;
|
|
|
|
typedef s32 s32_le;
|
|
typedef s16 s16_le;
|
|
typedef s64 s64_le;
|
|
|
|
typedef float float_le;
|
|
typedef double double_le;
|
|
|
|
typedef swap_struct_t<u64, swap_64_t<u64> > u64_be;
|
|
typedef swap_struct_t<s64, swap_64_t<s64> > s64_be;
|
|
|
|
typedef swap_struct_t<u32, swap_32_t<u32> > u32_be;
|
|
typedef swap_struct_t<s32, swap_32_t<s32> > s32_be;
|
|
|
|
typedef swap_struct_t<u16, swap_16_t<u16> > u16_be;
|
|
typedef swap_struct_t<s16, swap_16_t<s16> > s16_be;
|
|
|
|
typedef swap_struct_t<float, swap_float_t<float> > float_be;
|
|
typedef swap_struct_t<double, swap_double_t<double> > double_be;
|
|
#else
|
|
|
|
typedef swap_struct_t<u64, swap_64_t<u64> > u64_le;
|
|
typedef swap_struct_t<s64, swap_64_t<s64> > s64_le;
|
|
|
|
typedef swap_struct_t<u32, swap_32_t<u32> > u32_le;
|
|
typedef swap_struct_t<s32, swap_32_t<s32> > s32_le;
|
|
|
|
typedef swap_struct_t<u16, swap_16_t<u16> > u16_le;
|
|
typedef swap_struct_t< s16, swap_16_t<s16> > s16_le;
|
|
|
|
typedef swap_struct_t<float, swap_float_t<float> > float_le;
|
|
typedef swap_struct_t<double, swap_double_t<double> > double_le;
|
|
|
|
typedef u32 u32_be;
|
|
typedef u16 u16_be;
|
|
typedef u64 u64_be;
|
|
|
|
typedef s32 s32_be;
|
|
typedef s16 s16_be;
|
|
typedef s64 s64_be;
|
|
|
|
typedef float float_be;
|
|
typedef double double_be;
|
|
|
|
#endif
|