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https://github.com/RPCS3/rpcs3.git
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512 lines
11 KiB
C++
512 lines
11 KiB
C++
#ifndef BETYPE_H_GUARD
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#define BETYPE_H_GUARD
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#include "types.h"
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#include "util/endian.hpp"
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#include <cstring>
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#include <cmath>
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#if __has_include(<bit>)
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#include <bit>
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#else
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#include <type_traits>
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#endif
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// 128-bit vector type and also se_storage<> storage type
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union alignas(16) v128
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{
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uchar _bytes[16];
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char _chars[16];
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template <typename T, std::size_t N, std::size_t M>
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struct masked_array_t // array type accessed as (index ^ M)
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{
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char m_data[16];
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public:
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T& operator[](std::size_t index)
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{
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return reinterpret_cast<T*>(m_data)[index ^ M];
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}
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const T& operator[](std::size_t index) const
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{
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return reinterpret_cast<const T*>(m_data)[index ^ M];
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}
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};
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template <typename T, std::size_t N = 16 / sizeof(T)>
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using normal_array_t = masked_array_t<T, N, std::endian::little == std::endian::native ? 0 : N - 1>;
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template <typename T, std::size_t N = 16 / sizeof(T)>
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using reversed_array_t = masked_array_t<T, N, std::endian::little == std::endian::native ? N - 1 : 0>;
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normal_array_t<u64> _u64;
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normal_array_t<s64> _s64;
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reversed_array_t<u64> u64r;
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reversed_array_t<s64> s64r;
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normal_array_t<u32> _u32;
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normal_array_t<s32> _s32;
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reversed_array_t<u32> u32r;
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reversed_array_t<s32> s32r;
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normal_array_t<u16> _u16;
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normal_array_t<s16> _s16;
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reversed_array_t<u16> u16r;
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reversed_array_t<s16> s16r;
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normal_array_t<u8> _u8;
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normal_array_t<s8> _s8;
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reversed_array_t<u8> u8r;
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reversed_array_t<s8> s8r;
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normal_array_t<f32> _f;
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normal_array_t<f64> _d;
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reversed_array_t<f32> fr;
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reversed_array_t<f64> dr;
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__m128 vf;
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__m128i vi;
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__m128d vd;
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struct bit_array_128
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{
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char m_data[16];
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public:
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class bit_element
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{
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u64& data;
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const u64 mask;
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public:
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bit_element(u64& data, const u64 mask)
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: data(data)
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, mask(mask)
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{
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}
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operator bool() const
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{
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return (data & mask) != 0;
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}
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bit_element& operator=(const bool right)
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{
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if (right)
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{
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data |= mask;
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}
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else
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{
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data &= ~mask;
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}
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return *this;
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}
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bit_element& operator=(const bit_element& right)
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{
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if (right)
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{
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data |= mask;
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}
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else
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{
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data &= ~mask;
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}
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return *this;
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}
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};
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// Index 0 returns the MSB and index 127 returns the LSB
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bit_element operator[](u32 index)
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{
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const auto data_ptr = reinterpret_cast<u64*>(m_data);
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if constexpr (std::endian::little == std::endian::native)
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{
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return bit_element(data_ptr[1 - (index >> 6)], 0x8000000000000000ull >> (index & 0x3F));
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}
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else
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{
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return bit_element(data_ptr[index >> 6], 0x8000000000000000ull >> (index & 0x3F));
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}
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}
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// Index 0 returns the MSB and index 127 returns the LSB
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bool operator[](u32 index) const
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{
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const auto data_ptr = reinterpret_cast<const u64*>(m_data);
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if constexpr (std::endian::little == std::endian::native)
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{
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return (data_ptr[1 - (index >> 6)] & (0x8000000000000000ull >> (index & 0x3F))) != 0;
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}
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else
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{
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return (data_ptr[index >> 6] & (0x8000000000000000ull >> (index & 0x3F))) != 0;
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}
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}
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} _bit;
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static v128 from64(u64 _0, u64 _1 = 0)
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{
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v128 ret;
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ret._u64[0] = _0;
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ret._u64[1] = _1;
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return ret;
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}
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static v128 from64r(u64 _1, u64 _0 = 0)
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{
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return from64(_0, _1);
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}
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static v128 from32(u32 _0, u32 _1 = 0, u32 _2 = 0, u32 _3 = 0)
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{
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v128 ret;
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ret._u32[0] = _0;
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ret._u32[1] = _1;
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ret._u32[2] = _2;
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ret._u32[3] = _3;
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return ret;
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}
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static v128 from32r(u32 _3, u32 _2 = 0, u32 _1 = 0, u32 _0 = 0)
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{
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return from32(_0, _1, _2, _3);
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}
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static v128 from32p(u32 value)
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{
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v128 ret;
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ret.vi = _mm_set1_epi32(static_cast<s32>(value));
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return ret;
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}
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static v128 from16p(u16 value)
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{
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v128 ret;
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ret.vi = _mm_set1_epi16(static_cast<s16>(value));
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return ret;
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}
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static v128 from8p(u8 value)
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{
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v128 ret;
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ret.vi = _mm_set1_epi8(static_cast<s8>(value));
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return ret;
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}
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static v128 fromBit(u32 bit)
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{
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v128 ret = {};
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ret._bit[bit] = true;
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return ret;
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}
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static v128 fromV(__m128i value)
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{
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v128 ret;
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ret.vi = value;
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return ret;
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}
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static v128 fromF(__m128 value)
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{
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v128 ret;
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ret.vf = value;
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return ret;
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}
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static v128 fromD(__m128d value)
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{
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v128 ret;
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ret.vd = value;
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return ret;
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}
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// Unaligned load with optional index offset
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static v128 loadu(const void* ptr, std::size_t index = 0)
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{
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v128 ret;
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std::memcpy(&ret, static_cast<const u8*>(ptr) + index * sizeof(v128), sizeof(v128));
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return ret;
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}
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// Unaligned store with optional index offset
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static void storeu(v128 value, void* ptr, std::size_t index = 0)
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{
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std::memcpy(static_cast<u8*>(ptr) + index * sizeof(v128), &value, sizeof(v128));
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}
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static inline v128 add8(const v128& left, const v128& right)
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{
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return fromV(_mm_add_epi8(left.vi, right.vi));
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}
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static inline v128 add16(const v128& left, const v128& right)
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{
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return fromV(_mm_add_epi16(left.vi, right.vi));
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}
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static inline v128 add32(const v128& left, const v128& right)
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{
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return fromV(_mm_add_epi32(left.vi, right.vi));
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}
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static inline v128 addfs(const v128& left, const v128& right)
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{
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return fromF(_mm_add_ps(left.vf, right.vf));
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}
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static inline v128 addfd(const v128& left, const v128& right)
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{
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return fromD(_mm_add_pd(left.vd, right.vd));
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}
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static inline v128 sub8(const v128& left, const v128& right)
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{
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return fromV(_mm_sub_epi8(left.vi, right.vi));
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}
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static inline v128 sub16(const v128& left, const v128& right)
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{
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return fromV(_mm_sub_epi16(left.vi, right.vi));
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}
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static inline v128 sub32(const v128& left, const v128& right)
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{
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return fromV(_mm_sub_epi32(left.vi, right.vi));
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}
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static inline v128 subfs(const v128& left, const v128& right)
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{
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return fromF(_mm_sub_ps(left.vf, right.vf));
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}
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static inline v128 subfd(const v128& left, const v128& right)
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{
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return fromD(_mm_sub_pd(left.vd, right.vd));
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}
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static inline v128 maxu8(const v128& left, const v128& right)
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{
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return fromV(_mm_max_epu8(left.vi, right.vi));
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}
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static inline v128 minu8(const v128& left, const v128& right)
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{
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return fromV(_mm_min_epu8(left.vi, right.vi));
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}
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static inline v128 eq8(const v128& left, const v128& right)
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{
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return fromV(_mm_cmpeq_epi8(left.vi, right.vi));
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}
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static inline v128 eq16(const v128& left, const v128& right)
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{
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return fromV(_mm_cmpeq_epi16(left.vi, right.vi));
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}
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static inline v128 eq32(const v128& left, const v128& right)
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{
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return fromV(_mm_cmpeq_epi32(left.vi, right.vi));
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}
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static inline v128 eq32f(const v128& left, const v128& right)
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{
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return fromF(_mm_cmpeq_ps(left.vf, right.vf));
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}
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static inline v128 eq64f(const v128& left, const v128& right)
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{
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return fromD(_mm_cmpeq_pd(left.vd, right.vd));
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}
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static inline bool use_fma = false;
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static inline v128 fma32f(v128 a, const v128& b, const v128& c)
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{
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#ifndef __FMA__
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if (use_fma) [[likely]]
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{
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#ifdef _MSC_VER
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a.vf = _mm_fmadd_ps(a.vf, b.vf, c.vf);
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return a;
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#else
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__asm__("vfmadd213ps %[c], %[b], %[a]"
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: [a] "+x" (a.vf)
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: [b] "x" (b.vf)
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, [c] "x" (c.vf));
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return a;
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#endif
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}
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for (int i = 0; i < 4; i++)
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{
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a._f[i] = std::fmaf(a._f[i], b._f[i], c._f[i]);
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}
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return a;
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#else
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a.vf = _mm_fmadd_ps(a.vf, b.vf, c.vf);
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return a;
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#endif
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}
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bool operator==(const v128& right) const
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{
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return _mm_movemask_epi8(v128::eq32(*this, right).vi) == 0xffff;
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}
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bool operator!=(const v128& right) const
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{
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return !operator==(right);
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}
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// result = (~left) & (right)
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static inline v128 andnot(const v128& left, const v128& right)
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{
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return fromV(_mm_andnot_si128(left.vi, right.vi));
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}
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void clear()
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{
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*this = {};
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}
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};
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template <typename T, std::size_t N, std::size_t M>
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struct offset32_array<v128::masked_array_t<T, N, M>>
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{
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template <typename Arg>
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static inline u32 index32(const Arg& arg)
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{
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return u32{sizeof(T)} * (static_cast<u32>(arg) ^ static_cast<u32>(M));
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}
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};
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inline v128 operator|(const v128& left, const v128& right)
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{
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return v128::fromV(_mm_or_si128(left.vi, right.vi));
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}
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inline v128 operator&(const v128& left, const v128& right)
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{
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return v128::fromV(_mm_and_si128(left.vi, right.vi));
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}
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inline v128 operator^(const v128& left, const v128& right)
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{
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return v128::fromV(_mm_xor_si128(left.vi, right.vi));
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}
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inline v128 operator~(const v128& other)
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{
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return other ^ v128::from32p(UINT32_MAX); // XOR with ones
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}
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using stx::se_t;
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using stx::se_storage;
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// se_t<> with native endianness
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template <typename T, std::size_t Align = alignof(T)>
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using nse_t = se_t<T, false, Align>;
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template <typename T, std::size_t Align = alignof(T)>
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using be_t = se_t<T, std::endian::little == std::endian::native, Align>;
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template <typename T, std::size_t Align = alignof(T)>
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using le_t = se_t<T, std::endian::big == std::endian::native, Align>;
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// Type converter: converts native endianness arithmetic/enum types to appropriate se_t<> type
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template <typename T, bool Se, typename = void>
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struct to_se
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{
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template <typename T2, typename = void>
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struct to_se_
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{
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using type = T2;
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};
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template <typename T2>
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struct to_se_<T2, std::enable_if_t<std::is_arithmetic<T2>::value || std::is_enum<T2>::value>>
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{
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using type = std::conditional_t<(sizeof(T2) > 1), se_t<T2, Se>, T2>;
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};
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// Convert arithmetic and enum types
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using type = typename to_se_<T>::type;
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};
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template <bool Se>
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struct to_se<v128, Se>
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{
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using type = se_t<v128, Se>;
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};
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template <bool Se>
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struct to_se<u128, Se>
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{
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using type = se_t<u128, Se>;
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};
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template <bool Se>
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struct to_se<s128, Se>
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{
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using type = se_t<s128, Se>;
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};
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template <typename T, bool Se>
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struct to_se<const T, Se, std::enable_if_t<!std::is_array<T>::value>>
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{
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// Move const qualifier
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using type = const typename to_se<T, Se>::type;
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};
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template <typename T, bool Se>
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struct to_se<volatile T, Se, std::enable_if_t<!std::is_array<T>::value && !std::is_const<T>::value>>
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{
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// Move volatile qualifier
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using type = volatile typename to_se<T, Se>::type;
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};
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template <typename T, bool Se>
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struct to_se<T[], Se>
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{
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// Move array qualifier
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using type = typename to_se<T, Se>::type[];
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};
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template <typename T, bool Se, std::size_t N>
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struct to_se<T[N], Se>
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{
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// Move array qualifier
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using type = typename to_se<T, Se>::type[N];
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};
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// BE/LE aliases for to_se<>
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template <typename T>
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using to_be_t = typename to_se<T, std::endian::little == std::endian::native>::type;
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template <typename T>
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using to_le_t = typename to_se<T, std::endian::big == std::endian::native>::type;
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// BE/LE aliases for atomic_t
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template <typename T, std::size_t Align = alignof(T)>
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using atomic_be_t = atomic_t<be_t<T>, Align>;
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template <typename T, std::size_t Align = alignof(T)>
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using atomic_le_t = atomic_t<le_t<T>, Align>;
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template <typename T, bool Se, std::size_t Align>
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struct fmt_unveil<se_t<T, Se, Align>, void>
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{
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using type = typename fmt_unveil<T>::type;
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static inline auto get(const se_t<T, Se, Align>& arg)
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{
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return fmt_unveil<T>::get(arg);
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}
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};
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#endif // BETYPE_H_GUARD
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