656 lines
16 KiB
C++
656 lines
16 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(__Bitrig__) || defined(__DragonFly__) || defined(__FreeBSD__) || \
|
|
defined(__NetBSD__) || defined(__OpenBSD__)
|
|
#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 ARCHITECTURE_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 defined(__Bitrig__) || defined(__OpenBSD__)
|
|
// redefine swap16, swap32, swap64 as inline functions
|
|
#undef swap16
|
|
#undef swap32
|
|
#undef swap64
|
|
inline u16 swap16(u16 _data) {
|
|
return __swap16(_data);
|
|
}
|
|
inline u32 swap32(u32 _data) {
|
|
return __swap32(_data);
|
|
}
|
|
inline u64 swap64(u64 _data) {
|
|
return __swap64(_data);
|
|
}
|
|
#elif defined(__DragonFly__) || defined(__FreeBSD__) || defined(__NetBSD__)
|
|
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 {
|
|
using swapped_t = swap_struct_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(static_cast<T>(source));
|
|
return *this;
|
|
}
|
|
|
|
operator s8() const {
|
|
return static_cast<s8>(swap());
|
|
}
|
|
operator u8() const {
|
|
return static_cast<u8>(swap());
|
|
}
|
|
operator s16() const {
|
|
return static_cast<s16>(swap());
|
|
}
|
|
operator u16() const {
|
|
return static_cast<u16>(swap());
|
|
}
|
|
operator s32() const {
|
|
return static_cast<s32>(swap());
|
|
}
|
|
operator u32() const {
|
|
return static_cast<u32>(swap());
|
|
}
|
|
operator s64() const {
|
|
return static_cast<s64>(swap());
|
|
}
|
|
operator u64() const {
|
|
return static_cast<u64>(swap());
|
|
}
|
|
operator float() const {
|
|
return static_cast<float>(swap());
|
|
}
|
|
operator double() const {
|
|
return static_cast<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() + static_cast<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() - static_cast<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() + static_cast<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() - static_cast<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 static_cast<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 static_cast<T>(Common::swap64(x));
|
|
}
|
|
};
|
|
|
|
template <typename T>
|
|
struct swap_32_t {
|
|
static T swap(T x) {
|
|
return static_cast<T>(Common::swap32(x));
|
|
}
|
|
};
|
|
|
|
template <typename T>
|
|
struct swap_16_t {
|
|
static T swap(T x) {
|
|
return static_cast<T>(Common::swap16(x));
|
|
}
|
|
};
|
|
|
|
template <typename T>
|
|
struct swap_float_t {
|
|
static T swap(T x) {
|
|
return static_cast<T>(Common::swapf(x));
|
|
}
|
|
};
|
|
|
|
template <typename T>
|
|
struct swap_double_t {
|
|
static T swap(T x) {
|
|
return static_cast<T>(Common::swapd(x));
|
|
}
|
|
};
|
|
|
|
#if COMMON_LITTLE_ENDIAN
|
|
using u16_le = u16;
|
|
using u32_le = u32;
|
|
using u64_le = u64;
|
|
|
|
using s16_le = s16;
|
|
using s32_le = s32;
|
|
using s64_le = s64;
|
|
|
|
using float_le = float;
|
|
using double_le = double;
|
|
|
|
using u64_be = swap_struct_t<u64, swap_64_t<u64>>;
|
|
using s64_be = swap_struct_t<s64, swap_64_t<s64>>;
|
|
|
|
using u32_be = swap_struct_t<u32, swap_32_t<u32>>;
|
|
using s32_be = swap_struct_t<s32, swap_32_t<s32>>;
|
|
|
|
using u16_be = swap_struct_t<u16, swap_16_t<u16>>;
|
|
using s16_be = swap_struct_t<s16, swap_16_t<s16>>;
|
|
|
|
using float_be = swap_struct_t<float, swap_float_t<float>>;
|
|
using double_be = swap_struct_t<double, swap_double_t<double>>;
|
|
#else
|
|
|
|
using u64_le = swap_struct_t<u64, swap_64_t<u64>>;
|
|
using s64_le = swap_struct_t<s64, swap_64_t<s64>>;
|
|
|
|
using u32_le = swap_struct_t<u32, swap_32_t<u32>>;
|
|
using s32_le = swap_struct_t<s32, swap_32_t<s32>>;
|
|
|
|
using u16_le = swap_struct_t<u16, swap_16_t<u16>>;
|
|
using s16_le = swap_struct_t<s16, swap_16_t<s16>>;
|
|
|
|
using float_le = swap_struct_t<float, swap_float_t<float>>;
|
|
using double_le = swap_struct_t<double, swap_double_t<double>>;
|
|
|
|
using u16_be = u16;
|
|
using u32_be = u32;
|
|
using u64_be = u64;
|
|
|
|
using s16_be = s16;
|
|
using s32_be = s32;
|
|
using s64_be = s64;
|
|
|
|
using float_be = float;
|
|
using double_be = double;
|
|
|
|
#endif
|