minrt/TablesETC1.cpp at master · wheresthecode/minrt · GitHub

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// https://bitbucket.org/wolfpld/etcpak
// Bartosz Taudul <wolf.pld@gmail.com>

#include "TablesETC1.hpp"

const int 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 long long 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 unsigned int 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 }
};

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