1 /* 2 * The copyright in this software is being made available under the 2-clauses 3 * BSD License, included below. This software may be subject to other third 4 * party and contributor rights, including patent rights, and no such rights 5 * are granted under this license. 6 * 7 * Copyright (c) 2002-2014, Universite catholique de Louvain (UCL), Belgium 8 * Copyright (c) 2002-2014, Professor Benoit Macq 9 * Copyright (c) 2001-2003, David Janssens 10 * Copyright (c) 2002-2003, Yannick Verschueren 11 * Copyright (c) 2003-2007, Francois-Olivier Devaux 12 * Copyright (c) 2003-2014, Antonin Descampe 13 * Copyright (c) 2005, Herve Drolon, FreeImage Team 14 * Copyright (c) 2007, Callum Lerwick <seg (at) haxxed.com> 15 * Copyright (c) 2012, Carl Hetherington 16 * All rights reserved. 17 * 18 * Redistribution and use in source and binary forms, with or without 19 * modification, are permitted provided that the following conditions 20 * are met: 21 * 1. Redistributions of source code must retain the above copyright 22 * notice, this list of conditions and the following disclaimer. 23 * 2. Redistributions in binary form must reproduce the above copyright 24 * notice, this list of conditions and the following disclaimer in the 25 * documentation and/or other materials provided with the distribution. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS' 28 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 29 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 30 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 31 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 37 * POSSIBILITY OF SUCH DAMAGE. 38 */ 39 40 #include "opj_includes.h" 41 42 static int t1_init_ctxno_zc(OPJ_UINT32 f, OPJ_UINT32 orient) 43 { 44 int h, v, d, n, t, hv; 45 n = 0; 46 h = ((f & T1_SIGMA_3) != 0) + ((f & T1_SIGMA_5) != 0); 47 v = ((f & T1_SIGMA_1) != 0) + ((f & T1_SIGMA_7) != 0); 48 d = ((f & T1_SIGMA_0) != 0) + ((f & T1_SIGMA_2) != 0) + (( 49 f & T1_SIGMA_8) != 0) + ((f & T1_SIGMA_6) != 0); 50 51 switch (orient) { 52 case 2: 53 t = h; 54 h = v; 55 v = t; 56 case 0: 57 case 1: 58 if (!h) { 59 if (!v) { 60 if (!d) { 61 n = 0; 62 } else if (d == 1) { 63 n = 1; 64 } else { 65 n = 2; 66 } 67 } else if (v == 1) { 68 n = 3; 69 } else { 70 n = 4; 71 } 72 } else if (h == 1) { 73 if (!v) { 74 if (!d) { 75 n = 5; 76 } else { 77 n = 6; 78 } 79 } else { 80 n = 7; 81 } 82 } else { 83 n = 8; 84 } 85 break; 86 case 3: 87 hv = h + v; 88 if (!d) { 89 if (!hv) { 90 n = 0; 91 } else if (hv == 1) { 92 n = 1; 93 } else { 94 n = 2; 95 } 96 } else if (d == 1) { 97 if (!hv) { 98 n = 3; 99 } else if (hv == 1) { 100 n = 4; 101 } else { 102 n = 5; 103 } 104 } else if (d == 2) { 105 if (!hv) { 106 n = 6; 107 } else { 108 n = 7; 109 } 110 } else { 111 n = 8; 112 } 113 break; 114 } 115 116 return (T1_CTXNO_ZC + n); 117 } 118 119 static int t1_init_ctxno_sc(OPJ_UINT32 f) 120 { 121 int hc, vc, n; 122 n = 0; 123 124 hc = opj_int_min(((f & (T1_LUT_SIG_E | T1_LUT_SGN_E)) == 125 T1_LUT_SIG_E) + ((f & (T1_LUT_SIG_W | T1_LUT_SGN_W)) == T1_LUT_SIG_W), 126 1) - opj_int_min(((f & (T1_LUT_SIG_E | T1_LUT_SGN_E)) == 127 (T1_LUT_SIG_E | T1_LUT_SGN_E)) + 128 ((f & (T1_LUT_SIG_W | T1_LUT_SGN_W)) == 129 (T1_LUT_SIG_W | T1_LUT_SGN_W)), 1); 130 131 vc = opj_int_min(((f & (T1_LUT_SIG_N | T1_LUT_SGN_N)) == 132 T1_LUT_SIG_N) + ((f & (T1_LUT_SIG_S | T1_LUT_SGN_S)) == T1_LUT_SIG_S), 133 1) - opj_int_min(((f & (T1_LUT_SIG_N | T1_LUT_SGN_N)) == 134 (T1_LUT_SIG_N | T1_LUT_SGN_N)) + 135 ((f & (T1_LUT_SIG_S | T1_LUT_SGN_S)) == 136 (T1_LUT_SIG_S | T1_LUT_SGN_S)), 1); 137 138 if (hc < 0) { 139 hc = -hc; 140 vc = -vc; 141 } 142 if (!hc) { 143 if (vc == -1) { 144 n = 1; 145 } else if (!vc) { 146 n = 0; 147 } else { 148 n = 1; 149 } 150 } else if (hc == 1) { 151 if (vc == -1) { 152 n = 2; 153 } else if (!vc) { 154 n = 3; 155 } else { 156 n = 4; 157 } 158 } 159 160 return (T1_CTXNO_SC + n); 161 } 162 163 static int t1_init_spb(OPJ_UINT32 f) 164 { 165 int hc, vc, n; 166 167 hc = opj_int_min(((f & (T1_LUT_SIG_E | T1_LUT_SGN_E)) == 168 T1_LUT_SIG_E) + ((f & (T1_LUT_SIG_W | T1_LUT_SGN_W)) == T1_LUT_SIG_W), 169 1) - opj_int_min(((f & (T1_LUT_SIG_E | T1_LUT_SGN_E)) == 170 (T1_LUT_SIG_E | T1_LUT_SGN_E)) + 171 ((f & (T1_LUT_SIG_W | T1_LUT_SGN_W)) == 172 (T1_LUT_SIG_W | T1_LUT_SGN_W)), 1); 173 174 vc = opj_int_min(((f & (T1_LUT_SIG_N | T1_LUT_SGN_N)) == 175 T1_LUT_SIG_N) + ((f & (T1_LUT_SIG_S | T1_LUT_SGN_S)) == T1_LUT_SIG_S), 176 1) - opj_int_min(((f & (T1_LUT_SIG_N | T1_LUT_SGN_N)) == 177 (T1_LUT_SIG_N | T1_LUT_SGN_N)) + 178 ((f & (T1_LUT_SIG_S | T1_LUT_SGN_S)) == 179 (T1_LUT_SIG_S | T1_LUT_SGN_S)), 1); 180 181 if (!hc && !vc) { 182 n = 0; 183 } else { 184 n = (!(hc > 0 || (!hc && vc > 0))); 185 } 186 187 return n; 188 } 189 190 static void dump_array16(int array[], int size) 191 { 192 int i; 193 --size; 194 for (i = 0; i < size; ++i) { 195 printf("0x%04x,", array[i]); 196 if (!((i + 1) & 0x7)) { 197 printf("\n "); 198 } else { 199 printf(" "); 200 } 201 } 202 printf("0x%04x\n};\n\n", array[size]); 203 } 204 205 int main(int argc, char **argv) 206 { 207 unsigned int i, j; 208 double u, v, t; 209 210 int lut_ctxno_zc[2048]; 211 int lut_nmsedec_sig[1 << T1_NMSEDEC_BITS]; 212 int lut_nmsedec_sig0[1 << T1_NMSEDEC_BITS]; 213 int lut_nmsedec_ref[1 << T1_NMSEDEC_BITS]; 214 int lut_nmsedec_ref0[1 << T1_NMSEDEC_BITS]; 215 (void)argc; 216 (void)argv; 217 218 printf("/* This file was automatically generated by t1_generate_luts.c */\n\n"); 219 220 /* lut_ctxno_zc */ 221 for (j = 0; j < 4; ++j) { 222 for (i = 0; i < 512; ++i) { 223 OPJ_UINT32 orient = j; 224 if (orient == 2) { 225 orient = 1; 226 } else if (orient == 1) { 227 orient = 2; 228 } 229 lut_ctxno_zc[(orient << 9) | i] = t1_init_ctxno_zc(i, j); 230 } 231 } 232 233 printf("static const OPJ_BYTE lut_ctxno_zc[2048] = {\n "); 234 for (i = 0; i < 2047; ++i) { 235 printf("%i,", lut_ctxno_zc[i]); 236 if (!((i + 1) & 0x1f)) { 237 printf("\n "); 238 } else { 239 printf(" "); 240 } 241 } 242 printf("%i\n};\n\n", lut_ctxno_zc[2047]); 243 244 /* lut_ctxno_sc */ 245 printf("static const OPJ_BYTE lut_ctxno_sc[256] = {\n "); 246 for (i = 0; i < 255; ++i) { 247 printf("0x%x,", t1_init_ctxno_sc(i)); 248 if (!((i + 1) & 0xf)) { 249 printf("\n "); 250 } else { 251 printf(" "); 252 } 253 } 254 printf("0x%x\n};\n\n", t1_init_ctxno_sc(255)); 255 256 /* lut_spb */ 257 printf("static const OPJ_BYTE lut_spb[256] = {\n "); 258 for (i = 0; i < 255; ++i) { 259 printf("%i,", t1_init_spb(i)); 260 if (!((i + 1) & 0x1f)) { 261 printf("\n "); 262 } else { 263 printf(" "); 264 } 265 } 266 printf("%i\n};\n\n", t1_init_spb(255)); 267 268 /* FIXME FIXME FIXME */ 269 /* fprintf(stdout,"nmsedec luts:\n"); */ 270 for (i = 0U; i < (1U << T1_NMSEDEC_BITS); ++i) { 271 t = i / pow(2, T1_NMSEDEC_FRACBITS); 272 u = t; 273 v = t - 1.5; 274 lut_nmsedec_sig[i] = 275 opj_int_max(0, 276 (int)(floor((u * u - v * v) * pow(2, T1_NMSEDEC_FRACBITS) + 0.5) / pow(2, 277 T1_NMSEDEC_FRACBITS) * 8192.0)); 278 lut_nmsedec_sig0[i] = 279 opj_int_max(0, 280 (int)(floor((u * u) * pow(2, T1_NMSEDEC_FRACBITS) + 0.5) / pow(2, 281 T1_NMSEDEC_FRACBITS) * 8192.0)); 282 u = t - 1.0; 283 if (i & (1 << (T1_NMSEDEC_BITS - 1))) { 284 v = t - 1.5; 285 } else { 286 v = t - 0.5; 287 } 288 lut_nmsedec_ref[i] = 289 opj_int_max(0, 290 (int)(floor((u * u - v * v) * pow(2, T1_NMSEDEC_FRACBITS) + 0.5) / pow(2, 291 T1_NMSEDEC_FRACBITS) * 8192.0)); 292 lut_nmsedec_ref0[i] = 293 opj_int_max(0, 294 (int)(floor((u * u) * pow(2, T1_NMSEDEC_FRACBITS) + 0.5) / pow(2, 295 T1_NMSEDEC_FRACBITS) * 8192.0)); 296 } 297 298 printf("static const OPJ_INT16 lut_nmsedec_sig[1U << T1_NMSEDEC_BITS] = {\n "); 299 dump_array16(lut_nmsedec_sig, 1U << T1_NMSEDEC_BITS); 300 301 printf("static const OPJ_INT16 lut_nmsedec_sig0[1U << T1_NMSEDEC_BITS] = {\n "); 302 dump_array16(lut_nmsedec_sig0, 1U << T1_NMSEDEC_BITS); 303 304 printf("static const OPJ_INT16 lut_nmsedec_ref[1U << T1_NMSEDEC_BITS] = {\n "); 305 dump_array16(lut_nmsedec_ref, 1U << T1_NMSEDEC_BITS); 306 307 printf("static const OPJ_INT16 lut_nmsedec_ref0[1U << T1_NMSEDEC_BITS] = {\n "); 308 dump_array16(lut_nmsedec_ref0, 1U << T1_NMSEDEC_BITS); 309 310 return 0; 311 } 312
