2 * Copyright (c) 2002-2007, Communications and Remote Sensing Laboratory, Universite catholique de Louvain (UCL), Belgium
3 * Copyright (c) 2002-2007, Professor Benoit Macq
4 * Copyright (c) 2001-2003, David Janssens
5 * Copyright (c) 2002-2003, Yannick Verschueren
6 * Copyright (c) 2003-2007, Francois-Olivier Devaux and Antonin Descampe
7 * Copyright (c) 2005, Herve Drolon, FreeImage Team
8 * Copyright (c) 2007, Callum Lerwick <seg@haxxed.com>
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS'
21 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
24 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30 * POSSIBILITY OF SUCH DAMAGE.
33 #include "opj_includes.h"
36 static int t1_init_ctxno_zc(int f, int orient) {
37 int h, v, d, n, t, hv;
39 h = ((f & T1_SIG_W) != 0) + ((f & T1_SIG_E) != 0);
40 v = ((f & T1_SIG_N) != 0) + ((f & T1_SIG_S) != 0);
41 d = ((f & T1_SIG_NW) != 0) + ((f & T1_SIG_NE) != 0) + ((f & T1_SIG_SE) != 0) + ((f & T1_SIG_SW) != 0);
105 return (T1_CTXNO_ZC + n);
108 static int t1_init_ctxno_sc(int f) {
112 hc = int_min(((f & (T1_SIG_E | T1_SGN_E)) ==
113 T1_SIG_E) + ((f & (T1_SIG_W | T1_SGN_W)) == T1_SIG_W),
114 1) - int_min(((f & (T1_SIG_E | T1_SGN_E)) ==
115 (T1_SIG_E | T1_SGN_E)) +
116 ((f & (T1_SIG_W | T1_SGN_W)) ==
117 (T1_SIG_W | T1_SGN_W)), 1);
119 vc = int_min(((f & (T1_SIG_N | T1_SGN_N)) ==
120 T1_SIG_N) + ((f & (T1_SIG_S | T1_SGN_S)) == T1_SIG_S),
121 1) - int_min(((f & (T1_SIG_N | T1_SGN_N)) ==
122 (T1_SIG_N | T1_SGN_N)) +
123 ((f & (T1_SIG_S | T1_SGN_S)) ==
124 (T1_SIG_S | T1_SGN_S)), 1);
137 } else if (hc == 1) {
146 return (T1_CTXNO_SC + n);
149 static int t1_init_spb(int f) {
152 hc = int_min(((f & (T1_SIG_E | T1_SGN_E)) ==
153 T1_SIG_E) + ((f & (T1_SIG_W | T1_SGN_W)) == T1_SIG_W),
154 1) - int_min(((f & (T1_SIG_E | T1_SGN_E)) ==
155 (T1_SIG_E | T1_SGN_E)) +
156 ((f & (T1_SIG_W | T1_SGN_W)) ==
157 (T1_SIG_W | T1_SGN_W)), 1);
159 vc = int_min(((f & (T1_SIG_N | T1_SGN_N)) ==
160 T1_SIG_N) + ((f & (T1_SIG_S | T1_SGN_S)) == T1_SIG_S),
161 1) - int_min(((f & (T1_SIG_N | T1_SGN_N)) ==
162 (T1_SIG_N | T1_SGN_N)) +
163 ((f & (T1_SIG_S | T1_SGN_S)) ==
164 (T1_SIG_S | T1_SGN_S)), 1);
169 n = (!(hc > 0 || (!hc && vc > 0)));
174 void dump_array16(int array[],int size){
177 for (i = 0; i < size; ++i) {
178 printf("0x%04x, ", array[i]);
182 printf("0x%04x\n};\n\n", array[size]);
189 int lut_ctxno_zc[1024];
190 int lut_nmsedec_sig[1 << T1_NMSEDEC_BITS];
191 int lut_nmsedec_sig0[1 << T1_NMSEDEC_BITS];
192 int lut_nmsedec_ref[1 << T1_NMSEDEC_BITS];
193 int lut_nmsedec_ref0[1 << T1_NMSEDEC_BITS];
195 printf("/* This file was automatically generated by t1_generate_luts.c */\n\n");
198 for (j = 0; j < 4; ++j) {
199 for (i = 0; i < 256; ++i) {
203 } else if (orient == 1) {
206 lut_ctxno_zc[(orient << 8) | i] = t1_init_ctxno_zc(i, j);
210 printf("static char lut_ctxno_zc[1024] = {\n ");
211 for (i = 0; i < 1023; ++i) {
212 printf("%i, ", lut_ctxno_zc[i]);
216 printf("%i\n};\n\n", lut_ctxno_zc[1023]);
219 printf("static char lut_ctxno_sc[256] = {\n ");
220 for (i = 0; i < 255; ++i) {
221 printf("0x%x, ", t1_init_ctxno_sc(i << 4));
225 printf("0x%x\n};\n\n", t1_init_ctxno_sc(255 << 4));
228 printf("static char lut_spb[256] = {\n ");
229 for (i = 0; i < 255; ++i) {
230 printf("%i, ", t1_init_spb(i << 4));
234 printf("%i\n};\n\n", t1_init_spb(255 << 4));
236 /* FIXME FIXME FIXME */
237 /* fprintf(stdout,"nmsedec luts:\n"); */
238 for (i = 0; i < (1 << T1_NMSEDEC_BITS); ++i) {
239 t = i / pow(2, T1_NMSEDEC_FRACBITS);
244 (int) (floor((u * u - v * v) * pow(2, T1_NMSEDEC_FRACBITS) + 0.5) / pow(2, T1_NMSEDEC_FRACBITS) * 8192.0));
245 lut_nmsedec_sig0[i] =
247 (int) (floor((u * u) * pow(2, T1_NMSEDEC_FRACBITS) + 0.5) / pow(2, T1_NMSEDEC_FRACBITS) * 8192.0));
249 if (i & (1 << (T1_NMSEDEC_BITS - 1))) {
256 (int) (floor((u * u - v * v) * pow(2, T1_NMSEDEC_FRACBITS) + 0.5) / pow(2, T1_NMSEDEC_FRACBITS) * 8192.0));
257 lut_nmsedec_ref0[i] =
259 (int) (floor((u * u) * pow(2, T1_NMSEDEC_FRACBITS) + 0.5) / pow(2, T1_NMSEDEC_FRACBITS) * 8192.0));
262 printf("static short lut_nmsedec_sig[1 << T1_NMSEDEC_BITS] = {\n ");
263 dump_array16(lut_nmsedec_sig, 1 << T1_NMSEDEC_BITS);
265 printf("static short lut_nmsedec_sig0[1 << T1_NMSEDEC_BITS] = {\n ");
266 dump_array16(lut_nmsedec_sig0, 1 << T1_NMSEDEC_BITS);
268 printf("static short lut_nmsedec_ref[1 << T1_NMSEDEC_BITS] = {\n ");
269 dump_array16(lut_nmsedec_ref, 1 << T1_NMSEDEC_BITS);
271 printf("static short lut_nmsedec_ref0[1 << T1_NMSEDEC_BITS] = {\n ");
272 dump_array16(lut_nmsedec_ref0, 1 << T1_NMSEDEC_BITS);