bgfx/3rdparty/etc2/Tables.cpp

#include "Tables.hpp"

const int32 g_table[8][4] = {
    {  2,  8,   -2,   -8 },
    {  5, 17,   -5,  -17 },
    {  9, 29,   -9,  -29 },
    { 13, 42,  -13,  -42 },
    { 18, 60,  -18,  -60 },
    { 24, 80,  -24,  -80 },
    { 33, 106, -33, -106 },
    { 47, 183, -47, -183 }
};

const int64 g_table256[8][4] = {
    {  2*256,  8*256,   -2*256,   -8*256 },
    {  5*256, 17*256,   -5*256,  -17*256 },
    {  9*256, 29*256,   -9*256,  -29*256 },
    { 13*256, 42*256,  -13*256,  -42*256 },
    { 18*256, 60*256,  -18*256,  -60*256 },
    { 24*256, 80*256,  -24*256,  -80*256 },
    { 33*256, 106*256, -33*256, -106*256 },
    { 47*256, 183*256, -47*256, -183*256 }
};

const uint32 g_id[4][16] = {
    { 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0 },
    { 3, 3, 2, 2, 3, 3, 2, 2, 3, 3, 2, 2, 3, 3, 2, 2 },
    { 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4 },
    { 7, 7, 6, 6, 7, 7, 6, 6, 7, 7, 6, 6, 7, 7, 6, 6 }
};

const uint32 g_avg2[16] = {
    0x00,
    0x11,
    0x22,
    0x33,
    0x44,
    0x55,
    0x66,
    0x77,
    0x88,
    0x99,
    0xAA,
    0xBB,
    0xCC,
    0xDD,
    0xEE,
    0xFF
};

const uint32 g_flags[64] = {
    0x80800402, 0x80800402, 0x80800402, 0x80800402,
    0x80800402, 0x80800402, 0x80800402, 0x8080E002,
    0x80800402, 0x80800402, 0x8080E002, 0x8080E002,
    0x80800402, 0x8080E002, 0x8080E002, 0x8080E002,
    0x80000402, 0x80000402, 0x80000402, 0x80000402,
    0x80000402, 0x80000402, 0x80000402, 0x8000E002,
    0x80000402, 0x80000402, 0x8000E002, 0x8000E002,
    0x80000402, 0x8000E002, 0x8000E002, 0x8000E002,
    0x00800402, 0x00800402, 0x00800402, 0x00800402,
    0x00800402, 0x00800402, 0x00800402, 0x0080E002,
    0x00800402, 0x00800402, 0x0080E002, 0x0080E002,
    0x00800402, 0x0080E002, 0x0080E002, 0x0080E002,
    0x00000402, 0x00000402, 0x00000402, 0x00000402,
    0x00000402, 0x00000402, 0x00000402, 0x0000E002,
    0x00000402, 0x00000402, 0x0000E002, 0x0000E002,
    0x00000402, 0x0000E002, 0x0000E002, 0x0000E002
};

#ifdef __SSE4_1__
const uint8 g_flags_AVX2[64] =
{
    0x63, 0x63, 0x63, 0x63,
    0x63, 0x63, 0x63, 0x7D,
    0x63, 0x63, 0x7D, 0x7D,
    0x63, 0x7D, 0x7D, 0x7D,
    0x43, 0x43, 0x43, 0x43,
    0x43, 0x43, 0x43, 0x5D,
    0x43, 0x43, 0x5D, 0x5D,
    0x43, 0x5D, 0x5D, 0x5D,
    0x23, 0x23, 0x23, 0x23,
    0x23, 0x23, 0x23, 0x3D,
    0x23, 0x23, 0x3D, 0x3D,
    0x23, 0x3D, 0x3D, 0x3D,
    0x03, 0x03, 0x03, 0x03,
    0x03, 0x03, 0x03, 0x1D,
    0x03, 0x03, 0x1D, 0x1D,
    0x03, 0x1D, 0x1D, 0x1D,
};

const __m128i g_table_SIMD[2] =
{
    _mm_setr_epi16(   2,   5,   9,  13,  18,  24,  33,  47),
    _mm_setr_epi16(   8,  17,  29,  42,  60,  80, 106, 183)
};
const __m128i g_table128_SIMD[2] =
{
    _mm_setr_epi16(   2*128,   5*128,   9*128,  13*128,  18*128,  24*128,  33*128,  47*128),
    _mm_setr_epi16(   8*128,  17*128,  29*128,  42*128,  60*128,  80*128, 106*128, 183*128)
};
const __m128i g_table256_SIMD[4] =
{
    _mm_setr_epi32(  2*256,   5*256,   9*256,  13*256),
    _mm_setr_epi32(  8*256,  17*256,  29*256,  42*256),
    _mm_setr_epi32( 18*256,  24*256,  33*256,  47*256),
    _mm_setr_epi32( 60*256,  80*256, 106*256, 183*256)
};
#endif