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| 8436 | maxcodehac | 1 | /* |
| 2 | * Copyright (c) 2002-2007, Communications and Remote Sensing Laboratory, Universite catholique de Louvain (UCL), Belgium |
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| 3 | * Copyright (c) 2002-2007, Professor Benoit Macq |
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| 4 | * Copyright (c) 2001-2003, David Janssens |
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| 5 | * Copyright (c) 2002-2003, Yannick Verschueren |
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| 6 | * Copyright (c) 2003-2007, Francois-Olivier Devaux and Antonin Descampe |
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| 7 | * Copyright (c) 2005, Herve Drolon, FreeImage Team |
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| 8 | * Copyright (c) 2007, Callum Lerwick |
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| 9 | * All rights reserved. |
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| 10 | * |
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| 11 | * Redistribution and use in source and binary forms, with or without |
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| 12 | * modification, are permitted provided that the following conditions |
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| 13 | * are met: |
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| 14 | * 1. Redistributions of source code must retain the above copyright |
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| 15 | * notice, this list of conditions and the following disclaimer. |
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| 16 | * 2. Redistributions in binary form must reproduce the above copyright |
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| 17 | * notice, this list of conditions and the following disclaimer in the |
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| 18 | * documentation and/or other materials provided with the distribution. |
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| 19 | * |
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| 20 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS' |
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| 21 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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| 22 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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| 23 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
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| 24 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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| 25 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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| 26 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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| 27 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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| 28 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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| 29 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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| 30 | * POSSIBILITY OF SUCH DAMAGE. |
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| 31 | */ |
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| 32 | |||
| 33 | #include "opj_includes.h" |
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| 34 | #include |
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| 35 | |||
| 36 | static int t1_init_ctxno_zc(int f, int orient) { |
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| 37 | int h, v, d, n, t, hv; |
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| 38 | n = 0; |
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| 39 | h = ((f & T1_SIG_W) != 0) + ((f & T1_SIG_E) != 0); |
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| 40 | v = ((f & T1_SIG_N) != 0) + ((f & T1_SIG_S) != 0); |
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| 41 | d = ((f & T1_SIG_NW) != 0) + ((f & T1_SIG_NE) != 0) + ((f & T1_SIG_SE) != 0) + ((f & T1_SIG_SW) != 0); |
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| 42 | |||
| 43 | switch (orient) { |
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| 44 | case 2: |
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| 45 | t = h; |
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| 46 | h = v; |
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| 47 | v = t; |
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| 48 | case 0: |
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| 49 | case 1: |
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| 50 | if (!h) { |
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| 51 | if (!v) { |
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| 52 | if (!d) |
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| 53 | n = 0; |
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| 54 | else if (d == 1) |
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| 55 | n = 1; |
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| 56 | else |
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| 57 | n = 2; |
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| 58 | } else if (v == 1) { |
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| 59 | n = 3; |
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| 60 | } else { |
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| 61 | n = 4; |
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| 62 | } |
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| 63 | } else if (h == 1) { |
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| 64 | if (!v) { |
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| 65 | if (!d) |
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| 66 | n = 5; |
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| 67 | else |
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| 68 | n = 6; |
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| 69 | } else { |
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| 70 | n = 7; |
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| 71 | } |
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| 72 | } else |
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| 73 | n = 8; |
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| 74 | break; |
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| 75 | case 3: |
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| 76 | hv = h + v; |
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| 77 | if (!d) { |
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| 78 | if (!hv) { |
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| 79 | n = 0; |
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| 80 | } else if (hv == 1) { |
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| 81 | n = 1; |
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| 82 | } else { |
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| 83 | n = 2; |
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| 84 | } |
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| 85 | } else if (d == 1) { |
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| 86 | if (!hv) { |
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| 87 | n = 3; |
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| 88 | } else if (hv == 1) { |
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| 89 | n = 4; |
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| 90 | } else { |
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| 91 | n = 5; |
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| 92 | } |
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| 93 | } else if (d == 2) { |
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| 94 | if (!hv) { |
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| 95 | n = 6; |
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| 96 | } else { |
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| 97 | n = 7; |
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| 98 | } |
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| 99 | } else { |
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| 100 | n = 8; |
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| 101 | } |
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| 102 | break; |
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| 103 | } |
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| 104 | |||
| 105 | return (T1_CTXNO_ZC + n); |
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| 106 | } |
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| 107 | |||
| 108 | static int t1_init_ctxno_sc(int f) { |
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| 109 | int hc, vc, n; |
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| 110 | n = 0; |
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| 111 | |||
| 112 | hc = int_min(((f & (T1_SIG_E | T1_SGN_E)) == |
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| 113 | T1_SIG_E) + ((f & (T1_SIG_W | T1_SGN_W)) == T1_SIG_W), |
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| 114 | 1) - int_min(((f & (T1_SIG_E | T1_SGN_E)) == |
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| 115 | (T1_SIG_E | T1_SGN_E)) + |
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| 116 | ((f & (T1_SIG_W | T1_SGN_W)) == |
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| 117 | (T1_SIG_W | T1_SGN_W)), 1); |
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| 118 | |||
| 119 | vc = int_min(((f & (T1_SIG_N | T1_SGN_N)) == |
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| 120 | T1_SIG_N) + ((f & (T1_SIG_S | T1_SGN_S)) == T1_SIG_S), |
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| 121 | 1) - int_min(((f & (T1_SIG_N | T1_SGN_N)) == |
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| 122 | (T1_SIG_N | T1_SGN_N)) + |
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| 123 | ((f & (T1_SIG_S | T1_SGN_S)) == |
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| 124 | (T1_SIG_S | T1_SGN_S)), 1); |
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| 125 | |||
| 126 | if (hc < 0) { |
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| 127 | hc = -hc; |
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| 128 | vc = -vc; |
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| 129 | } |
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| 130 | if (!hc) { |
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| 131 | if (vc == -1) |
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| 132 | n = 1; |
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| 133 | else if (!vc) |
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| 134 | n = 0; |
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| 135 | else |
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| 136 | n = 1; |
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| 137 | } else if (hc == 1) { |
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| 138 | if (vc == -1) |
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| 139 | n = 2; |
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| 140 | else if (!vc) |
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| 141 | n = 3; |
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| 142 | else |
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| 143 | n = 4; |
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| 144 | } |
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| 145 | |||
| 146 | return (T1_CTXNO_SC + n); |
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| 147 | } |
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| 148 | |||
| 149 | static int t1_init_spb(int f) { |
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| 150 | int hc, vc, n; |
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| 151 | |||
| 152 | hc = int_min(((f & (T1_SIG_E | T1_SGN_E)) == |
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| 153 | T1_SIG_E) + ((f & (T1_SIG_W | T1_SGN_W)) == T1_SIG_W), |
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| 154 | 1) - int_min(((f & (T1_SIG_E | T1_SGN_E)) == |
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| 155 | (T1_SIG_E | T1_SGN_E)) + |
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| 156 | ((f & (T1_SIG_W | T1_SGN_W)) == |
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| 157 | (T1_SIG_W | T1_SGN_W)), 1); |
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| 158 | |||
| 159 | vc = int_min(((f & (T1_SIG_N | T1_SGN_N)) == |
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| 160 | T1_SIG_N) + ((f & (T1_SIG_S | T1_SGN_S)) == T1_SIG_S), |
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| 161 | 1) - int_min(((f & (T1_SIG_N | T1_SGN_N)) == |
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| 162 | (T1_SIG_N | T1_SGN_N)) + |
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| 163 | ((f & (T1_SIG_S | T1_SGN_S)) == |
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| 164 | (T1_SIG_S | T1_SGN_S)), 1); |
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| 165 | |||
| 166 | if (!hc && !vc) |
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| 167 | n = 0; |
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| 168 | else |
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| 169 | n = (!(hc > 0 || (!hc && vc > 0))); |
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| 170 | |||
| 171 | return n; |
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| 172 | } |
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| 173 | |||
| 174 | void dump_array16(int array[],int size){ |
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| 175 | int i; |
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| 176 | --size; |
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| 177 | for (i = 0; i < size; ++i) { |
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| 178 | printf("0x%04x, ", array[i]); |
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| 179 | if(!((i+1)&0x7)) |
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| 180 | printf("\n "); |
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| 181 | } |
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| 182 | printf("0x%04x\n};\n\n", array[size]); |
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| 183 | } |
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| 184 | |||
| 185 | int main(){ |
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| 186 | int i, j; |
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| 187 | double u, v, t; |
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| 188 | |||
| 189 | int lut_ctxno_zc[1024]; |
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| 190 | int lut_nmsedec_sig[1 << T1_NMSEDEC_BITS]; |
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| 191 | int lut_nmsedec_sig0[1 << T1_NMSEDEC_BITS]; |
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| 192 | int lut_nmsedec_ref[1 << T1_NMSEDEC_BITS]; |
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| 193 | int lut_nmsedec_ref0[1 << T1_NMSEDEC_BITS]; |
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| 194 | |||
| 195 | printf("/* This file was automatically generated by t1_generate_luts.c */\n\n"); |
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| 196 | |||
| 197 | // lut_ctxno_zc |
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| 198 | for (j = 0; j < 4; ++j) { |
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| 199 | for (i = 0; i < 256; ++i) { |
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| 200 | int orient = j; |
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| 201 | if (orient == 2) { |
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| 202 | orient = 1; |
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| 203 | } else if (orient == 1) { |
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| 204 | orient = 2; |
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| 205 | } |
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| 206 | lut_ctxno_zc[(orient << 8) | i] = t1_init_ctxno_zc(i, j); |
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| 207 | } |
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| 208 | } |
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| 209 | |||
| 210 | printf("static char lut_ctxno_zc[1024] = {\n "); |
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| 211 | for (i = 0; i < 1023; ++i) { |
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| 212 | printf("%i, ", lut_ctxno_zc[i]); |
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| 213 | if(!((i+1)&0x1f)) |
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| 214 | printf("\n "); |
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| 215 | } |
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| 216 | printf("%i\n};\n\n", lut_ctxno_zc[1023]); |
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| 217 | |||
| 218 | // lut_ctxno_sc |
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| 219 | printf("static char lut_ctxno_sc[256] = {\n "); |
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| 220 | for (i = 0; i < 255; ++i) { |
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| 221 | printf("0x%x, ", t1_init_ctxno_sc(i << 4)); |
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| 222 | if(!((i+1)&0xf)) |
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| 223 | printf("\n "); |
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| 224 | } |
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| 225 | printf("0x%x\n};\n\n", t1_init_ctxno_sc(255 << 4)); |
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| 226 | |||
| 227 | // lut_spb |
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| 228 | printf("static char lut_spb[256] = {\n "); |
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| 229 | for (i = 0; i < 255; ++i) { |
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| 230 | printf("%i, ", t1_init_spb(i << 4)); |
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| 231 | if(!((i+1)&0x1f)) |
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| 232 | printf("\n "); |
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| 233 | } |
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| 234 | printf("%i\n};\n\n", t1_init_spb(255 << 4)); |
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| 235 | |||
| 236 | /* FIXME FIXME FIXME */ |
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| 237 | /* fprintf(stdout,"nmsedec luts:\n"); */ |
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| 238 | for (i = 0; i < (1 << T1_NMSEDEC_BITS); ++i) { |
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| 239 | t = i / pow(2, T1_NMSEDEC_FRACBITS); |
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| 240 | u = t; |
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| 241 | v = t - 1.5; |
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| 242 | lut_nmsedec_sig[i] = |
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| 243 | int_max(0, |
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| 244 | (int) (floor((u * u - v * v) * pow(2, T1_NMSEDEC_FRACBITS) + 0.5) / pow(2, T1_NMSEDEC_FRACBITS) * 8192.0)); |
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| 245 | lut_nmsedec_sig0[i] = |
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| 246 | int_max(0, |
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| 247 | (int) (floor((u * u) * pow(2, T1_NMSEDEC_FRACBITS) + 0.5) / pow(2, T1_NMSEDEC_FRACBITS) * 8192.0)); |
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| 248 | u = t - 1.0; |
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| 249 | if (i & (1 << (T1_NMSEDEC_BITS - 1))) { |
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| 250 | v = t - 1.5; |
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| 251 | } else { |
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| 252 | v = t - 0.5; |
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| 253 | } |
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| 254 | lut_nmsedec_ref[i] = |
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| 255 | int_max(0, |
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| 256 | (int) (floor((u * u - v * v) * pow(2, T1_NMSEDEC_FRACBITS) + 0.5) / pow(2, T1_NMSEDEC_FRACBITS) * 8192.0)); |
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| 257 | lut_nmsedec_ref0[i] = |
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| 258 | int_max(0, |
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| 259 | (int) (floor((u * u) * pow(2, T1_NMSEDEC_FRACBITS) + 0.5) / pow(2, T1_NMSEDEC_FRACBITS) * 8192.0)); |
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| 260 | } |
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| 261 | |||
| 262 | printf("static short lut_nmsedec_sig[1 << T1_NMSEDEC_BITS] = {\n "); |
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| 263 | dump_array16(lut_nmsedec_sig, 1 << T1_NMSEDEC_BITS); |
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| 264 | |||
| 265 | printf("static short lut_nmsedec_sig0[1 << T1_NMSEDEC_BITS] = {\n "); |
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| 266 | dump_array16(lut_nmsedec_sig0, 1 << T1_NMSEDEC_BITS); |
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| 267 | |||
| 268 | printf("static short lut_nmsedec_ref[1 << T1_NMSEDEC_BITS] = {\n "); |
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| 269 | dump_array16(lut_nmsedec_ref, 1 << T1_NMSEDEC_BITS); |
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| 270 | |||
| 271 | printf("static short lut_nmsedec_ref0[1 << T1_NMSEDEC_BITS] = {\n "); |
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| 272 | dump_array16(lut_nmsedec_ref0, 1 << T1_NMSEDEC_BITS); |
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| 273 | |||
| 274 | return 0; |
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| 275 | } |